Mercurial > hg > graal-jvmci-8
annotate src/share/vm/prims/whitebox.cpp @ 24145:2f2299c68571 jvmci-0.27
change default of UseJVMCICompiler based on jvmci.Compiler property (which can now be set from <java.home>/jre/lib/jvmci/compiler-name)
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 15 Jun 2017 21:38:21 +0200 |
parents | f13e777eb255 |
children |
rev | line source |
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5915 | 1 /* |
23893 | 2 * Copyright (c) 2012, 2016, 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" |
23893 | 28 #include "memory/metaspaceShared.hpp" |
5915 | 29 #include "memory/universe.hpp" |
30 #include "oops/oop.inline.hpp" | |
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31 |
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32 #include "classfile/symbolTable.hpp" |
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33 #include "classfile/classLoaderData.hpp" |
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34 |
5915 | 35 #include "prims/whitebox.hpp" |
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36 #include "prims/wbtestmethods/parserTests.hpp" |
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37 |
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38 #include "runtime/arguments.hpp" |
5915 | 39 #include "runtime/interfaceSupport.hpp" |
40 #include "runtime/os.hpp" | |
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41 #include "utilities/array.hpp" |
5915 | 42 #include "utilities/debug.hpp" |
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43 #include "utilities/macros.hpp" |
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44 #include "utilities/exceptions.hpp" |
5915 | 45 |
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46 #if INCLUDE_ALL_GCS |
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47 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp" |
5915 | 48 #include "gc_implementation/g1/concurrentMark.hpp" |
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49 #include "gc_implementation/g1/concurrentMarkThread.hpp" |
5915 | 50 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
51 #include "gc_implementation/g1/heapRegionRemSet.hpp" | |
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52 #endif // INCLUDE_ALL_GCS |
5915 | 53 |
20360 | 54 #if INCLUDE_NMT |
55 #include "services/mallocSiteTable.hpp" | |
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56 #include "services/memTracker.hpp" |
20360 | 57 #include "utilities/nativeCallStack.hpp" |
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58 #endif // INCLUDE_NMT |
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59 |
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60 #include "compiler/compileBroker.hpp" |
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61 #include "jvmtifiles/jvmtiEnv.hpp" |
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62 #include "runtime/compilationPolicy.hpp" |
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63 |
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64 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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65 |
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66 #define SIZE_T_MAX_VALUE ((size_t) -1) |
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67 |
5915 | 68 bool WhiteBox::_used = false; |
69 | |
70 WB_ENTRY(jlong, WB_GetObjectAddress(JNIEnv* env, jobject o, jobject obj)) | |
71 return (jlong)(void*)JNIHandles::resolve(obj); | |
72 WB_END | |
73 | |
74 WB_ENTRY(jint, WB_GetHeapOopSize(JNIEnv* env, jobject o)) | |
75 return heapOopSize; | |
76 WB_END | |
77 | |
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78 WB_ENTRY(jint, WB_GetVMPageSize(JNIEnv* env, jobject o)) |
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79 return os::vm_page_size(); |
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80 WB_END |
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81 |
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82 WB_ENTRY(jlong, WB_GetVMLargePageSize(JNIEnv* env, jobject o)) |
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83 return os::large_page_size(); |
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84 WB_END |
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85 |
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86 class WBIsKlassAliveClosure : public KlassClosure { |
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87 Symbol* _name; |
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88 bool _found; |
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89 public: |
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90 WBIsKlassAliveClosure(Symbol* name) : _name(name), _found(false) {} |
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91 |
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92 void do_klass(Klass* k) { |
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93 if (_found) return; |
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94 Symbol* ksym = k->name(); |
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95 if (ksym->fast_compare(_name) == 0) { |
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96 _found = true; |
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97 } |
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98 } |
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99 |
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100 bool found() const { |
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101 return _found; |
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102 } |
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103 }; |
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104 |
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105 WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name)) |
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106 Handle h_name = JNIHandles::resolve(name); |
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107 if (h_name.is_null()) return false; |
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108 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false); |
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109 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return |
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110 |
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111 WBIsKlassAliveClosure closure(sym); |
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112 ClassLoaderDataGraph::classes_do(&closure); |
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113 |
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114 return closure.found(); |
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115 WB_END |
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116 |
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117 WB_ENTRY(jboolean, WB_ClassKnownToNotExist(JNIEnv* env, jobject o, jobject loader, jstring name)) |
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118 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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119 const char* class_name = env->GetStringUTFChars(name, NULL); |
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120 jboolean result = JVM_KnownToNotExist(env, loader, class_name); |
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121 env->ReleaseStringUTFChars(name, class_name); |
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122 return result; |
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123 WB_END |
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124 |
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125 WB_ENTRY(jobjectArray, WB_GetLookupCacheURLs(JNIEnv* env, jobject o, jobject loader)) |
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126 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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127 return JVM_GetResourceLookupCacheURLs(env, loader); |
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128 WB_END |
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129 |
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130 WB_ENTRY(jintArray, WB_GetLookupCacheMatches(JNIEnv* env, jobject o, jobject loader, jstring name)) |
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131 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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132 const char* resource_name = env->GetStringUTFChars(name, NULL); |
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133 jintArray result = JVM_GetResourceLookupCache(env, loader, resource_name); |
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134 |
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135 env->ReleaseStringUTFChars(name, resource_name); |
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136 return result; |
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137 WB_END |
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138 |
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139 WB_ENTRY(void, WB_AddToBootstrapClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) { |
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140 #if INCLUDE_JVMTI |
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141 ResourceMark rm; |
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142 const char* seg = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(segment)); |
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143 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION); |
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144 jvmtiError err = jvmti_env->AddToBootstrapClassLoaderSearch(seg); |
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145 assert(err == JVMTI_ERROR_NONE, "must not fail"); |
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146 #endif |
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147 } |
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148 WB_END |
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149 |
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150 WB_ENTRY(void, WB_AddToSystemClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) { |
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151 #if INCLUDE_JVMTI |
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152 ResourceMark rm; |
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153 const char* seg = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(segment)); |
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154 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION); |
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155 jvmtiError err = jvmti_env->AddToSystemClassLoaderSearch(seg); |
