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authorTom Zanussi <tzanussi@gmail.com>2010-01-27 02:27:52 -0600
committerFrederic Weisbecker <fweisbec@gmail.com>2010-02-23 20:34:42 +0100
commitf526d68b6ce9ba7a2bd94e663e240a022524c58a (patch)
tree26b1477259ac0563ba90106a451e40aaa7904321
parentfaa5c5c36ec50bf43e39c7798ce9701e6b002db3 (diff)
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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 <tzanussi@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Keiichi KII <k-keiichi@bx.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1264580883-15324-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
-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 60e5900da48..c00a76fcb8d 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 0b65779e3c1..d5d20c34e22 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, ':');