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-rw-r--r--tools/perf/Documentation/perf-trace.txt4
-rw-r--r--tools/perf/builtin-trace.c4
2 files changed, 5 insertions, 3 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 60e5900..c00a76f 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -45,9 +45,11 @@ OPTIONS
--list=::
Display a list of available trace scripts.
--s::
+-s ['lang']::
--script=::
Process trace data with the given script ([lang]:script[.ext]).
+ If the string 'lang' is specified in place of a script name, a
+ list of supported languages will be displayed instead.
-g::
--gen-script=::
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 0b65779..d5d20c3 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -219,9 +219,9 @@ static int parse_scriptname(const struct option *opt __used,
const char *script, *ext;
int len;
- if (strcmp(str, "list") == 0) {
+ if (strcmp(str, "lang") == 0) {
list_available_languages();
- return 0;
+ exit(0);
}
script = strchr(str, ':');
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