Mercurial > hg > graal-jvmci-8
annotate src/share/vm/prims/whitebox.cpp @ 23031:e5406a79ae90
8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before
Summary: added WhiteBox methods to count regions and exact aux data sizes
Reviewed-by: jwilhelm, brutisso
author | azakharov |
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date | Tue, 19 May 2015 15:49:27 +0200 |
parents | e9a7f132cec3 |
children | dd9cc155639c 047a642c9729 |
rev | line source |
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5915 | 1 /* |
17817 | 2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. |
5915 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #include "precompiled.hpp" | |
26 | |
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27 #include "memory/metadataFactory.hpp" |
5915 | 28 #include "memory/universe.hpp" |
29 #include "oops/oop.inline.hpp" | |
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30 |
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31 #include "classfile/symbolTable.hpp" |
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32 #include "classfile/classLoaderData.hpp" |
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33 |
5915 | 34 #include "prims/whitebox.hpp" |
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35 #include "prims/wbtestmethods/parserTests.hpp" |
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36 |
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37 #include "runtime/arguments.hpp" |
5915 | 38 #include "runtime/interfaceSupport.hpp" |
39 #include "runtime/os.hpp" | |
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40 #include "utilities/array.hpp" |
5915 | 41 #include "utilities/debug.hpp" |
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42 #include "utilities/macros.hpp" |
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43 #include "utilities/exceptions.hpp" |
5915 | 44 |
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45 #if INCLUDE_ALL_GCS |
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46 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp" |
5915 | 47 #include "gc_implementation/g1/concurrentMark.hpp" |
48 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
49 #include "gc_implementation/g1/heapRegionRemSet.hpp" | |
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50 #endif // INCLUDE_ALL_GCS |
5915 | 51 |
20360 | 52 #if INCLUDE_NMT |
53 #include "services/mallocSiteTable.hpp" | |
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54 #include "services/memTracker.hpp" |
20360 | 55 #include "utilities/nativeCallStack.hpp" |
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56 #endif // INCLUDE_NMT |
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57 |
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58 #include "compiler/compileBroker.hpp" |
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59 #include "jvmtifiles/jvmtiEnv.hpp" |
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60 #include "runtime/compilationPolicy.hpp" |
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61 |
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62 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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63 |
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64 #define SIZE_T_MAX_VALUE ((size_t) -1) |
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65 |
5915 | 66 bool WhiteBox::_used = false; |
67 | |
68 WB_ENTRY(jlong, WB_GetObjectAddress(JNIEnv* env, jobject o, jobject obj)) | |
69 return (jlong)(void*)JNIHandles::resolve(obj); | |
70 WB_END | |
71 | |
72 WB_ENTRY(jint, WB_GetHeapOopSize(JNIEnv* env, jobject o)) | |
73 return heapOopSize; | |
74 WB_END | |
75 | |
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76 WB_ENTRY(jint, WB_GetVMPageSize(JNIEnv* env, jobject o)) |
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77 return os::vm_page_size(); |
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78 WB_END |
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79 |
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80 WB_ENTRY(jlong, WB_GetVMLargePageSize(JNIEnv* env, jobject o)) |
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81 return os::large_page_size(); |
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82 WB_END |
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83 |
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84 class WBIsKlassAliveClosure : public KlassClosure { |
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85 Symbol* _name; |
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86 bool _found; |
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87 public: |
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88 WBIsKlassAliveClosure(Symbol* name) : _name(name), _found(false) {} |
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89 |
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90 void do_klass(Klass* k) { |
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91 if (_found) return; |
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92 Symbol* ksym = k->name(); |
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93 if (ksym->fast_compare(_name) == 0) { |
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94 _found = true; |
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95 } |
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96 } |
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97 |
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98 bool found() const { |
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99 return _found; |
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100 } |
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101 }; |
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102 |
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103 WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name)) |
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104 Handle h_name = JNIHandles::resolve(name); |
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105 if (h_name.is_null()) return false; |
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106 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false); |
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107 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return |
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108 |
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109 WBIsKlassAliveClosure closure(sym); |
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110 ClassLoaderDataGraph::classes_do(&closure); |
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111 |
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112 return closure.found(); |
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113 WB_END |
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114 |
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115 WB_ENTRY(jboolean, WB_ClassKnownToNotExist(JNIEnv* env, jobject o, jobject loader, jstring name)) |
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116 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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117 const char* class_name = env->GetStringUTFChars(name, NULL); |
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118 jboolean result = JVM_KnownToNotExist(env, loader, class_name); |
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119 env->ReleaseStringUTFChars(name, class_name); |
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120 return result; |
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121 WB_END |
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122 |
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123 WB_ENTRY(jobjectArray, WB_GetLookupCacheURLs(JNIEnv* env, jobject o, jobject loader)) |
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124 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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125 return JVM_GetResourceLookupCacheURLs(env, loader); |
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126 WB_END |
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127 |
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128 WB_ENTRY(jintArray, WB_GetLookupCacheMatches(JNIEnv* env, jobject o, jobject loader, jstring name)) |
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129 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI |
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130 const char* resource_name = env->GetStringUTFChars(name, NULL); |
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131 jintArray result = JVM_GetResourceLookupCache(env, loader, resource_name); |
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132 |
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133 env->ReleaseStringUTFChars(name, resource_name); |
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134 return result; |
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135 WB_END |
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136 |
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137 WB_ENTRY(void, WB_AddToBootstrapClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) { |
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138 #if INCLUDE_JVMTI |
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139 ResourceMark rm; |
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140 const char* seg = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(segment)); |
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141 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION); |
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142 jvmtiError err = jvmti_env->AddToBootstrapClassLoaderSearch(seg); |
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143 assert(err == JVMTI_ERROR_NONE, "must not fail"); |
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144 #endif |
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145 } |
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146 WB_END |
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147 |
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148 WB_ENTRY(void, WB_AddToSystemClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) { |
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149 #if INCLUDE_JVMTI |
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150 ResourceMark rm; |
