You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
121 lines
3.6 KiB
121 lines
3.6 KiB
/*
|
|
* Copyright (C) 2011 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.
|
|
*/
|
|
|
|
import dalvik.system.PathClassLoader;
|
|
import dalvik.system.VMDebug;
|
|
import java.io.BufferedInputStream;
|
|
import java.io.BufferedOutputStream;
|
|
import java.io.FileInputStream;
|
|
import java.io.FileOutputStream;
|
|
import java.io.File;
|
|
import java.io.IOException;
|
|
|
|
public class Main {
|
|
public static void main(String[] args) throws Exception {
|
|
System.loadLibrary(args[0]);
|
|
System.out.println("Hello, world!");
|
|
String agent = null;
|
|
// By default allow debugging
|
|
boolean debugging_allowed = true;
|
|
for(String a : args) {
|
|
if(a.startsWith("agent:")) {
|
|
agent = a.substring(6);
|
|
} else if (a.equals("disallow-debugging")) {
|
|
debugging_allowed = false;
|
|
}
|
|
}
|
|
if (agent == null) {
|
|
throw new Error("Could not find agent: argument!");
|
|
}
|
|
setDebuggingAllowed(debugging_allowed);
|
|
// Setup is finished. Try to attach agent in 2 ways.
|
|
try {
|
|
VMDebug.attachAgent(agent);
|
|
} catch(SecurityException e) {
|
|
System.out.println(e.getMessage());
|
|
}
|
|
attachWithClassLoader(args);
|
|
System.out.println("Goodbye!");
|
|
}
|
|
|
|
private static native void setDebuggingAllowed(boolean val);
|
|
|
|
private static void attachWithClassLoader(String[] args) throws Exception {
|
|
for(String a : args) {
|
|
if(a.startsWith("agent:")) {
|
|
String agentName = a.substring(6, a.indexOf('='));
|
|
File tmp = null;
|
|
try {
|
|
tmp = File.createTempFile("lib", ".so");
|
|
prepare(agentName, tmp);
|
|
|
|
String newAgentName = tmp.getName();
|
|
String agent = a.substring(6).replace(agentName, newAgentName);
|
|
|
|
ClassLoader cl = new PathClassLoader("", tmp.getParentFile().getAbsolutePath(),
|
|
Main.class.getClassLoader());
|
|
try {
|
|
VMDebug.attachAgent(agent, cl);
|
|
} catch(SecurityException e) {
|
|
System.out.println(e.getMessage());
|
|
}
|
|
} catch (Exception e) {
|
|
e.printStackTrace(System.out);
|
|
} finally {
|
|
if (tmp != null) {
|
|
tmp.delete();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void prepare(String in, File tmp) throws Exception {
|
|
// Find the original.
|
|
File orig = find(in);
|
|
if (orig == null) {
|
|
throw new RuntimeException("Could not find " + in);
|
|
}
|
|
// Copy the original.
|
|
{
|
|
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(orig));
|
|
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(tmp));
|
|
byte[] buf = new byte[16 * 1024];
|
|
for (;;) {
|
|
int r = bis.read(buf, 0, buf.length);
|
|
if (r < 0) {
|
|
break;
|
|
} else if (r > 0) {
|
|
bos.write(buf, 0, r);
|
|
}
|
|
}
|
|
bos.close();
|
|
bis.close();
|
|
}
|
|
}
|
|
|
|
private static File find(String in) {
|
|
String libraryPath = System.getProperty("java.library.path");
|
|
for (String path : libraryPath.split(":")) {
|
|
File f = new File(path + "/" + in);
|
|
if (f.exists()) {
|
|
return f;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
}
|