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-rw-r--r--tools/perf/util/parse-events.y391
1 files changed, 287 insertions, 104 deletions
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 48126ae4cd13..e2eea4e601b4 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -12,6 +12,7 @@
#include <stdio.h>
#include <linux/compiler.h>
#include <linux/types.h>
+#include <linux/zalloc.h>
#include "pmu.h"
#include "evsel.h"
#include "parse-events.h"
@@ -25,12 +26,28 @@ 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 free_list_evsel(struct list_head* list_evsel)
+{
+ struct evsel *evsel, *tmp;
+
+ list_for_each_entry_safe(evsel, tmp, list_evsel, core.node) {
+ list_del_init(&evsel->core.node);
+ perf_evsel__delete(evsel);
+ }
+ free(list_evsel);
+}
static void inc_group_count(struct list_head *list,
struct parse_events_state *parse_state)
@@ -61,6 +78,7 @@ static void inc_group_count(struct list_head *list,
%type <num> PE_VALUE_SYM_TOOL
%type <num> PE_RAW
%type <num> PE_TERM
+%type <num> value_sym
%type <str> PE_NAME
%type <str> PE_BPF_OBJECT
%type <str> PE_BPF_SOURCE
@@ -71,37 +89,43 @@ static void inc_group_count(struct list_head *list,
%type <str> PE_EVENT_NAME
%type <str> PE_PMU_EVENT_PRE PE_PMU_EVENT_SUF PE_KERNEL_PMU_EVENT
%type <str> PE_DRV_CFG_TERM
-%type <num> value_sym
-%type <head> event_config
-%type <head> opt_event_config
-%type <head> opt_pmu_config
+%destructor { free ($$); } <str>
%type <term> event_term
-%type <head> event_pmu
-%type <head> event_legacy_symbol
-%type <head> event_legacy_cache
-%type <head> event_legacy_mem
-%type <head> event_legacy_tracepoint
+%destructor { parse_events_term__delete ($$); } <term>
+%type <list_terms> event_config
+%type <list_terms> opt_event_config
+%type <list_terms> opt_pmu_config
+%destructor { parse_events_terms__delete ($$); } <list_terms>
+%type <list_evsel> event_pmu
+%type <list_evsel> event_legacy_symbol
+%type <list_evsel> event_legacy_cache
+%type <list_evsel> event_legacy_mem
+%type <list_evsel> event_legacy_tracepoint
+%type <list_evsel> event_legacy_numeric
+%type <list_evsel> event_legacy_raw
+%type <list_evsel> event_bpf_file
+%type <list_evsel> event_def
+%type <list_evsel> event_mod
+%type <list_evsel> event_name
+%type <list_evsel> event
+%type <list_evsel> events
+%type <list_evsel> group_def
+%type <list_evsel> group
+%type <list_evsel> groups
+%destructor { free_list_evsel ($$); } <list_evsel>
%type <tracepoint_name> tracepoint_name
-%type <head> event_legacy_numeric
-%type <head> event_legacy_raw
-%type <head> event_bpf_file
-%type <head> event_def
-%type <head> event_mod
-%type <head> event_name
-%type <head> event
-%type <head> events
-%type <head> group_def
-%type <head> group
-%type <head> groups
+%destructor { free ($$.sys); free ($$.event); } <tracepoint_name>
%type <array> array
%type <array> array_term
%type <array> array_terms
+%destructor { free ($$.ranges); } <array>
%union
{
char *str;
u64 num;
- struct list_head *head;
+ struct list_head *list_evsel;
+ struct list_head *list_terms;
struct parse_events_term *term;
struct tracepoint_name {
char *sys;
@@ -120,6 +144,7 @@ start_events: groups
{
struct parse_events_state *parse_state = _parse_state;
+ /* frees $1 */
parse_events_update_lists($1, &parse_state->list);
}
@@ -129,6 +154,7 @@ groups ',' group
struct list_head *list = $1;
struct list_head *group = $3;
+ /* frees $3 */
parse_events_update_lists(group, list);
$$ = list;
}
@@ -138,6 +164,7 @@ groups ',' event
struct list_head *list = $1;
struct list_head *event = $3;
+ /* frees $3 */
parse_events_update_lists(event, list);
$$ = list;
}
@@ -150,8 +177,14 @@ group:
group_def ':' PE_MODIFIER_EVENT
{
struct list_head *list = $1;
+ int err;
- ABORT_ON(parse_events__modifier_group(list, $3));
+ err = parse_events__modifier_group(list, $3);
+ free($3);
+ if (err) {
+ free_list_evsel(list);
+ YYABORT;
+ }
$$ = list;
}
|
@@ -164,6 +197,7 @@ PE_NAME '{' events '}'
inc_group_count(list, _parse_state);
parse_events__set_leader($1, list, _parse_state);
+ free($1);
$$ = list;
}
|
@@ -182,6 +216,7 @@ events ',' event
struct list_head *event = $3;
struct list_head *list = $1;
+ /* frees $3 */
parse_events_update_lists(event, list);
$$ = list;
}
@@ -194,13 +229,19 @@ event_mod:
event_name PE_MODIFIER_EVENT
{
struct list_head *list = $1;
+ int err;
/*
* Apply modifier on all events added by single event definition
* (there could be more events added for multiple tracepoint
* definitions via '*?'.
