Frameworks/base: New preload tool (554d7ee0) · Commits · e / os / android_frameworks_base

tools/preload2/Android.mk

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			LOCAL_PATH:= $(call my-dir)

			include $(CLEAR_VARS)

			LOCAL_SRC_FILES := $(call all-java-files-under,src)
			LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk

			# To connect to devices (and take hprof dumps).
			LOCAL_STATIC_JAVA_LIBRARIES := ddmlib-prebuilt

			# To process hprof dumps.
			LOCAL_STATIC_JAVA_LIBRARIES += perflib-prebuilt trove-prebuilt guavalib

			# For JDWP access we use the framework in the JDWP tests from Apache Harmony, for
			# convenience (and to not depend on internal JDK APIs).
			LOCAL_STATIC_JAVA_LIBRARIES += apache-harmony-jdwp-tests-host junit

			LOCAL_MODULE:= preload2

			include $(BUILD_HOST_JAVA_LIBRARY)

			# Copy the preload-tool shell script to the host's bin directory.
			include $(CLEAR_VARS)
			LOCAL_IS_HOST_MODULE := true
			LOCAL_MODULE_TAGS := optional
			LOCAL_MODULE_CLASS := EXECUTABLES
			LOCAL_MODULE := preload-tool
			include $(BUILD_SYSTEM)/base_rules.mk
			$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/preload-tool $(ACP)
			@echo "Copy: $(PRIVATE_MODULE) ($@)"
			$(copy-file-to-new-target)
			$(hide) chmod 755 $@

tools/preload2/preload-tool

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			# Copyright (C) 2015 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 is used on the host only. It uses a common subset
			# shell dialect that should work well. It is partially derived
			# from art/tools/art.

			function follow_links() {
			if [ z"$BASH_SOURCE" != z ]; then
			file="$BASH_SOURCE"
			else
			file="$0"
			fi
			while [ -h "$file" ]; do
			# On Mac OS, readlink -f doesn't work.
			file="$(readlink "$file")"
			done
			echo "$file"
			}


			PROG_NAME="$(follow_links)"
			PROG_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
			ANDROID_ROOT=$PROG_DIR/..

			java -cp $ANDROID_ROOT/framework/preload2.jar com.android.preload.Main

tools/preload2/src/com/android/preload/ClientUtils.java

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			/*
			* Copyright (C) 2015 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.
			*/

			package com.android.preload;

			import com.android.ddmlib.AndroidDebugBridge;
			import com.android.ddmlib.AndroidDebugBridge.IClientChangeListener;
			import com.android.ddmlib.Client;
			import com.android.ddmlib.IDevice;

			/**
			* Helper class for common communication with a Client (the ddms name for a running application).
			*
			* Instances take a default timeout parameter that's applied to all functions without explicit
			* timeout. Timeouts are in milliseconds.
			*/
			public class ClientUtils {

			private int defaultTimeout;

			public ClientUtils() {
			this(10000);
			}

			public ClientUtils(int defaultTimeout) {
			this.defaultTimeout = defaultTimeout;
			}

			/**
			* Shortcut for findClient with default timeout.
			*/
			public Client findClient(IDevice device, String processName, int processPid) {
			return findClient(device, processName, processPid, defaultTimeout);
			}

			/**
			* Find the client with the given process name or process id. The name takes precedence over
			* the process id (if valid). Stop looking after the given timeout.
			*
			* @param device The device to communicate with.
			* @param processName The name of the process. May be null.
			* @param processPid The pid of the process. Values less than or equal to zero are ignored.
			* @param timeout The amount of milliseconds to wait, at most.
			* @return The client, if found. Otherwise null.
			*/
			public Client findClient(IDevice device, String processName, int processPid, int timeout) {
			WaitForClient wfc = new WaitForClient(device, processName, processPid, timeout);
			return wfc.get();
			}

			/**
			* Shortcut for findAllClients with default timeout.
			*/
			public Client[] findAllClients(IDevice device) {
			return findAllClients(device, defaultTimeout);
			}

