Gdb

Display

display will evaluate and print an expression after each command run.

• Use display/i $pc to get the current instruction address and decode
  • 2i will give you the current and next instruction

Control flow

• Use finish to move to the end of a stack frame
• Use step and stepi to move forward, descending into new stack frames
• Use next and nexti to move forward, skipping over new stack frames
• Export LD_BIND_NOW=1 to force early symbol binding. This eliminates annoying dl code when resolving the .plt section
• Use set follow-fork-mode child to follow the child of fork/vfork

Stacktraces

• Stacktrace of all threads -- thread apply all bt