This code deals with the ARC ABI. Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx> --- ChangeLog | 20 ++++++++++++ sysdeps/arc/__longjmp.S | 50 ++++++++++++++++++++++++++++ sysdeps/arc/abort-instr.h | 2 ++ sysdeps/arc/bits/endian.h | 12 +++++++ sysdeps/arc/bits/setjmp.h | 33 +++++++++++++++++++ sysdeps/arc/bsd-_setjmp.S | 1 + sysdeps/arc/bsd-setjmp.S | 1 + sysdeps/arc/crti.S | 77 ++++++++++++++++++++++++++++++++++++++++++++ sysdeps/arc/crtn.S | 56 ++++++++++++++++++++++++++++++++ sysdeps/arc/dl-runtime.c | 21 ++++++++++++ sysdeps/arc/dl-sysdep.h | 25 ++++++++++++++ sysdeps/arc/dl-trampoline.S | 72 +++++++++++++++++++++++++++++++++++++++++ sysdeps/arc/gccframe.h | 21 ++++++++++++ sysdeps/arc/gmp-mparam.h | 23 +++++++++++++ sysdeps/arc/jmpbuf-offsets.h | 46 ++++++++++++++++++++++++++ sysdeps/arc/jmpbuf-unwind.h | 47 +++++++++++++++++++++++++++ sysdeps/arc/machine-gmon.h | 33 +++++++++++++++++++ sysdeps/arc/memusage.h | 23 +++++++++++++ sysdeps/arc/setjmp.S | 64 ++++++++++++++++++++++++++++++++++++ sysdeps/arc/sysdep.h | 49 ++++++++++++++++++++++++++++ sysdeps/arc/tls-macros.h | 29 +++++++++++++++++ 21 files changed, 705 insertions(+) create mode 100644 sysdeps/arc/__longjmp.S create mode 100644 sysdeps/arc/abort-instr.h create mode 100644 sysdeps/arc/bits/endian.h create mode 100644 sysdeps/arc/bits/setjmp.h create mode 100644 sysdeps/arc/bsd-_setjmp.S create mode 100644 sysdeps/arc/bsd-setjmp.S create mode 100644 sysdeps/arc/crti.S create mode 100644 sysdeps/arc/crtn.S create mode 100644 sysdeps/arc/dl-runtime.c create mode 100644 sysdeps/arc/dl-sysdep.h create mode 100644 sysdeps/arc/dl-trampoline.S create mode 100644 sysdeps/arc/gccframe.h create mode 100644 sysdeps/arc/gmp-mparam.h create mode 100644 sysdeps/arc/jmpbuf-offsets.h create mode 100644 sysdeps/arc/jmpbuf-unwind.h create mode 100644 sysdeps/arc/machine-gmon.h create mode 100644 sysdeps/arc/memusage.h create mode 100644 sysdeps/arc/setjmp.S create mode 100644 sysdeps/arc/sysdep.h create mode 100644 sysdeps/arc/tls-macros.h diff --git a/ChangeLog b/ChangeLog index 3ec6eb82d2fe..c2efdafa9861 100644 --- a/ChangeLog +++ b/ChangeLog @@ -4,6 +4,26 @@ syscall-template file. * stdlib/longlong.h: Fix asm constraints for ARC code. * elf/elf.h: add defines for ARC. + * sysdeps/arc/__longjmp.S: New file. + * sysdeps/arc/abort-instr.h: New file. + * sysdeps/arc/bits/endian.h: New file. + * sysdeps/arc/bits/setjmp.h: New file. + * sysdeps/arc/bsd-_setjmp.S: New file. + * sysdeps/arc/bsd-setjmp.S: New file. + * sysdeps/arc/crti.S: New file. + * sysdeps/arc/crtn.S: New file. + * sysdeps/arc/dl-runtime.c: New file. + * sysdeps/arc/dl-sysdep.h: New file. + * sysdeps/arc/dl-trampoline.S: New file. + * sysdeps/arc/gccframe.h: New file. + * sysdeps/arc/gmp-mparam.h: New file. + * sysdeps/arc/jmpbuf-offsets.h: New file. + * sysdeps/arc/jmpbuf-unwind.h: New file. + * sysdeps/arc/machine-gmon.h: New file. + * sysdeps/arc/memusage.h: New file. + * sysdeps/arc/setjmp.S: New file. + * sysdeps/arc/sysdep.h: New file. + * sysdeps/arc/tls-macros.h: New file. 2018-12-17 Joseph Myers <joseph@xxxxxxxxxxxxxxxx> diff --git a/sysdeps/arc/__longjmp.S b/sysdeps/arc/__longjmp.S