JDK-8214063: OpenJDK will not build on AIX while using the xlc 13.1 compiler

[Lindenmaier, Goetz]

Hi Steve,

feel free to request the downport of this change.

For this, you must first check whether the change applies cleanly:
cd jdk/jdk; hg export -r 7384e00d5860 > 8215962.changeset  (you find the hash in the JBS)
cd jdk11u; hg import 8215962.changeset

If so, you flag the bug in JBS as jdk11u-fix-request and add a 
comment to the bug why you want to downport this. The comment
must start with "Fix Request".
See for an example
https://bugs.openjdk.java.net/browse/JDK-8215962

You will get a message once the downport is approved.
Ping me and I will push the change for you.

If the change does not apply cleanly, you must send a RFR
with the adapted webrev to the list where the change was 
originally reviewed.
You must add a link to the RFR in pipermail to the comment
in the bug.
See for example:
https://bugs.openjdk.java.net/browse/JDK-8213754

Best regards,
  Goetz.



> -----Original Message-----
> From: core-libs-dev <core-libs-dev-bounces at openjdk.java.net> On Behalf Of
> Steve Groeger
> Sent: Mittwoch, 23. Januar 2019 12:18
> To: OpenJDK Core Libs Developers <core-libs-dev at openjdk.java.net>
> Cc: Simonis, Volker <volker.simonis at sap.com>; Adam Farley8
> <adam.farley at uk.ibm.com>
> Subject: JDK-8214063: OpenJDK will not build on AIX while using the xlc 13.1
> compiler
> 
> Hi Volker,
> 
> Do you think it would be possible to get the change you committed to JDK12
> http://cr.openjdk.java.net/~simonis/webrevs/2018/8214063/
> for this issue https://bugs.openjdk.java.net/browse/JDK-8214063
> back-ported to JDK11, as JDK11 is a LTS release and it woud be good to
> have this fix?
> 
> Also, we have received reports of other issues caused by the
> -qvisibility=hidden
> when using XLC 13.1 with JDK11 on AIX.
> 
> One of these is related to :
> 
> Desktop printer feature cannot detect by following exception.
> Caused by: java.lang.UnsatisfiedLinkError:
> sun/print/CUPSPrinter.initIDs()Z
> 
> Thanks
> Steve Groeger
> IBM Runtime Technologies
> Hursley, Winchester
> Tel: (44) 1962 816911  Mobex: 279990  Mobile: 07718 517 129
> Fax (44) 1962 816800
> Lotus Notes: Steve Groeger/UK/IBM
> Internet: groeges at uk.ibm.com
> 
> Unless stated otherwise above:
> IBM United Kingdom Limited - Registered in England and Wales with number
> 741598.
> Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
> 
> 
> > Hi Adam, Ichiroh,
> >
> > this is actually exactly what I wanted to propose in the mail I was
> > just writing :)
> >
> > You may have noticed that I've renamed the bug to "8214063: [AIX]
> > Disable symbol visibility flags". For the next step which will enable
> > symbol visibility on AIX we already have the following issue "8204541:
> > Correctly support AIX xlC 13.1 symbol visibility flags" [1]. Please
> > assign yourself and use it once the issues are resolved.
> >
> > In the meantime I've tested your change and it works fine with xlC 12.
> > I've only added a reference to the JBS id in the comments. Please find
> > a webrev of the new version here:
> >
> > http://cr.openjdk.java.net/~simonis/webrevs/2018/8214063/
> >
> > I can sponsor that change once you and Ichiroh confirm that it also
> > works for you with xlC 13 and I get one more review. I've opened a new
> > thread for this on build-dev because the fix has now degenerated into
> > a pure build change:
> >
> >
> http://mail.openjdk.java.net/pipermail/build-dev/2018-
> November/024096.html
> >
> > Please answer on that new thread.
> >
> > Regards,
> > Volker
> >
> > PS: I don't think it makes too much sense investing into xlC 13.
> > You're probably aware of "JEP 347: Adopt C++14 Language Features in
> > HotSpot" [2] which will start introducing C++14 language features
> > soon. So it may be wiser to test right with the new beta of xlC 16
> > because, as far as I know, there's no chance to get C++124 support
> > into xlC 13 anyway.
> >
> > [1] https://bugs.openjdk.java.net/browse/JDK-8204541
> > [2] http://openjdk.java.net/jeps/347
> 
> 
> Unless stated otherwise above:
> IBM United Kingdom Limited - Registered in England and Wales with number
> 741598.
> Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU