RFR 8202683: Minimal VM should build cleanly on 64-bit platforms

[Erik Joelsson]

Looks good to me.

Note for future, I would like it even more if we got rid of the 
pre-defined jvm.cfg altogether and just always generated it. The build 
itself shouldn't be dictating artificial limitations on build 
parameters. If we want to enforce limitations those should be explicit 
instead.

/Erik


On 2018-05-05 04:26, Aleksey Shipilev wrote:
> RFE:
>    https://bugs.openjdk.java.net/browse/JDK-8202683
>
> Fix:
>    http://cr.openjdk.java.net/~shade/8202683/webrev.01/
>
> Minimal VM is targeted to 32-bit only, but hear me out. Recent build system changes, notably
> conditional GC compilation, requires build/testing with some GCs disabled. Ultimately, we want
> minimal VM to be buildable at all times. Today, we need to cross-compile to x86_32 to verify that,
> but with this change, we can build minimal on x86_64, thus simplifying our day-to-day jobs. The
> change itself generates jvm.cfg for minimal VM properly on both bitnesses.
>
> Testing: x86_64 server/minimal builds, x86_32 server/minimal builds
>
> Thanks,
> -Aleksey
>