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151 const char* seg = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(segment)); |
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152 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION); |
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153 jvmtiError err = jvmti_env->AddToSystemClassLoaderSearch(seg); |
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154 assert(err == JVMTI_ERROR_NONE, "must not fail"); |
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155 #endif |
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156 } |
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157 WB_END |
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158 |
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159 |
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160 WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) { |
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161 return (jlong)Arguments::max_heap_for_compressed_oops(); |
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162 } |
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163 WB_END |
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164 |
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165 WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) { |
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166 CollectorPolicy * p = Universe::heap()->collector_policy(); |
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167 gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap " |
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168 SIZE_FORMAT" Maximum heap "SIZE_FORMAT" Min alignment "SIZE_FORMAT" Max alignment "SIZE_FORMAT, |
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169 p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(), |
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170 p->space_alignment(), p->heap_alignment()); |
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171 } |
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172 WB_END |
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173 |
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174 #ifndef PRODUCT |
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175 // Forward declaration |
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176 void TestReservedSpace_test(); |
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177 void TestReserveMemorySpecial_test(); |
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178 void TestVirtualSpace_test(); |
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179 void TestMetaspaceAux_test(); |
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180 #endif |
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181 |
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182 WB_ENTRY(void, WB_RunMemoryUnitTests(JNIEnv* env, jobject o)) |
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183 #ifndef PRODUCT |
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184 TestReservedSpace_test(); |
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185 TestReserveMemorySpecial_test(); |
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186 TestVirtualSpace_test(); |
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187 TestMetaspaceAux_test(); |
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188 #endif |
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189 WB_END |
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190 |
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191 WB_ENTRY(void, WB_ReadFromNoaccessArea(JNIEnv* env, jobject o)) |
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192 size_t granularity = os::vm_allocation_granularity(); |
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193 ReservedHeapSpace rhs(100 * granularity, granularity, false, NULL); |
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194 VirtualSpace vs; |
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195 vs.initialize(rhs, 50 * granularity); |
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196 |
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197 //Check if constraints are complied |
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198 if (!( UseCompressedOops && rhs.base() != NULL && |
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199 Universe::narrow_oop_base() != NULL && |
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200 Universe::narrow_oop_use_implicit_null_checks() )) { |
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201 tty->print_cr("WB_ReadFromNoaccessArea method is useless:\n " |
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202 "\tUseCompressedOops is %d\n" |
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203 "\trhs.base() is "PTR_FORMAT"\n" |
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204 "\tUniverse::narrow_oop_base() is "PTR_FORMAT"\n" |
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205 "\tUniverse::narrow_oop_use_implicit_null_checks() is %d", |
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206 UseCompressedOops, |
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207 rhs.base(), |
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208 Universe::narrow_oop_base(), |
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209 Universe::narrow_oop_use_implicit_null_checks()); |
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210 return; |
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211 } |
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212 tty->print_cr("Reading from no access area... "); |
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213 tty->print_cr("*(vs.low_boundary() - rhs.noaccess_prefix() / 2 ) = %c", |
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214 *(vs.low_boundary() - rhs.noaccess_prefix() / 2 )); |
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215 WB_END |
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216 |
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217 static jint wb_stress_virtual_space_resize(size_t reserved_space_size, |
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218 size_t magnitude, size_t iterations) { |
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219 size_t granularity = os::vm_allocation_granularity(); |
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220 ReservedHeapSpace rhs(reserved_space_size * granularity, granularity, false, NULL); |
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221 VirtualSpace vs; |
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222 if (!vs.initialize(rhs, 0)) { |
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223 tty->print_cr("Failed to initialize VirtualSpace. Can't proceed."); |
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224 return 3; |
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225 } |
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226 |
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227 long seed = os::random(); |
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228 tty->print_cr("Random seed is %ld", seed); |
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229 os::init_random(seed); |
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230 |
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231 for (size_t i = 0; i < iterations; i++) { |
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232 |
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233 // Whether we will shrink or grow |
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234 bool shrink = os::random() % 2L == 0; |
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235 |
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236 // Get random delta to resize virtual space |
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237 size_t delta = (size_t)os::random() % magnitude; |
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238 |
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239 // If we are about to shrink virtual space below zero, then expand instead |
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240 if (shrink && vs.committed_size() < delta) { |
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241 shrink = false; |
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242 } |
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243 |
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244 // Resizing by delta |
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245 if (shrink) { |
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246 vs.shrink_by(delta); |
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247 } else { |
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248 // If expanding fails expand_by will silently return false |
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249 vs.expand_by(delta, true); |
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250 } |
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251 } |
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252 return 0; |
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253 } |
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254 |
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255 WB_ENTRY(jint, WB_StressVirtualSpaceResize(JNIEnv* env, jobject o, |
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256 jlong reserved_space_size, jlong magnitude, jlong iterations)) |
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257 tty->print_cr("reservedSpaceSize="JLONG_FORMAT", magnitude="JLONG_FORMAT", " |
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258 "iterations="JLONG_FORMAT"\n", reserved_space_size, magnitude, |
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259 iterations); |
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260 if (reserved_space_size < 0 || magnitude < 0 || iterations < 0) { |
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261 tty->print_cr("One of variables printed above is negative. Can't proceed.\n"); |
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262 return 1; |
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263 } |
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264 |
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265 // sizeof(size_t) depends on whether OS is 32bit or 64bit. sizeof(jlong) is |
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266 // always 8 byte. That's why we should avoid overflow in case of 32bit platform. |
