############################################################################
#
# Makefile -- Top level uClinux makefile.
#
# Copyright (c) 2001-2004, SnapGear (www.snapgear.com)
# Copyright (c) 2001, Lineo
#

VERSIONPKG = 3.2.0
VERSIONSTR = $(CONFIG_VENDOR)/$(CONFIG_PRODUCT) Version $(VERSIONPKG)

############################################################################
#
# Lets work out what the user wants, and if they have configured us yet
#

.PHONY: all
ifeq (.config,$(wildcard .config))
include .config

all: no_root ucfront subdirs romfs modules modules_install image
else
all: no_root config_error
endif

.PHONY: no_root 
no_root:
	@if [ "`whoami`" = "root" ] && [ -z "$${FAKEROOTKEY}" ]; then \
		echo "Building DSLinux as root is dangerous!"; \
		echo "Build as non-root user instead."; \
		echo "Exiting"; \
		exit 1; \
	fi

############################################################################
#
# Get the core stuff worked out
#

LINUXDIR = $(CONFIG_LINUXDIR)
LIBCDIR  = $(CONFIG_LIBCDIR)
ROOTDIR  = $(shell pwd)
PATH	 := $(PATH):$(ROOTDIR)/tools
HOSTCC   = cc
IMAGEDIR = $(ROOTDIR)/images
RELDIR   = $(ROOTDIR)/release
ROMFSDIR = $(ROOTDIR)/romfs
ROMFSINST= romfs-inst.sh
SCRIPTSDIR = $(ROOTDIR)/config/scripts
TFTPDIR    = /tftpboot
BUILD_START_STRING = $(shell date)
BUILD_START_UNIX = $(shell date +%s)


LINUX_CONFIG  = $(ROOTDIR)/$(LINUXDIR)/.config
CONFIG_CONFIG = $(ROOTDIR)/config/.config
MODULES_CONFIG = $(ROOTDIR)/modules/.config


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

ifeq (config.arch,$(wildcard config.arch))
ifeq ($(filter %_default, $(MAKECMDGOALS)),)
include config.arch
ARCH_CONFIG = $(ROOTDIR)/config.arch
export ARCH_CONFIG
endif
endif

ifneq ($(SUBARCH),)
# Using UML, so make the kernel and non-kernel with different ARCHs
MAKEARCH = $(MAKE) ARCH=$(SUBARCH) CROSS_COMPILE=$(CROSS_COMPILE)
MAKEARCH_KERNEL = $(MAKE) ARCH=$(ARCH) SUBARCH=$(SUBARCH) CROSS_COMPILE=$(CROSS_COMPILE)
else
MAKEARCH = $(MAKE) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE)
MAKEARCH_KERNEL = $(MAKEARCH)
endif

DIRS    = $(VENDOR_TOPDIRS) include lib include user

export VENDOR PRODUCT ROOTDIR LINUXDIR HOSTCC CONFIG_SHELL
export CONFIG_CONFIG LINUX_CONFIG MODULES_CONFIG ROMFSDIR SCRIPTSDIR
export VERSIONPKG VERSIONSTR ROMFSINST PATH IMAGEDIR RELDIR RELFILES TFTPDIR
export BUILD_START_STRING BUILD_START_UNIX

.PHONY: ucfront
ucfront: no_root tools/ucfront/*.c
	$(MAKE) -C tools/ucfront
	ln -sf $(ROOTDIR)/tools/ucfront/ucfront tools/ucfront-gcc
	ln -sf $(ROOTDIR)/tools/ucfront/ucfront tools/ucfront-g++

############################################################################

#
# Config stuff,  we recall ourselves to load the new config.arch before
# running the kernel and other config scripts
#

