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| author | Wei Li <liwei391@huawei.com> | 2022-03-25 12:20:32 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-03-26 16:55:57 +0300 |
| commit | ae0f4eb34fc3014f7eba78fab90a0e98e441a4cd (patch) | |
| tree | c768d42297a81776eefd3f924631cd4f0e3bb176 /tools/perf/builtin-timechart.c | |
| parent | c2eeac985657f61543e6c5a333b94f3bd18e6b9d (diff) | |
| download | linux-ae0f4eb34fc3014f7eba78fab90a0e98e441a4cd.tar.xz | |
perf tools: Enhance the matching of sub-commands abbreviations
We support short command 'rec*' for 'record' and 'rep*' for 'report' in
lots of sub-commands, but the matching is not quite strict currnetly.
It may be puzzling sometime, like we mis-type a 'recport' to report but
it will perform 'record' in fact without any message.
To fix this, add a check to ensure that the short cmd is valid prefix
of the real command.
Committer testing:
[root@quaco ~]# perf c2c re sleep 1
Usage: perf c2c {record|report}
-v, --verbose be more verbose (show counter open errors, etc)
# perf c2c rec sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.038 MB perf.data (16 samples) ]
# perf c2c recport sleep 1
Usage: perf c2c {record|report}
-v, --verbose be more verbose (show counter open errors, etc)
# perf c2c record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.038 MB perf.data (15 samples) ]
# perf c2c records sleep 1
Usage: perf c2c {record|report}
-v, --verbose be more verbose (show counter open errors, etc)
#
Signed-off-by: Wei Li <liwei391@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Rui Xiang <rui.xiang@huawei.com>
Link: http://lore.kernel.org/lkml/20220325092032.2956161-1-liwei391@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-timechart.c')
| -rw-r--r-- | tools/perf/builtin-timechart.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 43bf4d67edb0..afce731cec16 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -35,6 +35,7 @@ #include "util/tool.h" #include "util/data.h" #include "util/debug.h" +#include "util/string2.h" #include <linux/err.h> #ifdef LACKS_OPEN_MEMSTREAM_PROTOTYPE @@ -1983,7 +1984,7 @@ int cmd_timechart(int argc, const char **argv) return -1; } - if (argc && !strncmp(argv[0], "rec", 3)) { + if (argc && strlen(argv[0]) > 2 && strstarts("record", argv[0])) { argc = parse_options(argc, argv, timechart_record_options, timechart_record_usage, PARSE_OPT_STOP_AT_NON_OPTION); |