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Linux/tools/perf/tests/event_update.c

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  1 // SPDX-License-Identifier: GPL-2.0
  2 #include <linux/compiler.h>
  3 #include <perf/cpumap.h>
  4 #include <string.h>
  5 #include "cpumap.h"
  6 #include "evlist.h"
  7 #include "evsel.h"
  8 #include "header.h"
  9 #include "machine.h"
 10 #include "util/synthetic-events.h"
 11 #include "tool.h"
 12 #include "tests.h"
 13 #include "debug.h"
 14 
 15 static int process_event_unit(struct perf_tool *tool __maybe_unused,
 16                               union perf_event *event,
 17                               struct perf_sample *sample __maybe_unused,
 18                               struct machine *machine __maybe_unused)
 19 {
 20         struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
 21 
 22         TEST_ASSERT_VAL("wrong id", ev->id == 123);
 23         TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__UNIT);
 24         TEST_ASSERT_VAL("wrong unit", !strcmp(ev->data, "KRAVA"));
 25         return 0;
 26 }
 27 
 28 static int process_event_scale(struct perf_tool *tool __maybe_unused,
 29                                union perf_event *event,
 30                                struct perf_sample *sample __maybe_unused,
 31                                struct machine *machine __maybe_unused)
 32 {
 33         struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
 34         struct perf_record_event_update_scale *ev_data;
 35 
 36         ev_data = (struct perf_record_event_update_scale *)ev->data;
 37 
 38         TEST_ASSERT_VAL("wrong id", ev->id == 123);
 39         TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__SCALE);
 40         TEST_ASSERT_VAL("wrong scale", ev_data->scale == 0.123);
 41         return 0;
 42 }
 43 
 44 struct event_name {
 45         struct perf_tool tool;
 46         const char *name;
 47 };
 48 
 49 static int process_event_name(struct perf_tool *tool,
 50                               union perf_event *event,
 51                               struct perf_sample *sample __maybe_unused,
 52                               struct machine *machine __maybe_unused)
 53 {
 54         struct event_name *tmp = container_of(tool, struct event_name, tool);
 55         struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
 56 
 57         TEST_ASSERT_VAL("wrong id", ev->id == 123);
 58         TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__NAME);
 59         TEST_ASSERT_VAL("wrong name", !strcmp(ev->data, tmp->name));
 60         return 0;
 61 }
 62 
 63 static int process_event_cpus(struct perf_tool *tool __maybe_unused,
 64                               union perf_event *event,
 65                               struct perf_sample *sample __maybe_unused,
 66                               struct machine *machine __maybe_unused)
 67 {
 68         struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
 69         struct perf_record_event_update_cpus *ev_data;
 70         struct perf_cpu_map *map;
 71 
 72         ev_data = (struct perf_record_event_update_cpus *) ev->data;
 73 
 74         map = cpu_map__new_data(&ev_data->cpus);
 75 
 76         TEST_ASSERT_VAL("wrong id", ev->id == 123);
 77         TEST_ASSERT_VAL("wrong type", ev->type == PERF_EVENT_UPDATE__CPUS);
 78         TEST_ASSERT_VAL("wrong cpus", map->nr == 3);
 79         TEST_ASSERT_VAL("wrong cpus", map->map[0] == 1);
 80         TEST_ASSERT_VAL("wrong cpus", map->map[1] == 2);
 81         TEST_ASSERT_VAL("wrong cpus", map->map[2] == 3);
 82         perf_cpu_map__put(map);
 83         return 0;
 84 }
 85 
 86 static int test__event_update(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
 87 {
 88         struct evsel *evsel;
 89         struct event_name tmp;
 90         struct evlist *evlist = evlist__new_default();
 91 
 92         TEST_ASSERT_VAL("failed to get evlist", evlist);
 93 
 94         evsel = evlist__first(evlist);
 95 
 96         TEST_ASSERT_VAL("failed to allocate ids",
 97                         !perf_evsel__alloc_id(&evsel->core, 1, 1));
 98 
 99         perf_evlist__id_add(&evlist->core, &evsel->core, 0, 0, 123);
100 
101         free((char *)evsel->unit);
102         evsel->unit = strdup("KRAVA");
103 
104         TEST_ASSERT_VAL("failed to synthesize attr update unit",
105                         !perf_event__synthesize_event_update_unit(NULL, evsel, process_event_unit));
106 
107         evsel->scale = 0.123;
108 
109         TEST_ASSERT_VAL("failed to synthesize attr update scale",
110                         !perf_event__synthesize_event_update_scale(NULL, evsel, process_event_scale));
111 
112         tmp.name = evsel__name(evsel);
113 
114         TEST_ASSERT_VAL("failed to synthesize attr update name",
115                         !perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name));
116 
117         evsel->core.own_cpus = perf_cpu_map__new("1,2,3");
118 
119         TEST_ASSERT_VAL("failed to synthesize attr update cpus",
120                         !perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus));
121 
122         evlist__delete(evlist);
123         return 0;
124 }
125 
126 DEFINE_SUITE("Synthesize attr update", event_update);
127 

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