new file mode 100644 index 000000000000..5ef271536bcc --- /dev/null +++ b/sysdeps/arc/__longjmp.S @@ -0,0 +1,50 @@ +/* longjmp for ARC. + Copyright (C) 2017-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include <jmpbuf-offsets.h> + +;@ r0 = jump buffer from which regs will be restored +;@ r1 = value that setjmp( ) will return due to this longjmp + +ENTRY(__longjmp) + + ld_s r13, [r0] + ld_s r14, [r0,4] + ld r15, [r0,8] + ld r16, [r0,12] + ld r17, [r0,16] + ld r18, [r0,20] + ld r19, [r0,24] + ld r20, [r0,28] + ld r21, [r0,32] + ld r22, [r0,36] + ld r23, [r0,40] + ld r24, [r0,44] + ld r25, [r0,48] + + ld blink, [r0,60] + ld fp, [r0,52] + ld sp, [r0,56] + + mov.f r0, r1 ; get the setjmp return value(due to longjmp) in place + + j.d [blink] ; to caller of setjmp location, right after the call + mov.z r0, 1 ; can't let setjmp return 0 when it is due to longjmp + +END(__longjmp) diff --git a/sysdeps/arc/abort-instr.h b/sysdeps/arc/abort-instr.h new file mode 100644 index 000000000000..474098e9a819 --- /dev/null +++ b/sysdeps/arc/abort-instr.h @@ -0,0 +1,2 @@ +/* FLAG 1 is privilege mode only instruction, hence will crash any program */ +#define ABORT_INSTRUCTION asm ("flag 1") diff --git a/sysdeps/arc/bits/endian.h b/sysdeps/arc/bits/endian.h new file mode 100644 index 000000000000..88fbcf39a58a --- /dev/null +++ b/sysdeps/arc/bits/endian.h @@ -0,0 +1,12 @@ +/* The ARC architecture has selectable endianness. */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +#ifdef __BIG_ENDIAN__ +# define __BYTE_ORDER __BIG_ENDIAN +#endif +#ifdef __LITTLE_ENDIAN__ +# define __BYTE_ORDER __LITTLE_ENDIAN +#endif diff --git a/sysdeps/arc/bits/setjmp.h b/sysdeps/arc/bits/setjmp.h new file mode 100644 index 000000000000..3a014955ee5a --- /dev/null +++ b/sysdeps/arc/bits/setjmp.h @@ -0,0 +1,33 @@ +/* Define the machine-dependent type `jmp_buf'. ARC version. + Copyright (C) 1992-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _BITS_SETJMP_H +#define _BITS_SETJMP_H 1 + +#if !defined(_SETJMP_H) && !defined(_PTHREAD_H) +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef __ASSEMBLER__ + +/* Saves r13-r25 (callee-saved), fp (frame pointer), sp (stack pointer), + * blink (branch-n-link) */ +typedef int __jmp_buf[32]; +#endif + +#endif diff --git a/sysdeps/arc/bsd-_setjmp.S b/sysdeps/arc/bsd-_setjmp.S new file mode 100644 index 000000000000..4e6a2da560c4 --- /dev/null +++ b/sysdeps/arc/bsd-_setjmp.S @@ -0,0 +1 @@ +/* _setjmp is in setjmp.S */ diff --git a/sysdeps/arc/bsd-setjmp.S b/sysdeps/arc/bsd-setjmp.S new file mode 100644 index 000000000000..1da848d2f1ee --- /dev/null +++ b/sysdeps/arc/bsd-setjmp.S @@ -0,0 +1 @@ +/* setjmp is in setjmp.S */ diff --git a/sysdeps/arc/crti.S b/sysdeps/arc/crti.S new file mode 100644 index 000000000000..8b823b54a29d --- /dev/null +++ b/sysdeps/arc/crti.S @@ -0,0 +1,77 @@ +/* Special .init and .fini section support for ARC. + Copyright (C) 2012-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The GNU Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + Note that people who make modified versions of this file are not + obligated to grant this special exception for their modified + versions; it is their choice whether to do so. The GNU Lesser + General Public License gives permission to release a modified + version without this exception; this exception also makes it + possible to release a modified version which carries forward this + exception. