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perf parse: Before yyabort-ing free components
Yyabort doesn't destruct inputs and so this must be done manually before using yyabort. 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/20191030223448.12930-8-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers
Arnaldo Carvalho de Melo
parent
f2a8ecd8b1
commit
cabbf26821
@ -152,6 +152,7 @@ start_events: groups
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{
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struct parse_events_state *parse_state = _parse_state;
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/* frees $1 */
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parse_events_update_lists($1, &parse_state->list);
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}
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@ -161,6 +162,7 @@ groups ',' group
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struct list_head *list = $1;
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struct list_head *group = $3;
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/* frees $3 */
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parse_events_update_lists(group, list);
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$$ = list;
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}
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@ -170,6 +172,7 @@ groups ',' event
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struct list_head *list = $1;
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struct list_head *event = $3;
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/* frees $3 */
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parse_events_update_lists(event, list);
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$$ = list;
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}
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@ -182,8 +185,14 @@ group:
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group_def ':' PE_MODIFIER_EVENT
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{
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struct list_head *list = $1;
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int err;
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ABORT_ON(parse_events__modifier_group(list, $3));
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err = parse_events__modifier_group(list, $3);
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free($3);
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if (err) {
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -196,6 +205,7 @@ PE_NAME '{' events '}'
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inc_group_count(list, _parse_state);
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parse_events__set_leader($1, list, _parse_state);
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free($1);
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$$ = list;
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}
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@ -214,6 +224,7 @@ events ',' event
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struct list_head *event = $3;
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struct list_head *list = $1;
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/* frees $3 */
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parse_events_update_lists(event, list);
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$$ = list;
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}
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@ -226,13 +237,19 @@ event_mod:
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event_name PE_MODIFIER_EVENT
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{
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struct list_head *list = $1;
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int err;
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/*
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* Apply modifier on all events added by single event definition
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* (there could be more events added for multiple tracepoint
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* definitions via '*?'.
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*/
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ABORT_ON(parse_events__modifier_event(list, $2, false));
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err = parse_events__modifier_event(list, $2, false);
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free($2);
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if (err) {
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -241,8 +258,14 @@ event_name
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event_name:
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PE_EVENT_NAME event_def
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{
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ABORT_ON(parse_events_name($2, $1));
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int err;
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err = parse_events_name($2, $1);
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free($1);
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if (err) {
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free_list_evsel($2);
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YYABORT;
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}
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$$ = $2;
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}
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@ -262,23 +285,33 @@ PE_NAME opt_pmu_config
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{
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struct parse_events_state *parse_state = _parse_state;
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struct parse_events_error *error = parse_state->error;
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struct list_head *list, *orig_terms, *terms;
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struct list_head *list = NULL, *orig_terms = NULL, *terms= NULL;
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char *pattern = NULL;
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#define CLEANUP_YYABORT \
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do { \
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parse_events_terms__delete($2); \
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parse_events_terms__delete(orig_terms); \
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free($1); \
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free(pattern); \
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YYABORT; \
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} while(0)
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if (parse_events_copy_term_list($2, &orig_terms))
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YYABORT;
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CLEANUP_YYABORT;
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if (error)
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error->idx = @1.first_column;
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list = alloc_list();
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ABORT_ON(!list);
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if (!list)
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CLEANUP_YYABORT;
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if (parse_events_add_pmu(_parse_state, list, $1, $2, false, false)) {
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struct perf_pmu *pmu = NULL;
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int ok = 0;
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char *pattern;
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if (asprintf(&pattern, "%s*", $1) < 0)
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YYABORT;
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CLEANUP_YYABORT;
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while ((pmu = perf_pmu__scan(pmu)) != NULL) {
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char *name = pmu->name;
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@ -287,31 +320,32 @@ PE_NAME opt_pmu_config
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strncmp($1, "uncore_", 7))
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name += 7;
