[thirdparty/gcc.git] / gcc / ada / system-linux-sparc.ads

------------------------------------------------------------------------------
--                                                                          --
--                        GNAT RUN-TIME COMPONENTS                          --
--                                                                          --
--                               S Y S T E M                                --
--                                                                          --
--                                 S p e c                                  --
--                          (GNU/Linux-SPARC Version)                       --
--                                                                          --
--          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 --
-- 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.      --
--                                                                          --
------------------------------------------------------------------------------

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)

   type Name is (SYSTEM_NAME_GNAT);
   System_Name : constant Name := SYSTEM_NAME_GNAT;

   --  System-Dependent Named Numbers

   Min_Int               : constant := Long_Long_Integer'First;
   Max_Int               : constant := Long_Long_Integer'Last;

   Max_Binary_Modulus    : constant := 2 ** Long_Long_Integer'Size;
   Max_Nonbinary_Modulus : constant := Integer'Last;

   Max_Base_Digits       : constant := Long_Long_Float'Digits;
   Max_Digits            : constant := Long_Long_Float'Digits;

   Max_Mantissa          : constant := 63;
   Fine_Delta            : constant := 2.0 ** (-Max_Mantissa);

   Tick                  : constant := 0.000_001;

   --  Storage-related Declarations

   type Address is private;
   Null_Address : constant Address;

   Storage_Unit : constant := 8;
   Word_Size    : constant := 32;
   Memory_Size  : constant := 2 ** 32;

   --  Address comparison

   function "<"  (Left, Right : Address) return Boolean;
   function "<=" (Left, Right : Address) return Boolean;
   function ">"  (Left, Right : Address) return Boolean;
   function ">=" (Left, Right : Address) return Boolean;
   function "="  (Left, Right : Address) return Boolean;

   pragma Import (Intrinsic, "<");
   pragma Import (Intrinsic, "<=");
   pragma Import (Intrinsic, ">");
   pragma Import (Intrinsic, ">=");
   pragma Import (Intrinsic, "=");

   --  Other System-Dependent Declarations

   type Bit_Order is (High_Order_First, Low_Order_First);
   Default_Bit_Order : constant Bit_Order := High_Order_First;
   pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning

   --  Priority-related Declarations (RM D.1)

   Max_Priority           : constant Positive := 30;
   Max_Interrupt_Priority : constant Positive := 31;

   subtype Any_Priority       is Integer      range  0 .. 31;
   subtype Priority           is Any_Priority range  0 .. 30;
   subtype Interrupt_Priority is Any_Priority range 31 .. 31;

   Default_Priority : constant Priority := 15;

private

   type Address is mod Memory_Size;
   Null_Address : constant Address := 0;

   --------------------------------------
   -- System Implementation Parameters --
   --------------------------------------

