This patch are for Crash-utility tool, it make crash tool support on
loongarch64 architecture and the common commands(bt, p, rd, mod, log, set,
dis, and so on).
Signed-off-by: Youling Tang <tangyouling@xxxxxxxxxxx>
Signed-off-by: Ming Wang <wangming01@xxxxxxxxxxx>
---
Makefile | 9 +-
README | 4 +-
configure.c | 27 +-
crash.8 | 2 +-
defs.h | 161 +-
diskdump.c | 24 +-
gdb-10.2-loongarch.patch | 15207 +++++++++++++++++++++++++++++++++++++
gdb_interface.c | 1 -
help.c | 9 +-
lkcd_vmdump_v1.h | 2 +-
lkcd_vmdump_v2_v3.h | 5 +-
loongarch64.c | 1347 ++++
main.c | 3 +-
netdump.c | 26 +-
ramdump.c | 2 +
symbols.c | 26 +-
16 files changed, 16832 insertions(+), 23 deletions(-)
create mode 100644 gdb-10.2-loongarch.patch
create mode 100644 loongarch64.c
diff --git a/Makefile b/Makefile
index a94a243..471929a 100644
--- a/Makefile
+++ b/Makefile
@@ -65,7 +65,7 @@ CFILES=main.c tools.c global_data.c memory.c filesys.c help.c task.c \
kernel.c test.c gdb_interface.c configure.c net.c dev.c bpf.c \
printk.c \
alpha.c x86.c ppc.c ia64.c s390.c s390x.c s390dbf.c ppc64.c x86_64.c \
- arm.c arm64.c mips.c mips64.c riscv64.c sparc64.c \
+ arm.c arm64.c mips.c mips64.c riscv64.c loongarch64.c sparc64.c \
extensions.c remote.c va_server.c va_server_v1.c symbols.c cmdline.c \
lkcd_common.c lkcd_v1.c lkcd_v2_v3.c lkcd_v5.c lkcd_v7.c lkcd_v8.c\
lkcd_fix_mem.c s390_dump.c lkcd_x86_trace.c \
@@ -85,7 +85,7 @@ OBJECT_FILES=main.o tools.o global_data.o memory.o filesys.o help.o task.o \
build_data.o kernel.o test.o gdb_interface.o net.o dev.o bpf.o \
printk.o \
alpha.o x86.o ppc.o ia64.o s390.o s390x.o s390dbf.o ppc64.o x86_64.o \
- arm.o arm64.o mips.o mips64.o riscv64.o sparc64.o \
+ arm.o arm64.o mips.o mips64.o riscv64.o loongarch64.o sparc64.o \
extensions.o remote.o va_server.o va_server_v1.o symbols.o cmdline.o \
lkcd_common.o lkcd_v1.o lkcd_v2_v3.o lkcd_v5.o lkcd_v7.o lkcd_v8.o \
lkcd_fix_mem.o s390_dump.o netdump.o diskdump.o makedumpfile.o xendump.o \
@@ -293,6 +293,8 @@ gdb_unzip:
gdb_patch:
if [ -f ${GDB}.patch ] && [ -s ${GDB}.patch ]; then \
patch -p0 < ${GDB}.patch; cp ${GDB}.patch ${GDB}; fi
+ if [ -f ${GDB}-loongarch.patch ] && [ -s ${GDB}-loongarch.patch ]; then \
+ patch -p0 < ${GDB}-loongarch.patch; cp ${GDB}-loongarch.patch ${GDB}; fi
library: ${OBJECT_FILES}
ar -rs ${PROGRAM}lib.a ${OBJECT_FILES}
@@ -445,6 +447,9 @@ riscv64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} riscv64.c
sparc64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} sparc64.c
${CC} -c ${CRASH_CFLAGS} sparc64.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+loongarch64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} loongarch64.c
+ ${CC} -c ${CRASH_CFLAGS} loongarch64.c ${WARNING_OPTIONS} ${WARNING_ERROR}
+
s390.o: ${GENERIC_HFILES} ${IBM_HFILES} s390.c
${CC} -c ${CRASH_CFLAGS} s390.c ${WARNING_OPTIONS} ${WARNING_ERROR}
diff --git a/README b/README
index cf85cf0..0a76c9a 100644
--- a/README
+++ b/README
@@ -37,8 +37,8 @@
These are the current prerequisites:
o At this point, x86, ia64, x86_64, ppc64, ppc, arm, arm64, alpha, mips,
- mips64, riscv64, s390 and s390x-based kernels are supported. Other
- architectures may be addressed in the future.
+ mips64, riscv64, loongarch64, s390 and s390x-based kernels are supported.
+ Other architectures may be addressed in the future.
o One size fits all -- the utility can be run on any Linux kernel version
version dating back to 2.2.5-15. A primary design goal is to always
diff --git a/configure.c b/configure.c
index 08b52be..d6bf738 100644
--- a/configure.c
+++ b/configure.c
@@ -108,6 +108,7 @@ void add_extra_lib(char *);
#undef SPARC64
#undef MIPS64
#undef RISCV64
+#undef LOONGARCH64
#define UNKNOWN 0
#define X86 1
@@ -124,6 +125,7 @@ void add_extra_lib(char *);
#define SPARC64 12
#define MIPS64 13
#define RISCV64 14
+#define LOONGARCH64 15
#define TARGET_X86 "TARGET=X86"
#define TARGET_ALPHA "TARGET=ALPHA"
@@ -139,6 +141,7 @@ void add_extra_lib(char *);
#define TARGET_MIPS64 "TARGET=MIPS64"
#define TARGET_SPARC64 "TARGET=SPARC64"
#define TARGET_RISCV64 "TARGET=RISCV64"
+#define TARGET_LOONGARCH64 "TARGET=LOONGARCH64"
#define TARGET_CFLAGS_X86 "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64"
#define TARGET_CFLAGS_ALPHA "TARGET_CFLAGS="
@@ -163,6 +166,7 @@ void add_extra_lib(char *);
#define TARGET_CFLAGS_SPARC64 "TARGET_CFLAGS="
#define TARGET_CFLAGS_RISCV64 "TARGET_CFLAGS="
#define TARGET_CFLAGS_RISCV64_ON_X86_64 "TARGET_CFLAGS="
+#define TARGET_CFLAGS_LOONGARCH64 "TARGET_CFLAGS="
#define GDB_TARGET_DEFAULT "GDB_CONF_FLAGS="
#define GDB_TARGET_ARM_ON_X86 "GDB_CONF_FLAGS=--target=arm-elf-linux"
@@ -413,6 +417,9 @@ get_current_configuration(struct supported_gdb_version *sp)
#if defined(__riscv) && (__riscv_xlen == 64)
target_data.target = RISCV64;
#endif
+#ifdef __loongarch64
+ target_data.target = LOONGARCH64;
+#endif
set_initial_target(sp);
@@ -512,6 +519,10 @@ get_current_configuration(struct supported_gdb_version *sp)
(target_data.target != MIPS64))
arch_mismatch(sp);
+ if ((target_data.initial_gdb_target == LOONGARCH64) &&
+ (target_data.target != LOONGARCH64))
+ arch_mismatch(sp);
+
if ((target_data.initial_gdb_target == RISCV64) &&
(target_data.target != RISCV64)) {
if (target_data.target == X86_64)
@@ -686,6 +697,9 @@ show_configuration(void)
case RISCV64:
printf("TARGET: RISCV64\n");
break;
+ case LOONGARCH64:
+ printf("TARGET: LOONGARCH64\n");
+ break;
}
if (strlen(target_data.program)) {
@@ -811,6 +825,10 @@ build_configure(struct supported_gdb_version *sp)
} else
target_CFLAGS = TARGET_CFLAGS_RISCV64;
break;
+ case LOONGARCH64:
+ target = TARGET_LOONGARCH64;
+ target_CFLAGS = TARGET_CFLAGS_LOONGARCH64;
+ break;
}
ldflags = get_extra_flags("LDFLAGS.extra", NULL);
@@ -1408,7 +1426,7 @@ make_spec_file(struct supported_gdb_version *sp)
printf("Vendor: Red Hat, Inc.\n");
printf("Packager: Dave Anderson <anderson@xxxxxxxxxx>\n");
printf("ExclusiveOS: Linux\n");
- printf("ExclusiveArch: %%{ix86} alpha ia64 ppc ppc64 ppc64pseries ppc64iseries x86_64 s390 s390x arm aarch64 ppc64le mips mipsel mips64el sparc64 riscv64\n");
+ printf("ExclusiveArch: %%{ix86} alpha ia64 ppc ppc64 ppc64pseries ppc64iseries x86_64 s390 s390x arm aarch64 ppc64le mips mipsel mips64el sparc64 riscv64 loongarch64\n");
printf("Buildroot: %%{_tmppath}/%%{name}-root\n");
printf("BuildRequires: ncurses-devel zlib-devel bison\n");
printf("Requires: binutils\n");
@@ -1649,6 +1667,8 @@ set_initial_target(struct supported_gdb_version *sp)
target_data.initial_gdb_target = SPARC64;
else if (strncmp(buf, "RISCV64", strlen("RISCV64")) == 0)
target_data.initial_gdb_target = RISCV64;
+ else if (strncmp(buf, "LOONGARCH64", strlen("LOONGARCH64")) == 0)
+ target_data.initial_gdb_target = LOONGARCH64;
}
char *
@@ -1670,6 +1690,7 @@ target_to_name(int target)
case MIPS64: return("MIPS64");
case SPARC64: return("SPARC64");
case RISCV64: return("RISCV64");
+ case LOONGARCH64: return("LOONGARCH64");
}
return "UNKNOWN";
@@ -1738,6 +1759,10 @@ name_to_target(char *name)
return RISCV64;
else if (strncmp(name, "riscv64", strlen("riscv64")) == 0)
return RISCV64;
+ else if (strncmp(name, "loongarch64", strlen("loongarch64")) == 0)
+ return LOONGARCH64;
+ else if (strncmp(name, "LOONGARCH64", strlen("LOONGARCH64")) == 0)
+ return LOONGARCH64;
return UNKNOWN;
}
diff --git a/crash.8 b/crash.8
index e553a0b..0662f92 100644
--- a/crash.8
+++ b/crash.8
@@ -491,7 +491,7 @@ Search for the kernel source code in directory instead of in the
standard location that is compiled into the debuginfo data.
.TP
.BI --kaslr \ offset | auto
-If an x86_64 kernel was configured with
+If an x86, x86_64, s390x or loongarch64 kernel was configured with
.B CONFIG_RANDOMIZE_BASE,
the offset value is equal to the difference between the symbol values
compiled into the vmlinux file and their relocated KASLR values. If set to
diff --git a/defs.h b/defs.h
index 358f365..2a62842 100644
--- a/defs.h
+++ b/defs.h
@@ -76,7 +76,7 @@
#if !defined(X86) && !defined(X86_64) && !defined(ALPHA) && !defined(PPC) && \
!defined(IA64) && !defined(PPC64) && !defined(S390) && !defined(S390X) && \
!defined(ARM) && !defined(ARM64) && !defined(MIPS) && !defined(MIPS64) && \
- !defined(RISCV64) && !defined(SPARC64)
+ !defined(RISCV64) && !defined(LOONGARCH64) && !defined(SPARC64)
#ifdef __alpha__
#define ALPHA
#endif
@@ -121,6 +121,9 @@
#if defined(__riscv) && (__riscv_xlen == 64)
#define RISCV64
#endif
+#ifdef __loongarch64
+#define LOONGARCH64
+#endif
#endif
#ifdef X86
@@ -165,6 +168,9 @@
#ifdef RISCV64
#define NR_CPUS (256)
#endif
+#ifdef LOONGARCH64
+#define NR_CPUS (256)
+#endif
#define NR_DEVICE_DUMPS (64)
@@ -2014,6 +2020,8 @@ struct offset_table { /* stash of commonly-used offsets */
long atomic_t_counter;
long percpu_counter_count;
long mm_struct_mm_count;
+ long task_struct_thread_reg01;
+ long task_struct_thread_reg03;
long task_struct_thread_reg29;
long task_struct_thread_reg31;
long pt_regs_regs;
@@ -3714,6 +3722,43 @@ typedef signed int s32;
#endif /* RISCV64 */
+#ifdef LOONGARCH64
+#define _64BIT_
+#define MACHINE_TYPE "LOONGARCH64"
+
+#define PAGEBASE(X) (((ulong)(X)) & (ulong)machdep->pagemask)
+
+#define IS_XKPRANGE(X) (((X) >= 0x8000000000000000lu) && \
+ ((X) < 0xc000000000000000lu))
+
+#define PTOV(X) ((ulong)(X) + 0x9000000000000000lu)
+#define VTOP(X) ((ulong)(X) & 0x0000fffffffffffflu)
+
+#define IS_VMALLOC_ADDR(X) (vt->vmalloc_start && (ulong)(X) >= vt->vmalloc_start)
+
+#define DEFAULT_MODULES_VADDR 0xffff800000000000lu
+#define MODULES_VADDR (machdep->machspec->modules_vaddr)
+#define MODULES_END (machdep->machspec->modules_end)
+#define VMALLOC_START (machdep->machspec->vmalloc_start_addr)
+#define VMALLOC_END (machdep->machspec->vmalloc_end)
+
+#define __SWP_TYPE_SHIFT 16
+#define __SWP_TYPE_BITS 8
+#define __SWP_TYPE_MASK ((1 << __SWP_TYPE_BITS) - 1)
+#define __SWP_OFFSET_SHIFT (__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
+
+#define SWP_TYPE(entry) (((entry) >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK)
+#define SWP_OFFSET(entry) ((entry) >> __SWP_OFFSET_SHIFT)
+
+#define __swp_type(entry) SWP_TYPE(entry)
+#define __swp_offset(entry) SWP_OFFSET(entry)
+
+#define TIF_SIGPENDING (1)
+
+#define _SECTION_SIZE_BITS 28
+#define _MAX_PHYSMEM_BITS 48
+#endif /* LOONGARCH64 */
+
#ifdef X86
#define _32BIT_
#define MACHINE_TYPE "X86"
@@ -4766,6 +4811,10 @@ struct machine_specific {
#define MAX_HEXADDR_STRLEN (16)
#define UVADDR_PRLEN (16)
#endif
+#ifdef LOONGARCH64
+#define MAX_HEXADDR_STRLEN (16)
+#define UVADDR_PRLEN (16)
+#endif
#define BADADDR ((ulong)(-1))
#define BADVAL ((ulong)(-1))
@@ -5387,6 +5436,9 @@ void dump_build_data(void);
#ifdef SPARC64
#define machdep_init(X) sparc64_init(X)
#endif
+#ifdef LOONGARCH64
+#define machdep_init(X) loongarch64_init(X)
+#endif
int clean_exit(int);
int untrusted_file(FILE *, char *);
char *readmem_function_name(void);
@@ -5878,6 +5930,10 @@ void display_help_screen(char *);
#ifdef RISCV64
#define dump_machdep_table(X) riscv64_dump_machdep_table(X)
#endif
+#ifdef LOONGARCH64
+#define dump_machdep_table(X) loongarch64_dump_machdep_table(X)
+#endif
+
extern char *help_pointer[];
extern char *help_alias[];
extern char *help_ascii[];
@@ -7079,6 +7135,109 @@ int sparc64_vmalloc_addr(ulong);
error(FATAL, "The -d option is not applicable to sparc64.\n")
#endif
+/*
+ * loongarch64.c
+ */
+void loongarch64_display_regs_from_elf_notes(int, FILE *);
+
+#ifdef LOONGARCH64
+void loongarch64_init(int);
+void loongarch64_dump_machdep_table(ulong);
+
+#define display_idt_table() \
+ error(FATAL, "-d option is not applicable to LOONGARCH64 architecture\n")
+
+/* from arch/loongarch/include/asm/ptrace.h */
+struct loongarch64_pt_regs {
+ /* Saved main processor registers. */
+ unsigned long regs[32];
+
+ /* Saved special registers. */
+ unsigned long csr_crmd;
+ unsigned long csr_prmd;
+ unsigned long csr_euen;
+ unsigned long csr_ecfg;
+ unsigned long csr_estat;
+ unsigned long csr_epc;
+ unsigned long csr_badvaddr;
+ unsigned long orig_a0;
+};
+
+struct loongarch64_unwind_frame {
+ unsigned long sp;
+ unsigned long pc;
+ unsigned long ra;
+};
+
+#define KSYMS_START (0x1)
+
+struct machine_specific {
+ ulong phys_base;
+ ulong vmalloc_start_addr;
+ ulong modules_vaddr;
+ ulong modules_end;
+
+ struct loongarch64_pt_regs *crash_task_regs;
+};
+
+/*
+ * Basic page table format:
+ *
+ * 63 62 61 PALEN-1 12 10 9 8 7 6 5 4 3 2 1 0
+ * +----+--+--+------+--------------------+----+--+--+-+-+-+---+---+-+-+
+ * |RPLV|NX|NR| | PA[PALEN-1:12] | |SP|PN|W|P|G|MAT|PLV|D|V|
+ * +----+--+--+------+--------------------+----+--+--+-+-+-+---+---+-+-+
+ *
+ *
+ * Huge page table format:
+ *
+ * 63 62 61 PALEN-1 12 10 9 8 7 6 5 4 3 2 1 0
+ * +----+--+--+------+-----------------+--+----+--+--+-+-+-+---+---+-+-+
+ * |RPLV|NX|NR| | PA[PALEN-1:12] | G| |SP|PN|W|P|H|MAT|PLV|D|V|
+ * +----+--+--+------+-----------------+--+----+--+--+-+-+-+---+---+-+-+
+ *
+ */
+/* from arch/loongarch/include/asm/pgtable-bits.h */
+
+/* Page table bits */
+#define _PAGE_VALID_SHIFT 0
+#define _PAGE_DIRTY_SHIFT 1
+#define _PAGE_PLV_SHIFT 2 /* 2~3, two bits */
+#define _CACHE_SHIFT 4 /* 4~5, two bits */
+#define _PAGE_GLOBAL_SHIFT 6
+#define _PAGE_HUGE_SHIFT 6 /* HUGE is a PMD bit */
+#define _PAGE_PRESENT_SHIFT 7
+#define _PAGE_WRITE_SHIFT 8
+#define _PAGE_PROTNONE_SHIFT 9
+#define _PAGE_SPECIAL_SHIFT 10
+#define _PAGE_HGLOBAL_SHIFT 12 /* HGlobal is a PMD bit */
+#define _PAGE_PFN_SHIFT 12
+#define _PAGE_PFN_END_SHIFT 48
+#define _PAGE_NO_READ_SHIFT 61
+#define _PAGE_NO_EXEC_SHIFT 62
+#define _PAGE_RPLV_SHIFT 63
+
+/* Used only by software */
+#define _PAGE_PRESENT (1UL << _PAGE_PRESENT_SHIFT)
+#define _PAGE_WRITE (1UL << _PAGE_WRITE_SHIFT)
+#define _PAGE_PROTNONE (1UL << _PAGE_PROTNONE_SHIFT)
+#define _PAGE_SPECIAL (1UL << _PAGE_SPECIAL_SHIFT)
+
+/* Used by TLB hardware (placed in EntryLo*) */
+#define _PAGE_VALID (1UL << _PAGE_VALID_SHIFT)
+#define _PAGE_DIRTY (1UL << _PAGE_DIRTY_SHIFT)
+#define _PAGE_PLV (3UL << _PAGE_PLV_SHIFT)
+#define _PAGE_GLOBAL (1UL << _PAGE_GLOBAL_SHIFT)
+#define _PAGE_HUGE (1UL << _PAGE_HUGE_SHIFT)
+#define _PAGE_HGLOBAL (1UL << _PAGE_HGLOBAL_SHIFT)
+#define _PAGE_NO_READ (1UL << _PAGE_NO_READ_SHIFT)
+#define _PAGE_NO_EXEC (1UL << _PAGE_NO_EXEC_SHIFT)
+#define _PAGE_RPLV (1UL << _PAGE_RPLV_SHIFT)
+#define _CACHE_MASK (3UL << _CACHE_SHIFT)
+#define _PFN_SHIFT (PAGESHIFT() - 12 + _PAGE_PFN_SHIFT)
+
+#endif /* LOONGARCH64 */
+
/*
* netdump.c
*/
diff --git a/diskdump.c b/diskdump.c
index 2c284ff..553474b 100644
--- a/diskdump.c
+++ b/diskdump.c
@@ -674,6 +674,9 @@ restart:
else if (STRNEQ(header->utsname.machine, "riscv64") &&
machine_type_mismatch(file, "RISCV64", NULL, 0))
goto err;
+ else if (STRNEQ(header->utsname.machine, "loongarch64") &&
+ machine_type_mismatch(file, "LOONGARCH64", NULL, 0))
+ goto err;
if (header->block_size != block_size) {
block_size = header->block_size;
@@ -834,6 +837,8 @@ restart:
dd->machine_type = EM_SPARCV9;
else if (machine_type("RISCV64"))
dd->machine_type = EM_RISCV;
+ else if (machine_type("LOONGARCH64"))
+ dd->machine_type = EM_LOONGARCH;
else {
error(INFO, "%s: unsupported machine type: %s\n",
DISKDUMP_VALID() ? "diskdump" : "compressed kdump",
@@ -1593,6 +1598,12 @@ get_diskdump_regs_riscv64(struct bt_info *bt, ulong *eip, ulong *esp)
machdep->get_stack_frame(bt, eip, esp);
}
+static void
+get_diskdump_regs_loongarch64(struct bt_info *bt, ulong *eip, ulong *esp)
+{
+ machdep->get_stack_frame(bt, eip, esp);
+}
+
static void
get_diskdump_regs_sparc64(struct bt_info *bt, ulong *eip, ulong *esp)
{
@@ -1676,6 +1687,10 @@ get_diskdump_regs(struct bt_info *bt, ulong *eip, ulong *esp)
get_diskdump_regs_riscv64(bt, eip, esp);
break;
+ case EM_LOONGARCH:
+ get_diskdump_regs_loongarch64(bt, eip, esp);
+ break;
+
default:
error(FATAL, "%s: unsupported machine type: %s\n",
DISKDUMP_VALID() ? "diskdump" : "compressed kdump",
@@ -1823,7 +1838,7 @@ dump_note_offsets(FILE *fp)
if (machine_type("X86_64") || machine_type("S390X") ||
machine_type("ARM64") || machine_type("PPC64") ||
machine_type("SPARC64") || machine_type("MIPS64") ||
- machine_type("RISCV64")) {
+ machine_type("RISCV64") || machine_type("LOONGARCH64")) {
note64 = (void *)dd->notes_buf + tot;
len = sizeof(Elf64_Nhdr);
if (STRNEQ((char *)note64 + len, "QEMU"))
@@ -1934,6 +1949,8 @@ __diskdump_memory_dump(FILE *fp)
fprintf(fp, "(EM_AARCH64)\n"); break;
case EM_SPARCV9:
fprintf(fp, "(EM_SPARCV9)\n"); break;
+ case EM_LOONGARCH:
+ fprintf(fp, "(EM_LOONGARCH)\n"); break;
default:
fprintf(fp, "(unknown)\n"); break;
}
@@ -2620,6 +2637,9 @@ diskdump_display_regs(int cpu, FILE *ofp)
if (machine_type("MIPS64"))
mips64_display_regs_from_elf_notes(cpu, ofp);
+
+ if (machine_type("LOONGARCH64"))
+ loongarch64_display_regs_from_elf_notes(cpu, ofp);
}
void
@@ -2631,7 +2651,7 @@ dump_registers_for_compressed_kdump(void)
!(machine_type("X86") || machine_type("X86_64") ||
machine_type("ARM64") || machine_type("PPC64") ||
machine_type("MIPS") || machine_type("MIPS64") ||
- machine_type("RISCV64")))
+ machine_type("RISCV64") || machine_type("LOONGARCH64"))
error(FATAL, "-r option not supported for this dumpfile\n");
if (machine_type("ARM64") && (kt->cpus != dd->num_prstatus_notes))
diff --git a/gdb-10.2-loongarch.patch b/gdb-10.2-loongarch.patch
new file mode 100644
index 0000000..d5a65d0
--- /dev/null
+++ b/gdb-10.2-loongarch.patch
@@ -0,0 +1,15207 @@
+From 6a84c2ee3967892e476338f8f4b85617ced2c4bb Mon Sep 17 00:00:00 2001
+From: Ming Wang <wangming01@xxxxxxxxxxx>
+Date: Sat, 8 Jul 2023 15:07:21 +0800
+Subject: [PATCH] gdb: Add LoongArch support.
+
+Signed-off-by: Ming Wang <wangming01@xxxxxxxxxxx>
+---
+ bfd/Makefile.am | 17 +-
+ bfd/Makefile.in | 21 +-
+ bfd/archures.c | 5 +
+ bfd/bfd-in2.h | 85 +
+ bfd/config.bfd | 15 +
+ bfd/configure | 2 +
+ bfd/configure.ac | 2 +
+ bfd/cpu-loongarch.c | 61 +
+ bfd/elf-bfd.h | 9 +
+ bfd/elf.c | 114 +-
+ bfd/elfnn-loongarch.c | 4128 ++++++++++++++++++++++
+ bfd/elfxx-loongarch.c | 1618 +++++++++
+ bfd/elfxx-loongarch.h | 45 +
+ bfd/libbfd.h | 80 +
+ bfd/po/BLD-POTFILES.in | 2 +
+ bfd/po/SRC-POTFILES.in | 1 +
+ bfd/reloc.c | 171 +
+ bfd/targets.c | 8 +
+ config.guess | 3 +
+ config.sub | 1 +
+ gdb/Makefile.in | 13 +
+ gdb/arch/loongarch-linux-nat.c | 93 +
+ gdb/arch/loongarch-linux-nat.h | 35 +
+ gdb/arch/loongarch.c | 75 +
+ gdb/arch/loongarch.h | 35 +
+ gdb/configure.host | 3 +
+ gdb/configure.nat | 4 +
+ gdb/configure.tgt | 8 +
+ gdb/doc/gdb.texinfo | 10 +
+ gdb/features/Makefile | 10 +
+ gdb/features/loongarch/base32.c | 48 +
+ gdb/features/loongarch/base32.xml | 46 +
+ gdb/features/loongarch/base64.c | 48 +
+ gdb/features/loongarch/base64.xml | 46 +
+ gdb/features/loongarch/fpu32.c | 54 +
+ gdb/features/loongarch/fpu32.xml | 53 +
+ gdb/features/loongarch/fpu64.c | 62 +
+ gdb/features/loongarch/fpu64.xml | 58 +
+ gdb/features/loongarch/lasx.c | 80 +
+ gdb/features/loongarch/lasx.xml | 59 +
+ gdb/features/loongarch/lbt32.c | 19 +
+ gdb/features/loongarch/lbt32.xml | 17 +
+ gdb/features/loongarch/lbt64.c | 19 +
+ gdb/features/loongarch/lbt64.xml | 17 +
+ gdb/features/loongarch/lsx.c | 80 +
+ gdb/features/loongarch/lsx.xml | 59 +
+ gdb/loongarch-linux-nat.c | 878 +++++
+ gdb/loongarch-linux-tdep.c | 709 ++++
+ gdb/loongarch-linux-tdep.h | 48 +
+ gdb/loongarch-tdep.c | 1926 ++++++++++
+ gdb/loongarch-tdep.h | 61 +
+ gdb/nat/loongarch-linux-watch.c | 330 ++
+ gdb/nat/loongarch-linux-watch.h | 132 +
+ gdb/remote.c | 25 +
+ gdb/target.h | 3 +
+ gdb/testsuite/gdb.base/dump.exp | 4 +
+ gdb/testsuite/gdb.base/float.exp | 2 +
+ gdb/testsuite/gdb.trace/entry-values.exp | 2 +
+ gdb/testsuite/gdb.xml/tdesc-regs.exp | 5 +
+ gdbserver/Makefile.in | 2 +
+ gdbserver/configure.srv | 7 +
+ gdbserver/linux-loongarch-low.cc | 284 ++
+ include/dis-asm.h | 1 +
+ include/elf/common.h | 14 +
+ include/elf/loongarch.h | 267 ++
+ include/opcode/loongarch.h | 239 ++
+ opcodes/Makefile.am | 3 +
+ opcodes/Makefile.in | 6 +
+ opcodes/configure | 1 +
+ opcodes/configure.ac | 1 +
+ opcodes/disassemble.c | 9 +
+ opcodes/disassemble.h | 1 +
+ opcodes/loongarch-coder.c | 481 +++
+ opcodes/loongarch-dis.c | 342 ++
+ opcodes/loongarch-opc.c | 870 +++++
+ opcodes/po/POTFILES.in | 3 +
+ 76 files changed, 14091 insertions(+), 4 deletions(-)
+ create mode 100644 bfd/cpu-loongarch.c
+ create mode 100644 bfd/elfnn-loongarch.c
+ create mode 100644 bfd/elfxx-loongarch.c
+ create mode 100644 bfd/elfxx-loongarch.h
+ create mode 100644 gdb/arch/loongarch-linux-nat.c
+ create mode 100644 gdb/arch/loongarch-linux-nat.h
+ create mode 100644 gdb/arch/loongarch.c
+ create mode 100644 gdb/arch/loongarch.h
+ create mode 100644 gdb/features/loongarch/base32.c
+ create mode 100644 gdb/features/loongarch/base32.xml
+ create mode 100644 gdb/features/loongarch/base64.c
+ create mode 100644 gdb/features/loongarch/base64.xml
+ create mode 100644 gdb/features/loongarch/fpu32.c
+ create mode 100644 gdb/features/loongarch/fpu32.xml
+ create mode 100644 gdb/features/loongarch/fpu64.c
+ create mode 100644 gdb/features/loongarch/fpu64.xml
+ create mode 100644 gdb/features/loongarch/lasx.c
+ create mode 100644 gdb/features/loongarch/lasx.xml
+ create mode 100644 gdb/features/loongarch/lbt32.c
+ create mode 100644 gdb/features/loongarch/lbt32.xml
+ create mode 100644 gdb/features/loongarch/lbt64.c
+ create mode 100644 gdb/features/loongarch/lbt64.xml
+ create mode 100644 gdb/features/loongarch/lsx.c
+ create mode 100644 gdb/features/loongarch/lsx.xml
+ create mode 100644 gdb/loongarch-linux-nat.c
+ create mode 100644 gdb/loongarch-linux-tdep.c
+ create mode 100644 gdb/loongarch-linux-tdep.h
+ create mode 100644 gdb/loongarch-tdep.c
+ create mode 100644 gdb/loongarch-tdep.h
+ create mode 100644 gdb/nat/loongarch-linux-watch.c
+ create mode 100644 gdb/nat/loongarch-linux-watch.h
+ create mode 100644 gdbserver/linux-loongarch-low.cc
+ create mode 100644 include/elf/loongarch.h
+ create mode 100644 include/opcode/loongarch.h
+ create mode 100644 opcodes/loongarch-coder.c
+ create mode 100644 opcodes/loongarch-dis.c
+ create mode 100644 opcodes/loongarch-opc.c
+
+diff --git gdb-10.2/bfd/Makefile.am gdb-10.2/bfd/Makefile.am
+index d07c960..d494ebf 100644
+--- gdb-10.2/bfd/Makefile.am
++++ gdb-10.2/bfd/Makefile.am
+@@ -118,6 +118,7 @@ ALL_MACHINES = \
+ cpu-ip2k.lo \
+ cpu-iq2000.lo \
+ cpu-lm32.lo \
++ cpu-loongarch.lo \
+ cpu-m10200.lo \
+ cpu-m10300.lo \
+ cpu-m32c.lo \
+@@ -202,6 +203,7 @@ ALL_MACHINES_CFILES = \
+ cpu-ip2k.c \
+ cpu-iq2000.c \
+ cpu-lm32.c \
++ cpu-loongarch.c \
+ cpu-m10200.c \
+ cpu-m10300.c \
+ cpu-m32c.c \
+@@ -548,6 +550,9 @@ BFD64_BACKENDS = \
+ elf64-ia64.lo \
+ elf64-ia64-vms.lo \
+ elfxx-ia64.lo \
++ elf32-loongarch.lo \
++ elf64-loongarch.lo \
++ elfxx-loongarch.lo \
+ elfn32-mips.lo \
+ elf64-mips.lo \
+ elfxx-mips.lo \
+@@ -601,6 +606,7 @@ BFD64_BACKENDS_CFILES = \
+ elfn32-mips.c \
+ elfxx-aarch64.c \
+ elfxx-ia64.c \
++ elfxx-loongarch.c \
+ elfxx-mips.c \
+ elfxx-riscv.c \
+ mach-o-aarch64.c \
+@@ -665,6 +671,7 @@ SOURCE_CFILES = \
+ BUILD_CFILES = \
+ elf32-aarch64.c elf64-aarch64.c \
+ elf32-ia64.c elf64-ia64.c \
++ elf32-loongarch.c elf64-loongarch.c \
+ elf32-riscv.c elf64-riscv.c \
+ peigen.c pepigen.c pex64igen.c
+
+@@ -686,7 +693,7 @@ SOURCE_HFILES = \
+ elf-bfd.h elfcode.h elfcore.h elf-hppa.h elf-linker-x86.h \
+ elf-linux-core.h elf-nacl.h elf-s390.h elf-vxworks.h \
+ elfxx-aarch64.h elfxx-ia64.h elfxx-mips.h elfxx-riscv.h \
+- elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h \
++ elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h elfxx-loongarch.h \
+ genlink.h go32stub.h \
+ libaout.h libbfd.h libcoff.h libecoff.h libhppa.h \
+ libpei.h libxcoff.h \
+@@ -842,6 +849,14 @@ elf64-ia64.c : elfnn-ia64.c
+ echo "#line 1 \"elfnn-ia64.c\"" > $@
+ $(SED) -e s/NN/64/g < $< >> $@
+
++elf32-loongarch.c : elfnn-loongarch.c
++ echo "#line 1 \"elfnn-loongarch.c\"" > $@
++ $(SED) -e s/NN/32/g < $< >> $@
++
++elf64-loongarch.c : elfnn-loongarch.c
++ echo "#line 1 \"elfnn-loongarch.c\"" > $@
++ $(SED) -e s/NN/64/g < $< >> $@
++
+ elf32-riscv.c : elfnn-riscv.c
+ echo "#line 1 \"elfnn-riscv.c\"" > $@
+ $(SED) -e s/NN/32/g < $< >> $@
+diff --git gdb-10.2/bfd/Makefile.in gdb-10.2/bfd/Makefile.in
+index 9cad4da..ecf2c20 100644
+--- gdb-10.2/bfd/Makefile.in
++++ gdb-10.2/bfd/Makefile.in
+@@ -543,6 +543,7 @@ ALL_MACHINES = \
+ cpu-ip2k.lo \
+ cpu-iq2000.lo \
+ cpu-lm32.lo \
++ cpu-loongarch.lo \
+ cpu-m10200.lo \
+ cpu-m10300.lo \
+ cpu-m32c.lo \
+@@ -627,6 +628,7 @@ ALL_MACHINES_CFILES = \
+ cpu-ip2k.c \
+ cpu-iq2000.c \
+ cpu-lm32.c \
++ cpu-loongarch.c \
+ cpu-m10200.c \
+ cpu-m10300.c \
+ cpu-m32c.c \
+@@ -975,6 +977,9 @@ BFD64_BACKENDS = \
+ elf64-ia64.lo \
+ elf64-ia64-vms.lo \
+ elfxx-ia64.lo \
++ elf32-loongarch.lo \
++ elf64-loongarch.lo \
++ elfxx-loongarch.lo \
+ elfn32-mips.lo \
+ elf64-mips.lo \
+ elfxx-mips.lo \
+@@ -1028,6 +1033,7 @@ BFD64_BACKENDS_CFILES = \
+ elfn32-mips.c \
+ elfxx-aarch64.c \
+ elfxx-ia64.c \
++ elfxx-loongarch.c \
+ elfxx-mips.c \
+ elfxx-riscv.c \
+ mach-o-aarch64.c \
+@@ -1091,6 +1097,7 @@ SOURCE_CFILES = \
+ BUILD_CFILES = \
+ elf32-aarch64.c elf64-aarch64.c \
+ elf32-ia64.c elf64-ia64.c \
++ elf32-loongarch.c elf64-loongarch.c \
+ elf32-riscv.c elf64-riscv.c \
+ peigen.c pepigen.c pex64igen.c
+
+@@ -1109,7 +1116,7 @@ SOURCE_HFILES = \
+ elf-bfd.h elfcode.h elfcore.h elf-hppa.h elf-linker-x86.h \
+ elf-linux-core.h elf-nacl.h elf-s390.h elf-vxworks.h \
+ elfxx-aarch64.h elfxx-ia64.h elfxx-mips.h elfxx-riscv.h \
+- elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h \
++ elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h elfxx-loongarch.h \
+ genlink.h go32stub.h \
+ libaout.h libbfd.h libcoff.h libecoff.h libhppa.h \
+ libpei.h libxcoff.h \
+@@ -1349,6 +1356,7 @@ distclean-compile:
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-k1om.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-l1om.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-lm32.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-loongarch.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m10200.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m10300.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m32c.Plo@am__quote@
+@@ -1442,6 +1450,7 @@ distclean-compile:
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-ip2k.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-iq2000.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-lm32.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-loongarch.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m32c.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m32r.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m68hc11.Plo@am__quote@
+@@ -1492,6 +1501,7 @@ distclean-compile:
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-hppa.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-ia64-vms.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-ia64.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-loongarch.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-mips.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-mmix.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-nfp.Plo@am__quote@
+@@ -1506,6 +1516,7 @@ distclean-compile:
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfn32-mips.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-aarch64.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-ia64.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-loongarch.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-mips.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-riscv.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-sparc.Plo@am__quote@
+@@ -1972,6 +1983,14 @@ elf64-ia64.c : elfnn-ia64.c
+ echo "#line 1 \"elfnn-ia64.c\"" > $@
+ $(SED) -e s/NN/64/g < $< >> $@
+
++elf32-loongarch.c : elfnn-loongarch.c
++ echo "#line 1 \"elfnn-loongarch.c\"" > $@
++ $(SED) -e s/NN/32/g < $< >> $@
++
++elf64-loongarch.c : elfnn-loongarch.c
++ echo "#line 1 \"elfnn-loongarch.c\"" > $@
++ $(SED) -e s/NN/64/g < $< >> $@
++
+ elf32-riscv.c : elfnn-riscv.c
+ echo "#line 1 \"elfnn-riscv.c\"" > $@
+ $(SED) -e s/NN/32/g < $< >> $@
+diff --git gdb-10.2/bfd/archures.c gdb-10.2/bfd/archures.c
+index 5069864..36ccb1c 100644
+--- gdb-10.2/bfd/archures.c
++++ gdb-10.2/bfd/archures.c
+@@ -555,6 +555,9 @@ DESCRIPTION
+ .#define bfd_mach_ck807 6
+ .#define bfd_mach_ck810 7
+ .#define bfd_mach_ck860 8
++. bfd_arch_loongarch, {* LoongArch *}
++.#define bfd_mach_loongarch32 1
++.#define bfd_mach_loongarch64 2
+ . bfd_arch_last
+ . };
+ */
+@@ -636,6 +639,7 @@ extern const bfd_arch_info_type bfd_iq2000_arch;
+ extern const bfd_arch_info_type bfd_k1om_arch;
+ extern const bfd_arch_info_type bfd_l1om_arch;
+ extern const bfd_arch_info_type bfd_lm32_arch;
++extern const bfd_arch_info_type bfd_loongarch_arch;
+ extern const bfd_arch_info_type bfd_m32c_arch;
+ extern const bfd_arch_info_type bfd_m32r_arch;
+ extern const bfd_arch_info_type bfd_m68hc11_arch;
+@@ -725,6 +729,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] =
+ &bfd_k1om_arch,
+ &bfd_l1om_arch,
+ &bfd_lm32_arch,
++ &bfd_loongarch_arch,
+ &bfd_m32c_arch,
+ &bfd_m32r_arch,
+ &bfd_m68hc11_arch,
+diff --git gdb-10.2/bfd/bfd-in2.h gdb-10.2/bfd/bfd-in2.h
+index 935ba53..e8a38b8 100644
+--- gdb-10.2/bfd/bfd-in2.h
++++ gdb-10.2/bfd/bfd-in2.h
+@@ -1955,6 +1955,9 @@ enum bfd_architecture
+ #define bfd_mach_ck807 6
+ #define bfd_mach_ck810 7
+ #define bfd_mach_ck860 8
++ bfd_arch_loongarch, /* LoongArch */
++#define bfd_mach_loongarch32 1
++#define bfd_mach_loongarch64 2
+ bfd_arch_last
+ };
+
+@@ -6273,6 +6276,88 @@ assembler and not (currently) written to any object files. */
+
+ /* S12Z relocations. */
+ BFD_RELOC_S12Z_OPR,
++
++/* LARCH relocations. */
++ BFD_RELOC_LARCH_TLS_DTPMOD32,
++ BFD_RELOC_LARCH_TLS_DTPREL32,
++ BFD_RELOC_LARCH_TLS_DTPMOD64,
++ BFD_RELOC_LARCH_TLS_DTPREL64,
++ BFD_RELOC_LARCH_TLS_TPREL32,
++ BFD_RELOC_LARCH_TLS_TPREL64,
++ BFD_RELOC_LARCH_MARK_LA,
++ BFD_RELOC_LARCH_MARK_PCREL,
++ BFD_RELOC_LARCH_SOP_PUSH_PCREL,
++ BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE,
++ BFD_RELOC_LARCH_SOP_PUSH_DUP,
++ BFD_RELOC_LARCH_SOP_PUSH_GPREL,
++ BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL,
++ BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT,
++ BFD_RELOC_LARCH_SOP_PUSH_TLS_GD,
++ BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL,
++ BFD_RELOC_LARCH_SOP_ASSERT,
++ BFD_RELOC_LARCH_SOP_NOT,
++ BFD_RELOC_LARCH_SOP_SUB,
++ BFD_RELOC_LARCH_SOP_SL,
++ BFD_RELOC_LARCH_SOP_SR,
++ BFD_RELOC_LARCH_SOP_ADD,
++ BFD_RELOC_LARCH_SOP_AND,
++ BFD_RELOC_LARCH_SOP_IF_ELSE,
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_5,
++ BFD_RELOC_LARCH_SOP_POP_32_U_10_12,
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_12,
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16,
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2,
++ BFD_RELOC_LARCH_SOP_POP_32_S_5_20,
++ BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2,
++ BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2,
++ BFD_RELOC_LARCH_SOP_POP_32_U,
++ BFD_RELOC_LARCH_ADD8,
++ BFD_RELOC_LARCH_ADD16,
++ BFD_RELOC_LARCH_ADD24,
++ BFD_RELOC_LARCH_ADD32,
++ BFD_RELOC_LARCH_ADD64,
++ BFD_RELOC_LARCH_SUB8,
++ BFD_RELOC_LARCH_SUB16,
++ BFD_RELOC_LARCH_SUB24,
++ BFD_RELOC_LARCH_SUB32,
++ BFD_RELOC_LARCH_SUB64,
++ BFD_RELOC_LARCH_B16,
++ BFD_RELOC_LARCH_B21,
++ BFD_RELOC_LARCH_B26,
++ BFD_RELOC_LARCH_ABS_HI20,
++ BFD_RELOC_LARCH_ABS_LO12,
++ BFD_RELOC_LARCH_ABS64_LO20,
++ BFD_RELOC_LARCH_ABS64_HI12,
++ BFD_RELOC_LARCH_PCALA_HI20,
++ BFD_RELOC_LARCH_PCALA_LO12,
++ BFD_RELOC_LARCH_PCALA64_LO20,
++ BFD_RELOC_LARCH_PCALA64_HI12,
++ BFD_RELOC_LARCH_GOT_PC_HI20,
++ BFD_RELOC_LARCH_GOT_PC_LO12,
++ BFD_RELOC_LARCH_GOT64_PC_LO20,
++ BFD_RELOC_LARCH_GOT64_PC_HI12,
++ BFD_RELOC_LARCH_GOT_HI20,
++ BFD_RELOC_LARCH_GOT_LO12,
++ BFD_RELOC_LARCH_GOT64_LO20,
++ BFD_RELOC_LARCH_GOT64_HI12,
++ BFD_RELOC_LARCH_TLS_LE_HI20,
++ BFD_RELOC_LARCH_TLS_LE_LO12,
++ BFD_RELOC_LARCH_TLS_LE64_LO20,
++ BFD_RELOC_LARCH_TLS_LE64_HI12,
++ BFD_RELOC_LARCH_TLS_IE_PC_HI20,
++ BFD_RELOC_LARCH_TLS_IE_PC_LO12,
++ BFD_RELOC_LARCH_TLS_IE64_PC_LO20,
++ BFD_RELOC_LARCH_TLS_IE64_PC_HI12,
++ BFD_RELOC_LARCH_TLS_IE_HI20,
++ BFD_RELOC_LARCH_TLS_IE_LO12,
++ BFD_RELOC_LARCH_TLS_IE64_LO20,
++ BFD_RELOC_LARCH_TLS_IE64_HI12,
++ BFD_RELOC_LARCH_TLS_LD_PC_HI20,
++ BFD_RELOC_LARCH_TLS_LD_HI20,
++ BFD_RELOC_LARCH_TLS_GD_PC_HI20,
++ BFD_RELOC_LARCH_TLS_GD_HI20,
++ BFD_RELOC_LARCH_32_PCREL,
++ BFD_RELOC_LARCH_RELAX,
+ BFD_RELOC_UNUSED };
+
+ typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
+diff --git gdb-10.2/bfd/config.bfd gdb-10.2/bfd/config.bfd
+index 6c2919e..417bdb0 100644
+--- gdb-10.2/bfd/config.bfd
++++ gdb-10.2/bfd/config.bfd
+@@ -183,6 +183,7 @@ hppa*) targ_archs=bfd_hppa_arch ;;
+ i[3-7]86) targ_archs=bfd_i386_arch ;;
+ ia16) targ_archs=bfd_i386_arch ;;
+ lm32) targ_archs=bfd_lm32_arch ;;
++loongarch*) targ_archs=bfd_loongarch_arch ;;
+ m6811*|m68hc11*) targ_archs="bfd_m68hc11_arch bfd_m68hc12_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;;
+ m6812*|m68hc12*) targ_archs="bfd_m68hc12_arch bfd_m68hc11_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;;
+ m68*) targ_archs=bfd_m68k_arch ;;
+@@ -1401,6 +1402,20 @@ case "${targ}" in
+ targ_underscore=yes
+ ;;
+
++#ifdef BFD64
++ loongarch32-*)
++ targ_defvec=loongarch_elf32_vec
++ targ_selvecs="loongarch_elf32_vec"
++ want64=true
++ ;;
++
++ loongarch64-*)
++ targ_defvec=loongarch_elf64_vec
++ targ_selvecs="loongarch_elf32_vec loongarch_elf64_vec"
++ want64=true
++ ;;
++#endif
++
+ # END OF targmatch.h
+ bpf-*-*)
+ echo "*** Configuration $targ is not fully supported." >&2
+diff --git gdb-10.2/bfd/configure gdb-10.2/bfd/configure
+index a9c4fd9..251439e 100755
+--- gdb-10.2/bfd/configure
++++ gdb-10.2/bfd/configure
+@@ -14836,6 +14836,8 @@ do
+ l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
+ lm32_elf32_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
+ lm32_elf32_fdpic_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
++ loongarch_elf32_vec) tb="$tb elf32-loongarch.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf" ;;
++ loongarch_elf64_vec) tb="$tb elf64-loongarch.lo elf64.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf"; target_size=64 ;;
+ m32c_elf32_vec) tb="$tb elf32-m32c.lo elf32.lo $elf" ;;
+ m32r_elf32_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;;
+ m32r_elf32_le_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;;
+diff --git gdb-10.2/bfd/configure.ac gdb-10.2/bfd/configure.ac
+index f62659a..e97c9fc 100644
+--- gdb-10.2/bfd/configure.ac
++++ gdb-10.2/bfd/configure.ac
+@@ -542,6 +542,8 @@ do
+ l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
+ lm32_elf32_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
+ lm32_elf32_fdpic_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
++ loongarch_elf32_vec) tb="$tb elf32-loongarch.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf" ;;
++ loongarch_elf64_vec) tb="$tb elf64-loongarch.lo elf64.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf"; target_size=64 ;;
+ m32c_elf32_vec) tb="$tb elf32-m32c.lo elf32.lo $elf" ;;
+ m32r_elf32_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;;
+ m32r_elf32_le_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;;
+diff --git gdb-10.2/bfd/cpu-loongarch.c gdb-10.2/bfd/cpu-loongarch.c
+new file mode 100644
+index 0000000..01d6c70
+--- /dev/null
++++ gdb-10.2/bfd/cpu-loongarch.c
+@@ -0,0 +1,61 @@
++/* BFD support for LoongArch.
++ Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of BFD, the Binary File Descriptor library.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++
++#include "sysdep.h"
++#include "bfd.h"
++#include "libbfd.h"
++
++static const bfd_arch_info_type bfd_loongarch32_arch =
++{
++ 32, /* 32 bits in a word. */
++ 32, /* 64 bits in an address. */
++ 8, /* 8 bits in a byte. */
++ bfd_arch_loongarch, /* Architecture. */
++ bfd_mach_loongarch32, /* Machine number - 0 for now. */
++ "loongarch32", /* Architecture name. */
++ "Loongarch32", /* Printable name. */
++ 3, /* Section align power. */
++ TRUE, /* This is the default architecture. */
++ bfd_default_compatible, /* Architecture comparison function. */
++ bfd_default_scan, /* String to architecture conversion. */
++ bfd_arch_default_fill, /* Default fill. */
++ NULL, /* Next in list. */
++ 0,
++};
++
++const bfd_arch_info_type bfd_loongarch_arch =
++{
++ 32, /* 32 bits in a word. */
++ 64, /* 64 bits in an address. */
++ 8, /* 8 bits in a byte. */
++ bfd_arch_loongarch, /* Architecture. */
++ /* Machine number of LoongArch64 is larger
++ * so that LoongArch64 is compatible to LoongArch32. */
++ bfd_mach_loongarch64,
++ "loongarch64", /* Architecture name. */
++ "Loongarch64", /* Printable name. */
++ 3, /* Section align power. */
++ TRUE, /* This is the default architecture. */
++ bfd_default_compatible, /* Architecture comparison function. */
++ bfd_default_scan, /* String to architecture conversion. */
++ bfd_arch_default_fill, /* Default fill. */
++ &bfd_loongarch32_arch, /* Next in list. */
++ 0,
++};
+diff --git gdb-10.2/bfd/elf-bfd.h gdb-10.2/bfd/elf-bfd.h
+index eebdf9a..148c08c 100644
+--- gdb-10.2/bfd/elf-bfd.h
++++ gdb-10.2/bfd/elf-bfd.h
+@@ -500,6 +500,7 @@ enum elf_target_id
+ I386_ELF_DATA,
+ IA64_ELF_DATA,
+ LM32_ELF_DATA,
++ LARCH_ELF_DATA,
+ M32R_ELF_DATA,
+ M68HC11_ELF_DATA,
+ M68K_ELF_DATA,
+@@ -2799,6 +2800,14 @@ extern char *elfcore_write_lwpstatus
+ (bfd *, char *, int *, long, int, const void *);
+ extern char *elfcore_write_register_note
+ (bfd *, char *, int *, const char *, const void *, int);
++extern char *elfcore_write_loongarch_cpucfg
++ (bfd *, char *, int *, const void*, int);
++extern char *elfcore_write_loongarch_lbt
++ (bfd *, char *, int *, const void*, int);
++extern char *elfcore_write_loongarch_lsx
++ (bfd *, char *, int *, const void*, int);
++extern char *elfcore_write_loongarch_lasx
++ (bfd *, char *, int *, const void*, int);
+
+ /* Internal structure which holds information to be included in the
+ PRPSINFO section of Linux core files.
+diff --git gdb-10.2/bfd/elf.c gdb-10.2/bfd/elf.c
+index 5a02f8d..580d7c5 100644
+--- gdb-10.2/bfd/elf.c
++++ gdb-10.2/bfd/elf.c
+@@ -4391,7 +4391,7 @@ get_program_header_size (bfd *abfd, struct bfd_link_info *info)
+ {
+ /* If we have a loadable interpreter section, we need a
+ PT_INTERP segment. In this case, assume we also need a
+- PT_PHDR segment, although that may not be true for all
++ PT_PHDR segment, although that may not be TRUE for all
+ targets. */
+ segs += 2;
+ }
+@@ -9903,6 +9903,30 @@ elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note)
+ return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note);
+ }
+
++static bfd_boolean
++elfcore_grok_loongarch_cpucfg (bfd *abfd, Elf_Internal_Note *note)
++{
++ return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-cpucfg", note);
++}
++
++static bfd_boolean
++elfcore_grok_loongarch_lbt (bfd *abfd, Elf_Internal_Note *note)
++{
++ return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lbt", note);
++}
++
++static bfd_boolean
++elfcore_grok_loongarch_lsx (bfd *abfd, Elf_Internal_Note *note)
++{
++ return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lsx", note);
++}
++
++static bfd_boolean
++elfcore_grok_loongarch_lasx (bfd *abfd, Elf_Internal_Note *note)
++{
++ return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lasx", note);
++}
++
+ #if defined (HAVE_PRPSINFO_T)
+ typedef prpsinfo_t elfcore_psinfo_t;
+ #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */
+@@ -10560,6 +10584,34 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note)
+ else
+ return TRUE;
+
++ case NT_LARCH_CPUCFG:
++ if (note->namesz == 6
++ && strcmp (note->namedata, "LINUX") == 0)
++ return elfcore_grok_loongarch_cpucfg (abfd, note);
++ else
++ return TRUE;
++
++ case NT_LARCH_LBT:
++ if (note->namesz == 6
++ && strcmp (note->namedata, "LINUX") == 0)
++ return elfcore_grok_loongarch_lbt (abfd, note);
++ else
++ return TRUE;
++
++ case NT_LARCH_LSX:
++ if (note->namesz == 6
++ && strcmp (note->namedata, "LINUX") == 0)
++ return elfcore_grok_loongarch_lsx (abfd, note);
++ else
++ return TRUE;
++
++ case NT_LARCH_LASX:
++ if (note->namesz == 6
++ && strcmp (note->namedata, "LINUX") == 0)
++ return elfcore_grok_loongarch_lasx (abfd, note);
++ else
++ return TRUE;
++
+ case NT_PRPSINFO:
+ case NT_PSINFO:
+ if (bed->elf_backend_grok_psinfo)
+@@ -11941,6 +11993,55 @@ elfcore_write_arc_v2 (bfd *abfd,
+ note_name, NT_ARC_V2, arc_v2, size);
+ }
+
++char *
++elfcore_write_loongarch_cpucfg (bfd *abfd,
++ char *buf,
++ int *bufsiz,
++ const void *loongarch_cpucfg,
++ int size)
++{
++ char *note_name = "LINUX";
++ return elfcore_write_note (abfd, buf, bufsiz,
++ note_name, NT_LARCH_CPUCFG,
++ loongarch_cpucfg, size);
++}
++
++char *
++elfcore_write_loongarch_lbt (bfd *abfd,
++ char *buf,
++ int *bufsiz,
++ const void *loongarch_lbt,
++ int size)
++{
++ char *note_name = "LINUX";
++ return elfcore_write_note (abfd, buf, bufsiz,
++ note_name, NT_LARCH_LBT, loongarch_lbt, size);
++}
++
++char *
++elfcore_write_loongarch_lsx (bfd *abfd,
++ char *buf,
++ int *bufsiz,
++ const void *loongarch_lsx,
++ int size)
++{
++ char *note_name = "LINUX";
++ return elfcore_write_note (abfd, buf, bufsiz,
++ note_name, NT_LARCH_LSX, loongarch_lsx, size);
++}
++
++char *
++elfcore_write_loongarch_lasx (bfd *abfd,
++ char *buf,
++ int *bufsiz,
++ const void *loongarch_lasx,
++ int size)
++{
++ char *note_name = "LINUX";
++ return elfcore_write_note (abfd, buf, bufsiz,
++ note_name, NT_LARCH_LASX, loongarch_lasx, size);
++}
++
+ char *
+ elfcore_write_register_note (bfd *abfd,
+ char *buf,
+@@ -12025,6 +12126,15 @@ elfcore_write_register_note (bfd *abfd,
+ return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size);
+ if (strcmp (section, ".reg-arc-v2") == 0)
+ return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size);
++ if (strcmp (section, ".reg-loongarch-cpucfg") == 0)
++ return elfcore_write_loongarch_cpucfg (abfd, buf, bufsiz, data, size);
++ if (strcmp (section, ".reg-loongarch-lbt") == 0)
++ return elfcore_write_loongarch_lbt (abfd, buf, bufsiz, data, size);
++ if (strcmp (section, ".reg-loongarch-lsx") == 0)
++ return elfcore_write_loongarch_lsx (abfd, buf, bufsiz, data, size);
++ if (strcmp (section, ".reg-loongarch-lasx") == 0)
++ return elfcore_write_loongarch_lasx (abfd, buf, bufsiz, data, size);
++
+ return NULL;
+ }
+
+@@ -12491,7 +12601,7 @@ _bfd_elf_final_write_processing (bfd *abfd)
+
+ /* Return TRUE for ELF symbol types that represent functions.
+ This is the default version of this function, which is sufficient for
+- most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */
++ most targets. It returns TRUE if TYPE is STT_FUNC or STT_GNU_IFUNC. */
+
+ bfd_boolean
+ _bfd_elf_is_function_type (unsigned int type)
+diff --git gdb-10.2/bfd/elfnn-loongarch.c gdb-10.2/bfd/elfnn-loongarch.c
+new file mode 100644
+index 0000000..226cd59
+--- /dev/null
++++ gdb-10.2/bfd/elfnn-loongarch.c
+@@ -0,0 +1,4128 @@
++/* LoongArch-specific support for NN-bit ELF.
++ Copyright (C) 2021-2022 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of BFD, the Binary File Descriptor library.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++
++#include "ansidecl.h"
++#include "sysdep.h"
++#include "bfd.h"
++#include "libbfd.h"
++#define ARCH_SIZE NN
++#include "elf-bfd.h"
++#include "objalloc.h"
++#include "elf/loongarch.h"
++#include "elfxx-loongarch.h"
++
++static bfd_boolean
++loongarch_info_to_howto_rela (bfd *abfd, arelent *cache_ptr,
++ Elf_Internal_Rela *dst)
++{
++ cache_ptr->howto = loongarch_elf_rtype_to_howto (abfd,
++ ELFNN_R_TYPE (dst->r_info));
++ return cache_ptr->howto != NULL;
++}
++
++/* LoongArch ELF linker hash entry. */
++struct loongarch_elf_link_hash_entry
++{
++ struct elf_link_hash_entry elf;
++
++#define GOT_UNKNOWN 0
++#define GOT_NORMAL 1
++#define GOT_TLS_GD 2
++#define GOT_TLS_IE 4
++#define GOT_TLS_LE 8
++ char tls_type;
++};
++
++#define loongarch_elf_hash_entry(ent) \
++ ((struct loongarch_elf_link_hash_entry *) (ent))
++
++struct _bfd_loongarch_elf_obj_tdata
++{
++ struct elf_obj_tdata root;
++
++ /* The tls_type for each local got entry. */
++ char *local_got_tls_type;
++};
++
++#define _bfd_loongarch_elf_tdata(abfd) \
++ ((struct _bfd_loongarch_elf_obj_tdata *) (abfd)->tdata.any)
++
++#define _bfd_loongarch_elf_local_got_tls_type(abfd) \
++ (_bfd_loongarch_elf_tdata (abfd)->local_got_tls_type)
++
++#define _bfd_loongarch_elf_tls_type(abfd, h, symndx) \
++ (*((h) != NULL \
++ ? &loongarch_elf_hash_entry (h)->tls_type \
++ : &_bfd_loongarch_elf_local_got_tls_type (abfd)[symndx]))
++
++#define is_loongarch_elf(bfd) \
++ (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
++ && elf_tdata (bfd) != NULL \
++ && elf_object_id (bfd) == LARCH_ELF_DATA)
++
++struct loongarch_elf_link_hash_table
++{
++ struct elf_link_hash_table elf;
++
++ /* Short-cuts to get to dynamic linker sections. */
++ asection *sdyntdata;
++
++ /* Small local sym to section mapping cache. */
++ struct sym_cache sym_cache;
++
++ /* Used by local STT_GNU_IFUNC symbols. */
++ htab_t loc_hash_table;
++ void *loc_hash_memory;
++
++ /* The max alignment of output sections. */
++ bfd_vma max_alignment;
++};
++
++/* Get the LoongArch ELF linker hash table from a link_info structure. */
++#define loongarch_elf_hash_table(p) \
++ (elf_hash_table_id (elf_hash_table (p)) == LARCH_ELF_DATA \
++ ? ((struct loongarch_elf_link_hash_table *) ((p)->hash)) \
++ : NULL)
++
++#define MINUS_ONE ((bfd_vma) 0 - 1)
++
++#define sec_addr(sec) ((sec)->output_section->vma + (sec)->output_offset)
++
++#define LARCH_ELF_LOG_WORD_BYTES (ARCH_SIZE == 32 ? 2 : 3)
++#define LARCH_ELF_WORD_BYTES (1 << LARCH_ELF_LOG_WORD_BYTES)
++
++#define PLT_HEADER_INSNS 8
++#define PLT_HEADER_SIZE (PLT_HEADER_INSNS * 4)
++
++#define PLT_ENTRY_INSNS 4
++#define PLT_ENTRY_SIZE (PLT_ENTRY_INSNS * 4)
++
++#define GOT_ENTRY_SIZE (LARCH_ELF_WORD_BYTES)
++
++#define GOTPLT_HEADER_SIZE (GOT_ENTRY_SIZE * 2)
++
++#define elf_backend_want_got_plt 1
++
++#define elf_backend_plt_readonly 1
++
++#define elf_backend_want_plt_sym 1
++#define elf_backend_plt_alignment 4
++#define elf_backend_can_gc_sections 1
++#define elf_backend_can_refcount 1
++#define elf_backend_want_got_sym 1
++
++#define elf_backend_got_header_size (GOT_ENTRY_SIZE * 1)
++
++#define elf_backend_want_dynrelro 1
++#define elf_backend_rela_normal 1
++#define elf_backend_default_execstack 0
++
++/* Generate a PLT header. */
++
++static bfd_boolean
++loongarch_make_plt_header (bfd_vma got_plt_addr, bfd_vma plt_header_addr,
++ uint32_t *entry)
++{
++ bfd_vma pcrel = got_plt_addr - plt_header_addr;
++ bfd_vma hi, lo;
++
++ if (pcrel + 0x80000800 > 0xffffffff)
++ {
++ _bfd_error_handler (_("%#" PRIx64 " invaild imm"), (uint64_t) pcrel);
++ bfd_set_error (bfd_error_bad_value);
++ return FALSE;
++ }
++ hi = ((pcrel + 0x800) >> 12) & 0xfffff;
++ lo = pcrel & 0xfff;
++
++ /* pcaddu12i $t2, %hi(%pcrel(.got.plt))
++ sub.[wd] $t1, $t1, $t3
++ ld.[wd] $t3, $t2, %lo(%pcrel(.got.plt)) # _dl_runtime_resolve
++ addi.[wd] $t1, $t1, -(PLT_HEADER_SIZE + 12)
++ addi.[wd] $t0, $t2, %lo(%pcrel(.got.plt))
++ srli.[wd] $t1, $t1, log2(16 / GOT_ENTRY_SIZE)
++ ld.[wd] $t0, $t0, GOT_ENTRY_SIZE
++ jirl $r0, $t3, 0 */
++
++ if (GOT_ENTRY_SIZE == 8)
++ {
++ entry[0] = 0x1c00000e | (hi & 0xfffff) << 5;
++ entry[1] = 0x0011bdad;
++ entry[2] = 0x28c001cf | (lo & 0xfff) << 10;
++ entry[3] = 0x02c001ad | ((-(PLT_HEADER_SIZE + 12)) & 0xfff) << 10;
++ entry[4] = 0x02c001cc | (lo & 0xfff) << 10;
++ entry[5] = 0x004501ad | (4 - LARCH_ELF_LOG_WORD_BYTES) << 10;
++ entry[6] = 0x28c0018c | GOT_ENTRY_SIZE << 10;
++ entry[7] = 0x4c0001e0;
++ }
++ else
++ {
++ entry[0] = 0x1c00000e | (hi & 0xfffff) << 5;
++ entry[1] = 0x00113dad;
++ entry[2] = 0x288001cf | (lo & 0xfff) << 10;
++ entry[3] = 0x028001ad | ((-(PLT_HEADER_SIZE + 12)) & 0xfff) << 10;
++ entry[4] = 0x028001cc | (lo & 0xfff) << 10;
++ entry[5] = 0x004481ad | (4 - LARCH_ELF_LOG_WORD_BYTES) << 10;
++ entry[6] = 0x2880018c | GOT_ENTRY_SIZE << 10;
++ entry[7] = 0x4c0001e0;
++ }
++ return TRUE;
++}
++
++/* Generate a PLT entry. */
++
++static bfd_boolean
++loongarch_make_plt_entry (bfd_vma got_plt_entry_addr, bfd_vma plt_entry_addr,
++ uint32_t *entry)
++{
++ bfd_vma pcrel = got_plt_entry_addr - plt_entry_addr;
++ bfd_vma hi, lo;
++
++ if (pcrel + 0x80000800 > 0xffffffff)
++ {
++ _bfd_error_handler (_("%#" PRIx64 " invaild imm"), (uint64_t) pcrel);
++ bfd_set_error (bfd_error_bad_value);
++ return FALSE;
++ }
++ hi = ((pcrel + 0x800) >> 12) & 0xfffff;
++ lo = pcrel & 0xfff;
++
++ entry[0] = 0x1c00000f | (hi & 0xfffff) << 5;
++ entry[1] = ((GOT_ENTRY_SIZE == 8 ? 0x28c001ef : 0x288001ef)
++ | (lo & 0xfff) << 10);
++ entry[2] = 0x4c0001ed; /* jirl $r13, $15, 0 */
++ entry[3] = 0x03400000; /* nop */
++
++ return TRUE;
++}
++
++/* Create an entry in an LoongArch ELF linker hash table. */
++
++static struct bfd_hash_entry *
++link_hash_newfunc (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
++ const char *string)
++{
++ struct loongarch_elf_link_hash_entry *eh;
++
++ /* Allocate the structure if it has not already been allocated by a
++ subclass. */
++ if (entry == NULL)
++ {
++ entry = bfd_hash_allocate (table, sizeof (*eh));
++ if (entry == NULL)
++ return entry;
++ }
++
++ /* Call the allocation method of the superclass. */
++ entry = _bfd_elf_link_hash_newfunc (entry, table, string);
++ if (entry != NULL)
++ {
++ eh = (struct loongarch_elf_link_hash_entry *) entry;
++ eh->tls_type = GOT_UNKNOWN;
++ }
++
++ return entry;
++}
++
++/* Compute a hash of a local hash entry. We use elf_link_hash_entry
++ for local symbol so that we can handle local STT_GNU_IFUNC symbols
++ as global symbol. We reuse indx and dynstr_index for local symbol
++ hash since they aren't used by global symbols in this backend. */
++
++static hashval_t
++elfNN_loongarch_local_htab_hash (const void *ptr)
++{
++ struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) ptr;
++ return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
++}
++
++/* Compare local hash entries. */
++
++static int
++elfNN_loongarch_local_htab_eq (const void *ptr1, const void *ptr2)
++{
++ struct elf_link_hash_entry *h1 = (struct elf_link_hash_entry *) ptr1;
++ struct elf_link_hash_entry *h2 = (struct elf_link_hash_entry *) ptr2;
++
++ return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
++}
++
++/* Find and/or create a hash entry for local symbol. */
++static struct elf_link_hash_entry *
++elfNN_loongarch_get_local_sym_hash (struct loongarch_elf_link_hash_table *htab,
++ bfd *abfd, const Elf_Internal_Rela *rel,
++ bfd_boolean create)
++{
++ struct loongarch_elf_link_hash_entry e, *ret;
++ asection *sec = abfd->sections;
++ hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id, ELFNN_R_SYM (rel->r_info));
++ void **slot;
++
++ e.elf.indx = sec->id;
++ e.elf.dynstr_index = ELFNN_R_SYM (rel->r_info);
++ slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
++ create ? INSERT : NO_INSERT);
++
++ if (!slot)
++ return NULL;
++
++ if (*slot)
++ {
++ ret = (struct loongarch_elf_link_hash_entry *) *slot;
++ return &ret->elf;
++ }
++
++ ret = ((struct loongarch_elf_link_hash_entry *)
++ objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
++ sizeof (struct loongarch_elf_link_hash_entry)));
++ if (ret)
++ {
++ memset (ret, 0, sizeof (*ret));
++ ret->elf.indx = sec->id;
++ ret->elf.pointer_equality_needed = 0;
++ ret->elf.dynstr_index = ELFNN_R_SYM (rel->r_info);
++ ret->elf.dynindx = -1;
++ ret->elf.needs_plt = 0;
++ ret->elf.plt.refcount = -1;
++ ret->elf.got.refcount = -1;
++ ret->elf.def_dynamic = 0;
++ ret->elf.def_regular = 1;
++ ret->elf.ref_dynamic = 0; /* This should be always 0 for local. */
++ ret->elf.ref_regular = 0;
++ ret->elf.forced_local = 1;
++ ret->elf.root.type = bfd_link_hash_defined;
++ *slot = ret;
++ }
++ return &ret->elf;
++}
++
++/* Destroy an LoongArch elf linker hash table. */
++
++static void
++elfNN_loongarch_link_hash_table_free (bfd *obfd)
++{
++ struct loongarch_elf_link_hash_table *ret;
++ ret = (struct loongarch_elf_link_hash_table *) obfd->link.hash;
++
++ if (ret->loc_hash_table)
++ htab_delete (ret->loc_hash_table);
++ if (ret->loc_hash_memory)
++ objalloc_free ((struct objalloc *) ret->loc_hash_memory);
++
++ _bfd_elf_link_hash_table_free (obfd);
++}
++
++/* Create a LoongArch ELF linker hash table. */
++
++static struct bfd_link_hash_table *
++loongarch_elf_link_hash_table_create (bfd *abfd)
++{
++ struct loongarch_elf_link_hash_table *ret;
++ bfd_size_type amt = sizeof (struct loongarch_elf_link_hash_table);
++
++ ret = (struct loongarch_elf_link_hash_table *) bfd_zmalloc (amt);
++ if (ret == NULL)
++ return NULL;
++
++ if (!_bfd_elf_link_hash_table_init
++ (&ret->elf, abfd, link_hash_newfunc,
++ sizeof (struct loongarch_elf_link_hash_entry), LARCH_ELF_DATA))
++ {
++ free (ret);
++ return NULL;
++ }
++
++ ret->max_alignment = MINUS_ONE;
++
++ ret->loc_hash_table = htab_try_create (1024, elfNN_loongarch_local_htab_hash,
++ elfNN_loongarch_local_htab_eq, NULL);
++ ret->loc_hash_memory = objalloc_create ();
++ if (!ret->loc_hash_table || !ret->loc_hash_memory)
++ {
++ elfNN_loongarch_link_hash_table_free (abfd);
++ return NULL;
++ }
++ ret->elf.root.hash_table_free = elfNN_loongarch_link_hash_table_free;
++
++ return &ret->elf.root;
++}
++
++/* Merge backend specific data from an object file to the output
++ object file when linking. */
++
++static bfd_boolean
++elfNN_loongarch_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
++{
++ bfd *obfd = info->output_bfd;
++ flagword in_flags = elf_elfheader (ibfd)->e_flags;
++ flagword out_flags = elf_elfheader (obfd)->e_flags;
++
++ if (!is_loongarch_elf (ibfd) || !is_loongarch_elf (obfd))
++ return TRUE;
++
++ if (strcmp (bfd_get_target (ibfd), bfd_get_target (obfd)) != 0)
++ {
++ _bfd_error_handler (_("%pB: ABI is incompatible with that of "
++ "the selected emulation:\n"
++ " target emulation `%s' does not match `%s'"),
++ ibfd, bfd_get_target (ibfd), bfd_get_target (obfd));
++ return FALSE;
++ }
++
++ if (!_bfd_elf_merge_object_attributes (ibfd, info))
++ return FALSE;
++
++ /* If the input BFD is not a dynamic object and it does not contain any
++ non-data sections, do not account its ABI. For example, various
++ packages produces such data-only relocatable objects with
++ `ld -r -b binary` or `objcopy`, and these objects have zero e_flags.