			/**
			* Retrieve all clients known to the given device. Wait at most the given timeout.
			*
			* @param device The device to investigate.
			* @param timeout The amount of milliseconds to wait, at most.
			* @return An array of clients running on the given device. May be null depending on the
			* device implementation.
			*/
			public Client[] findAllClients(IDevice device, int timeout) {
			if (device.hasClients()) {
			return device.getClients();
			}
			WaitForClients wfc = new WaitForClients(device, timeout);
			return wfc.get();
			}

			private static class WaitForClient implements IClientChangeListener {

			private IDevice device;
			private String processName;
			private int processPid;
			private long timeout;
			private Client result;

			public WaitForClient(IDevice device, String processName, int processPid, long timeout) {
			this.device = device;
			this.processName = processName;
			this.processPid = processPid;
			this.timeout = timeout;
			this.result = null;
			}

			public Client get() {
			synchronized (this) {
			AndroidDebugBridge.addClientChangeListener(this);

			// Maybe it's already there.
			if (result == null) {
			result = searchForClient(device);
			}

			if (result == null) {
			try {
			wait(timeout);
			} catch (InterruptedException e) {
			// Note: doesn't guard for spurious wakeup.
			}
			}
			}

			AndroidDebugBridge.removeClientChangeListener(this);
			return result;
			}

			private Client searchForClient(IDevice device) {
			if (processName != null) {
			Client tmp = device.getClient(processName);
			if (tmp != null) {
			return tmp;
			}
			}
			if (processPid > 0) {
			String name = device.getClientName(processPid);
			if (name != null && !name.isEmpty()) {
			Client tmp = device.getClient(name);
			if (tmp != null) {
			return tmp;
			}
			}
			}
			if (processPid > 0) {
			// Try manual search.
			for (Client cl : device.getClients()) {
			if (cl.getClientData().getPid() == processPid
			&& cl.getClientData().getClientDescription() != null) {
			return cl;
			}
			}
			}
			return null;
			}

			private boolean isTargetClient(Client c) {
			if (processPid > 0 && c.getClientData().getPid() == processPid) {
			return true;
			}
			if (processName != null
			&& processName.equals(c.getClientData().getClientDescription())) {
			return true;
			}
			return false;
			}

			@Override
			public void clientChanged(Client arg0, int arg1) {
			synchronized (this) {
			if ((arg1 & Client.CHANGE_INFO) != 0 && (arg0.getDevice() == device)) {
			if (isTargetClient(arg0)) {
			result = arg0;
			notifyAll();
			}
			}
			}
			}
			}

			private static class WaitForClients implements IClientChangeListener {

			private IDevice device;
			private long timeout;

			public WaitForClients(IDevice device, long timeout) {
			this.device = device;
			this.timeout = timeout;
			}

			public Client[] get() {
			synchronized (this) {
			AndroidDebugBridge.addClientChangeListener(this);

			if (device.hasClients()) {
			return device.getClients();
			}

			try {
			wait(timeout); // Note: doesn't guard for spurious wakeup.
			} catch (InterruptedException exc) {
			}

			// We will be woken up when the first client data arrives. Sleep a little longer
			// to give (hopefully all of) the rest of the clients a chance to become available.
			// Note: a loop with timeout is brittle as well and complicated, just accept this
			// for now.
			try {
			Thread.sleep(500);
			} catch (InterruptedException exc) {
			}
			}

			AndroidDebugBridge.removeClientChangeListener(this);

			return device.getClients();
			}

			@Override
			public void clientChanged(Client arg0, int arg1) {
			synchronized (this) {
			if ((arg1 & Client.CHANGE_INFO) != 0 && (arg0.getDevice() == device)) {
			notifyAll();
			}
			}
			}
			}
			}

tools/preload2/src/com/android/preload/DeviceUtils.java

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			/*
			* Copyright (C) 2015 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.
			*/

			package com.android.preload;

			import com.android.ddmlib.AndroidDebugBridge;
			import com.android.ddmlib.AndroidDebugBridge.IDeviceChangeListener;
			import com.android.preload.classdataretrieval.hprof.Hprof;
			import com.android.ddmlib.DdmPreferences;
			import com.android.ddmlib.IDevice;
			import com.android.ddmlib.IShellOutputReceiver;

			import java.util.Date;
			import java.util.concurrent.Future;
			import java.util.concurrent.TimeUnit;

