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Message-Id: <20211015172132.1162559-14-irogers@google.com>
Date: Fri, 15 Oct 2021 10:21:24 -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,
Andrew Kilroy <andrew.kilroy@....com>
Cc: Stephane Eranian <eranian@...gle.com>,
Ian Rogers <irogers@...gle.com>
Subject: [PATCH v2 13/21] perf parse-events: Add const to evsel name
The evsel name is strdup-ed before assignment and so can be const.
A later change will add another similar string. Using const makes it
clearer that these are not out arguments.
Acked-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/util/parse-events-hybrid.c | 15 +++++++++------
tools/perf/util/parse-events-hybrid.h | 6 ++++--
tools/perf/util/parse-events.c | 15 ++++++++-------
tools/perf/util/parse-events.h | 7 ++++---
tools/perf/util/pmu.c | 2 +-
tools/perf/util/pmu.h | 2 +-
6 files changed, 27 insertions(+), 20 deletions(-)
diff --git a/tools/perf/util/parse-events-hybrid.c b/tools/perf/util/parse-events-hybrid.c
index b234d95fb10a..7e44deee1343 100644
--- a/tools/perf/util/parse-events-hybrid.c
+++ b/tools/perf/util/parse-events-hybrid.c
@@ -38,7 +38,7 @@ static void config_hybrid_attr(struct perf_event_attr *attr,
static int create_event_hybrid(__u32 config_type, int *idx,
struct list_head *list,
- struct perf_event_attr *attr, char *name,
+ struct perf_event_attr *attr, const char *name,
struct list_head *config_terms,
struct perf_pmu *pmu)
{
@@ -70,7 +70,7 @@ static int pmu_cmp(struct parse_events_state *parse_state,
static int add_hw_hybrid(struct parse_events_state *parse_state,
struct list_head *list, struct perf_event_attr *attr,
- char *name, struct list_head *config_terms)
+ const char *name, struct list_head *config_terms)
{
struct perf_pmu *pmu;
int ret;
@@ -94,7 +94,8 @@ static int add_hw_hybrid(struct parse_events_state *parse_state,
}
static int create_raw_event_hybrid(int *idx, struct list_head *list,
- struct perf_event_attr *attr, char *name,
+ struct perf_event_attr *attr,
+ const char *name,
struct list_head *config_terms,
struct perf_pmu *pmu)
{
@@ -113,7 +114,7 @@ static int create_raw_event_hybrid(int *idx, struct list_head *list,
static int add_raw_hybrid(struct parse_events_state *parse_state,
struct list_head *list, struct perf_event_attr *attr,
- char *name, struct list_head *config_terms)
+ const char *name, struct list_head *config_terms)
{
struct perf_pmu *pmu;
int ret;
@@ -138,7 +139,8 @@ static int add_raw_hybrid(struct parse_events_state *parse_state,
int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
struct list_head *list,
struct perf_event_attr *attr,
- char *name, struct list_head *config_terms,
+ const char *name,
+ struct list_head *config_terms,
bool *hybrid)
{
*hybrid = false;
@@ -159,7 +161,8 @@ int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
}
int parse_events__add_cache_hybrid(struct list_head *list, int *idx,
- struct perf_event_attr *attr, char *name,
+ struct perf_event_attr *attr,
+ const char *name,
struct list_head *config_terms,
bool *hybrid,
struct parse_events_state *parse_state)
diff --git a/tools/perf/util/parse-events-hybrid.h b/tools/perf/util/parse-events-hybrid.h
index f33bd67aa851..25a4a4f73f3a 100644
--- a/tools/perf/util/parse-events-hybrid.h
+++ b/tools/perf/util/parse-events-hybrid.h
@@ -11,11 +11,13 @@
int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
struct list_head *list,
struct perf_event_attr *attr,
- char *name, struct list_head *config_terms,
+ const char *name,
+ struct list_head *config_terms,
bool *hybrid);
int parse_events__add_cache_hybrid(struct list_head *list, int *idx,
- struct perf_event_attr *attr, char *name,
+ struct perf_event_attr *attr,
+ const char *name,
struct list_head *config_terms,
bool *hybrid,
struct parse_events_state *parse_state);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 1acac3e13b32..88f181a985b7 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -337,7 +337,7 @@ static int parse_events__is_name_term(struct parse_events_term *term)
return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
}
-static char *get_config_name(struct list_head *head_terms)
