commit 29ff84440ef0f08615349ff1f87678c37a9e03a3
author Sami Kyostila <skyostil@google.com> Tue Nov 26 16:05:13 2019 +0000
committer Sami Kyostila <skyostil@google.com> Tue Nov 26 16:05:13 2019 +0000
tree 0af70bde4f454b0e53074d9711b2587cbb9234ed
parent e524732d0668808636b5ccd33dc63c8798241f87

TrackEvent: Add support for debug annotations

This patch makes it possible to attach one or two debug annotations to a
trace event, e.g.:

    TRACE_EVENT_BEGIN("cat", "Name", "color", 0xffaaccee, "density", .5f);

The user can also specify a custom debug annotation object that will
get serialized to the DebugAnnotation proto through a callback. This is
intended for implementing the legacy TracedValue system on top of
TrackEvent.

Bug: 132678367
Change-Id: I769c2eb346d3bdfac50158a333481f83962bfb6b

Android.bp

diff --git a/Android.bp b/Android.bp
index 49b651e..0cc92d8 100644
--- a/Android.bp
+++ b/Android.bp
@@ -5079,6 +5079,7 @@
   name: "perfetto_src_tracing_client_api",
   srcs: [
     "src/tracing/data_source.cc",
+    "src/tracing/debug_annotation.cc",
     "src/tracing/event_context.cc",
     "src/tracing/internal/in_process_tracing_backend.cc",
     "src/tracing/internal/system_tracing_backend.cc",