linux-kernel - [PATCH RFC V4 1/4] perf,tools: introduce callgraph

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Message-Id: <1437035170-12911-2-git-send-email-kan.liang@intel.com>
Date:	Thu, 16 Jul 2015 04:26:07 -0400
From:	kan.liang@...el.com
To:	acme@...nel.org, jolsa@...nel.org
Cc:	namhyung@...nel.org, ak@...ux.intel.com,
	linux-kernel@...r.kernel.org, Kan Liang <kan.liang@...el.com>
Subject: [PATCH RFC V4 1/4] perf,tools: introduce callgraph_set for callgraph option

From: Kan Liang <kan.liang@...el.com>

Introduce callgraph_set to indicate whether the callgraph option was set
by user.

Signed-off-by: Kan Liang <kan.liang@...el.com>
---
 tools/perf/builtin-record.c | 6 ++++--
 tools/perf/perf.h           | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 283fe96..1d40be9 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -762,12 +762,13 @@ static void callchain_debug(void)
 			 callchain_param.dump_size);
 }
 
-int record_parse_callchain_opt(const struct option *opt __maybe_unused,
+int record_parse_callchain_opt(const struct option *opt,
 			       const char *arg,
 			       int unset)
 {
 	int ret;
 
+	*(bool *)opt->set = true;
 	callchain_param.enabled = !unset;
 
 	/* --no-call-graph */
@@ -784,10 +785,11 @@ int record_parse_callchain_opt(const struct option *opt __maybe_unused,
 	return ret;
 }
 
-int record_callchain_opt(const struct option *opt __maybe_unused,
+int record_callchain_opt(const struct option *opt,
 			 const char *arg __maybe_unused,
 			 int unset __maybe_unused)
 {
+	*(bool *)opt->set = true;
 	callchain_param.enabled = true;
 
 	if (callchain_param.record_mode == CALLCHAIN_NONE)
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 937b16a..9ba02e0 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -52,6 +52,7 @@ struct record_opts {
 	bool	     sample_weight;
 	bool	     sample_time;
 	bool	     sample_time_set;
+	bool	     callgraph_set;
 	bool	     period;
 	bool	     sample_intr_regs;
 	bool	     running_time;
-- 
1.8.3.1

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