49 lines
1.2 KiB
Makefile
49 lines
1.2 KiB
Makefile
GCCPARAMS = -m32 -fno-pie -nostdlib -fstrength-reduce -fomit-frame-pointer -finline-functions -fno-builtin -nostdinc
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ASPARAMS = -f elf32
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LDPARAMS = -m elf_i386
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#BUILD_NUMBER_FILE=build-number.txt
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objects = obj/start.o \
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obj/main.o \
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obj/scrn.o \
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obj/gdt.o \
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obj/idt.o \
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obj/isrs.o \
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obj/irq.o \
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obj/timer.o \
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obj/kb.o \
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obj/shell.o
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run: kernel.iso
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qemu-system-x86_64 -cdrom kernel.iso &
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obj/%.o: src/%.c
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mkdir -p $(@D)
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gcc $(GCCPARAMS) -c -o $@ $<
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obj/%.o: src/%.asm
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mkdir -p $(@D)
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nasm $(ASPARAMS) -o $@ $<
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kernel.bin: linker.ld $(objects)
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mkdir -p obj/bin
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ld $(LDPARAMS) -T $< -o obj/bin/$@ $(objects)
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#https://www.linuxjournal.com/content/add-auto-incrementing-build-number-your-build-process
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#include buildnumber.mak
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kernel.iso: kernel.bin
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mkdir iso
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mkdir iso/boot
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mkdir iso/boot/grub
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cp obj/bin/kernel.bin iso/boot/kernel.bin
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echo 'menuentry SDOS {' > iso/boot/grub/grub.cfg
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echo ' multiboot /boot/kernel.bin' >> iso/boot/grub/grub.cfg
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echo ' boot' >> iso/boot/grub/grub.cfg
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echo '}' >> iso/boot/grub/grub.cfg
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grub-mkrescue --output=kernel.iso iso
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rm -rf iso
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.PHONY: clean
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clean:
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rm -rf obj kernel.iso
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