projects / thirdparty / gcc.git / blame
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1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3084fecd | 3 | -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
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4 | -- -- |
| 5 | -- A D A . I N T E R R U P T S -- | |
| 6 | -- -- | |
| 7 | -- B o d y -- | |
| 8 | -- -- | |
| cfc29a96 | 9 | -- Copyright (C) 1991-2017, Florida State University -- |
| 4b490c1e | 10 | -- Copyright (C) 1995-2020, AdaCore -- |
| d23b8f57 | 11 | -- -- |
| 607d0635 | 12 | -- GNAT is free software; you can redistribute it and/or modify it under -- |
| d23b8f57 | 13 | -- terms of the GNU General Public License as published by the Free Soft- -- |
| 607d0635 AC |
14 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| 15 | -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |
| d23b8f57 | 16 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
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17 | -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| 18 | -- -- | |
| 19 | -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 20 | -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 21 | -- version 3.1, as published by the Free Software Foundation. -- | |
| 22 | -- -- | |
| 23 | -- You should have received a copy of the GNU General Public License and -- | |
| 24 | -- a copy of the GCC Runtime Library Exception along with this program; -- | |
| 25 | -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
| 26 | -- <http://www.gnu.org/licenses/>. -- | |
| d23b8f57 | 27 | -- -- |
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28 | -- GNARL was developed by the GNARL team at Florida State University. -- |
| 29 | -- Extensive contributions were provided by Ada Core Technologies, Inc. -- | |
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30 | -- -- |
| 31 | ------------------------------------------------------------------------------ | |
| 32 | ||
| cecaf88a | 33 | with Ada.Unchecked_Conversion; |
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34 | |
| 35 | package body Ada.Interrupts is | |
| 36 | ||
| 37 | package SI renames System.Interrupts; | |
| 38 | ||
| cecaf88a | 39 | function To_System is new Ada.Unchecked_Conversion |
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40 | (Parameterless_Handler, SI.Parameterless_Handler); |
| 41 | ||
| cecaf88a | 42 | function To_Ada is new Ada.Unchecked_Conversion |
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43 | (SI.Parameterless_Handler, Parameterless_Handler); |
| 44 | ||
| 45 | -------------------- | |
| 46 | -- Attach_Handler -- | |
| 47 | -------------------- | |
| 48 | ||
| 49 | procedure Attach_Handler | |
| 50 | (New_Handler : Parameterless_Handler; | |
| 51 | Interrupt : Interrupt_ID) | |
| 52 | is | |
| 53 | begin | |
| 54 | SI.Attach_Handler | |
| 55 | (To_System (New_Handler), SI.Interrupt_ID (Interrupt), False); | |
| 56 | end Attach_Handler; | |
| 57 | ||
| 58 | --------------------- | |
| 59 | -- Current_Handler -- | |
| 60 | --------------------- | |
| 61 | ||
| 62 | function Current_Handler | |
| fa7c4d23 | 63 | (Interrupt : Interrupt_ID) return Parameterless_Handler |
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64 | is |
| 65 | begin | |
| 66 | return To_Ada (SI.Current_Handler (SI.Interrupt_ID (Interrupt))); | |
| 67 | end Current_Handler; | |
| 68 | ||
| 69 | -------------------- | |
| 70 | -- Detach_Handler -- | |
| 71 | -------------------- | |
| 72 | ||
| fa7c4d23 | 73 | procedure Detach_Handler (Interrupt : Interrupt_ID) is |
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74 | begin |
| 75 | SI.Detach_Handler (SI.Interrupt_ID (Interrupt), False); | |
| 76 | end Detach_Handler; | |
| 77 | ||
| 78 | ---------------------- | |
| 79 | -- Exchange_Handler -- | |
| 80 | ---------------------- | |
| 81 | ||
| 82 | procedure Exchange_Handler | |
| 83 | (Old_Handler : out Parameterless_Handler; | |
| 84 | New_Handler : Parameterless_Handler; | |
| 85 | Interrupt : Interrupt_ID) | |
| 86 | is | |
| 87 | H : SI.Parameterless_Handler; | |
| 88 | ||
| 89 | begin | |
| 90 | SI.Exchange_Handler | |
| 91 | (H, To_System (New_Handler), | |
| 92 | SI.Interrupt_ID (Interrupt), False); | |
| 93 | Old_Handler := To_Ada (H); | |
| 94 | end Exchange_Handler; | |
| 95 | ||
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96 | ------------- |
| 97 | -- Get_CPU -- | |
| 98 | ------------- | |
| 99 | ||
| 100 | function Get_CPU | |
| 101 | (Interrupt : Interrupt_ID) return System.Multiprocessors.CPU_Range | |
| 102 | is | |
| 103 | pragma Unreferenced (Interrupt); | |
| 104 | ||
| 105 | begin | |
| 106 | -- The underlying operating system does not indicate the processor on | |
| 107 | -- which the handler for Interrupt is executed. | |
| 108 | ||
| 109 | return System.Multiprocessors.Not_A_Specific_CPU; | |
| 110 | end Get_CPU; | |
| 111 | ||
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112 | ----------------- |
| 113 | -- Is_Attached -- | |
| 114 | ----------------- | |
| 115 | ||
| 116 | function Is_Attached (Interrupt : Interrupt_ID) return Boolean is | |
| 117 | begin | |
| 118 | return SI.Is_Handler_Attached (SI.Interrupt_ID (Interrupt)); | |
| 119 | end Is_Attached; | |
| 120 | ||
| 121 | ----------------- | |
| 122 | -- Is_Reserved -- | |
| 123 | ----------------- | |
| 124 | ||
| 125 | function Is_Reserved (Interrupt : Interrupt_ID) return Boolean is | |
| 126 | begin | |
| 127 | return SI.Is_Reserved (SI.Interrupt_ID (Interrupt)); | |
| 128 | end Is_Reserved; | |
| 129 | ||
| 130 | --------------- | |
| 131 | -- Reference -- | |
| 132 | --------------- | |
| 133 | ||
| 134 | function Reference (Interrupt : Interrupt_ID) return System.Address is | |
| 135 | begin | |
| 136 | return SI.Reference (SI.Interrupt_ID (Interrupt)); | |
| 137 | end Reference; | |
| 138 | ||
| 139 | end Ada.Interrupts; |