Running an ARM assembly language program in gdb Debugger

You need to open two terminal tabs to start the debugger: one for the qemu emulator and another for gdb.

In terminal 1:
[alarm@alarm ~]$ qemu-arm -L <path to arm library> -g 1234./program

In terminal 2:
[alarm@alarm ~]$ gdb ./program -ex 'target remote localhost:1234'

gdb commands:

1. layout asm
Shows assembly code view in the debugger

2. layout reg
Shows the contents of the registers

3. b <function name>
Sets a breakpoint at <function name>

4. b <line number>
Sets a breakpoint at some line number in the current file

5. c
Continue execution until the next breakpoint

6. si
Step one assembly instruction. If the instruction is a function call, step IN to the function.

7. ni
Step one assembly instruction. If the instruction is a function call, step OVER the function.

8. quit
Quit