RFR: 8199138: Add RISC-V support to Zero

[Thomas Stüfe]

Hi Adrian, looks good to me.

Cheers, Thomas

On Mon, Apr 6, 2020, 20:11 John Paul Adrian Glaubitz <
glaubitz at physik.fu-berlin.de> wrote:

> Hello!
>
> Please review this small change which adds basic support for the riscv64
> target for Linux/Zero [1].
>
> I have reduced the complexity of the patch as some of the changes from
> the previous change set are not necessary, in particular the changes
> to config.{guess,sub}, the definition of EM_RISCV (which is already defined
> by the Linux kernel headers now provided the kernel is recent enough).
>
> Additionally, I'm leaving the change for os::get_summary_cpu_info() out
> as I would like to clean up this code a bit first - it's rather
> inconsistent
> considering whether the arch override is used for Hotspot arches only or
> also for Zero arches.
>
> Thanks,
> Adrian
>
> > [1] http://cr.openjdk.java.net/~glaubitz/8199138/webrev.02/
>
> --
>  .''`.  John Paul Adrian Glaubitz
> : :' :  Debian Developer - glaubitz at debian.org
> `. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
>   `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913
>