On Sun, 2010-03-14 at 16:56 +0000, Steven Rostedt wrote:

On Sat, 2010-03-13 at 12:19 +0530, Rabin Vincent wrote:

quoted

With a new enough GCC, ARM function tracing can be supported without the
need for frame pointers.  This is essential for Thumb-2 support, since
frame pointers aren't available then.

Signed-off-by: Rabin Vincent <redacted>

quoted

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 13e13d4..e10519f 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig

@@ -124,7 +124,7 @@ if FTRACE
 config FUNCTION_TRACER
      bool "Kernel Function Tracer"
      depends on HAVE_FUNCTION_TRACER
-     select FRAME_POINTER
+     select FRAME_POINTER if (!ARM_UNWIND)

I'm fine with this if the ARM maintainers are.

Acked-by: Steven Rostedt <rostedt@goodmis.org>

I think we did this already in other places, so:

Acked-by: Catalin Marinas <catalin.marinas@arm.com>