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|
#!/bin/sh
set -e
: ${TMPDIR:=$XDG_RUNTIME_DIR}
: ${TMPDIR:=/tmp}
if [ "$1" == "-k" ]; then
kernel="$(realpath "$2")"
shift 2
fi
if [ ! -d "$1" ]; then
echo "Usage:"
echo " $0 <kernel build root> [kernel commandline] [initramfs]"
exit 1
fi
kernel_base="$(realpath "$1")"
args="$2"
initramfs=""
shift 2
if [ "$1" == "--" ]; then
shift
elif [ -n "$1" ]; then
initramfs="$(realpath "$1")"
shift
fi
if [ -z "$kernel" ]; then
kernel="$kernel_base"/arch/arm64/boot/Image.gz
fi
base="$(dirname "$0")"
echo "Creating m1n1+kernel image"
cp "$base"/../../build/m1n1.bin "$TMPDIR/m1n1-linux.bin"
if [ -n "$args" ]; then
echo "chosen.bootargs=$args" >>"$TMPDIR/m1n1-linux.bin"
fi
cat "$kernel_base"/arch/arm64/boot/dts/apple/*.dtb >>"$TMPDIR/m1n1-linux.bin"
if [[ "$kernel" == *.gz ]]; then
cat "$kernel" >>"$TMPDIR/m1n1-linux.bin"
else
gzip -c <"$kernel" >>"$TMPDIR/m1n1-linux.bin"
fi
if [ -n "$initramfs" ]; then
initramfs_size=$(stat --printf='%s' "$initramfs")
python3 - << EOF >>"$TMPDIR/m1n1-linux.bin"
import os, sys
magic = b'm1n1_initramfs'
size = int(${initramfs_size}).to_bytes(4, byteorder='little')
os.write(sys.stdout.fileno(), magic + size)
EOF
cat "$initramfs" >>"$TMPDIR/m1n1-linux.bin"
fi
echo "Chainloading to updated m1n1..."
python3 "$base"/chainload.py -r "$base"/../../build/m1n1.bin
echo "Starting guest..."
exec python3 "$base"/run_guest.py \
-c "load_system_map('$kernel_base/System.map')" "$@" \
-r "$TMPDIR/m1n1-linux.bin"
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