++ But they are compatible with all ABIs. */
++ if (!(ibfd->flags & DYNAMIC))
++ {
++ asection *sec;
++ bfd_boolean have_code_sections = FALSE;
++ for (sec = ibfd->sections; sec != NULL; sec = sec->next)
++ if ((bfd_section_flags (sec)
++ & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
++ == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
++ {
++ have_code_sections = TRUE;
++ break;
++ }
++ if (!have_code_sections)
++ return TRUE;
++ }
++
++ if (!elf_flags_init (obfd))
++ {
++ elf_flags_init (obfd) = TRUE;
++ elf_elfheader (obfd)->e_flags = in_flags;
++ return TRUE;
++ }
++
++ /* Disallow linking different ABIs. */
++ if (EF_LOONGARCH_ABI(out_flags ^ in_flags) & EF_LOONGARCH_ABI_MASK)
++ {
++ _bfd_error_handler (_("%pB: can't link different ABI object."), ibfd);
++ goto fail;
++ }
++
++ return TRUE;
++
++ fail:
++ bfd_set_error (bfd_error_bad_value);
++ return FALSE;
++}
++
++/* Create the .got section. */
++
++static bfd_boolean
++loongarch_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
++{
++ flagword flags;
++ char *name;
++ asection *s, *s_got;
++ struct elf_link_hash_entry *h;
++ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
++ struct elf_link_hash_table *htab = elf_hash_table (info);
++
++ /* This function may be called more than once. */
++ if (htab->sgot != NULL)
++ return TRUE;
++
++ flags = bed->dynamic_sec_flags;
++ name = bed->rela_plts_and_copies_p ? ".rela.got" : ".rel.got";
++ s = bfd_make_section_anyway_with_flags (abfd, name, flags | SEC_READONLY);
++
++ if (s == NULL || !bfd_set_section_alignment (s, bed->s->log_file_align))
++ return FALSE;
++ htab->srelgot = s;
++
++ s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
++ if (s == NULL || !bfd_set_section_alignment (s, bed->s->log_file_align))
++ return FALSE;
++ htab->sgot = s;
++
++ /* The first bit of the global offset table is the header. */
++ s->size += bed->got_header_size;
++
++ if (bed->want_got_plt)
++ {
++ s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
++ if (s == NULL || !bfd_set_section_alignment (s, bed->s->log_file_align))
++ return FALSE;
++ htab->sgotplt = s;
++
++ /* Reserve room for the header. */
++ s->size = GOTPLT_HEADER_SIZE;
++ }
++
++ if (bed->want_got_sym)
++ {
++ /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
++ section. We don't do this in the linker script because we don't want
++ to define the symbol if we are not creating a global offset table. */
++ h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
++ "_GLOBAL_OFFSET_TABLE_");
++ elf_hash_table (info)->hgot = h;
++ if (h == NULL)
++ return FALSE;
++ }
++ return TRUE;
++}
++
++/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
++ .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
++ hash table. */
++
++static bfd_boolean
++loongarch_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
++{
++ struct loongarch_elf_link_hash_table *htab;
++
++ htab = loongarch_elf_hash_table (info);
++ BFD_ASSERT (htab != NULL);
++
++ if (!loongarch_elf_create_got_section (dynobj, info))
++ return FALSE;
++
++ if (!_bfd_elf_create_dynamic_sections (dynobj, info))
++ return FALSE;
++
++ if (!bfd_link_pic (info))
++ htab->sdyntdata
++ = bfd_make_section_anyway_with_flags (dynobj, ".tdata.dyn",
++ SEC_ALLOC | SEC_THREAD_LOCAL);
++
++ if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
++ || (!bfd_link_pic (info) && (!htab->elf.srelbss || !htab->sdyntdata)))
++ abort ();
++
++ return TRUE;
++}
++
++static bfd_boolean
++loongarch_elf_record_tls_and_got_reference (bfd *abfd,
++ struct bfd_link_info *info,
++ struct elf_link_hash_entry *h,
++ unsigned long symndx,
++ char tls_type)
++{
++ struct loongarch_elf_link_hash_table *htab = loongarch_elf_hash_table (info);
++ Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
++
++ /* This is a global offset table entry for a local symbol. */
++ if (elf_local_got_refcounts (abfd) == NULL)
++ {
++ bfd_size_type size =
++ symtab_hdr->sh_info * (sizeof (bfd_vma) + sizeof (tls_type));
++ if (!(elf_local_got_refcounts (abfd) = bfd_zalloc (abfd, size)))
++ return FALSE;
++ _bfd_loongarch_elf_local_got_tls_type (abfd) =
++ (char *) (elf_local_got_refcounts (abfd) + symtab_hdr->sh_info);
++ }
++
++ switch (tls_type)
++ {
++ case GOT_NORMAL:
++ case GOT_TLS_GD:
++ case GOT_TLS_IE:
++ /* Need GOT. */
++ if (htab->elf.sgot == NULL
++ && !loongarch_elf_create_got_section (htab->elf.dynobj, info))
++ return FALSE;
++ if (h)
++ {
++ if (h->got.refcount < 0)
++ h->got.refcount = 0;
++ h->got.refcount++;
++ }
++ else
++ elf_local_got_refcounts (abfd)[symndx]++;
++ break;
++ case GOT_TLS_LE:
++ /* No need for GOT. */
++ break;
++ default:
++ _bfd_error_handler (_("Internal error: unreachable."));
++ return FALSE;
++ }
++
++ char *new_tls_type = &_bfd_loongarch_elf_tls_type (abfd, h, symndx);
++ *new_tls_type |= tls_type;
++ if ((*new_tls_type & GOT_NORMAL) && (*new_tls_type & ~GOT_NORMAL))
++ {
++ _bfd_error_handler (_("%pB: `%s' accessed both as normal and "
++ "thread local symbol"),
++ abfd,
++ h ? h->root.root.string : "<local>");
++ return FALSE;
++ }
++
++ return TRUE;
++}
++
++/* Look through the relocs for a section during the first phase, and
++ allocate space in the global offset table or procedure linkage
++ table. */
++
++static bfd_boolean
++loongarch_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
++ asection *sec, const Elf_Internal_Rela *relocs)
++{
++ struct loongarch_elf_link_hash_table *htab;
++ Elf_Internal_Shdr *symtab_hdr;
++ struct elf_link_hash_entry **sym_hashes;
++ const Elf_Internal_Rela *rel;
++ asection *sreloc = NULL;
++
++ if (bfd_link_relocatable (info))
++ return TRUE;
++
++ htab = loongarch_elf_hash_table (info);
++ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
++ sym_hashes = elf_sym_hashes (abfd);
++
++ if (htab->elf.dynobj == NULL)
++ htab->elf.dynobj = abfd;
++
++ for (rel = relocs; rel < relocs + sec->reloc_count; rel++)
++ {
++ unsigned int r_type;
++ unsigned int r_symndx;
++ struct elf_link_hash_entry *h;
++ Elf_Internal_Sym *isym = NULL;
++
++ r_symndx = ELFNN_R_SYM (rel->r_info);
++ r_type = ELFNN_R_TYPE (rel->r_info);
++
++ if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
++ {
++ _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx);
++ return FALSE;
++ }
++
++ if (r_symndx < symtab_hdr->sh_info)
++ {
++ /* A local symbol. */
++ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd, r_symndx);
++ if (isym == NULL)
++ return FALSE;
++
++ if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
++ {
++ h = elfNN_loongarch_get_local_sym_hash (htab, abfd, rel, TRUE);
++ if (h == NULL)
++ return FALSE;
++
++ h->type = STT_GNU_IFUNC;
++ h->ref_regular = 1;
++ }
++ else
++ h = NULL;
++ }
++ else
++ {
++ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
++ while (h->root.type == bfd_link_hash_indirect
++ || h->root.type == bfd_link_hash_warning)
++ h = (struct elf_link_hash_entry *) h->root.u.i.link;
++ }
++
++ /* It is referenced by a non-shared object. */
++ if (h != NULL)
++ h->ref_regular = 1;
++
++ if (h && h->type == STT_GNU_IFUNC)
++ {
++ if (htab->elf.dynobj == NULL)
++ htab->elf.dynobj = abfd;
++
++ /* Create 'irelifunc' in PIC object. */
++ if (bfd_link_pic (info)
++ && !_bfd_elf_create_ifunc_sections (htab->elf.dynobj, info))
++ return FALSE;
++ /* If '.plt' not represent, create '.iplt' to deal with ifunc. */
++ else if (!htab->elf.splt
++ && !_bfd_elf_create_ifunc_sections (htab->elf.dynobj, info))
++ return FALSE;
++ /* Create the ifunc sections, iplt and ipltgot, for static
++ executables. */
++ if ((r_type == R_LARCH_64 || r_type == R_LARCH_32)
++ && !_bfd_elf_create_ifunc_sections (htab->elf.dynobj, info))
++ return FALSE;
++
++ if (h->plt.refcount < 0)
++ h->plt.refcount = 0;
++ h->plt.refcount++;
++ h->needs_plt = 1;
++
++ elf_tdata (info->output_bfd)->has_gnu_osabi |= elf_gnu_osabi_ifunc;
++ }
++
++ int need_dynreloc = 0;
++ int only_need_pcrel = 0;
++
++ switch (r_type)
++ {
++ case R_LARCH_GOT_PC_HI20:
++ case R_LARCH_GOT_HI20:
++ case R_LARCH_SOP_PUSH_GPREL:
++ /* For la.global. */
++ if (h)
++ h->pointer_equality_needed = 1;
++ if (!loongarch_elf_record_tls_and_got_reference (abfd, info, h,
++ r_symndx,
++ GOT_NORMAL))
++ return FALSE;
++ break;
++
++ case R_LARCH_TLS_LD_PC_HI20:
++ case R_LARCH_TLS_LD_HI20:
++ case R_LARCH_TLS_GD_PC_HI20:
++ case R_LARCH_TLS_GD_HI20:
++ case R_LARCH_SOP_PUSH_TLS_GD:
++ if (!loongarch_elf_record_tls_and_got_reference (abfd, info, h,
++ r_symndx,
++ GOT_TLS_GD))
++ return FALSE;
++ break;
++
++ case R_LARCH_TLS_IE_PC_HI20:
++ case R_LARCH_TLS_IE_HI20:
++ case R_LARCH_SOP_PUSH_TLS_GOT:
++ if (bfd_link_pic (info))
++ /* May fail for lazy-bind. */
++ info->flags |= DF_STATIC_TLS;
++
++ if (!loongarch_elf_record_tls_and_got_reference (abfd, info, h,
++ r_symndx,
++ GOT_TLS_IE))
++ return FALSE;
++ break;
++
++ case R_LARCH_TLS_LE_HI20:
++ case R_LARCH_SOP_PUSH_TLS_TPREL:
++ if (!bfd_link_executable (info))
++ return FALSE;
++
++ info->flags |= DF_STATIC_TLS;
++
++ if (!loongarch_elf_record_tls_and_got_reference (abfd, info, h,
++ r_symndx,
++ GOT_TLS_LE))
++ return FALSE;
++ break;
++
++ case R_LARCH_ABS_HI20:
++ case R_LARCH_SOP_PUSH_ABSOLUTE:
++ if (h != NULL)
++ /* If this reloc is in a read-only section, we might
++ need a copy reloc. We can't check reliably at this
++ stage whether the section is read-only, as input
++ sections have not yet been mapped to output sections.
++ Tentatively set the flag for now, and correct in
++ adjust_dynamic_symbol. */
++ h->non_got_ref = 1;
++ break;
++
++ case R_LARCH_PCALA_HI20:
++ if (h != NULL)
++ {
++ h->non_got_ref = 1;
++ h->pointer_equality_needed = 1;
++ }
++
++ break;
++
++ case R_LARCH_B21:
++ case R_LARCH_B16:
++ case R_LARCH_B26:
++ if (h != NULL)
++ {
++ h->needs_plt = 1;
++ if (!bfd_link_pic (info))
++ h->non_got_ref = 1;
++
++ /* We try to create PLT stub for all non-local function. */
++ if (h->plt.refcount < 0)
++ h->plt.refcount = 0;
++ h->plt.refcount++;
++ }
++
++ break;
++
++ case R_LARCH_SOP_PUSH_PCREL:
++ if (h != NULL)
++ {
++ if (!bfd_link_pic (info))
++ h->non_got_ref = 1;
++
++ /* We try to create PLT stub for all non-local function. */
++ if (h->plt.refcount < 0)
++ h->plt.refcount = 0;
++ h->plt.refcount++;
++ h->pointer_equality_needed = 1;
++ }
++
++ break;
++
++ case R_LARCH_SOP_PUSH_PLT_PCREL:
++ /* This symbol requires a procedure linkage table entry. We
++ actually build the entry in adjust_dynamic_symbol,
++ because this might be a case of linking PIC code without
++ linking in any dynamic objects, in which case we don't
++ need to generate a procedure linkage table after all. */
++ if (h != NULL)
++ {
++ h->needs_plt = 1;
++ if (h->plt.refcount < 0)
++ h->plt.refcount = 0;
++ h->plt.refcount++;
++ }
++ break;
++
++ case R_LARCH_TLS_DTPREL32:
++ case R_LARCH_TLS_DTPREL64:
++ need_dynreloc = 1;
++ only_need_pcrel = 1;
++ break;
++
++ case R_LARCH_JUMP_SLOT:
++ case R_LARCH_32:
++ case R_LARCH_64:
++
++ need_dynreloc = 1;
++
++ /* If resolved symbol is defined in this object,
++ 1. Under pie, the symbol is known. We convert it
++ into R_LARCH_RELATIVE and need load-addr still.
++ 2. Under pde, the symbol is known and we can discard R_LARCH_NN.
++ 3. Under dll, R_LARCH_NN can't be changed normally, since
++ its defination could be covered by the one in executable.
++ For symbolic, we convert it into R_LARCH_RELATIVE.
++ Thus, only under pde, it needs pcrel only. We discard it. */
++ only_need_pcrel = bfd_link_pde (info);
++
++ if (h != NULL
++ && (!bfd_link_pic (info)
++ || h->type == STT_GNU_IFUNC))
++ {
++ /* This reloc might not bind locally. */
++ h->non_got_ref = 1;
++ h->pointer_equality_needed = 1;
++
++ if (!h->def_regular
++ || (sec->flags & (SEC_CODE | SEC_READONLY)) != 0)
++ {
++ /* We may need a .plt entry if the symbol is a function
++ defined in a shared lib or is a function referenced
++ from the code or read-only section. */
++ h->plt.refcount += 1;
++ }
++ }
++ break;
++
++ case R_LARCH_GNU_VTINHERIT:
++ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
++ return FALSE;
++ break;
++
++ case R_LARCH_GNU_VTENTRY:
++ if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
++ return FALSE;
++ break;
++
++ default:
++ break;
++ }
++
++ /* Record some info for sizing and allocating dynamic entry. */
++ if (need_dynreloc && (sec->flags & SEC_ALLOC))
++ {
++ /* When creating a shared object, we must copy these
++ relocs into the output file. We create a reloc
++ section in dynobj and make room for the reloc. */
++ struct elf_dyn_relocs *p;
++ struct elf_dyn_relocs **head;
++
++ if (sreloc == NULL)
++ {
++ sreloc
++ = _bfd_elf_make_dynamic_reloc_section (sec, htab->elf.dynobj,
++ LARCH_ELF_LOG_WORD_BYTES,
++ abfd, /*rela?*/ TRUE);
++ if (sreloc == NULL)
++ return FALSE;
++ }
++
++ /* If this is a global symbol, we count the number of
++ relocations we need for this symbol. */
++ if (h != NULL)
++ head = &h->dyn_relocs;
++ else
++ {
++ /* Track dynamic relocs needed for local syms too.
++ We really need local syms available to do this
++ easily. Oh well. */
++
++ asection *s;
++ void *vpp;
++
++ s = bfd_section_from_elf_index (abfd, isym->st_shndx);
++ if (s == NULL)
++ s = sec;
++
++ vpp = &elf_section_data (s)->local_dynrel;
++ head = (struct elf_dyn_relocs **) vpp;
++ }
++
++ p = *head;
++ if (p == NULL || p->sec != sec)
++ {
++ bfd_size_type amt = sizeof *p;
++ p = (struct elf_dyn_relocs *) bfd_alloc (htab->elf.dynobj, amt);
++ if (p == NULL)
++ return FALSE;
++ p->next = *head;
++ *head = p;
++ p->sec = sec;
++ p->count = 0;
++ p->pc_count = 0;
++ }
++
++ p->count++;
++ p->pc_count += only_need_pcrel;
++ }
++ }
++
++ return TRUE;
++}
++
++/* Find dynamic relocs for H that apply to read-only sections. */
++
++static asection *
++readonly_dynrelocs (struct elf_link_hash_entry *h)
++{
++ struct elf_dyn_relocs *p;
++
++ for (p = h->dyn_relocs; p != NULL; p = p->next)
++ {
++ asection *s = p->sec->output_section;
++
++ if (s != NULL && (s->flags & SEC_READONLY) != 0)
++ return p->sec;
++ }
++ return NULL;
++}
++
++/* Adjust a symbol defined by a dynamic object and referenced by a
++ regular object. The current definition is in some section of the
++ dynamic object, but we're not including those sections. We have to
++ change the definition to something the rest of the link can
++ understand. */
++static bfd_boolean
++loongarch_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
++ struct elf_link_hash_entry *h)
++{
++ struct loongarch_elf_link_hash_table *htab;
++ bfd *dynobj;
++
++ htab = loongarch_elf_hash_table (info);
++ BFD_ASSERT (htab != NULL);
++
++ dynobj = htab->elf.dynobj;
++
++ /* Make sure we know what is going on here. */
++ BFD_ASSERT (dynobj != NULL
++ && (h->needs_plt || h->type == STT_GNU_IFUNC || h->is_weakalias
++ || (h->def_dynamic && h->ref_regular && !h->def_regular)));
++
++ /* If this is a function, put it in the procedure linkage table. We
++ will fill in the contents of the procedure linkage table later
++ (although we could actually do it here). */
++ if (h->type == STT_FUNC || h->type == STT_GNU_IFUNC || h->needs_plt)
++ {
++ if (h->plt.refcount < 0
++ || (h->type != STT_GNU_IFUNC
++ && (SYMBOL_REFERENCES_LOCAL (info, h)
++ || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
++ && h->root.type == bfd_link_hash_undefweak))))
++ {
++ /* This case can occur if we saw a R_LARCH_SOP_PUSH_PLT_PCREL reloc
++ in an input file, but the symbol was never referred to by a
++ dynamic object, or if all references were garbage collected.
++ In such a case, we don't actually need to build a PLT entry. */
++ h->plt.offset = MINUS_ONE;
++ h->needs_plt = 0;
++ }
++ else
++ h->needs_plt = 1;
++
++ return TRUE;
++ }
++ else
++ h->plt.offset = MINUS_ONE;
++
++ /* If this is a weak symbol, and there is a real definition, the
++ processor independent code will have arranged for us to see the
++ real definition first, and we can just use the same value. */
++ if (h->is_weakalias)
++ {
++ struct elf_link_hash_entry *def = weakdef (h);
++ BFD_ASSERT (def->root.type == bfd_link_hash_defined);
++ h->root.u.def.section = def->root.u.def.section;
++ h->root.u.def.value = def->root.u.def.value;
++ return TRUE;
++ }
++
++ /* R_LARCH_COPY is not adept glibc, not to generate. */
++ /* Can not print anything, because make check ld. */
++ return TRUE;
++}
++
++/* Allocate space in .plt, .got and associated reloc sections for
++ dynamic relocs. */
++
++static bfd_boolean
++allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
++{
++ struct bfd_link_info *info;
++ struct loongarch_elf_link_hash_table *htab;
++ struct elf_dyn_relocs *p;
++
++ if (h->root.type == bfd_link_hash_indirect)
++ return TRUE;
++
++ if (h->type == STT_GNU_IFUNC
++ && h->def_regular)
++ return TRUE;
++
++ info = (struct bfd_link_info *) inf;
++ htab = loongarch_elf_hash_table (info);
++ bfd_boolean dyn = htab->elf.dynamic_sections_created;
++ BFD_ASSERT (htab != NULL);
++
++ do
++ {
++ asection *plt, *gotplt, *relplt;
++
++ if (!h->needs_plt)
++ break;
++
++ h->needs_plt = 0;
++
++ if (htab->elf.splt)
++ {
++ if (h->dynindx == -1 && !h->forced_local && dyn
++ && h->root.type == bfd_link_hash_undefweak)
++ {
++ if (!bfd_elf_link_record_dynamic_symbol (info, h))
++ return FALSE;
++ }
++
++ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
++ && h->type != STT_GNU_IFUNC)
++ break;
++
++ plt = htab->elf.splt;
++ gotplt = htab->elf.sgotplt;
++ relplt = htab->elf.srelplt;
++ }
++ else if (htab->elf.iplt)
++ {
++ /* .iplt only for IFUNC. */
++ if (h->type != STT_GNU_IFUNC)
++ break;
++
++ plt = htab->elf.iplt;
++ gotplt = htab->elf.igotplt;
++ relplt = htab->elf.irelplt;
++ }
++ else
++ break;
++
++ if (plt->size == 0)
++ plt->size = PLT_HEADER_SIZE;
++
++ h->plt.offset = plt->size;
++ plt->size += PLT_ENTRY_SIZE;
++ gotplt->size += GOT_ENTRY_SIZE;
++ relplt->size += sizeof (ElfNN_External_Rela);
++
++ /* If this symbol is not defined in a regular file, and we are
++ not generating a shared library, then set the symbol to this
++ location in the .plt. This is required to make function
++ pointers compare as equal between the normal executable and
++ the shared library. */
++ if (!bfd_link_pic (info)
++ && !h->def_regular)
++ {
++ h->root.u.def.section = plt;
++ h->root.u.def.value = h->plt.offset;
++ }
++
++ h->needs_plt = 1;
++ }
++ while (0);
++
++ if (!h->needs_plt)
++ h->plt.offset = MINUS_ONE;
++
++ if (0 < h->got.refcount)
++ {
++ asection *s;
++ int tls_type = loongarch_elf_hash_entry (h)->tls_type;
++
++ /* Make sure this symbol is output as a dynamic symbol.
++ Undefined weak syms won't yet be marked as dynamic. */
++ if (h->dynindx == -1 && !h->forced_local && dyn
++ && h->root.type == bfd_link_hash_undefweak)
++ {
++ if (!bfd_elf_link_record_dynamic_symbol (info, h))
++ return FALSE;
++ }
++
++ s = htab->elf.sgot;
++ h->got.offset = s->size;
++ if (tls_type & (GOT_TLS_GD | GOT_TLS_IE))
++ {
++ /* TLS_GD needs two dynamic relocs and two GOT slots. */
++ if (tls_type & GOT_TLS_GD)
++ {
++ s->size += 2 * GOT_ENTRY_SIZE;
++ if (bfd_link_executable (info))
++ {
++ /* Link exe and not defined local. */
++ if (!SYMBOL_REFERENCES_LOCAL (info, h))
++ htab->elf.srelgot->size += 2 * sizeof (ElfNN_External_Rela);
++ }
++ else
++ {
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ htab->elf.srelgot->size += sizeof (ElfNN_External_Rela);
++ else
++ htab->elf.srelgot->size += 2 * sizeof (ElfNN_External_Rela);
++ }
++ }
++
++ /* TLS_IE needs one dynamic reloc and one GOT slot. */
++ if (tls_type & GOT_TLS_IE)
++ {
++ s->size += GOT_ENTRY_SIZE;
++
++ if (bfd_link_executable (info))
++ {
++ /* Link exe and not defined local. */
++ if (!SYMBOL_REFERENCES_LOCAL (info, h))
++ htab->elf.srelgot->size += sizeof (ElfNN_External_Rela);
++ }
++ else
++ {
++ htab->elf.srelgot->size += sizeof (ElfNN_External_Rela);
++ }
++ }
++ }
++ else
++ {
++ s->size += GOT_ENTRY_SIZE;
++ if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
++ || h->root.type != bfd_link_hash_undefweak)
++ && (bfd_link_pic (info)
++ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info),
++ h))
++ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
++ /* Undefined weak symbol in static PIE resolves to 0 without
++ any dynamic relocations. */
++ htab->elf.srelgot->size += sizeof (ElfNN_External_Rela);
++ }
++ }
++ else
++ h->got.offset = MINUS_ONE;
++
++ if (h->dyn_relocs == NULL)
++ return TRUE;
++
++ /* Extra dynamic relocate,
++ * R_LARCH_64
++ * R_LARCH_TLS_DTPRELNN
++ * R_LARCH_JUMP_SLOT
++ * R_LARCH_NN. */
++
++ if (SYMBOL_CALLS_LOCAL (info, h))
++ {
++ struct elf_dyn_relocs **pp;
++
++ for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
++ {
++ p->count -= p->pc_count;
++ p->pc_count = 0;
++ if (p->count == 0)
++ *pp = p->next;
++ else
++ pp = &p->next;
++ }
++ }
++
++ if (h->root.type == bfd_link_hash_undefweak)
++ {
++ if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
++ || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
++ || (!bfd_link_pic (info) && h->non_got_ref))
++ h->dyn_relocs = NULL;
++ else if (h->dynindx == -1 && !h->forced_local)
++ {
++ /* Make sure this symbol is output as a dynamic symbol.
++ Undefined weak syms won't yet be marked as dynamic. */
++ if (!bfd_elf_link_record_dynamic_symbol (info, h))
++ return FALSE;
++
++ if (h->dynindx == -1)
++ h->dyn_relocs = NULL;
++ }
++ }
++
++ for (p = h->dyn_relocs; p != NULL; p = p->next)
++ {
++ asection *sreloc = elf_section_data (p->sec)->sreloc;
++ sreloc->size += p->count * sizeof (ElfNN_External_Rela);
++ }
++
++ return TRUE;
++}
++
++/* A modified version of _bfd_elf_allocate_ifunc_dyn_relocs.
++ For local def and ref ifunc,
++ dynamic relocations are stored in
++ 1. rela.srelgot section in dynamic object (dll or exec).
++ 2. rela.irelplt section in static executable.
++ Unlike _bfd_elf_allocate_ifunc_dyn_relocs, rela.srelgot is used
++ instead of rela.srelplt. Glibc ELF loader will not support
++ R_LARCH_IRELATIVE relocation in rela.plt. */
++
++static bfd_boolean
++local_allocate_ifunc_dyn_relocs (struct bfd_link_info *info,
++ struct elf_link_hash_entry *h,
++ struct elf_dyn_relocs **head,
++ unsigned int plt_entry_size,
++ unsigned int plt_header_size,
++ unsigned int got_entry_size,
++ bfd_boolean avoid_plt)
++{
++ asection *plt, *gotplt, *relplt;
++ struct elf_dyn_relocs *p;
++ unsigned int sizeof_reloc;
++ const struct elf_backend_data *bed;
++ struct elf_link_hash_table *htab;
++ /* If AVOID_PLT is TRUE, don't use PLT if possible. */
++ bfd_boolean use_plt = !avoid_plt || h->plt.refcount > 0;
++ bfd_boolean need_dynreloc = !use_plt || bfd_link_pic (info);
++
++ /* When a PIC object references a STT_GNU_IFUNC symbol defined
++ in executable or it isn't referenced via PLT, the address of
++ the resolved function may be used. But in non-PIC executable,
++ the address of its plt slot may be used. Pointer equality may
++ not work correctly. PIE or non-PLT reference should be used if
++ pointer equality is required here.
++
++ If STT_GNU_IFUNC symbol is defined in position-dependent executable,
++ backend should change it to the normal function and set its address
++ to its PLT entry which should be resolved by R_*_IRELATIVE at
++ run-time. All external references should be resolved to its PLT in
++ executable. */
++ if (!need_dynreloc
++ && !(bfd_link_pde (info) && h->def_regular)
++ && (h->dynindx != -1
++ || info->export_dynamic)
++ && h->pointer_equality_needed)
++ {
++ info->callbacks->einfo
++ /* xgettext:c-format. */
++ (_("%F%P: dynamic STT_GNU_IFUNC symbol `%s' with pointer "
++ "equality in `%pB' can not be used when making an "
++ "executable; recompile with -fPIE and relink with -pie\n"),
++ h->root.root.string,
++ h->root.u.def.section->owner);
++ bfd_set_error (bfd_error_bad_value);
++ return FALSE;
++ }
++
++ htab = elf_hash_table (info);
++
++ /* When the symbol is marked with regular reference, if PLT isn't used
++ or we are building a PIC object, we must keep dynamic relocation
++ if there is non-GOT reference and use PLT if there is PC-relative
++ reference. */
++ if (need_dynreloc && h->ref_regular)
++ {
++ bfd_boolean keep = FALSE;
++ for (p = *head; p != NULL; p = p->next)
++ if (p->count)
++ {
++ h->non_got_ref = 1;
++ /* Need dynamic relocations for non-GOT reference. */
++ keep = TRUE;
++ if (p->pc_count)
++ {
++ /* Must use PLT for PC-relative reference. */
++ use_plt = TRUE;
++ need_dynreloc = bfd_link_pic (info);
++ break;
++ }
++ }
++ if (keep)
++ goto keep;
++ }
++
++ /* Support garbage collection against STT_GNU_IFUNC symbols. */
++ if (h->plt.refcount <= 0 && h->got.refcount <= 0)
++ {
++ h->got = htab->init_got_offset;
++ h->plt = htab->init_plt_offset;
++ *head = NULL;
++ return TRUE;
++ }
++
++ /* Return and discard space for dynamic relocations against it if
++ it is never referenced. */
++ if (!h->ref_regular)
++ {
++ if (h->plt.refcount > 0
++ || h->got.refcount > 0)
++ abort ();
++ h->got = htab->init_got_offset;
++ h->plt = htab->init_plt_offset;
++ *head = NULL;
++ return TRUE;
++ }
++
++ keep:
++ bed = get_elf_backend_data (info->output_bfd);
++ if (bed->rela_plts_and_copies_p)
++ sizeof_reloc = bed->s->sizeof_rela;
++ else
++ sizeof_reloc = bed->s->sizeof_rel;
++
++ /* When building a static executable, use iplt, igot.plt and
++ rela.iplt sections for STT_GNU_IFUNC symbols. */
++ if (htab->splt != NULL)
++ {
++ plt = htab->splt;
++ gotplt = htab->sgotplt;
++ /* Change dynamic info of ifunc gotplt from srelplt to srelgot. */
++ relplt = htab->srelgot;
++
++ /* If this is the first plt entry and PLT is used, make room for
++ the special first entry. */
++ if (plt->size == 0 && use_plt)
++ plt->size += plt_header_size;
++ }
++ else
++ {
++ plt = htab->iplt;
++ gotplt = htab->igotplt;
++ relplt = htab->irelplt;
++ }
++
++ if (use_plt)
++ {
++ /* Don't update value of STT_GNU_IFUNC symbol to PLT. We need
++ the original value for R_*_IRELATIVE. */
++ h->plt.offset = plt->size;
++
++ /* Make room for this entry in the plt/iplt section. */
++ plt->size += plt_entry_size;
++
++ /* We also need to make an entry in the got.plt/got.iplt section,
++ which will be placed in the got section by the linker script. */
++ gotplt->size += got_entry_size;
++ }
++
++ /* We also need to make an entry in the rela.plt/.rela.iplt
++ section for GOTPLT relocation if PLT is used. */
++ if (use_plt)
++ {
++ relplt->size += sizeof_reloc;
++ relplt->reloc_count++;
++ }
++
++ /* We need dynamic relocation for STT_GNU_IFUNC symbol only when
++ there is a non-GOT reference in a PIC object or PLT isn't used. */
++ if (!need_dynreloc || !h->non_got_ref)
++ *head = NULL;
++
++ /* Finally, allocate space. */
++ p = *head;
++ if (p != NULL)
++ {
++ bfd_size_type count = 0;
++ do
++ {
++ count += p->count;
++ p = p->next;
++ }
++ while (p != NULL);
++
++ htab->ifunc_resolvers = count != 0;
++
++ /* Dynamic relocations are stored in
++ 1. rela.srelgot section in PIC object.
++ 2. rela.srelgot section in dynamic executable.
++ 3. rela.irelplt section in static executable. */
++ if (htab->splt != NULL)
++ htab->srelgot->size += count * sizeof_reloc;
++ else
++ {
++ relplt->size += count * sizeof_reloc;
++ relplt->reloc_count += count;
++ }
++ }
++
++ /* For STT_GNU_IFUNC symbol, got.plt has the real function address
++ and got has the PLT entry adddress. We will load the GOT entry
++ with the PLT entry in finish_dynamic_symbol if it is used. For
++ branch, it uses got.plt. For symbol value, if PLT is used,
++ 1. Use got.plt in a PIC object if it is forced local or not
++ dynamic.
++ 2. Use got.plt in a non-PIC object if pointer equality isn't
++ needed.
++ 3. Use got.plt in PIE.
++ 4. Use got.plt if got isn't used.
++ 5. Otherwise use got so that it can be shared among different
++ objects at run-time.
++ If PLT isn't used, always use got for symbol value.
++ We only need to relocate got entry in PIC object or in dynamic
++ executable without PLT. */
++ if (use_plt
++ && (h->got.refcount <= 0
++ || (bfd_link_pic (info)
++ && (h->dynindx == -1
++ || h->forced_local))
++ || (
++ !h->pointer_equality_needed)
++ || htab->sgot == NULL))
++ {
++ /* Use got.plt. */
++ h->got.offset = (bfd_vma) -1;
++ }
++ else
++ {
++ if (!use_plt)
++ {
++ /* PLT isn't used. */
++ h->plt.offset = (bfd_vma) -1;
++ }
++ if (h->got.refcount <= 0)
++ {
++ /* GOT isn't need when there are only relocations for static
++ pointers. */
++ h->got.offset = (bfd_vma) -1;
++ }
++ else
++ {
++ h->got.offset = htab->sgot->size;
++ htab->sgot->size += got_entry_size;
++ /* Need to relocate the GOT entry in a PIC object or PLT isn't
++ used. Otherwise, the GOT entry will be filled with the PLT
++ entry and dynamic GOT relocation isn't needed. */
++ if (need_dynreloc)
++ {
++ /* For non-static executable, dynamic GOT relocation is in
++ rela.got section, but for static executable, it is
++ in rela.iplt section. */
++ if (htab->splt != NULL)
++ htab->srelgot->size += sizeof_reloc;
++ else
++ {
++ relplt->size += sizeof_reloc;
++ relplt->reloc_count++;
++ }
++ }
++ }
++ }
++
++ return TRUE;
++}
++
++/* Allocate space in .plt, .got and associated reloc sections for
++ ifunc dynamic relocs. */
++
++static bfd_boolean
++elfNN_allocate_ifunc_dynrelocs (struct elf_link_hash_entry *h, void *inf)
++{
++ struct bfd_link_info *info;
++ /* An example of a bfd_link_hash_indirect symbol is versioned
++ symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect)
++ -> __gxx_personality_v0(bfd_link_hash_defined)
++
++ There is no need to process bfd_link_hash_indirect symbols here
++ because we will also be presented with the concrete instance of
++ the symbol and loongarch_elf_copy_indirect_symbol () will have been
++ called to copy all relevant data from the generic to the concrete
++ symbol instance. */
++ if (h->root.type == bfd_link_hash_indirect)
++ return TRUE;
++
++ if (h->root.type == bfd_link_hash_warning)
++ h = (struct elf_link_hash_entry *) h->root.u.i.link;
++
++ info = (struct bfd_link_info *) inf;
++
++ /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
++ here if it is defined and referenced in a non-shared object. */
++ if (h->type == STT_GNU_IFUNC && h->def_regular)
++ {
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ return local_allocate_ifunc_dyn_relocs (info, h,
++ &h->dyn_relocs,
++ PLT_ENTRY_SIZE,
++ PLT_HEADER_SIZE,
++ GOT_ENTRY_SIZE,
++ FALSE);
++ else
++ return _bfd_elf_allocate_ifunc_dyn_relocs (info, h,
++ &h->dyn_relocs,
++ PLT_ENTRY_SIZE,
++ PLT_HEADER_SIZE,
++ GOT_ENTRY_SIZE,
++ FALSE);
++ }
++
++ return TRUE;
++}
++
++/* Allocate space in .plt, .got and associated reloc sections for
++ ifunc dynamic relocs. */
++
++static bfd_boolean
++elfNN_allocate_local_ifunc_dynrelocs (void **slot, void *inf)
++{
++ struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) *slot;
++
++ if (h->type != STT_GNU_IFUNC
++ || !h->def_regular
++ || !h->ref_regular
++ || !h->forced_local
++ || h->root.type != bfd_link_hash_defined)
++ abort ();
++
++ return elfNN_allocate_ifunc_dynrelocs (h, inf);
++}
++
++/* Set DF_TEXTREL if we find any dynamic relocs that apply to
++ read-only sections. */
++
++static bfd_boolean
++maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
++{
++ asection *sec;
++
++ if (h->root.type == bfd_link_hash_indirect)
++ return TRUE;
++
++ sec = readonly_dynrelocs (h);
++ if (sec != NULL)
++ {
++ struct bfd_link_info *info = (struct bfd_link_info *) info_p;
++
++ info->flags |= DF_TEXTREL;
++ info->callbacks->minfo (_("%pB: dynamic relocation against `%pT' in "
++ "read-only section `%pA'\n"),
++ sec->owner, h->root.root.string, sec);
++
++ /* Not an error, just cut short the traversal. */
++ return FALSE;
++ }
++ return TRUE;
++}
++
++static bfd_boolean
++loongarch_elf_size_dynamic_sections (bfd *output_bfd,
++ struct bfd_link_info *info)
++{
++ struct loongarch_elf_link_hash_table *htab;
++ bfd *dynobj;
++ asection *s;
++ bfd *ibfd;
++
++ htab = loongarch_elf_hash_table (info);
++ BFD_ASSERT (htab != NULL);
++ dynobj = htab->elf.dynobj;
++ BFD_ASSERT (dynobj != NULL);
++
++ if (htab->elf.dynamic_sections_created)
++ {
++ /* Set the contents of the .interp section to the interpreter. */
++ if (bfd_link_executable (info) && !info->nointerp)
++ {
++ const char *interpreter;
++ flagword flags = elf_elfheader (output_bfd)->e_flags;
++ s = bfd_get_linker_section (dynobj, ".interp");
++ BFD_ASSERT (s != NULL);
++ if (EF_LOONGARCH_IS_ILP32 (flags))
++ interpreter = "/lib32/ld.so.1";
++ else if (EF_LOONGARCH_IS_LP64 (flags))
++ interpreter = "/lib64/ld.so.1";
++ else
++ interpreter = "/lib/ld.so.1";
++ s->contents = (unsigned char *) interpreter;
++ s->size = strlen (interpreter) + 1;
++ }
++ }
++
++ /* Set up .got offsets for local syms, and space for local dynamic
++ relocs. */
++ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
++ {
++ bfd_signed_vma *local_got;
++ bfd_signed_vma *end_local_got;
++ char *local_tls_type;
++ bfd_size_type locsymcount;
++ Elf_Internal_Shdr *symtab_hdr;
++ asection *srel;
++
++ if (!is_loongarch_elf (ibfd))
++ continue;
++
++ for (s = ibfd->sections; s != NULL; s = s->next)
++ {
++ struct elf_dyn_relocs *p;
++
++ for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
++ {
++ p->count -= p->pc_count;
++ if (!bfd_is_abs_section (p->sec)
++ && bfd_is_abs_section (p->sec->output_section))
++ {
++ /* Input section has been discarded, either because
++ it is a copy of a linkonce section or due to
++ linker script /DISCARD/, so we'll be discarding
++ the relocs too. */
++ }
++ else if (0 < p->count)
++ {
++ srel = elf_section_data (p->sec)->sreloc;
++ srel->size += p->count * sizeof (ElfNN_External_Rela);
++ if ((p->sec->output_section->flags & SEC_READONLY) != 0)
++ info->flags |= DF_TEXTREL;
++ }
++ }
++ }
++
++ local_got = elf_local_got_refcounts (ibfd);
++ if (!local_got)
++ continue;
++
++ symtab_hdr = &elf_symtab_hdr (ibfd);
++ locsymcount = symtab_hdr->sh_info;
++ end_local_got = local_got + locsymcount;
++ local_tls_type = _bfd_loongarch_elf_local_got_tls_type (ibfd);
++ s = htab->elf.sgot;
++ srel = htab->elf.srelgot;
++ for (; local_got < end_local_got; ++local_got, ++local_tls_type)
++ {
++ if (0 < *local_got)
++ {
++ *local_got = s->size;
++
++ /* TLS gd use two got. */
++ if (*local_tls_type & GOT_TLS_GD)
++ s->size += GOT_ENTRY_SIZE * 2;
++ else
++ /* Normal got, tls ie/ld use one got. */
++ s->size += GOT_ENTRY_SIZE;
++
++ if (bfd_link_executable (info)
++ && (*local_tls_type & (GOT_TLS_GD| GOT_TLS_IE)))
++ ;/* Do nothing. */
++ else
++ {
++ srel->size += sizeof (ElfNN_External_Rela);
++ }
++ }
++ else
++ *local_got = MINUS_ONE;
++ }
++ }
++
++ /* Allocate global sym .plt and .got entries, and space for global
++ sym dynamic relocs. */
++ elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
++
++ /* Allocate global ifunc sym .plt and .got entries, and space for global
++ ifunc sym dynamic relocs. */
++ elf_link_hash_traverse (&htab->elf, elfNN_allocate_ifunc_dynrelocs, info);
++
++ /* Allocate .plt and .got entries, and space for local ifunc symbols. */
++ htab_traverse (htab->loc_hash_table,
++ (void *) elfNN_allocate_local_ifunc_dynrelocs, info);
++
++ /* Don't allocate .got.plt section if there are no PLT. */
++ if (htab->elf.sgotplt && htab->elf.sgotplt->size == GOTPLT_HEADER_SIZE
++ && (htab->elf.splt == NULL || htab->elf.splt->size == 0))
++ htab->elf.sgotplt->size = 0;
++
++ /* The check_relocs and adjust_dynamic_symbol entry points have
++ determined the sizes of the various dynamic sections. Allocate
++ memory for them. */
++ for (s = dynobj->sections; s != NULL; s = s->next)
++ {
++ if ((s->flags & SEC_LINKER_CREATED) == 0)
++ continue;
++
++ if (s == htab->elf.splt || s == htab->elf.iplt || s == htab->elf.sgot
++ || s == htab->elf.sgotplt || s == htab->elf.igotplt
++ || s == htab->elf.sdynbss || s == htab->elf.sdynrelro)
++ {
++ /* Strip this section if we don't need it; see the
++ comment below. */
++ }
++ else if (strncmp (s->name, ".rela", 5) == 0)
++ {
++ if (s->size != 0)
++ {
++ /* We use the reloc_count field as a counter if we need
++ to copy relocs into the output file. */
++ s->reloc_count = 0;
++ }
++ }
++ else
++ {
++ /* It's not one of our sections. */
++ continue;
++ }
++
++ if (s->size == 0)
++ {
++ /* If we don't need this section, strip it from the
++ output file. This is mostly to handle .rela.bss and
++ .rela.plt. We must create both sections in
++ create_dynamic_sections, because they must be created
++ before the linker maps input sections to output
++ sections. The linker does that before
++ adjust_dynamic_symbol is called, and it is that
++ function which decides whether anything needs to go
++ into these sections. */
++ s->flags |= SEC_EXCLUDE;
++ continue;
++ }
++
++ if ((s->flags & SEC_HAS_CONTENTS) == 0)
++ continue;
++
++ /* Allocate memory for the section contents. Zero the memory
++ for the benefit of .rela.plt, which has 4 unused entries
++ at the beginning, and we don't want garbage. */
++ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
++ if (s->contents == NULL)
++ return FALSE;
++ }
++
++ if (elf_hash_table (info)->dynamic_sections_created)
++ {
++ /* Add some entries to the .dynamic section. We fill in the
++ values later, in loongarch_elf_finish_dynamic_sections, but we
++ must add the entries now so that we get the correct size for
++ the .dynamic section. The DT_DEBUG entry is filled in by the
++ dynamic linker and used by the debugger. */
++#define add_dynamic_entry(TAG, VAL) _bfd_elf_add_dynamic_entry (info, TAG, VAL)
++
++ if (bfd_link_executable (info))
++ {
++ if (!add_dynamic_entry (DT_DEBUG, 0))
++ return FALSE;
++ }
++
++ if (htab->elf.srelplt->size != 0)
++ {
++ if (!add_dynamic_entry (DT_PLTGOT, 0)
++ || !add_dynamic_entry (DT_PLTRELSZ, 0)
++ || !add_dynamic_entry (DT_PLTREL, DT_RELA)
++ || !add_dynamic_entry (DT_JMPREL, 0))
++ return FALSE;
++ }
++
++ if (!add_dynamic_entry (DT_RELA, 0)
++ || !add_dynamic_entry (DT_RELASZ, 0)
++ || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
++ return FALSE;
++
++ /* If any dynamic relocs apply to a read-only section,
++ then we need a DT_TEXTREL entry. */
++ if ((info->flags & DF_TEXTREL) == 0)
++ elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
++
++ if (info->flags & DF_TEXTREL)
++ {
++ if (!add_dynamic_entry (DT_TEXTREL, 0))
++ return FALSE;
++ /* Clear the DF_TEXTREL flag. It will be set again if we
++ write out an actual text relocation; we may not, because
++ at this point we do not know whether e.g. any .eh_frame
++ absolute relocations have been converted to PC-relative. */
++ info->flags &= ~DF_TEXTREL;
++ }
++ }
++#undef add_dynamic_entry
++
++ return TRUE;
++}
++
++#define LARCH_LD_STACK_DEPTH 16
++static int64_t larch_opc_stack[LARCH_LD_STACK_DEPTH];
++static size_t larch_stack_top = 0;
++
++static bfd_reloc_status_type
++loongarch_push (int64_t val)
++{
++ if (LARCH_LD_STACK_DEPTH <= larch_stack_top)
++ return bfd_reloc_outofrange;
++ larch_opc_stack[larch_stack_top++] = val;
++ return bfd_reloc_ok;
++}
++
++static bfd_reloc_status_type
++loongarch_pop (int64_t *val)
++{
++ if (larch_stack_top == 0)
++ return bfd_reloc_outofrange;
++ BFD_ASSERT (val);
++ *val = larch_opc_stack[--larch_stack_top];
++ return bfd_reloc_ok;
++}
++
++static bfd_reloc_status_type
++loongarch_top (int64_t *val)
++{
++ if (larch_stack_top == 0)
++ return bfd_reloc_outofrange;
++ BFD_ASSERT (val);
++ *val = larch_opc_stack[larch_stack_top - 1];
++ return bfd_reloc_ok;
++}
++
++static void
++loongarch_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
++{
++ BFD_ASSERT (s && s->contents);
++ const struct elf_backend_data *bed;
++ bfd_byte *loc;
++
++ bed = get_elf_backend_data (abfd);
++ if (!(s->size > s->reloc_count * bed->s->sizeof_rela))
++ BFD_ASSERT (s->size > s->reloc_count * bed->s->sizeof_rela);
++ loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
++ bed->s->swap_reloca_out (abfd, rel, loc);
++}
++
++/* Check rel->r_offset in range of contents. */
++static bfd_reloc_status_type
++loongarch_check_offset (const Elf_Internal_Rela *rel,
++ const asection *input_section)
++{
++ if (0 == strcmp(input_section->name, ".text")
++ && rel->r_offset > input_section->size)
++ return bfd_reloc_overflow;
++
++ return bfd_reloc_ok;
++}
++
++#define LARCH_RELOC_PERFORM_3OP(op1, op2, op3) \
++ ({ \
++ bfd_reloc_status_type ret = loongarch_pop (&op2); \
++ if (ret == bfd_reloc_ok) \
++ { \
++ ret = loongarch_pop (&op1); \
++ if (ret == bfd_reloc_ok) \
++ ret = loongarch_push (op3); \
++ } \
++ ret; \
++ })
++
++static bfd_reloc_status_type
++loongarch_reloc_rewrite_imm_insn (const Elf_Internal_Rela *rel,
++ const asection *input_section ATTRIBUTE_UNUSED,
++ reloc_howto_type *howto, bfd *input_bfd,
++ bfd_byte *contents, bfd_vma reloc_val)
++{
++ int bits = bfd_get_reloc_size (howto) * 8;
++ uint32_t insn = bfd_get (bits, input_bfd, contents + rel->r_offset);
++
++ if (!loongarch_adjust_reloc_bitsfield(howto, &reloc_val))
++ return bfd_reloc_overflow;
++
++ insn = (insn & (uint32_t)howto->src_mask)
++ | ((insn & (~(uint32_t)howto->dst_mask)) | reloc_val);
++
++ bfd_put (bits, input_bfd, insn, contents + rel->r_offset);
++
++ return bfd_reloc_ok;
++}
++
++static bfd_reloc_status_type
++perform_relocation (const Elf_Internal_Rela *rel, asection *input_section,
++ reloc_howto_type *howto, bfd_vma value,
++ bfd *input_bfd, bfd_byte *contents)
++{
++ int64_t opr1, opr2, opr3;
++ bfd_reloc_status_type r = bfd_reloc_ok;
++ int bits = bfd_get_reloc_size (howto) * 8;
++
++ switch (ELFNN_R_TYPE (rel->r_info))
++ {
++ case R_LARCH_SOP_PUSH_PCREL:
++ case R_LARCH_SOP_PUSH_ABSOLUTE:
++ case R_LARCH_SOP_PUSH_GPREL:
++ case R_LARCH_SOP_PUSH_TLS_TPREL:
++ case R_LARCH_SOP_PUSH_TLS_GOT:
++ case R_LARCH_SOP_PUSH_TLS_GD:
++ case R_LARCH_SOP_PUSH_PLT_PCREL:
++ r = loongarch_push (value);
++ break;
++
++ case R_LARCH_SOP_PUSH_DUP:
++ r = loongarch_pop (&opr1);
++ if (r == bfd_reloc_ok)
++ {
++ r = loongarch_push (opr1);
++ if (r == bfd_reloc_ok)
++ r = loongarch_push (opr1);
++ }
++ break;
++
++ case R_LARCH_SOP_ASSERT:
++ r = loongarch_pop (&opr1);
++ if (r != bfd_reloc_ok || !opr1)
++ r = bfd_reloc_notsupported;
++ break;
++
++ case R_LARCH_SOP_NOT:
++ r = loongarch_pop (&opr1);
++ if (r == bfd_reloc_ok)
++ r = loongarch_push (!opr1);
++ break;
++
++ case R_LARCH_SOP_SUB:
++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 - opr2);
++ break;
++
++ case R_LARCH_SOP_SL:
++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 << opr2);
++ break;
++
++ case R_LARCH_SOP_SR:
++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 >> opr2);
++ break;
++
++ case R_LARCH_SOP_AND:
++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 & opr2);
++ break;
++
++ case R_LARCH_SOP_ADD:
++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 + opr2);
++ break;
++
++ case R_LARCH_SOP_IF_ELSE:
++ r = loongarch_pop (&opr3);
++ if (r == bfd_reloc_ok)
++ {
++ r = loongarch_pop (&opr2);
++ if (r == bfd_reloc_ok)
++ {
++ r = loongarch_pop (&opr1);
++ if (r == bfd_reloc_ok)
++ r = loongarch_push (opr1 ? opr2 : opr3);
++ }
++ }
++ break;
++
++ case R_LARCH_SOP_POP_32_S_10_5:
++ case R_LARCH_SOP_POP_32_S_10_12:
++ case R_LARCH_SOP_POP_32_S_10_16:
++ case R_LARCH_SOP_POP_32_S_10_16_S2:
++ case R_LARCH_SOP_POP_32_S_0_5_10_16_S2:
++ case R_LARCH_SOP_POP_32_S_0_10_10_16_S2:
++ case R_LARCH_SOP_POP_32_S_5_20:
++ case R_LARCH_SOP_POP_32_U_10_12:
++ case R_LARCH_SOP_POP_32_U:
++ r = loongarch_pop (&opr1);
++ if (r != bfd_reloc_ok)
++ break;
++ r = loongarch_check_offset (rel, input_section);
++ if (r != bfd_reloc_ok)
++ break;
++
++ r = loongarch_reloc_rewrite_imm_insn (rel, input_section,
++ howto, input_bfd,
++ contents, (bfd_vma)opr1);
++ break;
++
++ case R_LARCH_TLS_DTPREL32:
++ case R_LARCH_32:
++ case R_LARCH_TLS_DTPREL64:
++ case R_LARCH_64:
++ r = loongarch_check_offset (rel, input_section);
++ if (r != bfd_reloc_ok)
++ break;
++
++ bfd_put (bits, input_bfd, value, contents + rel->r_offset);
++ break;
++
++ case R_LARCH_ADD8:
++ case R_LARCH_ADD16:
++ case R_LARCH_ADD24:
++ case R_LARCH_ADD32:
++ case R_LARCH_ADD64:
++ r = loongarch_check_offset (rel, input_section);
++ if (r != bfd_reloc_ok)
++ break;
++
++ opr1 = bfd_get (bits, input_bfd, contents + rel->r_offset);
++ bfd_put (bits, input_bfd, opr1 + value, contents + rel->r_offset);
++ break;
++
++ case R_LARCH_SUB8:
++ case R_LARCH_SUB16:
++ case R_LARCH_SUB24:
++ case R_LARCH_SUB32:
++ case R_LARCH_SUB64:
++ r = loongarch_check_offset (rel, input_section);
++ if (r != bfd_reloc_ok)
++ break;
++
++ opr1 = bfd_get (bits, input_bfd, contents + rel->r_offset);
++ bfd_put (bits, input_bfd, opr1 - value, contents + rel->r_offset);
++ break;
++
++ /* For eh_frame and debug info. */
++ case R_LARCH_32_PCREL:
++ value -= sec_addr (input_section) + rel->r_offset;
++ value += rel->r_addend;
++ bfd_vma word = bfd_get (howto->bitsize, input_bfd,
++ contents + rel->r_offset);
++ word = (word & ~howto->dst_mask) | (value & howto->dst_mask);
++ bfd_put (howto->bitsize, input_bfd, word, contents + rel->r_offset);
++ r = bfd_reloc_ok;
++ break;
++
++ /* New reloc type.
++ R_LARCH_B16 ~ R_LARCH_TLS_GD_HI20. */
++ case R_LARCH_B16:
++ case R_LARCH_B21:
++ case R_LARCH_B26:
++ case R_LARCH_ABS_HI20:
++ case R_LARCH_ABS_LO12:
++ case R_LARCH_ABS64_LO20:
++ case R_LARCH_ABS64_HI12:
++ case R_LARCH_PCALA_HI20:
++ case R_LARCH_PCALA_LO12:
++ case R_LARCH_PCALA64_LO20:
++ case R_LARCH_PCALA64_HI12:
++ case R_LARCH_GOT_PC_HI20:
++ case R_LARCH_GOT_PC_LO12:
++ case R_LARCH_GOT64_PC_LO20:
++ case R_LARCH_GOT64_PC_HI12:
++ case R_LARCH_GOT_HI20:
++ case R_LARCH_GOT_LO12:
++ case R_LARCH_GOT64_LO20:
++ case R_LARCH_GOT64_HI12:
++ case R_LARCH_TLS_LE_HI20:
++ case R_LARCH_TLS_LE_LO12:
++ case R_LARCH_TLS_LE64_LO20:
++ case R_LARCH_TLS_LE64_HI12:
++ case R_LARCH_TLS_IE_PC_HI20:
++ case R_LARCH_TLS_IE_PC_LO12:
++ case R_LARCH_TLS_IE64_PC_LO20:
++ case R_LARCH_TLS_IE64_PC_HI12:
++ case R_LARCH_TLS_IE_HI20:
++ case R_LARCH_TLS_IE_LO12:
++ case R_LARCH_TLS_IE64_LO20:
++ case R_LARCH_TLS_IE64_HI12:
++ case R_LARCH_TLS_LD_PC_HI20:
++ case R_LARCH_TLS_LD_HI20:
++ case R_LARCH_TLS_GD_PC_HI20:
++ case R_LARCH_TLS_GD_HI20:
++ r = loongarch_check_offset (rel, input_section);
++ if (r != bfd_reloc_ok)
++ break;
++
++ r = loongarch_reloc_rewrite_imm_insn (rel, input_section,
++ howto, input_bfd,
++ contents, value);
++ break;
++
++ case R_LARCH_RELAX:
++ break;
++
++ default:
++ r = bfd_reloc_notsupported;
++ }
++ return r;
++}
++
++#define LARCH_RECENT_RELOC_QUEUE_LENGTH 72
++static struct
++{
++ bfd *bfd;
++ asection *section;
++ bfd_vma r_offset;
++ int r_type;
++ bfd_vma relocation;
++ Elf_Internal_Sym *sym;
++ struct elf_link_hash_entry *h;
++ bfd_vma addend;
++ int64_t top_then;
++} larch_reloc_queue[LARCH_RECENT_RELOC_QUEUE_LENGTH];
++static size_t larch_reloc_queue_head = 0;
++static size_t larch_reloc_queue_tail = 0;
++
++static const char *
++loongarch_sym_name (bfd *input_bfd, struct elf_link_hash_entry *h,
++ Elf_Internal_Sym *sym)
++{
++ const char *ret = NULL;
++ if (sym)
++ ret = bfd_elf_string_from_elf_section (input_bfd,
++ elf_symtab_hdr (input_bfd).sh_link,
++ sym->st_name);
++ else if (h)
++ ret = h->root.root.string;
++
++ if (ret == NULL || *ret == '\0')
++ ret = "<nameless>";
++ return ret;
++}
++
++static void
++loongarch_record_one_reloc (bfd *abfd, asection *section, int r_type,
++ bfd_vma r_offset, Elf_Internal_Sym *sym,
++ struct elf_link_hash_entry *h, bfd_vma addend)
++{
++ if ((larch_reloc_queue_head == 0
++ && larch_reloc_queue_tail == LARCH_RECENT_RELOC_QUEUE_LENGTH - 1)
++ || larch_reloc_queue_head == larch_reloc_queue_tail + 1)
++ larch_reloc_queue_head =
++ (larch_reloc_queue_head + 1) % LARCH_RECENT_RELOC_QUEUE_LENGTH;
++ larch_reloc_queue[larch_reloc_queue_tail].bfd = abfd;
++ larch_reloc_queue[larch_reloc_queue_tail].section = section;
++ larch_reloc_queue[larch_reloc_queue_tail].r_offset = r_offset;
++ larch_reloc_queue[larch_reloc_queue_tail].r_type = r_type;
++ larch_reloc_queue[larch_reloc_queue_tail].sym = sym;
++ larch_reloc_queue[larch_reloc_queue_tail].h = h;
++ larch_reloc_queue[larch_reloc_queue_tail].addend = addend;
++ loongarch_top (&larch_reloc_queue[larch_reloc_queue_tail].top_then);
++ larch_reloc_queue_tail =
++ (larch_reloc_queue_tail + 1) % LARCH_RECENT_RELOC_QUEUE_LENGTH;
++}
++
++static void
++loongarch_dump_reloc_record (void (*p) (const char *fmt, ...))
++{
++ size_t i = larch_reloc_queue_head;
++ bfd *a_bfd = NULL;
++ asection *section = NULL;
++ bfd_vma r_offset = 0;
++ int inited = 0;
++ p ("Dump relocate record:\n");
++ p ("stack top\t\trelocation name\t\tsymbol");
++ while (i != larch_reloc_queue_tail)
++ {
++ if (a_bfd != larch_reloc_queue[i].bfd
++ || section != larch_reloc_queue[i].section
++ || r_offset != larch_reloc_queue[i].r_offset)
++ {
++ a_bfd = larch_reloc_queue[i].bfd;
++ section = larch_reloc_queue[i].section;
++ r_offset = larch_reloc_queue[i].r_offset;
++ p ("\nat %pB(%pA+0x%v):\n", larch_reloc_queue[i].bfd,
++ larch_reloc_queue[i].section, larch_reloc_queue[i].r_offset);
++ }
++
++ if (!inited)
++ inited = 1, p ("...\n");
++
++ reloc_howto_type *howto =
++ loongarch_elf_rtype_to_howto (larch_reloc_queue[i].bfd,
++ larch_reloc_queue[i].r_type);
++ p ("0x%V %s\t`%s'", (bfd_vma) larch_reloc_queue[i].top_then,
++ howto ? howto->name : "<unknown reloc>",
++ loongarch_sym_name (larch_reloc_queue[i].bfd, larch_reloc_queue[i].h,
++ larch_reloc_queue[i].sym));
++
++ long addend = larch_reloc_queue[i].addend;
++ if (addend < 0)
++ p (" - %ld", -addend);
++ else if (0 < addend)
++ p (" + %ld(0x%v)", addend, larch_reloc_queue[i].addend);
++
++ p ("\n");
++ i = (i + 1) % LARCH_RECENT_RELOC_QUEUE_LENGTH;
++ }
++ p ("\n"
++ "-- Record dump end --\n\n");
++}
++
++static bfd_boolean
++loongarch_reloc_is_fatal (struct bfd_link_info *info,
++ bfd *input_bfd,
++ asection *input_section,
++ Elf_Internal_Rela *rel,
++ reloc_howto_type *howto,
++ bfd_reloc_status_type rtype,
++ bfd_boolean is_undefweak,
++ const char *name,
++ const char *msg)
++{
++ bfd_boolean fatal = TRUE;
++ switch (rtype)
++ {
++ /* 'dangerous' means we do it but can't promise it's ok
++ 'unsupport' means out of ability of relocation type
++ 'undefined' means we can't deal with the undefined symbol. */
++ case bfd_reloc_undefined:
++ info->callbacks->undefined_symbol (info, name, input_bfd, input_section,
++ rel->r_offset, TRUE);
++ info->callbacks->info ("%X%pB(%pA+0x%v): error: %s against %s`%s':\n%s\n",
++ input_bfd, input_section, rel->r_offset,
++ howto->name,
++ is_undefweak ? "[undefweak] " : "", name, msg);
++ break;
++ case bfd_reloc_dangerous:
++ info->callbacks->info ("%pB(%pA+0x%v): warning: %s against %s`%s':\n%s\n",
++ input_bfd, input_section, rel->r_offset,
++ howto->name,
++ is_undefweak ? "[undefweak] " : "", name, msg);
++ fatal = FALSE;
++ break;
++ case bfd_reloc_notsupported:
++ info->callbacks->info ("%X%pB(%pA+0x%v): error: %s against %s`%s':\n%s\n",
++ input_bfd, input_section, rel->r_offset,
++ howto->name,
++ is_undefweak ? "[undefweak] " : "", name, msg);
++ break;
++ default:
++ break;
++ }
++ return fatal;
++}
++
++#define RELOCATE_CALC_PC32_HI20(relocation, pc) \
++ ({ \
++ bfd_vma lo = (relocation) & ((bfd_vma)0xfff); \
++ pc = pc & (~(bfd_vma)0xfff); \
++ if (lo > 0x7ff) \
++ { \
++ relocation += 0x1000; \
++ } \
++ relocation &= ~(bfd_vma)0xfff; \
++ relocation -= pc; \
++ })
++
++#define RELOCATE_CALC_PC64_HI32(relocation, pc) \
++ ({ \
++ bfd_vma lo = (relocation) & ((bfd_vma)0xfff); \
++ if (lo > 0x7ff) \
++ { \
++ relocation -= 0x100000000; \
++ } \
++ relocation -= (pc & ~(bfd_vma)0xffffffff); \
++ })
++
++static int
++loongarch_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
++ bfd *input_bfd, asection *input_section,
++ bfd_byte *contents, Elf_Internal_Rela *relocs,
++ Elf_Internal_Sym *local_syms,
++ asection **local_sections)
++{
++ Elf_Internal_Rela *rel;
++ Elf_Internal_Rela *relend;
++ bfd_boolean fatal = FALSE;
++ asection *sreloc = elf_section_data (input_section)->sreloc;
++ struct loongarch_elf_link_hash_table *htab = loongarch_elf_hash_table (info);
++ Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_bfd);
++ struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
++ bfd_vma *local_got_offsets = elf_local_got_offsets (input_bfd);
++ bfd_boolean is_pic = bfd_link_pic (info);
++ bfd_boolean is_dyn = elf_hash_table (info)->dynamic_sections_created;
++ asection *plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
++ asection *got = htab->elf.sgot;
++
++ relend = relocs + input_section->reloc_count;
++ for (rel = relocs; rel < relend; rel++)
++ {
++ int r_type = ELFNN_R_TYPE (rel->r_info);
++ unsigned long r_symndx = ELFNN_R_SYM (rel->r_info);
++ bfd_vma pc = sec_addr (input_section) + rel->r_offset;
++ reloc_howto_type *howto = NULL;
++ asection *sec = NULL;
++ Elf_Internal_Sym *sym = NULL;
++ struct elf_link_hash_entry *h = NULL;
++ const char *name;
++ bfd_reloc_status_type r = bfd_reloc_ok;
++ bfd_boolean is_ie, is_undefweak, unresolved_reloc, defined_local;
++ bfd_boolean resolved_local, resolved_dynly, resolved_to_const;
++ char tls_type;
++ bfd_vma relocation, off, ie_off;
++ int i, j;
++
++ howto = loongarch_elf_rtype_to_howto (input_bfd, r_type);
++ if (howto == NULL || r_type == R_LARCH_GNU_VTINHERIT
++ || r_type == R_LARCH_GNU_VTENTRY)
++ continue;
++
++ /* This is a final link. */
++ if (r_symndx < symtab_hdr->sh_info)
++ {
++ is_undefweak = FALSE;
++ unresolved_reloc = FALSE;
++ sym = local_syms + r_symndx;
++ sec = local_sections[r_symndx];
++ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
++
++ /* Relocate against local STT_GNU_IFUNC symbol. */
++ if (!bfd_link_relocatable (info)
++ && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
++ {
++ h = elfNN_loongarch_get_local_sym_hash (htab, input_bfd, rel,
++ FALSE);
++ if (h == NULL)
++ abort ();
++
++ /* Set STT_GNU_IFUNC symbol value. */
++ h->root.u.def.value = sym->st_value;
++ h->root.u.def.section = sec;
++ }
++ defined_local = TRUE;
++ resolved_local = TRUE;
++ resolved_dynly = FALSE;
++ resolved_to_const = FALSE;
++
++ /* Calc in funtion elf_link_input_bfd,
++ * if #define elf_backend_rela_normal to 1. */
++ if (bfd_link_relocatable (info)
++ && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
++ continue;
++ }
++ else
++ {
++ bfd_boolean warned, ignored;
++
++ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
++ r_symndx, symtab_hdr, sym_hashes,
++ h, sec, relocation,
++ unresolved_reloc, warned, ignored);
++ /* Here means symbol isn't local symbol only and 'h != NULL'. */
++
++ /* The 'unresolved_syms_in_objects' specify how to deal with undefined
++ symbol. And 'dynamic_undefined_weak' specify what to do when
++ meeting undefweak. */
++
++ if ((is_undefweak = h->root.type == bfd_link_hash_undefweak))
++ {
++ defined_local = FALSE;
++ resolved_local = FALSE;
++ resolved_to_const = (!is_dyn || h->dynindx == -1
++ || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
++ resolved_dynly = !resolved_local && !resolved_to_const;
++ }
++ else if (warned)
++ {
++ /* Symbol undefined offen means failed already. I don't know why
++ 'warned' here but I guess it want to continue relocating as if
++ no error occures to find other errors as more as possible. */
++
++ /* To avoid generating warning messages about truncated
++ relocations, set the relocation's address to be the same as
++ the start of this section. */
++ relocation = (input_section->output_section
++ ? input_section->output_section->vma
++ : 0);
++
++ defined_local = relocation != 0;
++ resolved_local = defined_local;
++ resolved_to_const = !resolved_local;
++ resolved_dynly = FALSE;
++ }
++ else
++ {
++ defined_local = !unresolved_reloc && !ignored;
++ resolved_local =
++ defined_local && SYMBOL_REFERENCES_LOCAL (info, h);
++ resolved_dynly = !resolved_local;
++ resolved_to_const = !resolved_local && !resolved_dynly;
++ }
++ }
++
++ name = loongarch_sym_name (input_bfd, h, sym);
++
++ if (sec != NULL && discarded_section (sec))
++ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, rel,
++ 1, relend, howto, 0, contents);
++
++ if (bfd_link_relocatable (info))
++ continue;
++
++ /* The r_symndx will be STN_UNDEF (zero) only for relocs against symbols
++ from removed linkonce sections, or sections discarded by a linker
++ script. Also for R_*_SOP_PUSH_ABSOLUTE and PCREL to specify const. */
++ if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
++ {
++ defined_local = FALSE;
++ resolved_local = FALSE;
++ resolved_dynly = FALSE;
++ resolved_to_const = TRUE;
++ }
++
++ /* The ifunc reference generate plt. */
++ if (h && h->type == STT_GNU_IFUNC && h->plt.offset != MINUS_ONE)
++ {
++ defined_local = TRUE;
++ resolved_local = TRUE;
++ resolved_dynly = FALSE;
++ resolved_to_const = FALSE;
++ relocation = sec_addr (plt) + h->plt.offset;
++ }
++
++ unresolved_reloc = resolved_dynly;
++
++ BFD_ASSERT (resolved_local + resolved_dynly + resolved_to_const == 1);
++
++ /* BFD_ASSERT (!resolved_dynly || (h && h->dynindx != -1));. */
++
++ BFD_ASSERT (!resolved_local || defined_local);
++
++ is_ie = FALSE;
++ switch (r_type)
++ {
++ case R_LARCH_MARK_PCREL:
++ case R_LARCH_MARK_LA:
++ case R_LARCH_NONE:
++ r = bfd_reloc_continue;
++ unresolved_reloc = FALSE;
++ break;
++
++ case R_LARCH_32:
++ case R_LARCH_64:
++ if (resolved_dynly || (is_pic && resolved_local))
++ {
++ Elf_Internal_Rela outrel;
++
++ /* When generating a shared object, these relocations are copied
++ into the output file to be resolved at run time. */
++
++ outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
++ input_section,
++ rel->r_offset);
++
++ unresolved_reloc = (!((bfd_vma) -2 <= outrel.r_offset)
++ && (input_section->flags & SEC_ALLOC));
++
++ outrel.r_offset += sec_addr (input_section);
++
++ /* A pointer point to a ifunc symbol. */
++ if (h && h->type == STT_GNU_IFUNC)
++ {
++ if (h->dynindx == -1)
++ {
++ outrel.r_info = ELFNN_R_INFO (0, R_LARCH_IRELATIVE);
++ outrel.r_addend = (h->root.u.def.value
++ + h->root.u.def.section->output_section->vma
++ + h->root.u.def.section->output_offset);
++ }
++ else
++ {
++ outrel.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_NN);
++ outrel.r_addend = 0;
++ }
++
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++
++ if (htab->elf.splt != NULL)
++ sreloc = htab->elf.srelgot;
++ else
++ sreloc = htab->elf.irelplt;
++ }
++ else
++ {
++
++ if (bfd_link_pic (info))
++ sreloc = htab->elf.irelifunc;
++ else if (htab->elf.splt != NULL)
++ sreloc = htab->elf.srelgot;
++ else
++ sreloc = htab->elf.irelplt;
++ }
++ }
++ else if (resolved_dynly)
++ {
++ if (h->dynindx == -1)
++ {
++ if (h->root.type == bfd_link_hash_undefined)
++ (*info->callbacks->undefined_symbol)
++ (info, name, input_bfd, input_section,
++ rel->r_offset, TRUE);
++
++ outrel.r_info = ELFNN_R_INFO (0, r_type);
++ }
++ else
++ outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type);
++
++ outrel.r_addend = rel->r_addend;
++ }
++ else
++ {
++ outrel.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE);
++ outrel.r_addend = relocation + rel->r_addend;
++ }
++
++ /* No alloc space of func allocate_dynrelocs. */
++ if (unresolved_reloc
++ && !(h && (h->is_weakalias || !h->dyn_relocs)))
++ loongarch_elf_append_rela (output_bfd, sreloc, &outrel);
++ }
++
++ relocation += rel->r_addend;
++ break;
++
++ case R_LARCH_ADD8:
++ case R_LARCH_ADD16:
++ case R_LARCH_ADD24:
++ case R_LARCH_ADD32:
++ case R_LARCH_ADD64:
++ case R_LARCH_SUB8:
++ case R_LARCH_SUB16:
++ case R_LARCH_SUB24:
++ case R_LARCH_SUB32:
++ case R_LARCH_SUB64:
++ if (resolved_dynly)
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_undefined, is_undefweak, name,
++ "Can't be resolved dynamically. "
++ "If this procedure is hand-written assembly,\n"
++ "there must be something like '.dword sym1 - sym2' "
++ "to generate these relocs\n"
++ "and we can't get known link-time address of "
++ "these symbols."));
++ else
++ relocation += rel->r_addend;
++ break;
++
++ case R_LARCH_TLS_DTPREL32:
++ case R_LARCH_TLS_DTPREL64:
++ if (resolved_dynly)
++ {
++ Elf_Internal_Rela outrel;
++
++ outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
++ input_section,
++ rel->r_offset);
++ unresolved_reloc = (!((bfd_vma) -2 <= outrel.r_offset)
++ && (input_section->flags & SEC_ALLOC));
++ outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type);
++ outrel.r_offset += sec_addr (input_section);
++ outrel.r_addend = rel->r_addend;
++ if (unresolved_reloc)
++ loongarch_elf_append_rela (output_bfd, sreloc, &outrel);
++ break;
++ }
++
++ if (resolved_to_const)
++ fatal = loongarch_reloc_is_fatal (info, input_bfd, input_section,
++ rel, howto,
++ bfd_reloc_notsupported,
++ is_undefweak, name,
++ "Internal:");
++ if (resolved_local)
++ {
++ if (!elf_hash_table (info)->tls_sec)
++ {
++ fatal = loongarch_reloc_is_fatal (info, input_bfd,
++ input_section, rel, howto, bfd_reloc_notsupported,
++ is_undefweak, name, "TLS section not be created");
++ }
++ else
++ relocation -= elf_hash_table (info)->tls_sec->vma;
++ }
++ else
++ {
++ fatal = loongarch_reloc_is_fatal (info, input_bfd,
++ input_section, rel, howto, bfd_reloc_undefined,
++ is_undefweak, name,
++ "TLS LE just can be resolved local only.");
++ }
++
++ break;
++
++ case R_LARCH_SOP_PUSH_TLS_TPREL:
++ if (resolved_local)
++ {
++ if (!elf_hash_table (info)->tls_sec)
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "TLS section not be created"));
++ else
++ relocation -= elf_hash_table (info)->tls_sec->vma;
++ }
++ else
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_undefined, is_undefweak, name,
++ "TLS LE just can be resolved local only."));
++ break;
++
++ case R_LARCH_SOP_PUSH_ABSOLUTE:
++ if (is_undefweak)
++ {
++ if (resolved_dynly)
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_dangerous, is_undefweak, name,
++ "Someone require us to resolve undefweak "
++ "symbol dynamically. \n"
++ "But this reloc can't be done. "
++ "I think I can't throw error "
++ "for this\n"
++ "so I resolved it to 0. "
++ "I suggest to re-compile with '-fpic'."));
++
++ relocation = 0;
++ unresolved_reloc = FALSE;
++ break;
++ }
++
++ if (resolved_to_const)
++ {
++ relocation += rel->r_addend;
++ break;
++ }
++
++ if (is_pic)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "Under PIC we don't know load address. Re-compile "
++ "with '-fpic'?"));
++ break;
++ }
++
++ if (resolved_dynly)
++ {
++ if (!(plt && h && h->plt.offset != MINUS_ONE))
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_undefined, is_undefweak, name,
++ "Can't be resolved dynamically. Try to re-compile "
++ "with '-fpic'?"));
++ break;
++ }
++
++ if (rel->r_addend != 0)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "Shouldn't be with r_addend."));
++ break;
++ }
++
++ relocation = sec_addr (plt) + h->plt.offset;
++ unresolved_reloc = FALSE;
++ break;
++ }
++
++ if (resolved_local)
++ {
++ relocation += rel->r_addend;
++ break;
++ }
++
++ break;
++
++ case R_LARCH_SOP_PUSH_PCREL:
++ case R_LARCH_SOP_PUSH_PLT_PCREL:
++ unresolved_reloc = FALSE;
++
++ if (is_undefweak)
++ {
++ i = 0, j = 0;
++ relocation = 0;
++ if (resolved_dynly)
++ {
++ if (h && h->plt.offset != MINUS_ONE)
++ i = 1, j = 2;
++ else
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_dangerous, is_undefweak, name,
++ "Undefweak need to be resolved dynamically, "
++ "but PLT stub doesn't represent."));
++ }
++ }
++ else
++ {
++ if (!(defined_local || (h && h->plt.offset != MINUS_ONE)))
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_undefined, is_undefweak, name,
++ "PLT stub does not represent and "
++ "symbol not defined."));
++ break;
++ }
++
++ if (resolved_local)
++ i = 0, j = 2;
++ else /* if (resolved_dynly) */
++ {
++ if (!(h && h->plt.offset != MINUS_ONE))
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_dangerous, is_undefweak, name,
++ "Internal: PLT stub doesn't represent. "
++ "Resolve it with pcrel"));
++ i = 1, j = 3;
++ }
++ }
++
++ for (; i < j; i++)
++ {
++ if ((i & 1) == 0 && defined_local)
++ {
++ relocation -= pc;
++ relocation += rel->r_addend;
++ break;
++ }
++
++ if ((i & 1) && h && h->plt.offset != MINUS_ONE)
++ {
++ if (rel->r_addend != 0)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "PLT shouldn't be with r_addend."));
++ break;
++ }
++ relocation = sec_addr (plt) + h->plt.offset - pc;
++ break;
++ }
++ }
++ break;
++
++ case R_LARCH_SOP_PUSH_GPREL:
++ unresolved_reloc = FALSE;
++
++ if (rel->r_addend != 0)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "Shouldn't be with r_addend."));
++ break;
++ }
++
++ if (h != NULL)
++ {
++ off = h->got.offset & (~1);
++
++ if (h->got.offset == MINUS_ONE && h->type != STT_GNU_IFUNC)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "Internal: GOT entry doesn't represent."));
++ break;
++ }
++
++ /* Hidden symbol not has .got entry, only .got.plt entry
++ so gprel is (plt - got). */
++ if (h->got.offset == MINUS_ONE && h->type == STT_GNU_IFUNC)
++ {
++ if (h->plt.offset == (bfd_vma) -1)
++ {
++ abort();
++ }
++
++ bfd_vma plt_index = h->plt.offset / PLT_ENTRY_SIZE;
++ off = plt_index * GOT_ENTRY_SIZE;
++
++ if (htab->elf.splt != NULL)
++ {
++ /* Section .plt header is 2 times of plt entry. */
++ off = sec_addr (htab->elf.sgotplt) + off
++ - sec_addr (htab->elf.sgot);
++ }
++ else
++ {
++ /* Section iplt not has plt header. */
++ off = sec_addr (htab->elf.igotplt) + off
++ - sec_addr (htab->elf.sgot);
++ }
++ }
++
++ if ((h->got.offset & 1) == 0)
++ {
++ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (is_dyn,
++ bfd_link_pic (info), h)
++ && ((bfd_link_pic (info)
++ && SYMBOL_REFERENCES_LOCAL (info, h))))
++ {
++ /* This is actually a static link, or it is a
++ -Bsymbolic link and the symbol is defined
++ locally, or the symbol was forced to be local
++ because of a version file. We must initialize
++ this entry in the global offset table. Since the
++ offset must always be a multiple of the word size,
++ we use the least significant bit to record whether
++ we have initialized it already.
