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authorNamhyung Kim <namhyung@kernel.org>2015-10-25 00:49:27 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-10-27 09:28:44 -0300
commitc71183697250b356be6c7c1abc2e9a74073e1dca (patch)
tree704044c1c38f9f0da738712b807fb01f201d3e59 /tools/perf/builtin-script.c
parent01b19455c08cc37d1c3ef174524278e84c92fec1 (diff)
downloadlinux-c71183697250b356be6c7c1abc2e9a74073e1dca.tar.gz
perf tools: Introduce usage_with_options_msg()
Now usage_with_options() setup a pager before printing message so normal printf() or pr_err() will not be shown. The usage_with_options_msg() can be used to print some help message before usage strings. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445701767-12731-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-script.c')
-rw-r--r--tools/perf/builtin-script.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 2653c0273b89..278acb22f029 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1767,9 +1767,9 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
if (!rec_script_path && !rep_script_path) {
- fprintf(stderr, " Couldn't find script %s\n\n See perf"
+ usage_with_options_msg(script_usage, options,
+ "Couldn't find script `%s'\n\n See perf"
" script -l for available scripts.\n", argv[0]);
- usage_with_options(script_usage, options);
}
if (is_top_script(argv[0])) {
@@ -1780,10 +1780,10 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
rep_args = has_required_arg(rep_script_path);
rec_args = (argc - 1) - rep_args;
if (rec_args < 0) {
- fprintf(stderr, " %s script requires options."
+ usage_with_options_msg(script_usage, options,
+ "`%s' script requires options."
"\n\n See perf script -l for available "
"scripts and options.\n", argv[0]);
- usage_with_options(script_usage, options);
}
}