[PATCH 15/21] perf report: Add report.children config option

From: Namhyung Kim
Date: Tue Dec 24 2013 - 03:24:59 EST

From: Namhyung Kim <namhyung.kim@xxxxxxx>

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
children = true

And it can be disabled through command line:

$ perf report --no-children

Cc: Arun Sharma <asharma@xxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@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 2e95ece29121..615f078cc94e 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -71,6 +71,10 @@ 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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