++
++ When doing a dynamic link, we create a rela.got
++ relocation entry to initialize the value. This
++ is done in the finish_dynamic_symbol routine. */
++
++ if (resolved_dynly)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_dangerous, is_undefweak, name,
++ "Internal: here shouldn't dynamic."));
++ }
++
++ if (!(defined_local || resolved_to_const))
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_undefined, is_undefweak, name,
++ "Internal: "));
++ break;
++ }
++
++ asection *s;
++ Elf_Internal_Rela outrel;
++ /* We need to generate a R_LARCH_RELATIVE reloc
++ for the dynamic linker. */
++ s = htab->elf.srelgot;
++ if (!s)
++ {
++ fatal = loongarch_reloc_is_fatal
++ (info, input_bfd,
++ input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "Internal: '.rel.got' not represent");
++ break;
++ }
++
++ outrel.r_offset = sec_addr (got) + off;
++ outrel.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE);
++ outrel.r_addend = relocation; /* Link-time addr. */
++ loongarch_elf_append_rela (output_bfd, s, &outrel);
++ }
++ bfd_put_NN (output_bfd, relocation, got->contents + off);
++ h->got.offset |= 1;
++ }
++ }
++ else
++ {
++ if (!local_got_offsets)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "Internal: local got offsets not reporesent."));
++ break;
++ }
++
++ off = local_got_offsets[r_symndx] & (~1);
++
++ if (local_got_offsets[r_symndx] == MINUS_ONE)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "Internal: GOT entry doesn't represent."));
++ break;
++ }
++
++ /* The offset must always be a multiple of the word size.
++ So, we can use the least significant bit to record
++ whether we have already processed this entry. */
++ if (local_got_offsets[r_symndx] == 0)
++ {
++ if (is_pic)
++ {
++ asection *s;
++ Elf_Internal_Rela outrel;
++ /* We need to generate a R_LARCH_RELATIVE reloc
++ for the dynamic linker. */
++ s = htab->elf.srelgot;
++ if (!s)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_notsupported, is_undefweak, name,
++ "Internal: '.rel.got' not represent"));
++ break;
++ }
++
++ outrel.r_offset = sec_addr (got) + off;
++ outrel.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE);
++ outrel.r_addend = relocation; /* Link-time addr. */
++ loongarch_elf_append_rela (output_bfd, s, &outrel);
++ }
++
++ bfd_put_NN (output_bfd, relocation, got->contents + off);
++ local_got_offsets[r_symndx] |= 1;
++ }
++ }
++ relocation = off;
++
++ break;
++
++ case R_LARCH_SOP_PUSH_TLS_GOT:
++ case R_LARCH_SOP_PUSH_TLS_GD:
++ {
++ unresolved_reloc = FALSE;
++ if (r_type == R_LARCH_SOP_PUSH_TLS_GOT)
++ is_ie = TRUE;
++
++ bfd_vma got_off = 0;
++ if (h != NULL)
++ {
++ got_off = h->got.offset;
++ h->got.offset |= 1;
++ }
++ else
++ {
++ got_off = local_got_offsets[r_symndx];
++ local_got_offsets[r_symndx] |= 1;
++ }
++
++ BFD_ASSERT (got_off != MINUS_ONE);
++
++ ie_off = 0;
++ tls_type = _bfd_loongarch_elf_tls_type (input_bfd, h, r_symndx);
++ if ((tls_type & GOT_TLS_GD) && (tls_type & GOT_TLS_IE))
++ ie_off = 2 * GOT_ENTRY_SIZE;
++
++ if ((got_off & 1) == 0)
++ {
++ Elf_Internal_Rela rela;
++ asection *srel = htab->elf.srelgot;
++ bfd_vma tls_block_off = 0;
++
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ BFD_ASSERT (elf_hash_table (info)->tls_sec);
++ tls_block_off = relocation
++ - elf_hash_table (info)->tls_sec->vma;
++ }
++
++ if (tls_type & GOT_TLS_GD)
++ {
++ rela.r_offset = sec_addr (got) + got_off;
++ rela.r_addend = 0;
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ /* Local sym, used in exec, set module id 1. */
++ if (bfd_link_executable (info))
++ bfd_put_NN (output_bfd, 1, got->contents + got_off);
++ else
++ {
++ rela.r_info = ELFNN_R_INFO (0,
++ R_LARCH_TLS_DTPMODNN);
++ loongarch_elf_append_rela (output_bfd, srel, &rela);
++ }
++
++ bfd_put_NN (output_bfd, tls_block_off,
++ got->contents + got_off + GOT_ENTRY_SIZE);
++ }
++ /* Dynamic resolved. */
++ else
++ {
++ /* Dynamic relocate module id. */
++ rela.r_info = ELFNN_R_INFO (h->dynindx,
++ R_LARCH_TLS_DTPMODNN);
++ loongarch_elf_append_rela (output_bfd, srel, &rela);
++
++ /* Dynamic relocate offset of block. */
++ rela.r_offset += GOT_ENTRY_SIZE;
++ rela.r_info = ELFNN_R_INFO (h->dynindx,
++ R_LARCH_TLS_DTPRELNN);
++ loongarch_elf_append_rela (output_bfd, srel, &rela);
++ }
++ }
++ if (tls_type & GOT_TLS_IE)
++ {
++ rela.r_offset = sec_addr (got) + got_off + ie_off;
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ /* Local sym, used in exec, set module id 1. */
++ if (!bfd_link_executable (info))
++ {
++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_TLS_TPRELNN);
++ rela.r_addend = tls_block_off;
++ loongarch_elf_append_rela (output_bfd, srel, &rela);
++ }
++
++ bfd_put_NN (output_bfd, tls_block_off,
++ got->contents + got_off + ie_off);
++ }
++ /* Dynamic resolved. */
++ else
++ {
++ /* Dynamic relocate offset of block. */
++ rela.r_info = ELFNN_R_INFO (h->dynindx,
++ R_LARCH_TLS_TPRELNN);
++ rela.r_addend = 0;
++ loongarch_elf_append_rela (output_bfd, srel, &rela);
++ }
++ }
++ }
++
++ relocation = (got_off & (~(bfd_vma)1)) + (is_ie ? ie_off : 0);
++ }
++ break;
++
++ /* New reloc types. */
++ case R_LARCH_B21:
++ case R_LARCH_B26:
++ case R_LARCH_B16:
++ unresolved_reloc = FALSE;
++ if (is_undefweak)
++ {
++ relocation = 0;
++ }
++
++ if (resolved_local)
++ {
++ relocation -= pc;
++ relocation += rel->r_addend;
++ }
++ else if (resolved_dynly)
++ {
++ BFD_ASSERT (h
++ && (h->plt.offset != MINUS_ONE
++ || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
++ && rel->r_addend == 0);
++ if (h && h->plt.offset == MINUS_ONE
++ && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
++ {
++ relocation -= pc;
++ relocation += rel->r_addend;
++ }
++ else
++ relocation = sec_addr (plt) + h->plt.offset - pc;
++ }
++
++ break;
++
++ case R_LARCH_ABS_HI20:
++ case R_LARCH_ABS_LO12:
++ case R_LARCH_ABS64_LO20:
++ case R_LARCH_ABS64_HI12:
++ BFD_ASSERT (!is_pic);
++
++ if (is_undefweak)
++ {
++ BFD_ASSERT (resolved_dynly);
++ relocation = 0;
++ break;
++ }
++ else if (resolved_to_const || resolved_local)
++ {
++ relocation += rel->r_addend;
++ }
++ else if (resolved_dynly)
++ {
++ unresolved_reloc = FALSE;
++ BFD_ASSERT ((plt && h && h->plt.offset != MINUS_ONE)
++ && rel->r_addend == 0);
++ relocation = sec_addr (plt) + h->plt.offset;
++ }
++
++ break;
++
++ case R_LARCH_PCALA_HI20:
++ unresolved_reloc = FALSE;
++ if (h && h->plt.offset != MINUS_ONE)
++ relocation = sec_addr (plt) + h->plt.offset;
++ else
++ relocation += rel->r_addend;
++
++ RELOCATE_CALC_PC32_HI20 (relocation, pc);
++
++ break;
++
++ case R_LARCH_PCALA_LO12:
++ /* Not support if sym_addr in 2k page edge.
++ pcalau12i pc_hi20 (sym_addr)
++ ld.w/d pc_lo12 (sym_addr)
++ ld.w/d pc_lo12 (sym_addr + x)
++ ...
++ can not calc correct address
++ if sym_addr < 0x800 && sym_addr + x >= 0x800. */
++
++ if (h && h->plt.offset != MINUS_ONE)
++ relocation = sec_addr (plt) + h->plt.offset;
++ else
++ relocation += rel->r_addend;
++
++ {
++ relocation &= 0xfff;
++ /* Signed extend. */
++ relocation = (relocation ^ 0x800) - 0x800;
++
++ /* For 2G jump, generate pcalau12i, jirl. */
++ /* If use jirl, turns to R_LARCH_B16. */
++ uint32_t insn = bfd_get (32, input_bfd, contents + rel->r_offset);
++ if ((insn & 0x4c000000) == 0x4c000000)
++ {
++ rel->r_info = ELFNN_R_INFO (r_symndx, R_LARCH_B16);
++ howto = loongarch_elf_rtype_to_howto (input_bfd, R_LARCH_B16);
++ }
++ }
++ break;
++
++ case R_LARCH_PCALA64_LO20:
++ case R_LARCH_PCALA64_HI12:
++ if (h && h->plt.offset != MINUS_ONE)
++ relocation = sec_addr (plt) + h->plt.offset;
++ else
++ relocation += rel->r_addend;
++
++ RELOCATE_CALC_PC64_HI32 (relocation, pc);
++
++ break;
++
++ case R_LARCH_GOT_PC_HI20:
++ case R_LARCH_GOT_HI20:
++ /* Calc got offset. */
++ {
++ unresolved_reloc = FALSE;
++ BFD_ASSERT (rel->r_addend == 0);
++
++ bfd_vma got_off = 0;
++ if (h != NULL)
++ {
++ /* GOT ref or ifunc. */
++ BFD_ASSERT (h->got.offset != MINUS_ONE
++ || h->type == STT_GNU_IFUNC);
++
++ got_off = h->got.offset & (~(bfd_vma)1);
++ /* Hidden symbol not has got entry,
++ * only got.plt entry so it is (plt - got). */
++ if (h->got.offset == MINUS_ONE && h->type == STT_GNU_IFUNC)
++ {
++ bfd_vma idx;
++ if (htab->elf.splt != NULL)
++ {
++ idx = (h->plt.offset - PLT_HEADER_SIZE)
++ / PLT_ENTRY_SIZE;
++ got_off = sec_addr (htab->elf.sgotplt)
++ + GOTPLT_HEADER_SIZE
++ + (idx * GOT_ENTRY_SIZE)
++ - sec_addr (htab->elf.sgot);
++ }
++ else
++ {
++ idx = h->plt.offset / PLT_ENTRY_SIZE;
++ got_off = sec_addr (htab->elf.sgotplt)
++ + (idx * GOT_ENTRY_SIZE)
++ - sec_addr (htab->elf.sgot);
++ }
++ }
++
++ if ((h->got.offset & 1) == 0)
++ {
++ /* We need to generate a R_LARCH_RELATIVE reloc once
++ * in loongarch_elf_finish_dynamic_symbol or now,
++ * call finish_dyn && nopic
++ * or !call finish_dyn && pic. */
++ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (is_dyn,
++ bfd_link_pic (info),
++ h)
++ && bfd_link_pic (info)
++ && SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ Elf_Internal_Rela rela;
++ rela.r_offset = sec_addr (got) + got_off;
++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE);
++ rela.r_addend = relocation;
++ loongarch_elf_append_rela (output_bfd,
++ htab->elf.srelgot, &rela);
++ }
++ h->got.offset |= 1;
++ }
++ }
++ else
++ {
++ BFD_ASSERT (local_got_offsets
++ && local_got_offsets[r_symndx] != MINUS_ONE);
++
++ got_off = local_got_offsets[r_symndx] & (~(bfd_vma)1);
++ if ((local_got_offsets[r_symndx] & 1) == 0)
++ {
++ if (bfd_link_pic (info))
++ {
++ Elf_Internal_Rela rela;
++ rela.r_offset = sec_addr (got) + got_off;
++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE);
++ rela.r_addend = relocation;
++ loongarch_elf_append_rela (output_bfd,
++ htab->elf.srelgot, &rela);
++ }
++ local_got_offsets[r_symndx] |= 1;
++ }
++ }
++
++ bfd_put_NN (output_bfd, relocation, got->contents + got_off);
++
++ relocation = got_off + sec_addr (got);
++ }
++
++ if (r_type == R_LARCH_GOT_PC_HI20)
++ RELOCATE_CALC_PC32_HI20 (relocation, pc);
++
++ break;
++
++ case R_LARCH_GOT_PC_LO12:
++ case R_LARCH_GOT64_PC_LO20:
++ case R_LARCH_GOT64_PC_HI12:
++ case R_LARCH_GOT_LO12:
++ case R_LARCH_GOT64_LO20:
++ case R_LARCH_GOT64_HI12:
++ {
++ unresolved_reloc = FALSE;
++ bfd_vma got_off;
++ if (h)
++ got_off = h->got.offset & (~(bfd_vma)1);
++ else
++ got_off = local_got_offsets[r_symndx] & (~(bfd_vma)1);
++
++ if (h && h->got.offset == MINUS_ONE && h->type == STT_GNU_IFUNC)
++ {
++ bfd_vma idx;
++ if (htab->elf.splt != NULL)
++ idx = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
++ else
++ idx = h->plt.offset / PLT_ENTRY_SIZE;
++
++ got_off = sec_addr (htab->elf.sgotplt)
++ + GOTPLT_HEADER_SIZE
++ + (idx * GOT_ENTRY_SIZE)
++ - sec_addr (htab->elf.sgot);
++ }
++ relocation = got_off + sec_addr (got);
++ }
++
++ if (r_type == R_LARCH_GOT_PC_LO12)
++ relocation &= (bfd_vma)0xfff;
++ else if (r_type == R_LARCH_GOT64_PC_LO20
++ || r_type == R_LARCH_GOT64_PC_HI12)
++ RELOCATE_CALC_PC64_HI32 (relocation, pc);
++
++ break;
++
++ case R_LARCH_TLS_LE_HI20:
++ case R_LARCH_TLS_LE_LO12:
++ case R_LARCH_TLS_LE64_LO20:
++ case R_LARCH_TLS_LE64_HI12:
++ BFD_ASSERT (resolved_local && elf_hash_table (info)->tls_sec);
++
++ relocation -= elf_hash_table (info)->tls_sec->vma;
++ break;
++
++ /* TLS IE LD/GD process separately is troublesome.
++ When a symbol is both ie and LD/GD, h->got.off |= 1
++ make only one type be relocated. We must use
++ h->got.offset |= 1 and h->got.offset |= 2
++ diff IE and LD/GD. And all (got_off & (~(bfd_vma)1))
++ (IE LD/GD and reusable GOT reloc) must change to
++ (got_off & (~(bfd_vma)3)), beause we use lowest 2 bits
++ as a tag.
++ Now, LD and GD is both GOT_TLS_GD type, LD seems to
++ can be omitted. */
++ case R_LARCH_TLS_IE_PC_HI20:
++ case R_LARCH_TLS_IE_HI20:
++ case R_LARCH_TLS_LD_PC_HI20:
++ case R_LARCH_TLS_LD_HI20:
++ case R_LARCH_TLS_GD_PC_HI20:
++ case R_LARCH_TLS_GD_HI20:
++ BFD_ASSERT (rel->r_addend == 0);
++ unresolved_reloc = FALSE;
++
++ if (r_type == R_LARCH_TLS_IE_PC_HI20
++ || r_type == R_LARCH_TLS_IE_HI20)
++ is_ie = TRUE;
++
++ bfd_vma got_off = 0;
++ if (h != NULL)
++ {
++ got_off = h->got.offset;
++ h->got.offset |= 1;
++ }
++ else
++ {
++ got_off = local_got_offsets[r_symndx];
++ local_got_offsets[r_symndx] |= 1;
++ }
++
++ BFD_ASSERT (got_off != MINUS_ONE);
++
++ ie_off = 0;
++ tls_type = _bfd_loongarch_elf_tls_type (input_bfd, h, r_symndx);
++ if ((tls_type & GOT_TLS_GD) && (tls_type & GOT_TLS_IE))
++ ie_off = 2 * GOT_ENTRY_SIZE;
++
++ if ((got_off & 1) == 0)
++ {
++ Elf_Internal_Rela rela;
++ asection *relgot = htab->elf.srelgot;
++ bfd_vma tls_block_off = 0;
++
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ BFD_ASSERT (elf_hash_table (info)->tls_sec);
++ tls_block_off = relocation
++ - elf_hash_table (info)->tls_sec->vma;
++ }
++
++ if (tls_type & GOT_TLS_GD)
++ {
++ rela.r_offset = sec_addr (got) + got_off;
++ rela.r_addend = 0;
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ /* Local sym, used in exec, set module id 1. */
++ if (bfd_link_executable (info))
++ bfd_put_NN (output_bfd, 1, got->contents + got_off);
++ else
++ {
++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_TLS_DTPMODNN);
++ loongarch_elf_append_rela (output_bfd, relgot, &rela);
++ }
++
++ bfd_put_NN (output_bfd, tls_block_off,
++ got->contents + got_off + GOT_ENTRY_SIZE);
++ }
++ /* Dynamic resolved. */
++ else
++ {
++ /* Dynamic relocate module id. */
++ rela.r_info = ELFNN_R_INFO (h->dynindx,
++ R_LARCH_TLS_DTPMODNN);
++ loongarch_elf_append_rela (output_bfd, relgot, &rela);
++
++ /* Dynamic relocate offset of block. */
++ rela.r_offset += GOT_ENTRY_SIZE;
++ rela.r_info = ELFNN_R_INFO (h->dynindx,
++ R_LARCH_TLS_DTPRELNN);
++ loongarch_elf_append_rela (output_bfd, relgot, &rela);
++ }
++ }
++ if (tls_type & GOT_TLS_IE)
++ {
++ rela.r_offset = sec_addr (got) + got_off + ie_off;
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ /* Local sym, used in exec, set module id 1. */
++ if (!bfd_link_executable (info))
++ {
++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_TLS_TPRELNN);
++ rela.r_addend = tls_block_off;
++ loongarch_elf_append_rela (output_bfd, relgot, &rela);
++ }
++
++ bfd_put_NN (output_bfd, tls_block_off,
++ got->contents + got_off + ie_off);
++ }
++ /* Dynamic resolved. */
++ else
++ {
++ /* Dynamic relocate offset of block. */
++ rela.r_info = ELFNN_R_INFO (h->dynindx,
++ R_LARCH_TLS_TPRELNN);
++ rela.r_addend = 0;
++ loongarch_elf_append_rela (output_bfd, relgot, &rela);
++ }
++ }
++ }
++ relocation = (got_off & (~(bfd_vma)1)) + sec_addr (got)
++ + (is_ie ? ie_off : 0);
++
++ if (r_type == R_LARCH_TLS_LD_PC_HI20
++ || r_type == R_LARCH_TLS_GD_PC_HI20
++ || r_type == R_LARCH_TLS_IE_PC_HI20)
++ RELOCATE_CALC_PC32_HI20 (relocation, pc);
++
++ break;
++
++ case R_LARCH_TLS_IE_PC_LO12:
++ case R_LARCH_TLS_IE64_PC_LO20:
++ case R_LARCH_TLS_IE64_PC_HI12:
++ case R_LARCH_TLS_IE_LO12:
++ case R_LARCH_TLS_IE64_LO20:
++ case R_LARCH_TLS_IE64_HI12:
++ unresolved_reloc = FALSE;
++
++ if (h)
++ relocation = sec_addr (got) + (h->got.offset & (~(bfd_vma)3));
++ else
++ relocation = sec_addr (got)
++ + (local_got_offsets[r_symndx] & (~(bfd_vma)3));
++
++ tls_type = _bfd_loongarch_elf_tls_type (input_bfd, h, r_symndx);
++ /* Use both TLS_GD and TLS_IE. */
++ if ((tls_type & GOT_TLS_GD) && (tls_type & GOT_TLS_IE))
++ relocation += 2 * GOT_ENTRY_SIZE;
++
++ if (r_type == R_LARCH_TLS_IE_PC_LO12)
++ relocation &= (bfd_vma)0xfff;
++ else if (r_type == R_LARCH_TLS_IE64_PC_LO20
++ || r_type == R_LARCH_TLS_IE64_PC_HI12)
++ RELOCATE_CALC_PC64_HI32 (relocation, pc);
++
++ break;
++
++ case R_LARCH_RELAX:
++ break;
++
++ default:
++ break;
++ }
++
++ if (fatal)
++ break;
++
++ do
++ {
++ /* 'unresolved_reloc' means we haven't done it yet.
++ We need help of dynamic linker to fix this memory location up. */
++ if (!unresolved_reloc)
++ break;
++
++ if (_bfd_elf_section_offset (output_bfd, info, input_section,
++ rel->r_offset) == MINUS_ONE)
++ /* WHY? May because it's invalid so skip checking.
++ But why dynamic reloc a invalid section? */
++ break;
++
++ if (input_section->output_section->flags & SEC_DEBUGGING)
++ {
++ fatal = (loongarch_reloc_is_fatal
++ (info, input_bfd, input_section, rel, howto,
++ bfd_reloc_dangerous, is_undefweak, name,
++ "Seems dynamic linker not process "
++ "sections 'SEC_DEBUGGING'."));
++ }
++ if (!is_dyn)
++ break;
++
++ if ((info->flags & DF_TEXTREL) == 0)
++ if (input_section->output_section->flags & SEC_READONLY)
++ info->flags |= DF_TEXTREL;
++ }
++ while (0);
++
++ if (fatal)
++ break;
++
++ loongarch_record_one_reloc (input_bfd, input_section, r_type,
++ rel->r_offset, sym, h, rel->r_addend);
++
++ if (r != bfd_reloc_continue)
++ r = perform_relocation (rel, input_section, howto, relocation,
++ input_bfd, contents);
++
++ switch (r)
++ {
++ case bfd_reloc_dangerous:
++ case bfd_reloc_continue:
++ case bfd_reloc_ok:
++ continue;
++
++ case bfd_reloc_overflow:
++ /* Overflow value can't be filled in. */
++ loongarch_dump_reloc_record (info->callbacks->info);
++ info->callbacks->reloc_overflow
++ (info, h ? &h->root : NULL, name, howto->name, rel->r_addend,
++ input_bfd, input_section, rel->r_offset);
++ break;
++
++ case bfd_reloc_outofrange:
++ /* Stack state incorrect. */
++ loongarch_dump_reloc_record (info->callbacks->info);
++ info->callbacks->info
++ ("%X%H: Internal stack state is incorrect.\n"
++ "Want to push to full stack or pop from empty stack?\n",
++ input_bfd, input_section, rel->r_offset);
++ break;
++
++ case bfd_reloc_notsupported:
++ info->callbacks->info ("%X%H: Unknown relocation type.\n", input_bfd,
++ input_section, rel->r_offset);
++ break;
++
++ default:
++ info->callbacks->info ("%X%H: Internal: unknown error.\n", input_bfd,
++ input_section, rel->r_offset);
++ break;
++ }
++
++ fatal = TRUE;
++ }
++
++ return !fatal;
++}
++
++/* Finish up dynamic symbol handling. We set the contents of various
++ dynamic sections here. */
++
++static bfd_boolean
++loongarch_elf_finish_dynamic_symbol (bfd *output_bfd,
++ struct bfd_link_info *info,
++ struct elf_link_hash_entry *h,
++ Elf_Internal_Sym *sym)
++{
++ struct loongarch_elf_link_hash_table *htab = loongarch_elf_hash_table (info);
++ const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
++
++ if (h->plt.offset != MINUS_ONE)
++ {
++ size_t i, plt_idx;
++ asection *plt, *gotplt, *relplt;
++ bfd_vma got_address;
++ uint32_t plt_entry[PLT_ENTRY_INSNS];
++ bfd_byte *loc;
++ Elf_Internal_Rela rela;
++
++ if (htab->elf.splt)
++ {
++ BFD_ASSERT ((h->type == STT_GNU_IFUNC
++ && SYMBOL_REFERENCES_LOCAL (info, h))
++ || h->dynindx != -1);
++
++ plt = htab->elf.splt;
++ gotplt = htab->elf.sgotplt;
++ if (h->type == STT_GNU_IFUNC && SYMBOL_REFERENCES_LOCAL (info, h))
++ relplt = htab->elf.srelgot;
++ else
++ relplt = htab->elf.srelplt;
++ plt_idx = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
++ got_address =
++ sec_addr (gotplt) + GOTPLT_HEADER_SIZE + plt_idx * GOT_ENTRY_SIZE;
++ }
++ else /* if (htab->elf.iplt) */
++ {
++ BFD_ASSERT (h->type == STT_GNU_IFUNC
++ && SYMBOL_REFERENCES_LOCAL (info, h));
++
++ plt = htab->elf.iplt;
++ gotplt = htab->elf.igotplt;
++ relplt = htab->elf.irelplt;
++ plt_idx = h->plt.offset / PLT_ENTRY_SIZE;
++ got_address = sec_addr (gotplt) + plt_idx * GOT_ENTRY_SIZE;
++ }
++
++ /* Find out where the .plt entry should go. */
++ loc = plt->contents + h->plt.offset;
++
++ /* Fill in the PLT entry itself. */
++ if (!loongarch_make_plt_entry (got_address,
++ sec_addr (plt) + h->plt.offset,
++ plt_entry))
++ return FALSE;
++
++ for (i = 0; i < PLT_ENTRY_INSNS; i++)
++ bfd_put_32 (output_bfd, plt_entry[i], loc + 4 * i);
++
++ /* Fill in the initial value of the got.plt entry. */
++ loc = gotplt->contents + (got_address - sec_addr (gotplt));
++ bfd_put_NN (output_bfd, sec_addr (plt), loc);
++
++ rela.r_offset = got_address;
++
++ /* TRUE if this is a PLT reference to a local IFUNC. */
++ if (PLT_LOCAL_IFUNC_P (info, h)
++ && (relplt == htab->elf.srelgot
++ || relplt == htab->elf.irelplt))
++ {
++ {
++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_IRELATIVE);
++ rela.r_addend = (h->root.u.def.value
++ + h->root.u.def.section->output_section->vma
++ + h->root.u.def.section->output_offset);
++ }
++
++ /* Find the space after dyn sort. */
++ {
++ Elf_Internal_Rela *dyn = (Elf_Internal_Rela *)relplt->contents;
++ bfd_boolean fill = FALSE;
++ for (;dyn < dyn + relplt->size / sizeof (*dyn); dyn++)
++ {
++ if (0 == dyn->r_offset)
++ {
++ bed->s->swap_reloca_out (output_bfd, &rela,
++ (bfd_byte *)dyn);
++ relplt->reloc_count++;
++ fill = TRUE;
++ break;
++ }
++ }
++ BFD_ASSERT (fill);
++ }
++
++ }
++ else
++ {
++ /* Fill in the entry in the rela.plt section. */
++ rela.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_JUMP_SLOT);
++ rela.r_addend = 0;
++ loc = relplt->contents + plt_idx * sizeof (ElfNN_External_Rela);
++ bed->s->swap_reloca_out (output_bfd, &rela, loc);
++ }
++
++ if (!h->def_regular)
++ {
++ /* Mark the symbol as undefined, rather than as defined in
++ the .plt section. Leave the value alone. */
++ sym->st_shndx = SHN_UNDEF;
++ /* If the symbol is weak, we do need to clear the value.
++ Otherwise, the PLT entry would provide a definition for
++ the symbol even if the symbol wasn't defined anywhere,
++ and so the symbol would never be NULL. */
++ if (!h->ref_regular_nonweak)
++ sym->st_value = 0;
++ }
++ }
++
++ if (h->got.offset != MINUS_ONE
++ /* TLS got entry have been handled in elf_relocate_section. */
++ && !(loongarch_elf_hash_entry (h)->tls_type & (GOT_TLS_GD | GOT_TLS_IE))
++ /* Have allocated got entry but not allocated rela before. */
++ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
++ {
++ asection *sgot, *srela;
++ Elf_Internal_Rela rela;
++ bfd_vma off = h->got.offset & ~(bfd_vma)1;
++
++ /* This symbol has an entry in the GOT. Set it up. */
++ sgot = htab->elf.sgot;
++ srela = htab->elf.srelgot;
++ BFD_ASSERT (sgot && srela);
++
++ rela.r_offset = sec_addr (sgot) + off;
++
++ if (h->def_regular
++ && h->type == STT_GNU_IFUNC)
++ {
++ if(h->plt.offset == MINUS_ONE)
++ {
++ if (htab->elf.splt == NULL)
++ srela = htab->elf.irelplt;
++
++ if (SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ asection *sec = h->root.u.def.section;
++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_IRELATIVE);
++ rela.r_addend = h->root.u.def.value + sec->output_section->vma
++ + sec->output_offset;
++ bfd_put_NN (output_bfd, 0, sgot->contents + off);
++ }
++ else
++ {
++ BFD_ASSERT (h->dynindx != -1);
++ rela.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_NN);
++ rela.r_addend = 0;
++ bfd_put_NN (output_bfd, (bfd_vma) 0, sgot->contents + off);
++ }
++ }
++ else if(bfd_link_pic (info))
++ {
++ rela.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_NN);
++ rela.r_addend = 0;
++ bfd_put_NN (output_bfd, rela.r_addend, sgot->contents + off);
++ }
++ else
++ {
++ asection *plt;
++ /* For non-shared object, we can't use .got.plt, which
++ contains the real function address if we need pointer
++ equality. We load the GOT entry with the PLT entry. */
++ plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
++ bfd_put_NN (output_bfd,
++ (plt->output_section->vma
++ + plt->output_offset
++ + h->plt.offset),
++ sgot->contents + off);
++ return TRUE;
++ }
++ }
++ else if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
++ {
++ asection *sec = h->root.u.def.section;
++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE);
++ rela.r_addend = (h->root.u.def.value + sec->output_section->vma
++ + sec->output_offset);
++ }
++ else
++ {
++ BFD_ASSERT (h->dynindx != -1);
++ rela.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_NN);
++ rela.r_addend = 0;
++ }
++
++ loongarch_elf_append_rela (output_bfd, srela, &rela);
++ }
++
++ /* Mark some specially defined symbols as absolute. */
++ if (h == htab->elf.hdynamic || h == htab->elf.hgot || h == htab->elf.hplt)
++ sym->st_shndx = SHN_ABS;
++
++ return TRUE;
++}
++
++/* Finish up the dynamic sections. */
++
++static bfd_boolean
++loongarch_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, bfd *dynobj,
++ asection *sdyn)
++{
++ struct loongarch_elf_link_hash_table *htab = loongarch_elf_hash_table (info);
++ const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
++ size_t dynsize = bed->s->sizeof_dyn, skipped_size = 0;
++ bfd_byte *dyncon, *dynconend;
++
++ dynconend = sdyn->contents + sdyn->size;
++ for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
++ {
++ Elf_Internal_Dyn dyn;
++ asection *s;
++ int skipped = 0;
++
++ bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
++
++ switch (dyn.d_tag)
++ {
++ case DT_PLTGOT:
++ s = htab->elf.sgotplt;
++ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
++ break;
++ case DT_JMPREL:
++ s = htab->elf.srelplt;
++ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
++ break;
++ case DT_PLTRELSZ:
++ s = htab->elf.srelplt;
++ dyn.d_un.d_val = s->size;
++ break;
++ case DT_TEXTREL:
++ if ((info->flags & DF_TEXTREL) == 0)
++ skipped = 1;
++ break;
++ case DT_FLAGS:
++ if ((info->flags & DF_TEXTREL) == 0)
++ dyn.d_un.d_val &= ~DF_TEXTREL;
++ break;
++ }
++ if (skipped)
++ skipped_size += dynsize;
++ else
++ bed->s->swap_dyn_out (output_bfd, &dyn, dyncon - skipped_size);
++ }
++ /* Wipe out any trailing entries if we shifted down a dynamic tag. */
++ memset (dyncon - skipped_size, 0, skipped_size);
++ return TRUE;
++}
++
++/* Finish up local dynamic symbol handling. We set the contents of
++ various dynamic sections here. */
++
++static bfd_boolean
++elfNN_loongarch_finish_local_dynamic_symbol (void **slot, void *inf)
++{
++ struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) *slot;
++ struct bfd_link_info *info = (struct bfd_link_info *) inf;
++
++ return loongarch_elf_finish_dynamic_symbol (info->output_bfd, info, h, NULL);
++}
++
++static bfd_boolean
++loongarch_elf_finish_dynamic_sections (bfd *output_bfd,
++ struct bfd_link_info *info)
++{
++ bfd *dynobj;
++ asection *sdyn, *plt, *gotplt = NULL;
++ struct loongarch_elf_link_hash_table *htab;
++
++ htab = loongarch_elf_hash_table (info);
++ BFD_ASSERT (htab);
++ dynobj = htab->elf.dynobj;
++ sdyn = bfd_get_linker_section (dynobj, ".dynamic");
++
++ if (elf_hash_table (info)->dynamic_sections_created)
++ {
++ BFD_ASSERT (htab->elf.splt && sdyn);
++
++ if (!loongarch_finish_dyn (output_bfd, info, dynobj, sdyn))
++ return FALSE;
++ }
++
++ plt = htab->elf.splt;
++ gotplt = htab->elf.sgotplt;
++
++ if (plt && 0 < plt->size)
++ {
++ size_t i;
++ uint32_t plt_header[PLT_HEADER_INSNS];
++ if (!loongarch_make_plt_header (sec_addr (gotplt), sec_addr (plt),
++ plt_header))
++ return FALSE;
++
++ for (i = 0; i < PLT_HEADER_INSNS; i++)
++ bfd_put_32 (output_bfd, plt_header[i], plt->contents + 4 * i);
++
++ elf_section_data (plt->output_section)->this_hdr.sh_entsize =
++ PLT_ENTRY_SIZE;
++ }
++
++ if (htab->elf.sgotplt)
++ {
++ asection *output_section = htab->elf.sgotplt->output_section;
++
++ if (bfd_is_abs_section (output_section))
++ {
++ _bfd_error_handler (_("discarded output section: `%pA'"),
++ htab->elf.sgotplt);
++ return FALSE;
++ }
++
++ if (0 < htab->elf.sgotplt->size)
++ {
++ /* Write the first two entries in .got.plt, needed for the dynamic
++ linker. */
++ bfd_put_NN (output_bfd, MINUS_ONE, htab->elf.sgotplt->contents);
++
++ bfd_put_NN (output_bfd, (bfd_vma) 0,
++ htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
++ }
++
++ elf_section_data (output_section)->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
++ }
++
++ if (htab->elf.sgot)
++ {
++ asection *output_section = htab->elf.sgot->output_section;
++
++ if (0 < htab->elf.sgot->size)
++ {
++ /* Set the first entry in the global offset table to the address of
++ the dynamic section. */
++ bfd_vma val = sdyn ? sec_addr (sdyn) : 0;
++ bfd_put_NN (output_bfd, val, htab->elf.sgot->contents);
++ }
++
++ elf_section_data (output_section)->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
++ }
++
++ /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
++ htab_traverse (htab->loc_hash_table,
++ (void *) elfNN_loongarch_finish_local_dynamic_symbol, info);
++
++ return TRUE;
++}
++
++/* Return address for Ith PLT stub in section PLT, for relocation REL
++ or (bfd_vma) -1 if it should not be included. */
++
++static bfd_vma
++loongarch_elf_plt_sym_val (bfd_vma i, const asection *plt,
++ const arelent *rel ATTRIBUTE_UNUSED)
++{
++ return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
++}
++
++static enum elf_reloc_type_class
++loongarch_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
++ const asection *rel_sec ATTRIBUTE_UNUSED,
++ const Elf_Internal_Rela *rela)
++{
++ struct loongarch_elf_link_hash_table *htab;
++ htab = loongarch_elf_hash_table (info);
++
++ if (htab->elf.dynsym != NULL && htab->elf.dynsym->contents != NULL)
++ {
++ /* Check relocation against STT_GNU_IFUNC symbol if there are
++ dynamic symbols. */
++ bfd *abfd = info->output_bfd;
++ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
++ unsigned long r_symndx = ELFNN_R_SYM (rela->r_info);
++ if (r_symndx != STN_UNDEF)
++ {
++ Elf_Internal_Sym sym;
++ if (!bed->s->swap_symbol_in (abfd,
++ htab->elf.dynsym->contents
++ + r_symndx * bed->s->sizeof_sym,
++ 0, &sym))
++ {
++ /* xgettext:c-format */
++ _bfd_error_handler (_("%pB symbol number %lu references"
++ " nonexistent SHT_SYMTAB_SHNDX section"),
++ abfd, r_symndx);
++ /* Ideally an error class should be returned here. */
++ }
++ else if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC)
++ return reloc_class_ifunc;
++ }
++ }
++
++ switch (ELFNN_R_TYPE (rela->r_info))
++ {
++ case R_LARCH_IRELATIVE:
++ return reloc_class_ifunc;
++ case R_LARCH_RELATIVE:
++ return reloc_class_relative;
++ case R_LARCH_JUMP_SLOT:
++ return reloc_class_plt;
++ case R_LARCH_COPY:
++ return reloc_class_copy;
++ default:
++ return reloc_class_normal;
++ }
++}
++
++/* Copy the extra info we tack onto an elf_link_hash_entry. */
++
++static void
++loongarch_elf_copy_indirect_symbol (struct bfd_link_info *info,
++ struct elf_link_hash_entry *dir,
++ struct elf_link_hash_entry *ind)
++{
++ struct elf_link_hash_entry *edir, *eind;
++
++ edir = dir;
++ eind = ind;
++
++ if (eind->dyn_relocs != NULL)
++ {
++ if (edir->dyn_relocs != NULL)
++ {
++ struct elf_dyn_relocs **pp;
++ struct elf_dyn_relocs *p;
++
++ /* Add reloc counts against the indirect sym to the direct sym
++ list. Merge any entries against the same section. */
++ for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
++ {
++ struct elf_dyn_relocs *q;
++
++ for (q = edir->dyn_relocs; q != NULL; q = q->next)
++ if (q->sec == p->sec)
++ {
++ q->pc_count += p->pc_count;
++ q->count += p->count;
++ *pp = p->next;
++ break;
++ }
++ if (q == NULL)
++ pp = &p->next;
++ }
++ *pp = edir->dyn_relocs;
++ }
++
++ edir->dyn_relocs = eind->dyn_relocs;
++ eind->dyn_relocs = NULL;
++ }
++
++ if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount < 0)
++ {
++ loongarch_elf_hash_entry(edir)->tls_type
++ = loongarch_elf_hash_entry(eind)->tls_type;
++ loongarch_elf_hash_entry(eind)->tls_type = GOT_UNKNOWN;
++ }
++ _bfd_elf_link_hash_copy_indirect (info, dir, ind);
++}
++
++#define PRSTATUS_SIZE 0x1d8
++#define PRSTATUS_OFFSET_PR_CURSIG 0xc
++#define PRSTATUS_OFFSET_PR_PID 0x20
++#define ELF_GREGSET_T_SIZE 0x168
++#define PRSTATUS_OFFSET_PR_REG 0x70
++
++/* Support for core dump NOTE sections. */
++
++static bfd_boolean
++loongarch_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
++{
++ switch (note->descsz)
++ {
++ default:
++ return FALSE;
++
++ /* The sizeof (struct elf_prstatus) on Linux/LoongArch. */
++ case PRSTATUS_SIZE:
++ /* pr_cursig */
++ elf_tdata (abfd)->core->signal =
++ bfd_get_16 (abfd, note->descdata + PRSTATUS_OFFSET_PR_CURSIG);
++
++ /* pr_pid */
++ elf_tdata (abfd)->core->lwpid =
++ bfd_get_32 (abfd, note->descdata + PRSTATUS_OFFSET_PR_PID);
++ break;
++ }
++
++ /* Make a ".reg/999" section. */
++ return _bfd_elfcore_make_pseudosection (abfd, ".reg", ELF_GREGSET_T_SIZE,
++ note->descpos
++ + PRSTATUS_OFFSET_PR_REG);
++}
++
++#define PRPSINFO_SIZE 0x88
++#define PRPSINFO_OFFSET_PR_PID 0x18
++#define PRPSINFO_OFFSET_PR_FNAME 0x28
++#define PRPSINFO_SIZEOF_PR_FNAME 0x10
++#define PRPSINFO_OFFSET_PR_PS_ARGS 0x38
++#define PRPSINFO_SIZEOF_PR_PS_ARGS 0x50
++
++static bfd_boolean
++loongarch_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
++{
++ switch (note->descsz)
++ {
++ default:
++ return FALSE;
++
++ /* The sizeof (prpsinfo_t) on Linux/LoongArch. */
++ case PRPSINFO_SIZE:
++ /* pr_pid */
++ elf_tdata (abfd)->core->pid =
++ bfd_get_32 (abfd, note->descdata + PRPSINFO_OFFSET_PR_PID);
++
++ /* pr_fname */
++ elf_tdata (abfd)->core->program =
++ _bfd_elfcore_strndup (abfd, note->descdata + PRPSINFO_OFFSET_PR_FNAME,
++ PRPSINFO_SIZEOF_PR_FNAME);
++
++ /* pr_psargs */
++ elf_tdata (abfd)->core->command =
++ _bfd_elfcore_strndup (abfd, note->descdata + PRPSINFO_OFFSET_PR_PS_ARGS,
++ PRPSINFO_SIZEOF_PR_PS_ARGS);
++ break;
++ }
++
++ /* Note that for some reason, a spurious space is tacked
++ onto the end of the args in some (at least one anyway)
++ implementations, so strip it off if it exists. */
++
++ {
++ char *command = elf_tdata (abfd)->core->command;
++ int n = strlen (command);
++
++ if (0 < n && command[n - 1] == ' ')
++ command[n - 1] = '\0';
++ }
++
++ return TRUE;
++}
++
++/* Set the right mach type. */
++static bfd_boolean
++loongarch_elf_object_p (bfd *abfd)
++{
++ /* There are only two mach types in LoongArch currently. */
++ if (strcmp (abfd->xvec->name, "elf64-loongarch") == 0)
++ bfd_default_set_arch_mach (abfd, bfd_arch_loongarch, bfd_mach_loongarch64);
++ else
++ bfd_default_set_arch_mach (abfd, bfd_arch_loongarch, bfd_mach_loongarch32);
++ return TRUE;
++}
++
++static asection *
++loongarch_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info,
++ Elf_Internal_Rela *rel,
++ struct elf_link_hash_entry *h,
++ Elf_Internal_Sym *sym)
++{
++ if (h != NULL)
++ switch (ELFNN_R_TYPE (rel->r_info))
++ {
++ case R_LARCH_GNU_VTINHERIT:
++ case R_LARCH_GNU_VTENTRY:
++ return NULL;
++ }
++
++ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
++}
++
++/* Return TRUE if symbol H should be hashed in the `.gnu.hash' section. For
++ executable PLT slots where the executable never takes the address of those
++ functions, the function symbols are not added to the hash table. */
++
++static bfd_boolean
++elf_loongarch64_hash_symbol (struct elf_link_hash_entry *h)
++{
++ if (h->plt.offset != (bfd_vma) -1
++ && !h->def_regular
++ && !h->pointer_equality_needed)
++ return FALSE;
++
++ return _bfd_elf_hash_symbol (h);
++}
++
++#define TARGET_LITTLE_SYM loongarch_elfNN_vec
++#define TARGET_LITTLE_NAME "elfNN-loongarch"
++#define ELF_ARCH bfd_arch_loongarch
++#define ELF_TARGET_ID LARCH_ELF_DATA
++#define ELF_MACHINE_CODE EM_LOONGARCH
++#define ELF_MAXPAGESIZE 0x4000
++#define bfd_elfNN_bfd_reloc_type_lookup loongarch_reloc_type_lookup
++#define bfd_elfNN_bfd_link_hash_table_create \
++ loongarch_elf_link_hash_table_create
++#define bfd_elfNN_bfd_reloc_name_lookup loongarch_reloc_name_lookup
++#define elf_info_to_howto_rel NULL /* Fall through to elf_info_to_howto. */
++#define elf_info_to_howto loongarch_info_to_howto_rela
++#define bfd_elfNN_bfd_merge_private_bfd_data \
++ elfNN_loongarch_merge_private_bfd_data
++
++#define elf_backend_reloc_type_class loongarch_reloc_type_class
++#define elf_backend_copy_indirect_symbol loongarch_elf_copy_indirect_symbol
++#define elf_backend_create_dynamic_sections \
++ loongarch_elf_create_dynamic_sections
++#define elf_backend_check_relocs loongarch_elf_check_relocs
++#define elf_backend_adjust_dynamic_symbol loongarch_elf_adjust_dynamic_symbol
++#define elf_backend_size_dynamic_sections loongarch_elf_size_dynamic_sections
++#define elf_backend_relocate_section loongarch_elf_relocate_section
++#define elf_backend_finish_dynamic_symbol loongarch_elf_finish_dynamic_symbol
++#define elf_backend_finish_dynamic_sections \
++ loongarch_elf_finish_dynamic_sections
++#define elf_backend_object_p loongarch_elf_object_p
++#define elf_backend_gc_mark_hook loongarch_elf_gc_mark_hook
++#define elf_backend_plt_sym_val loongarch_elf_plt_sym_val
++#define elf_backend_grok_prstatus loongarch_elf_grok_prstatus
++#define elf_backend_grok_psinfo loongarch_elf_grok_psinfo
++#define elf_backend_hash_symbol elf_loongarch64_hash_symbol
++
++#include "elfNN-target.h"
+diff --git gdb-10.2/bfd/elfxx-loongarch.c gdb-10.2/bfd/elfxx-loongarch.c
+new file mode 100644
+index 0000000..9f54b00
+--- /dev/null
++++ gdb-10.2/bfd/elfxx-loongarch.c
+@@ -0,0 +1,1618 @@
++/* LoongArch-specific support for ELF.
++ Copyright (C) 2021-2022 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Based on LoongArch target.
++
++ This file is part of BFD, the Binary File Descriptor library.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++
++#include "sysdep.h"
++#include "bfd.h"
++#include "libbfd.h"
++#include "elf-bfd.h"
++#include "elf/loongarch.h"
++#include "elfxx-loongarch.h"
++
++#define ALL_ONES (~ (bfd_vma) 0)
++
++typedef struct loongarch_reloc_howto_type_struct
++{
++ /* The first must be reloc_howto_type! */
++ reloc_howto_type howto;
++ bfd_reloc_code_real_type bfd_type;
++ bfd_boolean (*adjust_reloc_bits)(reloc_howto_type *, bfd_vma *);
++ const char *larch_reloc_type_name;
++} loongarch_reloc_howto_type;
++
++#define LOONGARCH_DEFAULT_HOWTO(r_name) \
++ { HOWTO (R_LARCH_##r_name, 0, 2, 32, FALSE, 0, complain_overflow_signed, \
++ bfd_elf_generic_reloc, "R_LARCH_" #r_name, FALSE, 0, ALL_ONES, \
++ FALSE), BFD_RELOC_LARCH_##r_name, NULL, NULL }
++
++#define LOONGARCH_HOWTO(type, right, size, bits, pcrel, left, ovf, func, \
++ name, inplace, src_mask, dst_mask, pcrel_off, btype, afunc,lname) \
++ { HOWTO(type, right, size, bits, pcrel, left, ovf, func, name, \
++ inplace, src_mask, dst_mask, pcrel_off), btype, afunc, lname }
++
++#define LOONGARCH_EMPTY_HOWTO(C) \
++ { EMPTY_HOWTO (C), BFD_RELOC_NONE, NULL, NULL }
++
++static bfd_boolean
++reloc_bits (reloc_howto_type *howto, bfd_vma *val);
++static bfd_boolean
++reloc_bits_b16 (reloc_howto_type *howto, bfd_vma *fix_val);
++static bfd_boolean
++reloc_bits_b21 (reloc_howto_type *howto, bfd_vma *fix_val);
++static bfd_boolean
++reloc_bits_b26 (reloc_howto_type *howto, bfd_vma *val);
++
++/* This does not include any relocation information, but should be
++ good enough for GDB or objdump to read the file. */
++static loongarch_reloc_howto_type loongarch_howto_table[] =
++{
++ /* No relocation. */
++ LOONGARCH_HOWTO (R_LARCH_NONE, /* type (0). */
++ 0, /* rightshift */
++ 3, /* size */
++ 0, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_NONE", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ 0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_NONE, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ /* 32 bit relocation. */
++ LOONGARCH_HOWTO (R_LARCH_32, /* type (1). */
++ 0, /* rightshift */
++ 2, /* size */
++ 32, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_32", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_32, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ /* 64 bit relocation. */
++ LOONGARCH_HOWTO (R_LARCH_64, /* type (2). */
++ 0, /* rightshift */
++ 4, /* size */
++ 64, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_64", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_64, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_RELATIVE, /* type (3). */
++ 0, /* rightshift */
++ 2, /* size */
++ 32, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_RELATIVE", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_NONE, /* undefined? */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_COPY, /* type (4). */
++ 0, /* rightshift */
++ 3, /* this one is variable size */
++ 0, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_bitfield, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_COPY", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ 0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_NONE, /* undefined? */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_JUMP_SLOT, /* type (5). */
++ 0, /* rightshift */
++ 4, /* size */
++ 64, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_bitfield, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_JUMP_SLOT", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ 0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_NONE, /* undefined? */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ /* Dynamic TLS relocations. */
++ LOONGARCH_HOWTO (R_LARCH_TLS_DTPMOD32, /* type (6). */
++ 0, /* rightshift */
++ 2, /* size */
++ 32, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_TLS_DTPMOD32", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_DTPMOD32, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_DTPMOD64, /* type (7). */
++ 0, /* rightshift */
++ 4, /* size */
++ 64, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_TLS_DTPMOD64", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_DTPMOD64, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_DTPREL32, /* type (8). */
++ 0, /* rightshift */
++ 2, /* size */
++ 32, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_TLS_DTPREL32", /* name */
++ TRUE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_DTPREL32, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_DTPREL64, /* type (9). */
++ 0, /* rightshift */
++ 4, /* size */
++ 64, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_TLS_DTPREL64", /* name */
++ TRUE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_DTPREL64, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_TPREL32, /* type (10). */
++ 0, /* rightshift */
++ 2, /* size */
++ 32, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_TLS_TPREL32", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_TPREL32, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_TPREL64, /* type (11). */
++ 0, /* rightshift */
++ 4, /* size */
++ 64, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_TLS_TPREL64", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_TPREL64, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_IRELATIVE, /* type (12). */
++ 0, /* rightshift */
++ 2, /* size */
++ 32, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_IRELATIVE", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_NONE, /* undefined? */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_EMPTY_HOWTO (13),
++ LOONGARCH_EMPTY_HOWTO (14),
++ LOONGARCH_EMPTY_HOWTO (15),
++ LOONGARCH_EMPTY_HOWTO (16),
++ LOONGARCH_EMPTY_HOWTO (17),
++ LOONGARCH_EMPTY_HOWTO (18),
++ LOONGARCH_EMPTY_HOWTO (19),
++
++ LOONGARCH_HOWTO (R_LARCH_MARK_LA, /* type (20). */
++ 0, /* rightshift. */
++ 3, /* size. */
++ 0, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_MARK_LA", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask. */
++ 0, /* dst_mask. */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_MARK_LA, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_MARK_PCREL, /* type (21). */
++ 0, /* rightshift. */
++ 3, /* size. */
++ 0, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_MARK_PCREL", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask. */
++ 0, /* dst_mask. */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_MARK_PCREL, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_PUSH_PCREL, /* type (22). */
++ 2, /* rightshift. */
++ 2, /* size. */
++ 32, /* bitsize. */
++ TRUE /* FIXME: somewhat use this. */, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_PUSH_PCREL", /* name. */
++ FALSE, /* partial_inplace. */
++ 0x03ffffff, /* src_mask. */
++ 0x03ffffff, /* dst_mask. */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_PUSH_PCREL, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ /* type 23-37. */
++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_ABSOLUTE),
++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_DUP),
++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_GPREL),
++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_TPREL),
++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_GOT),
++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_GD),
++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_PLT_PCREL),
++ LOONGARCH_DEFAULT_HOWTO (SOP_ASSERT),
++ LOONGARCH_DEFAULT_HOWTO (SOP_NOT),
++ LOONGARCH_DEFAULT_HOWTO (SOP_SUB),
++ LOONGARCH_DEFAULT_HOWTO (SOP_SL),
++ LOONGARCH_DEFAULT_HOWTO (SOP_SR),
++ LOONGARCH_DEFAULT_HOWTO (SOP_ADD),
++ LOONGARCH_DEFAULT_HOWTO (SOP_AND),
++ LOONGARCH_DEFAULT_HOWTO (SOP_IF_ELSE),
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_5, /* type (38). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 5, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_S_10_5", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x7c00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_5, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_U_10_12, /* type (39). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_unsigned, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_U_10_12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_U_10_12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_12, /* type (40). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_S_10_12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_16, /* type (41). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 16, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_S_10_16", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3fffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_16_S2, /* type (42). */
++ 2, /* rightshift. */
++ 2, /* size. */
++ 16, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_S_10_16_S2", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3fffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2, /* bfd_reloc_code_real_type */
++ reloc_bits_b16, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_5_20, /* type (43). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_S_5_20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_S_5_20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_0_5_10_16_S2,
++ /* type (44). */
++ 2, /* rightshift. */
++ 2, /* size. */
++ 21, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_S_0_5_10_16_S2", /* name. */
++ FALSE, /* partial_inplace. */
++ 0xfc0003e0, /* src_mask */
++ 0xfc0003e0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2,
++ /* bfd_reloc_code_real_type */
++ reloc_bits_b21, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, /* type (45). */
++ 2, /* rightshift. */
++ 2, /* size. */
++ 26, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_S_0_10_10_16_S2", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x03ffffff, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2,
++ /* bfd_reloc_code_real_type */
++ reloc_bits_b26, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_U, /* type (46). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 32, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_unsigned, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SOP_POP_32_S_U", /* name. */
++ FALSE, /* partial_inplace. */
++ 0xffffffff00000000, /* src_mask */
++ 0x00000000ffffffff, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SOP_POP_32_U, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ADD8, /* type (47). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 8, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ADD8", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ADD8, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ADD16, /* type (48). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 16, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ADD16", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ADD16, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ADD24, /* type (49). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 24, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ADD24", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ADD24, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ADD32, /* type (50). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 32, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ADD32", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ADD32, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ADD64, /* type (51). */
++ 0, /* rightshift. */
++ 4, /* size. */
++ 64, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ADD64", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ADD64, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SUB8, /* type (52). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 8, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SUB8", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SUB8, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SUB16, /* type (53). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 16, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SUB16", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SUB16, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SUB24, /* type (54). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 24, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SUB24", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SUB24, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SUB32, /* type (55). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 32, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SUB32", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SUB32, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_SUB64, /* type (56). */
++ 0, /* rightshift. */
++ 4, /* size. */
++ 64, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_SUB64", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ ALL_ONES, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_SUB64, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GNU_VTINHERIT, /* type (57). */
++ 0, /* rightshift. */
++ 3, /* size. */
++ 0, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GNU_VTINHERIT", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_NONE, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GNU_VTENTRY, /* type (58). */
++ 0, /* rightshift. */
++ 3, /* size. */
++ 0, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ NULL, /* special_function. */
++ "R_LARCH_GNU_VTENTRY", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_NONE, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_EMPTY_HOWTO (59),
++ LOONGARCH_EMPTY_HOWTO (60),
++ LOONGARCH_EMPTY_HOWTO (61),
++ LOONGARCH_EMPTY_HOWTO (62),
++ LOONGARCH_EMPTY_HOWTO (63),
++
++ /* New reloc types. */
++ LOONGARCH_HOWTO (R_LARCH_B16, /* type (64). */
++ 2, /* rightshift. */
++ 2, /* size. */
++ 16, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_B16", /* name. */
++ FALSE, /* partial_inplace. */
++ 0x3fffc00, /* src_mask */
++ 0x3fffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_B16, /* bfd_reloc_code_real_type */
++ reloc_bits_b16, /* adjust_reloc_bits */
++ "b16"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_B21, /* type (65). */
++ 2, /* rightshift. */
++ 2, /* size. */
++ 21, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_B21", /* name. */
++ FALSE, /* partial_inplace. */
++ 0xfc0003e0, /* src_mask */
++ 0xfc0003e0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_B21, /* bfd_reloc_code_real_type */
++ reloc_bits_b21, /* adjust_reloc_bits */
++ "b21"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_B26, /* type (66). */
++ 2, /* rightshift. */
++ 2, /* size. */
++ 26, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_B26", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x03ffffff, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_B26, /* bfd_reloc_code_real_type */
++ reloc_bits_b26, /* adjust_reloc_bits */
++ "b26"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ABS_HI20, /* type (67). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ABS_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ABS_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "abs_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ABS_LO12, /* type (68). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_unsigned, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ABS_LO12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ABS_LO12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "abs_lo12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ABS64_LO20, /* type (69). */
++ 32, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ABS64_LO20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ABS64_LO20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "abs64_lo20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_ABS64_HI12, /* type (70). */
++ 52, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_ABS64_HI12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_ABS64_HI12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "abs64_hi12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_PCALA_HI20, /* type (71). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_PCALA_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_PCALA_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "pc_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_PCALA_LO12, /* type (72). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_PCALA_LO12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_PCALA_LO12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "pc_lo12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_PCALA64_LO20, /* type (73). */
++ 32, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_PCALA64_LO20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_PCALA64_LO20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "pc64_lo20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_PCALA64_HI12, /* type (74). */
++ 52, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_PCALA64_HI12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_PCALA64_HI12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "pc64_hi12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GOT_PC_HI20, /* type (75). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GOT_PC_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_GOT_PC_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "got_pc_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GOT_PC_LO12, /* type (76). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GOT_PC_LO12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_GOT_PC_LO12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "got_pc_lo12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GOT64_PC_LO20, /* type (77). */
++ 32, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GOT64_PC_LO20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_GOT64_PC_LO20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "got64_pc_lo20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GOT64_PC_HI12, /* type (78). */
++ 52, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GOT64_PC_HI12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_GOT64_PC_HI12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "got64_pc_hi12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GOT_HI20, /* type (79). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GOT_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_GOT_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "got_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GOT_LO12, /* type (80). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GOT_LO12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_GOT_LO12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "got_lo12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GOT64_LO20, /* type (81). */
++ 32, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GOT64_LO20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_GOT64_LO20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "got64_lo20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_GOT64_HI12, /* type (82). */
++ 52, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_GOT64_HI12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_GOT64_HI12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "got64_hi12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_LE_HI20, /* type (83). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_LE_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_LE_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "le_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_LE_LO12, /* type (84). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_LE_LO12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_LE_LO12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "le_lo12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_LE64_LO20, /* type (85). */
++ 32, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_LE64_LO20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_LE64_LO20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "le64_lo20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_LE64_HI12, /* type (86). */
++ 52, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_LE64_HI12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_LE64_HI12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "le64_hi12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_IE_PC_HI20, /* type (87). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_IE_PC_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_IE_PC_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ie_pc_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_IE_PC_LO12, /* type (88). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_unsigned, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_IE_PC_LO12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_IE_PC_LO12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ie_pc_lo12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_IE64_PC_LO20, /* type (89). */
++ 32, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_IE64_PC_LO20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_IE64_PC_LO20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ie64_pc_lo20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_IE64_PC_HI12, /* type (90). */
++ 52, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_IE64_PC_HI12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_IE64_PC_HI12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ie64_pc_hi12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_IE_HI20, /* type (91). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_IE_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_IE_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ie_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_IE_LO12, /* type (92). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_IE_LO12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_IE_LO12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ie_lo12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_IE64_LO20, /* type (93). */
++ 32, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_IE64_LO20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_IE64_LO20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ie64_lo20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_IE64_HI12, /* type (94). */
++ 52, /* rightshift. */
++ 2, /* size. */
++ 12, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 10, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_IE64_HI12", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x3ffc00, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_IE64_HI12, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ie64_hi12"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_LD_PC_HI20, /* type (95). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_LD_PC_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_LD_PC_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ld_pc_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_LD_HI20, /* type (96). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_LD_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_LD_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "ld_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_GD_PC_HI20, /* type (97). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_GD_PC_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_GD_PC_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "gd_pc_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_TLS_GD_HI20, /* type (98). */
++ 12, /* rightshift. */
++ 2, /* size. */
++ 20, /* bitsize. */
++ FALSE, /* pc_relative. */
++ 5, /* bitpos. */
++ complain_overflow_signed, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_TLS_GD_HI20", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0x1ffffe0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_TLS_GD_HI20, /* bfd_reloc_code_real_type */
++ reloc_bits, /* adjust_reloc_bits */
++ "gd_hi20"), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_32_PCREL, /* type (99). */
++ 0, /* rightshift. */
++ 2, /* size. */
++ 32, /* bitsize. */
++ TRUE, /* pc_relative. */
++ 0, /* bitpos. */
++ complain_overflow_dont, /* complain_on_overflow. */
++ bfd_elf_generic_reloc, /* special_function. */
++ "R_LARCH_32_PCREL", /* name. */
++ FALSE, /* partial_inplace. */
++ 0, /* src_mask */
++ 0xffffffff, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_32_PCREL, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++ LOONGARCH_HOWTO (R_LARCH_RELAX, /* type (100). */
++ 0, /* rightshift */
++ 0, /* size */
++ 0, /* bitsize */
++ FALSE, /* pc_relative */
++ 0, /* bitpos */
++ complain_overflow_dont, /* complain_on_overflow */
++ bfd_elf_generic_reloc, /* special_function */
++ "R_LARCH_RELAX", /* name */
++ FALSE, /* partial_inplace */
++ 0, /* src_mask */
++ 0, /* dst_mask */
++ FALSE, /* pcrel_offset */
++ BFD_RELOC_LARCH_RELAX, /* bfd_reloc_code_real_type */
++ NULL, /* adjust_reloc_bits */
++ NULL), /* larch_reloc_type_name */
++
++};
++
++reloc_howto_type *
++loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type)
++{
++ if(r_type < R_LARCH_count)
++ {
++ /* For search table fast. */
++ BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count);
++
++ if (loongarch_howto_table[r_type].howto.type == r_type)
++ return (reloc_howto_type *)&loongarch_howto_table[r_type];
++
++ for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++)
++ if (loongarch_howto_table[i].howto.type == r_type)
++ return (reloc_howto_type *)&loongarch_howto_table[i];
++ }
++
++ (*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"),
++ abfd, r_type);
++ bfd_set_error (bfd_error_bad_value);
++ return NULL;
++}
++
++reloc_howto_type *
++loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
++{
++ BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count);
++
++ for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++)
++ if (loongarch_howto_table[i].howto.name
++ && strcasecmp (loongarch_howto_table[i].howto.name, r_name) == 0)
++ return (reloc_howto_type *)&loongarch_howto_table[i];
++
++ (*_bfd_error_handler) (_("%pB: unsupported relocation type %s"),
++ abfd, r_name);
++ bfd_set_error (bfd_error_bad_value);
++
++ return NULL;
++}
++
++/* Cost so much. */
++reloc_howto_type *
++loongarch_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
++ bfd_reloc_code_real_type code)
++{
++ BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count);
++
++ /* Fast search for new reloc types. */
++ if (BFD_RELOC_LARCH_B16 <= code && code < BFD_RELOC_LARCH_RELAX)
++ {
++ BFD_ASSERT (BFD_RELOC_LARCH_RELAX - BFD_RELOC_LARCH_B16
++ == R_LARCH_RELAX - R_LARCH_B16);
++ loongarch_reloc_howto_type *ht = NULL;
++ ht = &loongarch_howto_table[code - BFD_RELOC_LARCH_B16 + R_LARCH_B16];
++ BFD_ASSERT (ht->bfd_type == code);
++ return (reloc_howto_type *)ht;
++ }
++
++ for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++)
++ if (loongarch_howto_table[i].bfd_type == code)
++ return (reloc_howto_type *)&loongarch_howto_table[i];
++
++ (*_bfd_error_handler) (_("%pB: unsupported bfd relocation type %#x"),
++ abfd, code);
++ bfd_set_error (bfd_error_bad_value);
++
++ return NULL;
++}
++
++bfd_reloc_code_real_type
++loongarch_larch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
++ const char *l_r_name)
++{
++ for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++)
++ {
++ loongarch_reloc_howto_type *lht = &loongarch_howto_table[i];
++ if ((NULL != lht->larch_reloc_type_name)
++ && (0 == strcmp (lht->larch_reloc_type_name, l_r_name)))
++ return lht->bfd_type;
++ }
++
++ (*_bfd_error_handler) (_("%pB: unsupported relocation type name %s"),
++ abfd, l_r_name);
++ bfd_set_error (bfd_error_bad_value);
++ return BFD_RELOC_NONE;
++}
++
++
++/* Functions for reloc bits field.
++ 1. Signed extend *fix_val.
++ 2. Return FALSE if overflow. */
++
++#define LARCH_RELOC_BFD_VMA_BIT_MASK(bitsize) \
++ (~((((bfd_vma)0x1) << (bitsize)) - 1))
++
++/* Adjust val to perform insn
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_5
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_12
++ BFD_RELOC_LARCH_SOP_POP_32_U_10_12
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16
++ BFD_RELOC_LARCH_SOP_POP_32_S_5_20
++ BFD_RELOC_LARCH_SOP_POP_32_U. */
++static bfd_boolean
++reloc_bits (reloc_howto_type *howto, bfd_vma *fix_val)
++{
++ bfd_signed_vma val = ((bfd_signed_vma)(*fix_val)) >> howto->rightshift;
++
++ /* Perform insn bits field. */
++ val = val & (((bfd_vma)0x1 << howto->bitsize) - 1);
++ val <<= howto->bitpos;
++
++ *fix_val = (bfd_vma)val;
++
++ return TRUE;
++}
++
++/* Adjust val to perform insn
++ R_LARCH_SOP_POP_32_S_10_16_S2
++ R_LARCH_B16. */
++static bfd_boolean
++reloc_bits_b16 (reloc_howto_type *howto, bfd_vma *fix_val)
++{
++ if (howto->complain_on_overflow != complain_overflow_signed)
++ return FALSE;
++
++ bfd_signed_vma val = *fix_val;
++
++ /* Judge whether 4 bytes align. */
++ if (val & ((0x1UL << howto->rightshift) - 1))
++ return FALSE;
++
++ int bitsize = howto->bitsize + howto->rightshift;
++ bfd_signed_vma sig_bit = (val >> (bitsize - 1)) & 0x1;
++
++ /* If val < 0, sign bit is 1. */
++ if (sig_bit)
++ {
++ /* Signed bits is 1. */
++ if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
++ != LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1))
++ return FALSE;
++ }
++ else
++ {
++ /* Signed bits is 0. */
++ if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize) & val)
++ return FALSE;
++ }
++
++ /* Perform insn bits field. */
++ val >>= howto->rightshift;
++ val = val & (((bfd_vma)0x1 << howto->bitsize) - 1);
++ val <<= howto->bitpos;
++
++ *fix_val = val;
++
++ return TRUE;
++}
++
++/* Reloc type :
++ R_LARCH_SOP_POP_32_S_0_5_10_16_S2
++ R_LARCH_B21. */
++static bfd_boolean
++reloc_bits_b21 (reloc_howto_type *howto,
++ bfd_vma *fix_val)
++{
++ if (howto->complain_on_overflow != complain_overflow_signed)
++ return FALSE;
++
++ bfd_signed_vma val = *fix_val;
++
++ if (val & ((0x1UL << howto->rightshift) - 1))
++ return FALSE;
++
++ int bitsize = howto->bitsize + howto->rightshift;
++ bfd_signed_vma sig_bit = (val >> (bitsize - 1)) & 0x1;
++
++ /* If val < 0. */
++ if (sig_bit)
++ {
++ if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
++ != LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1))
++ return FALSE;
++ }
++ else
++ {
++ if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize) & val)
++ return FALSE;
++ }
++
++ /* Perform insn bits field. */
++ val >>= howto->rightshift;
++ val = val & (((bfd_vma)0x1 << howto->bitsize) - 1);
++
++ /* Perform insn bits field. 15:0<<10, 20:16>>16. */
++ val = ((val & 0xffff) << 10) | ((val >> 16) & 0x1f);
++
++ *fix_val = val;
++
++ return TRUE;
++}
++
++/* Reloc type:
++ R_LARCH_SOP_POP_32_S_0_10_10_16_S2
++ R_LARCH_B26. */
++static bfd_boolean
++reloc_bits_b26 (reloc_howto_type *howto,
++ bfd_vma *fix_val)
++{
++ /* Return FALSE if overflow. */
++ if (howto->complain_on_overflow != complain_overflow_signed)
++ return FALSE;
++
++ bfd_signed_vma val = *fix_val;
++
++ if (val & ((0x1UL << howto->rightshift) - 1))
++ return FALSE;
++
++ int bitsize = howto->bitsize + howto->rightshift;
++ bfd_signed_vma sig_bit = (val >> (bitsize - 1)) & 0x1;
++
++ /* If val < 0. */
++ if (sig_bit)
++ {
++ if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
++ != LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1))
++ return FALSE;
++ }
++ else
++ {
++ if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize) & val)
++ return FALSE;
++ }
++
++ /* Perform insn bits field. */
++ val >>= howto->rightshift;
++ val = val & (((bfd_vma)0x1 << howto->bitsize) - 1);
++
++ /* Perform insn bits field. 25:16>>16, 15:0<<10. */
++ val = ((val & 0xffff) << 10) | ((val >> 16) & 0x3ff);
++
++ *fix_val = val;
++
++ return TRUE;
++}
++
++bfd_boolean
++loongarch_adjust_reloc_bitsfield (reloc_howto_type *howto,
++ bfd_vma *fix_val)
++{
++ BFD_ASSERT (((loongarch_reloc_howto_type *)howto)->adjust_reloc_bits);
++ return ((loongarch_reloc_howto_type *)
++ howto)->adjust_reloc_bits(howto, fix_val);
++}
+diff --git gdb-10.2/bfd/elfxx-loongarch.h gdb-10.2/bfd/elfxx-loongarch.h
+new file mode 100644
+index 0000000..49c1515
+--- /dev/null
++++ gdb-10.2/bfd/elfxx-loongarch.h
+@@ -0,0 +1,45 @@
++/* LoongArch-specific backend routines.
++ Copyright (C) 2021-2022 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of BFD, the Binary File Descriptor library.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++
++#include "elf/common.h"
++#include "elf/internal.h"
++
++extern reloc_howto_type *
++loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type);
++
++extern reloc_howto_type *
++loongarch_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code);
++
++extern reloc_howto_type *
++loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name);
++
++extern bfd_reloc_code_real_type
++loongarch_larch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
++ const char *l_r_name);
++
++bfd_boolean loongarch_adjust_reloc_bitsfield (reloc_howto_type *howto, bfd_vma *fix_val);
++
++/* TRUE if this is a PLT reference to a local IFUNC. */
++#define PLT_LOCAL_IFUNC_P(INFO, H) \
++ ((H)->dynindx == -1 \
++ || ((bfd_link_executable (INFO) \
++ || ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT) \
++ && (H)->def_regular \
++ && (H)->type == STT_GNU_IFUNC))
+diff --git gdb-10.2/bfd/libbfd.h gdb-10.2/bfd/libbfd.h
+index 74d7e41..a3b40ec 100644
+--- gdb-10.2/bfd/libbfd.h
++++ gdb-10.2/bfd/libbfd.h
+@@ -3396,6 +3396,86 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
+ "BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4",
+ "BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4",
+ "BFD_RELOC_S12Z_OPR",
++ "BFD_RELOC_LARCH_TLS_DTPMOD32",
++ "BFD_RELOC_LARCH_TLS_DTPREL32",
++ "BFD_RELOC_LARCH_TLS_DTPMOD64",
++ "BFD_RELOC_LARCH_TLS_DTPREL64",
++ "BFD_RELOC_LARCH_TLS_TPREL32",
++ "BFD_RELOC_LARCH_TLS_TPREL64",
++ "BFD_RELOC_LARCH_MARK_LA",
++ "BFD_RELOC_LARCH_MARK_PCREL",
++ "BFD_RELOC_LARCH_SOP_PUSH_PCREL",
++ "BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE",
++ "BFD_RELOC_LARCH_SOP_PUSH_DUP",
++ "BFD_RELOC_LARCH_SOP_PUSH_GPREL",
++ "BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL",
++ "BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT",
++ "BFD_RELOC_LARCH_SOP_PUSH_TLS_GD",
++ "BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL",
++ "BFD_RELOC_LARCH_SOP_ASSERT",
++ "BFD_RELOC_LARCH_SOP_NOT",
++ "BFD_RELOC_LARCH_SOP_SUB",
++ "BFD_RELOC_LARCH_SOP_SL",
++ "BFD_RELOC_LARCH_SOP_SR",
++ "BFD_RELOC_LARCH_SOP_ADD",
++ "BFD_RELOC_LARCH_SOP_AND",
++ "BFD_RELOC_LARCH_SOP_IF_ELSE",
++ "BFD_RELOC_LARCH_SOP_POP_32_S_10_5",
++ "BFD_RELOC_LARCH_SOP_POP_32_U_10_12",
++ "BFD_RELOC_LARCH_SOP_POP_32_S_10_12",
++ "BFD_RELOC_LARCH_SOP_POP_32_S_10_16",
++ "BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2",
++ "BFD_RELOC_LARCH_SOP_POP_32_S_5_20",
++ "BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2",
++ "BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2",
++ "BFD_RELOC_LARCH_SOP_POP_32_U",
++ "BFD_RELOC_LARCH_ADD8",
++ "BFD_RELOC_LARCH_ADD16",
++ "BFD_RELOC_LARCH_ADD24",
++ "BFD_RELOC_LARCH_ADD32",
++ "BFD_RELOC_LARCH_ADD64",
++ "BFD_RELOC_LARCH_SUB8",
++ "BFD_RELOC_LARCH_SUB16",
++ "BFD_RELOC_LARCH_SUB24",
++ "BFD_RELOC_LARCH_SUB32",
++ "BFD_RELOC_LARCH_SUB64",
++ "BFD_RELOC_LARCH_B16",
++ "BFD_RELOC_LARCH_B21",
++ "BFD_RELOC_LARCH_B26",
++ "BFD_RELOC_LARCH_ABS_HI20",
++ "BFD_RELOC_LARCH_ABS_LO12",
++ "BFD_RELOC_LARCH_ABS64_LO20",
++ "BFD_RELOC_LARCH_ABS64_HI12",
++ "BFD_RELOC_LARCH_PCALA_HI20",
++ "BFD_RELOC_LARCH_PCALA_LO12",
++ "BFD_RELOC_LARCH_PCALA64_LO20",
++ "BFD_RELOC_LARCH_PCALA64_HI12",
++ "BFD_RELOC_LARCH_GOT_PC_HI20",
++ "BFD_RELOC_LARCH_GOT_PC_LO12",
++ "BFD_RELOC_LARCH_GOT64_PC_LO20",
++ "BFD_RELOC_LARCH_GOT64_PC_HI12",
++ "BFD_RELOC_LARCH_GOT_HI20",
++ "BFD_RELOC_LARCH_GOT_LO12",
++ "BFD_RELOC_LARCH_GOT64_LO20",
++ "BFD_RELOC_LARCH_GOT64_HI12",
++ "BFD_RELOC_LARCH_TLS_LE_HI20",
++ "BFD_RELOC_LARCH_TLS_LE_LO12",
++ "BFD_RELOC_LARCH_TLS_LE64_LO20",
++ "BFD_RELOC_LARCH_TLS_LE64_HI12",
++ "BFD_RELOC_LARCH_TLS_IE_PC_HI20",
++ "BFD_RELOC_LARCH_TLS_IE_PC_LO12",
++ "BFD_RELOC_LARCH_TLS_IE64_PC_LO20",
++ "BFD_RELOC_LARCH_TLS_IE64_PC_HI12",
++ "BFD_RELOC_LARCH_TLS_IE_HI20",
++ "BFD_RELOC_LARCH_TLS_IE_LO12",
++ "BFD_RELOC_LARCH_TLS_IE64_LO20",
++ "BFD_RELOC_LARCH_TLS_IE64_HI12",
++ "BFD_RELOC_LARCH_TLS_LD_PC_HI20",
++ "BFD_RELOC_LARCH_TLS_LD_HI20",
++ "BFD_RELOC_LARCH_TLS_GD_PC_HI20",
++ "BFD_RELOC_LARCH_TLS_GD_HI20",
++ "BFD_RELOC_LARCH_32_PCREL",
++ "BFD_RELOC_LARCH_RELAX",
+ "@@overflow: BFD_RELOC_UNUSED@@",
+ };
+ #endif
+diff --git gdb-10.2/bfd/po/BLD-POTFILES.in gdb-10.2/bfd/po/BLD-POTFILES.in
+index 5fc39cf..8385565 100644
+--- gdb-10.2/bfd/po/BLD-POTFILES.in
++++ gdb-10.2/bfd/po/BLD-POTFILES.in
+@@ -2,10 +2,12 @@ bfd_stdint.h
+ bfdver.h
+ elf32-aarch64.c
+ elf32-ia64.c
++elf32-loongarch.c
+ elf32-riscv.c
+ elf32-target.h
+ elf64-aarch64.c
+ elf64-ia64.c
++elf64-loongarch.c
+ elf64-riscv.c
+ elf64-target.h
+ peigen.c
+diff --git gdb-10.2/bfd/po/SRC-POTFILES.in gdb-10.2/bfd/po/SRC-POTFILES.in
+index 83530b2..96edf89 100644
+--- gdb-10.2/bfd/po/SRC-POTFILES.in
++++ gdb-10.2/bfd/po/SRC-POTFILES.in
+@@ -72,6 +72,7 @@ cpu-iq2000.c
+ cpu-k1om.c
+ cpu-l1om.c
+ cpu-lm32.c
++cpu-loongarch.c
+ cpu-m10200.c
+ cpu-m10300.c
+ cpu-m32c.c
+diff --git gdb-10.2/bfd/reloc.c gdb-10.2/bfd/reloc.c
+index dc923fe..9d70bb1 100644
+--- gdb-10.2/bfd/reloc.c
++++ gdb-10.2/bfd/reloc.c
+@@ -8142,6 +8142,177 @@ ENUM
+ ENUMDOC
+ S12Z relocations.