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267 if (sizeof(size_t) < sizeof(jlong)) { |
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268 jlong size_t_max_value = (jlong) SIZE_T_MAX_VALUE; |
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269 if (reserved_space_size > size_t_max_value || magnitude > size_t_max_value |
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270 || iterations > size_t_max_value) { |
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271 tty->print_cr("One of variables printed above overflows size_t. Can't proceed.\n"); |
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272 return 2; |
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273 } |
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274 } |
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275 |
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276 return wb_stress_virtual_space_resize((size_t) reserved_space_size, |
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277 (size_t) magnitude, (size_t) iterations); |
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278 WB_END |
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279 |
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280 WB_ENTRY(jboolean, WB_isObjectInOldGen(JNIEnv* env, jobject o, jobject obj)) |
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281 oop p = JNIHandles::resolve(obj); |
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282 #if INCLUDE_ALL_GCS |
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283 if (UseG1GC) { |
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284 G1CollectedHeap* g1 = G1CollectedHeap::heap(); |
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285 const HeapRegion* hr = g1->heap_region_containing(p); |
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286 if (hr == NULL) { |
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287 return false; |
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288 } |
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289 return !(hr->is_young()); |
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290 } else if (UseParallelGC) { |
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291 ParallelScavengeHeap* psh = ParallelScavengeHeap::heap(); |
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292 return !psh->is_in_young(p); |
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293 } |
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294 #endif // INCLUDE_ALL_GCS |
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295 GenCollectedHeap* gch = GenCollectedHeap::heap(); |
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296 return !gch->is_in_young(p); |
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297 WB_END |
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298 |
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299 WB_ENTRY(jlong, WB_GetObjectSize(JNIEnv* env, jobject o, jobject obj)) |
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300 oop p = JNIHandles::resolve(obj); |
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301 return p->size() * HeapWordSize; |
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302 WB_END |
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303 |
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304 #if INCLUDE_ALL_GCS |
5915 | 305 WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj)) |
306 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
307 oop result = JNIHandles::resolve(obj); | |
308 const HeapRegion* hr = g1->heap_region_containing(result); | |
309 return hr->isHumongous(); | |
310 WB_END | |
311 | |
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312 WB_ENTRY(jlong, WB_G1NumMaxRegions(JNIEnv* env, jobject o)) |
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313 G1CollectedHeap* g1 = G1CollectedHeap::heap(); |
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314 size_t nr = g1->max_regions(); |
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315 return (jlong)nr; |
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316 WB_END |
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317 |
5915 | 318 WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o)) |
319 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
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320 size_t nr = g1->num_free_regions(); |
5915 | 321 return (jlong)nr; |
322 WB_END | |
323 | |
324 WB_ENTRY(jboolean, WB_G1InConcurrentMark(JNIEnv* env, jobject o)) | |
325 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
326 ConcurrentMark* cm = g1->concurrent_mark(); | |
327 return cm->concurrent_marking_in_progress(); | |
328 WB_END | |
329 | |
330 WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o)) | |
331 return (jint)HeapRegion::GrainBytes; | |
332 WB_END | |
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333 |
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334 WB_ENTRY(jobject, WB_G1AuxiliaryMemoryUsage(JNIEnv* env)) |
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335 ResourceMark rm(THREAD); |
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336 G1CollectedHeap* g1h = G1CollectedHeap::heap(); |
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337 MemoryUsage usage = g1h->get_auxiliary_data_memory_usage(); |
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338 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); |
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339 return JNIHandles::make_local(env, h()); |
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340 WB_END |
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341 #endif // INCLUDE_ALL_GCS |
5915 | 342 |
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343 #if INCLUDE_NMT |
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344 // Alloc memory using the test memory type so that we can use that to see if |
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345 // NMT picks it up correctly |
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346 WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size)) |
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347 jlong addr = 0; |
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348 addr = (jlong)(uintptr_t)os::malloc(size, mtTest); |
20360 | 349 return addr; |
350 WB_END | |
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351 |
20360 | 352 // Alloc memory with pseudo call stack. The test can create psudo malloc |
353 // allocation site to stress the malloc tracking. | |
354 WB_ENTRY(jlong, WB_NMTMallocWithPseudoStack(JNIEnv* env, jobject o, jlong size, jint pseudo_stack)) | |
355 address pc = (address)(size_t)pseudo_stack; | |
356 NativeCallStack stack(&pc, 1); | |
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357 return (jlong)(uintptr_t)os::malloc(size, mtTest, stack); |
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358 WB_END |
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359 |
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360 // Free the memory allocated by NMTAllocTest |
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361 WB_ENTRY(void, WB_NMTFree(JNIEnv* env, jobject o, jlong mem)) |
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362 os::free((void*)(uintptr_t)mem, mtTest); |
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363 WB_END |
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364 |
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365 WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size)) |
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366 jlong addr = 0; |
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367 |
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368 addr = (jlong)(uintptr_t)os::reserve_memory(size); |
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369 MemTracker::record_virtual_memory_type((address)addr, mtTest); |
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370 |
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371 return addr; |
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372 WB_END |
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373 |
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374 |
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375 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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376 os::commit_memory((char *)(uintptr_t)addr, size, !ExecMem); |
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377 MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest); |
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378 WB_END |
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379 |
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380 WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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381 os::uncommit_memory((char *)(uintptr_t)addr, size); |
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382 WB_END |
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383 |
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384 WB_ENTRY(void, WB_NMTReleaseMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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385 os::release_memory((char *)(uintptr_t)addr, size); |
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386 WB_END |
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387 |
20360 | 388 WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env)) |
389 return MemTracker::tracking_level() == NMT_detail; | |
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390 WB_END |
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391 |
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392 WB_ENTRY(jboolean, WB_NMTChangeTrackingLevel(JNIEnv* env)) |
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393 // Test that we can downgrade NMT levels but not upgrade them. |
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394 if (MemTracker::tracking_level() == NMT_off) { |
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395 MemTracker::transition_to(NMT_off); |
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396 return MemTracker::tracking_level() == NMT_off; |
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397 } else { |
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398 assert(MemTracker::tracking_level() == NMT_detail, "Should start out as detail tracking"); |
