How Can I Debug Core Files Generated on Different Linux Distributions?

Debugging Core Files with Mixed Distributions

When encountering core files generated on a customer's Linux system that differs from the development environment, the stack trace may not be meaningful due to potential mismatches in library addresses.

Resolving Stack Trace Ambiguity

To address this issue, obtain the shared libraries used by the executable from the customer's system. Compress them into a tarball and extract them into a temporary directory on the development system. In GDB, set the solib-absolute-prefix to point to this directory. This will enable GDB to load the correct library versions and produce an accurate stack trace.

Best Practices for Debugging

To simplify debugging, create a debug binary with -g -O2 optimization flags. Use strip -g to remove debug symbols from the final binary distributed to customers. When a core file is received, use the debug binary with the full symbolic information to facilitate debugging.

Alternative Debugging Resources for Linux and Solaris

• Linux Debug Tools: LLDB, valgrind, gdbserver, ptrace (https://www.drdobbs.com/debug-your-linux-system-with-the-swiss-army-knife/232400979)
• Solaris Debugging with dtrace, kdump, dtrace, adb (https://sysadmin-docs.oracle.com/html/E23191_02/bkabaacg.html#scrollcap16782)

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