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Diffstat (limited to 'tools/perf/util/pmu.c')
-rw-r--r--tools/perf/util/pmu.c109
1 files changed, 71 insertions, 38 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index dc6ccaa4e927..82a654dec666 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -94,32 +94,10 @@ static int pmu_format(const char *name, struct list_head *format)
return 0;
}
-static int perf_pmu__parse_scale(struct perf_pmu_alias *alias, char *dir, char *name)
+static int convert_scale(const char *scale, char **end, double *sval)
{
- struct stat st;
- ssize_t sret;
- char scale[128];
- int fd, ret = -1;
- char path[PATH_MAX];
char *lc;
-
- snprintf(path, PATH_MAX, "%s/%s.scale", dir, name);
-
- fd = open(path, O_RDONLY);
- if (fd == -1)
- return -1;
-
- if (fstat(fd, &st) < 0)
- goto error;
-
- sret = read(fd, scale, sizeof(scale)-1);
- if (sret < 0)
- goto error;
-
- if (scale[sret - 1] == '\n')
- scale[sret - 1] = '\0';
- else
- scale[sret] = '\0';
+ int ret = 0;
/*
* save current locale
@@ -134,7 +112,7 @@ static int perf_pmu__parse_scale(struct perf_pmu_alias *alias, char *dir, char *
lc = strdup(lc);
if (!lc) {
ret = -ENOMEM;
- goto error;
+ goto out;
}
/*
@@ -144,14 +122,42 @@ static int perf_pmu__parse_scale(struct perf_pmu_alias *alias, char *dir, char *
*/
setlocale(LC_NUMERIC, "C");
- alias->scale = strtod(scale, NULL);
+ *sval = strtod(scale, end);
+out:
/* restore locale */
setlocale(LC_NUMERIC, lc);
-
free(lc);
+ return ret;
+}
+
+static int perf_pmu__parse_scale(struct perf_pmu_alias *alias, char *dir, char *name)
+{
+ struct stat st;
+ ssize_t sret;
+ char scale[128];
+ int fd, ret = -1;
+ char path[PATH_MAX];
+
+ snprintf(path, PATH_MAX, "%s/%s.scale", dir, name);
+
+ fd = open(path, O_RDONLY);
+ if (fd == -1)
+ return -1;
+
+ if (fstat(fd, &st) < 0)
+ goto error;
+
+ sret = read(fd, scale, sizeof(scale)-1);
+ if (sret < 0)
+ goto error;
- ret = 0;
+ if (scale[sret - 1] == '\n')
+ scale[sret - 1] = '\0';
+ else
+ scale[sret] = '\0';
+
+ ret = convert_scale(scale, NULL, &alias->scale);
error:
close(fd);
return ret;
@@ -223,11 +229,13 @@ static int perf_pmu__parse_snapshot(struct perf_pmu_alias *alias,
}
static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
- char *desc, char *val, char *long_desc,
- char *topic)
+ char *desc, char *val,
+ char *long_desc, char *topic,
+ char *unit, char *perpkg)
{
struct perf_pmu_alias *alias;
int ret;
+ int num;
alias = malloc(sizeof(*alias));
if (!alias)
@@ -261,6 +269,13 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
alias->long_desc = long_desc ? strdup(long_desc) :
desc ? strdup(desc) : NULL;
alias->topic = topic ? strdup(topic) : NULL;
+ if (unit) {
+ if (convert_scale(unit, &unit, &alias->scale) < 0)
+ return -1;
+ snprintf(alias->unit, sizeof(alias->unit), "%s", unit);
+ }
+ alias->per_pkg = perpkg && sscanf(perpkg, "%d", &num) == 1 && num == 1;
+ alias->str = strdup(val);
list_add_tail(&alias->list, list);
@@ -278,7 +293,8 @@ static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FI
buf[ret] = 0;
- return __perf_pmu__new_alias(list, dir, name, NULL, buf, NULL, NULL);
+ return __perf_pmu__new_alias(list, dir, name, NULL, buf, NULL, NULL, NULL,
+ NULL);
}
static inline bool pmu_alias_info_file(char *name)
@@ -498,7 +514,7 @@ char * __weak get_cpuid_str(void)
* to the current running CPU. Then, add all PMU events from that table
* as aliases.
*/
-static void pmu_add_cpu_aliases(struct list_head *head)
+static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
{
int i;
struct pmu_events_map *map;
@@ -534,14 +550,21 @@ static void pmu_add_cpu_aliases(struct list_head *head)
*/
i = 0;
while (1) {
+ const char *pname;
+
pe = &map->table[i++];
if (!pe->name)
break;
+ pname = pe->pmu ? pe->pmu : "cpu";
+ if (strncmp(pname, name, strlen(pname)))
+ continue;
+
/* need type casts to override 'const' */
__perf_pmu__new_alias(head, NULL, (char *)pe->name,
(char *)pe->desc, (char *)pe->event,
- (char *)pe->long_desc, (char *)pe->topic);
+ (char *)pe->long_desc, (char *)pe->topic,
+ (char *)pe->unit, (char *)pe->perpkg);
}
out:
@@ -569,15 +592,16 @@ static struct perf_pmu *pmu_lookup(const char *name)
if (pmu_format(name, &format))
return NULL;
- if (pmu_aliases(name, &aliases))
+ /*
+ * Check the type first to avoid unnecessary work.
+ */
+ if (pmu_type(name, &type))
return NULL;
- if (!strcmp(name, "cpu"))
- pmu_add_cpu_aliases(&aliases);
-
- if (pmu_type(name, &type))
+ if (pmu_aliases(name, &aliases))
return NULL;
+ pmu_add_cpu_aliases(&aliases, name);
pmu = zalloc(sizeof(*pmu));
if (!pmu)
return NULL;
@@ -1065,6 +1089,8 @@ struct sevent {
char *name;
char *desc;
char *topic;
+ char *str;
+ char *pmu;
};
static int cmp_sevent(const void *a, const void *b)
@@ -1161,6 +1187,8 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
aliases[j].desc = long_desc ? alias->long_desc :
alias->desc;
aliases[j].topic = alias->topic;
+ aliases[j].str = alias->str;
+ aliases[j].pmu = pmu->name;
j++;
}
if (pmu->selectable &&
@@ -1175,6 +1203,9 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
len = j;
qsort(aliases, len, sizeof(struct sevent), cmp_sevent);
for (j = 0; j < len; j++) {
+ /* Skip duplicates */
+ if (j > 0 && !strcmp(aliases[j].name, aliases[j - 1].name))
+ continue;
if (name_only) {
printf("%s ", aliases[j].name);
continue;
@@ -1192,6 +1223,8 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
printf("%*s", 8, "[");
wordwrap(aliases[j].desc, 8, columns, 0);
printf("]\n");
+ if (verbose)
+ printf("%*s%s/%s/\n", 8, "", aliases[j].pmu, aliases[j].str);
} else
printf(" %-50s [Kernel PMU event]\n", aliases[j].name);
printed++;
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-19 22:22:16 +0000