commit 97c338198fcdabc5772cb899da2e15cb7e6b8bf4
author Daniele Di Proietto <ddiproietto@google.com> Mon Feb 21 13:49:52 2022 +0000
committer Daniele Di Proietto <ddiproietto@google.com> Thu Feb 24 13:16:42 2022 +0000
tree fdf3fce5c91dc20d33c19b334370c2797f21d8e8
parent 788302a1e8520808a33086fc5cdf16af842d428f

Export atrace categories from ftrace data source descriptor

traced_probes invokes `atrace --list_categories` on startup.

Running atrace --list-categories appears to take ~120 ms.

This is going to be used by traceur, which cannot run atrace directly.

tested:

```
adb shell perfetto --query-raw | protoc --decode=perfetto.protos.TracingServiceState -I ~/master/external/perfetto ~/master/external/perfetto/protos/perfetto/trace/perfetto_trace.proto
```

Bug: 219393750
Change-Id: Ie97533317dfcb14fd1a452e5e30cf77cc8a3c871

BUILD

diff --git a/BUILD b/BUILD
index 283d9ce..5f047e5 100644
--- a/BUILD
+++ b/BUILD
@@ -2000,6 +2000,7 @@
         "protos/perfetto/common/commit_data_request.proto",
         "protos/perfetto/common/data_source_descriptor.proto",
         "protos/perfetto/common/descriptor.proto",
+        "protos/perfetto/common/ftrace_descriptor.proto",
         "protos/perfetto/common/gpu_counter_descriptor.proto",
         "protos/perfetto/common/interceptor_descriptor.proto",
         "protos/perfetto/common/observable_events.proto",