RFR: 8203288: PPC64 and s390 fail to build after JDK-8199712 (Flight Recorder)

[Aleksey Shipilev]

On 05/16/2018 06:29 PM, Doerr, Martin wrote:
> I have used --disable-warnings-as-errors as workaround. Maybe I can fix the warning tomorrow, too.

That warning is fixable on both PPC64 and S390 with "just":

diff -r 708db0a05b27 src/hotspot/share/jfr/utilities/jfrBigEndian.hpp
--- a/src/hotspot/share/jfr/utilities/jfrBigEndian.hpp	Wed May 16 16:34:52 2018 +0200
+++ b/src/hotspot/share/jfr/utilities/jfrBigEndian.hpp	Wed May 16 18:42:53 2018 +0200
@@ -102,7 +102,7 @@
 inline bool JfrBigEndian::platform_supports_unaligned_reads(void) {
 #if defined(IA32) || defined(AMD64)
   return true;
-#elif defined(SPARC) || defined(ARM) || defined(AARCH64)
+#elif defined(SPARC) || defined(ARM) || defined(AARCH64) || defined(PPC64) || defined(S390)
   return false;
 #else
   #warning "Unconfigured platform"


...which returns the same "false" as the default/warned path, and it fixes normal builds.

Thanks,
-Aleksey