------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- -- -- -- S Y S T E M . S T A C K _ C H E C K I N G . O P E R A T I O N S -- -- -- -- S p e c -- -- -- -- Copyright (C) 1999-2009, Free Software Foundation, Inc. -- -- -- -- GNARL is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- . -- -- -- -- GNARL was developed by the GNARL team at Florida State University. -- -- Extensive contributions were provided by Ada Core Technologies, Inc. -- -- -- ------------------------------------------------------------------------------ -- This version of this package is for implementations which use -- the stack limit approach (the limit of the stack is stored into a per -- thread variable). pragma Restrictions (No_Elaboration_Code); -- We want to guarantee the absence of elaboration code because the binder -- does not handle references to this package. pragma Polling (Off); -- Turn off polling, we do not want polling to take place during stack -- checking operations. It causes infinite loops and other problems. package System.Stack_Checking.Operations is pragma Preelaborate; procedure Initialize_Stack_Limit; pragma Export (C, Initialize_Stack_Limit, "__gnat_initialize_stack_limit"); -- This procedure is called before elaboration to setup the stack limit -- for the environment task and to register the hook to be called at -- task creation. end System.Stack_Checking.Operations;