Re: [PATCH] configure: Improve alias attribute check

[Gavin Shan]

Hi Richard,

On 3/23/21 7:59 AM, Richard Henderson wrote:
> On 3/22/21 4:54 AM, Gavin Shan wrote:
> > It looks this issue can be avoided after "volatile" is applied to
> > @target_page. However, I'm not sure if it's the correct fix to have.
>
> Certainly not.
>
> That is the exact opposite of what we want.  We want to minimize the number of 
> reads from the variable, not maximize them.

Yes, It's something I was thinking of. "volatile" can make
@target_page visible to gcc, but maximizes the number of
reads. By the way, your patch to use "-fno-lto" worked for
me and it has been split into 3 patches by Phil. Richard,
thanks for the quick fixup :)

Thanks,
Gavin