39 lines
942 B
Makefile
39 lines
942 B
Makefile
CC = i386-elf-gcc
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LD = i386-elf-ld
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CFLAGS = -m32 -ffreestanding -fno-builtin -Wall -Wextra -Wshadow -std=c23
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LDFLAGS =
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SRC_C := src/kernel.c src/string.c src/vga.c
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SRC_ASM := src/boot.asm
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OBJ_C := $(SRC_C:src/%.c=.build/%.o)
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OBJ_ASM := $(SRC_ASM:src/%.asm=.build/%.o)
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OBJS := $(OBJ_C) $(OBJ_ASM)
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kernel: .build/kernel
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@echo "Kernel created at '.build/kernel'"
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iso: .build/nub-os.iso
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@echo "ISO created at '.build/nub-os.iso'"
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clean:
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@rm -r .build 2>/dev/null || true
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build-dir:
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mkdir .build 2>/dev/null || true
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.build/nub-os.iso: .build/kernel grub.cfg
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mkdir -p .build/nub-os/boot/grub
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cp grub.cfg .build/nub-os/boot/grub
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cp .build/kernel .build/nub-os/boot/
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grub-mkrescue -o .build/nub-os.iso .build/nub-os/
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.build/kernel: $(OBJS) | linker.ld
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$(LD) $(LDFLAGS) -m elf_i386 -T linker.ld -o $@ $^
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.build/%.o: src/%.c | build-dir
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$(CC) $(CFLAGS) -c -o $@ $<
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.build/%.o: src/%.asm | build-dir
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nasm -f elf32 -o $@ $<
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