forked from PoliEcho-holding-org/kern
Tom-on
8245187356
- Makefile changes - Linker script updates - Made it comply with C17 - Removed entry.asm (finally)
77 lines
2.5 KiB
Makefile
77 lines
2.5 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 = -std=c17 -ffreestanding -fno-builtin -fno-stack-protector -fno-pie \
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-Os -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=$(BUILD)/term16n.bin of=kern.iso bs=512 seek=46 conv=notrunc status=none
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@dd if=$(BUILD)/testfont.bin of=kern.iso bs=512 seek=50 conv=notrunc status=none
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@dd if=$(SRC)/fs/test.txt of=kern.iso bs=512 seek=54 conv=notrunc status=none
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@dd if=$(BUILD)/calc.bin of=kern.iso bs=512 seek=55 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
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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 -z notext --oformat binary -o $(BUILD)/kernel.bin $(BUILD)/kernel.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 -z notext --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\
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-drive format=raw,file="./kern.iso",index=0,media=disk\
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-m 256M\
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-accel tcg\
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-rtc base=localtime,clock=host,driftfix=slew\
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-audiodev coreaudio,id=audio0 -machine pcspk-audiodev=audio0
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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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