gdb core dump analysis useful commands

Let’s assume you have a program that just crashed and you have a core dump. You can enable core dumps by using the ulimit -c unlimited command.

If you want to analyze what happened, here are some steps you can follow:

//This will switch the disassembly listing to intel format.

(gdb) set disassembly-flavor intel

//To view the stack trace and see where the program crashed.

(gdb) bt full

//To disassemble the instructions around the address where the crash happened.

(gdb) disas 0x<addr>

//To view register values

(gdb) i r


Enjoy 🙂