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List:       openjdk-2d-dev
Subject:    Re: [OpenJDK 2D-Dev] RFR 8195615 : libsplashscreen linux ppc64le build error after libpng update - w
From:       Phil Race <philip.race () oracle ! com>
Date:       2018-07-30 21:53:37
Message-ID: 375858af-0d82-7062-fa80-45bcb50d057c () oracle ! com
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Was this reported upstream ? Was it fixed in some way there ?

I'm upgrading libpng again in JDK 11 and it appears this change will 
regress when I push
http://cr.openjdk.java.net/~prr/8208353/src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h.udiff.html


because it is not in upstream .. but perhaps it was resolved there in 
some other way ?

-phil.

On 01/18/2018 01:28 AM, Doerr, Martin wrote:
> 
> Hi Matthias,
> 
> thanks for fixing. Looks good.
> 
> Reviewed and pushed to jdk10.
> 
> Best regards,
> 
> Martin
> 
> *From:*Baesken, Matthias
> *Sent:* Donnerstag, 18. Januar 2018 07:53
> *To:* Phil Race <philip.race@oracle.com>; 2d-dev@openjdk.java.net
> *Cc:* Doerr, Martin <martin.doerr@sap.com>; Simonis, Volker 
> <volker.simonis@sap.com>; Lindenmaier, Goetz <goetz.lindenmaier@sap.com>
> *Subject:* RE: RFR 8195615 : libsplashscreen linux ppc64le build error 
> after libpng update - was : RE: jdk-hs ppc64le build error, probably 
> related to libpng update
> 
> Thanks, do I need another review ?
> 
> ( Here I found the names of the libpng authors + current maintainer :
> 
> http://www.libpng.org/pub/png/libpng.html
> 
> )
> 
> Best regards, Matthias
> 
> *From:*Phil Race [mailto:philip.race@oracle.com]
> *Sent:* Mittwoch, 17. Januar 2018 22:57
> *To:* Baesken, Matthias <matthias.baesken@sap.com 
> <mailto:matthias.baesken@sap.com>>; 2d-dev@openjdk.java.net 
> <mailto:2d-dev@openjdk.java.net>
> *Cc:* Doerr, Martin <martin.doerr@sap.com 
> <mailto:martin.doerr@sap.com>>; Simonis, Volker 
> <volker.simonis@sap.com <mailto:volker.simonis@sap.com>>
> *Subject:* Re: RFR 8195615 : libsplashscreen linux ppc64le build error 
> after libpng update - was : RE: jdk-hs ppc64le build error, probably 
> related to libpng update
> 
> This looks fine to me.
> 
> Martin asked (a while ago) if I knew where to report this upstream.
> 
> I can only suggest what I find via search as being the libpng bug 
> tracker :
> https://sourceforge.net/p/libpng/bugs/
> 
> -phil
> 
> On 01/17/2018 06:45 AM, Baesken, Matthias wrote:
> 
> Hello I created a  bug + webrev  for  the  png /  libsplashscreen 
> build  issue seen on linux ppc64le .
> 
> The error because of undefined png_init_filter_functions_vsx  is  :
> 
> /open_jdk/jdk_2_build/linuxppc64le/support/native/java.desktop/libsplashscreen/pngrutil.o:
>  In function `png_init_filter_functions':
> /open_jdk/jdk_2/jdk/src/java.desktop/share/native/libsplashscreen/libpng/pngrutil.c:4134:
>  undefined reference to png_init_filter_functions_vsx'
> 
> The issue has been observed on a SLES12 SP1 ppc64le build machine
> with "gcc version 4.8.5 (SUSE Linux)" .
> 
> Please review .
> 
> Bug :
> 
> https://bugs.openjdk.java.net/browse/JDK-8195615
> 
> Webrev :
> 
> http://cr.openjdk.java.net/~mbaesken/webrevs/8195615/
> <http://cr.openjdk.java.net/%7Embaesken/webrevs/8195615/>
> 
> Thanks, Matthias
> 
> *From:*Philip Race [mailto:philip.race@oracle.com]
> *Sent:* Donnerstag, 28. Dezember 2017 18:09
> *To:* Baesken, Matthias <matthias.baesken@sap.com>
> <mailto:matthias.baesken@sap.com>
> *Cc:* 2d-dev@openjdk.java.net <mailto:2d-dev@openjdk.java.net>;
> Doerr, Martin <martin.doerr@sap.com>
> <mailto:martin.doerr@sap.com>; Simonis, Volker
> <volker.simonis@sap.com> <mailto:volker.simonis@sap.com>
> *Subject:* Re: jdk-hs ppc64le build error, probably related to
> libpng update
> 
> This all sounds fine to me.
