From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f201.google.com (mail-dy1-f201.google.com [74.125.82.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 55F6F33A716 for ; Sat, 4 Apr 2026 03:44:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775274266; cv=none; b=S3Pz+IkB8sQMulLATkItCnS7dEwwP0O2yUnarRK871IRYngHKVgHIzNidlCb83GxFXZz4A3mj1fwfa9VvikHm/dC+QlzRvdJ8solQ0Rx0Mhn08Gs4tfYYCZ+BSJmYi6vayo/j29p9GQ7RH7rhCNEZnnpMDhGSF6CzKqXtqPOwjs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775274266; c=relaxed/simple; bh=gaaj7mqTj9irdR4S7xoXLu9VEiPSaerqzbyXPHicpOk=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Z3j/q8LwdSBLuOWv0fxX4Z9y5jFQCSEN5EX4xV8fP9Cy3wuvL9BQKZzEHEI2Ozq9pAVk+PbAx+/s4QqQUt2+CURFO+SIDDpsSkpKLNklBYJUU5WSVCi5vNHfIir+l4Z+3U4nUFTzKmll1rjNUA0TqcbBZsx8+d/WomKGKxzWwPU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=ZeKt5HL6; arc=none smtp.client-ip=74.125.82.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ZeKt5HL6" Received: by mail-dy1-f201.google.com with SMTP id 5a478bee46e88-2c0ba59a830so3188875eec.0 for ; Fri, 03 Apr 2026 20:44:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1775274264; x=1775879064; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=Q/+euWmx5IbaoRi1V0BAsO1Eoicg/byu+jgqEgqtKYw=; b=ZeKt5HL6pERcavgZwqnAEIfn5fXVS2btqKdnTAymiO9qATTwwnv/zFIkJY4wAbhffA bFPHala3yXy9cj9RkL/iaYQzZ+VGM08myYaoZcuNEQPPTUNDUHboX/P0cCV4Vc+iX9Ch l7+yinyl1x3TIfZRdFh68WGvr0k3IT5HHrEIdnkgOGHpc/X0RuTkprRpZyfPrHscs29b NCQUTb4+dGCzGfkQznIpqGO7mwT6G9vbS8D/THI7MkdBB6xBwRrP60mgbviaVRA57SGX wgJ4BI+Sd7TvfJ0M0AQm6XwBmTqOK+NHeHbdtGJWq8yQegkAdcYaMh0Tbn9j48DqxU6A RLoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775274264; x=1775879064; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Q/+euWmx5IbaoRi1V0BAsO1Eoicg/byu+jgqEgqtKYw=; b=MALsOAwcia8mnsKAr1iPnnG9vbpivkLz4XCpXosti1Xy12zAeoh5fsyY6nCSVS/NN2 dMNsu8n8BeX0Z/2U7h0onZP1WpougWnzwioyktAG6fEC9t6t2QJn0eFGe/HtHgpcGtam xLqPfK0NQigx+fi19qq9OjlANiNLtQAGrvLmYSoYtWG0dhPkd+XC+CseKVmtACVkmr+W ANr9ZKwNEDYyBqIJH7Eoy8Ft4XykUZPwRil1vHlgV6pOcxz2GFTukJjHtIW3dvxpkVKl Gofpt4pkFhi/16bHkObM5l1DPoiStpr6+n/VJi7/H1XxEXkogiMxIOpslXk/aWArEjxY g8cg== X-Forwarded-Encrypted: i=1; AJvYcCWNFqCXZ7jVYeNX51jcbplOXclSCgwkBpi0CrJBgO8+vravqK2VhrkKz+LF5qyYxBBlruS15nQSEYkBeg8xHsRd@vger.kernel.org X-Gm-Message-State: AOJu0YwDS1dErSdPKSzUadoRr9Ua2q8HszNQ3MklZuMj94zqxT9Tm4di TZQEogA/jktVM61bEBsxFeJJkFIPxBEpFS3aUpZn9PjHSuAgphkaqCgUOW8a7R3gDiW2pyp9RTB NenJ/l8hrcA== X-Received: from dlbtp9.prod.google.com ([2002:a05:7022:3b89:b0:12a:6d14:dfd9]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:45a6:b0:128:d352:bf8a with SMTP id a92af1059eb24-12bfb766defmr2405731c88.33.1775274264264; Fri, 03 Apr 2026 20:44:24 -0700 (PDT) Date: Fri, 3 Apr 2026 20:43:20 -0700 In-Reply-To: <20260404034325.3172592-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260403204017.2919994-1-irogers@google.com> <20260404034325.3172592-1-irogers@google.com> X-Mailer: git-send-email 2.53.0.1213.gd9a14994de-goog Message-ID: <20260404034325.3172592-21-irogers@google.com> Subject: [PATCH v6 20/25] perf timechart: Don't pass evsel with sample From: Ian Rogers To: acme@kernel.org, namhyung@kernel.org Cc: irogers@google.com, adrian.hunter@intel.com, ajones@ventanamicro.com, ak@linux.intel.com, alex@ghiti.fr, alexander.shishkin@linux.intel.com, anup@brainfault.org, aou@eecs.berkeley.edu, atrajeev@linux.ibm.com, blakejones@google.com, ctshao@google.com, dapeng1.mi@linux.intel.com, derek.foreman@collabora.com, dvyukov@google.com, howardchu95@gmail.com, hrishikesh123s@gmail.com, james.clark@linaro.org, jolsa@kernel.org, krzysztof.m.lopatowski@gmail.com, leo.yan@arm.