fs/iso9660/iso9660.mk

   1 ################################################################################
   2 #
   3 # Build the iso96600 root filesystem image
   4 #
   5 ################################################################################
   6
   7 #
   8 # We need to handle three cases:
   9 #
  10 #  1. The ISO9660 filesystem will really be the real root filesystem
  11 #     itself. This is when BR2_TARGET_ROOTFS_ISO9660_INITRD is
  12 #     disabled.
  13 #
  14 #  2. The ISO9660 filesystem will be a filesystem with just a kernel
  15 #     image, initrd and grub. This is when
  16 #     BR2_TARGET_ROOTFS_ISO9660_INITRD is enabled, but
  17 #     BR2_TARGET_ROOTFS_INITRAMFS is disabled.
  18 #
  19 #  3. The ISO9660 filesystem will be a filesystem with just a kernel
  20 #     image and grub. This is like (2), except that the initrd is
  21 #     built into the kernel image. This is when
  22 #     BR2_TARGET_ROOTFS_INITRAMFS is enabled (regardless of the value
  23 #     of BR2_TARGET_ROOTFS_ISO9660_INITRD).
  24
  25 ROOTFS_ISO9660_BOOT_MENU = $(call qstrip,$(BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU))
  26
  27 ROOTFS_ISO9660_DEPENDENCIES = host-cdrkit linux
  28
  29 ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
  30 ROOTFS_ISO9660_USE_INITRD = YES
  31 endif
  32
  33 ifeq ($(BR2_TARGET_ROOTFS_ISO9660_INITRD),y)
  34 ROOTFS_ISO9660_USE_INITRD = YES
  35 endif
  36
  37 ifeq ($(ROOTFS_ISO9660_USE_INITRD),YES)
  38 ROOTFS_ISO9660_TARGET_DIR = $(BUILD_DIR)/rootfs.iso9660.tmp
  39 define ROOTFS_ISO9660_CREATE_TEMPDIR
  40         $(RM) -rf $(ROOTFS_ISO9660_TARGET_DIR)
  41         mkdir -p $(ROOTFS_ISO9660_TARGET_DIR)
  42 endef
  43 else
  44 ROOTFS_ISO9660_TARGET_DIR = $(TARGET_DIR)
  45 endif
  46
  47 ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
  48 ROOTFS_ISO9660_DEPENDENCIES += grub
  49 ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
  50         $(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/menu.lst
  51 ROOTFS_ISO9660_BOOT_IMAGE = boot/grub/stage2_eltorito
  52 define ROOTFS_ISO9660_INSTALL_BOOTLOADER
  53         $(INSTALL) -D -m 0644 $(GRUB_DIR)/stage2/stage2_eltorito \
  54                 $(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/stage2_eltorito
  55 endef
  56 else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB2),y)
  57 ROOTFS_ISO9660_DEPENDENCIES += grub2
  58 ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
  59         $(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/grub.cfg
  60 ROOTFS_ISO9660_BOOT_IMAGE = boot/grub/grub-eltorito.img
  61 define ROOTFS_ISO9660_INSTALL_BOOTLOADER
  62         $(INSTALL) -D -m 0644 $(BINARIES_DIR)/grub-eltorito.img \
  63                 $(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/grub-eltorito.img
  64 endef
  65 else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_ISOLINUX),y)
  66 ROOTFS_ISO9660_DEPENDENCIES += syslinux
  67 ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
  68         $(ROOTFS_ISO9660_TARGET_DIR)/isolinux/isolinux.cfg
  69 ROOTFS_ISO9660_BOOT_IMAGE = isolinux/isolinux.bin
  70 define ROOTFS_ISO9660_INSTALL_BOOTLOADER
  71         $(INSTALL) -D -m 0644 $(BINARIES_DIR)/syslinux/* \
  72                 $(ROOTFS_ISO9660_TARGET_DIR)/isolinux/
  73         $(INSTALL) -D -m 0644 $(HOST_DIR)/usr/share/syslinux/ldlinux.c32 \
  74                 $(ROOTFS_ISO9660_TARGET_DIR)/isolinux/ldlinux.c32
