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authorIan Rogers <irogers@google.com>2021-11-07 01:00:00 -0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-11-07 15:38:54 -0300
commit6c1912898ed21bef2d7f8b52902b8bc3c0e5c2b5 (patch)
treef2768e4d3a20db33c8e699e489095b5e3e62c51d /tools/perf/util
parentperf stat: Fix memory leak on error path (diff)
downloadlinux-dev-6c1912898ed21bef2d7f8b52902b8bc3c0e5c2b5.tar.xz
linux-dev-6c1912898ed21bef2d7f8b52902b8bc3c0e5c2b5.zip
perf parse-events: Rename parse_events_error functions
Group error functions and name after the data type they manipulate. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20211107090002.3784612-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/metricgroup.c2
-rw-r--r--tools/perf/util/parse-events.c116
-rw-r--r--tools/perf/util/parse-events.h8
-rw-r--r--tools/perf/util/parse-events.y4
-rw-r--r--tools/perf/util/pmu.c8
5 files changed, 69 insertions, 69 deletions
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 4917e9704765..edd7180b24e4 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -1342,7 +1342,7 @@ static int parse_ids(struct perf_pmu *fake_pmu, struct expr_parse_ctx *ids,
bzero(&parse_error, sizeof(parse_error));
ret = __parse_events(parsed_evlist, events.buf, &parse_error, fake_pmu);
if (ret) {
- parse_events_print_error(&parse_error, events.buf);
+ parse_events_error__print(&parse_error, events.buf);
goto err_out;
}
ret = decode_all_metric_ids(parsed_evlist, modifier);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 278199ed788b..75cafb9a0720 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -191,39 +191,6 @@ static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir)
#define MAX_EVENT_LENGTH 512
-void parse_events__handle_error(struct parse_events_error *err, int idx,
- char *str, char *help)
-{
- if (WARN(!str, "WARNING: failed to provide error string\n")) {
- free(help);
- return;
- }
- switch (err->num_errors) {
- case 0:
- err->idx = idx;
- err->str = str;
- err->help = help;
- break;
- case 1:
- err->first_idx = err->idx;
- err->idx = idx;
- err->first_str = err->str;
- err->str = str;
- err->first_help = err->help;
- err->help = help;
- break;
- default:
- pr_debug("Multiple errors dropping message: %s (%s)\n",
- err->str, err->help);
- free(err->str);
- err->str = str;
- free(err->help);
- err->help = help;
- break;
- }
- err->num_errors++;
-}
-
struct tracepoint_path *tracepoint_id_to_path(u64 config)
{
struct tracepoint_path *path = NULL;
@@ -587,7 +554,7 @@ static void tracepoint_error(struct parse_events_error *e, int err,
}
tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
- parse_events__handle_error(e, 0, strdup(str), strdup(help));
+ parse_events_error__handle(e, 0, strdup(str), strdup(help));
}
static int add_tracepoint(struct list_head *list, int *idx,
@@ -811,7 +778,7 @@ int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
return 0;
errout:
- parse_events__handle_error(parse_state->error, 0,
+ parse_events_error__handle(parse_state->error, 0,
strdup(errbuf), strdup("(add -v to see detail)"));
return err;
}
@@ -831,7 +798,7 @@ parse_events_config_bpf(struct parse_events_state *parse_state,
int err;
if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) {
- parse_events__handle_error(parse_state->error, term->err_term,
+ parse_events_error__handle(parse_state->error, term->err_term,
strdup("Invalid config term for BPF object"),
NULL);
return -EINVAL;
@@ -851,7 +818,7 @@ parse_events_config_bpf(struct parse_events_state *parse_state,
else
idx = term->err_term + error_pos;
- parse_events__handle_error(parse_state->error, idx,
+ parse_events_error__handle(parse_state->error, idx,
strdup(errbuf),
strdup(
"Hint:\tValid config terms:\n"
@@ -923,7 +890,7 @@ int parse_events_load_bpf(struct parse_events_state *parse_state,
-err, errbuf,
sizeof(errbuf));
- parse_events__handle_error(parse_state->error, 0,
+ parse_events_error__handle(parse_state->error, 0,
strdup(errbuf), strdup("(add -v to see detail)"));
return err;
}
@@ -947,7 +914,7 @@ int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
struct bpf_object *obj __maybe_unused,
struct list_head *head_config __maybe_unused)
{
- parse_events__handle_error(parse_state->error, 0,
+ parse_events_error__handle(parse_state->error, 0,
strdup("BPF support is not compiled"),
strdup("Make sure libbpf-devel is available at build time."));
return -ENOTSUP;
