[tip:perf/core] perf report: Add report.children config option

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Commit-ID:  8d8e645ceafd726b8317949f899e4b3acfb20d29
Gitweb:     http://git.kernel.org/tip/8d8e645ceafd726b8317949f899e4b3acfb20d29
Author:     Namhyung Kim <namhyung@xxxxxxxxxx>
AuthorDate: Tue, 22 Jan 2013 18:09:46 +0900
Committer:  Jiri Olsa <jolsa@xxxxxxxxxx>
CommitDate: Sun, 1 Jun 2014 14:35:04 +0200

perf report: Add report.children config option

Add report.children config option for setting default value of
callchain accumulation.  It affects the report output only if
perf.data contains callchain info.

A user can write .perfconfig file like below to enable accumulation
by default:

  $ cat ~/.perfconfig
  [report]
  children = true

And it can be disabled through command line:

  $ perf report --no-children

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Tested-by: Arun Sharma <asharma@xxxxxx>
Tested-by: Rodrigo Campos <rodrigo@xxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1401335910-16832-17-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
 tools/perf/builtin-report.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index f27a8aa..6cac509 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -72,6 +72,10 @@ static int report__config(const char *var, const char *value, void *cb)
 		rep->min_percent = strtof(value, NULL);
 		return 0;
 	}
+	if (!strcmp(var, "report.children")) {
+		symbol_conf.cumulate_callchain = perf_config_bool(var, value);
+		return 0;
+	}
 
 	return perf_default_config(var, value, cb);
 }
--
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