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399 MemTracker::transition_to(NMT_summary); |
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400 assert(MemTracker::tracking_level() == NMT_summary, "Should be summary now"); |
20360 | 401 |
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402 // Can't go to detail once NMT is set to summary. |
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403 MemTracker::transition_to(NMT_detail); |
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404 assert(MemTracker::tracking_level() == NMT_summary, "Should still be summary now"); |
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405 |
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406 // Shutdown sets tracking level to minimal. |
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407 MemTracker::shutdown(); |
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408 assert(MemTracker::tracking_level() == NMT_minimal, "Should be minimal now"); |
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409 |
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410 // Once the tracking level is minimal, we cannot increase to summary. |
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411 // The code ignores this request instead of asserting because if the malloc site |
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412 // table overflows in another thread, it tries to change the code to summary. |
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413 MemTracker::transition_to(NMT_summary); |
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414 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); |
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415 |
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416 // Really can never go up to detail, verify that the code would never do this. |
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417 MemTracker::transition_to(NMT_detail); |
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418 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); |
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419 return MemTracker::tracking_level() == NMT_minimal; |
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420 } |
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421 WB_END |
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422 |
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423 WB_ENTRY(jint, WB_NMTGetHashSize(JNIEnv* env, jobject o)) |
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424 int hash_size = MallocSiteTable::hash_buckets(); |
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425 assert(hash_size > 0, "NMT hash_size should be > 0"); |
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426 return (jint)hash_size; |
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427 WB_END |
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428 #endif // INCLUDE_NMT |
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429 |
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430 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) { |
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431 assert(method != NULL, "method should not be null"); |
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432 ThreadToNativeFromVM ttn(thread); |
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433 return env->FromReflectedMethod(method); |
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434 } |
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435 |
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436 WB_ENTRY(void, WB_DeoptimizeAll(JNIEnv* env, jobject o)) |
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437 MutexLockerEx mu(Compile_lock); |
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438 CodeCache::mark_all_nmethods_for_deoptimization(); |
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439 VM_Deoptimize op; |
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440 VMThread::execute(&op); |
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441 WB_END |
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442 |
12073 | 443 WB_ENTRY(jint, WB_DeoptimizeMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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444 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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445 int result = 0; |
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446 CHECK_JNI_EXCEPTION_(env, result); |
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447 MutexLockerEx mu(Compile_lock); |
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448 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 449 if (is_osr) { |
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450 result += mh->mark_osr_nmethods(); |
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451 } else if (mh->code() != NULL) { |
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452 mh->code()->mark_for_deoptimization(); |
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453 ++result; |
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454 } |
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455 result += CodeCache::mark_for_deoptimization(mh()); |
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456 if (result > 0) { |
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457 VM_Deoptimize op; |
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458 VMThread::execute(&op); |
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459 } |
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460 return result; |
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461 WB_END |
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462 |
12073 | 463 WB_ENTRY(jboolean, WB_IsMethodCompiled(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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464 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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465 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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466 MutexLockerEx mu(Compile_lock); |
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467 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 468 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); |
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469 if (code == NULL) { |
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470 return JNI_FALSE; |
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471 } |
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472 return (code->is_alive() && !code->is_marked_for_deoptimization()); |
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473 WB_END |
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474 |
12073 | 475 WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) |
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476 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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477 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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478 MutexLockerEx mu(Compile_lock); |
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479 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 480 if (is_osr) { |
481 return CompilationPolicy::can_be_osr_compiled(mh, comp_level); | |
482 } else { | |
483 return CompilationPolicy::can_be_compiled(mh, comp_level); | |
484 } | |
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485 WB_END |
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486 |
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487 WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method)) |
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488 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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489 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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490 MutexLockerEx mu(Compile_lock); |
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491 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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492 return mh->queued_for_compilation(); |
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493 WB_END |
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494 |
12073 | 495 WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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496 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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497 CHECK_JNI_EXCEPTION_(env, CompLevel_none); |
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498 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 499 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); |
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500 return (code != NULL ? code->comp_level() : CompLevel_none); |
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501 WB_END |
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502 |
12073 | 503 WB_ENTRY(void, WB_MakeMethodNotCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) |
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504 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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505 CHECK_JNI_EXCEPTION(env); |
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506 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 507 if (is_osr) { |
508 mh->set_not_osr_compilable(comp_level, true /* report */, "WhiteBox"); | |
509 } else { | |
510 mh->set_not_compilable(comp_level, true /* report */, "WhiteBox"); | |
511 } | |
512 WB_END | |
513 | |
514 WB_ENTRY(jint, WB_GetMethodEntryBci(JNIEnv* env, jobject o, jobject method)) | |
515 jmethodID jmid = reflected_method_to_jmid(thread, env, method); | |
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516 CHECK_JNI_EXCEPTION_(env, InvocationEntryBci); |
12073 | 517 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
518 nmethod* code = mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false); | |
519 return (code != NULL && code->is_osr_method() ? code->osr_entry_bci() : InvocationEntryBci); | |
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520 WB_END |
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521 |
