Subject: Re: GCC bug ? Re: [PATCH v2 10/10] powerpc/32s: Implement Kernel Userspace Access Protection

From: Segher Boessenkool <[email-masked]>
Date: Wed, 22 Jan 2020 07:18:54 -0600

Hi!

On Wed, Jan 22, 2020 at 07:57:15AM +0100, Christophe Leroy wrote:
> GCC doc also says:
> 
> "if you use it in an inlined function and pass an argument of the 
> function as the argument to the built-in, GCC never returns 1 when you 
> call the inline function with a string constant"
> 
> Does GCC considers (void*)0 as a string constant ?

No, because it isn't (it's a pointer, not an array of characters).

Segher