[foreign-abi] RFR 8235258: Add support for empty segments and rebased addresses

[Nick Gasson]

On 03/12/2019 22:51, Maurizio Cimadamore wrote:
> 
> * added support for all ABIs (please double check :-))

I checked on AArch64. All the tests passed but the build is broken 
unless we cherry-pick the fix for JDK-8234891 from jdk/jdk.

Thanks,
Nick