annotate gcc/ada/libgnat/g-memdum.ads @ 111:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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children 84e7813d76e9
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111
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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME COMPONENTS --
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4 -- --
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5 -- G N A T . M E M O R Y _ D U M P --
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6 -- --
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7 -- S p e c --
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8 -- --
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9 -- Copyright (C) 2003-2017, AdaCore --
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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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- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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17 -- --
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18 -- As a special exception under Section 7 of GPL version 3, you are granted --
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19 -- additional permissions described in the GCC Runtime Library Exception, --
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20 -- version 3.1, as published by the Free Software Foundation. --
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21 -- --
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22 -- You should have received a copy of the GNU General Public License and --
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23 -- a copy of the GCC Runtime Library Exception along with this program; --
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24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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25 -- <http://www.gnu.org/licenses/>. --
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26 -- --
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27 -- GNAT was originally developed by the GNAT team at New York University. --
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28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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29 -- --
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30 ------------------------------------------------------------------------------
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31
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32 -- A routine for dumping memory to either standard output or standard error.
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33 -- Uses GNAT.IO for actual output (use the controls in GNAT.IO to specify
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34 -- the destination of the output, which by default is Standard_Output).
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35
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36 with System;
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37
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38 package GNAT.Memory_Dump is
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39 pragma Preelaborate;
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40
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41 type Prefix_Type is (Absolute_Address, Offset, None);
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42
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43 procedure Dump
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44 (Addr : System.Address;
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45 Count : Natural);
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46 -- Dumps indicated number (Count) of bytes, starting at the address given
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47 -- by Addr. The coding of this routine in its current form assumes the case
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48 -- of a byte addressable machine (and is therefore inapplicable to machines
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49 -- like the AAMP, where the storage unit is not 8 bits). The output is one
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50 -- or more lines in the following format, which is for the case of 32-bit
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51 -- addresses (64-bit addresses are handled appropriately):
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52 --
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53 -- 0234_3368: 66 67 68 . . . 73 74 75 "fghijklmnopqstuv"
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54 --
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55 -- All but the last line have 16 bytes. A question mark is used in the
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56 -- string data to indicate a non-printable character.
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57
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58 procedure Dump
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59 (Addr : System.Address;
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60 Count : Natural;
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61 Prefix : Prefix_Type);
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62 -- Same as above, but allows the selection of different line formats.
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63 -- If Prefix is set to Absolute_Address, the output is identical to the
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64 -- above version, each line starting with the absolute address of the
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65 -- first dumped storage element.
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66 --
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67 -- If Prefix is set to Offset, then instead each line starts with the
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68 -- indication of the offset relative to Addr:
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69 --
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70 -- 00: 66 67 68 . . . 73 74 75 "fghijklmnopqstuv"
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71 --
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72 -- Finally if Prefix is set to None, the prefix is suppressed altogether,
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73 -- and only the memory contents are displayed:
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74 --
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75 -- 66 67 68 . . . 73 74 75 "fghijklmnopqstuv"
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76
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77 end GNAT.Memory_Dump;