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156 assert(err == JVMTI_ERROR_NONE, "must not fail"); |
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157 #endif |
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158 } |
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159 WB_END |
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160 |
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161 |
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162 WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) { |
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163 return (jlong)Arguments::max_heap_for_compressed_oops(); |
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164 } |
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165 WB_END |
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166 |
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167 WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) { |
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168 CollectorPolicy * p = Universe::heap()->collector_policy(); |
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169 gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap " |
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170 SIZE_FORMAT" Maximum heap "SIZE_FORMAT" Min alignment "SIZE_FORMAT" Max alignment "SIZE_FORMAT, |
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171 p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(), |
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172 p->space_alignment(), p->heap_alignment()); |
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173 } |
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174 WB_END |
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175 |
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176 #ifndef PRODUCT |
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177 // Forward declaration |
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178 void TestReservedSpace_test(); |
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179 void TestReserveMemorySpecial_test(); |
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180 void TestVirtualSpace_test(); |
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181 void TestMetaspaceAux_test(); |
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182 #endif |
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183 |
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184 WB_ENTRY(void, WB_RunMemoryUnitTests(JNIEnv* env, jobject o)) |
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185 #ifndef PRODUCT |
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186 TestReservedSpace_test(); |
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187 TestReserveMemorySpecial_test(); |
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188 TestVirtualSpace_test(); |
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189 TestMetaspaceAux_test(); |
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190 #endif |
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191 WB_END |
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192 |
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193 WB_ENTRY(void, WB_ReadFromNoaccessArea(JNIEnv* env, jobject o)) |
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194 size_t granularity = os::vm_allocation_granularity(); |
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195 ReservedHeapSpace rhs(100 * granularity, granularity, false, NULL); |
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196 VirtualSpace vs; |
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197 vs.initialize(rhs, 50 * granularity); |
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198 |
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199 //Check if constraints are complied |
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200 if (!( UseCompressedOops && rhs.base() != NULL && |
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201 Universe::narrow_oop_base() != NULL && |
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202 Universe::narrow_oop_use_implicit_null_checks() )) { |
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203 tty->print_cr("WB_ReadFromNoaccessArea method is useless:\n " |
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204 "\tUseCompressedOops is %d\n" |
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205 "\trhs.base() is "PTR_FORMAT"\n" |
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206 "\tUniverse::narrow_oop_base() is "PTR_FORMAT"\n" |
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207 "\tUniverse::narrow_oop_use_implicit_null_checks() is %d", |
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208 UseCompressedOops, |
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209 rhs.base(), |
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210 Universe::narrow_oop_base(), |
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211 Universe::narrow_oop_use_implicit_null_checks()); |
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212 return; |
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213 } |
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214 tty->print_cr("Reading from no access area... "); |
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215 tty->print_cr("*(vs.low_boundary() - rhs.noaccess_prefix() / 2 ) = %c", |
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216 *(vs.low_boundary() - rhs.noaccess_prefix() / 2 )); |
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217 WB_END |
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218 |
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219 static jint wb_stress_virtual_space_resize(size_t reserved_space_size, |
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220 size_t magnitude, size_t iterations) { |
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221 size_t granularity = os::vm_allocation_granularity(); |
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222 ReservedHeapSpace rhs(reserved_space_size * granularity, granularity, false, NULL); |
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223 VirtualSpace vs; |
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224 if (!vs.initialize(rhs, 0)) { |
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225 tty->print_cr("Failed to initialize VirtualSpace. Can't proceed."); |
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226 return 3; |
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227 } |
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228 |
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229 long seed = os::random(); |
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230 tty->print_cr("Random seed is %ld", seed); |
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231 os::init_random(seed); |
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232 |
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233 for (size_t i = 0; i < iterations; i++) { |
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234 |
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235 // Whether we will shrink or grow |
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236 bool shrink = os::random() % 2L == 0; |
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237 |
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238 // Get random delta to resize virtual space |
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239 size_t delta = (size_t)os::random() % magnitude; |
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240 |
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241 // If we are about to shrink virtual space below zero, then expand instead |
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242 if (shrink && vs.committed_size() < delta) { |
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243 shrink = false; |
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244 } |
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245 |
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246 // Resizing by delta |
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247 if (shrink) { |
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248 vs.shrink_by(delta); |
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249 } else { |
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250 // If expanding fails expand_by will silently return false |
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251 vs.expand_by(delta, true); |
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252 } |
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253 } |
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254 return 0; |
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255 } |
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256 |
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257 WB_ENTRY(jint, WB_StressVirtualSpaceResize(JNIEnv* env, jobject o, |
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258 jlong reserved_space_size, jlong magnitude, jlong iterations)) |
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259 tty->print_cr("reservedSpaceSize="JLONG_FORMAT", magnitude="JLONG_FORMAT", " |
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260 "iterations="JLONG_FORMAT"\n", reserved_space_size, magnitude, |
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261 iterations); |
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262 if (reserved_space_size < 0 || magnitude < 0 || iterations < 0) { |
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263 tty->print_cr("One of variables printed above is negative. Can't proceed.\n"); |
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264 return 1; |
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265 } |
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266 |
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267 // sizeof(size_t) depends on whether OS is 32bit or 64bit. sizeof(jlong) is |
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268 // always 8 byte. That's why we should avoid overflow in case of 32bit platform. |
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269 if (sizeof(size_t) < sizeof(jlong)) { |
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270 jlong size_t_max_value = (jlong) SIZE_T_MAX_VALUE; |
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271 if (reserved_space_size > size_t_max_value || magnitude > size_t_max_value |
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272 || iterations > size_t_max_value) { |
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273 tty->print_cr("One of variables printed above overflows size_t. Can't proceed.\n"); |
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274 return 2; |
