RFR: 8230090: ZGC: Introduce ZSyscall

[Stefan Karlsson]

Looks good.

StefanK

On 2019-08-23 10:42, Per Liden wrote:
> Move the raw syscalls done in ZBackingFile into a class that can be 
> shared by all CPUs on Linux. Only the SYS_<number> macros need to be CPU 
> specific. This is paves the way for JDK-8230092, where I consolidate 
> ZBackingFile, ZBackingPath and ZPhysicalMemoryBacking, which today are 
> duplicated on linux_x86 and linux_aarch64.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8230090
> Webrev: http://cr.openjdk.java.net/~pliden/8230090/webrev.0
> 
> Testing: Builds on linux_x86 and linux_aarch64, passes dacapo
> 
> /Per