text: // SPDX-License-Identifier: GPL-2.0
  #include <linux/compiler.h>
  #include <perf/cpumap.h>
  #include <string.h>
  #include "cpumap.h"
  #include "evlist.h"
  #include "evsel.h"
  #include "header.h"
  #include "machine.h"
  #include "util/synthetic-events.h"
  #include "tool.h"
  #include "tests.h"
  #include "debug.h"
  
  static int process_event_unit(struct perf_tool *tool __maybe_unused,
  			      union perf_event *event,
  			      struct perf_sample *sample __maybe_unused,
  			      struct machine *machine __maybe_unused)
  {
  	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
  
  	TEST_ASSERT_VAL("wrong id", ev->id == 123);
  	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__UNIT);
  	TEST_ASSERT_VAL("wrong unit", !strcmp(ev->data, "KRAVA"));
  	return 0;
  }
  
  static int process_event_scale(struct perf_tool *tool __maybe_unused,
  			       union perf_event *event,
  			       struct perf_sample *sample __maybe_unused,
  			       struct machine *machine __maybe_unused)
  {
  	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
  	struct perf_record_event_update_scale *ev_data;
  
  	ev_data = (struct perf_record_event_update_scale *)ev->data;
  
  	TEST_ASSERT_VAL("wrong id", ev->id == 123);
  	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__SCALE);
  	TEST_ASSERT_VAL("wrong scale", ev_data->scale == 0.123);
  	return 0;
  }
  
  struct event_name {
  	struct perf_tool tool;
  	const char *name;
  };
  
  static int process_event_name(struct perf_tool *tool,
  			      union perf_event *event,
  			      struct perf_sample *sample __maybe_unused,
  			      struct machine *machine __maybe_unused)
  {
  	struct event_name *tmp = container_of(tool, struct event_name, tool);
  	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
  
  	TEST_ASSERT_VAL("wrong id", ev->id == 123);
  	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__NAME);
  	TEST_ASSERT_VAL("wrong name", !strcmp(ev->data, tmp->name));
  	return 0;
  }
  
  static int process_event_cpus(struct perf_tool *tool __maybe_unused,
  			      union perf_event *event,
  			      struct perf_sample *sample __maybe_unused,
  			      struct machine *machine __maybe_unused)
  {
  	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
  	struct perf_record_event_update_cpus *ev_data;
  	struct perf_cpu_map *map;
  
  	ev_data = (struct perf_record_event_update_cpus *) ev->data;
  
  	map = cpu_map__new_data(&ev_data->cpus);
  
  	TEST_ASSERT_VAL("wrong id", ev->id == 123);
  	TEST_ASSERT_VAL("wrong type", ev->type == PERF_EVENT_UPDATE__CPUS);
  	TEST_ASSERT_VAL("wrong cpus", map->nr == 3);
  	TEST_ASSERT_VAL("wrong cpus", map->map[0] == 1);
  	TEST_ASSERT_VAL("wrong cpus", map->map[1] == 2);
  	TEST_ASSERT_VAL("wrong cpus", map->map[2] == 3);
  	perf_cpu_map__put(map);
  	return 0;
  }
  
  int test__event_update(struct test *test __maybe_unused, int subtest __maybe_unused)
  {
  	struct evsel *evsel;
  	struct event_name tmp;
  	struct evlist *evlist = evlist__new_default();
  	char *unit = strdup("KRAVA");
  
  	TEST_ASSERT_VAL("failed to get evlist", evlist);
  
  	evsel = evlist__first(evlist);
  
  	TEST_ASSERT_VAL("failed to allocate ids",
  			!perf_evsel__alloc_id(&evsel->core, 1, 1));
  
  	perf_evlist__id_add(&evlist->core, &evsel->core, 0, 0, 123);
  
  	evsel->unit = unit;
  
  	TEST_ASSERT_VAL("failed to synthesize attr update unit",
  			!perf_event__synthesize_event_update_unit(NULL, evsel, process_event_unit));
  
  	evsel->scale = 0.123;
  
  	TEST_ASSERT_VAL("failed to synthesize attr update scale",
  			!perf_event__synthesize_event_update_scale(NULL, evsel, process_event_scale));
  
  	tmp.name = evsel__name(evsel);
  
  	TEST_ASSERT_VAL("failed to synthesize attr update name",
  			!perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name));
  
  	evsel->core.own_cpus = perf_cpu_map__new("1,2,3");
  
  	TEST_ASSERT_VAL("failed to synthesize attr update cpus",
  			!perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus));
  
  	free(unit);
  	evlist__delete(evlist);
  	return 0;
  }
  