On Tue, 17 May 2016, Szabolcs Nagy wrote: > i think even legacy software should be able to deal with 64bit off_t, > so we could avoid having two sets of filesystem apis or is 64bit-only > off_t more work to do in linux/glibc?
wordsize-64 directories generally expect 64-bit interfaces. wordsize-32 directories generally expect that there are two sets of filesystem APIs which are not aliased (at the userspace level - the versions for the generic syscall API deal with setting EOVERFLOW in userspace as needed). The "wordsize" concept is not wonderfully well-defined and could do with being split up into multiple better-defined concepts, but that's obvious something pretty tricky to get right, involving a very careful analysis of the existing code. -- Joseph S. Myers jos...@codesourcery.com