+static const char *get_config_name(struct list_head *head_terms)
{
struct parse_events_term *term;
@@ -355,7 +355,7 @@ static struct evsel *
__add_event(struct list_head *list, int *idx,
struct perf_event_attr *attr,
bool init_attr,
- char *name, struct perf_pmu *pmu,
+ const char *name, struct perf_pmu *pmu,
struct list_head *config_terms, bool auto_merge_stats,
const char *cpu_list)
{
@@ -394,14 +394,14 @@ __add_event(struct list_head *list, int *idx,
}
struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
- char *name, struct perf_pmu *pmu)
+ const char *name, struct perf_pmu *pmu)
{
return __add_event(NULL, &idx, attr, false, name, pmu, NULL, false,
NULL);
}
static int add_event(struct list_head *list, int *idx,
- struct perf_event_attr *attr, char *name,
+ struct perf_event_attr *attr, const char *name,
struct list_head *config_terms)
{
return __add_event(list, idx, attr, true, name, NULL, config_terms,
@@ -464,7 +464,8 @@ int parse_events_add_cache(struct list_head *list, int *idx,
{
struct perf_event_attr attr;
LIST_HEAD(config_terms);
- char name[MAX_NAME_LEN], *config_name;
+ char name[MAX_NAME_LEN];
+ const char *config_name;
int cache_type = -1, cache_op = -1, cache_result = -1;
char *op_result[2] = { op_result1, op_result2 };
int i, n, ret;
@@ -2027,7 +2028,7 @@ int parse_events__modifier_event(struct list_head *list, char *str, bool add)
return 0;
}
-int parse_events_name(struct list_head *list, char *name)
+int parse_events_name(struct list_head *list, const char *name)
{
struct evsel *evsel;
@@ -3344,7 +3345,7 @@ char *parse_events_formats_error_string(char *additional_terms)
struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx,
struct perf_event_attr *attr,
- char *name, struct perf_pmu *pmu,
+ const char *name, struct perf_pmu *pmu,
struct list_head *config_terms)
{
return __add_event(list, idx, attr, true, name, pmu,
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index b32ed3064c49..54d24c24d074 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -162,7 +162,7 @@ void parse_events_terms__purge(struct list_head *terms);
void parse_events__clear_array(struct parse_events_array *a);
int parse_events__modifier_event(struct list_head *list, char *str, bool add);
int parse_events__modifier_group(struct list_head *list, char *event_mod);
-int parse_events_name(struct list_head *list, char *name);
+int parse_events_name(struct list_head *list, const char *name);
int parse_events_add_tracepoint(struct list_head *list, int *idx,
const char *sys, const char *event,
struct parse_events_error *error,
@@ -199,7 +199,7 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
bool use_alias);
struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
- char *name, struct perf_pmu *pmu);
+ const char *name, struct perf_pmu *pmu);
int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
char *str,
@@ -266,7 +266,8 @@ int perf_pmu__test_parse_init(void);
struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx,
struct perf_event_attr *attr,
- char *name, struct perf_pmu *pmu,
+ const char *name,
+ struct perf_pmu *pmu,
struct list_head *config_terms);
#endif /* __PERF_PARSE_EVENTS_H */
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index cdd6c3f6caf1..9b5039bf909a 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1906,7 +1906,7 @@ int perf_pmu__caps_parse(struct perf_pmu *pmu)
}
void perf_pmu__warn_invalid_config(struct perf_pmu *pmu, __u64 config,
- char *name)
+ const char *name)
{
struct perf_pmu_format *format;
__u64 masks = 0, bits;
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index cc9f9e001347..f9743eab07b6 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -134,7 +134,7 @@ int perf_pmu__convert_scale(const char *scale, char **end, double *sval);
int perf_pmu__caps_parse(struct perf_pmu *pmu);
void perf_pmu__warn_invalid_config(struct perf_pmu *pmu, __u64 config,
- char *name);
+ const char *name);
bool perf_pmu__has_hybrid(void);
int perf_pmu__match(char *pattern, char *name, char *tok);
--
2.33.0.1079.g6e70778dc9-goog
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