linux-kernel - [tip:perf/urgent] perf report: Set callchain_param.record

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Date:	Wed, 15 Oct 2014 22:23:39 -0700
From:	tip-bot for Namhyung Kim <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	tglx@...utronix.de, acme@...hat.com, hpa@...or.com,
	paulus@...ba.org, jolsa@...hat.com, a.p.zijlstra@...llo.nl,
	fweisbec@...il.com, jean.pihet@...aro.org, jolsa@...nel.org,
	linux-kernel@...r.kernel.org, dsahern@...il.com,
	namhyung@...nel.org, mingo@...nel.org, namhyung.kim@....com
Subject: [tip:perf/urgent] perf report:
  Set callchain_param.record_mode for future use

Commit-ID:  0cdccac6fe4b1316f04f0dbfcc4efab51932014a
Gitweb:     http://git.kernel.org/tip/0cdccac6fe4b1316f04f0dbfcc4efab51932014a
Author:     Namhyung Kim <namhyung@...nel.org>
AuthorDate: Mon, 6 Oct 2014 09:45:59 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 15 Oct 2014 16:20:03 -0300

perf report: Set callchain_param.record_mode for future use

Normally the callchain_param.record_mode is used only for record path.
But as it might need to prepare something for dwarf unwinding, setup
this info for perf report too.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Jean Pihet <jean.pihet@...aro.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung.kim@....com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1412556363-26229-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-report.c     | 7 +++++++
 tools/perf/tests/dwarf-unwind.c | 3 +++
 2 files changed, 10 insertions(+)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 2cfc4b93..140a6cd 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -257,6 +257,13 @@ static int report__setup_sample_type(struct report *rep)
 		}
 	}
 
+	if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
+		if ((sample_type & PERF_SAMPLE_REGS_USER) &&
+		    (sample_type & PERF_SAMPLE_STACK_USER))
+			callchain_param.record_mode = CALLCHAIN_DWARF;
+		else
+			callchain_param.record_mode = CALLCHAIN_FP;
+	}
 	return 0;
 }
 
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index 96adb73..fc25e57 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -9,6 +9,7 @@
 #include "perf_regs.h"
 #include "map.h"
 #include "thread.h"
+#include "callchain.h"
 
 static int mmap_handler(struct perf_tool *tool __maybe_unused,
 			union perf_event *event,
@@ -120,6 +121,8 @@ int test__dwarf_unwind(void)
 		return -1;
 	}
 
+	callchain_param.record_mode = CALLCHAIN_DWARF;
+
 	if (init_live_machine(machine)) {
 		pr_err("Could not init machine\n");
 		goto out;
--
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