Я пытаюсь выйти из сеанса отладки, и он запрашивает у пользователя ввод для проверки.Я попытался запустить этот фрагмент кода в моем коде
stdin.println("quit");
stdin.flush();
stdin.println("y"); // this does not work..
stdin.flush();
, но он не работает ..
Как я могу отправить вход в GDB с помощью этой внешней Java-программы ??
public class Debugger extends Thread{
public void run(){
Process p = null;
try {
p = Runtime.getRuntime().exec("gdb a.out --interpreter=console");
new Thread(new SyncPipe(p.getErrorStream(), System.err)).start();
new Thread(new SyncPipe(p.getInputStream(), System.out)).start();
PrintWriter stdin = new PrintWriter(p.getOutputStream());
stdin.flush();
stdin.println("break main");
stdin.flush();
stdin.println("run");
stdin.flush();
stdin.println("s");
stdin.flush();
stdin.println("quit");
stdin.flush();
stdin.println("y"); // this does not work..
stdin.flush();
// stdin.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
class SyncPipe implements Runnable
{
public SyncPipe(InputStream istrm, OutputStream ostrm) {
istrm_ = istrm;
ostrm_ = ostrm;
}
public void run() {
try
{
int length;
byte[] buffer = new byte[1024];
for ( length = 0; (length = istrm_.read(buffer)) != -1; ){
ostrm_.write(buffer, 0, length);
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
private final OutputStream ostrm_;
private final InputStream istrm_;
}
Вывод GDB:
GNU gdb (Ubuntu/Linaro 7.3-0ubuntu2) 7.3-2011.08
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /home/charmae/workspace/AVT/a.out...done.
(gdb) Breakpoint 1 at 0x804853d: file fileg.c, line 7.
(gdb) Starting program: /home/charmae/workspace/AVT/a.out
Breakpoint 1, main () at fileg.c:7
7 printf("input of x: ");
(gdb) 8 scanf("%d",&x);
(gdb) A debugging session is active.
Inferior 1 [process 6341] will be killed.
Quit anyway? (y or n) [answered Y; input not from terminal]