easy-versatilepb-run

#!/usr/bin/env bash

if [ "$1" = "--help" ] || [ "$1" = "-h" ] || [ "$#" -lt 1 ]; then
    echo './easy-versatilepb-run INPUT'
    echo '    -gdb )'
    echo '        QEMU will listen for an incoming connection from gdb'
    echo '        on TCP port 1234. Execution will not start until told'
    echo '        to do so by GDB.'
    echo '    -h, --help, * )'
    echo '        Print usage information.'
    echo '        Note: If you do not halt execution (with SVC 2), QEMU will not quit as'
    echo '        the machine is still technically running, even if it has run out of'
    echo '        instructions. In the terminal, press CTRL+A, then type "x", to quit QEMU.'
    exit
fi

input_1="$1"
input_2="$2"
input="$input_1"
gdb="-s -S"

if [ "$#" -lt 1 ]; then
    echo 'Please supply input ARM binary file.'
    exit 1
fi

if [ "$input_1" != '-gdb' ] && [ -z "$input_2" ]; then
    input="$input_1"
    gdb=''
elif [ "$input_1" = '-gdb' ] && [ -n "$input_2" ]; then
    input="$input_2"
elif [ "$input_2" = '-gdb' ]; then
    input="$input_1"
elif [ "$input_1" = '-gdb' ] && [ -z "$input_2" ]; then
    echo 'Please supply input ARM binary file.' 1>&2
    exit 1
fi

qemu-system-arm -M versatilepb $gdb -m 128M -nographic -no-reboot -audiodev none,id=none -kernel "$input"