Commit-ID: f4efcce33d2e5224a905369f9906f3931f5d907c
Gitweb: http://git.kernel.org/tip/f4efcce33d2e5224a905369f9906f3931f5d907c
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 27 Oct 2015 17:35:58 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 27 Oct 2015 17:35:58 -0300
perf tools: Search for more options when passing args to -h
Recently 'perf <tool> -h' was made aware of arguments and would show
just the help for the arguments specified, but that required a strict
form, i.e.:
$ perf -h --tui
worked, but:
$ perf -h tui
didn't.
Make it support both cases and also look at the option help when neither
matches, so that he following examples works:
$ perf report -h interface
Usage: perf report [<options>]
--gtk Use the GTK2 interface
--stdio Use the stdio interface
--tui Use the TUI interface
$ perf report -h stack
Usage: perf report [<options>]
-g, --call-graph <print_type,threshold[,print_limit],order,
sort_key[,branch]>
Display call graph (stack chain/backtrace):
print_type: call graph printing style (graph|flat|fractal|none)
threshold: minimum call graph inclusion threshold (<percent>)
print_limit: maximum number of call graph entry (<number>)
order: call graph order (caller|callee)
sort_key: call graph sort key (function|address)
branch: include last branch info to call graph (branch)
Default: graph,0.5,caller,function
--max-stack <n> Set the maximum stack depth when parsing the
callchain, anything beyond the specified depth
will be ignored. Default: 127
$
Suggested-by: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: Brendan Gregg <brendan.d.gregg@xxxxxxxxx>
Cc: Chandler Carruth <chandlerc@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-xzqvamzqv3cv0p6w3inhols3@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/parse-options.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c
index 230e771..9fca092 100644
--- a/tools/perf/util/parse-options.c
+++ b/tools/perf/util/parse-options.c
@@ -695,8 +695,21 @@ static bool option__in_argv(const struct option *opt, const struct parse_opt_ctx
for (i = 1; i < ctx->argc; ++i) {
const char *arg = ctx->argv[i];
- if (arg[0] != '-')
+ if (arg[0] != '-') {
+ if (arg[1] == '\0') {
+ if (arg[0] == opt->short_name)
+ return true;
+ continue;
+ }
+
+ if (opt->long_name && strcmp(opt->long_name, arg) == 0)
+ return true;
+
+ if (opt->help && strcasestr(opt->help, arg) != NULL)
+ return true;
+
continue;
+ }
if (arg[1] == opt->short_name ||
(arg[1] == '-' && opt->long_name && strcmp(opt->long_name, arg + 2) == 0))
--
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