Mercurial > hg > truffle
annotate src/share/vm/prims/whitebox.cpp @ 20630:787c9c28311f
8058251: assert(_count > 0) failed: Negative counter when running runtime/NMT/MallocTrackingVerify.java
Summary: Fixed an issue when overflowing the MallocSite hash table bucket
Reviewed-by: coleenp, gtriantafill
author | ctornqvi |
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date | Tue, 11 Nov 2014 10:48:06 -0800 |
parents | 80260967f994 |
children | 887a7cedb892 |
rev | line source |
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5915 | 1 /* |
17817 | 2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. |
5915 | 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 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #include "precompiled.hpp" | |
26 | |
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27 #include "memory/metadataFactory.hpp" |
5915 | 28 #include "memory/universe.hpp" |
29 #include "oops/oop.inline.hpp" | |
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30 |
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31 #include "classfile/symbolTable.hpp" |
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32 #include "classfile/classLoaderData.hpp" |
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33 |
5915 | 34 #include "prims/whitebox.hpp" |
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35 #include "prims/wbtestmethods/parserTests.hpp" |
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36 |
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37 #include "runtime/arguments.hpp" |
5915 | 38 #include "runtime/interfaceSupport.hpp" |
39 #include "runtime/os.hpp" | |
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40 #include "utilities/array.hpp" |
5915 | 41 #include "utilities/debug.hpp" |
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42 #include "utilities/macros.hpp" |
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43 #include "utilities/exceptions.hpp" |
5915 | 44 |
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45 #if INCLUDE_ALL_GCS |
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46 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp" |
5915 | 47 #include "gc_implementation/g1/concurrentMark.hpp" |
48 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
49 #include "gc_implementation/g1/heapRegionRemSet.hpp" | |
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50 #endif // INCLUDE_ALL_GCS |
5915 | 51 |
20360 | 52 #if INCLUDE_NMT |
53 #include "services/mallocSiteTable.hpp" | |
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54 #include "services/memTracker.hpp" |
20360 | 55 #include "utilities/nativeCallStack.hpp" |
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56 #endif // INCLUDE_NMT |
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57 |
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58 #include "compiler/compileBroker.hpp" |
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59 #include "runtime/compilationPolicy.hpp" |
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60 |
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61 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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62 |
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63 #define SIZE_T_MAX_VALUE ((size_t) -1) |
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64 |
5915 | 65 bool WhiteBox::_used = false; |
66 | |
67 WB_ENTRY(jlong, WB_GetObjectAddress(JNIEnv* env, jobject o, jobject obj)) | |
68 return (jlong)(void*)JNIHandles::resolve(obj); | |
69 WB_END | |
70 | |
71 WB_ENTRY(jint, WB_GetHeapOopSize(JNIEnv* env, jobject o)) | |
72 return heapOopSize; | |
73 WB_END | |
74 | |
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75 |
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76 class WBIsKlassAliveClosure : public KlassClosure { |
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77 Symbol* _name; |
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78 bool _found; |
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79 public: |
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80 WBIsKlassAliveClosure(Symbol* name) : _name(name), _found(false) {} |
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81 |
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82 void do_klass(Klass* k) { |
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83 if (_found) return; |
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84 Symbol* ksym = k->name(); |
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85 if (ksym->fast_compare(_name) == 0) { |
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86 _found = true; |
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87 } |
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88 } |
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89 |
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90 bool found() const { |
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91 return _found; |
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92 } |
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93 }; |
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94 |
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95 WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name)) |
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96 Handle h_name = JNIHandles::resolve(name); |
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97 if (h_name.is_null()) return false; |
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98 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false); |
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99 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return |
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100 |
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101 WBIsKlassAliveClosure closure(sym); |
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102 ClassLoaderDataGraph::classes_do(&closure); |
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103 |
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104 return closure.found(); |
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105 WB_END |
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106 |
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107 WB_ENTRY(jboolean, WB_ClassKnownToNotExist(JNIEnv* env, jobject o, jobject loader, jstring name)) |
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108 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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109 const char* class_name = env->GetStringUTFChars(name, NULL); |
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110 jboolean result = JVM_KnownToNotExist(env, loader, class_name); |
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111 env->ReleaseStringUTFChars(name, class_name); |
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112 return result; |
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113 WB_END |
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114 |
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115 WB_ENTRY(jobjectArray, WB_GetLookupCacheURLs(JNIEnv* env, jobject o, jobject loader)) |
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116 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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117 return JVM_GetResourceLookupCacheURLs(env, loader); |
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118 WB_END |
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119 |
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120 WB_ENTRY(jintArray, WB_GetLookupCacheMatches(JNIEnv* env, jobject o, jobject loader, jstring name)) |
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121 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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122 const char* resource_name = env->GetStringUTFChars(name, NULL); |
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123 jintArray result = JVM_GetResourceLookupCache(env, loader, resource_name); |
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124 |
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125 env->ReleaseStringUTFChars(name, resource_name); |
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126 return result; |
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127 WB_END |
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128 |
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129 WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) { |
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130 return (jlong)Arguments::max_heap_for_compressed_oops(); |
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131 } |
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132 WB_END |
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133 |
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134 WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) { |
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135 CollectorPolicy * p = Universe::heap()->collector_policy(); |
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136 gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap " |
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137 SIZE_FORMAT" Maximum heap "SIZE_FORMAT" Min alignment "SIZE_FORMAT" Max alignment "SIZE_FORMAT, |
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138 p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(), |
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139 p->space_alignment(), p->heap_alignment()); |
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140 } |
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141 WB_END |
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142 |
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143 #ifndef PRODUCT |
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144 // Forward declaration |
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145 void TestReservedSpace_test(); |
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146 void TestReserveMemorySpecial_test(); |
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147 void TestVirtualSpace_test(); |
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148 void TestMetaspaceAux_test(); |
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149 #endif |
