Re: [PATCH] ELF: supply userspace with available page shifts (AT_PAGE_SHIFT_LIST)

Florian Weimer
2023-12-05T09:51:49Z

* Alexey Dobriyan:

> +/*
> + * Page sizes available for mmap(2) encoded as 1 page shift per byte in
> + * increasing order.
> + *
> + * Thus 32-bit systems get 4 shifts, 64-bit systems get 8 shifts tops.

Couldn't you use the bits in a long instead, to indicate which shifts
are present? That's always going to be enough.

Thanks,
Florian