Mercurial > hg > graal-jvmci-8
annotate src/share/vm/prims/whitebox.cpp @ 22977:33e421924c67
8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29
Summary: Allow use of large pages for auxiliary data structures in G1. Clean up existing interfaces.
Reviewed-by: jmasa, pliden, stefank
author | tschatzl |
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date | Tue, 07 Apr 2015 10:53:51 +0200 |
parents | cc5c3ef1f03a |
children | c97ba20ad404 |
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 | |
312 WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o)) | |
313 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
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314 size_t nr = g1->num_free_regions(); |
5915 | 315 return (jlong)nr; |
316 WB_END | |
317 | |
318 WB_ENTRY(jboolean, WB_G1InConcurrentMark(JNIEnv* env, jobject o)) | |
319 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
320 ConcurrentMark* cm = g1->concurrent_mark(); | |
321 return cm->concurrent_marking_in_progress(); | |
322 WB_END | |
323 | |
324 WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o)) | |
325 return (jint)HeapRegion::GrainBytes; | |
326 WB_END | |
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327 #endif // INCLUDE_ALL_GCS |
5915 | 328 |
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329 #if INCLUDE_NMT |
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330 // Alloc memory using the test memory type so that we can use that to see if |
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331 // NMT picks it up correctly |
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332 WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size)) |
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333 jlong addr = 0; |
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334 addr = (jlong)(uintptr_t)os::malloc(size, mtTest); |
20360 | 335 return addr; |
336 WB_END | |
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337 |
20360 | 338 // Alloc memory with pseudo call stack. The test can create psudo malloc |
339 // allocation site to stress the malloc tracking. | |
340 WB_ENTRY(jlong, WB_NMTMallocWithPseudoStack(JNIEnv* env, jobject o, jlong size, jint pseudo_stack)) | |
341 address pc = (address)(size_t)pseudo_stack; | |
342 NativeCallStack stack(&pc, 1); | |
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343 return (jlong)(uintptr_t)os::malloc(size, mtTest, stack); |
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344 WB_END |
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345 |
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346 // Free the memory allocated by NMTAllocTest |
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347 WB_ENTRY(void, WB_NMTFree(JNIEnv* env, jobject o, jlong mem)) |
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348 os::free((void*)(uintptr_t)mem, mtTest); |
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349 WB_END |
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350 |
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351 WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size)) |
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352 jlong addr = 0; |
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353 |
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354 addr = (jlong)(uintptr_t)os::reserve_memory(size); |
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355 MemTracker::record_virtual_memory_type((address)addr, mtTest); |
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356 |
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357 return addr; |
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358 WB_END |
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359 |
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360 |
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361 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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362 os::commit_memory((char *)(uintptr_t)addr, size, !ExecMem); |
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363 MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest); |
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364 WB_END |
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365 |
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366 WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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367 os::uncommit_memory((char *)(uintptr_t)addr, size); |
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368 WB_END |
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369 |
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370 WB_ENTRY(void, WB_NMTReleaseMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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371 os::release_memory((char *)(uintptr_t)addr, size); |
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372 WB_END |
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373 |
20360 | 374 WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env)) |
375 return MemTracker::tracking_level() == NMT_detail; | |
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376 WB_END |
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377 |
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378 WB_ENTRY(jboolean, WB_NMTChangeTrackingLevel(JNIEnv* env)) |
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379 // Test that we can downgrade NMT levels but not upgrade them. |
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380 if (MemTracker::tracking_level() == NMT_off) { |
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381 MemTracker::transition_to(NMT_off); |
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382 return MemTracker::tracking_level() == NMT_off; |
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383 } else { |
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384 assert(MemTracker::tracking_level() == NMT_detail, "Should start out as detail tracking"); |
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385 MemTracker::transition_to(NMT_summary); |
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386 assert(MemTracker::tracking_level() == NMT_summary, "Should be summary now"); |
20360 | 387 |
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388 // Can't go to detail once NMT is set to summary. |
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389 MemTracker::transition_to(NMT_detail); |
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390 assert(MemTracker::tracking_level() == NMT_summary, "Should still be summary now"); |
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391 |
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392 // Shutdown sets tracking level to minimal. |
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393 MemTracker::shutdown(); |
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394 assert(MemTracker::tracking_level() == NMT_minimal, "Should be minimal now"); |
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395 |
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396 // Once the tracking level is minimal, we cannot increase to summary. |
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397 // The code ignores this request instead of asserting because if the malloc site |
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398 // table overflows in another thread, it tries to change the code to summary. |
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399 MemTracker::transition_to(NMT_summary); |
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400 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); |
