author | pliden |
Thu, 25 Apr 2019 08:55:50 +0200 | |
changeset 54617 | 24f6b0e413a0 |
parent 50975 | b833992fa8fa |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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#include "precompiled.hpp" |
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#include "gc/z/zAddress.inline.hpp" |
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#include "gc/z/zGlobals.hpp" |
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#include "unittest.hpp" |
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class ZAddressTest : public ::testing::Test { |
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protected: |
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static void is_good_bit(uintptr_t bit_mask) { |
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// Setup |
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ZAddress::initialize(); |
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ZAddress::set_good_mask(bit_mask); |
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// Test that a pointer with only the given bit is considered good. |
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EXPECT_EQ(ZAddress::is_good(ZAddressMetadataMarked0), (bit_mask == ZAddressMetadataMarked0)); |
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EXPECT_EQ(ZAddress::is_good(ZAddressMetadataMarked1), (bit_mask == ZAddressMetadataMarked1)); |
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EXPECT_EQ(ZAddress::is_good(ZAddressMetadataRemapped), (bit_mask == ZAddressMetadataRemapped)); |
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// Test that a pointer with the given bit and some extra bits is considered good. |
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EXPECT_EQ(ZAddress::is_good(ZAddressMetadataMarked0 | 0x8),(bit_mask == ZAddressMetadataMarked0)); |
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EXPECT_EQ(ZAddress::is_good(ZAddressMetadataMarked1 | 0x8), (bit_mask == ZAddressMetadataMarked1)); |
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EXPECT_EQ(ZAddress::is_good(ZAddressMetadataRemapped | 0x8), (bit_mask == ZAddressMetadataRemapped)); |
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// Test that null is not considered good. |
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EXPECT_FALSE(ZAddress::is_good(0)); |
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} |
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static void is_good_or_null_bit(uintptr_t bit_mask) { |
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// Setup |
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ZAddress::initialize(); |
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ZAddress::set_good_mask(bit_mask); |
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// Test that a pointer with only the given bit is considered good. |
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EXPECT_EQ(ZAddress::is_good_or_null(ZAddressMetadataMarked0), (bit_mask == ZAddressMetadataMarked0)); |
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EXPECT_EQ(ZAddress::is_good_or_null(ZAddressMetadataMarked1), (bit_mask == ZAddressMetadataMarked1)); |
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EXPECT_EQ(ZAddress::is_good_or_null(ZAddressMetadataRemapped), (bit_mask == ZAddressMetadataRemapped)); |
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// Test that a pointer with the given bit and some extra bits is considered good. |
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EXPECT_EQ(ZAddress::is_good_or_null(ZAddressMetadataMarked0 | 0x8), (bit_mask == ZAddressMetadataMarked0)); |
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EXPECT_EQ(ZAddress::is_good_or_null(ZAddressMetadataMarked1 | 0x8), (bit_mask == ZAddressMetadataMarked1)); |
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EXPECT_EQ(ZAddress::is_good_or_null(ZAddressMetadataRemapped | 0x8), (bit_mask == ZAddressMetadataRemapped)); |
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// Test that null is considered good_or_null. |
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EXPECT_TRUE(ZAddress::is_good_or_null(0)); |
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} |
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static void finalizable() { |
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// Setup |
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ZAddress::initialize(); |
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ZAddress::flip_to_marked(); |
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// Test that a normal good pointer is good and weak good, but not finalizable |
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const uintptr_t addr1 = ZAddress::good(1); |
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EXPECT_FALSE(ZAddress::is_finalizable(addr1)); |
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EXPECT_TRUE(ZAddress::is_marked(addr1)); |
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EXPECT_FALSE(ZAddress::is_remapped(addr1)); |
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EXPECT_TRUE(ZAddress::is_weak_good(addr1)); |
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EXPECT_TRUE(ZAddress::is_weak_good_or_null(addr1)); |
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EXPECT_TRUE(ZAddress::is_good(addr1)); |
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EXPECT_TRUE(ZAddress::is_good_or_null(addr1)); |
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// Test that a finalizable good pointer is finalizable and weak good, but not good |
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const uintptr_t addr2 = ZAddress::finalizable_good(1); |
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EXPECT_TRUE(ZAddress::is_finalizable(addr2)); |
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EXPECT_TRUE(ZAddress::is_marked(addr2)); |
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EXPECT_FALSE(ZAddress::is_remapped(addr2)); |
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EXPECT_TRUE(ZAddress::is_weak_good(addr2)); |
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EXPECT_TRUE(ZAddress::is_weak_good_or_null(addr2)); |
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EXPECT_FALSE(ZAddress::is_good(addr2)); |
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EXPECT_FALSE(ZAddress::is_good_or_null(addr2)); |
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// Flip to remapped and test that it's no longer weak good |
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ZAddress::flip_to_remapped(); |
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EXPECT_TRUE(ZAddress::is_finalizable(addr2)); |
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EXPECT_TRUE(ZAddress::is_marked(addr2)); |
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EXPECT_FALSE(ZAddress::is_remapped(addr2)); |
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EXPECT_FALSE(ZAddress::is_weak_good(addr2)); |
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EXPECT_FALSE(ZAddress::is_weak_good_or_null(addr2)); |
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EXPECT_FALSE(ZAddress::is_good(addr2)); |
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EXPECT_FALSE(ZAddress::is_good_or_null(addr2)); |
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} |
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}; |
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TEST_F(ZAddressTest, is_good) { |
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is_good_bit(ZAddressMetadataMarked0); |
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is_good_bit(ZAddressMetadataMarked1); |
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is_good_bit(ZAddressMetadataRemapped); |
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} |
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TEST_F(ZAddressTest, is_good_or_null) { |
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is_good_or_null_bit(ZAddressMetadataMarked0); |
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is_good_or_null_bit(ZAddressMetadataMarked1); |
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is_good_or_null_bit(ZAddressMetadataRemapped); |
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} |
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TEST_F(ZAddressTest, is_weak_good_or_null) { |
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#define check_is_weak_good_or_null(value) \ |
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EXPECT_EQ(ZAddress::is_weak_good_or_null(value), \ |
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(ZAddress::is_good_or_null(value) || ZAddress::is_remapped(value))) \ |
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<< "is_good_or_null: " << ZAddress::is_good_or_null(value) \ |
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<< " is_remaped: " << ZAddress::is_remapped(value) \ |
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<< " is_good_or_null_or_remapped: " << ZAddress::is_weak_good_or_null(value) |
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check_is_weak_good_or_null((uintptr_t)NULL); |
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check_is_weak_good_or_null(ZAddressMetadataMarked0); |
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check_is_weak_good_or_null(ZAddressMetadataMarked1); |
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check_is_weak_good_or_null(ZAddressMetadataRemapped); |
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check_is_weak_good_or_null((uintptr_t)0x123); |
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} |
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|
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TEST_F(ZAddressTest, finalizable) { |
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finalizable(); |
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} |