makefile

来自「ARM开发用的启动代码」· 代码 · 共 57 行

CROSS = arm-elf-

CC =     $(CROSS)gcc
AS =     $(CROSS)as
AR =     $(CROSS)ar
LD =     $(CROSS)ld
NM =     $(CROSS)nm
RM =     rm
OBJCOPY = $(CROSS)objcopy
BIN2C   = ./tools/bin2c
ZIP     = gzip

CFLAGS = -fno-builtin -nostdlib -I.
AFLAGS = -mapcs-32 -msoft-float -mno-fpu -I.
LDFLAGS= $(CFLAGS) -Wl,-elf2flt

.EXPORT_ALL_VARIABLES:


OBJ = head.o bios.o gunzip.o utils.o console.o bioscall.o \
	sysinit.o biosapi.o setup.o fdisk.o tftp.o 

all:
	make -C sysinit
	make -C biosapi
	make -C setup
	make -C fdisk
	make -C tftp
	make bios.bin

bios.bin: bios
	$(OBJCOPY) -O binary \
		--only-section=.init \
		--only-section=.text \
		--only-section=.rodata \
		--only-section=.data \
		--only-section=.bss bios bios.bin

bios: $(OBJ)
	$(LD) -p -X -T bios.ld $(OBJ) \
		-o bios

clean:
	make clean -C sysinit
	make clean -C biosapi
	make clean -C setup
	make clean -C fdisk
	make clean -C tftp
	$(RM) -rf *.o bios bios.bin


%.o: %.c
	$(CC) $(CFLAGS) -c -o $@ $<

%.o: %.S
	$(CC) $(AFLAGS) -c -o $@ $<