RFR: 8230878: ZGC: Use thread_local instead of __thread

[Kim Barrett]

> On Sep 12, 2019, at 2:54 PM, Per Liden <per.liden at oracle.com> wrote:
> 
> On 9/12/19 2:53 AM, Kim Barrett wrote:
>>> On Sep 11, 2019, at 6:59 PM, Kim Barrett <kim.barrett at oracle.com> wrote:
>>> 
>>>> On Sep 11, 2019, at 4:48 PM, Per Liden <per.liden at oracle.com> wrote:
>>>> 
>>>> We're currently using the gcc specific __thread syntax for thread local data. We should make those declarations compiler agnostic.
>>>> 
>>>> This patch depends on the proposal to rename THREAD_LOCAL_DECL to thread_local (JDK-8230877), which is currently out for review on hotspot-dev.
>>>> 
>>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8230878
>>>> Webrev: http://cr.openjdk.java.net/~pliden/8230878/webrev.0
>>>> 
>>>> /Per
>>> 
>>> Looks good.
>> Retracting that, because of 8230877 discussion.
> 
> Updated webrev, using THREAD_LOCAL, as discussed in the JDK-8230877 review thread.
> 
> http://cr.openjdk.java.net/~pliden/8230878/webrev.1
> 
> /Per

Looks good.