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275 } |
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276 } |
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277 |
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278 return wb_stress_virtual_space_resize((size_t) reserved_space_size, |
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279 (size_t) magnitude, (size_t) iterations); |
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280 WB_END |
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281 |
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282 WB_ENTRY(jboolean, WB_isObjectInOldGen(JNIEnv* env, jobject o, jobject obj)) |
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283 oop p = JNIHandles::resolve(obj); |
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284 #if INCLUDE_ALL_GCS |
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285 if (UseG1GC) { |
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286 G1CollectedHeap* g1 = G1CollectedHeap::heap(); |
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287 const HeapRegion* hr = g1->heap_region_containing(p); |
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288 if (hr == NULL) { |
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289 return false; |
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290 } |
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291 return !(hr->is_young()); |
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292 } else if (UseParallelGC) { |
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293 ParallelScavengeHeap* psh = ParallelScavengeHeap::heap(); |
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294 return !psh->is_in_young(p); |
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295 } |
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296 #endif // INCLUDE_ALL_GCS |
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297 GenCollectedHeap* gch = GenCollectedHeap::heap(); |
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298 return !gch->is_in_young(p); |
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299 WB_END |
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300 |
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301 WB_ENTRY(jlong, WB_GetObjectSize(JNIEnv* env, jobject o, jobject obj)) |
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302 oop p = JNIHandles::resolve(obj); |
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303 return p->size() * HeapWordSize; |
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304 WB_END |
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305 |
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306 #if INCLUDE_ALL_GCS |
5915 | 307 WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj)) |
308 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
309 oop result = JNIHandles::resolve(obj); | |
310 const HeapRegion* hr = g1->heap_region_containing(result); | |
311 return hr->isHumongous(); | |
312 WB_END | |
313 | |
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314 WB_ENTRY(jlong, WB_G1NumMaxRegions(JNIEnv* env, jobject o)) |
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315 G1CollectedHeap* g1 = G1CollectedHeap::heap(); |
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316 size_t nr = g1->max_regions(); |
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317 return (jlong)nr; |
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318 WB_END |
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319 |
5915 | 320 WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o)) |
321 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
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322 size_t nr = g1->num_free_regions(); |
5915 | 323 return (jlong)nr; |
324 WB_END | |
325 | |
326 WB_ENTRY(jboolean, WB_G1InConcurrentMark(JNIEnv* env, jobject o)) | |
327 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
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328 return g1->concurrent_mark()->cmThread()->during_cycle(); |
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329 WB_END |
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330 |
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331 WB_ENTRY(jboolean, WB_G1StartMarkCycle(JNIEnv* env, jobject o)) |
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332 G1CollectedHeap* g1h = G1CollectedHeap::heap(); |
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333 if (!g1h->concurrent_mark()->cmThread()->during_cycle()) { |
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334 g1h->collect(GCCause::_wb_conc_mark); |
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335 return true; |
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336 } |
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337 return false; |
5915 | 338 WB_END |
339 | |
340 WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o)) | |
341 return (jint)HeapRegion::GrainBytes; | |
342 WB_END | |
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343 |
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344 WB_ENTRY(jobject, WB_G1AuxiliaryMemoryUsage(JNIEnv* env)) |
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345 ResourceMark rm(THREAD); |
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346 G1CollectedHeap* g1h = G1CollectedHeap::heap(); |
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347 MemoryUsage usage = g1h->get_auxiliary_data_memory_usage(); |
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348 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); |
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349 return JNIHandles::make_local(env, h()); |
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350 WB_END |
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351 #endif // INCLUDE_ALL_GCS |
5915 | 352 |
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353 #if INCLUDE_NMT |
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354 // Alloc memory using the test memory type so that we can use that to see if |
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355 // NMT picks it up correctly |
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356 WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size)) |
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357 jlong addr = 0; |
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358 addr = (jlong)(uintptr_t)os::malloc(size, mtTest); |
20360 | 359 return addr; |
360 WB_END | |
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361 |
20360 | 362 // Alloc memory with pseudo call stack. The test can create psudo malloc |
363 // allocation site to stress the malloc tracking. | |
364 WB_ENTRY(jlong, WB_NMTMallocWithPseudoStack(JNIEnv* env, jobject o, jlong size, jint pseudo_stack)) | |
365 address pc = (address)(size_t)pseudo_stack; | |
366 NativeCallStack stack(&pc, 1); | |
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367 return (jlong)(uintptr_t)os::malloc(size, mtTest, stack); |
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368 WB_END |
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369 |
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370 // Free the memory allocated by NMTAllocTest |
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371 WB_ENTRY(void, WB_NMTFree(JNIEnv* env, jobject o, jlong mem)) |
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372 os::free((void*)(uintptr_t)mem, mtTest); |
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373 WB_END |
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374 |
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375 WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size)) |
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376 jlong addr = 0; |
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377 |
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378 addr = (jlong)(uintptr_t)os::reserve_memory(size); |
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379 MemTracker::record_virtual_memory_type((address)addr, mtTest); |
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380 |
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381 return addr; |
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382 WB_END |
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383 |
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384 |
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385 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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386 os::commit_memory((char *)(uintptr_t)addr, size, !ExecMem); |
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387 MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest); |
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388 WB_END |
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389 |
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390 WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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391 os::uncommit_memory((char *)(uintptr_t)addr, size); |
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392 WB_END |
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393 |
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394 WB_ENTRY(void, WB_NMTReleaseMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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395 os::release_memory((char *)(uintptr_t)addr, size); |
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396 WB_END |
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397 |
20360 | 398 WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env)) |
399 return MemTracker::tracking_level() == NMT_detail; | |
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400 WB_END |
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401 |
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402 WB_ENTRY(jboolean, WB_NMTChangeTrackingLevel(JNIEnv* env)) |
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403 // Test that we can downgrade NMT levels but not upgrade them. |
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404 if (MemTracker::tracking_level() == NMT_off) { |
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405 MemTracker::transition_to(NMT_off); |
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406 return MemTracker::tracking_level() == NMT_off; |
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407 } else { |
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408 assert(MemTracker::tracking_level() == NMT_detail, "Should start out as detail tracking"); |
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409 MemTracker::transition_to(NMT_summary); |