+
++ENUM
++ BFD_RELOC_LARCH_TLS_DTPMOD32
++ENUMX
++ BFD_RELOC_LARCH_TLS_DTPREL32
++ENUMX
++ BFD_RELOC_LARCH_TLS_DTPMOD64
++ENUMX
++ BFD_RELOC_LARCH_TLS_DTPREL64
++ENUMX
++ BFD_RELOC_LARCH_TLS_TPREL32
++ENUMX
++ BFD_RELOC_LARCH_TLS_TPREL64
++ENUMX
++ BFD_RELOC_LARCH_MARK_LA
++ENUMX
++ BFD_RELOC_LARCH_MARK_PCREL
++ENUMX
++ BFD_RELOC_LARCH_SOP_PUSH_PCREL
++ENUMX
++ BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE
++ENUMX
++ BFD_RELOC_LARCH_SOP_PUSH_DUP
++ENUMX
++ BFD_RELOC_LARCH_SOP_PUSH_GPREL
++ENUMX
++ BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL
++ENUMX
++ BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT
++ENUMX
++ BFD_RELOC_LARCH_SOP_PUSH_TLS_GD
++ENUMX
++ BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL
++ENUMX
++ BFD_RELOC_LARCH_SOP_ASSERT
++ENUMX
++ BFD_RELOC_LARCH_SOP_NOT
++ENUMX
++ BFD_RELOC_LARCH_SOP_SUB
++ENUMX
++ BFD_RELOC_LARCH_SOP_SL
++ENUMX
++ BFD_RELOC_LARCH_SOP_SR
++ENUMX
++ BFD_RELOC_LARCH_SOP_ADD
++ENUMX
++ BFD_RELOC_LARCH_SOP_AND
++ENUMX
++ BFD_RELOC_LARCH_SOP_IF_ELSE
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_5
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_U_10_12
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_12
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_S_5_20
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2
++ENUMX
++ BFD_RELOC_LARCH_SOP_POP_32_U
++ENUMX
++ BFD_RELOC_LARCH_ADD8
++ENUMX
++ BFD_RELOC_LARCH_ADD16
++ENUMX
++ BFD_RELOC_LARCH_ADD24
++ENUMX
++ BFD_RELOC_LARCH_ADD32
++ENUMX
++ BFD_RELOC_LARCH_ADD64
++ENUMX
++ BFD_RELOC_LARCH_SUB8
++ENUMX
++ BFD_RELOC_LARCH_SUB16
++ENUMX
++ BFD_RELOC_LARCH_SUB24
++ENUMX
++ BFD_RELOC_LARCH_SUB32
++ENUMX
++ BFD_RELOC_LARCH_SUB64
++
++ENUMX
++ BFD_RELOC_LARCH_B16
++ENUMX
++ BFD_RELOC_LARCH_B21
++ENUMX
++ BFD_RELOC_LARCH_B26
++
++ENUMX
++ BFD_RELOC_LARCH_ABS_HI20
++ENUMX
++ BFD_RELOC_LARCH_ABS_LO12
++ENUMX
++ BFD_RELOC_LARCH_ABS64_LO20
++ENUMX
++ BFD_RELOC_LARCH_ABS64_HI12
++
++ENUMX
++ BFD_RELOC_LARCH_PCALA_HI20
++ENUMX
++ BFD_RELOC_LARCH_PCALA_LO12
++ENUMX
++ BFD_RELOC_LARCH_PCALA64_LO20
++ENUMX
++ BFD_RELOC_LARCH_PCALA64_HI12
++
++ENUMX
++ BFD_RELOC_LARCH_GOT_PC_HI20
++ENUMX
++ BFD_RELOC_LARCH_GOT_PC_LO12
++ENUMX
++ BFD_RELOC_LARCH_GOT64_PC_LO20
++ENUMX
++ BFD_RELOC_LARCH_GOT64_PC_HI12
++ENUMX
++ BFD_RELOC_LARCH_GOT_HI20
++ENUMX
++ BFD_RELOC_LARCH_GOT_LO12
++ENUMX
++ BFD_RELOC_LARCH_GOT64_LO20
++ENUMX
++ BFD_RELOC_LARCH_GOT64_HI12
++
++ENUMX
++ BFD_RELOC_LARCH_TLS_LE_HI20
++ENUMX
++ BFD_RELOC_LARCH_TLS_LE_LO12
++ENUMX
++ BFD_RELOC_LARCH_TLS_LE64_LO20
++ENUMX
++ BFD_RELOC_LARCH_TLS_LE64_HI12
++ENUMX
++ BFD_RELOC_LARCH_TLS_IE_PC_HI20
++ENUMX
++ BFD_RELOC_LARCH_TLS_IE_PC_LO12
++ENUMX
++ BFD_RELOC_LARCH_TLS_IE64_PC_LO20
++ENUMX
++ BFD_RELOC_LARCH_TLS_IE64_PC_HI12
++ENUMX
++ BFD_RELOC_LARCH_TLS_IE_HI20
++ENUMX
++ BFD_RELOC_LARCH_TLS_IE_LO12
++ENUMX
++ BFD_RELOC_LARCH_TLS_IE64_LO20
++ENUMX
++ BFD_RELOC_LARCH_TLS_IE64_HI12
++ENUMX
++ BFD_RELOC_LARCH_TLS_LD_PC_HI20
++ENUMX
++ BFD_RELOC_LARCH_TLS_LD_HI20
++ENUMX
++ BFD_RELOC_LARCH_TLS_GD_PC_HI20
++ENUMX
++ BFD_RELOC_LARCH_TLS_GD_HI20
++
++ENUMX
++ BFD_RELOC_LARCH_32_PCREL
++
++ENUMX
++ BFD_RELOC_LARCH_RELAX
++
++ENUMDOC
++ LARCH relocations.
++
+ ENDSENUM
+ BFD_RELOC_UNUSED
+ CODE_FRAGMENT
+diff --git gdb-10.2/bfd/targets.c gdb-10.2/bfd/targets.c
+index 35492b9..5f2147f 100644
+--- gdb-10.2/bfd/targets.c
++++ gdb-10.2/bfd/targets.c
+@@ -759,6 +759,8 @@ extern const bfd_target l1om_elf64_vec;
+ extern const bfd_target l1om_elf64_fbsd_vec;
+ extern const bfd_target lm32_elf32_vec;
+ extern const bfd_target lm32_elf32_fdpic_vec;
++extern const bfd_target loongarch_elf64_vec;
++extern const bfd_target loongarch_elf32_vec;
+ extern const bfd_target m32c_elf32_vec;
+ extern const bfd_target m32r_elf32_vec;
+ extern const bfd_target m32r_elf32_le_vec;
+@@ -1346,6 +1348,12 @@ static const bfd_target * const _bfd_target_vector[] =
+ &z80_elf32_vec,
+
+ &z8k_coff_vec,
++
++#ifdef BFD64
++ &loongarch_elf32_vec,
++ &loongarch_elf64_vec,
++#endif
++
+ #endif /* not SELECT_VECS */
+
+ /* Always support S-records, for convenience. */
+diff --git gdb-10.2/config.guess gdb-10.2/config.guess
+index 45001cf..1155f0a 100755
+--- gdb-10.2/config.guess
++++ gdb-10.2/config.guess
+@@ -985,6 +985,9 @@ EOF
+ k1om:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
++ loongarch32:Linux:*:* | loongarch64:Linux:*:* | loongarchx32:Linux:*:*)
++ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
++ exit ;;
+ m32r*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+diff --git gdb-10.2/config.sub gdb-10.2/config.sub
+index f02d43a..df57c18 100755
+--- gdb-10.2/config.sub
++++ gdb-10.2/config.sub
+@@ -1183,6 +1183,7 @@ case $cpu-$vendor in
+ | k1om \
+ | le32 | le64 \
+ | lm32 \
++ | loongarch32 | loongarch64 | loongarchx32 \
+ | m32c | m32r | m32rle \
+ | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
+ | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
+diff --git gdb-10.2/gdb/Makefile.in gdb-10.2/gdb/Makefile.in
+index ec371fc..67af7d0 100644
+--- gdb-10.2/gdb/Makefile.in
++++ gdb-10.2/gdb/Makefile.in
+@@ -712,6 +712,8 @@ ALL_TARGET_OBS = \
+ arch/i386.o \
+ arch/ppc-linux-common.o \
+ arch/riscv.o \
++ arch/loongarch.o \
++ arch/loongarch-linux-nat.o \
+ arm-bsd-tdep.o \
+ arm-fbsd-tdep.o \
+ arm-linux-tdep.o \
+@@ -760,6 +762,9 @@ ALL_TARGET_OBS = \
+ linux-record.o \
+ linux-tdep.o \
+ lm32-tdep.o \
++ loongarch-tdep.o \
++ loongarch-linux-tdep.o \
++ loongarch-linux-nat.o \
+ m32c-tdep.o \
+ m32r-linux-tdep.o \
+ m32r-tdep.o \
+@@ -1324,6 +1329,8 @@ HFILES_NO_SRCDIR = \
+ linux-record.h \
+ linux-tdep.h \
+ location.h \
++ loongarch-tdep.h \
++ loongarch-linux-tdep.h \
+ m2-lang.h \
+ m32r-tdep.h \
+ m68k-tdep.h \
+@@ -1456,6 +1463,8 @@ HFILES_NO_SRCDIR = \
+ arch/arc.h \
+ arch/arm.h \
+ arch/i386.h \
++ arch/loongarch.h \
++ arch/loongarch-linux-nat.h \
+ arch/ppc-linux-common.h \
+ arch/ppc-linux-tdesc.h \
+ arch/riscv.h \
+@@ -1500,6 +1509,7 @@ HFILES_NO_SRCDIR = \
+ nat/linux-personality.h \
+ nat/linux-ptrace.h \
+ nat/linux-waitpid.h \
++ nat/loongarch-linux-watch.h \
+ nat/mips-linux-watch.h \
+ nat/ppc-linux.h \
+ nat/x86-cpuid.h \
+@@ -2205,6 +2215,9 @@ ALLDEPFILES = \
+ linux-record.c \
+ linux-tdep.c \
+ lm32-tdep.c \
++ loongarch-tdep.c \
++ loongarch-linux-tdep.c \
++ loongarch-linux-nat.c \
+ m32r-linux-nat.c \
+ m32r-linux-tdep.c \
+ m32r-tdep.c \
+diff --git gdb-10.2/gdb/arch/loongarch-linux-nat.c gdb-10.2/gdb/arch/loongarch-linux-nat.c
+new file mode 100644
+index 0000000..baf59f8
+--- /dev/null
++++ gdb-10.2/gdb/arch/loongarch-linux-nat.c
+@@ -0,0 +1,93 @@
++/* Copyright (C) 2021 Free Software Foundation, Inc.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++/* For external ptrace. */
++#ifdef GDBSERVER
++#include "server.h"
++#include "nat/gdb_ptrace.h"
++#else
++#include "defs.h"
++#include "nat/gdb_ptrace.h"
++#endif
++
++#include "arch/loongarch.h"
++#include "arch/loongarch-linux-nat.h"
++#include "loongarch-linux-tdep.h"
++#include "elf/common.h"
++#include <sys/uio.h>
++
++static uint32_t
++loongarch_cpucfg_may_ptrace (uint64_t rj, int tid)
++{
++ char t_buf[rj * 4 + 4];
++ struct iovec iovec = { .iov_base = &t_buf, .iov_len = sizeof (t_buf) };
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_CPUCFG, &iovec) < 0)
++ ((uint32_t *) t_buf)[rj] = loongarch_cpucfg (rj);
++ return ((uint32_t *) t_buf)[rj];
++}
++
++struct target_desc *
++loongarch_linux_read_description_runtime (int tid)
++{
++ int rlen, flen, lbt, lsx, lasx;
++
++ uint32_t cpucfg1 = loongarch_cpucfg_may_ptrace (1, tid);
++ rlen = cpucfg1 & 0x2 /* LA64 */ ? 64 : 32;
++
++ uint32_t cpucfg2 = loongarch_cpucfg_may_ptrace (2, tid);
++ flen = 0;
++ if (cpucfg2 & 0x4 /* FP_DP */)
++ flen = 64;
++ else if (cpucfg2 & 0x2 /* FP_SP */)
++ flen = 32;
++ if (flen)
++ {
++ loongarch_elf_fpregset_t regset;
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++ if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET, &iovec) < 0)
++ flen = 0;
++ }
++
++ lbt = 0;
++ if (cpucfg2 & 0x1c0000 /* LBT_X86 || LBT_ARM || LBT_MIPS */)
++ {
++ loongarch_elf_lbtregset_t regset;
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LBT, &iovec) == 0)
++ lbt = 1;
++ }
++
++ lsx = 0;
++ if (cpucfg2 & 0x40 /* LSX */)
++ {
++ loongarch_elf_lsxregset_t regset;
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LSX, &iovec) == 0)
++ lsx = 1;
++ }
++
++ lasx = 0;
++ if (cpucfg2 & 0x80 /* LASX */)
++ {
++ loongarch_elf_lasxregset_t regset;
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LASX, &iovec) == 0)
++ lasx = 1;
++ }
++
++ return loongarch_create_target_description (rlen, flen, lbt, lsx, lasx);
++}
+diff --git gdb-10.2/gdb/arch/loongarch-linux-nat.h gdb-10.2/gdb/arch/loongarch-linux-nat.h
+new file mode 100644
+index 0000000..a9cd453
+--- /dev/null
++++ gdb-10.2/gdb/arch/loongarch-linux-nat.h
+@@ -0,0 +1,35 @@
++/*
++ Copyright (C) 2021 Free Software Foundation, Inc.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#ifndef LOONGARCH_LINUX_NAT_H
++#define LOONGARCH_LINUX_NAT_H
++#include <stdint.h>
++
++static inline uint32_t
++loongarch_cpucfg (uint64_t rj)
++{
++ uint32_t ret;
++ asm ("cpucfg %0,%1" : "=r"(ret) : "r"(rj));
++ return ret;
++}
++
++struct target_desc;
++
++extern struct target_desc *loongarch_linux_read_description_runtime (int tid);
++
++#endif
+diff --git gdb-10.2/gdb/arch/loongarch.c gdb-10.2/gdb/arch/loongarch.c
+new file mode 100644
+index 0000000..cc6b767
+--- /dev/null
++++ gdb-10.2/gdb/arch/loongarch.c
+@@ -0,0 +1,75 @@
++/* Copyright (C) 2021 Free Software Foundation, Inc.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#include "gdbsupport/common-defs.h"
++#include "gdbsupport/common-regcache.h"
++#include "arch/loongarch.h"
++
++unsigned int loongarch_debug = 0;
++
++#include <../features/loongarch/base32.c>
++#include <../features/loongarch/base64.c>
++#include <../features/loongarch/fpu32.c>
++#include <../features/loongarch/fpu64.c>
++#include <../features/loongarch/lbt32.c>
++#include <../features/loongarch/lbt64.c>
++#include <../features/loongarch/lsx.c>
++#include <../features/loongarch/lasx.c>
++
++target_desc *
++loongarch_create_target_description (int rlen, int flen, int lbt,
++ int lsx, int lasx)
++{
++ gdb_assert (rlen == 32 || rlen == 64);
++
++ target_desc *tdesc = allocate_target_description ();
++
++ set_tdesc_architecture (tdesc, rlen == 64 ? "loongarch64" : "loongarch32");
++
++ int regnum = 0;
++
++ if (rlen == 64)
++ regnum = create_feature_loongarch_base64 (tdesc, regnum);
++ else if (rlen == 32)
++ regnum = create_feature_loongarch_base32 (tdesc, regnum);
++ else
++ gdb_assert_not_reached ("rlen unknown");
++
++ if (flen == 64)
++ regnum = create_feature_loongarch_fpu64 (tdesc, regnum);
++ else if (flen == 32)
++ regnum = create_feature_loongarch_fpu32 (tdesc, regnum);
++
++ if (lbt && rlen == 32)
++ regnum = create_feature_loongarch_lbt32 (tdesc, regnum);
++ else if (lbt && rlen == 64)
++ regnum = create_feature_loongarch_lbt64 (tdesc, regnum);
++
++ if (lsx)
++ regnum = create_feature_loongarch_lsx (tdesc, regnum);
++
++ if (lasx)
++ regnum = create_feature_loongarch_lasx (tdesc, regnum);
++
++ return tdesc;
++}
++
++target_desc *
++loongarch_get_base_target_description (int rlen, int flen)
++{
++ return loongarch_create_target_description (rlen, flen, 0, 0, 0);
++}
+diff --git gdb-10.2/gdb/arch/loongarch.h gdb-10.2/gdb/arch/loongarch.h
+new file mode 100644
+index 0000000..997afab
+--- /dev/null
++++ gdb-10.2/gdb/arch/loongarch.h
+@@ -0,0 +1,35 @@
++/*
++ Copyright (C) 2021 Free Software Foundation, Inc.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#ifndef ARCH_LOONGARCH_H
++#define ARCH_LOONGARCH_H
++
++#include "elf/loongarch.h"
++#include "opcode/loongarch.h"
++
++extern unsigned int loongarch_debug;
++
++struct target_desc;
++
++extern struct target_desc *loongarch_get_base_target_description (int rlen, int flen);
++
++extern struct target_desc *
++loongarch_create_target_description (int rlen, int flen, int lbt,
++ int lsx, int lasx);
++
++#endif
+diff --git gdb-10.2/gdb/configure.host gdb-10.2/gdb/configure.host
+index ce52823..046bc85 100644
+--- gdb-10.2/gdb/configure.host
++++ gdb-10.2/gdb/configure.host
+@@ -63,6 +63,7 @@ alpha*) gdb_host_cpu=alpha ;;
+ arm*) gdb_host_cpu=arm ;;
+ hppa*) gdb_host_cpu=pa ;;
+ i[34567]86*) gdb_host_cpu=i386 ;;
++loongarch*) gdb_host_cpu=loongarch ;;
+ m68*) gdb_host_cpu=m68k ;;
+ mips*) gdb_host_cpu=mips ;;
+ powerpc* | rs6000) gdb_host_cpu=powerpc ;;
+@@ -120,6 +121,8 @@ i[34567]86-*-cygwin*) gdb_host=cygwin ;;
+
+ ia64-*-linux*) gdb_host=linux ;;
+
++loongarch*-linux*) gdb_host=linux ;;
++
+ m68*-*-linux*) gdb_host=linux ;;
+ m68*-*-netbsdelf* | m68*-*-knetbsd*-gnu)
+ gdb_host=nbsdelf ;;
+diff --git gdb-10.2/gdb/configure.nat gdb-10.2/gdb/configure.nat
+index bb70e30..fad1631 100644
+--- gdb-10.2/gdb/configure.nat
++++ gdb-10.2/gdb/configure.nat
+@@ -253,6 +253,10 @@ case ${gdb_host} in
+ # Host: Intel IA-64 running GNU/Linux
+ NATDEPFILES="${NATDEPFILES} ia64-linux-nat.o"
+ ;;
++ loongarch)
++ # Host: LoongArch, running GNU/Linux.
++ NATDEPFILES="${NATDEPFILES} loongarch-linux-nat.o arch/loongarch-linux-nat.o linux-nat-trad.o nat/loongarch-linux-watch.o"
++ ;;
+ m32r)
+ # Host: M32R based machine running GNU/Linux
+ NATDEPFILES="${NATDEPFILES} m32r-linux-nat.o"
+diff --git gdb-10.2/gdb/configure.tgt gdb-10.2/gdb/configure.tgt
+index a3e11c4..4454838 100644
+--- gdb-10.2/gdb/configure.tgt
++++ gdb-10.2/gdb/configure.tgt
+@@ -95,6 +95,9 @@ xtensa*)
+ cpu_obs="xtensa-tdep.o xtensa-config.o solib-svr4.o"
+ ;;
+
++loongarch*)
++ cpu_obs="arch/loongarch.o";;
++
+ esac
+
+ # 2. Get the objects per os in $TARG.
+@@ -346,6 +349,11 @@ lm32-*-*)
+ gdb_sim=../sim/lm32/libsim.a
+ ;;
+
++loongarch*-linux*)
++ gdb_target_obs="loongarch-tdep.o loongarch-linux-tdep.o glibc-tdep.o linux-tdep.o solib-svr4.o symfile-mem.o"
++ build_gdbserver=yes
++ ;;
++
+ m32c-*-*)
+ # Target: Renesas M32C family
+ gdb_target_obs="m32c-tdep.o"
+diff --git gdb-10.2/gdb/doc/gdb.texinfo gdb-10.2/gdb/doc/gdb.texinfo
+index 097aacd..94a8537 100644
+--- gdb-10.2/gdb/doc/gdb.texinfo
++++ gdb-10.2/gdb/doc/gdb.texinfo
+@@ -45227,6 +45227,7 @@ registers using the capitalization used in the description.
+ * ARC Features::
+ * ARM Features::
+ * i386 Features::
++* LoongArch Features::
+ * MicroBlaze Features::
+ * MIPS Features::
+ * M68K Features::
+@@ -45444,6 +45445,15 @@ The @samp{org.gnu.gdb.i386.pkeys} feature is optional. It should
+ describe a single register, @samp{pkru}. It is a 32-bit register
+ valid for i386 and amd64.
+
++@node LoongArch Features
++@subsection LoongArch Features
++@cindex target descriptions, LoongArch Features
++
++The @samp{org.gnu.gdb.loongarch.base} feature is required for LoongArch
++targets. It should contain the registers @samp{r0} through @samp{r31},
++@samp{pc}, and @samp{badvaddr}. Either the architectural names (@samp{r0},
++@samp{r1}, etc) can be used, or the ABI names (@samp{zero}, @samp{ra}, etc).
++
+ @node MicroBlaze Features
+ @subsection MicroBlaze Features
+ @cindex target descriptions, MicroBlaze features
+diff --git gdb-10.2/gdb/features/Makefile gdb-10.2/gdb/features/Makefile
+index 67c3ae1..a6f8ea0 100644
+--- gdb-10.2/gdb/features/Makefile
++++ gdb-10.2/gdb/features/Makefile
+@@ -74,6 +74,7 @@ arm-expedite = r11,sp,pc
+ i386-expedite = ebp,esp,eip
+ amd64-expedite = rbp,rsp,rip
+ x32-expedite = rbp,rsp,rip
++loongarch-expedite = r3,pc
+ mips-expedite = r29,pc
+ mips-dsp-expedite = r29,pc
+ mips64-expedite = r29,pc
+@@ -178,6 +179,7 @@ GDB = false
+ aarch64-feature = 1
+ arm-feature = 1
+ i386-feature = 1
++loongarch-feature = 1
+ riscv-feature = 1
+ tic6x-feature = 1
+
+@@ -228,6 +230,14 @@ FEATURE_XMLFILES = aarch64-core.xml \
+ i386/64bit-pkeys.xml \
+ i386/64bit-sse.xml \
+ i386/x32-core.xml \
++ loongarch/base32.xml \
++ loongarch/base64.xml \
++ loongarch/fpu32.xml \
++ loongarch/fpu64.xml \
++ loongarch/lbt32.xml \
++ loongarch/lbt64.xml \
++ loongarch/lsx.xml \
++ loongarch/lasx.xml \
+ riscv/32bit-cpu.xml \
+ riscv/32bit-fpu.xml \
+ riscv/64bit-cpu.xml \
+diff --git gdb-10.2/gdb/features/loongarch/base32.c gdb-10.2/gdb/features/loongarch/base32.c
+new file mode 100644
+index 0000000..3fb35ef
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/base32.c
+@@ -0,0 +1,48 @@
++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
++ Original: base32.xml */
++
++#include "gdbsupport/tdesc.h"
++
++static int
++create_feature_loongarch_base32 (struct target_desc *result, long regnum)
++{
++ struct tdesc_feature *feature;
++
++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.base");
++ tdesc_create_reg (feature, "r0", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r1", regnum++, 1, "general", 32, "code_ptr");
++ tdesc_create_reg (feature, "r2", regnum++, 1, "general", 32, "data_ptr");
++ tdesc_create_reg (feature, "r3", regnum++, 1, "general", 32, "data_ptr");
++ tdesc_create_reg (feature, "r4", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r5", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r6", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r7", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r8", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r9", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r10", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r11", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r12", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r13", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r14", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r15", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r16", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r17", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r18", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r19", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r20", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r21", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r22", regnum++, 1, "general", 32, "data_ptr");
++ tdesc_create_reg (feature, "r23", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r24", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r25", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r26", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r27", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r28", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r29", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r30", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "r31", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "orig_a0", regnum++, 1, "general", 32, "uint32");
++ tdesc_create_reg (feature, "pc", regnum++, 1, "general", 32, "code_ptr");
++ tdesc_create_reg (feature, "badv", regnum++, 1, "general", 32, "code_ptr");
++ return regnum;
++}
+diff --git gdb-10.2/gdb/features/loongarch/base32.xml gdb-10.2/gdb/features/loongarch/base32.xml
+new file mode 100644
+index 0000000..4c44dbe
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/base32.xml
+@@ -0,0 +1,46 @@
++<?xml version="1.0"?>
++<!-- Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Copying and distribution of this file, with or without modification,
++ are permitted in any medium without royalty provided the copyright
++ notice and this notice are preserved. -->
++
++<!DOCTYPE feature SYSTEM "gdb-target.dtd">
++<feature name="org.gnu.gdb.loongarch.base">
++ <reg name="r0" bitsize="32" type="uint32" group="general"/>
++ <reg name="r1" bitsize="32" type="code_ptr" group="general"/>
++ <reg name="r2" bitsize="32" type="data_ptr" group="general"/>
++ <reg name="r3" bitsize="32" type="data_ptr" group="general"/>
++ <reg name="r4" bitsize="32" type="uint32" group="general"/>
++ <reg name="r5" bitsize="32" type="uint32" group="general"/>
++ <reg name="r6" bitsize="32" type="uint32" group="general"/>
++ <reg name="r7" bitsize="32" type="uint32" group="general"/>
++ <reg name="r8" bitsize="32" type="uint32" group="general"/>
++ <reg name="r9" bitsize="32" type="uint32" group="general"/>
++ <reg name="r10" bitsize="32" type="uint32" group="general"/>
++ <reg name="r11" bitsize="32" type="uint32" group="general"/>
++ <reg name="r12" bitsize="32" type="uint32" group="general"/>
++ <reg name="r13" bitsize="32" type="uint32" group="general"/>
++ <reg name="r14" bitsize="32" type="uint32" group="general"/>
++ <reg name="r15" bitsize="32" type="uint32" group="general"/>
++ <reg name="r16" bitsize="32" type="uint32" group="general"/>
++ <reg name="r17" bitsize="32" type="uint32" group="general"/>
++ <reg name="r18" bitsize="32" type="uint32" group="general"/>
++ <reg name="r19" bitsize="32" type="uint32" group="general"/>
++ <reg name="r20" bitsize="32" type="uint32" group="general"/>
++ <reg name="r21" bitsize="32" type="uint32" group="general"/>
++ <reg name="r22" bitsize="32" type="data_ptr" group="general"/>
++ <reg name="r23" bitsize="32" type="uint32" group="general"/>
++ <reg name="r24" bitsize="32" type="uint32" group="general"/>
++ <reg name="r25" bitsize="32" type="uint32" group="general"/>
++ <reg name="r26" bitsize="32" type="uint32" group="general"/>
++ <reg name="r27" bitsize="32" type="uint32" group="general"/>
++ <reg name="r28" bitsize="32" type="uint32" group="general"/>
++ <reg name="r29" bitsize="32" type="uint32" group="general"/>
++ <reg name="r30" bitsize="32" type="uint32" group="general"/>
++ <reg name="r31" bitsize="32" type="uint32" group="general"/>
++ <reg name="orig_a0" bitsize="32" type="uint32" group="general"/>
++ <reg name="pc" bitsize="32" type="code_ptr" group="general"/>
++ <reg name="badv" bitsize="32" type="code_ptr" group="general"/>
++</feature>
+diff --git gdb-10.2/gdb/features/loongarch/base64.c gdb-10.2/gdb/features/loongarch/base64.c
+new file mode 100644
+index 0000000..d84d425
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/base64.c
+@@ -0,0 +1,48 @@
++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
++ Original: base64.xml */
++
++#include "gdbsupport/tdesc.h"
++
++static int
++create_feature_loongarch_base64 (struct target_desc *result, long regnum)
++{
++ struct tdesc_feature *feature;
++
++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.base");
++ tdesc_create_reg (feature, "r0", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r1", regnum++, 1, "general", 64, "code_ptr");
++ tdesc_create_reg (feature, "r2", regnum++, 1, "general", 64, "data_ptr");
++ tdesc_create_reg (feature, "r3", regnum++, 1, "general", 64, "data_ptr");
++ tdesc_create_reg (feature, "r4", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r5", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r6", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r7", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r8", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r9", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r10", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r11", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r12", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r13", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r14", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r15", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r16", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r17", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r18", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r19", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r20", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r21", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r22", regnum++, 1, "general", 64, "data_ptr");
++ tdesc_create_reg (feature, "r23", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r24", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r25", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r26", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r27", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r28", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r29", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r30", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "r31", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "orig_a0", regnum++, 1, "general", 64, "uint64");
++ tdesc_create_reg (feature, "pc", regnum++, 1, "general", 64, "code_ptr");
++ tdesc_create_reg (feature, "badv", regnum++, 1, "general", 64, "code_ptr");
++ return regnum;
++}
+diff --git gdb-10.2/gdb/features/loongarch/base64.xml gdb-10.2/gdb/features/loongarch/base64.xml
+new file mode 100644
+index 0000000..05d766e
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/base64.xml
+@@ -0,0 +1,46 @@
++<?xml version="1.0"?>
++<!-- Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Copying and distribution of this file, with or without modification,
++ are permitted in any medium without royalty provided the copyright
++ notice and this notice are preserved. -->
++
++<!DOCTYPE feature SYSTEM "gdb-target.dtd">
++<feature name="org.gnu.gdb.loongarch.base">
++ <reg name="r0" bitsize="64" type="uint64" group="general"/>
++ <reg name="r1" bitsize="64" type="code_ptr" group="general"/>
++ <reg name="r2" bitsize="64" type="data_ptr" group="general"/>
++ <reg name="r3" bitsize="64" type="data_ptr" group="general"/>
++ <reg name="r4" bitsize="64" type="uint64" group="general"/>
++ <reg name="r5" bitsize="64" type="uint64" group="general"/>
++ <reg name="r6" bitsize="64" type="uint64" group="general"/>
++ <reg name="r7" bitsize="64" type="uint64" group="general"/>
++ <reg name="r8" bitsize="64" type="uint64" group="general"/>
++ <reg name="r9" bitsize="64" type="uint64" group="general"/>
++ <reg name="r10" bitsize="64" type="uint64" group="general"/>
++ <reg name="r11" bitsize="64" type="uint64" group="general"/>
++ <reg name="r12" bitsize="64" type="uint64" group="general"/>
++ <reg name="r13" bitsize="64" type="uint64" group="general"/>
++ <reg name="r14" bitsize="64" type="uint64" group="general"/>
++ <reg name="r15" bitsize="64" type="uint64" group="general"/>
++ <reg name="r16" bitsize="64" type="uint64" group="general"/>
++ <reg name="r17" bitsize="64" type="uint64" group="general"/>
++ <reg name="r18" bitsize="64" type="uint64" group="general"/>
++ <reg name="r19" bitsize="64" type="uint64" group="general"/>
++ <reg name="r20" bitsize="64" type="uint64" group="general"/>
++ <reg name="r21" bitsize="64" type="uint64" group="general"/>
++ <reg name="r22" bitsize="64" type="data_ptr" group="general"/>
++ <reg name="r23" bitsize="64" type="uint64" group="general"/>
++ <reg name="r24" bitsize="64" type="uint64" group="general"/>
++ <reg name="r25" bitsize="64" type="uint64" group="general"/>
++ <reg name="r26" bitsize="64" type="uint64" group="general"/>
++ <reg name="r27" bitsize="64" type="uint64" group="general"/>
++ <reg name="r28" bitsize="64" type="uint64" group="general"/>
++ <reg name="r29" bitsize="64" type="uint64" group="general"/>
++ <reg name="r30" bitsize="64" type="uint64" group="general"/>
++ <reg name="r31" bitsize="64" type="uint64" group="general"/>
++ <reg name="orig_a0" bitsize="64" type="uint64" group="general"/>
++ <reg name="pc" bitsize="64" type="code_ptr" group="general"/>
++ <reg name="badv" bitsize="64" type="code_ptr" group="general"/>
++</feature>
+diff --git gdb-10.2/gdb/features/loongarch/fpu32.c gdb-10.2/gdb/features/loongarch/fpu32.c
+new file mode 100644
+index 0000000..bf8964a
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/fpu32.c
+@@ -0,0 +1,54 @@
++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
++ Original: fpu32.xml */
++
++#include "gdbsupport/tdesc.h"
++
++static int
++create_feature_loongarch_fpu32 (struct target_desc *result, long regnum)
++{
++ struct tdesc_feature *feature;
++
++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.fpu");
++ tdesc_create_reg (feature, "f0", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f1", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f2", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f3", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f4", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f5", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f6", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f7", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f8", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f9", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f10", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f11", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f12", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f13", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f14", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f15", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f16", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f17", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f18", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f19", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f20", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f21", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f22", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f23", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f24", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f25", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f26", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f27", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f28", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f29", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f30", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "f31", regnum++, 1, "float", 32, "ieee_single");
++ tdesc_create_reg (feature, "fcc0", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc1", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc2", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc3", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc4", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc5", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc6", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc7", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcsr", regnum++, 1, "float", 32, "uint32");
++ return regnum;
++}
+diff --git gdb-10.2/gdb/features/loongarch/fpu32.xml gdb-10.2/gdb/features/loongarch/fpu32.xml
+new file mode 100644
+index 0000000..8421730
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/fpu32.xml
+@@ -0,0 +1,53 @@
++<?xml version="1.0"?>
++<!-- Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Copying and distribution of this file, with or without modification,
++ are permitted in any medium without royalty provided the copyright
++ notice and this notice are preserved. -->
++
++<!DOCTYPE feature SYSTEM "gdb-target.dtd">
++<feature name="org.gnu.gdb.loongarch.fpu">
++
++ <reg name="f0" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f1" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f2" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f3" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f4" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f5" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f6" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f7" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f8" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f9" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f10" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f11" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f12" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f13" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f14" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f15" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f16" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f17" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f18" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f19" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f20" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f21" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f22" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f23" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f24" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f25" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f26" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f27" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f28" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f29" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f30" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="f31" bitsize="32" type="ieee_single" group="float"/>
++ <reg name="fcc0" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc1" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc2" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc3" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc4" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc5" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc6" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc7" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcsr" bitsize="32" type="uint32" group="float"/>
++</feature>
+diff --git gdb-10.2/gdb/features/loongarch/fpu64.c gdb-10.2/gdb/features/loongarch/fpu64.c
+new file mode 100644
+index 0000000..f9e24c3
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/fpu64.c
+@@ -0,0 +1,62 @@
++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
++ Original: fpu64.xml */
++
++#include "gdbsupport/tdesc.h"
++
++static int
++create_feature_loongarch_fpu64 (struct target_desc *result, long regnum)
++{
++ struct tdesc_feature *feature;
++
++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.fpu");
++ tdesc_type_with_fields *type_with_fields;
++ type_with_fields = tdesc_create_union (feature, "fpu64type");
++ tdesc_type *field_type;
++ field_type = tdesc_named_type (feature, "ieee_single");
++ tdesc_add_field (type_with_fields, "f", field_type);
++ field_type = tdesc_named_type (feature, "ieee_double");
++ tdesc_add_field (type_with_fields, "d", field_type);
++
++ tdesc_create_reg (feature, "f0", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f1", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f2", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f3", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f4", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f5", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f6", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f7", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f8", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f9", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f10", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f11", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f12", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f13", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f14", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f15", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f16", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f17", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f18", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f19", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f20", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f21", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f22", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f23", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f24", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f25", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f26", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f27", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f28", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f29", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f30", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "f31", regnum++, 1, "float", 64, "fpu64type");
++ tdesc_create_reg (feature, "fcc0", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc1", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc2", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc3", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc4", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc5", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc6", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcc7", regnum++, 1, "float", 8, "uint8");
++ tdesc_create_reg (feature, "fcsr", regnum++, 1, "float", 32, "uint32");
++ return regnum;
++}
+diff --git gdb-10.2/gdb/features/loongarch/fpu64.xml gdb-10.2/gdb/features/loongarch/fpu64.xml
+new file mode 100644
+index 0000000..420be8b
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/fpu64.xml
+@@ -0,0 +1,58 @@
++<?xml version="1.0"?>
++<!-- Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Copying and distribution of this file, with or without modification,
++ are permitted in any medium without royalty provided the copyright
++ notice and this notice are preserved. -->
++
++<!DOCTYPE feature SYSTEM "gdb-target.dtd">
++<feature name="org.gnu.gdb.loongarch.fpu">
++
++ <union id="fpu64type">
++ <field name="f" type="ieee_single"/>
++ <field name="d" type="ieee_double"/>
++ </union>
++
++ <reg name="f0" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f1" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f2" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f3" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f4" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f5" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f6" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f7" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f8" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f9" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f10" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f11" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f12" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f13" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f14" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f15" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f16" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f17" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f18" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f19" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f20" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f21" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f22" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f23" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f24" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f25" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f26" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f27" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f28" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f29" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f30" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="f31" bitsize="64" type="fpu64type" group="float"/>
++ <reg name="fcc0" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc1" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc2" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc3" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc4" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc5" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc6" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcc7" bitsize="8" type="uint8" group="float"/>
++ <reg name="fcsr" bitsize="32" type="uint32" group="float"/>
++</feature>
+diff --git gdb-10.2/gdb/features/loongarch/lasx.c gdb-10.2/gdb/features/loongarch/lasx.c
+new file mode 100644
+index 0000000..96e3ea9
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/lasx.c
+@@ -0,0 +1,80 @@
++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
++ Original: lasx.xml */
++
++#include "gdbsupport/tdesc.h"
++
++static int
++create_feature_loongarch_lasx (struct target_desc *result, long regnum)
++{
++ struct tdesc_feature *feature;
++
++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lasx");
++ tdesc_type *element_type;
++ element_type = tdesc_named_type (feature, "int8");
++ tdesc_create_vector (feature, "v32i8", element_type, 32);
++
++ element_type = tdesc_named_type (feature, "int16");
++ tdesc_create_vector (feature, "v16i16", element_type, 16);
++
++ element_type = tdesc_named_type (feature, "int32");
++ tdesc_create_vector (feature, "v8i32", element_type, 8);
++
++ element_type = tdesc_named_type (feature, "int64");
++ tdesc_create_vector (feature, "v4i64", element_type, 4);
++
++ element_type = tdesc_named_type (feature, "ieee_single");
++ tdesc_create_vector (feature, "v8f32", element_type, 8);
++
++ element_type = tdesc_named_type (feature, "ieee_double");
++ tdesc_create_vector (feature, "v4f64", element_type, 4);
++
++ tdesc_type_with_fields *type_with_fields;
++ type_with_fields = tdesc_create_union (feature, "lasxv");
++ tdesc_type *field_type;
++ field_type = tdesc_named_type (feature, "v32i8");
++ tdesc_add_field (type_with_fields, "v32i8", field_type);
++ field_type = tdesc_named_type (feature, "v16i16");
++ tdesc_add_field (type_with_fields, "v16i16", field_type);
++ field_type = tdesc_named_type (feature, "v8i32");
++ tdesc_add_field (type_with_fields, "v8i32", field_type);
++ field_type = tdesc_named_type (feature, "v4i64");
++ tdesc_add_field (type_with_fields, "v4i64", field_type);
++ field_type = tdesc_named_type (feature, "v8f32");
++ tdesc_add_field (type_with_fields, "v8f32", field_type);
++ field_type = tdesc_named_type (feature, "v4f64");
++ tdesc_add_field (type_with_fields, "v4f64", field_type);
++
++ tdesc_create_reg (feature, "xr0", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr1", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr2", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr3", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr4", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr5", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr6", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr7", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr8", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr9", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr10", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr11", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr12", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr13", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr14", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr15", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr16", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr17", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr18", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr19", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr20", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr21", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr22", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr23", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr24", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr25", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr26", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr27", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr28", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr29", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr30", regnum++, 1, "lasx", 256, "lasxv");
++ tdesc_create_reg (feature, "xr31", regnum++, 1, "lasx", 256, "lasxv");
++ return regnum;
++}
+diff --git gdb-10.2/gdb/features/loongarch/lasx.xml gdb-10.2/gdb/features/loongarch/lasx.xml
+new file mode 100644
+index 0000000..6f73df0
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/lasx.xml
+@@ -0,0 +1,59 @@
++<?xml version="1.0"?>
++<!-- Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Copying and distribution of this file, with or without modification,
++ are permitted in any medium without royalty provided the copyright
++ notice and this notice are preserved. -->
++
++<!DOCTYPE feature SYSTEM "gdb-target.dtd">
++<feature name="org.gnu.gdb.loongarch.lasx">
++ <vector id="v32i8" type="int8" count="32"/>
++ <vector id="v16i16" type="int16" count="16"/>
++ <vector id="v8i32" type="int32" count="8"/>
++ <vector id="v4i64" type="int64" count="4"/>
++ <vector id="v8f32" type="ieee_single" count="8"/>
++ <vector id="v4f64" type="ieee_double" count="4"/>
++
++ <union id="lasxv">
++ <field name="v32i8" type="v32i8"/>
++ <field name="v16i16" type="v16i16"/>
++ <field name="v8i32" type="v8i32"/>
++ <field name="v4i64" type="v4i64"/>
++ <field name="v8f32" type="v8f32"/>
++ <field name="v4f64" type="v4f64"/>
++ </union>
++
++ <reg name="xr0" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr1" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr2" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr3" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr4" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr5" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr6" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr7" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr8" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr9" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr10" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr11" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr12" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr13" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr14" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr15" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr16" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr17" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr18" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr19" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr20" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr21" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr22" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr23" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr24" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr25" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr26" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr27" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr28" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr29" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr30" bitsize="256" type="lasxv" group="lasx"/>
++ <reg name="xr31" bitsize="256" type="lasxv" group="lasx"/>
++</feature>
+diff --git gdb-10.2/gdb/features/loongarch/lbt32.c gdb-10.2/gdb/features/loongarch/lbt32.c
+new file mode 100644
+index 0000000..d245c75
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/lbt32.c
+@@ -0,0 +1,19 @@
++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
++ Original: lbt32.xml */
++
++#include "gdbsupport/tdesc.h"
++
++static int
++create_feature_loongarch_lbt32 (struct target_desc *result, long regnum)
++{
++ struct tdesc_feature *feature;
++
++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lbt");
++ tdesc_create_reg (feature, "scr0", regnum++, 1, "lbt", 32, "uint32");
++ tdesc_create_reg (feature, "scr1", regnum++, 1, "lbt", 32, "uint32");
++ tdesc_create_reg (feature, "scr2", regnum++, 1, "lbt", 32, "uint32");
++ tdesc_create_reg (feature, "scr3", regnum++, 1, "lbt", 32, "uint32");
++ tdesc_create_reg (feature, "EFLAG", regnum++, 1, "lbt", 32, "uint32");
++ tdesc_create_reg (feature, "x86_top", regnum++, 1, "lbt", 8, "uint8");
++ return regnum;
++}
+diff --git gdb-10.2/gdb/features/loongarch/lbt32.xml gdb-10.2/gdb/features/loongarch/lbt32.xml
+new file mode 100644
+index 0000000..1c0133e
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/lbt32.xml
+@@ -0,0 +1,17 @@
++<?xml version="1.0"?>
++<!-- Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Copying and distribution of this file, with or without modification,
++ are permitted in any medium without royalty provided the copyright
++ notice and this notice are preserved. -->
++
++<!DOCTYPE feature SYSTEM "gdb-target.dtd">
++<feature name="org.gnu.gdb.loongarch.lbt">
++ <reg name="scr0" bitsize="32" type="uint32" group="lbt"/>
++ <reg name="scr1" bitsize="32" type="uint32" group="lbt"/>
++ <reg name="scr2" bitsize="32" type="uint32" group="lbt"/>
++ <reg name="scr3" bitsize="32" type="uint32" group="lbt"/>
++ <reg name="EFLAG" bitsize="32" type="uint32" group="lbt"/>
++ <reg name="x86_top" bitsize="8" type="uint8" group="lbt"/>
++</feature>
+diff --git gdb-10.2/gdb/features/loongarch/lbt64.c gdb-10.2/gdb/features/loongarch/lbt64.c
+new file mode 100644
+index 0000000..ecef330
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/lbt64.c
+@@ -0,0 +1,19 @@
++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
++ Original: lbt64.xml */
++
++#include "gdbsupport/tdesc.h"
++
++static int
++create_feature_loongarch_lbt64 (struct target_desc *result, long regnum)
++{
++ struct tdesc_feature *feature;
++
++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lbt");
++ tdesc_create_reg (feature, "scr0", regnum++, 1, "lbt", 64, "uint64");
++ tdesc_create_reg (feature, "scr1", regnum++, 1, "lbt", 64, "uint64");
++ tdesc_create_reg (feature, "scr2", regnum++, 1, "lbt", 64, "uint64");
++ tdesc_create_reg (feature, "scr3", regnum++, 1, "lbt", 64, "uint64");
++ tdesc_create_reg (feature, "EFLAG", regnum++, 1, "lbt", 32, "uint32");
++ tdesc_create_reg (feature, "x86_top", regnum++, 1, "lbt", 8, "uint8");
++ return regnum;
++}
+diff --git gdb-10.2/gdb/features/loongarch/lbt64.xml gdb-10.2/gdb/features/loongarch/lbt64.xml
+new file mode 100644
+index 0000000..1df26f5
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/lbt64.xml
+@@ -0,0 +1,17 @@
++<?xml version="1.0"?>
++<!-- Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Copying and distribution of this file, with or without modification,
++ are permitted in any medium without royalty provided the copyright
++ notice and this notice are preserved. -->
++
++<!DOCTYPE feature SYSTEM "gdb-target.dtd">
++<feature name="org.gnu.gdb.loongarch.lbt">
++ <reg name="scr0" bitsize="64" type="uint64" group="lbt"/>
++ <reg name="scr1" bitsize="64" type="uint64" group="lbt"/>
++ <reg name="scr2" bitsize="64" type="uint64" group="lbt"/>
++ <reg name="scr3" bitsize="64" type="uint64" group="lbt"/>
++ <reg name="EFLAG" bitsize="32" type="uint32" group="lbt"/>
++ <reg name="x86_top" bitsize="8" type="uint8" group="lbt"/>
++</feature>
+diff --git gdb-10.2/gdb/features/loongarch/lsx.c gdb-10.2/gdb/features/loongarch/lsx.c
+new file mode 100644
+index 0000000..dd253f3
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/lsx.c
+@@ -0,0 +1,80 @@
++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
++ Original: lsx.xml */
++
++#include "gdbsupport/tdesc.h"
++
++static int
++create_feature_loongarch_lsx (struct target_desc *result, long regnum)
++{
++ struct tdesc_feature *feature;
++
++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lsx");
++ tdesc_type *element_type;
++ element_type = tdesc_named_type (feature, "int8");
++ tdesc_create_vector (feature, "v16i8", element_type, 16);
++
++ element_type = tdesc_named_type (feature, "int16");
++ tdesc_create_vector (feature, "v8i16", element_type, 8);
++
++ element_type = tdesc_named_type (feature, "int32");
++ tdesc_create_vector (feature, "v4i32", element_type, 4);
++
++ element_type = tdesc_named_type (feature, "int64");
++ tdesc_create_vector (feature, "v2i64", element_type, 2);
++
++ element_type = tdesc_named_type (feature, "ieee_single");
++ tdesc_create_vector (feature, "v4f32", element_type, 4);
++
++ element_type = tdesc_named_type (feature, "ieee_double");
++ tdesc_create_vector (feature, "v2f64", element_type, 2);
++
++ tdesc_type_with_fields *type_with_fields;
++ type_with_fields = tdesc_create_union (feature, "lsxv");
++ tdesc_type *field_type;
++ field_type = tdesc_named_type (feature, "v16i8");
++ tdesc_add_field (type_with_fields, "v16i8", field_type);
++ field_type = tdesc_named_type (feature, "v8i16");
++ tdesc_add_field (type_with_fields, "v8i16", field_type);
++ field_type = tdesc_named_type (feature, "v4i32");
++ tdesc_add_field (type_with_fields, "v4i32", field_type);
++ field_type = tdesc_named_type (feature, "v2i64");
++ tdesc_add_field (type_with_fields, "v2i64", field_type);
++ field_type = tdesc_named_type (feature, "v4f32");
++ tdesc_add_field (type_with_fields, "v4f32", field_type);
++ field_type = tdesc_named_type (feature, "v2f64");
++ tdesc_add_field (type_with_fields, "v2f64", field_type);
++
++ tdesc_create_reg (feature, "vr0", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr1", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr2", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr3", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr4", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr5", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr6", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr7", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr8", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr9", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr10", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr11", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr12", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr13", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr14", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr15", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr16", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr17", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr18", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr19", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr20", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr21", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr22", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr23", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr24", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr25", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr26", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr27", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr28", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr29", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr30", regnum++, 1, "lsx", 128, "lsxv");
++ tdesc_create_reg (feature, "vr31", regnum++, 1, "lsx", 128, "lsxv");
++ return regnum;
++}
+diff --git gdb-10.2/gdb/features/loongarch/lsx.xml gdb-10.2/gdb/features/loongarch/lsx.xml
+new file mode 100644
+index 0000000..a0a6ba4
+--- /dev/null
++++ gdb-10.2/gdb/features/loongarch/lsx.xml
+@@ -0,0 +1,59 @@
++<?xml version="1.0"?>
++<!-- Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ Copying and distribution of this file, with or without modification,
++ are permitted in any medium without royalty provided the copyright
++ notice and this notice are preserved. -->
++
++<!DOCTYPE feature SYSTEM "gdb-target.dtd">
++<feature name="org.gnu.gdb.loongarch.lsx">
++ <vector id="v16i8" type="int8" count="16"/>
++ <vector id="v8i16" type="int16" count="8"/>
++ <vector id="v4i32" type="int32" count="4"/>
++ <vector id="v2i64" type="int64" count="2"/>
++ <vector id="v4f32" type="ieee_single" count="4"/>
++ <vector id="v2f64" type="ieee_double" count="2"/>
++
++ <union id="lsxv">
++ <field name="v16i8" type="v16i8"/>
++ <field name="v8i16" type="v8i16"/>
++ <field name="v4i32" type="v4i32"/>
++ <field name="v2i64" type="v2i64"/>
++ <field name="v4f32" type="v4f32"/>
++ <field name="v2f64" type="v2f64"/>
++ </union>
++
++ <reg name="vr0" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr1" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr2" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr3" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr4" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr5" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr6" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr7" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr8" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr9" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr10" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr11" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr12" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr13" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr14" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr15" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr16" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr17" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr18" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr19" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr20" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr21" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr22" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr23" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr24" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr25" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr27" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr28" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr29" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr30" bitsize="128" type="lsxv" group="lsx"/>
++ <reg name="vr31" bitsize="128" type="lsxv" group="lsx"/>
++</feature>
+diff --git gdb-10.2/gdb/loongarch-linux-nat.c gdb-10.2/gdb/loongarch-linux-nat.c
+new file mode 100644
+index 0000000..e79b660
+--- /dev/null
++++ gdb-10.2/gdb/loongarch-linux-nat.c
+@@ -0,0 +1,878 @@
++/* Target-dependent code for GNU/Linux LoongArch.
++
++ Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#include "defs.h"
++#include "command.h"
++#include "gdbcmd.h"
++#include "inferior.h"
++#include "loongarch-tdep.h"
++#include "target.h"
++#include "regcache.h"
++#include "linux-nat-trad.h"
++#include "loongarch-linux-tdep.h"
++#include "target-descriptions.h"
++
++#include "gdb_proc_service.h"
++#include "gregset.h"
++
++#include "nat/gdb_ptrace.h"
++#include <asm/ptrace.h>
++#include "inf-ptrace.h"
++#include "arch/loongarch-linux-nat.h"
++#include "elf/common.h"
++
++#include "nat/loongarch-linux-watch.h"
++
++class loongarch_linux_nat_target final : public linux_nat_trad_target
++{
++public:
++ void fetch_registers (struct regcache *, int) override;
++ void store_registers (struct regcache *, int) override;
++
++ void close () override;
++
++ int can_use_hw_breakpoint (enum bptype, int, int) override;
++
++ int insert_hw_breakpoint (struct gdbarch *,
++ struct bp_target_info *) override;
++
++ int remove_hw_breakpoint (struct gdbarch *,
++ struct bp_target_info *) override;
++
++ int remove_watchpoint (CORE_ADDR, int, enum target_hw_bp_type,
++ struct expression *) override;
++
++ int insert_watchpoint (CORE_ADDR, int, enum target_hw_bp_type,
++ struct expression *) override;
++
++ bool stopped_by_watchpoint () override;
++
++ bool stopped_data_address (CORE_ADDR *) override;
++
++ int region_ok_for_hw_watchpoint (CORE_ADDR, int) override;
++
++ const struct target_desc *read_description () override;
++
++ enum target_xfer_status xfer_partial (enum target_object object,
++ const char *annex, gdb_byte *readbuf,
++ const gdb_byte *writebuf,
++ ULONGEST offset, ULONGEST len,
++ ULONGEST *xfered_len) override;
++
++protected:
++ CORE_ADDR register_u_offset (struct gdbarch *gdbarch, int regno,
++ int store_p) override;
++
++ void low_new_thread (struct lwp_info *lp) override;
++};
++
++const struct target_desc *
++loongarch_linux_nat_target::read_description ()
++{
++ return loongarch_linux_read_description_runtime (inferior_ptid.pid ());
++}
++
++/* Fill GDB's register array with the general-purpose, orig_a0, pc and badv
++ register values from the current thread. */
++
++static void
++fetch_gregs_from_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_gregset_t regset;
++
++ if ((regno == -1) || (regs->r <= regno && regno < regs->r + 32) ||
++ (regs->orig_a0 == regno) || (regs->pc == regno) ||
++ (regs->badv == regno))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_PRSTATUS, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get NT_PRSTATUS registers"));
++ else
++ loongarch_elf_gregset.supply_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ }
++}
++
++/* Store to the current thread the valid general-purpose, orig_a0, pc and badv
++ register values in the GDB's register array. */
++
++static void
++store_gregs_to_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_gregset_t regset;
++
++ if ((regno == -1) || (regs->r <= regno && regno < regs->r + 32) ||
++ (regs->orig_a0 == regno) || (regs->pc == regno) ||
++ (regs->badv == regno))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_PRSTATUS, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get NT_PRSTATUS registers"));
++ else
++ {
++ loongarch_elf_gregset.collect_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ if (ptrace (PTRACE_SETREGSET, tid, NT_PRSTATUS, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't set NT_PRSTATUS registers"));
++ }
++ }
++}
++
++/* Fill GDB's register array with the fp, fcc and fcsr
++ register values from the current thread. */
++
++static void
++fetch_fpregs_from_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_fpregset_t regset;
++
++ if ((regno == -1) || (regs->f <= regno && regno < regs->f + 32) ||
++ (regs->fcc <= regno && regno < regs->fcc + 8) || (regs->fcsr == regno))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get NT_FPREGSET registers"));
++ else
++ loongarch_elf_fpregset.supply_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ }
++}
++
++/* Store to the current thread the valid fp, fcc and fcsr
++ register values in the GDB's register array. */
++
++static void
++store_fpregs_to_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_fpregset_t regset;
++
++ if ((regno == -1) || (regs->f <= regno && regno < regs->f + 32) ||
++ (regs->fcc <= regno && regno < regs->fcc + 8) || (regs->fcsr == regno))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get NT_FPREGSET registers"));
++ else
++ {
++ loongarch_elf_fpregset.collect_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ if (ptrace (PTRACE_SETREGSET, tid, NT_FPREGSET, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't set NT_FPREGSET registers"));
++ }
++ }
++}
++
++/* Fill GDB's register array with the Binary Translation
++ register values from the current thread. */
++
++static void
++fetch_lbtregs_from_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_lbtregset_t regset;
++
++ if ((regno == -1) || (regs->scr <= regno && regno < regs->scr + 4) ||
++ (regs->EFLAG == regno) || (regs->x86_top == regno))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LBT, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get LBT registers"));
++ else
++ loongarch_elf_lbtregset.supply_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ }
++}
++
++/* Store to the current thread the valid Binary Translation
++ register values in the GDB's register array. */
++
++static void
++store_lbtregs_to_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_lbtregset_t regset;
++
++ if ((regno == -1) || (regs->scr <= regno && regno < regs->scr + 4) ||
++ (regs->EFLAG == regno) || (regs->x86_top == regno))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LBT, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get LBT registers"));
++ else
++ {
++ loongarch_elf_lbtregset.collect_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ if (ptrace (PTRACE_SETREGSET, tid, NT_LARCH_LBT, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't set LBT registers"));
++ }
++ }
++}
++
++/* Fill GDB's register array with the SIMD eXtension
++ register values from the current thread. */
++
++static void
++fetch_lsxregs_from_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_lsxregset_t regset;
++
++ if ((regno == -1) || (regs->vr <= regno && regno < regs->vr + 32))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get LSX registers"));
++ else
++ loongarch_elf_lsxregset.supply_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ }
++}
++
++/* Store to the current thread the valid SIMD eXtension
++ register values in the GDB's register array. */
++
++static void
++store_lsxregs_to_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_lsxregset_t regset;
++
++ if ((regno == -1) || (regs->vr <= regno && regno < regs->vr + 32))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get LSX registers"));
++ else
++ {
++ loongarch_elf_lsxregset.collect_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ if (ptrace (PTRACE_SETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't set LSX registers"));
++ }
++ }
++}
++
++/* Fill GDB's register array with the Advanced SIMD eXtension
++ register values from the current thread. */
++
++static void
++fetch_lasxregs_from_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_lasxregset_t regset;
++
++ if ((regno == -1) || (regs->xr <= regno && regno < regs->xr + 32))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LASX, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get LASX registers"));
++ else
++ loongarch_elf_lasxregset.supply_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ }
++}
++
++/* Store to the current thread the valid Advanced SIMD eXtension
++ register values in the GDB's register array. */
++
++static void
++store_lasxregs_to_thread (struct regcache *regcache, int regno, pid_t tid)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ loongarch_elf_lasxregset_t regset;
++
++ if ((regno == -1) || (regs->xr <= regno && regno < regs->xr + 32))
++ {
++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) };
++
++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't get LSX registers"));
++ else
++ {
++ loongarch_elf_lsxregset.collect_regset (NULL, regcache, regno, ®set,
++ sizeof (regset));
++ if (ptrace (PTRACE_SETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0)
++ perror_with_name (_("Couldn't set LSX registers"));
++ }
++ }
++}
++
++/* Implement the "fetch_registers" target_ops method. */
++
++void
++loongarch_linux_nat_target::fetch_registers (struct regcache *regcache,
++ int regno)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ pid_t tid = get_ptrace_pid (regcache->ptid ());
++
++ fetch_gregs_from_thread(regcache, regno, tid);
++
++ if (regs->f > 0)
++ fetch_fpregs_from_thread(regcache, regno, tid);
++
++ if (regs->scr > 0)
++ fetch_lbtregs_from_thread(regcache, regno, tid);
++
++ if (regs->vr > 0)
++ fetch_lsxregs_from_thread(regcache, regno, tid);
++
++ if (regs->xr > 0)
++ fetch_lasxregs_from_thread(regcache, regno, tid);
++}
++
++/* Implement the "store_registers" target_ops method. */
++
++void
++loongarch_linux_nat_target::store_registers (struct regcache *regcache,
++ int regno)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ pid_t tid = get_ptrace_pid (regcache->ptid ());
++
++ store_gregs_to_thread(regcache, regno, tid);
++
++ if (regs->f > 0)
++ store_fpregs_to_thread(regcache, regno, tid);
++
++ if (regs->scr > 0)
++ store_lbtregs_to_thread(regcache, regno, tid);
++
++ if (regs->vr > 0)
++ store_lsxregs_to_thread(regcache, regno, tid);
++
++ if (regs->xr > 0)
++ store_lasxregs_to_thread(regcache, regno, tid);
++}
++
++/* Return the address in the core dump or inferior of register REGNO. */
++
++CORE_ADDR
++loongarch_linux_nat_target::register_u_offset (struct gdbarch *gdbarch,
++ int regno, int store_p)
++{
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ /* according to <asm/ptrace.h> */
++ if (0 <= regs->r && regs->r <= regno && regno < regs->r + GPR_NUM)
++ return GPR_BASE + regno - regs->r;
++ else if (regs->pc == regno)
++ return PC;
++ return -1;
++}
++
++/* Implement the to_xfer_partial target_ops method. */
++
++enum target_xfer_status
++loongarch_linux_nat_target::xfer_partial (enum target_object object,
++ const char *annex, gdb_byte *readbuf,
++ const gdb_byte *writebuf,
++ ULONGEST offset, ULONGEST len,
++ ULONGEST *xfered_len)
++{
++ pid_t pid = inferior_ptid.pid ();
++
++ if (object != TARGET_OBJECT_LARCH)
++ return linux_nat_trad_target::xfer_partial (
++ object, annex, readbuf, writebuf, offset, len, xfered_len);
++
++ if (strcmp (annex, "cpucfg") == 0)
++ {
++ if (writebuf)
++ return TARGET_XFER_E_IO;
++ if (offset % 4 != 0 || offset % 4 != 0)
++ return TARGET_XFER_E_IO;
++ char t_buf[offset + len];
++ struct iovec iovec = { .iov_base = &t_buf, .iov_len = sizeof (t_buf) };
++ if (ptrace (PTRACE_GETREGSET, pid, NT_LARCH_CPUCFG, &iovec) < 0)
++ {
++ size_t i;
++ for (i = offset / 4; i < (offset + len) / 4 + 1; i++)
++ ((uint32_t *) t_buf)[i] = loongarch_cpucfg (i);
++ }
++ memcpy (readbuf, t_buf + offset, len);
++ *xfered_len = len;
++ return TARGET_XFER_OK;
++ }
++
++ return TARGET_XFER_E_IO;
++}
++
++static loongarch_linux_nat_target the_loongarch_linux_nat_target;
++
++/* Wrapper functions. These are only used by libthread_db. */
++
++void
++supply_gregset (struct regcache *regcache,
++ const gdb_gregset_t /* elf_gregset_t */ *gregset)
++{
++ loongarch_elf_gregset.supply_regset (NULL, regcache, -1, gregset,
++ sizeof (gdb_gregset_t));
++}
++
++void
++fill_gregset (const struct regcache *regcache,
++ gdb_gregset_t /* elf_gregset_t */ *gregset, int regno)
++{
++ loongarch_elf_gregset.collect_regset (NULL, regcache, regno, gregset,
++ sizeof (gdb_gregset_t));
++}
++
++void
++supply_fpregset (struct regcache *regcache,
++ const gdb_fpregset_t /* elf_fpregset_t */ *fpregset)
++{
++ loongarch_elf_fpregset.supply_regset (NULL, regcache, -1, fpregset,
++ sizeof (gdb_fpregset_t));
++}
++
++void
++fill_fpregset (const struct regcache *regcache,
++ gdb_fpregset_t /* elf_fpregset_t */ *fpregset, int regno)
++{
++ loongarch_elf_fpregset.collect_regset (NULL, regcache, regno, fpregset,
++ sizeof (gdb_fpregset_t));
++}
++
++/* -1 if the kernel and/or CPU do not support watch registers.
++ 1 if watch_readback is valid and we can read style, num_valid
++ and the masks.
++ 0 if we need to read the watch_readback. */
++
++static int watch_readback_valid;
++
++/* Cached watch register read values. */
++
++static struct pt_watch_regs watch_readback =
++{
++ .max_valid = MAX_DEBUG_REGISTER,
++};
++
++static struct loongarch_watchpoint *current_watches;
++
++/* The current set of watch register values for writing the
++ registers. */
++
++static struct pt_watch_regs watch_mirror =
++{
++ .max_valid = MAX_DEBUG_REGISTER,
++};
++
++static void
++loongarch_show_dr (const char *func, CORE_ADDR addr, int len,
++ enum target_hw_bp_type type)
++{
++ int i;
++
++ puts_unfiltered (func);
++ if (addr || len)
++ printf_unfiltered (
++ " (addr=%s, len=%d, type=%s)", paddress (target_gdbarch (), addr), len,
++ type == hw_write
++ ? "data-write"
++ : (type == hw_read
++ ? "data-read"
++ : (type == hw_access ? "data-read/write"
++ : (type == hw_execute ? "instruction-execute"
++ : "??unknown??"))));
++ puts_unfiltered (":\n");
++
++ for (i = 0; i < MAX_DEBUG_REGISTER; i++)
++ printf_unfiltered (
++ "\tDR%d: addr=%s, mask=%s\n", i,
++ paddress (target_gdbarch (),
++ loongarch_linux_watch_get_addr (&watch_mirror, i)),
++ paddress (target_gdbarch (),
++ loongarch_linux_watch_get_mask (&watch_mirror, i)));
++}
++
++/* Target to_can_use_hw_breakpoint implementation. Return 1 if we can
++ handle the specified watch type. */
++
++int
++loongarch_linux_nat_target::can_use_hw_breakpoint (enum bptype type, int cnt,
++ int ot)
++{
++ int i;
++ uint32_t wanted_mask, irw_mask;
++ long lwp = inferior_ptid.lwp ();
++
++ if (!loongarch_linux_read_watch_registers (lwp, &watch_readback,
++ &watch_readback_valid, 0))
++ return 0;
++
++ switch (type)
++ {
++ case bp_hardware_watchpoint:
++ wanted_mask = W_MASK;
++ break;
++ case bp_read_watchpoint:
++ wanted_mask = R_MASK;
++ break;
++ case bp_access_watchpoint:
++ wanted_mask = R_MASK | W_MASK;
++ break;
++ case bp_hardware_breakpoint:
++ wanted_mask = I_MASK;
++ break;
++ default:
++ return 0;
++ }
++
++ for (i = 0; i < loongarch_linux_watch_get_num_valid (&watch_readback) && cnt;
++ i++)
++ {
++ irw_mask = loongarch_linux_watch_get_irwmask (&watch_readback, i);
++ if ((irw_mask & wanted_mask) == wanted_mask)
++ cnt--;
++ }
++ return (cnt == 0) ? 1 : 0;
++}
++
++/* Target to_stopped_by_watchpoint implementation. Return 1 if
++ stopped by watchpoint. The watchhi R and W bits indicate the watch
++ register triggered. */
++
++bool
++loongarch_linux_nat_target::stopped_by_watchpoint ()
++{
++ int n;
++ int num_valid;
++
++ if (!loongarch_linux_read_watch_registers (
++ inferior_ptid.lwp (), &watch_readback, &watch_readback_valid, 1))
++ return false;
++
++ num_valid = loongarch_linux_watch_get_num_valid (&watch_readback);
++
++ for (n = 0; n < MAX_DEBUG_REGISTER && n < num_valid; n++)
++ if (loongarch_linux_watch_get_irwstat (&watch_readback, n)
++ & (R_MASK | W_MASK))
++ return true;
++
++ return false;
++}
++
++/* Target to_stopped_data_address implementation. Set the address
++ where the watch triggered (if known). Return 1 if the address was
++ known. */
++
++bool
++loongarch_linux_nat_target::stopped_data_address (CORE_ADDR *paddr)
++{
++ int num_valid, n;
++ if (!loongarch_linux_read_watch_registers (
++ inferior_ptid.lwp (), &watch_readback, &watch_readback_valid, 1))
++ return false;
++
++ num_valid = loongarch_linux_watch_get_num_valid (&watch_readback);
++
++ for (n = 0; n < MAX_DEBUG_REGISTER && n < num_valid; n++)
++ if (loongarch_linux_watch_get_irwstat (&watch_readback, n)
++ & (R_MASK | W_MASK))
++ {
++ CORE_ADDR t_addr, t_mask;
++ int t_irw;
++ struct loongarch_watchpoint *watch;
++
++ t_addr = loongarch_linux_watch_get_addr (&watch_readback, n);
++ t_irw = loongarch_linux_watch_get_irw (&watch_readback, n) & IRW_MASK;
++ t_mask = loongarch_linux_watch_get_mask (&watch_readback, n);
++
++ for (watch = current_watches; watch != NULL; watch = watch->next)
++ {
++ CORE_ADDR addr = watch->addr;
++ CORE_ADDR last_byte = addr + watch->len - 1;
++
++ if ((t_irw & loongarch_linux_watch_type_to_irw (watch->type)) == 0)
++ {
++ /* Different type. */
++ continue;
++ }
++ /* Check for overlap of even a single byte. */
++ if (last_byte >= t_addr && addr <= t_addr + t_mask)
++ {
++ *paddr = addr;
++ return true;
++ }
++ }
++ }
++ return false;
++}
++
++/* Target to_region_ok_for_hw_watchpoint implementation. Return 1 if
++ the specified region can be covered by the watch registers. */
++
++int
++loongarch_linux_nat_target::region_ok_for_hw_watchpoint (CORE_ADDR addr,
++ int len)
++{
++ struct pt_watch_regs dummy_regs;
++ int i;
++
++ if (!loongarch_linux_read_watch_registers (
++ inferior_ptid.lwp (), &watch_readback, &watch_readback_valid, 0))
++ return 0;
++
++ dummy_regs = watch_readback;
++ /* Clear them out. */
++ for (i = 0; i < loongarch_linux_watch_get_num_valid (&dummy_regs); i++)
++ {
++ loongarch_linux_watch_set_addr (&dummy_regs, i, 0);
++ loongarch_linux_watch_set_mask (&dummy_regs, i, 0);
++ loongarch_linux_watch_set_irw (&dummy_regs, i, 0);
++ }
++ return loongarch_linux_watch_try_one_watch (&dummy_regs, addr, len, 0);
++}
++
++/* Write the mirrored watch register values for each thread. */
++
++static int
++write_watchpoint_regs (void)
++{
++ struct lwp_info *lp;
++ int tid;
++
++ ALL_LWPS (lp)
++ {
++ tid = lp->ptid.lwp ();
++ if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror, NULL) == -1)
++ perror_with_name (_ ("Couldn't write debug register"));
++ }
++ return 0;
++}
++
++/* linux_nat_target::low_new_thread implementation. */
++
++void
++loongarch_linux_nat_target::low_new_thread (struct lwp_info *lp)
++{
++ long tid = lp->ptid.lwp ();
++
++ if (!loongarch_linux_read_watch_registers (tid, &watch_readback,
++ &watch_readback_valid, 0))
++ return;
++
++ if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror, NULL) == -1)
++ perror_with_name (_ ("Couldn't write debug register"));
++}
++
++/* Target to_insert_watchpoint implementation. Try to insert a new
++ watch. Return zero on success. */
++
++int
++loongarch_linux_nat_target::insert_watchpoint (CORE_ADDR addr, int len,
++ enum target_hw_bp_type type,
++ struct expression *cond)
++{
++ struct pt_watch_regs regs =
++ {
++ .max_valid = MAX_DEBUG_REGISTER,
++ };
++ struct loongarch_watchpoint *new_watch;
++ struct loongarch_watchpoint **pw;
++
++ int retval;
++
++ if (!loongarch_linux_read_watch_registers (
++ inferior_ptid.lwp (), &watch_readback, &watch_readback_valid, 0))
++ return -1;
++
++ if (len <= 0)
++ return -1;
++
++ regs = watch_readback;
++ /* Add the current watches. */
++ loongarch_linux_watch_populate_regs (current_watches, ®s);
++
++ /* Now try to add the new watch. */
++ if (!loongarch_linux_watch_try_one_watch (
++ ®s, addr, len, loongarch_linux_watch_type_to_irw (type)))
++ return -1;
++
++ /* It fit. Stick it on the end of the list. */
++ new_watch = XNEW (struct loongarch_watchpoint);
++ new_watch->addr = addr;
++ new_watch->len = len;
++ new_watch->type = type;
++ new_watch->next = NULL;
++
++ pw = ¤t_watches;
++ while (*pw != NULL)
++ pw = &(*pw)->next;
++ *pw = new_watch;
++
++ watch_mirror = regs;
++ retval = write_watchpoint_regs ();
++
++ if (show_debug_regs)
++ loongarch_show_dr ("insert_watchpoint", addr, len, type);
++
++ return retval;
++}
++
++/* Target to_remove_watchpoint implementation. Try to remove a watch.
