commit da3ee189b71515c15fa742f4f6675d7560fbe2e4
author Pushkar Joshi <pushkarj@codeaurora.org> Fri Sep 07 14:22:58 2012 -0700
committer Pratik Patel <pratikp@codeaurora.org> Wed Jan 30 16:09:26 2013 -0800
tree 18241487721834b418897b2f73586e1b2b1ad10e
parent f32402f621c04cd1a8584487fb90640cad6af971

tracing: ftrace events for user faults and undefined instructions

New ftrace events (user_fault and undef_instr) for data, prefetch
or undefined instruction aborts. The new ftrace events are under
events/exception.

Change-Id: Iea328b71a1f623861cac9b45d858c3bbe09e1b82
Signed-off-by: Pushkar Joshi <pushkarj@codeaurora.org>

arch/arm/mm/fault.c

diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index ed03b33..19ef5a6 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -37,6 +37,9 @@
 
 #include "fault.h"
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/exception.h>
+
 #ifdef CONFIG_MMU
 
 #ifdef CONFIG_KPROBES
@@ -173,6 +176,8 @@
 {
 	struct siginfo si;
 
+	trace_user_fault(tsk, addr, fsr);
+
 #ifdef CONFIG_DEBUG_USER
 	if (((user_debug & UDBG_SEGV) && (sig == SIGSEGV)) ||
 	    ((user_debug & UDBG_BUS)  && (sig == SIGBUS))) {