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150 |
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151 WB_ENTRY(void, WB_RunMemoryUnitTests(JNIEnv* env, jobject o)) |
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152 #ifndef PRODUCT |
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153 TestReservedSpace_test(); |
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154 TestReserveMemorySpecial_test(); |
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155 TestVirtualSpace_test(); |
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156 TestMetaspaceAux_test(); |
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157 #endif |
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158 WB_END |
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159 |
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160 WB_ENTRY(void, WB_ReadFromNoaccessArea(JNIEnv* env, jobject o)) |
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161 size_t granularity = os::vm_allocation_granularity(); |
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162 ReservedHeapSpace rhs(100 * granularity, granularity, false, NULL); |
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163 VirtualSpace vs; |
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164 vs.initialize(rhs, 50 * granularity); |
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165 |
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166 //Check if constraints are complied |
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167 if (!( UseCompressedOops && rhs.base() != NULL && |
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168 Universe::narrow_oop_base() != NULL && |
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169 Universe::narrow_oop_use_implicit_null_checks() )) { |
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170 tty->print_cr("WB_ReadFromNoaccessArea method is useless:\n " |
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171 "\tUseCompressedOops is %d\n" |
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172 "\trhs.base() is "PTR_FORMAT"\n" |
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173 "\tUniverse::narrow_oop_base() is "PTR_FORMAT"\n" |
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174 "\tUniverse::narrow_oop_use_implicit_null_checks() is %d", |
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175 UseCompressedOops, |
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176 rhs.base(), |
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177 Universe::narrow_oop_base(), |
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178 Universe::narrow_oop_use_implicit_null_checks()); |
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179 return; |
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180 } |
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181 tty->print_cr("Reading from no access area... "); |
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182 tty->print_cr("*(vs.low_boundary() - rhs.noaccess_prefix() / 2 ) = %c", |
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183 *(vs.low_boundary() - rhs.noaccess_prefix() / 2 )); |
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184 WB_END |
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185 |
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186 static jint wb_stress_virtual_space_resize(size_t reserved_space_size, |
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187 size_t magnitude, size_t iterations) { |
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188 size_t granularity = os::vm_allocation_granularity(); |
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189 ReservedHeapSpace rhs(reserved_space_size * granularity, granularity, false, NULL); |
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190 VirtualSpace vs; |
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191 if (!vs.initialize(rhs, 0)) { |
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192 tty->print_cr("Failed to initialize VirtualSpace. Can't proceed."); |
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193 return 3; |
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194 } |
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195 |
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196 long seed = os::random(); |
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197 tty->print_cr("Random seed is %ld", seed); |
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198 os::init_random(seed); |
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199 |
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200 for (size_t i = 0; i < iterations; i++) { |
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201 |
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202 // Whether we will shrink or grow |
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203 bool shrink = os::random() % 2L == 0; |
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204 |
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205 // Get random delta to resize virtual space |
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206 size_t delta = (size_t)os::random() % magnitude; |
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207 |
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208 // If we are about to shrink virtual space below zero, then expand instead |
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209 if (shrink && vs.committed_size() < delta) { |
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210 shrink = false; |
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211 } |
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212 |
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213 // Resizing by delta |
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214 if (shrink) { |
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215 vs.shrink_by(delta); |
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216 } else { |
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217 // If expanding fails expand_by will silently return false |
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218 vs.expand_by(delta, true); |
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219 } |
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220 } |
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221 return 0; |
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222 } |
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223 |
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224 WB_ENTRY(jint, WB_StressVirtualSpaceResize(JNIEnv* env, jobject o, |
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225 jlong reserved_space_size, jlong magnitude, jlong iterations)) |
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226 tty->print_cr("reservedSpaceSize="JLONG_FORMAT", magnitude="JLONG_FORMAT", " |
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227 "iterations="JLONG_FORMAT"\n", reserved_space_size, magnitude, |
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228 iterations); |
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229 if (reserved_space_size < 0 || magnitude < 0 || iterations < 0) { |
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230 tty->print_cr("One of variables printed above is negative. Can't proceed.\n"); |
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231 return 1; |
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232 } |
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233 |
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234 // sizeof(size_t) depends on whether OS is 32bit or 64bit. sizeof(jlong) is |
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235 // always 8 byte. That's why we should avoid overflow in case of 32bit platform. |
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236 if (sizeof(size_t) < sizeof(jlong)) { |
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237 jlong size_t_max_value = (jlong) SIZE_T_MAX_VALUE; |
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238 if (reserved_space_size > size_t_max_value || magnitude > size_t_max_value |
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239 || iterations > size_t_max_value) { |
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240 tty->print_cr("One of variables printed above overflows size_t. Can't proceed.\n"); |
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241 return 2; |
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242 } |
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243 } |
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244 |
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245 return wb_stress_virtual_space_resize((size_t) reserved_space_size, |
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246 (size_t) magnitude, (size_t) iterations); |
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247 WB_END |
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248 |
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249 WB_ENTRY(jboolean, WB_isObjectInOldGen(JNIEnv* env, jobject o, jobject obj)) |
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250 oop p = JNIHandles::resolve(obj); |
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251 #if INCLUDE_ALL_GCS |
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252 if (UseG1GC) { |
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253 G1CollectedHeap* g1 = G1CollectedHeap::heap(); |
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254 const HeapRegion* hr = g1->heap_region_containing(p); |
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255 if (hr == NULL) { |
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256 return false; |
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257 } |
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258 return !(hr->is_young()); |
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259 } else if (UseParallelGC) { |
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260 ParallelScavengeHeap* psh = ParallelScavengeHeap::heap(); |
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261 return !psh->is_in_young(p); |
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262 } |
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263 #endif // INCLUDE_ALL_GCS |