> Definitely we should report this upstream to see what they say but
> clearly we aren't bound to wait for an answer from there since this is
> a build breakage for PPC. If someone upstream
> comes back with a better answer we can update the fix.
> 
> I think this png update will get backported to 8u at some point ..
> the PPC port is supported on 8u, isn't it ? So we'll want to make
> sure we have the fix before we do the backport.
> 
> -phil.
> 
> On 12/28/17, 5:07 AM, Baesken, Matthias wrote:
> 
> Hi Phil,  I think your idea to guard with
> 
> #ifdef PNG_POWERPC_VSX_API_SUPPORTED
> 
> Is fine, should I prepare a webrev   using this guard ?
> 
> * Wrapping in that check might be OK (for
> PNG_POWERPC_VSX_API_SUPPORTED) but you'll want to report
> this upstream.
> 
> Yes it is a good idea to report this upstream as well  at libpng.
> 
> Best regards, Matthias
> 
> *From:*Phil Race [mailto:philip.race@oracle.com]
> *Sent:* Freitag, 22. Dezember 2017 19:08
> *To:* Baesken, Matthias <matthias.baesken@sap.com>
> <mailto:matthias.baesken@sap.com>; 2d-dev@openjdk.java.net
> <mailto:2d-dev@openjdk.java.net>
> *Cc:* Doerr, Martin <martin.doerr@sap.com>
> <mailto:martin.doerr@sap.com>; Simonis, Volker
> <volker.simonis@sap.com> <mailto:volker.simonis@sap.com>
> *Subject:* Re: jdk-hs ppc64le build error, probably related to
> libpng update
> 
> I expect that will fix it but I wonder if the problem is that
> all of this needs
> to be guarded by checking :-
> 
> #ifdef PNG_POWERPC_VSX_API_SUPPORTED
> 
> It looks to me configure would have set that if it had been
> run on PPC AND
> you have passed --enable-powerpc-vsx to configure
> 
> But of course I did not.
> 
> And someone can set it unsupported anyway.
> 
> So this seems like a libpng bug.
> 
> Wrapping in that check might be OK (for
> PNG_POWERPC_VSX_API_SUPPORTED) but
> you'll want to report this upstream.
> 
> I have no intention of pulling in the accelerated code .. even
> for intel ... this
> library is used only for splashscreen.
> 
> -phil.
> 
> 
> 
> On 12/21/2017 07:13 AM, Baesken, Matthias wrote:
> 
> > Do  you have  a version of libpng  available that contains  the
> missing function png_init_filter_functions_vsx  ?
> 
> > Or do you have an idea where it should come from (I cannot find
> it in the main libpng sources).
> 
> > To fix the build, we could probably disable  the part bringing
> in png_init_filter_functions_vsx   in
> png_init_filter_functions_vsx  .
> 
> Hello, small update -  here is a fix that  disables the
> libpng  vsx optimizations  on ppc64  (and fixes the build
> issue).
> 
> Should I prepare a webrev ?  Or how to get  a ppc64 le  /
> be    png_init_filter_functions_vsx implementation ?
