Use gdb to step through disassembled binary

Assembly using gdb

• Start the debugger:

  gdb [executable_name]

• Display assembly code:

  layout asm

• Display registers:

  layout regs

• Set a breakpoint:

  b [function_name]

• Run the code:

  run [name]

• Reload screen:

  ctrl + l

• Move to the next instruction:

  ni (pressing ENTER repeats the previous command).

• Continue:

  c

• Display the function:

  disas [function_name]

• Print value in register in:

  hex: x/x $[register]

  decimal: x/d $[register]

  string: x/s $[register]

• Print the value in array in decimal:

  x/[size]wd $[register]