diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/ppc-mcount.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/ppc-mcount.S | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/sysdeps/powerpc/powerpc32/ppc-mcount.S b/sysdeps/powerpc/powerpc32/ppc-mcount.S deleted file mode 100644 index 8a6b205c37..0000000000 --- a/sysdeps/powerpc/powerpc32/ppc-mcount.S +++ /dev/null @@ -1,104 +0,0 @@ -/* PowerPC-specific implementation of profiling support. - Copyright (C) 1997-2017 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/>. */ - -/* This would be bad. */ -#ifdef PROF -#undef PROF -#endif - -#include <sysdep.h> - -/* We do profiling as described in the SYSV ELF ABI, except that glibc - _mcount manages its own counters. The caller has put the address the - caller will return to in the usual place on the stack, 4(r1). _mcount - is responsible for ensuring that when it returns no argument-passing - registers are disturbed, and that the LR is set back to (what the - caller sees as) 4(r1). - - This is intended so that the following code can be inserted at the - front of any routine without changing the routine: - - .data - mflr r0 - stw r0,4(r1) - bl _mcount -*/ - -ENTRY(_mcount) -#if defined PIC && !defined SHARED -# define CALLER_LR_OFFSET 68 - stwu r1,-64(r1) - cfi_adjust_cfa_offset (64) - stw r30, 48(r1) - cfi_rel_offset (r30, 48) -#else -# define CALLER_LR_OFFSET 52 - stwu r1,-48(r1) - cfi_adjust_cfa_offset (48) -#endif -/* We need to save the parameter-passing registers. */ - stw r3, 12(r1) - stw r4, 16(r1) - stw r5, 20(r1) - stw r6, 24(r1) - mflr r4 -#if defined PIC && !defined SHARED - bcl 20,31,0f -0: - mflr r30 - addis r30, r30, _GLOBAL_OFFSET_TABLE_-0b@ha - addi r30, r30, _GLOBAL_OFFSET_TABLE_-0b@l -#endif - lwz r3, CALLER_LR_OFFSET(r1) - mfcr r5 - stw r7, 28(r1) - stw r8, 32(r1) - stw r9, 36(r1) - stw r10,40(r1) - stw r4, 44(r1) - cfi_rel_offset (lr, 44) - stw r5, 8(r1) -#ifndef SHARED - bl JUMPTARGET(__mcount_internal) -#else - bl __mcount_internal@local -#endif - /* Restore the registers... */ - lwz r6, 8(r1) - lwz r0, 44(r1) - lwz r3, 12(r1) - mtctr r0 - lwz r4, 16(r1) - mtcrf 0xff,r6 - lwz r5, 20(r1) - lwz r6, 24(r1) - lwz r0, CALLER_LR_OFFSET(r1) - lwz r7, 28(r1) - lwz r8, 32(r1) - mtlr r0 - lwz r9, 36(r1) - lwz r10,40(r1) - /* ...unwind the stack frame, and return to your usual programming. */ -#if defined PIC && !defined SHARED - lwz r30, 48(r1) - addi r1,r1,64 -#else - addi r1,r1,48 -#endif - bctr -END(_mcount) |