diff options
Diffstat (limited to 'sysdeps/x86_64/dl-trampoline.S')
| -rw-r--r-- | sysdeps/x86_64/dl-trampoline.S | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S deleted file mode 100644 index c1686dae10..0000000000 --- a/sysdeps/x86_64/dl-trampoline.S +++ /dev/null @@ -1,189 +0,0 @@ -/* PLT trampolines. x86-64 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 - .align 16 - cfi_startproc -_dl_runtime_resolve: - subq $56,%rsp - cfi_adjust_cfa_offset(72) # Incorporate PLT - movq %rax,(%rsp) # Preserve registers otherwise clobbered. - movq %rcx, 8(%rsp) - movq %rdx, 16(%rsp) - movq %rsi, 24(%rsp) - movq %rdi, 32(%rsp) - movq %r8, 40(%rsp) - movq %r9, 48(%rsp) - movq 64(%rsp), %rsi # Copy args pushed by PLT in register. - movq %rsi, %r11 # Multiply by 24 - addq %r11, %rsi - addq %r11, %rsi - shlq $3, %rsi - movq 56(%rsp), %rdi # %rdi: link_map, %rsi: reloc_offset - call _dl_fixup # Call resolver. - movq %rax, %r11 # Save return value - movq 48(%rsp), %r9 # Get register content back. - movq 40(%rsp), %r8 - movq 32(%rsp), %rdi - movq 24(%rsp), %rsi - movq 16(%rsp), %rdx - movq 8(%rsp), %rcx - movq (%rsp), %rax - addq $72, %rsp # Adjust stack(PLT did 2 pushes) - cfi_adjust_cfa_offset(-72) - jmp *%r11 # Jump to function address. - cfi_endproc - .size _dl_runtime_resolve, .-_dl_runtime_resolve - - -#ifndef PROF - .globl _dl_runtime_profile - .type _dl_runtime_profile, @function - .align 16 - cfi_startproc -_dl_runtime_profile: - subq $80, %rsp - cfi_adjust_cfa_offset(96) # Incorporate PLT - movq %rax, (%rsp) # Preserve registers otherwise clobbered. - movq %rdx, 8(%rsp) - movq %r8, 16(%rsp) - movq %r9, 24(%rsp) - movq %rcx, 32(%rsp) - movq %rsi, 40(%rsp) - movq %rdi, 48(%rsp) - movq %rbp, 56(%rsp) # Information for auditors. - leaq 96(%rsp), %rax - movq %rax, 64(%rsp) - leaq 8(%rsp), %rcx - movq 96(%rsp), %rdx # Load return address if needed - movq 88(%rsp), %rsi # Copy args pushed by PLT in register. - movq %rsi,%r11 # Multiply by 24 - addq %r11,%rsi - addq %r11,%rsi - shlq $3, %rsi - movq 80(%rsp), %rdi # %rdi: link_map, %rsi: reloc_offset - leaq 72(%rsp), %r8 - call _dl_profile_fixup # Call resolver. - movq %rax, %r11 # Save return value - movq 8(%rsp), %rdx # Get back register content. - movq 16(%rsp), %r8 - movq 24(%rsp), %r9 - movq (%rsp),%rax - movq 72(%rsp), %r10 - testq %r10, %r10 - jns 1f - movq 32(%rsp), %rcx - movq 40(%rsp), %rsi - movq 48(%rsp), %rdi - addq $96,%rsp # Adjust stack - cfi_adjust_cfa_offset (-96) - jmp *%r11 # Jump to function address. - - /* - +96 return address - +88 PLT2 - +80 PLT1 - +72 free - +64 %rsp - +56 %rbp - +48 %rdi - +40 %rsi - +32 %rcx - +24 %r9 - +16 %r8 - +8 %rdx - %esp %rax - */ - cfi_adjust_cfa_offset (96) -1: movq %rbx, 72(%rsp) - cfi_rel_offset (1, 72) - leaq 104(%rsp), %rsi - movq %rsp, %rbx - cfi_def_cfa_register (1) - subq %r10, %rsp - movq %rsp, %rdi - movq %r10, %rcx - shrq $3, %rcx - rep - movsq - andq $0xfffffffffffffff0, %rsp - movq 32(%rbx), %rcx - movq 40(%rbx), %rsi - movq 48(%rbx), %rdi - call *%r11 - movq %rbx, %rsp - cfi_def_cfa_register (7) - subq $72, %rsp - cfi_adjust_cfa_offset (72) - movq %rsp, %rcx - movq %rax, (%rcx) - movq %rdx, 8(%rcx) - /* Even though the stack is correctly aligned to allow using movaps - we use movups. Some callers might provide an incorrectly aligned - stack and we do not want to have it blow up here. */ - movups %xmm0, 16(%rcx) - movups %xmm1, 32(%rcx) - fstpt 48(%rcx) - fstpt 64(%rcx) - /* - +168 return address - +160 PLT2 - +152 PLT1 - +144 free - +136 %rsp - +128 %rbp - +120 %rdi - +112 %rsi - +104 %rcx - +96 %r9 - +88 %r8 - +80 %rdx - +64 %st1 result - +48 %st result - +32 %xmm1 result - +16 %xmm0 result - +8 %rdx result - %esp %rax result - */ - leaq 80(%rsp), %rdx - movq 144(%rsp), %rbx - cfi_restore (1) - movq 160(%rsp), %rsi # Copy args pushed by PLT in register. - movq %rsi,%r11 # Multiply by 24 - addq %r11,%rsi - addq %r11,%rsi - shlq $3, %rsi - movq 152(%rsp), %rdi # %rdi: link_map, %rsi: reloc_offset - call _dl_call_pltexit - movq (%rsp), %rax - movq 8(%rsp), %rdx - movups 16(%rsp), %xmm0 - movups 32(%rsp), %xmm1 - fldt 64(%rsp) - fldt 48(%rsp) - addq $168, %rsp - cfi_adjust_cfa_offset (-168) - retq - cfi_endproc - .size _dl_runtime_profile, .-_dl_runtime_profile -#endif |