perf callchain: Support handling complete branch stacks as histograms

[mirror_ubuntu-artful-kernel.git] / tools / perf / util / callchain.c

diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 517ed84db97a9b895771b69437168d9c6a4edcca..cf524a35cc841a9784a77b3da4794409130283c9 100644 (file)
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -149,6 +149,10 @@ static int parse_callchain_sort_key(const char *value)
                callchain_param.key = CCKEY_ADDRESS;
                return 0;
        }
+       if (!strncmp(value, "branch", strlen(value))) {
+               callchain_param.branch_callstack = 1;
+               return 0;
+       }
        return -1;
 }