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux@treblig.org, mingo@redhat.com, nichen@iscas.ac.cn, palmer@dabbelt.com, peterz@infradead.org, pjw@kernel.org, ravi.bangoria@amd.com, swapnil.sapkal@amd.com, tanze@kylinos.cn, thomas.falcon@intel.com, tianyou.li@intel.com, yujie.liu@intel.com, zhouquan@iscas.ac.cn Content-Type: text/plain; charset="UTF-8" The sample contains the evsel and so it is unnecessary to pass the evsel as well. Add missing backtrace argument to tracepoint_handler functions and mark them unused. Fix missing free from cat_backtrace, which requires copies of the backtrace being made in functions that save it. Signed-off-by: Ian Rogers --- tools/perf/builtin-timechart.c | 81 ++++++++++++++++------------------ 1 file changed, 39 insertions(+), 42 deletions(-) diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 782ede4258a2..0db2a9bd5b91 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -299,7 +299,7 @@ static void pid_put_sample(struct timechart *tchart, int pid, int type, sample->type = type; sample->next = c->samples; sample->cpu = cpu; - sample->backtrace = backtrace; + sample->backtrace = backtrace ? strdup(backtrace) : NULL; c->samples = sample; if (sample->type == TYPE_RUNNING && end > start && start > 0) { @@ -433,7 +433,7 @@ static void sched_wakeup(struct timechart *tchart, int cpu, u64 timestamp, we->time = timestamp; we->waker = waker; - we->backtrace = backtrace; + we->backtrace = backtrace ? strdup(backtrace) : NULL; if ((flags & TRACE_FLAG_HARDIRQ) || (flags & TRACE_FLAG_SOFTIRQ)) we->waker = -1; @@ -489,9 +489,9 @@ static void sched_switch(struct timechart *tchart, int cpu, u64 timestamp, } } -static const char *cat_backtrace(union perf_event *event, - struct perf_sample *sample, - struct machine *machine) +static char *cat_backtrace(union perf_event *event, + struct perf_sample *sample, + struct machine *machine) { struct addr_location al; unsigned int i; @@ -544,8 +544,10 @@ static const char *cat_backtrace(union perf_event *event, * It seems the callchain is corrupted. * Discard all. */ - zfree(&p); - goto exit; + addr_location__exit(&al); + fclose(f); + free(p); + return NULL; } continue; } @@ -567,7 +569,6 @@ static const char *cat_backtrace(union perf_event *event, } typedef int (*tracepoint_handler)(struct timechart *tchart, - struct evsel *evsel, struct perf_sample *sample, const char *backtrace); @@ -578,6 +579,7 @@ static int process_sample_event(const struct perf_tool *tool, { struct timechart *tchart = container_of(tool, struct timechart, tool); struct evsel *evsel = sample->evsel; + int ret = 0; if (evsel->core.attr.sample_type & PERF_SAMPLE_TIME) { if (!tchart->first_time || tchart->first_time > sample->time) @@ -588,16 +590,17 @@ static int process_sample_event(const struct perf_tool *tool, if (evsel->handler != NULL) { tracepoint_handler f = evsel->handler; - return f(tchart, evsel, sample, - cat_backtrace(event, sample, machine)); + char *backtrace = cat_backtrace(event, sample, machine); + + ret = f(tchart, sample, backtrace); + free(backtrace); } - return 0; + return ret; } static int process_sample_cpu_idle(struct timechart *tchart __maybe_unused, - struct evsel *evsel __maybe_unused, struct perf_sample *sample, const char *backtrace __maybe_unused) { @@ -617,7 +620,6 @@ process_sample_cpu_idle(struct timechart *tchart __maybe_unused, static int process_sample_cpu_frequency(struct timechart *tchart, - struct evsel *evsel __maybe_unused, struct perf_sample *sample, const char *backtrace __maybe_unused) { @@ -634,7 +636,6 @@ process_sample_cpu_frequency(struct timechart *tchart, static int process_sample_sched_wakeup(struct timechart *tchart, - struct evsel *evsel __maybe_unused, struct perf_sample *sample, const char *backtrace) { @@ -648,7 +649,6 @@ process_sample_sched_wakeup(struct timechart *tchart, static int process_sample_sched_switch(struct timechart *tchart, - struct evsel *evsel __maybe_unused, struct perf_sample *sample, const char *backtrace) { @@ -664,7 +664,6 @@ process_sample_sched_switch(struct timechart *tchart, #ifdef SUPPORT_OLD_POWER_EVENTS static int process_sample_power_start(struct timechart *tchart __maybe_unused, - struct evsel *evsel __maybe_unused, struct perf_sample *sample, const char *backtrace __maybe_unused) { @@ -681,7 +680,6 @@ process_sample_power_start(struct timechart *tchart __maybe_unused, static int process_sample_power_end(struct timechart *tchart, - struct evsel *evsel __maybe_unused, struct perf_sample *sample, const char *backtrace __maybe_unused) { @@ -691,7 +689,6 @@ process_sample_power_end(struct timechart *tchart, static int process_sample_power_frequency(struct timechart *tchart, - struct evsel *evsel __maybe_unused, struct perf_sample *sample, const char *backtrace __maybe_unused) { @@ -865,8 +862,8 @@ static int pid_end_io_sample(struct timechart *tchart, int pid, int type, static int process_enter_read(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long fd = perf_sample__intval(sample, "fd"); return pid_begin_io_sample(tchart, sample->tid, IOTYPE_READ, @@ -875,8 +872,8 @@ process_enter_read(struct timechart *tchart, static int process_exit_read(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long ret = perf_sample__intval(sample, "ret"); return pid_end_io_sample(tchart, sample->tid, IOTYPE_READ, @@ -885,8 +882,8 @@ process_exit_read(struct timechart *tchart, static int process_enter_write(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long fd = perf_sample__intval(sample, "fd"); return pid_begin_io_sample(tchart, sample->tid, IOTYPE_WRITE, @@ -895,8 +892,8 @@ process_enter_write(struct timechart *tchart, static int process_exit_write(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long ret = perf_sample__intval(sample, "ret"); return pid_end_io_sample(tchart, sample->tid, IOTYPE_WRITE, @@ -905,8 +902,8 @@ process_exit_write(struct timechart *tchart, static int process_enter_sync(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long fd = perf_sample__intval(sample, "fd"); return pid_begin_io_sample(tchart, sample->tid, IOTYPE_SYNC, @@ -915,8 +912,8 @@ process_enter_sync(struct timechart *tchart, static int process_exit_sync(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long ret = perf_sample__intval(sample, "ret"); return pid_end_io_sample(tchart, sample->tid, IOTYPE_SYNC, @@ -925,8 +922,8 @@ process_exit_sync(struct timechart *tchart, static int process_enter_tx(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long fd = perf_sample__intval(sample, "fd"); return pid_begin_io_sample(tchart, sample->tid, IOTYPE_TX, @@ -935,8 +932,8 @@ process_enter_tx(struct timechart *tchart, static int process_exit_tx(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long ret = perf_sample__intval(sample, "ret"); return pid_end_io_sample(tchart, sample->tid, IOTYPE_TX, @@ -945,8 +942,8 @@ process_exit_tx(struct timechart *tchart, static int process_enter_rx(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long fd = perf_sample__intval(sample, "fd"); return pid_begin_io_sample(tchart, sample->tid, IOTYPE_RX, @@ -955,8 +952,8 @@ process_enter_rx(struct timechart *tchart, static int process_exit_rx(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long ret = perf_sample__intval(sample, "ret"); return pid_end_io_sample(tchart, sample->tid, IOTYPE_RX, @@ -965,8 +962,8 @@ process_exit_rx(struct timechart *tchart, static int process_enter_poll(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long fd = perf_sample__intval(sample, "fd"); return pid_begin_io_sample(tchart, sample->tid, IOTYPE_POLL, @@ -975,8 +972,8 @@ process_enter_poll(struct timechart *tchart, static int process_exit_poll(struct timechart *tchart, - struct evsel *evsel __maybe_unused, - struct perf_sample *sample) + struct perf_sample *sample, + const char *backtrace __maybe_unused) { long ret = perf_sample__intval(sample, "ret"); return pid_end_io_sample(tchart, sample->tid, IOTYPE_POLL, -- 2.53.0.1213.gd9a14994de-goog