* Parse & process all the sysfs attributes located under
* the directory specified in 'dir' parameter.
*/
-static int pmu_format_parse(char *dir, struct list_head *head)
+int perf_pmu__format_parse(char *dir, struct list_head *head)
{
struct dirent *evt_ent;
DIR *format_dir;
if (stat(path, &st) < 0)
return 0; /* no error if format does not exist */
- if (pmu_format_parse(path, format))
+ if (perf_pmu__format_parse(path, format))
return -1;
return 0;
"%s/bus/event_source/devices/%s/events", sysfs, name);
if (stat(path, &st) < 0)
- return -1;
+ return 0; /* no error if 'events' does not exist */
if (pmu_aliases_parse(path, head))
return -1;
if (pmu_format(name, &format))
return NULL;
+ if (pmu_aliases(name, &aliases))
+ return NULL;
+
if (pmu_type(name, &type))
return NULL;
pmu->cpus = pmu_cpumask(name);
- pmu_aliases(name, &aliases);
-
INIT_LIST_HEAD(&pmu->format);
INIT_LIST_HEAD(&pmu->aliases);
list_splice(&format, &pmu->format);
return 0;
}
-static int pmu_config(struct list_head *formats, struct perf_event_attr *attr,
- struct list_head *head_terms)
+int perf_pmu__config_terms(struct list_head *formats,
+ struct perf_event_attr *attr,
+ struct list_head *head_terms)
{
struct parse_events__term *term;
struct list_head *head_terms)
{
attr->type = pmu->type;
- return pmu_config(&pmu->format, attr, head_terms);
+ return perf_pmu__config_terms(&pmu->format, attr, head_terms);
}
static struct perf_pmu__alias *pmu_find_alias(struct perf_pmu *pmu,
for (b = from; b <= to; b++)
set_bit(b, bits);
}
-
-/* Simulated format definitions. */
-static struct test_format {
- const char *name;
- const char *value;
-} test_formats[] = {
- { "krava01", "config:0-1,62-63\n", },
- { "krava02", "config:10-17\n", },
- { "krava03", "config:5\n", },
- { "krava11", "config1:0,2,4,6,8,20-28\n", },
- { "krava12", "config1:63\n", },
- { "krava13", "config1:45-47\n", },
- { "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", },
- { "krava22", "config2:8,18,48,58\n", },
- { "krava23", "config2:28-29,38\n", },
-};
-
-#define TEST_FORMATS_CNT (sizeof(test_formats) / sizeof(struct test_format))
-
-/* Simulated users input. */
-static struct parse_events__term test_terms[] = {
- {
- .config = (char *) "krava01",
- .val.num = 15,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
- {
- .config = (char *) "krava02",
- .val.num = 170,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
- {
- .config = (char *) "krava03",
- .val.num = 1,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
- {
- .config = (char *) "krava11",
- .val.num = 27,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
- {
- .config = (char *) "krava12",
- .val.num = 1,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
- {
- .config = (char *) "krava13",
- .val.num = 2,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
- {
- .config = (char *) "krava21",
- .val.num = 119,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
- {
- .config = (char *) "krava22",
- .val.num = 11,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
- {
- .config = (char *) "krava23",
- .val.num = 2,
- .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
- .type_term = PARSE_EVENTS__TERM_TYPE_USER,
- },
-};
-#define TERMS_CNT (sizeof(test_terms) / sizeof(struct parse_events__term))
-
-/*
- * Prepare format directory data, exported by kernel
- * at /sys/bus/event_source/devices/<dev>/format.
- */
-static char *test_format_dir_get(void)
-{
- static char dir[PATH_MAX];
- unsigned int i;
-
- snprintf(dir, PATH_MAX, "/tmp/perf-pmu-test-format-XXXXXX");
- if (!mkdtemp(dir))
- return NULL;
-
- for (i = 0; i < TEST_FORMATS_CNT; i++) {
- static char name[PATH_MAX];
- struct test_format *format = &test_formats[i];
- FILE *file;
-
- snprintf(name, PATH_MAX, "%s/%s", dir, format->name);
-
- file = fopen(name, "w");
- if (!file)
- return NULL;
-
- if (1 != fwrite(format->value, strlen(format->value), 1, file))
- break;
-
- fclose(file);
- }
-
- return dir;
-}
-
-/* Cleanup format directory. */
-static int test_format_dir_put(char *dir)
-{
- char buf[PATH_MAX];
- snprintf(buf, PATH_MAX, "rm -f %s/*\n", dir);
- if (system(buf))
- return -1;
-
- snprintf(buf, PATH_MAX, "rmdir %s\n", dir);
- return system(buf);
-}
-
-static struct list_head *test_terms_list(void)
-{
- static LIST_HEAD(terms);
- unsigned int i;
-
- for (i = 0; i < TERMS_CNT; i++)
- list_add_tail(&test_terms[i].list, &terms);
-
- return &terms;
-}
-
-#undef TERMS_CNT
-
-int perf_pmu__test(void)
-{
- char *format = test_format_dir_get();
- LIST_HEAD(formats);
- struct list_head *terms = test_terms_list();
- int ret;
-
- if (!format)
- return -EINVAL;
-
- do {
- struct perf_event_attr attr;
-
- memset(&attr, 0, sizeof(attr));
-
- ret = pmu_format_parse(format, &formats);
- if (ret)
- break;
-
- ret = pmu_config(&formats, &attr, terms);
- if (ret)
- break;
-
- ret = -EINVAL;
-
- if (attr.config != 0xc00000000002a823)
- break;
- if (attr.config1 != 0x8000400000000145)
- break;
- if (attr.config2 != 0x0400000020041d07)
- break;
-
- ret = 0;
- } while (0);
-
- test_format_dir_put(format);
- return ret;
-}
projects / mirror_ubuntu-jammy-kernel.git / blobdiff