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Date: Thu, 7 Oct 2021 09:56:28 -0700
From: Ian Rogers <irogers@...gle.com>
To: Andi Kleen <ak@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>,
Jin Yao <yao.jin@...ux.intel.com>,
Namhyung Kim <namhyung@...nel.org>,
John Garry <john.garry@...wei.com>,
Kajol Jain <kjain@...ux.ibm.com>,
"Paul A . Clarke" <pc@...ibm.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Riccardo Mancini <rickyman7@...il.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Kees Cook <keescook@...omium.org>,
Sami Tolvanen <samitolvanen@...gle.com>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Jacob Keller <jacob.e.keller@...el.com>,
Zhen Lei <thunder.leizhen@...wei.com>,
ToastC <mrtoastcheng@...il.com>,
Joakim Zhang <qiangqing.zhang@....com>,
Felix Fietkau <nbd@....name>,
Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
Song Liu <songliubraving@...com>, Fabian Hemmer <copy@...y.sh>,
Alexander Antonov <alexander.antonov@...ux.intel.com>,
Nicholas Fraser <nfraser@...eweavers.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Denys Zagorui <dzagorui@...co.com>,
Wan Jiabing <wanjiabing@...o.com>,
Thomas Richter <tmricht@...ux.ibm.com>,
Sumanth Korikkar <sumanthk@...ux.ibm.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Changbin Du <changbin.du@...el.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Cc: Stephane Eranian <eranian@...gle.com>,
Ian Rogers <irogers@...gle.com>
Subject: [PATCH 02/21] perf pmu: Add const to pmu_events_map.
The pmu_events_map is generated at compile time and used for lookup. For
testing purposes we need to swap the map being used. Having the
pmu_events_map be non-const is misleading as it may be an out argument.
Make it const and update uses so they work on const too.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/pmu-events/jevents.c | 2 +-
tools/perf/pmu-events/pmu-events.h | 2 +-
tools/perf/tests/expand-cgroup.c | 2 +-
tools/perf/tests/parse-metric.c | 2 +-
tools/perf/tests/pmu-events.c | 18 +++++++++---------
tools/perf/util/metricgroup.c | 20 ++++++++++----------
tools/perf/util/metricgroup.h | 4 ++--
tools/perf/util/pmu.c | 10 +++++-----
tools/perf/util/pmu.h | 6 +++---
tools/perf/util/s390-sample-raw.c | 4 ++--
10 files changed, 35 insertions(+), 35 deletions(-)
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 19497e4f8a86..5624a37d6f93 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -798,7 +798,7 @@ static bool is_sys_dir(char *fname)
static void print_mapping_table_prefix(FILE *outfp)
{
- fprintf(outfp, "struct pmu_events_map pmu_events_map[] = {\n");
+ fprintf(outfp, "const struct pmu_events_map pmu_events_map[] = {\n");
}
static void print_mapping_table_suffix(FILE *outfp)
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index 5c2bf7275c1c..42c6db6bedec 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -53,7 +53,7 @@ struct pmu_sys_events {
* Global table mapping each known CPU for the architecture to its
* table of PMU events.
*/
-extern struct pmu_events_map pmu_events_map[];
+extern const struct pmu_events_map pmu_events_map[];
extern struct pmu_sys_events pmu_sys_event_tables[];
#endif
diff --git a/tools/perf/tests/expand-cgroup.c b/tools/perf/tests/expand-cgroup.c
index 0e46aeb843ce..aaad51aba12f 100644
--- a/tools/perf/tests/expand-cgroup.c
+++ b/tools/perf/tests/expand-cgroup.c
@@ -193,7 +193,7 @@ static int expand_metric_events(void)
.metric_name = NULL,
},
};
- struct pmu_events_map ev_map = {
+ const struct pmu_events_map ev_map = {
.cpuid = "test",
.version = "1",
.type = "core",
diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
index 4f6f4904e852..dfc797ecc750 100644
--- a/tools/perf/tests/parse-metric.c
+++ b/tools/perf/tests/parse-metric.c
@@ -79,7 +79,7 @@ static struct pmu_event pme_test[] = {
}
};
-static struct pmu_events_map map = {
+static const struct pmu_events_map map = {
.cpuid = "test",
.version = "1",
.type = "core",
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index d3534960ed25..8a1fdcd072f5 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -242,9 +242,9 @@ static bool is_same(const char *reference, const char *test)
return !strcmp(reference, test);
}
-static struct pmu_events_map *__test_pmu_get_events_map(void)
+static const struct pmu_events_map *__test_pmu_get_events_map(void)
{
- struct pmu_events_map *map;