			/**
			* Helper class for some device routines.
			*/
			public class DeviceUtils {

			public static void init(int debugPort) {
			DdmPreferences.setSelectedDebugPort(debugPort);

			Hprof.init();

			AndroidDebugBridge.init(true);

			AndroidDebugBridge.createBridge();
			}

			/**
			* Run a command in the shell on the device.
			*/
			public static void doShell(IDevice device, String cmdline, long timeout, TimeUnit unit) {
			doShell(device, cmdline, new NullShellOutputReceiver(), timeout, unit);
			}

			/**
			* Run a command in the shell on the device. Collects and returns the console output.
			*/
			public static String doShellReturnString(IDevice device, String cmdline, long timeout,
			TimeUnit unit) {
			CollectStringShellOutputReceiver rec = new CollectStringShellOutputReceiver();
			doShell(device, cmdline, rec, timeout, unit);
			return rec.toString();
			}

			/**
			* Run a command in the shell on the device, directing all output to the given receiver.
			*/
			public static void doShell(IDevice device, String cmdline, IShellOutputReceiver receiver,
			long timeout, TimeUnit unit) {
			try {
			device.executeShellCommand(cmdline, receiver, timeout, unit);
			} catch (Exception e) {
			e.printStackTrace();
			}
			}

			/**
			* Run am start on the device.
			*/
			public static void doAMStart(IDevice device, String name, String activity) {
			doShell(device, "am start -n " + name + " /." + activity, 30, TimeUnit.SECONDS);
			}

			/**
			* Find the device with the given serial. Give up after the given timeout (in milliseconds).
			*/
			public static IDevice findDevice(String serial, int timeout) {
			WaitForDevice wfd = new WaitForDevice(serial, timeout);
			return wfd.get();
			}

			/**
			* Get all devices ddms knows about. Wait at most for the given timeout.
			*/
			public static IDevice[] findDevices(int timeout) {
			WaitForDevice wfd = new WaitForDevice(null, timeout);
			wfd.get();
			return AndroidDebugBridge.getBridge().getDevices();
			}

			/**
			* Return the build type of the given device. This is the value of the "ro.build.type"
			* system property.
			*/
			public static String getBuildType(IDevice device) {
			try {
			Future<String> buildType = device.getSystemProperty("ro.build.type");
			return buildType.get(500, TimeUnit.MILLISECONDS);
			} catch (Exception e) {
			}
			return null;
			}

			/**
			* Check whether the given device has a pre-optimized boot image. More precisely, checks
			* whether /system/framework/ * /boot.art exists.
			*/
			public static boolean hasPrebuiltBootImage(IDevice device) {
			String ret =
			doShellReturnString(device, "ls /system/framework/*/boot.art", 500, TimeUnit.MILLISECONDS);

			return !ret.contains("No such file or directory");
			}

			/**
			* Remove files involved in a standard build that interfere with collecting data. This will
			* remove /etc/preloaded-classes, which determines which classes are allocated already in the
			* boot image. It also deletes any compiled boot image on the device. Then it restarts the
			* device.
			*
			* This is a potentially long-running operation, as the boot after the deletion may take a while.
			* The method will abort after the given timeout.
			*/
			public static boolean removePreloaded(IDevice device, long preloadedWaitTimeInSeconds) {
			String oldContent =
			DeviceUtils.doShellReturnString(device, "cat /etc/preloaded-classes", 1, TimeUnit.SECONDS);
			if (oldContent.trim().equals("")) {
			System.out.println("Preloaded-classes already empty.");
			return true;
			}

			// Stop the system server etc.
			doShell(device, "stop", 100, TimeUnit.MILLISECONDS);

			// Remount /system, delete /etc/preloaded-classes. It would be nice to use "adb remount,"
			// but AndroidDebugBridge doesn't expose it.
			doShell(device, "mount -o remount,rw /system", 500, TimeUnit.MILLISECONDS);
			doShell(device, "rm /etc/preloaded-classes", 100, TimeUnit.MILLISECONDS);
			// We do need an empty file.
			doShell(device, "touch /etc/preloaded-classes", 100, TimeUnit.MILLISECONDS);

