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From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
To: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Namhyung Kim <namhyung@gmail.com>,
	yrl.pp-manager.tt@hitachi.com, linux-kernel@vger.kernel.org,
	Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Namhyung Kim <namhyung@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH -tip v2 2/3] Add weak save_stack_trace_regs()
Date: Wed, 08 Jun 2011 16:09:27 +0900
Message-ID: <20110608070927.17777.37895.stgit@fedora15> (raw)
In-Reply-To: <20110608070913.17777.37689.stgit@fedora15>

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@hitachi.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: linux-kernel@vger.kernel.org
---

 kernel/stacktrace.c |   13 ++++++++++---
 1 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index eb212f8..6fa38bc 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -26,12 +26,19 @@ 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");
+}


  parent reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-08  7:09 [PATCH -tip v2 0/3] Support stacktrace with dynamic event Masami Hiramatsu
2011-06-08  7:09 ` [PATCH -tip v2 1/3] [CLEANUP]x86: Swap save_stack_trace_regs parameters Masami Hiramatsu
2011-07-05 12:54   ` [tip:perf/core] x86: " tip-bot for Masami Hiramatsu
2011-06-08  7:09 ` Masami Hiramatsu [this message]
2011-07-05 12:55   ` [tip:perf/core] stack_trace: Add weak save_stack_trace_regs() tip-bot for Masami Hiramatsu
2011-06-08  7:09 ` [PATCH -tip v2 3/3] [BUGFIX]tracing/kprobes: Fix kprobe-tracer to support stack trace Masami Hiramatsu
2011-07-05 12:55   ` [tip:perf/core] tracing/kprobes: " tip-bot for Masami Hiramatsu

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