  75 endef
  76 endif
  77
  78 define ROOTFS_ISO9660_PREPARATION
  79         $(INSTALL) -D -m 0644 $(ROOTFS_ISO9660_BOOT_MENU) \
  80                 $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
  81         $(SED) "s%__KERNEL_PATH__%/boot/$(LINUX_IMAGE_NAME)%" \
  82                 $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
  83         $(ROOTFS_ISO9660_INSTALL_BOOTLOADER)
  84 endef
  85
  86 ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_PREPARATION
  87
  88 # Grub splash screen disabling
  89 ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
  90 ifeq ($(BR2_TARGET_GRUB_SPLASH),)
  91 define ROOTFS_ISO9660_DISABLE_SPLASHSCREEN
  92         $(SED) '/^splashimage/d' $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
  93 endef
  94 ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_SPLASHSCREEN
  95 endif
  96 endif
  97
  98 define ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
  99         $(SED) '/__INITRD_PATH__/d'  $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
 100 endef
 101
 102 ifeq ($(ROOTFS_ISO9660_USE_INITRD),YES)
 103
 104 # Copy Grub splashscreen to temporary filesystem
 105 ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
 106 ifeq ($(BR2_TARGET_GRUB_SPLASH),y)
 107 define ROOTFS_ISO9660_INSTALL_SPLASHSCREEN
 108         $(INSTALL) -D -m 0644 $(TARGET_DIR)/boot/grub/splash.xpm.gz \
 109                 $(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/splash.xpm.gz
 110 endef
 111 ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_INSTALL_SPLASHSCREEN
 112 endif
 113 endif
 114
 115 # Copy the kernel to temporary filesystem
 116 define ROOTFS_ISO9660_COPY_KERNEL
 117         $(INSTALL) -D -m 0644 $(LINUX_IMAGE_PATH) \
 118                 $(ROOTFS_ISO9660_TARGET_DIR)/boot/$(LINUX_IMAGE_NAME)
 119 endef
 120
 121 ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_COPY_KERNEL
 122
 123 # If initramfs is used, disable loading the initrd as the rootfs is
 124 # already inside the kernel image. Otherwise, make sure a cpio is
 125 # generated and use it as the initrd.
 126 ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
 127 ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
 128 else
 129 ROOTFS_ISO9660_DEPENDENCIES += rootfs-cpio
 130 define ROOTFS_ISO9660_COPY_INITRD
 131         $(INSTALL) -D -m 0644 $(BINARIES_DIR)/rootfs.cpio$(ROOTFS_CPIO_COMPRESS_EXT) \
 132                 $(ROOTFS_ISO9660_TARGET_DIR)/boot/initrd
 133         $(SED) "s%__INITRD_PATH__%/boot/initrd%" \
 134                 $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
 135 endef
 136 ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_COPY_INITRD
 137 endif
 138
 139 else # ROOTFS_ISO9660_USE_INITRD
 140
 141 ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
 142
 143 endif # ROOTFS_ISO9660_USE_INITRD
 144
 145
 146 define ROOTFS_ISO9660_CMD
 147         $(HOST_DIR)/usr/bin/genisoimage -J -R -b $(ROOTFS_ISO9660_BOOT_IMAGE) \
 148                 -no-emul-boot -boot-load-size 4 -boot-info-table \
 149                 -o $@ $(ROOTFS_ISO9660_TARGET_DIR)
 150 endef
 151
 152 ifeq ($(BR2_TARGET_ROOTFS_ISO9660_HYBRID),y)
 153 define ROOTFS_ISO9660_GEN_HYBRID
 154         $(HOST_DIR)/usr/bin/isohybrid -t 0x96 $@
 155 endef
 156
 157 ROOTFS_ISO9660_POST_GEN_HOOKS += ROOTFS_ISO9660_GEN_HYBRID
 158 endif
 159
 160 $(eval $(call ROOTFS_TARGET,iso9660))