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List:       openjdk-hotspot-runtime-dev
Subject:    7186278: Build error after CR#6995781 / 7151532 with GCC 4.7.0
From:       david.holmes () oracle ! com (David Holmes)
Date:       2012-07-24 7:43:05
Message-ID: 500E5209.7010604 () oracle ! com
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On 24/07/2012 5:13 PM, Yasumasa Suenaga wrote:
> Hi David.
> 
> Thank you for replying.
> 
> 
> "NoPermGen" comes so soon?

Not too far away AFAIK.

> I want to build / use JDK8 on Fedora17 or later.
> 
> So I would like you to merge this patch into mainline.

The bug has been accepted it now depends on resources/priorities etc.

Thanks,
David

> 
> Best regards,
> 
> Yasumasa
> 
> 
> On 2012/07/24 15:41, David Holmes wrote:
> > Thank you for the report. We recently encountered a similar GCC 4.7
> > issue (7172226). I think this may be addressed in the upcoming NoPermGen
> > changes but we can use the patch in other release trains if necessary.
> > 
> > David Holmes
> > 
> > On 24/07/2012 4:09 PM, Yasumasa Suenaga wrote:
> > > Hi,
> > > 
> > > When I build JDK8 with GCC 4.7.0 on Fedora17, it fails with message as \
> > > following: 
> > > ----------
> > > /usr/src/OpenJDK/8/test/jdk8/hotspot/src/share/vm/utilities/hashtable.hpp: In \
> > > instantiation of 'int Hashtable<T, F>::index_for(Symbol*) [with T = \
> > >                 constantPoolOopDesc*; short unsigned int F = 256u]':
> > > /usr/src/OpenJDK/8/test/jdk8/hotspot/src/share/vm/utilities/hashtable.cpp:317:16: \
> > >                 required from here
> > > /usr/src/OpenJDK/8/test/jdk8/hotspot/src/share/vm/utilities/hashtable.hpp:263:44: \
> > > error: 'hash_to_index' was not declared in this scope, and no declarations were \
> > >                 found by argument-dependent lookup at the point of \
> > >                 instantiation [-fpermissive]
> > > /usr/src/OpenJDK/8/test/jdk8/hotspot/src/share/vm/utilities/hashtable.hpp:263:44: \
> > > note: declarations in dependent base 'BasicHashtable<256u>' are not found by \
> > >                 unqualified lookup
> > > /usr/src/OpenJDK/8/test/jdk8/hotspot/src/share/vm/utilities/hashtable.hpp:263:44: \
> > >                 note: use 'this->hash_to_index' instead
> > > ----------
> > > 
> > > This problem is caused by C++ template class.
> > > We have to explicit references of C++ class member to access them.
> > > 
> > > Bug 43282 - GCC looks into dependent bases during unqualified lookup
> > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43282
> > > 
> > > 
> > > I posted this problem on BugDatabase as a new bug.
> > > 
> > > I've made a patch which attached in this email, and it works fine in my \
> > > environment. I would like to contribute this patch, and I hope to merge this \
> > > patch into mainline. 
> > > Please cooperate.
> > > 
> > > 
> > > Best regards,
> > > Yasumasa
> > > 
> 
> 


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