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264 GenCollectedHeap* gch = GenCollectedHeap::heap(); |
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265 return !gch->is_in_young(p); |
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266 WB_END |
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267 |
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268 WB_ENTRY(jlong, WB_GetObjectSize(JNIEnv* env, jobject o, jobject obj)) |
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269 oop p = JNIHandles::resolve(obj); |
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270 return p->size() * HeapWordSize; |
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271 WB_END |
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272 |
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273 #if INCLUDE_ALL_GCS |
5915 | 274 WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj)) |
275 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
276 oop result = JNIHandles::resolve(obj); | |
277 const HeapRegion* hr = g1->heap_region_containing(result); | |
278 return hr->isHumongous(); | |
279 WB_END | |
280 | |
281 WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o)) | |
282 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
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283 size_t nr = g1->num_free_regions(); |
5915 | 284 return (jlong)nr; |
285 WB_END | |
286 | |
287 WB_ENTRY(jboolean, WB_G1InConcurrentMark(JNIEnv* env, jobject o)) | |
288 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
289 ConcurrentMark* cm = g1->concurrent_mark(); | |
290 return cm->concurrent_marking_in_progress(); | |
291 WB_END | |
292 | |
293 WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o)) | |
294 return (jint)HeapRegion::GrainBytes; | |
295 WB_END | |
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296 #endif // INCLUDE_ALL_GCS |
5915 | 297 |
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298 #if INCLUDE_NMT |
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299 // Alloc memory using the test memory type so that we can use that to see if |
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300 // NMT picks it up correctly |
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301 WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size)) |
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302 jlong addr = 0; |
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303 addr = (jlong)(uintptr_t)os::malloc(size, mtTest); |
20360 | 304 return addr; |
305 WB_END | |
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306 |
20360 | 307 // Alloc memory with pseudo call stack. The test can create psudo malloc |
308 // allocation site to stress the malloc tracking. | |
309 WB_ENTRY(jlong, WB_NMTMallocWithPseudoStack(JNIEnv* env, jobject o, jlong size, jint pseudo_stack)) | |
310 address pc = (address)(size_t)pseudo_stack; | |
311 NativeCallStack stack(&pc, 1); | |
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312 return (jlong)(uintptr_t)os::malloc(size, mtTest, stack); |
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313 WB_END |
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314 |
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315 // Free the memory allocated by NMTAllocTest |
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316 WB_ENTRY(void, WB_NMTFree(JNIEnv* env, jobject o, jlong mem)) |
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317 os::free((void*)(uintptr_t)mem, mtTest); |
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318 WB_END |
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319 |
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320 WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size)) |
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321 jlong addr = 0; |
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322 |
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323 addr = (jlong)(uintptr_t)os::reserve_memory(size); |
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324 MemTracker::record_virtual_memory_type((address)addr, mtTest); |
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325 |
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326 return addr; |
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327 WB_END |
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328 |
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329 |
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330 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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331 os::commit_memory((char *)(uintptr_t)addr, size, !ExecMem); |
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332 MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest); |
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333 WB_END |
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334 |
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335 WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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336 os::uncommit_memory((char *)(uintptr_t)addr, size); |
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337 WB_END |
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338 |
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339 WB_ENTRY(void, WB_NMTReleaseMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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340 os::release_memory((char *)(uintptr_t)addr, size); |
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341 WB_END |
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342 |
20360 | 343 WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env)) |
344 return MemTracker::tracking_level() == NMT_detail; | |
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345 WB_END |
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346 |
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347 WB_ENTRY(jboolean, WB_NMTChangeTrackingLevel(JNIEnv* env)) |
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348 // Test that we can downgrade NMT levels but not upgrade them. |
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349 if (MemTracker::tracking_level() == NMT_off) { |
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350 MemTracker::transition_to(NMT_off); |
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351 return MemTracker::tracking_level() == NMT_off; |
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352 } else { |
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353 assert(MemTracker::tracking_level() == NMT_detail, "Should start out as detail tracking"); |
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354 MemTracker::transition_to(NMT_summary); |
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355 assert(MemTracker::tracking_level() == NMT_summary, "Should be summary now"); |
20360 | 356 |
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357 // Can't go to detail once NMT is set to summary. |
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358 MemTracker::transition_to(NMT_detail); |
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359 assert(MemTracker::tracking_level() == NMT_summary, "Should still be summary now"); |
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360 |
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361 // Shutdown sets tracking level to minimal. |
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362 MemTracker::shutdown(); |
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363 assert(MemTracker::tracking_level() == NMT_minimal, "Should be minimal now"); |
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364 |
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365 // Once the tracking level is minimal, we cannot increase to summary. |
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366 // The code ignores this request instead of asserting because if the malloc site |
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367 // table overflows in another thread, it tries to change the code to summary. |
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368 MemTracker::transition_to(NMT_summary); |
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369 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); |
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370 |
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371 // Really can never go up to detail, verify that the code would never do this. |
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372 MemTracker::transition_to(NMT_detail); |
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373 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); |
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374 return MemTracker::tracking_level() == NMT_minimal; |
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375 } |
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376 WB_END |
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377 |
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378 WB_ENTRY(jint, WB_NMTGetHashSize(JNIEnv* env, jobject o)) |
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379 int hash_size = MallocSiteTable::hash_buckets(); |
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380 assert(hash_size > 0, "NMT hash_size should be > 0"); |
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381 return (jint)hash_size; |
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382 WB_END |
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383 #endif // INCLUDE_NMT |
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384 |
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385 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) { |
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386 assert(method != NULL, "method should not be null"); |
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387 ThreadToNativeFromVM ttn(thread); |
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388 return env->FromReflectedMethod(method); |
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389 } |
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390 |
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391 WB_ENTRY(void, WB_DeoptimizeAll(JNIEnv* env, jobject o)) |
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392 MutexLockerEx mu(Compile_lock); |
