[aarch64-port-dev ] [8] RFR (XS) 8246482: Build failures with +JFR -PCH

[Aleksey Shipilev]

Bug:
  https://bugs.openjdk.java.net/browse/JDK-8246482

This build failure is AArch64+JFR specific:

.../hotspot/src/share/vm/jfr/writers/jfrEncoders.hpp: In static member function 'static size_t
BigEndianEncoderImpl::encode(T, u1*)':
.../hotspot/src/share/vm/jfr/writers/jfrEncoders.hpp:91:8: error: 'Bytes' has not been declared
        Bytes::put_Java_u2(dest, value);
        ^~~~~

Fix:

diff -r 1ac56046129c src/share/vm/jfr/writers/jfrEncoders.hpp
--- a/src/share/vm/jfr/writers/jfrEncoders.hpp  Tue May 26 03:05:00 2020 +0100
+++ b/src/share/vm/jfr/writers/jfrEncoders.hpp  Wed Jun 03 13:03:31 2020 -0400
@@ -43,6 +43,9 @@
 #ifdef TARGET_ARCH_ppc
 # include "bytes_ppc.hpp"
 #endif
+#ifdef TARGET_ARCH_aarch64
+# include "bytes_aarch64.hpp"
+#endif

 //
 // The Encoding policy prescribes a template

There is another one that is JFR+Shenandoah specific, it would come with a merge:
  https://mail.openjdk.java.net/pipermail/shenandoah-dev/2020-June/012413.html
  https://hg.openjdk.java.net/shenandoah/jdk8/hotspot/rev/e16a3f855bf3

Testing: aarch64 build with +JFR -PCH

-- 
Thanks,
-Aleksey