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522 WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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523 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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524 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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525 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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526 bool result = mh->dont_inline(); |
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527 mh->set_dont_inline(value == JNI_TRUE); |
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528 return result; |
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529 WB_END |
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530 |
12073 | 531 WB_ENTRY(jint, WB_GetCompileQueueSize(JNIEnv* env, jobject o, jint comp_level)) |
532 if (comp_level == CompLevel_any) { | |
533 return CompileBroker::queue_size(CompLevel_full_optimization) /* C2 */ + | |
534 CompileBroker::queue_size(CompLevel_full_profile) /* C1 */; | |
535 } else { | |
536 return CompileBroker::queue_size(comp_level); | |
537 } | |
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538 WB_END |
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539 |
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540 WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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541 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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542 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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543 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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544 bool result = mh->force_inline(); |
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545 mh->set_force_inline(value == JNI_TRUE); |
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546 return result; |
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547 WB_END |
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548 |
12073 | 549 WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level, jint bci)) |
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550 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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551 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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552 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 553 nmethod* nm = CompileBroker::compile_method(mh, bci, comp_level, mh, mh->invocation_count(), "WhiteBox", THREAD); |
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554 MutexLockerEx mu(Compile_lock); |
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555 return (mh->queued_for_compilation() || nm != NULL); |
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556 WB_END |
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557 |
17867 | 558 class VM_WhiteBoxOperation : public VM_Operation { |
559 public: | |
560 VM_WhiteBoxOperation() { } | |
561 VMOp_Type type() const { return VMOp_WhiteBoxOperation; } | |
562 bool allow_nested_vm_operations() const { return true; } | |
563 }; | |
564 | |
565 class AlwaysFalseClosure : public BoolObjectClosure { | |
566 public: | |
567 bool do_object_b(oop p) { return false; } | |
568 }; | |
569 | |
570 static AlwaysFalseClosure always_false; | |
571 | |
572 class VM_WhiteBoxCleanMethodData : public VM_WhiteBoxOperation { | |
573 public: | |
574 VM_WhiteBoxCleanMethodData(MethodData* mdo) : _mdo(mdo) { } | |
575 void doit() { | |
576 _mdo->clean_method_data(&always_false); | |
577 } | |
578 private: | |
579 MethodData* _mdo; | |
580 }; | |
581 | |
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582 WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method)) |
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583 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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584 CHECK_JNI_EXCEPTION(env); |
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585 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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586 MutexLockerEx mu(Compile_lock); |
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587 MethodData* mdo = mh->method_data(); |
10107 | 588 MethodCounters* mcs = mh->method_counters(); |
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589 |
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590 if (mdo != NULL) { |
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591 mdo->init(); |
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592 ResourceMark rm; |
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593 int arg_count = mdo->method()->size_of_parameters(); |
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594 for (int i = 0; i < arg_count; i++) { |
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595 mdo->set_arg_modified(i, 0); |
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596 } |
17867 | 597 VM_WhiteBoxCleanMethodData op(mdo); |
598 VMThread::execute(&op); | |
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599 } |
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600 |
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601 mh->clear_not_c1_compilable(); |
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602 mh->clear_not_c2_compilable(); |
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603 mh->clear_not_c2_osr_compilable(); |
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604 NOT_PRODUCT(mh->set_compiled_invocation_count(0)); |
10107 | 605 if (mcs != NULL) { |
606 mcs->backedge_counter()->init(); | |
607 mcs->invocation_counter()->init(); | |
608 mcs->set_interpreter_invocation_count(0); | |
609 mcs->set_interpreter_throwout_count(0); | |
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610 |
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611 #ifdef TIERED |
10107 | 612 mcs->set_rate(0.0F); |
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613 mh->set_prev_event_count(0); |
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614 mh->set_prev_time(0); |
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615 #endif |
10107 | 616 } |
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617 WB_END |
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618 |
20249 | 619 template <typename T> |
620 static bool GetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAt)(const char*, T*)) { | |
621 if (name == NULL) { | |
622 return false; | |
623 } | |
624 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
625 const char* flag_name = env->GetStringUTFChars(name, NULL); | |
626 bool result = (*TAt)(flag_name, value); | |
627 env->ReleaseStringUTFChars(name, flag_name); | |
628 return result; | |
629 } | |
630 | |
631 template <typename T> | |
632 static bool SetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAtPut)(const char*, T*, Flag::Flags)) { | |
633 if (name == NULL) { | |
634 return false; | |
635 } | |
636 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
637 const char* flag_name = env->GetStringUTFChars(name, NULL); | |
638 bool result = (*TAtPut)(flag_name, value, Flag::INTERNAL); | |
639 env->ReleaseStringUTFChars(name, flag_name); | |
640 return result; | |
641 } | |
642 | |
643 template <typename T> | |
644 static jobject box(JavaThread* thread, JNIEnv* env, Symbol* name, Symbol* sig, T value) { | |
645 ResourceMark rm(thread); | |
646 jclass clazz = env->FindClass(name->as_C_string()); | |
647 CHECK_JNI_EXCEPTION_(env, NULL); | |
648 jmethodID methodID = env->GetStaticMethodID(clazz, | |
649 vmSymbols::valueOf_name()->as_C_string(), | |
650 sig->as_C_string()); | |
651 CHECK_JNI_EXCEPTION_(env, NULL); | |
652 jobject result = env->CallStaticObjectMethod(clazz, methodID, value); | |
653 CHECK_JNI_EXCEPTION_(env, NULL); | |
654 return result; | |
655 } | |
656 | |
657 static jobject booleanBox(JavaThread* thread, JNIEnv* env, jboolean value) { | |
658 return box(thread, env, vmSymbols::java_lang_Boolean(), vmSymbols::Boolean_valueOf_signature(), value); | |
659 } | |
660 static jobject integerBox(JavaThread* thread, JNIEnv* env, jint value) { | |
661 return box(thread, env, vmSymbols::java_lang_Integer(), vmSymbols::Integer_valueOf_signature(), value); | |
662 } | |
663 static jobject longBox(JavaThread* thread, JNIEnv* env, jlong value) { | |
664 return box(thread, env, vmSymbols::java_lang_Long(), vmSymbols::Long_valueOf_signature(), value); | |
665 } | |
666 /* static jobject floatBox(JavaThread* thread, JNIEnv* env, jfloat value) { | |
667 return box(thread, env, vmSymbols::java_lang_Float(), vmSymbols::Float_valueOf_signature(), value); | |
668 }*/ | |
669 static jobject doubleBox(JavaThread* thread, JNIEnv* env, jdouble value) { | |
670 return box(thread, env, vmSymbols::java_lang_Double(), vmSymbols::Double_valueOf_signature(), value); | |
671 } | |
672 | |
673 WB_ENTRY(jobject, WB_GetBooleanVMFlag(JNIEnv* env, jobject o, jstring name)) | |
674 bool result; | |
675 if (GetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAt)) { | |
676 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
677 return booleanBox(thread, env, result); | |
678 } | |
679 return NULL; | |
680 WB_END | |
681 | |
682 WB_ENTRY(jobject, WB_GetIntxVMFlag(JNIEnv* env, jobject o, jstring name)) | |
683 intx result; | |
684 if (GetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAt)) { | |
685 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
686 return longBox(thread, env, result); | |
687 } | |
688 return NULL; | |
689 WB_END | |
690 | |
691 WB_ENTRY(jobject, WB_GetUintxVMFlag(JNIEnv* env, jobject o, jstring name)) | |
692 uintx result; | |
693 if (GetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAt)) { | |
694 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
695 return longBox(thread, env, result); | |
696 } | |
697 return NULL; | |
698 WB_END | |
699 | |
700 WB_ENTRY(jobject, WB_GetUint64VMFlag(JNIEnv* env, jobject o, jstring name)) | |
701 uint64_t result; | |
702 if (GetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAt)) { | |
703 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
704 return longBox(thread, env, result); | |
705 } | |
706 return NULL; | |
707 WB_END | |
708 | |
709 WB_ENTRY(jobject, WB_GetDoubleVMFlag(JNIEnv* env, jobject o, jstring name)) | |
710 double result; | |
711 if (GetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAt)) { | |
712 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
