+#define RISCV64
+#endif
#endif
#ifdef X86
@@ -159,6 +162,9 @@
#ifdef SPARC64
#define NR_CPUS (4096)
#endif
+#ifdef RISCV64
+#define NR_CPUS (256)
+#endif
#define NR_DEVICE_DUMPS (64)
@@ -3484,6 +3490,63 @@ struct arm64_stackframe {
#define _MAX_PHYSMEM_BITS 48
#endif /* MIPS64 */
+#ifdef RISCV64
+#define _64BIT_
+#define MACHINE_TYPE "RISCV64"
+
+/*
+ * Direct memory mapping
+ */
+#define PTOV(X) \
+ (((unsigned long)(X)+(machdep->kvbase)) - machdep->machspec->phys_base)
+#define VTOP(X) ({ \
+ ulong _X = X; \
+ (THIS_KERNEL_VERSION >= 0x50D00 && \
+ (_X) >= machdep->machspec->kernel_link_addr) ? \
+ (((unsigned long)(_X)-(machdep->machspec->kernel_link_addr)) + \
+ machdep->machspec->phys_base): \
+ (((unsigned long)(_X)-(machdep->kvbase)) + \
+ machdep->machspec->phys_base); \
+ })
+#define PAGEBASE(X) (((ulong)(X)) & (ulong)machdep->pagemask)
+
+/*
+ * Stack size order
+ */
+#define THREAD_SIZE_ORDER 2
+
+#define PAGE_OFFSET (machdep->machspec->page_offset)
+#define VMALLOC_START (machdep->machspec->vmalloc_start_addr)
+#define VMALLOC_END (machdep->machspec->vmalloc_end)
+#define VMEMMAP_VADDR (machdep->machspec->vmemmap_vaddr)
+#define VMEMMAP_END (machdep->machspec->vmemmap_end)
+#define MODULES_VADDR (machdep->machspec->modules_vaddr)
+#define MODULES_END (machdep->machspec->modules_end)
+#define IS_VMALLOC_ADDR(X) riscv64_IS_VMALLOC_ADDR((ulong)(X))
+
+/* from arch/riscv/include/asm/pgtable.h */
+#define __SWP_TYPE_SHIFT 6
+#define __SWP_TYPE_BITS 5
+#define __SWP_TYPE_MASK ((1UL << __SWP_TYPE_BITS) - 1)
+#define __SWP_OFFSET_SHIFT (__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
+
+#define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > __SWP_TYPE_BITS)
+
+#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 (THIS_KERNEL_VERSION >= LINUX(2,6,23) ? 1 : 2)
+
+/* from arch/riscv/include/asm/sparsemem.h */
+#define _SECTION_SIZE_BITS 27
+#define _MAX_PHYSMEM_BITS 56 /* 56-bit physical address supported */
+#define PHYS_MASK_SHIFT _MAX_PHYSMEM_BITS
+#define PHYS_MASK (((1UL) << PHYS_MASK_SHIFT) - 1)
+
+#endif /* RISCV64 */
+
#ifdef X86
#define _32BIT_
#define MACHINE_TYPE "X86"
@@ -4532,6 +4595,10 @@ struct machine_specific {
#define MAX_HEXADDR_STRLEN (16)
#define UVADDR_PRLEN (16)
#endif
+#ifdef RISCV64
+#define MAX_HEXADDR_STRLEN (16)
+#define UVADDR_PRLEN (16)
+#endif
#define BADADDR ((ulong)(-1))
#define BADVAL ((ulong)(-1))
@@ -5126,6 +5193,9 @@ void dump_build_data(void);
#ifdef MIPS64
#define machdep_init(X) mips64_init(X)
#endif
+#ifdef RISCV64
+#define machdep_init(X) riscv64_init(X)
+#endif
#ifdef SPARC64
#define machdep_init(X) sparc64_init(X)
#endif
@@ -5606,6 +5676,9 @@ void display_help_screen(char *);
#ifdef SPARC64
#define dump_machdep_table(X) sparc64_dump_machdep_table(X)
#endif
+#ifdef RISCV64
+#define dump_machdep_table(X) riscv64_dump_machdep_table(X)
+#endif
extern char *help_pointer[];
extern char *help_alias[];
extern char *help_ascii[];
@@ -6682,6 +6755,86 @@ struct machine_specific {
#endif /* MIPS64 */
+/*
+ * riscv64.c
+ */
+void riscv64_display_regs_from_elf_notes(int, FILE *);
+
+#ifdef RISCV64
+void riscv64_init(int);
+void riscv64_dump_machdep_table(ulong);
+int riscv64_IS_VMALLOC_ADDR(ulong);
+
+#define display_idt_table() \
+ error(FATAL, "-d option is not applicable to RISCV64 architecture\n")
+
+/* from arch/riscv/include/asm/ptrace.h */
+struct riscv64_register {
+ ulong regs[36];
+};
+
+struct riscv64_pt_regs {
+ ulong badvaddr;
+ ulong cause;
+ ulong epc;
+};
+
+struct riscv64_unwind_frame {
+ ulong fp;
+ ulong sp;
+ ulong pc;
+};
+
+#define KSYMS_START (0x1)
+
+struct machine_specific {
+ ulong phys_base;
+ ulong page_offset;
+ ulong vmalloc_start_addr;
+ ulong vmalloc_end;
+ ulong vmemmap_vaddr;
+ ulong vmemmap_end;
+ ulong modules_vaddr;
