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<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Hi Phil, I think your idea to guard with
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#ifdef PNG_POWERPC_VSX_API_SUPPORTED</span><span lang="EN-US" style="color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Is fine, should I prepare a webrev using this guard ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoListParagraph" style="color:windowtext;margin-left:0cm;mso-list:l1 level1 lfo5">
<span lang="EN-US" style="color:black">Wrapping in that check might be OK (for PNG_POWERPC_VSX_API_SUPPORTED) but you'll want to report this upstream.</span><span lang="EN-US"><o:p></o:p></span></li></ul>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext">Yes it is a good idea to report this upstream as well at libpng.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best regards, Matthias<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="color:windowtext;mso-fareast-language:DE">From:</span></b><span lang="EN-US" style="color:windowtext;mso-fareast-language:DE"> Phil Race [mailto:philip.race@oracle.com]
<br>
<b>Sent:</b> Freitag, 22. Dezember 2017 19:08<br>
<b>To:</b> Baesken, Matthias <matthias.baesken@sap.com>; 2d-dev@openjdk.java.net<br>
<b>Cc:</b> Doerr, Martin <martin.doerr@sap.com>; Simonis, Volker <volker.simonis@sap.com><br>
<b>Subject:</b> Re: jdk-hs ppc64le build error, probably related to libpng update<o:p></o:p></span></p>
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<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>
<span style="font-size:12.0pt;mso-fareast-language:DE"><o:p></o:p></span></p>
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<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">>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">>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__) && defined(__ALTIVEC__) && 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__) && defined(__ALTIVEC__) && 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>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:DE">From:</span></b><span lang="EN-US" style="mso-fareast-language:DE"> 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">philip.race@oracle.com</a>)
<a href="mailto:philip.race@oracle.com"><philip.race@oracle.com></a><br>
<b>Cc:</b> Doerr, Martin <a href="mailto:martin.doerr@sap.com"><martin.doerr@sap.com></a>; Simonis, Volker
<a href="mailto:volker.simonis@sap.com"><volker.simonis@sap.com></a>; <a href="mailto:2d-dev@openjdk.java.net">
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>
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<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">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 lang="EN-US" style="font-size:9.0pt">+#if PNG_POWERPC_VSX_OPT > 0</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt">+# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt">+# define PNG_POWERPC_VSX_IMPLEMENTATION 1</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt">+#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 lang="EN-US" style="font-size:9.0pt"> </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 lfo3"><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 lfo3"><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 lfo3"><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 lfo3"><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>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:DE"><o:p> </o:p></span></p>
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