--- a/hotspot/src/share/vm/runtime/stubRoutines.cpp Wed Mar 11 18:49:22 2015 -0400
+++ b/hotspot/src/share/vm/runtime/stubRoutines.cpp Thu Mar 12 19:34:50 2015 -0400
@@ -210,8 +210,36 @@
assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything");
}
}
+
+// simple test for SafeFetch32
+static void test_safefetch32() {
+ int dummy = 17;
+ int* const p_invalid = (int*) get_segfault_address();
+ int* const p_valid = &dummy;
+ int result_invalid = SafeFetch32(p_invalid, 0xABC);
+ assert(result_invalid == 0xABC, "SafeFetch32 error");
+ int result_valid = SafeFetch32(p_valid, 0xABC);
+ assert(result_valid == 17, "SafeFetch32 error");
+}
+
+// simple test for SafeFetchN
+static void test_safefetchN() {
+#ifdef _LP64
+ const intptr_t v1 = UCONST64(0xABCD00000000ABCD);
+ const intptr_t v2 = UCONST64(0xDEFD00000000DEFD);
+#else
+ const intptr_t v1 = 0xABCDABCD;
+ const intptr_t v2 = 0xDEFDDEFD;
#endif
-
+ intptr_t dummy = v1;
+ intptr_t* const p_invalid = (intptr_t*) get_segfault_address();
+ intptr_t* const p_valid = &dummy;
+ intptr_t result_invalid = SafeFetchN(p_invalid, v2);
+ assert(result_invalid == v2, "SafeFetchN error");
+ intptr_t result_valid = SafeFetchN(p_valid, v2);
+ assert(result_valid == v1, "SafeFetchN error");
+}
+#endif
void StubRoutines::initialize2() {
if (_code2 == NULL) {
@@ -300,6 +328,13 @@
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_conjoint_words), sizeof(jlong));
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_disjoint_words), sizeof(jlong));
+ // test safefetch routines
+ // Not on Windows 32bit until 8074860 is fixed
+#if ! (defined(_WIN32) && defined(_M_IX86))
+ test_safefetch32();
+ test_safefetchN();
+#endif
+
#endif
}