1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- G N A T . M E M O R Y _ D U M P --
9 -- Copyright (C) 2003-2007, AdaCore --
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- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
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 --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 with System; use System;
35 with System.Storage_Elements; use System.Storage_Elements;
37 with GNAT.IO; use GNAT.IO;
38 with GNAT.Debug_Utilities; use GNAT.Debug_Utilities;
40 with Ada.Unchecked_Conversion;
42 package body GNAT.Memory_Dump is
48 procedure Dump (Addr : System.Address; Count : Natural) is
49 Ctr : Natural := Count;
50 -- Count of bytes left to output
52 Adr : Address := Addr;
56 -- Number of bytes output on current line
59 -- Character at current storage address
61 AIL : constant := Address_Image_Length - 4 + 2;
62 -- Number of chars in initial address + colon + space
64 Line_Len : constant Natural := AIL + 3 * 16 + 2 + 16;
65 -- Line length for entire line
67 Line_Buf : String (1 .. Line_Len);
69 Hex : constant array (0 .. 15) of Character := "0123456789ABCDEF";
71 type Char_Ptr is access all Character;
73 function To_Char_Ptr is new Ada.Unchecked_Conversion (Address, Char_Ptr);
78 -- Start of line processing
82 S : constant String := Image (Adr);
84 Line_Buf (1 .. AIL) := S (4 .. S'Length - 1) & ": ";
85 Line_Buf (AIL + 1 .. Line_Buf'Last) := (others => ' ');
86 Line_Buf (AIL + 3 * 16 + 1) := '"';
90 -- Add one character to current line
92 C := To_Char_Ptr (Adr).all;
96 Line_Buf (AIL + 3 * N + 1) := Hex (Character'Pos (C) / 16);
97 Line_Buf (AIL + 3 * N + 2) := Hex (Character'Pos (C) mod 16);
99 if C < ' ' or else C = Character'Val (16#7F#) then
103 Line_Buf (AIL + 3 * 16 + 2 + N) := C;
106 -- End of line processing
109 Line_Buf (Line_Buf'Last) := '"';
110 GNAT.IO.Put_Line (Line_Buf);
115 -- Deal with possible last partial line
118 Line_Buf (AIL + 3 * 16 + 2 + N) := '"';
119 GNAT.IO.Put_Line (Line_Buf (1 .. AIL + 3 * 16 + 2 + N));
125 end GNAT.Memory_Dump;