# 
# initramfs/Makefile
#

TOPDIR = $(shell pwd)

include $(TOPDIR)/../toolchain/vars.mk

TARGET = arm-crux-linux-gnueabihf

WORK = $(TOPDIR)/work
CLFS = $(TOPDIR)/../toolchain/clfs
CROSSTOOLS = $(TOPDIR)/../toolchain/crosstools

BUSYBOX_VERSION  = 1.21.1
BUSYBOX_SOURCE   = http://busybox.net/downloads/busybox-$(BUSYBOX_VERSION).tar.bz2

E2FSPROGS_VERSION = 1.42.5
E2FSPROGS_SOURCE = http://downloads.sourceforge.net/project/e2fsprogs/e2fsprogs/v$(E2FSPROGS_VERSION)/e2fsprogs-$(E2FSPROGS_VERSION).tar.gz

DIALOG_VERSION = 1.2-20130523
DIALOG_SOURCE = ftp://invisible-island.net/dialog/dialog-$(DIALOG_VERSION).tgz

NCURSES_HEADER = $(CLFS)/usr/include/ncurses.h

.PHONY: all check-root busybox e2fsprogs dialog gen_init_cpio initramfs clean distclean

all: initramfs

clean: busybox-clean e2fsprogs-clean dialog-clean gen_init_cpio-clean initramfs-clean

distclean: busybox-distclean e2fsprogs-distclean dialog-distclean gen_init_cpio-distclean initramfs-distclean

check-root:
	@if [ "$$UID" != "0" ]; then \
		echo "You need to be root to do this."; \
		echo "Now you should run 'make initramfs' as root to finish compilation or 'sudo make initramfs'."; \
		exit 1; \
	fi

$(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2:
	wget -P $(WORK) -c $(BUSYBOX_SOURCE)

$(WORK)/busybox-$(BUSYBOX_VERSION): $(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2 $(TOPDIR)/busybox-$(BUSYBOX_VERSION).config $(WORK)/fix-resource_header.patch
	tar -C $(WORK) -xvjf $(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2
	cd $(WORK)/busybox-$(BUSYBOX_VERSION) && \
		patch -p1 -i $(WORK)/fix-resource_header.patch
	cp -v $(TOPDIR)/busybox-$(BUSYBOX_VERSION).config $(WORK)/busybox-$(BUSYBOX_VERSION)/.config
	touch $(WORK)/busybox-$(BUSYBOX_VERSION)

$(WORK)/busybox-$(BUSYBOX_VERSION)/_install/bin/busybox: $(WORK)/busybox-$(BUSYBOX_VERSION)
	export PATH=$(CROSSTOOLS)/bin:$$PATH &&  \
	export LD_LIBRARY_PATH=$(CROSSTOOLS)/lib:$$LD_LIBRARY_PATH && \
	make -j1 -C $(WORK)/busybox-$(BUSYBOX_VERSION) ARCH=arm CROSS_COMPILE=$(TARGET)- install && \
	install -D -m 0755 $(WORK)/busybox-$(BUSYBOX_VERSION)/examples/udhcp/simple.script $(WORK)/busybox-$(BUSYBOX_VERSION)/_install/usr/share/udhcpc/default.script && \
	$(TARGET)-strip $(WORK)/busybox-$(BUSYBOX_VERSION)/_install/bin/busybox && \
	touch $(WORK)/busybox-$(BUSYBOX_VERSION)/_install/bin/busybox

busybox: $(WORK)/busybox-$(BUSYBOX_VERSION)/_install/bin/busybox

busybox-clean:
	rm -vrf $(WORK)/busybox-$(BUSYBOX_VERSION)

busybox-distclean: busybox-clean
	rm -vf $(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2

$(WORK)/e2fsprogs-$(E2FSPROGS_VERSION).tar.gz:
	wget -P $(WORK) -c $(E2FSPROGS_SOURCE)

$(WORK)/e2fsprogs-$(E2FSPROGS_VERSION): $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION).tar.gz
	tar -C $(WORK) -xvzf $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION).tar.gz
	touch $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION)

$(WORK)/e2fsprogs-$(E2FSPROGS_VERSION)/misc/mke2fs: $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION)
	export PATH=$(CROSSTOOLS)/bin:$$PATH &&  \
	export LD_LIBRARY_PATH=$(CROSSTOOLS)/lib:$$LD_LIBRARY_PATH && \
	cd $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION) && \
		./configure --build=$(BUILD) --host=$(TARGET) --prefix=/usr --with-root-prefix= \
		--mandir=/usr/man --disable-symlink-install --disable-nls --disable-compression \
		--disable-htree --disable-elf-shlibs --disable-bsd-shlibs --disable-profile \
		--disable-checker --disable-jbd-debug --disable-blkid-debug --disable-testio-debug \
		--enable-libuuid --enable-libblkid --disable-libquota --disable-debugfs --disable-imager \
		--disable-resizer --disable-defrag --disable-fsck --disable-e2initrd-helper \
		--disable-tls --disable-rpath && \
		make V=1 CFLAGS="$(CFLAGS) -static" LDFLAGS="$(LDFLAGS) -static" && \
		$(TARGET)-strip $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION)/misc/mke2fs && \
		touch $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION)/misc/mke2fs

e2fsprogs: $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION)/misc/mke2fs

e2fsprogs-clean:
	rm -vrf $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION)

e2fsprogs-distclean:
	rm -vf $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION).tar.bz2

$(WORK)/dialog-$(DIALOG_VERSION).tgz:
	wget -P $(WORK) -c $(DIALOG_SOURCE)

