MAKEOBJDIRPREFIX=/home/hitmoon/fb16 \
MK_TOOLCHAIN=no \
MK_WERROR=no \
MK_BOOT=yes \
TARGET=loongarch TARGET_ARCH=loongarch64 KERNCONF=QEMU make kernel-toolchain NOCLEAN=yes -j10

MAKEOBJDIRPREFIX=/home/hitmoon/fb16 \
MK_TOOLCHAIN=no \
MK_WERROR=no \
MK_BOOT=yes \
TARGET=loongarch TARGET_ARCH=loongarch64 KERNCONF=QEMU make buildkernel -j10

MAKEOBJDIRPREFIX=/home/hitmoon/fb16 \
MK_TOOLCHAIN=no \
MK_WERROR=no \
MK_BOOT=yes \
MK_RESCUE=no \
TARGET=loongarch TARGET_ARCH=loongarch64 make  buildworld -j10

TARGET=loongarch
TARGET_ARCH=loongarch64
SRCTOP=/home/hitmoon/fb16_loongarch
OBJTOP=/home/hitmoon/fb16/home/hitmoon/fb16_loongarch/loongarch.loongarch64
STAGE=/home/hitmoon/fb16-stage
IMG=/home/hitmoon/loongarch64.img
MAKEOBJDIRPREFIX=/home/hitmoon/fb16

# --- Step 1: installworld + installkernel into staging dir ---
echo "==> Installing world into ${STAGE} ..."

# Clean staging dir
if [ -d "${STAGE}" ]; then
    chflags -R noschg "${STAGE}" 2>/dev/null || true
    rm -rf "${STAGE}"
fi
mkdir -p "${STAGE}"

cd ${SRCTOP}

MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX} \
    MK_TOOLCHAIN=no \
    MK_WERROR=no \
    MK_BOOT=yes \
    MK_RESCUE=no \
    TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} \
    DESTDIR=${STAGE} \
    NO_ROOT=yes \
    make installworld distribution

echo "==> Installing kernel ..."
MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX} \
    MK_TOOLCHAIN=no \
    MK_WERROR=no \
    MK_BOOT=yes \
    MK_RESCUE=no \
    TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} \
    DESTDIR=${STAGE} \
    KERNCONF=QEMU \
    NO_ROOT=yes \
    make installkernel

# --- Step 1.5: site customization (rc.conf, sshd root login, root password) ---
echo "==> Writing /etc/rc.conf ..."
cat > ${STAGE}/etc/rc.conf <<'EOF'
hostname="loong"
ifconfig_vtnet0="DHCP"
sshd_enable="YES"
EOF

echo "==> Enabling root login in /etc/ssh/sshd_config ..."
# The stock sshd_config has "#PermitRootLogin ..." commented out; append an
# uncommented directive (sshd uses the first uncommented occurrence).
echo "PermitRootLogin yes" >> ${STAGE}/etc/ssh/sshd_config

echo "==> Setting root password ..."
# SHA-512 crypt hash of "freebsd" (openssl passwd -6 -salt loongsalt freebsd).
ROOT_HASH='$6$loongsalt$8pil6bJ4atMUDICBnyn5Txgtjpa9SbOYMGY5fU8fROzCXLZ69.mYdRXx7bWuPx4/bH2/u4Nc0yJHWMrWW21v8.'
sed -i '' "s|^root:[^:]*:|root:${ROOT_HASH}:|" ${STAGE}/etc/master.passwd
# -d sets the output directory for pwd.db/spwd.db (default /etc); use the
# staging /etc so the distribution's locked-root databases are overwritten.
pwd_mkdb -d ${STAGE}/etc ${STAGE}/etc/master.passwd

# --- Step 1.6: /boot/loader.conf ---
echo "==> Writing /boot/loader.conf ..."
cat > ${STAGE}/boot/loader.conf <<'EOF'
#kern.maxcpus=1
#vm.memguard.frequency="0"
debug.vmmap_check=2
autoboot_delay="5"
EOF

cat > ${STAGE}/root/t.sh << EOF
kyua test -k /usr/tests/Kyuafile
EOF

# --- Step 2: Create EFI partition contents ---
echo "==> Preparing EFI partition ..."

# Find the EFI loader
EFI_LOADER=$(find ${OBJTOP}/stand/efi -name loader_lua.efi -type f 2>/dev/null | head -1)
if [ -z "${EFI_LOADER}" ]; then
    echo "WARNING: EFI loader not found, trying alternative locations ..."
    EFI_LOADER=$(find ${OBJTOP} -path '*/efi/*loader*.efi' -type f 2>/dev/null | head -1)
fi
if [ -z "${EFI_LOADER}" ]; then
    echo "ERROR: Cannot find EFI loader. Build stand/ first."
    echo "  Run: cd ${SRCTOP} && ./bl2-qemu.sh"
    exit 1
fi
echo "    EFI loader: ${EFI_LOADER}"

ESP_DIR=/tmp/esp.$$
rm -rf ${ESP_DIR}
mkdir -p ${ESP_DIR}/EFI/BOOT
cp ${EFI_LOADER} ${ESP_DIR}/EFI/BOOT/BOOTLOONGARCH64.EFI

# --- Step 3: Create filesystem images ---
echo "==> Creating UFS root filesystem image ..."

# Build the rootfs from METALOG (manifest mode): ownership comes from
# the manifest (root:wheel), not the on-disk staging tree, which is
# owned by the build user under -DNO_ROOT.

# Record the files created by this script (install(1) does not know
# about them).  -D below tolerates duplicates.
for f in ./etc/rc.conf ./boot/loader.conf ./root/t.sh ; do
    printf '%s type=file uname=root gname=wheel mode=0644\n' ${f} >> ${STAGE}/METALOG
done
# Sort: makefs needs directory entries before their contents, else
# directories get mode 000.
env -i LC_COLLATE=C sort -u ${STAGE}/METALOG > ${STAGE}/METALOG.sorted
mv ${STAGE}/METALOG.sorted ${STAGE}/METALOG

ROOTFS=/tmp/rootfs.$$.img
(cd ${STAGE} && makefs -B little -s 4g -D -N ./etc -o label=root ${ROOTFS} ./METALOG)

echo "==> Creating ESP (FAT) image ..."
ESPFS=/tmp/esp.$$.img
makefs -t msdos -s 64m ${ESPFS} ${ESP_DIR}

# --- Step 4: Assemble disk image ---
echo "==> Assembling disk image ..."
mkimg -s gpt \
    -p efi:=${ESPFS} \
    -p freebsd-ufs:=${ROOTFS} \
    -o ${IMG}

# Cleanup
rm -rf ${ESP_DIR} ${ROOTFS} ${ESPFS}

echo ""
echo "============================================================"
echo "==> Done: ${IMG}"
ls -lh ${IMG}

qemu-system-loongarch64 -M virt -smp 8 -m 8G \
-cpu la464,ptw=on \
-drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/loongarch64/QEMU_EFI.fd \
-drive if=pflash,format=raw,file=/usr/share/edk2/loongarch64/QEMU_VARS.fd \
-drive if=none,file=loongarch64.img,format=raw,id=rootfs \
-device virtio-blk-pci,drive=rootfs,disable-legacy=on,disable-modern=off,ioeventfd=off \
-device virtio-rng-pci \
-netdev user,id=net0,hostfwd=tcp::5588-:22 \
-device virtio-net-pci,netdev=net0 \
-nographic \
-serial stdio \
-monitor telnet::4444,server,nowait \
-qmp unix:/tmp/qmp.sock,server,nowait $@