makefile

本source code 為s3c4510的bootloader

SDIR = ../../
CROSS_COMPILE = arm-elf-

OBJS = 		\
 loader.o	\
    
AS	= $(CROSS_COMPILE)as
LD	= $(CROSS_COMPILE)ld
CC	= $(CROSS_COMPILE)gcc
CPP	= $(CC) -E
AR	= $(CROSS_COMPILE)ar
NM	= $(CROSS_COMPILE)nm
STRIP	= $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
RANLIB	= $(CROSS_COMPILE)RANLIB
LDSCRIPT  = loader.lds

CFLAGS= -Wall 		\
 -Wstrict-prototypes 	\
 -Os 			\
 -fno-builtin 		\
 -fomit-frame-pointer 	\
 -fno-strict-aliasing  	\
 -fno-common 		\
 -nostdlib 		\
 -mshort-load-bytes 	\
 -msoft-float		\
 -DLITTLE 		\
 -D_S3C4530_ 		\
 -DROM_AT_ADDRESS_ZERO 	\
 -DLED_ONLY		\
 -DNO_HAVE_RAND 	\
 -DNO_HAVE_MEMCPY 	\
 -pipe 			\
 -mapcs-32 		\
 -march=armv4 		\
 -mtune=arm7tdmi 	\
 -I../

AFLAGS   = -D__ASSEMBLY__ $(CFLAGS)
LDFLAGS  = -nostdlib -T $(LDSCRIPT) 
all : smon-1.2.rom 

smon-1.2.rom: smon-1.2
	$(OBJCOPY) -O binary $< $@

smon-1.2: $(OBJS) $(LDSCRIPT) init_gnu.o
	$(LD) $(LDFLAGS) $(OBJS) \
	    -Map smon-1.2.map -o smon-1.2

init_gnu.o	: $(SDIR)init_gnu.S
loader.o 	: $(SDIR)loader.c

clean: 
	rm smon-1.2 *.o *.map *.rom  

%.s:	$(SDIR)%.S
	$(CPP) $(AFLAGS) -o $@ $<
%.o:	$(SDIR)%.S
	$(CC) $(AFLAGS) -c -o $@ $<
%.o:	$(SDIR)%.c
	$(CC) $(CFLAGS) -c -o $@ $<