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authorNamhyung Kim <namhyung.kim@lge.com>2013-11-01 07:33:14 (GMT)
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-11-04 15:56:41 (GMT)
commitd37a92dcb45094dc02836c8a77c693c6f9916fb2 (patch)
treeff873f6e1c351c7e1753e4e01ad7cbf1dde96337
parent91aba0a62e24ff7a567e13e1d88deab711df6f0f (diff)
downloadlinux-d37a92dcb45094dc02836c8a77c693c6f9916fb2.tar.xz
perf top: Use parse_options_usage() for -s option failure
The -s (--sort) option was processed after normal option parsing so that it cannot call the parse_options_usage() automatically. Currently it calls usage_with_options() which shows entire help messages for event option. Fix it by showing just -s options. $ perf top -s help Error: Unknown --sort key: `help' usage: perf top [<options>] -s, --sort <key[,key2...]> sort by key(s): pid, comm, dso, symbol, ... Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Ingo Molnar <mingo@kernel.org> Enthusiastically-Supported-by: Ingo Molnar <mingo@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1383291195-24386-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/builtin-top.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 21db76d..ca5ca37 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1040,7 +1040,7 @@ parse_percent_limit(const struct option *opt, const char *arg,
int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
{
- int status;
+ int status = -1;
char errbuf[BUFSIZ];
struct perf_top top = {
.count_filter = 5,
@@ -1159,8 +1159,10 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
if (sort_order == default_sort_order)
sort_order = "dso,symbol";
- if (setup_sorting() < 0)
- usage_with_options(top_usage, options);
+ if (setup_sorting() < 0) {
+ parse_options_usage(top_usage, options, "s", 1);
+ goto out_delete_evlist;
+ }
/* display thread wants entries to be collapsed in a different tree */
sort__need_collapse = 1;