ucrtbase: Hook up _crt_atexit.

dlls/api-ms-win-crt-runtime-l1-1-0/api-ms-win-crt-runtime-l1-1-0.spec

@@ -29,7 +29,7 @@
 @ cdecl _controlfp(long long) ucrtbase._controlfp
 @ cdecl _controlfp_s(ptr long long) ucrtbase._controlfp_s
 @ stub _crt_at_quick_exit
-@ stub _crt_atexit
+@ cdecl _crt_atexit(ptr) ucrtbase._crt_atexit
 @ stub _crt_debugger_hook
 @ cdecl _endthread() ucrtbase._endthread
 @ cdecl _endthreadex(long) ucrtbase._endthreadex

dlls/msvcrt/exit.c

@@ -326,6 +326,15 @@ int CDECL MSVCRT_atexit(void (*func)(void))
 }
 
 /*********************************************************************
+ *		_crt_atexit (UCRTBASE.@)
+ */
+int CDECL MSVCRT__crt_atexit(void (*func)(void))
+{
+  TRACE("(%p)\n", func);
+  return MSVCRT__onexit((MSVCRT__onexit_t)func) == (MSVCRT__onexit_t)func ? 0 : -1;
+}
+
+/*********************************************************************
  *		_set_purecall_handler (MSVCR71.@)
  */
 MSVCRT_purecall_handler CDECL _set_purecall_handler(MSVCRT_purecall_handler function)

dlls/ucrtbase/ucrtbase.spec

@@ -241,7 +241,7 @@
 @ cdecl _creat(str long) MSVCRT__creat
 @ cdecl _create_locale(long str) MSVCRT__create_locale
 @ stub _crt_at_quick_exit
-@ stub _crt_atexit
+@ cdecl _crt_atexit(ptr) MSVCRT__crt_atexit
 @ stub _crt_debugger_hook
 @ cdecl _ctime32(ptr) MSVCRT__ctime32
 @ cdecl _ctime32_s(str long ptr) MSVCRT__ctime32_s