1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
8 -- (GNU/Linux-SPARCV9 Version) --
10 -- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
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. --
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- --
18 -- ware Foundation; either version 3, or (at your option) any later ver- --
19 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
20 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
21 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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. --
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/>. --
32 -- GNAT was originally developed by the GNAT team at New York University. --
33 -- Extensive contributions were provided by Ada Core Technologies Inc. --
35 ------------------------------------------------------------------------------
39 -- Note that we take advantage of the implementation permission to
40 -- make this unit Pure instead of Preelaborable, see RM 13.7(36)
42 type Name
is (SYSTEM_NAME_GNAT
);
43 System_Name
: constant Name
:= SYSTEM_NAME_GNAT
;
45 -- System-Dependent Named Numbers
47 Min_Int
: constant := Long_Long_Integer'First;
48 Max_Int
: constant := Long_Long_Integer'Last;
50 Max_Binary_Modulus
: constant := 2 ** Long_Long_Integer'Size;
51 Max_Nonbinary_Modulus
: constant := Integer'Last;
53 Max_Base_Digits
: constant := Long_Long_Float'Digits;
54 Max_Digits
: constant := Long_Long_Float'Digits;
56 Max_Mantissa
: constant := 63;
57 Fine_Delta
: constant := 2.0 ** (-Max_Mantissa
);
59 Tick
: constant := 0.000_001
;
61 -- Storage-related Declarations
63 type Address
is private;
64 Null_Address
: constant Address
;
66 Storage_Unit
: constant := 8;
67 Word_Size
: constant := 64;
68 Memory_Size
: constant := 2 ** 64;
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;
78 pragma Import
(Intrinsic
, "<");
79 pragma Import
(Intrinsic
, "<=");
80 pragma Import
(Intrinsic
, ">");
81 pragma Import
(Intrinsic
, ">=");
82 pragma Import
(Intrinsic
, "=");
84 -- Other System-Dependent Declarations
86 type Bit_Order
is (High_Order_First
, Low_Order_First
);
87 Default_Bit_Order
: constant Bit_Order
:= High_Order_First
;
88 pragma Warnings
(Off
, Default_Bit_Order
); -- kill constant condition warning
90 -- Priority-related Declarations (RM D.1)
92 Max_Priority
: constant Positive := 30;
93 Max_Interrupt_Priority
: constant Positive := 31;
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;
99 Default_Priority
: constant Priority
:= 15;
103 type Address
is mod Memory_Size
;
104 Null_Address
: constant Address
:= 0;
106 --------------------------------------
107 -- System Implementation Parameters --
108 --------------------------------------
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.
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;
120 Compiler_System_Version
: constant Boolean := False;
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;
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;
145 -- Obsolete entries, to be removed eventually (bootstrap issues!)
147 High_Integrity_Mode
: constant Boolean := False;
148 Long_Shifts_Inlined
: constant Boolean := True;