@@ -959,7 +926,7 @@ int parse_events_load_bpf(struct parse_events_state *parse_state,
bool source __maybe_unused,
struct list_head *head_config __maybe_unused)
{
- parse_events__handle_error(parse_state->error, 0,
+ parse_events_error__handle(parse_state->error, 0,
strdup("BPF support is not compiled"),
strdup("Make sure libbpf-devel is available at build time."));
return -ENOTSUP;
@@ -1042,7 +1009,7 @@ static int check_type_val(struct parse_events_term *term,
return 0;
if (err) {
- parse_events__handle_error(err, term->err_val,
+ parse_events_error__handle(err, term->err_val,
type == PARSE_EVENTS__TERM_TYPE_NUM
? strdup("expected numeric value")
: strdup("expected string value"),
@@ -1087,7 +1054,7 @@ config_term_avail(int term_type, struct parse_events_error *err)
char *err_str;
if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) {
- parse_events__handle_error(err, -1,
+ parse_events_error__handle(err, -1,
strdup("Invalid term_type"), NULL);
return false;
}
@@ -1110,7 +1077,7 @@ config_term_avail(int term_type, struct parse_events_error *err)
/* term_type is validated so indexing is safe */
if (asprintf(&err_str, "'%s' is not usable in 'perf stat'",
config_term_names[term_type]) >= 0)
- parse_events__handle_error(err, -1, err_str, NULL);
+ parse_events_error__handle(err, -1, err_str, NULL);
return false;
}
}
@@ -1154,7 +1121,7 @@ do { \
if (strcmp(term->val.str, "no") &&
parse_branch_str(term->val.str,
&attr->branch_sample_type)) {
- parse_events__handle_error(err, term->err_val,
+ parse_events_error__handle(err, term->err_val,
strdup("invalid branch sample type"),
NULL);
return -EINVAL;
@@ -1163,7 +1130,7 @@ do { \
case PARSE_EVENTS__TERM_TYPE_TIME:
CHECK_TYPE_VAL(NUM);
if (term->val.num > 1) {
- parse_events__handle_error(err, term->err_val,
+ parse_events_error__handle(err, term->err_val,
strdup("expected 0 or 1"),
NULL);
return -EINVAL;
@@ -1202,7 +1169,7 @@ do { \
case PARSE_EVENTS__TERM_TYPE_PERCORE:
CHECK_TYPE_VAL(NUM);
if ((unsigned int)term->val.num > 1) {
- parse_events__handle_error(err, term->err_val,
+ parse_events_error__handle(err, term->err_val,
strdup("expected 0 or 1"),
NULL);
return -EINVAL;
@@ -1214,14 +1181,14 @@ do { \
case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
CHECK_TYPE_VAL(NUM);
if (term->val.num > UINT_MAX) {
- parse_events__handle_error(err, term->err_val,
+ parse_events_error__handle(err, term->err_val,
strdup("too big"),
NULL);
return -EINVAL;
}
break;
default:
- parse_events__handle_error(err, term->err_term,
+ parse_events_error__handle(err, term->err_term,
strdup("unknown term"),
parse_events_formats_error_string(NULL));
return -EINVAL;
@@ -1275,7 +1242,7 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
return config_term_common(attr, term, err);
default:
if (err) {
- parse_events__handle_error(err, term->err_term,
+ parse_events_error__handle(err, term->err_term,
strdup("unknown term"),
strdup("valid terms: call-graph,stack-size\n"));
}
@@ -1574,7 +1541,7 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
if (asprintf(&err_str,
"Cannot find PMU `%s'. Missing kernel support?",
name) >= 0)
- parse_events__handle_error(err, 0, err_str, NULL);
+ parse_events_error__handle(err, 0, err_str, NULL);
return -EINVAL;
}
@@ -2334,6 +2301,39 @@ int __parse_events(struct evlist *evlist, const char *str,
return ret;
}
+void parse_events_error__handle(struct parse_events_error *err, int idx,
+ char *str, char *help)
+{
+ if (WARN(!str, "WARNING: failed to provide error string\n")) {
+ free(help);
+ return;
+ }
+ switch (err->num_errors) {
+ case 0:
+ err->idx = idx;
+ err->str = str;
+ err->help = help;
+ break;
+ case 1:
+ err->first_idx = err->idx;
+ err->idx = idx;
+ err->first_str = err->str;
+ err->str = str;
+ err->first_help = err->help;
+ err->help = help;
+ break;
+ default:
+ pr_debug("Multiple errors dropping message: %s (%s)\n",
+ err->str, err->help);
+ free(err->str);
+ err->str = str;
+ free(err->help);
+ err->help = help;
+ break;
+ }
+ err->num_errors++;
+}
+
#define MAX_WIDTH 1000
static int get_term_width(void)
{
@@ -2343,8 +2343,8 @@ static int get_term_width(void)
return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
}
-static void __parse_events_print_error(int err_idx, const char *err_str,
- const char *err_help, const char *event)
+static void __parse_events_error__print(int err_idx, const char *err_str,
+ const char *err_help, const char *event)
{
const char *str = "invalid or unsupported event: ";
