Ejemplo n.º 1
0
struct aarch64_debug_reg_state *
aarch64_get_debug_reg_state (pid_t pid)
{
  struct process_info *proc = find_process_pid (pid);

  return &proc->priv->arch_private->debug_reg_state;
}
Ejemplo n.º 2
0
static void
aarch64_linux_prepare_to_resume (struct lwp_info *lwp)
{
  struct thread_info *thread = get_lwp_thread (lwp);
  ptid_t ptid = ptid_of (thread);
  struct arch_lwp_info *info = lwp->arch_private;

  if (DR_HAS_CHANGED (info->dr_changed_bp)
      || DR_HAS_CHANGED (info->dr_changed_wp))
    {
      int tid = ptid_get_lwp (ptid);
      struct process_info *proc = find_process_pid (ptid_get_pid (ptid));
      struct aarch64_debug_reg_state *state
	= &proc->priv->arch_private->debug_reg_state;

      if (show_debug_regs)
	fprintf (stderr, "prepare_to_resume thread %ld\n", lwpid_of (thread));

      /* Watchpoints.  */
      if (DR_HAS_CHANGED (info->dr_changed_wp))
	{
	  aarch64_linux_set_debug_regs (state, tid, 1);
	  DR_CLEAR_CHANGED (info->dr_changed_wp);
	}

      /* Breakpoints.  */
      if (DR_HAS_CHANGED (info->dr_changed_bp))
	{
	  aarch64_linux_set_debug_regs (state, tid, 0);
	  DR_CLEAR_CHANGED (info->dr_changed_bp);
	}
    }
}
Ejemplo n.º 3
0
/* Kill all inferiors.  */
static int
win32_kill (int pid)
{
  struct process_info *process;

  if (current_process_handle == NULL)
    return -1;

  TerminateProcess (current_process_handle, 0);
  for (;;)
    {
      if (!child_continue (DBG_CONTINUE, -1))
	break;
      if (!WaitForDebugEvent (&current_event, INFINITE))
	break;
      if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
	break;
      else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT)
	{
	  struct target_waitstatus our_status = { 0 };
	  handle_output_debug_string (&our_status);
	}
    }

  win32_clear_inferiors ();

  process = find_process_pid (pid);
  remove_process (process);
  return 0;
}
Ejemplo n.º 4
0
/* Called when resuming a thread.
   If the debug regs have changed, update the thread's copies.  */
static void
arm_prepare_to_resume (struct lwp_info *lwp)
{
  struct thread_info *thread = get_lwp_thread (lwp);
  int pid = lwpid_of (thread);
  struct process_info *proc = find_process_pid (pid_of (thread));
  struct arch_process_info *proc_info = proc->priv->arch_private;
  struct arch_lwp_info *lwp_info = lwp->arch_private;
  int i;

  for (i = 0; i < arm_linux_get_hw_breakpoint_count (); i++)
    if (lwp_info->bpts_changed[i])
      {
	errno = 0;

	if (arm_hwbp_control_is_enabled (proc_info->bpts[i].control))
	  if (ptrace (PTRACE_SETHBPREGS, pid,
		      (PTRACE_TYPE_ARG3) ((i << 1) + 1),
		      &proc_info->bpts[i].address) < 0)
	    perror_with_name ("Unexpected error setting breakpoint address");

	if (arm_hwbp_control_is_initialized (proc_info->bpts[i].control))
	  if (ptrace (PTRACE_SETHBPREGS, pid,
		      (PTRACE_TYPE_ARG3) ((i << 1) + 2),
		      &proc_info->bpts[i].control) < 0)
	    perror_with_name ("Unexpected error setting breakpoint");

	lwp_info->bpts_changed[i] = 0;
      }

  for (i = 0; i < arm_linux_get_hw_watchpoint_count (); i++)
    if (lwp_info->wpts_changed[i])
      {
	errno = 0;

	if (arm_hwbp_control_is_enabled (proc_info->wpts[i].control))
	  if (ptrace (PTRACE_SETHBPREGS, pid,
		      (PTRACE_TYPE_ARG3) -((i << 1) + 1),
		      &proc_info->wpts[i].address) < 0)
	    perror_with_name ("Unexpected error setting watchpoint address");

	if (arm_hwbp_control_is_initialized (proc_info->wpts[i].control))
	  if (ptrace (PTRACE_SETHBPREGS, pid,
		      (PTRACE_TYPE_ARG3) -((i << 1) + 2),
		      &proc_info->wpts[i].control) < 0)
	    perror_with_name ("Unexpected error setting watchpoint");

	lwp_info->wpts_changed[i] = 0;
      }
}
Ejemplo n.º 5
0
static int
lynx_detach (int pid)
{
  ptid_t ptid = lynx_ptid_build (pid, 0);
  struct process_info *process;

  process = find_process_pid (pid);
  if (process == NULL)
    return -1;