			// Delete the files in the dalvik cache.
			doShell(device, "rm /data/dalvik-cache//boot.art", 500, TimeUnit.MILLISECONDS);

			// We'll try to use dev.bootcomplete to know when the system server is back up. But stop
			// doesn't reset it, so do it manually.
			doShell(device, "setprop dev.bootcomplete \"0\"", 500, TimeUnit.MILLISECONDS);

			// Start the system server.
			doShell(device, "start", 100, TimeUnit.MILLISECONDS);

			// Do a loop checking each second whether bootcomplete. Wait for at most the given
			// threshold.
			Date startDate = new Date();
			for (;;) {
			try {
			Thread.sleep(1000);
			} catch (InterruptedException e) {
			// Ignore spurious wakeup.
			}
			// Check whether bootcomplete.
			String ret =
			doShellReturnString(device, "getprop dev.bootcomplete", 500, TimeUnit.MILLISECONDS);
			if (ret.trim().equals("1")) {
			break;
			}
			System.out.println("Still not booted: " + ret);

			// Check whether we timed out. This is a simplistic check that doesn't take into account
			// things like switches in time.
			Date endDate = new Date();
			long seconds =
			TimeUnit.SECONDS.convert(endDate.getTime() - startDate.getTime(), TimeUnit.MILLISECONDS);
			if (seconds > preloadedWaitTimeInSeconds) {
			return false;
			}
			}

			return true;
			}

			/**
			* Enable method-tracing on device. The system should be restarted after this.
			*/
			public static void enableTracing(IDevice device) {
			// Disable selinux.
			doShell(device, "setenforce 0", 100, TimeUnit.MILLISECONDS);

			// Make the profile directory world-writable.
			doShell(device, "chmod 777 /data/dalvik-cache/profiles", 100, TimeUnit.MILLISECONDS);

			// Enable streaming method tracing with a small 1K buffer.
			doShell(device, "setprop dalvik.vm.method-trace true", 100, TimeUnit.MILLISECONDS);
			doShell(device, "setprop dalvik.vm.method-trace-file "
			+ "/data/dalvik-cache/profiles/zygote.trace.bin", 100, TimeUnit.MILLISECONDS);
			doShell(device, "setprop dalvik.vm.method-trace-file-siz 1024", 100, TimeUnit.MILLISECONDS);
			doShell(device, "setprop dalvik.vm.method-trace-stream true", 100, TimeUnit.MILLISECONDS);
			}

			private static class NullShellOutputReceiver implements IShellOutputReceiver {
			@Override
			public boolean isCancelled() {
			return false;
			}

			@Override
			public void flush() {}

			@Override
			public void addOutput(byte[] arg0, int arg1, int arg2) {}
			}

			private static class CollectStringShellOutputReceiver implements IShellOutputReceiver {

			private StringBuilder builder = new StringBuilder();

			@Override
			public String toString() {
			String ret = builder.toString();
			// Strip trailing newlines. They are especially ugly because adb uses DOS line endings.
			while (ret.endsWith("\r") \|\| ret.endsWith("\n")) {
			ret = ret.substring(0, ret.length() - 1);
			}
			return ret;
			}

			@Override
			public void addOutput(byte[] arg0, int arg1, int arg2) {
			builder.append(new String(arg0, arg1, arg2));
			}

			@Override
			public void flush() {}

			@Override
			public boolean isCancelled() {
			return false;
			}
			}

			private static class WaitForDevice {

			private String serial;
			private long timeout;
			private IDevice device;

			public WaitForDevice(String serial, long timeout) {
			this.serial = serial;
			this.timeout = timeout;
			device = null;
			}

			public IDevice get() {
			if (device == null) {
			WaitForDeviceListener wfdl = new WaitForDeviceListener(serial);
			synchronized (wfdl) {
			AndroidDebugBridge.addDeviceChangeListener(wfdl);

			// Check whether we already know about this device.
			IDevice[] devices = AndroidDebugBridge.getBridge().getDevices();
			if (serial != null) {
			for (IDevice d : devices) {
			if (serial.equals(d.getSerialNumber())) {
			// Only accept if there are clients already. Else wait for the callback informing
			// us that we now have clients.
			if (d.hasClients()) {
			device = d;
			}

			break;
			}
			}
			} else {
			if (devices.length > 0) {
			device = devices[0];
			}
			}

			if (device == null) {
			try {
			wait(timeout);
			} catch (InterruptedException e) {
			// Ignore spurious wakeups.
			}
			device = wfdl.getDevice();
			}