++ Return zero on success. */
++
++int
++loongarch_linux_nat_target::remove_watchpoint (CORE_ADDR addr, int len,
++ enum target_hw_bp_type type,
++ struct expression *cond)
++{
++ int retval;
++ int deleted_one;
++
++ struct loongarch_watchpoint **pw;
++ struct loongarch_watchpoint *w;
++
++ /* Search for a known watch that matches. Then unlink and free
++ it. */
++ deleted_one = 0;
++ pw = ¤t_watches;
++ while ((w = *pw))
++ {
++ if (w->addr == addr && w->len == len && w->type == type)
++ {
++ *pw = w->next;
++ xfree (w);
++ deleted_one = 1;
++ break;
++ }
++ pw = &(w->next);
++ }
++
++ if (!deleted_one)
++ return -1; /* We don't know about it, fail doing nothing. */
++
++ /* At this point watch_readback is known to be valid because we
++ could not have added the watch without reading it. */
++ gdb_assert (watch_readback_valid == 1);
++
++ watch_mirror = watch_readback;
++ loongarch_linux_watch_populate_regs (current_watches, &watch_mirror);
++
++ retval = write_watchpoint_regs ();
++
++ if (show_debug_regs)
++ loongarch_show_dr ("remove_watchpoint", addr, len, type);
++
++ return retval;
++}
++
++/* Insert a hardware-assisted breakpoint at BP_TGT->reqstd_address.
++ Return 0 on success, -1 on failure. */
++
++int
++loongarch_linux_nat_target::insert_hw_breakpoint (
++ struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
++{
++ int ret;
++ CORE_ADDR addr = bp_tgt->placed_address = bp_tgt->reqstd_address;
++ int len = 4;
++ const enum target_hw_bp_type type = hw_execute;
++
++ gdbarch_breakpoint_from_pc (gdbarch, &addr, &len);
++
++ if (show_debug_regs)
++ fprintf_unfiltered (
++ gdb_stdlog, "insert_hw_breakpoint on entry (addr=0x%08lx, len=%d))\n",
++ (unsigned long) addr, len);
++
++ ret = insert_watchpoint (addr, len, type, NULL);
++ return ret;
++}
++
++/* Remove a hardware-assisted breakpoint at BP_TGT->placed_address.
++ Return 0 on success, -1 on failure. */
++
++int
++loongarch_linux_nat_target::remove_hw_breakpoint (
++ struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
++{
++ int ret;
++ CORE_ADDR addr = bp_tgt->placed_address;
++ int len = 4;
++ const enum target_hw_bp_type type = hw_execute;
++
++ gdbarch_breakpoint_from_pc (gdbarch, &addr, &len);
++
++ if (show_debug_regs)
++ fprintf_unfiltered (
++ gdb_stdlog, "remove_hw_breakpoint on entry (addr=0x%08lx, len=%d))\n",
++ (unsigned long) addr, len);
++
++ ret = remove_watchpoint (addr, len, type, NULL);
++
++ return ret;
++}
++
++/* Target to_close implementation. Free any watches and call the
++ super implementation. */
++
++void
++loongarch_linux_nat_target::close ()
++{
++ struct loongarch_watchpoint *w;
++ struct loongarch_watchpoint *nw;
++
++ /* Clean out the current_watches list. */
++ w = current_watches;
++ while (w)
++ {
++ nw = w->next;
++ xfree (w);
++ w = nw;
++ }
++ current_watches = NULL;
++
++ linux_nat_trad_target::close ();
++}
++
++void _initialize_loongarch_linux_nat ();
++void
++_initialize_loongarch_linux_nat ()
++{
++ add_setshow_boolean_cmd (
++ "show-debug-regs", class_maintenance, &show_debug_regs, _ ("\
++Set whether to show variables that mirror the LoongArch debug registers."),
++ _ ("\
++Show whether to show variables that mirror the LoongArch debug registers."),
++ _ ("\
++Use \"on\" to enable, \"off\" to disable.\n\
++If enabled, the debug registers values are shown when GDB inserts\n\
++or removes a hardware breakpoint or watchpoint, and when the inferior\n\
++triggers a breakpoint or watchpoint."),
++ NULL, NULL, &maintenance_set_cmdlist, &maintenance_show_cmdlist);
++
++ linux_target = &the_loongarch_linux_nat_target;
++ add_inf_child_target (&the_loongarch_linux_nat_target);
++}
+diff --git gdb-10.2/gdb/loongarch-linux-tdep.c gdb-10.2/gdb/loongarch-linux-tdep.c
+new file mode 100644
+index 0000000..5daabe3
+--- /dev/null
++++ gdb-10.2/gdb/loongarch-linux-tdep.c
+@@ -0,0 +1,709 @@
++/* Target-dependent code for GNU/Linux LoongArch.
++
++ Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#include "defs.h"
++#include "inferior.h"
++#include "gdbcore.h"
++#include "target.h"
++#include "solib-svr4.h"
++#include "osabi.h"
++#include "loongarch-tdep.h"
++#include "frame.h"
++#include "regcache.h"
++#include "trad-frame.h"
++#include "tramp-frame.h"
++#include "gdbtypes.h"
++#include "objfiles.h"
++#include "solib.h"
++#include "solist.h"
++#include "symtab.h"
++#include "target-descriptions.h"
++#include "loongarch-linux-tdep.h"
++#include "glibc-tdep.h"
++#include "linux-tdep.h"
++#include "xml-syscall.h"
++#include "gdbsupport/gdb_signals.h"
++
++static void
++loongarch_supply_elf_gregset (const struct regset *r,
++ struct regcache *regcache, int regno,
++ const void *gprs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->r && sizeof (loongarch_elf_gregset_t) <= len);
++
++ int regsize = register_size (regcache->arch (), regs->r);
++ const gdb_byte *buf = NULL;
++
++ if (regno == -1)
++ {
++ /* Set $r0 = 0. */
++ regcache->raw_supply_zeroed (regs->r);
++
++ for (int i = 1; i < 32; i++)
++ {
++ buf = (const gdb_byte*)gprs + regsize * i;
++ regcache->raw_supply (regs->r + i, (const void *)buf);
++ }
++
++ /* Size base (orig_a0) = regsize * regs->orig_a0. */
++ buf = (const gdb_byte*)gprs + regsize * regs->orig_a0;
++ regcache->raw_supply (regs->orig_a0, (const void *)buf);
++
++ /* Size base (pc) = regsize * regs->pc. */
++ buf = (const gdb_byte*)gprs + regsize * regs->pc;
++ regcache->raw_supply (regs->pc, (const void *)buf);
++
++ /* Size base (badv) = regsize * regs->badv. */
++ buf = (const gdb_byte*)gprs + regsize * regs->badv;
++ regcache->raw_supply (regs->badv, (const void *)buf);
++ }
++ else if (regs->r == regno)
++ regcache->raw_supply_zeroed (regno);
++ else if ((regs->r < regno && regno < regs->r + 32)
++ || (regs->orig_a0 == regno)
++ || (regs->pc == regno)
++ || (regs->badv == regno))
++ {
++ /* Offset offset (regno) = regsize * (regno - regs->r). */
++ buf = (const gdb_byte*)gprs + regsize * (regno - regs->r);
++ regcache->raw_supply (regno, (const void *)buf);
++ }
++}
++
++static void
++loongarch_fill_elf_gregset (const struct regset *r,
++ const struct regcache *regcache, int regno,
++ void *gprs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->r && sizeof (loongarch_elf_gregset_t) <= len);
++ int regsize = register_size (regcache->arch (), regs->r);
++ gdb_byte *buf = NULL;
++
++ if (regno == -1)
++ {
++ for (int i = 0; i < 32; i++)
++ {
++ buf = (gdb_byte *)gprs + regsize * i;
++ regcache->raw_collect (regs->r + i, (void *)buf);
++ }
++
++ /* Size base (orig_a0) = regsize * regs->orig_a0. */
++ buf = (gdb_byte *)gprs + regsize * regs->orig_a0;
++ regcache->raw_collect (regs->orig_a0, (void *)buf);
++
++ /* Size base (pc) = regsize * regs->pc. */
++ buf = (gdb_byte *)gprs + regsize * regs->pc;
++ regcache->raw_collect (regs->pc, (void *)buf);
++
++ /* Size base (badv) = regsize * regs->badv. */
++ buf = (gdb_byte *)gprs + regsize * regs->badv;
++ regcache->raw_collect (regs->badv, (void *)buf);
++ }
++ else if ((regs->r <= regno && regno < regs->r + 32)
++ ||(regs->orig_a0 == regno)
++ ||(regs->pc == regno)
++ ||(regs->badv == regno))
++ {
++ /* Offset offset (regno) = regsize * (regno - regs->r). */
++ buf = (gdb_byte *)gprs + regsize * (regno - regs->r);
++ regcache->raw_collect (regno, (void *)buf);
++ }
++}
++
++const struct regset loongarch_elf_gregset =
++{
++ NULL,
++ loongarch_supply_elf_gregset,
++ loongarch_fill_elf_gregset,
++};
++
++static void
++loongarch_supply_elf_fpregset (const struct regset *r,
++ struct regcache *regcache, int regno,
++ const void *fprs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->f && sizeof (loongarch_elf_fpregset_t) <= len);
++
++ const gdb_byte *buf = NULL;
++ int fprsize = register_size (regcache->arch (), regs->f);
++ int fccsize = register_size (regcache->arch (), regs->fcc);
++
++ if (regno == -1)
++ {
++ /* 32 fprs. */
++ for (int i = 0; i < 32; i++)
++ {
++ buf = (const gdb_byte *)fprs + fprsize * i;
++ regcache->raw_supply (regs->f + i, (const void *)buf);
++ }
++
++ /* 8 fccs , base (fcc) = 32 * sizeof (fpr). */
++ buf = (const gdb_byte *)fprs + fprsize * 32;
++ for (int i = 0; i < 8; i++)
++ {
++ regcache->raw_supply (regs->fcc + i, (const void *)buf);
++ buf += fccsize;
++ }
++
++ /* Size base (fcsr) = 32 * sizeof (fpr) + 8 * sizeof (fcc). */
++ buf = (const gdb_byte *)fprs + 32 * fprsize + 8 * fccsize;
++ regno = regs->fcsr;
++ }
++ else if (regs->f <= regno && regno < regs->f + 32)
++ {
++ /* Offset offset (regno - f) = (regno - regs->f) * sizeof (fpr). */
++ buf = (const gdb_byte *)fprs + fprsize * (regno - regs->f);
++ }
++ else if (regs->fcc <= regno && regno < regs->fcc + 8)
++ {
++ /* Size base (fcc) + offset (regno - fcc)
++ = 32 * sizeof (fpr) + (regno - regs->fcc) * sizeof (fcc). */
++ buf = (const gdb_byte *)fprs + 32 * fprsize
++ + (regno - regs->fcc) * fccsize;
++ }
++ else if (regs->fcsr == regno)
++ {
++ /* Size base (fcsr) = 32 * sizeof (fpr) + 8 * sizeof (fcc). */
++ buf = (const gdb_byte *)fprs + 32 * fprsize + 8 * fccsize;
++ }
++ else
++ {
++ return;
++ }
++
++ /* Supply register. */
++ regcache->raw_supply (regno, (const void *)buf);
++}
++
++static void
++loongarch_fill_elf_fpregset (const struct regset *r,
++ const struct regcache *regcache, int regno,
++ void *fprs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->f && sizeof (loongarch_elf_fpregset_t) <= len);
++ gdb_byte *buf = NULL;
++ int fprsize = register_size (regcache->arch (), regs->f);
++ int fccsize = register_size (regcache->arch (), regs->fcc);
++
++ if (regno == -1)
++ {
++ /* 32 fprs. */
++ for (int i = 0; i < 32; i++)
++ {
++ buf = (gdb_byte *)fprs + fprsize * i;
++ regcache->raw_collect (regs->f + i, (void *)buf);
++ }
++
++ /* 8 fccs , base (fcc) = 32 * sizeof (fpr). */
++ buf = (gdb_byte *)fprs + fprsize * 32;
++ for (int i = 0; i < 8; i++)
++ {
++ regcache->raw_collect (regs->fcc + i, (void *)buf);
++ buf += fccsize;
++ }
++
++ /* Size base (fcsr) = 32 * sizeof (fpr) + 8 * sizeof (fcc). */
++ buf = (gdb_byte *)fprs + fprsize * 32 + fccsize * 8;
++ regno = regs->fcsr;
++ }
++ else if (regs->f <= regno && regno < regs->f + 32)
++ {
++ /* Offset offset (regno - f) = (regno - regs->f) * sizeof (fpr). */
++ buf = (gdb_byte *)fprs + fprsize * (regno - regs->f);
++ }
++ else if (regs->fcc <= regno && regno < regs->fcc + 8)
++ {
++ /* Size base (fcc) + offset (regno - fcc)
++ = 32 * sizeof (fpr) + (regno - regs->fcc) * sizeof (fcc). */
++ buf = (gdb_byte *)fprs + 32 * fprsize + (regno - regs->fcc) * fccsize;
++ }
++ else if (regs->fcsr == regno)
++ {
++ /* Size base (fcsr) = 32 * sizeof (fpr) + 8 * sizeof (fcc). */
++ buf = (gdb_byte *)fprs + 32 * fprsize + 8 * fccsize;
++ }
++ else
++ {
++ return;
++ }
++
++ /* Supply register. */
++ regcache->raw_collect (regno, (void *)buf);
++}
++
++const struct regset loongarch_elf_fpregset =
++{
++ NULL,
++ loongarch_supply_elf_fpregset,
++ loongarch_fill_elf_fpregset,
++};
++
++static void
++loongarch_supply_elf_cpucfgregset (const struct regset *r,
++ struct regcache *regcache, int regno,
++ const void *cpucfgs, size_t len)
++{
++}
++
++static void
++loongarch_fill_elf_cpucfgregset (const struct regset *r,
++ const struct regcache *regcache, int regno,
++ void *cpucfgs, size_t len)
++{
++ ULONGEST xfered_len;
++ target_xfer_partial (current_inferior ()->top_target (),
++ /* current_top_target (),*/ TARGET_OBJECT_LARCH,
++ "cpucfg", (gdb_byte *) cpucfgs, NULL, 0, len,
++ &xfered_len);
++ memset ((gdb_byte *) cpucfgs + xfered_len, 0, len - xfered_len);
++}
++
++const struct regset loongarch_elf_cpucfgregset =
++{
++ NULL,
++ loongarch_supply_elf_cpucfgregset,
++ loongarch_fill_elf_cpucfgregset,
++};
++
++static void
++loongarch_supply_elf_lbtregset (const struct regset *r,
++ struct regcache *regcache, int regno,
++ const void *lbtrs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->scr && sizeof (loongarch_elf_lbtregset_t) <= len);
++
++ const gdb_byte *buf = NULL;
++ int scrsize = register_size (regcache->arch (), regs->scr);
++ int efsize = register_size (regcache->arch (), regs->EFLAG);
++
++ if (regno == -1)
++ {
++ /* 4 scrs. */
++ for (int i = 0; i < 4; i++)
++ {
++ buf = (const gdb_byte *)lbtrs + scrsize * i;
++ regcache->raw_supply (regs->scr + i, (const void *)buf);
++ }
++
++ /* Size base (EFLAG) = 4 * sizeof (scr). */
++ buf = (const gdb_byte *)lbtrs + scrsize * 4;
++ regcache->raw_supply (regs->EFLAG, (const void *)buf);
++
++ /* Size base (x86_top) = 4 * sizeof (scr) + sizeof (EFLAG). */
++ buf = (const gdb_byte *)lbtrs + scrsize * 4 + efsize;
++ regno = regs->x86_top;
++ }
++ else if (regs->scr <= regno && regno < regs->scr + 4)
++ /* Offset offset (EFLAG) = sizeof (scr) * (regno - regs->scr). */
++ buf = (const gdb_byte *)lbtrs + scrsize * (regno - regs->scr);
++ else if (regs->EFLAG == regno)
++ /* Size base (EFLAG) = 4 * sizeof (scr). */
++ buf = (const gdb_byte *)lbtrs + scrsize * 4;
++ else if (regs->x86_top == regno)
++ {
++ /* Size base (x86_top) = 4 * sizeof (scr) + sizeof (EFLAG). */
++ buf = (const gdb_byte *)lbtrs + scrsize * 4 + efsize;
++ }
++ else
++ {
++ return;
++ }
++
++ regcache->raw_supply (regno, (const void *)buf);
++}
++
++static void
++loongarch_fill_elf_lbtregset (const struct regset *r,
++ const struct regcache *regcache, int regno,
++ void *lbtrs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->scr && sizeof (loongarch_elf_lbtregset_t) <= len);
++
++ gdb_byte *buf = NULL;
++ int scrsize = register_size (regcache->arch (), regs->scr);
++ int efsize = register_size (regcache->arch (), regs->EFLAG);
++
++ if (regno == -1)
++ {
++
++ /* 4 scrs. */
++ for (int i = 0; i < 4; i++)
++ {
++ buf = (gdb_byte *)lbtrs + scrsize * i;
++ regcache->raw_collect (regs->scr + i, (void *)buf);
++ }
++
++ /* Size base (EFLAG) = 4 * sizeof (scr). */
++ buf = (gdb_byte *)lbtrs + scrsize * 4;
++ regcache->raw_collect (regs->EFLAG, (void *)buf);
++
++ /* Size base (x86_top) = 4 * sizeof (scr) + sizeof (EFLAG). */
++ buf = (gdb_byte *)lbtrs + scrsize * 4 + efsize;
++ regno = regs->x86_top;
++ }
++ else if (regs->scr <= regno && regno < regs->scr + 4)
++ /* Offset offset (EFLAG) = sizeof (scr) * (regno - regs->scr). */
++ buf = (gdb_byte *)lbtrs + scrsize * (regno - regs->scr);
++ else if (regs->EFLAG == regno)
++ /* Size base (EFLAG) = 4 * sizeof (scr). */
++ buf = (gdb_byte *)lbtrs + scrsize * 4;
++ else if (regs->x86_top == regno)
++ /* Size base (x86_top) = 4 * sizeof (scr) + sizeof (EFLAG). */
++ buf = (gdb_byte *)lbtrs + scrsize * 4 + efsize;
++ else
++ {
++ return;
++ }
++
++ regcache->raw_collect (regno, (void *)buf);
++}
++
++const struct regset loongarch_elf_lbtregset =
++{
++ NULL,
++ loongarch_supply_elf_lbtregset,
++ loongarch_fill_elf_lbtregset,
++};
++
++static void
++loongarch_supply_elf_lsxregset (const struct regset *r,
++ struct regcache *regcache, int regno,
++ const void *lsxrs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->vr && sizeof (loongarch_elf_lsxregset_t) <= len);
++
++ const gdb_byte *buf = NULL;
++ int regsize = register_size (regcache->arch (), regs->vr);
++
++ if (regno == -1)
++ {
++ for (int i = 0; i < 32; i++)
++ {
++ buf = (const gdb_byte *)lsxrs + regsize * i;
++ regcache->raw_supply (regs->vr + i, (const void *)buf);
++ }
++ }
++ else if (regs->vr <= regno && regno < regs->vr + 32)
++ {
++ buf = (const gdb_byte *)lsxrs + regsize * (regno - regs->vr);
++ regcache->raw_supply (regno, (const void *)buf);
++ }
++}
++
++static void
++loongarch_fill_elf_lsxregset (const struct regset *r,
++ const struct regcache *regcache, int regno,
++ void *lsxrs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->vr && sizeof (loongarch_elf_lsxregset_t) <= len);
++
++ gdb_byte *buf = NULL;
++ int regsize = register_size (regcache->arch (), regs->vr);
++
++ if (regno == -1)
++ {
++ for (int i = 0; i < 32; i++)
++ {
++ buf = (gdb_byte *)lsxrs + regsize * i;
++ regcache->raw_collect (regs->vr + i, (void *)buf);
++ }
++ }
++ else if (regs->vr <= regno && regno < regs->vr + 32)
++ {
++ buf = (gdb_byte *)lsxrs + regsize * (regno - regs->vr);
++ regcache->raw_collect (regno, (void *)buf);
++ }
++}
++
++const struct regset loongarch_elf_lsxregset =
++{
++ NULL,
++ loongarch_supply_elf_lsxregset,
++ loongarch_fill_elf_lsxregset,
++};
++
++static void
++loongarch_supply_elf_lasxregset (const struct regset *r,
++ struct regcache *regcache, int regno,
++ const void *lasxrs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->xr && sizeof (loongarch_elf_lasxregset_t) <= len);
++
++ const gdb_byte *buf = NULL;
++ int regsize = register_size (regcache->arch (), regs->xr);
++
++ if (regno == -1)
++ {
++ for (int i = 0; i < 32; i++)
++ {
++ buf = (const gdb_byte *)lasxrs + regsize * i;
++ regcache->raw_supply (regs->xr + i, (const void *)buf);
++ }
++ }
++ else if (regs->xr <= regno && regno < regs->xr + 32)
++ {
++ buf = (const gdb_byte *)lasxrs + regsize * (regno - regs->xr);
++ regcache->raw_supply (regno, (const void *)buf);
++ }
++}
++
++static void
++loongarch_fill_elf_lasxregset (const struct regset *r,
++ const struct regcache *regcache, int regno,
++ void *lasxrs, size_t len)
++{
++ auto regs = &gdbarch_tdep (regcache->arch ())->regs;
++ gdb_assert (0 <= regs->xr && sizeof (loongarch_elf_lasxregset_t) <= len);
++
++ gdb_byte *buf = NULL;
++ int regsize = register_size (regcache->arch (), regs->xr);
++
++ if (regno == -1)
++ {
++ for (int i = 0; i < 32; i++)
++ {
++ buf = (gdb_byte *)lasxrs + regsize * i;
++ regcache->raw_collect (regs->xr + i, (void *)buf);
++ }
++ }
++ else if (regs->xr <= regno && regno < regs->xr + 32)
++ {
++ buf = (gdb_byte *)lasxrs + regsize * (regno - regs->xr);
++ regcache->raw_collect (regno, (void *)buf);
++ }
++}
++
++const struct regset loongarch_elf_lasxregset =
++{
++ NULL,
++ loongarch_supply_elf_lasxregset,
++ loongarch_fill_elf_lasxregset,
++};
++
++static void
++loongarch_linux_iterate_over_regset_sections (
++ struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data,
++ const struct regcache *regcache)
++{
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ if (0 <= regs->r)
++ cb (".reg", sizeof (loongarch_elf_gregset_t),
++ sizeof (loongarch_elf_gregset_t), &loongarch_elf_gregset, NULL,
++ cb_data);
++ if (0 <= regs->f)
++ cb (".reg2", sizeof (loongarch_elf_fpregset_t),
++ sizeof (loongarch_elf_fpregset_t), &loongarch_elf_fpregset, NULL,
++ cb_data);
++ do
++ {
++ uint32_t t;
++ ULONGEST xfered_len;
++ if (target_xfer_partial (current_inferior ()->top_target (),
++ /* current_top_target (),*/ TARGET_OBJECT_LARCH,
++ "cpucfg", (gdb_byte *) &t, NULL, 0, sizeof (t),
++ &xfered_len) != TARGET_XFER_OK)
++ break;
++ cb (".reg-loongarch-cpucfg", 64 * 4, 64 * 4, &loongarch_elf_cpucfgregset,
++ "LoongArch CPU config", cb_data);
++ }
++ while (0);
++ if (0 <= regs->scr)
++ cb (".reg-loongarch-lbt", sizeof (loongarch_elf_lbtregset_t),
++ sizeof (loongarch_elf_lbtregset_t), &loongarch_elf_lbtregset,
++ "LoongArch Binary Translation", cb_data);
++ if (0 <= regs->vr)
++ cb (".reg-loongarch-lsx", sizeof (loongarch_elf_lsxregset_t),
++ sizeof (loongarch_elf_lsxregset_t), &loongarch_elf_lsxregset,
++ "LoongArch SIMD Extension", cb_data);
++ if (0 <= regs->xr)
++ cb (".reg-loongarch-lasx", sizeof (loongarch_elf_lasxregset_t),
++ sizeof (loongarch_elf_lasxregset_t), &loongarch_elf_lasxregset,
++ "LoongArch Advanced SIMD Extension", cb_data);
++}
++
++static const struct target_desc *
++loongarch_linux_core_read_description (struct gdbarch *gdbarch,
++ struct target_ops *target, bfd *abfd)
++{
++ int rlen, flen, fpu64, lbt, lsx, lasx;
++
++ rlen = 64;
++
++ fpu64 = !!bfd_get_section_by_name (abfd, ".reg2");
++ lbt = !!bfd_get_section_by_name (abfd, ".reg-loongarch-lbt");
++ lsx = !!bfd_get_section_by_name (abfd, ".reg-loongarch-lsx");
++ lasx = !!bfd_get_section_by_name (abfd, ".reg-loongarch-lasx");
++
++ if (fpu64)
++ flen = 64;
++ else
++ flen = 0;
++
++ return loongarch_create_target_description (rlen, flen, lbt, lsx, lasx);
++}
++
++/* The RT signal frames look like this:
++ struct rt_sigframe {
++ struct siginfo rs_info;
++ struct ucontext rs_uctx;
++ };
++
++ struct ucontext {
++ unsigned long uc_flags;
++ struct ucontext *uc_link;
++ stack_t uc_stack;
++ sigset_t uc_sigmask;
++ _u8 __unused[1024 / 8 - sizeof(sigset_t)];
++ struct sigcontext uc_mcontext;
++ };
++}; */
++
++#define RTSIGFRAME_SIGINFO_SIZE 128
++#define UCONTEXT_SIGCONTEXT_OFFSET 176
++#define RTSIGFRAME_SIGCONTEXT_OFFSET (RTSIGFRAME_SIGINFO_SIZE \
++ + UCONTEXT_SIGCONTEXT_OFFSET)
++
++static void
++loongarch_linux_lp64_sigframe_init (const struct tramp_frame *self,
++ struct frame_info *this_frame,
++ struct trad_frame_cache *this_cache,
++ CORE_ADDR func)
++{
++ struct gdbarch *gdbarch = get_frame_arch (this_frame);
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ CORE_ADDR frame_sp = get_frame_sp (this_frame);
++
++ CORE_ADDR sigcontext_base = frame_sp + RTSIGFRAME_SIGCONTEXT_OFFSET;
++ int i;
++
++ trad_frame_set_reg_addr (this_cache, regs->pc, sigcontext_base);
++ for (i = 0; i < 32; i++)
++ trad_frame_set_reg_addr (this_cache, regs->r + i,
++ sigcontext_base + 8 + i * 8);
++
++ trad_frame_set_id (this_cache, frame_id_build (frame_sp, func));
++}
++
++static const struct tramp_frame loongarch_linux_lp64_rt_sigframe =
++{
++ SIGTRAMP_FRAME,
++ 4,
++ { /* From $kernel/arch/loongarch/vdso/sigreturn.S. */
++ /* ori $r11, $r0, 0x8b(__NR_rt_sigreturn) */
++ { 0x03822c0b, ULONGEST_MAX },
++ { 0x002b0000, ULONGEST_MAX }, /* syscall 0 */
++ { TRAMP_SENTINEL_INSN, ULONGEST_MAX } },
++ loongarch_linux_lp64_sigframe_init,
++ NULL
++};
++
++/* Return the current system call's number present in the
++ a7 register. When the function fails, it returns -1. */
++
++static LONGEST
++loongarch_linux_get_syscall_number (struct gdbarch *gdbarch,
++ thread_info *thread)
++{
++ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
++ auto regs = &tdep->regs;
++ struct regcache *regcache = get_thread_regcache (thread);
++ LONGEST ret;
++
++ if ((EF_LOONGARCH_IS_LP64 (tdep->ef_abi))
++ && (REG_VALID == regcache_cooked_read_signed (regcache, regs->r + 11, &ret)))
++ return ret;
++
++ return -1;
++}
++
++static CORE_ADDR
++loongarch_linux_syscall_next_pc (struct frame_info *frame)
++{
++ struct gdbarch *gdbarch = get_frame_arch (frame);
++ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
++ auto regs = &tdep->regs;
++ ULONGEST a7 = get_frame_register_unsigned (frame, regs->r + 11);
++
++ /* If we are about to make a sigreturn syscall, use the unwinder to
++ decode the signal frame. */
++ if ((EF_LOONGARCH_IS_LP64 (tdep->ef_abi))
++ && (a7 == 0x8b /* LP64: __NR_rt_sigreturn. */))
++ return frame_unwind_caller_pc (get_current_frame ());
++
++ return -1;
++}
++
++static void
++loongarch_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
++{
++ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
++
++ linux_init_abi (info, gdbarch); /* FIXME displaced step support. */
++
++ if (EF_LOONGARCH_IS_ILP32 (tdep->ef_abi))
++ set_solib_svr4_fetch_link_map_offsets (
++ gdbarch, svr4_ilp32_fetch_link_map_offsets);
++
++ else if (EF_LOONGARCH_IS_LP64 (tdep->ef_abi))
++ {
++ set_solib_svr4_fetch_link_map_offsets (gdbarch,
++ svr4_lp64_fetch_link_map_offsets);
++ tramp_frame_prepend_unwinder (gdbarch,
++ &loongarch_linux_lp64_rt_sigframe);
++ tdep->syscall_next_pc = loongarch_linux_syscall_next_pc;
++
++ set_gdbarch_get_syscall_number (gdbarch,
++ loongarch_linux_get_syscall_number);
++ }
++
++ /* GNU/Linux uses the dynamic linker included in the GNU C Library. */
++ set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
++
++ /* Enable TLS support. */
++ set_gdbarch_fetch_tls_load_module_address (gdbarch,
++ svr4_fetch_objfile_link_map);
++
++ set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT);
++
++ /* Core file support. */
++ set_gdbarch_iterate_over_regset_sections (
++ gdbarch, loongarch_linux_iterate_over_regset_sections);
++ set_gdbarch_core_read_description (gdbarch,
++ loongarch_linux_core_read_description);
++}
++
++void _initialize_loongarch_linux_tdep ();
++void
++_initialize_loongarch_linux_tdep ()
++{
++ gdbarch_register_osabi (bfd_arch_loongarch, bfd_mach_loongarch32,
++ GDB_OSABI_LINUX, loongarch_linux_init_abi);
++ gdbarch_register_osabi (bfd_arch_loongarch, bfd_mach_loongarch64,
++ GDB_OSABI_LINUX, loongarch_linux_init_abi);
++}
+diff --git gdb-10.2/gdb/loongarch-linux-tdep.h gdb-10.2/gdb/loongarch-linux-tdep.h
+new file mode 100644
+index 0000000..bb70043
+--- /dev/null
++++ gdb-10.2/gdb/loongarch-linux-tdep.h
+@@ -0,0 +1,48 @@
++/* GNU/Linux on LoongArch target support, prototypes.
++
++ Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#ifndef LOONGARCH_LINUX_TDEP_H
++#define LOONGARCH_LINUX_TDEP_H
++
++#include <regset.h>
++
++#define ELF_NGREG 45
++#define ELF_NFPREG 34
++
++typedef unsigned long loongarch_elf_gregset_t[ELF_NGREG];
++extern const struct regset loongarch_elf_gregset;
++
++typedef double loongarch_elf_fpregset_t[ELF_NFPREG];
++extern const struct regset loongarch_elf_fpregset;
++
++/* Regset variable size. */
++extern const struct regset loongarch_elf_cpucfg;
++
++/* 4 SCRs + 4-byte EFLAG + 1-byte x86_top. */
++typedef uint64_t loongarch_elf_lbtregset_t[5];
++extern const struct regset loongarch_elf_lbtregset;
++
++typedef uint64_t loongarch_elf_lsxregset_t[32 * 2];
++extern const struct regset loongarch_elf_lsxregset;
++
++typedef uint64_t loongarch_elf_lasxregset_t[32 * 4];
++extern const struct regset loongarch_elf_lasxregset;
++
++#endif
+diff --git gdb-10.2/gdb/loongarch-tdep.c gdb-10.2/gdb/loongarch-tdep.c
+new file mode 100644
+index 0000000..422c80b
+--- /dev/null
++++ gdb-10.2/gdb/loongarch-tdep.c
+@@ -0,0 +1,1926 @@
++/* Target-dependent code for GNU/Linux LoongArch.
++
++ Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#include "defs.h"
++#include "frame.h"
++#include "inferior.h"
++#include "symtab.h"
++#include "value.h"
++#include "gdbcmd.h"
++#include "language.h"
++#include "gdbcore.h"
++#include "symfile.h"
++#include "objfiles.h"
++#include "gdbtypes.h"
++#include "target.h"
++#include "arch-utils.h"
++#include "regcache.h"
++#include "osabi.h"
++#include "block.h"
++#include "reggroups.h"
++#include "elf-bfd.h"
++#include "symcat.h"
++#include "dis-asm.h"
++#include "frame-unwind.h"
++#include "frame-base.h"
++#include "trad-frame.h"
++#include "infcall.h"
++#include "floatformat.h"
++#include "remote.h"
++#include "target-descriptions.h"
++#include "dwarf2/frame.h"
++#include "user-regs.h"
++#include "valprint.h"
++#include "gdbsupport/common-defs.h"
++#include "cli/cli-decode.h"
++#include "observable.h"
++#include "loongarch-tdep.h"
++#include "arch/loongarch.h"
++
++#include <algorithm>
++
++/* Figure out where the longjmp will land.
++ We expect the first arg to be a pointer to the jmp_buf structure
++ from which we extract the pc (LOONGARCH_JB_PC) that we will land
++ at. The pc is copied into PC. This routine returns 1 on
++ success. */
++#define LOONGARCH_JB_PC 0
++
++static int
++loongarch_rlen (struct gdbarch *gdbarch)
++{
++ if (EF_LOONGARCH_IS_LP64 (gdbarch_tdep (gdbarch)->ef_abi))
++ return 64;
++ else if (EF_LOONGARCH_IS_ILP32 (gdbarch_tdep (gdbarch)->ef_abi))
++ return 32;
++ else
++ gdb_assert_not_reached ("unknown ABI");
++ return 0;
++}
++
++static insn_t
++loongarch_fetch_instruction (CORE_ADDR addr, int *errp)
++{
++ size_t insnlen = loongarch_insn_length (0);
++ gdb_byte buf[insnlen];
++ int err;
++ ULONGEST ret;
++
++ err = target_read_memory (addr, buf, insnlen);
++ if (errp != NULL)
++ *errp = err;
++ if (err != 0)
++ {
++ if (errp == NULL)
++ memory_error (TARGET_XFER_E_IO, addr);
++ return 0;
++ }
++ ret = extract_unsigned_integer (buf, insnlen, BFD_ENDIAN_LITTLE);
++ return ret;
++}
++
++static int
++loongarch_insn_is_branch_and_must_branch (insn_t insn)
++{
++ if ((insn & 0xfc000000) == 0x4c000000 /* jirl r0:5,r5:5,s10:16<<2 */
++ || (insn & 0xfc000000) == 0x50000000 /* b sb0:10|10:16<<2 */
++ || (insn & 0xfc000000) == 0x54000000) /* bl sb0:10|10:16<<2 */
++ return 1;
++ return 0;
++}
++
++static int
++loongarch_insn_is_branch (insn_t insn)
++{
++ if (loongarch_insn_is_branch_and_must_branch (insn)
++ || (insn & 0xfc000000) == 0x40000000 /* beqz r5:5,sb0:5|10:16<<2 */
++ || (insn & 0xfc000000) == 0x44000000 /* bnez r5:5,sb0:5|10:16<<2 */
++ || (insn & 0xfc000300) == 0x48000000 /* bceqz c5:3,sb0:5|10:16<<2 */
++ || (insn & 0xfc000300) == 0x48000100 /* bcnez c5:3,sb0:5|10:16<<2 */
++ || (insn & 0xfc000000) == 0x58000000 /* beq r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x5c000000 /* bne r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x60000000 /* blt r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x64000000 /* bge r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x68000000 /* bltu r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x6c000000) /* bgeu r5:5,r0:5,sb10:16<<2 */
++ return 1;
++ return 0;
++}
++
++static CORE_ADDR
++loongarch_next_pc_if_branch (struct regcache *regcache, CORE_ADDR cur_pc,
++ insn_t insn)
++{
++ struct gdbarch *gdbarch = regcache->arch ();
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ CORE_ADDR next_pc;
++
++ if ((insn & 0xfc000000) == 0x40000000 /* beqz r5:5,sb0:5|10:16<<2 */
++ || (insn & 0xfc000000) == 0x44000000 /* bnez r5:5,sb0:5|10:16<<2 */
++ || (insn & 0xfc000300) == 0x48000000 /* bceqz c5:3,sb0:5|10:16<<2 */
++ || (insn & 0xfc000300) == 0x48000100) /* bcnez c5:3,sb0:5|10:16<<2 */
++ next_pc = cur_pc + loongarch_decode_imm ("0:5|10:16<<2", insn, 1);
++ else if ((insn & 0xfc000000) == 0x4c000000) /* jirl r0:5,r5:5,s10:16<<2 */
++ next_pc = regcache_raw_get_signed (
++ regcache, regs->r + loongarch_decode_imm ("5:5", insn, 0))
++ + loongarch_decode_imm ("10:16<<2", insn, 1);
++ else if ((insn & 0xfc000000) == 0x50000000 /* b sb0:10|10:16<<2 */
++ || (insn & 0xfc000000) == 0x54000000) /* bl sb0:10|10:16<<2 */
++ next_pc = cur_pc + loongarch_decode_imm ("0:10|10:16<<2", insn, 1);
++ else if ((insn & 0xfc000000) == 0x58000000 /* beq r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x5c000000 /* bne r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x60000000 /* blt r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x64000000 /* bge r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000) == 0x68000000 /* bltu r5:5,r0:5,sb10:16<<2 */
++ || (insn & 0xfc000000)
++ == 0x6c000000) /* bgeu r5:5,r0:5,sb10:16<<2 */
++ next_pc = cur_pc + loongarch_decode_imm ("10:16<<2", insn, 1);
++ else
++ gdb_assert_not_reached ("I don't know what branch is this");
++
++ return next_pc;
++}
++
++/* Checks for an atomic sequence of instructions beginning with a LL/LLD
++ instruction and ending with a SC/SCD instruction. If such a sequence
++ is found, attempt to step through it. A breakpoint is placed at the end of
++ the sequence. */
++
++static std::vector<CORE_ADDR>
++loongarch_deal_with_atomic_sequence (struct regcache *regcache, CORE_ADDR pc)
++{
++ struct gdbarch *gdbarch = regcache->arch ();
++ CORE_ADDR next_pc;
++ std::vector<CORE_ADDR> next_pcs;
++ insn_t insn = loongarch_fetch_instruction (pc, NULL);
++ size_t insnlen = loongarch_insn_length (insn);
++ int i, atomic_sequence_length, found_atomic_sequence_endpoint;
++
++ if ((insn & 0xff000000) != 0x20000000 /* ll.w */
++ && (insn & 0xff000000) != 0x22000000) /* ll.d */
++ return {};
++
++ if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog,
++ "Single step: PC: %s OK, I found ll\\.[wd] here. It's "
++ "atomic sequence?\n",
++ paddress (gdbarch, pc));
++
++ atomic_sequence_length = 30; /* Magic. */
++ found_atomic_sequence_endpoint = 0;
++ for (pc += insnlen, i = 0; i < atomic_sequence_length; pc += insnlen, i++)
++ {
++ insn = loongarch_fetch_instruction (pc, NULL);
++ insnlen = loongarch_insn_length (insn);
++
++ if (loongarch_insn_is_branch_and_must_branch (insn))
++ {
++ if (loongarch_debug)
++ fprintf_unfiltered (
++ gdb_stdlog,
++ "Single step: PC: %s Must branch here. Treat it normally.\n",
++ paddress (gdbarch, pc));
++ break;
++ }
++ else if (loongarch_insn_is_branch (insn))
++ {
++ next_pc = loongarch_next_pc_if_branch (regcache, pc, insn);
++
++ if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog,
++ "Single step: PC: %s May branch inside and "
++ "target is %s. Breakpoint there.\n",
++ paddress (gdbarch, pc),
++ paddress (gdbarch, next_pc));
++
++ next_pcs.push_back (next_pc);
++ }
++ else if ((insn & 0xff000000) == 0x21000000 /* sc.w */
++ || (insn & 0xff000000) == 0x23000000) /* sc.d */
++ {
++ found_atomic_sequence_endpoint = 1;
++ next_pc = pc + insnlen;
++
++ if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog,
++ "Single step: PC: %s I found sc\\.[wd] and "
++ "atomic sequence ends at here.\n"
++ "Breakpoint next pc: %s.\n",
++ paddress (gdbarch, pc),
++ paddress (gdbarch, next_pc));
++
++ next_pcs.push_back (next_pc);
++ break;
++ }
++ }
++
++ if (!found_atomic_sequence_endpoint)
++ {
++ if (loongarch_debug)
++ fprintf_unfiltered (
++ gdb_stdlog,
++ "Single step: PC: %s Not ends with sc\\.[wd] in %d insns?\n"
++ "Treat it as not atomic sequence.\n",
++ paddress (gdbarch, pc), atomic_sequence_length);
++
++ return {};
++ }
++
++ return next_pcs;
++}
++
++/* Implement LoongArch software single step. */
++
++std::vector<CORE_ADDR>
++loongarch_software_single_step (struct regcache *regcache);
++std::vector<CORE_ADDR>
++loongarch_software_single_step (struct regcache *regcache)
++{
++ struct gdbarch *gdbarch = regcache->arch ();
++ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
++ CORE_ADDR pc = regcache_read_pc (regcache);
++ std::vector<CORE_ADDR> next_pcs
++ = loongarch_deal_with_atomic_sequence (regcache, pc);
++
++ if (!next_pcs.empty ())
++ return next_pcs;
++
++ insn_t insn = loongarch_fetch_instruction (pc, NULL);
++ size_t insnlen = loongarch_insn_length (insn);
++ CORE_ADDR next = pc + insnlen;
++
++ if ((insn & 0xffff8000) == 0x002b0000 && tdep->syscall_next_pc)
++ {
++ CORE_ADDR syscall_next = tdep->syscall_next_pc (get_current_frame ());
++ if (syscall_next != -1)
++ {
++ if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog,
++ "PC: %s Syscall found. Next pc is %s.\n",
++ paddress (gdbarch, pc),
++ paddress (gdbarch, syscall_next));
++ return {syscall_next};
++ }
++ }
++
++ if (loongarch_insn_is_branch (insn))
++ {
++ CORE_ADDR branch_tgt = loongarch_next_pc_if_branch (regcache, pc, insn);
++ if (loongarch_debug)
++ fprintf_unfiltered (
++ gdb_stdlog, "PC: %s Next pc is %s if branch, %s for non-branch.\n",
++ paddress (gdbarch, pc), paddress (gdbarch, branch_tgt),
++ paddress (gdbarch, next));
++ return {next, branch_tgt};
++ }
++ else
++ {
++ if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog, "PC: %s Next pc is %s.\n",
++ paddress (gdbarch, pc), paddress (gdbarch, next));
++ return {next};
++ }
++}
++
++/* Callback function for user_reg_add. */
++
++static struct value *
++value_of_loongarch_user_reg (struct frame_info *frame, const void *baton)
++{
++ return value_of_register ((long long) baton, frame);
++}
++
++/* Implement the register_name gdbarch method. */
++
++static const char *
++loongarch_register_name (struct gdbarch *gdbarch, int regnum)
++{
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++
++ if ((0 <= regs->r && regs->r <= regnum && regnum < regs->r + 32)
++ && (EF_LOONGARCH_IS_LP64 (gdbarch_tdep (gdbarch)->ef_abi)))
++ return loongarch_r_lp64_name[regnum - regs->r] + 1;
++
++ else if ((0 <= regs->f && regs->f <= regnum && regnum < regs->f + 32)
++ && (EF_LOONGARCH_IS_LP64 (gdbarch_tdep (gdbarch)->ef_abi)))
++ return loongarch_f_lp64_name[regnum - regs->f] + 1;
++
++ return tdesc_register_name (gdbarch, regnum);
++}
++
++/* Analyze the function prologue from START_PC to LIMIT_PC. Builds
++ the associated FRAME_CACHE if not null.
++ Return the address of the first instruction past the prologue. */
++
++static CORE_ADDR
++loongarch_scan_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc,
++ CORE_ADDR limit_pc, struct frame_info *this_frame,
++ struct trad_frame_cache *this_cache)
++{
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ int rlen_is_64b = (loongarch_rlen (gdbarch) == 64);
++
++ CORE_ADDR cur_pc, prologue_end = 0;
++ insn_t insn;
++ size_t insnlen;
++
++ int sp = regs->sp - regs->r;
++
++ long frame_offset = 0;
++ int non_prologue_insns = 0;
++ int cfa_unknown = 0;
++
++ /* Try to trace li. */
++ int64_t r_value[32] = {0};
++ int r_value_known[32] = {1, 0};
++
++ long r_cfa_offset[32] = {0};
++ int r_cfa_offset_p[32] = {0};
++
++ long f_cfa_offset[32] = {0};
++ int f_cfa_offset_p[32] = {0};
++
++ if (start_pc + 80 < limit_pc)
++ limit_pc = start_pc + 80;
++
++ for (cur_pc = start_pc; cur_pc < limit_pc; cur_pc += insnlen)
++ {
++ int rd, rj, rk;
++ int64_t si12, si20, si14;
++
++ insn = loongarch_fetch_instruction (cur_pc, NULL);
++ insnlen = loongarch_insn_length (insn);
++
++ rd = loongarch_decode_imm ("0:5", insn, 0);
++ rj = loongarch_decode_imm ("5:5", insn, 0);
++ rk = loongarch_decode_imm ("10:5", insn, 0);
++ si12 = loongarch_decode_imm ("10:12", insn, 1);
++ si20 = loongarch_decode_imm ("5:20", insn, 1);
++ si14 = loongarch_decode_imm ("10:14<<2", insn, 1);
++
++ if ((((insn & 0xffc00000) == 0x02800000 /* addi.w sp,sp,si12 */
++ && !rlen_is_64b)
++ || ((insn & 0xffc00000) == 0x02c00000 /* addi.d sp,sp,si12 */
++ && rlen_is_64b))
++ && rd == sp && rj == sp)
++ {
++ if (si12 < 0)
++ frame_offset -= si12;
++ else
++ /* Exit loop if a positive stack adjustment is found, which
++ usually means that the stack cleanup code in the function
++ epilogue is reached. */
++ break;
++ prologue_end = cur_pc + insnlen;
++ }
++ else if ((((insn & 0xffc00000) == 0x29800000 /* st.w rd,sp,si12 */
++ && !rlen_is_64b)
++ || ((insn & 0xffc00000) == 0x29c00000 /* st.d rd,sp,si12 */
++ && rlen_is_64b))
++ && rj == sp)
++ {
++ if (!r_cfa_offset_p[rd] && !r_value_known[rd])
++ r_cfa_offset[rd] = si12 - frame_offset, r_cfa_offset_p[rd] = 1;
++ prologue_end = cur_pc + insnlen;
++ }
++ else if ((((insn & 0xff000000) == 0x25000000 /* stptr.w rd,sp,si14 */
++ && !rlen_is_64b)
++ || ((insn & 0xff000000) == 0x27000000 /* stptr.d rd,sp,si14 */
++ && rlen_is_64b))
++ && rj == sp)
++ {
++ if (!r_cfa_offset_p[rd] && !r_value_known[rd])
++ r_cfa_offset[rd] = si14 - frame_offset, r_cfa_offset_p[rd] = 1;
++ prologue_end = cur_pc + insnlen;
++ }
++ else if (((insn & 0xffc00000) == 0x2b400000 /* fst.s fd,sp,si12 */
++ || (insn & 0xffc00000) == 0x2bc00000) /* fst.d fd,sp,si12 */
++ && rj == sp)
++ {
++ if (!f_cfa_offset_p[rd])
++ f_cfa_offset[rd] = si12 - frame_offset, f_cfa_offset_p[rd] = 1;
++ }
++ else if ((((insn & 0xffff8000) == 0x00110000 /* sub.w sp,sp,rk */
++ && !rlen_is_64b)
++ || ((insn & 0xffff8000) == 0x00118000 /* sub.d sp,sp,rk */
++ && rlen_is_64b))
++ && rd == sp && rj == sp)
++ {
++ if (r_value_known[rk])
++ {
++ frame_offset += r_value[rk];
++ prologue_end = cur_pc + insnlen;
++ }
++ else
++ cfa_unknown = 1;
++ }
++ else if ((((insn & 0xffff8000) == 0x00100000 /* add.w sp,sp,rk */
++ && !rlen_is_64b)
++ || ((insn & 0xffff8000) == 0x00108000 /* add.d sp,sp,rk */
++ && rlen_is_64b))
++ && rd == sp && rj == sp)
++ {
++ if (r_value_known[rk] && r_value[rk] < 0)
++ {
++ frame_offset -= r_value[rk];
++ prologue_end = cur_pc + insnlen;
++ }
++ else
++ cfa_unknown = 1;
++ }
++ else if ((insn & 0xffff8000) == 0x00150000 /* or rd,sp,$r0 */
++ && rj == sp && rk == 0)
++ {
++ sp = rd;
++ prologue_end = cur_pc + insnlen;
++ }
++ else if ((insn & 0xffc00000) == 0x02800000) /* addi.w rd,rj,si12 */
++ {
++ if (r_value_known[rj] && rd != 0)
++ r_value[rd] = (int32_t) (r_value[rj] + si12),
++ r_value_known[rd] = 1;
++ }
++ else if ((insn & 0xffc00000) == 0x03800000) /* ori rd,rj,si12 */
++ {
++ if (r_value_known[rj] && rd != 0)
++ r_value[rd] = r_value[rj] | (si12 & 0xfff), r_value_known[rd] = 1;
++ }
++ else if ((insn & 0xfe000000) == 0x14000000) /* lu12i.w rd,si20 */
++ {
++ if (rd != 0)
++ r_value[rd] = si20 << 12, r_value_known[rd] = 1;
++ }
++ else if ((insn & 0xfe000000) == 0x16000000) /* lu32i.d rd,si20 */
++ {
++ if (r_value_known[rd] && rd != 0)
++ r_value[rd] = (r_value[rd] & 0xffffffff) | (si20 << 32),
++ r_value_known[rd] = 1;
++ }
++ else if ((insn & 0xffc00000) == 0x03000000) /* lu52i.d rd,rj,si12 */
++ {
++ if (r_value_known[rj] && rd != 0)
++ r_value[rd] = (r_value[rj] & 0xfffffffffffff) | (si12 << 52),
++ r_value_known[rd] = 1;
++ }
++ else if (loongarch_insn_is_branch (insn))
++ break; /* Shrink-wrap or end of prologue in a basic block. */
++ else
++ non_prologue_insns++;
++
++ /* 4 INSNs for 'la' and one for some other. */
++ if (5 < non_prologue_insns)
++ break;
++ }
++
++ if (loongarch_debug)
++ {
++ const char *fun_name;
++ find_pc_partial_function (start_pc, &fun_name, NULL, NULL);
++ fprintf_unfiltered (gdb_stdlog,
++ "Prologue Analyze: -- Start -- Callee [%s] %s\n",
++ fun_name ? fun_name : "<unknown>",
++ paddress (gdbarch, start_pc));
++ }
++
++ do
++ {
++ int i;
++ CORE_ADDR cfa = -1;
++
++ if (!(this_frame && this_cache))
++ break;
++
++ if (!cfa_unknown)
++ {
++ try
++ {
++ cfa = get_frame_register_signed (this_frame, regs->r + sp)
++ + frame_offset;
++ }
++ catch (const gdb_exception_error &ex)
++ {
++ cfa_unknown = 1;
++ if (ex.error != NOT_AVAILABLE_ERROR)
++ throw;
++ }
++
++ if (loongarch_debug)
++ fprintf_unfiltered (
++ gdb_stdlog,
++ "Prologue Analyze: CFA is (frame pointer $%s + 0x%lx) = %s\n",
++ gdbarch_register_name (gdbarch, regs->r + sp),
++ (long) frame_offset,
++ cfa_unknown ? "<unknown>" : paddress (gdbarch, cfa));
++ }
++ else if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog,
++ "Prologue Analyze: Unknown stack frame size, so "
++ "can't get known CFA\n");
++
++ if (r_cfa_offset_p[1] && !cfa_unknown)
++ {
++ CORE_ADDR ret_saved = cfa + r_cfa_offset[1];
++ trad_frame_set_reg_addr (this_cache, gdbarch_pc_regnum (gdbarch),
++ ret_saved);
++ if (loongarch_debug)
++ fprintf_unfiltered (
++ gdb_stdlog,
++ "Prologue Analyze: Return addr saved in (CFA - 0x%lx) = %s\n",
++ -r_cfa_offset[1], paddress (gdbarch, ret_saved));
++ }
++ else if (r_cfa_offset_p[1] /* && cfa_unknown */)
++ {
++ if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog,
++ "Prologue Analyze: Return addr saved in (CFA "
++ "- 0x%lx), but CFA is unknown\n",
++ -r_cfa_offset[1]);
++ }
++ else
++ {
++ trad_frame_set_reg_realreg (this_cache, gdbarch_pc_regnum (gdbarch),
++ regs->r + 1);
++ if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog,
++ "Prologue Analyze: No found $r1 pushed in "
++ "stack. Return addr saved in $r1\n");
++ }
++
++ if (cfa_unknown)
++ {
++ trad_frame_set_this_base (this_cache, -1);
++ break;
++ }
++
++ trad_frame_set_reg_value (this_cache, gdbarch_sp_regnum (gdbarch),
++ (LONGEST) cfa);
++ trad_frame_set_this_base (this_cache, cfa);
++
++ if (loongarch_debug)
++ fprintf_unfiltered (
++ gdb_stdlog,
++ "Prologue Analyze: Where caller's registers saved as follow:\n");
++
++ for (i = 0; i < 32; i++)
++ if (r_cfa_offset_p[i] && i != 1)
++ {
++ trad_frame_set_reg_addr (this_cache, regs->r + i,
++ cfa + r_cfa_offset[i]);
++ if (loongarch_debug)
++ fprintf_unfiltered (
++ gdb_stdlog,
++ "Prologue Analyze: $%s: saved in (CFA - 0x%lx) = %s\n",
++ gdbarch_register_name (gdbarch, regs->r + i), -r_cfa_offset[i],
++ paddress (gdbarch, cfa + r_cfa_offset[i]));
++ }
++
++ if (regs->f <= 0)
++ for (i = 0; i < 32; i++)
++ {
++ if (f_cfa_offset_p[i])
++ trad_frame_set_reg_addr (this_cache, regs->f + i,
++ cfa + f_cfa_offset[i]);
++ if (loongarch_debug)
++ fprintf_unfiltered (
++ gdb_stdlog,
++ "Prologue Analyze: $%s: saved in (CFA - 0x%lx) = %s\n",
++ gdbarch_register_name (gdbarch, regs->f + i), -f_cfa_offset[i],
++ paddress (gdbarch, cfa + f_cfa_offset[i]));
++ }
++ }
++ while (0);
++
++ if (loongarch_debug)
++ fprintf_unfiltered (gdb_stdlog, "Prologue Analyze: -- End -- %s\n",
++ paddress (gdbarch, cur_pc));
++
++ return prologue_end ? prologue_end : cur_pc;
++}
++
++/* Implement the loongarch_skip_prologue gdbarch method. */
++
++/* To skip prologues, I use this predicate. Returns either PC itself
++ if the code at PC does not look like a function prologue; otherwise
++ returns an address that (if we're lucky) follows the prologue. If
++ LENIENT, then we must skip everything which is involved in setting
++ up the frame (it's OK to skip more, just so long as we don't skip
++ anything which might clobber the registers which are being saved.
++ We must skip more in the case where part of the prologue is in the
++ delay slot of a non-prologue instruction). */
++
++static CORE_ADDR
++loongarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
++{
++ CORE_ADDR limit_pc;
++ CORE_ADDR func_addr;
++
++ /* See if we can determine the end of the prologue via the symbol table.
++ If so, then return either PC, or the PC after the prologue, whichever
++ is greater. */
++ if (find_pc_partial_function (pc, NULL, &func_addr, NULL))
++ {
++ CORE_ADDR post_prologue_pc
++ = skip_prologue_using_sal (gdbarch, func_addr);
++ if (post_prologue_pc != 0)
++ return std::max (pc, post_prologue_pc);
++ }
++
++ /* Can't determine prologue from the symbol table, need to examine
++ instructions. */
++
++ /* Find an upper limit on the function prologue using the debug
++ information. If the debug information could not be used to provide
++ that bound, then use an arbitrary large number as the upper bound. */
++ limit_pc = skip_prologue_using_sal (gdbarch, pc);
++ if (limit_pc == 0)
++ limit_pc = pc + 100; /* Magic. */
++
++ return loongarch_scan_prologue (gdbarch, pc, limit_pc, NULL, NULL);
++}
++
++/* Adjust the address downward (direction of stack growth) so that it
++ is correctly aligned for a new stack frame. */
++static CORE_ADDR
++loongarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr)
++{
++ return align_down (addr, 16);
++}
++
++/* Implement the unwind_pc gdbarch method. */
++
++static CORE_ADDR
++loongarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
++{
++ return frame_unwind_register_signed (next_frame,
++ gdbarch_pc_regnum (gdbarch));
++}
++
++/* Implement the unwind_sp gdbarch method. */
++
++static CORE_ADDR
++loongarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
++{
++ return frame_unwind_register_signed (next_frame,
++ gdbarch_sp_regnum (gdbarch));
++}
++
++/* Implement the dummy_id gdbarch method. */
++
++static struct frame_id
++loongarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
++{
++ return frame_id_build (
++ get_frame_register_signed (this_frame, gdbarch_sp_regnum (gdbarch)),
++ get_frame_pc (this_frame));
++}
++
++/* Generate, or return the cached frame cache for the loongarch frame
++ unwinder. */
++
++static struct trad_frame_cache *
++loongarch_frame_cache (struct frame_info *this_frame, void **this_cache)
++{
++ struct gdbarch *gdbarch = get_frame_arch (this_frame);
++ struct trad_frame_cache *cache;
++ CORE_ADDR pc, start_addr, stack_addr;
++
++ if (*this_cache != NULL)
++ return (struct trad_frame_cache *) *this_cache;
++ cache = trad_frame_cache_zalloc (this_frame);
++ *this_cache = cache;
++
++ pc = get_frame_address_in_block (this_frame);
++ if (find_pc_partial_function (pc, NULL, &start_addr, NULL))
++ {
++ loongarch_scan_prologue (gdbarch, start_addr, pc, this_frame, cache);
++ stack_addr = trad_frame_get_this_base (cache);
++ trad_frame_set_id (cache,
++ stack_addr == -1
++ ? frame_id_build_unavailable_stack (start_addr)
++ : frame_id_build (stack_addr, start_addr));
++ }
++ else
++ {
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ trad_frame_set_reg_realreg (cache, regs->ra, -2 /* TF_REG_UNKNOWN */);
++ trad_frame_set_reg_realreg (cache, gdbarch_pc_regnum (gdbarch),
++ regs->ra);
++
++ trad_frame_set_id (cache, frame_id_build_unavailable_stack (pc));
++ }
++ return cache;
++}
++
++/* Implement the this_id callback for loongarch frame unwinder. */
++
++static void
++loongarch_frame_this_id (struct frame_info *this_frame, void **prologue_cache,
++ struct frame_id *this_id)
++{
++ struct trad_frame_cache *info;
++
++ info = loongarch_frame_cache (this_frame, prologue_cache);
++ trad_frame_get_id (info, this_id);
++}
++
++/* Implement the prev_register callback for loongarch frame unwinder. */
++
++static struct value *
++loongarch_frame_prev_register (struct frame_info *this_frame,
++ void **prologue_cache, int regnum)
++{
++ struct trad_frame_cache *info;
++
++ info = loongarch_frame_cache (this_frame, prologue_cache);
++ return trad_frame_get_register (info, this_frame, regnum);
++}
++
++static const struct frame_unwind loongarch_frame_unwind = {
++ /*.type =*/NORMAL_FRAME,
++ /*.stop_reason =*/default_frame_unwind_stop_reason,
++ /*.this_id =*/loongarch_frame_this_id,
++ /*.prev_register =*/loongarch_frame_prev_register,
++ /*.unwind_data =*/NULL,
++ /*.sniffer =*/default_frame_sniffer,
++};
++
++typedef struct stack_data_t
++{
++ const gdb_byte *addr = NULL;
++ int len = 0;
++ bool ref = false;
++} stack_data_t;
++
++static void
++pass_on_stack (std::vector<stack_data_t> &stack, const gdb_byte *val, int len,
++ int align, bool ref = false)
++{
++ stack_data_t buf;
++ buf.addr = val;
++ buf.len = align_up (len, align);
++ buf.ref = ref;
++
++ stack.push_back (buf);
++}
++
++static void
++pass_on_reg (struct regcache *regcache, int regno, const gdb_byte *val,
++ int len)
++{
++ gdb_byte reg[32];
++ memset (reg, 0, sizeof (reg));
++ memcpy (reg, val, len);
++ regcache->cooked_write (regno, reg);
++}
++
++static void
++compute_type_num(struct type *tp, int &complex_num, int &float_num,
++ int &other_num, int &counter, int &float_seq,
++ int &other_seq)
++{
++ if (tp->code () == TYPE_CODE_COMPLEX)
++ complex_num++;
++ else if (tp->code () == TYPE_CODE_FLT)
++ float_num++;
++ else if (tp->code () != TYPE_CODE_STRUCT)
++ other_num++;
++
++ /* When the function parameter or return value type is a structure,
++ traverse each member in the structure and make relevant marks. */
++ for (int i = 0; i < tp->num_fields (); i++)
++ {
++ field fd = tp->field (i);
++ struct type *t = fd.type ();
++
++ /* Call check_typedef(TYPE_TARGET_TYPE (TYPE)) on our type to make
++ sure that, if TYPE is a TYPE_CODE_TYPEDEF, its TYPE is set to
++ the target type instead of TYPE_CODE_TYPEDEF. */
++ if (t->code () == TYPE_CODE_TYPEDEF)
++ t = check_typedef (TYPE_TARGET_TYPE (t));
++
++ switch (t->code ())
++ {
++ case TYPE_CODE_STRUCT:
++ compute_type_num(t, complex_num, float_num, other_num,
++ counter, float_seq, other_seq);
++ break;
++ case TYPE_CODE_COMPLEX:
++ complex_num++;
++ break;
++ case TYPE_CODE_FLT:
++ float_num++;
++ float_seq = ++counter;
++ break;
++ default:
++ other_num++;
++ other_seq = ++counter;
++ break;
++ }
++ }
++}
++
++static void
++pass_small_struct_on_reg (struct gdbarch *gdbarch, struct type *tp,
++ const gdb_byte *data, std::vector<stack_data_t> &gp,
++ std::vector<stack_data_t> &fp)
++{
++ const int rlen = loongarch_rlen (gdbarch) / 8;
++ int len = TYPE_LENGTH (tp);
++ int complex_num = 0, float_num = 0, other_num = 0;
++ int counter = 0, float_seq = 0, other_seq = 0;
++ stack_data_t elm;
++
++ gdb_assert (len <= 2 * rlen);
++
++ /* Compute the relevant members and types in the function parameters
++ and mark them. */
++ compute_type_num(tp, complex_num, float_num, other_num,
++ counter, float_seq, other_seq);
++
++ if (other_num > 0 && float_num == 0 && len <= rlen)
++ {
++ /* For the small structure has only other types (like char/short/int/long
++ etc.), and the size does not exceed rlen, pass on one gp or stack. */
++ elm.addr = data;
++ elm.len = rlen;
++ gp.push_back (elm);
++ }
++ else if (float_num == 1 && complex_num == 0 && other_num == 0 && len <= rlen)
++ {
++ /* For the small structure has only floating-point (like float/double),
++ and the size does not exceed rlen, pass on one fp or stack. */
++ elm.addr = data;
++ elm.len = rlen;
++ fp.push_back (elm);
++ }
++ else if (float_num == 1 && other_num == 1)
++ {
++ /* For the small structure has only one floating-point type and
++ one other type(like float and int, char and double etc.), the
++ floating-point type passes through one fp or stack, and the
++ other types pass on one gp or stack. */
++ if (float_seq < other_seq)
++ {
++ /* Floating point first, first pass on fp, then gp. */
++ elm.addr = data;
++ if (len == rlen)
++ elm.len = rlen / 2;
++ else
++ elm.len = rlen;
++ fp.push_back (elm);
++ elm.addr += elm.len;
++ gp.push_back (elm);
++ }
++ else
++ {
++ /* Floating point after, first pass on gp, then fp. */
++ elm.addr = data;
++ if (len == rlen)
++ elm.len = rlen / 2;
++ else
++ elm.len = rlen;
++ gp.push_back (elm);
++ elm.addr += elm.len;
++ fp.push_back (elm);
++ }
++ }
++ else if ((complex_num == 1 && float_num == 0 && other_num == 0) ||
++ (float_num ==2 && other_num == 0))
++ {
++ /* For the small structure has only two floating-point types or
++ * one complex number type, pass on two fp or stack. */
++ elm.addr = data;
++ /* 2 float or 1 'float _Complex'. */
++ if (len == rlen)
++ elm.len = rlen / 2;
++ /* 2 double or 1 'double _Complex'. */
++ else
++ elm.len = rlen;
++ fp.push_back (elm);
++ elm.addr += elm.len;
++ fp.push_back (elm);
++ }
++ else
++ {
++ /* For other cases, pass on two gp or stack. */
++ /* For example, the small structure is of the following type,
++ 1. with more than 2 other types and the size is greater than rlen
++ (like struct{int; int; int;}; struct{long; int; short; char;}; etc.).
++ 2. with 'long double' on fpu64 or 'double' on fpu32
++ (like struct{long double;}; or struct{double;}; etc.).
++ 3. with more than 2 floating-point types
++ (like struct{float; float; float;}; struct{float; float; double;};
++ struct{float; float; float; float;}; etc.)
++ 4. with 2 'float _Complex'
++ (like struct{float _Complex; float _Complex;} etc.). */
++ elm.addr = data;
++ elm.len = rlen;
++ gp.push_back (elm);
++ elm.addr += elm.len;
++ gp.push_back (elm);
++ }
++}
++
++static bool
++try_pass_small_struct_on_reg (struct gdbarch *gdbarch,
++ struct regcache *regcache, struct value *arg,
++ int &gp, int &fp, int gp_max, int fp_max)
++{
++ const int rlen = loongarch_rlen (gdbarch) / 8;
++ struct type *a_type = check_typedef (value_type (arg));
++ int len = TYPE_LENGTH (a_type);
++ const gdb_byte *val = value_contents (arg);
++
++ std::vector<stack_data_t> gpreg;
++ std::vector<stack_data_t> fpreg;
++
++ gdb_assert (len <= 2 * rlen);
++ // gdb_assert (a_type->code () == TYPE_CODE_STRUCT);
++
++ pass_small_struct_on_reg (gdbarch, a_type, val, gpreg, fpreg);
++
++ if (gp + gpreg.size () - 1 < gp_max && fp + fpreg.size () - 1 < fp_max)
++ {
++ for (auto it : gpreg)
++ {
++ pass_on_reg (regcache, gp, it.addr, it.len);
++ gp++;
++ }
++ for (auto it : fpreg)
++ {
++ pass_on_reg (regcache, fp, it.addr, it.len);
++ fp++;
++ }
++ return true;
++ }
++ return false;
++}
++
++/* Implement the push dummy call gdbarch callback. */
++
++static CORE_ADDR
++loongarch_lp32lp64_push_dummy_call (
++ struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
++ CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
++ function_call_return_method return_method, CORE_ADDR struct_addr)
++{
++ const int rlen = loongarch_rlen (gdbarch) / 8;
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ int gp = regs->r + 4; /* $a0 = $r4 = regs->r + 4 */
++ int fp = regs->f; /* $fa0 */
++ const int gp_max = gp + 8; /* gpr $a0 ~ $a7 ($r4 ~ $r11) */
++ const int fp_max = fp + 8; /* fpr $fa0 ~ $fa7 */
++ std::vector<stack_data_t> stack;
++ int vec_insn = 0;
++
++ {
++ if (return_method != return_method_normal)
++ {
++ regcache_cooked_write_unsigned (regcache, gp++, struct_addr);
++ }
++
++ if (return_method == return_method_hidden_param)
++ {
++ args++;
++ nargs--;
++ }
++ }
++ regcache_cooked_write_signed (regcache, regs->ra, bp_addr);
++
++ struct type *f_type = check_typedef (value_type (function));
++
++ for (int i = 0; i < nargs; i++)
++ {
++ struct value *arg = args[i];
++ struct type *a_type = check_typedef (value_type (arg));
++ int len = TYPE_LENGTH (a_type);
++ const gdb_byte *val = value_contents (arg);
++
++ switch (a_type->code ())
++ {
++ case TYPE_CODE_INT:
++ case TYPE_CODE_BOOL:
++ case TYPE_CODE_CHAR:
++ case TYPE_CODE_RANGE:
++ case TYPE_CODE_ENUM:
++ case TYPE_CODE_PTR:
++ if (gp < gp_max)
++ {
++ if (TYPE_UNSIGNED (a_type))
++ {
++ ULONGEST data
++ = extract_unsigned_integer (val, len, BFD_ENDIAN_LITTLE);
++ regcache_cooked_write_unsigned (regcache, gp++, data);
++ }
++ else
++ {
++ LONGEST data
++ = extract_signed_integer (val, len, BFD_ENDIAN_LITTLE);
++ regcache_cooked_write_signed (regcache, gp++, data);
++ }
++ }
++ else
++ {
++ pass_on_stack (stack, val, len, rlen);
++ }
++ break;
++ case TYPE_CODE_FLT:
++ if (len <= rlen)
++ {
++ if (!TYPE_VARARGS (f_type) && (fp < fp_max))
++ pass_on_reg (regcache, fp++, val, len);
++ else if (gp < gp_max)
++ pass_on_reg (regcache, gp++, val, len);
++ else
++ pass_on_stack (stack, val, len, rlen);
++ }
++ /* Long double like struct. */
++ else
++ {
++ if (gp < gp_max - 1)
++ {
++ pass_on_reg (regcache, gp++, val, rlen);
++ pass_on_reg (regcache, gp++, val + rlen, len - rlen);
++ }
++ else
++ pass_on_stack (stack, val, len, rlen);
++ }
++ break;
++ case TYPE_CODE_ARRAY:
++ /* lsx */
++ if (TYPE_VECTOR (a_type) && len == vec_insn && vec_insn == 16
++ && fp < fp_max)
++ {
++ pass_on_reg (regcache, regs->vr + (fp++ - regs->f), val, len);
++ }
++ /* lasx */
++ else if (TYPE_VECTOR (a_type) && len == vec_insn && vec_insn == 32
++ && fp < fp_max)
++ {
++ pass_on_reg (regcache, regs->xr + (fp++ - regs->f), val, len);
++ }
++ /* scalar */
++ else
++ {
++ if (len > rlen * 2)
++ {
++ /* Address on register, data on stack. */
++ sp = align_down (sp - len, rlen);
++ write_memory (sp, val, len);
++ if (gp < gp_max)
++ pass_on_reg (regcache, gp++, (const gdb_byte *) &sp, rlen);
++ else
++ pass_on_stack (stack, (const gdb_byte *) sp, rlen, rlen,
++ true);
++ }
++ else
++ {
++ if (len <= rlen && gp < gp_max)
++ {
++ pass_on_reg (regcache, gp++, val, len);
++ }
++ else if (gp + 1 < gp_max)
++ {
++ pass_on_reg (regcache, gp++, val, rlen);
++ pass_on_reg (regcache, gp++, val + rlen, rlen);
++ }
++ else
++ {
++ pass_on_stack (stack, val, len, rlen);
++ }
++ }
++ }
++ break;
++ case TYPE_CODE_STRUCT:
++ case TYPE_CODE_UNION:
++ if (len > rlen * 2)
++ {
++ /* Address on register, data on stack. */
++ sp = align_down (sp - len, rlen);
++ write_memory (sp, val, len);
++ if (gp < gp_max)
++ pass_on_reg (regcache, gp++, (const gdb_byte *) &sp, rlen);
++ else
++ pass_on_stack (stack, (const gdb_byte *) sp, rlen, rlen, true);
++ }
++ else
++ {
++ if (!try_pass_small_struct_on_reg (gdbarch, regcache, arg, gp,
++ fp, gp_max, fp_max))
++ {
++ pass_on_stack (stack, val, len, rlen);
++ }
++ }
++ break;
++ case TYPE_CODE_COMPLEX:
++ {
++ /* Two fpr or mem. */
++ struct type *t_type = check_typedef (TYPE_TARGET_TYPE (a_type));
++ int tlen = TYPE_LENGTH (t_type);
++
++ if (tlen < rlen)
++ {
++ if (!TYPE_VARARGS (f_type) && fp + 1 < fp_max)
++ {
++ pass_on_reg (regcache, fp++, (const gdb_byte *) val, tlen);
++ pass_on_reg (regcache, fp++, (const gdb_byte *) val + tlen,
++ tlen);
++ }
++ else if (gp < gp_max)
++ {
++ pass_on_reg (regcache, gp++, (const gdb_byte *) val, rlen);
++ }
++ else
++ {
++ pass_on_stack (stack, val, len, rlen);
++ }
++ }
++ else if (tlen == rlen)
++ {
++ if (!TYPE_VARARGS (f_type) && fp + 1 < fp_max)
++ {
++ pass_on_reg (regcache, fp++, (const gdb_byte *) val, tlen);
++ pass_on_reg (regcache, fp++, (const gdb_byte *) val + tlen,
++ tlen);
++ }
++ else if (gp + 1 < gp_max)
++ {
++ pass_on_reg (regcache, gp++, (const gdb_byte *) val, rlen);
++ pass_on_reg (regcache, gp++, (const gdb_byte *) val + rlen,
++ rlen);
++ }
++ else if (gp + 1 == gp_max)
++ {
++ pass_on_reg (regcache, gp++, (const gdb_byte *) val, rlen);
++ pass_on_stack (stack, val, tlen, rlen);
++ }
++ else
++ {
++ pass_on_stack (stack, val, len, rlen);
++ }
++ }
++ else
++ {
++ sp = align_down (sp - len, rlen);
++ write_memory (sp, val, len);
++ if (gp < gp_max)
++ pass_on_reg (regcache, gp++, (const gdb_byte *) &sp, rlen);
++ else
++ {
++ pass_on_stack (stack, (const gdb_byte *) sp, rlen, rlen,
++ true);
++ }
++ }
++ }
++ break;
++ default:
++ break;
++ }
++ }
++
++ for (auto it : stack)
++ sp = align_down (sp - it.len, rlen);
++
++ sp = align_down (sp, 16);
++ CORE_ADDR tsp = sp;
++ for (auto it : stack)
++ {
++ if (it.ref)
++ write_memory (tsp, (const gdb_byte *) &it.addr, it.len);
++ else
++ write_memory (tsp, it.addr, it.len);
++ tsp += it.len;
++ stack.pop_back ();
++ }
++ regcache_cooked_write_unsigned (regcache, regs->sp, sp);
++ return sp;
++}
++
++static void
++loongarch_xfer_reg_part (struct regcache *regcache, int reg_num, int len,
++ gdb_byte *readbuf, size_t readbuf_off,
++ const gdb_byte *writebuf, size_t writebuf_off)
++{
++ if (readbuf)
++ regcache->cooked_read_part (reg_num, 0, len, readbuf + readbuf_off);
++ if (writebuf)
++ regcache->cooked_write_part (reg_num, 0, len, writebuf + writebuf_off);
++}
++
++static enum return_value_convention
++loongarch_lp64_return_value (struct gdbarch *gdbarch, struct value *function,
++ struct type *type, struct regcache *regcache,
++ gdb_byte *readbuf, const gdb_byte *writebuf)
++{
++ const size_t rlen = loongarch_rlen (gdbarch) / 8;
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ size_t len = TYPE_LENGTH (type);
++ enum type_code typecode = type->code ();
++ int fpu_exist = 0 <= regs->f;
++ int fv = fpu_exist ? regs->f : regs->r + 4;
++
++ gdb_assert (8 <= sizeof (LONGEST));
++
++ gdb_assert (!fpu_exist || register_size (gdbarch, regs->f) == rlen);
++
++ if (2 * rlen < len)
++ return RETURN_VALUE_STRUCT_CONVENTION;
++
++ if (((typecode == TYPE_CODE_INT && TYPE_UNSIGNED (type))
++ || typecode == TYPE_CODE_ENUM)
++ && len <= rlen)
++ /* For unsigned scalar type, we have zero-extended one in $v0. */
++ if (writebuf)
++ {
++ gdb_byte buf[rlen];
++ store_signed_integer (buf, rlen, BFD_ENDIAN_LITTLE,
++ extract_unsigned_integer (writebuf, len,
++ BFD_ENDIAN_LITTLE));
++ loongarch_xfer_reg_part (regcache, regs->r + 4, rlen, NULL, 0,
++ writebuf, 0);
++ }
++ else
++ loongarch_xfer_reg_part (regcache, regs->r + 4, len, readbuf, 0, NULL,
++ 0);
++ else if (((typecode == TYPE_CODE_INT && !TYPE_UNSIGNED (type))
++ || typecode == TYPE_CODE_PTR)
++ && len <= rlen)
++ /* For signed scalar type, we have sign-extended one in $v0. */
++ if (writebuf)
++ {
++ gdb_byte buf[rlen];
++ store_signed_integer (buf, rlen, BFD_ENDIAN_LITTLE,
++ extract_signed_integer (writebuf, len,
++ BFD_ENDIAN_LITTLE));
++ loongarch_xfer_reg_part (regcache, regs->r + 4, rlen, NULL, 0,
++ writebuf, 0);
++ }
++ else
++ loongarch_xfer_reg_part (regcache, regs->r + 4, len, readbuf, 0, NULL,
++ 0);
++ else
++ {
++ int complex_num = 0, float_num = 0, other_num = 0;
++ int counter = 0, float_seq = 0, other_seq = 0, tlen;
++ /* Calculate the relevant members and types in the return value
++ and mark them. */
++ compute_type_num(type, complex_num, float_num, other_num,
++ counter, float_seq, other_seq);
++
++ if (len == rlen)
++ tlen = rlen / 2;
++ else
++ tlen = rlen;
++
++ /* For the small structure has only other types members (like char/short/int/long
++ etc.), and the size does not exceed rlen, pass on $v0. */
++ /* For 'char/short/int/long' etc. pass on $v0. */
++ if (other_num > 0 && float_num == 0 && len <= rlen)
++ loongarch_xfer_reg_part (regcache, regs->r + 4, len, readbuf, 0,
++ writebuf, 0);
++ /* For small structure with only one floating-point member, (like float/double) pass on $fv0. */
++ /* For float/double pass on $fv0. */
++ else if (float_num == 1 && complex_num == 0 && other_num == 0 && len <= rlen)
++ loongarch_xfer_reg_part (regcache, fv, len, readbuf, 0, writebuf, 0);
++ /* For small structure with one float/double member and one other member
++ (char/short/int/long etc.). If the float/dobule member is in the front
++ position, the float/dobule member pass on $fv0, the other member pass
++ on $v0, otherwise the opposite . */
++ else if (float_num == 1 && other_num == 1)
++ if (float_seq < other_seq)
++ loongarch_xfer_reg_part (regcache, fv, rlen, readbuf, 0,
++ writebuf, 0),
++ loongarch_xfer_reg_part (regcache, regs->r + 4, tlen, readbuf,
++ tlen, writebuf, rlen);
++ else
++ loongarch_xfer_reg_part (regcache, regs->r + 4, rlen, readbuf, 0,
++ writebuf, 0),
++ loongarch_xfer_reg_part (regcache, fv, tlen, readbuf,
++ tlen, writebuf, rlen);
++ /* For small structure with one 'float/double _Complex' member,
++ $fv0 is real and $fv1 is img. */
++ /* For small structure with only one float and double member or
++ or two float member , or two dobule member, $fv0 is the 1st
++ member and $fv1 is the 2nd member. */
++ /* For 'float/double _Complex', $fv0 is real and $fv1 is img. */
++ else if ((complex_num == 1 && float_num == 0 && other_num == 0) ||
++ (float_num ==2 && other_num == 0))
++ loongarch_xfer_reg_part (regcache, fv, rlen, readbuf, 0,
++ writebuf, 0),
++ loongarch_xfer_reg_part (regcache, fv + 1, tlen, readbuf,
++ tlen, writebuf, rlen);
++ /* For small structure with 'long double' member,
++ or when the small structure has more than two vaild members
++ and the size is greater than rlen, pass on $v0 and $v1. */
++ /* For small structure with two 'float _Complex' member,
++ $v0 is the 1st member and $v1 is the 2nd member. */
++ /* For 'long double' on fpu64 or 'double' on fpu32 pass on $v0 and $v1. */
++ else
++ loongarch_xfer_reg_part (regcache, regs->r + 4, rlen, readbuf, 0,
++ writebuf, 0),
++ loongarch_xfer_reg_part (regcache, regs->r + 5, len - rlen, readbuf,
++ rlen, writebuf, rlen);
++ }
++
++ return RETURN_VALUE_REGISTER_CONVENTION;
++}
++
++static int
++loongarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int num)
++{
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++ if (0 <= num && num < 32)
++ return regs->r + num;
++ else if (32 <= num && num < 64 && 0 <= regs->f)
++ return regs->f + num - 32;
++ else if (64 <= num && num < 72 && 0 <= regs->fcc)
++ return regs->fcc + num - 64;
++ else
++ return -1;
++}
++
++static std::string
++loongarch_gcc_target_options (struct gdbarch *gdbarch)
++{
++ return "";
++}
++
++static int
++loongarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
++ struct reggroup *group)
++{
++ auto regs = &gdbarch_tdep (gdbarch)->regs;
++
++ if (gdbarch_register_name (gdbarch, regnum) == NULL
++ || *gdbarch_register_name (gdbarch, regnum) == '\0')
++ return 0;
++
++ int raw_p = regnum < gdbarch_num_regs (gdbarch);
++
++ if (group == save_reggroup || group == restore_reggroup)
++ return raw_p;
++ if (group == all_reggroup)
++ return 1;
++
++ if (group == general_reggroup
++ && (regs->orig_a0 == regnum || regs->pc == regnum
++ || regs->badv == regnum
++ || (regs->r <= regnum && regnum < regs->r + 32)))
++ return 1;
++
++ /* Only $rx and $pc in general_reggroup. */
++ if (group == general_reggroup)
++ return 0;
++
++ if (0 <= regs->f
++ && (regs->fcsr == regnum || (regs->f <= regnum && regnum < regs->f + 32)
++ || (regs->fcc <= regnum && regnum < regs->fcc + 8)))
++ return group == float_reggroup;
++
++ /* Only $fx / $fccx / $fcsr in float_reggroup. */
++ if (group == float_reggroup)
++ return 0;
++
++ if (0 <= regs->vr && regs->vr <= regnum && regnum < regs->vr + 32)
++ if (group == vector_reggroup)
++ return 1;
++
++ if (0 <= regs->xr && regs->xr <= regnum && regnum < regs->xr + 32)
++ if (group == vector_reggroup)
++ return 1;
++
++ int ret = tdesc_register_in_reggroup_p (gdbarch, regnum, group);
++ if (ret != -1)
++ return ret;
++
++ return default_register_reggroup_p (gdbarch, regnum, group);
++}
++
++constexpr gdb_byte loongarch_default_breakpoint[] = {0x05, 0x00, 0x2a, 0x00};
++typedef BP_MANIPULATION (loongarch_default_breakpoint) loongarch_breakpoint;
++
++/* Initialize the current architecture based on INFO. If possible,
++ re-use an architecture from ARCHES, which is a list of
++ architectures already created during this debugging session.