*/
- ABORT_ON(parse_events__modifier_event(list, $2, false));
+ err = parse_events__modifier_event(list, $2, false);
+ free($2);
+ if (err) {
+ free_list_evsel(list);
+ YYABORT;
+ }
$$ = list;
}
|
@@ -209,8 +250,14 @@ event_name
event_name:
PE_EVENT_NAME event_def
{
- ABORT_ON(parse_events_name($2, $1));
+ int err;
+
+ err = parse_events_name($2, $1);
free($1);
+ if (err) {
+ free_list_evsel($2);
+ YYABORT;
+ }
$$ = $2;
}
|
@@ -230,22 +277,34 @@ PE_NAME opt_pmu_config
{
struct parse_events_state *parse_state = _parse_state;
struct parse_events_error *error = parse_state->error;
- struct list_head *list, *orig_terms, *terms;
+ struct list_head *list = NULL, *orig_terms = NULL, *terms= NULL;
+ char *pattern = NULL;
+
+#define CLEANUP_YYABORT \
+ do { \
+ parse_events_terms__delete($2); \
+ parse_events_terms__delete(orig_terms); \
+ free(list); \
+ free($1); \
+ free(pattern); \
+ YYABORT; \
+ } while(0)
if (parse_events_copy_term_list($2, &orig_terms))
- YYABORT;
+ CLEANUP_YYABORT;
if (error)
error->idx = @1.first_column;
- ALLOC_LIST(list);
+ list = alloc_list();
+ if (!list)
+ CLEANUP_YYABORT;
if (parse_events_add_pmu(_parse_state, list, $1, $2, false, false)) {
struct perf_pmu *pmu = NULL;
int ok = 0;
- char *pattern;
if (asprintf(&pattern, "%s*", $1) < 0)
- YYABORT;
+ CLEANUP_YYABORT;
while ((pmu = perf_pmu__scan(pmu)) != NULL) {
char *name = pmu->name;
@@ -254,31 +313,32 @@ PE_NAME opt_pmu_config
strncmp($1, "uncore_", 7))
name += 7;
if (!fnmatch(pattern, name, 0)) {
- if (parse_events_copy_term_list(orig_terms, &terms)) {
- free(pattern);
- YYABORT;
- }
+ if (parse_events_copy_term_list(orig_terms, &terms))
+ CLEANUP_YYABORT;
if (!parse_events_add_pmu(_parse_state, list, pmu->name, terms, true, false))
ok++;
parse_events_terms__delete(terms);
}
}
- free(pattern);
-
if (!ok)
- YYABORT;
+ CLEANUP_YYABORT;
}
parse_events_terms__delete($2);
parse_events_terms__delete(orig_terms);
+ free($1);
$$ = list;
+#undef CLEANUP_YYABORT
}
|
PE_KERNEL_PMU_EVENT sep_dc
{
struct list_head *list;
+ int err;
- if (parse_events_multi_pmu_add(_parse_state, $1, &list) < 0)
+ err = parse_events_multi_pmu_add(_parse_state, $1, &list);
+ free($1);
+ if (err < 0)
YYABORT;
$$ = list;
}
@@ -289,6 +349,8 @@ PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc
char pmu_name[128];
snprintf(&pmu_name, 128, "%s-%s", $1, $3);
+ free($1);
+ free($3);
if (parse_events_multi_pmu_add(_parse_state, pmu_name, &list) < 0)
YYABORT;
$$ = list;
@@ -305,10 +367,16 @@ value_sym '/' event_config '/'
struct list_head *list;
int type = $1 >> 16;
int config = $1 & 255;
+ int err;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config, $3));
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_add_numeric(_parse_state, list, type, config, $3);
parse_events_terms__delete($3);
+ if (err) {
+ free_list_evsel(list);
+ YYABORT;
+ }
$$ = list;
}
|
@@ -318,7 +386,8 @@ 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));
$$ = list;
}
@@ -327,7 +396,8 @@ PE_VALUE_SYM_TOOL sep_slash_slash_dc
{
struct list_head *list;
- ALLOC_LIST(list);
+ list = alloc_list();
+ ABORT_ON(!list);
ABORT_ON(parse_events_add_tool(_parse_state, list, $1));
$$ = list;
}
@@ -338,10 +408,19 @@ PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT opt_e
struct parse_events_state *parse_state = _parse_state;
struct parse_events_error *error = parse_state->error;
struct list_head *list;
+ int err;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, $3, $5, error, $6));
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_add_cache(list, &parse_state->idx, $1, $3, $5, error, $6);
parse_events_terms__delete($6);
+ free($1);
+ free($3);
+ free($5);
+ if (err) {
+ free_list_evsel(list);
+ YYABORT;
+ }
$$ = list;
}
|
@@ -350,10 +429,18 @@ PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT opt_event_config
struct parse_events_state *parse_state = _parse_state;
struct parse_events_error *error = parse_state->error;
struct list_head *list;
+ int err;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, $3, NULL, error, $4));
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_add_cache(list, &parse_state->idx, $1, $3, NULL, error, $4);