$(WORK)/dialog-$(DIALOG_VERSION): $(WORK)/dialog-$(DIALOG_VERSION).tgz
	tar -C $(WORK) -xvzf $(WORK)/dialog-$(DIALOG_VERSION).tgz
	touch $(WORK)/dialog-$(DIALOG_VERSION)

$(WORK)/dialog-$(DIALOG_VERSION)/_install/usr/bin/dialog: $(WORK)/dialog-$(DIALOG_VERSION)
	export PATH=$(CROSSTOOLS)/bin:$$PATH && \
	export LD_LIBRARY_PATH=$(CROSSTOOLS)/lib:$$LD_LIBRARY_PATH && \
	cd $(WORK)/dialog-$(DIALOG_VERSION) && \
		./configure --build=$(BUILD) --host=$(TARGET) --prefix=/usr --with-ncursesw && \
		find -type f -name 'makefile' \
		-exec sed -e "s|-I/usr|-I$(CLFS)/usr|g" -e "s|-L/usr|-L$(CLFS)/usr|g" -i {} \; && \
		make CC="$(TARGET)-gcc -static" && \
		make DESTDIR=$(WORK)/dialog-$(DIALOG_VERSION)/_install install && \
		$(TARGET)-strip $(WORK)/dialog-$(DIALOG_VERSION)/_install/usr/bin/dialog && \
		touch $(WORK)/dialog-$(DIALOG_VERSION)/_install/usr/bin/dialog

dialog: $(NCURSES_HEADER) $(WORK)/dialog-$(DIALOG_VERSION)/_install/usr/bin/dialog

dialog-clean:
	rm -vrf $(WORK)/dialog-$(DIALOG_VERSION)

dialog-distclean: dialog-clean
	rm -vf $(WORK)/dialog-$(DIALOG_VERSION).tgz

$(WORK)/gen_init_cpio: $(WORK)/gen_init_cpio.c
	cd $(WORK) && \
		$(CC) $(CFLAGS) -Wall -o gen_init_cpio gen_init_cpio.c

gen_init_cpio: $(WORK)/gen_init_cpio

gen_init_cpio-clean:
	rm -rf $(WORK)/gen_init_cpio

gen_init_cpio-distclean: gen_init_cpio-clean

$(WORK)/mnt:
	mkdir -p $(WORK)/mnt

$(WORK)/initramfs.cpio: check-root busybox e2fsprogs dialog $(WORK)/mnt gen_init_cpio $(TOPDIR)/filesystem
	install -d -m 0755 $(WORK)/mnt/{mnt,media,etc,dev,sys,proc,lib,usr,var/{log,lock,run},tmp}
	mknod $(WORK)/mnt/dev/console c 5 1 && chmod 666 $(WORK)/mnt/dev/console
	mknod $(WORK)/mnt/dev/null c 1 3 && chmod 666 $(WORK)/mnt/dev/null
	mknod $(WORK)/mnt/dev/tty c 5 0 && chmod 666 $(WORK)/mnt/dev/tty
	mkdir $(WORK)/mnt/dev/rd && mknod $(WORK)/mnt/dev/rd/0 b 1 0
	mknod $(WORK)/mnt/dev/ram0 b 1 0 && chmod 600 $(WORK)/mnt/dev/ram0
	for i in 0 1 2 3 4 5 6 7; do \
		mknod $(WORK)/mnt/dev/tty$$i c 4 $$i && chmod 666 $(WORK)/mnt/dev/tty$$i; \
	done
	cp -dRv $(WORK)/busybox-$(BUSYBOX_VERSION)/_install/* $(WORK)/mnt
	install -v -m 0755 $(WORK)/e2fsprogs-$(E2FSPROGS_VERSION)/misc/mke2fs $(WORK)/mnt/sbin
	for i in 2 3 4 4dev; do \
		ln -s mke2fs $(WORK)/mnt/sbin/mkfs.ext$$i; \
	done
	install -v -m 0755 $(WORK)/dialog-$(DIALOG_VERSION)/_install/usr/bin/dialog $(WORK)/mnt/usr/bin
	cp -dRv $(CLFS)/lib/libnss_{files*,dns*} $(CLFS)/lib/libresolv* $(WORK)/mnt/lib
	install -d  $(WORK)/mnt/usr/share/terminfo
	cp -dRv $(CLFS)/usr/share/terminfo/v $(WORK)/mnt/usr/share/terminfo
	install -v -m 0644 $(TOPDIR)/filesystem/{fstab,inittab,profile,protocols,*.conf} $(WORK)/mnt/etc
	install -v -m 0664 $(TOPDIR)/filesystem/group $(WORK)/mnt/etc
	install -v -m 0600 $(TOPDIR)/filesystem/passwd $(WORK)/mnt/etc
	install -v -m 0400 $(TOPDIR)/filesystem/shadow $(WORK)/mnt/etc
	install -v -m 0755 $(TOPDIR)/filesystem/rc $(WORK)/mnt/etc && \
	install -v -m 0755 $(TOPDIR)/filesystem/{setup,setup-chroot,crux} $(WORK)/mnt/usr/bin && \
	ln -s bin/busybox $(WORK)/mnt/init
	/sbin/ldconfig -r $(WORK)/mnt
	cd $(WORK)/mnt && find . | cpio -o -H newc > $(WORK)/initramfs.cpio
	touch $(WORK)/initramfs.cpio

initramfs: $(WORK)/initramfs.cpio

initramfs-clean:
	rm -rf $(WORK)/initramfs* $(WORK)/mnt

initramfs-distclean: initramfs-clean

# End of file