.PHONY: config.tk config.in

config.in:
	@chmod u+x config/mkconfig
	config/mkconfig > config.in

config.tk: config.in
	$(MAKE) -C $(SCRIPTSDIR) tkparse
	ARCH=dummy $(SCRIPTSDIR)/tkparse < config.in > config.tmp
	@if [ -f /usr/local/bin/wish ];	then \
		echo '#!'"/usr/local/bin/wish -f" > config.tk; \
	else \
		echo '#!'"/usr/bin/wish -f" > config.tk; \
	fi
	cat $(SCRIPTSDIR)/header.tk >> ./config.tk
	-find . -depth -type d | grep -v .svn | xargs rmdir > /dev/null 2>&1 || exit 0
	rm -f config.tmp
	echo "set defaults \"/dev/null\"" >> config.tk
	echo "set help_file \"config/Configure.help\"" >> config.tk
	cat $(SCRIPTSDIR)/tail.tk >> config.tk
	chmod 755 config.tk

.PHONY: xconfig
xconfig: no_root config.tk
	@wish -f config.tk
	@if [ ! -f .config ]; then \
		echo; \
		echo "You have not saved your config, please re-run make config"; \
		echo; \
		exit 1; \
	 fi
	@chmod u+x config/setconfig
	@config/setconfig defaults
	@if egrep "^CONFIG_DEFAULTS_KERNEL=y" .config > /dev/null; then \
		$(MAKE) linux_xconfig; \
	 fi
	@if egrep "^CONFIG_DEFAULTS_MODULES=y" .config > /dev/null; then \
		$(MAKE) modules_xconfig; \
	 fi
	@if egrep "^CONFIG_DEFAULTS_VENDOR=y" .config > /dev/null; then \
		$(MAKE) config_xconfig; \
	 fi
	@config/setconfig final

.PHONY: config
config: no_root config.in
	@HELP_FILE=config/Configure.help \
		$(CONFIG_SHELL) $(SCRIPTSDIR)/Configure config.in
	@chmod u+x config/setconfig
	@config/setconfig defaults
	@if egrep "^CONFIG_DEFAULTS_KERNEL=y" .config > /dev/null; then \
		$(MAKE) linux_config; \
	 fi
	@if egrep "^CONFIG_DEFAULTS_MODULES=y" .config > /dev/null; then \
		$(MAKE) modules_config; \
	 fi
	@if egrep "^CONFIG_DEFAULTS_VENDOR=y" .config > /dev/null; then \
		$(MAKE) config_config; \
	 fi
	@config/setconfig final

.PHONY: menuconfig
menuconfig: no_root config.in
	$(MAKE) -C $(SCRIPTSDIR)/lxdialog all
	@HELP_FILE=config/Configure.help \
		$(CONFIG_SHELL) $(SCRIPTSDIR)/Menuconfig config.in
	@if [ ! -f .config ]; then \
		echo; \
		echo "You have not saved your config, please re-run make config"; \
		echo; \
		exit 1; \
	 fi
	@chmod u+x config/setconfig
	@config/setconfig defaults
	@if egrep "^CONFIG_DEFAULTS_KERNEL=y" .config > /dev/null; then \
		$(MAKE) linux_menuconfig; \
	 fi
	@if egrep "^CONFIG_DEFAULTS_MODULES=y" .config > /dev/null; then \
		$(MAKE) modules_menuconfig; \
	 fi
	@if egrep "^CONFIG_DEFAULTS_VENDOR=y" .config > /dev/null; then \
		$(MAKE) config_menuconfig; \
	 fi
	@config/setconfig final

.PHONY: oldconfig
oldconfig: no_root config.in
	@HELP_FILE=config/Configure.help \
		$(CONFIG_SHELL) $(SCRIPTSDIR)/Configure -d config.in
	@$(MAKE) oldconfig_linux
	@$(MAKE) oldconfig_modules
	@$(MAKE) oldconfig_config
	@$(MAKE) oldconfig_uClibc
	@chmod u+x config/setconfig
	@config/setconfig final

.PHONY: modules
modules:
	. $(LINUXDIR)/.config; if [ "$$CONFIG_MODULES" = "y" ]; then \
		[ -d $(LINUXDIR)/modules ] || mkdir $(LINUXDIR)/modules; \
		$(MAKEARCH_KERNEL) -C $(LINUXDIR) modules; \
	fi

