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authorChangbin Du <changbin.du@gmail.com>2020-05-10 18:06:10 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-05-28 16:03:27 +0300
commit452b0d160ad150c1b97982e438a2a69571d320f3 (patch)
tree7c2075ad54c6dc0044ff144b4aec8fefb2364136 /tools/perf
parentffe7428e6dc85c66026a76123f02348dac335454 (diff)
downloadlinux-452b0d160ad150c1b97982e438a2a69571d320f3.tar.xz
perf ftrace: Trace system wide if no target is given
This align ftrace to other perf sub-commands that if no target specified then we trace all functions. Signed-off-by: Changbin Du <changbin.du@gmail.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: http://lore.kernel.org/lkml/20200510150628.16610-2-changbin.du@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-ftrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index 55eda54240fb..b7d3fb5fa8b1 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -494,7 +494,7 @@ int cmd_ftrace(int argc, const char **argv)
argc = parse_options(argc, argv, ftrace_options, ftrace_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (!argc && target__none(&ftrace.target))
- usage_with_options(ftrace_usage, ftrace_options);
+ ftrace.target.system_wide = true;
ret = target__validate(&ftrace.target);
if (ret) {