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410 assert(MemTracker::tracking_level() == NMT_summary, "Should be summary now"); |
20360 | 411 |
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412 // Can't go to detail once NMT is set to summary. |
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413 MemTracker::transition_to(NMT_detail); |
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414 assert(MemTracker::tracking_level() == NMT_summary, "Should still be summary now"); |
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415 |
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416 // Shutdown sets tracking level to minimal. |
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417 MemTracker::shutdown(); |
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418 assert(MemTracker::tracking_level() == NMT_minimal, "Should be minimal now"); |
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419 |
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420 // Once the tracking level is minimal, we cannot increase to summary. |
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421 // The code ignores this request instead of asserting because if the malloc site |
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422 // table overflows in another thread, it tries to change the code to summary. |
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423 MemTracker::transition_to(NMT_summary); |
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424 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); |
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425 |
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426 // Really can never go up to detail, verify that the code would never do this. |
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427 MemTracker::transition_to(NMT_detail); |
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428 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); |
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429 return MemTracker::tracking_level() == NMT_minimal; |
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430 } |
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431 WB_END |
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432 |
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433 WB_ENTRY(jint, WB_NMTGetHashSize(JNIEnv* env, jobject o)) |
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434 int hash_size = MallocSiteTable::hash_buckets(); |
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435 assert(hash_size > 0, "NMT hash_size should be > 0"); |
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436 return (jint)hash_size; |
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437 WB_END |
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438 #endif // INCLUDE_NMT |
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439 |
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440 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) { |
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441 assert(method != NULL, "method should not be null"); |
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442 ThreadToNativeFromVM ttn(thread); |
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443 return env->FromReflectedMethod(method); |
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444 } |
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445 |
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446 WB_ENTRY(void, WB_DeoptimizeAll(JNIEnv* env, jobject o)) |
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447 MutexLockerEx mu(Compile_lock); |
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448 CodeCache::mark_all_nmethods_for_deoptimization(); |
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449 VM_Deoptimize op; |
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450 VMThread::execute(&op); |
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451 WB_END |
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452 |
12073 | 453 WB_ENTRY(jint, WB_DeoptimizeMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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454 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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455 int result = 0; |
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456 CHECK_JNI_EXCEPTION_(env, result); |
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457 MutexLockerEx mu(Compile_lock); |
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458 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 459 if (is_osr) { |
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460 result += mh->mark_osr_nmethods(); |
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461 } else if (mh->code() != NULL) { |
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462 mh->code()->mark_for_deoptimization(); |
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463 ++result; |
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464 } |
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465 result += CodeCache::mark_for_deoptimization(mh()); |
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466 if (result > 0) { |
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467 VM_Deoptimize op; |
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468 VMThread::execute(&op); |
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469 } |
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470 return result; |
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471 WB_END |
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472 |
12073 | 473 WB_ENTRY(jboolean, WB_IsMethodCompiled(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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474 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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475 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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476 MutexLockerEx mu(Compile_lock); |
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477 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 478 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); |
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479 if (code == NULL) { |
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480 return JNI_FALSE; |
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481 } |
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482 return (code->is_alive() && !code->is_marked_for_deoptimization()); |
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483 WB_END |
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484 |
12073 | 485 WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) |
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486 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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487 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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488 MutexLockerEx mu(Compile_lock); |
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489 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 490 if (is_osr) { |
491 return CompilationPolicy::can_be_osr_compiled(mh, comp_level); | |
492 } else { | |
493 return CompilationPolicy::can_be_compiled(mh, comp_level); | |
494 } | |
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495 WB_END |
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496 |
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497 WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method)) |
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498 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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499 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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500 MutexLockerEx mu(Compile_lock); |
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501 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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502 return mh->queued_for_compilation(); |
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503 WB_END |
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504 |
12073 | 505 WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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506 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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507 CHECK_JNI_EXCEPTION_(env, CompLevel_none); |
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508 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 509 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); |
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510 return (code != NULL ? code->comp_level() : CompLevel_none); |
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511 WB_END |
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512 |
12073 | 513 WB_ENTRY(void, WB_MakeMethodNotCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) |
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514 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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515 CHECK_JNI_EXCEPTION(env); |
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516 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 517 if (is_osr) { |
518 mh->set_not_osr_compilable(comp_level, true /* report */, "WhiteBox"); | |
519 } else { | |
520 mh->set_not_compilable(comp_level, true /* report */, "WhiteBox"); | |
521 } | |
522 WB_END | |
523 | |
524 WB_ENTRY(jint, WB_GetMethodEntryBci(JNIEnv* env, jobject o, jobject method)) | |
525 jmethodID jmid = reflected_method_to_jmid(thread, env, method); | |
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526 CHECK_JNI_EXCEPTION_(env, InvocationEntryBci); |
12073 | 527 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
528 nmethod* code = mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false); | |
529 return (code != NULL && code->is_osr_method() ? code->osr_entry_bci() : InvocationEntryBci); | |
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530 WB_END |
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531 |
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532 WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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533 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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534 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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535 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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536 bool result = mh->dont_inline(); |