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if (!fnmatch(pattern, name, 0)) {
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if (parse_events_copy_term_list(orig_terms, &terms)) {
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free(pattern);
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YYABORT;
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}
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if (parse_events_copy_term_list(orig_terms, &terms))
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CLEANUP_YYABORT;
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if (!parse_events_add_pmu(_parse_state, list, pmu->name, terms, true, false))
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ok++;
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parse_events_terms__delete(terms);
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}
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}
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free(pattern);
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if (!ok)
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YYABORT;
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CLEANUP_YYABORT;
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}
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parse_events_terms__delete($2);
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parse_events_terms__delete(orig_terms);
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free($1);
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$$ = list;
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#undef CLEANUP_YYABORT
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}
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PE_KERNEL_PMU_EVENT sep_dc
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{
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struct list_head *list;
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int err;
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if (parse_events_multi_pmu_add(_parse_state, $1, &list) < 0)
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err = parse_events_multi_pmu_add(_parse_state, $1, &list);
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free($1);
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if (err < 0)
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YYABORT;
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$$ = list;
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}
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@ -322,6 +356,8 @@ PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc
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char pmu_name[128];
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snprintf(&pmu_name, 128, "%s-%s", $1, $3);
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free($1);
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free($3);
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if (parse_events_multi_pmu_add(_parse_state, pmu_name, &list) < 0)
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YYABORT;
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$$ = list;
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@ -338,11 +374,16 @@ value_sym '/' event_config '/'
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struct list_head *list;
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int type = $1 >> 16;
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int config = $1 & 255;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config, $3));
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err = parse_events_add_numeric(_parse_state, list, type, config, $3);
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parse_events_terms__delete($3);
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if (err) {
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -374,11 +415,19 @@ PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT opt_e
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struct parse_events_state *parse_state = _parse_state;
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struct parse_events_error *error = parse_state->error;
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, $3, $5, error, $6));
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err = parse_events_add_cache(list, &parse_state->idx, $1, $3, $5, error, $6);
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parse_events_terms__delete($6);
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free($1);
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free($3);
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free($5);
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if (err) {
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -387,11 +436,18 @@ PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT opt_event_config
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struct parse_events_state *parse_state = _parse_state;
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struct parse_events_error *error = parse_state->error;
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, $3, NULL, error, $4));
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err = parse_events_add_cache(list, &parse_state->idx, $1, $3, NULL, error, $4);
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parse_events_terms__delete($4);
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free($1);
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free($3);
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if (err) {
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -400,11 +456,17 @@ PE_NAME_CACHE_TYPE opt_event_config
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struct parse_events_state *parse_state = _parse_state;
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struct parse_events_error *error = parse_state->error;
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, NULL, NULL, error, $2));
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err = parse_events_add_cache(list, &parse_state->idx, $1, NULL, NULL, error, $2);
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parse_events_terms__delete($2);
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free($1);
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if (err) {
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -413,11 +475,17 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc
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{
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struct parse_events_state *parse_state = _parse_state;
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
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(void *) $2, $6, $4));
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err = parse_events_add_breakpoint(list, &parse_state->idx,
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(void *) $2, $6, $4);
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free($6);
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if (err) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -428,8 +496,11 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE sep_dc
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
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(void *) $2, NULL, $4));
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if (parse_events_add_breakpoint(list, &parse_state->idx,
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(void *) $2, NULL, $4)) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -437,11 +508,17 @@ PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
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{
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struct parse_events_state *parse_state = _parse_state;
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
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(void *) $2, $4, 0));
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err = parse_events_add_breakpoint(list, &parse_state->idx,
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(void *) $2, $4, 0);
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free($4);
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if (err) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -452,8 +529,11 @@ PE_PREFIX_MEM PE_VALUE sep_dc
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
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(void *) $2, NULL, 0));
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if (parse_events_add_breakpoint(list, &parse_state->idx,
