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authorNico Huber <nico.huber@secunet.com>2015-09-29 16:41:19 +0200
committerNico Huber <nico.h@gmx.de>2016-09-19 11:14:49 +0200
commitbe5492aec0a02e416cf12a7ad7517900540d9991 (patch)
tree2ca46cf377203c8146378bcc74a0be6317f09ef2 /src/lib/gnat/s-atacco.ads
parent2e09d2b239ff2dfdba89011fd64d9a07da0d8717 (diff)
downloadcoreboot-be5492aec0a02e416cf12a7ad7517900540d9991.tar.xz
Add minimal GNAT run time system (RTS)
Add a stripped-down version of libgnat. This is somehow comparable to libgcc but for Ada programs. It's licensed under GPLv3 but with the runtime library exception. So it's totally fine to link it with our GPLv2 code and keep it under GPLv2. Change-Id: Ie6522abf093f0a516b9ae18ddc69131bd721dc0c Signed-off-by: Nico Huber <nico.huber@secunet.com> Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/11836 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Diffstat (limited to 'src/lib/gnat/s-atacco.ads')
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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- S Y S T E M . A D D R E S S _ T O _ A C C E S S _ C O N V E R S I O N S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1992-2012, Free Software Foundation, Inc. --
+-- --
+-- This specification is derived from the Ada Reference Manual for use with --
+-- GNAT. The copyright notice above, and the license provisions that follow --
+-- apply solely to the contents of the part following the private keyword. --
+-- --
+-- 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. --
+-- --
+------------------------------------------------------------------------------
+
+generic
+ type Object (<>) is limited private;
+
+package System.Address_To_Access_Conversions is
+ pragma Preelaborate;
+
+ pragma Compile_Time_Warning
+ (Object'Unconstrained_Array,
+ "Object is unconstrained array type" & ASCII.LF &
+ "To_Pointer results may not have bounds");
+
+ type Object_Pointer is access all Object;
+ for Object_Pointer'Size use Standard'Address_Size;
+
+ pragma No_Strict_Aliasing (Object_Pointer);
+ -- Strictly speaking, this routine should not be used to generate pointers
+ -- to other than proper values of the proper type, but in practice, this
+ -- is done all the time. This pragma stops the compiler from doing some
+ -- optimizations that may cause unexpected results based on the assumption
+ -- of no strict aliasing.
+
+ function To_Pointer (Value : Address) return Object_Pointer;
+ function To_Address (Value : Object_Pointer) return Address;
+
+ pragma Import (Intrinsic, To_Pointer);
+ pragma Import (Intrinsic, To_Address);
+
+end System.Address_To_Access_Conversions;