From: Namhyung Kim <namhyung....@lge.com>

Add report.cumulate 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]
  cumulate = true

And it can be disabled through command line:

  $ perf report --no-cumulate

Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
 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 206947a52fa8..923ed2752209 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -71,6 +71,10 @@ static int perf_report_config(const char *var, const char 
*value, void *cb)
                rep->min_percent = strtof(value, NULL);
                return 0;
        }
+       if (!strcmp(var, "report.cumulate")) {
+               symbol_conf.cumulate_callchain = perf_config_bool(var, value);
+               return 0;
+       }
 
        return perf_default_config(var, value, cb);
 }
-- 
1.7.11.7

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