RFR: 8143014: Access PtrQueue member offsets through derived classes

[Thomas Schatzl]

Hi,

On Sun, 2015-11-15 at 15:39 -0500, Kim Barrett wrote:
> Please review this cleanup of the API for accessing member offset
> information for SATBMarkQueue and DirtyCardQueue.  Clients now access
> the specific queue class information.  In addition, JVMCI now uses the
> same API for obtaining the information as is used by other compilers
> and interpreters.
> 
> Also moved the vmStruct declarations for PtrQueue and members to
> vmStructs_g1.hpp, as that class is G1-specific.
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8143014
> 
> Webrev:
> http://cr.openjdk.java.net/~kbarrett/8143014/webrev.00/
> 
> Testing:
> JPRT

  looks good to me, but could you do at least some simple test run with
the SA agent, or run the vm.gc testlist before pushing?

JPRT is not enough to check for problems in the SA agent.

Thanks,
  Thomas