target/initramfs/initramfs.mk

   1 #############################################################
   2 #
   3 # Make a initramfs_list file to be used by gen_init_cpio
   4 # gen_init_cpio is part of the 2.6 linux kernels to build an
   5 # initial ramdisk filesystem based on cpio
   6 #
   7 #############################################################
   8
   9 ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
  10 INITRAMFS_TARGET:=$(IMAGE).initramfs_list
  11 else
  12 INITRAMFS_TARGET:= #nothing
  13 endif
  14
  15 $(INITRAMFS_TARGET) initramfs: host-fakeroot makedevs
  16         rm -f $(TARGET_DIR)/init
  17         ln -s sbin/init $(TARGET_DIR)/init
  18         -find $(TARGET_DIR) -type f -perm +111 | xargs $(STRIPCMD) 2>/dev/null || true
  19 ifneq ($(BR2_HAVE_MANPAGES),y)
  20         rm -rf $(TARGET_DIR)/usr/share/man
  21 endif
  22 ifneq ($(BR2_HAVE_INFOPAGES),y)
  23         rm -rf $(TARGET_DIR)/usr/share/info
  24 endif
  25         $(if $(TARGET_LDCONFIG),test ! -x $(TARGET_LDCONFIG) && true || $(TARGET_LDCONFIG) -r $(TARGET_DIR) 2>/dev/null)
  26         # Use fakeroot to pretend all target binaries are owned by root
  27         rm -f $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
  28         touch $(PROJECT_BUILD_DIR)/.fakeroot.00000
  29         cat $(PROJECT_BUILD_DIR)/.fakeroot* > $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
  30         echo "chown -R 0:0 $(TARGET_DIR)" >> $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
  31         # Use fakeroot to pretend to create all needed device nodes
  32         echo "$(STAGING_DIR)/bin/makedevs -d $(TARGET_DEVICE_TABLE) $(TARGET_DIR)" \
  33                 >> $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
  34         # Use fakeroot so gen_initramfs_list.sh believes the previous fakery
  35         echo "$(CONFIG_SHELL) target/initramfs/gen_initramfs_list.sh -u 0 -g 0 $(TARGET_DIR) > $(INITRAMFS_TARGET)" \
  36                 >> $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
  37         chmod a+x $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
  38         $(STAGING_DIR)/usr/bin/fakeroot -- $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
  39         -rm -f $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
  40
  41 initramfs-source:
  42
  43 initramfs-clean:
  44 ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
  45         -rm -f $(INITRAMFS_TARGET)
  46 endif
  47 initramfs-dirclean:
  48
  49