8a26adddde
In case we're using an initrd, we create an empty "root" directory that
will contain only the bootloader stuff, not the actual root filesystem,
because it is in an initrd (standalone or initramfs).
We have to ensure that the directory is empty before assembling the
filesystem (to avoid any file lingering from a previous run, like the
sequence "make; make"). So we first remove it before we create it, so
that on each build (especially not-from-scratch builds) we get the exact
expected content without any leftover.
However, the macro responsible for that, although defined since 7080eef9,
was never called.
Fix that by registering it as a pre-gen hook.
Note: the directory need not be created, as there are quite a few
"install -D" commands that ensure it is created. Yet, we prefer to
create it explicitly to avoid any confusion.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
162 lines
5.3 KiB
Makefile
162 lines
5.3 KiB
Makefile
################################################################################
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#
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# Build the iso96600 root filesystem image
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#
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################################################################################
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#
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# We need to handle three cases:
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#
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# 1. The ISO9660 filesystem will really be the real root filesystem
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# itself. This is when BR2_TARGET_ROOTFS_ISO9660_INITRD is
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# disabled.
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#
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# 2. The ISO9660 filesystem will be a filesystem with just a kernel
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# image, initrd and grub. This is when
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# BR2_TARGET_ROOTFS_ISO9660_INITRD is enabled, but
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# BR2_TARGET_ROOTFS_INITRAMFS is disabled.
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#
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# 3. The ISO9660 filesystem will be a filesystem with just a kernel
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# image and grub. This is like (2), except that the initrd is
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# built into the kernel image. This is when
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# BR2_TARGET_ROOTFS_INITRAMFS is enabled (regardless of the value
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# of BR2_TARGET_ROOTFS_ISO9660_INITRD).
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ROOTFS_ISO9660_BOOT_MENU = $(call qstrip,$(BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU))
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ROOTFS_ISO9660_DEPENDENCIES = host-cdrkit linux
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ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
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ROOTFS_ISO9660_USE_INITRD = YES
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endif
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ifeq ($(BR2_TARGET_ROOTFS_ISO9660_INITRD),y)
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ROOTFS_ISO9660_USE_INITRD = YES
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endif
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ifeq ($(ROOTFS_ISO9660_USE_INITRD),YES)
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ROOTFS_ISO9660_TARGET_DIR = $(BUILD_DIR)/rootfs.iso9660.tmp
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define ROOTFS_ISO9660_CREATE_TEMPDIR
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$(RM) -rf $(ROOTFS_ISO9660_TARGET_DIR)
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mkdir -p $(ROOTFS_ISO9660_TARGET_DIR)
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endef
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ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_CREATE_TEMPDIR
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else
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ROOTFS_ISO9660_TARGET_DIR = $(TARGET_DIR)
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endif
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ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
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ROOTFS_ISO9660_DEPENDENCIES += grub
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ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
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$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/menu.lst
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ROOTFS_ISO9660_BOOT_IMAGE = boot/grub/stage2_eltorito
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define ROOTFS_ISO9660_INSTALL_BOOTLOADER
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$(INSTALL) -D -m 0644 $(GRUB_DIR)/stage2/stage2_eltorito \
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$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/stage2_eltorito
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endef
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else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB2),y)
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ROOTFS_ISO9660_DEPENDENCIES += grub2
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ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
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$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/grub.cfg
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ROOTFS_ISO9660_BOOT_IMAGE = boot/grub/grub-eltorito.img
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define ROOTFS_ISO9660_INSTALL_BOOTLOADER
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$(INSTALL) -D -m 0644 $(BINARIES_DIR)/grub-eltorito.img \
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$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/grub-eltorito.img
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endef
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else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_ISOLINUX),y)
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ROOTFS_ISO9660_DEPENDENCIES += syslinux
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ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
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$(ROOTFS_ISO9660_TARGET_DIR)/isolinux/isolinux.cfg
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ROOTFS_ISO9660_BOOT_IMAGE = isolinux/isolinux.bin