713 return doubleBox(thread, env, result); | |
714 } | |
715 return NULL; | |
716 WB_END | |
717 | |
718 WB_ENTRY(jstring, WB_GetStringVMFlag(JNIEnv* env, jobject o, jstring name)) | |
719 ccstr ccstrResult; | |
720 if (GetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAt)) { | |
721 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
722 jstring result = env->NewStringUTF(ccstrResult); | |
723 CHECK_JNI_EXCEPTION_(env, NULL); | |
724 return result; | |
725 } | |
726 return NULL; | |
727 WB_END | |
728 | |
729 WB_ENTRY(void, WB_SetBooleanVMFlag(JNIEnv* env, jobject o, jstring name, jboolean value)) | |
730 bool result = value == JNI_TRUE ? true : false; | |
731 SetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAtPut); | |
732 WB_END | |
733 | |
734 WB_ENTRY(void, WB_SetIntxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
735 intx result = value; | |
736 SetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAtPut); | |
737 WB_END | |
738 | |
739 WB_ENTRY(void, WB_SetUintxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
740 uintx result = value; | |
741 SetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAtPut); | |
742 WB_END | |
743 | |
744 WB_ENTRY(void, WB_SetUint64VMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
745 uint64_t result = value; | |
746 SetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAtPut); | |
747 WB_END | |
748 | |
749 WB_ENTRY(void, WB_SetDoubleVMFlag(JNIEnv* env, jobject o, jstring name, jdouble value)) | |
750 double result = value; | |
751 SetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAtPut); | |
752 WB_END | |
753 | |
754 WB_ENTRY(void, WB_SetStringVMFlag(JNIEnv* env, jobject o, jstring name, jstring value)) | |
755 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
756 const char* ccstrValue = (value == NULL) ? NULL : env->GetStringUTFChars(value, NULL); | |
757 ccstr ccstrResult = ccstrValue; | |
758 bool needFree; | |
759 { | |
760 ThreadInVMfromNative ttvfn(thread); // back to VM | |
761 needFree = SetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAtPut); | |
762 } | |
763 if (value != NULL) { | |
764 env->ReleaseStringUTFChars(value, ccstrValue); | |
765 } | |
766 if (needFree) { | |
767 FREE_C_HEAP_ARRAY(char, ccstrResult, mtInternal); | |
768 } | |
769 WB_END | |
770 | |
771 | |
8850 | 772 WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString)) |
773 ResourceMark rm(THREAD); | |
774 int len; | |
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775 jchar* name = java_lang_String::as_unicode_string(JNIHandles::resolve(javaString), len, CHECK_false); |
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776 return (StringTable::lookup(name, len) != NULL); |
8850 | 777 WB_END |
778 | |
779 WB_ENTRY(void, WB_FullGC(JNIEnv* env, jobject o)) | |
780 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(true); | |
781 Universe::heap()->collect(GCCause::_last_ditch_collection); | |
20451 | 782 #if INCLUDE_ALL_GCS |
783 if (UseG1GC) { | |
784 // Needs to be cleared explicitly for G1 | |
785 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(false); | |
786 } | |
787 #endif // INCLUDE_ALL_GCS | |
8850 | 788 WB_END |
789 | |
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790 WB_ENTRY(void, WB_YoungGC(JNIEnv* env, jobject o)) |
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791 Universe::heap()->collect(GCCause::_wb_young_gc); |
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792 WB_END |
10157 | 793 |
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794 WB_ENTRY(void, WB_ReadReservedMemory(JNIEnv* env, jobject o)) |
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795 // static+volatile in order to force the read to happen |
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796 // (not be eliminated by the compiler) |
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797 static char c; |
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798 static volatile char* p; |
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799 |
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800 p = os::reserve_memory(os::vm_allocation_granularity(), NULL, 0); |
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801 if (p == NULL) { |
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802 THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(), "Failed to reserve memory"); |
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803 } |
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804 |
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805 c = *p; |
10157 | 806 WB_END |
807 | |
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808 WB_ENTRY(jstring, WB_GetCPUFeatures(JNIEnv* env, jobject o)) |
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809 const char* cpu_features = VM_Version::cpu_features(); |
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810 ThreadToNativeFromVM ttn(thread); |
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811 jstring features_string = env->NewStringUTF(cpu_features); |
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812 |
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813 CHECK_JNI_EXCEPTION_(env, NULL); |
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814 |
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815 return features_string; |
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816 WB_END |
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817 |
17817 | 818 |
819 WB_ENTRY(jobjectArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) | |
820 ResourceMark rm(THREAD); | |
821 jmethodID jmid = reflected_method_to_jmid(thread, env, method); | |
822 CHECK_JNI_EXCEPTION_(env, NULL); | |
823 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); | |
824 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); | |
825 jobjectArray result = NULL; | |
826 if (code == NULL) { | |
827 return result; | |
828 } | |
829 int insts_size = code->insts_size(); | |
830 | |
831 ThreadToNativeFromVM ttn(thread); | |
832 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string()); | |
833 CHECK_JNI_EXCEPTION_(env, NULL); | |
834 result = env->NewObjectArray(2, clazz, NULL); | |
835 if (result == NULL) { | |
836 return result; | |
837 } | |
838 | |
20249 | 839 jobject obj = integerBox(thread, env, code->comp_level()); |
17817 | 840 CHECK_JNI_EXCEPTION_(env, NULL); |
841 env->SetObjectArrayElement(result, 0, obj); | |
842 | |
843 jbyteArray insts = env->NewByteArray(insts_size); | |
844 CHECK_JNI_EXCEPTION_(env, NULL); | |
845 env->SetByteArrayRegion(insts, 0, insts_size, (jbyte*) code->insts_begin()); | |
846 env->SetObjectArrayElement(result, 1, insts); | |
847 | |
848 return result; | |
849 WB_END | |
850 | |
851 | |
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852 int WhiteBox::array_bytes_to_length(size_t bytes) { |
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853 return Array<u1>::bytes_to_length(bytes); |
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854 } |
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855 |
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856 WB_ENTRY(jlong, WB_AllocateMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong size)) |
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857 if (size < 0) { |
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858 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
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859 err_msg("WB_AllocateMetaspace: size is negative: " JLONG_FORMAT, size)); |
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860 } |
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861 |
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862 oop class_loader_oop = JNIHandles::resolve(class_loader); |
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863 ClassLoaderData* cld = class_loader_oop != NULL |
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864 ? java_lang_ClassLoader::loader_data(class_loader_oop) |
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865 : ClassLoaderData::the_null_class_loader_data(); |
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866 |
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867 void* metadata = MetadataFactory::new_writeable_array<u1>(cld, WhiteBox::array_bytes_to_length((size_t)size), thread); |
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868 |
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|
869 return (jlong)(uintptr_t)metadata; |
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|
870 WB_END |
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|
871 |
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|
872 WB_ENTRY(void, WB_FreeMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong addr, jlong size)) |
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873 oop class_loader_oop = JNIHandles::resolve(class_loader); |
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|
874 ClassLoaderData* cld = class_loader_oop != NULL |
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|
875 ? java_lang_ClassLoader::loader_data(class_loader_oop) |
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|
876 : ClassLoaderData::the_null_class_loader_data(); |
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|
877 |
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|
878 MetadataFactory::free_array(cld, (Array<u1>*)(uintptr_t)addr); |
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|
879 WB_END |
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|
880 |
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|
881 WB_ENTRY(jlong, WB_IncMetaspaceCapacityUntilGC(JNIEnv* env, jobject wb, jlong inc)) |
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|
882 if (inc < 0) { |
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|
883 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
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|
884 err_msg("WB_IncMetaspaceCapacityUntilGC: inc is negative: " JLONG_FORMAT, inc)); |
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|
885 } |
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|
886 |
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887 jlong max_size_t = (jlong) ((size_t) -1); |
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|
888 if (inc > max_size_t) { |
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|
889 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
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|
