diff options
Diffstat (limited to 'tools/perf/tests/pmu.c')
-rw-r--r-- | tools/perf/tests/pmu.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/tools/perf/tests/pmu.c b/tools/perf/tests/pmu.c new file mode 100644 index 000000000000..a5f379863b8f --- /dev/null +++ b/tools/perf/tests/pmu.c | |||
@@ -0,0 +1,178 @@ | |||
1 | #include "parse-events.h" | ||
2 | #include "pmu.h" | ||
3 | #include "util.h" | ||
4 | #include "tests.h" | ||
5 | |||
6 | /* Simulated format definitions. */ | ||
7 | static struct test_format { | ||
8 | const char *name; | ||
9 | const char *value; | ||
10 | } test_formats[] = { | ||
11 | { "krava01", "config:0-1,62-63\n", }, | ||
12 | { "krava02", "config:10-17\n", }, | ||
13 | { "krava03", "config:5\n", }, | ||
14 | { "krava11", "config1:0,2,4,6,8,20-28\n", }, | ||
15 | { "krava12", "config1:63\n", }, | ||
16 | { "krava13", "config1:45-47\n", }, | ||
17 | { "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", }, | ||
18 | { "krava22", "config2:8,18,48,58\n", }, | ||
19 | { "krava23", "config2:28-29,38\n", }, | ||
20 | }; | ||
21 | |||
22 | #define TEST_FORMATS_CNT (sizeof(test_formats) / sizeof(struct test_format)) | ||
23 | |||
24 | /* Simulated users input. */ | ||
25 | static struct parse_events__term test_terms[] = { | ||
26 | { | ||
27 | .config = (char *) "krava01", | ||
28 | .val.num = 15, | ||
29 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
30 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
31 | }, | ||
32 | { | ||
33 | .config = (char *) "krava02", | ||
34 | .val.num = 170, | ||
35 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
36 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
37 | }, | ||
38 | { | ||
39 | .config = (char *) "krava03", | ||
40 | .val.num = 1, | ||
41 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
42 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
43 | }, | ||
44 | { | ||
45 | .config = (char *) "krava11", | ||
46 | .val.num = 27, | ||
47 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
48 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
49 | }, | ||
50 | { | ||
51 | .config = (char *) "krava12", | ||
52 | .val.num = 1, | ||
53 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
54 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
55 | }, | ||
56 | { | ||
57 | .config = (char *) "krava13", | ||
58 | .val.num = 2, | ||
59 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
60 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
61 | }, | ||
62 | { | ||
63 | .config = (char *) "krava21", | ||
64 | .val.num = 119, | ||
65 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
66 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
67 | }, | ||
68 | { | ||
69 | .config = (char *) "krava22", | ||
70 | .val.num = 11, | ||
71 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
72 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
73 | }, | ||
74 | { | ||
75 | .config = (char *) "krava23", | ||
76 | .val.num = 2, | ||
77 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | ||
78 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | ||
79 | }, | ||
80 | }; | ||
81 | #define TERMS_CNT (sizeof(test_terms) / sizeof(struct parse_events__term)) | ||
82 | |||
83 | /* | ||
84 | * Prepare format directory data, exported by kernel | ||
85 | * at /sys/bus/event_source/devices/<dev>/format. | ||
86 | */ | ||
87 | static char *test_format_dir_get(void) | ||
88 | { | ||
89 | static char dir[PATH_MAX]; | ||
90 | unsigned int i; | ||
91 | |||
92 | snprintf(dir, PATH_MAX, "/tmp/perf-pmu-test-format-XXXXXX"); | ||
93 | if (!mkdtemp(dir)) | ||
94 | return NULL; | ||
95 | |||
96 | for (i = 0; i < TEST_FORMATS_CNT; i++) { | ||
97 | static char name[PATH_MAX]; | ||
98 | struct test_format *format = &test_formats[i]; | ||
99 | FILE *file; | ||
100 | |||
101 | snprintf(name, PATH_MAX, "%s/%s", dir, format->name); | ||
102 | |||
103 | file = fopen(name, "w"); | ||
104 | if (!file) | ||
105 | return NULL; | ||
106 | |||
107 | if (1 != fwrite(format->value, strlen(format->value), 1, file)) | ||
108 | break; | ||
109 | |||
110 | fclose(file); | ||
111 | } | ||
112 | |||
113 | return dir; | ||
114 | } | ||
115 | |||
116 | /* Cleanup format directory. */ | ||
117 | static int test_format_dir_put(char *dir) | ||
118 | { | ||
119 | char buf[PATH_MAX]; | ||
120 | snprintf(buf, PATH_MAX, "rm -f %s/*\n", dir); | ||
121 | if (system(buf)) | ||
122 | return -1; | ||
123 | |||
124 | snprintf(buf, PATH_MAX, "rmdir %s\n", dir); | ||
125 | return system(buf); | ||
126 | } | ||
127 | |||
128 | static struct list_head *test_terms_list(void) | ||
129 | { | ||
130 | static LIST_HEAD(terms); | ||
131 | unsigned int i; | ||
132 | |||
133 | for (i = 0; i < TERMS_CNT; i++) | ||
134 | list_add_tail(&test_terms[i].list, &terms); | ||
135 | |||
136 | return &terms; | ||
137 | } | ||
138 | |||
139 | #undef TERMS_CNT | ||
140 | |||
141 | int test__pmu(void) | ||
142 | { | ||
143 | char *format = test_format_dir_get(); | ||
144 | LIST_HEAD(formats); | ||
145 | struct list_head *terms = test_terms_list(); | ||
146 | int ret; | ||
147 | |||
148 | if (!format) | ||
149 | return -EINVAL; | ||
150 | |||
151 | do { | ||
152 | struct perf_event_attr attr; | ||
153 | |||
154 | memset(&attr, 0, sizeof(attr)); | ||
155 | |||
156 | ret = perf_pmu__format_parse(format, &formats); | ||
157 | if (ret) | ||
158 | break; | ||
159 | |||
160 | ret = perf_pmu__config_terms(&formats, &attr, terms); | ||
161 | if (ret) | ||
162 | break; | ||
163 | |||
164 | ret = -EINVAL; | ||
165 | |||
166 | if (attr.config != 0xc00000000002a823) | ||
167 | break; | ||
168 | if (attr.config1 != 0x8000400000000145) | ||
169 | break; | ||
170 | if (attr.config2 != 0x0400000020041d07) | ||
171 | break; | ||
172 | |||
173 | ret = 0; | ||
174 | } while (0); | ||
175 | |||
176 | test_format_dir_put(format); | ||
177 | return ret; | ||
178 | } | ||