diff options
Diffstat (limited to 'sysdeps/i386/dl-trampoline.S')
| -rw-r--r-- | sysdeps/i386/dl-trampoline.S | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/sysdeps/i386/dl-trampoline.S b/sysdeps/i386/dl-trampoline.S deleted file mode 100644 index 80dd300e86..0000000000 --- a/sysdeps/i386/dl-trampoline.S +++ /dev/null @@ -1,182 +0,0 @@ -/* PLT trampolines. i386 version. - Copyright (C) 2004, 2005 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., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> - - .text - .globl _dl_runtime_resolve - .type _dl_runtime_resolve, @function - cfi_startproc - .align 16 -_dl_runtime_resolve: - cfi_adjust_cfa_offset (8) - pushl %eax # Preserve registers otherwise clobbered. - cfi_adjust_cfa_offset (4) - pushl %ecx - cfi_adjust_cfa_offset (4) - pushl %edx - cfi_adjust_cfa_offset (4) - movl 16(%esp), %edx # Copy args pushed by PLT in register. Note - movl 12(%esp), %eax # that `fixup' takes its parameters in regs. - call _dl_fixup # Call resolver. - popl %edx # Get register content back. - cfi_adjust_cfa_offset (-4) - popl %ecx - cfi_adjust_cfa_offset (-4) - xchgl %eax, (%esp) # Get %eax contents end store function address. - ret $8 # Jump to function address. - cfi_endproc - .size _dl_runtime_resolve, .-_dl_runtime_resolve - - - .globl _dl_runtime_profile - .type _dl_runtime_profile, @function - cfi_startproc - .align 16 -_dl_runtime_profile: - cfi_adjust_cfa_offset (8) - pushl %esp - cfi_adjust_cfa_offset (4) - addl $8, (%esp) # Account for the pushed PLT data - pushl %ebp - cfi_adjust_cfa_offset (4) - pushl %eax # Preserve registers otherwise clobbered. - cfi_adjust_cfa_offset (4) - pushl %ecx - cfi_adjust_cfa_offset (4) - pushl %edx - cfi_adjust_cfa_offset (4) - movl %esp, %ecx - subl $8, %esp - cfi_adjust_cfa_offset (8) - movl $-1, 4(%esp) - leal 4(%esp), %edx - movl %edx, (%esp) - pushl %ecx # Address of the register structure - cfi_adjust_cfa_offset (4) - movl 40(%esp), %ecx # Load return address - movl 36(%esp), %edx # Copy args pushed by PLT in register. Note - movl 32(%esp), %eax # that `fixup' takes its parameters in regs. - call _dl_profile_fixup # Call resolver. - cfi_adjust_cfa_offset (-8) - movl (%esp), %edx - testl %edx, %edx - jns 1f - popl %edx - cfi_adjust_cfa_offset (-4) - popl %edx # Get register content back. - cfi_adjust_cfa_offset (-4) - popl %ecx - cfi_adjust_cfa_offset (-4) - xchgl %eax, (%esp) # Get %eax contents end store function address. - ret $16 # Jump to function address. - - /* - +32 return address - +28 PLT1 - +24 PLT2 - +20 %esp - +16 %ebp - +12 %eax - +8 %ecx - +4 %edx - %esp free - */ - cfi_adjust_cfa_offset (12) -1: movl %ebx, (%esp) - cfi_rel_offset (3, 0) - movl %edx, %ebx # This is the frame buffer size - pushl %edi - cfi_adjust_cfa_offset (4) - cfi_rel_offset (7, 0) - pushl %esi - cfi_adjust_cfa_offset (4) - cfi_rel_offset (6, 0) - leal 44(%esp), %esi - movl %ebx, %ecx - movl %esp, %edi - subl %ebx, %edi - andl $0xfffffff0, %edi # Align stack - movl %esp, %ebx - cfi_def_cfa_register (3) - movl %edi, %esp - shrl $2, %ecx - rep - movsl - movl (%edi), %esi - cfi_restore (6) - movl 4(%edi), %edi - cfi_restore (7) - /* - %ebx+40 return address - %ebx+36 PLT1 - %ebx+32 PLT2 - %ebx+28 %esp - %ebx+24 %ebp - %ebx+20 %eax - %ebx+16 %ecx - %ebx+12 %edx - %ebx+8 %ebx - %ebx+4 free - %ebx free - %esp copied stack frame - */ - movl %eax, (%ebx) - movl 12(%ebx), %edx - movl 16(%ebx), %ecx - movl 20(%ebx), %eax - call *(%ebx) - movl %ebx, %esp - cfi_def_cfa_register (4) - movl 8(%esp), %ebx - cfi_restore (3) - /* - +40 return address - +36 PLT1 - +32 PLT2 - +28 %esp - +24 %ebp - +20 %eax - +16 %ecx - +12 %edx - +8 free - +4 free - %esp free - */ - subl $20, %esp - cfi_adjust_cfa_offset (20) - movl %eax, (%esp) - movl %edx, 4(%esp) - fstpt 8(%esp) - fstpt 20(%esp) - pushl %esp - cfi_adjust_cfa_offset (4) - leal 36(%esp), %ecx - movl 56(%esp), %eax - movl 60(%esp), %edx - call _dl_call_pltexit - movl (%esp), %eax - movl 4(%esp), %edx - fldt 20(%esp) - fldt 8(%esp) - addl $60, %esp - cfi_adjust_cfa_offset (-60) - ret - cfi_endproc - .size _dl_runtime_profile, .-_dl_runtime_profile |