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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	Clark Williams <williams@redhat.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Andi Kleen <ak@linux.intel.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Jin Yao <yao.jin@linux.intel.com>,
	John Garry <john.garry@huawei.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Martin KaFai Lau <kafai@fb.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Song Liu <songliubraving@fb.com>,
	Stephane Eranian <eranian@google.com>, Yonghong Song <yhs@fb.com>,
	bpf@vger.kernel.org, clang-built-linux@googlegroups.com,
	netdev@vger.kernel.org,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 11/63] perf tools: Move ALLOC_LIST into a function
Date: Thu,  7 Nov 2019 15:59:19 -0300	[thread overview]
Message-ID: <20191107190011.23924-12-acme@kernel.org> (raw)
In-Reply-To: <20191107190011.23924-1-acme@kernel.org>

From: Ian Rogers <irogers@google.com>

Having a YYABORT in a macro makes it hard to free memory for components
of a rule. Separate the logic out.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: clang-built-linux@googlegroups.com
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191023005337.196160-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/parse-events.y | 65 ++++++++++++++++++++++------------
 1 file changed, 43 insertions(+), 22 deletions(-)

diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 48126ae4cd13..5863acb34780 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -25,12 +25,17 @@ do { \
 		YYABORT; \
 } while (0)
 
-#define ALLOC_LIST(list) \
-do { \
-	list = malloc(sizeof(*list)); \
-	ABORT_ON(!list);              \
-	INIT_LIST_HEAD(list);         \
-} while (0)
+static struct list_head* alloc_list()
+{
+	struct list_head *list;
+
+	list = malloc(sizeof(*list));
+	if (!list)
+		return NULL;
+
+	INIT_LIST_HEAD(list);
+	return list;
+}
 
 static void inc_group_count(struct list_head *list,
 		       struct parse_events_state *parse_state)
@@ -238,7 +243,8 @@ PE_NAME opt_pmu_config
 	if (error)
 		error->idx = @1.first_column;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	if (parse_events_add_pmu(_parse_state, list, $1, $2, false, false)) {
 		struct perf_pmu *pmu = NULL;
 		int ok = 0;
@@ -306,7 +312,8 @@ value_sym '/' event_config '/'
 	int type = $1 >> 16;
 	int config = $1 & 255;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config, $3));
 	parse_events_terms__delete($3);
 	$$ = list;
@@ -318,7 +325,8 @@ value_sym sep_slash_slash_dc
 	int type = $1 >> 16;
 	int config = $1 & 255;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config, NULL));
 	$$ = list;
 }
@@ -327,7 +335,8 @@ PE_VALUE_SYM_TOOL sep_slash_slash_dc
 {
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_tool(_parse_state, list, $1));
 	$$ = list;
 }
@@ -339,7 +348,8 @@ PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT opt_e
 	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, $3, $5, error, $6));
 	parse_events_terms__delete($6);
 	$$ = list;
@@ -351,7 +361,8 @@ PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT opt_event_config
 	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, $3, NULL, error, $4));
 	parse_events_terms__delete($4);
 	$$ = list;
@@ -363,7 +374,8 @@ PE_NAME_CACHE_TYPE opt_event_config
 	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, NULL, NULL, error, $2));
 	parse_events_terms__delete($2);
 	$$ = list;
@@ -375,7 +387,8 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc
 	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
 					     (void *) $2, $6, $4));
 	$$ = list;
@@ -386,7 +399,8 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE sep_dc
 	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
 					     (void *) $2, NULL, $4));
 	$$ = list;
@@ -397,7 +411,8 @@ PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
 	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
 					     (void *) $2, $4, 0));
 	$$ = list;
@@ -408,7 +423,8 @@ PE_PREFIX_MEM PE_VALUE sep_dc
 	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
 					     (void *) $2, NULL, 0));
 	$$ = list;
@@ -421,7 +437,8 @@ tracepoint_name opt_event_config
 	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	if (error)
 		error->idx = @1.first_column;
 
@@ -457,7 +474,8 @@ PE_VALUE ':' PE_VALUE opt_event_config
 {
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4));
 	parse_events_terms__delete($4);
 	$$ = list;
@@ -468,7 +486,8 @@ PE_RAW opt_event_config
 {
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, $1, $2));
 	parse_events_terms__delete($2);
 	$$ = list;
@@ -480,7 +499,8 @@ PE_BPF_OBJECT opt_event_config
 	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_load_bpf(parse_state, list, $1, false, $2));
 	parse_events_terms__delete($2);
 	$$ = list;
@@ -490,7 +510,8 @@ PE_BPF_SOURCE opt_event_config
 {
 	struct list_head *list;
 
-	ALLOC_LIST(list);
+	list = alloc_list();
+	ABORT_ON(!list);
 	ABORT_ON(parse_events_load_bpf(_parse_state, list, $1, true, $2));
 	parse_events_terms__delete($2);
 	$$ = list;
-- 
2.21.0


       reply	other threads:[~2019-11-07 19:02 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191107190011.23924-1-acme@kernel.org>
2019-11-07 18:59 ` Arnaldo Carvalho de Melo [this message]
2019-11-07 18:59 ` [PATCH 12/63] perf tools: Avoid a malloc() for array events Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 34/63] perf tools: Splice events onto evlist even on error Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 41/63] perf parse: Add parse events handle error Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 42/63] perf parse: Ensure config and str in terms are unique Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 43/63] perf parse: Add destructors for parse event terms Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 44/63] perf parse: Before yyabort-ing free components Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 45/63] perf parse: If pmu configuration fails free terms Arnaldo Carvalho de Melo
2019-11-07 18:59 ` [PATCH 46/63] perf parse: Add a deep delete for parse event terms Arnaldo Carvalho de Melo

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