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401 |
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402 // Really can never go up to detail, verify that the code would never do this. |
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403 MemTracker::transition_to(NMT_detail); |
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404 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); |
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405 return MemTracker::tracking_level() == NMT_minimal; |
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406 } |
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407 WB_END |
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408 |
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409 WB_ENTRY(jint, WB_NMTGetHashSize(JNIEnv* env, jobject o)) |
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410 int hash_size = MallocSiteTable::hash_buckets(); |
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411 assert(hash_size > 0, "NMT hash_size should be > 0"); |
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412 return (jint)hash_size; |
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413 WB_END |
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414 #endif // INCLUDE_NMT |
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415 |
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416 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) { |
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417 assert(method != NULL, "method should not be null"); |
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418 ThreadToNativeFromVM ttn(thread); |
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419 return env->FromReflectedMethod(method); |
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420 } |
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421 |
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422 WB_ENTRY(void, WB_DeoptimizeAll(JNIEnv* env, jobject o)) |
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423 MutexLockerEx mu(Compile_lock); |
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424 CodeCache::mark_all_nmethods_for_deoptimization(); |
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425 VM_Deoptimize op; |
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426 VMThread::execute(&op); |
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427 WB_END |
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428 |
12073 | 429 WB_ENTRY(jint, WB_DeoptimizeMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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430 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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431 int result = 0; |
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432 CHECK_JNI_EXCEPTION_(env, result); |
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433 MutexLockerEx mu(Compile_lock); |
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434 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 435 if (is_osr) { |
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436 result += mh->mark_osr_nmethods(); |
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437 } else if (mh->code() != NULL) { |
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438 mh->code()->mark_for_deoptimization(); |
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439 ++result; |
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440 } |
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441 result += CodeCache::mark_for_deoptimization(mh()); |
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442 if (result > 0) { |
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443 VM_Deoptimize op; |
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444 VMThread::execute(&op); |
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445 } |
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446 return result; |
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447 WB_END |
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448 |
12073 | 449 WB_ENTRY(jboolean, WB_IsMethodCompiled(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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450 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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451 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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452 MutexLockerEx mu(Compile_lock); |
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453 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 454 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); |
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455 if (code == NULL) { |
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456 return JNI_FALSE; |
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457 } |
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458 return (code->is_alive() && !code->is_marked_for_deoptimization()); |
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459 WB_END |
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460 |
12073 | 461 WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) |
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462 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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463 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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464 MutexLockerEx mu(Compile_lock); |
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465 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 466 if (is_osr) { |
467 return CompilationPolicy::can_be_osr_compiled(mh, comp_level); | |
468 } else { | |
469 return CompilationPolicy::can_be_compiled(mh, comp_level); | |
470 } | |
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471 WB_END |
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472 |
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473 WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method)) |
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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)); |
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478 return mh->queued_for_compilation(); |
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479 WB_END |
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480 |
12073 | 481 WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) |
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482 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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483 CHECK_JNI_EXCEPTION_(env, CompLevel_none); |
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484 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 485 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); |
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486 return (code != NULL ? code->comp_level() : CompLevel_none); |
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487 WB_END |
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488 |
12073 | 489 WB_ENTRY(void, WB_MakeMethodNotCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) |
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490 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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491 CHECK_JNI_EXCEPTION(env); |
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492 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 493 if (is_osr) { |
494 mh->set_not_osr_compilable(comp_level, true /* report */, "WhiteBox"); | |
495 } else { | |
