diff options
Diffstat (limited to 'tools/perf/builtin-evlist.c')
| -rw-r--r-- | tools/perf/builtin-evlist.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c index 98e992801251..a9bd7bbef5a9 100644 --- a/tools/perf/builtin-evlist.c +++ b/tools/perf/builtin-evlist.c @@ -7,7 +7,6 @@ #include <linux/list.h> -#include "perf.h" #include "util/evlist.h" #include "util/evsel.h" #include "util/evsel_fprintf.h" @@ -17,6 +16,15 @@ #include "util/data.h" #include "util/debug.h" #include <linux/err.h> +#include "util/tool.h" +#include "util/util.h" + +static int process_header_feature(struct perf_session *session __maybe_unused, + union perf_event *event __maybe_unused) +{ + session_done = 1; + return 0; +} static int __cmd_evlist(const char *file_name, struct perf_attr_details *details) { @@ -27,22 +35,36 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details .mode = PERF_DATA_MODE_READ, .force = details->force, }; - bool has_tracepoint = false; + struct perf_tool tool; + bool has_tracepoint = false, has_group = false; - session = perf_session__new(&data, 0, NULL); + perf_tool__init(&tool, /*ordered_events=*/false); + /* only needed for pipe mode */ + tool.attr = perf_event__process_attr; + tool.feature = process_header_feature; + session = perf_session__new(&data, &tool); if (IS_ERR(session)) return PTR_ERR(session); + if (data.is_pipe) + perf_session__process_events(session); + evlist__for_each_entry(session->evlist, pos) { evsel__fprintf(pos, details, stdout); if (pos->core.attr.type == PERF_TYPE_TRACEPOINT) has_tracepoint = true; + + if (!evsel__is_group_leader(pos)) + has_group = true; } if (has_tracepoint && !details->trace_fields) printf("# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events\n"); + if (has_group && !details->event_group) + printf("# Tip: use 'perf evlist -g' to show group information\n"); + perf_session__delete(session); return 0; } |