From nobody Mon Oct 6 06:46:45 2025 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (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 4A32E2ED861 for ; Thu, 24 Jul 2025 16:33:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753374826; cv=none; b=KwVstRjkuCA/crpIzR6O9q/zE0Nw9+LNk3NmItBeQ+AOjDOI99zPgMTxplIaIqRYViPn76NLi/RdpT4kzI4a8jgduAlDTabRWF4adEkAZe5aTOwRnZXK5XAHXB8ZdxanUPOCeUPGIorMWYxkh0whx6KZIC3lG4Rxgg2XmR4RrVw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753374826; c=relaxed/simple; bh=7nZIiiIn++uSLOhLUk9vUxm/WKkVS4OwTThT0yMdM0E=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=l1l2loZHBdxViVtEW6HIHIMHw8+qhreVIPgW2kwFWyeS3Iubv5VZ1YbRZ6uX+tNAIveKY+wumMAnuFLLxR3kaOy9XykWpaAI0Rme3roUGdTxYkj5x+NrUiH5AblHwrz4bcyuGxZV8zDCA0VxtJjCdvcUAJ4Z8EhsQfxmdboEt4Y= 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=TpilkqaT; arc=none smtp.client-ip=209.85.216.73 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="TpilkqaT" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-311d670ad35so1106270a91.3 for ; Thu, 24 Jul 2025 09:33:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1753374825; x=1753979625; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=j4ATCR3gS0GLP8ySUZk5tVezlk+x+k580IPZRgyjTI4=; b=TpilkqaTdbDDH09JCjiCEAC/Nq8x9xJjwblexJu2esFnjc4qGNRUcBq6yeTmg2goHA 3aC1xRq269Oai10uaoEioAMZgmUSqYcxb/Bp9oPPl71vQS972v1HW9fGx09uhIX1/yhF gQPu5ubOYOo9+CBAGKc2apJFHGjHpW9y3le0C9IJiCSFV9p/mJQ1Rb4UbZ4HTPD8a2iH /hEVCnjdyc1RAS3dglMkihLxqz1bd5CFdtz0OfzAuwd21mcsqoq30++5keCmNuYa7jaK yVTRYs4ZEa73oeLcHVbf6y//jEoym+hcfWbp+Z7/jnVsXGokZC4IQp/FWC7KNtdIS2Do LFtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753374825; x=1753979625; h=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=j4ATCR3gS0GLP8ySUZk5tVezlk+x+k580IPZRgyjTI4=; b=hzr0gDwrJ8jhuqCuXsTNl4N6BRcxHRs8HhYe/LZtCVbozVp2j5CiNAfP2D+t5FkGYH keZyqIzxfrWjEE65w7QDDu9FgMK3gaQao0vJBfboQjd/Svz3Os6G1Kb9MUPbHl6EM7CR yV0wLAg6PylzK4rIk5Do4xymQOjXo6/V/2dwbyNWq8hg0p7rugjeCWO7tnTP6OVa4dwy Ci9XCSQNk4wpGen9VZl1ODYmsPcJygMDTK3+zSnzTY9a4mJUyPqm2c5Wu7gMY593zmae VMEUWV39vZ3b4VeYZH7jYkyG/rIOlL+3hpkg3agkEl101QgI1x08s0ua16WLwYyRdxTg XNCQ== X-Forwarded-Encrypted: i=1; AJvYcCV7goB9GtP3zbBUeXhKNxZxft0fTBkH85YkzFGp5+1P/NKlg/AAdc0HSgTklE8zHURID2JxiJMk/KKftZA=@vger.kernel.org X-Gm-Message-State: AOJu0YxtJMCM6x/hv4MoCwc3CV6H/Bi4SguXnoH+FnI2gVpDvn9g7PjC wJ+jSzOygc5+ldWmpVYOpUZ8bhnAmlbQowxKuPYw632HLQ9eu8ldsrtFPNuMZhrxNMN0fdCHMb4 wzKMvqk5SlA== X-Google-Smtp-Source: AGHT+IG9P+0/1FRepvIABmSkJ3cwZnJnUD4EaW9KMNoS8pG7zfn4lxon2/8z1BpHnrz4L3+dyy5Bk56cT/Y1 X-Received: from pjbsd5.prod.google.com ([2002:a17:90b:5145:b0:311:485b:d057]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:582e:b0:313:14b5:2538 with SMTP id 98e67ed59e1d1-31e50859d80mr9985080a91.35.1753374824262; Thu, 24 Jul 2025 09:33:44 -0700 (PDT) Date: Thu, 24 Jul 2025 09:32:52 -0700 In-Reply-To: <20250724163302.596743-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250724163302.596743-1-irogers@google.com> X-Mailer: git-send-email 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250724163302.596743-13-irogers@google.com> Subject: [PATCH v6 12/22] perf test: Avoid use perf_env From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , "Masami Hiramatsu (Google)" , Ravi Bangoria , Charlie Jenkins , Colin Ian King , Andi Kleen , Dmitry Vyukov , Graham Woodward , Ilkka Koskinen , Zhongqiu Han , Yicong Yang , Athira Rajeev , Kajol Jain , Li Huafei , "Steinar H. Gunderson" , Stephen Brennan , Chun-Tse Shao , Yujie Liu , "Dr. David Alan Gilbert" , Levi Yun , Howard Chu , Weilin Wang , Thomas Falcon , Matt Fleming , "=?UTF-8?q?Krzysztof=20=C5=81opatowski?=" , Zixian Cai , Steve Clevenger , Ben Gainey , Chaitanya S Prakash , Martin Liska , "=?UTF-8?q?Martin=20Li=C5=A1ka?