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <libc-symbols.h> +#include <sysdep.h> + +#ifndef PREINIT_FUNCTION +# define PREINIT_FUNCTION __gmon_start__ +#endif + +#ifndef PREINIT_FUNCTION_WEAK +# define PREINIT_FUNCTION_WEAK 1 +#endif + +#if PREINIT_FUNCTION_WEAK + weak_extern (PREINIT_FUNCTION) +#else + .hidden PREINIT_FUNCTION +#endif + + .section .init + .align 4 + .global _init + .type _init,@function +_init: + st.a blink, [sp,-4] + st.a fp, [sp,-4] + mov fp, sp +#if PREINIT_FUNCTION_WEAK + ld r0, [pcl, @PREINIT_FUNCTION@gotpc] + tst r0, r0 + jlnz [r0] +#else + bl PREINIT_FUNCTION +#endif + + .section .fini + .align 4 + .global _fini + .type _fini,@function +_fini: + st.a blink,[sp,-4] + st.a fp,[sp,-4] + mov fp,sp + .align 4 diff --git a/sysdeps/arc/crtn.S b/sysdeps/arc/crtn.S new file mode 100644 index 000000000000..c6c58c5593c9 --- /dev/null +++ b/sysdeps/arc/crtn.S @@ -0,0 +1,56 @@ +/* Special .init and .fini section support for ARC. + Copyright (C) 2012-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The GNU Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + Note that people who make modified versions of this file are not + obligated to grant this special exception for their modified + versions; it is their choice whether to do so. The GNU Lesser + General Public License gives permission to release a modified + version without this exception; this exception also makes it + possible to release a modified version which carries forward this + exception. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + + .section .init + .align 4 + .global _init + .type _init,@function + ; EPILOGUE + ld.ab fp,[sp,4] + ld blink,[sp,0] + j.d [blink] + add sp,sp,4 +; .size _init,.-_init + + .section .fini + .align 4 + .global _fini + .type _fini,@function + ; EPILOGUE + ld.ab fp,[sp,4] + ld blink,[sp,0] + j.d [blink] + add sp,sp,4 +; .size _fini,.-_fini diff --git a/sysdeps/arc/dl-runtime.c b/sysdeps/arc/dl-runtime.c new file mode 100644 index 000000000000..76d39fab5ab8 --- /dev/null +++ b/sysdeps/arc/dl-runtime.c @@ -0,0 +1,21 @@ +/* PLT jump into resolver passes PC of PLTn, while _dl_fixup expects the + address of corresponding .rela.plt entry */ + +#ifdef __A7__ +#define ARC_PLT_SIZE 12 +#else +#define ARC_PLT_SIZE 16 +#endif + +#define reloc_index \ +({ \ + unsigned long plt0 = D_PTR (l, l_info[DT_PLTGOT]); \ + unsigned long pltn = reloc_arg; \ + /* exclude PL0 and PLT1 */ \ + unsigned long idx = (pltn - plt0)/ARC_PLT_SIZE - 2; \ + idx; \ +}) + +#define reloc_offset reloc_index * sizeof (PLTREL) + +#include <elf/dl-runtime.c> diff --git a/sysdeps/arc/dl-sysdep.h b/sysdeps/arc/dl-sysdep.h new file mode 100644 index 000000000000..a3e734c1020c --- /dev/null +++ b/sysdeps/arc/dl-sysdep.h @@ -0,0 +1,25 @@ +/* System-specific settings for dynamic linker code. ARC version. + Copyright (C) 