mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 19:00:09 +00:00
a7e915610a
2006-01-03 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/generic/sysdep.h (cfi_same_value): Define macro. * sysdeps/powerpc/powerpc32/dl-trampoline.S (_dl_runtime_resolve, _dl_profile_resolve): Add CFI directives for stack and LR save. Save LR in LRSAVE of previous frame per ABI. * sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S: Add CFI directives for LR save. * sysdeps/powerpc/powerpc32/lshift.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S (__makecontext, __novec_makecontext): Likewise. * sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Add CFI directive for LR save to register. * sysdeps/powerpc/powerpc32/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_rint.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_rintf.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_round.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_roundf.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/setjmp-common.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Add CFI directive for stack. * sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: Likewise. * sysdeps/powerpc/powerpc32/ppc-mcount.S: Add CFI directives for stack and LR save. * sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_lround.S: Likewise. Don't use negative stack addressing. * sysdeps/powerpc/powerpc64/dl-trampoline.S (_dl_runtime_resolve, _dl_profile_resolve): Add CFI directives for stack and LR save. * sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Add CFI directives for stack. * sysdeps/powerpc/powerpc64/ppc-mcount.S (_mcount): Add CFI directives for stack and LR save. * sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S (__brk): Add CFI directives for stack. * sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone): Add CFI directives for stack. * sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S (__getcontext, __novec_getcontext): Add CFI directives for stack and LR save. * sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S (__makecontext): Add CFI directives for stack and LR save. * sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S (__setcontext, __novec_setcontext): Add CFI directives for stack and LR save. * sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S (__swapcontext, __novec_swapcontext): Add CFI directives for stack and LR save.
82 lines
2.2 KiB
ArmAsm
82 lines
2.2 KiB
ArmAsm
/* PowerPC-specific implementation of profiling support.
|
|
Copyright (C) 1997, 1999, 2005, 2006 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, write to the Free
|
|
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
|
|
02110-1301 USA. */
|
|
|
|
/* 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)
|
|
stwu r1,-48(r1)
|
|
cfi_adjust_cfa_offset (48)
|
|
/* 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
|
|
lwz r3, 52(r1)
|
|
mfcr r5
|
|
stw r7, 28(r1)
|
|
stw r8, 32(r1)
|
|
stw r9, 36(r1)
|
|
stw r10,40(r1)
|
|
stw r4, 44(r1)
|
|
cfi_offset (lr, -4)
|
|
stw r5, 8(r1)
|
|
bl __mcount_internal@local
|
|
nop
|
|
/* 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, 52(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. */
|
|
addi r1,r1,48
|
|
bctr
|
|
END(_mcount)
|