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x86, 64-bit, dwarf2: push pushes 8 bytes and popf pops 8

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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 <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Alexander van Heukelum 2008-07-22 18:14:16 +02:00 • committed by Ingo Molnar
commit e0a5a5d9b0
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kernel/entry_64.S
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@ -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)