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AJvYcCUK0g84hb43IbIW6IuHZwGUZeoCqm2ZcCmNCiP8v5li1zM421SjG6ZP//+S7JVfOYsfTjrN@lists.linux.dev X-Gm-Message-State: AOJu0Yz9kNoSGlVtLsZcC2HgDzIsX/j4BNGmrs1WIeiVmTrKy0TfEy2q Q3vim47wFGgYXLf8E5k1OZQ9Wlot1jR4TuqB5BXio5RjUqQOD2rLfJ+aQKsXIalOnALLzwoxUZW E/4pwyA== X-Google-Smtp-Source: AGHT+IGj7YkqrbDyup/KuLeb3AZ/P8HTzGtHUP1SULJ5EGEg5Fjd8pSVBH+ABj6fvvcr1nB84DffOnbaJUGo X-Received: from pjbmj3.prod.google.com ([2002:a17:90b:3683:b0:305:2d68:2be6]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:384b:b0:2ee:863e:9ffc with SMTP id 98e67ed59e1d1-305320b2429mr18702506a91.21.1743531914866; Tue, 01 Apr 2025 11:25:14 -0700 (PDT) Date: Tue, 1 Apr 2025 11:23:17 -0700 In-Reply-To: <20250401182347.3422199-1-irogers@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250401182347.3422199-1-irogers@google.com> X-Mailer: git-send-email 2.49.0.504.g3bcea36a83-goog Message-ID: <20250401182347.3422199-20-irogers@google.com> Subject: [PATCH v1 19/48] perf stat: Silence -Wshorten-64-to-32 warnings From: Ian Rogers To: Yury Norov , Rasmus Villemoes , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , Thomas Gleixner , Darren Hart , Davidlohr Bueso , "=?UTF-8?q?Andr=C3=A9=20Almeida?=" , John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , Yicong Yang , Jonathan Cameron , Nathan Chancellor , Bill Wendling , Justin Stitt , Josh Poimboeuf , Al Viro , Kyle Meyer , Ben Gainey , Athira Rajeev , Kajol Jain , Aditya Gupta , Eder Zulian , Dapeng Mi , Kuan-Wei Chiu , He Zhe , Dirk Gouders , Brian Geffon , Ravi Bangoria , Howard Chu , Charlie Jenkins , Colin Ian King , Dominique Martinet , Jann Horn , Masahiro Yamada , Arnd Bergmann , Yang Jihong , Dmitry Vyukov , Andi Kleen , Graham Woodward , Ilkka Koskinen , Anshuman Khandual , Zhongqiu Han , Hao Ge , Tengda Wu , Gabriele Monaco , Chun-Tse Shao , Casey Chen , "Dr. David Alan Gilbert" , Li Huafei , "Steinar H. Gunderson" , Levi Yun , Weilin Wang , Thomas Falcon , Thomas Richter , Andrew Kreimer , "=?UTF-8?q?Krzysztof=20=C5=81opatowski?=" , Christophe Leroy , Jean-Philippe Romain , Junhao He , "Masami Hiramatsu (Google)" , Xu Yang , Steve Clevenger , Zixian Cai , Stephen Brennan , Yujie Liu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev Content-Type: text/plain; charset="UTF-8" The clang warning -Wshorten-64-to-32 can be useful to catch inadvertent truncation. In some instances this truncation can lead to changing the sign of a result, for example, truncation to return an int to fit a sort routine. Silence the warning by making the implicit truncation explicit. Signed-off-by: Ian Rogers --- tools/perf/builtin-stat.c | 6 +++--- tools/perf/util/metricgroup.c | 15 +++++++-------- tools/perf/util/stat-display.c | 10 +++++----- 3 files changed, 15 insertions(+), 16 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 68ea7589c143..3d1171d03d32 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -833,7 +833,7 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx) l = strlen(counter->unit); if (l > stat_config.unit_width) - stat_config.unit_width = l; + stat_config.unit_width = (unsigned int)l; if (evsel__should_store_id(counter) && evsel__store_ids(counter, evsel_list)) { @@ -2101,7 +2101,7 @@ static int __cmd_record(const struct option stat_options[], struct opt_aggr_mode session = perf_session__new(data, NULL); if (IS_ERR(session)) { pr_err("Perf session creation failed\n"); - return PTR_ERR(session); + return (int)PTR_ERR(session); } init_features(session); @@ -2283,7 +2283,7 @@ static int __cmd_report(int argc, const char **argv) session = perf_session__new(&perf_stat.data, &perf_stat.tool); if (IS_ERR(session)) - return PTR_ERR(session); + return (int)PTR_ERR(session); perf_stat.session = session; stat_config.output = stderr; diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 46920ebadfd1..1e07dcaed3d7 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -256,12 +256,10 @@ static struct metric *metric__new(const struct pmu_metric *pm, return NULL; } -static bool contains_metric_id(struct evsel **metric_events, int num_events, +static bool contains_metric_id(struct evsel **metric_events, size_t num_events, const char *metric_id) { - int i; - - for (i = 0; i < num_events; i++) { + for (size_t i = 0; i < num_events; i++) { if (!strcmp(evsel__metric_id(metric_events[i]), metric_id)) return true; } @@ -355,7 +353,7 @@ static int setup_metric_events(const char *pmu, struct hashmap *ids, static bool match_metric(const char *metric_or_groups, const char *sought) { - int len; + size_t len; char *m; if (!sought) @@ -570,7 +568,7 @@ static int encode_metric_id(struct strbuf *sb, const char *x) if (ret) break; - ret = strbuf_addch(sb, '0' + (c - code_characters)); + ret = strbuf_addch(sb, '0' + (int)(c - code_characters)); if (ret) break; } else { @@ -1145,7 +1143,8 @@ static int metric_list_cmp(void *priv __maybe_unused, const struct list_head *l, const struct metric *left = container_of(l, struct metric, nd); const struct metric *right = container_of(r, struct metric, nd); struct expr_id_data *data; - int i, left_count, right_count; + int i; + size_t left_count, right_count; left_count = hashmap__size(left->pctx->ids); tool_pmu__for_each_event(i) { @@ -1159,7 +1158,7 @@ static int metric_list_cmp(void *priv __maybe_unused, const struct list_head *l, right_count--; } - return right_count - left_count; + return (int)right_count - (int)left_count; } /** diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c index e852ac0d9847..0aa172cf5e39 100644 --- a/tools/perf/util/stat-display.c +++ b/tools/perf/util/stat-display.c @@ -622,7 +622,7 @@ static void print_metric_only(struct perf_stat_config *config, struct outstate *os = ctx; FILE *out = os->fh; char buf[1024], str[1024]; - unsigned mlen = config->metric_only_len; + size_t mlen = config->metric_only_len; const char *color = metric_threshold_classify__color(thresh); if (!valid_only_metric(unit)) @@ -635,7 +635,7 @@ static void print_metric_only(struct perf_stat_config *config, mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1; color_snprintf(str, sizeof(str), color ?: "", fmt ?: "", val); - fprintf(out, "%*s ", mlen, str); + fprintf(out, "%*s ", (int)mlen, str); os->first = false; } @@ -954,7 +954,7 @@ static void evsel__uniquify_counter(struct evsel *counter) config = strchr(name, '/'); if (config) { - int len = config - name; + int len = (int)(config - name); if (config[1] == '/') { /* case: event// */ @@ -967,7 +967,7 @@ static void evsel__uniquify_counter(struct evsel *counter) config = strchr(name, ':'); if (config) { /* case: event:.. */ - int len = config - name; + int len = (int)(config - name); ret = asprintf(&new_name, "%s/%.*s/%s", pmu_name, len, name, config + 1); } else { @@ -1493,7 +1493,7 @@ static int get_precision(double num) if (num > 1) return 0; - return lround(ceil(-log10(num))); + return (int)lround(ceil(-log10(num))); } static void print_table(struct perf_stat_config *config, -- 2.49.0.504.g3bcea36a83-goog