buildroot

################################################################################

#

# Build the iso96600 root filesystem image

#

################################################################################

​

#

# We need to handle three cases:

#

#  1. The ISO9660 filesystem will really be the real root filesystem

#     itself. This is when BR2_TARGET_ROOTFS_ISO9660_INITRD is

#     disabled.

#

#  2. The ISO9660 filesystem will be a filesystem with just a kernel

#     image, initrd and grub. This is when

#     BR2_TARGET_ROOTFS_ISO9660_INITRD is enabled, but

#     BR2_TARGET_ROOTFS_INITRAMFS is disabled.

#

#  3. The ISO9660 filesystem will be a filesystem with just a kernel

#     image and grub. This is like (2), except that the initrd is

#     built into the kernel image. This is when

#     BR2_TARGET_ROOTFS_INITRAMFS is enabled (regardless of the value

#     of BR2_TARGET_ROOTFS_ISO9660_INITRD).

​

ROOTFS_ISO9660_BOOT_MENU = $(call qstrip,$(BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU))

​

ROOTFS_ISO9660_DEPENDENCIES = host-cdrkit linux

​

ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)

ROOTFS_ISO9660_USE_INITRD = YES

endif

​

ifeq ($(BR2_TARGET_ROOTFS_ISO9660_INITRD),y)

ROOTFS_ISO9660_USE_INITRD = YES

endif

​

ifeq ($(ROOTFS_ISO9660_USE_INITRD),YES)

ROOTFS_ISO9660_TMP_TARGET_DIR = $(FS_DIR)/rootfs.iso9660.tmp

define ROOTFS_ISO9660_CREATE_TEMPDIR

    $(RM) -rf $(ROOTFS_ISO9660_TMP_TARGET_DIR)

    mkdir -p $(ROOTFS_ISO9660_TMP_TARGET_DIR)

endef

ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_CREATE_TEMPDIR

else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_TRANSPARENT_COMPRESSION),y)

ROOTFS_ISO9660_DEPENDENCIES += host-zisofs-tools

ROOTFS_ISO9660_TMP_TARGET_DIR = $(FS_DIR)/rootfs.iso9660.tmp

# This must be early, before we copy the bootloader files.

define ROOTFS_ISO9660_MKZFTREE

    $(RM) -rf $(ROOTFS_ISO9660_TMP_TARGET_DIR)

    $(HOST_DIR)/bin/mkzftree -X -z 9 -p $(PARALLEL_JOBS) \

        $(TARGET_DIR) \

        $(ROOTFS_ISO9660_TMP_TARGET_DIR)

endef

ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_MKZFTREE

ROOTFS_ISO9660_GENISOIMAGE_OPTS += -z

else

ROOTFS_ISO9660_TMP_TARGET_DIR = $(TARGET_DIR)

endif

​

ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB2),y)

ROOTFS_ISO9660_DEPENDENCIES += grub2

ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \

    $(ROOTFS_ISO9660_TMP_TARGET_DIR)/boot/grub/grub.cfg

ROOTFS_ISO9660_BOOT_IMAGE = boot/grub/grub-eltorito.img

define ROOTFS_ISO9660_INSTALL_BOOTLOADER

    $(INSTALL) -D -m 0644 $(BINARIES_DIR)/grub-eltorito.img \

        $(ROOTFS_ISO9660_TMP_TARGET_DIR)/boot/grub/grub-eltorito.img

endef

else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_ISOLINUX),y)

ROOTFS_ISO9660_DEPENDENCIES += syslinux

ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \

    $(ROOTFS_ISO9660_TMP_TARGET_DIR)/isolinux/isolinux.cfg

ROOTFS_ISO9660_BOOT_IMAGE = isolinux/isolinux.bin

define ROOTFS_ISO9660_INSTALL_BOOTLOADER

    $(INSTALL) -D -m 0644 $(BINARIES_DIR)/syslinux/* \

        $(ROOTFS_ISO9660_TMP_TARGET_DIR)/isolinux/

    $(INSTALL) -D -m 0644 $(HOST_DIR)/share/syslinux/ldlinux.c32 \

        $(ROOTFS_ISO9660_TMP_TARGET_DIR)/isolinux/ldlinux.c32

endef

endif

​

define ROOTFS_ISO9660_PREPARATION

    $(INSTALL) -D -m 0644 $(ROOTFS_ISO9660_BOOT_MENU) \

        $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)

    $(SED) "s%__KERNEL_PATH__%/boot/$(LINUX_IMAGE_NAME)%" \

        $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)

    $(ROOTFS_ISO9660_INSTALL_BOOTLOADER)

endef

​

ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_PREPARATION

​

define ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD