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| author | Roland McGrath <roland@redhat.com> | 2008-01-30 13:30:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:30:44 +0100 |
| commit | cadd516422d9382313144aa58f9e46ee7a2c0a28 (patch) | |
| tree | 84cb8aa63f068bd4609723b43cdfd41ec74c9665 /arch/x86/vdso/vdso32/syscall.S | |
| parent | x86 vDSO: makefile cleanup (diff) | |
| download | linux-cadd516422d9382313144aa58f9e46ee7a2c0a28.tar.xz linux-cadd516422d9382313144aa58f9e46ee7a2c0a28.zip | |
x86 vDSO: canonicalize sysenter .eh_frame
Some assembler versions automagically optimize .eh_frame contents,
changing their size. The CFI in sysenter.S was not using optimal
formatting, so it would be changed by newer/smarter assemblers.
This ran afoul of the wired constant for padding out the other vDSO
images to match its size. This changes the original hand-coded
source to use the optimal format encoding for its operations. That
leaves nothing more for a fancy assembler to do, so the sizes will
match the wired-in expected size regardless of the assembler version.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/vdso/vdso32/syscall.S')
| -rw-r--r-- | arch/x86/vdso/vdso32/syscall.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/vdso/vdso32/syscall.S b/arch/x86/vdso/vdso32/syscall.S index fe88d34f822f..5415b5613d55 100644 --- a/arch/x86/vdso/vdso32/syscall.S +++ b/arch/x86/vdso/vdso32/syscall.S @@ -71,7 +71,7 @@ __kernel_vsyscall: /* * Pad out the segment to match the size of the sysenter.S version. */ -VDSO32_vsyscall_eh_frame_size = 0x44 +VDSO32_vsyscall_eh_frame_size = 0x40 .section .data,"aw",@progbits .space VDSO32_vsyscall_eh_frame_size-(.LENDFDE1-.LSTARTFRAME), 0 .previous |