.PHONY: modules_install
modules_install: modules
	. $(LINUXDIR)/.config; if [ "$$CONFIG_MODULES" = "y" ]; then \
		[ -d $(ROMFSDIR)/lib/modules ] || mkdir -p $(ROMFSDIR)/lib/modules; \
		$(MAKEARCH_KERNEL) -C $(LINUXDIR) INSTALL_MOD_PATH=$(ROMFSDIR) DEPMOD="../user/busybox/examples/depmod.pl -k vmlinux" modules_install; \
		rm -f $(ROMFSDIR)/lib/modules/*/build; \
		find $(ROMFSDIR)/lib/modules -type f -name "*o" | xargs -r $(STRIP) -R .comment -R .note -g; \
	fi

.PHONY: linux_xconfig
linux_xconfig:
	$(MAKEARCH_KERNEL) -C $(LINUXDIR) xconfig
.PHONY: linux_menuconfig
linux_menuconfig:
	$(MAKEARCH_KERNEL) -C $(LINUXDIR) menuconfig
.PHONY: linux_config
linux_config:
	$(MAKEARCH_KERNEL) -C $(LINUXDIR) config
.PHONY: modules_xconfig
modules_xconfig:
	[ ! -d modules ] || $(MAKEARCH) -C modules xconfig
.PHONY: modules_menuconfig
modules_menuconfig:
	[ ! -d modules ] || $(MAKEARCH) -C modules menuconfig
.PHONY: modules_config
modules_config:
	[ ! -d modules ] || $(MAKEARCH) -C modules config
.PHONY: modules_clean
modules_clean:
	-[ ! -d modules ] || $(MAKEARCH) -C modules clean
.PHONY: config_xconfig
config_xconfig:
	$(MAKEARCH) -C config xconfig
.PHONY: config_menuconfig
config_menuconfig:
	$(MAKEARCH) -C config menuconfig
.PHONY: config_config
config_config:
	$(MAKEARCH) -C config config
.PHONY: oldconfig_config
oldconfig_config:
	$(MAKEARCH) -C config oldconfig
.PHONY: oldconfig_modules
oldconfig_modules:
	[ ! -d modules ] || $(MAKEARCH) -C modules oldconfig
.PHONY: oldconfig_linux
oldconfig_linux:
	$(MAKEARCH_KERNEL) -C $(LINUXDIR) oldconfig
.PHONY: oldconfig_uClibc
oldconfig_uClibc:
	[ -z "$(findstring uClibc,$(LIBCDIR))" ] || $(MAKEARCH) -C $(LIBCDIR) oldconfig

############################################################################
#
# normal make targets
#

.PHONY: romfs
romfs: no_root ucfront linux subdirs 
	+for dir in vendors $(DIRS) ; do [ ! -d $$dir ] || $(MAKEARCH) -C $$dir romfs || exit 1 ; done
	-find $(ROMFSDIR)/. -name CVS | xargs -r rm -rf

.PHONY: image
image: no_root romfs modules modules_install
	[ -d $(IMAGEDIR) ] || mkdir $(IMAGEDIR)
	+$(MAKEARCH) -C vendors image

.PHONY: netflash
netflash netflash_only:
ifeq ($(NO_NETFLASH_EXE),)
	$(MAKE) -C prop/mstools CONFIG_PROP_MSTOOLS_NETFLASH_NETFLASH=y
endif

.PHONY: release
release:
	$(MAKE) -C release release

.PHONY: %_fullrelease
%_fullrelease:
	@echo "This target no longer works"
	@echo "Do a make -C release $@"
	exit 1
#
# fancy target that allows a vendor to have other top level
# make targets,  for example "make vendor_flash" will run the
# vendor_flash target in the vendors directory
#