496 mh->set_not_compilable(comp_level, true /* report */, "WhiteBox"); | |
497 } | |
498 WB_END | |
499 | |
500 WB_ENTRY(jint, WB_GetMethodEntryBci(JNIEnv* env, jobject o, jobject method)) | |
501 jmethodID jmid = reflected_method_to_jmid(thread, env, method); | |
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502 CHECK_JNI_EXCEPTION_(env, InvocationEntryBci); |
12073 | 503 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
504 nmethod* code = mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false); | |
505 return (code != NULL && code->is_osr_method() ? code->osr_entry_bci() : InvocationEntryBci); | |
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506 WB_END |
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507 |
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508 WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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509 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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510 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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511 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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512 bool result = mh->dont_inline(); |
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513 mh->set_dont_inline(value == JNI_TRUE); |
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514 return result; |
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515 WB_END |
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516 |
12073 | 517 WB_ENTRY(jint, WB_GetCompileQueueSize(JNIEnv* env, jobject o, jint comp_level)) |
518 if (comp_level == CompLevel_any) { | |
519 return CompileBroker::queue_size(CompLevel_full_optimization) /* C2 */ + | |
520 CompileBroker::queue_size(CompLevel_full_profile) /* C1 */; | |
521 } else { | |
522 return CompileBroker::queue_size(comp_level); | |
523 } | |
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524 WB_END |
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525 |
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526 WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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527 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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528 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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529 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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530 bool result = mh->force_inline(); |
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531 mh->set_force_inline(value == JNI_TRUE); |
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532 return result; |
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533 WB_END |
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534 |
12073 | 535 WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level, jint bci)) |
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536 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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537 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); |
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538 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
12073 | 539 nmethod* nm = CompileBroker::compile_method(mh, bci, comp_level, mh, mh->invocation_count(), "WhiteBox", THREAD); |
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540 MutexLockerEx mu(Compile_lock); |
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541 return (mh->queued_for_compilation() || nm != NULL); |
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542 WB_END |
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543 |
17867 | 544 class VM_WhiteBoxOperation : public VM_Operation { |
545 public: | |
546 VM_WhiteBoxOperation() { } | |
547 VMOp_Type type() const { return VMOp_WhiteBoxOperation; } | |
548 bool allow_nested_vm_operations() const { return true; } | |
549 }; | |
550 | |
551 class AlwaysFalseClosure : public BoolObjectClosure { | |
552 public: | |
553 bool do_object_b(oop p) { return false; } | |
554 }; | |
555 | |
556 static AlwaysFalseClosure always_false; | |
557 | |
558 class VM_WhiteBoxCleanMethodData : public VM_WhiteBoxOperation { | |
559 public: | |
560 VM_WhiteBoxCleanMethodData(MethodData* mdo) : _mdo(mdo) { } | |
561 void doit() { | |
562 _mdo->clean_method_data(&always_false); | |
563 } | |
564 private: | |
565 MethodData* _mdo; | |
566 }; | |
567 | |
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568 WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method)) |
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569 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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570 CHECK_JNI_EXCEPTION(env); |
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571 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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572 MutexLockerEx mu(Compile_lock); |
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573 MethodData* mdo = mh->method_data(); |
10107 | 574 MethodCounters* mcs = mh->method_counters(); |
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575 |
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576 if (mdo != NULL) { |
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577 mdo->init(); |
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578 ResourceMark rm; |
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579 int arg_count = mdo->method()->size_of_parameters(); |
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580 for (int i = 0; i < arg_count; i++) { |
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581 mdo->set_arg_modified(i, 0); |
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582 } |
17867 | 583 VM_WhiteBoxCleanMethodData op(mdo); |
584 VMThread::execute(&op); | |
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585 } |
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586 |
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587 mh->clear_not_c1_compilable(); |
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588 mh->clear_not_c2_compilable(); |
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589 mh->clear_not_c2_osr_compilable(); |
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590 NOT_PRODUCT(mh->set_compiled_invocation_count(0)); |
10107 | 591 if (mcs != NULL) { |
592 mcs->backedge_counter()->init(); | |
593 mcs->invocation_counter()->init(); | |
594 mcs->set_interpreter_invocation_count(0); | |
595 mcs->set_interpreter_throwout_count(0); | |
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596 |
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597 #ifdef TIERED |
10107 | 598 mcs->set_rate(0.0F); |
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599 mh->set_prev_event_count(0); |
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600 mh->set_prev_time(0); |
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601 #endif |
10107 | 602 } |
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603 WB_END |
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604 |
20249 | 605 template <typename T> |
606 static bool GetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAt)(const char*, T*)) { | |
607 if (name == NULL) { | |
608 return false; | |
609 } | |
610 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
611 const char* flag_name = env->GetStringUTFChars(name, NULL); | |
612 bool result = (*TAt)(flag_name, value); | |
613 env->ReleaseStringUTFChars(name, flag_name); | |
614 return result; | |
615 } | |
616 | |
617 template <typename T> | |
