[PATCH] ARM: 2761/1: OProfile: Add call graphing support for arm
Patch from Richard Purdie
Add functions to generate backtraces of both kernel and user processes
which allows oprofile's call graphing functionality to be used on arm.
This requires unstripped binaries/libs which use a frame pointer.
Signed-off-by: Richard Purdie
Signed-off-by: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/oprofile/init.c b/arch/arm/oprofile/init.c
index cce3d30..d315a3a 100644
--- a/arch/arm/oprofile/init.c
+++ b/arch/arm/oprofile/init.c
@@ -20,6 +20,8 @@
ret = pmu_init(ops, &op_xscale_spec);
#endif
+ ops->backtrace = arm_backtrace;
+
return ret;
}