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113 lines
3.3 KiB
ObjectPascal
113 lines
3.3 KiB
ObjectPascal
{ $Id$ }
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{
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---------------------------------------------------------------------------
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dbgutil.pp - Native freepascal debugger - Utilities
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---------------------------------------------------------------------------
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This unit contains utility functions
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---------------------------------------------------------------------------
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@created(Mon Apr 10th WET 2006)
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@lastmod($Date$)
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@author(Marc Weustink <marc@@dommelstein.nl>)
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***************************************************************************
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* *
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* This source is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This code is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* General Public License for more details. *
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* *
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* A copy of the GNU General Public License is available on the World *
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* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
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* obtain it by writing to the Free Software Foundation, *
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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* *
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***************************************************************************
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}
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unit DbgUtil;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils;
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type
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THexValueFormatFlag = (hvfSigned, hvfPrefixPositive, hvfIncludeHexchar);
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THexValueFormatFlags = set of THexValueFormatFlag;
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function AlignPtr(Src: Pointer; Alignment: Byte): Pointer;
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function HexValue(const AValue; ASize: Byte; AFlags: THexValueFormatFlags): String;
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procedure Log(const AText: String; const AParams: array of const); overload;
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procedure Log(const AText: String); overload;
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implementation
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function AlignPtr(Src: Pointer; Alignment: Byte): Pointer;
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begin
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Result := Pointer(((PtrUInt(Src) + Alignment - 1) and not PtrUInt(Alignment - 1)));
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end;
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function HexValue(const AValue; ASize: Byte; AFlags: THexValueFormatFlags): String;
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var
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i: Int64;
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p: PByte;
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begin
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if ASize > 8
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then begin
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Result := 'HexValue: size to large';
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Exit;
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end;
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if ASize = 0
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then begin
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Result := '';
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Exit;
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end;
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p := @AValue;
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if p[ASize - 1] < $80
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then Exclude(AFlags, hvfSigned);
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if hvfSigned in AFlags
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then i := -1
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else i := 0;
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Move(AValue, i, ASize);
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if hvfSigned in AFlags
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then begin
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i := not i + 1;
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Result := '-';
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end
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else begin
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if hvfPrefixPositive in AFlags
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then Result := '+';
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end;
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if hvfIncludeHexchar in AFlags
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then Result := Result + '$';
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Result := Result + HexStr(i, ASize * 2);
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end;
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procedure Log(const AText: String; const AParams: array of const); overload;
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begin
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WriteLN(Format(AText, AParams));
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end;
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procedure Log(const AText: String); overload;
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begin
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WriteLN(AText);
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end;
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end.
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