forked from PoliEcho-holding-org/kern
Tom-on
7826b9b7d4
- include/ now has subdirs - standard C headers will be in 'include/c'. Any program can include these - all other header shall only be used by the kernel
73 lines
2.4 KiB
Makefile
73 lines
2.4 KiB
Makefile
# Variables
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CC = i386-elf-gcc
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LD = i386-elf-ld
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AS = nasm
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CFLAGS = -ffreestanding -fno-builtin -fno-stack-protector -nostdinc -mgeneral-regs-only -m32 -march=i386 -Wall -Iinclude/c
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SRC = ./src
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BUILD = ./build
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C_FILES = calc
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FONTS = testfont term16n
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.PHONY: os clean run
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# Main compilation target
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os: $(BUILD) filesystem
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@echo "\nDone!\n"
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# Filesystem
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filesystem: bootloader kernel $(C_FILES) $(FONTS)
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@echo "Building filesystem..."
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@$(AS) -fbin -o $(BUILD)/filetable.bin $(SRC)/filetable.asm
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@dd if=/dev/zero of=kern.iso bs=512 count=2880 status=none
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# TODO: Make this not so manual
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@dd if=$(BUILD)/boot.bin of=kern.iso bs=512 seek=0 conv=notrunc status=none
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@dd if=$(BUILD)/filetable.bin of=kern.iso bs=512 seek=5 conv=notrunc status=none
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@dd if=$(BUILD)/kernel.bin of=kern.iso bs=512 seek=6 conv=notrunc status=none
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@dd if=$(BUILD)/term16n.bin of=kern.iso bs=512 seek=36 conv=notrunc status=none
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@dd if=$(BUILD)/testfont.bin of=kern.iso bs=512 seek=40 conv=notrunc status=none
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@dd if=$(SRC)/fs/test.txt of=kern.iso bs=512 seek=44 conv=notrunc status=none
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@dd if=$(BUILD)/calc.bin of=kern.iso bs=512 seek=45 conv=notrunc status=none
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$(BUILD):
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@[ -d $(BUILD) ] || mkdir $(BUILD)
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@rm -rf $(BUILD)/*
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# Bootloader: This target is responsible for creating boot.bin
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bootloader: $(SRC)/stage1.asm $(SRC)/stage2.asm
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@echo "Assembling $(SRC)/stage1.asm..."
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@$(AS) -fbin -o $(BUILD)/stage1.bin $(SRC)/stage1.asm
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@echo "Assembling $(SRC)/stage2.asm..."
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@$(AS) -fbin -o $(BUILD)/stage2.bin $(SRC)/stage2.asm
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@cat $(BUILD)/stage1.bin $(BUILD)/stage2.bin > $(BUILD)/boot.bin
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# Kernel: This target is responsible for creating kernel.bin
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kernel: $(SRC)/kernel.c $(SRC)/entry.asm
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@echo "Assembling $(SRC)/entry.asm..."
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@$(AS) -felf32 -o $(BUILD)/entry.o $(SRC)/entry.asm
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@echo "Compiling $(SRC)/kernel.c..."
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@$(CC) $(CFLAGS) -Iinclude -o $(BUILD)/kernel.o -c $(SRC)/kernel.c
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@$(LD) -T$(SRC)/kernel.ld --oformat binary -o $(BUILD)/kernel.bin $(BUILD)/*.o
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@rm $(BUILD)/*.o
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$(C_FILES):
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@echo "Compiling $(SRC)/$@.c..."
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@$(CC) $(CFLAGS) -o $(BUILD)/$@.o -c $(SRC)/$@.c
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@$(LD) -T$(SRC)/$@.ld --oformat binary -o $(BUILD)/$@.bin $(BUILD)/$@.o
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@rm $(BUILD)/$@.o
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$(FONTS):
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@echo "Assembling $(SRC)/fonts/$@.asm..."
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@$(AS) -fbin -o $(BUILD)/$@.bin $(SRC)/fonts/$@.asm
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# Run QEMU
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run:
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qemu-system-x86_64 -drive format=raw,file="./kern.iso",index=0,media=disk -m 256M -accel tcg
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# Clean all build files
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clean:
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@rm -rf $(BUILD)
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@rm -f kern.iso
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