我用Qt开发了一款Android应用程序已有好几个月了。我曾经能够在Qt Creator中调试没有问题，但现在调试器无法启动。部署过程有效 - 可以从设备GUI启动应用程序。
示例项目构建并可以正常调试。
我正在使用NDK 10e，因为后来有任何东西混淆了Creator，它告诉我Qt人没有使用最近的版本。
我有最新版本的SDK，在OS X上开发。
调试器日志窗口以此结束：
~"Loaded symbols for /Users/tjdaniel/projects/qt/5.6.0/plugins/sensors/libqtsensors_android.so\n"
~"Reading symbols from /Users/tjdaniel/projects/build/localization/android/Debug/liblocalization.so..."
sReading /Users/tjdaniel/projects/build/localization/android/Debug/liblocalization.so......
dHANDLE GDB ERROR: The gdb process was ended forcefully
dGDB PROCESS FINISHED, status 1, exit code 11
dNOTE: ENGINE ILL ******
以下是adb logcat的输出：
W/linker (12790): libqtforandroid.so: unused DT entry: type 0x1d arg 0x8d9a
W/linker (12790): Unsupported flags DT_FLAGS_1=0x81
I/Qt (12790): qt start
W/linker (12790): libqandroidbearer.so: unused DT entry: type 0x1d arg 0x174f
W/linker (12790): Unsupported flags DT_FLAGS_1=0x81
W/linker (12790): libqtmedia_android.so: unused DT entry: type 0x1d arg 0x51da
W/linker (12790): Unsupported flags DT_FLAGS_1=0x81
W/linker (12790): libqtsensors_android.so: unused DT entry: type 0x1d arg 0x1076
W/linker (12790): Unsupported flags DT_FLAGS_1=0x81
I/Qt (12790): Sensors start
W/linker (12790): liblocalization.so: unused DT entry: type 0x1d arg 0x29f5f4
D/ (12790): (null):0 ((null)): QML debugging is enabled. Only use this in a safe environment.
I/Qt JAVA (12790): DEBUGGER: extra parameters: Bundle[{debug_ping=true, gdbserver_socket=/data/data/org.qtproject.example.localization/debug-socket, qml_debug=true, gdbserver_command=/data/data/org.qtproject.example.localization/lib/libgdbserver.so --multi +/data/data/org.qtproject.example.localization/debug-socket, qmljsdebugger=port:56956,block,services:DebugMessages,QmlDebugger,V8Debugger,QmlInspector, ping_socket=org.qtproject.example.localization.ping_pong_socket}]
I/Qt JAVA (12790): DEBUGGER: removing gdb socket /data/data/org.qtproject.example.localization/debug-socket
I/Qt JAVA (12790): DEBUGGER: starting /data/data/org.qtproject.example.localization/lib/libgdbserver.so --multi +/data/data/org.qtproject.example.localization/debug-socket
I/Qt JAVA (12790): DEBUGGER: gdbserver started
I/Qt JAVA (12790): DEBUGGER: waiting for socket at /data/data/org.qtproject.example.localization/debug-socket, attempt 0
I/Qt JAVA (12790): DEBUGGER: waiting for socket at /data/data/org.qtproject.example.localization/debug-socket, attempt 1
I/Qt JAVA (12790): DEBUGGER: socket ok
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Debug socket accepted
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/Qt JAVA (12790): DEBUGGER: Waiting for debug socket connect
I/Qt JAVA (12790): DEBUGGER: go to sleep
I/ConfigService( 1968): onDestroy
W/ActivityManager( 845): Launch timeout has expired, giving up wake lock!
关于如何调试这个的任何建议？无法使用调试器正在扼杀我。我已经擦除并重新安装了与Qt相关的一切......没有运气。
答案 0 :(得分：0)
我遇到了同样的问题，而且使用的SDK工具并不是QT的良好支持。安装25.2.5工具后，就像说here一样。
答案 1 :(得分：0)
我遇到了同样的问题，截至今天，我发现的唯一方法是在AndroidManifest.xml中将Target android SDK设置为API 23（Android 6）或更低版本
答案 2 :(得分：0)
我有同样的问题XD：
App和IDE）不会被任何一方阻止
防火墙。以下是Qt调试服务器源（xd/DebugServer.java）的独立版本：
package xd;
//beaware: before call to "xd.DebugServer.start();" Gdb Server:
// Ensure all native libraries you want debug break in are loaded
// just add to class that calls "start" static initalizer sample:
// static { System.loadLibrary("tun2http"); } //this may load "libs/armeabi-v7a/libtun2http.so"
// Ensure both sides (this App and IDE) are NOT blocked by any firewall
//
//you can ignore signals using below (but may need to change SIG33):
//handle SIG33 nostop noprint noignore pass
import android.util.Log;
import android.content.pm.PackageManager;
import android.content.pm.ApplicationInfo;
import android.net.LocalServerSocket;
import java.io.File;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.DataOutputStream;
public class DebugServer {
public static final String TAG = "XD_GDB"; // string used for Log.x (the colon helps cut out false positives)
private static Process m_debuggerProcess = null; // debugger process
private static void debugLog(String msg) {
Log.i(TAG, msg);
}
//do not use this or IDE will fail to connect to debug server
public static String flushLog() {
try {
String command = "logcat -d";
Process process = Runtime.getRuntime().exec(command);
BufferedReader bufferedReader = new BufferedReader(
new InputStreamReader(process.getInputStream()));
StringBuilder log=new StringBuilder();
