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#!/bin/sh
onerr() {
echo -e "\x1b[1;31merror: '$action' failed\x1b[m"
exit 1
}
trap onerr ERR
name="uff"
build_mode=debug
action=help
target=x86_64
test_mode=false
serial_mode=false
function define_vars() {
target_name="$target-$name"
target_path="target/"
rust_target_path="$target_path/$target_name/$build_mode/"
kernel_libary="$rust_target_path/libkernel.a"
iso_path="$target_path/iso/"
obj_path="$iso_path/obj/"
src_path="src/"
asm_path="$src_path/asm/"
link_script="$src_path/linker.ld"
grub_cfg="$src_path/grub.cfg"
}
define_vars
print_help() {
echo "usage: $0 (options) [Path]"
echo " build and lauch the iso in qemu"
echo
echo "options:"
echo " -name=<str> set application name (standard: $name)"
echo " -mode=<str> set build mode (standard: $build_mode)"
echo " -target=<str> set target (standard: $target)"
echo " -test enable test mode (standard: disabled)"
echo " -serial enable serial mode (standard: disabled)"
echo " -help show this help message"
exit
}
get_rust_bin() {
#if $test_mode; then
# echo "$rust_target_path/$(ls -t1 $rust_target_path | grep -P '^kernel-[a-fA-F0-9]+$' | head -n1)"
#else
# echo "$rust_target_path/libkernel.a"
#fi
echo "$kernel_libary"
}
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" "$iso_path/isofiles/boot/grub/grub.cfg"
}
build_iso() {
ld -n -s -o "$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/$name.iso" "$iso_path/isofiles" &> /dev/null
echo "$kernel_libary"
}
build() {
if test ! -d "$iso_path/isofiles"; then
prepare_iso
fi
build_iso
}
run() {
case "$target" in
"x86_64")
qemu="qemu-system-x86_64 -cdrom $iso_path/$name.iso -cpu kvm64,+apic"
if $test_mode; then
qemu="$qemu -device isa-debug-exit,iobase=0xf4,iosize=0x04 -serial stdio -no-reboot "
fi
if $serial_mode; then
qemu="$qemu -display none"
fi
$qemu
case "$?" in
33) exit 0;;
35) exit 1;;
*)
echo "qemu exited unexpectedly $?";
exit 1;;
esac;;
*)
echo "error: no laucher defined for target '$target'";;
esac
}
for arg in "$@"; do
case "$arg" in
-mode=*)
build_mode="$(echo $arg | sed "s/^-mode=//")"; define_vars;;
-name=*)
name="$(echo $arg | sed "s/^-name=//")"; define_vars;;
-target=*)
target="$(echo $arg | sed "s/^-target=//")"; define_vars;;
-test)
test_mode=true; define_vars;;
-serial)
serial_mode=true; define_vars;;
-help)
print_help;;
*)
# echo "warn: ignoring unknown option '$arg'"
kernel_libary=$arg;;
esac
done
build
run
echo -e "\x1b[1;32mdone\x1b[m"
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