parse_events_terms__delete($4);
+ free($1);
+ free($3);
+ if (err) {
+ free_list_evsel(list);
+ YYABORT;
+ }
$$ = list;
}
|
@@ -362,10 +449,17 @@ PE_NAME_CACHE_TYPE opt_event_config
struct parse_events_state *parse_state = _parse_state;
struct parse_events_error *error = parse_state->error;
struct list_head *list;
+ int err;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, NULL, NULL, error, $2));
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_add_cache(list, &parse_state->idx, $1, NULL, NULL, error, $2);
parse_events_terms__delete($2);
+ free($1);
+ if (err) {
+ free_list_evsel(list);
+ YYABORT;
+ }
$$ = list;
}
@@ -374,10 +468,17 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc
{
struct parse_events_state *parse_state = _parse_state;
struct list_head *list;
-
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
- (void *) $2, $6, $4));
+ int err;
+
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_add_breakpoint(list, &parse_state->idx,
+ (void *) $2, $6, $4);
+ free($6);
+ if (err) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
|
@@ -386,9 +487,13 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE sep_dc
struct parse_events_state *parse_state = _parse_state;
struct list_head *list;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
- (void *) $2, NULL, $4));
+ list = alloc_list();
+ ABORT_ON(!list);
+ if (parse_events_add_breakpoint(list, &parse_state->idx,
+ (void *) $2, NULL, $4)) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
|
@@ -396,10 +501,17 @@ PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
{
struct parse_events_state *parse_state = _parse_state;
struct list_head *list;
-
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
- (void *) $2, $4, 0));
+ int err;
+
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_add_breakpoint(list, &parse_state->idx,
+ (void *) $2, $4, 0);
+ free($4);
+ if (err) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
|
@@ -408,9 +520,13 @@ PE_PREFIX_MEM PE_VALUE sep_dc
struct parse_events_state *parse_state = _parse_state;
struct list_head *list;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
- (void *) $2, NULL, 0));
+ list = alloc_list();
+ ABORT_ON(!list);
+ if (parse_events_add_breakpoint(list, &parse_state->idx,
+ (void *) $2, NULL, 0)) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
@@ -420,28 +536,35 @@ tracepoint_name opt_event_config
struct parse_events_state *parse_state = _parse_state;
struct parse_events_error *error = parse_state->error;
struct list_head *list;
+ int err;
- ALLOC_LIST(list);
+ list = alloc_list();
+ ABORT_ON(!list);
if (error)
error->idx = @1.first_column;
- if (parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
- error, $2))
- return -1;
+ err = parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
+ error, $2);
+ parse_events_terms__delete($2);
+ free($1.sys);
+ free($1.event);
+ if (err) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
tracepoint_name:
PE_NAME '-' PE_NAME ':' PE_NAME
{
- char sys_name[128];
struct tracepoint_name tracepoint;
- snprintf(&sys_name, 128, "%s-%s", $1, $3);
- tracepoint.sys = &sys_name;
+ ABORT_ON(asprintf(&tracepoint.sys, "%s-%s", $1, $3) < 0);
tracepoint.event = $5;
-
+ free($1);
+ free($3);
$$ = tracepoint;
}
|
@@ -456,10 +579,16 @@ event_legacy_numeric:
PE_VALUE ':' PE_VALUE opt_event_config
{
struct list_head *list;
+ int err;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4));
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4);
parse_events_terms__delete($4);
+ if (err) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
@@ -467,10 +596,16 @@ event_legacy_raw:
PE_RAW opt_event_config
{
struct list_head *list;
+ int err;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, $1, $2));
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, $1, $2);
parse_events_terms__delete($2);
+ if (err) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
@@ -479,20 +614,33 @@ PE_BPF_OBJECT opt_event_config
{
struct parse_events_state *parse_state = _parse_state;
struct list_head *list;
+ int err;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_load_bpf(parse_state, list, $1, false, $2));
