Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/system-darwin-arm.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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68:561a7518be6b | 111:04ced10e8804 |
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1 ------------------------------------------------------------------------------ | |
2 -- -- | |
3 -- GNAT RUN-TIME COMPONENTS -- | |
4 -- -- | |
5 -- S Y S T E M -- | |
6 -- -- | |
7 -- S p e c -- | |
8 -- (Darwin/ARM Version) -- | |
9 -- -- | |
10 -- Copyright (C) 1992-2017, Free Software Foundation, Inc. -- | |
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- -- | |
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. -- | |
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/>. -- | |
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; | |
39 -- Note that we take advantage of the implementation permission to make | |
40 -- this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada | |
41 -- 2005, this is Pure in any case (AI-362). | |
42 | |
43 pragma No_Elaboration_Code_All; | |
44 -- Allow the use of that restriction in units that WITH this unit | |
45 | |
46 type Name is (SYSTEM_NAME_GNAT); | |
47 System_Name : constant Name := SYSTEM_NAME_GNAT; | |
48 | |
49 -- System-Dependent Named Numbers | |
50 | |
51 Min_Int : constant := Long_Long_Integer'First; | |
52 Max_Int : constant := Long_Long_Integer'Last; | |
53 | |
54 Max_Binary_Modulus : constant := 2 ** Long_Long_Integer'Size; | |
55 Max_Nonbinary_Modulus : constant := 2 ** Integer'Size - 1; | |
56 | |
57 Max_Base_Digits : constant := Long_Long_Float'Digits; | |
58 Max_Digits : constant := Long_Long_Float'Digits; | |
59 | |
60 Max_Mantissa : constant := 63; | |
61 Fine_Delta : constant := 2.0 ** (-Max_Mantissa); | |
62 | |
63 Tick : constant := 0.01; | |
64 | |
65 -- Storage-related Declarations | |
66 | |
67 type Address is private; | |
68 pragma Preelaborable_Initialization (Address); | |
69 Null_Address : constant Address; | |
70 | |
71 Storage_Unit : constant := 8; | |
72 Word_Size : constant := Standard'Word_Size; | |
73 Memory_Size : constant := 2 ** Word_Size; | |
74 | |
75 -- Address comparison | |
76 | |
77 function "<" (Left, Right : Address) return Boolean; | |
78 function "<=" (Left, Right : Address) return Boolean; | |
79 function ">" (Left, Right : Address) return Boolean; | |
80 function ">=" (Left, Right : Address) return Boolean; | |
81 function "=" (Left, Right : Address) return Boolean; | |
82 | |
83 pragma Import (Intrinsic, "<"); | |
84 pragma Import (Intrinsic, "<="); | |
85 pragma Import (Intrinsic, ">"); | |
86 pragma Import (Intrinsic, ">="); | |
87 pragma Import (Intrinsic, "="); | |
88 | |
89 -- Other System-Dependent Declarations | |
90 | |
91 type Bit_Order is (High_Order_First, Low_Order_First); | |
92 Default_Bit_Order : constant Bit_Order := Low_Order_First; | |
93 pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning | |
94 | |
95 -- Priority-related Declarations (RM D.1) | |
96 | |
97 -- The values defined here are derived from the following Darwin | |
98 -- sources: | |
99 -- | |
100 -- Libc/pthreads/pthread.c | |
101 -- pthread_init calls host_info to retrieve the HOST_PRIORITY_INFO. | |
102 -- This file includes "pthread_internals". | |
103 -- Libc/pthreads/pthread_internals.h | |
104 -- This file includes <mach/mach.h>. | |
105 -- xnu/osfmk/mach/mach.h | |
106 -- This file includes <mach/mach_types.h>. | |
107 -- xnu/osfmk/mach/mach_types.h | |
108 -- This file includes <mach/host_info.h>. | |
109 -- xnu/osfmk/mach/host_info.h | |
110 -- This file contains the definition of the host_info_t data structure | |
111 -- and the function prototype for host_info. | |
112 -- xnu/osfmk/kern/host.c | |
113 -- This file defines the function host_info which sets the | |
114 -- priority_info field of struct host_info_t. This file includes | |
115 -- <kern/processor.h>. | |
116 -- xnu/osfmk/kern/processor.h | |
117 -- This file includes <kern/sched.h>. | |
118 -- xnu/osfmk/kern/sched.h | |
119 -- This file defines the values for each level of priority. | |
120 | |
121 Max_Interrupt_Priority : constant Positive := 63; | |
122 Max_Priority : constant Positive := Max_Interrupt_Priority - 1; | |
123 | |
124 subtype Any_Priority is Integer range 0 .. Max_Interrupt_Priority; | |
125 subtype Priority is Any_Priority range 0 .. Max_Priority; | |
126 subtype Interrupt_Priority is Any_Priority | |
127 range Priority'Last + 1 .. Max_Interrupt_Priority; | |
128 | |
129 Default_Priority : constant Priority := | |
130 (Priority'Last - Priority'First) / 2; | |
131 | |
132 private | |
133 | |
134 type Address is mod Memory_Size; | |
135 Null_Address : constant Address := 0; | |
136 | |
137 -------------------------------------- | |
138 -- System Implementation Parameters -- | |
139 -------------------------------------- | |
140 | |
141 -- These parameters provide information about the target that is used | |
142 -- by the compiler. They are in the private part of System, where they | |
143 -- can be accessed using the special circuitry in the Targparm unit | |
144 -- whose source should be consulted for more detailed descriptions | |
145 -- of the individual switch values. | |
146 | |
147 Backend_Divide_Checks : constant Boolean := False; | |
148 Backend_Overflow_Checks : constant Boolean := True; | |
149 Command_Line_Args : constant Boolean := True; | |
150 Configurable_Run_Time : constant Boolean := False; | |
151 Denorm : constant Boolean := True; | |
152 Duration_32_Bits : constant Boolean := False; | |
153 Exit_Status_Supported : constant Boolean := True; | |
154 Fractional_Fixed_Ops : constant Boolean := False; | |
155 Frontend_Layout : constant Boolean := False; | |
156 Machine_Overflows : constant Boolean := False; | |
157 Machine_Rounds : constant Boolean := True; | |
158 Preallocated_Stacks : constant Boolean := False; | |
159 Signed_Zeros : constant Boolean := True; | |
160 Stack_Check_Default : constant Boolean := False; | |
161 Stack_Check_Probes : constant Boolean := True; | |
162 Stack_Check_Limits : constant Boolean := False; | |
163 Support_Aggregates : constant Boolean := True; | |
164 Support_Atomic_Primitives : constant Boolean := True; | |
165 Support_Composite_Assign : constant Boolean := True; | |
166 Support_Composite_Compare : constant Boolean := True; | |
167 Support_Long_Shifts : constant Boolean := True; | |
168 Always_Compatible_Rep : constant Boolean := False; | |
169 Suppress_Standard_Library : constant Boolean := False; | |
170 Use_Ada_Main_Program_Name : constant Boolean := False; | |
171 Frontend_Exceptions : constant Boolean := False; | |
172 ZCX_By_Default : constant Boolean := True; | |
173 | |
174 end System; |