-- S p e c --
-- (LynxOS x86 Version) --
-- --
--- Copyright (C) 1992-2003 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, 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 --
-- --
-- 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 2, or (at your option) any later ver- --
+-- 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. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- 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. --
------------------------------------------------------------------------------
package System is
-pragma Pure (System);
--- Note that we take advantage of the implementation permission to
--- make this unit Pure instead of Preelaborable, see RM 13.7(36)
+ pragma Pure;
+ -- Note that we take advantage of the implementation permission to make
+ -- this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada
+ -- 2005, this is Pure in any case (AI-362).
type Name is (SYSTEM_NAME_GNAT);
System_Name : constant Name := SYSTEM_NAME_GNAT;
Max_Int : constant := Long_Long_Integer'Last;
Max_Binary_Modulus : constant := 2 ** Long_Long_Integer'Size;
- Max_Nonbinary_Modulus : constant := Integer'Last;
+ Max_Nonbinary_Modulus : constant := 2 ** Integer'Size - 1;
Max_Base_Digits : constant := Long_Long_Float'Digits;
Max_Digits : constant := Long_Long_Float'Digits;
-- Storage-related Declarations
type Address is private;
+ pragma Preelaborable_Initialization (Address);
Null_Address : constant Address;
Storage_Unit : constant := 8;
type Bit_Order is (High_Order_First, Low_Order_First);
Default_Bit_Order : constant Bit_Order := Low_Order_First;
+ pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning
-- Priority-related Declarations (RM D.1)
- Max_Priority : constant Positive := 254;
+ -- 17 is the system determined default priority for user applications
+ -- running on LynxOS.
+
+ -- The standard (Rm 13.7) requires that Default_Priority has the value:
+
+ -- (Priority'First + Priority'Last) / 2
+
+ -- To allow an appropriate value for Default_Priority and expose a useful
+ -- range of priorities to the user, we use a range of 0 .. 34 for subtype
+ -- Priority.
+
+ -- The rest of the range allowed by the system from 35 to 255 is made
+ -- available here in Interrupt_Priority.
+
+ Max_Priority : constant Positive := 34;
Max_Interrupt_Priority : constant Positive := 255;
subtype Any_Priority is Integer range 0 .. 255;
- subtype Priority is Any_Priority range 0 .. 254;
- subtype Interrupt_Priority is Any_Priority range 255 .. 255;
+ subtype Priority is Any_Priority range 0 .. 34;
+ subtype Interrupt_Priority is Any_Priority range 35 .. 255;
- Default_Priority : constant Priority := 15;
+ Default_Priority : constant Priority := 17;
private
-- whose source should be consulted for more detailed descriptions
-- of the individual switch values.
- AAMP : constant Boolean := False;
Backend_Divide_Checks : constant Boolean := False;
Backend_Overflow_Checks : constant Boolean := False;
Command_Line_Args : constant Boolean := True;
Exit_Status_Supported : constant Boolean := True;
Fractional_Fixed_Ops : constant Boolean := False;
Frontend_Layout : constant Boolean := False;
- Functions_Return_By_DSP : constant Boolean := False;
Machine_Overflows : constant Boolean := False;
Machine_Rounds : constant Boolean := True;
- OpenVMS : constant Boolean := False;
+ Preallocated_Stacks : constant Boolean := False;
Signed_Zeros : constant Boolean := True;
Stack_Check_Default : constant Boolean := False;
- Stack_Check_Probes : constant Boolean := False;
+ Stack_Check_Probes : constant Boolean := True;
+ Stack_Check_Limits : constant Boolean := False;
Support_64_Bit_Divides : constant Boolean := True;
Support_Aggregates : constant Boolean := True;
Support_Composite_Assign : constant Boolean := True;
Support_Composite_Compare : constant Boolean := True;
Support_Long_Shifts : constant Boolean := True;
+ Always_Compatible_Rep : constant Boolean := False;
Suppress_Standard_Library : constant Boolean := False;
Use_Ada_Main_Program_Name : constant Boolean := False;
ZCX_By_Default : constant Boolean := False;
GCC_ZCX_Support : constant Boolean := False;
- Front_End_ZCX_Support : constant Boolean := False;
-
- -- Obsolete entries, to be removed eventually (bootstrap issues!)
-
- High_Integrity_Mode : constant Boolean := False;
- Long_Shifts_Inlined : constant Boolean := True;
end System;
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