--- old/src/share/vm/prims/unsafe.cpp	2015-03-06 18:38:39.626245544 +0000
+++ new/src/share/vm/prims/unsafe.cpp	2015-03-06 18:38:39.446263513 +0000
@@ -324,6 +324,26 @@
 
 #endif // not SUPPORTS_NATIVE_CX8
 
+UNSAFE_ENTRY(jboolean, Unsafe_isBigEndian(JNIEnv *env, jobject unsafe))
+  UnsafeWrapper("Unsafe_IsBigEndian");
+  {
+#ifdef VM_BIG_ENDIAN
+    return true;
+#elif defined(VM_LITTLE_ENDIAN)
+    return false;
+#else
+#error  VM_LITTLE_ENDIAN or VM_BIG_ENDIAN must be defined
+#endif
+  }
+UNSAFE_END
+
+UNSAFE_ENTRY(jint, Unsafe_unalignedAccess(JNIEnv *env, jobject unsafe))
+  UnsafeWrapper("Unsafe_UnalignedAccess");
+  {
+    return UseUnalignedAccesses;
+  }
+UNSAFE_END
+
 #define DEFINE_GETSETOOP(jboolean, Boolean) \
  \
 UNSAFE_ENTRY(jboolean, Unsafe_Get##Boolean##140(JNIEnv *env, jobject unsafe, jobject obj, jint offset)) \
@@ -1261,6 +1281,9 @@
     {CC"loadFence",          CC"()V",                    FN_PTR(Unsafe_LoadFence)},
     {CC"storeFence",         CC"()V",                    FN_PTR(Unsafe_StoreFence)},
     {CC"fullFence",          CC"()V",                    FN_PTR(Unsafe_FullFence)},
+
+    {CC"isBigEndian",       CC"()Z",                    FN_PTR(Unsafe_isBigEndian)},
+    {CC"unalignedAccess",    CC"()Z",                    FN_PTR(Unsafe_unalignedAccess)}
 };
 
 #undef CC