++
++ Called e.g. at program startup, when reading a core file, and when
++ reading a binary file. */
++
++/* This predicate tests whether we need to read lsx/lasx registers
++ (instead of fp registers with the same DWARF2 code
++ (thus the same internal code, though lasx/lsx/fp reg internal
++ codes are different)) according to the byte-size of requested type. */
++
++static int
++loongarch_fp_regnum_refers_to_lsx_lasx_p (struct gdbarch *gdbarch, int regnum,
++ struct type *type)
++{
++ /* Conditions:
++ 1) regnum is in "disputed" zone (fp/lsx/lasx, translated
++ from dwarf regnum).
++ 2) type is larger than 8 bytes.
++
++ (if specified type is larger than 8 bytes,
++ then regnum refers to lsx / lasx register instead of fp register).
++ */
++ return regnum >= gdbarch_tdep (gdbarch)->regs.f
++ && regnum < gdbarch_tdep (gdbarch)->regs.f + 32
++ && TYPE_LENGTH (type) > 8;
++}
++
++static int
++loongarch_convert_register_p (struct gdbarch *gdbarch, int regnum,
++ struct type *type)
++{
++ return loongarch_fp_regnum_refers_to_lsx_lasx_p (gdbarch, regnum, type);
++}
++
++static int
++loongarch_register_to_value (struct frame_info *frame, int regnum,
++ struct type *type, gdb_byte *to, int *optimizedp,
++ int *unavailablep)
++{
++ struct gdbarch *gdbarch = get_frame_arch (frame);
++
++ if (loongarch_fp_regnum_refers_to_lsx_lasx_p (gdbarch, regnum, type))
++ {
++ /* Add a displacement to regnum. */
++ switch (TYPE_LENGTH (type))
++ {
++ case 16: /* 16-byte types, access vr. */
++ if (!get_frame_register_bytes (frame,
++ regnum
++ + gdbarch_tdep (gdbarch)->regs.vr
++ - gdbarch_tdep (gdbarch)->regs.f,
++ 0, 16, to + 0, optimizedp,
++ unavailablep))
++ return 0;
++ break;
++
++ case 32: /* 32-byte types, access xr. */
++ if (!get_frame_register_bytes (frame,
++ regnum
++ + gdbarch_tdep (gdbarch)->regs.xr
++ - gdbarch_tdep (gdbarch)->regs.f,
++ 0, 32, to + 0, optimizedp,
++ unavailablep))
++ return 0;
++ break;
++
++ default:
++ goto fail;
++ }
++
++ *optimizedp = *unavailablep = 0;
++ return 1; /* 1 for success, 0 for fail. */
++ }
++
++fail:
++ internal_error (__FILE__, __LINE__,
++ _ ("loongarch_register_to_value: unrecognized case"));
++}
++
++static void
++loongarch_value_to_register (struct frame_info *frame, int regnum,
++ struct type *type, const gdb_byte *from)
++{
++ struct gdbarch *gdbarch = get_frame_arch (frame);
++ if (loongarch_fp_regnum_refers_to_lsx_lasx_p (gdbarch, regnum, type))
++ {
++ switch (TYPE_LENGTH (type))
++ {
++ case 16: /* 16-byte types, access vr. */
++ put_frame_register (frame,
++ regnum + gdbarch_tdep (gdbarch)->regs.vr
++ - gdbarch_tdep (gdbarch)->regs.f,
++ from);
++ return;
++
++ case 32: /* 32-byte types, access xr. */
++ put_frame_register (frame,
++ regnum + gdbarch_tdep (gdbarch)->regs.xr
++ - gdbarch_tdep (gdbarch)->regs.f,
++ from);
++ return;
++ }
++ }
++
++ internal_error (__FILE__, __LINE__,
++ _ ("loongarch_value_to_register: unrecognized case"));
++}
++
++static int
++loongarch_get_longjmp_target (struct frame_info *frame, CORE_ADDR *pc)
++{
++ CORE_ADDR jb_addr;
++ struct gdbarch *gdbarch = get_frame_arch (frame);
++ uint32_t ptr_size = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
++ gdb_byte buf[ptr_size];
++
++ jb_addr = get_frame_register_unsigned (frame, LOONGARCH_A0_REGNUM);
++
++ if (target_read_memory ((jb_addr + LOONGARCH_JB_PC * ptr_size),
++ buf, ptr_size))
++ return 0;
++
++ *pc = extract_unsigned_integer (buf, ptr_size, BFD_ENDIAN_LITTLE);
++
++ return 1;
++}
++
++static struct gdbarch *
++loongarch_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
++{
++ struct gdbarch *gdbarch;
++ struct gdbarch_tdep tdep_instant, *tdep;
++ struct tdesc_arch_data *tdesc_data = NULL;
++ const struct target_desc *tdesc = info.target_desc;
++ int i;
++ size_t regnum;
++
++ tdep = &tdep_instant;
++ memset (tdep, 0, sizeof (*tdep));
++ memset (&tdep->regs, -1, sizeof (tdep->regs));
++
++ /* If abfd is nullptr then a EF_LOONGARCH_ABI_LP64 | EF_LOONGARCH_FLOAT_ABI_DOUBLE
++ is returned in its default state. */
++ if (info.abfd != NULL
++ && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
++ {
++ int eflags = elf_elfheader (info.abfd)->e_flags;
++ unsigned char eclass = elf_elfheader (info.abfd)->e_ident[EI_CLASS];
++
++ if (eflags) /* Executable file */
++ {
++ tdep->ef_abi = (EF_LOONGARCH_ABI(eflags) & EF_LOONGARCH_ABI_MASK);
++ }
++ else /* Core file */
++ {
++ if (eclass == ELFCLASS64)
++ tdep->ef_abi = EF_LOONGARCH_ABI_LP64_DOUBLE_FLOAT;
++ else
++ tdep->ef_abi = EF_LOONGARCH_ABI_ILP32_DOUBLE_FLOAT;
++ }
++ }
++ else
++ tdep->ef_abi = EF_LOONGARCH_ABI_LP64_DOUBLE_FLOAT;
++
++ /* Check any target description for validity. */
++ if (!tdesc_has_registers (tdesc))
++ tdesc = loongarch_get_base_target_description (
++ EF_LOONGARCH_IS_ILP32 (tdep->ef_abi) ? 32 : 64,
++ EF_LOONGARCH_IS_SINGLE_FLOAT (tdep->ef_abi) ? 32 : 64);
++
++ int valid_p = 1;
++ const struct tdesc_feature *feature;
++
++ feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.base");
++ if (feature == NULL)
++ return NULL;
++ regnum = 0;
++ tdesc_data = tdesc_data_alloc ();
++
++ tdep->regs.r = regnum;
++ for (i = 0; i < 32; i++)
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ loongarch_r_normal_name[i] + 1);
++ valid_p &= tdesc_numbered_register (feature, tdesc_data,
++ tdep->regs.orig_a0 = regnum++, "orig_a0");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data,
++ tdep->regs.pc = regnum++, "pc");
++ valid_p
++ &= tdesc_numbered_register (feature, tdesc_data,
++ tdep->regs.badv = regnum++, "badv");
++
++ if ((feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.fpu")))
++ {
++ tdep->regs.f = regnum;
++ for (i = 0; i < 32; i++)
++ valid_p
++ &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ loongarch_f_normal_name[i] + 1);
++ tdep->regs.fcc = regnum;
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ "fcc0");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ "fcc1");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ "fcc2");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ "fcc3");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ "fcc4");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ "fcc5");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ "fcc6");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ "fcc7");
++ valid_p &= tdesc_numbered_register (feature, tdesc_data,
++ tdep->regs.fcsr = regnum++, "fcsr");
++ }
++
++ if ((feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.lbt")))
++ {
++ tdep->regs.scr = regnum;
++ for (i = 0; i < 4; i++)
++ valid_p
++ &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ loongarch_cr_normal_name[i] + 1);
++ valid_p
++ &= tdesc_numbered_register (feature, tdesc_data,
++ tdep->regs.EFLAG = regnum++, "EFLAG");
++ valid_p
++ &= tdesc_numbered_register (feature, tdesc_data,
++ tdep->regs.x86_top = regnum++, "x86_top");
++ }
++
++ if ((feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.lsx")))
++ {
++ tdep->regs.vr = regnum;
++ for (i = 0; i < 32; i++)
++ valid_p
++ &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ loongarch_v_normal_name[i] + 1);
++ }
++
++ if ((feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.lasx")))
++ {
++ tdep->regs.xr = regnum;
++ for (i = 0; i < 32; i++)
++ valid_p
++ &= tdesc_numbered_register (feature, tdesc_data, regnum++,
++ loongarch_x_normal_name[i] + 1);
++ }
++
++ if (!valid_p)
++ {
++ return NULL;
++ }
++
++ info.byte_order_for_code = BFD_ENDIAN_LITTLE;
++
++ /* Find a candidate among the list of pre-declared architectures. */
++ for (arches = gdbarch_list_lookup_by_info (arches, &info); arches != NULL;
++ arches = gdbarch_list_lookup_by_info (arches->next, &info))
++ {
++ if (gdbarch_tdep (arches->gdbarch)->ef_abi != tdep->ef_abi)
++ continue;
++
++ return arches->gdbarch;
++ }
++
++ /* None found, so create a new architecture from the information provided. */
++ tdep = (struct gdbarch_tdep *) xmalloc (sizeof (tdep_instant));
++ memcpy (tdep, &tdep_instant, sizeof (tdep_instant));
++ gdbarch = gdbarch_alloc (&info, tdep);
++
++ /* Target data types. */
++ if (EF_LOONGARCH_IS_ILP32 (tdep->ef_abi))
++ {
++ set_gdbarch_short_bit (gdbarch, 16);
++ set_gdbarch_int_bit (gdbarch, 32);
++ set_gdbarch_long_bit (gdbarch, 32);
++ set_gdbarch_long_long_bit (gdbarch, 32);
++ set_gdbarch_float_bit (gdbarch, 32);
++ set_gdbarch_double_bit (gdbarch, 64);
++ set_gdbarch_long_double_bit (gdbarch, 128);
++ set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
++ set_gdbarch_ptr_bit (gdbarch, 32);
++ set_gdbarch_char_signed (gdbarch, 0);
++ }
++ else if (EF_LOONGARCH_IS_LP64 (tdep->ef_abi))
++ {
++ set_gdbarch_short_bit (gdbarch, 16);
++ set_gdbarch_int_bit (gdbarch, 32);
++ set_gdbarch_long_bit (gdbarch, 64);
++ set_gdbarch_long_long_bit (gdbarch, 64);
++ set_gdbarch_float_bit (gdbarch, 32);
++ set_gdbarch_double_bit (gdbarch, 64);
++ set_gdbarch_long_double_bit (gdbarch, 128);
++ set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
++ set_gdbarch_ptr_bit (gdbarch, 64);
++ set_gdbarch_char_signed (gdbarch, 0);
++
++ tdep->regs.ra = tdep->regs.r + 1;
++ tdep->regs.sp = tdep->regs.r + 3;
++
++ for (i = 0; i < ARRAY_SIZE (loongarch_r_normal_name); ++i)
++ if (loongarch_r_normal_name[i][0] != '\0')
++ user_reg_add (gdbarch, loongarch_r_normal_name[i] + 1,
++ value_of_loongarch_user_reg,
++ (void *) (size_t) (tdep->regs.r + i));
++
++ for (i = 0; i < ARRAY_SIZE (loongarch_r_lp64_name); ++i)
++ if (loongarch_r_lp64_name[i][0] != '\0')
++ user_reg_add (gdbarch, loongarch_r_lp64_name[i] + 1,
++ value_of_loongarch_user_reg,
++ (void *) (size_t) (tdep->regs.r + i));
++
++ for (i = 0; i < ARRAY_SIZE (loongarch_r_lp64_name1); ++i)
++ if (loongarch_r_lp64_name[i][0] != '\0')
++ user_reg_add (gdbarch, loongarch_r_lp64_name1[i] + 1,
++ value_of_loongarch_user_reg,
++ (void *) (size_t) (tdep->regs.r + i));
++
++ /* Functions handling dummy frames. */
++ set_gdbarch_push_dummy_call (gdbarch,
++ loongarch_lp32lp64_push_dummy_call);
++ set_gdbarch_return_value (gdbarch, loongarch_lp64_return_value);
++
++ }
++ else
++ gdb_assert_not_reached ("unknown ABI");
++
++ /* Hook in OS ABI-specific overrides, if they have been registered. */
++ info.target_desc = tdesc;
++ info.tdesc_data = tdesc_data;
++
++ /* Register architecture. */
++ set_gdbarch_num_regs (gdbarch, regnum);
++ set_gdbarch_sp_regnum (gdbarch, tdep->regs.sp);
++ set_gdbarch_pc_regnum (gdbarch, tdep->regs.pc);
++
++ tdesc_use_registers (gdbarch, tdesc, std::move (tdesc_data));
++
++ /* Functions to supply register information. */
++ set_gdbarch_register_name (gdbarch, loongarch_register_name);
++
++ /* Handle overlapping dwarf2 register code for fp/lsx/lasx. */
++ set_gdbarch_convert_register_p (gdbarch, loongarch_convert_register_p);
++ set_gdbarch_register_to_value (gdbarch, loongarch_register_to_value);
++ set_gdbarch_value_to_register (gdbarch, loongarch_value_to_register);
++
++ /* Functions to analyze frames. */
++ set_gdbarch_skip_prologue (gdbarch, loongarch_skip_prologue);
++ set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
++ set_gdbarch_frame_align (gdbarch, loongarch_frame_align);
++
++ /* Functions to access frame data. */
++ set_gdbarch_unwind_pc (gdbarch, loongarch_unwind_pc);
++ set_gdbarch_unwind_sp (gdbarch, loongarch_unwind_sp);
++
++ set_gdbarch_dummy_id (gdbarch, loongarch_dummy_id);
++
++ set_gdbarch_software_single_step (gdbarch, loongarch_software_single_step);
++
++ set_gdbarch_breakpoint_kind_from_pc (gdbarch,
++ loongarch_breakpoint::kind_from_pc);
++ set_gdbarch_sw_breakpoint_from_kind (gdbarch,
++ loongarch_breakpoint::bp_from_kind);
++
++ set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1);
++
++ /* Virtual tables. */
++ set_gdbarch_vbit_in_delta (gdbarch, 1);
++
++ set_gdbarch_gcc_target_options (gdbarch, loongarch_gcc_target_options);
++
++ gdbarch_init_osabi (info, gdbarch);
++ set_gdbarch_register_reggroup_p (gdbarch, loongarch_register_reggroup_p);
++ set_gdbarch_register_name (gdbarch, loongarch_register_name);
++
++ set_gdbarch_get_longjmp_target (gdbarch, loongarch_get_longjmp_target);
++
++ /* Frame unwinders. Use DWARF debug info if available, otherwise use our own
++ unwinder. */
++ set_gdbarch_dwarf2_reg_to_regnum (gdbarch, loongarch_dwarf2_reg_to_regnum);
++ dwarf2_append_unwinders (gdbarch);
++ frame_unwind_append_unwinder (gdbarch, &loongarch_frame_unwind);
++
++ return gdbarch;
++}
++
++static void
++info_loongarch (const char *addr_exp, int from_tty)
++{
++ char *buf, *t;
++ int set;
++ char *item;
++ unsigned long addr;
++ unsigned long long value;
++
++ if (addr_exp)
++ {
++ addr_exp = skip_spaces (addr_exp);
++ buf = (char *) alloca (strlen (addr_exp) + 1);
++ strcpy (buf, addr_exp);
++ loongarch_eliminate_adjacent_repeat_char (buf, ' ');
++ }
++ else
++ goto Empty;
++
++ if (!(t = strtok (buf, " ")))
++ goto Empty;
++ if (strcmp (t, "set") == 0)
++ {
++ t = strtok (NULL, " ");
++ set = 1;
++ }
++ else
++ {
++ if (strcmp (t, "get") == 0)
++ t = strtok (NULL, " ");
++ set = 0;
++ }
++ if (!(item = t))
++ goto Empty;
++ if (!(t = strtok (NULL, " ")))
++ goto Empty;
++ addr = strtoul (t, NULL, 0);
++ if (set && (t = strtok (NULL, " ")) == NULL)
++ goto Empty;
++ value = strtoll (t, NULL, 0);
++
++ if (set)
++ if (strcmp (item, "cpucfg") == 0)
++ {
++ uint32_t val32 = value;
++ ULONGEST xfered_len;
++ target_xfer_partial (current_inferior ()->top_target (),
++ TARGET_OBJECT_LARCH, "cpucfg", NULL,
++ (const gdb_byte *) &val32, addr * 4,
++ sizeof (val32), &xfered_len);
++ if (0 < xfered_len)
++ fprintf_unfiltered (gdb_stdout, "ok\n");
++ else
++ error ("Set failed");
++ }
++ else
++ {
++ uint64_t val64 = value;
++ ULONGEST xfered_len;
++ target_xfer_partial (current_inferior ()->top_target (),
++ TARGET_OBJECT_LARCH, item, NULL,
++ (const gdb_byte *) &val64, addr * 8,
++ sizeof (val64), &xfered_len);
++ if (0 < xfered_len)
++ fprintf_unfiltered (gdb_stdout, "ok\n");
++ else
++ error ("Set failed");
++ }
++ else if (strcmp (item, "cpucfg") == 0)
++ {
++ uint32_t val32;
++ ULONGEST xfered_len;
++ target_xfer_partial (current_inferior ()->top_target (),
++ TARGET_OBJECT_LARCH, "cpucfg", (gdb_byte *) &val32,
++ NULL, addr * 4, sizeof (val32), &xfered_len);
++ if (0 < xfered_len)
++ fprintf_unfiltered (gdb_stdout, "return is %x\n", val32);
++ else
++ error ("Get failed");
++ }
++ else
++ {
++ uint64_t val64;
++ ULONGEST xfered_len;
++ target_xfer_partial (current_inferior ()->top_target (),
++ TARGET_OBJECT_LARCH, item, (gdb_byte *) &val64,
++ NULL, addr * 8, sizeof (val64), &xfered_len);
++ if (0 < xfered_len)
++ fprintf_unfiltered (gdb_stdout, "return is %llx\n", (long long) val64);
++ else
++ error ("Get failed");
++ }
++
++ return;
++Empty:
++ error ("Empty. Should be 'info loongarch ([get]|set) item addr [value]'");
++}
++
++void _initialize_loongarch_tdep ();
++void
++_initialize_loongarch_tdep ()
++{
++ gdbarch_register (bfd_arch_loongarch, loongarch_gdbarch_init, NULL);
++
++ add_info ("loongarch", info_loongarch, _ ("Loongarch extra"));
++
++ /* Debug this files internals. */
++ add_setshow_zuinteger_cmd ("loongarch", class_maintenance, &loongarch_debug,
++ _ ("\
++Set loongarch debugging."),
++ _ ("\
++Show loongarch debugging."),
++ _ ("\
++When non-zero, loongarch specific debugging is enabled."),
++ NULL, NULL, &setdebuglist, &showdebuglist);
++}
+diff --git gdb-10.2/gdb/loongarch-tdep.h gdb-10.2/gdb/loongarch-tdep.h
+new file mode 100644
+index 0000000..12bc78e
+--- /dev/null
++++ gdb-10.2/gdb/loongarch-tdep.h
+@@ -0,0 +1,61 @@
++/* Target-dependent code for GNU/Linux LoongArch.
++
++ Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#ifndef LOONGARCH_TDEP_H
++#define LOONGARCH_TDEP_H
++
++#include "arch/loongarch.h"
++
++/* Register numbers of important registers. Note that most of
++ these values are "real" register numbers, and correspond to the
++ general registers of the machine. */
++#define LOONGARCH_A0_REGNUM 4 /* Loc of first arg */
++
++struct gdbarch_tdep
++{
++ int ef_abi; /* EF_LOONGARCH_ABI */
++
++ struct
++ {
++ int r;
++ int ra;
++ int sp;
++ int orig_a0;
++ int pc;
++ int badv;
++
++ int f;
++ int fcc;
++ int fcsr;
++ int vr;
++ int xr;
++
++ int scr;
++ int EFLAG;
++ int x86_top;
++
++ } regs;
++
++ /* Return the expected next PC if FRAME is stopped at a syscall
++ instruction. */
++ CORE_ADDR (*syscall_next_pc) (struct frame_info *frame);
++};
++
++#endif /* LOONGARCH_TDEP_H */
+diff --git gdb-10.2/gdb/nat/loongarch-linux-watch.c gdb-10.2/gdb/nat/loongarch-linux-watch.c
+new file mode 100644
+index 0000000..f7c0dbf
+--- /dev/null
++++ gdb-10.2/gdb/nat/loongarch-linux-watch.c
+@@ -0,0 +1,330 @@
++/* Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GDB.
++
++ Based on MIPS target.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#include "gdbsupport/common-defs.h"
++#include "nat/gdb_ptrace.h"
++#include "loongarch-linux-watch.h"
++
++/* Assuming usable watch registers REGS, return the irwmask of
++ register N. */
++
++uint8_t
++loongarch_linux_watch_get_irwmask (struct pt_watch_regs *regs, int n)
++{
++ switch (regs->style)
++ {
++ case pt_watch_style_la32:
++ return regs->la32[n].irwmask & IRW_MASK;
++ case pt_watch_style_la64:
++ return regs->la64[n].irwmask & IRW_MASK;
++ default:
++ internal_error (__FILE__, __LINE__,
++ _ ("Unrecognized watch register style"));
++ }
++}
++
++/* Assuming usable watch registers REGS, return the irwstat of
++ register N. */
++
++uint8_t
++loongarch_linux_watch_get_irwstat (struct pt_watch_regs *regs, int n)
++{
++ switch (regs->style)
++ {
++ case pt_watch_style_la32:
++ return regs->la32[n].irwstat & IRW_MASK;
++ case pt_watch_style_la64:
++ return regs->la64[n].irwstat & IRW_MASK;
++ default:
++ internal_error (__FILE__, __LINE__,
++ _ ("Unrecognized watch register style"));
++ }
++}
++
++/* Assuming usable watch registers REGS, return the num_valid. */
++
++uint32_t
++loongarch_linux_watch_get_num_valid (struct pt_watch_regs *regs)
++{
++ return regs->num_valid;
++}
++
++/* Assuming usable watch registers REGS, return the addr of
++ register N. */
++
++CORE_ADDR
++loongarch_linux_watch_get_addr (struct pt_watch_regs *regs, int n)
++{
++ switch (regs->style)
++ {
++ case pt_watch_style_la32:
++ return regs->la32[n].addr;
++ case pt_watch_style_la64:
++ return regs->la64[n].addr;
++ default:
++ internal_error (__FILE__, __LINE__,
++ _ ("Unrecognized watch register style"));
++ }
++}
++
++/* Assuming usable watch registers REGS, set addr of register N to
++ VALUE. */
++
++void
++loongarch_linux_watch_set_addr (struct pt_watch_regs *regs, int n,
++ CORE_ADDR value)
++{
++ switch (regs->style)
++ {
++ case pt_watch_style_la32:
++ /* The cast will never throw away bits as 64 bit addresses can
++ never be used on a 32 bit kernel. */
++ regs->la32[n].addr = (uint32_t) value;
++ break;
++ case pt_watch_style_la64:
++ regs->la64[n].addr = value;
++ break;
++ default:
++ internal_error (__FILE__, __LINE__,
++ _ ("Unrecognized watch register style"));
++ }
++}
++
++/* Assuming usable watch registers REGS, return the mask of
++ register N. */
++
++CORE_ADDR
++loongarch_linux_watch_get_mask (struct pt_watch_regs *regs, int n)
++{
++ switch (regs->style)
++ {
++ case pt_watch_style_la32:
++ return regs->la32[n].mask;
++ case pt_watch_style_la64:
++ return regs->la64[n].mask;
++ default:
++ internal_error (__FILE__, __LINE__,
++ _ ("Unrecognized watch register style"));
++ }
++}
++
++/* Assuming usable watch registers REGS, set mask of register N to
++ VALUE. */
++
++void
++loongarch_linux_watch_set_mask (struct pt_watch_regs *regs, int n,
++ CORE_ADDR value)
++{
++ switch (regs->style)
++ {
++ case pt_watch_style_la32:
++ regs->la32[n].mask = value;
++ break;
++ case pt_watch_style_la64:
++ regs->la64[n].mask = value;
++ break;
++ default:
++ internal_error (__FILE__, __LINE__,
++ _ ("Unrecognized watch register style"));
++ }
++}
++
++/* Assuming usable watch registers REGS, return the irw of
++ register N. */
++
++uint8_t
++loongarch_linux_watch_get_irw (struct pt_watch_regs *regs, int n)
++{
++ switch (regs->style)
++ {
++ case pt_watch_style_la32:
++ return regs->la32[n].irw;
++ case pt_watch_style_la64:
++ return regs->la64[n].irw;
++ default:
++ internal_error (__FILE__, __LINE__,
++ _ ("Unrecognized watch register style"));
++ }
++}
++
++/* Assuming usable watch registers REGS, set irw of register N to
++ VALUE. */
++
++void
++loongarch_linux_watch_set_irw (struct pt_watch_regs *regs, int n,
++ uint8_t value)
++{
++ switch (regs->style)
++ {
++ case pt_watch_style_la32:
++ regs->la32[n].irw = value;
++ break;
++ case pt_watch_style_la64:
++ regs->la64[n].irw = value;
++ break;
++ default:
++ internal_error (__FILE__, __LINE__,
++ _ ("Unrecognized watch register style"));
++ }
++}
++
++/* Read the watch registers of process LWPID and store it in
++ WATCH_READBACK. Save true to *WATCH_READBACK_VALID if watch
++ registers are valid. Return 1 if watch registers are usable.
++ Cached information is used unless FORCE is true. */
++
++int
++loongarch_linux_read_watch_registers (long lwpid,
++ struct pt_watch_regs *watch_readback,
++ int *watch_readback_valid, int force)
++{
++ if (force || *watch_readback_valid == 0)
++ {
++ if (ptrace (PTRACE_GET_WATCH_REGS, lwpid, watch_readback, NULL) == -1)
++ {
++ *watch_readback_valid = -1;
++ return 0;
++ }
++ if (watch_readback->num_valid == 0)
++ {
++ *watch_readback_valid = -1;
++ return 0;
++ }
++ /* Watch registers appear to be usable. */
++ *watch_readback_valid = 1;
++ }
++ return (*watch_readback_valid == 1) ? 1 : 0;
++}
++
++/* Convert GDB's TYPE to an IRW mask. */
++
++uint32_t
++loongarch_linux_watch_type_to_irw (enum target_hw_bp_type type)
++{
++ switch (type)
++ {
++ case hw_write:
++ return W_MASK;
++ case hw_read:
++ return R_MASK;
++ case hw_access:
++ return (W_MASK | R_MASK);
++ case hw_execute:
++ return I_MASK;
++ default:
++ return 0;
++ }
++}
++
++/* Set any low order bits in MASK that are not set. */
++
++static CORE_ADDR
++fill_mask (CORE_ADDR mask)
++{
++ CORE_ADDR f = 1;
++
++ while (f && f < mask)
++ {
++ mask |= f;
++ f <<= 1;
++ }
++ return mask;
++}
++
++/* Try to add a single watch to the specified registers REGS. The
++ address of added watch is ADDR, the length is LEN, and the mask
++ is IRW. Return 1 on success, 0 on failure. */
++
++int
++loongarch_linux_watch_try_one_watch (struct pt_watch_regs *regs,
++ CORE_ADDR addr, int len, uint32_t irw)
++{
++ CORE_ADDR base_addr, last_byte;
++ CORE_ADDR mask_bits, t_addr, t_mask;
++ uint8_t t_irw;
++ int i;
++
++ if (len <= 0)
++ return 0;
++
++ last_byte = addr + len - 1;
++ mask_bits = fill_mask (addr ^ last_byte);
++ base_addr = addr & ~mask_bits;
++
++ /* Check to see if it is covered by current registers. */
++ for (i = 0; i < loongarch_linux_watch_get_num_valid (regs); i++)
++ {
++ t_addr = loongarch_linux_watch_get_addr (regs, i);
++ t_irw = loongarch_linux_watch_get_irw (regs, i);
++ if (t_addr != 0 && irw == ((uint32_t) t_irw & irw))
++ {
++ t_mask = loongarch_linux_watch_get_mask (regs, i);
++ if (addr >= t_addr && last_byte <= (t_addr + t_mask))
++ return 1;
++ }
++ }
++ /* Try to find an empty register. */
++ for (i = 0; i < loongarch_linux_watch_get_num_valid (regs); i++)
++ {
++ t_addr = loongarch_linux_watch_get_addr (regs, i);
++ if (t_addr == 0
++ && irw == (loongarch_linux_watch_get_irwmask (regs, i) & irw))
++ {
++ /* It fits, we'll take it. */
++ loongarch_linux_watch_set_addr (regs, i, base_addr);
++ loongarch_linux_watch_set_mask (regs, i, mask_bits);
++ loongarch_linux_watch_set_irw (regs, i, irw);
++ return 1;
++ }
++ }
++ /* It didn't fit anywhere, we failed. */
++ return 0;
++}
++
++/* Fill in the watch registers REGS with the currently cached
++ watches CURRENT_WATCHES. */
++
++void
++loongarch_linux_watch_populate_regs (
++ struct loongarch_watchpoint *current_watches, struct pt_watch_regs *regs)
++{
++ struct loongarch_watchpoint *w;
++ int i;
++
++ /* Clear them out. */
++ for (i = 0; i < loongarch_linux_watch_get_num_valid (regs); i++)
++ {
++ loongarch_linux_watch_set_addr (regs, i, 0);
++ loongarch_linux_watch_set_mask (regs, i, 0);
++ loongarch_linux_watch_set_irw (regs, i, 0);
++ }
++
++ w = current_watches;
++ while (w)
++ {
++ uint32_t irw = loongarch_linux_watch_type_to_irw (w->type);
++
++ i = loongarch_linux_watch_try_one_watch (regs, w->addr, w->len, irw);
++ /* They must all fit, because we previously calculated that they
++ would. */
++ gdb_assert (i);
++ w = w->next;
++ }
++}
+diff --git gdb-10.2/gdb/nat/loongarch-linux-watch.h gdb-10.2/gdb/nat/loongarch-linux-watch.h
+new file mode 100644
+index 0000000..ab80b44
+--- /dev/null
++++ gdb-10.2/gdb/nat/loongarch-linux-watch.h
+@@ -0,0 +1,132 @@
++/* Copyright (C) 2021 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GDB.
++
++ Based on MIPS target.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#ifndef LOONGARCH_LINUX_WATCH_H
++#define LOONGARCH_LINUX_WATCH_H 1
++
++#include <asm/ptrace.h>
++#include "gdbsupport/break-common.h"
++
++#define MAX_DEBUG_REGISTER 16
++
++/* If macro PTRACE_GET_WATCH_REGS is not defined, kernel header doesn't
++ have hardware watchpoint-related structures. Define them below. */
++
++#ifndef PTRACE_GET_WATCH_REGS
++#define PTRACE_GET_WATCH_REGS 0xd0
++#define PTRACE_SET_WATCH_REGS 0xd1
++
++enum pt_watch_style
++{
++ pt_watch_style_la32,
++ pt_watch_style_la64
++};
++
++/* A value of zero in a watchlo indicates that it is available. */
++
++struct la32_watch_regs
++{
++ uint32_t addr;
++ /* Lower 16 bits of watchhi. */
++ uint32_t mask;
++ /* Valid mask and I R W bits.
++ * bit 0 -- 1 if W bit is usable.
++ * bit 1 -- 1 if R bit is usable.
++ * bit 2 -- 1 if I bit is usable.
++ * bits 3 - 11 -- Valid watchhi mask bits.
++ */
++ uint8_t irw;
++ uint8_t irwstat;
++ uint8_t irwmask;
++ /* There is confusion across gcc versions about structure alignment,
++ so we force 8 byte alignment for these structures so they match
++ the kernel even if it was build with a different gcc version. */
++} __attribute__ ((aligned (8)));
++
++struct la64_watch_regs
++{
++ uint64_t addr;
++ uint64_t mask;
++ uint8_t irw;
++ uint8_t irwstat;
++ uint8_t irwmask;
++} __attribute__ ((aligned (8)));
++
++struct pt_watch_regs
++{
++ uint16_t max_valid;
++ uint16_t num_valid;
++ enum pt_watch_style style;
++ union
++ {
++ struct la32_watch_regs la32[MAX_DEBUG_REGISTER];
++ struct la64_watch_regs la64[MAX_DEBUG_REGISTER];
++ };
++};
++
++#endif /* !PTRACE_GET_WATCH_REGS */
++
++#define W_BIT 0
++#define R_BIT 1
++#define I_BIT 2
++
++#define W_MASK (1 << W_BIT)
++#define R_MASK (1 << R_BIT)
++#define I_MASK (1 << I_BIT)
++
++#define IRW_MASK (I_MASK | R_MASK | W_MASK)
++
++/* We keep list of all watchpoints we should install and calculate the
++ watch register values each time the list changes. This allows for
++ easy sharing of watch registers for more than one watchpoint. */
++
++struct loongarch_watchpoint
++{
++ CORE_ADDR addr;
++ int len;
++ enum target_hw_bp_type type;
++ struct loongarch_watchpoint *next;
++};
++
++uint32_t loongarch_linux_watch_get_num_valid (struct pt_watch_regs *regs);
++uint8_t loongarch_linux_watch_get_irwmask (struct pt_watch_regs *regs, int n);
++uint8_t loongarch_linux_watch_get_irwstat (struct pt_watch_regs *regs, int n);
++CORE_ADDR loongarch_linux_watch_get_addr (struct pt_watch_regs *regs, int n);
++void loongarch_linux_watch_set_addr (struct pt_watch_regs *regs, int n,
++ CORE_ADDR value);
++CORE_ADDR loongarch_linux_watch_get_mask (struct pt_watch_regs *regs, int n);
++void loongarch_linux_watch_set_mask (struct pt_watch_regs *regs, int n,
++ CORE_ADDR value);
++uint8_t loongarch_linux_watch_get_irw (struct pt_watch_regs *regs, int n);
++void loongarch_linux_watch_set_irw (struct pt_watch_regs *regs, int n,
++ uint8_t value);
++int loongarch_linux_watch_try_one_watch (struct pt_watch_regs *regs,
++ CORE_ADDR addr, int len,
++ uint32_t irw);
++void loongarch_linux_watch_populate_regs (
++ struct loongarch_watchpoint *current_watches, struct pt_watch_regs *regs);
++uint32_t loongarch_linux_watch_type_to_irw (enum target_hw_bp_type type);
++
++int loongarch_linux_read_watch_registers (long lwpid,
++ struct pt_watch_regs *watch_readback,
++ int *watch_readback_valid,
++ int force);
++
++#endif /* #define LOONGARCH_LINUX_WATCH_H */
+diff --git gdb-10.2/gdb/remote.c gdb-10.2/gdb/remote.c
+index 4896c2a..67a9acd 100644
+--- gdb-10.2/gdb/remote.c
++++ gdb-10.2/gdb/remote.c
+@@ -1983,6 +1983,8 @@ enum {
+ PACKET_qXfer_statictrace_read,
+ PACKET_qXfer_traceframe_info,
+ PACKET_qXfer_uib,
++ PACKET_qXfer_loongarch_read,
++ PACKET_qXfer_loongarch_write,
+ PACKET_qGetTIBAddr,
+ PACKET_qGetTLSAddr,
+ PACKET_qSupported,
+@@ -5154,6 +5156,10 @@ static const struct protocol_feature remote_protocol_features[] = {
+ PACKET_qXfer_threads },
+ { "qXfer:traceframe-info:read", PACKET_DISABLE, remote_supported_packet,
+ PACKET_qXfer_traceframe_info },
++ { "qXfer:loongarch:read", PACKET_DISABLE, remote_supported_packet,
++ PACKET_qXfer_loongarch_read },
++ { "qXfer:loongarch:write", PACKET_DISABLE, remote_supported_packet,
++ PACKET_qXfer_loongarch_write },
+ { "QPassSignals", PACKET_DISABLE, remote_supported_packet,
+ PACKET_QPassSignals },
+ { "QCatchSyscalls", PACKET_DISABLE, remote_supported_packet,
+@@ -11013,6 +11019,18 @@ remote_target::xfer_partial (enum target_object object,
+ return TARGET_XFER_E_IO;
+ }
+
++ if (object == TARGET_OBJECT_LARCH)
++ {
++ if (readbuf)
++ return remote_read_qxfer ("loongarch", annex, readbuf, offset, len,
++ xfered_len, &remote_protocol_packets
++ [PACKET_qXfer_loongarch_read]);
++ else
++ return remote_write_qxfer ("loongarch", annex, writebuf, offset, len,
++ xfered_len, &remote_protocol_packets
++ [PACKET_qXfer_loongarch_write]);
++ }
++
+ /* Only handle flash writes. */
+ if (writebuf != NULL)
+ {
+@@ -14626,6 +14644,13 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL,
+ add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_uib],
+ "qXfer:uib:read", "unwind-info-block", 0);
+
++ add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_loongarch_read],
++ "qXfer:loongarch:read", "read-loongarch-object", 0);
++
++ add_packet_config_cmd
++ (&remote_protocol_packets[PACKET_qXfer_loongarch_write],
++ "qXfer:loongarch:write", "write-loongarch-object", 0);
++
+ add_packet_config_cmd (&remote_protocol_packets[PACKET_qGetTLSAddr],
+ "qGetTLSAddr", "get-thread-local-storage-address",
+ 0);
+diff --git gdb-10.2/gdb/target.h gdb-10.2/gdb/target.h
+index 9603912..40a3cce 100644
+--- gdb-10.2/gdb/target.h
++++ gdb-10.2/gdb/target.h
+@@ -135,6 +135,9 @@ enum inferior_event_type
+
+ enum target_object
+ {
++ /* LARCH target specific transfer. See "loongarch-nat.c" "corelow.c"
++ and "remote.c". */
++ TARGET_OBJECT_LARCH,
+ /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */
+ TARGET_OBJECT_AVR,
+ /* Transfer up-to LEN bytes of memory starting at OFFSET. */
+diff --git gdb-10.2/gdb/testsuite/gdb.base/dump.exp gdb-10.2/gdb/testsuite/gdb.base/dump.exp
+index 2b79237..64d5b39 100644
+--- gdb-10.2/gdb/testsuite/gdb.base/dump.exp
++++ gdb-10.2/gdb/testsuite/gdb.base/dump.exp
+@@ -143,11 +143,13 @@ make_dump_file "dump srec val [set intarr1.srec] intarray" \
+ make_dump_file "dump srec val [set intstr1.srec] intstruct" \
+ "dump struct as value, srec"
+
++if { ![istarget loongarch*-*-*] } {
+ make_dump_file "dump ihex val [set intarr1.ihex] intarray" \
+ "dump array as value, intel hex"
+
+ make_dump_file "dump ihex val [set intstr1.ihex] intstruct" \
+ "dump struct as value, intel hex"
++}
+
+ make_dump_file "dump tekhex val [set intarr1.tekhex] intarray" \
+ "dump array as value, tekhex"
+@@ -244,11 +246,13 @@ make_dump_file "dump srec mem [set intarr2.srec] $array_start $array_end" \
+ make_dump_file "dump srec mem [set intstr2.srec] $struct_start $struct_end" \
+ "dump struct as memory, srec"
+
++if { ![istarget loongarch*-*-*] } {
+ make_dump_file "dump ihex mem [set intarr2.ihex] $array_start $array_end" \
+ "dump array as memory, ihex"
+
+ make_dump_file "dump ihex mem [set intstr2.ihex] $struct_start $struct_end" \
+ "dump struct as memory, ihex"
++}
+
+ make_dump_file "dump tekhex mem [set intarr2.tekhex] $array_start $array_end" \
+ "dump array as memory, tekhex"
+diff --git gdb-10.2/gdb/testsuite/gdb.base/float.exp gdb-10.2/gdb/testsuite/gdb.base/float.exp
+index dc5e2fa..d179a8f 100644
+--- gdb-10.2/gdb/testsuite/gdb.base/float.exp
++++ gdb-10.2/gdb/testsuite/gdb.base/float.exp
+@@ -120,6 +120,8 @@ if { [is_aarch64_target] } then {
+ pass "info float (without FPU)"
+ }
+ }
++} elseif [istarget "loongarch*-*-*"] then {
++ gdb_test "info float" "f.*fcc0.*fcsr.*" "info float"
+ } else {
+ gdb_test "info float" "No floating.point info available for this processor." "info float (unknown target)"
+ }
+diff --git gdb-10.2/gdb/testsuite/gdb.trace/entry-values.exp gdb-10.2/gdb/testsuite/gdb.trace/entry-values.exp
+index 3695a1e..f19f5b9 100644
+--- gdb-10.2/gdb/testsuite/gdb.trace/entry-values.exp
++++ gdb-10.2/gdb/testsuite/gdb.trace/entry-values.exp
+@@ -62,6 +62,8 @@ if { [istarget "arm*-*-*"] || [istarget "aarch64*-*-*"] } {
+ # returns. The only exception is JALRC, in which case execution
+ # resumes from `insn1' instead.
+ set call_insn {jalrc|[jb]al[sxr]*[ \t][^\r\n]+\r\n}
++} elseif { [istarget "loongarch*-*-*"] } {
++ set call_insn "bl"
+ } else {
+ set call_insn "call"
+ }
+diff --git gdb-10.2/gdb/testsuite/gdb.xml/tdesc-regs.exp gdb-10.2/gdb/testsuite/gdb.xml/tdesc-regs.exp
+index 1ee6ae1..4d69fb3 100644
+--- gdb-10.2/gdb/testsuite/gdb.xml/tdesc-regs.exp
++++ gdb-10.2/gdb/testsuite/gdb.xml/tdesc-regs.exp
+@@ -82,6 +82,11 @@ switch -glob -- [istarget] {
+ set regdir "i386/"
+ set core-regs {64bit-core.xml 64bit-sse.xml}
+ }
++ "loongarch64-*-*" {
++ set architecture "loongarch64"
++ set regdir "loongarch/"
++ set core-regs {base64.xml fpu64.xml lbt64.xml lsx.xml lasx.xml}
++ }
+ }
+
+ # If no core registers were specified, assume this target does not
+diff --git gdb-10.2/gdbserver/Makefile.in gdb-10.2/gdbserver/Makefile.in
+index 2bd3a57..3bd8970 100644
+--- gdb-10.2/gdbserver/Makefile.in
++++ gdb-10.2/gdbserver/Makefile.in
+@@ -182,6 +182,7 @@ SFILES = \
+ $(srcdir)/linux-arc-low.cc \
+ $(srcdir)/linux-arm-low.cc \
+ $(srcdir)/linux-ia64-low.cc \
++ $(srcdir)/linux-loongarch-low.cc \
+ $(srcdir)/linux-low.cc \
+ $(srcdir)/linux-m68k-low.cc \
+ $(srcdir)/linux-mips-low.cc \
+@@ -214,6 +215,7 @@ SFILES = \
+ $(srcdir)/../gdb/arch/arm.c \
+ $(srcdir)/../gdb/arch/arm-get-next-pcs.c \
+ $(srcdir)/../gdb/arch/arm-linux.c \
++ $(srcdir)/../gdb/arch/loongarch.c \
+ $(srcdir)/../gdb/arch/ppc-linux-common.c \
+ $(srcdir)/../gdb/arch/riscv.c \
+ $(srcdir)/../gdb/nat/aarch64-sve-linux-ptrace.c \
+diff --git gdb-10.2/gdbserver/configure.srv gdb-10.2/gdbserver/configure.srv
+index 0cb5072..c4ca3a1 100644
+--- gdb-10.2/gdbserver/configure.srv
++++ gdb-10.2/gdbserver/configure.srv
+@@ -116,6 +116,13 @@ case "${gdbserver_host}" in
+ srv_tgtobj="$srv_linux_obj linux-ia64-low.o"
+ srv_linux_usrregs=yes
+ ;;
++ loongarch*-*-linux*) srv_tgtobj="arch/loongarch.o arch/loongarch-linux-nat.o"
++ srv_tgtobj="${srv_tgtobj} linux-loongarch-low.o"
++ srv_tgtobj="${srv_tgtobj} ${srv_linux_obj}"
++ srv_linux_regsets=yes
++ srv_linux_usrregs=yes
++ srv_linux_thread_db=yes
++ ;;
+ m68*-*-linux*) if test "$gdb_cv_m68k_is_coldfire" = yes; then
+ srv_regobj=reg-cf.o
+ else
+diff --git gdb-10.2/gdbserver/linux-loongarch-low.cc gdb-10.2/gdbserver/linux-loongarch-low.cc
+new file mode 100644
+index 0000000..cd8ad6e
+--- /dev/null
++++ gdb-10.2/gdbserver/linux-loongarch-low.cc
+@@ -0,0 +1,284 @@
++/* GNU/Linux/LoongArch specific low level interface, for the remote server
++ for GDB.
++ Copyright (C) 2022 Free Software Foundation, Inc.
++
++ This file is part of GDB.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program. If not, see <http://www.gnu.org/licenses/>. */
++
++#include "server.h"
++#include "linux-low.h"
++#include "tdesc.h"
++#include "elf/common.h"
++#include "arch/loongarch-linux-nat.h"
++
++/* Linux target op definitions for the LoongArch architecture. */
++
++class loongarch_target : public linux_process_target
++{
++public:
++
++ const regs_info *get_regs_info () override;
++
++ int breakpoint_kind_from_pc (CORE_ADDR *pcptr) override;
++
++ const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override;
++
++protected:
++
++ void low_arch_setup () override;
++
++ bool low_cannot_fetch_register (int regno) override;
++
++ bool low_cannot_store_register (int regno) override;
++
++ bool low_fetch_register (regcache *regcache, int regno) override;
++
++ bool low_supports_breakpoints () override;
++
++ CORE_ADDR low_get_pc (regcache *regcache) override;
++
++ void low_set_pc (regcache *regcache, CORE_ADDR newpc) override;
++
++ bool low_breakpoint_at (CORE_ADDR pc) override;
++};
++
++/* The singleton target ops object. */
++
++static loongarch_target the_loongarch_target;
++
++bool
++loongarch_target::low_cannot_fetch_register (int regno)
++{
++ gdb_assert_not_reached ("linux target op low_cannot_fetch_register "
++ "is not implemented by the target");
++}
++
++bool
++loongarch_target::low_cannot_store_register (int regno)
++{
++ gdb_assert_not_reached ("linux target op low_cannot_store_register "
++ "is not implemented by the target");
++}
++
++/* Implementation of linux target ops method "low_arch_setup". */
++
++void
++loongarch_target::low_arch_setup ()
++{
++ static const char *expedite_regs[] = { "r3", "pc", NULL };
++ int pid = lwpid_of (current_thread);
++ struct target_desc *tdesc = loongarch_linux_read_description_runtime (pid);
++
++ if (!tdesc->expedite_regs)
++ init_target_desc (tdesc, expedite_regs);
++ current_process ()->tdesc = tdesc;
++}
++
++/* Collect GPRs from REGCACHE into BUF. */
++
++static void
++loongarch_fill_gregset (struct regcache *regcache, void *buf)
++{
++ const struct target_desc *tdesc = regcache->tdesc;
++ elf_gregset_t *regset = (elf_gregset_t *) buf;
++ int regno = find_regno (tdesc, "r0");
++ int i;
++
++ for (i = 1; i < 32; i++)
++ collect_register (regcache, regno + i, *regset + i);
++ collect_register_by_name (regcache, "orig_a0", *regset + 32);
++ collect_register_by_name (regcache, "pc", *regset + 33);
++ collect_register_by_name (regcache, "badv", *regset + 34);
++}
++
++/* Supply GPRs from BUF into REGCACHE. */
++
++static void
++loongarch_store_gregset (struct regcache *regcache, const void *buf)
++{
++ const struct target_desc *tdesc = regcache->tdesc;
++ const elf_gregset_t *regset = (const elf_gregset_t *) buf;
++ int regno = find_regno (tdesc, "r0");
++ int i;
++
++ supply_register_zeroed (regcache, regno);
++ for (i = 1; i < 32; i++)
++ supply_register (regcache, regno + i, *regset + i);
++ supply_register_by_name (regcache, "orig_a0", *regset + 32);
++ supply_register_by_name (regcache, "pc", *regset + 33);
++ supply_register_by_name (regcache, "badv", *regset + 34);
++}
++
++/* Collect FPRs from REGCACHE into BUF. */
++
++static void
++loongarch_fill_fpregset (struct regcache *regcache, void *buf)
++{
++ const struct target_desc *tdesc = regcache->tdesc;
++ int f = find_regno (tdesc, "f0");
++ int fcc = find_regno (tdesc, "fcc0");
++ int flen = register_size (regcache->tdesc, f);
++ gdb_byte *regbuf = (gdb_byte *) buf;
++ int i;
++
++ for (i = 0; i < ELF_NFPREG - 2; i++, regbuf += flen)
++ collect_register (regcache, f + i, regbuf);
++ for (i = 0; i < 8; i++)
++ collect_register (regcache, fcc + i, regbuf++);
++ collect_register_by_name (regcache, "fcsr", regbuf);
++}
++
++/* Supply FPRs from BUF into REGCACHE. */
++
++static void
++loongarch_store_fpregset (struct regcache *regcache, const void *buf)
++{
++ const struct target_desc *tdesc = regcache->tdesc;
++ int f = find_regno (tdesc, "f0");
++ int fcc = find_regno (tdesc, "fcc0");
++ int flen = register_size (regcache->tdesc, f);
++ const gdb_byte *regbuf = (const gdb_byte *) buf;
++ int i;
++
++ for (i = 0; i < ELF_NFPREG - 2; i++, regbuf += flen)
++ supply_register (regcache, f + i, regbuf);
++ for (i = 0; i < 8; i++)
++ supply_register (regcache, fcc + i, regbuf++);
++ supply_register_by_name (regcache, "fcsr", regbuf);
++}
++
++/* LoongArch/Linux regsets. */
++static struct regset_info loongarch_regsets[] = {
++ { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_PRSTATUS, sizeof (elf_gregset_t),
++ GENERAL_REGS, loongarch_fill_gregset, loongarch_store_gregset },
++ { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_FPREGSET, sizeof (elf_fpregset_t),
++ FP_REGS, loongarch_fill_fpregset, loongarch_store_fpregset },
++ NULL_REGSET
++};
++
++/* LoongArch/Linux regset information. */
++static struct regsets_info loongarch_regsets_info =
++ {
++ loongarch_regsets, /* regsets */
++ 0, /* num_regsets */
++ NULL, /* disabled_regsets */
++ };
++
++/* Definition of linux_target_ops data member "regs_info". */
++static struct regs_info loongarch_regs =
++ {
++ NULL, /* regset_bitmap */
++ NULL, /* usrregs */
++ &loongarch_regsets_info,
++ };
++
++/* Implementation of linux target ops method "get_regs_info". */
++
++const regs_info *
++loongarch_target::get_regs_info ()
++{
++ return &loongarch_regs;
++}
++
++/* Implementation of linux target ops method "low_fetch_register". */
++
++bool
++loongarch_target::low_fetch_register (regcache *regcache, int regno)
++{
++ const struct target_desc *tdesc = regcache->tdesc;
++
++ if (regno != find_regno (tdesc, "r0"))
++ return false;
++ supply_register_zeroed (regcache, regno);
++ return true;
++}
++
++bool
++loongarch_target::low_supports_breakpoints ()
++{
++ return true;
++}
++
++/* Implementation of linux target ops method "low_get_pc". */
++
++CORE_ADDR
++loongarch_target::low_get_pc (regcache *regcache)
++{
++ if (register_size (regcache->tdesc, 0) == 8)
++ return linux_get_pc_64bit (regcache);
++ else
++ return linux_get_pc_32bit (regcache);
++}
++
++/* Implementation of linux target ops method "low_set_pc". */
++
++void
++loongarch_target::low_set_pc (regcache *regcache, CORE_ADDR newpc)
++{
++ if (register_size (regcache->tdesc, 0) == 8)
++ linux_set_pc_64bit (regcache, newpc);
++ else
++ linux_set_pc_32bit (regcache, newpc);
++}
++
++#define loongarch_breakpoint_len 4
++
++/* LoongArch BRK software debug mode instruction.
++ This instruction needs to match gdb/loongarch-tdep.c
++ (loongarch_default_breakpoint). */
++static const gdb_byte loongarch_breakpoint[] = {0x05, 0x00, 0x2a, 0x00};
++
++/* Implementation of target ops method "breakpoint_kind_from_pc". */
++
++int
++loongarch_target::breakpoint_kind_from_pc (CORE_ADDR *pcptr)
++{
++ return loongarch_breakpoint_len;
++}
++
++/* Implementation of target ops method "sw_breakpoint_from_kind". */
++
++const gdb_byte *
++loongarch_target::sw_breakpoint_from_kind (int kind, int *size)
++{
++ *size = loongarch_breakpoint_len;
++ return (const gdb_byte *) &loongarch_breakpoint;
++}
++
++/* Implementation of linux target ops method "low_breakpoint_at". */
++
++bool
++loongarch_target::low_breakpoint_at (CORE_ADDR pc)
++{
++ gdb_byte insn[loongarch_breakpoint_len];
++
++ read_memory (pc, (unsigned char *) &insn, loongarch_breakpoint_len);
++ if (memcmp (insn, loongarch_breakpoint, loongarch_breakpoint_len) == 0)
++ return true;
++
++ return false;
++}
++
++/* The linux target ops object. */
++
++linux_process_target *the_linux_target = &the_loongarch_target;
++
++/* Initialize the LoongArch/Linux target. */
++
++void
++initialize_low_arch ()
++{
++ initialize_regsets_info (&loongarch_regsets_info);
++}
+diff --git gdb-10.2/include/dis-asm.h gdb-10.2/include/dis-asm.h
+index 0532cef..ce43595 100644
+--- gdb-10.2/include/dis-asm.h
++++ gdb-10.2/include/dis-asm.h
+@@ -303,6 +303,7 @@ extern void print_arm_disassembler_options (FILE *);
+ extern void print_arc_disassembler_options (FILE *);
+ extern void print_s390_disassembler_options (FILE *);
+ extern void print_wasm32_disassembler_options (FILE *);
++extern void print_loongarch_disassembler_options (FILE *);
+ extern bfd_boolean aarch64_symbol_is_valid (asymbol *, struct disassemble_info *);
+ extern bfd_boolean arm_symbol_is_valid (asymbol *, struct disassemble_info *);
+ extern bfd_boolean csky_symbol_is_valid (asymbol *, struct disassemble_info *);
+diff --git gdb-10.2/include/elf/common.h gdb-10.2/include/elf/common.h
+index 571e21a..9296080 100644
+--- gdb-10.2/include/elf/common.h
++++ gdb-10.2/include/elf/common.h
+@@ -342,6 +342,7 @@
+ #define EM_BPF 247 /* Linux BPF – in-kernel virtual machine. */
+ #define EM_NFP 250 /* Netronome Flow Processor. */
+ #define EM_CSKY 252 /* C-SKY processor family. */
++#define EM_LOONGARCH 258 /* LoongArch */
+
+ /* If it is necessary to assign new unofficial EM_* values, please pick large
+ random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision
+@@ -662,6 +663,19 @@
+ /* note name must be "LINUX". */
+ #define NT_ARC_V2 0x600 /* ARC HS accumulator/extra registers. */
+ /* note name must be "LINUX". */
++#define NT_LARCH_CPUCFG 0xa00 /* LoongArch CPU config registers */
++ /* note name must be "LINUX". */
++#define NT_LARCH_CSR 0xa01 /* LoongArch Control State Registers */
++ /* note name must be "LINUX". */
++#define NT_LARCH_LSX 0xa02 /* LoongArch SIMD eXtension registers */
++ /* note name must be "LINUX". */
++#define NT_LARCH_LASX 0xa03 /* LoongArch Advanced SIMD eXtension registers */
++ /* note name must be "LINUX". */
++#define NT_LARCH_LBT 0xa04 /* LoongArch Binary Translation registers */
++ /* note name must be "CORE". */
++#define NT_RISCV_CSR 0x900 /* RISC-V Control and Status Registers */
++ /* note name must be "LINUX". */
++
+ #define NT_SIGINFO 0x53494749 /* Fields of siginfo_t. */
+ #define NT_FILE 0x46494c45 /* Description of mapped files. */
+
+diff --git gdb-10.2/include/elf/loongarch.h gdb-10.2/include/elf/loongarch.h
+new file mode 100644
+index 0000000..74757b8
+--- /dev/null
++++ gdb-10.2/include/elf/loongarch.h
+@@ -0,0 +1,267 @@
++/* Copyright (C) 2021-2022 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GNU Binutils.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the license, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++
++#ifndef _ELF_LOONGARCH_H
++#define _ELF_LOONGARCH_H
++
++#include "elf/reloc-macros.h"
++#include "libiberty.h"
++
++START_RELOC_NUMBERS (elf_loongarch_reloc_type)
++/* Used by the dynamic linker. */
++RELOC_NUMBER (R_LARCH_NONE, 0)
++RELOC_NUMBER (R_LARCH_32, 1)
++RELOC_NUMBER (R_LARCH_64, 2)
++RELOC_NUMBER (R_LARCH_RELATIVE, 3)
++RELOC_NUMBER (R_LARCH_COPY, 4)
++RELOC_NUMBER (R_LARCH_JUMP_SLOT, 5)
++RELOC_NUMBER (R_LARCH_TLS_DTPMOD32, 6)
++RELOC_NUMBER (R_LARCH_TLS_DTPMOD64, 7)
++RELOC_NUMBER (R_LARCH_TLS_DTPREL32, 8)
++RELOC_NUMBER (R_LARCH_TLS_DTPREL64, 9)
++RELOC_NUMBER (R_LARCH_TLS_TPREL32, 10)
++RELOC_NUMBER (R_LARCH_TLS_TPREL64, 11)
++RELOC_NUMBER (R_LARCH_IRELATIVE, 12)
++
++/* Reserved for future relocs that the dynamic linker must understand. */
++
++/* Used by the static linker for relocating .text. */
++RELOC_NUMBER (R_LARCH_MARK_LA, 20)
++RELOC_NUMBER (R_LARCH_MARK_PCREL, 21)
++
++RELOC_NUMBER (R_LARCH_SOP_PUSH_PCREL, 22)
++
++RELOC_NUMBER (R_LARCH_SOP_PUSH_ABSOLUTE, 23)
++
++RELOC_NUMBER (R_LARCH_SOP_PUSH_DUP, 24)
++RELOC_NUMBER (R_LARCH_SOP_PUSH_GPREL, 25)
++RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_TPREL, 26)
++RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_GOT, 27)
++RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_GD, 28)
++RELOC_NUMBER (R_LARCH_SOP_PUSH_PLT_PCREL, 29)
++
++RELOC_NUMBER (R_LARCH_SOP_ASSERT, 30)
++RELOC_NUMBER (R_LARCH_SOP_NOT, 31)
++RELOC_NUMBER (R_LARCH_SOP_SUB, 32)
++RELOC_NUMBER (R_LARCH_SOP_SL, 33)
++RELOC_NUMBER (R_LARCH_SOP_SR, 34)
++RELOC_NUMBER (R_LARCH_SOP_ADD, 35)
++RELOC_NUMBER (R_LARCH_SOP_AND, 36)
++RELOC_NUMBER (R_LARCH_SOP_IF_ELSE, 37)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_5, 38)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_U_10_12, 39)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_12, 40)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_16, 41)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_16_S2, 42)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_5_20, 43)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_0_5_10_16_S2, 44)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, 45)
++RELOC_NUMBER (R_LARCH_SOP_POP_32_U, 46)
++
++/* Used by the static linker for relocating non .text. */
++RELOC_NUMBER (R_LARCH_ADD8, 47)
++RELOC_NUMBER (R_LARCH_ADD16, 48)
++RELOC_NUMBER (R_LARCH_ADD24, 49)
++RELOC_NUMBER (R_LARCH_ADD32, 50)
++RELOC_NUMBER (R_LARCH_ADD64, 51)
++RELOC_NUMBER (R_LARCH_SUB8, 52)
++RELOC_NUMBER (R_LARCH_SUB16, 53)
++RELOC_NUMBER (R_LARCH_SUB24, 54)
++RELOC_NUMBER (R_LARCH_SUB32, 55)
++RELOC_NUMBER (R_LARCH_SUB64, 56)
++
++/* I don't know what it is. Existing in almost all other arch. */
++RELOC_NUMBER (R_LARCH_GNU_VTINHERIT, 57)
++RELOC_NUMBER (R_LARCH_GNU_VTENTRY, 58)
++
++
++/* B16:
++ beq/bne/blt/bge/bltu/bgeu/jirl
++ %b16 (sym). */
++RELOC_NUMBER (R_LARCH_B16, 64)
++/* B21:
++ beqz/bnez
++ %b16 (sym). */
++RELOC_NUMBER (R_LARCH_B21, 65)
++/* B26:
++ b/bl
++ %b26 (sym) or %plt (sym). */
++RELOC_NUMBER (R_LARCH_B26, 66)
++
++/* ABS: 32/64
++ lu12i.w
++ %abs_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_ABS_HI20, 67)
++/* ABS: 32/64
++ ori
++ %abs_lo12 (sym). */
++RELOC_NUMBER (R_LARCH_ABS_LO12, 68)
++
++/* ABS: 64
++ lu32i.d
++ %abs64_lo20 (sym). */
++RELOC_NUMBER (R_LARCH_ABS64_LO20, 69)
++/* ABS: 64
++ lu52i.d
++ %abs64_hi12 (sym). */
++RELOC_NUMBER (R_LARCH_ABS64_HI12, 70)
++
++/* PCREL: 32/64
++ pcalau12i
++ %pc_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_PCALA_HI20, 71)
++/* PCREL: 32/64
++ addi.w/addi.d
++ %pc_lo12 (sym). */
++RELOC_NUMBER (R_LARCH_PCALA_LO12, 72)
++/* PCREL: 64
++ lu32i.d
++ %pc64_lo20 (sym). */
++RELOC_NUMBER (R_LARCH_PCALA64_LO20, 73)
++/* PCREL: 64
++ lu52i.d
++ %pc64_hi12 (sym). */
++RELOC_NUMBER (R_LARCH_PCALA64_HI12, 74)
++
++/* GOT: 32/64
++ pcalau12i
++ %got_pc_hi20 (got). */
++RELOC_NUMBER (R_LARCH_GOT_PC_HI20, 75)
++/* GOT: 32/64
++ ld.w/ld.d
++ %got_pc_lo12 (got). */
++RELOC_NUMBER (R_LARCH_GOT_PC_LO12, 76)
++/* GOT: 32/64
++ lu32i.d
++ %got_pc_lo12 (got). */
++RELOC_NUMBER (R_LARCH_GOT64_PC_LO20, 77)
++/* GOT64: PCREL
++ lu52i.d
++ %got64_pc_hi12 (got). */
++RELOC_NUMBER (R_LARCH_GOT64_PC_HI12, 78)
++/* GOT32/64: ABS
++ lu12i.w
++ %got_hi20 (got). */
++RELOC_NUMBER (R_LARCH_GOT_HI20, 79)
++/* GOT: 32/64: ABS
++ ori
++ %got_lo12 (got). */
++RELOC_NUMBER (R_LARCH_GOT_LO12, 80)
++/* GOT64: ABS
++ lu32i.d
++ %got64_lo20 (got). */
++RELOC_NUMBER (R_LARCH_GOT64_LO20, 81)
++/* GOT64: ABS
++ lu52i.d
++ %got64_hi12 (got). */
++RELOC_NUMBER (R_LARCH_GOT64_HI12, 82)
++
++/* TLS-LE: 32/64
++ lu12i.w
++ %le_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_LE_HI20, 83)
++/* TLS-LE: 32/64
++ ori
++ %le_lo12 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_LE_LO12, 84)
++/* TLS-LE: 64
++ lu32i.d
++ %le64_lo20 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_LE64_LO20, 85)
++/* TLS-LE: 64
++ lu52i.d
++ %le64_hi12 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_LE64_HI12, 86)
++
++/* TLS-IE: 32/64
++ pcalau12i
++ %ie_pc_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_IE_PC_HI20, 87)
++RELOC_NUMBER (R_LARCH_TLS_IE_PC_LO12, 88)
++RELOC_NUMBER (R_LARCH_TLS_IE64_PC_LO20, 89)
++RELOC_NUMBER (R_LARCH_TLS_IE64_PC_HI12, 90)
++
++/* TLS-IE: 32/64: ABS
++ lu12i.w
++ %ie_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_IE_HI20, 91)
++RELOC_NUMBER (R_LARCH_TLS_IE_LO12, 92)
++RELOC_NUMBER (R_LARCH_TLS_IE64_LO20, 93)
++RELOC_NUMBER (R_LARCH_TLS_IE64_HI12, 94)
++
++/* TLS-LD: 32/64
++ pcalau12i
++ %ld_pc_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_LD_PC_HI20, 95)
++/* TLS-LD: 32/64: ABS
++ lu12i.w
++ %ld_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_LD_HI20, 96)
++
++/* TLS-GD: 32/64
++ pcalau12i
++ %gd_pc_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_GD_PC_HI20, 97)
++/* TLS-GD: 32/64: ABS
++ lu12i.w
++ %gd_hi20 (sym). */
++RELOC_NUMBER (R_LARCH_TLS_GD_HI20, 98)
++
++/* For eh_frame and debug info. */
++RELOC_NUMBER (R_LARCH_32_PCREL, 99)
++
++/* RELAX. */
++RELOC_NUMBER (R_LARCH_RELAX, 100)
++
++END_RELOC_NUMBERS (R_LARCH_count)
++
++/* Processor specific flags for the ELF header e_flags field. */
++/*The flag lp64s/lp64f/lp64d/ilp32s/ilp32f/ilp32d 3bits. */
++#define EF_LOONGARCH_ABI_LP64_SOFT_FLOAT 0x1
++#define EF_LOONGARCH_ABI_LP64_SINGLE_FLOAT 0x2
++#define EF_LOONGARCH_ABI_LP64_DOUBLE_FLOAT 0x3
++
++#define EF_LOONGARCH_ABI_ILP32_SOFT_FLOAT 0x5
++#define EF_LOONGARCH_ABI_ILP32_SINGLE_FLOAT 0x6
++#define EF_LOONGARCH_ABI_ILP32_DOUBLE_FLOAT 0x7
++
++#define EF_LOONGARCH_ABI_MASK 0x7
++#define EF_LOONGARCH_ABI_ILP32_MASK 0x4
++#define EF_LOONGARCH_ABI_FLOAT_MASK 0x3
++#define EF_LOONGARCH_ABI_SOFT_FLOAT_MASK 0x1
++#define EF_LOONGARCH_ABI_SINGLE_FLOAT_MASK 0x2
++#define EF_LOONGARCH_ABI_DOUBLE_FLOAT_MASK 0x3
++
++#define EF_LOONGARCH_ABI(abi) (EF_LOONGARCH_ABI_MASK & (abi))
++
++#define EF_LOONGARCH_IS_LP64(abi) \
++ (EF_LOONGARCH_ABI(abi) && (!(EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_ILP32_MASK)))
++#define EF_LOONGARCH_IS_ILP32(abi) \
++ (EF_LOONGARCH_ABI(abi) && (EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_ILP32_MASK))
++
++#define EF_LOONGARCH_IS_SOFT_FLOAT(abi) \
++ (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_SOFT_FLOAT_MASK))
++
++#define EF_LOONGARCH_IS_SINGLE_FLOAT(abi) \
++ (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_SINGLE_FLOAT_MASK))
++
++#define EF_LOONGARCH_IS_DOUBLE_FLOAT(abi) \
++ (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_DOUBLE_FLOAT_MASK))
++
++#endif /* _ELF_LOONGARCH_H */
+diff --git gdb-10.2/include/opcode/loongarch.h gdb-10.2/include/opcode/loongarch.h
+new file mode 100644
+index 0000000..c392234
+--- /dev/null
++++ gdb-10.2/include/opcode/loongarch.h
+@@ -0,0 +1,239 @@
++/* LoongArch assembler/disassembler support.
