From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) (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 3D5FE8F7D for ; Thu, 24 Jul 2025 16:33:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753374795; cv=none; b=SChVzmQv8qJvL6l6cyFb7aMwFWSQ6WKX0bkXKqC5aHOIaTbBEAApSTOG1eMkllIKikMQdV1EtM2fjN9UswiBB3Tu/yrBKk2jdNFDicoF6RdvIisafLq6qWkP+DrA+nVd376a82mkulZtq2wvRk4wQjobUs28+viDCm4TwolQJTU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753374795; c=relaxed/simple; bh=GkagUxGPd40m21OGzhG1u2Wfyqr+vADuEMC8AVe0mzM=; h=Date:Mime-Version:Message-ID:Subject:From:To:Content-Type; b=fZtKSEVcsi8jyx+dZOxaoYzRJG5xBjyfLJcc125z4gZYO8TUxPFqxmO/KzHjhvUtn0y2SATPnyP2BqRdRTvK9BHgmNmyPluBe4E2xASSQ3cP7QxpJkXZ5DAmmcu6dVR7t85RL0zuj3WFlNYHpufBm1DdgaFgbYTq4IxgDiKTGkc= 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=tTRuIRkq; arc=none smtp.client-ip=209.85.214.201 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="tTRuIRkq" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-23536f7c2d7so19418575ad.2 for ; Thu, 24 Jul 2025 09:33:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1753374794; x=1753979594; darn=vger.kernel.org; h=to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=PMUeODdFKN3+xA1VGSzNxeyp9RhfPqFKimrtY3VuKmo=; b=tTRuIRkqOoPKB6XMXzYasPzaVMHfNDIddXv7zFElOsmn+6dIw0P0QYuZ+s3Ad3ZRol +0HoYH5gv5KoFQ1IOOVb4zVDR+3IwSZYGPi2P72BUbJIVtweyOksyVvE7wqsSl9Yo6DO tgVaeTPZfnOfRK4CRSViLNAWh4v3JD6TUTMCxY9csmPlU7FeOGOAcFmB9vpohPpFYeXj JUDsvvD5VowVIEAdprjRQN5q6BI7ebzF87ykdiahcnMtHKgitgGYuzmYBaDbkLNkouJN iWCs3SkgXtUxV8MLD2cPVX6LwvBVcCHQjSo8r1xRnNdBaSAUz41Pl1yQQuToDLmurR13 bp+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753374794; x=1753979594; h=to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=PMUeODdFKN3+xA1VGSzNxeyp9RhfPqFKimrtY3VuKmo=; b=jAId53batIGmZsqrNilfeAYe2+cyHE5pu+9s2YWC8JXX+3jfaKrYkmIHbKI3W3dNUu bv0qtxWtNlk2wGawfANpyTvfJrSaPgvxjFEpR+HUdrCBBOvCxBjWMIHXaNwvQCQNpMKt ex6JcTZG9jZe97lOgpkSox0P9FAapqJEpr0czH7/gvrJaMLQ2ADUoGytZmJLuxgS65rR lUrK7LPJt9s/kKRYeo4hKxKSPdY7hP9qXGqncEVykyUoeWVGQr0BuZjU+X6eDM7H0HQl aySNaRQgEMb9mMnAyYGVSAyDuun/zkA1c9raMhB1JecBUmKAm87ymRpWbsne0pD6tlkk kCfQ== X-Forwarded-Encrypted: i=1; AJvYcCU0QbRXL73mKH9uF+AUr33X2d3HiObIzGp2m9HsUCdracUwUFZfguta5+4jnYxcoeoA6tYiJoHcMNZvALQ=@vger.kernel.org X-Gm-Message-State: AOJu0YzADD/f+0wT6vYOAYguwQgzdd137IAGbALFy8GzydBJVGPEXJOs lr6J4b4wPne5WsvMsgHB6hIPJi9ozY/pIoH/b6ypgyBIyuINnlAC6f0nswGP5DRgbKGnHR7C7BX dfP2XO8Du7Q== X-Google-Smtp-Source: AGHT+IEg88zwA+Qq5dqXP51SbEt5Xx2TG50/3JFk/LwUBXxURdK/VprD1tC1Unk3UpZ2ejVxo8TpC77njy70 X-Received: from plbkb7.prod.google.com ([2002:a17:903:3387:b0:223:690d:fd84]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:ef43:b0:235:f078:4746 with SMTP id d9443c01a7336-23f981b196cmr109807915ad.42.1753374793548; Thu, 24 Jul 2025 09:33:13 -0700 (PDT) Date: Thu, 24 Jul 2025 09:32:40 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250724163302.596743-1-irogers@google.com> Subject: [PATCH v6 00/22] perf: Make code more generic with modern defaults 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-Type: text/plain; charset="UTF-8" This patch series combines: "perf: Default use of build IDs and improvements" https://lore.kernel.org/lkml/20250428213409.1417584-1-irogers@google.com/ "Remove global perf_env" https://lore.kernel.org/lkml/20250527064153.149939-1-irogers@google.com/ "Generic weight struct, use env for sort key and header" https://lore.kernel.org/lkml/20250521135500.677508-1-irogers@google.com/ This is done as the last 2 series depend on each other and the cleanups in the 1st have the potential to conflict with them. "perf: Default use of