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Diffstat (limited to 'gcc/ada/s-stchop-limit.ads')
| -rw-r--r-- | gcc/ada/s-stchop-limit.ads | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/ada/s-stchop-limit.ads b/gcc/ada/s-stchop-limit.ads new file mode 100644 index 000000000..237c0f9e0 --- /dev/null +++ b/gcc/ada/s-stchop-limit.ads @@ -0,0 +1,53 @@ +------------------------------------------------------------------------------ +-- -- +-- 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; |