7186278: Build error after CR#6995781 / 7151532 with GCC 4.7.0

David Holmes david.holmes at oracle.com
Tue Jul 24 00:43:05 PDT 2012


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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