perf tools: Add inverted call graph report support.

[deliverable/linux.git] / tools / perf / builtin-report.c

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 287a173523a7fa4d39c0c6635cbbaf94a0ac181a..271e252dc651961823a4a8b76aa489ff984e7801 100644 (file)
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -45,7 +45,8 @@ static struct perf_read_values        show_threads_values;
 static const char      default_pretty_printing_style[] = "normal";
 static const char      *pretty_printing_style = default_pretty_printing_style;
 
-static char            callchain_default_opt[] = "fractal,0.5";
+static char            callchain_default_opt[] = "fractal,0.5,callee";
+static bool            inverted_callchain;
 static symbol_filter_t annotate_init;
 
 static int perf_session__add_hist_entry(struct perf_session *session,
@@ -386,13 +387,29 @@ parse_callchain_opt(const struct option *opt __used, const char *arg,
        if (!tok)
                goto setup;
 
-       tok2 = strtok(NULL, ",");
        callchain_param.min_percent = strtod(tok, &endptr);
        if (tok == endptr)
                return -1;
 
-       if (tok2)
+       /* get the print limit */
+       tok2 = strtok(NULL, ",");
+       if (!tok2)
+               goto setup;
+
+       if (tok2[0] != 'c') {
                callchain_param.print_limit = strtod(tok2, &endptr);
+               tok2 = strtok(NULL, ",");
+               if (!tok2)
+                       goto setup;
+       }
+
+       /* get the call chain order */
+       if (!strcmp(tok2, "caller"))
+               callchain_param.order = ORDER_CALLER;
+       else if (!strcmp(tok2, "callee"))
+               callchain_param.order = ORDER_CALLEE;
+       else
+               return -1;
 setup:
        if (callchain_register_param(&callchain_param) < 0) {
                fprintf(stderr, "Can't register callchain params\n");
@@ -436,9 +453,10 @@ static const struct option options[] = {
                   "regex filter to identify parent, see: '--sort parent'"),
        OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
                    "Only display entries with parent-match"),
-       OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent",
-                    "Display callchains using output_type (graph, flat, fractal, or none) and min percent threshold. "
-                    "Default: fractal,0.5", &parse_callchain_opt, callchain_default_opt),
+       OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent, call_order",
+                    "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold and callchain order. "
+                    "Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt),
+       OPT_BOOLEAN('G', "inverted", &inverted_callchain, "alias for inverted call graph"),
        OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
                   "only consider symbols in these dsos"),
        OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
@@ -467,6 +485,9 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
        else if (use_tui)
                use_browser = 1;
 
+       if (inverted_callchain)
+               callchain_param.order = ORDER_CALLER;
+
        if (strcmp(input_name, "-") != 0)
                setup_browser(true);
        else