TOPDIR = $(shell pwd) ARCH = x86 NAME = eduos KERNDIRS = libkern kernel mm arch/$(ARCH)/kernel SUBDIRS = $(KERNDIRS) # Set your own cross compiler tool chain prefix here CROSSCOMPREFIX = CC_FOR_TARGET = $(CROSSCOMPREFIX)gcc CXX_FOR_TARGET = $(CROSSCOMPREFIX)g++ GCC_FOR_TARGET = $(CROSSCOMPREFIX)gcc CPP_FOR_TARGET = $(CROSSCOMPREFIX)cpp AR_FOR_TARGET = $(CROSSCOMPREFIX)ar AS_FOR_TARGET = $(CROSSCOMPREFIX)as LD_FOR_TARGET = $(CROSSCOMPREFIX)ld NM_FOR_TARGET = $(CROSSCOMPREFIX)nm OBJDUMP_FOR_TARGET = $(CROSSCOMPREFIX)objdump OBJCOPY_FOR_TARGET = $(CROSSCOMPREFIX)objcopy RANLIB_FOR_TARGET = $(CROSSCOMPREFIX)ranlib STRIP_FOR_TARGET = $(CROSSCOMPREFIX)strip READELF_FOR_TARGET = $(CROSSCOMPREFIX)readelf NASM = nasm NASMFLAGS = -felf32 -g INCLUDE = -I$(TOPDIR)/include -I$(TOPDIR)/arch/$(ARCH)/include # Compiler options for final code CFLAGS = -g -m32 -march=i586 -Wall -O2 -fno-builtin -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc $(INCLUDE) -fno-stack-protector # Compiler options for debugging #CFLAGS = -g -O -m32 -march=i586 -Wall -fno-builtin -DWITH_FRAME_POINTER -nostdinc $(INCLUDE) -fno-stack-protector AR = ar ARFLAGS = rsv RM = rm -rf LDFLAGS = -T link.ld -z max-page-size=4096 --defsym __BUILD_DATE=$(shell date +'%Y%m%d') --defsym __BUILD_TIME=$(shell date +'%H%M%S') STRIP_DEBUG = --strip-debug KEEP_DEBUG = --only-keep-debug # Prettify output V = 0 ifeq ($V,0) Q = @ P = > /dev/null endif default: all all: $(NAME).elf $(NAME).elf: $Q$(LD_FOR_TARGET) $(LDFLAGS) -o $(NAME).elf $^ @echo [OBJCOPY] $(NAME).sym $Q$(OBJCOPY_FOR_TARGET) $(KEEP_DEBUG) $(NAME).elf $(NAME).sym @echo [OBJCOPY] $(NAME).elf $Q$(OBJCOPY_FOR_TARGET) $(STRIP_DEBUG) $(NAME).elf clean: $Q$(RM) $(NAME).elf $(NAME).sym *~ @echo Cleaned. veryclean: clean $Q$(RM) qemu-vlan0.pcap @echo Very cleaned qemu: $(NAME).elf qemu-system-i386 -monitor stdio -smp 2 -net nic,model=rtl8139 -net user,hostfwd=tcp::12345-:7 -net dump -kernel $(NAME).elf qemu-dbg: $(NAME).elf qemu-system-i386 -monitor stdio -s -S -smp 2 -net nic,model=rtl8139 -net user,hostfwd=tcp::12345-:7 -net dump -kernel $(NAME).elf doc: @doxygen @echo Create documentation... %.o : %.c @echo [CC] $@ $Q$(CC_FOR_TARGET) -c -D__KERNEL__ $(CFLAGS) -o $@ $< @echo [DEP] $*.dep $Q$(CC_FOR_TARGET) -MF $*.dep -MT $*.o -MM $(CFLAGS) $< %.o : %.asm @echo [ASM] $@ $Q$(NASM) $(NASMFLAGS) -o $@ $< %.o : %.S @echo [GCC-ASM] $@ $Q$(CC_FOR_TARGET) $(CFLAGS) -c -o $@ $< .PHONY: default all clean emu gdb newlib tools include $(addsuffix /Makefile,$(SUBDIRS))