618 static bool SetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAtPut)(const char*, T*, Flag::Flags)) { | |
619 if (name == NULL) { | |
620 return false; | |
621 } | |
622 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
623 const char* flag_name = env->GetStringUTFChars(name, NULL); | |
624 bool result = (*TAtPut)(flag_name, value, Flag::INTERNAL); | |
625 env->ReleaseStringUTFChars(name, flag_name); | |
626 return result; | |
627 } | |
628 | |
629 template <typename T> | |
630 static jobject box(JavaThread* thread, JNIEnv* env, Symbol* name, Symbol* sig, T value) { | |
631 ResourceMark rm(thread); | |
632 jclass clazz = env->FindClass(name->as_C_string()); | |
633 CHECK_JNI_EXCEPTION_(env, NULL); | |
634 jmethodID methodID = env->GetStaticMethodID(clazz, | |
635 vmSymbols::valueOf_name()->as_C_string(), | |
636 sig->as_C_string()); | |
637 CHECK_JNI_EXCEPTION_(env, NULL); | |
638 jobject result = env->CallStaticObjectMethod(clazz, methodID, value); | |
639 CHECK_JNI_EXCEPTION_(env, NULL); | |
640 return result; | |
641 } | |
642 | |
643 static jobject booleanBox(JavaThread* thread, JNIEnv* env, jboolean value) { | |
644 return box(thread, env, vmSymbols::java_lang_Boolean(), vmSymbols::Boolean_valueOf_signature(), value); | |
645 } | |
646 static jobject integerBox(JavaThread* thread, JNIEnv* env, jint value) { | |
647 return box(thread, env, vmSymbols::java_lang_Integer(), vmSymbols::Integer_valueOf_signature(), value); | |
648 } | |
649 static jobject longBox(JavaThread* thread, JNIEnv* env, jlong value) { | |
650 return box(thread, env, vmSymbols::java_lang_Long(), vmSymbols::Long_valueOf_signature(), value); | |
651 } | |
652 /* static jobject floatBox(JavaThread* thread, JNIEnv* env, jfloat value) { | |
653 return box(thread, env, vmSymbols::java_lang_Float(), vmSymbols::Float_valueOf_signature(), value); | |
654 }*/ | |
655 static jobject doubleBox(JavaThread* thread, JNIEnv* env, jdouble value) { | |
656 return box(thread, env, vmSymbols::java_lang_Double(), vmSymbols::Double_valueOf_signature(), value); | |
657 } | |
658 | |
659 WB_ENTRY(jobject, WB_GetBooleanVMFlag(JNIEnv* env, jobject o, jstring name)) | |
660 bool result; | |
661 if (GetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAt)) { | |
662 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
663 return booleanBox(thread, env, result); | |
664 } | |
665 return NULL; | |
666 WB_END | |
667 | |
668 WB_ENTRY(jobject, WB_GetIntxVMFlag(JNIEnv* env, jobject o, jstring name)) | |
669 intx result; | |
670 if (GetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAt)) { | |
671 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
672 return longBox(thread, env, result); | |
673 } | |
674 return NULL; | |
675 WB_END | |
676 | |
677 WB_ENTRY(jobject, WB_GetUintxVMFlag(JNIEnv* env, jobject o, jstring name)) | |
678 uintx result; | |
679 if (GetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAt)) { | |
680 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
681 return longBox(thread, env, result); | |
682 } | |
683 return NULL; | |
684 WB_END | |
685 | |
686 WB_ENTRY(jobject, WB_GetUint64VMFlag(JNIEnv* env, jobject o, jstring name)) | |
687 uint64_t result; | |
688 if (GetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAt)) { | |
689 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
690 return longBox(thread, env, result); | |
691 } | |
692 return NULL; | |
693 WB_END | |
694 | |
695 WB_ENTRY(jobject, WB_GetDoubleVMFlag(JNIEnv* env, jobject o, jstring name)) | |
696 double result; | |
697 if (GetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAt)) { | |
698 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
699 return doubleBox(thread, env, result); | |
700 } | |
701 return NULL; | |
702 WB_END | |
703 | |
704 WB_ENTRY(jstring, WB_GetStringVMFlag(JNIEnv* env, jobject o, jstring name)) | |
705 ccstr ccstrResult; | |
706 if (GetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAt)) { | |
707 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
708 jstring result = env->NewStringUTF(ccstrResult); | |
709 CHECK_JNI_EXCEPTION_(env, NULL); | |
710 return result; | |
711 } | |
712 return NULL; | |
713 WB_END | |
714 | |
715 WB_ENTRY(void, WB_SetBooleanVMFlag(JNIEnv* env, jobject o, jstring name, jboolean value)) | |
716 bool result = value == JNI_TRUE ? true : false; | |
717 SetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAtPut); | |
718 WB_END | |
719 | |
720 WB_ENTRY(void, WB_SetIntxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
721 intx result = value; | |
722 SetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAtPut); | |
723 WB_END | |
724 | |
725 WB_ENTRY(void, WB_SetUintxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
726 uintx result = value; | |
727 SetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAtPut); | |
728 WB_END | |
729 | |
730 WB_ENTRY(void, WB_SetUint64VMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) | |
731 uint64_t result = value; | |
732 SetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAtPut); | |
733 WB_END | |
734 | |
735 WB_ENTRY(void, WB_SetDoubleVMFlag(JNIEnv* env, jobject o, jstring name, jdouble value)) | |
736 double result = value; | |
737 SetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAtPut); | |
738 WB_END | |
739 | |
740 WB_ENTRY(void, WB_SetStringVMFlag(JNIEnv* env, jobject o, jstring name, jstring value)) | |
741 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
742 const char* ccstrValue = (value == NULL) ? NULL : env->GetStringUTFChars(value, NULL); | |
743 ccstr ccstrResult = ccstrValue; | |
744 bool needFree; | |
745 { | |
746 ThreadInVMfromNative ttvfn(thread); // back to VM | |
747 needFree = SetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAtPut); | |
748 } | |
749 if (value != NULL) { | |
750 env->ReleaseStringUTFChars(value, ccstrValue); | |
751 } | |
752 if (needFree) { | |
753 FREE_C_HEAP_ARRAY(char, ccstrResult, mtInternal); | |
754 } | |
755 WB_END | |
756 | |
757 | |
8850 | 758 WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString)) |
759 ResourceMark rm(THREAD); | |
760 int len; | |
10155
f258c5828eb8
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761 jchar* name = java_lang_String::as_unicode_string(JNIHandles::resolve(javaString), len, CHECK_false); |
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8011773: Some tests on Interned String crashed JVM with OOM
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762 return (StringTable::lookup(name, len) != NULL); |
8850 | 763 WB_END |
764 | |
765 WB_ENTRY(void, WB_FullGC(JNIEnv* env, jobject o)) | |
766 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(true); | |
767 Universe::heap()->collect(GCCause::_last_ditch_collection); | |
20451 | 768 #if INCLUDE_ALL_GCS |
769 if (UseG1GC) { | |
770 // Needs to be cleared explicitly for G1 | |
771 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(false); | |
772 } | |
773 #endif // INCLUDE_ALL_GCS | |
8850 | 774 WB_END |
775 | |
20357
4bfc44ba0d19
8055098: WB API should be extended to provide information about size and age of object.
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diff
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|
776 WB_ENTRY(void, WB_YoungGC(JNIEnv* env, jobject o)) |
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8055098: WB API should be extended to provide information about size and age of object.
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diff
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|
777 Universe::heap()->collect(GCCause::_wb_young_gc); |
4bfc44ba0d19
8055098: WB API should be extended to provide information about size and age of object.