.PHONY: vendor_% 
vendor_%:
	+$(MAKEARCH) -C vendors $@

.PHONY: linux
linux linux%_only:
	@if [ $(LINUXDIR) != linux-2.5.x -a $(LINUXDIR) != linux-2.6.x -a ! -f $(LINUXDIR)/.depend ] ; then \
		echo "ERROR: you need to do a 'make dep' first" ; \
		exit 1 ; \
	fi
	+$(MAKEARCH_KERNEL) -C $(LINUXDIR) $(LINUXTARGET) || exit 1
	if [ -f $(LINUXDIR)/vmlinux ]; then \
		ln -f $(LINUXDIR)/vmlinux $(LINUXDIR)/linux ; \
	fi

.PHONY: subdirs
subdirs: ucfront linux
	@echo "Build start unix"
	@echo $(BUILD_START_UNIX)
	for dir in $(DIRS) ; do [ ! -d $$dir ] || $(MAKEARCH_KERNEL) -C $$dir || exit 1 ; done

.PHONY: dep
dep:
	@if [ ! -f $(LINUXDIR)/.config ] ; then \
		echo "ERROR: you need to do a 'make config' first" ; \
		exit 1 ; \
	fi
	$(MAKEARCH_KERNEL) -C $(LINUXDIR) dep

# This one removes all executables from the tree and forces their relinking
.PHONY: relink
relink:
	find user prop vendors -type f -name '*.gdb' | sed 's/^\(.*\)\.gdb/\1 \1.gdb/' | xargs rm -f

.PHONY: clean 
clean: modules_clean
	for dir in $(LINUXDIR) $(DIRS); do [ ! -d $$dir ] || $(MAKEARCH) -C $$dir clean ; done
	rm -rf $(ROMFSDIR)/*
	rm -rf $(IMAGEDIR)/*
	rm -f config.tk
	rm -f $(LINUXDIR)/linux
	rm -rf $(LINUXDIR)/net/ipsec/alg/libaes $(LINUXDIR)/net/ipsec/alg/perlasm

.PHONY: real_clean
.PHONY: mrproper
real_clean mrproper: clean
	-$(MAKEARCH_KERNEL) -C $(LINUXDIR) mrproper
	-$(MAKEARCH) -C config clean
	-$(MAKEARCH) -C uClibc distclean
#	-$(MAKEARCH) -C $(RELDIR) clean
	rm -rf romfs config.in config.arch config.tk images
	rm -f modules/config.tk
	rm -rf .config .config.old .oldconfig autoconf.h

.PHONY: distclean
distclean: mrproper
	-$(MAKEARCH_KERNEL) -C $(LINUXDIR) distclean
	-rm -f user/tinylogin/applet_source_list user/tinylogin/config.h

.PHONY: %_only
%_only:
	[ ! -d "$(@:_only=)" ] || $(MAKEARCH) -C $(@:_only=)

.PHONY: %_clean
%_clean:
	[ ! -d "$(@:_clean=)" ] || $(MAKEARCH) -C $(@:_clean=) clean

.PHONY: %_default
%_default:
	@if [ ! -f "vendors/$(@:_default=)/config.device" ]; then \
		echo "vendors/$(@:_default=)/config.device must exist first"; \
		exit 1; \
	 fi
	-$(MAKE) clean > /dev/null 2>&1
	cp vendors/$(@:_default=)/config.device .config
	chmod u+x config/setconfig
	yes "" | config/setconfig defaults
	config/setconfig final
	$(MAKE) dep
	$(MAKE)

.PHONY: config_error
config_error:
	@echo "*************************************************"
	@echo "You have not run make config."
	@echo "The build sequence for this source tree is:"
	@echo "1. 'make config' or 'make xconfig'"
	@echo "2. 'make dep'"
	@echo "3. 'make'"
	@echo "*************************************************"
	@exit 1

.PHONY: prune
prune:
	$(MAKE) -C user prune

.PHONY: dist-prep
dist-prep:
	-find $(ROOTDIR) -name 'Makefile*.bin' | while read t; do \
		$(MAKEARCH) -C `dirname $$t` -f `basename $$t` $@; \
	 done

############################################################################

.PHONY: xsh
xsh:
	@$(MAKE) -f Makefile.$@