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393 CodeCache::mark_all_nmethods_for_deoptimization(); |
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394 VM_Deoptimize op; |
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395 VMThread::execute(&op); |
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396 WB_END |
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397 |
12073 | 398 WB_ENTRY(jint, WB_DeoptimizeMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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399 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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400 int result = 0; |
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401 CHECK_JNI_EXCEPTION_(env, result); |
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402 MutexLockerEx mu(Compile_lock); |
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403 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 404 if (is_osr) { |
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405 result += mh->mark_osr_nmethods(); |
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406 } else if (mh->code() != NULL) { |
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407 mh->code()->mark_for_deoptimization(); |
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408 ++result; |
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409 } |
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410 result += CodeCache::mark_for_deoptimization(mh()); |
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411 if (result > 0) { |
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412 VM_Deoptimize op; |
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413 VMThread::execute(&op); |
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414 } |
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415 return result; |
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416 WB_END |
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417 |
12073 | 418 WB_ENTRY(jboolean, WB_IsMethodCompiled(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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419 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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420 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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421 MutexLockerEx mu(Compile_lock); |
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422 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 423 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); |
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424 if (code == NULL) { |
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425 return JNI_FALSE; |
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426 } |
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427 return (code->is_alive() && !code->is_marked_for_deoptimization()); |
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428 WB_END |
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429 |
12073 | 430 WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) |
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431 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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432 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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433 MutexLockerEx mu(Compile_lock); |
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434 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 435 if (is_osr) { |
436 return CompilationPolicy::can_be_osr_compiled(mh, comp_level); | |
437 } else { | |
438 return CompilationPolicy::can_be_compiled(mh, comp_level); | |
439 } | |
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440 WB_END |
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441 |
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442 WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method)) |
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443 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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444 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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445 MutexLockerEx mu(Compile_lock); |
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446 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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447 return mh->queued_for_compilation(); |
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448 WB_END |
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449 |
12073 | 450 WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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451 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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452 CHECK_JNI_EXCEPTION_(env, CompLevel_none); |
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453 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 454 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); |
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455 return (code != NULL ? code->comp_level() : CompLevel_none); |
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456 WB_END |
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457 |
12073 | 458 WB_ENTRY(void, WB_MakeMethodNotCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) |
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459 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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460 CHECK_JNI_EXCEPTION(env); |
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461 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 462 if (is_osr) { |
463 mh->set_not_osr_compilable(comp_level, true /* report */, "WhiteBox"); | |
464 } else { | |
465 mh->set_not_compilable(comp_level, true /* report */, "WhiteBox"); | |
466 } | |
467 WB_END | |
468 | |
469 WB_ENTRY(jint, WB_GetMethodEntryBci(JNIEnv* env, jobject o, jobject method)) | |
470 jmethodID jmid = reflected_method_to_jmid(thread, env, method); | |
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471 CHECK_JNI_EXCEPTION_(env, InvocationEntryBci); |
12073 | 472 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
473 nmethod* code = mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false); | |
474 return (code != NULL && code->is_osr_method() ? code->osr_entry_bci() : InvocationEntryBci); | |
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475 WB_END |
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476 |
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477 WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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478 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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479 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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480 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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481 bool result = mh->dont_inline(); |
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482 mh->set_dont_inline(value == JNI_TRUE); |
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483 return result; |
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484 WB_END |
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485 |
12073 | 486 WB_ENTRY(jint, WB_GetCompileQueueSize(JNIEnv* env, jobject o, jint comp_level)) |
487 if (comp_level == CompLevel_any) { | |
488 return CompileBroker::queue_size(CompLevel_full_optimization) /* C2 */ + | |
489 CompileBroker::queue_size(CompLevel_full_profile) /* C1 */; | |
490 } else { | |
491 return CompileBroker::queue_size(comp_level); | |
492 } | |
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493 WB_END |
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494 |
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495 WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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496 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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497 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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498 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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499 bool result = mh->force_inline(); |
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500 mh->set_force_inline(value == JNI_TRUE); |
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501 return result; |
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502 WB_END |
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503 |
12073 | 504 WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level, jint bci)) |
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505 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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506 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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507 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 508 nmethod* nm = CompileBroker::compile_method(mh, bci, comp_level, mh, mh->invocation_count(), "WhiteBox", THREAD); |
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509 MutexLockerEx mu(Compile_lock); |
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510 return (mh->queued_for_compilation() || nm != NULL); |
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511 WB_END |
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512 |
17867 | 513 class VM_WhiteBoxOperation : public VM_Operation { |
514 public: | |
515 VM_WhiteBoxOperation() { } | |
516 VMOp_Type type() const { return VMOp_WhiteBoxOperation; } | |
517 bool allow_nested_vm_operations() const { return true; } | |
518 }; | |
519 | |
520 class AlwaysFalseClosure : public BoolObjectClosure { | |
521 public: | |
522 bool do_object_b(oop p) { return false; } | |
523 }; | |
524 | |
525 static AlwaysFalseClosure always_false; | |
526 | |
527 class VM_WhiteBoxCleanMethodData : public VM_WhiteBoxOperation { | |
528 public: | |
529 VM_WhiteBoxCleanMethodData(MethodData* mdo) : _mdo(mdo) { } | |
530 void doit() { | |
531 _mdo->clean_method_data(&always_false); | |
