RFR: [XS] 8227171: provide function names in native stack trace on aix with xlc16
Hello please review this small fix for AIX (needed with the new xlc16) . Currently we miss function names in the hs_err file : 0x0000000115098660 - 0x090000000f629a4c libjvm.so::<nameless function>+0x6c (C++ saves_lr stores_bc gpr_saved:4 ) 0x00000001150986f0 - 0x09000000113594bc libjvm.so::<nameless function>+0x95c (C++ saves_lr stores_bc gpr_saved:18 ) The output contains "nameless function" instead of the (member) function names . Looks like this unwanted behavior was introduced when switching to the xlc16 compiler. With xlc16, it looks like we have to configure the traceback table generation to get the output we need. The -qtbtable=full setting can be used for this _ https://www.ibm.com/support/knowledgecenter/SSGH4D_16.1.0/com.ibm.xlf161.aix... Bug / webrev : https://bugs.openjdk.java.net/browse/JDK-8227171 http://cr.openjdk.java.net/~mbaesken/webrevs/8227171.0/ Thanks, Matthias
Looks good and trivial. Thanks for fixing. ..Thomas On Wed, Jul 3, 2019 at 2:02 PM Baesken, Matthias <matthias.baesken@sap.com> wrote:
Hello please review this small fix for AIX (needed with the new xlc16) .
Currently we miss function names in the hs_err file :
0x0000000115098660 - 0x090000000f629a4c libjvm.so::<nameless function>+0x6c (C++ saves_lr stores_bc gpr_saved:4 ) 0x00000001150986f0 - 0x09000000113594bc libjvm.so::<nameless function>+0x95c (C++ saves_lr stores_bc gpr_saved:18 )
The output contains "nameless function" instead of the (member) function names . Looks like this unwanted behavior was introduced when switching to the xlc16 compiler.
With xlc16, it looks like we have to configure the traceback table generation to get the output we need.
The -qtbtable=full setting can be used for this _
https://www.ibm.com/support/knowledgecenter/SSGH4D_16.1.0/com.ibm.xlf161.aix...
Bug / webrev :
https://bugs.openjdk.java.net/browse/JDK-8227171
http://cr.openjdk.java.net/~mbaesken/webrevs/8227171.0/
Thanks, Matthias
Thanks for the review ! From: Thomas Stüfe <thomas.stuefe@gmail.com> Sent: Mittwoch, 3. Juli 2019 14:09 To: Baesken, Matthias <matthias.baesken@sap.com> Cc: build-dev@openjdk.java.net; ppc-aix-port-dev@openjdk.java.net Subject: Re: RFR: [XS] 8227171: provide function names in native stack trace on aix with xlc16 Looks good and trivial. Thanks for fixing. ..Thomas On Wed, Jul 3, 2019 at 2:02 PM Baesken, Matthias <matthias.baesken@sap.com<mailto:matthias.baesken@sap.com>> wrote: Hello please review this small fix for AIX (needed with the new xlc16) . Currently we miss function names in the hs_err file : 0x0000000115098660 - 0x090000000f629a4c libjvm.so::<nameless function>+0x6c (C++ saves_lr stores_bc gpr_saved:4 ) 0x00000001150986f0 - 0x09000000113594bc libjvm.so::<nameless function>+0x95c (C++ saves_lr stores_bc gpr_saved:18 ) The output contains "nameless function" instead of the (member) function names . Looks like this unwanted behavior was introduced when switching to the xlc16 compiler. With xlc16, it looks like we have to configure the traceback table generation to get the output we need. The -qtbtable=full setting can be used for this _ https://www.ibm.com/support/knowledgecenter/SSGH4D_16.1.0/com.ibm.xlf161.aix... Bug / webrev : https://bugs.openjdk.java.net/browse/JDK-8227171 http://cr.openjdk.java.net/~mbaesken/webrevs/8227171.0/ Thanks, Matthias
Hello, any more reviews ? May I push the change ? Best regards, Matthias From: Thomas Stüfe <thomas.stuefe@gmail.com> Sent: Mittwoch, 3. Juli 2019 14:09 To: Baesken, Matthias <matthias.baesken@sap.com> Cc: build-dev@openjdk.java.net; ppc-aix-port-dev@openjdk.java.net Subject: Re: RFR: [XS] 8227171: provide function names in native stack trace on aix with xlc16 Looks good and trivial. Thanks for fixing. ..Thomas On Wed, Jul 3, 2019 at 2:02 PM Baesken, Matthias <matthias.baesken@sap.com<mailto:matthias.baesken@sap.com>> wrote: Hello please review this small fix for AIX (needed with the new xlc16) . Currently we miss function names in the hs_err file : 0x0000000115098660 - 0x090000000f629a4c libjvm.so::<nameless function>+0x6c (C++ saves_lr stores_bc gpr_saved:4 ) 0x00000001150986f0 - 0x09000000113594bc libjvm.so::<nameless function>+0x95c (C++ saves_lr stores_bc gpr_saved:18 ) The output contains "nameless function" instead of the (member) function names . Looks like this unwanted behavior was introduced when switching to the xlc16 compiler. With xlc16, it looks like we have to configure the traceback table generation to get the output we need. The -qtbtable=full setting can be used for this _ https://www.ibm.com/support/knowledgecenter/SSGH4D_16.1.0/com.ibm.xlf161.aix... Bug / webrev : https://bugs.openjdk.java.net/browse/JDK-8227171 http://cr.openjdk.java.net/~mbaesken/webrevs/8227171.0/ Thanks, Matthias
It's trivial IMHO. Ship it. On Thu, Jul 4, 2019, 09:30 Baesken, Matthias <matthias.baesken@sap.com> wrote:
Hello, any more reviews ?
May I push the change ?
Best regards, Matthias
*From:* Thomas Stüfe <thomas.stuefe@gmail.com> *Sent:* Mittwoch, 3. Juli 2019 14:09 *To:* Baesken, Matthias <matthias.baesken@sap.com> *Cc:* build-dev@openjdk.java.net; ppc-aix-port-dev@openjdk.java.net *Subject:* Re: RFR: [XS] 8227171: provide function names in native stack trace on aix with xlc16
Looks good and trivial. Thanks for fixing.
..Thomas
On Wed, Jul 3, 2019 at 2:02 PM Baesken, Matthias <matthias.baesken@sap.com> wrote:
Hello please review this small fix for AIX (needed with the new xlc16) .
Currently we miss function names in the hs_err file :
0x0000000115098660 - 0x090000000f629a4c libjvm.so::<nameless function>+0x6c (C++ saves_lr stores_bc gpr_saved:4 ) 0x00000001150986f0 - 0x09000000113594bc libjvm.so::<nameless function>+0x95c (C++ saves_lr stores_bc gpr_saved:18 )
The output contains "nameless function" instead of the (member) function names . Looks like this unwanted behavior was introduced when switching to the xlc16 compiler.
With xlc16, it looks like we have to configure the traceback table generation to get the output we need.
The -qtbtable=full setting can be used for this _
https://www.ibm.com/support/knowledgecenter/SSGH4D_16.1.0/com.ibm.xlf161.aix...
Bug / webrev :
https://bugs.openjdk.java.net/browse/JDK-8227171
http://cr.openjdk.java.net/~mbaesken/webrevs/8227171.0/
Thanks, Matthias
participants (2)
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Baesken, Matthias
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Thomas Stüfe