[unreal_origin]

What I am trying to do is fork a process that runs gdb in the background on some program, I start gdb with the execvp call, here is what I have this far:

char *args[] = {"gdb","test/a.out",(char *) 0 };

if (execvp("gdb",args)==-1)
   {
      printf("execv failed\n");
      return -1;
   }
   //return 0; //this was added as a test
   //printf("TEST!!!!!!!!!!!!!!!!!!!!!\n\n\n\n\n\n\n\n\n\n"); /*When this line is uncommented I do not see this show up in the terminal*/
   fprintf(stdin,"%s","run");

There has to be some way that run additional commands to gdb. Any suggestions?

This post has been edited by unreal_origin: 26 March 2011 - 02:50 PM

[JackOfAllTrades]

You need to use popen() to return a FILE * you can write to. However, it's a one-way pipe; you can't also read from it, so I'm not sure if that's going to suit your needs.