Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/g1BiasedArray.cpp @ 17715:f8068fa6aa46
8035983: Fix "Native frames:" in crash report (hs_err file)
Summary: check fr.sender_sp() in java thread instead of os::is_first_C_frame(&fr).
Reviewed-by: twisti, coleenp
author | kvn |
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date | Wed, 05 Mar 2014 16:21:22 -0800 |
parents | a19bea467577 |
children | 5479cb006184 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 #include "precompiled.hpp" |
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26 #include "gc_implementation/g1/g1BiasedArray.hpp" |
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27 |
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28 #ifndef PRODUCT |
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29 void G1BiasedMappedArrayBase::verify_index(idx_t index) const { |
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30 guarantee(_base != NULL, "Array not initialized"); |
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31 guarantee(index < length(), err_msg("Index out of bounds index: "SIZE_FORMAT" length: "SIZE_FORMAT, index, length())); |
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32 } |
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33 |
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34 void G1BiasedMappedArrayBase::verify_biased_index(idx_t biased_index) const { |
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35 guarantee(_biased_base != NULL, "Array not initialized"); |
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36 guarantee(biased_index >= bias() && biased_index < (bias() + length()), |
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37 err_msg("Biased index out of bounds, index: "SIZE_FORMAT" bias: "SIZE_FORMAT" length: "SIZE_FORMAT, biased_index, bias(), length())); |
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38 } |
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39 |
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40 void G1BiasedMappedArrayBase::verify_biased_index_inclusive_end(idx_t biased_index) const { |
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41 guarantee(_biased_base != NULL, "Array not initialized"); |
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42 guarantee(biased_index >= bias() && biased_index <= (bias() + length()), |
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43 err_msg("Biased index out of inclusive bounds, index: "SIZE_FORMAT" bias: "SIZE_FORMAT" length: "SIZE_FORMAT, biased_index, bias(), length())); |
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44 } |
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45 |
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46 class TestMappedArray : public G1BiasedMappedArray<int> { |
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47 protected: |
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48 virtual int default_value() const { return 0xBAADBABE; } |
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49 public: |
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50 static void test_biasedarray() { |
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51 const size_t REGION_SIZE_IN_WORDS = 512; |
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52 const size_t NUM_REGIONS = 20; |
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53 HeapWord* fake_heap = (HeapWord*)LP64_ONLY(0xBAAA00000) NOT_LP64(0xBA000000); // Any value that is non-zero |
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54 |
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55 TestMappedArray array; |
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56 array.initialize(fake_heap, fake_heap + REGION_SIZE_IN_WORDS * NUM_REGIONS, |
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57 REGION_SIZE_IN_WORDS * HeapWordSize); |
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58 // Check address calculation (bounds) |
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59 assert(array.bottom_address_mapped() == fake_heap, |
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60 err_msg("bottom mapped address should be "PTR_FORMAT", but is "PTR_FORMAT, fake_heap, array.bottom_address_mapped())); |
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61 assert(array.end_address_mapped() == (fake_heap + REGION_SIZE_IN_WORDS * NUM_REGIONS), "must be"); |
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62 |
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63 int* bottom = array.address_mapped_to(fake_heap); |
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64 assert((void*)bottom == (void*) array.base(), "must be"); |
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65 int* end = array.address_mapped_to(fake_heap + REGION_SIZE_IN_WORDS * NUM_REGIONS); |
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66 assert((void*)end == (void*)(array.base() + array.length()), "must be"); |
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67 // The entire array should contain default value elements |
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68 for (int* current = bottom; current < end; current++) { |
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69 assert(*current == array.default_value(), "must be"); |
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70 } |
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71 |
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72 // Test setting values in the table |
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73 |
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74 HeapWord* region_start_address = fake_heap + REGION_SIZE_IN_WORDS * (NUM_REGIONS / 2); |
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75 HeapWord* region_end_address = fake_heap + (REGION_SIZE_IN_WORDS * (NUM_REGIONS / 2) + REGION_SIZE_IN_WORDS - 1); |
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76 |
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77 // Set/get by address tests: invert some value; first retrieve one |
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78 int actual_value = array.get_by_index(NUM_REGIONS / 2); |
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79 array.set_by_index(NUM_REGIONS / 2, ~actual_value); |
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80 // Get the same value by address, should correspond to the start of the "region" |
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81 int value = array.get_by_address(region_start_address); |
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82 assert(value == ~actual_value, "must be"); |
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83 // Get the same value by address, at one HeapWord before the start |
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84 value = array.get_by_address(region_start_address - 1); |
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85 assert(value == array.default_value(), "must be"); |
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86 // Get the same value by address, at the end of the "region" |
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87 value = array.get_by_address(region_end_address); |
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88 assert(value == ~actual_value, "must be"); |
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89 // Make sure the next value maps to another index |
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90 value = array.get_by_address(region_end_address + 1); |
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91 assert(value == array.default_value(), "must be"); |
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92 |
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93 // Reset the value in the array |
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94 array.set_by_address(region_start_address + (region_end_address - region_start_address) / 2, actual_value); |
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95 |
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96 // The entire array should have the default value again |
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97 for (int* current = bottom; current < end; current++) { |
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98 assert(*current == array.default_value(), "must be"); |
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99 } |
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100 |
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101 // Set/get by index tests: invert some value |
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102 idx_t index = NUM_REGIONS / 2; |
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103 actual_value = array.get_by_index(index); |
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104 array.set_by_index(index, ~actual_value); |
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105 |
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106 value = array.get_by_index(index); |
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107 assert(value == ~actual_value, "must be"); |
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108 |
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109 value = array.get_by_index(index - 1); |
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110 assert(value == array.default_value(), "must be"); |
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111 |
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112 value = array.get_by_index(index + 1); |
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113 assert(value == array.default_value(), "must be"); |
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114 |
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115 array.set_by_index(0, 0); |
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116 value = array.get_by_index(0); |
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117 assert(value == 0, "must be"); |
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118 |
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119 array.set_by_index(array.length() - 1, 0); |
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120 value = array.get_by_index(array.length() - 1); |
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121 assert(value == 0, "must be"); |
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122 |
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123 array.set_by_index(index, 0); |
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124 |
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125 // The array should have three zeros, and default values otherwise |
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126 size_t num_zeros = 0; |
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127 for (int* current = bottom; current < end; current++) { |
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128 assert(*current == array.default_value() || *current == 0, "must be"); |
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129 if (*current == 0) { |
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130 num_zeros++; |
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131 } |
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132 } |
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133 assert(num_zeros == 3, "must be"); |
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134 } |
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135 }; |
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136 |
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137 void TestG1BiasedArray_test() { |
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138 TestMappedArray::test_biasedarray(); |
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139 } |
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140 |
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141 #endif |