  lynx_ptrace (PTRACE_DETACH, ptid, 0, 0, 0);
  the_target->mourn (process);
  return 0;
}
Ejemplo n.º 6
0
static int
lynx_kill (int pid)
{
  ptid_t ptid = lynx_ptid_build (pid, 0);
  struct target_waitstatus status;
  struct process_info *process;

  process = find_process_pid (pid);
  if (process == NULL)
    return -1;

  lynx_ptrace (PTRACE_KILL, ptid, 0, 0, 0);
  lynx_wait (ptid, &status, 0);
  the_target->mourn (process);
  return 0;
}
Ejemplo n.º 7
0
/* Detach from inferior PID.  */
static int
win32_detach (int pid)
{
  struct process_info *process;
  winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL;
  winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL;
#ifdef _WIN32_WCE
  HMODULE dll = GetModuleHandle (_T("COREDLL.DLL"));
#else
  HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL"));
#endif
  DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop);
  DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit);

  if (DebugSetProcessKillOnExit == NULL
      || DebugActiveProcessStop == NULL)
    return -1;

  {
    struct thread_resume resume;
    resume.thread = minus_one_ptid;
    resume.kind = resume_continue;
    resume.sig = 0;
    win32_resume (&resume, 1);
  }

  if (!DebugActiveProcessStop (current_process_id))
    return -1;

  DebugSetProcessKillOnExit (FALSE);
  process = find_process_pid (pid);
  remove_process (process);

  win32_clear_inferiors ();
  return 0;
}
Ejemplo n.º 8
0
static ptid_t
lynx_wait_1 (ptid_t ptid, struct target_waitstatus *status, int options)
{
  int pid;
  int ret;
  int wstat;
  ptid_t new_ptid;

  if (ptid_equal (ptid, minus_one_ptid))
    pid = lynx_ptid_get_pid (thread_to_gdb_id (current_thread));
  else
    pid = BUILDPID (lynx_ptid_get_pid (ptid), lynx_ptid_get_tid (ptid));

retry:

  ret = lynx_waitpid (pid, &wstat);
  new_ptid = lynx_ptid_build (ret, ((union wait *) &wstat)->w_tid);
  find_process_pid (ret)->priv->last_wait_event_ptid = new_ptid;

  /* If this is a new thread, then add it now.  The reason why we do
     this here instead of when handling new-thread events is because
     we need to add the thread associated to the "main" thread - even
     for non-threaded applications where the new-thread events are not
     generated.  */
  if (!find_thread_ptid (new_ptid))
    {
      lynx_debug ("New thread: (pid = %d, tid = %d)",
		  lynx_ptid_get_pid (new_ptid), lynx_ptid_get_tid (new_ptid));
      add_thread (new_ptid, NULL);
    }

  if (WIFSTOPPED (wstat))
    {
      status->kind = TARGET_WAITKIND_STOPPED;
      status->value.integer = gdb_signal_from_host (WSTOPSIG (wstat));
      lynx_debug ("process stopped with signal: %d",
                  status->value.integer);
    }
  else if (WIFEXITED (wstat))
    {
      status->kind = TARGET_WAITKIND_EXITED;
      status->value.integer = WEXITSTATUS (wstat);
      lynx_debug ("process exited with code: %d", status->value.integer);
    }
  else if (WIFSIGNALED (wstat))
    {
      status->kind = TARGET_WAITKIND_SIGNALLED;
      status->value.integer = gdb_signal_from_host (WTERMSIG (wstat));
      lynx_debug ("process terminated with code: %d",
                  status->value.integer);
    }
  else
    {
      /* Not sure what happened if we get here, or whether we can
	 in fact get here.  But if we do, handle the event the best
	 we can.  */
      status->kind = TARGET_WAITKIND_STOPPED;
      status->value.integer = gdb_signal_from_host (0);
      lynx_debug ("unknown event ????");
    }

  /* SIGTRAP events are generated for situations other than single-step/
     breakpoint events (Eg. new-thread events).  Handle those other types
     of events, and resume the execution if necessary.  */
  if (status->kind == TARGET_WAITKIND_STOPPED
      && status->value.integer == GDB_SIGNAL_TRAP)
    {
      const int realsig = lynx_ptrace (PTRACE_GETTRACESIG, new_ptid, 0, 0, 0);

      lynx_debug ("(realsig = %d)", realsig);
      switch (realsig)
	{
	  case SIGNEWTHREAD:
	    /* We just added the new thread above.  No need to do anything
	       further.  Just resume the execution again.  */
	    lynx_continue (new_ptid);
	    goto retry;

	  case SIGTHREADEXIT:
	    remove_thread (find_thread_ptid (new_ptid));
	    lynx_continue (new_ptid);
	    goto retry;
	}
    }

  return new_ptid;
}
Ejemplo n.º 9
0
struct process_info *
get_thread_process (struct thread_info *thread)
{
  int pid = ptid_get_pid (thread->entry.id);
  return find_process_pid (pid);
}
Ejemplo n.º 10
0
struct process_info *
get_thread_process (const struct thread_info *thread)
{
  return find_process_pid (thread->id.pid ());
}