[RFC] Add GNU_PROPERTY_1_NEEDED_THP_ON_[READ_ONLY_SEGMENTS|MALLOC]

[Adhemerval Zanella Netto]

On 17/04/26 07:27, H.J. Lu wrote:
> On Fri, Apr 17, 2026 at 5:29 PM Florian Weimer <fweimer@redhat.com> wrote:
>>
>> * H. J. Lu via Gnu-gabi:
>>
>>> 1. GNU_PROPERTY_1_NEEDED_THP_ON_READ_ONLY_SEGMENTS
>>
>>> 2. GNU_PROPERTY_1_NEEDED_THP_ON_MALLOC
>>
>> Why NEEDED?  Isn't this purely optional, and the program has to work
>> whether glibc enables THP or not?
>>
> 
> What do you prefer to call it?  Optional, desired, recommended, required?
> 


Maybe Optional or without any prepend, the property is an opt-in feature
that can not always be satisfied by the runtime (due missing kernel or
architecture support).

I am still not sure about the need of this, I discussed something similar
privately with Wilco and he raised some concerns about it (CCing him,
he might have more to add).