RFR(L): Remove global safepoint code

[Boris Ulasevich]

Hi Robbin,

Sorry for the long delay.
ARM32 code is good and works Ok! :)

thanks,
Boris


On Thu, Mar 19, 2020 at 3:46 PM Robbin Ehn <robbin.ehn at oracle.com> wrote:

> Hi all, please build, test and review.
>
> We removed (obsoleted) the flag ThreadLocalHandshakes in JDK 14.
> Any platform defining THREAD_LOCAL_POLL can only use per thread poll.
> Since all platforms now define THREAD_LOCAL_POLL the global poll code is
> dead.
> Let's remove it!
>
> Issue: https://bugs.openjdk.java.net/browse/JDK-8220051
> Changeset: http://cr.openjdk.java.net/~rehn/8220051/v1/webrev/index.html
>
> I have built fastdebug:
> linux-aarch64
> linux-arm32
> linux-ppc64le
> linux-s390x
> linux-x86_64-zero
> linux-x86_64 (no PCH)
> linux-x86_64 (slowdebug) (no PCH)
> linux-x86
> osx-x86_64
> windows-x86_64
> solaris-sparcv9
>
> Tested t1-5:
> linux-x86_64
> osx-x86_64
> windows-x86_64
> solaris-sparcv9
>
> Manually:
> linux-aarch64
> linux-x86_64-zero
>
> Any extra help building and testing is appreciated, especially on arm32,
> ppc64le, s390x.
>
> Thanks, Robbin
>