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| author |   Andi Kleen <ak@suse.de> | 2006-10-05 18:47:22 +0200 |
|---|---|---|
| committer |   Andi Kleen <andi@basil.nowhere.org> | 2006-10-05 18:47:22 +0200 |
| commit | 7d0b0e8ddbdda58a852ccff010c0339a38552cc7 (patch) | |
| tree | b3bbe80bbcc38f5ee07b6b235f4bf1fd210e5efe | |
| parent | [PATCH] x86-64: Fix FPU corruption (diff) | |
| download | linux-dev-7d0b0e8ddbdda58a852ccff010c0339a38552cc7.tar.xz linux-dev-7d0b0e8ddbdda58a852ccff010c0339a38552cc7.zip | |
[PATCH] x86-64: Annotate interrupt frame backlink in interrupt handlers
Add correct CFI annotation to the backlink on top of the interrupt stack.
Signed-off-by: Andi Kleen <ak@suse.de>
| -rw-r--r-- | arch/x86_64/kernel/entry.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index ab9b2c4726f2..38a7b2d528e2 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -535,6 +535,8 @@ END(stub_rt_sigreturn) 1: incl %gs:pda_irqcount cmoveq %gs:pda_irqstackptr,%rsp push %rbp # backlink for old unwinder + CFI_ADJUST_CFA_OFFSET 8 + CFI_REL_OFFSET rbp,0 /* * We entered an interrupt context - irqs are off: */ @@ -1174,6 +1176,7 @@ ENTRY(call_softirq) incl %gs:pda_irqcount cmove %gs:pda_irqstackptr,%rsp push %rbp # backlink for old unwinder + CFI_ADJUST_CFA_OFFSET 8 call __do_softirq leaveq CFI_DEF_CFA_REGISTER rsp |