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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/i386/dl-trampoline.S
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/i386/dl-trampoline.S')
-rw-r--r--sysdeps/i386/dl-trampoline.S184
1 files changed, 0 insertions, 184 deletions
diff --git a/sysdeps/i386/dl-trampoline.S b/sysdeps/i386/dl-trampoline.S
deleted file mode 100644
index fd87eb711d..0000000000
--- a/sysdeps/i386/dl-trampoline.S
+++ /dev/null
@@ -1,184 +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
-
-
-#ifndef PROF
- .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
-#endif