makefile

SMDK2440 boot code, base on vivi

VERSION = 1
PATCHLEVEL = 0
SUBLEVEL = 0

VIVIRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)

ARCH := arm

CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
	else if [ -x /bin/bash ]; then echo /bin/bash; \
	else echo sh; fi ; fi)
TOPDIR	:= $(shell /bin/pwd)

VIVI_INCLUDE           = $(TOPDIR)/include
KERNEL_HEADER	:= 

HOSTCC          = gcc
HOSTCFLAGS      = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer

CROSS_COMPILE   = arm-linux-

#
# Include the make variables (CC, etc...)
#

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
MAKEFILES       = $(TOPDIR)/.config
MD5SUM		= md5sum
PERL            = perl
AWK		= awk

export  VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE \
        CONFIG_SHELL TOPDIR VIVI_INCLUDE HOSTCC HOSTCFLAGS CROSS_COMPILE \
        AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE MAKEFILES  \
        MD5SUM PERL AWK

all: 	do-it-all

ifeq (.config,$(wildcard .config))
include .config
ifeq ($(CONFIG_BOOT_TYPE_MDOCP),y)
do-it-all:	Version vivi vivi_double
else
do-it-all:	Version vivi
endif
else
CONFIGURATION = config
do-it-all:	config
endif

#
# standard CFLAGS
#

CPPFLAGS := -I$(VIVI_INCLUDE)
CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -O2 -fPIC -fomit-frame-pointer
AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS)

ifeq ($(CONFIG_KERNEL_VERSION_2_6),y)
CFLAGS += -I$(KERNEL_HEADER)
endif

CORE_FILES	= init/main.o init/version.o lib/lib.o kernel/kernel.o
SUBDIRS         = drivers lib kernel

DRIVERS-y :=
DRIVERS-$(CONFIG_SERIAL) += drivers/serial/serial.o
DRIVERS-$(CONFIG_MTD) += drivers/mtd/mtd.o
DRIVERS-$(CONFIG_CHAR) += drivers/char/char.o
DRIVERS-$(CONFIG_FB) += drivers/video/video.o
DRIVERS-$(CONFIG_NET) += drivers/net/net.o net/network.o
DRIVERS := $(DRIVERS-y)

CLEAN_FILES = \
	usbboot-elf \
	usbboot.bin \
	usbboot.nm \
	usbboot.map

ifeq ($(CONFIG_BOOT_TYPE_MDOCP),y)
CLEAN_FILES += \
	arch/pxa250/ipl/ipl arch/pxa250/ipl/ipl-elf \
	arch/pxa250/ipl/ipl.lds arch/pxa250/ipl/ipl.map \
	arch/pxa250/ipl/ipl.bin \
	arch/sa1100/ipl/ipl arch/sa1100/ipl/ipl-elf \
	arch/sa1100/ipl/ipl.lds arch/sa1100/ipl/ipl.map \
	arch/sa1100/ipl/ipl.bin \
	vivi_double
endif

OBJCOPYFLAGS = -R .comment -R .stab -R .stabstr
LINKFLAGS = -Tarch/vivi.lds -Bstatic

DISTCLEAN_FILES = \
	include/autoconf.h include/version.h include/compile.h include/arch \
	scripts/lxdialog/*.o scripts/lxdialog/lxdialog \
	.menuconfig.log \
	.config .config.old TAGS tags

include arch/Makefile

export  CPPFLAGS CFLAGS AFLAGS

export  DRIVERS LDFLAGS

Version: dummy
	@rm -f include/compile.h

mk_symlinks:
	rm -f include/arch
	( cd include ; ln -sf arch-$(MACHINE) arch ; cd ..)

