Makefile

   1 #
   2 # initramfs/Makefile
   3 #
   4
   5 PWD = $(shell pwd)
   6
   7 include $(PWD)/../toolchain/vars.mk
   8
   9 TARGET = arm-crux-linux-gnueabi
  10 DEVICE = versatile
  11
  12 WORK = $(PWD)/work
  13 CLFS = $(PWD)/../toolchain/clfs
  14 CROSSTOOLS = $(PWD)/../toolchain/crosstools
  15
  16
  17 KERNEL_PATH = $(PWD)/../kernel/$(DEVICE)
  18 KERNEL_VERSION = $(shell grep '^KERNEL_VERSION = ' $(KERNEL_PATH)/Makefile | sed 's|KERNEL_VERSION = ||')
  19
  20 BUSYBOX_VERSION  = 1.20.2
  21 BUSYBOX_SOURCE   = http://busybox.net/downloads/busybox-$(BUSYBOX_VERSION).tar.bz2
  22
  23 .PHONY: all check-root busybox gen_init_cpio initramfs clean distclean
  24
  25 all: busybox gen_init_cpio initramfs
  26
  27 clean: busybox-clean gen_init_cpio-clean initramfs-clean
  28
  29 distclean: busybox-distclean gen_init_cpio-distclean initramfs-distclean
  30
  31 check-root:
  32         @if [ "$$UID" != "0" ]; then \
  33                 echo "You need to be root to do this."; \
  34                 echo "Now you should run 'make initramfs' as root to finish compilation or 'sudo make initramfs'."; \
  35                 exit 1; \
  36         fi
  37
  38 $(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2:
  39         wget -P $(WORK) -c http://busybox.net/downloads/busybox-$(BUSYBOX_VERSION).tar.bz2
  40
  41 $(WORK)/busybox-$(BUSYBOX_VERSION): $(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2 $(PWD)/busybox-$(BUSYBOX_VERSION).config
  42         tar -C $(WORK) -xvjf $(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2
  43         cp -v $(PWD)/busybox-$(BUSYBOX_VERSION).config $(WORK)/busybox-$(BUSYBOX_VERSION)/.config
  44         touch $(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2
  45
  46 $(WORK)/busybox-$(BUSYBOX_VERSION)/busybox: $(WORK)/busybox-$(BUSYBOX_VERSION)
  47         export PATH=$(CROSSTOOLS)/bin:$$PATH &&  \
  48         export LD_LIBRARY_PATH=$(CROSSTOOLS)/lib:$$LD_LIBRARY_PATH && \
  49         make -C $(WORK)/busybox-$(BUSYBOX_VERSION) ARCH=arm CROSS_COMPILE=$(TARGET)- && \
  50         $(TARGET)-strip $(WORK)/busybox-$(BUSYBOX_VERSION)/busybox && \
  51         touch $(WORK)/busybox-$(BUSYBOX_VERSION)/busybox
  52
  53 busybox: $(WORK)/busybox-$(BUSYBOX_VERSION)/busybox
  54
  55 busybox-clean:
  56         rm -vrf $(WORK)/busybox-$(BUSYBOX_VERSION)
  57
  58 busybox-distclean: busybox-clean
  59         rm -vf $(WORK)/busybox-$(BUSYBOX_VERSION).tar.bz2
  60
  61 $(WORK)/gen_init_cpio: $(WORK)/gen_init_cpio.c
  62         cd $(WORK) && \
  63                 $(CC) $(CFLAGS) -Wall -o gen_init_cpio gen_init_cpio.c
  64
  65 gen_init_cpio: $(WORK)/gen_init_cpio
  66
  67 gen_init_cpio-clean:
  68         rm -rf $(WORK)/gen_init_cpio
  69
  70 gen_init_cpio-distclean: gen_init_cpio-clean
  71
  72 $(WORK)/initramfs: check-root busybox $(WORK)/gen_init_cpio $(PWD)/init $(PWD)/initramfs.lst
  73         sed -e "s/#KERNEL_VERSION#/$(KERNEL_VERSION)/g; s/#BUSYBOX_VERSION#/$(BUSYBOX_VERSION)/g" \
  74                 $(PWD)/initramfs.lst > $(WORK)/initramfs.lst
  75         $(WORK)/gen_init_cpio $(WORK)/initramfs.lst > $(WORK)/initramfs
  76
  77 initramfs: $(WORK)/initramfs
  78
  79 initramfs-clean:
  80         rm -f $(WORK)/initramfs $(WORK)/initramfs.lst
  81
  82 initramfs-distclean: initramfs-clean
  83
  84 # End of file