| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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 -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- 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; |
