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SubjectRe: [PATCH] perf list: Fix --raw-dump argument
On Thu, Mar 27, 2014 at 05:27:41PM -0400, Ramkumar Ramachandra wrote:
> While adding usage information, 44d742e (perf list: Add usage,
> 2013-10-30) broke
>
> $ perf list --raw-dump
>
> Fix this by making raw-dump a proper argument.
>
> Cc: David Ahern <dsahern@gmail.com>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
> ---
> I sent this patch earlier, but it didn't get picked up due to some
> confusion.
>
> tools/perf/builtin-list.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
> index 011195e..2629c24 100644
> --- a/tools/perf/builtin-list.c
> +++ b/tools/perf/builtin-list.c
> @@ -19,7 +19,9 @@
> int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
> {
> int i;
> + bool raw_dump = false;
> const struct option list_options[] = {
> + OPT_BOOLEAN(0, "raw-dump", &raw_dump, "raw dump for completion"),
> OPT_END()
> };
> const char * const list_usage[] = {
> @@ -32,6 +34,10 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
>
> setup_pager();
>
> + if (raw_dump) {
> + print_events(NULL, true);
> + return 0;
> + }
> if (argc == 0) {
> print_events(NULL, false);
> return 0;
> @@ -53,8 +59,6 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
> print_hwcache_events(NULL, false);
> else if (strcmp(argv[i], "pmu") == 0)
> print_pmu_events(NULL, false);
> - else if (strcmp(argv[i], "--raw-dump") == 0)
> - print_events(NULL, true);
> else {
> char *sep = strchr(argv[i], ':'), *s;
> int sep_idx;
> --
> 1.9.0.431.g014438b
>

hi,
I understand you're just fixing a bug, but if it's an --raw-dump
option (not command) shoudn't we use it for all commands? like:

$ perf list --raw-dump # all events via raw dump
$ perf list --raw-dump pmu # pmu event via raw dump
...

Please check attached change to your patch below (not completely working/tested).

Also.. the option is not mentioned in the man page (please do ;-)),
but looks like the usage is for bash completion only, so we probably
need only the first example functionality above.

If this is the case I think it should not be an option but another
command like 'raw-dump'.

thanks,
jirka


---
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 2629c24..a3b2da8 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -34,12 +34,8 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)

setup_pager();

- if (raw_dump) {
- print_events(NULL, true);
- return 0;
- }
if (argc == 0) {
- print_events(NULL, false);
+ print_events(NULL, raw_dump);
return 0;
}

@@ -47,7 +43,7 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
if (i)
putchar('\n');
if (strncmp(argv[i], "tracepoint", 10) == 0)
- print_tracepoint_events(NULL, NULL, false);
+ print_tracepoint_events(NULL, NULL, raw_dump);
else if (strcmp(argv[i], "hw") == 0 ||
strcmp(argv[i], "hardware") == 0)
print_events_type(PERF_TYPE_HARDWARE);
@@ -56,15 +52,15 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
print_events_type(PERF_TYPE_SOFTWARE);
else if (strcmp(argv[i], "cache") == 0 ||
strcmp(argv[i], "hwcache") == 0)
- print_hwcache_events(NULL, false);
+ print_hwcache_events(NULL, raw_dump);
else if (strcmp(argv[i], "pmu") == 0)
- print_pmu_events(NULL, false);
+ print_pmu_events(NULL, raw_dump);
else {
char *sep = strchr(argv[i], ':'), *s;
int sep_idx;

if (sep == NULL) {
- print_events(argv[i], false);
+ print_events(argv[i], raw_dump);
continue;
}
sep_idx = sep - argv[i];
@@ -73,7 +69,7 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
return -1;

s[sep_idx] = '\0';
- print_tracepoint_events(s, s + sep_idx + 1, false);
+ print_tracepoint_events(s, s + sep_idx + 1, raw_dump);
free(s);
}
}

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