gistfile1.diff

2010-05-11  Joe Damato  <[email protected]>

       * sysdeps/x86_64/dl-trampoline.S (_dl_runtime_resolve): Save and
       restore SSE registers.
---
 sysdeps/x86_64/dl-trampoline.S |   34 +++++++++++++++++++++++++++-------
 1 files changed, 27 insertions(+), 7 deletions(-)

diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S
index 5564a11..44706d9 100644
--- a/sysdeps/x86_64/dl-trampoline.S
+++ b/sysdeps/x86_64/dl-trampoline.S
@@ -27,8 +27,10 @@
       .align 16
       cfi_startproc
 _dl_runtime_resolve:
-       subq $56,%rsp
-       cfi_adjust_cfa_offset(72) # Incorporate PLT
+       pushq %rbp
+       movq %rsp, %rbp
+       subq $192,%rsp
+       cfi_adjust_cfa_offset(216) # Incorporate PLT
       movq %rax,(%rsp)        # Preserve registers otherwise clobbered.
       movq %rcx, 8(%rsp)
       movq %rdx, 16(%rsp)
@@ -36,19 +38,37 @@ _dl_runtime_resolve:
       movq %rdi, 32(%rsp)
       movq %r8, 40(%rsp)
       movq %r9, 48(%rsp)
-       movq 64(%rsp), %rsi     # Copy args pushed by PLT in register.
-       movq 56(%rsp), %rdi     # %rdi: link_map, %rsi: reloc_index
+       movdqa %xmm0, 64(%rsp)
+       movdqa %xmm1, 80(%rsp)
+       movdqa %xmm2, 96(%rsp)
+       movdqa %xmm3, 112(%rsp)
+       movdqa %xmm4, 128(%rsp)
+       movdqa %xmm5, 144(%rsp)
+       movdqa %xmm6, 160(%rsp)
+       movdqa %xmm7, 176(%rsp)
+       movq 208(%rsp), %rsi    # Copy args pushed by PLT in register.
+       movq 200(%rsp), %rdi    # %rdi: link_map, %rsi: reloc_index
       call _dl_fixup          # Call resolver.
       movq %rax, %r11         # Save return value
-       movq 48(%rsp), %r9      # Get register content back.
+       movdqa 176(%rsp), %xmm7 # Get register content back.
+       movdqa 160(%rsp), %xmm6
+       movdqa 144(%rsp), %xmm5
+       movdqa 128(%rsp), %xmm4
+       movdqa 112(%rsp), %xmm3
+       movdqa 96(%rsp), %xmm2
+       movdqa 80(%rsp), %xmm1
+       movdqa 64(%rsp), %xmm0
+       movq 48(%rsp), %r9
       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)
+       addq $192, %rsp
+       popq %rbp
+       addq $16, %rsp  # Adjust stack(PLT did 2 pushes)
+       cfi_adjust_cfa_offset(-216)
       jmp *%r11               # Jump to function address.
       cfi_endproc
       .size _dl_runtime_resolve, .-_dl_runtime_resolve
--