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i386: add TRACE_IRQS_OFF for the exception 3 (int3)
author
Alexander van Heukelum
<heukelum@fastmail.fm>
Tue, 9 Sep 2008 19:56:17 +0000
(21:56 +0200)
committer
Ingo Molnar
<mingo@elte.hu>
Mon, 13 Oct 2008 08:20:52 +0000
(10:20 +0200)
At this point interrupts are off, so let's inform the tracing
code of that fact before calling into C.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/entry_32.S
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diff --git
a/arch/x86/kernel/entry_32.S
b/arch/x86/kernel/entry_32.S
index 2abdc9a9f7bc198c5cd3cd76b6aca19a9a917fa1..b21fbfaffe391a974d10d7417a9f00c99ab05228 100644
(file)
--- a/
arch/x86/kernel/entry_32.S
+++ b/
arch/x86/kernel/entry_32.S
@@
-921,6
+921,7
@@
KPROBE_ENTRY(int3)
pushl $-1 # mark this as an int
CFI_ADJUST_CFA_OFFSET 4
SAVE_ALL
+ TRACE_IRQS_OFF
xorl %edx,%edx # zero error code
movl %esp,%eax # pt_regs pointer
call do_int3