From 88031a0de7d68d132014154b9e5307428e8ed70d Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Tue, 4 Jan 2022 22:13:08 -0800 Subject: [PATCH] perf stat: Switch to cpu version of cpu_map__get() Avoid possible bugs where the wrong index is passed with the cpu_map. Reviewed-by: James Clark Signed-off-by: Ian Rogers Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: John Garry Cc: Kajol Jain Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Riccardo Mancini Cc: Stephane Eranian Cc: Suzuki Poulouse Cc: Vineet Singh Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: zhengjun.xing@intel.com Link: https://lore.kernel.org/r/20220105061351.120843-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-stat.c | 93 +++++++++++++++++++++++------------------- tools/perf/util/stat-display.c | 11 ++--- tools/perf/util/stat.h | 3 +- 3 files changed, 57 insertions(+), 50 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index f6ca2b0..9791ae9 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -1323,69 +1323,63 @@ static struct option stat_options[] = { }; static struct aggr_cpu_id perf_stat__get_socket(struct perf_stat_config *config __maybe_unused, - struct perf_cpu_map *map, int cpu) + int cpu) { - return cpu_map__get_socket(map, cpu, NULL); + return cpu_map__get_socket_aggr_by_cpu(cpu, /*data=*/NULL); } static struct aggr_cpu_id perf_stat__get_die(struct perf_stat_config *config __maybe_unused, - struct perf_cpu_map *map, int cpu) + int cpu) { - return cpu_map__get_die(map, cpu, NULL); + return cpu_map__get_die_aggr_by_cpu(cpu, /*data=*/NULL); } static struct aggr_cpu_id perf_stat__get_core(struct perf_stat_config *config __maybe_unused, - struct perf_cpu_map *map, int cpu) + int cpu) { - return cpu_map__get_core(map, cpu, NULL); + return cpu_map__get_core_aggr_by_cpu(cpu, /*data=*/NULL); } static struct aggr_cpu_id perf_stat__get_node(struct perf_stat_config *config __maybe_unused, - struct perf_cpu_map *map, int cpu) + int cpu) { - return cpu_map__get_node(map, cpu, NULL); + return cpu_map__get_node_aggr_by_cpu(cpu, /*data=*/NULL); } static struct aggr_cpu_id perf_stat__get_aggr(struct perf_stat_config *config, - aggr_get_id_t get_id, struct perf_cpu_map *map, int idx) + aggr_get_id_t get_id, int cpu) { - int cpu; struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id(); - if (idx >= map->nr) - return id; - - cpu = map->map[idx]; - if (cpu_map__aggr_cpu_id_is_empty(config->cpus_aggr_map->map[cpu])) - config->cpus_aggr_map->map[cpu] = get_id(config, map, idx); + config->cpus_aggr_map->map[cpu] = get_id(config, cpu); id = config->cpus_aggr_map->map[cpu]; return id; } static struct aggr_cpu_id perf_stat__get_socket_cached(struct perf_stat_config *config, - struct perf_cpu_map *map, int idx) + int cpu) { - return perf_stat__get_aggr(config, perf_stat__get_socket, map, idx); + return perf_stat__get_aggr(config, perf_stat__get_socket, cpu); } static struct aggr_cpu_id perf_stat__get_die_cached(struct perf_stat_config *config, - struct perf_cpu_map *map, int idx) + int cpu) { - return perf_stat__get_aggr(config, perf_stat__get_die, map, idx); + return perf_stat__get_aggr(config, perf_stat__get_die, cpu); } static struct aggr_cpu_id perf_stat__get_core_cached(struct perf_stat_config *config, - struct perf_cpu_map *map, int idx) + int cpu) { - return perf_stat__get_aggr(config, perf_stat__get_core, map, idx); + return perf_stat__get_aggr(config, perf_stat__get_core, cpu); } static struct aggr_cpu_id perf_stat__get_node_cached(struct perf_stat_config *config, - struct perf_cpu_map *map, int idx) + int cpu) { - return perf_stat__get_aggr(config, perf_stat__get_node, map, idx); + return perf_stat__get_aggr(config, perf_stat__get_node, cpu); } static bool term_percore_set(void) @@ -1483,8 +1477,9 @@ static void perf_stat__exit_aggr_mode(void) stat_config.cpus_aggr_map = NULL; } -static inline int perf_env__get_cpu(struct perf_env *env, struct perf_cpu_map *map, int idx) +static inline int perf_env__get_cpu(void *data, struct perf_cpu_map *map, int idx) { + struct perf_env *env = data; int cpu; if (idx > map->nr) @@ -1498,10 +1493,9 @@ static inline int perf_env__get_cpu(struct perf_env *env, struct perf_cpu_map *m return cpu; } -static struct aggr_cpu_id perf_env__get_socket(struct perf_cpu_map *map, int idx, void *data) +static struct aggr_cpu_id perf_env__get_socket_aggr_by_cpu(int cpu, void *data) { struct perf_env *env = data; - int cpu = perf_env__get_cpu(env, map, idx); struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id(); if (cpu != -1) @@ -1510,11 +1504,15 @@ static struct aggr_cpu_id perf_env__get_socket(struct perf_cpu_map *map, int idx return id; } -static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, void *data) +static struct aggr_cpu_id perf_env__get_socket(struct perf_cpu_map *map, int idx, void *data) +{ + return perf_env__get_socket_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data); +} + +static struct aggr_cpu_id perf_env__get_die_aggr_by_cpu(int cpu, void *data) { struct