config BR2_TARGET_ROOTFS_CRAMFS bool "cramfs root filesystem" help Build a cramfs root filesystem https://github.com/npitre/cramfs-tools if BR2_TARGET_ROOTFS_CRAMFS config BR2_TARGET_ROOTFS_CRAMFS_XIP bool "Support XIP of all ELF files" help For ELF files, uncompressed and properly aligned data blocks will be automatically be mapped directly into user space whenever possible providing eXecute-In-Place (XIP) from ROM of read-only segments. Data segments mapped read-write (hence they have to be copied to RAM) may still be compressed in the cramfs image in the same file along with non compressed read-only segments. Both MMU and no-MMU systems are supported. This is particularly handy for tiny embedded systems with very tight memory constraints. The CRAMFS_MTD Kconfig option must also be enabled in a 4.15+ kernel. endif # BR2_TARGET_ROOTFS_CRAMFS