> 
> Best regards, Matthias
> 
> -----------------------
> 
> diff -r d55bee3727de
> src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h
> 
> ---
> a/src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h
> Tue Dec 19 17:31:53 2017 -0500
> 
> +++
> b/src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h
> Wed Dec 20 17:16:01 2017 +0100
> 
> @@ -220,12 +220,15 @@
> 
> #  endif
> 
> #endif
> 
> +/* for now avoid the ppc64 vsx optimizations */
> 
> #ifndef PNG_POWERPC_VSX_OPT
> 
> -#  if defined(__PPC64__) && defined(__ALTIVEC__) &&
> defined(__VSX__)
> 
> -# define PNG_POWERPC_VSX_OPT 2
> 
> -#  else
> 
> +/*
> 
> + * #  if defined(__PPC64__) && defined(__ALTIVEC__) &&
> defined(__VSX__)
> 
> + * # define PNG_POWERPC_VSX_OPT 2
> 
> + * #  else
> 
> + */
> 
> #     define PNG_POWERPC_VSX_OPT 0
> 
> -#  endif
> 
> +/* #  endif */
> 
> #endif
> 
> #ifndef PNG_INTEL_SSE_OPT
> 
> -----------------------
> 
> *From:*Baesken, Matthias
> *Sent:* Mittwoch, 20. Dezember 2017 13:04
> *To:* Phil Race (philip.race@oracle.com
> <mailto:philip.race@oracle.com>) <philip.race@oracle.com>
> <mailto:philip.race@oracle.com>
> *Cc:* Doerr, Martin <martin.doerr@sap.com>
> <mailto:martin.doerr@sap.com>; Simonis, Volker
> <volker.simonis@sap.com> <mailto:volker.simonis@sap.com>;
> 2d-dev@openjdk.java.net <mailto:2d-dev@openjdk.java.net>
> *Subject:* jdk-hs ppc64le build error, probably related to
> libpng update
> 
> Hi Phil, it looks like  the recent  png lib change
> 
> 8183960: Upgrade to libpng 1.6.34
> 
> http://hg.openjdk.java.net/jdk/hs/rev/791d551bcdb8
> 
> +#if PNG_POWERPC_VSX_OPT > 0
> 
> +#  define PNG_FILTER_OPTIMIZATIONS
> png_init_filter_functions_vsx
> 
> +#  define PNG_POWERPC_VSX_IMPLEMENTATION 1
> 
> +#endif
> 
> Causes  build errors  in  our  linuxppc64le  openjdk 
> jdk-hs (fast)dbg  build .
> 
> We get  this linker error :
> 
> pngrutil.c:(.text+0x4824): undefined reference to
> `png_init_filter_functions_vsx'
> 
> Do  you have  a version of libpng  available that
> contains  the missing function
> png_init_filter_functions_vsx  ?
> 
> Or do you have an idea where it should come from (I cannot
> find it in the main libpng sources).
> 
> To fix the build, we could probably disable  the part
> bringing in png_init_filter_functions_vsx   in
> png_init_filter_functions_vsx  .
> 
> Thanks, Matthias
> 
> Error message :
> 
> * /hs/support/native/java.desktop/libsplashscreen/pngrutil.o:
> In function `png_read_filter_row':
> * pngrutil.c:(.text+0x4824): undefined reference to
> `png_init_filter_functions_vsx'
> * collect2: error: ld returned 1 exit status
> * Awt2dLibraries.gmk:928: recipe for target
> '/hs/support/modules_libs/java.desktop/libsplashscreen.so'
> failed
> 


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    Was this reported upstream ? Was it fixed in some way there ?<br>
    <br>
    I'm upgrading libpng again in JDK 11 and it appears this change will
    regress when I push <br>
<a class="moz-txt-link-freetext" \
href="http://cr.openjdk.java.net/~prr/8208353/src/java.desktop/share/native/libsplashs \
creen/libpng/pngpriv.h.udiff.html">http://cr.openjdk.java.net/~prr/8208353/src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h.udiff.html</a><br>
  <br>
    because it is not in upstream .. but perhaps it was resolved there
    in some other way ?<br>
    <br>
    -phil.<br>
    <br>
    <div class="moz-cite-prefix">On 01/18/2018 01:28 AM, Doerr, Martin
      wrote:<br>
    </div>
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      <div class="WordSection1">
        <p class="MsoNormal"><span style="color:windowtext">Hi \
                Matthias,<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" lang="EN-US">thanks
            for fixing. Looks good.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" lang="EN-US">Reviewed
            and pushed to jdk10.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" lang="EN-US"><o:p> \
                </o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" lang="EN-US">Best
            regards,<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" \
                lang="EN-US">Martin<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" lang="EN-US"><o:p> \
</o:p></span></p>  <p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
        <div>
          <div style="border:none;border-top:solid #E1E1E1
            1.0pt;padding:3.0pt 0cm 0cm 0cm">
            <p class="MsoNormal"><b><span
                  style="color:windowtext;mso-fareast-language:DE"
                  lang="EN-US">From:</span></b><span
                style="color:windowtext;mso-fareast-language:DE"
                lang="EN-US"> Baesken, Matthias
                <br>
                <b>Sent:</b> Donnerstag, 18. Januar 2018 07:53<br>
                <b>To:</b> Phil Race <a class="moz-txt-link-rfc2396E" \
                href="mailto:philip.race@oracle.com">&lt;philip.race@oracle.com&gt;</a>;
                
                <a class="moz-txt-link-abbreviated" \
                href="mailto:2d-dev@openjdk.java.net">2d-dev@openjdk.java.net</a><br>