++
++ Copyright (C) 2021-2022 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of GNU Binutils.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3 of the license, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++
++#ifndef _LOONGARCH_H_
++#define _LOONGARCH_H_
++#include <stdint.h>
++
++#ifdef __cplusplus
++extern "C"
++{
++#endif
++
++ typedef uint32_t insn_t;
++
++ struct loongarch_opcode
++ {
++ const insn_t match;
++ const insn_t mask; /* High 1 byte is main opcode and it must be 0xf. */
++#define LARCH_INSN_OPC(insn) ((insn & 0xf0000000) >> 28)
++ const char *const name;
++
++ /* ACTUAL PARAMETER:
++
++ // BNF with regular expression.
++args : token* end
++
++ // just few char separate 'iden'
++token : ','
++| '('
++| ')'
++| iden // maybe a label (include at least one alphabet),
++ maybe a number, maybe a expr
++| regname
++
++regname : '$' iden
++
++iden : [a-zA-Z0-9\.\+\-]+
++
++end : '\0'
++
++
++FORMAT: A string to describe the format of actual parameter including
++bit field infomation. For example, "r5:5,r0:5,sr10:16<<2" matches
++"$12,$13,12345" and "$4,$7,a_label". That 'sr' means the instruction
++may need relocate. '10:16' means bit field of instruction.
++In a 'format', every 'escape's can be replaced to 'iden' or 'regname'
++acrroding to its meaning. We fill all information needed by
++disassembing and assembing to 'format'.
++
++ // BNF with regular expression.
++format : escape (literal+ escape)* literal* end
++| (literal+ escape)* literal* end
++
++end : '\0' // Get here means parse end.
++
++ // The intersection between any two among FIRST (end), FIRST
++ // (literal) and FIRST (escape) must be empty.
++ // So we can build a simple parser.
++literal : ','
++| '('
++| ')'
++
++ // Double '<'s means the real number is the immediate after shifting left.
++escape : esc_ch bit_field '<' '<' dec2
++| esc_ch bit_field
++| esc_ch // for MACRO. non-macro format must indicate 'bit_field'
++
++ // '|' means to concatenate nonadjacent bit fields
++ // For example, "10:16|0:4" means
++ // "16 bits starting from the 10th bit concatenating with 4 bits
++ // starting from the 0th bit".
++ // This is to say "[25..10]||[3..0]" (little endian).
++b_field : dec2 ':' dec2
++| dec2 ':' dec2 '|' bit_field
++
++esc_ch : 's' 'r' // signed immediate or label need relocate
++| 's' // signed immediate no need relocate
++| 'u' // unsigned immediate
++| 'l' // label needed relocate
++| 'r' // general purpose registers
++| 'f' // FPU registers
++| 'v' // 128 bit SIMD register
++| 'x' // 256 bit SIMD register
++
++dec2 : [1-9][0-9]?
++| 0
++
++*/
++ const char *const format;
++
++ /* MACRO: Indicate how a macro instruction expand for assembling.
++ The main is to replace the '%num'(means the 'num'th 'escape' in
++ 'format') in 'macro' string to get the real instruction.
++
++ Maybe need
++ */
++ const char *const macro;
++ const int *include;
++ const int *exclude;
++
++ const unsigned long pinfo;
++#define USELESS 0x0l
++ };
++
++ struct hash_control;
++
++ struct loongarch_ase
++ {
++ const int *enabled;
++ struct loongarch_opcode *const opcodes;
++ const int *include;
++ const int *exclude;
++
++ /* For disassemble to create main opcode hash table. */
++ const struct loongarch_opcode *opc_htab[16];
++ unsigned char opc_htab_inited;
++
++ /* For GAS to create hash table. */
++ struct htab *name_hash_entry;
++ };
++
++ extern int is_unsigned (const char *);
++ extern int is_signed (const char *);
++ extern int is_branch_label (const char *);
++
++ extern int loongarch_get_bit_field_width (const char *bit_field, char **end);
++ extern int32_t loongarch_decode_imm (const char *bit_field, insn_t insn,
++ int si);
++
++#define MAX_ARG_NUM_PLUS_2 9
++
++ extern size_t loongarch_split_args_by_comma (char *args,
++ const char *arg_strs[]);
++ extern char *loongarch_cat_splited_strs (const char *arg_strs[]);
++ extern insn_t loongarch_foreach_args (
++ const char *format, const char *arg_strs[],
++ int32_t (*helper) (char esc1, char esc2, const char *bit_field,
++ const char *arg, void *context),
++ void *context);
++
++ extern int loongarch_check_format (const char *format);
++ extern int loongarch_check_macro (const char *format, const char *macro);
++
++ extern char *loongarch_expand_macro_with_format_map (
++ const char *format, const char *macro, const char *const arg_strs[],
++ const char *(*map) (char esc1, char esc2, const char *arg),
++ char *(*helper) (const char *const arg_strs[], void *context),
++ void *context, size_t len_str);
++ extern char *loongarch_expand_macro (
++ const char *macro, const char *const arg_strs[],
++ char *(*helper) (const char *const arg_strs[], void *context),
++ void *context, size_t len_str);
++ extern size_t loongarch_bits_imm_needed (int64_t imm, int si);
++
++ extern void loongarch_eliminate_adjacent_repeat_char (char *dest, char c);
++
++ extern int loongarch_parse_dis_options (const char *opts_in);
++ extern void loongarch_disassemble_one (
++ int64_t pc, insn_t insn,
++ int (*fprintf_func) (void *stream, const char *format, ...), void *stream);
++
++ extern const char *const loongarch_r_normal_name[32];
++ extern const char *const loongarch_r_lp64_name[32];
++ extern const char *const loongarch_r_lp64_name1[32];
++ extern const char *const loongarch_f_normal_name[32];
++ extern const char *const loongarch_f_lp64_name[32];
++ extern const char *const loongarch_f_lp64_name1[32];
++ extern const char *const loongarch_c_normal_name[8];
++ extern const char *const loongarch_cr_normal_name[4];
++ extern const char *const loongarch_v_normal_name[32];
++ extern const char *const loongarch_x_normal_name[32];
++
++ extern struct loongarch_ase loongarch_ASEs[];
++
++ extern struct loongarch_ASEs_option
++ {
++ struct opt_abi
++ {
++ int elf_abi;
++ } abi;
++#define ase_abi abi.elf_abi
++
++ struct opt_isa
++ {
++ int use_ilp32;
++ int use_lp64;
++
++ int use_soft_float;
++ int use_single_float;
++ int use_double_float;
++
++ int use_lsx;
++ int use_lasx;
++
++ int use_la_local_with_abs;
++ int use_la_global_with_pcrel;
++ int use_la_global_with_abs;
++ } isa;
++#define ase_ilp32 isa.use_ilp32
++#define ase_lp64 isa.use_lp64
++
++#define ase_nf isa.use_soft_float
++#define ase_sf isa.use_single_float
++#define ase_df isa.use_double_float
++
++#define ase_lsx isa.use_lsx
++#define ase_lasx isa.use_lasx
++
++#define ase_labs isa.use_la_local_with_abs
++#define ase_gpcr isa.use_la_global_with_pcrel
++#define ase_gabs isa.use_la_global_with_abs
++
++ } LARCH_opts;
++
++ extern size_t loongarch_insn_length (insn_t insn);
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* _LOONGARCH_H_ */
+diff --git gdb-10.2/opcodes/Makefile.am gdb-10.2/opcodes/Makefile.am
+index 7318bf0..c9139e5 100644
+--- gdb-10.2/opcodes/Makefile.am
++++ gdb-10.2/opcodes/Makefile.am
+@@ -162,6 +162,9 @@ TARGET_LIBOPCODES_CFILES = \
+ lm32-ibld.c \
+ lm32-opc.c \
+ lm32-opinst.c \
++ loongarch-opc.c \
++ loongarch-dis.c \
++ loongarch-coder.c \
+ m10200-dis.c \
+ m10200-opc.c \
+ m10300-dis.c \
+diff --git gdb-10.2/opcodes/Makefile.in gdb-10.2/opcodes/Makefile.in
+index ddb9346..19a90fb 100644
+--- gdb-10.2/opcodes/Makefile.in
++++ gdb-10.2/opcodes/Makefile.in
+@@ -552,6 +552,9 @@ TARGET_LIBOPCODES_CFILES = \
+ lm32-ibld.c \
+ lm32-opc.c \
+ lm32-opinst.c \
++ loongarch-opc.c \
++ loongarch-dis.c \
++ loongarch-coder.c \
+ m10200-dis.c \
+ m10200-opc.c \
+ m10300-dis.c \
+@@ -966,6 +969,9 @@ distclean-compile:
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lm32-ibld.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lm32-opc.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lm32-opinst.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/loongarch-coder.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/loongarch-dis.Plo@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/loongarch-opc.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m10200-dis.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m10200-opc.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m10300-dis.Plo@am__quote@
+diff --git gdb-10.2/opcodes/configure gdb-10.2/opcodes/configure
+index e448c9e..68380ae 100755
+--- gdb-10.2/opcodes/configure
++++ gdb-10.2/opcodes/configure
+@@ -12949,6 +12949,7 @@ if test x${all_targets} = xfalse ; then
+ bfd_z80_arch) ta="$ta z80-dis.lo" ;;
+ bfd_z8k_arch) ta="$ta z8k-dis.lo" ;;
+ bfd_bpf_arch) ta="$ta bpf-asm.lo bpf-desc.lo bpf-dis.lo bpf-ibld.lo bpf-opc.lo" using_cgen=yes ;;
++ bfd_loongarch_arch) ta="$ta loongarch-dis.lo loongarch-opc.lo loongarch-coder.lo" ;;
+
+ "") ;;
+ *) as_fn_error $? "*** unknown target architecture $arch" "$LINENO" 5 ;;
+diff --git gdb-10.2/opcodes/configure.ac gdb-10.2/opcodes/configure.ac
+index 00be9c8..434cc2f 100644
+--- gdb-10.2/opcodes/configure.ac
++++ gdb-10.2/opcodes/configure.ac
+@@ -340,6 +340,7 @@ if test x${all_targets} = xfalse ; then
+ bfd_z80_arch) ta="$ta z80-dis.lo" ;;
+ bfd_z8k_arch) ta="$ta z8k-dis.lo" ;;
+ bfd_bpf_arch) ta="$ta bpf-asm.lo bpf-desc.lo bpf-dis.lo bpf-ibld.lo bpf-opc.lo" using_cgen=yes ;;
++ bfd_loongarch_arch) ta="$ta loongarch-dis.lo loongarch-opc.lo loongarch-coder.lo" ;;
+
+ "") ;;
+ *) AC_MSG_ERROR(*** unknown target architecture $arch) ;;
+diff --git gdb-10.2/opcodes/disassemble.c gdb-10.2/opcodes/disassemble.c
+index 290dcdd..eec560e 100644
+--- gdb-10.2/opcodes/disassemble.c
++++ gdb-10.2/opcodes/disassemble.c
+@@ -49,6 +49,7 @@
+ #define ARCH_ip2k
+ #define ARCH_iq2000
+ #define ARCH_lm32
++#define ARCH_loongarch
+ #define ARCH_m32c
+ #define ARCH_m32r
+ #define ARCH_m68hc11
+@@ -551,6 +552,11 @@ disassembler (enum bfd_architecture a,
+ case bfd_arch_tilepro:
+ disassemble = print_insn_tilepro;
+ break;
++#endif
++#ifdef ARCH_loongarch
++ case bfd_arch_loongarch:
++ disassemble = print_insn_loongarch;
++ break;
+ #endif
+ default:
+ return 0;
+@@ -591,6 +597,9 @@ disassembler_usage (FILE *stream ATTRIBUTE_UNUSED)
+ #ifdef ARCH_wasm32
+ print_wasm32_disassembler_options (stream);
+ #endif
++#ifdef ARCH_loongarch
++ print_loongarch_disassembler_options (stream);
++#endif
+
+ return;
+ }
+diff --git gdb-10.2/opcodes/disassemble.h gdb-10.2/opcodes/disassemble.h
+index 89db886..cc529c9 100644
+--- gdb-10.2/opcodes/disassemble.h
++++ gdb-10.2/opcodes/disassemble.h
+@@ -100,6 +100,7 @@ extern int print_insn_xtensa (bfd_vma, disassemble_info *);
+ extern int print_insn_z80 (bfd_vma, disassemble_info *);
+ extern int print_insn_z8001 (bfd_vma, disassemble_info *);
+ extern int print_insn_z8002 (bfd_vma, disassemble_info *);
++extern int print_insn_loongarch (bfd_vma, disassemble_info *);
+
+ extern disassembler_ftype csky_get_disassembler (bfd *);
+ extern disassembler_ftype rl78_get_disassembler (bfd *);
+diff --git gdb-10.2/opcodes/loongarch-coder.c gdb-10.2/opcodes/loongarch-coder.c
+new file mode 100644
+index 0000000..f5e10b9
+--- /dev/null
++++ gdb-10.2/opcodes/loongarch-coder.c
+@@ -0,0 +1,481 @@
++/* LoongArch opcode support.
++ Copyright (C) 2021-2022 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of the GNU opcodes library.
++
++ This library is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3, or (at your option)
++ any later version.
++
++ It is distributed in the hope that it will be useful, but WITHOUT
++ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
++ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
++ License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++#include "sysdep.h"
++#include "opcode/loongarch.h"
++
++int
++is_unsigned (const char *c_str)
++{
++ if (c_str[0] == '0' && (c_str[1] == 'x' || c_str[1] == 'X'))
++ {
++ c_str += 2;
++ while (('a' <= *c_str && *c_str <= 'f')
++ || ('A' <= *c_str && *c_str <= 'F')
++ || ('0' <= *c_str && *c_str <= '9'))
++ c_str++;
++ }
++ else if (*c_str == '\0')
++ return 0;
++ else
++ while ('0' <= *c_str && *c_str <= '9')
++ c_str++;
++ return *c_str == '\0';
++}
++
++int
++is_signed (const char *c_str)
++{
++ return *c_str == '-' ? is_unsigned (c_str + 1) : is_unsigned (c_str);
++}
++
++int
++loongarch_get_bit_field_width (const char *bit_field, char **end)
++{
++ int width = 0;
++ char has_specify = 0, *bit_field_1 = (char *) bit_field;
++ if (bit_field_1 && *bit_field_1 != '\0')
++ while (1)
++ {
++ strtol (bit_field_1, &bit_field_1, 10);
++
++ if (*bit_field_1 != ':')
++ break;
++ bit_field_1++;
++
++ width += strtol (bit_field_1, &bit_field_1, 10);
++ has_specify = 1;
++
++ if (*bit_field_1 != '|')
++ break;
++ bit_field_1++;
++ }
++ if (end)
++ *end = bit_field_1;
++ return has_specify ? width : -1;
++}
++
++int32_t
++loongarch_decode_imm (const char *bit_field, insn_t insn, int si)
++{
++ int32_t ret = 0;
++ uint32_t t;
++ int len = 0, width, b_start;
++ char *bit_field_1 = (char *) bit_field;
++ while (1)
++ {
++ b_start = strtol (bit_field_1, &bit_field_1, 10);
++ if (*bit_field_1 != ':')
++ break;
++ width = strtol (bit_field_1 + 1, &bit_field_1, 10);
++ len += width;
++
++ t = insn;
++ t <<= sizeof (t) * 8 - width - b_start;
++ t >>= sizeof (t) * 8 - width;
++ ret <<= width;
++ ret |= t;
++
++ if (*bit_field_1 != '|')
++ break;
++ bit_field_1++;
++ }
++
++ if (*bit_field_1 == '<' && *(++bit_field_1) == '<')
++ {
++ width = atoi (bit_field_1 + 1);
++ ret <<= width;
++ len += width;
++ }
++ else if (*bit_field_1 == '+')
++ ret += atoi (bit_field_1 + 1);
++
++ /* Extend signed bit. */
++ if (si)
++ {
++ uint32_t sign = 1u << (len - 1);
++ ret = (ret ^ sign) - sign;
++ }
++
++ return ret;
++}
++
++static insn_t
++loongarch_encode_imm (const char *bit_field, int32_t imm)
++{
++ char *bit_field_1 = (char *) bit_field;
++ char *t = bit_field_1;
++ int width, b_start;
++ insn_t ret = 0;
++ uint32_t i;
++ uint32_t uimm = (uint32_t)imm;
++
++ width = loongarch_get_bit_field_width (t, &t);
++ if (width == -1)
++ return ret;
++
++ if (*t == '<' && *(++t) == '<')
++ width += atoi (t + 1);
++ else if (*t == '+')
++ uimm -= atoi (t + 1);
++
++ uimm = width ? (uimm << (sizeof (uimm) * 8 - width)) : 0;
++
++ while (1)
++ {
++ b_start = strtol (bit_field_1, &bit_field_1, 10);
++ if (*bit_field_1 != ':')
++ break;
++ width = strtol (bit_field_1 + 1, &bit_field_1, 10);
++ i = uimm;
++ i = width ? (i >> (sizeof (i) * 8 - width)) : 0;
++ i = (b_start == 32) ? 0 : (i << b_start);
++ ret |= i;
++ uimm = (width == 32) ? 0 : (uimm << width);
++
++ if (*bit_field_1 != '|')
++ break;
++ bit_field_1++;
++ }
++ return ret;
++}
++
++/* Parse such FORMAT
++ ""
++ "u"
++ "v0:5,r5:5,s10:10<<2"
++ "r0:5,r5:5,r10:5,u15:2+1"
++ "r,r,u0:5+32,u0:5+1"
++*/
++static int
++loongarch_parse_format (const char *format, char *esc1s, char *esc2s,
++ const char **bit_fields)
++{
++ size_t arg_num = 0;
++
++ if (*format == '\0')
++ goto end;
++
++ while (1)
++ {
++ /* esc1 esc2
++ for "[a-zA-Z][a-zA-Z]?" */
++ if (('a' <= *format && *format <= 'z')
++ || ('A' <= *format && *format <= 'Z'))
++ {
++ *esc1s++ = *format++;
++ if (('a' <= *format && *format <= 'z')
++ || ('A' <= *format && *format <= 'Z'))
++ *esc2s++ = *format++;
++ else
++ *esc2s++ = '\0';
++ }
++ else
++ return -1;
++
++ arg_num++;
++ if (MAX_ARG_NUM_PLUS_2 - 2 < arg_num)
++ /* Need larger MAX_ARG_NUM_PLUS_2. */
++ return -1;
++
++ *bit_fields++ = format;
++
++ if ('0' <= *format && *format <= '9')
++ {
++ /* For "[0-9]+:[0-9]+(\|[0-9]+:[0-9]+)*". */
++ while (1)
++ {
++ while ('0' <= *format && *format <= '9')
++ format++;
++
++ if (*format != ':')
++ return -1;
++ format++;
++
++ if (!('0' <= *format && *format <= '9'))
++ return -1;
++ while ('0' <= *format && *format <= '9')
++ format++;
++
++ if (*format != '|')
++ break;
++ format++;
++ }
++
++ /* For "((\+|<<)[1-9][0-9]*)?". */
++ do
++ {
++ if (*format == '+')
++ format++;
++ else if (format[0] == '<' && format[1] == '<')
++ format += 2;
++ else
++ break;
++
++ if (!('1' <= *format && *format <= '9'))
++ return -1;
++ while ('0' <= *format && *format <= '9')
++ format++;
++ }
++ while (0);
++ }
++
++ if (*format == ',')
++ format++;
++ else if (*format == '\0')
++ break;
++ else
++ return -1;
++ }
++
++ end:
++ *esc1s = '\0';
++ return 0;
++}
++
++size_t
++loongarch_split_args_by_comma (char *args, const char *arg_strs[])
++{
++ size_t num = 0;
++
++ if (*args)
++ arg_strs[num++] = args;
++ for (; *args; args++)
++ if (*args == ',')
++ {
++ if (MAX_ARG_NUM_PLUS_2 - 1 == num)
++ break;
++ else
++ *args = '\0', arg_strs[num++] = args + 1;
++ }
++ arg_strs[num] = NULL;
++ return num;
++}
++
++char *
++loongarch_cat_splited_strs (const char *arg_strs[])
++{
++ char *ret;
++ size_t n, l;
++
++ for (l = 0, n = 0; arg_strs[n]; n++)
++ l += strlen (arg_strs[n]);
++ ret = malloc (l + n + 1);
++ if (!ret)
++ return ret;
++
++ ret[0] = '\0';
++ if (0 < n)
++ strcat (ret, arg_strs[0]);
++ for (l = 1; l < n; l++)
++ strcat (ret, ","), strcat (ret, arg_strs[l]);
++ return ret;
++}
++
++insn_t
++loongarch_foreach_args (const char *format, const char *arg_strs[],
++ int32_t (*helper) (char esc1, char esc2,
++ const char *bit_field,
++ const char *arg, void *context),
++ void *context)
++{
++ char esc1s[MAX_ARG_NUM_PLUS_2 - 1], esc2s[MAX_ARG_NUM_PLUS_2 - 1];
++ const char *bit_fields[MAX_ARG_NUM_PLUS_2 - 1];
++ size_t i;
++ insn_t ret = 0;
++ int ok;
++
++ ok = loongarch_parse_format (format, esc1s, esc2s, bit_fields) == 0;
++
++ /* Make sure the num of actual args is equal to the num of escape. */
++ for (i = 0; esc1s[i] && arg_strs[i]; i++)
++ ;
++ ok = ok && !esc1s[i] && !arg_strs[i];
++
++ if (ok && helper)
++ {
++ for (i = 0; arg_strs[i]; i++)
++ ret |= loongarch_encode_imm (bit_fields[i],
++ helper (esc1s[i], esc2s[i],
++ bit_fields[i], arg_strs[i],
++ context));
++ ret |= helper ('\0', '\0', NULL, NULL, context);
++ }
++
++ return ret;
++}
++
++int
++loongarch_check_format (const char *format)
++{
++ char esc1s[MAX_ARG_NUM_PLUS_2 - 1], esc2s[MAX_ARG_NUM_PLUS_2 - 1];
++ const char *bit_fields[MAX_ARG_NUM_PLUS_2 - 1];
++
++ if (!format)
++ return -1;
++
++ return loongarch_parse_format (format, esc1s, esc2s, bit_fields);
++}
++
++int
++loongarch_check_macro (const char *format, const char *macro)
++{
++ int num_of_args;
++ char esc1s[MAX_ARG_NUM_PLUS_2 - 1], esc2s[MAX_ARG_NUM_PLUS_2 - 1];
++ const char *bit_fields[MAX_ARG_NUM_PLUS_2 - 1];
++
++ if (!format || !macro
++ || loongarch_parse_format (format, esc1s, esc2s, bit_fields) != 0)
++ return -1;
++
++ for (num_of_args = 0; esc1s[num_of_args]; num_of_args++)
++ ;
++
++ for (; macro[0]; macro++)
++ if (macro[0] == '%')
++ {
++ macro++;
++ if ('1' <= macro[0] && macro[0] <= '9')
++ {
++ if (num_of_args < macro[0] - '0')
++ /* Out of args num. */
++ return -1;
++ }
++ else if (macro[0] == 'f')
++ ;
++ else if (macro[0] == '%')
++ ;
++ else
++ return -1;
++ }
++ return 0;
++}
++
++static const char *
++I (char esc_ch1 ATTRIBUTE_UNUSED, char esc_ch2 ATTRIBUTE_UNUSED,
++ const char *c_str)
++{
++ return c_str;
++}
++
++char *
++loongarch_expand_macro_with_format_map (
++ const char *format, const char *macro, const char *const arg_strs[],
++ const char *(*map) (char esc1, char esc2, const char *arg),
++ char *(*helper) (const char *const arg_strs[], void *context), void *context,
++ size_t len_str)
++{
++ char esc1s[MAX_ARG_NUM_PLUS_2 - 1], esc2s[MAX_ARG_NUM_PLUS_2 - 1];
++ const char *bit_fields[MAX_ARG_NUM_PLUS_2 - 1];
++ const char *src;
++ char *dest;
++
++ /* The expanded macro character length does not exceed 1000, and number of
++ label is 6 at most in the expanded macro. The len_str is the length of
++ str. */
++ char *buffer =(char *) malloc(1024 + 6 * len_str);
++
++ if (format)
++ loongarch_parse_format (format, esc1s, esc2s, bit_fields);
++
++ src = macro;
++ dest = buffer;
++
++ while (*src)
++ if (*src == '%')
++ {
++ src++;
++ if ('1' <= *src && *src <= '9')
++ {
++ size_t i = *src - '1';
++ const char *t = map (esc1s[i], esc2s[i], arg_strs[i]);
++ while (*t)
++ *dest++ = *t++;
++ }
++ else if (*src == '%')
++ *dest++ = '%';
++ else if (*src == 'f' && helper)
++ {
++ char *b, *t;
++ t = b = (*helper) (arg_strs, context);
++ if (b)
++ {
++ while (*t)
++ *dest++ = *t++;
++ free (b);
++ }
++ }
++ src++;
++ }
++ else
++ *dest++ = *src++;
++
++ *dest = '\0';
++ return buffer;
++}
++
++char *
++loongarch_expand_macro (const char *macro, const char *const arg_strs[],
++ char *(*helper) (const char *const arg_strs[],
++ void *context),
++ void *context, size_t len_str)
++{
++ return loongarch_expand_macro_with_format_map (NULL, macro, arg_strs, I,
++ helper, context, len_str);
++}
++
++size_t
++loongarch_bits_imm_needed (int64_t imm, int si)
++{
++ size_t ret;
++ if (si)
++ {
++ if (imm < 0)
++ {
++ uint64_t uimm = (uint64_t) imm;
++ uint64_t uimax = UINT64_C (1) << 63;
++ for (ret = 0; (uimm & uimax) != 0; uimm <<= 1, ret++)
++ ;
++ ret = 64 - ret + 1;
++ }
++ else
++ ret = loongarch_bits_imm_needed (imm, 0) + 1;
++ }
++ else
++ {
++ uint64_t t = imm;
++ for (ret = 0; t; t >>= 1, ret++)
++ ;
++ }
++ return ret;
++}
++
++void
++loongarch_eliminate_adjacent_repeat_char (char *dest, char c)
++{
++ if (c == '\0')
++ return;
++ char *src = dest;
++ while (*dest)
++ {
++ while (src[0] == c && src[0] == src[1])
++ src++;
++ *dest++ = *src++;
++ }
++}
+diff --git gdb-10.2/opcodes/loongarch-dis.c gdb-10.2/opcodes/loongarch-dis.c
+new file mode 100644
+index 0000000..9dcf989
+--- /dev/null
++++ gdb-10.2/opcodes/loongarch-dis.c
+@@ -0,0 +1,342 @@
++/* LoongArch opcode support.
++ Copyright (C) 2021-2022 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of the GNU opcodes library.
++
++ This library is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3, or (at your option)
++ any later version.
++
++ It is distributed in the hope that it will be useful, but WITHOUT
++ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
++ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
++ License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++
++#include "sysdep.h"
++#include "disassemble.h"
++#include "opintl.h"
++#include "opcode/loongarch.h"
++#include "libiberty.h"
++#include <stdlib.h>
++
++static const struct loongarch_opcode *
++get_loongarch_opcode_by_binfmt (insn_t insn)
++{
++ const struct loongarch_opcode *it;
++ struct loongarch_ase *ase;
++ size_t i;
++ for (ase = loongarch_ASEs; ase->enabled; ase++)
++ {
++ if (!*ase->enabled || (ase->include && !*ase->include)
++ || (ase->exclude && *ase->exclude))
++ continue;
++
++ if (!ase->opc_htab_inited)
++ {
++ for (it = ase->opcodes; it->mask; it++)
++ if (!ase->opc_htab[LARCH_INSN_OPC (it->match)]
++ && it->macro == NULL)
++ ase->opc_htab[LARCH_INSN_OPC (it->match)] = it;
++ for (i = 0; i < 16; i++)
++ if (!ase->opc_htab[i])
++ ase->opc_htab[i] = it;
++ ase->opc_htab_inited = 1;
++ }
++
++ it = ase->opc_htab[LARCH_INSN_OPC (insn)];
++ for (; it->name; it++)
++ if ((insn & it->mask) == it->match && it->mask
++ && !(it->include && !*it->include)
++ && !(it->exclude && *it->exclude))
++ return it;
++ }
++ return NULL;
++}
++
++static const char *const *loongarch_r_disname = NULL;
++static const char *const *loongarch_f_disname = NULL;
++static const char *const *loongarch_c_disname = NULL;
++static const char *const *loongarch_cr_disname = NULL;
++static const char *const *loongarch_v_disname = NULL;
++static const char *const *loongarch_x_disname = NULL;
++
++static void
++set_default_loongarch_dis_options (void)
++{
++ LARCH_opts.ase_ilp32 = 1;
++ LARCH_opts.ase_lp64 = 1;
++ LARCH_opts.ase_sf = 1;
++ LARCH_opts.ase_df = 1;
++ LARCH_opts.ase_lsx = 1;
++ LARCH_opts.ase_lasx = 1;
++
++ loongarch_r_disname = loongarch_r_lp64_name;
++ loongarch_f_disname = loongarch_f_lp64_name;
++ loongarch_c_disname = loongarch_c_normal_name;
++ loongarch_cr_disname = loongarch_cr_normal_name;
++ loongarch_v_disname = loongarch_v_normal_name;
++ loongarch_x_disname = loongarch_x_normal_name;
++}
++
++static int
++parse_loongarch_dis_option (const char *option)
++{
++ if (strcmp (option, "numeric") == 0)
++ {
++ loongarch_r_disname = loongarch_r_normal_name;
++ loongarch_f_disname = loongarch_f_normal_name;
++ }
++ return -1;
++}
++
++static int
++parse_loongarch_dis_options (const char *opts_in)
++{
++ set_default_loongarch_dis_options ();
++
++ if (opts_in == NULL)
++ return 0;
++
++ char *opts, *opt, *opt_end;
++ opts = xmalloc (strlen (opts_in) + 1);
++ strcpy (opts, opts_in);
++
++ for (opt = opt_end = opts; opt_end != NULL; opt = opt_end + 1)
++ {
++ if ((opt_end = strchr (opt, ',')) != NULL)
++ *opt_end = 0;
++ if (parse_loongarch_dis_option (opt) != 0)
++ return -1;
++ }
++ free (opts);
++ return 0;
++}
++
++static int32_t
++dis_one_arg (char esc1, char esc2, const char *bit_field,
++ const char *arg ATTRIBUTE_UNUSED, void *context)
++{
++ static int need_comma = 0;
++ struct disassemble_info *info = context;
++ insn_t insn = *(insn_t *) info->private_data;
++ int32_t imm, u_imm;
++
++ if (esc1)
++ {
++ if (need_comma)
++ info->fprintf_func (info->stream, ", ");
++ need_comma = 1;
++ imm = loongarch_decode_imm (bit_field, insn, 1);
++ u_imm = loongarch_decode_imm (bit_field, insn, 0);
++ }
++
++ switch (esc1)
++ {
++ case 'r':
++ info->fprintf_func (info->stream, "%s", loongarch_r_disname[u_imm]);
++ break;
++ case 'f':
++ info->fprintf_func (info->stream, "%s", loongarch_f_disname[u_imm]);
++ break;
++ case 'c':
++ switch (esc2)
++ {
++ case 'r':
++ info->fprintf_func (info->stream, "%s", loongarch_cr_disname[u_imm]);
++ break;
++ default:
++ info->fprintf_func (info->stream, "%s", loongarch_c_disname[u_imm]);
++ }
++ break;
++ case 'v':
++ info->fprintf_func (info->stream, "%s", loongarch_v_disname[u_imm]);
++ break;
++ case 'x':
++ info->fprintf_func (info->stream, "%s", loongarch_x_disname[u_imm]);
++ break;
++ case 'u':
++ info->fprintf_func (info->stream, "0x%x", u_imm);
++ break;
++ case 's':
++ if (imm == 0)
++ info->fprintf_func (info->stream, "%d", imm);
++ else
++ info->fprintf_func (info->stream, "%d(0x%x)", imm, u_imm);
++ switch (esc2)
++ {
++ case 'b':
++ info->insn_type = dis_branch;
++ info->target += imm;
++ }
++ break;
++ case '\0':
++ need_comma = 0;
++ }
++ return 0;
++}
++
++static void
++disassemble_one (insn_t insn, struct disassemble_info *info)
++{
++ const struct loongarch_opcode *opc = get_loongarch_opcode_by_binfmt (insn);
++
++#ifdef LOONGARCH_DEBUG
++ char have_space[32] = { 0 };
++ insn_t t;
++ int i;
++ const char *t_f = opc ? opc->format : NULL;
++ if (t_f)
++ while (*t_f)
++ {
++ while (('a' <= t_f[0] && t_f[0] <= 'z')
++ || ('A' <= t_f[0] && t_f[0] <= 'Z')
++ || t_f[0] == ',')
++ t_f++;
++ while (1)
++ {
++ i = strtol (t_f, &t_f, 10);
++ have_space[i] = 1;
++ t_f++; /* ':' */
++ i += strtol (t_f, &t_f, 10);
++ have_space[i] = 1;
++ if (t_f[0] == '|')
++ t_f++;
++ else
++ break;
++ }
++ if (t_f[0] == '<')
++ t_f += 2; /* '<' '<' */
++ strtol (t_f, &t_f, 10);
++ }
++
++ have_space[28] = 1;
++ have_space[0] = 0;
++ t = ~((insn_t) -1 >> 1);
++ for (i = 31; 0 <= i; i--)
++ {
++ if (t & insn)
++ info->fprintf_func (info->stream, "1");
++ else
++ info->fprintf_func (info->stream, "0");
++ if (have_space[i])
++ info->fprintf_func (info->stream, " ");
++ t = t >> 1;
++ }
++ info->fprintf_func (info->stream, "\t");
++#endif
++
++ if (!opc)
++ {
++ info->insn_type = dis_noninsn;
++ info->fprintf_func (info->stream, "0x%08x", insn);
++ return;
++ }
++
++ info->insn_type = dis_nonbranch;
++ info->fprintf_func (info->stream, "%-12s", opc->name);
++
++ {
++ char *fake_args = xmalloc (strlen (opc->format) + 1);
++ const char *fake_arg_strs[MAX_ARG_NUM_PLUS_2];
++ strcpy (fake_args, opc->format);
++ if (0 < loongarch_split_args_by_comma (fake_args, fake_arg_strs))
++ info->fprintf_func (info->stream, "\t");
++ info->private_data = &insn;
++ loongarch_foreach_args (opc->format, fake_arg_strs, dis_one_arg, info);
++ free (fake_args);
++ }
++
++ if (info->insn_type == dis_branch || info->insn_type == dis_condbranch
++ /* Someother if we have extra info to print. */)
++ info->fprintf_func (info->stream, "\t#");
++
++ if (info->insn_type == dis_branch || info->insn_type == dis_condbranch)
++ {
++ info->fprintf_func (info->stream, " ");
++ info->print_address_func (info->target, info);
++ }
++}
++
++int
++print_insn_loongarch (bfd_vma memaddr, struct disassemble_info *info)
++{
++ insn_t insn;
++ int status;
++
++ static int not_init_yet = 1;
++ if (not_init_yet)
++ {
++ parse_loongarch_dis_options (info->disassembler_options);
++ not_init_yet = 0;
++ }
++
++ info->bytes_per_chunk = 4;
++ info->bytes_per_line = 4;
++ info->display_endian = BFD_ENDIAN_LITTLE;
++ info->insn_info_valid = 1;
++ info->target = memaddr;
++
++ if ((status = info->read_memory_func (memaddr, (bfd_byte *) &insn,
++ sizeof (insn), info)) != 0)
++ {
++ info->memory_error_func (status, memaddr, info);
++ return -1; /* loongarch_insn_length (0); */
++ }
++
++ disassemble_one (insn, info);
++
++ return loongarch_insn_length (insn);
++}
++
++void
++print_loongarch_disassembler_options (FILE *stream)
++{
++ fprintf (stream, _("\n\
++The following LoongArch disassembler options are supported for use\n\
++with the -M switch (multiple options should be separated by commas):\n"));
++
++ fprintf (stream, _("\n\
++ numeric Print numeric register names, rather than ABI names.\n"));
++ fprintf (stream, _("\n"));
++}
++
++int
++loongarch_parse_dis_options (const char *opts_in)
++{
++ return parse_loongarch_dis_options (opts_in);
++}
++
++static void
++my_print_address_func (bfd_vma addr, struct disassemble_info *dinfo)
++{
++ dinfo->fprintf_func (dinfo->stream, "0x%llx", (long long) addr);
++}
++
++void
++loongarch_disassemble_one (int64_t pc, insn_t insn,
++ int (*fprintf_func) (void *stream,
++ const char *format, ...),
++ void *stream)
++{
++ static struct disassemble_info my_disinfo =
++ {
++ .print_address_func = my_print_address_func,
++ };
++ static int not_init_yet = 1;
++ if (not_init_yet)
++ {
++ loongarch_parse_dis_options (NULL);
++ not_init_yet = 0;
++ }
++
++ my_disinfo.fprintf_func = fprintf_func;
++ my_disinfo.stream = stream;
++ my_disinfo.target = pc;
++ disassemble_one (insn, &my_disinfo);
++}
+diff --git gdb-10.2/opcodes/loongarch-opc.c gdb-10.2/opcodes/loongarch-opc.c
+new file mode 100644
+index 0000000..be0de61
+--- /dev/null
++++ gdb-10.2/opcodes/loongarch-opc.c
+@@ -0,0 +1,870 @@
++/* LoongArch opcode support.
++ Copyright (C) 2021-2022 Free Software Foundation, Inc.
++ Contributed by Loongson Ltd.
++
++ This file is part of the GNU opcodes library.
++
++ This library is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 3, or (at your option)
++ any later version.
++
++ It is distributed in the hope that it will be useful, but WITHOUT
++ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
++ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
++ License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; see the file COPYING3. If not,
++ see <http://www.gnu.org/licenses/>. */
++
++#include <stddef.h>
++#include "opcode/loongarch.h"
++#include "libiberty.h"
++
++struct loongarch_ASEs_option LARCH_opts;
++
++size_t
++loongarch_insn_length (insn_t insn ATTRIBUTE_UNUSED)
++{
++ return 4;
++}
++
++const char *const loongarch_r_normal_name[32] =
++{
++ "$r0", "$r1", "$r2", "$r3", "$r4", "$r5", "$r6", "$r7",
++ "$r8", "$r9", "$r10", "$r11", "$r12", "$r13", "$r14", "$r15",
++ "$r16", "$r17", "$r18", "$r19", "$r20", "$r21", "$r22", "$r23",
++ "$r24", "$r25", "$r26", "$r27", "$r28", "$r29", "$r30", "$r31",
++};
++
++const char *const loongarch_r_lp64_name[32] =
++{
++ "$zero", "$ra", "$tp", "$sp", "$a0", "$a1", "$a2", "$a3",
++ "$a4", "$a5", "$a6", "$a7", "$t0", "$t1", "$t2", "$t3",
++ "$t4", "$t5", "$t6", "$t7", "$t8", "$x", "$fp", "$s0",
++ "$s1", "$s2", "$s3", "$s4", "$s5", "$s6", "$s7", "$s8",
++};
++
++const char *const loongarch_r_lp64_name1[32] =
++{
++ "", "", "", "", "$v0", "$v1", "", "", "", "", "", "", "", "", "", "",
++ "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "",
++};
++
++const char *const loongarch_f_normal_name[32] =
++{
++ "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7",
++ "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15",
++ "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23",
++ "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31",
++};
++
++const char *const loongarch_f_lp64_name[32] =
++{
++ "$fa0", "$fa1", "$fa2", "$fa3", "$fa4", "$fa5", "$fa6", "$fa7",
++ "$ft0", "$ft1", "$ft2", "$ft3", "$ft4", "$ft5", "$ft6", "$ft7",
++ "$ft8", "$ft9", "$ft10", "$ft11", "$ft12", "$ft13", "$ft14", "$ft15",
++ "$fs0", "$fs1", "$fs2", "$fs3", "$fs4", "$fs5", "$fs6", "$fs7",
++};
++
++const char *const loongarch_f_lp64_name1[32] =
++{
++ "$fv0", "$fv1", "", "", "", "", "", "", "", "", "", "", "", "", "", "",
++ "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "",
++};
++
++const char *const loongarch_c_normal_name[8] =
++{
++ "$fcc0", "$fcc1", "$fcc2", "$fcc3", "$fcc4", "$fcc5", "$fcc6", "$fcc7",
++};
++
++const char *const loongarch_cr_normal_name[4] =
++{
++ "$scr0",
++ "$scr1",
++ "$scr2",
++ "$scr3",
++};
++
++const char *const loongarch_v_normal_name[32] =
++{
++ "$vr0", "$vr1", "$vr2", "$vr3", "$vr4", "$vr5", "$vr6", "$vr7",
++ "$vr8", "$vr9", "$vr10", "$vr11", "$vr12", "$vr13", "$vr14", "$vr15",
++ "$vr16", "$vr17", "$vr18", "$vr19", "$vr20", "$vr21", "$vr22", "$vr23",
++ "$vr24", "$vr25", "$vr26", "$vr27", "$vr28", "$vr29", "$vr30", "$vr31",
++};
++
++const char *const loongarch_x_normal_name[32] =
++{
++ "$xr0", "$xr1", "$xr2", "$xr3", "$xr4", "$xr5", "$xr6", "$xr7",
++ "$xr8", "$xr9", "$xr10", "$xr11", "$xr12", "$xr13", "$xr14", "$xr15",
++ "$xr16", "$xr17", "$xr18", "$xr19", "$xr20", "$xr21", "$xr22", "$xr23",
++ "$xr24", "$xr25", "$xr26", "$xr27", "$xr28", "$xr29", "$xr30", "$xr31",
++};
++
++/* Can not use xx_pa for abs. */
++
++/* For LoongArch32 abs. */
++#define INSN_LA_ABS32 \
++ "lu12i.w %1,%%abs_hi20(%2);" \
++ "ori %1,%1,%%abs_lo12(%2);", \
++ &LARCH_opts.ase_ilp32, \
++ &LARCH_opts.ase_lp64
++#define INSN_LA_ABS64 \
++ "lu12i.w %1,%%abs_hi20(%2);" \
++ "ori %1,%1,%%abs_lo12(%2);" \
++ "lu32i.d %1,%%abs64_lo20(%2);" \
++ "lu52i.d %1,%1,%%abs64_hi12(%2);", \
++ &LARCH_opts.ase_lp64, 0
++
++#define INSN_LA_PCREL32 \
++ "pcalau12i %1,%%pc_hi20(%2);" \
++ "addi.w %1,%1,%%pc_lo12(%2);", \
++ &LARCH_opts.ase_ilp32, \
++ &LARCH_opts.ase_lp64
++#define INSN_LA_PCREL64 \
++ "pcalau12i %1,%%pc_hi20(%2);" \
++ "addi.d %1,%1,%%pc_lo12(%2);", \
++ &LARCH_opts.ase_lp64, 0
++#define INSN_LA_PCREL64_LARGE \
++ "pcalau12i %1,%%pc_hi20(%3);" \
++ "addi.d %2,$r0,%%pc_lo12(%3);" \
++ "lu32i.d %2,%%pc64_lo20(%3);" \
++ "lu52i.d %2,%2,%%pc64_hi12(%3);" \
++ "add.d %1,%1,%2;", \
++ &LARCH_opts.ase_lp64, 0
++
++#define INSN_LA_GOT32 \
++ "pcalau12i %1,%%got_pc_hi20(%2);" \
++ "ld.w %1,%1,%%got_pc_lo12(%2);", \
++ &LARCH_opts.ase_ilp32, \
++ &LARCH_opts.ase_lp64
++/* got32 abs. */
++#define INSN_LA_GOT32_ABS \
++ "lu12i.w %1,%%got_hi20(%2);" \
++ "ori %1,%1,%%got_lo12(%2);" \
++ "ld.w %1,%1,0;", \
++ &LARCH_opts.ase_gabs, \
++ &LARCH_opts.ase_lp64
++#define INSN_LA_GOT64 \
++ "pcalau12i %1,%%got_pc_hi20(%2);" \
++ "ld.d %1,%1,%%got_pc_lo12(%2);", \
++ &LARCH_opts.ase_lp64, 0
++/* got64 abs. */
++#define INSN_LA_GOT64_LARGE_ABS \
++ "lu12i.w %1,%%got_hi20(%2);" \
++ "ori %1,%1,%%got_lo12(%2);" \
++ "lu32i.d %1,%%got64_lo20(%2);" \
++ "lu52i.d %1,%1,%%got64_hi12(%2);" \
++ "ld.d %1,%1,0", \
++ &LARCH_opts.ase_lp64, \
++ &LARCH_opts.ase_gpcr
++/* got64 pic. */
++#define INSN_LA_GOT64_LARGE_PCREL \
++ "pcalau12i %1,%%got_pc_hi20(%3);" \
++ "addi.d %2,$r0,%%got_pc_lo12(%3);" \
++ "lu32i.d %2,%%got64_pc_lo20(%3);" \
++ "lu52i.d %2,%2,%%got64_pc_hi12(%3);"\
++ "ldx.d %1,%1,%2;", \
++ &LARCH_opts.ase_lp64, \
++ &LARCH_opts.ase_gabs
++
++/* For LoongArch32/64 cmode=normal. */
++#define INSN_LA_TLS_LE \
++ "lu12i.w %1,%%le_hi20(%2);" \
++ "ori %1,%1,%%le_lo12(%2);", \
++ &LARCH_opts.ase_ilp32, 0
++
++/* For LoongArch64 cmode=large. */
++#define INSN_LA_TLS_LE64_LARGE \
++ "lu12i.w %1,%%le_hi20(%2);" \
++ "ori %1,%1,%%le_lo12(%2);" \
++ "lu32i.d %1,%%le64_lo20(%2);" \
++ "lu52i.d %1,%1,%%le64_hi12(%2);", \
++ &LARCH_opts.ase_lp64, 0
++
++#define INSN_LA_TLS_IE32 \
++ "pcalau12i %1,%%ie_pc_hi20(%2);" \
++ "ld.w %1,%1,%%ie_pc_lo12(%2);", \
++ &LARCH_opts.ase_ilp32, \
++ &LARCH_opts.ase_lp64
++/* For ie32 abs. */
++#define INSN_LA_TLS_IE32_ABS \
++ "lu12i.w %1,%%ie_hi20(%2);" \
++ "ori %1,%1,%%ie_lo12(%2);" \
++ "ld.w %1,%1,0", \
++ &LARCH_opts.ase_gabs, \
++ &LARCH_opts.ase_lp64
++#define INSN_LA_TLS_IE64 \
++ "pcalau12i %1,%%ie_pc_hi20(%2);" \
++ "ld.d %1,%1,%%ie_pc_lo12(%2);", \
++ &LARCH_opts.ase_lp64, 0
++/* For ie64 pic. */
++#define INSN_LA_TLS_IE64_LARGE_PCREL \
++ "pcalau12i %1,%%ie_pc_hi20(%3);" \
++ "addi.d %2,$r0,%%ie_pc_lo12(%3);" \
++ "lu32i.d %2,%%ie64_pc_lo20(%3);" \
++ "lu52i.d %2,%2,%%ie64_pc_hi12(%3);"\
++ "ldx.d %1,%1,%2;", \
++ &LARCH_opts.ase_lp64, \
++ &LARCH_opts.ase_gabs
++/* For ie64 abs. */
++#define INSN_LA_TLS_IE64_LARGE_ABS \
++ "lu12i.w %1,%%ie_hi20(%2);" \
++ "ori %1,%1,%%ie_lo12(%2);" \
++ "lu32i.d %1,%%ie64_lo20(%2);" \
++ "lu52i.d %1,%1,%%ie64_hi12(%2);" \
++ "ld.d %1,%1,0", \
++ &LARCH_opts.ase_lp64, \
++ &LARCH_opts.ase_gpcr
++
++/* For LoongArch32/64 cmode=normal. */
++#define INSN_LA_TLS_LD32 \
++ "pcalau12i %1,%%ld_pc_hi20(%2);" \
++ "addi.w %1,%1,%%got_pc_lo12(%2);", \
++ &LARCH_opts.ase_ilp32, \
++ &LARCH_opts.ase_lp64
++#define INSN_LA_TLS_LD32_ABS \
++ "lu12i.w %1,%%ld_hi20(%2);" \
++ "ori %1,%1,%%got_lo12(%2);", \
++ &LARCH_opts.ase_gabs, \
++ &LARCH_opts.ase_lp64
++#define INSN_LA_TLS_LD64 \
++ "pcalau12i %1,%%ld_pc_hi20(%2);" \
++ "addi.d %1,%1,%%got_pc_lo12(%2);", \
++ &LARCH_opts.ase_lp64, 0
++#define INSN_LA_TLS_LD64_LARGE_PCREL \
++ "pcalau12i %1,%%ld_pc_hi20(%3);" \
++ "addi.d %2,$r0,%%got_pc_lo12(%3);" \
++ "lu32i.d %2,%%got64_pc_lo20(%3);" \
++ "lu52i.d %2,%2,%%got64_pc_hi12(%3);"\
++ "add.d %1,%1,%2;", \
++ &LARCH_opts.ase_lp64, \
++ &LARCH_opts.ase_gabs
++#define INSN_LA_TLS_LD64_LARGE_ABS \
++ "lu12i.w %1,%%ld_hi20(%2);" \
++ "ori %1,%1,%%got_lo12(%2);" \
++ "lu32i.d %1,%%got64_lo20(%2);" \
++ "lu52i.d %1,%1,%%got64_hi12(%2);", \
++ &LARCH_opts.ase_lp64, \
++ &LARCH_opts.ase_gpcr
++
++#define INSN_LA_TLS_GD32 \
++ "pcalau12i %1,%%gd_pc_hi20(%2);" \
++ "addi.w %1,%1,%%got_pc_lo12(%2);", \
++ &LARCH_opts.ase_ilp32, \
++ &LARCH_opts.ase_lp64
++#define INSN_LA_TLS_GD32_ABS \
++ "lu12i.w %1,%%gd_hi20(%2);" \
++ "ori %1,%1,%%got_lo12(%2);", \
++ &LARCH_opts.ase_gabs, \
++ &LARCH_opts.ase_lp64
++#define INSN_LA_TLS_GD64 \
++ "pcalau12i %1,%%gd_pc_hi20(%2);" \
++ "addi.d %1,%1,%%got_pc_lo12(%2);", \
++ &LARCH_opts.ase_lp64, 0
++#define INSN_LA_TLS_GD64_LARGE_PCREL \
++ "pcalau12i %1,%%gd_pc_hi20(%3);" \
++ "addi.d %2,$r0,%%got_pc_lo12(%3);" \
++ "lu32i.d %2,%%got64_pc_lo20(%3);" \
++ "lu52i.d %2,%2,%%got64_pc_hi12(%3);"\
++ "add.d %1,%1,%2;", \
++ &LARCH_opts.ase_lp64, \
++ &LARCH_opts.ase_gabs
++#define INSN_LA_TLS_GD64_LARGE_ABS \
++ "lu12i.w %1,%%gd_hi20(%2);" \
++ "ori %1,%1,%%got_lo12(%2);" \
++ "lu32i.d %1,%%got64_lo20(%2);" \
++ "lu52i.d %1,%1,%%got64_hi12(%2);", \
++ &LARCH_opts.ase_lp64, \
++ &LARCH_opts.ase_gpcr
++
++
++static struct loongarch_opcode loongarch_macro_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0, 0, "li.w", "r,sc", "%f", 0, 0, 0 },
++ { 0, 0, "li.d", "r,sc", "%f", 0, 0, 0 },
++
++ { 0, 0, "la", "r,la", "la.global %1,%2", 0, 0, 0 },
++ { 0, 0, "la.global", "r,la", "la.pcrel %1,%2", &LARCH_opts.ase_gpcr, 0, 0 },
++ { 0, 0, "la.global", "r,r,la", "la.pcrel %1,%2,%3", &LARCH_opts.ase_gpcr, 0, 0 },
++ { 0, 0, "la.global", "r,la", "la.abs %1,%2", &LARCH_opts.ase_gabs, 0, 0 },
++ { 0, 0, "la.global", "r,r,la", "la.abs %1,%3", &LARCH_opts.ase_gabs, 0, 0 },
++ { 0, 0, "la.global", "r,la", "la.got %1,%2", 0, 0, 0 },
++ { 0, 0, "la.global", "r,r,la", "la.got %1,%2,%3", &LARCH_opts.ase_lp64, 0, 0 },
++
++ { 0, 0, "la.local", "r,la", "la.abs %1,%2", &LARCH_opts.ase_labs, 0, 0 },
++ { 0, 0, "la.local", "r,r,la", "la.abs %1,%3", &LARCH_opts.ase_labs, 0, 0 },
++ { 0, 0, "la.local", "r,la", "la.pcrel %1,%2", 0, 0, 0 },
++ { 0, 0, "la.local", "r,r,la", "la.pcrel %1,%2,%3", &LARCH_opts.ase_lp64, 0, 0 },
++
++ { 0, 0, "la.abs", "r,la", INSN_LA_ABS32, 0 },
++ { 0, 0, "la.abs", "r,la", INSN_LA_ABS64, 0 },
++ { 0, 0, "la.pcrel", "r,la", INSN_LA_PCREL32, 0 },
++ { 0, 0, "la.pcrel", "r,la", INSN_LA_PCREL64, 0 },
++ { 0, 0, "la.pcrel", "r,r,la", INSN_LA_PCREL64_LARGE, 0 },
++ { 0, 0, "la.got", "r,la", INSN_LA_GOT32, 0 },
++ { 0, 0, "la.got", "r,la", INSN_LA_GOT32_ABS, 0 },
++ { 0, 0, "la.got", "r,la", INSN_LA_GOT64, 0 },
++ { 0, 0, "la.got", "r,la", INSN_LA_GOT64_LARGE_ABS, 0 },
++ { 0, 0, "la.got", "r,r,la", INSN_LA_GOT64_LARGE_PCREL, 0 },
++ { 0, 0, "la.tls.le", "r,l", INSN_LA_TLS_LE, 0 },
++ { 0, 0, "la.tls.le", "r,l", INSN_LA_TLS_LE64_LARGE, 0 },
++ { 0, 0, "la.tls.ie", "r,l", INSN_LA_TLS_IE32, 0 },
++ { 0, 0, "la.tls.ie", "r,l", INSN_LA_TLS_IE32_ABS, 0 },
++ { 0, 0, "la.tls.ie", "r,l", INSN_LA_TLS_IE64, 0 },
++ { 0, 0, "la.tls.ie", "r,l", INSN_LA_TLS_IE64_LARGE_ABS, 0 },
++ { 0, 0, "la.tls.ie", "r,r,l", INSN_LA_TLS_IE64_LARGE_PCREL, 0 },
++ { 0, 0, "la.tls.ld", "r,l", INSN_LA_TLS_LD32, 0 },
++ { 0, 0, "la.tls.ld", "r,l", INSN_LA_TLS_LD32_ABS, 0 },
++ { 0, 0, "la.tls.ld", "r,l", INSN_LA_TLS_LD64, 0 },
++ { 0, 0, "la.tls.ld", "r,l", INSN_LA_TLS_LD64_LARGE_ABS, 0 },
++ { 0, 0, "la.tls.ld", "r,r,l", INSN_LA_TLS_LD64_LARGE_PCREL, 0 },
++ { 0, 0, "la.tls.gd", "r,l", INSN_LA_TLS_GD32, 0 },
++ { 0, 0, "la.tls.gd", "r,l", INSN_LA_TLS_GD32_ABS, 0 },
++ { 0, 0, "la.tls.gd", "r,l", INSN_LA_TLS_GD64, 0 },
++ { 0, 0, "la.tls.gd", "r,l", INSN_LA_TLS_GD64_LARGE_ABS, 0 },
++ { 0, 0, "la.tls.gd", "r,r,l", INSN_LA_TLS_GD64_LARGE_PCREL, 0 },
++
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_fix_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x00001000, 0xfffffc00, "clo.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00001400, 0xfffffc00, "clz.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00001800, 0xfffffc00, "cto.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00001c00, 0xfffffc00, "ctz.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00002000, 0xfffffc00, "clo.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00002400, 0xfffffc00, "clz.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00002800, 0xfffffc00, "cto.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00002c00, 0xfffffc00, "ctz.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00003000, 0xfffffc00, "revb.2h", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00003400, 0xfffffc00, "revb.4h", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00003800, 0xfffffc00, "revb.2w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00003c00, 0xfffffc00, "revb.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00004000, 0xfffffc00, "revh.2w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00004400, 0xfffffc00, "revh.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00004800, 0xfffffc00, "bitrev.4b", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00004c00, 0xfffffc00, "bitrev.8b", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00005000, 0xfffffc00, "bitrev.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00005400, 0xfffffc00, "bitrev.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00005800, 0xfffffc00, "ext.w.h", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00005c00, 0xfffffc00, "ext.w.b", "r0:5,r5:5", 0, 0, 0, 0 },
++ /* or %1,%2,$r0 */
++ { 0x00150000, 0xfffffc00, "move", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00006000, 0xfffffc00, "rdtimel.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00006400, 0xfffffc00, "rdtimeh.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00006800, 0xfffffc00, "rdtime.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00006c00, 0xfffffc00, "cpucfg", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x00010000, 0xffff801f, "asrtle.d", "r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00018000, 0xffff801f, "asrtgt.d", "r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00040000, 0xfffe0000, "alsl.w", "r0:5,r5:5,r10:5,u15:2+1", 0, 0, 0, 0 },
++ { 0x00060000, 0xfffe0000, "alsl.wu", "r0:5,r5:5,r10:5,u15:2+1", 0, 0, 0, 0 },
++ { 0x00080000, 0xfffe0000, "bytepick.w", "r0:5,r5:5,r10:5,u15:2", 0, 0, 0, 0 },
++ { 0x000c0000, 0xfffc0000, "bytepick.d", "r0:5,r5:5,r10:5,u15:3", 0, 0, 0, 0 },
++ { 0x00100000, 0xffff8000, "add.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00108000, 0xffff8000, "add.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00110000, 0xffff8000, "sub.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00118000, 0xffff8000, "sub.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00120000, 0xffff8000, "slt", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00128000, 0xffff8000, "sltu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00130000, 0xffff8000, "maskeqz", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00138000, 0xffff8000, "masknez", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00140000, 0xffff8000, "nor", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00148000, 0xffff8000, "and", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00150000, 0xffff8000, "or", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00158000, 0xffff8000, "xor", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00160000, 0xffff8000, "orn", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00168000, 0xffff8000, "andn", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00170000, 0xffff8000, "sll.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00178000, 0xffff8000, "srl.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00180000, 0xffff8000, "sra.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00188000, 0xffff8000, "sll.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00190000, 0xffff8000, "srl.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00198000, 0xffff8000, "sra.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001b0000, 0xffff8000, "rotr.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001b8000, 0xffff8000, "rotr.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001c0000, 0xffff8000, "mul.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001c8000, 0xffff8000, "mulh.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001d0000, 0xffff8000, "mulh.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001d8000, 0xffff8000, "mul.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001e0000, 0xffff8000, "mulh.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001e8000, 0xffff8000, "mulh.du", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001f0000, 0xffff8000, "mulw.d.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x001f8000, 0xffff8000, "mulw.d.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00200000, 0xffff8000, "div.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00208000, 0xffff8000, "mod.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00210000, 0xffff8000, "div.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00218000, 0xffff8000, "mod.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00220000, 0xffff8000, "div.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00228000, 0xffff8000, "mod.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00230000, 0xffff8000, "div.du", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00238000, 0xffff8000, "mod.du", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00240000, 0xffff8000, "crc.w.b.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00248000, 0xffff8000, "crc.w.h.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00250000, 0xffff8000, "crc.w.w.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00258000, 0xffff8000, "crc.w.d.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00260000, 0xffff8000, "crcc.w.b.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00268000, 0xffff8000, "crcc.w.h.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00270000, 0xffff8000, "crcc.w.w.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x00278000, 0xffff8000, "crcc.w.d.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x002a0000, 0xffff8000, "break", "u0:15", 0, 0, 0, 0 },
++ { 0x002a8000, 0xffff8000, "dbcl", "u0:15", 0, 0, 0, 0 },
++ { 0x002b0000, 0xffff8000, "syscall", "u0:15", 0, 0, 0, 0 },
++ { 0x002c0000, 0xfffe0000, "alsl.d", "r0:5,r5:5,r10:5,u15:2+1", 0, 0, 0, 0 },
++ { 0x00408000, 0xffff8000, "slli.w", "r0:5,r5:5,u10:5", 0, 0, 0, 0 },
++ { 0x00410000, 0xffff0000, "slli.d", "r0:5,r5:5,u10:6", 0, 0, 0, 0 },
++ { 0x00448000, 0xffff8000, "srli.w", "r0:5,r5:5,u10:5", 0, 0, 0, 0 },
++ { 0x00450000, 0xffff0000, "srli.d", "r0:5,r5:5,u10:6", 0, 0, 0, 0 },
++ { 0x00488000, 0xffff8000, "srai.w", "r0:5,r5:5,u10:5", 0, 0, 0, 0 },
++ { 0x00490000, 0xffff0000, "srai.d", "r0:5,r5:5,u10:6", 0, 0, 0, 0 },
++ { 0x004c8000, 0xffff8000, "rotri.w", "r0:5,r5:5,u10:5", 0, 0, 0, 0 },
++ { 0x004d0000, 0xffff0000, "rotri.d", "r0:5,r5:5,u10:6", 0, 0, 0, 0 },
++ { 0x00600000, 0xffe08000, "bstrins.w", "r0:5,r5:5,u16:5,u10:5", 0, 0, 0, 0 },
++ { 0x00608000, 0xffe08000, "bstrpick.w", "r0:5,r5:5,u16:5,u10:5", 0, 0, 0, 0 },
++ { 0x00800000, 0xffc00000, "bstrins.d", "r0:5,r5:5,u16:6,u10:6", 0, 0, 0, 0 },
++ { 0x00c00000, 0xffc00000, "bstrpick.d", "r0:5,r5:5,u16:6,u10:6", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_single_float_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x01008000, 0xffff8000, "fadd.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01028000, 0xffff8000, "fsub.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01048000, 0xffff8000, "fmul.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01068000, 0xffff8000, "fdiv.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01088000, 0xffff8000, "fmax.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x010a8000, 0xffff8000, "fmin.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x010c8000, 0xffff8000, "fmaxa.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x010e8000, 0xffff8000, "fmina.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01108000, 0xffff8000, "fscaleb.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01128000, 0xffff8000, "fcopysign.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01140400, 0xfffffc00, "fabs.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01141400, 0xfffffc00, "fneg.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01142400, 0xfffffc00, "flogb.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01143400, 0xfffffc00, "fclass.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01144400, 0xfffffc00, "fsqrt.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01145400, 0xfffffc00, "frecip.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01146400, 0xfffffc00, "frsqrt.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01149400, 0xfffffc00, "fmov.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x0114a400, 0xfffffc00, "movgr2fr.w", "f0:5,r5:5", 0, 0, 0, 0 },
++ { 0x0114ac00, 0xfffffc00, "movgr2frh.w", "f0:5,r5:5", 0, 0, 0, 0 },
++ { 0x0114b400, 0xfffffc00, "movfr2gr.s", "r0:5,f5:5", 0, 0, 0, 0 },
++ { 0x0114bc00, 0xfffffc00, "movfrh2gr.s", "r0:5,f5:5", 0, 0, 0, 0 },
++ { 0x0114c000, 0xfffffc00, "movgr2fcsr", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x0114c800, 0xfffffc00, "movfcsr2gr", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x0114d000, 0xfffffc18, "movfr2cf", "c0:3,f5:5", 0, 0, 0, 0 },
++ { 0x0114d400, 0xffffff00, "movcf2fr", "f0:5,c5:3", 0, 0, 0, 0 },
++ { 0x0114d800, 0xfffffc18, "movgr2cf", "c0:3,r5:5", 0, 0, 0, 0 },
++ { 0x0114dc00, 0xffffff00, "movcf2gr", "r0:5,c5:3", 0, 0, 0, 0 },
++ { 0x011a0400, 0xfffffc00, "ftintrm.w.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a2400, 0xfffffc00, "ftintrm.l.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a4400, 0xfffffc00, "ftintrp.w.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a6400, 0xfffffc00, "ftintrp.l.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a8400, 0xfffffc00, "ftintrz.w.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011aa400, 0xfffffc00, "ftintrz.l.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011ac400, 0xfffffc00, "ftintrne.w.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011ae400, 0xfffffc00, "ftintrne.l.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011b0400, 0xfffffc00, "ftint.w.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011b2400, 0xfffffc00, "ftint.l.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011d1000, 0xfffffc00, "ffint.s.w", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011d1800, 0xfffffc00, "ffint.s.l", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011e4400, 0xfffffc00, "frint.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++static struct loongarch_opcode loongarch_double_float_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x01010000, 0xffff8000, "fadd.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01030000, 0xffff8000, "fsub.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01050000, 0xffff8000, "fmul.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01070000, 0xffff8000, "fdiv.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01090000, 0xffff8000, "fmax.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x010b0000, 0xffff8000, "fmin.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x010d0000, 0xffff8000, "fmaxa.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x010f0000, 0xffff8000, "fmina.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01110000, 0xffff8000, "fscaleb.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01130000, 0xffff8000, "fcopysign.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x01140800, 0xfffffc00, "fabs.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01141800, 0xfffffc00, "fneg.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01142800, 0xfffffc00, "flogb.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01143800, 0xfffffc00, "fclass.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01144800, 0xfffffc00, "fsqrt.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01145800, 0xfffffc00, "frecip.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01146800, 0xfffffc00, "frsqrt.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01149800, 0xfffffc00, "fmov.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x0114a800, 0xfffffc00, "movgr2fr.d", "f0:5,r5:5", 0, 0, 0, 0 },
++ { 0x0114b800, 0xfffffc00, "movfr2gr.d", "r0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01191800, 0xfffffc00, "fcvt.s.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x01192400, 0xfffffc00, "fcvt.d.s", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a0800, 0xfffffc00, "ftintrm.w.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a2800, 0xfffffc00, "ftintrm.l.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a4800, 0xfffffc00, "ftintrp.w.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a6800, 0xfffffc00, "ftintrp.l.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011a8800, 0xfffffc00, "ftintrz.w.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011aa800, 0xfffffc00, "ftintrz.l.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011ac800, 0xfffffc00, "ftintrne.w.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011ae800, 0xfffffc00, "ftintrne.l.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011b0800, 0xfffffc00, "ftint.w.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011b2800, 0xfffffc00, "ftint.l.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011d2000, 0xfffffc00, "ffint.d.w", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011d2800, 0xfffffc00, "ffint.d.l", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0x011e4800, 0xfffffc00, "frint.d", "f0:5,f5:5", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_imm_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x02000000, 0xffc00000, "slti", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x02400000, 0xffc00000, "sltui", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x02800000, 0xffc00000, "addi.w", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x02c00000, 0xffc00000, "addi.d", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x03000000, 0xffc00000, "lu52i.d", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x0, 0x0, "nop", "", "andi $r0,$r0,0", 0, 0, 0 },
++ { 0x03400000, 0xffc00000, "andi", "r0:5,r5:5,u10:12", 0, 0, 0, 0 },
++ { 0x03800000, 0xffc00000, "ori", "r0:5,r5:5,u10:12", 0, 0, 0, 0 },
++ { 0x03c00000, 0xffc00000, "xori", "r0:5,r5:5,u10:12", 0, 0, 0, 0 },
++ { 0x10000000, 0xfc000000, "addu16i.d", "r0:5,r5:5,s10:16", 0, 0, 0, 0 },
++ { 0x14000000, 0xfe000000, "lu12i.w", "r0:5,s5:20", 0, 0, 0, 0 },
++ { 0x16000000, 0xfe000000, "lu32i.d", "r0:5,s5:20", 0, 0, 0, 0 },
++ { 0x18000000, 0xfe000000, "pcaddi", "r0:5,s5:20", 0, 0, 0, 0 },
++ { 0x1a000000, 0xfe000000, "pcalau12i", "r0:5,s5:20", 0, 0, 0, 0 },
++ { 0x1c000000, 0xfe000000, "pcaddu12i", "r0:5,s5:20", 0, 0, 0, 0 },
++ { 0x1e000000, 0xfe000000, "pcaddu18i", "r0:5,s5:20", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_privilege_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x04000000, 0xff0003e0, "csrrd", "r0:5,u10:14", 0, 0, 0, 0 },
++ { 0x04000020, 0xff0003e0, "csrwr", "r0:5,u10:14", 0, 0, 0, 0 },
++ { 0x04000000, 0xff000000, "csrxchg", "r0:5,r5:5,u10:14", 0, 0, 0, 0 },
++ { 0x06000000, 0xffc00000, "cacop", "u0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x06400000, 0xfffc0000, "lddir", "r0:5,r5:5,u10:8", 0, 0, 0, 0 },
++ { 0x06440000, 0xfffc001f, "ldpte", "r5:5,u10:8", 0, 0, 0, 0 },
++ { 0x06480000, 0xfffffc00, "iocsrrd.b", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x06480400, 0xfffffc00, "iocsrrd.h", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x06480800, 0xfffffc00, "iocsrrd.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x06480c00, 0xfffffc00, "iocsrrd.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x06481000, 0xfffffc00, "iocsrwr.b", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x06481400, 0xfffffc00, "iocsrwr.h", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x06481800, 0xfffffc00, "iocsrwr.w", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x06481c00, 0xfffffc00, "iocsrwr.d", "r0:5,r5:5", 0, 0, 0, 0 },
++ { 0x06482000, 0xffffffff, "tlbclr", "", 0, 0, 0, 0 },
++ { 0x06482400, 0xffffffff, "tlbflush", "", 0, 0, 0, 0 },
++ { 0x06482800, 0xffffffff, "tlbsrch", "", 0, 0, 0, 0 },
++ { 0x06482c00, 0xffffffff, "tlbrd", "", 0, 0, 0, 0 },
++ { 0x06483000, 0xffffffff, "tlbwr", "", 0, 0, 0, 0 },
++ { 0x06483400, 0xffffffff, "tlbfill", "", 0, 0, 0, 0 },
++ { 0x06483800, 0xffffffff, "ertn", "", 0, 0, 0, 0 },
++ { 0x06488000, 0xffff8000, "idle", "u0:15", 0, 0, 0, 0 },
++ { 0x06498000, 0xffff8000, "invtlb", "u0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_4opt_single_float_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x08100000, 0xfff00000, "fmadd.s", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 },
++ { 0x08500000, 0xfff00000, "fmsub.s", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 },
++ { 0x08900000, 0xfff00000, "fnmadd.s", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 },
++ { 0x08d00000, 0xfff00000, "fnmsub.s", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 },
++ { 0x0c100000, 0xffff8018, "fcmp.caf.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c108000, 0xffff8018, "fcmp.saf.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c110000, 0xffff8018, "fcmp.clt.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c118000, 0xffff8018, "fcmp.slt.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c118000, 0xffff8018, "fcmp.sgt.s", "c0:3,f10:5,f5:5", 0, 0, 0, 0 },
++ { 0x0c120000, 0xffff8018, "fcmp.ceq.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c128000, 0xffff8018, "fcmp.seq.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c130000, 0xffff8018, "fcmp.cle.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c138000, 0xffff8018, "fcmp.sle.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c138000, 0xffff8018, "fcmp.sge.s", "c0:3,f10:5,f5:5", 0, 0, 0, 0 },
++ { 0x0c140000, 0xffff8018, "fcmp.cun.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c148000, 0xffff8018, "fcmp.sun.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c150000, 0xffff8018, "fcmp.cult.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c150000, 0xffff8018, "fcmp.cugt.s", "c0:3,f10:5,f5:5", 0, 0, 0, 0 },
++ { 0x0c158000, 0xffff8018, "fcmp.sult.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c160000, 0xffff8018, "fcmp.cueq.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c168000, 0xffff8018, "fcmp.sueq.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c170000, 0xffff8018, "fcmp.cule.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c170000, 0xffff8018, "fcmp.cuge.s", "c0:3,f10:5,f5:5", 0, 0, 0, 0 },
++ { 0x0c178000, 0xffff8018, "fcmp.sule.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c180000, 0xffff8018, "fcmp.cne.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c188000, 0xffff8018, "fcmp.sne.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c1a0000, 0xffff8018, "fcmp.cor.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c1a8000, 0xffff8018, "fcmp.sor.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c1c0000, 0xffff8018, "fcmp.cune.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c1c8000, 0xffff8018, "fcmp.sune.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0d000000, 0xfffc0000, "fsel", "f0:5,f5:5,f10:5,c15:3", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_4opt_double_float_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x08200000, 0xfff00000, "fmadd.d", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 },
++ { 0x08600000, 0xfff00000, "fmsub.d", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 },
++ { 0x08a00000, 0xfff00000, "fnmadd.d", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 },
++ { 0x08e00000, 0xfff00000, "fnmsub.d", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 },
++ { 0x0c200000, 0xffff8018, "fcmp.caf.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c208000, 0xffff8018, "fcmp.saf.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c210000, 0xffff8018, "fcmp.clt.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c218000, 0xffff8018, "fcmp.slt.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c218000, 0xffff8018, "fcmp.sgt.d", "c0:3,f10:5,f5:5", 0, 0, 0, 0 },
++ { 0x0c220000, 0xffff8018, "fcmp.ceq.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c228000, 0xffff8018, "fcmp.seq.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c230000, 0xffff8018, "fcmp.cle.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c238000, 0xffff8018, "fcmp.sle.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c238000, 0xffff8018, "fcmp.sge.d", "c0:3,f10:5,f5:5", 0, 0, 0, 0 },
++ { 0x0c240000, 0xffff8018, "fcmp.cun.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c248000, 0xffff8018, "fcmp.sun.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c250000, 0xffff8018, "fcmp.cult.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c250000, 0xffff8018, "fcmp.cugt.d", "c0:3,f10:5,f5:5", 0, 0, 0, 0 },
++ { 0x0c258000, 0xffff8018, "fcmp.sult.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c260000, 0xffff8018, "fcmp.cueq.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c268000, 0xffff8018, "fcmp.sueq.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c270000, 0xffff8018, "fcmp.cule.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c270000, 0xffff8018, "fcmp.cuge.d", "c0:3,f10:5,f5:5", 0, 0, 0, 0 },
++ { 0x0c278000, 0xffff8018, "fcmp.sule.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c280000, 0xffff8018, "fcmp.cne.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c288000, 0xffff8018, "fcmp.sne.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c2a0000, 0xffff8018, "fcmp.cor.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c2a8000, 0xffff8018, "fcmp.sor.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c2c0000, 0xffff8018, "fcmp.cune.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0x0c2c8000, 0xffff8018, "fcmp.sune.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_load_store_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x20000000, 0xff000000, "ll.w", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 },
++ { 0x21000000, 0xff000000, "sc.w", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 },
++ { 0x22000000, 0xff000000, "ll.d", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 },
++ { 0x23000000, 0xff000000, "sc.d", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 },
++ { 0x24000000, 0xff000000, "ldptr.w", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 },
++ { 0x25000000, 0xff000000, "stptr.w", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 },
++ { 0x26000000, 0xff000000, "ldptr.d", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 },
++ { 0x27000000, 0xff000000, "stptr.d", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 },
++ { 0x28000000, 0xffc00000, "ld.b", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x28400000, 0xffc00000, "ld.h", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x28800000, 0xffc00000, "ld.w", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x28c00000, 0xffc00000, "ld.d", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x29000000, 0xffc00000, "st.b", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x29400000, 0xffc00000, "st.h", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x29800000, 0xffc00000, "st.w", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x29c00000, 0xffc00000, "st.d", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x2a000000, 0xffc00000, "ld.bu", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x2a400000, 0xffc00000, "ld.hu", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x2a800000, 0xffc00000, "ld.wu", "r0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x2ac00000, 0xffc00000, "preld", "u0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x38000000, 0xffff8000, "ldx.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38040000, 0xffff8000, "ldx.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38080000, 0xffff8000, "ldx.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x380c0000, 0xffff8000, "ldx.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38100000, 0xffff8000, "stx.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38140000, 0xffff8000, "stx.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38180000, 0xffff8000, "stx.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x381c0000, 0xffff8000, "stx.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38200000, 0xffff8000, "ldx.bu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38240000, 0xffff8000, "ldx.hu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38280000, 0xffff8000, "ldx.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x382c0000, 0xffff8000, "preldx", "u0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amswap.w", "r,r,r,u0:0", "amswap.w %1,%2,%3", 0, 0, 0 },
++ { 0x38600000, 0xffff8000, "amswap.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amswap.d", "r,r,r,u0:0", "amswap.d %1,%2,%3", 0, 0, 0 },
++ { 0x38608000, 0xffff8000, "amswap.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amadd.w", "r,r,r,u0:0", "amadd.w %1,%2,%3", 0, 0, 0 },
++ { 0x38610000, 0xffff8000, "amadd.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amadd.d", "r,r,r,u0:0", "amadd.d %1,%2,%3", 0, 0, 0 },
++ { 0x38618000, 0xffff8000, "amadd.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amand.w", "r,r,r,u0:0", "amand.w %1,%2,%3", 0, 0, 0 },
++ { 0x38620000, 0xffff8000, "amand.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amand.d", "r,r,r,u0:0", "amand.d %1,%2,%3", 0, 0, 0 },
++ { 0x38628000, 0xffff8000, "amand.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amor.w", "r,r,r,u0:0", "amor.w %1,%2,%3", 0, 0, 0 },
++ { 0x38630000, 0xffff8000, "amor.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amor.d", "r,r,r,u0:0", "amor.d %1,%2,%3", 0, 0, 0 },
++ { 0x38638000, 0xffff8000, "amor.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amxor.w", "r,r,r,u0:0", "amxor.w %1,%2,%3", 0, 0, 0 },
++ { 0x38640000, 0xffff8000, "amxor.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amxor.d", "r,r,r,u0:0", "amxor.d %1,%2,%3", 0, 0, 0 },
++ { 0x38648000, 0xffff8000, "amxor.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammax.w", "r,r,r,u0:0", "ammax.w %1,%2,%3", 0, 0, 0 },
++ { 0x38650000, 0xffff8000, "ammax.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammax.d", "r,r,r,u0:0", "ammax.d %1,%2,%3", 0, 0, 0 },
++ { 0x38658000, 0xffff8000, "ammax.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammin.w", "r,r,r,u0:0", "ammin.w %1,%2,%3", 0, 0, 0 },
++ { 0x38660000, 0xffff8000, "ammin.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammin.d", "r,r,r,u0:0", "ammin.d %1,%2,%3", 0, 0, 0 },
++ { 0x38668000, 0xffff8000, "ammin.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammax.wu", "r,r,r,u0:0", "ammax.wu %1,%2,%3", 0, 0, 0 },
++ { 0x38670000, 0xffff8000, "ammax.wu", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammax.du", "r,r,r,u0:0", "ammax.du %1,%2,%3", 0, 0, 0 },
++ { 0x38678000, 0xffff8000, "ammax.du", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammin.wu", "r,r,r,u0:0", "ammin.wu %1,%2,%3", 0, 0, 0 },
++ { 0x38680000, 0xffff8000, "ammin.wu", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammin.du", "r,r,r,u0:0", "ammin.du %1,%2,%3", 0, 0, 0 },
++ { 0x38688000, 0xffff8000, "ammin.du", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amswap_db.w", "r,r,r,u0:0", "amswap_db.w %1,%2,%3", 0, 0, 0 },
++ { 0x38690000, 0xffff8000, "amswap_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amswap_db.d", "r,r,r,u0:0", "amswap_db.d %1,%2,%3", 0, 0, 0 },
++ { 0x38698000, 0xffff8000, "amswap_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amadd_db.w", "r,r,r,u0:0", "amadd_db.w %1,%2,%3", 0, 0, 0 },
++ { 0x386a0000, 0xffff8000, "amadd_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amadd_db.d", "r,r,r,u0:0", "amadd_db.d %1,%2,%3", 0, 0, 0 },
++ { 0x386a8000, 0xffff8000, "amadd_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amand_db.w", "r,r,r,u0:0", "amand_db.w %1,%2,%3", 0, 0, 0 },
++ { 0x386b0000, 0xffff8000, "amand_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amand_db.d", "r,r,r,u0:0", "amand_db.d %1,%2,%3", 0, 0, 0 },
++ { 0x386b8000, 0xffff8000, "amand_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amor_db.w", "r,r,r,u0:0", "amor_db.w %1,%2,%3", 0, 0, 0 },
++ { 0x386c0000, 0xffff8000, "amor_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amor_db.d", "r,r,r,u0:0", "amor_db.d %1,%2,%3", 0, 0, 0 },
++ { 0x386c8000, 0xffff8000, "amor_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amxor_db.w", "r,r,r,u0:0", "amxor_db.w %1,%2,%3", 0, 0, 0 },
++ { 0x386d0000, 0xffff8000, "amxor_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "amxor_db.d", "r,r,r,u0:0", "amxor_db.d %1,%2,%3", 0, 0, 0 },
++ { 0x386d8000, 0xffff8000, "amxor_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammax_db.w", "r,r,r,u0:0", "ammax_db.w %1,%2,%3", 0, 0, 0 },
++ { 0x386e0000, 0xffff8000, "ammax_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammax_db.d", "r,r,r,u0:0", "ammax_db.d %1,%2,%3", 0, 0, 0 },
++ { 0x386e8000, 0xffff8000, "ammax_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammin_db.w", "r,r,r,u0:0", "ammin_db.w %1,%2,%3", 0, 0, 0 },
++ { 0x386f0000, 0xffff8000, "ammin_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammin_db.d", "r,r,r,u0:0", "ammin_db.d %1,%2,%3", 0, 0, 0 },
++ { 0x386f8000, 0xffff8000, "ammin_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammax_db.wu", "r,r,r,u0:0", "ammax_db.wu %1,%2,%3", 0, 0, 0 },
++ { 0x38700000, 0xffff8000, "ammax_db.wu", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammax_db.du", "r,r,r,u0:0", "ammax_db.du %1,%2,%3", 0, 0, 0 },
++ { 0x38708000, 0xffff8000, "ammax_db.du", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammin_db.wu", "r,r,r,u0:0", "ammin_db.wu %1,%2,%3", 0, 0, 0 },
++ { 0x38710000, 0xffff8000, "ammin_db.wu", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ammin_db.du", "r,r,r,u0:0", "ammin_db.du %1,%2,%3", 0, 0, 0 },
++ { 0x38718000, 0xffff8000, "ammin_db.du", "r0:5,r10:5,r5:5", 0, 0, 0, 0 },
++ { 0x38720000, 0xffff8000, "dbar", "u0:15", 0, 0, 0, 0 },
++ { 0x38728000, 0xffff8000, "ibar", "u0:15", 0, 0, 0, 0 },
++ { 0x38780000, 0xffff8000, "ldgt.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38788000, 0xffff8000, "ldgt.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38790000, 0xffff8000, "ldgt.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x38798000, 0xffff8000, "ldgt.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387a0000, 0xffff8000, "ldle.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387a8000, 0xffff8000, "ldle.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387b0000, 0xffff8000, "ldle.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387b8000, 0xffff8000, "ldle.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387c0000, 0xffff8000, "stgt.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387c8000, 0xffff8000, "stgt.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387d0000, 0xffff8000, "stgt.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387d8000, 0xffff8000, "stgt.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387e0000, 0xffff8000, "stle.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387e8000, 0xffff8000, "stle.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387f0000, 0xffff8000, "stle.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0x387f8000, 0xffff8000, "stle.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_single_float_load_store_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x2b000000, 0xffc00000, "fld.s", "f0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x2b400000, 0xffc00000, "fst.s", "f0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x38300000, 0xffff8000, "fldx.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38380000, 0xffff8000, "fstx.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38740000, 0xffff8000, "fldgt.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38750000, 0xffff8000, "fldle.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38760000, 0xffff8000, "fstgt.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38770000, 0xffff8000, "fstle.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_double_float_load_store_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x2b800000, 0xffc00000, "fld.d", "f0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x2bc00000, 0xffc00000, "fst.d", "f0:5,r5:5,s10:12", 0, 0, 0, 0 },
++ { 0x38340000, 0xffff8000, "fldx.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x383c0000, 0xffff8000, "fstx.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38748000, 0xffff8000, "fldgt.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38758000, 0xffff8000, "fldle.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38768000, 0xffff8000, "fstgt.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0x38778000, 0xffff8000, "fstle.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_float_jmp_opcodes[] =
++{
++ { 0x0, 0x0, "bceqz", "c,la", "bceqz %1,%%b21(%2)", 0, 0, 0 },
++ { 0x48000000, 0xfc000300, "bceqz", "c5:3,sb0:5|10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bcnez", "c,la", "bcnez %1,%%b21(%2)", 0, 0, 0 },
++ { 0x48000100, 0xfc000300, "bcnez", "c5:3,sb0:5|10:16<<2", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++static struct loongarch_opcode loongarch_jmp_opcodes[] =
++{
++ /* match, mask, name, format, macro, include, exclude, pinfo. */
++ { 0x0, 0x0, "bltz", "r,la", "bltz %1,%%b16(%2)", 0, 0, 0 },
++ { 0x60000000, 0xfc00001f, "bltz", "r5:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bgtz", "r,la", "bgtz %1,%%b16(%2)", 0, 0, 0 },
++ { 0x60000000, 0xfc0003e0, "bgtz", "r0:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bgez", "r,la", "bgez %1,%%b16(%2)", 0, 0, 0 },
++ { 0x64000000, 0xfc00001f, "bgez", "r5:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "blez", "r,la", "blez %1,%%b16(%2)", 0, 0, 0 },
++ { 0x64000000, 0xfc0003e0, "blez", "r0:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "beqz", "r,la", "beqz %1,%%b21(%2)", 0, 0, 0 },
++ { 0x40000000, 0xfc000000, "beqz", "r5:5,sb0:5|10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bnez", "r,la", "bnez %1,%%b21(%2)", 0, 0, 0 },
++ { 0x44000000, 0xfc000000, "bnez", "r5:5,sb0:5|10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "jr", "r", "jirl $r0,%1,0", 0, 0, 0 },
++ { 0x50000000, 0xfc000000, "b", "sb0:10|10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "b", "la", "b %%b26(%1)", 0, 0, 0 },
++ { 0x4c000000, 0xfc000000, "jirl", "r0:5,r5:5,s10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bl", "la", "bl %%b26(%1)", 0, 0, 0 },
++ { 0x54000000, 0xfc000000, "bl", "sb0:10|10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "beq", "r,r,la", "beq %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x58000000, 0xfc000000, "beq", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bne", "r,r,la", "bne %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x5c000000, 0xfc000000, "bne", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "blt", "r,r,la", "blt %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x60000000, 0xfc000000, "blt", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bgt", "r,r,la", "bgt %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x60000000, 0xfc000000, "bgt", "r0:5,r5:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bge", "r,r,la", "bge %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x64000000, 0xfc000000, "bge", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "ble", "r,r,la", "ble %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x64000000, 0xfc000000, "ble", "r0:5,r5:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bltu", "r,r,la", "bltu %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x68000000, 0xfc000000, "bltu", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bgtu", "r,r,la", "bgtu %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x68000000, 0xfc000000, "bgtu", "r0:5,r5:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bgeu", "r,r,la", "bgeu %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x6c000000, 0xfc000000, "bgeu", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0x0, 0x0, "bleu", "r,r,la", "bleu %1,%2,%%b16(%3)", 0, 0, 0 },
++ { 0x6c000000, 0xfc000000, "bleu", "r0:5,r5:5,sb10:16<<2", 0, 0, 0, 0 },
++ { 0 } /* Terminate the list. */
++};
++
++struct loongarch_ase loongarch_ASEs[] =
++{
++ { &LARCH_opts.ase_ilp32, loongarch_macro_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_ilp32, loongarch_imm_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_ilp32, loongarch_privilege_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_ilp32, loongarch_load_store_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_ilp32, loongarch_fix_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_ilp32, loongarch_jmp_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_sf, loongarch_float_jmp_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_sf, loongarch_single_float_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_df, loongarch_double_float_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_sf, loongarch_4opt_single_float_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_df, loongarch_4opt_double_float_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_sf, loongarch_single_float_load_store_opcodes, 0, 0, { 0 }, 0, 0 },
++ { &LARCH_opts.ase_df, loongarch_double_float_load_store_opcodes, 0, 0, { 0 }, 0, 0 },
++ { 0 },
++};
+diff --git gdb-10.2/opcodes/po/POTFILES.in gdb-10.2/opcodes/po/POTFILES.in
+index 7572204..84625ac 100644
+--- gdb-10.2/opcodes/po/POTFILES.in
++++ gdb-10.2/opcodes/po/POTFILES.in
+@@ -108,6 +108,9 @@ lm32-ibld.c
+ lm32-opc.c
+ lm32-opc.h
+ lm32-opinst.c
++loongarch-coder.c
++loongarch-dis.c
++loongarch-opc.c
+ m10200-dis.c
+ m10200-opc.c
+ m10300-dis.c
+--
+2.33.0
+
diff --git a/gdb_interface.c b/gdb_interface.c
index b14319c..e7b65ac 100644
--- a/gdb_interface.c
+++ b/gdb_interface.c
@@ -973,7 +973,6 @@ gdb_error_debug(void)
}
-
/*
* gdb callback to access debug mode.
