perf timechart: Add "perf timechart record"

Add a command line option to record a trace, similar to "perf sched record".

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: fweisbec@gmail.com
Cc: peterz@infradead.org
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20090919133442.0dc2c7f5@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 00fac1b..58d737e 100644 (file)
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1086,11 +1086,42 @@ done:
        return rc;
 }
 
-static const char * const report_usage[] = {
-       "perf report [<options>] <command>",
+static const char * const timechart_usage[] = {
+       "perf timechart [<options>] {record}",
        NULL
 };
 
+static const char *record_args[] = {
+       "record",
+       "-a",
+       "-R",
+       "-M",
+       "-f",
+       "-c", "1",
+       "-e", "power:power_start",
+       "-e", "power:power_end",
+       "-e", "power:power_frequency",
+       "-e", "sched:sched_wakeup",
+       "-e", "sched:sched_switch",
+};
+
+static int __cmd_record(int argc, const char **argv)
+{
+       unsigned int rec_argc, i, j;
+       const char **rec_argv;
+
+       rec_argc = ARRAY_SIZE(record_args) + argc - 1;
+       rec_argv = calloc(rec_argc + 1, sizeof(char *));
+
+       for (i = 0; i < ARRAY_SIZE(record_args); i++)
+               rec_argv[i] = strdup(record_args[i]);
+
+       for (j = 1; j < (unsigned int)argc; j++, i++)
+               rec_argv[i] = argv[j];
+
+       return cmd_record(i, rec_argv, NULL);
+}
+
 static const struct option options[] = {
        OPT_STRING('i', "input", &input_name, "file",
                    "input file name"),
@@ -1106,13 +1137,13 @@ int cmd_timechart(int argc, const char **argv, const char *prefix __used)
 
        page_size = getpagesize();
 
-       argc = parse_options(argc, argv, options, report_usage, 0);
+       argc = parse_options(argc, argv, options, timechart_usage,
+                       PARSE_OPT_STOP_AT_NON_OPTION);
 
-       /*
-        * Any (unrecognized) arguments left?
-        */
-       if (argc)
-               usage_with_options(report_usage, options);
+       if (argc && !strncmp(argv[0], "rec", 3))
+               return __cmd_record(argc, argv);
+       else if (argc)
+               usage_with_options(timechart_usage, options);
 
        setup_pager();