Re: [PATCH v4 3/3] csu: Implement and use _dl_early_allocate during static startup

[Florian Weimer <fweimer@redhat.com>]

* Adhemerval Zanella:

> The idea is to allow __mmap64 use the mmap64_call and have the syscall
> logic in one place.  Something like:
>
> void *
> __mmap64 (void *addr, size_t len, int prot, int flags, int fd, off64_t offset)
> {
>   MMAP_CHECK_PAGE_UNIT ();
>
>   if (offset & MMAP_OFF_MASK)
>     return (void *) INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
>
>   MMAP_PREPARE (addr, len, prot, flags, fd, offset);
>   return mmap64_call (addr, len, prot, flags, fd, offset);
> }

With this, a definition of mmap64_call still needs a working definition
of MMAP2_PAGE_UNIT for mmap2 targets, I think.

Thanks,
Florian