			AndroidDebugBridge.removeDeviceChangeListener(wfdl);
			}
			}

			if (device != null) {
			// Wait for clients.
			WaitForClientsListener wfcl = new WaitForClientsListener(device);
			synchronized (wfcl) {
			AndroidDebugBridge.addDeviceChangeListener(wfcl);

			if (!device.hasClients()) {
			try {
			wait(timeout);
			} catch (InterruptedException e) {
			// Ignore spurious wakeups.
			}
			}

			AndroidDebugBridge.removeDeviceChangeListener(wfcl);
			}
			}

			return device;
			}

			private static class WaitForDeviceListener implements IDeviceChangeListener {

			private String serial;
			private IDevice device;

			public WaitForDeviceListener(String serial) {
			this.serial = serial;
			}

			public IDevice getDevice() {
			return device;
			}

			@Override
			public void deviceChanged(IDevice arg0, int arg1) {
			// We may get a device changed instead of connected. Handle like a connection.
			deviceConnected(arg0);
			}

			@Override
			public void deviceConnected(IDevice arg0) {
			if (device != null) {
			// Ignore updates.
			return;
			}

			if (serial == null \|\| serial.equals(arg0.getSerialNumber())) {
			device = arg0;
			synchronized (this) {
			notifyAll();
			}
			}
			}

			@Override
			public void deviceDisconnected(IDevice arg0) {
			// Ignore disconnects.
			}

			}

			private static class WaitForClientsListener implements IDeviceChangeListener {

			private IDevice myDevice;

			public WaitForClientsListener(IDevice myDevice) {
			this.myDevice = myDevice;
			}

			@Override
			public void deviceChanged(IDevice arg0, int arg1) {
			if (arg0 == myDevice && (arg1 & IDevice.CHANGE_CLIENT_LIST) != 0) {
			// Got a client list, done here.
			synchronized (this) {
			notifyAll();
			}
			}
			}

			@Override
			public void deviceConnected(IDevice arg0) {
			}

			@Override
			public void deviceDisconnected(IDevice arg0) {
			}

			}
			}

			}

tools/preload2/src/com/android/preload/DumpData.java

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			/*
			* Copyright (C) 2015 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.
			*/

			package com.android.preload;

			import java.util.Date;
			import java.util.HashMap;
			import java.util.HashSet;
			import java.util.Map;
			import java.util.Set;

			/**
			* Holds the collected data for a process.
			*/
			public class DumpData {
			/**
			* Name of the package (=application).
			*/
			String packageName;

			/**
			* A map of class name to a string for the classloader. This may be a toString equivalent,
			* or just a unique ID.
			*/
			Map<String, String> dumpData;

			/**
			* The Date when this data was captured. Mostly for display purposes.
			*/
			Date date;

			/**
			* A cached value for the number of boot classpath classes (classloader value in dumpData is
			* null).
			*/
			int bcpClasses;

			public DumpData(String packageName, Map<String, String> dumpData, Date date) {
			this.packageName = packageName;
			this.dumpData = dumpData;
			this.date = date;

			countBootClassPath();
			}

			public String getPackageName() {
			return packageName;
			}

			public Date getDate() {
			return date;
			}

			public Map<String, String> getDumpData() {
			return dumpData;
			}

			public void countBootClassPath() {
			bcpClasses = 0;
			for (Map.Entry<String, String> e : dumpData.entrySet()) {
			if (e.getValue() == null) {
			bcpClasses++;
			}
			}
			}

			// Return an inverted mapping.
			public Map<String, Set<String>> invertData() {
			Map<String, Set<String>> ret = new HashMap<>();
			for (Map.Entry<String, String> e : dumpData.entrySet()) {
			if (!ret.containsKey(e.getValue())) {
			ret.put(e.getValue(), new HashSet<String>());
			}
			ret.get(e.getValue()).add(e.getKey());
			}
			return ret;
			}
			}
			No newline at end of file