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9f0d7b6df9
consider_profiling always to zero. Don't count of compiler to remove unreached if block. * sysdeps/x86_64/dl-trampoline.S [PROF] (_dl_runtime_profile): Don't compile. * sysdeps/i386/dl-trampoline.S [PROF] (_dl_runtime_profile): Likewise. * sysdeps/ia64/dl-trampoline.S [PROF] (_dl_runtime_profile): Likewise. * sysdeps/s390/s390-64/dl-trampoline.S [PROF] (_dl_runtime_profile): Likewise. * sysdeps/s390/s390-32/dl-trampoline.S [PROF] (_dl_runtime_profile): Likewise. * sysdeps/powerpc/powerpc64/dl-trampoline.S [PROF] (_dl_profile_resolve): Likewise. * sysdeps/powerpc/powerpc32/dl-trampoline.S [PROF] (_dl_profile_resolve): Likewise. * gmon/Makefile: Add rules to build and run tst-profile-static. * gmon/tst-profile-static.c: New file. * Makeconfig (+link-static): Allow passing program-specific flags.
185 lines
4.5 KiB
ArmAsm
185 lines
4.5 KiB
ArmAsm
/* PLT trampolines. i386 version.
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Copyright (C) 2004, 2005 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., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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.text
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.globl _dl_runtime_resolve
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.type _dl_runtime_resolve, @function
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cfi_startproc
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.align 16
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_dl_runtime_resolve:
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cfi_adjust_cfa_offset (8)
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pushl %eax # Preserve registers otherwise clobbered.
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cfi_adjust_cfa_offset (4)
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pushl %ecx
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cfi_adjust_cfa_offset (4)
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pushl %edx
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cfi_adjust_cfa_offset (4)
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movl 16(%esp), %edx # Copy args pushed by PLT in register. Note
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movl 12(%esp), %eax # that `fixup' takes its parameters in regs.
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call _dl_fixup # Call resolver.
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popl %edx # Get register content back.
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cfi_adjust_cfa_offset (-4)
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popl %ecx
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cfi_adjust_cfa_offset (-4)
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xchgl %eax, (%esp) # Get %eax contents end store function address.
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ret $8 # Jump to function address.
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cfi_endproc
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.size _dl_runtime_resolve, .-_dl_runtime_resolve
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#ifndef PROF
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.globl _dl_runtime_profile
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.type _dl_runtime_profile, @function
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cfi_startproc
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.align 16
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_dl_runtime_profile:
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cfi_adjust_cfa_offset (8)
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pushl %esp
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cfi_adjust_cfa_offset (4)
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addl $8, (%esp) # Account for the pushed PLT data
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pushl %ebp
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cfi_adjust_cfa_offset (4)
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pushl %eax # Preserve registers otherwise clobbered.
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cfi_adjust_cfa_offset (4)
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pushl %ecx
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cfi_adjust_cfa_offset (4)
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pushl %edx
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cfi_adjust_cfa_offset (4)
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movl %esp, %ecx
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subl $8, %esp
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cfi_adjust_cfa_offset (8)
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movl $-1, 4(%esp)
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leal 4(%esp), %edx
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movl %edx, (%esp)
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pushl %ecx # Address of the register structure
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cfi_adjust_cfa_offset (4)
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movl 40(%esp), %ecx # Load return address
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movl 36(%esp), %edx # Copy args pushed by PLT in register. Note
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movl 32(%esp), %eax # that `fixup' takes its parameters in regs.
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call _dl_profile_fixup # Call resolver.
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cfi_adjust_cfa_offset (-8)
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movl (%esp), %edx
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testl %edx, %edx
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jns 1f
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popl %edx
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cfi_adjust_cfa_offset (-4)
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popl %edx # Get register content back.
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cfi_adjust_cfa_offset (-4)
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popl %ecx
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cfi_adjust_cfa_offset (-4)
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xchgl %eax, (%esp) # Get %eax contents end store function address.
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ret $16 # Jump to function address.
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/*
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+32 return address
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+28 PLT1
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+24 PLT2
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+20 %esp
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+16 %ebp
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+12 %eax
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+8 %ecx
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+4 %edx
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%esp free
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*/
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cfi_adjust_cfa_offset (12)
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1: movl %ebx, (%esp)
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cfi_rel_offset (3, 0)
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movl %edx, %ebx # This is the frame buffer size
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pushl %edi
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cfi_adjust_cfa_offset (4)
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cfi_rel_offset (7, 0)
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pushl %esi
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cfi_adjust_cfa_offset (4)
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cfi_rel_offset (6, 0)
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leal 44(%esp), %esi
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movl %ebx, %ecx
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movl %esp, %edi
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subl %ebx, %edi
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andl $0xfffffff0, %edi # Align stack
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movl %esp, %ebx
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cfi_def_cfa_register (3)
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movl %edi, %esp
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shrl $2, %ecx
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rep
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movsl
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movl (%edi), %esi
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cfi_restore (6)
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movl 4(%edi), %edi
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cfi_restore (7)
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/*
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%ebx+40 return address
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%ebx+36 PLT1
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%ebx+32 PLT2
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%ebx+28 %esp
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%ebx+24 %ebp
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%ebx+20 %eax
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%ebx+16 %ecx
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%ebx+12 %edx
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%ebx+8 %ebx
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%ebx+4 free
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%ebx free
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%esp copied stack frame
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*/
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movl %eax, (%ebx)
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movl 12(%ebx), %edx
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movl 16(%ebx), %ecx
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movl 20(%ebx), %eax
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call *(%ebx)
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movl %ebx, %esp
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cfi_def_cfa_register (4)
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movl 8(%esp), %ebx
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cfi_restore (3)
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/*
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+40 return address
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+36 PLT1
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+32 PLT2
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+28 %esp
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+24 %ebp
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+20 %eax
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+16 %ecx
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+12 %edx
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+8 free
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+4 free
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%esp free
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*/
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subl $20, %esp
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cfi_adjust_cfa_offset (20)
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movl %eax, (%esp)
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movl %edx, 4(%esp)
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fstpt 8(%esp)
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fstpt 20(%esp)
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pushl %esp
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cfi_adjust_cfa_offset (4)
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leal 36(%esp), %ecx
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movl 56(%esp), %eax
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movl 60(%esp), %edx
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call _dl_call_pltexit
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movl (%esp), %eax
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movl 4(%esp), %edx
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fldt 20(%esp)
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fldt 8(%esp)
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addl $60, %esp
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cfi_adjust_cfa_offset (-60)
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ret
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cfi_endproc
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.size _dl_runtime_profile, .-_dl_runtime_profile
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#endif
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