src/hotspot/share/oops/objArrayOop.inline.hpp - master - githubmirror/jdk11u-dev

src/hotspot/share/oops/objArrayOop.inline.hpp
59 строк3 KB
Aleksey Shipilev
8250844: Make sure {type,obj}ArrayOopDesc accessors check the bounds
02 авг 2020, 17:58
02 авг 2020, 17:5874181a4
/*
 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_OOPS_OBJARRAYOOP_INLINE_HPP
#define SHARE_VM_OOPS_OBJARRAYOOP_INLINE_HPP

#include "oops/access.inline.hpp"
#include "oops/arrayOop.inline.hpp"
#include "oops/objArrayOop.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/globals.hpp"

inline HeapWord* objArrayOopDesc::base() const { return (HeapWord*) arrayOopDesc::base(T_OBJECT); }
inline HeapWord* objArrayOopDesc::base_raw() const { return (HeapWord*) arrayOopDesc::base_raw(T_OBJECT); }

template <class T> T* objArrayOopDesc::obj_at_addr(int index) const {
  assert(is_within_bounds(index), "index %d out of bounds %d", index, length());
  return &((T*)base())[index];
}

template <class T> T* objArrayOopDesc::obj_at_addr_raw(int index) const {
  assert(is_within_bounds(index), "index %d out of bounds %d", index, length());
  return &((T*)base_raw())[index];
}

inline oop objArrayOopDesc::obj_at(int index) const {
  assert(is_within_bounds(index), "index %d out of bounds %d", index, length());
  ptrdiff_t offset = UseCompressedOops ? obj_at_offset<narrowOop>(index) : obj_at_offset<oop>(index);
  return HeapAccess<IS_ARRAY>::oop_load_at(as_oop(), offset);
}

inline void objArrayOopDesc::obj_at_put(int index, oop value) {
  assert(is_within_bounds(index), "index %d out of bounds %d", index, length());
  ptrdiff_t offset = UseCompressedOops ? obj_at_offset<narrowOop>(index) : obj_at_offset<oop>(index);
  HeapAccess<IS_ARRAY>::oop_store_at(as_oop(), offset, value);
}

#endif // SHARE_VM_OOPS_OBJARRAYOOP_INLINE_HPP