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537 mh->set_dont_inline(value == JNI_TRUE); |
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538 return result; |
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539 WB_END |
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540 |
12073 | 541 WB_ENTRY(jint, WB_GetCompileQueueSize(JNIEnv* env, jobject o, jint comp_level)) |
542 if (comp_level == CompLevel_any) { | |
543 return CompileBroker::queue_size(CompLevel_full_optimization) /* C2 */ + | |
544 CompileBroker::queue_size(CompLevel_full_profile) /* C1 */; | |
545 } else { | |
546 return CompileBroker::queue_size(comp_level); | |
547 } | |
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548 WB_END |
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549 |
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550 WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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551 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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552 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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553 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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554 bool result = mh->force_inline(); |
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555 mh->set_force_inline(value == JNI_TRUE); |
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556 return result; |
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557 WB_END |
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558 |
12073 | 559 WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level, jint bci)) |
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560 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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561 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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562 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 563 nmethod* nm = CompileBroker::compile_method(mh, bci, comp_level, mh, mh->invocation_count(), "WhiteBox", THREAD); |
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564 MutexLockerEx mu(Compile_lock); |
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565 return (mh->queued_for_compilation() || nm != NULL); |
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566 WB_END |
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567 |
17867 | 568 class VM_WhiteBoxOperation : public VM_Operation { |
569 public: | |
570 VM_WhiteBoxOperation() { } | |
571 VMOp_Type type() const { return VMOp_WhiteBoxOperation; } | |
572 bool allow_nested_vm_operations() const { return true; } | |
573 }; | |
574 | |
575 class AlwaysFalseClosure : public BoolObjectClosure { | |
576 public: | |
577 bool do_object_b(oop p) { return false; } | |
578 }; | |
579 | |
580 static AlwaysFalseClosure always_false; | |
581 | |
582 class VM_WhiteBoxCleanMethodData : public VM_WhiteBoxOperation { | |
583 public: | |
584 VM_WhiteBoxCleanMethodData(MethodData* mdo) : _mdo(mdo) { } | |
585 void doit() { | |
586 _mdo->clean_method_data(&always_false); | |
587 } | |
588 private: | |
589 MethodData* _mdo; | |
590 }; | |
591 | |
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592 WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method)) |
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593 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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594 CHECK_JNI_EXCEPTION(env); |
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595 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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596 MutexLockerEx mu(Compile_lock); |
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597 MethodData* mdo = mh->method_data(); |
10107 | 598 MethodCounters* mcs = mh->method_counters(); |
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599 |
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600 if (mdo != NULL) { |
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601 mdo->init(); |
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602 ResourceMark rm; |
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603 int arg_count = mdo->method()->size_of_parameters(); |
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604 for (int i = 0; i < arg_count; i++) { |
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605 mdo->set_arg_modified(i, 0); |
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606 } |
17867 | 607 VM_WhiteBoxCleanMethodData op(mdo); |
608 VMThread::execute(&op); | |
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609 } |
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610 |
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611 mh->clear_not_c1_compilable(); |
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612 mh->clear_not_c2_compilable(); |
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613 mh->clear_not_c2_osr_compilable(); |
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614 NOT_PRODUCT(mh->set_compiled_invocation_count(0)); |
10107 | 615 if (mcs != NULL) { |
616 mcs->backedge_counter()->init(); | |
617 mcs->invocation_counter()->init(); | |
618 mcs->set_interpreter_invocation_count(0); | |
619 mcs->set_interpreter_throwout_count(0); | |
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620 |
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621 #ifdef TIERED |
10107 | 622 mcs->set_rate(0.0F); |
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623 mh->set_prev_event_count(0); |
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624 mh->set_prev_time(0); |
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625 #endif |
10107 | 626 } |
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627 WB_END |
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628 |
20249 | 629 template <typename T> |
630 static bool GetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAt)(const char*, T*)) { | |
631 if (name == NULL) { | |
632 return false; | |
633 } | |
634 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
635 const char* flag_name = env->GetStringUTFChars(name, NULL); | |
636 bool result = (*TAt)(flag_name, value); | |
637 env->ReleaseStringUTFChars(name, flag_name); | |
638 return result; | |
639 } | |
640 | |
641 template <typename T> | |
642 static bool SetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAtPut)(const char*, T*, Flag::Flags)) { | |
643 if (name == NULL) { | |
644 return false; | |
645 } | |
646 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
647 const char* flag_name = env->GetStringUTFChars(name, NULL); | |
648 bool result = (*TAtPut)(flag_name, value, Flag::INTERNAL); | |
649 env->ReleaseStringUTFChars(name, flag_name); | |
650 return result; | |
651 } | |
652 | |
653 template <typename T> | |
654 static jobject box(JavaThread* thread, JNIEnv* env, Symbol* name, Symbol* sig, T value) { | |
655 ResourceMark rm(thread); | |
656 jclass clazz = env->FindClass(name->as_C_string()); | |
657 CHECK_JNI_EXCEPTION_(env, NULL); | |
658 jmethodID methodID = env->GetStaticMethodID(clazz, | |
659 vmSymbols::valueOf_name()->as_C_string(), | |
660 sig->as_C_string()); | |
661 CHECK_JNI_EXCEPTION_(env, NULL); | |
662 jobject result = env->CallStaticObjectMethod(clazz, methodID, value); | |
663 CHECK_JNI_EXCEPTION_(env, NULL); | |
664 return result; | |
665 } | |
666 | |
667 static jobject booleanBox(JavaThread* thread, JNIEnv* env, jboolean value) { | |
668 return box(thread, env, vmSymbols::java_lang_Boolean(), vmSymbols::Boolean_valueOf_signature(), value); | |
669 } | |
670 static jobject integerBox(JavaThread* thread, JNIEnv* env, jint value) { | |
671 return box(thread, env, vmSymbols::java_lang_Integer(), vmSymbols::Integer_valueOf_signature(), value); | |
672 } | |
673 static jobject longBox(JavaThread* thread, JNIEnv* env, jlong value) { | |
674 return box(thread, env, vmSymbols::java_lang_Long(), vmSymbols::Long_valueOf_signature(), value); | |
675 } | |
676 /* static jobject floatBox(JavaThread* thread, JNIEnv* env, jfloat value) { | |
677 return box(thread, env, vmSymbols::java_lang_Float(), vmSymbols::Float_valueOf_signature(), value); | |
678 }*/ | |
679 static jobject doubleBox(JavaThread* thread, JNIEnv* env, jdouble value) { | |
680 return box(thread, env, vmSymbols::java_lang_Double(), vmSymbols::Double_valueOf_signature(), value); | |
681 } | |
682 | |
683 WB_ENTRY(jobject, WB_GetBooleanVMFlag(JNIEnv* env, jobject o, jstring name)) | |
684 bool result; | |
685 if (GetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAt)) { | |
686 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
687 return booleanBox(thread, env, result); | |
688 } | |
689 return NULL; | |
690 WB_END | |
691 | |
692 WB_ENTRY(jobject, WB_GetIntxVMFlag(JNIEnv* env, jobject o, jstring name)) | |
693 intx result; | |
694 if (GetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAt)) { | |
695 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
696 return longBox(thread, env, result); | |
697 } | |
698 return NULL; | |
699 WB_END | |
700 | |
701 WB_ENTRY(jobject, WB_GetUintxVMFlag(JNIEnv* env, jobject o, jstring name)) | |
702 uintx result; | |
703 if (GetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAt)) { | |
704 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
705 return longBox(thread, env, result); | |
706 } | |
707 return NULL; | |
708 WB_END | |
709 | |
710 WB_ENTRY(jobject, WB_GetUint64VMFlag(JNIEnv* env, jobject o, jstring name)) | |
711 uint64_t result; | |
712 if (GetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAt)) { | |
713 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
714 return longBox(thread, env, result); | |
715 } | |
716 return NULL; | |
717 WB_END | |
718 | |
719 WB_ENTRY(jobject, WB_GetDoubleVMFlag(JNIEnv* env, jobject o, jstring name)) | |
720 double result; | |
721 if (GetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAt)) { | |
722 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
723 return doubleBox(thread, env, result); | |
724 } | |
725 return NULL; | |
726 WB_END | |
727 | |
728 WB_ENTRY(jstring, WB_GetStringVMFlag(JNIEnv* env, jobject o, jstring name)) | |
729 ccstr ccstrResult; | |
730 if (GetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAt)) { | |
731 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
732 jstring result = env->NewStringUTF(ccstrResult); | |
733 CHECK_JNI_EXCEPTION_(env, NULL); | |
734 return result; | |
735 } | |
736 return NULL; | |
737 WB_END | |
738 | |
739 WB_ENTRY(void, WB_SetBooleanVMFlag(JNIEnv* env, jobject o, jstring name, jboolean value)) | |
740 bool result = value == JNI_TRUE ? true : false; | |