                <b>Cc:</b> Doerr, Martin <a class="moz-txt-link-rfc2396E" \
                href="mailto:martin.doerr@sap.com">&lt;martin.doerr@sap.com&gt;</a>;
                Simonis, Volker <a class="moz-txt-link-rfc2396E" \
                href="mailto:volker.simonis@sap.com">&lt;volker.simonis@sap.com&gt;</a>;
                
                Lindenmaier, Goetz <a class="moz-txt-link-rfc2396E" \
href="mailto:goetz.lindenmaier@sap.com">&lt;goetz.lindenmaier@sap.com&gt;</a><br>  \
<b>Subject:</b> RE: RFR 8195615 : libsplashscreen linux  ppc64le build error after \
libpng update - was : RE:  jdk-hs ppc64le build error, probably related to libpng
                update<o:p></o:p></span></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal"><span lang="EN-US">Thanks, do I need
            another review ?<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" lang="EN-US"><o:p> \
                </o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" lang="EN-US"> (
            Here I found the names of the libpng authors + current
            maintainer :<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext" lang="EN-US"><o:p> \
</o:p></span></p>  <p class="MsoNormal"><span style="color:windowtext"><a
              href="http://www.libpng.org/pub/png/libpng.html"
              moz-do-not-send="true">http://www.libpng.org/pub/png/libpng.html</a></span><o:p></o:p></p>
  <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">)<span style="color:windowtext"><o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext">Best
            regards, Matthias<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div style="border:none;border-left:solid blue 1.5pt;padding:0cm
          0cm 0cm 4.0pt">
          <div>
            <div style="border:none;border-top:solid #E1E1E1
              1.0pt;padding:3.0pt 0cm 0cm 0cm">
              <p class="MsoNormal"><b><span
                    style="color:windowtext;mso-fareast-language:DE"
                    lang="EN-US">From:</span></b><span
                  style="color:windowtext;mso-fareast-language:DE"
                  lang="EN-US"> Phil Race [<a
                    href="mailto:philip.race@oracle.com"
                    moz-do-not-send="true">mailto:philip.race@oracle.com</a>]
                  <br>
                  <b>Sent:</b> Mittwoch, 17. Januar 2018 22:57<br>
                  <b>To:</b> Baesken, Matthias &lt;<a
                    href="mailto:matthias.baesken@sap.com"
                    moz-do-not-send="true">matthias.baesken@sap.com</a>&gt;;
                  <a href="mailto:2d-dev@openjdk.java.net"
                    moz-do-not-send="true">2d-dev@openjdk.java.net</a><br>
                  <b>Cc:</b> Doerr, Martin &lt;<a
                    href="mailto:martin.doerr@sap.com"
                    moz-do-not-send="true">martin.doerr@sap.com</a>&gt;;
                  Simonis, Volker &lt;<a
                    href="mailto:volker.simonis@sap.com"
                    moz-do-not-send="true">volker.simonis@sap.com</a>&gt;<br>
                  <b>Subject:</b> Re: RFR 8195615 : libsplashscreen
                  linux ppc64le build error after libpng update - was :
                  RE: jdk-hs ppc64le build error, probably related to
                  libpng update<o:p></o:p></span></p>
            </div>
          </div>
          <p class="MsoNormal"><o:p> </o:p></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt">This looks
            fine to me.<br>
            <br>
            Martin asked (a while ago) if I knew where to report this
            upstream.<br>
            <br>
            I can only suggest what I find via search as being the
            libpng bug tracker :<br>
            <a href="https://sourceforge.net/p/libpng/bugs/"
              moz-do-not-send="true">https://sourceforge.net/p/libpng/bugs/</a><br>
            <br>
            -phil<span \
style="font-size:12.0pt;mso-fareast-language:DE"><o:p></o:p></span></p>  <div>
            <p class="MsoNormal">On 01/17/2018 06:45 AM, Baesken,
              Matthias wrote:<o:p></o:p></p>
          </div>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US">Hello I created a  bug + webrev  for  the
                 png /  libsplashscreen  build  issue seen on linux
                ppc64le .</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US">The error because of undefined 
                png_init_filter_functions_vsx  is  :</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US">/open_jdk/jdk_2_build/linuxppc64le/support/native/java.desktop/libsplashscreen/pngrutil.o:
  In function `png_init_filter_functions': <br>
/open_jdk/jdk_2/jdk/src/java.desktop/share/native/libsplashscreen/libpng/pngrutil.c:4134:
  undefined reference to png_init_filter_functions_vsx' <br>
                <br>
                The issue has been observed on a SLES12 SP1 ppc64le
                build machine with "gcc version 4.8.5 (SUSE Linux)" . \
</span><o:p></o:p></p>  <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US">Please review .</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US">Bug :</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"