+ const struct pmu_events_map *map;
for (map = &pmu_events_map[0]; map->cpuid; map++) {
if (!strcmp(map->cpuid, "testcpu"))
@@ -421,7 +421,7 @@ static int compare_alias_to_test_event(struct perf_pmu_alias *alias,
static int test_pmu_event_table(void)
{
struct pmu_event *sys_event_tables = __test_pmu_get_sys_events_table();
- struct pmu_events_map *map = __test_pmu_get_events_map();
+ const struct pmu_events_map *map = __test_pmu_get_events_map();
struct pmu_event *table;
int map_events = 0, expected_events;
@@ -518,7 +518,7 @@ static int __test_core_pmu_event_aliases(char *pmu_name, int *count)
struct perf_pmu *pmu;
LIST_HEAD(aliases);
int res = 0;
- struct pmu_events_map *map = __test_pmu_get_events_map();
+ const struct pmu_events_map *map = __test_pmu_get_events_map();
struct perf_pmu_alias *a, *tmp;
if (!map)
@@ -571,7 +571,7 @@ static int __test_uncore_pmu_event_aliases(struct perf_pmu_test_pmu *test_pmu)
struct perf_pmu *pmu = &test_pmu->pmu;
const char *pmu_name = pmu->name;
struct perf_pmu_alias *a, *tmp, *alias;
- struct pmu_events_map *map;
+ const struct pmu_events_map *map;
LIST_HEAD(aliases);
int res = 0;
@@ -825,7 +825,7 @@ struct metric {
static int resolve_metric_simple(struct expr_parse_ctx *pctx,
struct list_head *compound_list,
- struct pmu_events_map *map,
+ const struct pmu_events_map *map,
const char *metric_name)
{
struct hashmap_entry *cur, *cur_tmp;
@@ -885,8 +885,8 @@ static int resolve_metric_simple(struct expr_parse_ctx *pctx,
static int test_parsing(void)
{
- struct pmu_events_map *cpus_map = pmu_events_map__find();
- struct pmu_events_map *map;
+ const struct pmu_events_map *cpus_map = pmu_events_map__find();
+ const struct pmu_events_map *map;
struct pmu_event *pe;
int i, j, k;
int ret = 0;
@@ -1027,7 +1027,7 @@ static int metric_parse_fake(const char *str)
*/
static int test_parsing_fake(void)
{
- struct pmu_events_map *map;
+ const struct pmu_events_map *map;
struct pmu_event *pe;
unsigned int i, j;
int err = 0;
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 8ba5370f5f64..74ea0a3540ce 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -623,7 +623,7 @@ static int metricgroup__print_sys_event_iter(struct pmu_event *pe, void *data)
void metricgroup__print(bool metrics, bool metricgroups, char *filter,
bool raw, bool details)
{
- struct pmu_events_map *map = pmu_events_map__find();
+ const struct pmu_events_map *map = pmu_events_map__find();
struct pmu_event *pe;
int i;
struct rblist groups;
@@ -910,7 +910,7 @@ static int __add_metric(struct list_head *metric_list,
match_metric(__pe->metric_name, __metric)))
struct pmu_event *metricgroup__find_metric(const char *metric,
- struct pmu_events_map *map)
+ const struct pmu_events_map *map)
{
struct pmu_event *pe;
int i;
@@ -977,7 +977,7 @@ static int add_metric(struct list_head *metric_list,
static int __resolve_metric(struct metric *m,
bool metric_no_group,
struct list_head *metric_list,
- struct pmu_events_map *map,
+ const struct pmu_events_map *map,
struct expr_ids *ids)
{
struct hashmap_entry *cur;
@@ -1025,7 +1025,7 @@ static int __resolve_metric(struct metric *m,
static int resolve_metric(bool metric_no_group,
struct list_head *metric_list,
- struct pmu_events_map *map,
+ const struct pmu_events_map *map,
struct expr_ids *ids)
{
struct metric *m;
@@ -1099,7 +1099,7 @@ static int metricgroup__add_metric_sys_event_iter(struct pmu_event *pe,
static int metricgroup__add_metric(const char *metric, bool metric_no_group,
struct strbuf *events,
struct list_head *metric_list,
- struct pmu_events_map *map)
+ const struct pmu_events_map *map)
{
struct expr_ids ids = { .cnt = 0, };
struct pmu_event *pe;
@@ -1173,7 +1173,7 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group,
static int metricgroup__add_metric_list(const char *list, bool metric_no_group,
struct strbuf *events,
struct list_head *metric_list,
- struct pmu_events_map *map)
+ const struct pmu_events_map *map)
{
char *llist, *nlist, *p;
int ret = -EINVAL;
@@ -1230,7 +1230,7 @@ static int parse_groups(struct evlist *perf_evlist, const char *str,
bool metric_no_merge,
struct perf_pmu *fake_pmu,
struct rblist *metric_events,
- struct pmu_events_map *map)
+ const struct pmu_events_map *map)
{
struct parse_events_error parse_error;
struct strbuf extra_events;
@@ -1266,14 +1266,14 @@ int metricgroup__parse_groups(const struct option *opt,
