projects / thirdparty / gcc.git / blame
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|---|---|---|
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1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3 | -- GNAT COMPILER COMPONENTS -- | |
| 4 | -- -- | |
| 5 | -- S Y S T E M . A D D R E S S _ I M A G E -- | |
| 6 | -- -- | |
| 7 | -- B o d y -- | |
| 8 | -- -- | |
| 748086b7 | 9 | -- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- |
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10 | -- -- |
| 11 | -- GNAT is free software; you can redistribute it and/or modify it under -- | |
| 12 | -- terms of the GNU General Public License as published by the Free Soft- -- | |
| 748086b7 | 13 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
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14 | -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| 15 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
| 748086b7 JJ |
16 | -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| 17 | -- -- | |
| 18 | -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 19 | -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 20 | -- version 3.1, as published by the Free Software Foundation. -- | |
| 21 | -- -- | |
| 22 | -- You should have received a copy of the GNU General Public License and -- | |
| 23 | -- a copy of the GCC Runtime Library Exception along with this program; -- | |
| 24 | -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
| 25 | -- <http://www.gnu.org/licenses/>. -- | |
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26 | -- -- |
| 27 | -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 71ff80dc | 28 | -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
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29 | -- -- |
| 30 | ------------------------------------------------------------------------------ | |
| 31 | ||
| cecaf88a | 32 | with Ada.Unchecked_Conversion; |
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33 | |
| 34 | function System.Address_Image (A : Address) return String is | |
| 35 | ||
| 36 | Result : String (1 .. 2 * Address'Size / Storage_Unit); | |
| 37 | ||
| 38 | type Byte is mod 2 ** 8; | |
| 39 | for Byte'Size use 8; | |
| 40 | ||
| 41 | Hexdigs : | |
| 42 | constant array (Byte range 0 .. 15) of Character := "0123456789ABCDEF"; | |
| 43 | ||
| 44 | type Bytes is array (1 .. Address'Size / Storage_Unit) of Byte; | |
| 45 | for Bytes'Size use Address'Size; | |
| 46 | ||
| cecaf88a | 47 | function To_Bytes is new Ada.Unchecked_Conversion (Address, Bytes); |
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48 | |
| 49 | Byte_Sequence : constant Bytes := To_Bytes (A); | |
| 50 | ||
| 51 | LE : constant := Standard'Default_Bit_Order; | |
| 52 | BE : constant := 1 - LE; | |
| 53 | -- Set to 1/0 for True/False for Little-Endian/Big-Endian | |
| 54 | ||
| 55 | Start : constant Natural := BE * (1) + LE * (Bytes'Length); | |
| 56 | Incr : constant Integer := BE * (1) + LE * (-1); | |
| 57 | -- Start and increment for accessing characters of address string | |
| 58 | ||
| 59 | Ptr : Natural; | |
| 60 | -- Scan address string | |
| 61 | ||
| 62 | begin | |
| 63 | Ptr := Start; | |
| 64 | for N in Bytes'Range loop | |
| 65 | Result (2 * N - 1) := Hexdigs (Byte_Sequence (Ptr) / 16); | |
| 66 | Result (2 * N) := Hexdigs (Byte_Sequence (Ptr) mod 16); | |
| 67 | Ptr := Ptr + Incr; | |
| 68 | end loop; | |
| 69 | ||
| 70 | return Result; | |
| 71 | ||
| 72 | end System.Address_Image; |