[cfe-users] RFC v2: Re: cacheflush.2

[Alejandro Colomar (man-pages) via cfe-users]

Hi Michael,

On 12/11/20 9:15 AM, Michael Kerrisk (man-pages) wrote:
> i Alex,
> 
> On 12/10/20 9:56 PM, Alejandro Colomar (man-pages) wrote:
>> Hi all,
>>
>> v2:
>>
>> [
>> NOTES
>>        Unless  you  need  the finer grained control that this system
>>        call provides, you probably want  to  use  the  GCC  built-in
>>        function  __builtin___clear_cache(),  which  provides  a more
>>        portable interface:
>>
>>            void __builtin___clear_cache(void *begin, void *end);
>> ]
> 
> This seems a reasonable text to me, but I think it would be helpful
> to say a little more precisely what kind of portability we are
> talking about here.
Sure.

> 
> Greater ortability across Linux architectures? Greater portability
> across platforms supported by GCC (including non-Linux) platforms?
> Something else?

'... which provides a portable interface across platforms supported by
GCC:' sounds good.

Maybe GCC devs have something more to add.

Thanks,

Alex

> 
> Thanks,
> 
> Michael
> 
> 

-- 
Alejandro Colomar
Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/
http://www.alejandro-colomar.es