Add SurfaceFlinger tracing
Bug: 64831661
Test: adb shell service call SurfaceFlinger 1025 i32 1 && adb shell service call SurfaceFlinger 1025 i32 0
Change-Id: Idf272715b52aee5d2d366fbd4a96b0afaaf2d0c7
diff --git a/services/surfaceflinger/layerproto/Android.bp b/services/surfaceflinger/layerproto/Android.bp
index 4c52bdf..8eb218c 100644
--- a/services/surfaceflinger/layerproto/Android.bp
+++ b/services/surfaceflinger/layerproto/Android.bp
@@ -6,6 +6,7 @@
srcs: [
"LayerProtoParser.cpp",
"layers.proto",
+ "layerstrace.proto",
],
shared_libs: [
diff --git a/services/surfaceflinger/layerproto/include/layerproto/LayerProtoHeader.h b/services/surfaceflinger/layerproto/include/layerproto/LayerProtoHeader.h
index 054d4f2..f560562 100644
--- a/services/surfaceflinger/layerproto/include/layerproto/LayerProtoHeader.h
+++ b/services/surfaceflinger/layerproto/include/layerproto/LayerProtoHeader.h
@@ -21,3 +21,4 @@
// This file should be included instead of directly including layer.b.h
#pragma GCC system_header
#include <layers.pb.h>
+#include <layerstrace.pb.h>
diff --git a/services/surfaceflinger/layerproto/layerstrace.proto b/services/surfaceflinger/layerproto/layerstrace.proto
new file mode 100644
index 0000000..bee17d2
--- /dev/null
+++ b/services/surfaceflinger/layerproto/layerstrace.proto
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+syntax = "proto2";
+option optimize_for = LITE_RUNTIME;
+
+import "frameworks/native/services/surfaceflinger/layerproto/layers.proto";
+
+package android.surfaceflinger;
+
+/* represents a file full of surface flinger trace entries.
+ Encoded, it should start with 0x4c 0x59 0x52 0x54 0x52 0x41 0x43 0x45 (.LYRTRACE), such
+ that they can be easily identified. */
+message LayersTraceFileProto {
+
+ /* constant; MAGIC_NUMBER = (long) MAGIC_NUMBER_H << 32 | MagicNumber.MAGIC_NUMBER_L
+ (this is needed because enums have to be 32 bits and there's no nice way to put 64bit
+ constants into .proto files. */
+ enum MagicNumber {
+ INVALID = 0;
+ MAGIC_NUMBER_L = 0x5452594c; /* LYRT (little-endian ASCII) */
+ MAGIC_NUMBER_H = 0x45434152; /* RACE (little-endian ASCII) */
+ }
+
+ optional fixed64 magic_number = 1; /* Must be the first field, set to value in MagicNumber */
+ repeated LayersTraceProto entry = 2;
+}
+
+/* one window manager trace entry. */
+message LayersTraceProto {
+ /* required: elapsed realtime in nanos since boot of when this entry was logged */
+ optional fixed64 elapsed_realtime_nanos = 1;
+
+ /* where the trace originated */
+ optional string where = 2;
+
+ optional LayersProto layers = 3;
+}