                lang="EN-US"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"><a
                  href="https://bugs.openjdk.java.net/browse/JDK-8195615"
                  moz-do-not-send="true">https://bugs.openjdk.java.net/browse/JDK-8195615</a></span><o:p></o:p></p>
                
            <p class="MsoNormal"><span style="color:windowtext"> \
                </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"> \
                </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext">Webrev \
                :</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"> \
</span><o:p></o:p></p>  <p class="MsoNormal"><span style="color:windowtext"><a
                  href="http://cr.openjdk.java.net/%7Embaesken/webrevs/8195615/"
                  moz-do-not-send="true">http://cr.openjdk.java.net/~mbaesken/webrevs/8195615/</a></span><o:p></o:p></p>
                
            <p class="MsoNormal"><span style="color:windowtext"> \
                </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"> \
</span><o:p></o:p></p>  <p class="MsoNormal"><span style="color:windowtext">Thanks,
                Matthias</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:windowtext"> \
</span><o:p></o:p></p>  <p class="MsoNormal"> <o:p></o:p></p>
            <div style="border:none;border-left:solid blue
              1.5pt;padding:0cm 0cm 0cm 4.0pt">
              <div>
                <div style="border:none;border-top:solid #E1E1E1
                  1.0pt;padding:3.0pt 0cm 0cm 0cm">
                  <p class="MsoNormal"><b><span
                        style="color:windowtext;mso-fareast-language:DE"
                        lang="EN-US">From:</span></b><span
                      style="color:windowtext;mso-fareast-language:DE"
                      lang="EN-US"> Philip Race [<a
                        href="mailto:philip.race@oracle.com"
                        moz-do-not-send="true">mailto:philip.race@oracle.com</a>]
                      <br>
                      <b>Sent:</b> Donnerstag, 28. Dezember 2017 18:09<br>
                      <b>To:</b> Baesken, Matthias <a
                        href="mailto:matthias.baesken@sap.com"
                        \
moz-do-not-send="true">&lt;matthias.baesken@sap.com&gt;</a><br>  <b>Cc:</b> <a
                        href="mailto:2d-dev@openjdk.java.net"
                        moz-do-not-send="true">2d-dev@openjdk.java.net</a>;
                      Doerr, Martin
                      <a href="mailto:martin.doerr@sap.com"
                        moz-do-not-send="true">&lt;martin.doerr@sap.com&gt;</a>;
                      Simonis, Volker
                      <a href="mailto:volker.simonis@sap.com"
                        moz-do-not-send="true">&lt;volker.simonis@sap.com&gt;</a><br>
                      <b>Subject:</b> Re: jdk-hs ppc64le build error,
                      probably related to libpng update</span><o:p></o:p></p>
                </div>
              </div>
              <p class="MsoNormal"> <o:p></o:p></p>
              <p class="MsoNormal">This all sounds fine to me.<br>
                Definitely we should report this upstream to see what
                they say but<br>
                clearly we aren't bound to wait for an answer from there
                since this is<br>
                a build breakage for PPC. If someone upstream<br>
                comes back with a better answer we can update the fix.<br>
                <br>
                I think this png update will get backported to 8u at
                some point ..<br>
                the PPC port is supported on 8u, isn't it ? So we'll
                want to make<br>
                sure we have the fix before we do the backport.<br>
                <br>
                -phil.<br>
                <br>
                On 12/28/17, 5:07 AM, Baesken, Matthias wrote: <o:p></o:p></p>
              <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
                <p class="MsoNormal"><span style="color:windowtext"
                    lang="EN-US">Hi Phil,  I think your idea to guard
                    with
                  </span><o:p></o:p></p>
                <p class="MsoNormal"><span style="color:windowtext"
                    lang="EN-US"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span lang="EN-US">#ifdef
                    PNG_POWERPC_VSX_API_SUPPORTED</span><o:p></o:p></p>
                <p class="MsoNormal"><span style="color:windowtext"
                    lang="EN-US"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span style="color:windowtext"
                    lang="EN-US">Is fine, should I prepare a webrev
                      using this guard ?</span><o:p></o:p></p>
                <p class="MsoNormal"><span style="color:windowtext"
                    lang="EN-US"> </span><o:p></o:p></p>
                <ul style="margin-top:0cm" type="disc">
                  <li class="MsoNormal"
                    style="color:windowtext;margin-left:0cm;mso-list:l2
                    level1 lfo3">
                    <span style="color:black" lang="EN-US">Wrapping in
