diff options
Diffstat (limited to 'sysdeps/arm/arm-mcount.S')
| -rw-r--r-- | sysdeps/arm/arm-mcount.S | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/sysdeps/arm/arm-mcount.S b/sysdeps/arm/arm-mcount.S deleted file mode 100644 index df2601b4a6..0000000000 --- a/sysdeps/arm/arm-mcount.S +++ /dev/null @@ -1,128 +0,0 @@ -/* Implementation of profiling support. ARM EABI version. - Copyright (C) 2008-2017 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/>. */ - -/* Don't call mcount when calling mcount... */ -#undef PROF - -#include <sysdep.h> - -#undef mcount - -#ifdef __thumb2__ - .thumb -#endif - .syntax unified - - -/* Use an assembly stub with a special ABI. The calling lr has been - pushed to the stack (which will be misaligned). We should preserve - all registers except ip and pop a word off the stack. - - NOTE: This assumes mcount_internal does not clobber any non-core - (coprocessor) registers. Currently this is true, but may require - additional attention in the future. - - The calling sequence looks something like: -func: - push {lr} - bl __gnu_mcount_nc - <function body> -*/ - -ENTRY(__gnu_mcount_nc) - push {r0, r1, r2, r3, lr} - cfi_adjust_cfa_offset (20) - cfi_rel_offset (r0, 0) - cfi_rel_offset (r1, 4) - cfi_rel_offset (r2, 8) - cfi_rel_offset (r3, 12) - cfi_rel_offset (lr, 16) - bic r1, lr, #1 - ldr r0, [sp, #20] - bl __mcount_internal - pop {r0, r1, r2, r3, ip, lr} - cfi_adjust_cfa_offset (-24) - cfi_restore (r0) - cfi_restore (r1) - cfi_restore (r2) - cfi_restore (r3) - cfi_register (lr, ip) - bx ip -END(__gnu_mcount_nc) - - -#include <gcc-compat.h> -#include <shlib-compat.h> - -/* The new __gnu_mcount_nc entry point was introduced in 4.4, so the - static library needs the old one only to support older compilers. - Even in a configuration that only cares about newer compilers, the - shared library might need it only for strict ABI compatibility. */ - -#if GCC_COMPAT (4, 3) || SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) - -/* Provide old mcount for backwards compatibility. This requires - code be compiled with APCS frame pointers. */ - -ENTRY(__mcount_arm_compat) - push {r0, r1, r2, r3, fp, lr} - cfi_adjust_cfa_offset (24) - cfi_rel_offset (r0, 0) - cfi_rel_offset (r1, 4) - cfi_rel_offset (r2, 8) - cfi_rel_offset (r3, 12) - cfi_rel_offset (fp, 16) - cfi_rel_offset (lr, 20) - movs r0, fp - ittt ne - ldrne r0, [r0, #-4] - movsne r1, lr - blne __mcount_internal -# if defined (__ARM_ARCH_4T__) && defined (__THUMB_INTERWORK__) - pop {r0, r1, r2, r3, fp, lr} - cfi_adjust_cfa_offset (-24) - cfi_restore (r0) - cfi_restore (r1) - cfi_restore (r2) - cfi_restore (r3) - cfi_restore (fp) - cfi_restore (lr) - bx lr -# else - pop {r0, r1, r2, r3, fp, pc} -# endif -END(__mcount_arm_compat) - -#endif - -#if GCC_COMPAT (4, 3) - -strong_alias (__mcount_arm_compat, _mcount) - -/* The canonical name for the function is `_mcount' in both C and asm, - but some old asm code might assume it's `mcount'. */ -weak_alias (_mcount, mcount) - -#elif SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) - -compat_symbol (libc, __mcount_arm_compat, _mcount, GLIBC_2_0) - -strong_alias (__mcount_arm_compat, __mcount_arm_compat_1) -compat_symbol (libc, __mcount_arm_compat_1, mcount, GLIBC_2_0) - -#endif |