提交 d37a92dc 编写于 作者: N Namhyung Kim 提交者: Arnaldo Carvalho de Melo

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: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NIngo Molnar <mingo@kernel.org>
Reviewed-by: NIngo Molnar <mingo@kernel.org>
Enthusiastically-Supported-by: NIngo 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.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
上级 91aba0a6
......@@ -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;
......
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