usr/Makefile

   1
   2 obj-y := initramfs_data.o
   3
   4 host-progs  := gen_init_cpio
   5
   6 clean-files := initramfs_data.cpio.gz
   7
   8 # initramfs_data.o contains the initramfs_data.cpio.gz image.
   9 # The image is included using .incbin, a dependency which is not
  10 # tracked automatically.
  11 $(obj)/initramfs_data.o: $(obj)/initramfs_data.cpio.gz FORCE
  12
  13 # initramfs-y are the programs which will be copied into the CPIO
  14 # archive. Currently, the filenames are hardcoded in gen_init_cpio,
  15 # but we need the information for the build as well, so it's duplicated
  16 # here.
  17
  18 # Commented out for now
  19 # initramfs-y := $(obj)/root/hello
  20
  21 quiet_cmd_cpio = CPIO    $@
  22       cmd_cpio = ./$< > $@
  23
  24 $(obj)/initramfs_data.cpio: $(obj)/gen_init_cpio $(initramfs-y) FORCE
  25         $(call if_changed,cpio)
  26
  27 targets += initramfs_data.cpio
  28
  29 $(obj)/initramfs_data.cpio.gz: $(obj)/initramfs_data.cpio FORCE
  30         $(call if_changed,gzip)
  31
  32 targets += initramfs_data.cpio.gz
  33