PR_SET_TAGGED_ADDR_CTRL(2const) PR_SET_TAGGED_ADDR_CTRL(2const) PR_SET_TAGGED_ADDR_CTRL - (libc -lc) #include /* PR_* */ #include int prctl(PR_SET_TAGGED_ADDR_CTRL, long mode, 0L, 0L, 0L); ( 56--63 ). support : 0L . PR_TAGGED_ADDR_ENABLE . mode . prctl(PR_SET_TAGGED_ADDR_CTRL, 0L, 0L, 0L, 0L) EINVAL . : o brk(2) mmap(2) shmat(2) shmdt(2) new_address mremap(2). ( 5.6 . .) o ` ' void * prctl() ioctl(2) setsockopt(2) ( setsockopt(2) ). . . fork(2) clone(2). execve(2) 0 ( / ). 0. -1 errno . EINVAL mode . EINVAL /proc/ sys/abi/tagged_addr_disabled. /proc/sys/abi/tagged_addr_disabled . arm64 . 5.4 (arm64). . PR_SET_TAGGED_ADDR_CTRL . . . prctl(2) PR_SET_TAGGED_ADDR_CTRL(2const) Documentation/arm64/tagged-address-abi.rst. 3 . . : . 6.18 8 2026 PR_SET_TAGGED_ADDR_CTRL(2const)