=" , Song Liu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The perf_env global variable holds the host perf_env data but its use is hit and miss. Switch to using local perf_env variables and ensure scoped perf_env__init and perf_env__exit. This loses command line setting of the perf_env, but this doesn't matter for tests. So the perf_env is fully initialized, clear it with memset in perf_env__init. Signed-off-by: Ian Rogers --- tools/perf/tests/code-reading.c | 5 +++- tools/perf/tests/dlfilter-test.c | 50 ++++++++++++++++++-------------- tools/perf/util/env.c | 1 + 3 files changed, 33 insertions(+), 23 deletions(-) diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-readin= g.c index 6efb6b4bbcce..0ec7004f90fe 100644 --- a/tools/perf/tests/code-reading.c +++ b/tools/perf/tests/code-reading.c @@ -651,11 +651,13 @@ static int do_test_code_reading(bool try_kcore) struct dso *dso; const char *events[] =3D { "cycles", "cycles:u", "cpu-clock", "cpu-clock:= u", NULL }; int evidx =3D 0; + struct perf_env host_env; =20 pid =3D getpid(); =20 machine =3D machine__new_host(); - machine->env =3D &perf_env; + perf_env__init(&host_env); + machine->env =3D &host_env; =20 ret =3D machine__create_kernel_maps(machine); if (ret < 0) { @@ -791,6 +793,7 @@ static int do_test_code_reading(bool try_kcore) perf_cpu_map__put(cpus); perf_thread_map__put(threads); machine__delete(machine); + perf_env__exit(&host_env); =20 return err; } diff --git a/tools/perf/tests/dlfilter-test.c b/tools/perf/tests/dlfilter-t= est.c index 54f59d1246bc..6427e3382711 100644 --- a/tools/perf/tests/dlfilter-test.c +++ b/tools/perf/tests/dlfilter-test.c @@ -319,11 +319,12 @@ static int run_perf_script(struct test_data *td) =20 static int test__dlfilter_test(struct test_data *td) { + struct perf_env host_env; u64 sample_type =3D TEST_SAMPLE_TYPE; pid_t pid =3D 12345; pid_t tid =3D 12346; u64 id =3D 99; - int err; + int err =3D TEST_OK; =20 if (get_dlfilters_path(td->name, td->dlfilters, PATH_MAX)) return test_result("dlfilters not found", TEST_SKIP); @@ -353,37 +354,42 @@ static int test__dlfilter_test(struct test_data *td) =20 pr_debug("Creating new host machine structure\n"); td->machine =3D machine__new_host(); - td->machine->env =3D &perf_env; + perf_env__init(&host_env); + td->machine->env =3D &host_env; =20 td->fd =3D creat(td->perf_data_file_name, 0644); if (td->fd < 0) return test_result("Failed to create test perf.data file", TEST_FAIL); =20 err =3D perf_header__write_pipe(td->fd); - if (err < 0) - return test_result("perf_header__write_pipe() failed", TEST_FAIL); - + if (err < 0) { + err =3D test_result("perf_header__write_pipe() failed", TEST_FAIL); + goto out; + } err =3D write_attr(td, sample_type, &id); - if (err) - return test_result("perf_event__synthesize_attr() failed", TEST_FAIL); - - if (write_comm(td->fd, pid, tid, "test-prog")) - return TEST_FAIL; - - if (write_mmap(td->fd, pid, tid, MAP_START, 0x10000, 0, td->prog_file_nam= e)) - return TEST_FAIL; - - if (write_sample(td, sample_type, id, pid, tid) !=3D TEST_OK) - return TEST_FAIL; - + if (err) { + err =3D test_result("perf_event__synthesize_attr() failed", TEST_FAIL); + goto out; + } + if (write_comm(td->fd, pid, tid, "test-prog")) { + err =3D TEST_FAIL; + goto out; + } + if (write_mmap(td->fd, pid, tid, MAP_START, 0x10000, 0, td->prog_file_nam= e)) { + err =3D TEST_FAIL; + goto out; + } + if (write_sample(td, sample_type, id, pid, tid) !=3D TEST_OK) { + err =3D TEST_FAIL; + goto out; + } if (verbose > 1) system_cmd("%s script -i %s -D", td->perf, td->perf_data_file_name); =20 - err =3D run_perf_script(td); - if (err) - return TEST_FAIL; - - return TEST_OK; + err =3D run_perf_script(td) ? TEST_FAIL : TEST_OK; +out: + perf_env__exit(&host_env); + return err; } =20 static void unlink_path(const char *path) diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index ee51378fb0d9..c09159083bf0 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -271,6 +271,7 @@ void perf_env__exit(struct perf_env *env) =20 void perf_env__init(struct perf_env *env) { + memset(env, 0, sizeof(*env)); #ifdef HAVE_LIBBPF_SUPPORT env->bpf_progs.infos =3D RB_ROOT; env->bpf_progs.btfs =3D RB_ROOT; --=20 2.50.0.727.gbf7dc18ff4-goog