xref: /linux/tools/perf/tests/event_update.c (revision c6fbb759)
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->unit, "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 
35 	TEST_ASSERT_VAL("wrong id", ev->id == 123);
36 	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__SCALE);
37 	TEST_ASSERT_VAL("wrong scale", ev->scale.scale == 0.123);
38 	return 0;
39 }
40 
41 struct event_name {
42 	struct perf_tool tool;
43 	const char *name;
44 };
45 
46 static int process_event_name(struct perf_tool *tool,
47 			      union perf_event *event,
48 			      struct perf_sample *sample __maybe_unused,
49 			      struct machine *machine __maybe_unused)
50 {
51 	struct event_name *tmp = container_of(tool, struct event_name, tool);
52 	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
53 
54 	TEST_ASSERT_VAL("wrong id", ev->id == 123);
55 	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__NAME);
56 	TEST_ASSERT_VAL("wrong name", !strcmp(ev->name, tmp->name));
57 	return 0;
58 }
59 
60 static int process_event_cpus(struct perf_tool *tool __maybe_unused,
61 			      union perf_event *event,
62 			      struct perf_sample *sample __maybe_unused,
63 			      struct machine *machine __maybe_unused)
64 {
65 	struct perf_record_event_update *ev = (struct perf_record_event_update *)event;
66 	struct perf_cpu_map *map;
67 
68 	map = cpu_map__new_data(&ev->cpus.cpus);
69 
70 	TEST_ASSERT_VAL("wrong id", ev->id == 123);
71 	TEST_ASSERT_VAL("wrong type", ev->type == PERF_EVENT_UPDATE__CPUS);
72 	TEST_ASSERT_VAL("wrong cpus", perf_cpu_map__nr(map) == 3);
73 	TEST_ASSERT_VAL("wrong cpus", perf_cpu_map__cpu(map, 0).cpu == 1);
74 	TEST_ASSERT_VAL("wrong cpus", perf_cpu_map__cpu(map, 1).cpu == 2);
75 	TEST_ASSERT_VAL("wrong cpus", perf_cpu_map__cpu(map, 2).cpu == 3);
76 	perf_cpu_map__put(map);
77 	return 0;
78 }
79 
80 static int test__event_update(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
81 {
82 	struct evsel *evsel;
83 	struct event_name tmp;
84 	struct evlist *evlist = evlist__new_default();
85 
86 	TEST_ASSERT_VAL("failed to get evlist", evlist);
87 
88 	evsel = evlist__first(evlist);
89 
90 	TEST_ASSERT_VAL("failed to allocate ids",
91 			!perf_evsel__alloc_id(&evsel->core, 1, 1));
92 
93 	perf_evlist__id_add(&evlist->core, &evsel->core, 0, 0, 123);
94 
95 	free((char *)evsel->unit);
96 	evsel->unit = strdup("KRAVA");
97 
98 	TEST_ASSERT_VAL("failed to synthesize attr update unit",
99 			!perf_event__synthesize_event_update_unit(NULL, evsel, process_event_unit));
100 
101 	evsel->scale = 0.123;
102 
103 	TEST_ASSERT_VAL("failed to synthesize attr update scale",
104 			!perf_event__synthesize_event_update_scale(NULL, evsel, process_event_scale));
105 
106 	tmp.name = evsel__name(evsel);
107 
108 	TEST_ASSERT_VAL("failed to synthesize attr update name",
109 			!perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name));
110 
111 	evsel->core.own_cpus = perf_cpu_map__new("1,2,3");
112 
113 	TEST_ASSERT_VAL("failed to synthesize attr update cpus",
114 			!perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus));
115 
116 	evlist__delete(evlist);
117 	return 0;
118 }
119 
120 DEFINE_SUITE("Synthesize attr update", event_update);
121