+ ulong modules_end;
+ ulong kernel_link_addr;
+ ulong address_space_end;
+
+ ulong _page_present;
+ ulong _page_read;
+ ulong _page_write;
+ ulong _page_exec;
+ ulong _page_user;
+ ulong _page_global;
+ ulong _page_accessed;
+ ulong _page_dirty;
+ ulong _page_soft;
+
+ ulong _pfn_shift;
+
+ struct riscv64_register *crash_task_regs;
+};
+/* from arch/riscv/include/asm/pgtable-bits.h */
+#define _PAGE_PRESENT (machdep->machspec->_page_present)
+#define _PAGE_READ (machdep->machspec->_page_read)
+#define _PAGE_WRITE (machdep->machspec->_page_write)
+#define _PAGE_EXEC (machdep->machspec->_page_exec)
+#define _PAGE_USER (machdep->machspec->_page_user)
+#define _PAGE_GLOBAL (machdep->machspec->_page_global)
+#define _PAGE_ACCESSED (machdep->machspec->_page_accessed)
+#define _PAGE_DIRTY (machdep->machspec->_page_dirty)
+#define _PAGE_SOFT (machdep->machspec->_page_soft)
+#define _PAGE_SEC (machdep->machspec->_page_sec)
+#define _PAGE_SHARE (machdep->machspec->_page_share)
+#define _PAGE_BUF (machdep->machspec->_page_buf)
+#define _PAGE_CACHE (machdep->machspec->_page_cache)
+#define _PAGE_SO (machdep->machspec->_page_so)
+#define _PAGE_SPECIAL _PAGE_SOFT
+#define _PAGE_TABLE _PAGE_PRESENT
+#define _PAGE_PROT_NONE _PAGE_READ
+#define _PAGE_PFN_SHIFT 10
+
+#endif /* RISCV64 */
+
/*
* sparc64.c
*/
diff --git a/diskdump.c b/diskdump.c
index 2c1f9be..28503bc 100644
--- a/diskdump.c
+++ b/diskdump.c
@@ -622,6 +622,9 @@ restart:
else if (STRNEQ(header->utsname.machine, "aarch64") &&
machine_type_mismatch(file, "ARM64", NULL, 0))
goto err;
+ else if (STRNEQ(header->utsname.machine, "riscv64") &&
+ machine_type_mismatch(file, "RISCV64", NULL, 0))
+ goto err;
if (header->block_size != block_size) {
block_size = header->block_size;
@@ -780,6 +783,8 @@ restart:
dd->machine_type = EM_AARCH64;
else if (machine_type("SPARC64"))
dd->machine_type = EM_SPARCV9;
+ else if (machine_type("RISCV64"))
+ dd->machine_type = EM_RISCV;
else {
error(INFO, "%s: unsupported machine type: %s\n",
DISKDUMP_VALID() ? "diskdump" : "compressed kdump",
@@ -1751,7 +1756,8 @@ dump_note_offsets(FILE *fp)
qemu = FALSE;
if (machine_type("X86_64") || machine_type("S390X") ||
machine_type("ARM64") || machine_type("PPC64") ||
- machine_type("SPARC64") || machine_type("MIPS64")) {
+ machine_type("SPARC64") || machine_type("MIPS64") ||
+ machine_type("RISCV64")) {
note64 = (void *)dd->notes_buf + tot;
len = sizeof(Elf64_Nhdr);
if (STRNEQ((char *)note64 + len, "QEMU"))
@@ -2558,7 +2564,8 @@ dump_registers_for_compressed_kdump(void)
if (!KDUMP_CMPRS_VALID() || (dd->header->header_version < 4) ||
!(machine_type("X86") || machine_type("X86_64") ||
machine_type("ARM64") || machine_type("PPC64") ||
- machine_type("MIPS") || machine_type("MIPS64")))
+ machine_type("MIPS") || machine_type("MIPS64") ||
+ machine_type("RISCV64")))
error(FATAL, "-r option not supported for this dumpfile\n");
if (machine_type("ARM64") && (kt->cpus != dd->num_prstatus_notes))
diff --git a/help.c b/help.c
index 99214c1..253c71b 100644
--- a/help.c
+++ b/help.c
@@ -9512,7 +9512,7 @@ char *README[] = {
" These are the current prerequisites: ",
"",
" o At this point, x86, ia64, x86_64, ppc64, ppc, arm, arm64, alpha, mips,",
-" mips64, s390 and s390x-based kernels are supported. Other architectures",
+" mips64, riscv64, 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",
diff --git a/lkcd_vmdump_v2_v3.h b/lkcd_vmdump_v2_v3.h
index 984c2c2..7fa70b9 100644
--- a/lkcd_vmdump_v2_v3.h
+++ b/lkcd_vmdump_v2_v3.h
@@ -37,7 +37,7 @@
#if defined(ARM) || defined(X86) || defined(PPC) || defined(S390) || \
defined(S390X) || defined(ARM64) || defined(MIPS) || \
- defined(MIPS64) || defined(SPARC64)
+ defined(MIPS64) || defined(SPARC64) || defined(RISCV64)
/*
* Kernel header file for Linux crash dumps.
