[RFA] Checkpoint: wait the defunct process when delete it

[Michael Snyder]

Pedro Alves wrote:
> On Tuesday 11 May 2010 23:43:04, Michael Snyder wrote:
> 
> 
>>       old_cleanup = save_inferior_ptid ();
>>       inferior_ptid = fd->parent_ptid;
>>
>> Something like this?  Then the original inferior_ptid will be
>> restored when you do
>>
>>> +  if (call_function_by_hand (waitpid_fn, 3, argv) == 0)
>>> +    return -1;
>>       do_cleanups();
>>
>>> +  return 0;
>>> +}
> 
> That won't work.  You will hit an assertion somewhere: either because
> inferior_ptid is not found in the linux-nat.c lwp list, or because
> inferior_ptid is not found in gdb's thread list.  I believe you'll
> need to do a full linux_nat_switch_fork and back.
> 

There you go.   ;-)