build IDs and improvements" Build ID mmap2 events have been available since Linux v5.12 and avoid certain races. Enable these by default as discussed in: https://lore.kernel.org/linux-perf-users/CAP-5=fXP7jN_QrGUcd55_QH5J-Y-FCaJ6=NaHVtyx0oyNh8_-Q@mail.gmail.com/ The dso_id is used to indentify a DSO that may change by being overwritten. The inode generation isn't present in /proc/pid/maps and so was already only optionally filled in. With build ID mmap events the other major, minor and inode varialbes aren't filled in. Change the dso_id implementation to make optional values explicit, rather than injecting a dso_id we want to improve it during find operations, add the buildid to the dso_id for sorting and so that matching fails when build IDs vary between DSOs. Mark the callchain for buildids and not just the sample IP, fixing missing DSOs. Fix sample__for_each_callchain_node to populate the map even when symbols aren't computed. Other minor bits of build_id clean up. "Remove global perf_env" The global perf_env is used to hold host information, but it is also used as a fallback in a number of cases where the information may be bogus. Restructure the code so that the perf_env of the session is accessed. When necessary a locally scoped host perf_env is created and used. Cleaning up the inconsistency was requested by Kan Liang in: https://lore.kernel.org/lkml/c56c9e23-cf6e-4040-aee8-da13d5157dcf@linux.intel.com/ "Generic weight struct, use env for sort key and header" The arch directory is a barrier to cross-platform development as files and behaviors within it are inherently platform specific. Sample parsing should be generic but the PERF_SAMPLE_WEIGHT_STRUCT handling was only present if building for x86 or powerpc. The sort key and headers should be specific to the session that is being executed and not to the machine perf is being run upon. These patches clean this and associated code up. v6: Fix v5 review feedback from Namhyung (thanks Namhyung!). v5: Drop merged 1st patch. Rebase and fix breakages in new/changed code. v4: Shorten to "weight3" histogram and sample variable, but comment its use (Namhyung). Fix evsel__env use in `perf trace` where no session was present. Assert the session is never passed a NULL host_env when there is no data file and its associated env. Ian Rogers (22): perf build-id: Reduce size of "size" variable perf build-id: Truncate to avoid overflowing the build_id data perf build-id: Change sprintf functions to snprintf perf build-id: Mark DSO in sample callchains perf build-id: Ensure struct build_id is empty before use perf dso: Move build_id to dso_id perf jitdump: Directly mark the jitdump DSO perf record: Make --buildid-mmap the default perf session: Add accessor for session->header.env perf evlist: Change env variable to session perf header: Clean up use of perf_env perf test: Avoid use perf_env perf session: Add host_env argument to perf_session__new perf top: Make perf_env locally scoped perf bench synthesize: Avoid use of global perf_env perf machine: Explicitly pass in host perf_env perf auxtrace: Pass perf_env from session through to mmap read perf trace: Avoid global perf_env with evsel__env perf env: Remove global perf_env perf sample: Remove arch notion of sample parsing perf test: Move PERF_SAMPLE_WEIGHT_STRUCT parsing to common test perf sort: Use perf_env to set arch sort keys and header tools/perf/Documentation/perf-record.txt | 4 +- tools/perf/arch/powerpc/util/Build | 1 - tools/perf/arch/powerpc/util/event.c | 60 ------ tools/perf/arch/x86/include/arch-tests.h | 1 - tools/perf/arch/x86/tests/Build | 1 - tools/perf/arch/x86/tests/arch-tests.c | 2 - tools/perf/arch/x86/tests/sample-parsing.c | 125 ------------ tools/perf/arch/x86/util/event.c | 46 ----- tools/perf/bench/inject-buildid.c | 2 +- tools/perf/bench/synthesize.c | 27 ++- tools/perf/builtin-annotate.c | 6 +- tools/perf/builtin-buildid-cache.c | 22 +-- tools/perf/builtin-buildid-list.c | 11 +- tools/perf/builtin-c2c.c | 69 ++++--- tools/perf/builtin-diff.c | 2 +- tools/perf/builtin-inject.c | 41 ++-- tools/perf/builtin-kallsyms.c | 21 ++- tools/perf/builtin-kmem.c | 2 +- tools/perf/builtin-kvm.c | 4 +- tools/perf/builtin-kwork.c | 2 +- tools/perf/builtin-lock.c | 4 +- tools/perf/builtin-mem.c | 2 +- tools/perf/builtin-record.c | 64 ++++--- tools/perf/builtin-report.c | 27 ++- tools/perf/builtin-sched.c | 8 +- tools/perf/builtin-script.c | 18 +- tools/perf/builtin-stat.c | 23 +-- tools/perf/builtin-timechart.c | 2 +- tools/perf/builtin-top.c | 60 +++--- tools/perf/builtin-trace.c | 38 ++-- tools/perf/include/perf/perf_dlfilter.h | 2 +- tools/perf/perf.c | 3 - tools/perf/tests/code-reading.c | 6 +- tools/perf/tests/dlfilter-test.c | 51 ++--- tools/perf/tests/dwarf-unwind.c | 10 +- tools/perf/tests/hists_cumulate.c | 8 +- tools/perf/tests/hists_filter.c | 8 +- tools/perf/tests/hists_link.c | 8 +- tools/perf/tests/hists_output.c | 10 +- tools/perf/tests/mmap-thread-lookup.c | 6 +- tools/perf/tests/pe-file-parsing.c | 2 +- tools/perf/tests/sample-parsing.c | 14 ++ tools/perf/tests/sdt.c | 2 +- tools/perf/tests/symbols.c | 12 +- tools/perf/tests/topology.c | 39 ++-- tools/perf/ui/browser.h | 4 +- tools/perf/ui/browsers/header.c | 4 +- tools/perf/ui/browsers/hists.c | 2 +- tools/perf/util/amd-sample-raw.c | 2 +- tools/perf/util/arm-spe.c | 2 +- tools/perf/util/auxtrace.c | 13 +- tools/perf/util/auxtrace.h | 6 +- tools/perf/util/bpf-event.c | 2 +- tools/perf/util/branch.c | 2 +- tools/perf/util/build-id.c | 63 ++++--- tools/perf/util/build-id.h | 8 +- tools/perf/util/data-convert-bt.c | 16 +- tools/perf/util/data-convert-json.c | 36 ++-- tools/perf/util/debug.c | 9 +- tools/perf/util/debuginfo.c | 2 +- tools/perf/util/disasm.c | 2 +- tools/perf/util/dlfilter.c | 2 +- tools/perf/util/dso.c | 111 ++++++----- tools/perf/util/dso.h | 75 ++++---- tools/perf/util/dsos.c | 20 +- tools/perf/util/env.c | 3 +- tools/perf/util/env.h | 2 - tools/perf/util/event.c | 2 +- tools/perf/util/event.h | 5 - tools/perf/util/evlist.h | 2 +- tools/perf/util/evsel.c | 29 ++- tools/perf/util/evsel.h | 1 + tools/perf/util/header.c | 178 ++++++++++-------- tools/perf/util/hist.c | 4 +- tools/perf/util/hist.h | 3 +- tools/perf/util/intel-tpebs.c | 4 +- tools/perf/util/jitdump.c | 21 ++- tools/perf/util/machine.c | 44 ++--- tools/perf/util/machine.h | 6 +- tools/perf/util/map.c | 15 +- tools/perf/util/map.h | 5 +- tools/perf/util/probe-event.c | 10 +- tools/perf/util/probe-file.c | 4 +- tools/perf/util/probe-finder.c | 5 +- tools/perf/util/s390-cpumsf.c | 2 +- tools/perf/util/sample-raw.c | 7 +- tools/perf/util/sample-raw.h | 2 +- tools/perf/util/sample.h | 6 +- .../scripting-engines/trace-event-python.c | 7 +- tools/perf/util/session.c | 19 +- tools/perf/util/session.h | 7 +- tools/perf/util/sort.c | 95 ++++++---- tools/perf/util/sort.h | 5 +- tools/perf/util/symbol-minimal.c | 2 +- tools/perf/util/symbol.c | 7 +- tools/perf/util/symbol_conf.h | 2 +- tools/perf/util/synthetic-events.c | 54 ++++-- tools/perf/util/tool.c | 2 +- 98 files changed, 923 insertions(+), 894 deletions(-) delete mode 100644 tools/perf/arch/powerpc/util/event.c delete mode 100644 tools/perf/arch/x86/tests/sample-parsing.c -- 2.50.0.727.gbf7dc18ff4-goog