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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}
13 lines
535 B
C++
13 lines
535 B
C++
/*
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* Copyright (c) 2024 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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*/
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#include "rtc_base/trace_categories.h"
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PERFETTO_TRACK_EVENT_STATIC_STORAGE_IN_NAMESPACE_WITH_ATTRS(webrtc, RTC_EXPORT);
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