From d37a92dcb45094dc02836c8a77c693c6f9916fb2 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 1 Nov 2013 16:33:14 +0900 Subject: [PATCH] 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 [] -s, --sort sort by key(s): pid, comm, dso, symbol, ... Signed-off-by: Namhyung Kim Acked-by: Ingo Molnar Reviewed-by: Ingo Molnar Enthusiastically-Supported-by: Ingo Molnar Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1383291195-24386-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-top.c | 8 +++++--- 1 file 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; -- 2.7.4