/
initramfs.mk
35 lines (26 loc) · 1.16 KB
/
initramfs.mk
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################################################################################
#
# Build a kernel with an integrated initial ramdisk
# filesystem based on cpio.
#
################################################################################
ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS_ROOTFS),y)
ROOTFS_INITRAMFS_DEPENDENCIES += rootfs-cpio
endif
ROOTFS_INITRAMFS_DEPENDENCIES += $(BINARIES_DIR)/initramfs.cpio
# The generic fs infrastructure isn't very useful here.
rootfs-initramfs: $(ROOTFS_INITRAMFS_DEPENDENCIES) linux-rebuild-with-initramfs
rootfs-initramfs-show-depends:
@echo $(ROOTFS_INITRAMFS_DEPENDENCIES)
.PHONY: rootfs-initramfs rootfs-initramfs-show-depends
ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS_ROOTFS),y)
$(BINARIES_DIR)/initramfs.cpio: rootfs-cpio
ln -sf rootfs.cpio $(BINARIES_DIR)/initramfs.cpio
endif
ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS_CUSTOM),y)
$(BINARIES_DIR)/initramfs.cpio: target-finalize $(call qstrip,$(BR2_TARGET_ROOTFS_INITRAMFS_CUSTOM_CONTENTS))
$(LINUX_DIR)/usr/gen_init_cpio $(BR2_TARGET_ROOTFS_INITRAMFS_CUSTOM_CONTENTS) > $(BINARIES_DIR)/initramfs.cpio
endif
ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
TARGETS_ROOTFS += rootfs-initramfs
endif