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| author | Ulrich Drepper <drepper@redhat.com> | 2007-08-24 02:03:29 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2007-08-24 02:03:29 +0000 |
| commit | 62e1b1f5644f5a0d913b91e7cc1bca4c6c32cf43 (patch) | |
| tree | c3c8fbfdacad68f0822ca75f0f9ad7916fe5262e | |
| parent | 0008163a30fec920ede228aea2f6e06e75e76514 (diff) | |
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* sysdeps/i386/dl-trampoline.S (_dl_runtime_resolve): Avoid
implicit atomic operation when storing function pointer.
(_dl_runtime_profile): Likewise.
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | sysdeps/i386/dl-trampoline.S | 16 |
2 files changed, 14 insertions, 8 deletions
@@ -1,3 +1,9 @@ +2007-08-23 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/i386/dl-trampoline.S (_dl_runtime_resolve): Avoid + implicit atomic operation when storing function pointer. + (_dl_runtime_profile): Likewise. + 2007-08-17 Jakub Jelinek <jakub@redhat.com> * nis/nis_table.c (nis_list): Don't fail if __follow_path returned diff --git a/sysdeps/i386/dl-trampoline.S b/sysdeps/i386/dl-trampoline.S index f991797ee9..5856a2f8a0 100644 --- a/sysdeps/i386/dl-trampoline.S +++ b/sysdeps/i386/dl-trampoline.S @@ -37,10 +37,10 @@ _dl_runtime_resolve: 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. + movl (%esp), %ecx + movl %eax, (%esp) # Store the function address. + movl 4(%esp), %eax + ret $12 # Jump to function address. cfi_endproc .size _dl_runtime_resolve, .-_dl_runtime_resolve @@ -83,10 +83,10 @@ _dl_runtime_profile: 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. + movl (%esp), %ecx + movl %eax, (%esp) # Store the function address. + movl 4(%esp), %eax + ret $20 # Jump to function address. /* +32 return address |