Mercurial > hg > graal-compiler
annotate src/share/vm/memory/allocation.inline.hpp @ 20619:b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
Reviewed-by: mgerdin, coleenp, bdelsart
author | stefank |
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date | Thu, 02 Oct 2014 10:55:36 +0200 |
parents | 833b0f92429a |
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0 | 1 /* |
20360 | 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
0 | 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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP |
26 #define SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP | |
27 | |
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28 #include "runtime/atomic.inline.hpp" |
1972 | 29 #include "runtime/os.hpp" |
20360 | 30 #include "services/memTracker.hpp" |
1972 | 31 |
0 | 32 // Explicit C-heap memory management |
33 | |
34 void trace_heap_malloc(size_t size, const char* name, void *p); | |
35 void trace_heap_free(void *p); | |
36 | |
2255 | 37 #ifndef PRODUCT |
2250 | 38 // Increments unsigned long value for statistics (not atomic on MP). |
39 inline void inc_stat_counter(volatile julong* dest, julong add_value) { | |
2255 | 40 #if defined(SPARC) || defined(X86) |
41 // Sparc and X86 have atomic jlong (8 bytes) instructions | |
2250 | 42 julong value = Atomic::load((volatile jlong*)dest); |
43 value += add_value; | |
44 Atomic::store((jlong)value, (volatile jlong*)dest); | |
2255 | 45 #else |
46 // possible word-tearing during load/store | |
47 *dest += add_value; | |
48 #endif | |
2250 | 49 } |
2255 | 50 #endif |
0 | 51 |
52 // allocate using malloc; will fail if no memory available | |
20360 | 53 inline char* AllocateHeap(size_t size, MEMFLAGS flags, |
54 const NativeCallStack& stack, | |
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55 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) { |
20360 | 56 char* p = (char*) os::malloc(size, flags, stack); |
0 | 57 #ifdef ASSERT |
6197 | 58 if (PrintMallocFree) trace_heap_malloc(size, "AllocateHeap", p); |
0 | 59 #endif |
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60 if (p == NULL && alloc_failmode == AllocFailStrategy::EXIT_OOM) { |
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61 vm_exit_out_of_memory(size, OOM_MALLOC_ERROR, "AllocateHeap"); |
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62 } |
6197 | 63 return p; |
64 } | |
20360 | 65 inline char* AllocateHeap(size_t size, MEMFLAGS flags, |
66 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) { | |
67 return AllocateHeap(size, flags, CURRENT_PC, alloc_failmode); | |
68 } | |
6197 | 69 |
20360 | 70 inline char* ReallocateHeap(char *old, size_t size, MEMFLAGS flag, |
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71 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) { |
20360 | 72 char* p = (char*) os::realloc(old, size, flag, CURRENT_PC); |
6197 | 73 #ifdef ASSERT |
74 if (PrintMallocFree) trace_heap_malloc(size, "ReallocateHeap", p); | |
75 #endif | |
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76 if (p == NULL && alloc_failmode == AllocFailStrategy::EXIT_OOM) { |
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77 vm_exit_out_of_memory(size, OOM_MALLOC_ERROR, "ReallocateHeap"); |
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78 } |
0 | 79 return p; |
80 } | |
81 | |
6197 | 82 inline void FreeHeap(void* p, MEMFLAGS memflags = mtInternal) { |
0 | 83 #ifdef ASSERT |
84 if (PrintMallocFree) trace_heap_free(p); | |
85 #endif | |
6197 | 86 os::free(p, memflags); |
0 | 87 } |
1972 | 88 |
6197 | 89 |
90 template <MEMFLAGS F> void* CHeapObj<F>::operator new(size_t size, | |
20360 | 91 const NativeCallStack& stack) throw() { |
92 void* p = (void*)AllocateHeap(size, F, stack); | |
93 #ifdef ASSERT | |
94 if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p); | |
95 #endif | |
96 return p; | |
97 } | |
98 | |
99 template <MEMFLAGS F> void* CHeapObj<F>::operator new(size_t size) throw() { | |
100 return CHeapObj<F>::operator new(size, CALLER_PC); | |
101 } | |
102 | |
103 template <MEMFLAGS F> void* CHeapObj<F>::operator new (size_t size, | |
104 const std::nothrow_t& nothrow_constant, const NativeCallStack& stack) throw() { | |
105 void* p = (void*)AllocateHeap(size, F, stack, | |
106 AllocFailStrategy::RETURN_NULL); | |
10135 | 107 #ifdef ASSERT |
6197 | 108 if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p); |
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109 #endif |
10135 | 110 return p; |
6197 | 111 } |
112 | |
113 template <MEMFLAGS F> void* CHeapObj<F>::operator new (size_t size, | |
20360 | 114 const std::nothrow_t& nothrow_constant) throw() { |
115 return CHeapObj<F>::operator new(size, nothrow_constant, CALLER_PC); | |
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116 } |
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117 |
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118 template <MEMFLAGS F> void* CHeapObj<F>::operator new [](size_t size, |
