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| author | Yunlong Song <yunlong.song@huawei.com> | 2015-02-27 13:21:30 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-27 21:52:14 +0300 |
| commit | 3ef1e65c829c86ffaa94a4ed59fed5da37f9610a (patch) | |
| tree | 544d46034b28944136b4d6293fe2870793d6b200 | |
| parent | ed45752061be11a40f57df4304296147dbda2da9 (diff) | |
| download | linux-3ef1e65c829c86ffaa94a4ed59fed5da37f9610a.tar.xz | |
perf tools: Remove the '--(null)' long_name for --list-opts
If the long_name of a 'struct option' is defined as NULL, --list-opts
will incorrectly print '--(null)' in its output. As a result, '--(null)'
will finally appear in the case of bash completion, e.g. 'perf record
--'.
Example:
Before this patch:
$ perf record --list-opts
--event --filter --pid --tid --realtime --no-buffering --raw-samples
--all-cpus --cpu --count --output --no-inherit --freq --mmap-pages
--group --(null) --call-graph --verbose --quiet --stat --data
--timestamp --period --no-samples --no-buildid-cache --no-buildid
--cgroup --delay --uid --branch-any --branch-filter --weight
--transaction --per-thread --intr-regs
After this patch:
$ perf record --list-opts
--event --filter --pid --tid --realtime --no-buffering --raw-samples
--all-cpus --cpu --count --output --no-inherit --freq --mmap-pages
--group --call-graph --verbose --quiet --stat --data --timestamp
--period --no-samples --no-buildid-cache --no-buildid --cgroup --delay
--uid --branch-any --branch-filter --weight --transaction --per-thread
--intr-regs
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1425032491-20224-7-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/parse-options.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c index b0ef2d813d2f..1457d6639b60 100644 --- a/tools/perf/util/parse-options.c +++ b/tools/perf/util/parse-options.c @@ -505,7 +505,8 @@ int parse_options_subcommand(int argc, const char **argv, const struct option *o break; case PARSE_OPT_LIST_OPTS: while (options->type != OPTION_END) { - printf("--%s ", options->long_name); + if (options->long_name) + printf("--%s ", options->long_name); options++; } putchar('\n'); |