96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Builtin evlist command: Show the list of event selectors present
|
|
* in a perf.data file.
|
|
*/
|
|
#include "builtin.h"
|
|
|
|
#include <linux/list.h>
|
|
|
|
#include "util/evlist.h"
|
|
#include "util/evsel.h"
|
|
#include "util/evsel_fprintf.h"
|
|
#include "util/parse-events.h"
|
|
#include <subcmd/parse-options.h>
|
|
#include "util/session.h"
|
|
#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)
|
|
{
|
|
struct perf_session *session;
|
|
struct evsel *pos;
|
|
struct perf_data data = {
|
|
.path = file_name,
|
|
.mode = PERF_DATA_MODE_READ,
|
|
.force = details->force,
|
|
};
|
|
struct perf_tool tool = {
|
|
/* only needed for pipe mode */
|
|
.attr = perf_event__process_attr,
|
|
.feature = process_header_feature,
|
|
};
|
|
bool has_tracepoint = false;
|
|
|
|
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 (has_tracepoint && !details->trace_fields)
|
|
printf("# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events\n");
|
|
|
|
perf_session__delete(session);
|
|
return 0;
|
|
}
|
|
|
|
int cmd_evlist(int argc, const char **argv)
|
|
{
|
|
struct perf_attr_details details = { .verbose = false, };
|
|
const struct option options[] = {
|
|
OPT_STRING('i', "input", &input_name, "file", "Input file name"),
|
|
OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
|
|
OPT_BOOLEAN('v', "verbose", &details.verbose,
|
|
"Show all event attr details"),
|
|
OPT_BOOLEAN('g', "group", &details.event_group,
|
|
"Show event group information"),
|
|
OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
|
|
OPT_BOOLEAN(0, "trace-fields", &details.trace_fields, "Show tracepoint fields"),
|
|
OPT_END()
|
|
};
|
|
const char * const evlist_usage[] = {
|
|
"perf evlist [<options>]",
|
|
NULL
|
|
};
|
|
|
|
argc = parse_options(argc, argv, options, evlist_usage, 0);
|
|
if (argc)
|
|
usage_with_options(evlist_usage, options);
|
|
|
|
if (details.event_group && (details.verbose || details.freq)) {
|
|
usage_with_options_msg(evlist_usage, options,
|
|
"--group option is not compatible with other options\n");
|
|
}
|
|
|
|
return __cmd_evlist(input_name, &details);
|
|
}
|