How to view stack information in Linux?

You can view stack information in Linux systems by using the following methods:

1. Using the gdb debugger: you can debug your program and view stack information by using gdb commands. First, compile your program with the “-g” option to retain debugging information. Then, enter the gdb debugging environment by typing “gdb ” in the command line. In the gdb environment, you can use the “bt” command to view the current stack information.
2. The pstack command is a tool in the Linux system that can be used to view the stack information of a process. By using the command “pstack “, you can view the stack information of a specific process.
3. By using the backtrace function, you can retrieve the stack information of the current thread in the program. Simply include the header file “execinfo.h” and call the backtrace function in your code. The stack information returned can be printed or saved to a file for future analysis.

It is important to note that all the methods mentioned above are used to view stack information during program execution, so it is necessary to ensure that the program is running. Additionally, these methods can only view the stack information of the current thread, so if you need to check the stack information of other threads, you will need to use the appropriate thread debugging tools or techniques in the program.