1 files changed, 8 insertions, 0 deletions

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 0f5771f615d..a177a591b52 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -37,6 +37,7 @@ static pid_t			target_pid			= -1;
 static int                      inherit                         = 1;
 static int                      force                           = 0;
 static int                      append_file                     = 0;
+static int                      call_graph                      = 0;
 static int                      verbose                         = 0;
 
 static long                     samples;
@@ -351,11 +352,16 @@ static void create_counter(int counter, int cpu, pid_t pid)
         int track = 1;
 
         attr->sample_type       = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
+
         if (freq) {
                 attr->sample_type       |= PERF_SAMPLE_PERIOD;
                 attr->freq              = 1;
                 attr->sample_freq       = freq;
         }
+
+        if (call_graph)
+                attr->sample_type       |= PERF_SAMPLE_CALLCHAIN;
+
         attr->mmap              = track;
         attr->comm              = track;
         attr->inherit           = (cpu < 0) && inherit;
@@ -555,6 +561,8 @@ static const struct option options[] = {
                     "profile at this frequency"),
         OPT_INTEGER('m', "mmap-pages", &mmap_pages,
                     "number of mmap data pages"),
+        OPT_BOOLEAN('g', "call-graph", &call_graph,
+                    "do call-graph (stack chain/backtrace) recording"),
         OPT_BOOLEAN('v', "verbose", &verbose,
                     "be more verbose (show counter open errors, etc)"),
         OPT_END()