java gdb runtime

Question

如何在java中使用过程对象执行gdb命令？

charmae@charmae-pc:~/Desktop$ gcc -g file.c 
charmae@charmae-pc:~/Desktop$ gdb ./a.out 
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/Desktop/a.out...done. 
(gdb) run 
Starting program: /home/charmae/Desktop/a.out 
address of x = 0xbffff2f8 
address of y= 0xbffff2fc 
address of x = 0xbffff2f8 
value of x = 1 
[Inferior 1 (process 4268) exited with code 017] 
(gdb) 

在我的Java代码：

Runtime rt = Runtime.getRuntime(); 
Process proc = rt.exec("gdb ./a.out"); 
       rt.exec("run"); 
BufferedReader std = new BufferedReader(new 
        InputStreamReader(proc.getErrorStream())); 
while ((s = std.readLine()) != null) { 
       System.out.println(s); 
       } 

Answer 1

Yey！回答我自己的问题..我用管道处理。

public class GDBpipeWriter 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 4"); 
     stdin.flush(); 
     stdin.println("break 10"); 
     stdin.flush(); 
     stdin.println("run"); 
     stdin.flush(); 

     /// write any other commands you want here 
     // 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 
     { 
      final byte[] buffer = new byte[1024]; 
      for (int 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_; 
}