79 lines
1.2 KiB
Makefile
79 lines
1.2 KiB
Makefile
ARCHDIR=arch/i686
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CFLAGS?=
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ASFLAGS?=
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INCLUDEDIR=include
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CFLAGS:=\
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-O2 \
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-std=gnu99 \
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-ffreestanding \
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-Wall -Wextra \
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-I$(INCLUDEDIR) \
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$(CFLAGS)
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ASFLAGS:=\
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-I$(INCLUDEDIR) \
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-I$(ARCHDIR) \
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$(ASFLAGS)
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KERNEL_OBJS=\
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kernel/kernel.o \
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kernel/debugging.o \
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kernel/elf.o \
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LIB_OBJS=\
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$(ARCHDIR)/bootstrap.o \
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$(ARCHDIR)/tty.o \
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$(ARCHDIR)/strlib.o \
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$(ARCHDIR)/idt.o \
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$(ARCHDIR)/interrupt.o \
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$(ARCHDIR)/gdt.o \
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OBJS=$(KERNEL_OBJS) $(LIB_OBJS)
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LDFLAGS=$(OBJS) \
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-ffreestanding \
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-O2 \
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-nostdlib \
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-lgcc
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.PHONY: all clean myos.iso
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.SUFFIXES: .c .o .s
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all: myos.iso
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clean:
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rm -f $(OBJS)
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rm -f myos.kernel
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rm -f myos.iso
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rm -f isodir/boot/myos.kernel
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$(ARCHDIR)/interrupt.o: CFLAGS += -mgeneral-regs-only
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# kernel/elf.o: CFLAGS += -masm=intel
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%.o : %.c
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i686-elf-gcc -c $< -o $@ $(CFLAGS)
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%.o : %.s
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i686-elf-as $< -o $@ $(ASFLAGS)
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myos.kernel: $(OBJS)
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i686-elf-gcc -T $(ARCHDIR)/linker.ld -o myos.kernel $(LDFLAGS)
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grub-file --is-x86-multiboot myos.kernel
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myos.iso: myos.kernel
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cp myos.kernel isodir/boot/myos.kernel
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grub-mkrescue -o myos.iso isodir
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debug: CFLAGS += -g -O0
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debug: ASFLAGS += -g
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debug: all
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run: all
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qemu-system-i386 myos.iso
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run-debug: debug
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qemu-system-i386 -S -gdb tcp::9000 myos.iso
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