741 SetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAtPut); | |
742 WB_END | |
743 | |
744 WB_ENTRY(void, WB_SetIntxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
745 intx result = value; | |
746 SetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAtPut); | |
747 WB_END | |
748 | |
749 WB_ENTRY(void, WB_SetUintxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
750 uintx result = value; | |
751 SetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAtPut); | |
752 WB_END | |
753 | |
754 WB_ENTRY(void, WB_SetUint64VMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
755 uint64_t result = value; | |
756 SetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAtPut); | |
757 WB_END | |
758 | |
759 WB_ENTRY(void, WB_SetDoubleVMFlag(JNIEnv* env, jobject o, jstring name, jdouble value)) | |
760 double result = value; | |
761 SetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAtPut); | |
762 WB_END | |
763 | |
764 WB_ENTRY(void, WB_SetStringVMFlag(JNIEnv* env, jobject o, jstring name, jstring value)) | |
765 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
766 const char* ccstrValue = (value == NULL) ? NULL : env->GetStringUTFChars(value, NULL); | |
767 ccstr ccstrResult = ccstrValue; | |
768 bool needFree; | |
769 { | |
770 ThreadInVMfromNative ttvfn(thread); // back to VM | |
771 needFree = SetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAtPut); | |
772 } | |
773 if (value != NULL) { | |
774 env->ReleaseStringUTFChars(value, ccstrValue); | |
775 } | |
776 if (needFree) { | |
777 FREE_C_HEAP_ARRAY(char, ccstrResult, mtInternal); | |
778 } | |
779 WB_END | |
780 | |
781 | |
8850 | 782 WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString)) |
783 ResourceMark rm(THREAD); | |
784 int len; | |
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785 jchar* name = java_lang_String::as_unicode_string(JNIHandles::resolve(javaString), len, CHECK_false); |
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786 return (StringTable::lookup(name, len) != NULL); |
8850 | 787 WB_END |
788 | |
789 WB_ENTRY(void, WB_FullGC(JNIEnv* env, jobject o)) | |
790 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(true); | |
791 Universe::heap()->collect(GCCause::_last_ditch_collection); | |
20451 | 792 #if INCLUDE_ALL_GCS |
793 if (UseG1GC) { | |
794 // Needs to be cleared explicitly for G1 | |
795 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(false); | |
796 } | |
797 #endif // INCLUDE_ALL_GCS | |
8850 | 798 WB_END |
799 | |
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800 WB_ENTRY(void, WB_YoungGC(JNIEnv* env, jobject o)) |
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801 Universe::heap()->collect(GCCause::_wb_young_gc); |
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802 WB_END |
10157 | 803 |
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804 WB_ENTRY(void, WB_ReadReservedMemory(JNIEnv* env, jobject o)) |
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805 // static+volatile in order to force the read to happen |
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806 // (not be eliminated by the compiler) |
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807 static char c; |
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808 static volatile char* p; |
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809 |
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810 p = os::reserve_memory(os::vm_allocation_granularity(), NULL, 0); |
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811 if (p == NULL) { |
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812 THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(), "Failed to reserve memory"); |
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813 } |
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814 |
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815 c = *p; |
10157 | 816 WB_END |
817 | |
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818 WB_ENTRY(jstring, WB_GetCPUFeatures(JNIEnv* env, jobject o)) |
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819 const char* cpu_features = VM_Version::cpu_features(); |
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820 ThreadToNativeFromVM ttn(thread); |
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821 jstring features_string = env->NewStringUTF(cpu_features); |
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822 |
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823 CHECK_JNI_EXCEPTION_(env, NULL); |
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824 |
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825 return features_string; |
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826 WB_END |
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827 |
17817 | 828 |
829 WB_ENTRY(jobjectArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) | |
830 ResourceMark rm(THREAD); | |
831 jmethodID jmid = reflected_method_to_jmid(thread, env, method); | |
832 CHECK_JNI_EXCEPTION_(env, NULL); | |
833 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); | |
834 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); | |
835 jobjectArray result = NULL; | |
836 if (code == NULL) { | |
837 return result; | |
838 } | |
839 int insts_size = code->insts_size(); | |
840 | |
841 ThreadToNativeFromVM ttn(thread); | |
842 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string()); | |
843 CHECK_JNI_EXCEPTION_(env, NULL); | |
844 result = env->NewObjectArray(2, clazz, NULL); | |
845 if (result == NULL) { | |
846 return result; | |
847 } | |
848 | |
20249 | 849 jobject obj = integerBox(thread, env, code->comp_level()); |
17817 | 850 CHECK_JNI_EXCEPTION_(env, NULL); |
851 env->SetObjectArrayElement(result, 0, obj); | |
852 | |
853 jbyteArray insts = env->NewByteArray(insts_size); | |
854 CHECK_JNI_EXCEPTION_(env, NULL); | |
855 env->SetByteArrayRegion(insts, 0, insts_size, (jbyte*) code->insts_begin()); | |
856 env->SetObjectArrayElement(result, 1, insts); | |
857 | |
858 return result; | |
859 WB_END | |
860 | |
861 | |
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862 int WhiteBox::array_bytes_to_length(size_t bytes) { |
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863 return Array<u1>::bytes_to_length(bytes); |
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864 } |
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865 |
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866 WB_ENTRY(jlong, WB_AllocateMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong size)) |
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867 if (size < 0) { |
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868 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
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869 err_msg("WB_AllocateMetaspace: size is negative: " JLONG_FORMAT, size)); |
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870 } |
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871 |
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872 oop class_loader_oop = JNIHandles::resolve(class_loader); |
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873 ClassLoaderData* cld = class_loader_oop != NULL |
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874 ? java_lang_ClassLoader::loader_data(class_loader_oop) |
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875 : ClassLoaderData::the_null_class_loader_data(); |
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876 |
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877 void* metadata = MetadataFactory::new_writeable_array<u1>(cld, WhiteBox::array_bytes_to_length((size_t)size), thread); |
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878 |
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879 return (jlong)(uintptr_t)metadata; |
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|
880 WB_END |
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|
881 |
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882 WB_ENTRY(void, WB_FreeMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong addr, jlong size)) |
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883 oop class_loader_oop = JNIHandles::resolve(class_loader); |
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884 ClassLoaderData* cld = class_loader_oop != NULL |
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885 ? java_lang_ClassLoader::loader_data(class_loader_oop) |
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886 : ClassLoaderData::the_null_class_loader_data(); |
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887 |
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888 MetadataFactory::free_array(cld, (Array<u1>*)(uintptr_t)addr); |
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889 WB_END |
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|
890 |
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891 WB_ENTRY(jlong, WB_IncMetaspaceCapacityUntilGC(JNIEnv* env, jobject wb, jlong inc)) |
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892 if (inc < 0) { |
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893 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
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894 err_msg("WB_IncMetaspaceCapacityUntilGC: inc is negative: " JLONG_FORMAT, inc)); |
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|
895 } |
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|
896 |
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897 jlong max_size_t = (jlong) ((size_t) -1); |
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898 if (inc > max_size_t) { |
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899 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
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900 err_msg("WB_IncMetaspaceCapacityUntilGC: inc does not fit in size_t: " JLONG_FORMAT, inc)); |
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901 } |
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|
902 |
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903 size_t new_cap_until_GC = 0; |
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904 size_t aligned_inc = align_size_down((size_t) inc, Metaspace::commit_alignment()); |
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905 bool success = MetaspaceGC::inc_capacity_until_GC(aligned_inc, &new_cap_until_GC); |
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906 if (!success) { |
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|
907 THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(), |
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908 "WB_IncMetaspaceCapacityUntilGC: could not increase capacity until GC " |