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(void *) $2, NULL, 0)) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -463,29 +543,35 @@ tracepoint_name opt_event_config
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struct parse_events_state *parse_state = _parse_state;
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struct parse_events_error *error = parse_state->error;
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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if (error)
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error->idx = @1.first_column;
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if (parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
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error, $2))
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return -1;
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err = parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
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error, $2);
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parse_events_terms__delete($2);
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free($1.sys);
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free($1.event);
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if (err) {
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free(list);
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return -1;
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}
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$$ = list;
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}
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tracepoint_name:
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PE_NAME '-' PE_NAME ':' PE_NAME
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{
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char sys_name[128];
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struct tracepoint_name tracepoint;
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snprintf(&sys_name, 128, "%s-%s", $1, $3);
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tracepoint.sys = &sys_name;
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ABORT_ON(asprintf(&tracepoint.sys, "%s-%s", $1, $3) < 0);
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tracepoint.event = $5;
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free($1);
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free($3);
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$$ = tracepoint;
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}
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@ -500,11 +586,16 @@ event_legacy_numeric:
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PE_VALUE ':' PE_VALUE opt_event_config
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{
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4));
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err = parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4);
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parse_events_terms__delete($4);
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if (err) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -512,11 +603,16 @@ event_legacy_raw:
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PE_RAW opt_event_config
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{
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, $1, $2));
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err = parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, $1, $2);
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parse_events_terms__delete($2);
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if (err) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -525,22 +621,33 @@ PE_BPF_OBJECT opt_event_config
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{
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struct parse_events_state *parse_state = _parse_state;
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_load_bpf(parse_state, list, $1, false, $2));
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err = parse_events_load_bpf(parse_state, list, $1, false, $2);
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parse_events_terms__delete($2);
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free($1);
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if (err) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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|
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PE_BPF_SOURCE opt_event_config
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{
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_load_bpf(_parse_state, list, $1, true, $2));
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err = parse_events_load_bpf(_parse_state, list, $1, true, $2);
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parse_events_terms__delete($2);
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if (err) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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@ -573,6 +680,10 @@ opt_pmu_config:
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start_terms: event_config
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{
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struct parse_events_state *parse_state = _parse_state;
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if (parse_state->terms) {
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parse_events_terms__delete ($1);
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YYABORT;
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}
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parse_state->terms = $1;
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}
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@ -582,7 +693,10 @@ event_config ',' event_term
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struct list_head *head = $1;
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struct parse_events_term *term = $3;
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ABORT_ON(!head);
|
||||
if (!head) {
|
||||
free_term(term);
|
||||
YYABORT;
|
||||
}
|
||||
list_add_tail(&term->list, head);
|
||||
$$ = $1;
|
||||
}
|
||||
@ -603,8 +717,12 @@ PE_NAME '=' PE_NAME
|
||||
{
|
||||
struct parse_events_term *term;
|
||||
|
||||
ABORT_ON(parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
||||
$1, $3, &@1, &@3));
|
||||
if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
||||
$1, $3, &@1, &@3)) {
|
||||
free($1);
|
||||
free($3);
|
||||
YYABORT;
|
||||
}
|
||||
$$ = term;
|
||||
}
|
||||
|
|
||||
@ -612,8 +730,11 @@ 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;
|
||||
}
|
||||
$$ = term;
|
||||
}
|
||||
|
|
||||
@ -622,7 +743,10 @@ PE_NAME '=' PE_VALUE_SYM_HW
|
||||
struct parse_events_term *term;
|
||||
int config = $3 & 255;
|
||||
|
||||
ABORT_ON(parse_events_term__sym_hw(&term, $1, config));
|
||||
if (parse_events_term__sym_hw(&term, $1, config)) {
|
||||
free($1);
|
||||
YYABORT;
|
||||
}
|
||||
$$ = term;
|
||||
}
|
||||
|
|
||||
@ -630,8 +754,11 @@ 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;
|
||||
}
|
||||
$$ = term;
|
||||
}
|
||||
|
|
||||
@ -648,7 +775,10 @@ PE_TERM '=' PE_NAME
|
||||
{
|
||||
struct parse_events_term *term;
|
||||
|
||||
ABORT_ON(parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3));
|
||||
if (parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3)) {
|
||||
free($3);
|
||||
YYABORT;
|
||||
}
|
||||
$$ = term;
|
||||
}
|
||||
|
|
||||
@ -672,9 +802,13 @@ 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;
|
||||
$$ = term;
|
||||
}
|
||||
@ -683,8 +817,12 @@ PE_NAME array '=' PE_VALUE
|
||||
{
|
||||
struct parse_events_term *term;
|
||||
|
||||
ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
||||
$1, $4, false, &@1, &@4));
|
||||
if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
||||
$1, $4, false, &@1, &@4)) {
|
||||
free($1);
|
||||
free($2.ranges);
|
||||
YYABORT;
|
||||
}
|
||||
term->array = $2;
|
||||
$$ = term;
|
||||
}
|
||||
@ -695,8 +833,12 @@ PE_DRV_CFG_TERM
|
||||
char *config = strdup($1);
|
||||
|
||||
ABORT_ON(!config);
|
||||
ABORT_ON(parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG,
|
||||
config, $1, &@1, NULL));
|
||||
if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG,
|
||||
config, $1, &@1, NULL)) {
|
||||
free($1);
|
||||
free(config);
|
||||
YYABORT;
|
||||
}
|
||||
$$ = term;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user