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|
778 WB_END |
10157 | 779 |
10341
f54c85acc043
8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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diff
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|
780 WB_ENTRY(void, WB_ReadReservedMemory(JNIEnv* env, jobject o)) |
f54c85acc043
8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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|
781 // static+volatile in order to force the read to happen |
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diff
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|
782 // (not be eliminated by the compiler) |
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|
783 static char c; |
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diff
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|
784 static volatile char* p; |
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8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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diff
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|
785 |
f54c85acc043
8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
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diff
changeset
|
786 p = os::reserve_memory(os::vm_allocation_granularity(), NULL, 0); |
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|
787 if (p == NULL) { |
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diff
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|
788 THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(), "Failed to reserve memory"); |
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diff
changeset
|
789 } |
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diff
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|
790 |
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diff
changeset
|
791 c = *p; |
10157 | 792 WB_END |
793 | |
17778
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
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17704
diff
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|
794 WB_ENTRY(jstring, WB_GetCPUFeatures(JNIEnv* env, jobject o)) |
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
iignatyev
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diff
changeset
|
795 const char* cpu_features = VM_Version::cpu_features(); |
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
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diff
changeset
|
796 ThreadToNativeFromVM ttn(thread); |
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
iignatyev
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17704
diff
changeset
|
797 jstring features_string = env->NewStringUTF(cpu_features); |
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8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
iignatyev
parents:
17704
diff
changeset
|
798 |
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
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parents:
17704
diff
changeset
|
799 CHECK_JNI_EXCEPTION_(env, NULL); |
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
iignatyev
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diff
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|
800 |
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8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
iignatyev
parents:
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diff
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|
801 return features_string; |
a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
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|
802 WB_END |
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|
803 |
17817 | 804 |
805 WB_ENTRY(jobjectArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) | |
806 ResourceMark rm(THREAD); | |
807 jmethodID jmid = reflected_method_to_jmid(thread, env, method); | |
808 CHECK_JNI_EXCEPTION_(env, NULL); | |
809 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); | |
810 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); | |
811 jobjectArray result = NULL; | |
812 if (code == NULL) { | |
813 return result; | |
814 } | |
815 int insts_size = code->insts_size(); | |
816 | |
817 ThreadToNativeFromVM ttn(thread); | |
818 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string()); | |
819 CHECK_JNI_EXCEPTION_(env, NULL); | |
820 result = env->NewObjectArray(2, clazz, NULL); | |
821 if (result == NULL) { | |
822 return result; | |
823 } | |
824 | |
20249 | 825 jobject obj = integerBox(thread, env, code->comp_level()); |
17817 | 826 CHECK_JNI_EXCEPTION_(env, NULL); |
827 env->SetObjectArrayElement(result, 0, obj); | |
828 | |
829 jbyteArray insts = env->NewByteArray(insts_size); | |
830 CHECK_JNI_EXCEPTION_(env, NULL); | |
831 env->SetByteArrayRegion(insts, 0, insts_size, (jbyte*) code->insts_begin()); | |
832 env->SetObjectArrayElement(result, 1, insts); | |
833 | |
834 return result; | |
835 WB_END | |
836 | |
837 | |
20278
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diff
changeset
|
838 int WhiteBox::array_bytes_to_length(size_t bytes) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
839 return Array<u1>::bytes_to_length(bytes); |
2c6ef90f030a
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|
840 } |
2c6ef90f030a
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diff
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|
841 |
2c6ef90f030a
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changeset
|
842 WB_ENTRY(jlong, WB_AllocateMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong size)) |
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843 if (size < 0) { |
2c6ef90f030a
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|
844 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
845 err_msg("WB_AllocateMetaspace: size is negative: " JLONG_FORMAT, size)); |
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8049421: G1 Class Unloading after completing a concurrent mark cycle
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20249
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|
846 } |
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|
847 |
2c6ef90f030a
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|
848 oop class_loader_oop = JNIHandles::resolve(class_loader); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
849 ClassLoaderData* cld = class_loader_oop != NULL |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
850 ? java_lang_ClassLoader::loader_data(class_loader_oop) |
2c6ef90f030a
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diff
changeset
|
851 : ClassLoaderData::the_null_class_loader_data(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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20249
diff
changeset
|
852 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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20249
diff
changeset
|
853 void* metadata = MetadataFactory::new_writeable_array<u1>(cld, WhiteBox::array_bytes_to_length((size_t)size), thread); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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20249
diff
changeset
|
854 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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20249
diff
changeset
|
855 return (jlong)(uintptr_t)metadata; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20249
diff
changeset
|
856 WB_END |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
857 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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20249
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changeset
|
858 WB_ENTRY(void, WB_FreeMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong addr, jlong size)) |
2c6ef90f030a
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|
859 oop class_loader_oop = JNIHandles::resolve(class_loader); |
2c6ef90f030a
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20249
diff
changeset
|
860 ClassLoaderData* cld = class_loader_oop != NULL |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20249
diff
changeset
|
861 ? java_lang_ClassLoader::loader_data(class_loader_oop) |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
862 : ClassLoaderData::the_null_class_loader_data(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
863 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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changeset
|
864 MetadataFactory::free_array(cld, (Array<u1>*)(uintptr_t)addr); |
2c6ef90f030a
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stefank
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diff
changeset
|
865 WB_END |
2c6ef90f030a
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20249
diff
changeset
|
866 |
20540
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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diff
changeset
|
867 WB_ENTRY(jlong, WB_IncMetaspaceCapacityUntilGC(JNIEnv* env, jobject wb, jlong inc)) |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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|