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909 "due to contention with another thread"); |
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|
910 } |
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911 return (jlong) new_cap_until_GC; |
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|
912 WB_END |
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|
913 |
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914 WB_ENTRY(jlong, WB_MetaspaceCapacityUntilGC(JNIEnv* env, jobject wb)) |
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915 return (jlong) MetaspaceGC::capacity_until_GC(); |
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916 WB_END |
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|
917 |
23893 | 918 WB_ENTRY(jboolean, WB_IsSharedClass(JNIEnv* env, jobject wb, jclass clazz)) |
919 return (jboolean)MetaspaceShared::is_in_shared_space(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); | |
920 WB_END | |
921 | |
22993
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922 WB_ENTRY(jboolean, WB_IsMonitorInflated(JNIEnv* env, jobject wb, jobject obj)) |
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923 oop obj_oop = JNIHandles::resolve(obj); |
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924 return (jboolean) obj_oop->mark()->has_monitor(); |
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925 WB_END |
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|
926 |
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|
927 WB_ENTRY(void, WB_ForceSafepoint(JNIEnv* env, jobject wb)) |
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928 VM_ForceSafepoint force_safepoint_op; |
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929 VMThread::execute(&force_safepoint_op); |
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|
930 WB_END |
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|
931 |
5978
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|
932 //Some convenience methods to deal with objects from java |
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933 int WhiteBox::offset_for_field(const char* field_name, oop object, |
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|
934 Symbol* signature_symbol) { |
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|
935 assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid"); |
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|
936 Thread* THREAD = Thread::current(); |
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|
937 |
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|
938 //Get the class of our object |
6725
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6964458: Reimplement class meta-data storage to use native memory
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6202
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|
939 Klass* arg_klass = object->klass(); |
5978
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|
940 //Turn it into an instance-klass |
6725
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941 InstanceKlass* ik = InstanceKlass::cast(arg_klass); |
5978
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|
942 |
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|
943 //Create symbols to look for in the class |
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|
944 TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name), |
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|
945 THREAD); |
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|
946 |
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|
947 //To be filled in with an offset of the field we're looking for |
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|
948 fieldDescriptor fd; |
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|
949 |
6725
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950 Klass* res = ik->find_field(name_symbol, signature_symbol, &fd); |
5978
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951 if (res == NULL) { |
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|
952 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), |
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953 name_symbol->as_C_string()); |
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22977
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|
954 vm_exit_during_initialization("Invalid layout of preloaded class: use -XX:+TraceClassLoading to see the origin of the problem class"); |
5978
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|
955 } |
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|
956 |
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|
957 //fetch the field at the offset we've found |
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|
958 int dest_offset = fd.offset(); |
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|
959 |
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|
960 return dest_offset; |
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|
961 } |
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|
962 |
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|
963 |
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|
964 const char* WhiteBox::lookup_jstring(const char* field_name, oop object) { |
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|
965 int offset = offset_for_field(field_name, object, |
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|
966 vmSymbols::string_signature()); |
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|
967 oop string = object->obj_field(offset); |
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7178703: Fix handling of quoted arguments and better error messages in dcmd
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5978
diff
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|
968 if (string == NULL) { |
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|
969 return NULL; |
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|
970 } |
5978
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|
971 const char* ret = java_lang_String::as_utf8_string(string); |
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|
972 return ret; |
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5915
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|
973 } |
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5915
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|
974 |
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|
975 bool WhiteBox::lookup_bool(const char* field_name, oop object) { |
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|
976 int offset = |
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|
977 offset_for_field(field_name, object, vmSymbols::bool_signature()); |
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|
978 bool ret = (object->bool_field(offset) == JNI_TRUE); |
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|
979 return ret; |
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|
980 } |
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|
981 |
20451 | 982 void WhiteBox::register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread, JNINativeMethod* method_array, int method_count) { |
983 ResourceMark rm; | |
984 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
985 | |
986 // one by one registration natives for exception catching | |
987 jclass no_such_method_error_klass = env->FindClass(vmSymbols::java_lang_NoSuchMethodError()->as_C_string()); | |
988 CHECK_JNI_EXCEPTION(env); | |
989 for (int i = 0, n = method_count; i < n; ++i) { | |
990 // Skip dummy entries | |
991 if (method_array[i].fnPtr == NULL) continue; | |
992 if (env->RegisterNatives(wbclass, &method_array[i], 1) != 0) { | |
993 jthrowable throwable_obj = env->ExceptionOccurred(); | |
994 if (throwable_obj != NULL) { | |
995 env->ExceptionClear(); | |
996 if (env->IsInstanceOf(throwable_obj, no_such_method_error_klass)) { | |
997 // NoSuchMethodError is thrown when a method can't be found or a method is not native. | |
998 // Ignoring the exception since it is not preventing use of other WhiteBox methods. | |
999 tty->print_cr("Warning: 'NoSuchMethodError' on register of sun.hotspot.WhiteBox::%s%s", | |
1000 method_array[i].name, method_array[i].signature); | |
1001 } | |
1002 } else { | |
1003 // Registration failed unexpectedly. | |
1004 tty->print_cr("Warning: unexpected error on register of sun.hotspot.WhiteBox::%s%s. All methods will be unregistered", | |
1005 method_array[i].name, method_array[i].signature); | |
1006 env->UnregisterNatives(wbclass); | |
1007 break; | |
1008 } | |
1009 } | |
1010 } | |
1011 } | |
5978
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|
1012 |
5915 | 1013 #define CC (char*) |
1014 | |
1015 static JNINativeMethod methods[] = { | |
1016 {CC"getObjectAddress", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectAddress }, | |
20357
4bfc44ba0d19
8055098: WB API should be extended to provide information about size and age of object.
tschatzl
parents:
20336
diff
changeset
|
1017 {CC"getObjectSize", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectSize }, |
4bfc44ba0d19
8055098: WB API should be extended to provide information about size and age of object.
tschatzl
parents:
20336
diff
changeset
|
1018 {CC"isObjectInOldGen", CC"(Ljava/lang/Object;)Z", (void*)&WB_isObjectInOldGen }, |
5915 | 1019 {CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize }, |
22975
cc5c3ef1f03a
8053995: Add method to WhiteBox to get vm pagesize.
minqi
parents:
20668
diff
changeset
|
1020 {CC"getVMPageSize", CC"()I", (void*)&WB_GetVMPageSize }, |
22977
33e421924c67
8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29
tschatzl
parents:
22975
diff
changeset
|
1021 {CC"getVMLargePageSize", CC"()J", (void*)&WB_GetVMLargePageSize}, |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1022 {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:
20553
diff
changeset
|
1023 {CC"classKnownToNotExist", |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
parents:
20553
diff
changeset
|
1024 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
parents:
20553
diff
changeset
|
1025 {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
parents:
20553
diff
changeset
|
1026 {CC"getLookupCacheMatches", CC"(Ljava/lang/ClassLoader;Ljava/lang/String;)[I", |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
parents:
20553
diff
changeset
|
1027 (void*)&WB_GetLookupCacheMatches}, |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1028 {CC"parseCommandLine", |
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1029 CC"(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;", |
5978
51612f0c0a79
7148488: Whitebox tests for the Diagnostic Framework Parser
nloodin
parents:
5915
diff
changeset
|
1030 (void*) &WB_ParseCommandLine |