char _buf[MAX_WIDTH];
@@ -2398,19 +2398,19 @@ static void __parse_events_print_error(int err_idx, const char *err_str,
}
}
-void parse_events_print_error(struct parse_events_error *err,
- const char *event)
+void parse_events_error__print(struct parse_events_error *err,
+ const char *event)
{
if (!err->num_errors)
return;
- __parse_events_print_error(err->idx, err->str, err->help, event);
+ __parse_events_error__print(err->idx, err->str, err->help, event);
zfree(&err->str);
zfree(&err->help);
if (err->num_errors > 1) {
fputs("\nInitial error:\n", stderr);
- __parse_events_print_error(err->first_idx, err->first_str,
+ __parse_events_error__print(err->first_idx, err->first_str,
err->first_help, event);
zfree(&err->first_str);
zfree(&err->first_help);
@@ -2430,7 +2430,7 @@ int parse_events_option(const struct option *opt, const char *str,
ret = parse_events(evlist, str, &err);
if (ret) {
- parse_events_print_error(&err, str);
+ parse_events_error__print(&err, str);
fprintf(stderr, "Run 'perf list' for a list of valid events\n");
}
@@ -3324,7 +3324,7 @@ void parse_events_evlist_error(struct parse_events_state *parse_state,
if (!parse_state->error)
return;
- parse_events__handle_error(parse_state->error, idx, strdup(str), NULL);
+ parse_events_error__handle(parse_state->error, idx, strdup(str), NULL);
}
static void config_terms_list(char *buf, size_t buf_sz)
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index f60a661a2247..52ac26b3720a 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -142,8 +142,6 @@ struct parse_events_state {
char *hybrid_pmu_name;
};
-void parse_events__handle_error(struct parse_events_error *err, int idx,
- char *str, char *help);
void parse_events__shrink_config_terms(void);
int parse_events__is_hardcoded_term(struct parse_events_term *term);
int parse_events_term__num(struct parse_events_term **term,
@@ -244,8 +242,10 @@ int is_valid_tracepoint(const char *event_string);
int valid_event_mount(const char *eventfs);
char *parse_events_formats_error_string(char *additional_terms);
-void parse_events_print_error(struct parse_events_error *err,
- const char *event);
+void parse_events_error__handle(struct parse_events_error *err, int idx,
+ char *str, char *help);
+void parse_events_error__print(struct parse_events_error *err,
+ const char *event);
#ifdef HAVE_LIBELF_SUPPORT
/*
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 2d60f3cbe42b..174158982fae 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -186,7 +186,7 @@ group_def ':' PE_MODIFIER_EVENT
struct parse_events_state *parse_state = _parse_state;
struct parse_events_error *error = parse_state->error;
- parse_events__handle_error(error, @3.first_column,
+ parse_events_error__handle(error, @3.first_column,
strdup("Bad modifier"), NULL);
free_list_evsel(list);
YYABORT;
@@ -248,7 +248,7 @@ event_name PE_MODIFIER_EVENT
struct parse_events_state *parse_state = _parse_state;
struct parse_events_error *error = parse_state->error;
- parse_events__handle_error(error, @2.first_column,
+ parse_events_error__handle(error, @2.first_column,
strdup("Bad modifier"), NULL);
free_list_evsel(list);
YYABORT;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index f3072c71d132..6ae58406f4fc 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1283,7 +1283,7 @@ static int pmu_config_term(const char *pmu_name,
unknown_term = NULL;
help_msg = parse_events_formats_error_string(pmu_term);
if (err) {
- parse_events__handle_error(err, term->err_term,
+ parse_events_error__handle(err, term->err_term,
unknown_term,
help_msg);
} else {
@@ -1316,7 +1316,7 @@ static int pmu_config_term(const char *pmu_name,
if (term->no_value &&
bitmap_weight(format->bits, PERF_PMU_FORMAT_BITS) > 1) {
if (err) {
- parse_events__handle_error(err, term->err_val,
+ parse_events_error__handle(err, term->err_val,
strdup("no value assigned for term"),
NULL);
}
@@ -1331,7 +1331,7 @@ static int pmu_config_term(const char *pmu_name,
term->config, term->val.str);
}
if (err) {
- parse_events__handle_error(err, term->err_val,
+ parse_events_error__handle(err, term->err_val,
strdup("expected numeric value"),
NULL);
}
@@ -1348,7 +1348,7 @@ static int pmu_config_term(const char *pmu_name,
if (err) {
char *err_str;
- parse_events__handle_error(err, term->err_val,
+ parse_events_error__handle(err, term->err_val,
asprintf(&err_str,
"value too big for format, maximum is %llu",
(unsigned long long)max_val) < 0