![]() Tracking down speed problems in riched20.Fixing a tiny problem in the Common Controls hotkey control.Debugging Wild Metal Country - finding why a game crashes (due to DirectPlay) and how to confirm the bug.Introduces backtracing using winedbg and different types of result codes. Debugging PE Explorer - fixing a simple hang in the file open dialog (yet another shell bug).Introduces debug tracing, the shell DLLs and SEH/exception tracing. Debugging Reason 3 - a simple "Unhandled exception" error message.They're meant to show you how to debug problems when apps don't work. These tutorials are aimed at people who know C and programming, but are just starting out with Wine development. Winedbg is a Winelib application making use of these APIs ( KERNE元2.DLL debugging API and class="libraryfile"DBGHELP.DLL) to allow debugging both any Wine or Winelib application as well as Wine itself (kernel and all DLLs). ![]() Another part of the debugging APIs resides in DBGHELP.DLL (and its ancestor IMAGEHLP.DLL) and lets a debugger look into symbols and types from any module (if the module has been compiled with the proper options). To control means stopping/resuming execution, enabling/disabling single stepping, setting breakpoints, reading/writing debuggee memory. The first part of the debugging APIs (in KERNE元2.DLL) allows a W-process, called the debugger, to control the execution of another W-process, the debuggee. Wine implements most of the Windows debugging API. the Wine integrated debugger, dubbed winedbg.When talking of debugging in Wine, there are at least two levels to think of: The handles can be defined as local (the values is only valid in a process), or system wide (the same handle can be used by any W-process). A same process can have several different handles on the same kernel object. They must not be confused with process or thread handles which, as any handle, are indirections to system objects (in this case processes or threads). Wpid and tid are defined (Windows) system wide. It must be clear that upid and wpid are different and shall not be used instead of the other. the Unix process id ( upid in the following)Įach Windows process has also a Windows process id ( wpid in the following).All U-processes of a same W-process share the same address space.Įach Unix process can be identified by two values: Each W-thread is mapped to one and only one U-process. W-thread means a thread in Windows terminologyĪ W-process is made of one or several W-threads.U-process means a process in Unix terminology.W-process means a process in Windows terminology.It has to be clear that there are two different beasts: processes/threads from the Unix point of view and processes/threads from a Windows point of view.Įach Windows thread is implemented as a Unix thread, meaning that all threads of a same Windows process share the same (unix) address space. The remainder of this page goes into details about the use of Wine's internal debugger, winedbg.ġ.2 Processes and threads: in underlying OS and in Windowsīefore going into the depths of debugging in Wine, here's a small overview of process and thread handling in Wine. You can read more about how to structure such messages in the developers guide to debug logging. Most Wine developers prefer to use Wine's debug channels to find problems. Wine provides a variety of methods for debugging problems. 8.5 Main differences between winedbg and regular Unix debuggersġ Introduction 1.1 Typical debugging patterns.7.5 Directory & source file manipulation.3.3 Program reports an error with a message box.1.2 Processes and threads: in underlying OS and in Windows.
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