Esempio n. 1
0
int
agent_run_command (int pid, const char *cmd, int len)
{
  int fd;
  int tid = agent_get_helper_thread_id ();
  ptid_t ptid = ptid_build (pid, tid, 0);

  int ret = target_write_memory (ipa_sym_addrs.addr_cmd_buf,
				 (gdb_byte *) cmd, len);

  if (ret != 0)
    {
      warning (_("unable to write"));
      return -1;
    }

  DEBUG_AGENT ("agent: resumed helper thread\n");

  /* Resume helper thread.  */
  target_continue_no_signal (ptid);

  fd = gdb_connect_sync_socket (pid);
  if (fd >= 0)
    {
      char buf[1] = "";
      int ret;

      DEBUG_AGENT ("agent: signalling helper thread\n");

      do
	{
	  ret = write (fd, buf, 1);
	} while (ret == -1 && errno == EINTR);

	DEBUG_AGENT ("agent: waiting for helper thread's response\n");

      do
	{
	  ret = read (fd, buf, 1);
	} while (ret == -1 && errno == EINTR);

      close (fd);

      DEBUG_AGENT ("agent: helper thread's response received\n");
    }
  else
    return -1;

  /* Need to read response with the inferior stopped.  */
  if (!ptid_equal (ptid, null_ptid))
    {
      /* Stop thread PTID.  */
      DEBUG_AGENT ("agent: stop helper thread\n");
      target_stop_and_wait (ptid);
    }

  if (fd >= 0)
    {
      if (target_read_memory (ipa_sym_addrs.addr_cmd_buf, (gdb_byte *) cmd,
			      IPA_CMD_BUF_SIZE))
	{
	  warning (_("Error reading command response"));
	  return -1;
	}
    }

  return 0;
}
Esempio n. 2
0
int
agent_run_command (int pid, const char *cmd, int len)
{
  int fd;
  int tid = agent_get_helper_thread_id ();
  ptid_t ptid = ptid_build (pid, tid, 0);

#ifdef GDBSERVER
  int ret = write_inferior_memory (ipa_sym_addrs.addr_cmd_buf,
				   (const unsigned char *) cmd, len);
#else
  int ret = target_write_memory (ipa_sym_addrs.addr_cmd_buf, cmd, len);
#endif

  if (ret != 0)
    {
      warning (_("unable to write"));
      return -1;
    }

  DEBUG_AGENT ("agent: resumed helper thread\n");

  /* Resume helper thread.  */
#ifdef GDBSERVER
{
  struct thread_resume resume_info;

  resume_info.thread = ptid;
  resume_info.kind = resume_continue;
  resume_info.sig = GDB_SIGNAL_0;
  (*the_target->resume) (&resume_info, 1);
}
#else
 target_resume (ptid, 0, GDB_SIGNAL_0);
#endif

  fd = gdb_connect_sync_socket (pid);
  if (fd >= 0)
    {
      char buf[1] = "";
      int ret;

      DEBUG_AGENT ("agent: signalling helper thread\n");

      do
	{
	  ret = write (fd, buf, 1);
	} while (ret == -1 && errno == EINTR);

	DEBUG_AGENT ("agent: waiting for helper thread's response\n");

      do
	{
	  ret = read (fd, buf, 1);
	} while (ret == -1 && errno == EINTR);

      close (fd);

      DEBUG_AGENT ("agent: helper thread's response received\n");
    }
  else
    return -1;

  /* Need to read response with the inferior stopped.  */
  if (!ptid_equal (ptid, null_ptid))
    {
      struct target_waitstatus status;
      int was_non_stop = non_stop;
      /* Stop thread PTID.  */
      DEBUG_AGENT ("agent: stop helper thread\n");
#ifdef GDBSERVER
      {
	struct thread_resume resume_info;

	resume_info.thread = ptid;
	resume_info.kind = resume_stop;
	resume_info.sig = GDB_SIGNAL_0;
	(*the_target->resume) (&resume_info, 1);
      }

      non_stop = 1;
      mywait (ptid, &status, 0, 0);
#else
      non_stop = 1;
      target_stop (ptid);

      memset (&status, 0, sizeof (status));
      target_wait (ptid, &status, 0);
#endif
      non_stop = was_non_stop;
    }

  if (fd >= 0)
    {
#ifdef GDBSERVER
      if (read_inferior_memory (ipa_sym_addrs.addr_cmd_buf,
				(unsigned char *) cmd, IPA_CMD_BUF_SIZE))
#else
      if (target_read_memory (ipa_sym_addrs.addr_cmd_buf, (gdb_byte *) cmd,
			      IPA_CMD_BUF_SIZE))
#endif
	{
	  warning (_("Error reading command response"));
	  return -1;
	}
    }

  return 0;
}