868 if (inc < 0) { |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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diff
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|
869 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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diff
changeset
|
870 err_msg("WB_IncMetaspaceCapacityUntilGC: inc is negative: " JLONG_FORMAT, inc)); |
b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
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diff
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|
871 } |
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872 |
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873 jlong max_size_t = (jlong) ((size_t) -1); |
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874 if (inc > max_size_t) { |
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875 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), |
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876 err_msg("WB_IncMetaspaceCapacityUntilGC: inc does not fit in size_t: " JLONG_FORMAT, inc)); |
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|
877 } |
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|
878 |
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|
879 size_t new_cap_until_GC = 0; |
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880 size_t aligned_inc = align_size_down((size_t) inc, Metaspace::commit_alignment()); |
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881 bool success = MetaspaceGC::inc_capacity_until_GC(aligned_inc, &new_cap_until_GC); |
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882 if (!success) { |
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883 THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(), |
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884 "WB_IncMetaspaceCapacityUntilGC: could not increase capacity until GC " |
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|
885 "due to contention with another thread"); |
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|
886 } |
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887 return (jlong) new_cap_until_GC; |
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|
888 WB_END |
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|
889 |
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890 WB_ENTRY(jlong, WB_MetaspaceCapacityUntilGC(JNIEnv* env, jobject wb)) |
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891 return (jlong) MetaspaceGC::capacity_until_GC(); |
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892 WB_END |
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|
893 |
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894 //Some convenience methods to deal with objects from java |
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895 int WhiteBox::offset_for_field(const char* field_name, oop object, |
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896 Symbol* signature_symbol) { |
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897 assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid"); |
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898 Thread* THREAD = Thread::current(); |
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|
899 |
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|
900 //Get the class of our object |
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901 Klass* arg_klass = object->klass(); |
5978
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902 //Turn it into an instance-klass |
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903 InstanceKlass* ik = InstanceKlass::cast(arg_klass); |
5978
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904 |
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|
905 //Create symbols to look for in the class |
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906 TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name), |
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|
907 THREAD); |
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|
908 |
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|
909 //To be filled in with an offset of the field we're looking for |
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|
910 fieldDescriptor fd; |
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|
911 |
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912 Klass* res = ik->find_field(name_symbol, signature_symbol, &fd); |
5978
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913 if (res == NULL) { |
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914 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), |
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915 name_symbol->as_C_string()); |
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|
916 fatal("Invalid layout of preloaded class"); |
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|
917 } |
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|
918 |
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|
919 //fetch the field at the offset we've found |
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|
920 int dest_offset = fd.offset(); |
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|
921 |
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|
922 return dest_offset; |
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|
923 } |
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|
924 |
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|
925 |
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|
926 const char* WhiteBox::lookup_jstring(const char* field_name, oop object) { |
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927 int offset = offset_for_field(field_name, object, |
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|
928 vmSymbols::string_signature()); |
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|
929 oop string = object->obj_field(offset); |
6202
5a1f452f8f90
7178703: Fix handling of quoted arguments and better error messages in dcmd
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|
930 if (string == NULL) { |
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|
931 return NULL; |
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|
932 } |
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|
933 const char* ret = java_lang_String::as_utf8_string(string); |
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|
934 return ret; |
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5915
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|
935 } |
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|
936 |
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|
937 bool WhiteBox::lookup_bool(const char* field_name, oop object) { |
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|
938 int offset = |
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|
939 offset_for_field(field_name, object, vmSymbols::bool_signature()); |
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940 bool ret = (object->bool_field(offset) == JNI_TRUE); |
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|
941 return ret; |
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|
942 } |
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|
943 |
20451 | 944 void WhiteBox::register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread, JNINativeMethod* method_array, int method_count) { |
945 ResourceMark rm; | |
946 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
947 | |
948 // one by one registration natives for exception catching | |
949 jclass no_such_method_error_klass = env->FindClass(vmSymbols::java_lang_NoSuchMethodError()->as_C_string()); | |
950 CHECK_JNI_EXCEPTION(env); | |
951 for (int i = 0, n = method_count; i < n; ++i) { | |
952 // Skip dummy entries | |
953 if (method_array[i].fnPtr == NULL) continue; | |
954 if (env->RegisterNatives(wbclass, &method_array[i], 1) != 0) { | |
955 jthrowable throwable_obj = env->ExceptionOccurred(); | |
956 if (throwable_obj != NULL) { | |
957 env->ExceptionClear(); | |
958 if (env->IsInstanceOf(throwable_obj, no_such_method_error_klass)) { | |
959 // NoSuchMethodError is thrown when a method can't be found or a method is not native. | |
960 // Ignoring the exception since it is not preventing use of other WhiteBox methods. | |
961 tty->print_cr("Warning: 'NoSuchMethodError' on register of sun.hotspot.WhiteBox::%s%s", | |
962 method_array[i].name, method_array[i].signature); | |
963 } | |
964 } else { | |
965 // Registration failed unexpectedly. | |
966 tty->print_cr("Warning: unexpected error on register of sun.hotspot.WhiteBox::%s%s. All methods will be unregistered", | |
967 method_array[i].name, method_array[i].signature); | |
968 env->UnregisterNatives(wbclass); | |
969 break; | |
970 } | |
971 } | |
972 } | |
973 } | |
5978
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|
974 |
5915 | 975 #define CC (char*) |
976 | |
977 static JNINativeMethod methods[] = { | |
978 {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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|
979 {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.
