From 452b0d160ad150c1b97982e438a2a69571d320f3 Mon Sep 17 00:00:00 2001 From: Changbin Du Date: Sun, 10 May 2020 23:06:10 +0800 Subject: [PATCH] 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 Tested-by: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Steven Rostedt (VMware) Link: http://lore.kernel.org/lkml/20200510150628.16610-2-changbin.du@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-ftrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c index 55eda54..b7d3fb5 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) { -- 2.7.4