532 } | |
533 private: | |
534 MethodData* _mdo; | |
535 }; | |
536 | |
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537 WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method)) |
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538 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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539 CHECK_JNI_EXCEPTION(env); |
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540 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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541 MutexLockerEx mu(Compile_lock); |
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542 MethodData* mdo = mh->method_data(); |
10107 | 543 MethodCounters* mcs = mh->method_counters(); |
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544 |
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545 if (mdo != NULL) { |
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546 mdo->init(); |
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547 ResourceMark rm; |
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548 int arg_count = mdo->method()->size_of_parameters(); |
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549 for (int i = 0; i < arg_count; i++) { |
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550 mdo->set_arg_modified(i, 0); |
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551 } |
17867 | 552 VM_WhiteBoxCleanMethodData op(mdo); |
553 VMThread::execute(&op); | |
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554 } |
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555 |
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556 mh->clear_not_c1_compilable(); |
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557 mh->clear_not_c2_compilable(); |
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558 mh->clear_not_c2_osr_compilable(); |
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559 NOT_PRODUCT(mh->set_compiled_invocation_count(0)); |
10107 | 560 if (mcs != NULL) { |
561 mcs->backedge_counter()->init(); | |
562 mcs->invocation_counter()->init(); | |
563 mcs->set_interpreter_invocation_count(0); | |
564 mcs->set_interpreter_throwout_count(0); | |
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565 |
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566 #ifdef TIERED |
10107 | 567 mcs->set_rate(0.0F); |
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568 mh->set_prev_event_count(0); |
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569 mh->set_prev_time(0); |
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570 #endif |
10107 | 571 } |
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572 WB_END |
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573 |
20249 | 574 template <typename T> |
575 static bool GetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAt)(const char*, T*)) { | |
576 if (name == NULL) { | |
577 return false; | |
578 } | |
579 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
580 const char* flag_name = env->GetStringUTFChars(name, NULL); | |
581 bool result = (*TAt)(flag_name, value); | |
582 env->ReleaseStringUTFChars(name, flag_name); | |
583 return result; | |
584 } | |
585 | |
586 template <typename T> | |
587 static bool SetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAtPut)(const char*, T*, Flag::Flags)) { | |
588 if (name == NULL) { | |
589 return false; | |
590 } | |
591 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
592 const char* flag_name = env->GetStringUTFChars(name, NULL); | |
593 bool result = (*TAtPut)(flag_name, value, Flag::INTERNAL); | |
594 env->ReleaseStringUTFChars(name, flag_name); | |
595 return result; | |
596 } | |
597 | |
598 template <typename T> | |
599 static jobject box(JavaThread* thread, JNIEnv* env, Symbol* name, Symbol* sig, T value) { | |
600 ResourceMark rm(thread); | |
601 jclass clazz = env->FindClass(name->as_C_string()); | |
602 CHECK_JNI_EXCEPTION_(env, NULL); | |
603 jmethodID methodID = env->GetStaticMethodID(clazz, | |
604 vmSymbols::valueOf_name()->as_C_string(), | |
605 sig->as_C_string()); | |
606 CHECK_JNI_EXCEPTION_(env, NULL); | |
607 jobject result = env->CallStaticObjectMethod(clazz, methodID, value); | |
608 CHECK_JNI_EXCEPTION_(env, NULL); | |
609 return result; | |
610 } | |
611 | |
612 static jobject booleanBox(JavaThread* thread, JNIEnv* env, jboolean value) { | |
613 return box(thread, env, vmSymbols::java_lang_Boolean(), vmSymbols::Boolean_valueOf_signature(), value); | |
614 } | |
615 static jobject integerBox(JavaThread* thread, JNIEnv* env, jint value) { | |
616 return box(thread, env, vmSymbols::java_lang_Integer(), vmSymbols::Integer_valueOf_signature(), value); | |
617 } | |
618 static jobject longBox(JavaThread* thread, JNIEnv* env, jlong value) { | |
619 return box(thread, env, vmSymbols::java_lang_Long(), vmSymbols::Long_valueOf_signature(), value); | |
620 } | |
621 /* static jobject floatBox(JavaThread* thread, JNIEnv* env, jfloat value) { | |
622 return box(thread, env, vmSymbols::java_lang_Float(), vmSymbols::Float_valueOf_signature(), value); | |
623 }*/ | |
624 static jobject doubleBox(JavaThread* thread, JNIEnv* env, jdouble value) { | |
625 return box(thread, env, vmSymbols::java_lang_Double(), vmSymbols::Double_valueOf_signature(), value); | |
626 } | |
627 | |
628 WB_ENTRY(jobject, WB_GetBooleanVMFlag(JNIEnv* env, jobject o, jstring name)) | |
629 bool result; | |
630 if (GetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAt)) { | |
631 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
632 return booleanBox(thread, env, result); | |
633 } | |
634 return NULL; | |
635 WB_END | |
636 | |
637 WB_ENTRY(jobject, WB_GetIntxVMFlag(JNIEnv* env, jobject o, jstring name)) | |
638 intx result; | |
639 if (GetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAt)) { | |
640 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
641 return longBox(thread, env, result); | |
642 } | |
643 return NULL; | |
644 WB_END | |
645 | |
646 WB_ENTRY(jobject, WB_GetUintxVMFlag(JNIEnv* env, jobject o, jstring name)) | |
647 uintx result; | |
648 if (GetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAt)) { | |
649 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
650 return longBox(thread, env, result); | |
651 } | |
652 return NULL; | |
653 WB_END | |
654 | |
655 WB_ENTRY(jobject, WB_GetUint64VMFlag(JNIEnv* env, jobject o, jstring name)) | |
656 uint64_t result; | |
657 if (GetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAt)) { | |
658 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
659 return longBox(thread, env, result); | |
660 } | |
661 return NULL; | |
662 WB_END | |
663 | |
664 WB_ENTRY(jobject, WB_GetDoubleVMFlag(JNIEnv* env, jobject o, jstring name)) | |
665 double result; | |
666 if (GetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAt)) { | |
667 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
668 return doubleBox(thread, env, result); | |
669 } | |
670 return NULL; | |
671 WB_END | |
672 | |
673 WB_ENTRY(jstring, WB_GetStringVMFlag(JNIEnv* env, jobject o, jstring name)) | |
674 ccstr ccstrResult; | |
675 if (GetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAt)) { | |
676 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
677 jstring result = env->NewStringUTF(ccstrResult); | |
678 CHECK_JNI_EXCEPTION_(env, NULL); | |
679 return result; | |
680 } | |
681 return NULL; | |
682 WB_END | |
683 | |
684 WB_ENTRY(void, WB_SetBooleanVMFlag(JNIEnv* env, jobject o, jstring name, jboolean value)) | |
685 bool result = value == JNI_TRUE ? true : false; | |
686 SetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAtPut); | |
687 WB_END | |
688 | |
689 WB_ENTRY(void, WB_SetIntxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
690 intx result = value; | |
691 SetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAtPut); | |
692 WB_END | |
693 | |
694 WB_ENTRY(void, WB_SetUintxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
695 uintx result = value; | |
696 SetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAtPut); | |
697 WB_END | |
698 | |
699 WB_ENTRY(void, WB_SetUint64VMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
700 uint64_t result = value; | |
701 SetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAtPut); | |
702 WB_END | |
703 | |
704 WB_ENTRY(void, WB_SetDoubleVMFlag(JNIEnv* env, jobject o, jstring name, jdouble value)) | |
705 double result = value; | |
706 SetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAtPut); | |
707 WB_END | |
708 | |
709 WB_ENTRY(void, WB_SetStringVMFlag(JNIEnv* env, jobject o, jstring name, jstring value)) | |
710 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
711 const char* ccstrValue = (value == NULL) ? NULL : env->GetStringUTFChars(value, NULL); | |
712 ccstr ccstrResult = ccstrValue; | |
713 bool needFree; | |
714 { | |
715 ThreadInVMfromNative ttvfn(thread); // back to VM | |
716 needFree = SetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAtPut); | |
717 } | |
718 if (value != NULL) { | |
719 env->ReleaseStringUTFChars(value, ccstrValue); | |
720 } | |
721 if (needFree) { | |
722 FREE_C_HEAP_ARRAY(char, ccstrResult, mtInternal); | |
723 } | |
724 WB_END | |
725 | |
726 | |
8850 | 727 WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString)) |
728 ResourceMark rm(THREAD); | |
729 int len; | |
10155
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730 jchar* name = java_lang_String::as_unicode_string(JNIHandles::resolve(javaString), len, CHECK_false); |
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8011773: Some tests on Interned String crashed JVM with OOM
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731 return (StringTable::lookup(name, len) != NULL); |
8850 | 732 WB_END |
733 | |
734 WB_ENTRY(void, WB_FullGC(JNIEnv* env, jobject o)) | |
735 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(true); | |
736 Universe::heap()->collect(GCCause::_last_ditch_collection); | |
20451 | 737 #if INCLUDE_ALL_GCS |
738 if (UseG1GC) { | |
739 // Needs to be cleared explicitly for G1 | |
740 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(false); | |
741 } | |
742 #endif // INCLUDE_ALL_GCS | |
8850 | 743 WB_END |
744 | |
20357
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8055098: WB API should be extended to provide information about size and age of object.
