How to extract Dump files

How to grab Dump files

In a computer system, a Dump file is a file that records system operating status and data. In software development and system troubleshooting, grabbing Dump files can help program developers and system administrators analyze and diagnose various problems, such as program crashes, memory leaks, and system abnormalities. This article will introduce some common methods and tools to grab Dump files.

1. How to grab Dump files under Windows system

1. Use Task Manager: In Windows operating system, you can use Task Manager to grab Dump files. First, open the task manager through the shortcut key "Ctrl Shift Esc", select the process that needs to grab the Dump file in the "Applications" tab, right-click the process, and then select "Dump File" or "Generate Dump File" ", and finally select the path and file name to save.

2. Use Windows Debugging Tools: Windows Debugging Tools is a set of debugging tools officially provided by Microsoft, which includes a command line tool cdb.exe, which can be used to grab Dump files. You can use cdb.exe through the following steps:

   a. Install Windows Debugging Tools: Download and install Windows Debugging Tools from Microsoft's official website.

   b. Open the command prompt window: press the "Win R" key combination, enter "cmd", and then press the Enter key.

   d. Execute the command to grab the Dump file: enter "./cdb.exe -pn process name -g -c '.dump /mf file path file name.dmp'" in the command prompt window, Among them, "process name" is the name of the process that needs to capture the Dump file, "file path file name.dmp" is the path and file name of the Dump file, and then press the Enter key.

2. How to grab Dump files under Linux system

1. Use GDB: In Linux system, you can use GDB (GNU debugger ) to grab the Dump file. You can use GDB through the following steps:

   a. Install GDB: Install GDB through the package manager in the Linux system, for example, execute the "sudo apt-get install gdb" command in the Ubuntu system.

   b. Open the terminal window: Press the "Ctrl Alt T" key combination to open the terminal window.

   c. Run GDB: Run the "gdb binary program path" command in the terminal window to start GDB.

   d. Set the Dump file generation method: Use the command "set dump-file-format raw" in GDB to set the format of the generated Dump file.

   e. Execute the command to grab the Dump file: use the command "generate-core-file path/filename.core" in GDB to generate the Dump file, where "path/filename.core" is to save the Dump The path and file name of the file.

2. Use the AbortOnHeapCorruption tool: AbortOnHeapCorruption is a GDB-based tool that can automatically grab Dump files. AbortOnHeapCorruption can be used by following these steps:

   a. Download and compile AbortOnHeapCorruption: Download the source code from its official GitHub page and compile it according to its usage instructions.

   b. Run AbortOnHeapCorruption: Run the "./aohc binary program path" command in the terminal window to run AbortOnHeapCorruption.

   c. Check the generated Dump file: AbortOnHeapCorruption will automatically generate a Dump file in the current path.

3. Commonly used tools for analyzing Dump files

1. DebugDiag: DebugDiag is a tool officially provided by Microsoft for analyzing Dump files. It helps developers locate and resolve application crashes.
2. WinDbg: WinDbg is a tool in Windows Debugging Tools. It is a powerful debugger and analysis tool that can be used to analyze Dump files, memory leaks and other issues.
3. GDB: GDB is the GNU debugger, which is very commonly used in Linux systems and can be used to analyze Dump files under Linux systems.

Summary:
Grabbing Dump files is one of the important means to solve software development and system failures. This article introduces common methods and tools for grabbing Dump files under Windows and Linux systems. At the same time, some commonly used tools for analyzing Dump files are also introduced. By mastering these methods and tools, developers and system administrators can more easily conduct system troubleshooting and problem analysis.

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