Mercurial > hg > truffle
annotate src/share/vm/services/g1MemoryPool.cpp @ 1721:413ad0331a0c
6977924: Changes for 6975078 produce build error with certain gcc versions
Summary: The changes introduced for 6975078 assign badHeapOopVal to the _allocation field in the ResourceObj class. In 32 bit linux builds with certain versions of gcc this assignment will be flagged as an error while compiling allocation.cpp. In 32 bit builds the constant value badHeapOopVal (which is cast to an intptr_t) is negative. The _allocation field is typed as an unsigned intptr_t and gcc catches this as an error.
Reviewed-by: jcoomes, ysr, phh
| author | johnc |
|---|---|
| date | Wed, 18 Aug 2010 10:59:06 -0700 |
| parents | c18cbe5936b8 |
| children | e967bad2a9ab |
| rev | line source |
|---|---|
| 1089 | 1 /* |
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2 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
| 1089 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 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. |
| 1089 | 22 * |
| 23 */ | |
| 24 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_g1MemoryPool.cpp.incl" | |
| 27 | |
| 28 G1MemoryPoolSuper::G1MemoryPoolSuper(G1CollectedHeap* g1h, | |
| 29 const char* name, | |
| 30 size_t init_size, | |
| 31 size_t max_size, | |
| 32 bool support_usage_threshold) : | |
| 33 _g1h(g1h), CollectedMemoryPool(name, | |
| 34 MemoryPool::Heap, | |
| 35 init_size, | |
| 36 max_size, | |
| 37 support_usage_threshold) { | |
| 38 assert(UseG1GC, "sanity"); | |
| 39 } | |
| 40 | |
| 41 // See the comment at the top of g1MemoryPool.hpp | |
| 42 size_t G1MemoryPoolSuper::eden_space_committed(G1CollectedHeap* g1h) { | |
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43 return MAX2(eden_space_used(g1h), (size_t) HeapRegion::GrainBytes); |
| 1089 | 44 } |
| 45 | |
| 46 // See the comment at the top of g1MemoryPool.hpp | |
| 47 size_t G1MemoryPoolSuper::eden_space_used(G1CollectedHeap* g1h) { | |
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48 size_t young_list_length = g1h->young_list()->length(); |
| 1089 | 49 size_t eden_used = young_list_length * HeapRegion::GrainBytes; |
| 50 size_t survivor_used = survivor_space_used(g1h); | |
| 51 eden_used = subtract_up_to_zero(eden_used, survivor_used); | |
| 52 return eden_used; | |
| 53 } | |
| 54 | |
| 55 // See the comment at the top of g1MemoryPool.hpp | |
| 56 size_t G1MemoryPoolSuper::eden_space_max(G1CollectedHeap* g1h) { | |
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57 // This should ensure that it returns a value no smaller than the |
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58 // region size. Currently, eden_space_committed() guarantees that. |
| 1089 | 59 return eden_space_committed(g1h); |
| 60 } | |
| 61 | |
| 62 // See the comment at the top of g1MemoryPool.hpp | |
| 63 size_t G1MemoryPoolSuper::survivor_space_committed(G1CollectedHeap* g1h) { | |
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64 return MAX2(survivor_space_used(g1h), (size_t) HeapRegion::GrainBytes); |
| 1089 | 65 } |
| 66 | |
| 67 // See the comment at the top of g1MemoryPool.hpp | |
| 68 size_t G1MemoryPoolSuper::survivor_space_used(G1CollectedHeap* g1h) { | |
| 69 size_t survivor_num = g1h->g1_policy()->recorded_survivor_regions(); | |
| 70 size_t survivor_used = survivor_num * HeapRegion::GrainBytes; | |
| 71 return survivor_used; | |
| 72 } | |
| 73 | |
| 74 // See the comment at the top of g1MemoryPool.hpp | |
| 75 size_t G1MemoryPoolSuper::survivor_space_max(G1CollectedHeap* g1h) { | |
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76 // This should ensure that it returns a value no smaller than the |
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77 // region size. Currently, survivor_space_committed() guarantees that. |
| 1089 | 78 return survivor_space_committed(g1h); |
| 79 } | |
| 80 | |
| 81 // See the comment at the top of g1MemoryPool.hpp | |
| 82 size_t G1MemoryPoolSuper::old_space_committed(G1CollectedHeap* g1h) { | |
| 83 size_t committed = overall_committed(g1h); | |