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define ROOTFS_ISO9660_INSTALL_BOOTLOADER
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$(INSTALL) -D -m 0644 $(BINARIES_DIR)/syslinux/* \
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$(ROOTFS_ISO9660_TARGET_DIR)/isolinux/
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$(INSTALL) -D -m 0644 $(HOST_DIR)/share/syslinux/ldlinux.c32 \
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$(ROOTFS_ISO9660_TARGET_DIR)/isolinux/ldlinux.c32
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endef
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endif
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define ROOTFS_ISO9660_PREPARATION
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$(INSTALL) -D -m 0644 $(ROOTFS_ISO9660_BOOT_MENU) \
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$(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
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$(SED) "s%__KERNEL_PATH__%/boot/$(LINUX_IMAGE_NAME)%" \
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$(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
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$(ROOTFS_ISO9660_INSTALL_BOOTLOADER)
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endef
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ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_PREPARATION
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# Grub splash screen disabling
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ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
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ifeq ($(BR2_TARGET_GRUB_SPLASH),)
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define ROOTFS_ISO9660_DISABLE_SPLASHSCREEN
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$(SED) '/^splashimage/d' $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
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endef
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ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_SPLASHSCREEN
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endif
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endif
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define ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
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$(SED) '/__INITRD_PATH__/d' $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
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endef
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ifeq ($(ROOTFS_ISO9660_USE_INITRD),YES)
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# Copy Grub splashscreen to temporary filesystem
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ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
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ifeq ($(BR2_TARGET_GRUB_SPLASH),y)
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define ROOTFS_ISO9660_INSTALL_SPLASHSCREEN
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$(INSTALL) -D -m 0644 $(TARGET_DIR)/boot/grub/splash.xpm.gz \
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$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/splash.xpm.gz
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endef
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ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_INSTALL_SPLASHSCREEN
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endif
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endif
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# Copy the kernel to temporary filesystem
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define ROOTFS_ISO9660_COPY_KERNEL
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$(INSTALL) -D -m 0644 $(LINUX_IMAGE_PATH) \
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$(ROOTFS_ISO9660_TARGET_DIR)/boot/$(LINUX_IMAGE_NAME)
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endef
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ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_COPY_KERNEL
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# If initramfs is used, disable loading the initrd as the rootfs is
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# already inside the kernel image. Otherwise, make sure a cpio is
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# generated and use it as the initrd.
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ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
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ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
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else
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ROOTFS_ISO9660_DEPENDENCIES += rootfs-cpio
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define ROOTFS_ISO9660_COPY_INITRD
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$(INSTALL) -D -m 0644 $(BINARIES_DIR)/rootfs.cpio$(ROOTFS_CPIO_COMPRESS_EXT) \
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$(ROOTFS_ISO9660_TARGET_DIR)/boot/initrd
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$(SED) "s%__INITRD_PATH__%/boot/initrd%" \
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$(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
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endef
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ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_COPY_INITRD
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endif
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else # ROOTFS_ISO9660_USE_INITRD
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ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
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endif # ROOTFS_ISO9660_USE_INITRD
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define ROOTFS_ISO9660_CMD
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$(HOST_DIR)/bin/genisoimage -J -R -b $(ROOTFS_ISO9660_BOOT_IMAGE) \
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-no-emul-boot -boot-load-size 4 -boot-info-table \
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-o $@ $(ROOTFS_ISO9660_TARGET_DIR)
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endef
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ifeq ($(BR2_TARGET_ROOTFS_ISO9660_HYBRID),y)
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define ROOTFS_ISO9660_GEN_HYBRID
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$(HOST_DIR)/bin/isohybrid -t 0x96 $@
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endef
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ROOTFS_ISO9660_POST_GEN_HOOKS += ROOTFS_ISO9660_GEN_HYBRID
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endif
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$(eval $(call ROOTFS_TARGET,iso9660))
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