1config BR2_TARGET_ROOTFS_CRAMFS 2 bool "cramfs root filesystem" 3 help 4 Build a cramfs root filesystem 5 6 https://github.com/npitre/cramfs-tools 7 8if BR2_TARGET_ROOTFS_CRAMFS 9 10config BR2_TARGET_ROOTFS_CRAMFS_XIP 11 bool "Support XIP of all ELF files" 12 help 13 For ELF files, uncompressed and properly aligned data blocks 14 will be automatically be mapped directly into user space 15 whenever possible providing eXecute-In-Place (XIP) from ROM 16 of read-only segments. Data segments mapped read-write 17 (hence they have to be copied to RAM) may still be 18 compressed in the cramfs image in the same file along with 19 non compressed read-only segments. Both MMU and no-MMU 20 systems are supported. This is particularly handy for tiny 21 embedded systems with very tight memory constraints. 22 23 The CRAMFS_MTD Kconfig option must also be enabled in a 24 4.15+ kernel. 25 26endif # BR2_TARGET_ROOTFS_CRAMFS 27