String line = "";
while ((line = bufferedReader.readLine()) != null) {
log.append(line + System.lineSeparator());
}
//process.waitFor();
bufferedReader.close();
return log.toString();
} catch (IOException e) {
// Handle Exception
}
return "";
}
private static class DebugWaitRunnable implements Runnable {
public DebugWaitRunnable(String pingPongSocket) throws IOException {
socket = new LocalServerSocket(pingPongSocket);
}
public boolean wasFailure;
private LocalServerSocket socket;
public void run() {
final int napTime = 200; // milliseconds between file accesses
final int timeOut = 5000; // ms until we give up on ping and pong
final int maxAttempts = timeOut / napTime;
try {
android.net.LocalSocket connectionFromClient = socket.accept();
debugLog("Debug socket accepted");
BufferedReader inFromClient =
new BufferedReader(new InputStreamReader(connectionFromClient.getInputStream()));
DataOutputStream outToClient = new DataOutputStream(connectionFromClient.getOutputStream());
outToClient.writeBytes("" + android.os.Process.myPid());
for (int i = 0; i < maxAttempts; i++) {
String clientData = inFromClient.readLine();
debugLog("Incoming socket " + clientData);
if (!clientData.isEmpty())
break;
if (connectionFromClient.isClosed()) {
wasFailure = true;
break;
}
Thread.sleep(napTime);
}
} catch (IOException ioEx) {
ioEx.printStackTrace();
wasFailure = true;
Log.e(TAG,"Can't start debugger" + ioEx.getMessage());
} catch (InterruptedException interruptEx) {
wasFailure = true;
Log.e(TAG,"Can't start debugger" + interruptEx.getMessage());
}
}
public void shutdown() throws IOException
{
wasFailure = true;
try {
socket.close();
} catch (IOException ignored) { }
}
};
//beaware: before call to "start" Gdb Server:
// Ensure all native libraries you want debug break in are loaded
// just add to class that calls "xd.DebugServer.start();" static initalizer sample:
// static { System.loadLibrary("tun2http"); } //this may load "libs/armeabi-v7a/libtun2http.so"
// Ensure both sides (this App and IDE) are NOT blocked by any firewall
public static boolean start(android.app.Activity activity) {
try {
//System.loadLibrary("gnustl_shared");
final int napTime = 200; // milliseconds between file accesses
final int timeOut = 30000; // ms until we give up on ping and pong
final int maxAttempts = timeOut / napTime;
PackageManager pm = activity.getPackageManager();
ApplicationInfo appInfo = pm.getApplicationInfo(
activity.getPackageName(), android.content.pm.PackageManager.GET_CONFIGURATIONS
);
final String packagePath = appInfo.dataDir + "/";
//using constant '"/data/data/"' instate of 'appInfo.dataDir+"/"' since that does not work old code was "extras.getString("gdbserver_socket");"
final String gdbserverSocket = "/data/data/" + appInfo.packageName + "/debug-socket";
final String gdbserverCommand = packagePath + "lib/libgdbserver.so --multi +" + gdbserverSocket;
debugLog("removing gdb socket " + gdbserverSocket);
new File(gdbserverSocket).delete();
debugLog("starting " + gdbserverCommand);
m_debuggerProcess = Runtime.getRuntime().exec(gdbserverCommand);
debugLog("gdbserver started");
int i;
for (i = 0; i < maxAttempts; ++i) {
debugLog("waiting for socket at " + gdbserverSocket + ", attempt " + i);
File file = new File(gdbserverSocket);
if (file.exists()) {
file.setReadable(true, false);
file.setWritable(true, false);
file.setExecutable(true, false);
break;
}
Thread.sleep(napTime);
}
if (i == maxAttempts) {
debugLog("time out when waiting for debug socket");
return false;
}
debugLog("socket ok");
final String pingSocket = appInfo.packageName + ".ping_pong_socket";
debugLog("pingSocket: " + pingSocket);
DebugWaitRunnable runnable = new DebugWaitRunnable(pingSocket);
Thread waitThread = new Thread(runnable);
waitThread.start();
debugLog("Waiting for debug socket connect");
for (i = 0; i < maxAttempts && waitThread.isAlive(); ++i) {
if(i % 10 == 0)
debugLog("Waiting attempt: " + i);
Thread.sleep(napTime);
}
if (i == maxAttempts) {
debugLog("time out when waiting for ping socket");
runnable.shutdown();
return false;
}
if (runnable.wasFailure) {
debugLog("Could not connect to debug client");
return false;
} else {
debugLog("Got pid acknowledgment");
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
public static void stop(android.app.Activity activity) {
if (m_debuggerProcess != null)
m_debuggerProcess.destroy();
System.exit(0);// FIXME remove it or find a better way
}
} //class GdbServer