890 err_msg("WB_IncMetaspaceCapacityUntilGC: inc does not fit in size_t: " JLONG_FORMAT, inc)); |
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|
891 } |
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|
892 |
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|
893 size_t new_cap_until_GC = 0; |
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|
894 size_t aligned_inc = align_size_down((size_t) inc, Metaspace::commit_alignment()); |
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895 bool success = MetaspaceGC::inc_capacity_until_GC(aligned_inc, &new_cap_until_GC); |
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896 if (!success) { |
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|
897 THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(), |
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|
898 "WB_IncMetaspaceCapacityUntilGC: could not increase capacity until GC " |
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|
899 "due to contention with another thread"); |
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|
900 } |
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|
901 return (jlong) new_cap_until_GC; |
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|
902 WB_END |
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|
903 |
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|
904 WB_ENTRY(jlong, WB_MetaspaceCapacityUntilGC(JNIEnv* env, jobject wb)) |
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|
905 return (jlong) MetaspaceGC::capacity_until_GC(); |
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|
906 WB_END |
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|
907 |
22993
e9a7f132cec3
8068272: Extend WhiteBox API with methods that check monitor state and force safepoint
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|
908 WB_ENTRY(jboolean, WB_IsMonitorInflated(JNIEnv* env, jobject wb, jobject obj)) |
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|
909 oop obj_oop = JNIHandles::resolve(obj); |
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|
910 return (jboolean) obj_oop->mark()->has_monitor(); |
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|
911 WB_END |
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|
912 |
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|
913 WB_ENTRY(void, WB_ForceSafepoint(JNIEnv* env, jobject wb)) |
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|
914 VM_ForceSafepoint force_safepoint_op; |
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|
915 VMThread::execute(&force_safepoint_op); |
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|
916 WB_END |
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|
917 |
5978
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|
918 //Some convenience methods to deal with objects from java |
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|
919 int WhiteBox::offset_for_field(const char* field_name, oop object, |
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|
920 Symbol* signature_symbol) { |
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|
921 assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid"); |
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|
922 Thread* THREAD = Thread::current(); |
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|
923 |
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|
924 //Get the class of our object |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
925 Klass* arg_klass = object->klass(); |
5978
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926 //Turn it into an instance-klass |
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927 InstanceKlass* ik = InstanceKlass::cast(arg_klass); |
5978
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|
928 |
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|
929 //Create symbols to look for in the class |
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|
930 TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name), |
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|
931 THREAD); |
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|
932 |
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|
933 //To be filled in with an offset of the field we're looking for |
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|
934 fieldDescriptor fd; |
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|
935 |
6725
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|
936 Klass* res = ik->find_field(name_symbol, signature_symbol, &fd); |
5978
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|
937 if (res == NULL) { |
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|
938 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), |
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|
939 name_symbol->as_C_string()); |
22984
c97ba20ad404
8072863: Replace fatal() with vm_exit_during_initialization() when an incorrect class is found on the bootclasspath
dbuck
parents:
22977
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|
940 vm_exit_during_initialization("Invalid layout of preloaded class: use -XX:+TraceClassLoading to see the origin of the problem class"); |
5978
51612f0c0a79
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|
941 } |
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|
942 |
51612f0c0a79
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|
943 //fetch the field at the offset we've found |
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|
944 int dest_offset = fd.offset(); |
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|
945 |
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|
946 return dest_offset; |
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5915
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|
947 } |
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diff
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|
948 |
51612f0c0a79
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5915
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|
949 |
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|
950 const char* WhiteBox::lookup_jstring(const char* field_name, oop object) { |
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|
951 int offset = offset_for_field(field_name, object, |
51612f0c0a79
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|
952 vmSymbols::string_signature()); |
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|
953 oop string = object->obj_field(offset); |
6202
5a1f452f8f90
7178703: Fix handling of quoted arguments and better error messages in dcmd
sla
parents:
5978
diff
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|
954 if (string == NULL) { |
5a1f452f8f90
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|
955 return NULL; |
5a1f452f8f90
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|
956 } |
5978
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|
957 const char* ret = java_lang_String::as_utf8_string(string); |
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|
958 return ret; |
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|
959 } |
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|
960 |
51612f0c0a79
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|
961 bool WhiteBox::lookup_bool(const char* field_name, oop object) { |
51612f0c0a79
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5915
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|
962 int offset = |
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|
963 offset_for_field(field_name, object, vmSymbols::bool_signature()); |
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|
964 bool ret = (object->bool_field(offset) == JNI_TRUE); |
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|
965 return ret; |
51612f0c0a79
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|
966 } |
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diff
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|
967 |
20451 | 968 void WhiteBox::register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread, JNINativeMethod* method_array, int method_count) { |
969 ResourceMark rm; | |
970 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
971 | |
972 // one by one registration natives for exception catching | |
973 jclass no_such_method_error_klass = env->FindClass(vmSymbols::java_lang_NoSuchMethodError()->as_C_string()); | |
974 CHECK_JNI_EXCEPTION(env); | |
975 for (int i = 0, n = method_count; i < n; ++i) { | |
976 // Skip dummy entries | |
977 if (method_array[i].fnPtr == NULL) continue; | |
978 if (env->RegisterNatives(wbclass, &method_array[i], 1) != 0) { | |
979 jthrowable throwable_obj = env->ExceptionOccurred(); | |
980 if (throwable_obj != NULL) { | |
981 env->ExceptionClear(); | |
982 if (env->IsInstanceOf(throwable_obj, no_such_method_error_klass)) { | |
983 // NoSuchMethodError is thrown when a method can't be found or a method is not native. | |
984 // Ignoring the exception since it is not preventing use of other WhiteBox methods. | |
985 tty->print_cr("Warning: 'NoSuchMethodError' on register of sun.hotspot.WhiteBox::%s%s", | |
986 method_array[i].name, method_array[i].signature); | |
987 } | |
988 } else { | |
989 // Registration failed unexpectedly. | |
990 tty->print_cr("Warning: unexpected error on register of sun.hotspot.WhiteBox::%s%s. All methods will be unregistered", | |
991 method_array[i].name, method_array[i].signature); | |
992 env->UnregisterNatives(wbclass); | |
993 break; | |
994 } | |
995 } | |
996 } | |
997 } | |
5978
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|
998 |
5915 | 999 #define CC (char*) |
1000 | |
1001 static JNINativeMethod methods[] = { | |
1002 {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.
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20336
diff
changeset
|
1003 {CC"getObjectSize", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectSize }, |
4bfc44ba0d19
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|
1004 {CC"isObjectInOldGen", CC"(Ljava/lang/Object;)Z", (void*)&WB_isObjectInOldGen }, |
5915 | 1005 {CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize }, |
22975
cc5c3ef1f03a
8053995: Add method to WhiteBox to get vm pagesize.
minqi
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20668
diff
changeset
|
1006 {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
|
