Zero backport (2/7)

[Joe Darcy]

Andrew John Hughes wrote:
> On 29 March 2010 22:13, Joe Darcy <joe.darcy at oracle.com> wrote:
>   
>> Andrew John Hughes wrote:
>>     
>>> First of several fixes for Zero:
>>>
>>> changeset:   1078:8e7adf982378
>>> parent:      1073:de44705e6b33
>>> user:        twisti
>>> date:        Fri Nov 27 07:56:58 2009 -0800
>>> summary:     6896043: first round of zero fixes
>>>
>>> http://cr.openjdk.java.net/~andrew/zero/webrev.03/
>>>
>>> I believe this is a pile of fixes that accumulated for Zero in IcedTea
>>> prior to this commit:
>>>
>>> Amalgamation of cc-interp-backedge (Remove some duplicated code in
>>> DO_BACKEDGE_CHECKS),
>>> cc-interp-jvmti (Disable some JVMTI capabilities which are unsupported
>>> or do not work with the C++ interpreter),
>>> ia64-bugfix (Remove workaround for IA64 GCC bug),
>>> s390-serialize (Correctly detect serialization segfaults on s390) and
>>> test-atomic-operations (Add check to see if GCC's sync_lock_test works).
>>>
>>> Ok to push?  It builds ok here and passes the JTreg tests.
>>>
>>>       
>> How does this relate to the JDK 7 version of the fix for this bug:
>> http://hg.openjdk.java.net/jdk7/jdk7/hotspot/rev/8e7adf982378
>>
>> -Joe
>>
>>     
>
> It's the same, but without the change to globals_zero.hpp as it broke
> the build (presumably reliant on a hs17 change as it's not in the
> IcedTea-local version either).
>   

I approve the current version going back, with a suggestion of making a 
note of this merge difference for the future.

-Joe