1 /*
2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
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 */
465 HotSpotResolvedJavaMethodImpl method = null;
466 if (methodCache == null) {
467 methodCache = new HashMap<>(8);
468 } else {
469 method = methodCache.get(metaspaceMethod);
470 }
471 if (method == null) {
472 method = new HotSpotResolvedJavaMethodImpl(this, metaspaceMethod);
473 methodCache.put(metaspaceMethod, method);
474 context.add(method);
475 }
476 return method;
477 }
478
479 public int getVtableLength() {
480 HotSpotVMConfig config = config();
481 if (isInterface() || isArray()) {
482 /* Everything has the core vtable of java.lang.Object */
483 return config.baseVtableLength();
484 }
485 int result = UNSAFE.getInt(getMetaspaceKlass() + config.instanceKlassVtableLengthOffset) / (config.vtableEntrySize / config.heapWordSize);
486 assert result >= config.baseVtableLength() : UNSAFE.getInt(getMetaspaceKlass() + config.instanceKlassVtableLengthOffset) + " " + config.vtableEntrySize;
487 return result;
488 }
489
490 public synchronized HotSpotResolvedJavaField createField(String fieldName, JavaType type, long offset, int rawFlags) {
491 HotSpotResolvedJavaField result = null;
492
493 final int flags = rawFlags & ModifiersProvider.jvmFieldModifiers();
494
495 final long id = offset + ((long) flags << 32);
496
497 // Must cache the fields, because the local load elimination only works if the
498 // objects from two field lookups are identical.
499 if (fieldCache == null) {
500 fieldCache = new HashMap<>(8);
501 } else {
502 result = fieldCache.get(id);
503 }
504
505 if (result == null) {
506 result = new HotSpotResolvedJavaFieldImpl(this, fieldName, type, offset, rawFlags);
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1 /*
2 * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
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 */
465 HotSpotResolvedJavaMethodImpl method = null;
466 if (methodCache == null) {
467 methodCache = new HashMap<>(8);
468 } else {
469 method = methodCache.get(metaspaceMethod);
470 }
471 if (method == null) {
472 method = new HotSpotResolvedJavaMethodImpl(this, metaspaceMethod);
473 methodCache.put(metaspaceMethod, method);
474 context.add(method);
475 }
476 return method;
477 }
478
479 public int getVtableLength() {
480 HotSpotVMConfig config = config();
481 if (isInterface() || isArray()) {
482 /* Everything has the core vtable of java.lang.Object */
483 return config.baseVtableLength();
484 }
485 int result = UNSAFE.getInt(getMetaspaceKlass() + config.klassVtableLengthOffset) / (config.vtableEntrySize / config.heapWordSize);
486 assert result >= config.baseVtableLength() : UNSAFE.getInt(getMetaspaceKlass() + config.klassVtableLengthOffset) + " " + config.vtableEntrySize;
487 return result;
488 }
489
490 public synchronized HotSpotResolvedJavaField createField(String fieldName, JavaType type, long offset, int rawFlags) {
491 HotSpotResolvedJavaField result = null;
492
493 final int flags = rawFlags & ModifiersProvider.jvmFieldModifiers();
494
495 final long id = offset + ((long) flags << 32);
496
497 // Must cache the fields, because the local load elimination only works if the
498 // objects from two field lookups are identical.
499 if (fieldCache == null) {
500 fieldCache = new HashMap<>(8);
501 } else {
502 result = fieldCache.get(id);
503 }
504
505 if (result == null) {
506 result = new HotSpotResolvedJavaFieldImpl(this, fieldName, type, offset, rawFlags);
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