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#!/bin/sh
# Copyright (C) 2014 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.
#
# acov is a tool for gathering coverage information from a device and generating
# a report from that information. To use:
#
# 1. sudo apt-get install lcov
# 2. Build application/library with coverage information.
# * make NATIVE_COVERAGE=true NATIVE_COVERAGE_PATHS='*'
# 3. Push the new binaries to the device with adb sync.
# (Optional): Run `acov --clean-device`. This will reset coverage for everything
# on the device.
# 4. Run tests.
# (Optional): Run `acov --flush`. This will dump coverage from all processes
# running on the device.
# 5. Run `acov`.
#
# acov will pull all coverage information from the device, push it to the right
# directories, run lcov, and display the coverage report (currently by opening
# it in your browser).
#
if [ "$CLANG_COVERAGE" == "true" ]; then
echo "CLANG_COVERAGE is set. Use development/scripts/acov-llvm.py instead."
exit 0
fi
ANDROID_OUT=${OUT_DIR:-out}
FLUSH_SLEEP=${FLUSH_SLEEP:-60}
function clearGcdaFiles() {
if [ -d "$ANDROID_OUT" ]; then
find $ANDROID_OUT -name '*.gcda' -delete
fi
}
function clearGcnoFiles() {
if [ -d "$ANDROID_OUT" ]; then
find $ANDROID_OUT -name '*.gcno' -delete
fi
}
if [ "$1" = "--clean" ]; then
echo "Clearing gcda and gcno files from the local build."
clearGcdaFiles
clearGcnoFiles
exit 0
fi
if [ "$1" = "--prep" ]; then
echo "Clearing gcda files from the local build."
clearGcdaFiles
exit 0
fi
adb root
if [ "$1" = "--clean-device" ]; then
echo "Resetting coverage on the device..."
adb shell kill -37 -1
echo "Waiting $FLUSH_SLEEP seconds for coverage to be written..."
sleep $FLUSH_SLEEP
adb shell rm -rf /data/misc/trace/*
exit 0
fi
if [ "$1" = "--flush" ]; then
shift
if [ -z $@ ]; then
echo "Flushing coverage for all processes on the device..."
adb shell kill -37 -1
else
echo "Flushing coverage for [$@] on the device..."
adb shell kill -37 $(adb shell pidof $@)
fi
echo "Waiting $FLUSH_SLEEP seconds for coverage to be written..."
sleep $FLUSH_SLEEP
exit 0
fi
which lcov >/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
echo 'lcov not found: running `sudo apt-get install lcov`'
sudo apt-get install lcov
fi
cd $ANDROID_BUILD_TOP
DIR=$(mktemp -d covreport-XXXXXX)
# Build a coverage report for each euid that has reported coverage.
COVERAGE_REPORTS=
for USER_ID in $(adb shell ls /data/misc/trace)
do
FILE=cov-$USER_ID.info
adb shell tar -czf - -C /data/misc/trace/$USER_ID/proc/self/cwd $ANDROID_OUT | tar zxvf -
lcov -c -d $ANDROID_OUT -o $DIR/$FILE --gcov-tool=llvm-gcov $@
COVERAGE_REPORTS="-a $DIR/$FILE $COVERAGE_REPORTS"
clearGcdaFiles
done
FILE=merged.info
lcov $COVERAGE_REPORTS -o $DIR/$FILE
echo "Generating coverage report at $DIR"
genhtml -q -o $DIR $DIR/$FILE
xdg-open $DIR/index.html >/dev/null
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