makefile

进行arm－linux嵌入式系统开发时

#
# if you want the loader in a special location (e.g. to RPMize shoehorn) use
#	make all [ EXTRAFLAGS="-DLOADERPATH=/usr/lib/shoehorn/" ]
# if you have sudo use
#	make suid [ SUDO=sudo ]
# select an install path with
#	make install INSTALLPREFIX=/usr (or /usr/local)
#

CROSS := arm-linux-
CFLAGS := -g -Wall
override CFLAGS += $(EXTRAFLAGS)
INSTALL := install
INSTALLPREFIX := /arm
LDFLAGS := -g

WHOAMI := $(shell whoami)
ifneq ($(WHOAMI),root)
	SUDO := sudo
endif

SRCS := download.c cploader.c

# The shoehorn loader needs to be setuid root to use packet sockets
# (needed for Ethernet download).  We only need this for the machine
# which actually has the EDB7211 connected to it.
#

all: loader.bin download cploader binarycopy

loader.elf: init.S loader.c ioregs.h ep7211.h flash.h
	$(CROSS)gcc -Wall -fomit-frame-pointer -O2 -nostdlib \
		-Wl,-Ttext,0x10000000 -N init.S loader.c -o loader.elf

%.bin: %.elf
	$(CROSS)objcopy -O binary $^ $@

download: download.c loader.bin
	gcc -o download download.c

cploader:loader.bin download cploader.c
	gcc -o cploader cploader.c

binarycopy:
	./cploader
# housecleaning
clean:
	rm -f loader.elf loader.bin download cploader
	rm -f *.o