Re: [Libunwind-devel] mincore is potentially unsafe on kernel's older than 2.6.21

[Don Maghrak]

On 7/13/2010 7:56 PM, Arun Sharma wrote:
> On Tue, Jul 13, 2010 at 5:24 PM, Don Maghrak<address@hidden>  wrote:
> > Is there a way to have configure ensure that mincore is only
> > used at linux 2.6.21 or later?
> > For now we are undefining HAVE_MINCORE in our builds but that makes
> > deployment on multiple systems difficult.
>
> A runtime check is probably too expensive. A compile time check fails
> if you compile on a new kernel and deploy on an old kernel.
agreed.
> The attached patch should allow you to turn off HAVE_MINCORE via a
> configure time flag.
That was fast! Will give it a try.
thank you!
Don
>   -Arun