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#!/bin/sh
onerr() {
echo -e "\x1b[1;31merror: '$action' failed\x1b[m"
exit 1
}
trap onerr ERR
name="uff"
build_mode=debug
action=help
target=x86_64
target_name="$target-$name"
target_path="target/"
rust_target_path="$target_path/$target_name/$build_mode/"
iso_path="$target_path/iso/"
obj_path="$iso_path/obj/"
src_path="src/"
asm_path="$src_path/"
link_script="$src_path/linker.ld"
grub_cfg="$src_path/grub.cfg"
print_help() {
echo "usage: $0 (options) [action]"
echo "options:"
echo " -mode=<str> set build mode (standard: debug)"
exit
}
get_rust_bin() {
case "$action" in
"test") echo "$rust_target_path/$(ls -t1 $rust_target_path | grep -P '^kernel-[a-fA-F0-9]+$' | head -n1)";;
*) echo "$rust_target_path/libkernel.a";;
esac
}
prepare_iso() {
mkdir "$target_path" &> /dev/null
mkdir "$iso_path" &> /dev/null
mkdir "$obj_path" &> /dev/null
mkdir "$iso_path/isofiles" &> /dev/null
mkdir "$iso_path/isofiles/boot" &> /dev/null
mkdir "$iso_path/isofiles/boot/grub" &> /dev/null
for f in "$asm_path"/*.asm; do
nasm -felf64 "$f" -o "$obj_path/$(basename -s .asm $f).o"
done
cp "$grub_cfg" "$iso_path/isofiles/boot/grub/grub.cfg"
}
build_iso() {
ld -n -o "$iso_path/isofiles/boot/kernel.bin" -gc-sections -T "$link_script" "$obj_path"/*.o "$(get_rust_bin)"
grub-mkrescue -d /usr/lib/grub/i386-pc -o "$iso_path/uff.iso" "$iso_path/isofiles"
}
build() {
if test ! -d "$iso_path/isofiles"; then
prepare_iso
fi
cargo xbuild
build_iso
}
build_test() {
if test ! -d "$iso_path/isofiles"; then
prepare_iso
fi
RUSTFLAGS="-Clink-arg=-r -Clink-dead-code" cargo xtest --no-run
build_iso
}
run() {
qemu-system-x86_64 -cdrom "$iso_path/uff.iso"
}
for arg in "$@"; do
case "$arg" in
-mode=*)
build_mode="$(echo $arg | sed "s/^-mode=//")";;
"run") action=run;;
"build") action=build;;
"test") action=test;;
"help") action=help;;
*)
echo "warn: ignoring unknown option '$arg'";;
esac
done
case "$action" in
"help") print_help;;
"build") build;;
"test") build_test; run;;
"run") build; run;;
esac
echo -e "\x1b[1;32mdone\x1b[m"
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