diff options
Diffstat (limited to 'sysdeps/x86_64/dl-machine.h')
| -rw-r--r-- | sysdeps/x86_64/dl-machine.h | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/sysdeps/x86_64/dl-machine.h b/sysdeps/x86_64/dl-machine.h index 964a4b422b..8017c51677 100644 --- a/sysdeps/x86_64/dl-machine.h +++ b/sysdeps/x86_64/dl-machine.h @@ -217,13 +217,15 @@ _dl_runtime_profile:\n\ " CFI_STARTPROC "\n\ _dl_runtime_resolve:\n\ _dl_runtime_profile:\n\ - pushq %rax # Preserve registers otherwise clobbered.\n\ - pushq %rcx\n\ - pushq %rdx\n\ - pushq %rsi\n\ - pushq %rdi\n\ - pushq %r8\n\ - pushq %r9\n\ + subq $56,%rsp\n\ + " CFI_ADJUST_CFA_OFFSET(72)" # Incorporate PLT\n\ + movq %rax,(%rsp) # Preserve registers otherwise clobbered.\n\ + movq %rcx,8(%rsp)\n\ + movq %rdx,16(%rsp)\n\ + movq %rsi,24(%rsp)\n\ + movq %rdi,32(%rsp)\n\ + movq %r8,40(%rsp)\n\ + movq %r9,48(%rsp)\n\ movq 64(%rsp), %rsi # Copy args pushed by PLT in register.\n\ movq %rsi,%r11 # Multiply by 24\n\ addq %r11,%rsi\n\ @@ -232,14 +234,15 @@ _dl_runtime_profile:\n\ movq 56(%rsp), %rdi # %rdi: link_map, %rsi: reloc_offset\n\ call fixup # Call resolver.\n\ movq %rax, %r11 # Save return value\n\ - popq %r9 # Get register content back.\n\ - popq %r8\n\ - popq %rdi\n\ - popq %rsi\n\ - popq %rdx\n\ - popq %rcx\n\ - popq %rax\n\ - addq $16,%rsp # Adjust stack\n\ + movq 48(%rsp),%r9 # Get register content back.\n\ + movq 40(%rsp),%r8\n\ + movq 32(%rsp),%rdi\n\ + movq 24(%rsp),%rsi\n\ + movq 16(%rsp),%rdx\n\ + movq 8(%rsp),%rcx\n\ + movq (%rsp),%rax\n\ + addq $72,%rsp # Adjust stack\n\ + " CFI_ADJUST_CFA_OFFSET(-72)"\n\ jmp *%r11 # Jump to function address.\n\ " CFI_ENDPROC "\n\ .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\ |