   --  These parameters provide information about the target that is used
   --  by the compiler. They are in the private part of System, where they
   --  can be accessed using the special circuitry in the Targparm unit
   --  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;
   Compiler_System_Version   : constant Boolean := False;
   Configurable_Run_Time     : constant Boolean := False;
   Denorm                    : constant Boolean := True;
   Duration_32_Bits          : constant Boolean := False;
   Exit_Status_Supported     : constant Boolean := True;
   Fractional_Fixed_Ops      : constant Boolean := False;
   Frontend_Layout           : 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;
   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;
   Suppress_Standard_Library : constant Boolean := False;
   Use_Ada_Main_Program_Name : constant Boolean := False;
   ZCX_By_Default            : constant Boolean := True;
   GCC_ZCX_Support           : constant Boolean := True;
   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;
Commit	Line	Data
fe8a06f2 JM	1	------------------------------------------------------------------------------
	2	-- --
	3	-- GNAT RUN-TIME COMPONENTS --
	4	-- --
	5	-- S Y S T E M --
	6	-- --
	7	-- S p e c --
	8	-- (GNU/Linux-SPARC Version) --
	9	-- --
d236ace7	10	-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
fe8a06f2 JM	11	-- --
	12	-- This specification is derived from the Ada Reference Manual for use with --
	13	-- GNAT. The copyright notice above, and the license provisions that follow --
	14	-- apply solely to the contents of the part following the private keyword. --
	15	-- --
	16	-- GNAT is free software; you can redistribute it and/or modify it under --
	17	-- terms of the GNU General Public License as published by the Free Soft- --
748086b7	18	-- ware Foundation; either version 3, or (at your option) any later ver- --
fe8a06f2 JM	19	-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
fe8a06f2 JM	20	-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
748086b7 JJ	21	-- or FITNESS FOR A PARTICULAR PURPOSE. --
	22	-- --
	23	-- As a special exception under Section 7 of GPL version 3, you are granted --
	24	-- additional permissions described in the GCC Runtime Library Exception, --
	25	-- version 3.1, as published by the Free Software Foundation. --
	26	-- --
	27	-- You should have received a copy of the GNU General Public License and --
	28	-- a copy of the GCC Runtime Library Exception along with this program; --
	29	-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
	30	-- <http://www.gnu.org/licenses/>. --
fe8a06f2 JM	31	-- --
	32	-- GNAT was originally developed by the GNAT team at New York University. --
	33	-- Extensive contributions were provided by Ada Core Technologies Inc. --
	34	-- --
	35	------------------------------------------------------------------------------
	36
	37	package System is
	38	pragma Pure (System);
	39	-- Note that we take advantage of the implementation permission to
	40	-- make this unit Pure instead of Preelaborable, see RM 13.7(36)
	41
	42	type Name is (SYSTEM_NAME_GNAT);
	43	System_Name : constant Name := SYSTEM_NAME_GNAT;
	44
	45	-- System-Dependent Named Numbers
	46
	47	Min_Int : constant := Long_Long_Integer'First;
	48	Max_Int : constant := Long_Long_Integer'Last;
	49
	50	Max_Binary_Modulus : constant := 2 ** Long_Long_Integer'Size;
	51	Max_Nonbinary_Modulus : constant := Integer'Last;
	52
	53	Max_Base_Digits : constant := Long_Long_Float'Digits;
	54	Max_Digits : constant := Long_Long_Float'Digits;
	55
	56	Max_Mantissa : constant := 63;
	57	Fine_Delta : constant := 2.0 ** (-Max_Mantissa);
	58
391bdf45	59	Tick : constant := 0.000_001;
fe8a06f2 JM	60
	61	-- Storage-related Declarations
	62
	63	type Address is private;
	64	Null_Address : constant Address;
	65
	66	Storage_Unit : constant := 8;
	67	Word_Size : constant := 32;
	68	Memory_Size : constant := 2 ** 32;
	69
	70	-- Address comparison
	71
	72	function "<" (Left, Right : Address) return Boolean;
	73	function "<=" (Left, Right : Address) return Boolean;
	74	function ">" (Left, Right : Address) return Boolean;
	75	function ">=" (Left, Right : Address) return Boolean;
	76	function "=" (Left, Right : Address) return Boolean;
	77
	78	pragma Import (Intrinsic, "<");
	79	pragma Import (Intrinsic, "<=");
	80	pragma Import (Intrinsic, ">");
	81	pragma Import (Intrinsic, ">=");
	82	pragma Import (Intrinsic, "=");
	83
	84	-- Other System-Dependent Declarations
	85
	86	type Bit_Order is (High_Order_First, Low_Order_First);
	87	Default_Bit_Order : constant Bit_Order := High_Order_First;
ea30850a	88	pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning
fe8a06f2 JM	89
	90	-- Priority-related Declarations (RM D.1)
	91
	92	Max_Priority : constant Positive := 30;
	93	Max_Interrupt_Priority : constant Positive := 31;
	94
	95	subtype Any_Priority is Integer range 0 .. 31;
	96	subtype Priority is Any_Priority range 0 .. 30;
	97	subtype Interrupt_Priority is Any_Priority range 31 .. 31;
	98
	99	Default_Priority : constant Priority := 15;
	100
	101	private
	102
	103	type Address is mod Memory_Size;
	104	Null_Address : constant Address := 0;
	105
	106	--------------------------------------
	107	-- System Implementation Parameters --
	108	--------------------------------------
	109
	110	-- These parameters provide information about the target that is used
	111	-- by the compiler. They are in the private part of System, where they
	112	-- can be accessed using the special circuitry in the Targparm unit
	113	-- whose source should be consulted for more detailed descriptions
	114	-- of the individual switch values.
	115
	116	AAMP : constant Boolean := False;
	117	Backend_Divide_Checks : constant Boolean := False;
	118	Backend_Overflow_Checks : constant Boolean := False;
	119	Command_Line_Args : constant Boolean := True;
0b6eb8e1	120	Compiler_System_Version : constant Boolean := False;
fe8a06f2 JM	121	Configurable_Run_Time : constant Boolean := False;
	122	Denorm : constant Boolean := True;
	123	Duration_32_Bits : constant Boolean := False;
	124	Exit_Status_Supported : constant Boolean := True;
	125	Fractional_Fixed_Ops : constant Boolean := False;
	126	Frontend_Layout : constant Boolean := False;
fe8a06f2 JM	127	Machine_Overflows : constant Boolean := False;
	128	Machine_Rounds : constant Boolean := True;
	129	OpenVMS : constant Boolean := False;
	130	Preallocated_Stacks : constant Boolean := False;
	131	Signed_Zeros : constant Boolean := True;
	132	Stack_Check_Default : constant Boolean := False;
	133	Stack_Check_Probes : constant Boolean := False;
	134	Support_64_Bit_Divides : constant Boolean := True;
	135	Support_Aggregates : constant Boolean := True;
	136	Support_Composite_Assign : constant Boolean := True;
	137	Support_Composite_Compare : constant Boolean := True;
	138	Support_Long_Shifts : constant Boolean := True;
	139	Suppress_Standard_Library : constant Boolean := False;
	140	Use_Ada_Main_Program_Name : constant Boolean := False;
	141	ZCX_By_Default : constant Boolean := True;
	142	GCC_ZCX_Support : constant Boolean := True;
	143	Front_End_ZCX_Support : constant Boolean := False;
	144
	145	-- Obsolete entries, to be removed eventually (bootstrap issues!)
	146
	147	High_Integrity_Mode : constant Boolean := False;
	148	Long_Shifts_Inlined : constant Boolean := True;
	149
	150	end System;