Mercurial > hg > CbC > CbC_gcc
diff gcc/ada/libgnat/s-restri.ads @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/ada/libgnat/s-restri.ads Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,77 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S Y S T E M . R E S T R I C T I O N S -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2004-2017, Free Software Foundation, Inc. -- +-- -- +-- GNAT 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/>. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package provides a run-time interface for checking the set of +-- restrictions that applies to the current partition. The information +-- comes both from explicit restriction pragmas present, and also from +-- compile time checking. + +-- The package simply contains an instantiation of System.Rident, but +-- with names discarded, so that we do not have image tables for the +-- large restriction enumeration types at run time. + +pragma Compiler_Unit_Warning; + +with System.Rident; + +package System.Restrictions is + pragma Preelaborate; + + pragma Discard_Names; + package Rident is new System.Rident; + -- Instantiate a copy of System.Rident without enumeration image names + + Run_Time_Restrictions : Rident.Restrictions_Info; + -- Restrictions as set by the user, or detected by the binder. See details + -- in package System.Rident for what restrictions are included in the list + -- and the format of the information. + -- + -- Note that a restriction which is both Set and Violated at run-time means + -- that the violation was detected as part of the Ada run-time and not as + -- part of user code. + + ------------------ + -- Subprograms -- + ----------------- + + function Abort_Allowed return Boolean; + pragma Inline (Abort_Allowed); + -- Tests to see if abort is allowed by the current restrictions settings. + -- For abort to be allowed, either No_Abort_Statements must be False, or + -- Max_Asynchronous_Select_Nesting must be non-zero. + + function Tasking_Allowed return Boolean; + pragma Inline (Tasking_Allowed); + -- Tests to see if tasking operations are allowed by the current + -- restrictions settings. For tasking to be allowed, No_Tasking must + -- be False, and Max_Tasks must not be set to zero. + +end System.Restrictions;