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db50b03553
This adds Perfetto support to WebRTC with a GN flag rtc_use_perfetto. The configuration of perfetto depends on whether or not webrtc is build within Chrome or not. When in Chrome, WebRTC will depend on //third_party/perfetto:libperfetto. When building standalone, specific includes required for Perfetto are exposed with the library webrtc_libperfetto. The perfetto trace API is exposed with a header export in trace_event.h which is used instead of the legacy API. The addition of Perfetto means there are 4 compilation modes for tracing in WebRTC, 1. No tracing implementation. 2. Legacy tracing (AddTraceEvent/GetCategoryEnabled). 3.a. Perfetto statically linked (webrtc_libperfetto). 3.b. Perfetto in Chrome (Chrome's libperfetto). This CL removes the tracing expectations from rtc_stats_integrationtest.cc because those directly used the old API. Integration into Chrome is a follow up CL which depends on https://chromium-review.googlesource.com/c/chromium/src/+/5471691. Tested: Ran Chrome with Perfetto and traces appear. WebRTC Unit test tracing working: https://ui.perfetto.dev/#!?s=04ea2613ea36b814394639a1ec4b60be5b5097527f1a485995ecc13469885468 Bug: webrtc:15917 Change-Id: I537d79dc247c2b759689910c621087286a4d8fdc Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347880 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Auto-Submit: Evan Shrubsole <eshr@google.com> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Mikhail Khokhlov <khokhlov@google.com> Cr-Commit-Position: refs/heads/main@{#42166}
71 lines
3 KiB
Text
71 lines
3 KiB
Text
# Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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#
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# Use of this source code is governed by a BSD-style license
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# that can be found in the LICENSE file in the root of the source
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# tree. An additional intellectual property rights grant can be found
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# in the file PATENTS. All contributing project authors may
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# be found in the AUTHORS file in the root of the source tree.
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# Some non-Chromium builds don't support building java targets.
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enable_java_templates = true
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# Enables assertions on safety checks in libc++.
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enable_safe_libcxx = true
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# Don't set this variable to true when building stadalone WebRTC, it is
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# only needed to support both WebRTC standalone and Chromium builds.
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build_with_chromium = false
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use_cxx17 = !is_android
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# Use our own suppressions files.
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asan_suppressions_file = "//build/sanitizers/asan_suppressions.cc"
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lsan_suppressions_file = "//tools_webrtc/sanitizers/lsan_suppressions_webrtc.cc"
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tsan_suppressions_file = "//tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc"
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msan_ignorelist_path =
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rebase_path("//tools_webrtc/msan/suppressions.txt", root_build_dir)
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ubsan_ignorelist_path =
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rebase_path("//tools_webrtc/ubsan/suppressions.txt", root_build_dir)
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ubsan_vptr_ignorelist_path =
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rebase_path("//tools_webrtc/ubsan/vptr_suppressions.txt", root_build_dir)
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# For Chromium, Android 32-bit non-component, non-clang builds hit a 4GiB size
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# limit, making them requiring symbol_level=2. WebRTC doesn't hit that problem
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# so we just ignore that assert. See https://crbug.com/648948 for more info.
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ignore_elf32_limitations = true
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perfetto_build_with_embedder = true
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enable_perfetto_trace_processor = true
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# Use bundled hermetic Xcode installation maintainted by Chromium,
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# except for local iOS builds where it's unsupported.
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# Allow for mac cross compile on linux machines.
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if (host_os == "mac" || host_os == "linux") {
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_result = exec_script("//build/mac/should_use_hermetic_xcode.py",
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[ target_os ],
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"value")
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assert(_result != 2,
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"Do not allow building targets with the default " +
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"hermetic toolchain if the minimum OS version is not met.")
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use_system_xcode = _result == 0
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}
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declare_args() {
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# WebRTC doesn't depend on //base from production code but only for testing
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# purposes. In any case, it doesn't depend on //third_party/perfetto which
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# is used for base tracing, so this feature is disabled.
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enable_base_tracing = false
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use_perfetto_client_library = false
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use_perfetto_trace_processor = false
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# Limits the defined //third_party/android_deps targets to only "buildCompile"
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# and "buildCompileNoDeps" targets. This is useful for third-party
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# repositories which do not use JUnit tests. For instance,
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# limit_android_deps == true removes "gn gen" requirement for
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# //third_party/robolectric .
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limit_android_deps = false
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# If true, it assumes that //third_party/abseil-cpp is an available
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# dependency for googletest.
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gtest_enable_absl_printers = true
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}
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