51612f0c0a79
7148488: Whitebox tests for the Diagnostic Framework Parser
nloodin
parents:
5915
diff
changeset
|
1031 }, |
20667
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
parents:
20630
diff
changeset
|
1032 {CC"addToBootstrapClassLoaderSearch", CC"(Ljava/lang/String;)V", |
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
parents:
20630
diff
changeset
|
1033 (void*)&WB_AddToBootstrapClassLoaderSearch}, |
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
parents:
20630
diff
changeset
|
1034 {CC"addToSystemClassLoaderSearch", CC"(Ljava/lang/String;)V", |
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
parents:
20630
diff
changeset
|
1035 (void*)&WB_AddToSystemClassLoaderSearch}, |
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12118
diff
changeset
|
1036 {CC"getCompressedOopsMaxHeapSize", CC"()J", |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12118
diff
changeset
|
1037 (void*)&WB_GetCompressedOopsMaxHeapSize}, |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10208
diff
changeset
|
1038 {CC"printHeapSizes", CC"()V", (void*)&WB_PrintHeapSizes }, |
13053
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
mgerdin
parents:
12233
diff
changeset
|
1039 {CC"runMemoryUnitTests", CC"()V", (void*)&WB_RunMemoryUnitTests}, |
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
mgerdin
parents:
12233
diff
changeset
|
1040 {CC"readFromNoaccessArea",CC"()V", (void*)&WB_ReadFromNoaccessArea}, |
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
mgerdin
parents:
12233
diff
changeset
|
1041 {CC"stressVirtualSpaceResize",CC"(JJJ)I", (void*)&WB_StressVirtualSpaceResize}, |
23893 | 1042 {CC"isSharedClass", CC"(Ljava/lang/Class;)Z", (void*)&WB_IsSharedClass }, |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
1043 #if INCLUDE_ALL_GCS |
5915 | 1044 {CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark}, |
1045 {CC"g1IsHumongous", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous }, | |
23031
e5406a79ae90
8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before
azakharov
parents:
22993
diff
changeset
|
1046 {CC"g1NumMaxRegions", CC"()J", (void*)&WB_G1NumMaxRegions }, |
5915 | 1047 {CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions }, |
1048 {CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize }, | |
23472
047a642c9729
8065579: WB method to start G1 concurrent mark cycle should be introduced
kevinw
parents:
23031
diff
changeset
|
1049 {CC"g1StartConcMarkCycle", CC"()Z", (void*)&WB_G1StartMarkCycle }, |
23031
e5406a79ae90
8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before
azakharov
parents:
22993
diff
changeset
|
1050 {CC"g1AuxiliaryMemoryUsage", CC"()Ljava/lang/management/MemoryUsage;", |
e5406a79ae90
8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before
azakharov
parents:
22993
diff
changeset
|
1051 (void*)&WB_G1AuxiliaryMemoryUsage }, |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
1052 #endif // INCLUDE_ALL_GCS |
12118
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
12073
diff
changeset
|
1053 #if INCLUDE_NMT |
9056
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1054 {CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc }, |
20360 | 1055 {CC"NMTMallocWithPseudoStack", CC"(JI)J", (void*)&WB_NMTMallocWithPseudoStack}, |
9056
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1056 {CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree }, |
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1057 {CC"NMTReserveMemory", CC"(J)J", (void*)&WB_NMTReserveMemory }, |
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1058 {CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory }, |
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1059 {CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory }, |
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1060 {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
|
1061 {CC"NMTIsDetailSupported",CC"()Z", (void*)&WB_NMTIsDetailSupported}, |
20553
417e3b8d04c5
8059100: SIGSEGV VirtualMemoryTracker::remove_released_region
coleenp
parents:
20540
diff
changeset
|
1062 {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
|
1063 {CC"NMTGetHashSize", CC"()I", (void*)&WB_NMTGetHashSize }, |
7971
4102b59539ce
8005012: Add WB APIs to better support NMT testing
ctornqvi
parents:
6725
diff
changeset
|
1064 #endif // INCLUDE_NMT |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1065 {CC"deoptimizeAll", CC"()V", (void*)&WB_DeoptimizeAll }, |
12073 | 1066 {CC"deoptimizeMethod", CC"(Ljava/lang/reflect/Executable;Z)I", |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1067 (void*)&WB_DeoptimizeMethod }, |
12073 | 1068 {CC"isMethodCompiled", CC"(Ljava/lang/reflect/Executable;Z)Z", |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1069 (void*)&WB_IsMethodCompiled }, |
12073 | 1070 {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Executable;IZ)Z", |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1071 (void*)&WB_IsMethodCompilable}, |
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1072 {CC"isMethodQueuedForCompilation", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
iignatyev
parents:
9085
diff
changeset
|
1073 CC"(Ljava/lang/reflect/Executable;)Z", (void*)&WB_IsMethodQueuedForCompilation}, |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1074 {CC"makeMethodNotCompilable", |
12073 | 1075 CC"(Ljava/lang/reflect/Executable;IZ)V", (void*)&WB_MakeMethodNotCompilable}, |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8850
diff
changeset
|
1076 {CC"testSetDontInlineMethod", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
iignatyev
parents:
9085
diff
changeset
|
1077 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetDontInlineMethod}, |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1078 {CC"getMethodCompilationLevel", |
12073 | 1079 CC"(Ljava/lang/reflect/Executable;Z)I", (void*)&WB_GetMethodCompilationLevel}, |
1080 {CC"getMethodEntryBci", | |
1081 CC"(Ljava/lang/reflect/Executable;)I", (void*)&WB_GetMethodEntryBci}, | |
1082 {CC"getCompileQueueSize", | |
1083 CC"(I)I", (void*)&WB_GetCompileQueueSize}, | |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8850
diff
changeset
|
1084 {CC"testSetForceInlineMethod", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
iignatyev
parents:
9085
diff
changeset
|
1085 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetForceInlineMethod}, |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8850
diff
changeset
|
1086 {CC"enqueueMethodForCompilation", |
12073 | 1087 CC"(Ljava/lang/reflect/Executable;II)Z", (void*)&WB_EnqueueMethodForCompilation}, |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8850
diff
changeset
|
1088 {CC"clearMethodState", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
iignatyev
parents:
9085
diff
changeset
|
1089 CC"(Ljava/lang/reflect/Executable;)V", (void*)&WB_ClearMethodState}, |
20249 | 1090 {CC"setBooleanVMFlag", CC"(Ljava/lang/String;Z)V",(void*)&WB_SetBooleanVMFlag}, |
1091 {CC"setIntxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetIntxVMFlag}, | |
1092 {CC"setUintxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUintxVMFlag}, | |
1093 {CC"setUint64VMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUint64VMFlag}, | |
1094 {CC"setDoubleVMFlag", CC"(Ljava/lang/String;D)V",(void*)&WB_SetDoubleVMFlag}, | |
1095 {CC"setStringVMFlag", CC"(Ljava/lang/String;Ljava/lang/String;)V", | |
1096 (void*)&WB_SetStringVMFlag}, | |
1097 {CC"getBooleanVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Boolean;", | |
1098 (void*)&WB_GetBooleanVMFlag}, | |
1099 {CC"getIntxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1100 (void*)&WB_GetIntxVMFlag}, | |
1101 {CC"getUintxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1102 (void*)&WB_GetUintxVMFlag}, | |
1103 {CC"getUint64VMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1104 (void*)&WB_GetUint64VMFlag}, | |
1105 {CC"getDoubleVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Double;", | |
1106 (void*)&WB_GetDoubleVMFlag}, | |
1107 {CC"getStringVMFlag", CC"(Ljava/lang/String;)Ljava/lang/String;", | |
1108 (void*)&WB_GetStringVMFlag}, | |
1109 {CC"isInStringTable", CC"(Ljava/lang/String;)Z", (void*)&WB_IsInStringTable }, | |
8850 | 1110 {CC"fullGC", CC"()V", (void*)&WB_FullGC }, |
20357
4bfc44ba0d19
8055098: WB API should be extended to provide information about size and age of object.
tschatzl
parents:
20336
diff
changeset
|
1111 {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
|
1112 {CC"readReservedMemory", CC"()V", (void*)&WB_ReadReservedMemory }, |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
1113 {CC"allocateMetaspace", |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
1114 CC"(Ljava/lang/ClassLoader;J)J", (void*)&WB_AllocateMetaspace }, |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
1115 {CC"freeMetaspace", |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
1116 CC"(Ljava/lang/ClassLoader;JJ)V", (void*)&WB_FreeMetaspace }, |
20540
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
ehelin
parents:
20465
diff
changeset
|
1117 {CC"incMetaspaceCapacityUntilGC", CC"(J)J", (void*)&WB_IncMetaspaceCapacityUntilGC }, |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
ehelin
parents:
20465
diff
changeset
|
1118 {CC"metaspaceCapacityUntilGC", CC"()J", (void*)&WB_MetaspaceCapacityUntilGC }, |
17778
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
iignatyev
parents:
14370
diff
changeset
|
1119 {CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures }, |
17817 | 1120 {CC"getNMethod", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;", |
1121 (void*)&WB_GetNMethod }, | |
22993
e9a7f132cec3
8068272: Extend WhiteBox API with methods that check monitor state and force safepoint
bmoloden
parents:
22984
diff
changeset
|
1122 {CC"isMonitorInflated", CC"(Ljava/lang/Object;)Z", (void*)&WB_IsMonitorInflated }, |
e9a7f132cec3
8068272: Extend WhiteBox API with methods that check monitor state and force safepoint
bmoloden
parents:
22984
diff
changeset
|
1123 {CC"forceSafepoint", CC"()V", (void*)&WB_ForceSafepoint }, |
5915 | 1124 }; |
1125 | |
1126 #undef CC | |
1127 | |
1128 JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass)) | |
1129 { | |
1130 if (WhiteBoxAPI) { | |
1131 // Make sure that wbclass is loaded by the null classloader | |
1132 instanceKlassHandle ikh = instanceKlassHandle(JNIHandles::resolve(wbclass)->klass()); | |
1133 Handle loader(ikh->class_loader()); | |
1134 if (loader.is_null()) { | |
20451 | 1135 WhiteBox::register_methods(env, wbclass, thread, methods, sizeof(methods) / sizeof(methods[0])); |
1136 WhiteBox::register_extended(env, wbclass, thread); | |
1137 WhiteBox::set_used(); | |
5915 | 1138 } |
1139 } | |
1140 } | |
1141 JVM_END |