* dcrt0.cc (do_exit): Rely on sigproc_terminate to set exit_state

appropriately.
* pinfo.cc (pinfo::exit): Always call sigproc_terminate here.  Rely on
sigproc_terminate to signal signal thread to handle eventual process exit.
* sigproc.cc (no_signals_available): Change criteria for determining if this
process can handle signals to itself.
(my_sendsig): New variable.  Copy of my sendsig handle.
(proc_can_be_signalled): Don't send signals if exit code is set.
(sigproc_terminate): Use and set exit_state appropriately to determine when to
do anything.  Send __SIGEXIT to self to control process exit.
(sig_send): Use my_sendsig for sending signals.  Don't call
proc_can_be_signalled for myself since the criteria is now different for
sending signals to myself.
(wait_sig): Copy myself->sendsig to my_sendsig for future use.  Exit signal
loop when __SIGEXIT is received.  Wait for main thread to exit and use its exit
status to actually exit process.
* sigproc.h (__SIGEXIT): New enum.
* dcrt0.cc (alloc_stack): Eliminate superfluous "return;".
* debug.cc (add_handle): Ditto.
* devices.in (device::parse): Ditto.
* dtable.cc (dtable::vfork_parent_restore): Ditto.
(dtable::vfork_child_fixup): Ditto.
* environ.cc (parse_options): Ditto.
* errno.cc (seterrno_from_win_error): Ditto.
* exceptions.cc (sig_handle_tty_stop): Ditto.
(set_signal_mask): Ditto.
* fhandler.cc (fhandler_base::read): Ditto.
(fhandler_base::operator delete): Ditto.
(fhandler_base::seekdir): Ditto.
(fhandler_base::rewinddir): Ditto.
* fhandler_console.cc (fhandler_console::read): Ditto.
(fhandler_console::fixup_after_exec): Ditto.
* sigproc.cc (sigproc_init): Ditto.
(sigproc_terminate): Ditto.

* devices.cc: Regenerate.

1 files changed, 1 insertions, 6 deletions

diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc
index 1783d5564..b7207667f 100644
--- a/winsup/cygwin/dcrt0.cc
+++ b/winsup/cygwin/dcrt0.cc
@@ -518,8 +518,6 @@ alloc_stack (child_info_fork *ci)
     ci->stacksize = 0;
   else
     alloc_stack_hard_way (ci, b + sizeof (b) - 1);
-
-  return;
 }
 
 #ifdef DEBUGGING
@@ -1059,10 +1057,7 @@ do_exit (int status)
     }
 
   if (exit_state < ES_SIGPROCTERMINATE)
-    {
-      exit_state = ES_SIGPROCTERMINATE;
-      sigproc_terminate ();
-    }
+    sigproc_terminate ();	// sets exit_state directly
 
   myself->stopsig = 0;
   if (exit_state < ES_TITLE)