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745 WB_ENTRY(void, WB_YoungGC(JNIEnv* env, jobject o)) |
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|
746 Universe::heap()->collect(GCCause::_wb_young_gc); |
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747 WB_END |
10157 | 748 |
10341
f54c85acc043
8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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|
749 WB_ENTRY(void, WB_ReadReservedMemory(JNIEnv* env, jobject o)) |
f54c85acc043
8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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|
750 // static+volatile in order to force the read to happen |
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8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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|
751 // (not be eliminated by the compiler) |
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8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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|
752 static char c; |
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8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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|
753 static volatile char* p; |
f54c85acc043
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|
754 |
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8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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|
755 p = os::reserve_memory(os::vm_allocation_granularity(), NULL, 0); |
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|
756 if (p == NULL) { |
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|
757 THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(), "Failed to reserve memory"); |
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|
758 } |
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diff
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|
759 |
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|
760 c = *p; |
10157 | 761 WB_END |
762 | |
17778
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763 WB_ENTRY(jstring, WB_GetCPUFeatures(JNIEnv* env, jobject o)) |
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|
764 const char* cpu_features = VM_Version::cpu_features(); |
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|
765 ThreadToNativeFromVM ttn(thread); |
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|
766 jstring features_string = env->NewStringUTF(cpu_features); |
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8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
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|
767 |
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|
768 CHECK_JNI_EXCEPTION_(env, NULL); |
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8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
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|
769 |
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8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
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diff
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|
770 return features_string; |
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8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
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diff
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|
771 WB_END |
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|
772 |
17817 | 773 |
774 WB_ENTRY(jobjectArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) | |
775 ResourceMark rm(THREAD); | |
776 jmethodID jmid = reflected_method_to_jmid(thread, env, method); | |
777 CHECK_JNI_EXCEPTION_(env, NULL); | |
778 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); | |
779 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); | |
780 jobjectArray result = NULL; | |
781 if (code == NULL) { | |
782 return result; | |
783 } | |
784 int insts_size = code->insts_size(); | |
785 | |
786 ThreadToNativeFromVM ttn(thread); | |
787 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string()); | |
788 CHECK_JNI_EXCEPTION_(env, NULL); | |
789 result = env->NewObjectArray(2, clazz, NULL); | |
790 if (result == NULL) { | |
791 return result; | |
792 } | |
793 | |
20249 | 794 jobject obj = integerBox(thread, env, code->comp_level()); |
17817 | 795 CHECK_JNI_EXCEPTION_(env, NULL); |
796 env->SetObjectArrayElement(result, 0, obj); | |
797 | |
798 jbyteArray insts = env->NewByteArray(insts_size); | |
799 CHECK_JNI_EXCEPTION_(env, NULL); | |
800 env->SetByteArrayRegion(insts, 0, insts_size, (jbyte*) code->insts_begin()); | |
801 env->SetObjectArrayElement(result, 1, insts); | |
802 | |
803 return result; | |
804 WB_END | |
805 | |
806 | |
20278
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8049421: G1 Class Unloading after completing a concurrent mark cycle
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20249
diff
changeset
|
807 int WhiteBox::array_bytes_to_length(size_t bytes) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
808 return Array<u1>::bytes_to_length(bytes); |
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8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
809 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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20249
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|
810 |
2c6ef90f030a
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diff
changeset
|
811 WB_ENTRY(jlong, WB_AllocateMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong size)) |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
812 if (size < 0) { |
2c6ef90f030a
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|
813 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
814 err_msg("WB_AllocateMetaspace: size is negative: " JLONG_FORMAT, size)); |
2c6ef90f030a
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changeset
|
815 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
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changeset
|
816 |
2c6ef90f030a
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|
817 oop class_loader_oop = JNIHandles::resolve(class_loader); |
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818 ClassLoaderData* cld = class_loader_oop != NULL |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
819 ? java_lang_ClassLoader::loader_data(class_loader_oop) |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
820 : ClassLoaderData::the_null_class_loader_data(); |
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diff
changeset
|
821 |
2c6ef90f030a
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|
822 void* metadata = MetadataFactory::new_writeable_array<u1>(cld, WhiteBox::array_bytes_to_length((size_t)size), thread); |
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8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
823 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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changeset
|
824 return (jlong)(uintptr_t)metadata; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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parents:
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diff
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|
825 WB_END |
2c6ef90f030a
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|
826 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
827 WB_ENTRY(void, WB_FreeMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong addr, jlong size)) |
2c6ef90f030a
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|
828 oop class_loader_oop = JNIHandles::resolve(class_loader); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
829 ClassLoaderData* cld = class_loader_oop != NULL |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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diff
changeset
|
830 ? java_lang_ClassLoader::loader_data(class_loader_oop) |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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|
831 : ClassLoaderData::the_null_class_loader_data(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
832 |
2c6ef90f030a
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20249
diff
changeset
|
833 MetadataFactory::free_array(cld, (Array<u1>*)(uintptr_t)addr); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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|
834 WB_END |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
835 |
20540
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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20465
diff
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|
836 WB_ENTRY(jlong, WB_IncMetaspaceCapacityUntilGC(JNIEnv* env, jobject wb, jlong inc)) |
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8049599: MetaspaceGC::_capacity_until_GC can overflow
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diff
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|
837 if (inc < 0) { |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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parents:
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|
838 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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diff
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|
839 err_msg("WB_IncMetaspaceCapacityUntilGC: inc is negative: " JLONG_FORMAT, inc)); |
b509b7ff561c
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ehelin
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|
840 } |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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20465
diff
changeset
|
841 |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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changeset
|
842 jlong max_size_t = (jlong) ((size_t) -1); |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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|
843 if (inc > max_size_t) { |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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20465
diff
changeset
|
844 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
ehelin
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|
845 err_msg("WB_IncMetaspaceCapacityUntilGC: inc does not fit in size_t: " JLONG_FORMAT, inc)); |
b509b7ff561c
