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Commit 7d0b0e8d authored by Andi Kleen's avatar Andi Kleen Committed by Andi Kleen
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[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: default avatarAndi Kleen <ak@suse.de>
parent 0a5ace2a
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arch/x86_64/kernel/entry.S
View file @ 7d0b0e8d
...@@ -535,6 +535,8 @@ END(stub_rt_sigreturn) ...@@ -535,6 +535,8 @@ END(stub_rt_sigreturn)
1: incl %gs:pda_irqcount 1: incl %gs:pda_irqcount
cmoveq %gs:pda_irqstackptr,%rsp cmoveq %gs:pda_irqstackptr,%rsp
push %rbp # backlink for old unwinder push %rbp # backlink for old unwinder
CFI_ADJUST_CFA_OFFSET 8
CFI_REL_OFFSET rbp,0
/* /*
* We entered an interrupt context - irqs are off: * We entered an interrupt context - irqs are off:
*/ */
...@@ -1174,6 +1176,7 @@ ENTRY(call_softirq) ...@@ -1174,6 +1176,7 @@ ENTRY(call_softirq)
incl %gs:pda_irqcount incl %gs:pda_irqcount
cmove %gs:pda_irqstackptr,%rsp cmove %gs:pda_irqstackptr,%rsp
push %rbp # backlink for old unwinder push %rbp # backlink for old unwinder
CFI_ADJUST_CFA_OFFSET 8
call __do_softirq call __do_softirq
leaveq leaveq
CFI_DEF_CFA_REGISTER rsp CFI_DEF_CFA_REGISTER rsp
......
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