LXR linux/tools/perf/builtin-evlist.c

   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#include "util/data.h"
  18#include "util/debug.h"
  19
  20static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
  21{
  22        struct perf_session *session;
  23        struct perf_evsel *pos;
  24        struct perf_data_file file = {
  25                .path = file_name,
  26                .mode = PERF_DATA_MODE_READ,
  27                .force = details->force,
  28        };
  29
  30        session = perf_session__new(&file, 0, NULL);
  31        if (session == NULL)
  32                return -1;
  33
  34        evlist__for_each(session->evlist, pos)
  35                perf_evsel__fprintf(pos, details, stdout);
  36
  37        perf_session__delete(session);
  38        return 0;
  39}
  40
  41int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
  42{
  43        struct perf_attr_details details = { .verbose = false, };
  44        const struct option options[] = {
  45        OPT_STRING('i', "input", &input_name, "file", "Input file name"),
  46        OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
  47        OPT_BOOLEAN('v', "verbose", &details.verbose,
  48                    "Show all event attr details"),
  49        OPT_BOOLEAN('g', "group", &details.event_group,
  50                    "Show event group information"),
  51        OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
  52        OPT_END()
  53        };
  54        const char * const evlist_usage[] = {
  55                "perf evlist [<options>]",
  56                NULL
  57        };
  58
  59        argc = parse_options(argc, argv, options, evlist_usage, 0);
  60        if (argc)
  61                usage_with_options(evlist_usage, options);
  62
  63        if (details.event_group && (details.verbose || details.freq)) {
  64                pr_err("--group option is not compatible with other options\n");
  65                usage_with_options(evlist_usage, options);
  66        }
  67
  68        return __cmd_evlist(input_name, &details);
  69}
  70