2009-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include_next <dl-sysdep.h> + +/* _dl_argv cannot be attribute_relro, because _dl_start_user + might write into it after _dl_start returns. */ +#define DL_ARGV_NOT_RELRO 1 + +#define DL_EXTERN_PROTECTED_DATA diff --git a/sysdeps/arc/dl-trampoline.S b/sysdeps/arc/dl-trampoline.S new file mode 100644 index 000000000000..c704f0ff9a95 --- /dev/null +++ b/sysdeps/arc/dl-trampoline.S @@ -0,0 +1,72 @@ +/* PLT trampolines. ARC version. + Copyright (C) 2005-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include <libc-symbols.h> + +#include <sysdep.h> +#include <sys/syscall.h> + +; Save the registers which resolver could possibly clobber +; r0-r9: args to the function - symbol being resolved +; r10-r12 are already clobbered by PLTn, PLT0 thus neednot be saved + +.macro SAVE_CALLER_SAVED + push_s r0 + push_s r1 + push_s r2 + push_s r3 + st.a r4, [sp, -4] + st.a r5, [sp, -4] + st.a r6, [sp, -4] + st.a r7, [sp, -4] + st.a r8, [sp, -4] + st.a r9, [sp, -4] + push_s blink +.endm + +.macro RESTORE_CALLER_SAVED_BUT_R0 + ld.ab blink,[sp, 4] + ld.ab r9, [sp, 4] + ld.ab r8, [sp, 4] + ld.ab r7, [sp, 4] + ld.ab r6, [sp, 4] + ld.ab r5, [sp, 4] + ld.ab r4, [sp, 4] + pop_s r3 + pop_s r2 + pop_s r1 +.endm + +; Upon entry, PLTn, which led us here, sets up the following regs +; r11 = Module info (tpnt pointer as expected by resolver) +; r12 = PC of the PLTn itself - needed by resolver to find +; corresponding .rela.plt entry + +ENTRY(_dl_runtime_resolve) + ; args to func being resolved, which resolver might clobber + SAVE_CALLER_SAVED + + mov_s r1, r12 + bl.d _dl_fixup + mov r0, r11 + + RESTORE_CALLER_SAVED_BUT_R0 + j_s.d [r0] ; r0 has resolved function addr + pop_s r0 ; restore first arg to resolved call +END(_dl_runtime_resolve) diff --git a/sysdeps/arc/gccframe.h b/sysdeps/arc/gccframe.h new file mode 100644 index 000000000000..54a1225284b6 --- /dev/null +++ b/sysdeps/arc/gccframe.h @@ -0,0 +1,21 @@ +/* Definition of object in frame unwind info. ARC version. + Copyright (C) 2017-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#define FIRST_PSEUDO_REGISTER 40 + +#include <sysdeps/generic/gccframe.h> diff --git a/sysdeps/arc/gmp-mparam.h b/sysdeps/arc/gmp-mparam.h new file mode 100644 index 000000000000..2b09517766e3 --- /dev/null +++ b/sysdeps/arc/gmp-mparam.h @@ -0,0 +1,23 @@ +/* gmp-mparam.h -- Compiler/machine parameter header file. + +Copyright (C) 2017-2018 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or (at your +option) any later version. + +The GNU MP Library 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 Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the GNU MP Library; see the file COPYING.LIB. If not, see +<http://www.gnu.org/licenses/>. */ + +#include <sysdeps/generic/gmp-mparam.h> + +#define IEEE_DOUBLE_BIG_ENDIAN 0 diff --git a/sysdeps/arc/jmpbuf-offsets.h b/sysdeps/arc/jmpbuf-offsets.h new file mode 100644 index 000000000000..c9cf4bc2e355 --- /dev/null +++ b/sysdeps/arc/jmpbuf-offsets.h @@ -0,0 +1,46 @@ +/* Private macros for accessing __jmp_buf contents. ARC version. + Copyright (C) 2006-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +/* Save