:riscv :unix :elf :linux :relocatable-heap :64-bit :64-bit-registers :gencgc :stack-allocatable-closures :stack-allocatable-vectors :stack-allocatable-lists :stack-allocatable-fixed-objects :linkage-table :little-endian :os-provides-dlopen :os-provides-dladdr :os-provides-putwc :os-provides-blksize-t :os-provides-suseconds-t :os-provides-getprotoby-r :os-provides-poll