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-rw-r--r--tools/perf/util/env.c8
-rw-r--r--tools/perf/util/header.c8
-rw-r--r--tools/perf/util/mem-events.c16
-rw-r--r--tools/perf/util/mem-events.h2
-rw-r--r--tools/perf/util/parse-events.c7
-rw-r--r--tools/perf/util/parse-events.h2
-rw-r--r--tools/perf/util/parse-events.y2
-rw-r--r--tools/perf/util/pmu.c16
-rw-r--r--tools/perf/util/pmu.h8
9 files changed, 29 insertions, 40 deletions
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 9eabf3ec56e9..a164164001fb 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -324,11 +324,9 @@ int perf_env__read_pmu_mappings(struct perf_env *env)
u32 pmu_num = 0;
struct strbuf sb;
- while ((pmu = perf_pmus__scan(pmu))) {
- if (!pmu->name)
- continue;
+ while ((pmu = perf_pmus__scan(pmu)))
pmu_num++;
- }
+
if (!pmu_num) {
pr_debug("pmu mappings not available\n");
return -ENOENT;
@@ -339,8 +337,6 @@ int perf_env__read_pmu_mappings(struct perf_env *env)
return -ENOMEM;
while ((pmu = perf_pmus__scan(pmu))) {
- if (!pmu->name)
- continue;
if (strbuf_addf(&sb, "%u:%s", pmu->type, pmu->name) < 0)
goto error;
/* include a NULL character at the end */
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 13c71d28e0eb..9f35d86a3351 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -746,20 +746,14 @@ static int write_pmu_mappings(struct feat_fd *ff,
* Do a first pass to count number of pmu to avoid lseek so this
* works in pipe mode as well.
*/
- while ((pmu = perf_pmus__scan(pmu))) {
- if (!pmu->name)
- continue;
+ while ((pmu = perf_pmus__scan(pmu)))
pmu_num++;
- }
ret = do_write(ff, &pmu_num, sizeof(pmu_num));
if (ret < 0)
return ret;
while ((pmu = perf_pmus__scan(pmu))) {
- if (!pmu->name)
- continue;
-
ret = do_write(ff, &pmu->type, sizeof(pmu->type));
if (ret < 0)
return ret;
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index c07fe3a90722..39ffe8ceb380 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -37,7 +37,7 @@ struct perf_mem_event * __weak perf_mem_events__ptr(int i)
return &perf_mem_events[i];
}
-char * __weak perf_mem_events__name(int i, char *pmu_name __maybe_unused)
+const char * __weak perf_mem_events__name(int i, const char *pmu_name __maybe_unused)
{
struct perf_mem_event *e = perf_mem_events__ptr(i);
@@ -53,7 +53,7 @@ char * __weak perf_mem_events__name(int i, char *pmu_name __maybe_unused)
return mem_loads_name;
}
- return (char *)e->name;
+ return e->name;
}
__weak bool is_mem_loads_aux_event(struct evsel *leader __maybe_unused)
@@ -186,7 +186,6 @@ int perf_mem_events__record_args(const char **rec_argv, int *argv_nr,
int i = *argv_nr, k = 0;
struct perf_mem_event *e;
struct perf_pmu *pmu;
- char *s;
for (int j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
e = perf_mem_events__ptr(j);
@@ -209,15 +208,16 @@ int perf_mem_events__record_args(const char **rec_argv, int *argv_nr,
}
while ((pmu = perf_pmus__scan(pmu)) != NULL) {
+ const char *s = perf_mem_events__name(j, pmu->name);
+
rec_argv[i++] = "-e";
- s = perf_mem_events__name(j, pmu->name);
if (s) {
- s = strdup(s);
- if (!s)
+ char *copy = strdup(s);
+ if (!copy)
return -1;
- rec_argv[i++] = s;
- rec_tmp[k++] = s;
+ rec_argv[i++] = copy;
+ rec_tmp[k++] = copy;
}
}
}
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index 12372309d60e..b40ad6ea93fc 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -38,7 +38,7 @@ extern unsigned int perf_mem_events__loads_ldlat;
int perf_mem_events__parse(const char *str);
int perf_mem_events__init(void);
-char *perf_mem_events__name(int i, char *pmu_name);
+const char *perf_mem_events__name(int i, const char *pmu_name);
struct perf_mem_event *perf_mem_events__ptr(int i);
bool is_mem_loads_aux_event(struct evsel *leader);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index c71e135d7335..621bdd157a0f 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -262,7 +262,7 @@ __add_event(struct list_head *list, int *idx,
evsel->core.is_pmu_core = pmu ? pmu->is_core : false;
evsel->auto_merge_stats = auto_merge_stats;