| 84 size_t eden_committed = eden_space_committed(g1h); | |
| 85 size_t survivor_committed = survivor_space_committed(g1h); | |
| 86 committed = subtract_up_to_zero(committed, eden_committed); | |
| 87 committed = subtract_up_to_zero(committed, survivor_committed); | |
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88 committed = MAX2(committed, (size_t) HeapRegion::GrainBytes); |
| 1089 | 89 return committed; |
| 90 } | |
| 91 | |
| 92 // See the comment at the top of g1MemoryPool.hpp | |
| 93 size_t G1MemoryPoolSuper::old_space_used(G1CollectedHeap* g1h) { | |
| 94 size_t used = overall_used(g1h); | |
| 95 size_t eden_used = eden_space_used(g1h); | |
| 96 size_t survivor_used = survivor_space_used(g1h); | |
| 97 used = subtract_up_to_zero(used, eden_used); | |
| 98 used = subtract_up_to_zero(used, survivor_used); | |
| 99 return used; | |
| 100 } | |
| 101 | |
| 102 // See the comment at the top of g1MemoryPool.hpp | |
| 103 size_t G1MemoryPoolSuper::old_space_max(G1CollectedHeap* g1h) { | |
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104 size_t max = overall_max(g1h); |
| 1089 | 105 size_t eden_max = eden_space_max(g1h); |
| 106 size_t survivor_max = survivor_space_max(g1h); | |
| 107 max = subtract_up_to_zero(max, eden_max); | |
| 108 max = subtract_up_to_zero(max, survivor_max); | |
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109 max = MAX2(max, (size_t) HeapRegion::GrainBytes); |
| 1089 | 110 return max; |
| 111 } | |
| 112 | |
| 113 G1EdenPool::G1EdenPool(G1CollectedHeap* g1h) : | |
| 114 G1MemoryPoolSuper(g1h, | |
| 115 "G1 Eden", | |
| 116 eden_space_committed(g1h), /* init_size */ | |
| 117 eden_space_max(g1h), /* max_size */ | |
| 118 false /* support_usage_threshold */) { | |
| 119 } | |
| 120 | |
| 121 MemoryUsage G1EdenPool::get_memory_usage() { | |
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122 size_t initial_sz = initial_size(); |
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123 size_t max_sz = max_size(); |
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124 size_t used = used_in_bytes(); |
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125 size_t committed = eden_space_committed(_g1h); |
| 1089 | 126 |
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127 return MemoryUsage(initial_sz, used, committed, max_sz); |
| 1089 | 128 } |
| 129 | |
| 130 G1SurvivorPool::G1SurvivorPool(G1CollectedHeap* g1h) : | |
| 131 G1MemoryPoolSuper(g1h, | |
| 132 "G1 Survivor", | |
| 133 survivor_space_committed(g1h), /* init_size */ | |
| 134 survivor_space_max(g1h), /* max_size */ | |
| 135 false /* support_usage_threshold */) { | |
| 136 } | |
| 137 | |
| 138 MemoryUsage G1SurvivorPool::get_memory_usage() { | |
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139 size_t initial_sz = initial_size(); |
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140 size_t max_sz = max_size(); |
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141 size_t used = used_in_bytes(); |
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142 size_t committed = survivor_space_committed(_g1h); |
| 1089 | 143 |
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144 return MemoryUsage(initial_sz, used, committed, max_sz); |
| 1089 | 145 } |
| 146 | |
| 147 G1OldGenPool::G1OldGenPool(G1CollectedHeap* g1h) : | |
| 148 G1MemoryPoolSuper(g1h, | |
| 149 "G1 Old Gen", | |
| 150 old_space_committed(g1h), /* init_size */ | |
| 151 old_space_max(g1h), /* max_size */ | |
| 152 true /* support_usage_threshold */) { | |
| 153 } | |
| 154 | |
| 155 MemoryUsage G1OldGenPool::get_memory_usage() { | |
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156 size_t initial_sz = initial_size(); |
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157 size_t max_sz = max_size(); |
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158 size_t used = used_in_bytes(); |
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159 size_t committed = old_space_committed(_g1h); |
| 1089 | 160 |
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161 return MemoryUsage(initial_sz, used, committed, max_sz); |
| 1089 | 162 } |