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authorJiri Olsa <jolsa@redhat.com>2014-07-17 12:55:00 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-07-17 12:58:59 -0300
commitbbb2cea7e8dd496b41558df1a0ec9205497b7ebf (patch)
tree7a73131f1871315194c0a3a594c82b0946c3ca3d /tools/perf/perf.c
parentc95688aac7723c17b2badc23233706b2f02e58ed (diff)
downloadlinux-bbb2cea7e8dd496b41558df1a0ec9205497b7ebf.tar.gz
perf tools: Add --debug optionto set debug variable
Adding --debug option as a way to setup debug variables. Starting with support for verbose, more will come. It's possible to use it now with report command: $ perf --debug verbose ... $ perf --debug verbose=2 ... I'll need this support to add separated debug variable for ordered events change in order to separate debug output out of standard verbose stream. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20140717105500.GG516@krava.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/perf.c')
-rw-r--r--tools/perf/perf.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 95c58fc15284..eed3fb2a3af0 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -13,11 +13,12 @@
#include "util/quote.h"
#include "util/run-command.h"
#include "util/parse-events.h"
+#include "util/debug.h"
#include <api/fs/debugfs.h>
#include <pthread.h>
const char perf_usage_string[] =
- "perf [--version] [--help] COMMAND [ARGS]";
+ "perf [--version] [--debug variable[=VALUE]] [--help] COMMAND [ARGS]";
const char perf_more_info_string[] =
"See 'perf help COMMAND' for more information on a specific command.";
@@ -212,6 +213,16 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
printf("%s ", p->cmd);
}
exit(0);
+ } else if (!strcmp(cmd, "--debug")) {
+ if (*argc < 2) {
+ fprintf(stderr, "No variable specified for --debug.\n");
+ usage(perf_usage_string);
+ }
+ if (perf_debug_option((*argv)[1]))
+ usage(perf_usage_string);
+
+ (*argv)++;
+ (*argc)--;
} else {
fprintf(stderr, "Unknown option: %s\n", cmd);
usage(perf_usage_string);