linux/arch/h8300/include/asm/ftrace.h at 3e50594e8e72932ad4cfcb0b3cbdf58fc3bce416 - system/linux - HydraGit

system/linux

mirror of https://github.com/torvalds/linux synced 2024-11-05 18:23:50 +00:00

Uwe Kleine-Koenig c79a61f557 tracing: make CALLER_ADDRx overwriteable

The current definition of CALLER_ADDRx isn't suitable for all platforms.
E.g. for ARM __builtin_return_address(N) doesn't work for N > 0 and
AFAIK for powerpc there are no frame pointers needed to have a working
__builtin_return_address.  This patch allows defining the CALLER_ADDRx
macros in <asm/ftrace.h> and let these take precedence.

Because now <asm/ftrace.h> is included unconditionally in
<linux/ftrace.h> all archs that don't already had this include get an
empty one for free.

Signed-off-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>

2009-03-02 16:49:37 -05:00

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/* empty */