*/
diff --git a/help.c b/help.c
index cc7ab20..d5d9dd1 100644
--- a/help.c
+++ b/help.c
@@ -336,10 +336,11 @@ char *program_usage_info[] = {
" and verification. The default count is 32768.",
"",
" --kaslr offset | auto",
- " If x86, x86_64 or s390x kernel was configured with CONFIG_RANDOMIZE_BASE,",
- " the offset value is equal to the difference between the symbol values ",
- " compiled into the vmlinux file and their relocated KASLR value. If",
- " set to auto, the KASLR offset value will be automatically calculated.",
+ " If x86, x86_64, s390x or loongarch64 kernel was configured with",
+ " CONFIG_RANDOMIZE_BASE, the offset value is equal to the difference",
+ " between the symbol values compiled into the vmlinux file and their",
+ " relocated KASLR value. If set to auto, the KASLR offset value will",
+ " be automatically calculated.",
"",
" --minimal",
" Bring up a session that is restricted to the log, dis, rd, sym,",
diff --git a/lkcd_vmdump_v1.h b/lkcd_vmdump_v1.h
index 98ee094..3ffb219 100644
--- a/lkcd_vmdump_v1.h
+++ b/lkcd_vmdump_v1.h
@@ -114,7 +114,7 @@ typedef struct _dump_header_s {
struct new_utsname dh_utsname;
/* the dump registers */
-#if !defined(IA64) && !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64)
+#if !defined(IA64) && !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64) && !defined(LOONGARCH64)
struct pt_regs dh_regs;
#endif
diff --git a/lkcd_vmdump_v2_v3.h b/lkcd_vmdump_v2_v3.h
index ef3067f..f215446 100644
--- a/lkcd_vmdump_v2_v3.h
+++ b/lkcd_vmdump_v2_v3.h
@@ -37,7 +37,8 @@
#if defined(ARM) || defined(X86) || defined(PPC) || defined(S390) || \
defined(S390X) || defined(ARM64) || defined(MIPS) || \
- defined(MIPS64) || defined(SPARC64) || defined(RISCV64)
+ defined(MIPS64) || defined(SPARC64) || defined(RISCV64) || \
+ defined(LOONGARCH64)
/*
* Kernel header file for Linux crash dumps.
@@ -84,7 +85,7 @@ typedef struct _dump_header_asm_s {
uint32_t dha_eip;
/* the dump registers */
-#if !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64)
+#if !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64) && !defined(LOONGARCH64)
struct pt_regs dha_regs;
#endif
diff --git a/loongarch64.c b/loongarch64.c
new file mode 100644
index 0000000..09df05a
--- /dev/null
+++ b/loongarch64.c
@@ -0,0 +1,1347 @@
+/* loongarch64.c - core analysis suite
+ *
+ * Copyright (C) 2021 Loongson Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifdef LOONGARCH64
+
+#include <elf.h>
+#include "defs.h"
+
+static int loongarch64_pgd_vtop(ulong *pgd, ulong vaddr,
+ physaddr_t *paddr, int verbose);
+static int loongarch64_uvtop(struct task_context *tc, ulong vaddr,
+ physaddr_t *paddr, int verbose);
+static int loongarch64_kvtop(struct task_context *tc, ulong kvaddr,
+ physaddr_t *paddr, int verbose);
+static int loongarch64_translate_pte(ulong pte, void *physaddr,
+ ulonglong pte64);
+
+static void loongarch64_cmd_mach(void);
+static void loongarch64_display_machine_stats(void);
+
+static void loongarch64_back_trace_cmd(struct bt_info *bt);
+static void loongarch64_analyze_function(ulong start, ulong offset,
+ struct loongarch64_unwind_frame *current,
+ struct loongarch64_unwind_frame *previous);
+static void loongarch64_dump_backtrace_entry(struct bt_info *bt,
+ struct syment *sym, struct loongarch64_unwind_frame *current,
+ struct loongarch64_unwind_frame *previous, int level);
+static void loongarch64_dump_exception_stack(struct bt_info *bt, char *pt_regs);
+static int loongarch64_is_exception_entry(struct syment *sym);
+static void loongarch64_display_full_frame(struct bt_info *bt,
+ struct loongarch64_unwind_frame *current,
+ struct loongarch64_unwind_frame *previous);
+static void loongarch64_stackframe_init(void);
+static void loongarch64_get_stack_frame(struct bt_info *bt, ulong *pcp, ulong *spp);
+static int loongarch64_get_dumpfile_stack_frame(struct bt_info *bt,
+ ulong *nip, ulong *ksp);
+static int loongarch64_get_frame(struct bt_info *bt, ulong *pcp, ulong *spp);
+static int loongarch64_init_active_task_regs(void);
+static int loongarch64_get_crash_notes(void);
+static int loongarch64_get_elf_notes(void);
+
+/*
+ * 3 Levels paging PAGE_SIZE=16KB
+ * PGD | PMD | PTE | OFFSET |
+ * 11 | 11 | 11 | 14 |
+ */
+/* From arch/loongarch/include/asm/pgtable{,-64}.h */
+typedef struct { ulong pgd; } pgd_t;
+typedef struct { ulong pmd; } pmd_t;
+typedef struct { ulong pte; } pte_t;
+
+#define TASK_SIZE64 (1UL << 40)
+
+#define PMD_ORDER 0
+#define PTE_ORDER 0
+
+#define PMD_SHIFT (PAGESHIFT() + (PAGESHIFT() + PTE_ORDER - 3))
+#define PMD_SIZE (1UL << PMD_SHIFT)
+#define PMD_MASK (~(PMD_SIZE - 1))
+
+#define PGDIR_SHIFT (PMD_SHIFT + (PAGESHIFT() + PMD_ORDER - 3))
+#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK (~(PGDIR_SIZE - 1))
+
+#define PTRS_PER_PTE (1UL << (PAGESHIFT() - 3))
+#define PTRS_PER_PMD PTRS_PER_PTE
+#define PTRS_PER_PGD PTRS_PER_PTE
+#define USER_PTRS_PER_PGD ((TASK_SIZE64 / PGDIR_SIZE)?(TASK_SIZE64 / PGDIR_SIZE) : 1)
+
+#define pte_index(addr) (((addr) >> PAGESHIFT()) & (PTRS_PER_PTE - 1))
+#define pmd_index(addr) (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
+#define pgd_index(addr) (((addr) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
+
+#define LOONGARCH64_CPU_RIXI (1UL << 23) /* CPU has TLB Read/eXec Inhibit */
+
+#define LOONGARCH64_EF_R0 0
+#define LOONGARCH64_EF_RA 1
+#define LOONGARCH64_EF_SP 3
+#define LOONGARCH64_EF_FP 22
+#define LOONGARCH64_EF_CSR_EPC 32
+#define LOONGARCH64_EF_CSR_BADVADDR 33
+#define LOONGARCH64_EF_CSR_CRMD 34
+#define LOONGARCH64_EF_CSR_PRMD 35
+#define LOONGARCH64_EF_CSR_EUEN 36
+#define LOONGARCH64_EF_CSR_ECFG 37
+#define LOONGARCH64_EF_CSR_ESTAT 38
+
+static struct machine_specific loongarch64_machine_specific = { 0 };
+
+/*
+ * Holds registers during the crash.
+ */
+static struct loongarch64_pt_regs *panic_task_regs;
+
+/*
+ * Check and print the flags on the page
+ */
+static void
+check_page_flags(ulong pte)
+{
+#define CHECK_PAGE_FLAG(flag) \
+ if ((_PAGE_##flag) && (pte & _PAGE_##flag)) \
+ fprintf(fp, "%s" #flag, others++ ? "|" : "")
+
+ int others = 0;
+ fprintf(fp, "(");
+
+ if (pte) {
+ CHECK_PAGE_FLAG(VALID);
+ CHECK_PAGE_FLAG(DIRTY);
+ CHECK_PAGE_FLAG(PLV);
+
+ /* Determine whether it is a huge page format */
+ if (pte & _PAGE_HGLOBAL) {
+ CHECK_PAGE_FLAG(HUGE);
+ CHECK_PAGE_FLAG(HGLOBAL);
+ } else {
+ CHECK_PAGE_FLAG(GLOBAL);
+ }
+
+ CHECK_PAGE_FLAG(PRESENT);
+ CHECK_PAGE_FLAG(WRITE);
+ CHECK_PAGE_FLAG(PROTNONE);
+ CHECK_PAGE_FLAG(SPECIAL);
+ CHECK_PAGE_FLAG(NO_READ);
+ CHECK_PAGE_FLAG(NO_EXEC);
+ CHECK_PAGE_FLAG(RPLV);
+ } else {
+ fprintf(fp, "no mapping");
+ }
+
+ fprintf(fp, ")\n");
+}
+
+/*
+ * Translate a PTE, returning TRUE if the page is present.
+ * If a physaddr pointer is passed in, don't print anything.
+ */
+static int
+loongarch64_translate_pte(ulong pte, void *physaddr, ulonglong unused)
+{
+ char ptebuf[BUFSIZE];
+ char physbuf[BUFSIZE];
+ char buf1[BUFSIZE];
+ char buf2[BUFSIZE];
+ char buf3[BUFSIZE];
+ char *arglist[MAXARGS];
+ int page_present;
+ int c, len1, len2, len3;
+ ulong paddr;
+
+ paddr = PTOB(pte >> _PFN_SHIFT);
+ page_present = !!(pte & _PAGE_PRESENT);
+
+ if (physaddr) {
+ *(ulong *)physaddr = paddr;
+ return page_present;
+ }
+
+ sprintf(ptebuf, "%lx", pte);
+ len1 = MAX(strlen(ptebuf), strlen("PTE"));
+ fprintf(fp, "%s ", mkstring(buf1, len1, CENTER | LJUST, "PTE"));
+
+ if (!page_present) {
+ swap_location(pte, buf1);
+ if ((c = parse_line(buf1, arglist)) != 3)
+ error(FATAL, "cannot determine swap location\n");
+
+ len2 = MAX(strlen(arglist[0]), strlen("SWAP"));
+ len3 = MAX(strlen(arglist[2]), strlen("OFFSET"));
+
+ fprintf(fp, "%s %s\n",
+ mkstring(buf2, len2, CENTER|LJUST, "SWAP"),
+ mkstring(buf3, len3, CENTER|LJUST, "OFFSET"));
+
+ strcpy(buf2, arglist[0]);
+ strcpy(buf3, arglist[2]);
+ fprintf(fp, "%s %s %s\n",
+ mkstring(ptebuf, len1, CENTER|RJUST, NULL),
+ mkstring(buf2, len2, CENTER|RJUST, NULL),
+ mkstring(buf3, len3, CENTER|RJUST, NULL));
+ return page_present;
+ }
+
+ sprintf(physbuf, "%lx", paddr);
+ len2 = MAX(strlen(physbuf), strlen("PHYSICAL"));
+ fprintf(fp, "%s ", mkstring(buf1, len2, CENTER | LJUST, "PHYSICAL"));
+
+ fprintf(fp, "FLAGS\n");
+ fprintf(fp, "%s %s ",
+ mkstring(ptebuf, len1, CENTER | RJUST, NULL),
+ mkstring(physbuf, len2, CENTER | RJUST, NULL));
+
+ check_page_flags(pte);
+
+ return page_present;
+}
+
+/*
+ * Identify and print the segment name to which the virtual address belongs
+ */
+static void
+get_segment_name(ulong vaddr, int verbose)
+{
+ const char * segment;
+
+ if (verbose) {
+ if (vaddr < 0x4000000000000000lu)
+ segment = "xuvrange";
+ else if (vaddr < 0x8000000000000000lu)
+ segment = "xsprange";
+ else if (vaddr < 0xc000000000000000lu)
+ segment = "xkprange";
+ else
+ segment = "xkvrange";
+
+ fprintf(fp, "SEGMENT: %s\n", segment);
+ }
+}
+
+/*
+ * Virtual to physical memory translation. This function will be called
+ * by both loongarch64_kvtop and loongarch64_uvtop.
+ */
+static int
+loongarch64_pgd_vtop(ulong *pgd, ulong vaddr, physaddr_t *paddr, int verbose)
+{
+ ulong *pgd_ptr, pgd_val;
+ ulong *pmd_ptr, pmd_val;
+ ulong *pte_ptr, pte_val;
+
+ get_segment_name(vaddr, verbose);
+
+ if (IS_XKPRANGE(vaddr)) {
+ *paddr = VTOP(vaddr);
+ return TRUE;
+ }
+
+ if (verbose)
+ fprintf(fp, "PAGE DIRECTORY: %016lx\n", (ulong)pgd);
+
+ pgd_ptr = pgd + pgd_index(vaddr);
+ FILL_PGD(PAGEBASE(pgd), KVADDR, PAGESIZE());
+ pgd_val = ULONG(machdep->pgd + PAGEOFFSET(pgd_ptr));
+ if (verbose)
+ fprintf(fp, " PGD: %16lx => %16lx\n", (ulong)pgd_ptr, pgd_val);
+ if (!pgd_val)
+ goto no_page;
+
+ pmd_ptr = (ulong *)(VTOP(pgd_val) + sizeof(pmd_t) * pmd_index(vaddr));
+ FILL_PMD(PAGEBASE(pmd_ptr), PHYSADDR, PAGESIZE());
+ pmd_val = ULONG(machdep->pmd + PAGEOFFSET(pmd_ptr));
+ if (verbose)
+ fprintf(fp, " PMD: %016lx => %016lx\n", (ulong)pmd_ptr, pmd_val);
+ if (!pmd_val)
+ goto no_page;
+
+ pte_ptr = (ulong *)(VTOP(pmd_val) + sizeof(pte_t) * pte_index(vaddr));
+ FILL_PTBL(PAGEBASE(pte_ptr), PHYSADDR, PAGESIZE());
+ pte_val = ULONG(machdep->ptbl + PAGEOFFSET(pte_ptr));
+ if (verbose)
+ fprintf(fp, " PTE: %016lx => %016lx\n", (ulong)pte_ptr, pte_val);
+ if (!pte_val)
+ goto no_page;
+
+ if (!(pte_val & _PAGE_PRESENT)) {
+ if (verbose) {
+ fprintf(fp, "\n");
+ loongarch64_translate_pte((ulong)pte_val, 0, pte_val);
+ }
+ return FALSE;
+ }
+
+ *paddr = PTOB(pte_val >> _PFN_SHIFT) + PAGEOFFSET(vaddr);
+
+ if (verbose) {
+ fprintf(fp, " PAGE: %016lx\n\n", PAGEBASE(*paddr));
+ loongarch64_translate_pte(pte_val, 0, 0);
+ }
+
+ return TRUE;
+no_page:
+ fprintf(fp, "invalid\n");
+ return FALSE;
+}
+
+/* Translates a user virtual address to its physical address. cmd_vtop() sets
+ * the verbose flag so that the pte translation gets displayed; all other
+ * callers quietly accept the translation.
+ */
+static int
+loongarch64_uvtop(struct task_context *tc, ulong vaddr, physaddr_t *paddr, int verbose)
+{
+ ulong mm, active_mm;
+ ulong *pgd;
+
+ if (!tc)
+ error(FATAL, "current context invalid\n");
+
+ *paddr = 0;
+
+ if (is_kernel_thread(tc->task) && IS_KVADDR(vaddr)) {
+ readmem(tc->task + OFFSET(task_struct_active_mm),
+ KVADDR, &active_mm, sizeof(void *),
+ "task active_mm contents", FAULT_ON_ERROR);
+
+ if (!active_mm)
+ error(FATAL,
+ "no active_mm for this kernel thread\n");
+
+ readmem(active_mm + OFFSET(mm_struct_pgd),
+ KVADDR, &pgd, sizeof(long),
+ "mm_struct pgd", FAULT_ON_ERROR);
+ } else {
+ if ((mm = task_mm(tc->task, TRUE)))
+ pgd = ULONG_PTR(tt->mm_struct + OFFSET(mm_struct_pgd));
+ else
+ readmem(tc->mm_struct + OFFSET(mm_struct_pgd),
+ KVADDR, &pgd, sizeof(long), "mm_struct pgd",
+ FAULT_ON_ERROR);
+ }
+
+ return loongarch64_pgd_vtop(pgd, vaddr, paddr, verbose);;
+}
+
+/* Translates a user virtual address to its physical address. cmd_vtop() sets
+ * the verbose flag so that the pte translation gets displayed; all other
+ * callers quietly accept the translation.
+ */
+static int
+loongarch64_kvtop(struct task_context *tc, ulong kvaddr, physaddr_t *paddr, int verbose)
+{
+ if (!IS_KVADDR(kvaddr))
+ return FALSE;
+
+ if (!verbose) {
+ if (IS_XKPRANGE(kvaddr)) {
+ *paddr = VTOP(kvaddr);
+ return TRUE;
+ }
+ }
+
+ return loongarch64_pgd_vtop((ulong *)vt->kernel_pgd[0], kvaddr, paddr,
+ verbose);
+}
+
+/*
+ * Machine dependent command.
+ */
+static void
+loongarch64_cmd_mach(void)
+{
+ int c;
+
+ while ((c = getopt(argcnt, args, "cmo")) != EOF) {
+ switch (c) {
+ case 'c':
+ case 'm':
+ case 'o':
+ option_not_supported(c);
+ break;
+ default:
+ argerrs++;
+ break;
+ }
+ }
+
+ if (argerrs)
+ cmd_usage(pc->curcmd, SYNOPSIS);
+
+ loongarch64_display_machine_stats();
+}
+
+/*
+ * "mach" command output.
+ */
+static void
+loongarch64_display_machine_stats(void)
+{
+ struct new_utsname *uts;
+ char buf[BUFSIZE];
+ ulong mhz;
+
+ uts = &kt->utsname;
+
+ fprintf(fp, " MACHINE TYPE: %s\n", uts->machine);
+ fprintf(fp, " MEMORY SIZE: %s\n", get_memory_size(buf));
+ fprintf(fp, " CPUS: %d\n", get_cpus_to_display());
+ fprintf(fp, " PROCESSOR SPEED: ");
+ if ((mhz = machdep->processor_speed()))
+ fprintf(fp, "%ld Mhz\n", mhz);
+ else
+ fprintf(fp, "(unknown)\n");
+ fprintf(fp, " HZ: %d\n", machdep->hz);
+ fprintf(fp, " PAGE SIZE: %d\n", PAGESIZE());
+ fprintf(fp, " KERNEL STACK SIZE: %ld\n", STACKSIZE());
+
+}
+
+/*
+ * Unroll a kernel stack.
+ */
+static void
+loongarch64_back_trace_cmd(struct bt_info *bt)
+{
+ struct loongarch64_unwind_frame current, previous;
+ struct loongarch64_pt_regs *regs;
+ char pt_regs[SIZE(pt_regs)];
+ int level = 0;
+ int invalid_ok = 1;
+
+ if (bt->flags & BT_REGS_NOT_FOUND)
+ return;
+
+ previous.sp = previous.pc = previous.ra = 0;
+
+ current.pc = bt->instptr;
+ current.sp = bt->stkptr;
+ current.ra = 0;
+
+ if (!INSTACK(current.sp, bt))
+ return;
+
+ if (bt->machdep) {
+ regs = (struct loongarch64_pt_regs *)bt->machdep;
+ previous.pc = current.ra = regs->regs[LOONGARCH64_EF_RA];
+ }
+
+ while (current.sp <= bt->stacktop - 32 - SIZE(pt_regs)) {
+ struct syment *symbol = NULL;
+ ulong offset;
+
+ if (CRASHDEBUG(8))
+ fprintf(fp, "level %d pc %#lx ra %#lx sp %lx\n",
+ level, current.pc, current.ra, current.sp);
+
+ if (!IS_KVADDR(current.pc) && !invalid_ok)
+ return;
+
+ symbol = value_search(current.pc, &offset);
+ if (!symbol && !invalid_ok) {
+ error(FATAL, "PC is unknown symbol (%lx)", current.pc);
+ return;
+ }
+ invalid_ok = 0;
+
+ /*
+ * If we get an address which points to the start of a
+ * function, then it could one of the following:
+ *
+ * - we are dealing with a noreturn function. The last call
+ * from a noreturn function has an ra which points to the
+ * start of the function after it. This is common in the
+ * oops callchain because of die() which is annotated as
+ * noreturn.
+ *
+ * - we have taken an exception at the start of this function.
+ * In this case we already have the RA in current.ra.
+ *
+ * - we are in one of these routines which appear with zero
+ * offset in manually-constructed stack frames:
+ *
+ * * ret_from_exception
+ * * ret_from_irq
+ * * ret_from_fork
+ * * ret_from_kernel_thread
+ */
+ if (symbol && !STRNEQ(symbol->name, "ret_from") && !offset &&
+ !current.ra && current.sp < bt->stacktop - 32 - SIZE(pt_regs)) {
+ if (CRASHDEBUG(8))
+ fprintf(fp, "zero offset at %s, try previous symbol\n",
+ symbol->name);
+
+ symbol = value_search(current.pc - 4, &offset);
+ if (!symbol) {
+ error(FATAL, "PC is unknown symbol (%lx)", current.pc);
+ return;
+ }
+ }
+
+ if (symbol && loongarch64_is_exception_entry(symbol)) {
+
+ GET_STACK_DATA(current.sp, pt_regs, sizeof(pt_regs));
+
+ previous.ra = regs->regs[LOONGARCH64_EF_RA];
+ previous.sp = regs->regs[LOONGARCH64_EF_SP];
+ current.ra = regs->csr_epc;
+
+ if (CRASHDEBUG(8))
+ fprintf(fp, "exception pc %#lx ra %#lx sp %lx\n",
+ previous.pc, previous.ra, previous.sp);
+
+ /* The PC causing the exception may have been invalid */
+ invalid_ok = 1;
+ } else if (symbol) {
+ loongarch64_analyze_function(symbol->value, offset, ¤t, &previous);
+ } else {
+ /*
+ * The current PC is invalid. Assume that the code
+ * jumped through a invalid pointer and that the SP has
+ * not been adjusted.
+ */
+ previous.sp = current.sp;
+ }
+
+ if (symbol)
+ loongarch64_dump_backtrace_entry(bt, symbol, ¤t, &previous, level++);
+
+ current.pc = current.ra;
+ current.sp = previous.sp;
+ current.ra = previous.ra;
+
+ if (CRASHDEBUG(8))
+ fprintf(fp, "next %d pc %#lx ra %#lx sp %lx\n",
+ level, current.pc, current.ra, current.sp);
+
+ previous.sp = previous.pc = previous.ra = 0;
+ }
+}
+
+static void
+loongarch64_analyze_function(ulong start, ulong offset,
+ struct loongarch64_unwind_frame *current,
+ struct loongarch64_unwind_frame *previous)
+{
+ ulong i, reg;
+ ulong rapos = 0;
+ ulong spadjust = 0;
+ uint32_t *funcbuf, *ip;
+
+ if (CRASHDEBUG(8))
+ fprintf(fp, "%s: start %#lx offset %#lx\n",
+ __func__, start, offset);
+
+ if (!offset) {
+ previous->sp = current->sp;
+ return;
+ }
+
+ ip = funcbuf = (uint32_t *)GETBUF(offset);
+ if (!readmem(start, KVADDR, funcbuf, offset,
+ "loongarch64_analyze_function", RETURN_ON_ERROR)) {
+ FREEBUF(funcbuf);
+ error(WARNING, "Cannot read function at %16lx\n", start);
+ return;
+ }
+
+ for (i = 0; i < offset; i += 4) {
+ ulong insn = *ip & 0xffffffff;
+ ulong si12 = (insn >> 10) & 0xfff; /* bit[10:21] */
+
+ if (CRASHDEBUG(8))
+ fprintf(fp, "insn @ %#lx = %#lx\n", start + i, insn);
+
+ if ((insn & 0xffc003ff) == 0x02800063 || /* addi.w sp,sp,si12 */
+ (insn & 0xffc003ff) == 0x02c00063) { /* addi.d sp,sp,si12 */
+ if (!(si12 & 0x800)) /* si12 < 0 */
+ break;
+ spadjust += 0x1000 - si12;
+ if (CRASHDEBUG(8))
+ fprintf(fp, "si12 =%lu ,spadjust = %lu\n", si12, spadjust);
+ } else if ((insn & 0xffc003ff) == 0x29800061 || /* st.w ra,sp,si12 */
+ (insn & 0xffc003ff) == 0x29c00061) { /* st.d ra,sp,si12 */
+ rapos = current->sp + si12;
+ if (CRASHDEBUG(8))
+ fprintf(fp, "rapos %lx\n", rapos);
+ break;
+ }
+
+ ip++;
+ }
+
+ FREEBUF(funcbuf);
+
+ previous->sp = current->sp + spadjust;
+
+ if (rapos && !readmem(rapos, KVADDR, ¤t->ra,
+ sizeof(current->ra), "RA from stack",
+ RETURN_ON_ERROR)) {
+ error(FATAL, "Cannot read RA from stack %lx", rapos);
+ return;
+ }
+}
+
+static void
+loongarch64_dump_backtrace_entry(struct bt_info *bt, struct syment *sym,
+ struct loongarch64_unwind_frame *current,
+ struct loongarch64_unwind_frame *previous, int level)
+{
+ const char *name = sym ? sym->name : "(invalid)";
+ struct load_module *lm;
+ char *name_plus_offset = NULL;
+ struct syment *symp;
+ ulong symbol_offset;
+ char buf[BUFSIZE];
+ char pt_regs[SIZE(pt_regs)];
+
+ if (bt->flags & BT_SYMBOL_OFFSET) {
+ symp = value_search(current->pc, &symbol_offset);
+
+ if (symp && symbol_offset)
+ name_plus_offset =
+ value_to_symstr(current->pc, buf, bt->radix);
+ }
+
+ fprintf(fp, "%s#%d [%016lx] %s at %016lx", level < 10 ? " " : "", level,
+ current->sp, name_plus_offset ? name_plus_offset : name,
+ current->pc);
+
+ if (module_symbol(current->pc, NULL, &lm, NULL, 0))
+ fprintf(fp, " [%s]", lm->mod_name);
+
+ fprintf(fp, "\n");
+
+ /*
+ * 'bt -l', get a line number associated with a current pc address.
+ */
+ if (bt->flags & BT_LINE_NUMBERS) {
+ get_line_number(current->pc, buf, FALSE);
+ if (strlen(buf))
+ fprintf(fp, " %s\n", buf);
+ }
+
+ if (sym && loongarch64_is_exception_entry(sym)) {
+ GET_STACK_DATA(current->sp, &pt_regs, SIZE(pt_regs));
+ loongarch64_dump_exception_stack(bt, pt_regs);
+ }
+
+ /* bt -f */
+ if (bt->flags & BT_FULL) {
+ fprintf(fp, " "
+ "[PC: %016lx RA: %016lx SP: %016lx SIZE: %ld]\n",
+ current->pc, current->ra, current->sp,
+ previous->sp - current->sp);
+ loongarch64_display_full_frame(bt, current, previous);
+ }
+}
+
+static void
+loongarch64_dump_exception_stack(struct bt_info *bt, char *pt_regs)
+{
+ struct loongarch64_pt_regs *regs;
+ int i;
+ char buf[BUFSIZE];
+
+ for (i = 0; i < 32; i += 4) {
+ fprintf(fp, " $%2d : %016lx %016lx %016lx %016lx\n",
+ i, regs->regs[i], regs->regs[i+1],
+ regs->regs[i+2], regs->regs[i+3]);
+ }
+
+ value_to_symstr(regs->csr_epc, buf, 16);
+ fprintf(fp, " epc : %016lx %s\n", regs->csr_epc, buf);
+
+ value_to_symstr(regs->regs[LOONGARCH64_EF_RA], buf, 16);
+ fprintf(fp, " ra : %016lx %s\n", regs->regs[LOONGARCH64_EF_RA], buf);
+
+ fprintf(fp, " CSR crmd : %016lx\n", regs->csr_crmd);
+ fprintf(fp, " CSR prmd : %016lx\n", regs->csr_prmd);
+ fprintf(fp, " CSR ecfg : %016lx\n", regs->csr_ecfg);
+ fprintf(fp, " CSR estat: %016lx\n", regs->csr_estat);
+ fprintf(fp, " CSR euen : %016lx\n", regs->csr_euen);
+
+ fprintf(fp, " BadVA : %016lx\n", regs->csr_badvaddr);
+}
+
+static int
+loongarch64_is_exception_entry(struct syment *sym)
+{
+ return STREQ(sym->name, "ret_from_exception") ||
+ STREQ(sym->name, "ret_from_irq") ||
+ STREQ(sym->name, "work_resched") ||
+ STREQ(sym->name, "handle_sys");
+}
+
+/*
+ * 'bt -f' commend output
+ * Display all stack data contained in a frame
+ */
+static void
+loongarch64_display_full_frame(struct bt_info *bt, struct loongarch64_unwind_frame *current,
+ struct loongarch64_unwind_frame *previous)
+{
+ int i, u_idx;
+ ulong *up;
+ ulong words, addr;
+ char buf[BUFSIZE];
+
+ if (previous->sp < current->sp)
+ return;
+
+ if (!(INSTACK(previous->sp, bt) && INSTACK(current->sp, bt)))
+ return;
+
+ words = (previous->sp - current->sp) / sizeof(ulong) + 1;
+ addr = current->sp;
+ u_idx = (current->sp - bt->stackbase) / sizeof(ulong);
+
+ for (i = 0; i < words; i++, u_idx++) {
+ if (!(i & 1))
+ fprintf(fp, "%s %lx: ", i ? "\n" : "", addr);
+
+ up = (ulong *)(&bt->stackbuf[u_idx*sizeof(ulong)]);
+ fprintf(fp, "%s ", format_stack_entry(bt, buf, *up, 0));
+ addr += sizeof(ulong);
+ }
+ fprintf(fp, "\n");
+}
+
+static void
+loongarch64_stackframe_init(void)
+{
+ long task_struct_thread = MEMBER_OFFSET("task_struct", "thread");
+ long thread_reg03_sp = MEMBER_OFFSET("thread_struct", "reg03");
+ long thread_reg01_ra = MEMBER_OFFSET("thread_struct", "reg01");
+
+ if ((task_struct_thread == INVALID_OFFSET) ||
+ (thread_reg03_sp == INVALID_OFFSET) ||
+ (thread_reg01_ra == INVALID_OFFSET)) {
+ error(FATAL,
+ "cannot determine thread_struct offsets\n");
+ return;
+ }
+
+ ASSIGN_OFFSET(task_struct_thread_reg03) =
+ task_struct_thread + thread_reg03_sp;
+ ASSIGN_OFFSET(task_struct_thread_reg01) =
+ task_struct_thread + thread_reg01_ra;
+
+ MEMBER_OFFSET_INIT(elf_prstatus_pr_reg, "elf_prstatus", "pr_reg");
+ STRUCT_SIZE_INIT(note_buf, "note_buf_t");
+}
+
+/*
+ * Get a stack frame combination of pc and ra from the most relevant spot.
+ */
+static void
+loongarch64_get_stack_frame(struct bt_info *bt, ulong *pcp, ulong *spp)
+{
+ ulong ksp, nip;
+ int ret = 0;
+
+ nip = ksp = 0;
+ bt->machdep = NULL;
+
+ if (DUMPFILE() && is_task_active(bt->task)) {
+ ret = loongarch64_get_dumpfile_stack_frame(bt, &nip, &ksp);
+ }
+ else {
+ ret = loongarch64_get_frame(bt, &nip, &ksp);
+ }
+
+ if (!ret)
+ error(WARNING, "cannot determine starting stack frame for task %lx\n",
+ bt->task);
+
+ if (pcp)
+ *pcp = nip;
+ if (spp)
+ *spp = ksp;
+}
+
+/*
+ * Get the starting point for the active cpu in a diskdump.
+ */
+static int
+loongarch64_get_dumpfile_stack_frame(struct bt_info *bt, ulong *nip, ulong *ksp)
+{
+ const struct machine_specific *ms = machdep->machspec;
+ struct loongarch64_pt_regs *regs;
+ ulong epc, sp;
+
+ if (!ms->crash_task_regs) {
+ bt->flags |= BT_REGS_NOT_FOUND;
+ return FALSE;
+ }
+
+ /*
+ * We got registers for panic task from crash_notes. Just return them.
+ */
+ regs = &ms->crash_task_regs[bt->tc->processor];
+ epc = regs->regs[LOONGARCH64_EF_CSR_EPC];
+ sp = regs->regs[LOONGARCH64_EF_SP];
+
+ if (!epc && !sp) {
+ bt->flags |= BT_REGS_NOT_FOUND;
+ return FALSE;
+ }
+
+ if (nip)
+ *nip = epc;
+ if (ksp)
+ *ksp = sp;
+
+ bt->machdep = regs;
+
+ return TRUE;
+}
+
+/*
+ * Do the work for loongarch64_get_stack_frame() for non-active tasks.
+ * Get SP and PC values for idle tasks.
+ */
+static int
+loongarch64_get_frame(struct bt_info *bt, ulong *pcp, ulong *spp)
+{
+ if (!bt->tc || !(tt->flags & THREAD_INFO))
+ return FALSE;
+
+ if (!readmem(bt->task + OFFSET(task_struct_thread_reg01),
+ KVADDR, pcp, sizeof(*pcp),
+ "thread_struct.regs01",
+ RETURN_ON_ERROR)) {
+ return FALSE;
+ }
+
+ if (!readmem(bt->task + OFFSET(task_struct_thread_reg03),
+ KVADDR, spp, sizeof(*spp),
+ "thread_struct.regs03",
+ RETURN_ON_ERROR)) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static int
+loongarch64_init_active_task_regs(void)
+{
+ int retval;
+
+ retval = loongarch64_get_crash_notes();
+ if (retval == TRUE)
+ return retval;
+
+ return loongarch64_get_elf_notes();
+}
+
+/*
+ * Retrieve task registers for the time of the crash.
+ */
+static int
+loongarch64_get_crash_notes(void)
+{
+ struct machine_specific *ms = machdep->machspec;
+ ulong crash_notes;
+ Elf64_Nhdr *note;
+ ulong offset;
+ char *buf, *p;
+ ulong *notes_ptrs;
+ ulong i;
+
+ /*
+ * crash_notes contains per cpu memory for storing cpu states
+ * in case of system crash.
+ */
+ if (!symbol_exists("crash_notes"))
+ return FALSE;
+
+ crash_notes = symbol_value("crash_notes");
+
+ notes_ptrs = (ulong *)GETBUF(kt->cpus*sizeof(notes_ptrs[0]));
+
+ /*
+ * Read crash_notes for the first CPU. crash_notes are in standard ELF
+ * note format.
+ */
+ if (!readmem(crash_notes, KVADDR, ¬es_ptrs[kt->cpus-1],
+ sizeof(notes_ptrs[kt->cpus-1]), "crash_notes",
+ RETURN_ON_ERROR)) {
+ error(WARNING, "cannot read crash_notes\n");
+ FREEBUF(notes_ptrs);
+ return FALSE;
+ }
+
+ if (symbol_exists("__per_cpu_offset")) {
+
+ /*
+ * Add __per_cpu_offset for each cpu to form the pointer to the notes
+ */
+ for (i = 0; i < kt->cpus; i++)
+ notes_ptrs[i] = notes_ptrs[kt->cpus-1] + kt->__per_cpu_offset[i];
+ }
+
+ buf = GETBUF(SIZE(note_buf));
+
+ if (!(panic_task_regs = calloc((size_t)kt->cpus, sizeof(*panic_task_regs))))
+ error(FATAL, "cannot calloc panic_task_regs space\n");
+
+ for (i = 0; i < kt->cpus; i++) {
+
+ if (!readmem(notes_ptrs[i], KVADDR, buf, SIZE(note_buf), "note_buf_t",
+ RETURN_ON_ERROR)) {
+ error(WARNING,
+ "cannot find NT_PRSTATUS note for cpu: %d\n", i);
+ goto fail;
+ }
+
+ /*
+ * Do some sanity checks for this note before reading registers from it.
+ */
+ note = (Elf64_Nhdr *)buf;
+ p = buf + sizeof(Elf64_Nhdr);
+
+ /*
+ * dumpfiles created with qemu won't have crash_notes, but there will
+ * be elf notes; dumpfiles created by kdump do not create notes for
+ * offline cpus.
+ */
+ if (note->n_namesz == 0 && (DISKDUMP_DUMPFILE() || KDUMP_DUMPFILE())) {
+ if (DISKDUMP_DUMPFILE())
+ note = diskdump_get_prstatus_percpu(i);
+ else if (KDUMP_DUMPFILE())
+ note = netdump_get_prstatus_percpu(i);
+ if (note) {
+ /*
+ * SIZE(note_buf) accounts for a "final note", which is a
+ * trailing empty elf note header.
+ */
+ long notesz = SIZE(note_buf) - sizeof(Elf64_Nhdr);
+
+ if (sizeof(Elf64_Nhdr) + roundup(note->n_namesz, 4) +
+ note->n_descsz == notesz)
+ BCOPY((char *)note, buf, notesz);
+ } else {
+ error(WARNING,
+ "cannot find NT_PRSTATUS note for cpu: %d\n", i);
+ continue;
+ }
+ }
+
+ /*
+ * Check the sanity of NT_PRSTATUS note only for each online cpu.
+ */
+ if (note->n_type != NT_PRSTATUS) {
+ error(WARNING, "invalid NT_PRSTATUS note (n_type != NT_PRSTATUS)\n");
+ goto fail;
+ }
+ if (!STRNEQ(p, "CORE")) {
+ error(WARNING, "invalid NT_PRSTATUS note (name != \"CORE\"\n");
+ goto fail;
+ }
+
+ /*
+ * Find correct location of note data. This contains elf_prstatus
+ * structure which has registers etc. for the crashed task.
+ */
+ offset = sizeof(Elf64_Nhdr);
+ offset = roundup(offset + note->n_namesz, 4);
+ p = buf + offset; /* start of elf_prstatus */
+
+ BCOPY(p + OFFSET(elf_prstatus_pr_reg), &panic_task_regs[i],
+ sizeof(panic_task_regs[i]));
+ }
+
+ /*
+ * And finally we have the registers for the crashed task. This is
+ * used later on when dumping backtrace.
+ */
+ ms->crash_task_regs = panic_task_regs;
+
+ FREEBUF(buf);
+ FREEBUF(notes_ptrs);
+ return TRUE;
+
+fail:
+ FREEBUF(buf);
+ FREEBUF(notes_ptrs);
+ free(panic_task_regs);
+ return FALSE;
+}
+
+static int
+loongarch64_get_elf_notes(void)
+{
+ struct machine_specific *ms = machdep->machspec;
+ int i;
+
+ if (!DISKDUMP_DUMPFILE() && !KDUMP_DUMPFILE())
+ return FALSE;
+
+ panic_task_regs = calloc(kt->cpus, sizeof(*panic_task_regs));
+ if (!panic_task_regs)
+ error(FATAL, "cannot calloc panic_task_regs space\n");
+
+ for (i = 0; i < kt->cpus; i++) {
+ Elf64_Nhdr *note = NULL;
+ size_t len;
+
+ if (DISKDUMP_DUMPFILE())
+ note = diskdump_get_prstatus_percpu(i);
+ else if (KDUMP_DUMPFILE())
+ note = netdump_get_prstatus_percpu(i);
+
+ if (!note) {
+ error(WARNING,
+ "cannot find NT_PRSTATUS note for cpu: %d\n", i);
+ continue;
+ }
+
+ len = sizeof(Elf64_Nhdr);
+ len = roundup(len + note->n_namesz, 4);
+
+ BCOPY((char *)note + len + OFFSET(elf_prstatus_pr_reg),
+ &panic_task_regs[i], sizeof(panic_task_regs[i]));
+ }
+
+ ms->crash_task_regs = panic_task_regs;
+
+ return TRUE;
+}
+
+/*
+ * Accept or reject a symbol from the kernel namelist.
+ */
+static int
+loongarch64_verify_symbol(const char *name, ulong value, char type)
+{
+ if (!strncmp(name, ".L", 2) || !strncmp(name, "L0", 2))
+ return FALSE;
+
+ if (CRASHDEBUG(8) && name && strlen(name))
+ fprintf(fp, "%08lx %s\n", value, name);
+
+ if (STREQ(name, "_text") || STREQ(name, "_stext"))
+ machdep->flags |= KSYMS_START;
+
+ return (name && strlen(name) && (machdep->flags & KSYMS_START) &&
+ !STRNEQ(name, "__func__.") && !STRNEQ(name, "__crc_"));
+}
+
+/*
+ * Override smp_num_cpus if possible and necessary.
+ */
+static int
+loongarch64_get_smp_cpus(void)
+{
+ return (get_cpus_online() > 0) ? get_cpus_online() : kt->cpus;
+}
+
+static ulong
+loongarch64_get_page_size(void)
+{
+ return memory_page_size();
+}
+
+/*
+ * Determine where vmalloc'd memory starts.
+ */
+static ulong
+loongarch64_vmalloc_start(void)
+{
+ return first_vmalloc_address();
+}
+
+/*
+ * Calculate and return the speed of the processor.
+ */
+static ulong
+loongarch64_processor_speed(void)
+{
+ unsigned long cpu_hz = 0;
+
+ if (machdep->mhz)
+ return (machdep->mhz);
+
+ if (symbol_exists("cpu_clock_freq")) {
+ get_symbol_data("cpu_clock_freq", sizeof(int), &cpu_hz);
+ if (cpu_hz)
+ return(machdep->mhz = cpu_hz/1000000);
+ }
+
+ return 0;
+}
+
+/*
+ * Checks whether given task is valid task address.
+ */
+static int
+loongarch64_is_task_addr(ulong task)
+{
+ if (tt->flags & THREAD_INFO)
+ return IS_KVADDR(task);
+
+ return (IS_KVADDR(task) && ALIGNED_STACK_OFFSET(task) == 0);
+}
+
+/*
+ * 'help -m/M' command output
+ */
+void
+loongarch64_dump_machdep_table(ulong arg)
+{
+ int others = 0;
+
+ fprintf(fp, " flags: %lx (", machdep->flags);
+ if (machdep->flags & KSYMS_START)
+ fprintf(fp, "%sKSYMS_START", others++ ? "|" : "");
+ fprintf(fp, ")\n");
+
+ fprintf(fp, " kvbase: %lx\n", machdep->kvbase);
+ fprintf(fp, " identity_map_base: %lx\n", machdep->identity_map_base);
+ fprintf(fp, " pagesize: %d\n", machdep->pagesize);
+ fprintf(fp, " pageshift: %d\n", machdep->pageshift);
+ fprintf(fp, " pagemask: %llx\n", machdep->pagemask);
+ fprintf(fp, " pageoffset: %lx\n", machdep->pageoffset);
+ fprintf(fp, " pgdir_shift: %d\n", PGDIR_SHIFT);
+ fprintf(fp, " ptrs_per_pgd: %lu\n", PTRS_PER_PGD);
+ fprintf(fp, " ptrs_per_pte: %ld\n", PTRS_PER_PTE);
+ fprintf(fp, " stacksize: %ld\n", machdep->stacksize);
+ fprintf(fp, " hz: %d\n", machdep->hz);
+ fprintf(fp, " memsize: %ld (0x%lx)\n",
+ machdep->memsize, machdep->memsize);
+ fprintf(fp, " bits: %d\n", machdep->bits);
+ fprintf(fp, " back_trace: loongarch64_back_trace_cmd()\n");
+ fprintf(fp, " processor_speed: loongarch64_processor_speed()\n");
+ fprintf(fp, " uvtop: loongarch64_uvtop()\n");
+ fprintf(fp, " kvtop: loongarch64_kvtop()\n");
+ fprintf(fp, " get_stack_frame: loongarch64_get_stack_frame()\n");
+ fprintf(fp, " get_stackbase: generic_get_stackbase()\n");
+ fprintf(fp, " get_stacktop: generic_get_stacktop()\n");
+ fprintf(fp, " translate_pte: loongarch64_translate_pte()\n");
+ fprintf(fp, " memory_size: generic_memory_size()\n");
+ fprintf(fp, " vmalloc_start: loongarch64_vmalloc_start()\n");
+ fprintf(fp, " is_task_addr: loongarch64_is_task_addr()\n");
+ fprintf(fp, " verify_symbol: loongarch64_verify_symbol()\n");
+ fprintf(fp, " dis_filter: generic_dis_filter()\n");
+ fprintf(fp, " dump_irq: generic_dump_irq()\n");
+ fprintf(fp, " show_interrupts: generic_show_interrupts()\n");
+ fprintf(fp, " get_irq_affinity: generic_get_irq_affinity()\n");
+ fprintf(fp, " cmd_mach: loongarch64_cmd_mach()\n");
+ fprintf(fp, " get_smp_cpus: loongarch64_get_smp_cpus()\n");
+ fprintf(fp, " is_kvaddr: generic_is_kvaddr()\n");
+ fprintf(fp, " is_uvaddr: generic_is_uvaddr()\n");
+ fprintf(fp, " verify_paddr: generic_verify_paddr()\n");
+ fprintf(fp, " init_kernel_pgd: NULL\n");
+ fprintf(fp, " value_to_symbol: generic_machdep_value_to_symbol()\n");
+ fprintf(fp, " line_number_hooks: NULL\n");
+ fprintf(fp, " last_pgd_read: %lx\n", machdep->last_pgd_read);
+ fprintf(fp, " last_pmd_read: %lx\n", machdep->last_pmd_read);
+ fprintf(fp, " last_ptbl_read: %lx\n", machdep->last_ptbl_read);
+ fprintf(fp, " pgd: %lx\n", (ulong)machdep->pgd);
+ fprintf(fp, " pmd: %lx\n", (ulong)machdep->pmd);
+ fprintf(fp, " ptbl: %lx\n", (ulong)machdep->ptbl);
+ fprintf(fp, " section_size_bits: %ld\n", machdep->section_size_bits);
+ fprintf(fp, " max_physmem_bits: %ld\n", machdep->max_physmem_bits);
+ fprintf(fp, " sections_per_root: %ld\n", machdep->sections_per_root);
+ fprintf(fp, " machspec: %lx\n", (ulong)machdep->machspec);
+}
+
+static void
+pt_level_alloc(char **lvl, char *name)
+{
+ size_t sz = PAGESIZE();
+ void *pointer = malloc(sz);
+
+ if (!pointer)
+ error(FATAL, name);
+ *lvl = pointer;
+}
+
+void
+loongarch64_init(int when)
+{
+ switch (when) {
+ case SETUP_ENV:
+ machdep->process_elf_notes = process_elf64_notes;
+ break;
+
+ case PRE_SYMTAB:
+ machdep->verify_symbol = loongarch64_verify_symbol;
+ machdep->machspec = &loongarch64_machine_specific;
+ if (pc->flags & KERNEL_DEBUG_QUERY)
+ return;
+ machdep->last_pgd_read = 0;
+ machdep->last_pmd_read = 0;
+ machdep->last_ptbl_read = 0;
+ machdep->verify_paddr = generic_verify_paddr;
+ machdep->ptrs_per_pgd = PTRS_PER_PGD;
+ break;
+
+ case PRE_GDB:
+ machdep->pagesize = loongarch64_get_page_size();
+ machdep->pageshift = ffs(machdep->pagesize) - 1;
+ machdep->pageoffset = machdep->pagesize - 1;
+ machdep->pagemask = ~((ulonglong)machdep->pageoffset);
+ if (machdep->pagesize >= 16384)
+ machdep->stacksize = machdep->pagesize;
+ else
+ machdep->stacksize = machdep->pagesize * 2;
+
+ pt_level_alloc(&machdep->pgd, "cannot malloc pgd space.");
+ pt_level_alloc(&machdep->pmd, "cannot malloc pmd space.");
+ pt_level_alloc(&machdep->ptbl, "cannot malloc ptbl space.");
+ machdep->kvbase = 0x8000000000000000lu;
+ machdep->identity_map_base = machdep->kvbase;
+ machdep->is_kvaddr = generic_is_kvaddr;
+ machdep->is_uvaddr = generic_is_uvaddr;
+ machdep->uvtop = loongarch64_uvtop;
+ machdep->kvtop = loongarch64_kvtop;
+ machdep->cmd_mach = loongarch64_cmd_mach;
+ machdep->back_trace = loongarch64_back_trace_cmd;
+ machdep->get_stack_frame = loongarch64_get_stack_frame;
+ machdep->vmalloc_start = loongarch64_vmalloc_start;
+ machdep->processor_speed = loongarch64_processor_speed;
+ machdep->get_stackbase = generic_get_stackbase;
+ machdep->get_stacktop = generic_get_stacktop;
+ machdep->translate_pte = loongarch64_translate_pte;
+ machdep->memory_size = generic_memory_size;
+ machdep->is_task_addr = loongarch64_is_task_addr;
+ machdep->get_smp_cpus = loongarch64_get_smp_cpus;
+ machdep->dis_filter = generic_dis_filter;
+ machdep->dump_irq = generic_dump_irq;
+ machdep->show_interrupts = generic_show_interrupts;
+ machdep->get_irq_affinity = generic_get_irq_affinity;
+ machdep->value_to_symbol = generic_machdep_value_to_symbol;
+ machdep->init_kernel_pgd = NULL;
+ break;
+
+ case POST_GDB:
+ machdep->section_size_bits = _SECTION_SIZE_BITS;
+ machdep->max_physmem_bits = _MAX_PHYSMEM_BITS;
+
+ if (symbol_exists("irq_desc"))
+ ARRAY_LENGTH_INIT(machdep->nr_irqs, irq_desc,
+ "irq_desc", NULL, 0);
+ else if (kernel_symbol_exists("nr_irqs"))
+ get_symbol_data("nr_irqs", sizeof(unsigned int),
+ &machdep->nr_irqs);
+
+ loongarch64_stackframe_init();
+
+ if (!machdep->hz)
+ machdep->hz = 250;
+ break;
+
+ case POST_VM:
+ /*
+ * crash_notes contains machine specific information about the
+ * crash. In particular, it contains CPU registers at the time
+ * of the crash. We need this information to extract correct
+ * backtraces from the panic task.
+ */
+ if (!ACTIVE() && !loongarch64_init_active_task_regs())
+ error(WARNING,"cannot retrieve registers for active task%s\n\n",
+ kt->cpus > 1 ? "s" : "");
+ break;
+ }
+}
+
+void
+loongarch64_display_regs_from_elf_notes(int cpu, FILE *ofp)
+{
+ const struct machine_specific *ms = machdep->machspec;
+ struct loongarch64_pt_regs *regs;
+
+ if (!ms->crash_task_regs) {
+ error(INFO, "registers not collected for cpu %d\n", cpu);
+ return;
+ }
+
+ regs = &ms->crash_task_regs[cpu];
+ if (!regs->regs[LOONGARCH64_EF_SP] && !regs->regs[LOONGARCH64_EF_CSR_EPC]) {
+ error(INFO, "registers not collected for cpu %d\n", cpu);
+ return;
+ }
+
+ fprintf(ofp,
+ " R0: %016lx R1: %016lx R2: %016lx\n"
+ " R3: %016lx R4: %016lx R5: %016lx\n"
+ " R6: %016lx R7: %016lx R8: %016lx\n"
+ " R9: %016lx R10: %016lx R11: %016lx\n"
+ " R12: %016lx R13: %016lx R14: %016lx\n"
+ " R15: %016lx R16: %016lx R17: %016lx\n"
+ " R18: %016lx R19: %016lx R20: %016lx\n"
+ " R21: %016lx R22: %016lx R23: %016lx\n"
+ " R24: %016lx R25: %016lx R26: %016lx\n"
+ " R27: %016lx R28: %016lx R29: %016lx\n"
+ " R30: %016lx R31: %016lx\n"
+ " CSR epc : %016lx CSR badv: %016lx\n"
+ " CSR crmd: %08lx CSR prmd: %08lx\n"
+ " CSR ecfg: %08lx CSR estat: %08lx\n"
+ " CSR eneu: %08lx",
+ regs->regs[LOONGARCH64_EF_R0],
+ regs->regs[LOONGARCH64_EF_R0 + 1],
+ regs->regs[LOONGARCH64_EF_R0 + 2],
+ regs->regs[LOONGARCH64_EF_R0 + 3],
+ regs->regs[LOONGARCH64_EF_R0 + 4],
+ regs->regs[LOONGARCH64_EF_R0 + 5],
+ regs->regs[LOONGARCH64_EF_R0 + 6],
+ regs->regs[LOONGARCH64_EF_R0 + 7],
+ regs->regs[LOONGARCH64_EF_R0 + 8],
+ regs->regs[LOONGARCH64_EF_R0 + 9],
+ regs->regs[LOONGARCH64_EF_R0 + 10],
+ regs->regs[LOONGARCH64_EF_R0 + 11],
+ regs->regs[LOONGARCH64_EF_R0 + 12],
+ regs->regs[LOONGARCH64_EF_R0 + 13],
+ regs->regs[LOONGARCH64_EF_R0 + 14],
+ regs->regs[LOONGARCH64_EF_R0 + 15],
+ regs->regs[LOONGARCH64_EF_R0 + 16],
+ regs->regs[LOONGARCH64_EF_R0 + 17],
+ regs->regs[LOONGARCH64_EF_R0 + 18],
+ regs->regs[LOONGARCH64_EF_R0 + 19],
+ regs->regs[LOONGARCH64_EF_R0 + 20],
+ regs->regs[LOONGARCH64_EF_R0 + 21],
+ regs->regs[LOONGARCH64_EF_R0 + 22],
+ regs->regs[LOONGARCH64_EF_R0 + 23],
+ regs->regs[LOONGARCH64_EF_R0 + 24],
+ regs->regs[LOONGARCH64_EF_R0 + 25],
+ regs->regs[LOONGARCH64_EF_R0 + 26],
+ regs->regs[LOONGARCH64_EF_R0 + 27],
+ regs->regs[LOONGARCH64_EF_R0 + 28],
+ regs->regs[LOONGARCH64_EF_R0 + 29],
+ regs->regs[LOONGARCH64_EF_R0 + 30],
+ regs->regs[LOONGARCH64_EF_R0 + 31],
+ regs->regs[LOONGARCH64_EF_CSR_EPC],
+ regs->regs[LOONGARCH64_EF_CSR_BADVADDR],
+ regs->regs[LOONGARCH64_EF_CSR_CRMD],
+ regs->regs[LOONGARCH64_EF_CSR_PRMD],
+ regs->regs[LOONGARCH64_EF_CSR_ECFG],
+ regs->regs[LOONGARCH64_EF_CSR_ESTAT],
+ regs->regs[LOONGARCH64_EF_CSR_EUEN]);
+}
+
+#else /* !LOONGARCH64 */
+
+#include "defs.h"
+
+void
+loongarch64_display_regs_from_elf_notes(int cpu, FILE *ofp)
+{
+ return;
+}
+
+#endif /* !LOONGARCH64 */
diff --git a/main.c b/main.c
index b278c22..a70fd5e 100644
--- a/main.c
+++ b/main.c
@@ -228,7 +228,8 @@ main(int argc, char **argv)
} else if (STREQ(long_options[option_index].name, "kaslr")) {
if (!machine_type("X86_64") &&
!machine_type("ARM64") && !machine_type("X86") &&
- !machine_type("S390X"))
+ !machine_type("S390X") &&
+ !machine_type("LOONGARCH64"))
error(INFO, "--kaslr not valid "
"with this machine type.\n");
else if (STREQ(optarg, "auto"))
diff --git a/netdump.c b/netdump.c
index 61ddeaa..bc6c01a 100644
--- a/netdump.c
+++ b/netdump.c
@@ -43,6 +43,7 @@ static void get_netdump_regs_arm(struct bt_info *, ulong *, ulong *);
static void get_netdump_regs_arm64(struct bt_info *, ulong *, ulong *);
static void get_netdump_regs_mips(struct bt_info *, ulong *, ulong *);
static void get_netdump_regs_riscv(struct bt_info *, ulong *, ulong *);
+static void get_netdump_regs_loongarch64(struct bt_info *, ulong *, ulong *);
static void check_dumpfile_size(char *);
static int proc_kcore_init_32(FILE *, int);
static int proc_kcore_init_64(FILE *, int);
@@ -312,6 +313,12 @@ is_netdump(char *file, ulong source_query)
goto bailout;
break;
+ case EM_LOONGARCH:
+ if (machine_type_mismatch(file, "LOONGARCH64", NULL,
+ source_query))
+ goto bailout;
+ break;
+
default:
if (machine_type_mismatch(file, "(unknown)", NULL,
source_query))
@@ -1494,6 +1501,9 @@ dump_Elf32_Ehdr(Elf32_Ehdr *elf)
case EM_MIPS:
netdump_print("(EM_MIPS)\n");
break;
+ case EM_LOONGARCH:
+ netdump_print("(EM_LOONGARCH)\n");
+ break;
default:
netdump_print("(unsupported)\n");
break;
@@ -1656,6 +1666,9 @@ dump_Elf64_Ehdr(Elf64_Ehdr *elf)
case EM_AARCH64:
netdump_print("(EM_AARCH64)\n");
break;
+ case EM_LOONGARCH:
+ netdump_print("(EM_LOONGARCH)\n");
+ break;
default:
netdump_print("(unsupported)\n");
break;
@@ -2684,6 +2697,9 @@ get_netdump_regs(struct bt_info *bt, ulong *eip, ulong *esp)
case EM_RISCV:
get_netdump_regs_riscv(bt, eip, esp);
break;
+ case EM_LOONGARCH:
+ return get_netdump_regs_loongarch64(bt, eip, esp);
+ break;
default:
error(FATAL,
@@ -2943,6 +2959,8 @@ display_regs_from_elf_notes(int cpu, FILE *ofp)
mips64_display_regs_from_elf_notes(cpu, ofp);
} else if (machine_type("RISCV64")) {
riscv64_display_regs_from_elf_notes(cpu, ofp);
+ } else if (machine_type("LOONGARCH64")) {
+ loongarch64_display_regs_from_elf_notes(cpu, ofp);
}
}
@@ -2954,7 +2972,7 @@ dump_registers_for_elf_dumpfiles(void)
if (!(machine_type("X86") || machine_type("X86_64") ||
machine_type("ARM64") || machine_type("PPC64") ||
machine_type("MIPS") || machine_type("MIPS64") ||
- machine_type("RISCV64")))
+ machine_type("RISCV64") || machine_type("LOONGARCH64")))
error(FATAL, "-r option not supported for this dumpfile\n");
if (NETDUMP_DUMPFILE()) {
@@ -3895,6 +3913,12 @@ get_netdump_regs_riscv(struct bt_info *bt, ulong *eip, ulong *esp)
machdep->get_stack_frame(bt, eip, esp);
}
+static void
+get_netdump_regs_loongarch64(struct bt_info *bt, ulong *eip, ulong *esp)
+{
+ machdep->get_stack_frame(bt, eip, esp);
+}
+
int
is_partial_netdump(void)
{
diff --git a/ramdump.c b/ramdump.c
index d2bd7ff..b67ebeb 100644
--- a/ramdump.c
+++ b/ramdump.c
@@ -190,6 +190,8 @@ char *ramdump_to_elf(void)
e_machine = EM_X86_64;
else if (machine_type("RISCV64"))
e_machine = EM_RISCV;
+ else if (machine_type("LOONGARCH64"))
+ e_machine = EM_LOONGARCH;
else
error(FATAL, "ramdump: unsupported machine type: %s\n",
MACHINE_TYPE);
diff --git a/symbols.c b/symbols.c
index 876be7a..5208d3d 100644
--- a/symbols.c
+++ b/symbols.c
@@ -629,7 +629,8 @@ kaslr_init(void)
char *string;
if ((!machine_type("X86_64") && !machine_type("ARM64") && !machine_type("X86") &&
- !machine_type("S390X")) || (kt->flags & RELOC_SET))
+ !machine_type("S390X") && !machine_type("LOONGARCH64")) ||
+ (kt->flags & RELOC_SET))
return;
if (!kt->vmcoreinfo._stext_SYMBOL &&
@@ -795,7 +796,7 @@ store_symbols(bfd *abfd, int dynamic, void *minisyms, long symcount,
} else if (!(kt->flags & RELOC_SET))
kt->flags |= RELOC_FORCE;
} else if (machine_type("X86_64") || machine_type("ARM64") ||
- machine_type("S390X")) {
+ machine_type("S390X") || machine_type("LOONGARCH64")) {
if ((kt->flags2 & RELOC_AUTO) && !(kt->flags & RELOC_SET))
derive_kaslr_offset(abfd, dynamic, from,
fromend, size, store);
@@ -867,7 +868,8 @@ store_sysmap_symbols(void)
strerror(errno));
if (!machine_type("X86") && !machine_type("X86_64") &&
- !machine_type("ARM64") && !machine_type("S390X"))
+ !machine_type("ARM64") && !machine_type("S390X") &&
+ !machine_type("LOONGARCH64"))
kt->flags &= ~RELOC_SET;
first = 0;
@@ -2976,9 +2978,11 @@ store_module_kallsyms_v2(struct load_module *lm, int start, int curr,
/*
* On ARM/ARM64 we have linker mapping symbols like '$a'
* or '$x' for ARM64, and '$d'.
+ * On LoongArch we have linker mapping symbols like '.L'
+ * or 'L0'.
* Make sure that these don't end up into our symbol list.
*/
- if ((machine_type("ARM") || machine_type("ARM64")) &&
+ if ((machine_type("ARM") || machine_type("ARM64") || machine_type("LOONGARCH64")) &&
!machdep->verify_symbol(nameptr, ec->st_value, ec->st_info))
continue;
@@ -4229,6 +4233,11 @@ is_kernel(char *file)
goto bailout;
break;
+ case EM_LOONGARCH:
+ if (machine_type_mismatch(file, "LOONGARCH64", NULL, 0))
+ goto bailout;
+ break;
+
default:
if (machine_type_mismatch(file, "(unknown)", NULL, 0))
goto bailout;
@@ -4549,6 +4558,11 @@ is_shared_object(char *file)
break;
}
+ case EM_LOONGARCH:
+ if (machine_type("LOONGARCH64"))
+ return TRUE;
+ break;
+
if (CRASHDEBUG(1))
error(INFO, "%s: machine type mismatch: %d\n",
file, swap16(elf32->e_machine, swap));
@@ -9795,6 +9809,10 @@ dump_offset_table(char *spec, ulong makestruct)
OFFSET(task_struct_thread_esp));
fprintf(fp, " task_struct_thread_ksp: %ld\n",
OFFSET(task_struct_thread_ksp));
+ fprintf(fp, " task_struct_thread_reg01: %ld\n",
+ OFFSET(task_struct_thread_reg01));
+ fprintf(fp, " task_struct_thread_reg03: %ld\n",
+ OFFSET(task_struct_thread_reg03));
fprintf(fp, " task_struct_thread_reg29: %ld\n",
OFFSET(task_struct_thread_reg29));
fprintf(fp, " task_struct_thread_reg31: %ld\n",
--
2.39.2
--
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