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|
#!/usr/bin/env sh
set -e
cd "$(dirname "$0")"
MAKE=make
NPROC=nproc
SUDO=sudo
TAGS=ctags
if [ "$(uname -s)" = "OpenBSD" ]; then
NPROC="sysctl -n hw.ncpuonline"
SUDO="doas"
TAGS="ectags"
export MAKE=gmake
export CC="egcc"
export CXX="eg++"
export LDFLAGS=-Wl,-z,notext
fi
mode="${1}"
no_ask="${2}"
make_cross() {
if [ ! -d "./cross/" ]; then
if [ "$no_ask" != "-y" ]; then
echo -n "Do you want to compile a cross compiler (this can take around 20 minutes)? [yn] "
read -r answer
if ! [ "$answer" != "${answer#[Yy]}" ]; then
echo "The compilation of melvix requires a cross compiler!"
exit 1
fi
fi
# Create directory
mkdir -p cross
cd cross
DIR=$(pwd)
# Get sources
mkdir "${DIR}/src" && cd "${DIR}/src"
echo "Downloading..."
curl "https://ftp.gnu.org/gnu/binutils/binutils-2.33.1.tar.gz" >binutils.tar.gz
tar xzf binutils.tar.gz
curl "https://ftp.gnu.org/gnu/gcc/gcc-9.2.0/gcc-9.2.0.tar.gz" >gcc.tar.gz
tar xzf gcc.tar.gz
# Prepare compiling
mkdir -p "${DIR}/opt/bin"
export PREFIX="${DIR}/opt"
export TARGET=i686-elf
export PATH="$PREFIX/bin:$PATH"
if [ "$(uname -s)" = "OpenBSD" ]; then
export with_gmp=/usr/local
sed -i 's/-no-pie/-nopie/g' "${DIR}/src/gcc-9.2.0/gcc/configure"
fi
# Compile binutils
mkdir "${DIR}/src/build-binutils" && cd "${DIR}/src/build-binutils"
../binutils-2.33.1/configure --target="$TARGET" --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
$MAKE -j $($NPROC)
$MAKE install
# Compile GCC
mkdir "${DIR}/src/build-gcc" && cd "${DIR}/src/build-gcc"
../gcc-9.2.0/configure --target="$TARGET" --prefix="$PREFIX" --disable-nls --enable-languages=c --without-headers
$MAKE -j $($NPROC) all-gcc all-target-libgcc
$MAKE install-gcc install-target-libgcc
# Fix things
if [ "$(uname -s)" = "OpenBSD" ]; then
cd "${DIR}/opt/libexec/gcc/i686-elf/9.2.0/" && ln -sf liblto_plugin.so.0.0 liblto_plugin.so
fi
cd "${DIR}/.."
fi
}
make_build() {
mkdir -p build/
# Build
printf "\nBuilding...\n"
$MAKE -j $($NPROC)
# Create disk image
dd if=/dev/zero of=build/disk.img bs=1k count=32k status=none
if [ "$(uname -s)" = "OpenBSD" ]; then
VND=$($SUDO vnconfig build/disk.img)
(
echo "e 0"
echo 83
echo n
echo 0
echo "*"
echo "quit"
) | $SUDO fdisk -e $VND >/dev/null
$SUDO mkfs.ext2 -F /dev/${VND}i >/dev/null
$SUDO dd if=build/boot.bin of=/dev/${VND}i conv=notrunc status=none
else
$SUDO mke2fs -b 1024 -q build/disk.img
dd if=build/boot.bin of=build/disk.img conv=notrunc status=none
fi
# Mount disk and copy files
mkdir -p mnt/
if [ "$(uname -s)" = "OpenBSD" ]; then
$SUDO mount -t ext2fs /dev/${VND}i mnt/
else
$SUDO mount build/disk.img mnt/
fi
$SUDO cp -r build/load.bin mnt/load
$SUDO cp -r build/example mnt/kernel
$SUDO umount mnt/
rm -rf mnt/
if [ "$(uname -s)" = "OpenBSD" ]; then
$SUDO vnconfig -u $VND
fi
}
make_example() {
qemu-system-i386 -d guest_errors -cpu max -serial stdio -m 256M -vga std -drive file=build/disk.img,format=raw,index=1,media=disk
}
if [ "${mode}" = "cross" ]; then
make_cross
elif [ "${mode}" = "build" ]; then
make_cross
$MAKE clean
make_build
elif [ "${mode}" = "example" ]; then
make_cross
$MAKE clean
make_build
make_example
fi
|
