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------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- G N A T . M E M O R Y _ D U M P --
-- --
-- B o d y --
-- --
-- Copyright (C) 2003 Ada Core Technologies, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with System; use System;
with System.Storage_Elements; use System.Storage_Elements;
with GNAT.IO; use GNAT.IO;
with GNAT.Debug_Utilities; use GNAT.Debug_Utilities;
with Unchecked_Conversion;
package body GNAT.Memory_Dump is
----------
-- Dump --
----------
procedure Dump (Addr : System.Address; Count : Natural) is
Ctr : Natural := Count;
-- Count of bytes left to output
Adr : Address := Addr;
-- Current address
N : Natural := 0;
-- Number of bytes output on current line
C : Character;
-- Character at current storage address
AIL : constant := Address_Image_Length - 4 + 2;
-- Number of chars in initial address + colon + space
Line_Len : constant Natural := AIL + 3 * 16 + 2 + 16;
-- Line length for entire line
Line_Buf : String (1 .. Line_Len);
Hex : constant array (0 .. 15) of Character := "0123456789ABCDEF";
type Char_Ptr is access all Character;
function To_Char_Ptr is new Unchecked_Conversion (Address, Char_Ptr);
begin
while Ctr /= 0 loop
-- Start of line processing
if N = 0 then
declare
S : constant String := Image (Adr);
begin
Line_Buf (1 .. AIL) := S (4 .. S'Length - 1) & ": ";
Line_Buf (AIL + 1 .. Line_Buf'Last) := (others => ' ');
Line_Buf (AIL + 3 * 16 + 1) := '"';
end;
end if;
-- Add one character to current line
C := To_Char_Ptr (Adr).all;
Adr := Adr + 1;
Ctr := Ctr - 1;
Line_Buf (AIL + 3 * N + 1) := Hex (Character'Pos (C) / 16);
Line_Buf (AIL + 3 * N + 2) := Hex (Character'Pos (C) mod 16);
if C < ' ' or else C = Character'Val (16#7F#) then
C := '?';
end if;
Line_Buf (AIL + 3 * 16 + 2 + N) := C;
N := N + 1;
-- End of line processing
if N = 16 then
Line_Buf (Line_Buf'Last) := '"';
GNAT.IO.Put_Line (Line_Buf);
N := 0;
end if;
end loop;
-- Deal with possible last partial line
if N /= 0 then
Line_Buf (AIL + 3 * 16 + 2 + N) := '"';
GNAT.IO.Put_Line (Line_Buf (1 .. AIL + 3 * 16 + 2 + N));
end if;
return;
end Dump;
end GNAT.Memory_Dump;
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