RFA/RFR [10] 8202540: Zero build is broken after JDK-8189871 (Refactor GC barriers to use declarative semantics)

[Aleksey Shipilev]

jdk10u-fix-yes was granted for the 10u bug.

Do I have to have the formal ack on this review thread as well? If so, please ack.

-Aleksey

On 05/02/2018 12:10 PM, Aleksey Shipilev wrote:
> This is a bit unconventional process-wise, because there is a fix in JDK 11, but it comes with the
> bunch of other unrelated changes that are not backportable to 10u. So, I opted to submit a separate
> bug for this. I added the jdk10u-fix-request tag and appropriate comment.
> 
> 10u bug:
>   https://bugs.openjdk.java.net/browse/JDK-8202540
> 
> 11 bug:
>  https://bugs.openjdk.java.net/browse/JDK-8199220
> 
> 10u fix:
> 
> diff -r e4530ef14c08 src/hotspot/cpu/zero/globalDefinitions_zero.hpp
> --- a/src/hotspot/cpu/zero/globalDefinitions_zero.hpp	Wed Mar 28 14:24:17 2018 +0100
> +++ b/src/hotspot/cpu/zero/globalDefinitions_zero.hpp	Wed May 02 12:03:18 2018 +0200
> @@ -26,6 +26,10 @@
>  #ifndef CPU_ZERO_VM_GLOBALDEFINITIONS_ZERO_HPP
>  #define CPU_ZERO_VM_GLOBALDEFINITIONS_ZERO_HPP
> 
> +#ifdef _LP64
> +#define SUPPORTS_NATIVE_CX8
> +#endif
> +
>  #include <ffi.h>
> 
>  // Indicates whether the C calling conventions require that
> 
> Testing: x86_64 Zero builds
> 
> Thanks,
> -Aleksey
>