0N/A/*
3158N/A * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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0N/A *
1472N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
1879N/A#include "precompiled.hpp"
2908N/A
2908N/A/////////////// Unit tests ///////////////
2908N/A
2908N/A#ifndef PRODUCT
2908N/A
1879N/A#include "oops/arrayOop.hpp"
3158N/A#include "oops/oop.inline.hpp"
2908N/A#include "utilities/globalDefinitions.hpp"
2908N/A
2908N/Abool arrayOopDesc::check_max_length_overflow(BasicType type) {
2908N/A julong length = max_array_length(type);
2908N/A julong bytes_per_element = type2aelembytes(type);
2908N/A julong bytes = length * bytes_per_element + header_size_in_bytes();
2908N/A return (julong)(size_t)bytes == bytes;
2908N/A}
2908N/A
2984N/Avoid arrayOopDesc::test_max_array_length() {
2908N/A assert(check_max_length_overflow(T_BOOLEAN), "size_t overflow for boolean array");
2908N/A assert(check_max_length_overflow(T_CHAR), "size_t overflow for char array");
2908N/A assert(check_max_length_overflow(T_FLOAT), "size_t overflow for float array");
2908N/A assert(check_max_length_overflow(T_DOUBLE), "size_t overflow for double array");
2908N/A assert(check_max_length_overflow(T_BYTE), "size_t overflow for byte array");
2908N/A assert(check_max_length_overflow(T_SHORT), "size_t overflow for short array");
2908N/A assert(check_max_length_overflow(T_INT), "size_t overflow for int array");
2908N/A assert(check_max_length_overflow(T_LONG), "size_t overflow for long array");
2908N/A assert(check_max_length_overflow(T_OBJECT), "size_t overflow for object array");
2908N/A assert(check_max_length_overflow(T_ARRAY), "size_t overflow for array array");
2908N/A assert(check_max_length_overflow(T_NARROWOOP), "size_t overflow for narrowOop array");
2908N/A
2908N/A // T_VOID and T_ADDRESS are not supported by max_array_length()
2908N/A}
2908N/A
2908N/A
2908N/A#endif //PRODUCT