--- a/src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp Thu Jun 13 12:27:29 2019 +0200
+++ b/src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp Thu Jun 13 15:24:34 2019 +0100
@@ -46,6 +46,9 @@
#ifdef COMPILER2
#include "opto/runtime.hpp"
#endif
+#if INCLUDE_ZGC
+#include "gc/z/zThreadLocalData.hpp"
+#endif
#ifdef BUILTIN_SIM
#include "../../../../../../simulator/simulator.hpp"
@@ -580,6 +583,16 @@
// make sure object is 'reasonable'
__ cbz(r0, exit); // if obj is NULL it is OK
+#if INCLUDE_ZGC
+ if (UseZGC) {
+ // Check if mask is good.
+ // verifies that ZAddressBadMask & r0 == 0
+ __ ldr(c_rarg3, Address(rthread, ZThreadLocalData::address_bad_mask_offset()));
+ __ andr(c_rarg2, r0, c_rarg3);
+ __ cbnz(c_rarg2, error);
+ }
+#endif
+
// Check if the oop is in the right area of memory
__ mov(c_rarg3, (intptr_t) Universe::verify_oop_mask());
__ andr(c_rarg2, r0, c_rarg3);