From: David Ahern <[email protected]> Currently 'perf list' is not very helpful if you forget the syntax:
$ perf list -h List of pre-defined events (to be used in -e): After: $ perf list -h usage: perf list [hw|sw|cache|tracepoint|pmu|event_glob] Signed-off-by: David Ahern <[email protected]> Acked-by: Ingo Molnar <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/builtin-list.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c index 45000e7d4398..011195e38f21 100644 --- a/tools/perf/builtin-list.c +++ b/tools/perf/builtin-list.c @@ -14,20 +14,31 @@ #include "util/parse-events.h" #include "util/cache.h" #include "util/pmu.h" +#include "util/parse-options.h" int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused) { int i; + const struct option list_options[] = { + OPT_END() + }; + const char * const list_usage[] = { + "perf list [hw|sw|cache|tracepoint|pmu|event_glob]", + NULL + }; + + argc = parse_options(argc, argv, list_options, list_usage, + PARSE_OPT_STOP_AT_NON_OPTION); setup_pager(); - if (argc == 1) { + if (argc == 0) { print_events(NULL, false); return 0; } - for (i = 1; i < argc; ++i) { - if (i > 2) + for (i = 0; i < argc; ++i) { + if (i) putchar('\n'); if (strncmp(argv[i], "tracepoint", 10) == 0) print_tracepoint_events(NULL, NULL, false); -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
