[RFC 1/5] linux: Remove __stack_prot

[Florian Weimer]

* Adhemerval Zanella:

> The __stack_prot is used by Linux to make the stack executable if
> a modules requires it.  It is also marked as RELRO, which requires
> to change the segment permission to RW to update it.
>
> Also, there is no need to keep track of the flags: either the stack
> will have the default permission of the ABI or should be change to
> PROT_READ | PROT_WRITE | PROT_EXEC.  The only additional flag,
> PROT_GROWSDOWN or PROT_GROWSUP, is Linux only and can be deducted
> from _STACK_GROWS_DOWN/_STACK_GROWS_UP.
>
> Also, the check_consistency was alredy removed some time ago.

“the check_consistency [function] was”, I think.

Patch looks okay to me.

Reviewed-by: Florian Weimer <fweimer@redhat.com>

Thanks,
Florian