vivi: include/version.h $(CONFIGURATION) init/main.o init/version.o linuxsubdirs
	$(LD) -v $(LINKFLAGS) \
		$(HEAD) \
		$(CORE_FILES) \
		$(DRIVERS) \
		-o usbboot-elf
	$(NM) -v -l usbboot-elf > usbboot.map
	$(OBJCOPY) -O binary -S usbboot-elf usbboot.bin $(OBJCOPYFLAGS)
 
util/dexpand:
	$(MAKE) -C util dexpand

vivi_double: vivi util/dexpand
	./util/dexpand vivi vivi_double

oldconfig: mk_symlinks
	$(CONFIG_SHELL) scripts/Configure -d arch/config.in

config: mk_symlinks 
	$(CONFIG_SHELL) scripts/Configure arch/config.in

menuconfig: include/version.h mk_symlinks
	$(MAKE) -C scripts/lxdialog all
	$(CONFIG_SHELL) scripts/Menuconfig arch/config.in

clean: mk_symlinks
	find . \( -name '*.o' -o -name core -o -name ".*.flags" \) -type f -print \
	| grep -v lxdialog/ | xargs rm -f
	@rm -vf $(CLEAN_FILES)

distclean: clean
	rm -f $(DISTCLEAN_FILES)

linuxsubdirs: $(patsubst %, _dir_%, $(SUBDIRS))

$(patsubst %, _dir_%, $(SUBDIRS)) : include/version.h
	$(MAKE) CFLAGS="$(CFLAGS)" -C $(patsubst _dir_%, %, $@)

$(TOPDIR)/include/version.h: include/version.h
$(TOPDIR)/include/compile.h: include/compile.h

include/compile.h: $(CONFIGURATION) include/version.h
	@echo -n \#define UTS_VERSION \"\#$(VIVIRELEASE) > .ver
	@if [ -f .name ]; then  echo -n \-`cat .name` >> .ver; fi
	@echo ' '`date`'"' >> .ver
	@echo \#define VIVI_COMPILE_TIME \"`date +%T`\" >> .ver
	@echo \#define VIVI_COMPILE_BY \"`whoami`\" >> .ver
	@echo \#define VIVI_COMPILE_HOST \"`hostname`\" >> .ver
	@if [ -x /bin/dnsdomainname ]; then \
	   echo \#define VIVI_COMPILE_DOMAIN \"`dnsdomainname`\"; \
	 elif [ -x /bin/domainname ]; then \
	   echo \#define VIVI_COMPILE_DOMAIN \"`domainname`\"; \
	 else \
	   echo \#define VIVI_COMPILE_DOMAIN ; \
	 fi >> .ver
	@echo \#define VIVI_COMPILER \"`$(CC) $(CFLAGS) -v 2>&1 | tail -1`\" >> .ver
	@mv -f .ver $@

include/version.h:
	@echo \#define VIVI_RELEASE \"$(VIVIRELEASE)\" > .ver
	@echo \#define VIVI_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)` >> .ver
	@echo '#define VIVI_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))' >>.ver
	@mv -f .ver $@

init/version.o: init/version.c include/compile.h
	$(CC) $(CFLAGS) -DUTS_MACHINE='"$(ARCH)"' -c -o init/version.o init/version.c

init/main.o: init/main.c
	$(CC) $(CFLAGS) $(PROFILING) -c -o $*.o $<

TAGS: dummy
	etags `find include -name '*.h'`
	find $(SUBDIRS) init -name '*.[ch]' | xargs etags -a

# Exuberant ctags works better with -I
tags: dummy
	CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_NOVERS"`; \
	ctags $$CTAGSF `find include -name '*.h'` && \
	find $(SUBDIRS) init -name '*.[ch]' | xargs ctags $$CTAGSF -a

%: ./arch/def-configs/% 
	$(MAKE) distclean
	cp arch/def-configs/$* ./.config -f
	$(MAKE) oldconfig
	$(MAKE)

ifdef CONFIGURATION
..$(CONFIGURATION):
	@echo
	@echo "You have a bad or nonexistent" .$(CONFIGURATION) ": running 'make" $(CONFIGURATION)"'"
	@echo
	$(MAKE) $(CONFIGURATION)
	@echo
	@echo "Successful. Try re-making (ignore the error that follows)"
	@echo
	exit 1

dummy:

else

dummy:

endif

include Rules.make