[aarch64-port-dev ] RFR: 8195685: AArch64: AArch64 cannot build with JDK-8174962

[Ningsheng Jian]

Hi Andrew,

I can apply your patch cleanly to jdk10 except for some warnings about
tabs found instead of spaces. I also launched a JTreg test for your
patch, but one new failure found:
test/hotspot/jtreg/gtest/GTestWrapper.java. Details updated in JBS.
Could you please take a look?

Thanks,
Ningsheng

On 20 January 2018 at 02:24, Andrew Dinn <adinn at redhat.com> wrote:
> The following critical patch fixes 8195685 for the latest jdkdev/jdk
> tree and also jdkdev/jdk10, making it possible to run any JVM built form
> them on AArch64
>
> issue: https://bugs.openjdk.java.net/browse/JDK-8195685
> webrev: http://cr.openjdk.java.net/~adinn/8195685/webrev
>
> The patch applies cleanly to jdk10 and really needs to be pushed in
> before it is frozen as it is a complete show-stopper for the AArch64 port.
>
> Quick reviews would be welcome.
>
> What is essentially the same patch is also needed to fix the jdk9 tree
> that was used to build Oracle's 9.0.4. Here is the alternative jdk9
> webrev needed to allow for different src tree layout.
>
> jdk9u webrev: http://cr.openjdk.java.net/~adinn/8195685.jdk9
>
> Note that the jdk9u patch is currently against the same issue as the
> jdkdev patch. I don't know what to do about the official backport
> process for this. Whatever need to be done is it possible to expedite
> any admin process for backporting? Red Hat need this fix to get our
> Fedora jdk9 AArch64 release out the door.
>
> Testing:
> The patch allows aarch64 to run a variety of simple programs where
> previously it crashed almost immediately. It is essentially the same
> code as was added to Red Hat's latest released jdk8 AArch64 build.
>
> regards,
>
>
> Andrew Dinn
> -----------
> Senior Principal Software Engineer
> Red Hat UK Ltd
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