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authorSrikar Dronamraju <srikar@linux.vnet.ibm.com>2011-10-25 19:51:59 +0530
committerIngo Molnar <mingo@elte.hu>2011-12-06 08:20:37 +0100
commitcc3a1bf52a9d2808c7cd6e8f413b02b650b6b84b (patch)
tree59366ee428d280afa4e6384488d9407db3da72bd /arch
parent3596ff4e6b2aff8a28c69af389d5046090a53330 (diff)
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x86: Clean up and extend do_int3()
Since there is a possibility of !KPROBES int3 listeners (such as kgdb) and since DIE_TRAP is currently not being used by anybody, notify all listeners with DIE_INT3. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20111025142159.GB21225@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/traps.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index a8e3eb83466c..fa1191fb679d 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -306,15 +306,10 @@ dotraplinkage void __kprobes do_int3(struct pt_regs *regs, long error_code)
== NOTIFY_STOP)
return;
#endif /* CONFIG_KGDB_LOW_LEVEL_TRAP */
-#ifdef CONFIG_KPROBES
+
if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP)
== NOTIFY_STOP)
return;
-#else
- if (notify_die(DIE_TRAP, "int3", regs, error_code, 3, SIGTRAP)
- == NOTIFY_STOP)
- return;
-#endif
preempt_conditional_sti(regs);
do_trap(3, SIGTRAP, "int3", regs, error_code, NULL);