RFR: 8199138: Add RISC-V support to Zero

[John Paul Adrian Glaubitz]

On 03/19/2018 05:19 AM, Edward Nevill wrote:
> Interestingly, there is no implementation of atomic_copy64 for ARM32. I guess it just relies on the compiler generating LDRD/STRD correctly and  doesn't support earlier ARM32 archs. I'll do a bit of investigation.

I am planning to add arch-specific implementations for m68k and sh in the near
future. From the current build logs in Debian, it seems that the JVM is actually
hanging on these architectures from time to time and I think this could probably
be related to atomic_copy64 actually not being 100% atomic. I already added the
one for PowerPCSPE.

It's also interesting that there is no implementation for 32-Bit MIPS either.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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