20360 | 119 const NativeCallStack& stack) throw() { |
120 return CHeapObj<F>::operator new(size, stack); | |
121 } | |
122 | |
123 template <MEMFLAGS F> void* CHeapObj<F>::operator new [](size_t size) | |
124 throw() { | |
125 return CHeapObj<F>::operator new(size, CALLER_PC); | |
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126 } |
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127 |
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128 template <MEMFLAGS F> void* CHeapObj<F>::operator new [](size_t size, |
20360 | 129 const std::nothrow_t& nothrow_constant, const NativeCallStack& stack) throw() { |
130 return CHeapObj<F>::operator new(size, nothrow_constant, stack); | |
131 } | |
132 | |
133 template <MEMFLAGS F> void* CHeapObj<F>::operator new [](size_t size, | |
134 const std::nothrow_t& nothrow_constant) throw() { | |
135 return CHeapObj<F>::operator new(size, nothrow_constant, CALLER_PC); | |
6197 | 136 } |
137 | |
138 template <MEMFLAGS F> void CHeapObj<F>::operator delete(void* p){ | |
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139 FreeHeap(p, F); |
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140 } |
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141 |
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142 template <MEMFLAGS F> void CHeapObj<F>::operator delete [](void* p){ |
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143 FreeHeap(p, F); |
6197 | 144 } |
145 | |
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146 template <class E, MEMFLAGS F> |
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147 E* ArrayAllocator<E, F>::allocate(size_t length) { |
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148 assert(_addr == NULL, "Already in use"); |
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149 |
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150 _size = sizeof(E) * length; |
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151 _use_malloc = _size < ArrayAllocatorMallocLimit; |
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152 |
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153 if (_use_malloc) { |
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154 _addr = AllocateHeap(_size, F); |
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155 if (_addr == NULL && _size >= (size_t)os::vm_allocation_granularity()) { |
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156 // malloc failed let's try with mmap instead |
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157 _use_malloc = false; |
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158 } else { |
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159 return (E*)_addr; |
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160 } |
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161 } |
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162 |
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163 int alignment = os::vm_allocation_granularity(); |
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164 _size = align_size_up(_size, alignment); |
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165 |
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166 _addr = os::reserve_memory(_size, NULL, alignment, F); |
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167 if (_addr == NULL) { |
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168 vm_exit_out_of_memory(_size, OOM_MMAP_ERROR, "Allocator (reserve)"); |
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169 } |
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170 |
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171 os::commit_memory_or_exit(_addr, _size, !ExecMem, "Allocator (commit)"); |
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172 |
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173 return (E*)_addr; |
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174 } |
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175 |
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176 template<class E, MEMFLAGS F> |
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177 void ArrayAllocator<E, F>::free() { |
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178 if (_addr != NULL) { |
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179 if (_use_malloc) { |
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180 FreeHeap(_addr, F); |
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181 } else { |
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182 os::release_memory(_addr, _size); |
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183 } |
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184 _addr = NULL; |
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185 } |
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186 } |
6197 | 187 |
1972 | 188 #endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP |