[8u] RFR: 8227397: Add --with-extra-asflags configure option

[Magnus Ihse Bursie]

On 2019-09-27 17:48, Severin Gehwolf wrote:
> Hi,
>
> Could I please get a review of this 8u build change backport which adds
> --with-extra-asflags to OpenJDK 8u. At Red Hat, we need to pass certain
> assembler only flags for some builds. For example "-Wa,--generate-
> missing-build-notes=yes", to assembly files only. As the build system
> is different in 8u over 11u I've re-done the patch.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8227397
> webrev: http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8227397/jdk8/01/
Looks good to me.

/Magnus
>
> Testing: Built with --with-extra-asflags=-Wa,--generate-missing-build-
> notes=yes on Linux x86_64, confirmed linux_x86_64.s gets assembled with
> the flag and only that file.
>
> I've omitted the windows portion of passing as flags to the hotspot
> build as I've no idea how. Contributions welcome if that should get
> included.
>
> Thoughts?
>
> Thanks,
> Severin
>