[8u] RFR: JDK-8253036: Support building the Zero assembler port on AArch64

[Andrew Haley]

On 17/09/2020 12:35, Aleksey Shipilev wrote:
 > On 9/17/20 12:49 PM, Aleksey Shipilev wrote:
 >> But hey, those definitions are missing even in the head JDK!
 >
 > Ha-ha. Oops. I have somewhat of the fix here:
 >     https://bugs.openjdk.java.net/browse/JDK-8253284
 >
 > ...that would have to trickle in separately.

OK. It doesn't seem right to me to enable AArch64/Zero in a update
version if we know it's incorrect, and quite nastily so. But I don't
mind if we can make sure that it gets fixed before it gets released.
GCC has all the atomic builtins we need to get this right; I don't
believe we need any platform-specific code at all.

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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