                      that check might be OK (for
                      PNG_POWERPC_VSX_API_SUPPORTED) but you'll want to
                      report this upstream.</span><o:p></o:p></li>
                </ul>
                <p class="MsoNormal"><span style="color:windowtext"
                    lang="EN-US"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span style="color:windowtext"
                    lang="EN-US">Yes it is a good idea to report this
                    upstream as well  at libpng.</span><o:p></o:p></p>
                <p class="MsoNormal"><span style="color:windowtext"
                    lang="EN-US"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span lang="EN-US">Best regards,
                    Matthias</span><o:p></o:p></p>
                <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                <div style="border:none;border-left:solid blue
                  1.5pt;padding:0cm 0cm 0cm 4.0pt">
                  <div>
                    <div style="border:none;border-top:solid #E1E1E1
                      1.0pt;padding:3.0pt 0cm 0cm 0cm">
                      <p class="MsoNormal"><b><span
                            style="color:windowtext;mso-fareast-language:DE"
                            lang="EN-US">From:</span></b><span
                          style="color:windowtext;mso-fareast-language:DE"
                          lang="EN-US"> Phil Race [<a
                            href="mailto:philip.race@oracle.com"
                            moz-do-not-send="true">mailto:philip.race@oracle.com</a>]
                          <br>
                          <b>Sent:</b> Freitag, 22. Dezember 2017 19:08<br>
                          <b>To:</b> Baesken, Matthias <a
                            href="mailto:matthias.baesken@sap.com"
                            \
moz-do-not-send="true">&lt;matthias.baesken@sap.com&gt;</a>;  <a \
                href="mailto:2d-dev@openjdk.java.net"
                            moz-do-not-send="true">2d-dev@openjdk.java.net</a><br>
                          <b>Cc:</b> Doerr, Martin <a
                            href="mailto:martin.doerr@sap.com"
                            moz-do-not-send="true">&lt;martin.doerr@sap.com&gt;</a>;
                          Simonis, Volker
                          <a href="mailto:volker.simonis@sap.com"
                            \
moz-do-not-send="true">&lt;volker.simonis@sap.com&gt;</a><br>  <b>Subject:</b> Re: \
                jdk-hs ppc64le build
                          error, probably related to libpng \
update</span><o:p></o:p></p>  </div>
                  </div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                  <p class="MsoNormal" style="margin-bottom:12.0pt">I
                    expect that will fix it but I wonder if the problem
                    is that all of this needs<br>
                    to be guarded by checking :-<br>
                    <br>
                    #ifdef PNG_POWERPC_VSX_API_SUPPORTED<br>
                    <br>
                    It looks to me configure would have set that if it
                    had been run on PPC AND<br>
                    you have passed --enable-powerpc-vsx to configure<br>
                    <br>
                    But of course I did not.<br>
                    <br>
                    And someone can set it unsupported anyway.<br>
                    <br>
                    So this seems like a libpng bug.<br>
                    <br>
                    Wrapping in that check might be OK (for
                    PNG_POWERPC_VSX_API_SUPPORTED) but<br>
                    you'll want to report this upstream.<br>
                    <br>
                    I have no intention of pulling in the accelerated
                    code .. even for intel ... this<br>
                    library is used only for splashscreen.<br>
                    <br>
                    -phil.<br>
                    <br>
                    <br>
                    <br>
                    <o:p></o:p></p>
                  <div>
                    <p class="MsoNormal">On 12/21/2017 07:13 AM,
                      Baesken, Matthias wrote:<o:p></o:p></p>
                  </div>
                  <blockquote
                    style="margin-top:5.0pt;margin-bottom:5.0pt">
                    <p class="MsoNormal"><span lang="EN-US">&gt;Do  you 
                        have  a version of libpng  available that 
                        contains  the missing function 
                        png_init_filter_functions_vsx  ?</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">&gt;Or do
                        you have an idea where it should come from (I
                        cannot find it in the main libpng \
sources).</span><o:p></o:p></p>  <p class="MsoNormal"><span lang="EN-US">&gt;To fix
                        the build, we could probably disable  the part 
                        bringing in png_init_filter_functions_vsx   in
                        png_init_filter_functions_vsx  .</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">Hello, small
