Книга: Microsoft Windows Embedded CE 6.0 Exam Preparation Kit
Lesson Summary
Lesson Summary
Debugging an operating system and applications requires familiarity with both the CE system and the debugging tools included in Platform Builder and CETK. The most important debugging tools are the system debugger, debug message feature, and CE target control shell. The system debugger enables you to set breakpoints and step through kernel and application code, while the debug message feature provides the option to analyze system components and applications without interrupting code execution. A variety of debug and retail macros are available to output debugging information from target devices with or without a display component. Because systems and applications can potentially generate a large number of debug messages, you should use debug zones to control the output of debugging information. The key advantage of debug zones is that you can change the debug information verbosity dynamically without having to rebuild the run-time image. The target control shell, on the other hand, enables you to send commands to the target device, such as a break command followed by a !diagnose all command to break into the debugger and perform a CEDebugX check on the overall system health, including memory leaks, exceptions, and deadlocks.
Apart from these core debugging tools, you can use typical CE configuration and troubleshooting tools, such as the Application Verifier tool, to identify potential application compatibility and stability issues, and Remote Kernel Tracker to analyze processes, threads, and system performance. Remote Kernel Tracker relies on the CeLog event-tracking system, which typically maintains logged data in memory on the target device; you can also flush this data to a file by using the CeLogFlush tool. If symbol files are available for the modules that you want to analyze, you can use the Readlog tool to replace the thread start addresses with the actual function names and generate new CeLog data files for more convenient offline analysis in Remote Kernel Tracker.
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