Commit 452b0d16 authored by Changbin Du's avatar Changbin Du Committed by Arnaldo Carvalho de Melo
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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: default avatarChangbin Du <changbin.du@gmail.com>
Tested-by: default avatarArnaldo 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent ffe7428e

tools/perf/builtin-ftrace.c

+1 −1
Original line number Diff line number Diff line
@@ -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) {