                        update -  here is a fix that  disables the 
                        libpng  vsx optimizations  on ppc64  (and fixes
                        the build issue).</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">Should I
                        prepare a webrev ?  Or how to get  a ppc64 le  /
                        be    png_init_filter_functions_vsx  
                        implementation ?</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">Best
                        regards, Matthias</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                    <p class="MsoNormal"><span \
lang="EN-US">-----------------------</span><o:p></o:p></p>  <p \
class="MsoNormal"><span lang="EN-US">diff -r  d55bee3727de
                        \
src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h</span><o:p></o:p></p>  \
                <p class="MsoNormal"><span lang="EN-US">---
                        \
                a/src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h   
                        Tue Dec 19 17:31:53 2017 -0500</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">+++
                        \
                b/src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h
                        Wed Dec 20 17:16:01 2017 +0100</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">@@ -220,12
                        +220,15 @@</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">#  \
                endif</span><o:p></o:p></p>
                    <p class="MsoNormal"><span \
lang="EN-US">#endif</span><o:p></o:p></p>  <p class="MsoNormal"><span \
                lang="EN-US">+/* for now
                        avoid the ppc64 vsx optimizations */</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">#ifndef
                        PNG_POWERPC_VSX_OPT</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">-#  if
                        defined(__PPC64__) &amp;&amp;
                        defined(__ALTIVEC__) &amp;&amp; \
defined(__VSX__)</span><o:p></o:p></p>  <p class="MsoNormal"><span lang="EN-US">-#    \
  define PNG_POWERPC_VSX_OPT 2</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">-#  \
                else</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">+/*</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">+ * #  if
                        defined(__PPC64__) &amp;&amp;
                        defined(__ALTIVEC__) &amp;&amp; \
defined(__VSX__)</span><o:p></o:p></p>  <p class="MsoNormal"><span lang="EN-US">+ * # \
  define PNG_POWERPC_VSX_OPT 2</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">+ * #  \
                else</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">+ \
*/</span><o:p></o:p></p>  <p class="MsoNormal"><span lang="EN-US">#     define
                        PNG_POWERPC_VSX_OPT 0</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US">-#  \
endif</span><o:p></o:p></p>  <p class="MsoNormal"><span lang="EN-US">+/* #  endif
                        */</span><o:p></o:p></p>
                    <p class="MsoNormal"><span \
lang="EN-US">#endif</span><o:p></o:p></p>  <p class="MsoNormal"><span lang="EN-US"> \
#ifndef  PNG_INTEL_SSE_OPT</span><o:p></o:p></p>
                    <p class="MsoNormal"><span \
                lang="EN-US">-----------------------</span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                    <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                    <div style="border:none;border-left:solid blue
                      1.5pt;padding:0cm 0cm 0cm 4.0pt">
                      <div>
                        <div style="border:none;border-top:solid #E1E1E1
                          1.0pt;padding:3.0pt 0cm 0cm 0cm">
                          <p class="MsoNormal"><b><span
                                style="mso-fareast-language:DE"
                                lang="EN-US">From:</span></b><span
                              style="mso-fareast-language:DE"
                              lang="EN-US"> Baesken, Matthias
                              <br>
                              <b>Sent:</b> Mittwoch, 20. Dezember 2017
                              13:04<br>
                              <b>To:</b> Phil Race (<a
                                href="mailto:philip.race@oracle.com"
                                moz-do-not-send="true">philip.race@oracle.com</a>)
                              <a href="mailto:philip.race@oracle.com"
                                \
moz-do-not-send="true">&lt;philip.race@oracle.com&gt;</a><br>  <b>Cc:</b> Doerr, \
Martin <a  href="mailto:martin.doerr@sap.com"
                                \
moz-do-not-send="true">&lt;martin.doerr@sap.com&gt;</a>;  Simonis, Volker
                              <a href="mailto:volker.simonis@sap.com"
                                \
moz-do-not-send="true">&lt;volker.simonis@sap.com&gt;</a>;  <a \
href="mailto:2d-dev@openjdk.java.net"  moz-do-not-send="true">
                                2d-dev@openjdk.java.net</a><br>
                              <b>Subject:</b> jdk-hs ppc64le build
