[ARM] Add stacktrace support and make oprofile use it
Add support for stacktrace. Use the new stacktrace code with
oprofile instead of it's version; there's no point having
multiple versions of stacktracing in the kernel.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/kernel/stacktrace.h b/arch/arm/kernel/stacktrace.h
new file mode 100644
index 0000000..e9fd20c
--- /dev/null
+++ b/arch/arm/kernel/stacktrace.h
@@ -0,0 +1,9 @@
+struct stackframe {
+ unsigned long fp;
+ unsigned long sp;
+ unsigned long lr;
+ unsigned long pc;
+};
+
+int walk_stackframe(unsigned long fp, unsigned long low, unsigned long high,
+ int (*fn)(struct stackframe *, void *), void *data);