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ehelin
parents:
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|
846 } |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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changeset
|
847 |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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|
848 size_t new_cap_until_GC = 0; |
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|
849 size_t aligned_inc = align_size_down((size_t) inc, Metaspace::commit_alignment()); |
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8049599: MetaspaceGC::_capacity_until_GC can overflow
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diff
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|
850 bool success = MetaspaceGC::inc_capacity_until_GC(aligned_inc, &new_cap_until_GC); |
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|
851 if (!success) { |
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diff
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|
852 THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(), |
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|
853 "WB_IncMetaspaceCapacityUntilGC: could not increase capacity until GC " |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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parents:
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diff
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|
854 "due to contention with another thread"); |
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8049599: MetaspaceGC::_capacity_until_GC can overflow
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|
855 } |
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|
856 return (jlong) new_cap_until_GC; |
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diff
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|
857 WB_END |
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|
858 |
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|
859 WB_ENTRY(jlong, WB_MetaspaceCapacityUntilGC(JNIEnv* env, jobject wb)) |
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|
860 return (jlong) MetaspaceGC::capacity_until_GC(); |
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|
861 WB_END |
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|
862 |
5978
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|
863 //Some convenience methods to deal with objects from java |
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864 int WhiteBox::offset_for_field(const char* field_name, oop object, |
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diff
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|
865 Symbol* signature_symbol) { |
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|
866 assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid"); |
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|
867 Thread* THREAD = Thread::current(); |
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|
868 |
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|
869 //Get the class of our object |
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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6202
diff
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|
870 Klass* arg_klass = object->klass(); |
5978
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|
871 //Turn it into an instance-klass |
6725
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872 InstanceKlass* ik = InstanceKlass::cast(arg_klass); |
5978
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|
873 |
51612f0c0a79
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|
874 //Create symbols to look for in the class |
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|
875 TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name), |
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876 THREAD); |
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|
877 |
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878 //To be filled in with an offset of the field we're looking for |
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|
879 fieldDescriptor fd; |
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|
880 |
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|
881 Klass* res = ik->find_field(name_symbol, signature_symbol, &fd); |
5978
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882 if (res == NULL) { |
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883 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), |
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|
884 name_symbol->as_C_string()); |
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|
885 fatal("Invalid layout of preloaded class"); |
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|
886 } |
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|
887 |
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|
888 //fetch the field at the offset we've found |
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|
889 int dest_offset = fd.offset(); |
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|
890 |
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|
891 return dest_offset; |
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|
892 } |
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|
893 |
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|
894 |
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|
895 const char* WhiteBox::lookup_jstring(const char* field_name, oop object) { |
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|
896 int offset = offset_for_field(field_name, object, |
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|
897 vmSymbols::string_signature()); |
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|
898 oop string = object->obj_field(offset); |
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|
899 if (string == NULL) { |
5a1f452f8f90
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|
900 return NULL; |
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|
901 } |
5978
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|
902 const char* ret = java_lang_String::as_utf8_string(string); |
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|
903 return ret; |
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|
904 } |
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|
905 |
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|
906 bool WhiteBox::lookup_bool(const char* field_name, oop object) { |
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|
907 int offset = |
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|
908 offset_for_field(field_name, object, vmSymbols::bool_signature()); |
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|
909 bool ret = (object->bool_field(offset) == JNI_TRUE); |
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|
910 return ret; |
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|
911 } |
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|
912 |
20451 | 913 void WhiteBox::register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread, JNINativeMethod* method_array, int method_count) { |
914 ResourceMark rm; | |
915 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
916 | |
917 // one by one registration natives for exception catching | |
918 jclass no_such_method_error_klass = env->FindClass(vmSymbols::java_lang_NoSuchMethodError()->as_C_string()); | |
919 CHECK_JNI_EXCEPTION(env); | |
920 for (int i = 0, n = method_count; i < n; ++i) { | |
921 // Skip dummy entries | |
922 if (method_array[i].fnPtr == NULL) continue; | |
923 if (env->RegisterNatives(wbclass, &method_array[i], 1) != 0) { | |
924 jthrowable throwable_obj = env->ExceptionOccurred(); | |
925 if (throwable_obj != NULL) { | |
926 env->ExceptionClear(); | |
927 if (env->IsInstanceOf(throwable_obj, no_such_method_error_klass)) { | |
928 // NoSuchMethodError is thrown when a method can't be found or a method is not native. | |
929 // Ignoring the exception since it is not preventing use of other WhiteBox methods. | |
930 tty->print_cr("Warning: 'NoSuchMethodError' on register of sun.hotspot.WhiteBox::%s%s", | |
931 method_array[i].name, method_array[i].signature); | |
932 } | |
933 } else { | |
934 // Registration failed unexpectedly. | |
935 tty->print_cr("Warning: unexpected error on register of sun.hotspot.WhiteBox::%s%s. All methods will be unregistered", | |
936 method_array[i].name, method_array[i].signature); | |
937 env->UnregisterNatives(wbclass); | |
938 break; | |
939 } | |
940 } | |
941 } | |
942 } | |
5978
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|
943 |
5915 | 944 #define CC (char*) |
945 | |
946 static JNINativeMethod methods[] = { | |
947 {CC"getObjectAddress", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectAddress }, | |
20357
4bfc44ba0d19
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|
948 {CC"getObjectSize", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectSize }, |
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|
949 {CC"isObjectInOldGen", CC"(Ljava/lang/Object;)Z", (void*)&WB_isObjectInOldGen }, |
5915 | 950 {CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize }, |
8051
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|
951 {CC"isClassAlive0", CC"(Ljava/lang/String;)Z", (void*)&WB_IsClassAlive }, |
20608
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
parents:
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diff
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|
952 {CC"classKnownToNotExist", |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
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20553
diff
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|
953 CC"(Ljava/lang/ClassLoader;Ljava/lang/String;)Z",(void*)&WB_ClassKnownToNotExist}, |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
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20553
diff
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|
954 {CC"getLookupCacheURLs", CC"(Ljava/lang/ClassLoader;)[Ljava/net/URL;", (void*)&WB_GetLookupCacheURLs}, |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
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diff
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|
955 {CC"getLookupCacheMatches", CC"(Ljava/lang/ClassLoader;Ljava/lang/String;)[I", |
4cb90023bf2b
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|
