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| author | Alexander van Heukelum <heukelum@mailshack.com> | 2008-07-22 18:14:16 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-24 12:33:38 +0200 |
| commit | e0a5a5d9b006fd441e61685a051fa85d52fb172c (patch) | |
| tree | f0560b252e099f3c5917b8a99f0cf4ba9bc29916 /arch/x86/kernel/entry_64.S | |
| parent | 338b9bb3adac0d2c5a1e180491d9b001d624c402 (diff) | |
| download | lwn-e0a5a5d9b006fd441e61685a051fa85d52fb172c.tar.gz lwn-e0a5a5d9b006fd441e61685a051fa85d52fb172c.zip | |
x86, 64-bit, dwarf2: push pushes 8 bytes and popf pops 8
The CFI_ADJUST_CFA_OFFSET dwarf2 annotation of a push/popf
pair in ret_from_fork wrongly used a value of 4. It should
have been 8. Fix that.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: heukelum@fastmail.fm
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/entry_64.S')
| -rw-r--r-- | arch/x86/kernel/entry_64.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 89434d439605..cf3a0b2d0059 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -275,9 +275,9 @@ ENTRY(native_usergs_sysret64) ENTRY(ret_from_fork) CFI_DEFAULT_STACK push kernel_eflags(%rip) - CFI_ADJUST_CFA_OFFSET 4 + CFI_ADJUST_CFA_OFFSET 8 popf # reset kernel eflags - CFI_ADJUST_CFA_OFFSET -4 + CFI_ADJUST_CFA_OFFSET -8 call schedule_tail GET_THREAD_INFO(%rcx) testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT),TI_flags(%rcx) |