Re: [PATCH] ELF: supply userspace with available page shifts (AT_PAGE_SHIFT_LIST)
From: Florian Weimer
Date: Tue Dec 05 2023 - 04:51:52 EST
* 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