struct rblist *metric_events)
{
struct evlist *perf_evlist = *(struct evlist **)opt->value;
- struct pmu_events_map *map = pmu_events_map__find();
+ const struct pmu_events_map *map = pmu_events_map__find();
return parse_groups(perf_evlist, str, metric_no_group,
metric_no_merge, NULL, metric_events, map);
}
int metricgroup__parse_groups_test(struct evlist *evlist,
- struct pmu_events_map *map,
+ const struct pmu_events_map *map,
const char *str,
bool metric_no_group,
bool metric_no_merge,
@@ -1285,7 +1285,7 @@ int metricgroup__parse_groups_test(struct evlist *evlist,
bool metricgroup__has_metric(const char *metric)
{
- struct pmu_events_map *map = pmu_events_map__find();
+ const struct pmu_events_map *map = pmu_events_map__find();
struct pmu_event *pe;
int i;
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index cc4a92492a61..c931596557bf 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -44,9 +44,9 @@ int metricgroup__parse_groups(const struct option *opt,
bool metric_no_merge,
struct rblist *metric_events);
struct pmu_event *metricgroup__find_metric(const char *metric,
- struct pmu_events_map *map);
+ const struct pmu_events_map *map);
int metricgroup__parse_groups_test(struct evlist *evlist,
- struct pmu_events_map *map,
+ const struct pmu_events_map *map,
const char *str,
bool metric_no_group,
bool metric_no_merge,
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index bdabd62170d2..4bcdc595ce5e 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -710,9 +710,9 @@ static char *perf_pmu__getcpuid(struct perf_pmu *pmu)
return cpuid;
}
-struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu)
+const struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu)
{
- struct pmu_events_map *map;
+ const struct pmu_events_map *map;
char *cpuid = perf_pmu__getcpuid(pmu);
int i;
@@ -737,7 +737,7 @@ struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu)
return map;
}
-struct pmu_events_map *__weak pmu_events_map__find(void)
+const struct pmu_events_map *__weak pmu_events_map__find(void)
{
return perf_pmu__find_map(NULL);
}
@@ -824,7 +824,7 @@ bool pmu_uncore_alias_match(const char *pmu_name, const char *name)
* as aliases.
*/
void pmu_add_cpu_aliases_map(struct list_head *head, struct perf_pmu *pmu,
- struct pmu_events_map *map)
+ const struct pmu_events_map *map)
{
int i;
const char *name = pmu->name;
@@ -859,7 +859,7 @@ void pmu_add_cpu_aliases_map(struct list_head *head, struct perf_pmu *pmu,
static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu)
{
- struct pmu_events_map *map;
+ const struct pmu_events_map *map;
map = perf_pmu__find_map(pmu);
if (!map)
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 394898b07fd9..dd5cdde6a3d0 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -120,10 +120,10 @@ int perf_pmu__test(void);
struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
void pmu_add_cpu_aliases_map(struct list_head *head, struct perf_pmu *pmu,
- struct pmu_events_map *map);
+ const struct pmu_events_map *map);
-struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu);
-struct pmu_events_map *pmu_events_map__find(void);
+const struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu);
+const struct pmu_events_map *pmu_events_map__find(void);
bool pmu_uncore_alias_match(const char *pmu_name, const char *name);
void perf_pmu_free_alias(struct perf_pmu_alias *alias);
diff --git a/tools/perf/util/s390-sample-raw.c b/tools/perf/util/s390-sample-raw.c
index 08ec3c3ae0ee..13f33d1ddb78 100644
--- a/tools/perf/util/s390-sample-raw.c
+++ b/tools/perf/util/s390-sample-raw.c
@@ -135,7 +135,7 @@ static int get_counterset_start(int setnr)
* the name of this counter.
* If no match is found a NULL pointer is returned.
*/
-static const char *get_counter_name(int set, int nr, struct pmu_events_map *map)
+static const char *get_counter_name(int set, int nr, const struct pmu_events_map *map)
{
int rc, event_nr, wanted = get_counterset_start(set) + nr;
@@ -159,7 +159,7 @@ static void s390_cpumcfdg_dump(struct perf_sample *sample)
unsigned char *buf = sample->raw_data;
const char *color = PERF_COLOR_BLUE;
struct cf_ctrset_entry *cep, ce;
- struct pmu_events_map *map;
+ const struct pmu_events_map *map;
u64 *p;
map = pmu_events_map__find();
--
2.33.0.882.g93a45727a2-goog
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