perf_env *env = data; struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id(); - int cpu = perf_env__get_cpu(env, map, idx); if (cpu != -1) { /* @@ -1529,11 +1527,15 @@ static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, v return id; } -static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx, void *data) +static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, void *data) +{ + return perf_env__get_die_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data); +} + +static struct aggr_cpu_id perf_env__get_core_aggr_by_cpu(int cpu, void *data) { struct perf_env *env = data; struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id(); - int cpu = perf_env__get_cpu(env, map, idx); if (cpu != -1) { /* @@ -1549,15 +1551,24 @@ static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx, return id; } -static struct aggr_cpu_id perf_env__get_node(struct perf_cpu_map *map, int idx, void *data) +static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx, void *data) +{ + return perf_env__get_core_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data); +} + +static struct aggr_cpu_id perf_env__get_node_aggr_by_cpu(int cpu, void *data) { - int cpu = perf_env__get_cpu(data, map, idx); struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id(); id.node = perf_env__numa_node(data, cpu); return id; } +static struct aggr_cpu_id perf_env__get_node(struct perf_cpu_map *map, int idx, void *data) +{ + return perf_env__get_node_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data); +} + static int perf_env__build_socket_map(struct perf_env *env, struct perf_cpu_map *cpus, struct cpu_aggr_map **sockp) { @@ -1583,26 +1594,26 @@ static int perf_env__build_node_map(struct perf_env *env, struct perf_cpu_map *c } static struct aggr_cpu_id perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused, - struct perf_cpu_map *map, int idx) + int cpu) { - return perf_env__get_socket(map, idx, &perf_stat.session->header.env); + return perf_env__get_socket_aggr_by_cpu(cpu, &perf_stat.session->header.env); } static struct aggr_cpu_id perf_stat__get_die_file(struct perf_stat_config *config __maybe_unused, - struct perf_cpu_map *map, int idx) + int cpu) { - return perf_env__get_die(map, idx, &perf_stat.session->header.env); + return perf_env__get_die_aggr_by_cpu(cpu, &perf_stat.session->header.env); } static struct aggr_cpu_id perf_stat__get_core_file(struct perf_stat_config *config __maybe_unused, - struct perf_cpu_map *map, int idx) + int cpu) { - return perf_env__get_core(map, idx, &perf_stat.session->header.env); + return perf_env__get_core_aggr_by_cpu(cpu, &perf_stat.session->header.env); } static struct aggr_cpu_id perf_stat__get_node_file(struct perf_stat_config *config __maybe_unused, - struct perf_cpu_map *map, int idx) + int cpu) { - return perf_env__get_node(map, idx, &perf_stat.session->header.env); + return perf_env__get_node_aggr_by_cpu(cpu, &perf_stat.session->header.env); } static int perf_stat_init_aggr_mode_file(struct perf_stat *st) diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c index efab39a..6c40b91 100644 --- a/tools/perf/util/stat-display.c +++ b/tools/perf/util/stat-display.c @@ -341,8 +341,7 @@ static int first_shadow_cpu(struct perf_stat_config *config, cpus = evsel__cpus(evsel); perf_cpu_map__for_each_cpu(cpu, idx, cpus) { - if (cpu_map__compare_aggr_cpu_id(config->aggr_get_id(config, cpus, idx), - id)) + if (cpu_map__compare_aggr_cpu_id(config->aggr_get_id(config, cpu), id)) return cpu; } return 0; @@ -525,8 +524,7 @@ static void aggr_update_shadow(struct perf_stat_config *config, cpus = evsel__cpus(counter); val = 0; perf_cpu_map__for_each_cpu(cpu, idx, cpus) { - (void)cpu; - s2 = config->aggr_get_id(config, cpus, idx); + s2 = config->aggr_get_id(config, cpu); if (!cpu_map__compare_aggr_cpu_id(s2, id)) continue; val += perf_counts(counter->counts, idx, 0)->val; @@ -642,8 +640,7 @@ static void aggr_cb(struct perf_stat_config *config, perf_cpu_map__for_each_cpu(cpu, idx, cpus) { struct perf_counts_values *counts; - (void)cpu; - s2 = config->aggr_get_id(config, cpus, idx); + s2 = config->aggr_get_id(config, cpu); if (!cpu_map__compare_aggr_cpu_id(s2, ad->id)) continue; if (first) @@ -1217,7 +1214,7 @@ static void print_percore_thread(struct perf_stat_config *config, cpus = evsel__cpus(counter); perf_cpu_map__for_each_cpu(cpu, idx, cpus) { - s2 = config->aggr_get_id(config, cpus, idx); + s2 = config->aggr_get_id(config, cpu); for (s = 0; s < config->aggr_map->nr; s++) { id = config->aggr_map->map[s]; if (cpu_map__compare_aggr_cpu_id(s2, id)) diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h index 32c8527..32cf241 100644 --- a/tools/perf/util/stat.h +++ b/tools/perf/util/stat.h @@ -108,8 +108,7 @@ struct runtime_stat { struct rblist value_list; }; -typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, - struct perf_cpu_map *m, int cpu); +typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, int cpu); struct perf_stat_config { enum aggr_mode aggr_mode; -- 2.7.4