[Bug target/32340] [arm] libjava build failure due to missing thread synchronization primitives

["aph at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #7 from aph at redhat dot com  2009-04-20 15:44 -------
Subject: Re:  [arm] libjava build failure due to missing
 thread synchronization primitives

>> I'm not quite sure what you're trying to do.
>>
>> What did you change to support arm-eabi* ?
> 
> I changed libjava/configure.host to also support arm-eabi
> (arm*-elf|arm*-eabi)but that probably wasn't enough. Given that arm-elf appears
> to be supported for this as per the last comment in the bug report, I thought
> it would make sense to have it working for arm-eabi.
> 
> I decided to go back and try an arm-elf build as well just now. I get a failure
> with jni-libjvm.cc with an error about ParkHelper not naming a type. Hence this
> appears to be broken on trunk as revision 146222 for arm-elf as well as
> arm-eabi.

Probably.  The java.lang.concurrent library requires thread support,
so the only way you're going to get it to run with no threads is to
create dummy definitions for ParkHelper.  That should be easy, since
null definitions for park() and unpark() will be fine.

Just add these to libjava/no-threads.cc and libjava/include/no-threads.h.

Andrew.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32340