6953477: review request for portability improvements to Hotspot

[Bob Vandette]

Here are a set of changes that we're planning on pushing into the openjdk hotspot repository.

http://cr.openjdk.java.net/~bobv/6953477/webrev.00/

They include:

1. Cross Compilation improvements
2. Shared code changes for ARM and PPC
3. Software floating point support
4. Improvements to the hotspot crash log

There are a few areas that could use additional factoring but these will be done under a seperate
CR.


Bob Vandette
Oracle