[8u-dev] Request for approval for CR: 8049717: expose L1_data_cache_line_size for diagnostic/sanity checks

[Kevin Walls]

Hi,

I'd like to get approval to backport 8049717 into 8u from 9.

JBS: https://bugs.openjdk.java.net/browse/JDK-8049717

9 changeset: http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/553f14d70527

8u-dev webrev: 
http://cr.openjdk.java.net/~kevinw/8049717.8u/webrev.01/index.html

The change almost imports cleanly, but required "obvious" manual changes 
in a couple of places, e.g. vm_version_sparc.cpp was not exactly the 
same in 8u at the places changed, due to other changes.  Similarly the 
change in jni.cpp needed editing as the list of tests called in 
execute_internal_vm_tests() is slightly different in 8u.

This change is needed to make further changes in the same area apply, 
e.g. to get 8134119 to "fit" into 8u.

Thanks
Kevin