PR_SVE_SET_VL_ONEXEC
# define PR_SVE_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */
# define PR_SVE_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */
# define PR_SVE_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */