From: Ian Rogers <irogers@xxxxxxxxxx> 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@xxxxxxxxxx> Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Alexei Starovoitov <ast@xxxxxxxxxx> Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx> Cc: Daniel Borkmann <daniel@xxxxxxxxxxxxx> Cc: Jin Yao <yao.jin@xxxxxxxxxxxxxxx> Cc: John Garry <john.garry@xxxxxxxxxx> Cc: Kan Liang <kan.liang@xxxxxxxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Martin KaFai Lau <kafai@xxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Song Liu <songliubraving@xxxxxx> Cc: Stephane Eranian <eranian@xxxxxxxxxx> Cc: Yonghong Song <yhs@xxxxxx> Cc: bpf@xxxxxxxxxxxxxxx Cc: clang-built-linux@xxxxxxxxxxxxxxxx Cc: netdev@xxxxxxxxxxxxxxx Link: http://lore.kernel.org/lkml/20191023005337.196160-5-irogers@xxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- 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