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_load_bpf(parse_state, list, $1, false, $2);
parse_events_terms__delete($2);
+ free($1);
+ if (err) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
|
PE_BPF_SOURCE opt_event_config
{
struct list_head *list;
+ int err;
- ALLOC_LIST(list);
- ABORT_ON(parse_events_load_bpf(_parse_state, list, $1, true, $2));
+ list = alloc_list();
+ ABORT_ON(!list);
+ err = parse_events_load_bpf(_parse_state, list, $1, true, $2);
parse_events_terms__delete($2);
+ if (err) {
+ free(list);
+ YYABORT;
+ }
$$ = list;
}
@@ -525,6 +673,10 @@ opt_pmu_config:
start_terms: event_config
{
struct parse_events_state *parse_state = _parse_state;
+ if (parse_state->terms) {
+ parse_events_terms__delete ($1);
+ YYABORT;
+ }
parse_state->terms = $1;
}
@@ -534,7 +686,10 @@ event_config ',' event_term
struct list_head *head = $1;
struct parse_events_term *term = $3;
- ABORT_ON(!head);
+ if (!head) {
+ parse_events_term__delete(term);
+ YYABORT;
+ }
list_add_tail(&term->list, head);
$$ = $1;
}
@@ -555,8 +710,12 @@ PE_NAME '=' PE_NAME
{
struct parse_events_term *term;
- ABORT_ON(parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
- $1, $3, &@1, &@3));
+ if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ $1, $3, &@1, &@3)) {
+ free($1);
+ free($3);
+ YYABORT;
+ }
$$ = term;
}
|
@@ -564,8 +723,11 @@ PE_NAME '=' PE_VALUE
{
struct parse_events_term *term;
- ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
- $1, $3, false, &@1, &@3));
+ if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ $1, $3, false, &@1, &@3)) {
+ free($1);
+ YYABORT;
+ }
$$ = term;
}
|
@@ -574,7 +736,10 @@ PE_NAME '=' PE_VALUE_SYM_HW
struct parse_events_term *term;
int config = $3 & 255;
- ABORT_ON(parse_events_term__sym_hw(&term, $1, config));
+ if (parse_events_term__sym_hw(&term, $1, config)) {
+ free($1);
+ YYABORT;
+ }
$$ = term;
}
|
@@ -582,8 +747,11 @@ PE_NAME
{
struct parse_events_term *term;
- ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
- $1, 1, true, &@1, NULL));
+ if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ $1, 1, true, &@1, NULL)) {
+ free($1);
+ YYABORT;
+ }
$$ = term;
}
|
@@ -600,7 +768,10 @@ PE_TERM '=' PE_NAME
{
struct parse_events_term *term;
- ABORT_ON(parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3));
+ if (parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3)) {
+ free($3);
+ YYABORT;
+ }
$$ = term;
}
|
@@ -624,9 +795,13 @@ PE_NAME array '=' PE_NAME
{
struct parse_events_term *term;
- ABORT_ON(parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
- $1, $4, &@1, &@4));
-
+ if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ $1, $4, &@1, &@4)) {
+ free($1);
+ free($4);
+ free($2.ranges);
+ YYABORT;
+ }
term->array = $2;
$$ = term;
}
@@ -635,8 +810,12 @@ PE_NAME array '=' PE_VALUE
{
struct parse_events_term *term;
- ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
- $1, $4, false, &@1, &@4));
+ if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ $1, $4, false, &@1, &@4)) {
+ free($1);
+ free($2.ranges);
+ YYABORT;
+ }
term->array = $2;
$$ = term;
}
@@ -644,9 +823,15 @@ PE_NAME array '=' PE_VALUE
PE_DRV_CFG_TERM
{
struct parse_events_term *term;
+ char *config = strdup($1);
- ABORT_ON(parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG,
- $1, $1, &@1, NULL));
+ ABORT_ON(!config);
+ if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG,
+ config, $1, &@1, NULL)) {
+ free($1);
+ free(config);
+ YYABORT;
+ }
$$ = term;
}
@@ -668,14 +853,12 @@ array_terms ',' array_term
struct parse_events_array new_array;
new_array.nr_ranges = $1.nr_ranges + $3.nr_ranges;
- new_array.ranges = malloc(sizeof(new_array.ranges[0]) *
- new_array.nr_ranges);
+ new_array.ranges = realloc($1.ranges,
+ sizeof(new_array.ranges[0]) *
+ new_array.nr_ranges);
ABORT_ON(!new_array.ranges);
- memcpy(&new_array.ranges[0], $1.ranges,
- $1.nr_ranges * sizeof(new_array.ranges[0]));
memcpy(&new_array.ranges[$1.nr_ranges], $3.ranges,
$3.nr_ranges * sizeof(new_array.ranges[0]));
- free($1.ranges);
free($3.ranges);
$$ = new_array;
}
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