Re: make PROT_WRITE imply PROT_READ

[Ulrich Drepper]

On 6/29/06, Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote:
> the thing is.. you can say EXACTLY the same about PROT_EXEC.. not all
> processors support enforcing that.. so should we just always imply
> PROT_EXEC as well?

There is a fundamental difference: not setting PROT_EXEC has no
negative side effects.  You might be able to execute code and it just
works.

With PROT_READ this is not the case, there _are_ side effects which are visible.
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