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|
.DEFAULT_GOAL := build
.SILENT: cross build test
DIR := $(shell pwd)/cross
export PREFIX := $(DIR)/opt
export TARGET := i686-elf
export PATH := $(PREFIX)/bin:$(PATH)
clean:
@-rm -rf ./build ./iso
@echo Cleaned build directory
build: clean
set -e; \
mkdir ./build/; \
# Assemble ASM files
nasm -f elf ./src/kernel/boot.asm -o ./build/boot.o || exit; \
# Make all C files
find ./src/kernel/ -name \*.c >./build/tmp; \
while read -r line; do \
stripped=$$(echo "$${line}" | sed -r 's/\//_/g'); \
stripped=$${stripped#??????}; \
stripped=$${stripped%%?}o; \
i686-elf-gcc -c ./"$${line}" -o ./build/"$${stripped}" -std=gnu99 -ffreestanding -O2 -Wall -Wextra -Wno-unused-parameter || exit; \
done <./build/tmp; \
rm ./build/tmp; \
i686-elf-gcc -T ./src/kernel/linker.ld -o ./build/melvix.bin -ffreestanding -O2 -nostdlib ./build/*.o -lgcc || exit; \
# Testing
if grub-file --is-x86-multiboot ./build/melvix.bin; then \
echo Multiboot confirmed; \
else \
echo Melvix has errors and won\'t be able to multi boot!; \
exit; \
fi; \
# Create ISO
mkdir -p ./iso/boot/grub; \
cp ./build/melvix.bin ./iso/boot/; \
cp ./src/kernel/grub.cfg ./iso/boot/grub/; \
grub-mkrescue -o ./build/melvix.iso ./iso/;
cross:
set -e; \
[ -d "./cross/" ] && echo "Please remove cross/ and try again" && exit; \
mkdir cross || exit; \
cd cross || exit; \
DIR=$$(pwd); \
mkdir "$${DIR}/src" && cd "$${DIR}/src" || exit; \
echo "Downloading..."; \
curl -sSL "https://ftp.gnu.org/gnu/binutils/binutils-2.32.tar.xz" | tar xJ; \
curl -sSL "https://ftp.gnu.org/gnu/gcc/gcc-9.2.0/gcc-9.2.0.tar.xz" | tar xJ; \
mkdir -p "$${DIR}/opt/bin"; \
export PREFIX="$${DIR}/opt"; \
export TARGET=i686-elf; \
export PATH="$$PREFIX/bin:$$PATH"; \
mkdir "$${DIR}/src/build-binutils" && cd "$${DIR}/src/build-binutils" || exit; \
../binutils-2.32/configure --target="$$TARGET" --prefix="$$PREFIX" --with-sysroot --disable-nls --disable-werror; \
make; \
make install; \
mkdir "$${DIR}/src/build-gcc" && cd "$${DIR}/src/build-gcc" || exit; \
../gcc-9.2.0/configure --target="$$TARGET" --prefix="$$PREFIX" --disable-nls --enable-languages=c,c++ --without-headers; \
make all-gcc; \
make all-target-libgcc; \
make install-gcc; \
make install-target-libgcc; \
cd "$${DIR}/.." || exit;
test: build debug
debug:
rm -f qemu.log
qemu-system-x86_64 -soundhw pcspk -M accel=kvm:tcg -vga vmware -serial stdio -d cpu_reset -D qemu.log -m 512M -cdrom ./build/melvix.iso
.PHONY: build clean cross test debug
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