"Debuggers are the magnifying glass, the microscope, the logic analyzer, the profiler, and the browser with which a program can be examined."Jonathan B. Rosenberg
Debuggers are an indispensable tool in the development process. In fact, during the course of the average software project, more hours are spent debugging software than in compiling code. Yet, not many programmers really know how to constructively interpret the results they get back from debuggers. And even fewer know what makes these complex suites of algorithms and data structures tick. Now in this extremely accessible guide, Jonathan B. Rosenberg demystifies debuggers for programmers and shows them how to make better use of debuggers in their next projects.
Taking a hands-on, problem-solving approach to a complex subject, Rosenberg explains how debuggers work and why programmers use them. Most importantly, he provides practical discussions of debugger algorithms and procedures for their use, accompanied by many practical examples. The author also discusses a wide variety of systems applications, from Microsoft's Win32 debug API to a large parallel architecture.
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My Win32 debugger has less than 200 lines of source code, so the assertion that debugger code is long and complex is completely false. The "concept" of debugging is a complex one, but the source code is not.
That's not to say that the book is completely useless. Some of the advice given in the book can not be found in any other resource. And without it, it probably would have taken me much longer to write my debugger. Writing a debugger is not as easy as writing any other kind of program, so the concepts covered in the book are important.
If you are interested in writing a Win32 debugger, my suggestion would be to get this book, but supplement it with an MSDN subscription (either online or on CDROM) and get the Microsoft Systems Journal CDROM with back-issues. With these three resources (and a LOT of patience) you'll be able to get your Win32 debugger up and running.
True that it side steps or do not discuss in detail issues which most debugger *writers* would want to know, I can understand why the author named the book 'How debuggers Work' instead of 'How to write debuggers' or 'Debugger writing: Principles and Techniques' etc. Still it gets you going and clear lots of necessary concepts.
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