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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.
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Copyright (C) 1997, 1999, 2005, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
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02110-1301 USA. */
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/* This would be bad. */
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#ifdef PROF
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#undef PROF
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#endif
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#include <sysdep.h>
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/* We do profiling as described in the SYSV ELF ABI, except that glibc
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_mcount manages its own counters. The caller has put the address the
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caller will return to in the usual place on the stack, 4(r1). _mcount
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is responsible for ensuring that when it returns no argument-passing
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registers are disturbed, and that the LR is set back to (what the
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caller sees as) 4(r1).
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This is intended so that the following code can be inserted at the
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front of any routine without changing the routine:
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.data
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mflr r0
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stw r0,4(r1)
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bl _mcount
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*/
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ENTRY(_mcount)
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stwu r1,-48(r1)
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cfi_adjust_cfa_offset (48)
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/* We need to save the parameter-passing registers. */
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stw r3, 12(r1)
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stw r4, 16(r1)
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stw r5, 20(r1)
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stw r6, 24(r1)
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mflr r4
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lwz r3, 52(r1)
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mfcr r5
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stw r7, 28(r1)
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stw r8, 32(r1)
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stw r9, 36(r1)
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stw r10,40(r1)
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stw r4, 44(r1)
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cfi_offset (lr, -4)
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stw r5, 8(r1)
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bl __mcount_internal@local
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nop
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/* Restore the registers... */
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lwz r6, 8(r1)
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lwz r0, 44(r1)
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lwz r3, 12(r1)
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mtctr r0
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lwz r4, 16(r1)
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mtcrf 0xff,r6
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lwz r5, 20(r1)
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lwz r6, 24(r1)
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lwz r0, 52(r1)
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lwz r7, 28(r1)
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lwz r8, 32(r1)
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mtlr r0
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lwz r9, 36(r1)
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lwz r10,40(r1)
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/* ...unwind the stack frame, and return to your usual programming. */
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addi r1,r1,48
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bctr
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END(_mcount)
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