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Message-Id: <20191107190011.23924-47-acme@kernel.org>
Date: Thu, 7 Nov 2019 15:59:54 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>
Cc: Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
Clark Williams <williams@...hat.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Alexei Starovoitov <ast@...nel.org>,
Andi Kleen <ak@...ux.intel.com>,
Daniel Borkmann <daniel@...earbox.net>,
Jin Yao <yao.jin@...ux.intel.com>,
John Garry <john.garry@...wei.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Mark Rutland <mark.rutland@....com>,
Martin KaFai Lau <kafai@...com>,
Peter Zijlstra <peterz@...radead.org>,
Song Liu <songliubraving@...com>,
Stephane Eranian <eranian@...gle.com>,
Yonghong Song <yhs@...com>, bpf@...r.kernel.org,
clang-built-linux@...glegroups.com, netdev@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 46/63] perf parse: Add a deep delete for parse event terms
From: Ian Rogers <irogers@...gle.com>
Add a parse_events_term deep delete function so that owned strings and
arrays are freed.
Signed-off-by: Ian Rogers <irogers@...gle.com>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Alexei Starovoitov <ast@...nel.org>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Daniel Borkmann <daniel@...earbox.net>
Cc: Jin Yao <yao.jin@...ux.intel.com>
Cc: John Garry <john.garry@...wei.com>
Cc: Kan Liang <kan.liang@...ux.intel.com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Martin KaFai Lau <kafai@...com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Song Liu <songliubraving@...com>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Yonghong Song <yhs@...com>
Cc: bpf@...r.kernel.org
Cc: clang-built-linux@...glegroups.com
Cc: netdev@...r.kernel.org
Link: http://lore.kernel.org/lkml/20191030223448.12930-10-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/util/parse-events.c | 16 +++++++++++++---
tools/perf/util/parse-events.h | 1 +
tools/perf/util/parse-events.y | 12 ++----------
tools/perf/util/pmu.c | 2 +-
4 files changed, 17 insertions(+), 14 deletions(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a0a80f4e7038..6d18ff9bce49 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2812,6 +2812,18 @@ int parse_events_term__clone(struct parse_events_term **new,
return new_term(new, &temp, str, 0);
}
+void parse_events_term__delete(struct parse_events_term *term)
+{
+ if (term->array.nr_ranges)
+ zfree(&term->array.ranges);
+
+ if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
+ zfree(&term->val.str);
+
+ zfree(&term->config);
+ free(term);
+}
+
int parse_events_copy_term_list(struct list_head *old,
struct list_head **new)
{
@@ -2842,10 +2854,8 @@ void parse_events_terms__purge(struct list_head *terms)
struct parse_events_term *term, *h;
list_for_each_entry_safe(term, h, terms, list) {
- if (term->array.nr_ranges)
- zfree(&term->array.ranges);
list_del_init(&term->list);
- free(term);
+ parse_events_term__delete(term);
}
}
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 34f58d24a06a..5ee8ac93840c 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -139,6 +139,7 @@ int parse_events_term__sym_hw(struct parse_events_term **term,
char *config, unsigned idx);
int parse_events_term__clone(struct parse_events_term **new,
struct parse_events_term *term);
+void parse_events_term__delete(struct parse_events_term *term);
void parse_events_terms__delete(struct list_head *terms);
void parse_events_terms__purge(struct list_head *terms);
void parse_events__clear_array(struct parse_events_array *a);
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 376b19855470..4cac830015be 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -49,14 +49,6 @@ static void free_list_evsel(struct list_head* list_evsel)
free(list_evsel);
}
-static void free_term(struct parse_events_term *term)
-{
- if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR)
- free(term->val.str);
- zfree(&term->array.ranges);
- free(term);
-}
-
static void inc_group_count(struct list_head *list,
struct parse_events_state *parse_state)
{
@@ -99,7 +91,7 @@ static void inc_group_count(struct list_head *list,
%type <str> PE_DRV_CFG_TERM
%destructor { free ($$); } <str>
%type <term> event_term
-%destructor { free_term ($$); } <term>
+%destructor { parse_events_term__delete ($$); } <term>
%type <list_terms> event_config
%type <list_terms> opt_event_config
%type <list_terms> opt_pmu_config
@@ -694,7 +686,7 @@ event_config ',' event_term
struct parse_events_term *term = $3;
if (!head) {
- free_term(term);
+ parse_events_term__delete(term);
YYABORT;
}
list_add_tail(&term->list, head);
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index f9f427d4c313..db1e57113f4b 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1260,7 +1260,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
info->metric_name = alias->metric_name;
list_del_init(&term->list);
- free(term);
+ parse_events_term__delete(term);
}
/*
--
2.21.0
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