                              error, probably related to libpng \
update</span><o:p></o:p></p>  </div>
                      </div>
                      <p class="MsoNormal"> <o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US">Hi Phil,
                          it looks like  the recent  png lib \
                change</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
                          style="font-size:10.0pt">8183960: Upgrade to
                          libpng 1.6.34</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><a
                          href="http://hg.openjdk.java.net/jdk/hs/rev/791d551bcdb8"
                          \
moz-do-not-send="true">http://hg.openjdk.java.net/jdk/hs/rev/791d551bcdb8</a><o:p></o:p></p>
  <p class="MsoNormal"> <o:p></o:p></p>
                      <p class="MsoNormal"><span style="font-size:9.0pt"
                          lang="EN-US">+#if PNG_POWERPC_VSX_OPT &gt; \
0</span><o:p></o:p></p>  <p class="MsoNormal"><span style="font-size:9.0pt"
                          lang="EN-US">+#  define
                          PNG_FILTER_OPTIMIZATIONS
                          png_init_filter_functions_vsx</span><o:p></o:p></p>
                      <p class="MsoNormal"><span style="font-size:9.0pt"
                          lang="EN-US">+#  define
                          PNG_POWERPC_VSX_IMPLEMENTATION 1</span><o:p></o:p></p>
                      <p class="MsoNormal"><span style="font-size:9.0pt"
                          lang="EN-US">+#endif</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US">Causes
                           build errors  in  our  linuxppc64le 
                           openjdk  jdk-hs (fast)dbg  build .</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US">We get
                           this linker error :</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal" style="margin-left:35.4pt"><span
                          lang="EN-US">pngrutil.c:(.text+0x4824):
                          undefined reference to
                          `png_init_filter_functions_vsx'</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US">Do  you 
                          have  a version of libpng  available that 
                          contains  the missing function 
                          png_init_filter_functions_vsx  ?</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US">Or do you
                          have an idea where it should come from (I
                          cannot find it in the main libpng \
                sources).</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US">To fix the
                          build, we could probably disable  the part 
                          bringing in png_init_filter_functions_vsx   in
                          png_init_filter_functions_vsx  .</span><o:p></o:p></p>
                      <p class="MsoNormal"><span style="font-size:9.0pt"
                          lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US">Thanks,
                          Matthias</span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span lang="EN-US">Error
                          message :</span><o:p></o:p></p>
                      <p class="MsoNormal"> <o:p></o:p></p>
                      <ul style="margin-top:0cm" type="disc">
                        <li class="MsoNormal"
                          style="margin-left:0cm;mso-list:l0 level1
                          lfo6"><span \
                lang="EN-US">/hs/support/native/java.desktop/libsplashscreen/pngrutil.o:
                
                            In function `png_read_filter_row':</span><o:p></o:p></li>
                        <li class="MsoNormal"
                          style="margin-left:0cm;mso-list:l0 level1
                          lfo6"><span lang="EN-US">pngrutil.c:(.text+0x4824):
                            undefined reference to
                            `png_init_filter_functions_vsx'</span><o:p></o:p></li>
                        <li class="MsoNormal"
                          style="margin-left:0cm;mso-list:l0 level1
                          lfo6"><span lang="EN-US">collect2: error: ld
                            returned 1 exit status</span><o:p></o:p></li>
                        <li class="MsoNormal"
                          style="margin-left:0cm;mso-list:l0 level1
                          lfo6"><span lang="EN-US">Awt2dLibraries.gmk:928:
                            recipe for target
                            \
'/hs/support/modules_libs/java.desktop/libsplashscreen.so'  \
failed</span><o:p></o:p></li>  </ul>
                    </div>
                  </blockquote>
                  <p class="MsoNormal"><span style="font-size:12.0pt"> \
</span><o:p></o:p></p>  </div>
              </blockquote>
            </div>
          </blockquote>
          <p class="MsoNormal"><span
              style="font-size:12.0pt;font-family:&quot;Times New
              Roman&quot;,serif;mso-fareast-language:DE"><o:p> </o:p></span></p>
        </div>
      </div>
    </blockquote>
    <br>
  </body>
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