evsel->pmu = pmu;
- evsel->pmu_name = pmu && pmu->name ? strdup(pmu->name) : NULL;
+ evsel->pmu_name = pmu ? strdup(pmu->name) : NULL;
if (name)
evsel->name = strdup(name);
@@ -437,9 +437,6 @@ bool parse_events__filter_pmu(const struct parse_events_state *parse_state,
if (parse_state->pmu_filter == NULL)
return false;
- if (pmu->name == NULL)
- return true;
-
return strcmp(parse_state->pmu_filter, pmu->name) != 0;
}
@@ -1292,7 +1289,7 @@ static bool config_term_percore(struct list_head *config_terms)
}
int parse_events_add_pmu(struct parse_events_state *parse_state,
- struct list_head *list, char *name,
+ struct list_head *list, const char *name,
struct list_head *head_config,
bool auto_merge_stats, void *loc_)
{
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index c7f779420723..c4e8d8e94b28 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -176,7 +176,7 @@ int parse_events_add_breakpoint(struct parse_events_state *parse_state,
u64 addr, char *type, u64 len,
struct list_head *head_config);
int parse_events_add_pmu(struct parse_events_state *parse_state,
- struct list_head *list, char *name,
+ struct list_head *list, const char *name,
struct list_head *head_config,
bool auto_merge_stats, void *loc);
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 00da1f8c0baf..3a9d4e2513b5 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -307,7 +307,7 @@ PE_NAME opt_pmu_config
}
while ((pmu = perf_pmus__scan(pmu)) != NULL) {
- char *name = pmu->name;
+ const char *name = pmu->name;
if (parse_events__filter_pmu(parse_state, pmu))
continue;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index bb2ca29cd7bd..a96ccc5c3b51 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -29,7 +29,9 @@
#include "fncache.h"
#include "util/evsel_config.h"
-struct perf_pmu perf_pmu__fake;
+struct perf_pmu perf_pmu__fake = {
+ .name = "fake",
+};
#define UNIT_MAX_LEN 31 /* max length for event unit name */
@@ -967,13 +969,13 @@ perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
return NULL;
}
-char * __weak
+const char * __weak
pmu_find_real_name(const char *name)
{
- return (char *)name;
+ return name;
}
-char * __weak
+const char * __weak
pmu_find_alias_name(const char *name __maybe_unused)
{
return NULL;
@@ -991,8 +993,8 @@ struct perf_pmu *perf_pmu__lookup(struct list_head *pmus, int dirfd, const char
{
struct perf_pmu *pmu;
__u32 type;
- char *name = pmu_find_real_name(lookup_name);
- char *alias_name;
+ const char *name = pmu_find_real_name(lookup_name);
+ const char *alias_name;
pmu = zalloc(sizeof(*pmu));
if (!pmu)
@@ -1974,7 +1976,7 @@ void perf_pmu__warn_invalid_config(struct perf_pmu *pmu, __u64 config,
name ?: "N/A", buf, config_name, config);
}
-int perf_pmu__match(char *pattern, char *name, char *tok)
+int perf_pmu__match(const char *pattern, const char *name, const char *tok)
{
if (!name)
return -1;
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index bae0de3ed7a5..e90169ab3dc2 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -39,7 +39,7 @@ struct perf_pmu_caps {
*/
struct perf_pmu {
/** @name: The name of the PMU such as "cpu". */
- char *name;
+ const char *name;
/**
* @alias_name: Optional alternate name for the PMU determined in
* architecture specific code.
@@ -249,10 +249,10 @@ void perf_pmu__warn_invalid_config(struct perf_pmu *pmu, __u64 config,
const char *config_name);
void perf_pmu__warn_invalid_formats(struct perf_pmu *pmu);
-int perf_pmu__match(char *pattern, char *name, char *tok);
+int perf_pmu__match(const char *pattern, const char *name, const char *tok);
-char *pmu_find_real_name(const char *name);
-char *pmu_find_alias_name(const char *name);
+const char *pmu_find_real_name(const char *name);
+const char *pmu_find_alias_name(const char *name);
double perf_pmu__cpu_slots_per_cycle(void);
int perf_pmu__event_source_devices_scnprintf(char *pathname, size_t size);
int perf_pmu__pathname_scnprintf(char *buf, size_t size,
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-03 20:34:18 +0300