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|
980 {CC"isObjectInOldGen", CC"(Ljava/lang/Object;)Z", (void*)&WB_isObjectInOldGen }, |
5915 | 981 {CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize }, |
22975
cc5c3ef1f03a
8053995: Add method to WhiteBox to get vm pagesize.
minqi
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diff
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|
982 {CC"getVMPageSize", CC"()I", (void*)&WB_GetVMPageSize }, |
22977
33e421924c67
8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29
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diff
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|
983 {CC"getVMLargePageSize", CC"()J", (void*)&WB_GetVMLargePageSize}, |
8051
12e01444ca2d
8006683: Add WhiteBox API to testing of compiler
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diff
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|
984 {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
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|
985 {CC"classKnownToNotExist", |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
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diff
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|
986 CC"(Ljava/lang/ClassLoader;Ljava/lang/String;)Z",(void*)&WB_ClassKnownToNotExist}, |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
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diff
changeset
|
987 {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
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|
988 {CC"getLookupCacheMatches", CC"(Ljava/lang/ClassLoader;Ljava/lang/String;)[I", |
4cb90023bf2b
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diff
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|
989 (void*)&WB_GetLookupCacheMatches}, |
8051
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8006683: Add WhiteBox API to testing of compiler
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|
990 {CC"parseCommandLine", |
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|
991 CC"(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;", |
5978
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|
992 (void*) &WB_ParseCommandLine |
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|
993 }, |
20667
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
parents:
20630
diff
changeset
|
994 {CC"addToBootstrapClassLoaderSearch", CC"(Ljava/lang/String;)V", |
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
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20630
diff
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|
995 (void*)&WB_AddToBootstrapClassLoaderSearch}, |
887a7cedb892
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
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20630
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|
996 {CC"addToSystemClassLoaderSearch", CC"(Ljava/lang/String;)V", |
887a7cedb892
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|
997 (void*)&WB_AddToSystemClassLoaderSearch}, |
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
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12118
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|
998 {CC"getCompressedOopsMaxHeapSize", CC"()J", |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
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|
999 (void*)&WB_GetCompressedOopsMaxHeapSize}, |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
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10208
diff
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|
1000 {CC"printHeapSizes", CC"()V", (void*)&WB_PrintHeapSizes }, |
13053
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
mgerdin
parents:
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diff
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|
1001 {CC"runMemoryUnitTests", CC"()V", (void*)&WB_RunMemoryUnitTests}, |
9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
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|
1002 {CC"readFromNoaccessArea",CC"()V", (void*)&WB_ReadFromNoaccessArea}, |
9d8b29a0548c
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mgerdin
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diff
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|
1003 {CC"stressVirtualSpaceResize",CC"(JJJ)I", (void*)&WB_StressVirtualSpaceResize}, |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
1004 #if INCLUDE_ALL_GCS |
5915 | 1005 {CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark}, |
1006 {CC"g1IsHumongous", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous }, | |
1007 {CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions }, | |
1008 {CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize }, | |
8001
db9981fd3124
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6725
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|
1009 #endif // INCLUDE_ALL_GCS |
12118
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
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12073
diff
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|
1010 #if INCLUDE_NMT |
9056
3b890cd4da64
8009125: Add NMT tests for Virtual Memory operations
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parents:
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diff
changeset
|
1011 {CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc }, |
20360 | 1012 {CC"NMTMallocWithPseudoStack", CC"(JI)J", (void*)&WB_NMTMallocWithPseudoStack}, |
9056
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changeset
|
1013 {CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree }, |
3b890cd4da64
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diff
changeset
|
1014 {CC"NMTReserveMemory", CC"(J)J", (void*)&WB_NMTReserveMemory }, |
3b890cd4da64
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ctornqvi
parents:
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diff
changeset
|
1015 {CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory }, |
3b890cd4da64
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ctornqvi
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diff
changeset
|
1016 {CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory }, |
3b890cd4da64
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|
1017 {CC"NMTReleaseMemory", CC"(JJ)V", (void*)&WB_NMTReleaseMemory }, |
12118
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8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
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changeset