offsets within __jmp_buf. */ +/* We don't use most of these symbols; they are here for documentation. */ + +/* Callee Regs */ +#define JB_R13 0 +#define JB_R14 1 +#define JB_R15 2 +#define JB_R16 3 +#define JB_R17 4 +#define JB_R18 5 +#define JB_R19 6 +#define JB_R20 7 +#define JB_R21 8 +#define JB_R22 9 +#define JB_R23 10 +#define JB_R24 11 +#define JB_R25 12 + +/* Frame Pointer, Stack Pointer, Branch-n-link */ +#define JB_FP 13 +#define JB_SP 14 +#define JB_BLINK 15 + +/* We save space for some extra state to accommodate future changes. */ +#define JB_NUM 32 /* words */ + +/* Helper for generic ____longjmp_chk(). */ +#define JB_FRAME_ADDRESS(buf) ((void *) (unsigned long) (buf[JB_SP])) diff --git a/sysdeps/arc/jmpbuf-unwind.h b/sysdeps/arc/jmpbuf-unwind.h new file mode 100644 index 000000000000..d87ac13b3416 --- /dev/null +++ b/sysdeps/arc/jmpbuf-unwind.h @@ -0,0 +1,47 @@ +/* Examine __jmp_buf for unwinding frames. ARC version. + Copyright (C) 2005-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <setjmp.h> +#include <jmpbuf-offsets.h> +#include <stdint.h> +#include <unwind.h> + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ + +#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \ + ((void *) (address) < (void *) demangle (jmpbuf[JB_SP])) + +#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ + _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj) + +static inline uintptr_t __attribute__ ((unused)) +_jmpbuf_sp (__jmp_buf jmpbuf) +{ + uintptr_t sp = jmpbuf[JB_SP]; +#ifdef PTR_DEMANGLE + PTR_DEMANGLE (sp); +#endif + return sp; +} + +#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ + ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf_sp (_jmpbuf) - (_adj))) + +/* We use the normal longjmp for unwinding. */ +#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val) diff --git a/sysdeps/arc/machine-gmon.h b/sysdeps/arc/machine-gmon.h new file mode 100644 index 000000000000..55facf77a858 --- /dev/null +++ b/sysdeps/arc/machine-gmon.h @@ -0,0 +1,33 @@ +/* Machine-dependent definitions for profiling support. ARC version. + Copyright (C) 1996-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> + +#define _MCOUNT_DECL(frompc, selfpc) +static void __mcount_internal (unsigned long frompc, unsigned long selfpc) + +/* this is very simple as gcc does all the heavy lifting at _mcount call site + * - sets up caller's blink in r0, so frompc is setup correctly + * - preserve argument registers for original call */ + +#define MCOUNT \ +void _mcount (void *frompc) \ +{ \ + __mcount_internal ((unsigned long int) frompc, \ + (unsigned long int) __builtin_return_address(0)); \ +} diff --git a/sysdeps/arc/memusage.h b/sysdeps/arc/memusage.h new file mode 100644 index 000000000000..536f1fdbf614 --- /dev/null +++ b/sysdeps/arc/memusage.h @@ -0,0 +1,23 @@ +/* Machine-specific definitions for memory usage profiling, ARC version. + Copyright (C) 2000-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#define GETSP() ({ register uintptr_t stack_ptr asm ("sp"); stack_ptr; }) + +#define uatomic32_t unsigned int + +#include <sysdeps/generic/memusage.h> diff --git a/sysdeps/arc/setjmp.S