* sigproc.cc (sigproc_terminate): Don't close sendsig handle when execing since

we're not closing what we think we're closing.
(sig_send): Improve debugging when exiting due to no_signals_available.
* wincap.h (wincaps::cant_debug_dll_entry): New element.
* wincap.cc: Implement above element throughout.
* dcrt0.cc (initial_env): Accommodate changes necessary to allow initial
debugging for systems which do not allow debugging in dll_entry.
(dll_crt0_0): Add initial_env call back here.
* Makefile.in (install-man): Use mandir as target for installation.
* include/cygwin/version.h: Bump DLL minor number to 7 (should have been done
earlier).

1 files changed, 16 insertions, 6 deletions

diff --git a/winsup/cygwin/sigproc.cc b/winsup/cygwin/sigproc.cc
index a1c2d305d..56aa2805b 100644
--- a/winsup/cygwin/sigproc.cc
+++ b/winsup/cygwin/sigproc.cc
@@ -633,6 +633,7 @@ sigproc_init ()
 void __stdcall
 sigproc_terminate (void)
 {
+  extern HANDLE hExeced;
   hwait_sig = NULL;
 
   if (myself->sendsig == INVALID_HANDLE_VALUE)
@@ -642,9 +643,12 @@ sigproc_terminate (void)
       sigproc_printf ("entering");
 				//  finished with anything it is doing
       ForceCloseHandle (sigcomplete_main);
-      HANDLE sendsig = myself->sendsig;
-      myself->sendsig = INVALID_HANDLE_VALUE;
-      CloseHandle (sendsig);
+      if (!hExeced)
+	{
+	  HANDLE sendsig = myself->sendsig;
+	  myself->sendsig = INVALID_HANDLE_VALUE;
+	  CloseHandle (sendsig);
+	}
     }
   proc_terminate ();		// Terminate process handling thread
 
@@ -680,7 +684,11 @@ sig_send (_pinfo *p, siginfo_t& si, _threadinfo *tls)
   else
     {
       if (no_signals_available ())
-	goto out;		// Either exiting or not yet initializing
+	{
+	  sigproc_printf ("hwait_sig %p, myself->sendsig %p, exit_state %d",
+			  hwait_sig, myself->sendsig, exit_state);
+	  goto out;		// Either exiting or not yet initializing
+	}
       if (wait_sig_inited)
 	wait_for_sigthread ();
       wait_for_completion = p != myself_nowait && _my_tls.isinitialized ();
@@ -697,8 +705,6 @@ sig_send (_pinfo *p, siginfo_t& si, _threadinfo *tls)
       goto out;
     }
 
-  sigproc_printf ("pid %d, signal %d, its_me %d", p->pid, si.si_signo, its_me);
-
   if (its_me)
     {
       sendsig = myself->sendsig;
@@ -727,6 +733,8 @@ sig_send (_pinfo *p, siginfo_t& si, _threadinfo *tls)
       pack.wakeup = NULL;
     }
 
+  sigproc_printf ("sendsig %p, pid %d, signal %d, its_me %d", sendsig, p->pid, si.si_signo, its_me);
+
   sigset_t pending;
   if (!its_me)
     pack.mask = NULL;
@@ -1104,6 +1112,8 @@ wait_sig (VOID *self)
 
   exception_list el;
   _my_tls.init_threadlist_exceptions (&el);
+  debug_printf ("entering ReadFile loop, readsig %p, myself->sendsig %p",
+		readsig, myself->sendsig);
 
   for (;;)
     {