author | pliden |
Tue, 12 Jun 2018 17:40:28 +0200 | |
changeset 50525 | 767cdb97f103 |
child 50975 | b833992fa8fa |
permissions | -rw-r--r-- |
50525
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/* |
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* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. |
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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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uintptr_t mask_before = ZAddressGoodMask; |
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ZAddressMasks::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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// Teardown |
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ZAddressMasks::set_good_mask(mask_before); |
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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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uintptr_t mask_before = ZAddressGoodMask; |
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ZAddressMasks::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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// Teardown |
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ZAddressMasks::set_good_mask(mask_before); |
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} |
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static void finalizable() { |
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// Setup |
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ZAddressMasks::initialize(); |
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ZAddressMasks::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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ZAddressMasks::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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TEST_F(ZAddressTest, finalizable) { |
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finalizable(); |
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} |