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    <p>For <a href="http://blog.synopse.info/post/2011/04/14/Enhanced-logging-in-SynCommons" rel="noreferrer">our logging and exception tracing classes</a>, we made a .map parser and reader.</p> <p>A .map can be parsed into a binary compressed version (.mab proprietary format), which is much smaller than the original .map. For instance, a 900 KB .map file is compressed into a 70 KB .mab file - this is a much higher compression than zip.</p> <p>This .mab content can be appended to the .exe, without any difference at execution, or for the end-user.</p> <p>Then you can use our logging classes, or directly the .map/.mab reader class, <code>TSynMapFile</code>.</p> <p>You have the following methods at hand:</p> <pre><code> /// retrieve a .map file content, to be used e.g. with TSynLog to provide // additional debugging information // - original .map content can be saved as .mab file in a more optimized format TSynMapFile = class public /// get the available debugging information // - will first search for a .map file in the .exe directory: if found, // will be read to retrieve all necessary debugging information - a .mab // file will be also created in the same directory (if MabCreate is TRUE) // - if .map is not not available, will search for the .mab file in the // .exe directory // - if no .mab is available, will search for a .mab appended to the exe // - if nothing is available, will log as hexadecimal pointers, without // debugging information // - if aExeName is not specified, will use the current process executable constructor Create(const aExeName: TFileName=''; MabCreate: boolean=true); /// save all debugging information in the .mab custom binary format // - if no file name is specified, it will be saved as ExeName.mab // - this file content can be appended to the executable via SaveToExe method // - this function returns the created file name function SaveToFile(const aFileName: TFileName=''): TFileName; /// save all debugging informat in our custom binary format procedure SaveToStream(aStream: TStream); /// append all debugging information to an executable // - the executable name must be specified, because it's impossible to // write to the executable of a running process procedure SaveToExe(const aExeName: TFileName); /// add some debugging information according to the specified memory address // - will create a global TSynMapFile instance for the current process, if // necessary // - if no debugging information is available (.map or .mab), will write // the address as hexadecimal class procedure Log(W: TTextWriter; Addr: PtrUInt); /// retrieve a symbol according to an absolute code address function FindSymbol(aAddr: cardinal): integer; /// retrieve an unit and source line, according to an absolute code address function FindUnit(aAddr: cardinal; out LineNumber: integer): integer; /// return the symbol location according to the supplied absolute address // - i.e. unit name, symbol name and line number (if any), as plain text // - returns '' if no match found function FindLocation(aAddr: Cardinal): RawUTF8; /// all symbols associated to the executable property Symbols: TSynMapSymbolDynArray read fSymbol; /// all units, including line numbers, associated to the executable property Units: TSynMapUnitDynArray read fUnit; published /// the associated file name property FileName: TFileName read fMapFile; /// equals true if a .map or .mab debugging information has been loaded property HasDebugInfo: boolean read fHasDebugInfo; end; </code></pre> <p>Thanks to this class, in just one unit, you'll have all the source code line of any location.</p> <p>Open source, and working with Delphi 5 up to XE (note that the .map format changed a little bit from old to newer versions - our class try to handle it).</p>
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    1. USArnaud Bouchez
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