956 (void*)&WB_GetLookupCacheMatches}, |
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|
957 {CC"parseCommandLine", |
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958 CC"(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;", |
5978
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|
959 (void*) &WB_ParseCommandLine |
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|
960 }, |
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
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diff
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|
961 {CC"getCompressedOopsMaxHeapSize", CC"()J", |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
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|
962 (void*)&WB_GetCompressedOopsMaxHeapSize}, |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
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10208
diff
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|
963 {CC"printHeapSizes", CC"()V", (void*)&WB_PrintHeapSizes }, |
13053
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
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|
964 {CC"runMemoryUnitTests", CC"()V", (void*)&WB_RunMemoryUnitTests}, |
9d8b29a0548c
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965 {CC"readFromNoaccessArea",CC"()V", (void*)&WB_ReadFromNoaccessArea}, |
9d8b29a0548c
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966 {CC"stressVirtualSpaceResize",CC"(JJJ)I", (void*)&WB_StressVirtualSpaceResize}, |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
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|
967 #if INCLUDE_ALL_GCS |
5915 | 968 {CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark}, |
969 {CC"g1IsHumongous", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous }, | |
970 {CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions }, | |
971 {CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize }, | |
8001
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|
972 #endif // INCLUDE_ALL_GCS |
12118
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
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|
973 #if INCLUDE_NMT |
9056
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|
974 {CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc }, |
20360 | 975 {CC"NMTMallocWithPseudoStack", CC"(JI)J", (void*)&WB_NMTMallocWithPseudoStack}, |
9056
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|
976 {CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree }, |
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|
977 {CC"NMTReserveMemory", CC"(J)J", (void*)&WB_NMTReserveMemory }, |
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|
978 {CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory }, |
3b890cd4da64
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|
979 {CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory }, |
3b890cd4da64
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diff
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|
980 {CC"NMTReleaseMemory", CC"(JJ)V", (void*)&WB_NMTReleaseMemory }, |
12118
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
12073
diff
changeset
|
981 {CC"NMTIsDetailSupported",CC"()Z", (void*)&WB_NMTIsDetailSupported}, |
20553
417e3b8d04c5
8059100: SIGSEGV VirtualMemoryTracker::remove_released_region
coleenp
parents:
20540
diff
changeset
|
982 {CC"NMTChangeTrackingLevel", CC"()Z", (void*)&WB_NMTChangeTrackingLevel}, |
20628
80260967f994
8061969: [TESTBUG] MallocSiteHashOverflow.java should be enabled for 32-bit platforms
gtriantafill
parents:
20611
diff
changeset
|
983 {CC"NMTGetHashSize", CC"()I", (void*)&WB_NMTGetHashSize }, |
7971
4102b59539ce
8005012: Add WB APIs to better support NMT testing
ctornqvi
parents:
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diff
changeset
|
984 #endif // INCLUDE_NMT |
8051
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|
985 {CC"deoptimizeAll", CC"()V", (void*)&WB_DeoptimizeAll }, |
12073 | 986 {CC"deoptimizeMethod", CC"(Ljava/lang/reflect/Executable;Z)I", |
8051
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|
987 (void*)&WB_DeoptimizeMethod }, |
12073 | 988 {CC"isMethodCompiled", CC"(Ljava/lang/reflect/Executable;Z)Z", |
8051
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|
989 (void*)&WB_IsMethodCompiled }, |
12073 | 990 {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Executable;IZ)Z", |
8051
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|
991 (void*)&WB_IsMethodCompilable}, |
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|
992 {CC"isMethodQueuedForCompilation", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
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|
993 CC"(Ljava/lang/reflect/Executable;)Z", (void*)&WB_IsMethodQueuedForCompilation}, |
8051
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|
994 {CC"makeMethodNotCompilable", |
12073 | 995 CC"(Ljava/lang/reflect/Executable;IZ)V", (void*)&WB_MakeMethodNotCompilable}, |
9080
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|
996 {CC"testSetDontInlineMethod", |
10113
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|
997 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetDontInlineMethod}, |
8051
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|
998 {CC"getMethodCompilationLevel", |
12073 | 999 CC"(Ljava/lang/reflect/Executable;Z)I", (void*)&WB_GetMethodCompilationLevel}, |
1000 {CC"getMethodEntryBci", | |
1001 CC"(Ljava/lang/reflect/Executable;)I", (void*)&WB_GetMethodEntryBci}, | |
1002 {CC"getCompileQueueSize", | |
1003 CC"(I)I", (void*)&WB_GetCompileQueueSize}, | |
9080
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|
1004 {CC"testSetForceInlineMethod", |
10113
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8011971: WB API doesn't accept j.l.reflect.Constructor
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diff
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|
1005 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetForceInlineMethod}, |
9080
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8007288: Additional WB API for compiler's testing
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diff
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|
1006 {CC"enqueueMethodForCompilation", |
12073 | 1007 CC"(Ljava/lang/reflect/Executable;II)Z", (void*)&WB_EnqueueMethodForCompilation}, |
9080
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|
1008 {CC"clearMethodState", |
10113
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diff
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|
1009 CC"(Ljava/lang/reflect/Executable;)V", (void*)&WB_ClearMethodState}, |
20249 | 1010 {CC"setBooleanVMFlag", CC"(Ljava/lang/String;Z)V",(void*)&WB_SetBooleanVMFlag}, |
1011 {CC"setIntxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetIntxVMFlag}, | |
1012 {CC"setUintxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUintxVMFlag}, | |
1013 {CC"setUint64VMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUint64VMFlag}, | |
1014 {CC"setDoubleVMFlag", CC"(Ljava/lang/String;D)V",(void*)&WB_SetDoubleVMFlag}, | |
1015 {CC"setStringVMFlag", CC"(Ljava/lang/String;Ljava/lang/String;)V", | |
1016 (void*)&WB_SetStringVMFlag}, | |
1017 {CC"getBooleanVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Boolean;", | |
1018 (void*)&WB_GetBooleanVMFlag}, | |
1019 {CC"getIntxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1020 (void*)&WB_GetIntxVMFlag}, | |
1021 {CC"getUintxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1022 (void*)&WB_GetUintxVMFlag}, | |
1023 {CC"getUint64VMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1024 (void*)&WB_GetUint64VMFlag}, | |
1025 {CC"getDoubleVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Double;", | |
1026 (void*)&WB_GetDoubleVMFlag}, | |
1027 {CC"getStringVMFlag", CC"(Ljava/lang/String;)Ljava/lang/String;", | |
1028 (void*)&WB_GetStringVMFlag}, | |
1029 {CC"isInStringTable", CC"(Ljava/lang/String;)Z", (void*)&WB_IsInStringTable }, | |
8850 | 1030 {CC"fullGC", CC"()V", (void*)&WB_FullGC }, |
20357
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20336
diff
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|
1031 {CC"youngGC", CC"()V", (void*)&WB_YoungGC }, |
10341
f54c85acc043
8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
mikael
parents:
10241
diff
changeset
|
1032 {CC"readReservedMemory", CC"()V", (void*)&WB_ReadReservedMemory }, |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
1033 {CC"allocateMetaspace", |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20249
diff
changeset
|
1034 CC"(Ljava/lang/ClassLoader;J)J", (void*)&WB_AllocateMetaspace }, |
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8049421: G1 Class Unloading after completing a concurrent mark cycle
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parents:
20249
diff
changeset
|
1035 {CC"freeMetaspace", |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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parents:
20249
diff
changeset
|
1036 CC"(Ljava/lang/ClassLoader;JJ)V", (void*)&WB_FreeMetaspace }, |
20540
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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parents:
20465
diff
changeset
|
1037 {CC"incMetaspaceCapacityUntilGC", CC"(J)J", (void*)&WB_IncMetaspaceCapacityUntilGC }, |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
ehelin
parents:
20465
diff
changeset
|
1038 {CC"metaspaceCapacityUntilGC", CC"()J", (void*)&WB_MetaspaceCapacityUntilGC }, |
17778
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
iignatyev
parents:
17704
diff
changeset
|
1039 {CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures }, |
17817 | 1040 {CC"getNMethod", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;", |
1041 (void*)&WB_GetNMethod }, | |
5915 | 1042 }; |
1043 | |
1044 #undef CC | |
1045 | |
1046 JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass)) | |
1047 { | |
1048 if (WhiteBoxAPI) { | |
1049 // Make sure that wbclass is loaded by the null classloader | |
1050 instanceKlassHandle ikh = instanceKlassHandle(JNIHandles::resolve(wbclass)->klass()); | |
1051 Handle loader(ikh->class_loader()); | |
1052 if (loader.is_null()) { | |
20451 | 1053 WhiteBox::register_methods(env, wbclass, thread, methods, sizeof(methods) / sizeof(methods[0])); |
1054 WhiteBox::register_extended(env, wbclass, thread); | |
1055 WhiteBox::set_used(); | |
5915 | 1056 } |
1057 } | |
1058 } | |
1059 JVM_END |