tools/perf/tests/evsel-roundtrip-name.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include "evlist.h"
   3 #include "evsel.h"
   4 #include "parse-events.h"
   5 #include "tests.h"
   6 #include "debug.h"
   7 #include <linux/kernel.h>
   8
   9 static int perf_evsel__roundtrip_cache_name_test(void)
  10 {
  11         int ret = TEST_OK;
  12
  13         for (int type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
  14                 for (int op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
  15                         /* skip invalid cache type */
  16                         if (!evsel__is_cache_op_valid(type, op))
  17                                 continue;
  18
  19                         for (int res = 0; res < PERF_COUNT_HW_CACHE_RESULT_MAX; res++) {
  20                                 char name[128];
  21                                 struct evlist *evlist = evlist__new();
  22                                 struct evsel *evsel;
  23                                 int err;
  24
  25                                 if (evlist == NULL) {
  26                                         pr_debug("Failed to alloc evlist");
  27                                         return TEST_FAIL;
  28                                 }
  29                                 __evsel__hw_cache_type_op_res_name(type, op, res,
  30                                                                 name, sizeof(name));
  31
  32                                 err = parse_event(evlist, name);
  33                                 if (err) {
  34                                         pr_debug("Failure to parse cache event '%s' possibly as PMUs don't support it",
  35                                                 name);
  36                                         evlist__delete(evlist);
  37                                         continue;
  38                                 }
  39                                 evlist__for_each_entry(evlist, evsel) {
  40                                         if (!evsel__name_is(evsel, name)) {
  41                                                 pr_debug("%s != %s\n", evsel__name(evsel), name);
  42                                                 ret = TEST_FAIL;
  43                                         }
  44                                 }
  45                                 evlist__delete(evlist);
  46                         }
  47                 }
  48         }
  49         return ret;
  50 }
  51
  52 static int perf_evsel__name_array_test(const char *const names[], int nr_names)
  53 {
  54         int ret = TEST_OK;
  55
  56         for (int i = 0; i < nr_names; ++i) {
  57                 struct evlist *evlist = evlist__new();
  58                 struct evsel *evsel;
  59                 int err;
  60
  61                 if (evlist == NULL) {
  62                         pr_debug("Failed to alloc evlist");
  63                         return TEST_FAIL;
  64                 }
  65                 err = parse_event(evlist, names[i]);
  66                 if (err) {
  67                         pr_debug("failed to parse event '%s', err %d\n",
  68                                  names[i], err);
  69                         evlist__delete(evlist);
  70                         ret = TEST_FAIL;
  71                         continue;
  72                 }
  73                 evlist__for_each_entry(evlist, evsel) {
  74                         if (!evsel__name_is(evsel, names[i])) {
  75                                 pr_debug("%s != %s\n", evsel__name(evsel), names[i]);
  76                                 ret = TEST_FAIL;
  77                         }
  78                 }
  79                 evlist__delete(evlist);
  80         }
  81         return ret;
  82 }
  83
  84 static int test__perf_evsel__roundtrip_name_test(struct test_suite *test __maybe_unused,
  85                                                  int subtest __maybe_unused)
  86 {
  87         int err = 0, ret = TEST_OK;
  88
  89         err = perf_evsel__name_array_test(evsel__hw_names, PERF_COUNT_HW_MAX);
  90         if (err)
  91                 ret = err;
  92
  93         err = perf_evsel__name_array_test(evsel__sw_names, PERF_COUNT_SW_DUMMY + 1);
  94         if (err)
  95                 ret = err;
  96
  97         err = perf_evsel__roundtrip_cache_name_test();
  98         if (err)
  99                 ret = err;
 100
 101         return ret;
 102 }
 103
 104 DEFINE_SUITE("Roundtrip evsel->name", perf_evsel__roundtrip_name_test);