perf ftrace: Trace system wide if no target is given

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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>

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Changbin Du 2020-05-10 23:06:10 +08:00 • committed by Arnaldo Carvalho de Melo

parent ffe7428e6d

commit 452b0d160a

1 changed files with 1 additions and 1 deletions

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tools/perf/builtin-ftrace.c

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