#!/bin/bash

if test "$Argc" -ne 1 {
    echo "Usage: bootgen.sh *build dir*"
    exit 1
}

setglobal BUILD = $1

# Re-locator Path
setglobal RELOCATOR = 'bootmgr/relocator'

# Build location
setglobal BOOTMGR = $(BUILD)

# Check for re-locator binary
if test ! -f $RELOCATOR/relocator.bin {

	echo "Error : Relocator Not found!"
	exit 1
} else {
	echo "Relocator found..."
}

# Check for boot manager binary
if test ! -f $BOOTMGR/bootmgr.bin {

	echo "Error : Boot Manager Not found!"
	exit 1
} else {
	echo "Boot Manager found..."
}

# echo
echo "Generating bootloader..."

# Generate an all 0 bin file
dd if=/dev/zero of=__tmp.bin ibs=1 count=256 conv=notrunc >/dev/null !2 > !1

# Generate a 0 padded version of the relocator 
dd if=$RELOCATOR/relocator.bin of=__tmp.bin ibs=1 conv=notrunc >/dev/null !2 > !1

# Concatenate the re-locator and the boot-manager
cat __tmp.bin $BOOTMGR/bootmgr.bin > $BOOTMGR/bootloader.bin

# Remove the tmp files
rm -f __tmp.bin

# Remove bootmgr.bin
rm -f $BOOTMGR/bootmgr.bin