From f526d68b6ce9ba7a2bd94e663e240a022524c58a Mon Sep 17 00:00:00 2001 From: Tom Zanussi Date: Wed, 27 Jan 2010 02:27:52 -0600 Subject: [PATCH] perf/scripts: Fix supported language listing option 'perf trace -s list' prints a list of the supported scripting languages. One problem with it is that it falls through and prints the trace as well. The use of 'list' for this also makes it easy to confuse with 'perf trace -l', used for listing available scripts. So change 'perf trace -s list' to 'perf trace -s lang' and fixes the fall-through problem. Signed-off-by: Tom Zanussi Cc: Ingo Molnar Cc: Steven Rostedt Cc: Keiichi KII Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: <1264580883-15324-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker --- tools/perf/Documentation/perf-trace.txt | 4 +++- tools/perf/builtin-trace.c | 4 ++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index 60e5900da483..c00a76fcb8d6 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 0b65779e3c10..d5d20c34e221 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, ':');