1007 {CC"getVMLargePageSize", CC"()J", (void*)&WB_GetVMLargePageSize}, |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1008 {CC"isClassAlive0", CC"(Ljava/lang/String;)Z", (void*)&WB_IsClassAlive }, |
20608
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
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parents:
20553
diff
changeset
|
1009 {CC"classKnownToNotExist", |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
parents:
20553
diff
changeset
|
1010 CC"(Ljava/lang/ClassLoader;Ljava/lang/String;)Z",(void*)&WB_ClassKnownToNotExist}, |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
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20553
diff
changeset
|
1011 {CC"getLookupCacheURLs", CC"(Ljava/lang/ClassLoader;)[Ljava/net/URL;", (void*)&WB_GetLookupCacheURLs}, |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
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20553
diff
changeset
|
1012 {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
|
1013 (void*)&WB_GetLookupCacheMatches}, |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1014 {CC"parseCommandLine", |
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1015 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
|
1016 (void*) &WB_ParseCommandLine |
51612f0c0a79
7148488: Whitebox tests for the Diagnostic Framework Parser
nloodin
parents:
5915
diff
changeset
|
1017 }, |
20667
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
parents:
20630
diff
changeset
|
1018 {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
|
1019 (void*)&WB_AddToBootstrapClassLoaderSearch}, |
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
parents:
20630
diff
changeset
|
1020 {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
|
1021 (void*)&WB_AddToSystemClassLoaderSearch}, |
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12118
diff
changeset
|
1022 {CC"getCompressedOopsMaxHeapSize", CC"()J", |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12118
diff
changeset
|
1023 (void*)&WB_GetCompressedOopsMaxHeapSize}, |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10208
diff
changeset
|
1024 {CC"printHeapSizes", CC"()V", (void*)&WB_PrintHeapSizes }, |
13053
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
mgerdin
parents:
12233
diff
changeset
|
1025 {CC"runMemoryUnitTests", CC"()V", (void*)&WB_RunMemoryUnitTests}, |
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
mgerdin
parents:
12233
diff
changeset
|
1026 {CC"readFromNoaccessArea",CC"()V", (void*)&WB_ReadFromNoaccessArea}, |
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
mgerdin
parents:
12233
diff
changeset
|
1027 {CC"stressVirtualSpaceResize",CC"(JJJ)I", (void*)&WB_StressVirtualSpaceResize}, |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
1028 #if INCLUDE_ALL_GCS |
5915 | 1029 {CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark}, |
1030 {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
|
1031 {CC"g1NumMaxRegions", CC"()J", (void*)&WB_G1NumMaxRegions }, |
5915 | 1032 {CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions }, |
1033 {CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize }, | |
23031
e5406a79ae90
8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before
azakharov
parents:
22993
diff
changeset
|
1034 {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
|
1035 (void*)&WB_G1AuxiliaryMemoryUsage }, |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
1036 #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
|
1037 #if INCLUDE_NMT |
9056
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1038 {CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc }, |
20360 | 1039 {CC"NMTMallocWithPseudoStack", CC"(JI)J", (void*)&WB_NMTMallocWithPseudoStack}, |
9056
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1040 {CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree }, |
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1041 {CC"NMTReserveMemory", CC"(J)J", (void*)&WB_NMTReserveMemory }, |
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1042 {CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory }, |
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1043 {CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory }, |
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
ctornqvi
parents:
8850
diff
changeset
|
1044 {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
|
1045 {CC"NMTIsDetailSupported",CC"()Z", (void*)&WB_NMTIsDetailSupported}, |
20553
417e3b8d04c5
8059100: SIGSEGV VirtualMemoryTracker::remove_released_region
coleenp
parents:
20540
diff
changeset
|
1046 {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
|
1047 {CC"NMTGetHashSize", CC"()I", (void*)&WB_NMTGetHashSize }, |
7971
4102b59539ce
8005012: Add WB APIs to better support NMT testing
ctornqvi
parents:
6725
diff
changeset
|
1048 #endif // INCLUDE_NMT |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1049 {CC"deoptimizeAll", CC"()V", (void*)&WB_DeoptimizeAll }, |
12073 | 1050 {CC"deoptimizeMethod", CC"(Ljava/lang/reflect/Executable;Z)I", |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1051 (void*)&WB_DeoptimizeMethod }, |
12073 | 1052 {CC"isMethodCompiled", CC"(Ljava/lang/reflect/Executable;Z)Z", |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1053 (void*)&WB_IsMethodCompiled }, |
12073 | 1054 {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Executable;IZ)Z", |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1055 (void*)&WB_IsMethodCompilable}, |
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1056 {CC"isMethodQueuedForCompilation", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
iignatyev
parents:
9085
diff
changeset
|
1057 CC"(Ljava/lang/reflect/Executable;)Z", (void*)&WB_IsMethodQueuedForCompilation}, |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
iignatyev
parents:
8003
diff
changeset
|
1058 {CC"makeMethodNotCompilable", |
12073 | 1059 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
|
1060 {CC"testSetDontInlineMethod", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
iignatyev
parents:
9085
diff
changeset
|
1061 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
|
1062 {CC"getMethodCompilationLevel", |
12073 | 1063 CC"(Ljava/lang/reflect/Executable;Z)I", (void*)&WB_GetMethodCompilationLevel}, |
1064 {CC"getMethodEntryBci", | |
1065 CC"(Ljava/lang/reflect/Executable;)I", (void*)&WB_GetMethodEntryBci}, | |
1066 {CC"getCompileQueueSize", | |
1067 CC"(I)I", (void*)&WB_GetCompileQueueSize}, | |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8850
diff
changeset
|
1068 {CC"testSetForceInlineMethod", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
iignatyev
parents:
9085
diff
changeset
|
1069 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
|
1070 {CC"enqueueMethodForCompilation", |
12073 | 1071 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
|
1072 {CC"clearMethodState", |
10113
4b2eebe03f93
8011971: WB API doesn't accept j.l.reflect.Constructor
iignatyev
parents:
9085
diff
changeset
|
1073 CC"(Ljava/lang/reflect/Executable;)V", (void*)&WB_ClearMethodState}, |
20249 | 1074 {CC"setBooleanVMFlag", CC"(Ljava/lang/String;Z)V",(void*)&WB_SetBooleanVMFlag}, |
1075 {CC"setIntxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetIntxVMFlag}, | |
1076 {CC"setUintxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUintxVMFlag}, | |
1077 {CC"setUint64VMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUint64VMFlag}, | |
1078 {CC"setDoubleVMFlag", CC"(Ljava/lang/String;D)V",(void*)&WB_SetDoubleVMFlag}, | |
1079 {CC"setStringVMFlag", CC"(Ljava/lang/String;Ljava/lang/String;)V", | |
1080 (void*)&WB_SetStringVMFlag}, | |
1081 {CC"getBooleanVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Boolean;", | |
1082 (void*)&WB_GetBooleanVMFlag}, | |
1083 {CC"getIntxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1084 (void*)&WB_GetIntxVMFlag}, | |
1085 {CC"getUintxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1086 (void*)&WB_GetUintxVMFlag}, | |
1087 {CC"getUint64VMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1088 (void*)&WB_GetUint64VMFlag}, | |
1089 {CC"getDoubleVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Double;", | |
1090 (void*)&WB_GetDoubleVMFlag}, | |
1091 {CC"getStringVMFlag", CC"(Ljava/lang/String;)Ljava/lang/String;", | |
1092 (void*)&WB_GetStringVMFlag}, | |
1093 {CC"isInStringTable", CC"(Ljava/lang/String;)Z", (void*)&WB_IsInStringTable }, | |
8850 | 1094 {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
|
1095 {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
|
1096 {CC"readReservedMemory", CC"()V", (void*)&WB_ReadReservedMemory }, |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
1097 {CC"allocateMetaspace", |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
1098 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
|
1099 {CC"freeMetaspace", |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
1100 CC"(Ljava/lang/ClassLoader;JJ)V", (void*)&WB_FreeMetaspace }, |
20540
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
ehelin
parents:
20465
diff
changeset
|
1101 {CC"incMetaspaceCapacityUntilGC", CC"(J)J", (void*)&WB_IncMetaspaceCapacityUntilGC }, |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
ehelin
parents:
20465
diff
changeset
|
1102 {CC"metaspaceCapacityUntilGC", CC"()J", (void*)&WB_MetaspaceCapacityUntilGC }, |
17778
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
iignatyev
parents:
17704
diff
changeset
|
1103 {CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures }, |
17817 | 1104 {CC"getNMethod", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;", |
1105 (void*)&WB_GetNMethod }, | |
22993
e9a7f132cec3
8068272: Extend WhiteBox API with methods that check monitor state and force safepoint
bmoloden
parents:
22984
diff
changeset
|
1106 {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
|
1107 {CC"forceSafepoint", CC"()V", (void*)&WB_ForceSafepoint }, |
5915 | 1108 }; |
1109 | |
1110 #undef CC | |
1111 | |
1112 JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass)) | |
1113 { | |
1114 if (WhiteBoxAPI) { | |
1115 // Make sure that wbclass is loaded by the null classloader | |
1116 instanceKlassHandle ikh = instanceKlassHandle(JNIHandles::resolve(wbclass)->klass()); | |
1117 Handle loader(ikh->class_loader()); | |
1118 if (loader.is_null()) { | |
20451 | 1119 WhiteBox::register_methods(env, wbclass, thread, methods, sizeof(methods) / sizeof(methods[0])); |
1120 WhiteBox::register_extended(env, wbclass, thread); | |
1121 WhiteBox::set_used(); | |
5915 | 1122 } |
1123 } | |
1124 } | |
1125 JVM_END |