diff --git a/netdump.c b/netdump.c
index ff273b4..4ec12a0 100644
--- a/netdump.c
+++ b/netdump.c
@@ -300,6 +300,12 @@ is_netdump(char *file, ulong source_query)
goto bailout;
break;
+ case EM_RISCV:
+ if (machine_type_mismatch(file, "RISCV64", NULL,
+ source_query))
+ goto bailout;
+ break;
+
default:
if (machine_type_mismatch(file, "(unknown)", NULL,
source_query))
@@ -2935,7 +2941,8 @@ 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("MIPS") || machine_type("MIPS64") ||
+ machine_type("RISCV64")))
error(FATAL, "-r option not supported for this dumpfile\n");
if (NETDUMP_DUMPFILE()) {
diff --git a/ramdump.c b/ramdump.c
index a206fcb..d2bd7ff 100644
--- a/ramdump.c
+++ b/ramdump.c
@@ -188,6 +188,8 @@ char *ramdump_to_elf(void)
e_machine = EM_MIPS;
else if (machine_type("X86_64"))
e_machine = EM_X86_64;
+ else if (machine_type("RISCV64"))
+ e_machine = EM_RISCV;
else
error(FATAL, "ramdump: unsupported machine type: %s\n",
MACHINE_TYPE);
diff --git a/riscv64.c b/riscv64.c
new file mode 100644
index 0000000..c7df857
--- /dev/null
+++ b/riscv64.c
@@ -0,0 +1,56 @@
+/* riscv64.c - core analysis suite
+ *
+ * Copyright (C) 2022 Alibaba Group Holding Limited.
+ *
+ * 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 RISCV64
+
+#include <elf.h>
+#include "defs.h"
+
+void
+riscv64_dump_machdep_table(ulong arg)
+{
+}
+
+/*
+ * Include both vmalloc'd and module address space as VMALLOC space.
+ */
+int
+riscv64_IS_VMALLOC_ADDR(ulong vaddr)
+{
+ return ((vaddr >= VMALLOC_START && vaddr <= VMALLOC_END) ||
+ (vaddr >= VMEMMAP_VADDR && vaddr <= VMEMMAP_END) ||
+ (vaddr >= MODULES_VADDR && vaddr <= MODULES_END));
+}
+
+void
+riscv64_init(int when)
+{
+}
+
+void
+riscv64_display_regs_from_elf_notes(int cpu, FILE *ofp)
+{
+}
+
+#else /* !RISCV64 */
+
+#include "defs.h"
+
+void
+riscv64_display_regs_from_elf_notes(int cpu, FILE *ofp)
+{
+ return;
+}
+
+#endif /* !RISCV64 */
diff --git a/symbols.c b/symbols.c
index bee1faf..ea9e83e 100644
--- a/symbols.c
+++ b/symbols.c
@@ -3743,6 +3743,11 @@ is_kernel(char *file)
goto bailout;
break;
+ case EM_RISCV:
+ if (machine_type_mismatch(file, "RISCV64", NULL, 0))
+ goto bailout;
+ break;
+
default:
if (machine_type_mismatch(file, "(unknown)", NULL, 0))
goto bailout;
@@ -4002,6 +4007,11 @@ is_shared_object(char *file)
if (machine_type("MIPS64"))
return TRUE;
break;
+
+ case EM_RISCV:
+ if (machine_type("RISCV64"))
+ return TRUE;
+ break;
}
if (CRASHDEBUG(1))
--
2.17.1
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