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1018 {CC"NMTIsDetailSupported",CC"()Z", (void*)&WB_NMTIsDetailSupported}, |
20553
417e3b8d04c5
8059100: SIGSEGV VirtualMemoryTracker::remove_released_region
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20540
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1019 {CC"NMTChangeTrackingLevel", CC"()Z", (void*)&WB_NMTChangeTrackingLevel}, |
20628
80260967f994
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gtriantafill
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1020 {CC"NMTGetHashSize", CC"()I", (void*)&WB_NMTGetHashSize }, |
7971
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1021 #endif // INCLUDE_NMT |
8051
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1022 {CC"deoptimizeAll", CC"()V", (void*)&WB_DeoptimizeAll }, |
12073 | 1023 {CC"deoptimizeMethod", CC"(Ljava/lang/reflect/Executable;Z)I", |
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1024 (void*)&WB_DeoptimizeMethod }, |
12073 | 1025 {CC"isMethodCompiled", CC"(Ljava/lang/reflect/Executable;Z)Z", |
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1026 (void*)&WB_IsMethodCompiled }, |
12073 | 1027 {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Executable;IZ)Z", |
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1028 (void*)&WB_IsMethodCompilable}, |
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1029 {CC"isMethodQueuedForCompilation", |
10113
4b2eebe03f93
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9085
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1030 CC"(Ljava/lang/reflect/Executable;)Z", (void*)&WB_IsMethodQueuedForCompilation}, |
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diff
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|
1031 {CC"makeMethodNotCompilable", |
12073 | 1032 CC"(Ljava/lang/reflect/Executable;IZ)V", (void*)&WB_MakeMethodNotCompilable}, |
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1033 {CC"testSetDontInlineMethod", |
10113
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1034 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetDontInlineMethod}, |
8051
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diff
changeset
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1035 {CC"getMethodCompilationLevel", |
12073 | 1036 CC"(Ljava/lang/reflect/Executable;Z)I", (void*)&WB_GetMethodCompilationLevel}, |
1037 {CC"getMethodEntryBci", | |
1038 CC"(Ljava/lang/reflect/Executable;)I", (void*)&WB_GetMethodEntryBci}, | |
1039 {CC"getCompileQueueSize", | |
1040 CC"(I)I", (void*)&WB_GetCompileQueueSize}, | |
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1041 {CC"testSetForceInlineMethod", |
10113
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1042 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetForceInlineMethod}, |
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1043 {CC"enqueueMethodForCompilation", |
12073 | 1044 CC"(Ljava/lang/reflect/Executable;II)Z", (void*)&WB_EnqueueMethodForCompilation}, |
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1045 {CC"clearMethodState", |
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1046 CC"(Ljava/lang/reflect/Executable;)V", (void*)&WB_ClearMethodState}, |
20249 | 1047 {CC"setBooleanVMFlag", CC"(Ljava/lang/String;Z)V",(void*)&WB_SetBooleanVMFlag}, |
1048 {CC"setIntxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetIntxVMFlag}, | |
1049 {CC"setUintxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUintxVMFlag}, | |
1050 {CC"setUint64VMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUint64VMFlag}, | |
1051 {CC"setDoubleVMFlag", CC"(Ljava/lang/String;D)V",(void*)&WB_SetDoubleVMFlag}, | |
1052 {CC"setStringVMFlag", CC"(Ljava/lang/String;Ljava/lang/String;)V", | |
1053 (void*)&WB_SetStringVMFlag}, | |
1054 {CC"getBooleanVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Boolean;", | |
1055 (void*)&WB_GetBooleanVMFlag}, | |
1056 {CC"getIntxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1057 (void*)&WB_GetIntxVMFlag}, | |
1058 {CC"getUintxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1059 (void*)&WB_GetUintxVMFlag}, | |
1060 {CC"getUint64VMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", | |
1061 (void*)&WB_GetUint64VMFlag}, | |
1062 {CC"getDoubleVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Double;", | |
1063 (void*)&WB_GetDoubleVMFlag}, | |
1064 {CC"getStringVMFlag", CC"(Ljava/lang/String;)Ljava/lang/String;", | |
1065 (void*)&WB_GetStringVMFlag}, | |
1066 {CC"isInStringTable", CC"(Ljava/lang/String;)Z", (void*)&WB_IsInStringTable }, | |
8850 | 1067 {CC"fullGC", CC"()V", (void*)&WB_FullGC }, |
20357
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20336
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1068 {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'
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1069 {CC"readReservedMemory", CC"()V", (void*)&WB_ReadReservedMemory }, |
20278
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1070 {CC"allocateMetaspace", |
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|
1071 CC"(Ljava/lang/ClassLoader;J)J", (void*)&WB_AllocateMetaspace }, |
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|
1072 {CC"freeMetaspace", |
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|
1073 CC"(Ljava/lang/ClassLoader;JJ)V", (void*)&WB_FreeMetaspace }, |
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|
1074 {CC"incMetaspaceCapacityUntilGC", CC"(J)J", (void*)&WB_IncMetaspaceCapacityUntilGC }, |
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1075 {CC"metaspaceCapacityUntilGC", CC"()J", (void*)&WB_MetaspaceCapacityUntilGC }, |
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|
1076 {CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures }, |
17817 | 1077 {CC"getNMethod", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;", |
1078 (void*)&WB_GetNMethod }, | |
5915 | 1079 }; |
1080 | |
1081 #undef CC | |
1082 | |
1083 JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass)) | |
1084 { | |
1085 if (WhiteBoxAPI) { | |
1086 // Make sure that wbclass is loaded by the null classloader | |
1087 instanceKlassHandle ikh = instanceKlassHandle(JNIHandles::resolve(wbclass)->klass()); | |
1088 Handle loader(ikh->class_loader()); | |
1089 if (loader.is_null()) { | |
20451 | 1090 WhiteBox::register_methods(env, wbclass, thread, methods, sizeof(methods) / sizeof(methods[0])); |
1091 WhiteBox::register_extended(env, wbclass, thread); | |
1092 WhiteBox::set_used(); | |
5915 | 1093 } |
1094 } | |
1095 } | |
1096 JVM_END |