* child_info: Bump child_info "version".

(child_info): Move some fields from child_info_spawn to here.
* cygheap.cc: Make cygheap pointers NOCOPY.
* dcrt0.cc (dll_crt0_1): Copy cygwin heap here regardless of whether we've been
forked or execed.
* dtable.cc (dtable::fixup_after_fork): Just release close-on-exec fds.
* exceptions.cc (stackdump): Respond to C warning.
* fork.cc: Reorganize to minimize stack copying.
(fork_child): New function.
(fork_parent): Ditto.
(sync_with_child): Don't suspend the forkee.
(sync_with_parent): Ditto.  Make into a function.
* heap.cc (heap_init): Add some debugging output.
* path.cc (path_conv::check): Add an assertion.
(has_suffix): Ditto.
* security.cc (get_pw_sid): Defend against NULL.
* sigproc.cc (proc_subproc): Fix debugging output.
(wait_sig): Ditto.
* strace.cc: Make statics NO_COPY throughout.
(strace::vsprntf): Defend against NULL.

winsup/cygwin/debug.cc

@@ -306,6 +306,10 @@ close_handle (const char *func, int ln, HANDLE h, const char *name, BOOL force)
     }
 
   unlock_debug ();
+#if 0 /* Uncomment to see CloseHandle failures */
+  if (!ret)
+    small_printf ("CloseHandle(%s) failed %s:%d\n", name, func, ln);
+#endif
   return ret;
 }
 #endif /*DEBUGGING*/