How current does the build jdk have to be for cross builds

[Thomas Stüfe]

Thank you Erik!

I expected that. I guess I better rebuild it for every bisect I do.

Cheers, Thomas



On Fri, Mar 31, 2023 at 3:21 PM <erik.joelsson at oracle.com> wrote:

> Hello Thomas,
>
> On 3/31/23 05:43, Thomas Stüfe wrote:
> > Hi,
> >
> > quick question, I'm doing arm crossbuilds, trying to find an errornous
> > patch with bisecting. With crossbuild, I am specifying build-jdk.
> >
> > How current does the build-jdk have to be? If the build jdk does not
> > fit the source I am trying to build, would that be immediately obvious
> > or would I get strange errors? I am gauging whether to rebuild the
> > build jdk for every bisect point.
> >
> As far as I know, we expect the BUILD_JDK to be an exact match, but in
> practice it probably works with something a bit older most of the time.
> It depends on what differences there are between the current source and
> the BUILD_JDK. I haven't tried using an out of date BUILD_JDK but I
> would imagine the errors to be strange and unpredictable. In your case,
> if you want to avoid strange surprises, letting the BUILD_JDK be rebuilt
> automatically is preferred, but if the bisect range is small, maybe it's
> worth chancing it to save build time.
>
> /Erik
>
>
>
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