RFR: 8273606: Zero: SPARC64 build fails with si_band type mismatch

[John Paul Adrian Glaubitz]

On Fri, 10 Sep 2021 16:25:34 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This is actually caught by `-Werror=format` that is enabled by default.
> 
> 
> $  sh ./configure --with-debug-level=slowdebug --with-boot-jdk=/home/shade/Install/jdk16-16.0.2-ea/ --openjdk-target=sparc64-linux-gnu --with-sysroot=/chroots/sparc64/ --with-jvm-variants=zero
> $ make images

> Apparently, it was never fixed in glibc for sparc64? We can still make a defensive cast to `long`.

Can you file a bug report to the glibc bug tracker?

> I looked at how Debian folks avoid this problem, and I think there is Debian patch that just disables `-Werror` wholesale. Right, @glaubitz? :)

Yes, that's correct. See: https://salsa.debian.org/openjdk-team/openjdk/-/blob/openjdk-16/debian/patches/hotspot-disable-werror.diff

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PR: https://git.openjdk.java.net/jdk/pull/5470