> Its right in time. I am facing "Undefined Symbol" errors with XLC 13.1 due to > "-qvisibility=hidden" which hides all symbols by default. I workaround that by > removing this flag
Hello, so it seems that I better remove the "-qvisibility=<setting>" completely for xlc (and not only for xlc12.1) ? (we currently compile only with XLC 12.1 , there might be more issues with 13.1 ) Best regards, Matthias > -----Original Message----- > From: Bhaktavatsal R Maram [mailto:[email protected]] > Sent: Donnerstag, 26. April 2018 16:32 > To: Baesken, Matthias <[email protected]> > Cc: '[email protected]' <[email protected]>; ppc-aix- > [email protected]; [email protected]; Simonis, > Volker <[email protected]> > Subject: Re: RFR : 8202322: AIX: symbol visibility flags not support on xlc > 12.1 > > Hi Matthias, > > Its right in time. I am facing "Undefined Symbol" errors with XLC 13.1 due to > "-qvisibility=hidden" which hides all symbols by default. I workaround that by > removing this flag > > -bash-4.4$ xlC -qversion > IBM XL C/C++ for AIX, V13.1.3 (5725-C72, 5765-J07) > Version: 13.01.0003.0000 > > Looks like there are many function declarations that require changes to make > function visible. > > Thanks, > Bhaktavatsal Reddy > > > > -----"core-libs-dev" <[email protected]> wrote: ----- > To: "'[email protected]'" <[email protected]>, "ppc- > [email protected]" <[email protected]>, > "[email protected]" <[email protected]> > From: "Baesken, Matthias" > Sent by: "core-libs-dev" > Date: 04/26/2018 07:45PM > Cc: "Simonis, Volker" <[email protected]> > Subject: RFR : 8202322: AIX: symbol visibility flags not support on xlc 12.1 > > Hello , could you please review this small adjustment to the symbol > visibility > compilation settings on AIX ? > Currently we use XLC 12.1 to compile JDK on AIX . > > However XLC 12.1 does not support the "-qvisibility=hidden" setting > currently set on AIX. > It was introduced with XLC 13.1 . Christoph found some info about it here : > > https://www.ibm.com/developerworks/aix/library/au-aix-symbol-visibility- > part2/index.html > > Setting it only generates hundreds of warnings in the build log , warnings > look like this : > XlC12.1 > > bash-4.4$ xlC -qversion > IBM XL C/C++ for AIX, V12.1 (5765-J02, 5725-C72) > Version: 12.01.0000.0019 > > bash-4.4$ xlC -qvisibility=hidden sizeof.c -o sizeof_aixxlc > 1506-173 (W) Option visibility=hidden is not valid. Enter xlC for list of > valid > options. > > Compare to XLC13.1 > > bash-3.00$ xlC -qversion > IBM XL C/C++ for AIX, V13.1 (5725-C72, 5765-J07) > Version: 13.01.0000.0008 > bash-3.00$ xlC -qvisibility=default sizeof.c -o sizeof_aixxlc > bash-3.00$ xlC -qvisibility=hidden sizeof.c -o sizeof_aixxlc > > > So it is better to avoid setting these flags when using xlc12.1 . > Please review : > > Bug : > > https://urldefense.proofpoint.com/v2/url?u=https- > 3A__bugs.openjdk.java.net_browse_JDK- > 2D8202322&d=DwIFAg&c=jf_iaSHvJObTbx- > siA1ZOg&r=KUVGEwJiRVpNtQ9wUhGP6BKqzSTV1OWX31WWPdQMmqg&m > =F6_aATE7bsRWZG5lPZhJUESHNGqST5MNbkULllIH8l4&s=M4IJ- > YdB3dfN7lj0DEWozQbipDXmgKtSu3pEyMcJF_E&e= > > Change : > > https://urldefense.proofpoint.com/v2/url?u=http- > 3A__cr.openjdk.java.net_- > 7Embaesken_webrevs_8202322_&d=DwIFAg&c=jf_iaSHvJObTbx- > siA1ZOg&r=KUVGEwJiRVpNtQ9wUhGP6BKqzSTV1OWX31WWPdQMmqg&m > =F6_aATE7bsRWZG5lPZhJUESHNGqST5MNbkULllIH8l4&s=gb0OP9fQTAWWJb > BZDK6L_0gTKf1pwna8aXaYr_uVv8Q&e= > > > Best regards, Matthias > >
