linux-kernel - [tip:perf/core] stack_trace: Add weak save_stack_trace

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Date:	Tue, 5 Jul 2011 12:55:04 GMT
From:	tip-bot for Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	a.p.zijlstra@...llo.nl, namhyung@...il.com,
	masami.hiramatsu.pt@...achi.com, fweisbec@...il.com,
	rostedt@...dmis.org, tglx@...utronix.de
Subject: [tip:perf/core] stack_trace: Add weak save_stack_trace_regs()

Commit-ID:  c624d33f61cd05241e85b906311f0b712fdb0f32
Gitweb:     http://git.kernel.org/tip/c624d33f61cd05241e85b906311f0b712fdb0f32
Author:     Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
AuthorDate: Wed, 8 Jun 2011 16:09:27 +0900
Committer:  Steven Rostedt <rostedt@...dmis.org>
CommitDate: Tue, 14 Jun 2011 22:48:52 -0400

stack_trace: Add weak save_stack_trace_regs()

Add weak symbol of save_stack_trace_regs() as same as
save_stack_trace_tsk() since that is not implemented
except x86 yet.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: yrl.pp-manager.tt@...achi.com
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Namhyung Kim <namhyung@...il.com>
Link: http://lkml.kernel.org/r/20110608070927.17777.37895.stgit@fedora15
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
---
 kernel/stacktrace.c |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index eb212f8..d20c698 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -26,12 +26,18 @@ void print_stack_trace(struct stack_trace *trace, int spaces)
 EXPORT_SYMBOL_GPL(print_stack_trace);
 
 /*
- * Architectures that do not implement save_stack_trace_tsk get this
- * weak alias and a once-per-bootup warning (whenever this facility
- * is utilized - for example by procfs):
+ * Architectures that do not implement save_stack_trace_tsk or
+ * save_stack_trace_regs get this weak alias and a once-per-bootup warning
+ * (whenever this facility is utilized - for example by procfs):
  */
 __weak void
 save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
 	WARN_ONCE(1, KERN_INFO "save_stack_trace_tsk() not implemented yet.\n");
 }
+
+__weak void
+save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
+{
+	WARN_ONCE(1, KERN_INFO "save_stack_trace_regs() not implemented yet.\n");
+}
--
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