Merge "adbd: add a script to generate coverage information." am: 1b81360c9e

Change-Id: Icf162b5ddcbb3ef70d2b1c7cd1ef7e62fa4fb42a

adb/coverage.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+# Copyright (C) 2020 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.
+
+set -euxo pipefail
+
+adb root
+adb shell logcat -c -G128M
+adb shell setprop persist.adb.trace_mask 1
+adb shell killall adbd
+
+# TODO: Add `adb transport-id` and wait-for-offline on it.
+sleep 5
+
+adb wait-for-device shell rm "/data/misc/trace/*"
+
+./test_device.py
+
+# Dump traces from the currently running adbd.
+adb shell killall -37 adbd
+
+echo Waiting for adbd to finish dumping traces
+sleep 5
+
+TRACEDIR=`mktemp -d`
+adb pull /data/misc/trace "$TRACEDIR"/
+echo Pulled traces to $TRACEDIR
+
+
+# Identify which of the trace files are actually adbd, in case something else exited simultaneously.
+ADBD_PIDS=$(adb shell "logcat -d -s adbd --format=process | grep 'adbd started' | cut -c 3-7 | tr -d ' ' | sort | uniq")
+mkdir "$TRACEDIR"/adbd_traces
+
+adb shell 'setprop persist.adb.trace_mask 0; killall adbd'
+
+IFS=$'\n'
+for PID in $ADBD_PIDS; do
+  cp "$TRACEDIR"/trace/clang-$PID-*.profraw "$TRACEDIR"/adbd_traces 2>/dev/null || true
+done
+
+llvm-profdata merge --output="$TRACEDIR"/adbd.profdata "$TRACEDIR"/adbd_traces/*
+
+cd $ANDROID_BUILD_TOP
+llvm-cov report --instr-profile="$TRACEDIR"/adbd.profdata \
+  $ANDROID_PRODUCT_OUT/apex/com.android.adbd/bin/adbd \
+  --show-region-summary=false \
+  /proc/self/cwd/system/core/adb
+
+llvm-cov show --instr-profile="$TRACEDIR"/adbd.profdata \
+  $ANDROID_PRODUCT_OUT/apex/com.android.adbd/bin/adbd \
+  --format=html \
+  /proc/self/cwd/system/core/adb > $TRACEDIR/report.html