linux/tools/perf/builtin-evlist.c
<<
>>
Prefs
   1/*
   2 * Builtin evlist command: Show the list of event selectors present
   3 * in a perf.data file.
   4 */
   5#include "builtin.h"
   6
   7#include "util/util.h"
   8
   9#include <linux/list.h>
  10
  11#include "perf.h"
  12#include "util/evlist.h"
  13#include "util/evsel.h"
  14#include "util/parse-events.h"
  15#include "util/parse-options.h"
  16#include "util/session.h"
  17
  18static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
  19{
  20        struct perf_session *session;
  21        struct perf_evsel *pos;
  22
  23        session = perf_session__new(file_name, O_RDONLY, 0, false, NULL);
  24        if (session == NULL)
  25                return -ENOMEM;
  26
  27        list_for_each_entry(pos, &session->evlist->entries, node)
  28                perf_evsel__fprintf(pos, details, stdout);
  29
  30        perf_session__delete(session);
  31        return 0;
  32}
  33
  34int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
  35{
  36        struct perf_attr_details details = { .verbose = false, };
  37        const struct option options[] = {
  38        OPT_STRING('i', "input", &input_name, "file", "Input file name"),
  39        OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
  40        OPT_BOOLEAN('v', "verbose", &details.verbose,
  41                    "Show all event attr details"),
  42        OPT_BOOLEAN('g', "group", &details.event_group,
  43                    "Show event group information"),
  44        OPT_END()
  45        };
  46        const char * const evlist_usage[] = {
  47                "perf evlist [<options>]",
  48                NULL
  49        };
  50
  51        argc = parse_options(argc, argv, options, evlist_usage, 0);
  52        if (argc)
  53                usage_with_options(evlist_usage, options);
  54
  55        if (details.event_group && (details.verbose || details.freq)) {
  56                pr_err("--group option is not compatible with other options\n");
  57                usage_with_options(evlist_usage, options);
  58        }
  59
  60        return __cmd_evlist(input_name, &details);
  61}
  62
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.