b/sysdeps/arc/setjmp.S new file mode 100644 index 000000000000..cbd44e538339 --- /dev/null +++ b/sysdeps/arc/setjmp.S @@ -0,0 +1,64 @@ +/* setjmp for ARC. + Copyright (C) 1991-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + + +#include <sysdep.h> + +;@ r0 = jump buffer into which regs will be saved +ENTRY(setjmp) + b.d __sigsetjmp + mov r1, 1 ; save signals +END(setjmp) + +;@ r0 = jump buffer into which regs will be saved +ENTRY(_setjmp) + b.d __sigsetjmp + mov r1, 0 ; don't save signals +END(_setjmp) +libc_hidden_def(_setjmp) + +;@ r0 = jump buffer into which regs will be saved +;@ r1 = do we need to save signals +ENTRY(__sigsetjmp) + + st_s r13, [r0] + st_s r14, [r0,4] + st r15, [r0,8] + st r16, [r0,12] + st r17, [r0,16] + st r18, [r0,20] + st r19, [r0,24] + st r20, [r0,28] + st r21, [r0,32] + st r22, [r0,36] + st r23, [r0,40] + st r24, [r0,44] + st r25, [r0,48] + st fp, [r0,52] + st sp, [r0,56] + + ; make a note of where longjmp will return to. + ; that will be right next to this setjmp call-site which will be + ; contained in blink, since "C" caller of this routine will do + ; a branch-n-link + + st blink, [r0,60] + b __sigjmp_save + +END(__sigsetjmp) +libc_hidden_def(__sigsetjmp) diff --git a/sysdeps/arc/sysdep.h b/sysdeps/arc/sysdep.h new file mode 100644 index 000000000000..5c6e063d03fe --- /dev/null +++ b/sysdeps/arc/sysdep.h @@ -0,0 +1,49 @@ +/* Assembler macros for ARC. + Copyright (C) 2017-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdeps/generic/sysdep.h> + +#ifdef __ASSEMBLER__ + +/* Syntactic details of assembler. + * One weirness is ; is not newline but comment + * Although # is also for comment + */ + +#define ASM_SIZE_DIRECTIVE(name) .size name,.-name + +#define ENTRY(name) \ + .align 4 ASM_LINE_SEP \ + .globl C_SYMBOL_NAME(name) ASM_LINE_SEP \ + .type C_SYMBOL_NAME(name),%function ASM_LINE_SEP \ + C_LABEL(name) ASM_LINE_SEP \ + CALL_MCOUNT + +#undef END +#define END(name) \ + ASM_SIZE_DIRECTIVE(name) + +#ifdef SHARED +#define PLTJMP(_x) _x##@plt +#else +#define PLTJMP(_x) _x +#endif + +# define CALL_MCOUNT /* Do nothing for now. */ + +#endif /* __ASSEMBLER__ */ diff --git a/sysdeps/arc/tls-macros.h b/sysdeps/arc/tls-macros.h new file mode 100644 index 000000000000..51855edef6e7 --- /dev/null +++ b/sysdeps/arc/tls-macros.h @@ -0,0 +1,29 @@ +/* Macros to support TLS testing in times of missing compiler support. */ + +/* For now */ +#define TLS_LD(x) TLS_IE(x) + +#define TLS_GD(x) \ + ({ int *__result; \ + __asm__ ("add r0, pcl, @" #x "@tlsgd \n" \ + ".tls_gd_ld " #x "`bl __tls_get_addr@plt \n" \ + "mov %0, r0 \n" \ + : "=&r" (__result) \ + ::"r0","r1","r2","r3","r4","r5","r6","r7", \ + "r8","r9","r10","r11","r12"); \ + __result; }) + +#define TLS_LE(x) \ + ({ int *__result; \ + void *tp = __builtin_thread_pointer(); \ + __asm__ ("add %0, %1, @" #x "@tpoff \n" \ + : "=r" (__result) : "r"(tp)); \ + __result; }) + +#define TLS_IE(x) \ + ({ int *__result; \ + void *tp = __builtin_thread_pointer(); \ + __asm__ ("ld %0, [pcl, @" #x "@tlsie] \n" \ + "add %0, %1, %0 \n" \ + : "=&r" (__result) : "r" (tp)); \ + __result; }) -- 2.7.4 _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
