10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "gc/shared/preservedMarks.inline.hpp"
25 #include "gc/shared/fullGCForwarding.inline.hpp"
26 #include "oops/oop.inline.hpp"
27 #include "unittest.hpp"
28
29 static markWord originalMark() { return markWord(markWord::lock_mask_in_place); }
30 static markWord changedMark() { return markWord(0x4711); }
31
32 #define ASSERT_MARK_WORD_EQ(a, b) ASSERT_EQ((a).value(), (b).value())
33
34 TEST_VM(PreservedMarks, iterate_and_restore) {
35 PreservedMarks pm;
36
37 HeapWord fakeheap[32] = { nullptr };
38 HeapWord* heap = align_up(fakeheap, 8 * sizeof(HeapWord));
39 FullGCForwarding::initialize(MemRegion(&heap[0], &heap[16]));
40
41 oop o1 = cast_to_oop(&heap[0]); o1->set_mark(originalMark());
42 oop o2 = cast_to_oop(&heap[2]); o2->set_mark(originalMark());
43 oop o3 = cast_to_oop(&heap[4]); o3->set_mark(originalMark());
44 oop o4 = cast_to_oop(&heap[6]); o4->set_mark(originalMark());
45
46 // Make sure initial marks are correct.
47 ASSERT_MARK_WORD_EQ(o1->mark(), originalMark());
48 ASSERT_MARK_WORD_EQ(o2->mark(), originalMark());
49 ASSERT_MARK_WORD_EQ(o3->mark(), originalMark());
50 ASSERT_MARK_WORD_EQ(o4->mark(), originalMark());
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "gc/shared/preservedMarks.inline.hpp"
25 #include "gc/shared/fullGCForwarding.inline.hpp"
26 #include "oops/oop.inline.hpp"
27 #include "unittest.hpp"
28
29 static markWord originalMark() { return markWord(markWord::lock_mask_in_place); }
30 static markWord changedMark() { return markWord().copy_set_hash(0x4711); }
31
32 #define ASSERT_MARK_WORD_EQ(a, b) ASSERT_EQ((a).value(), (b).value())
33
34 TEST_VM(PreservedMarks, iterate_and_restore) {
35 PreservedMarks pm;
36
37 HeapWord fakeheap[32] = { nullptr };
38 HeapWord* heap = align_up(fakeheap, 8 * sizeof(HeapWord));
39 FullGCForwarding::initialize(MemRegion(&heap[0], &heap[16]));
40
41 oop o1 = cast_to_oop(&heap[0]); o1->set_mark(originalMark());
42 oop o2 = cast_to_oop(&heap[2]); o2->set_mark(originalMark());
43 oop o3 = cast_to_oop(&heap[4]); o3->set_mark(originalMark());
44 oop o4 = cast_to_oop(&heap[6]); o4->set_mark(originalMark());
45
46 // Make sure initial marks are correct.
47 ASSERT_MARK_WORD_EQ(o1->mark(), originalMark());
48 ASSERT_MARK_WORD_EQ(o2->mark(), originalMark());
49 ASSERT_MARK_WORD_EQ(o3->mark(), originalMark());
50 ASSERT_MARK_WORD_EQ(o4->mark(), originalMark());
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