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perf/scripts: Fix supported language listing option

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'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>
This commit is contained in:
Tom Zanussi 2010-01-27 02:27:52 -06:00 committed by Frederic Weisbecker
parent faa5c5c36e
commit f526d68b6c
2 changed files with 5 additions and 3 deletions
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4
tools/perf/Documentation/perf-trace.txt
View file

@ -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=::

4
tools/perf/builtin-trace.c
View file

@ -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, ':');