#!/bin/bash
#
# Copyright (C) 2018 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.
# This script undoes (most of) the work done by tools/buildbot-setup-device.sh.
# Make sure to keep these files in sync.
.
"$(dirname $0)/buildbot-utils.sh"
[[ -n
"$ART_TEST_ON_VM" ]] && exit
0
[[ -n
"$ART_TEST_ON_SBC" ]] && exit
0
# Setup as root, as some actions performed here require it.
adb root
adb wait-
for-device
if [[ -n
"$ART_TEST_CHROOT" ]];
then
# Check that ART_TEST_CHROOT is correctly defined.
[[
"x$ART_TEST_CHROOT" = x/* ]] || {
echo "$ART_TEST_CHROOT is not an absolute path"; exit
1; }
if adb shell test -d
"$ART_TEST_CHROOT";
then
# Display users of the chroot dir.
msginfo
"List open files under chroot dir $ART_TEST_CHROOT"
adb shell lsof | grep
"$ART_TEST_CHROOT"
# for_all_chroot_process ACTION
# -----------------------------
# Execute ACTION on all processes running from binaries located
# under the chroot directory. ACTION is passed two arguments: the
# PID of the process, and a string containing the command line
# that started this process.
for_all_chroot_process() {
local action=$
1
adb shell ls -ld
"/proc/*/root" \
| sed -n -e
"s,^.* \\(/proc/.*/root\\) -> $ART_TEST_CHROOT\$,\\1,p" \
|
while read link;
do
local dir=$(dirname
"$link")
local pid=$(basename
"$dir")
local cmdline=$(adb shell
cat "$dir"/cmdline | tr
'\000' ' ')
$action
"$pid" "$cmdline"
done
}
# display_process PID CMDLINE
# ---------------------------
# Display information about process with given PID, that was started with CMDLINE.
display_process() {
local pid=$
1
local cmdline=$
2
echo "$cmdline (PID: $pid)"
}
msginfo
"List processes running from binaries under chroot dir $ART_TEST_CHROOT"
for_all_chroot_process display_process
# Tear down the chroot dir.
msginfo
"Tear down the chroot set up in $ART_TEST_CHROOT"
# remove_filesystem_from_chroot DIR-IN-CHROOT FSTYPE REMOVE-DIR-IN-CHROOT
# -----------------------------------------------------------------------
# Unmount filesystem with type FSTYPE mounted in directory DIR-IN-CHROOT
# under the chroot directory.
# Remove DIR-IN-CHROOT under the chroot if REMOVE-DIR-IN-CHROOT is
# true.
remove_filesystem_from_chroot() {
local dir_in_chroot=$
1
local fstype=$
2
local remove_dir=$
3
local dir=
"$ART_TEST_CHROOT/$dir_in_chroot"
adb shell test -d
"$dir" \
&& adb shell mount | grep -q
" on $dir type $fstype " \
&&
if adb shell umount
"$dir";
then
$remove_dir && adb shell rmdir
"$dir"
else
echo "Files still open in $dir:"
adb shell lsof | grep
"$dir"
fi
}
# Remove /bin symlink from chroot.
adb shell
rm -f
"$ART_TEST_CHROOT/bin"
# Remove /apex from chroot.
adb shell
rm -rf
"$ART_TEST_CHROOT/apex"
# Remove /dev from chroot.
remove_filesystem_from_chroot dev/cpuset cgroup false
remove_filesystem_from_chroot dev/pts devpts false
remove_filesystem_from_chroot dev tmpfs true
# Remove /sys/kernel/{debug,tracing} from chroot.
# The /sys/kernel/{debug,tracing} directories under the chroot dir cannot be
# deleted, as they are part of the host device's /sys filesystem.
remove_filesystem_from_chroot sys/kernel/debug debugfs false
remove_filesystem_from_chroot sys/kernel/tracing tracefs false
# Remove /sys from chroot.
remove_filesystem_from_chroot sys sysfs true
# Remove /proc from chroot.
remove_filesystem_from_chroot proc proc true
# Remove /etc from chroot.
adb shell
rm -f
"$ART_TEST_CHROOT/etc"
adb shell
rm -rf
"$ART_TEST_CHROOT/system/etc"
# Remove directories used for ART testing in chroot.
adb shell
rm -rf
"$ART_TEST_CHROOT/data/local/tmp"
adb shell
rm -rf
"$ART_TEST_CHROOT/data/dalvik-cache"
adb shell
rm -rf
"$ART_TEST_CHROOT/tmp"
# Remove property_contexts file(s) from chroot.
property_context_files=
"/property_contexts \
/system/etc/selinux/plat_property_contexts \
/vendor/etc/selinux/nonplat_property_context \
/plat_property_contexts \
/nonplat_property_contexts
"
for f in $property_context_files;
do
adb shell
rm -f
"$ART_TEST_CHROOT$f"
done
# Kill processes still running in the chroot.
# kill_process PID CMDLINE
# ------------------------
# Kill process with given PID, that was started with CMDLINE.
kill_process() {
local pid=$
1
local cmdline=$
2
echo "Killing $cmdline (PID: $pid)"
adb shell kill -
9 "$pid"
}
msginfo
"Kill processes" \
"still running from binaries under chroot dir $ART_TEST_CHROOT (if any)"
for_all_chroot_process kill_process
fi
fi