Mercurial > hg > truffle
annotate src/share/vm/prims/whitebox.cpp @ 9093:cd22923e7ca7
removed unnecessary code
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 12 Apr 2013 21:35:27 +0200 |
parents | 7a5aec879506 |
children | 8df6ddda8090 4b2eebe03f93 |
rev | line source |
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5915 | 1 /* |
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. | |
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 | |
27 #include "memory/universe.hpp" | |
28 #include "oops/oop.inline.hpp" | |
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29 |
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30 #include "classfile/symbolTable.hpp" |
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31 #include "classfile/classLoaderData.hpp" |
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32 |
5915 | 33 #include "prims/whitebox.hpp" |
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34 #include "prims/wbtestmethods/parserTests.hpp" |
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35 |
5915 | 36 #include "runtime/interfaceSupport.hpp" |
37 #include "runtime/os.hpp" | |
38 #include "utilities/debug.hpp" | |
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39 #include "utilities/macros.hpp" |
5915 | 40 |
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41 #if INCLUDE_ALL_GCS |
5915 | 42 #include "gc_implementation/g1/concurrentMark.hpp" |
43 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
44 #include "gc_implementation/g1/heapRegionRemSet.hpp" | |
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45 #endif // INCLUDE_ALL_GCS |
5915 | 46 |
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47 #ifdef INCLUDE_NMT |
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48 #include "services/memTracker.hpp" |
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49 #endif // INCLUDE_NMT |
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50 |
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51 #include "compiler/compileBroker.hpp" |
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52 #include "runtime/compilationPolicy.hpp" |
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53 |
5915 | 54 bool WhiteBox::_used = false; |
55 | |
56 WB_ENTRY(jlong, WB_GetObjectAddress(JNIEnv* env, jobject o, jobject obj)) | |
57 return (jlong)(void*)JNIHandles::resolve(obj); | |
58 WB_END | |
59 | |
60 WB_ENTRY(jint, WB_GetHeapOopSize(JNIEnv* env, jobject o)) | |
61 return heapOopSize; | |
62 WB_END | |
63 | |
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64 |
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65 class WBIsKlassAliveClosure : public KlassClosure { |
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66 Symbol* _name; |
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67 bool _found; |
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68 public: |
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69 WBIsKlassAliveClosure(Symbol* name) : _name(name), _found(false) {} |
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70 |
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71 void do_klass(Klass* k) { |
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72 if (_found) return; |
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73 Symbol* ksym = k->name(); |
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74 if (ksym->fast_compare(_name) == 0) { |
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75 _found = true; |
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76 } |
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77 } |
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78 |
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79 bool found() const { |
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80 return _found; |
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81 } |
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82 }; |
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83 |
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84 WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name)) |
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85 Handle h_name = JNIHandles::resolve(name); |
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86 if (h_name.is_null()) return false; |
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87 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false); |
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88 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return |
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89 |
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90 WBIsKlassAliveClosure closure(sym); |
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91 ClassLoaderDataGraph::classes_do(&closure); |
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92 |
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93 return closure.found(); |
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94 WB_END |
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95 |
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96 #if INCLUDE_ALL_GCS |
5915 | 97 WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj)) |
98 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
99 oop result = JNIHandles::resolve(obj); | |
100 const HeapRegion* hr = g1->heap_region_containing(result); | |
101 return hr->isHumongous(); | |
102 WB_END | |
103 | |
104 WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o)) | |
105 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
106 size_t nr = g1->free_regions(); | |
107 return (jlong)nr; | |
108 WB_END | |
109 | |
110 WB_ENTRY(jboolean, WB_G1InConcurrentMark(JNIEnv* env, jobject o)) | |
111 G1CollectedHeap* g1 = G1CollectedHeap::heap(); | |
112 ConcurrentMark* cm = g1->concurrent_mark(); | |
113 return cm->concurrent_marking_in_progress(); | |
114 WB_END | |
115 | |
116 WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o)) | |
117 return (jint)HeapRegion::GrainBytes; | |
118 WB_END | |
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119 #endif // INCLUDE_ALL_GCS |
5915 | 120 |
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121 #ifdef INCLUDE_NMT |
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122 // Alloc memory using the test memory type so that we can use that to see if |
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123 // NMT picks it up correctly |
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124 WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size)) |
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125 jlong addr = 0; |
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126 |
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127 if (MemTracker::is_on() && !MemTracker::shutdown_in_progress()) { |
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128 addr = (jlong)(uintptr_t)os::malloc(size, mtTest); |
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129 } |
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130 |
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131 return addr; |
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132 WB_END |
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133 |
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134 // Free the memory allocated by NMTAllocTest |
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135 WB_ENTRY(void, WB_NMTFree(JNIEnv* env, jobject o, jlong mem)) |
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136 os::free((void*)(uintptr_t)mem, mtTest); |
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137 WB_END |
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138 |
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139 WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size)) |
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140 jlong addr = 0; |
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141 |
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142 if (MemTracker::is_on() && !MemTracker::shutdown_in_progress()) { |
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143 addr = (jlong)(uintptr_t)os::reserve_memory(size); |
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144 MemTracker::record_virtual_memory_type((address)addr, mtTest); |
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145 } |
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146 |
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147 return addr; |
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148 WB_END |
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149 |
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150 |
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151 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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152 os::commit_memory((char *)(uintptr_t)addr, size); |
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153 MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest); |
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154 WB_END |
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155 |
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156 WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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157 os::uncommit_memory((char *)(uintptr_t)addr, size); |
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158 WB_END |
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159 |
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160 WB_ENTRY(void, WB_NMTReleaseMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) |
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161 os::release_memory((char *)(uintptr_t)addr, size); |
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162 WB_END |
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163 |
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164 // Block until the current generation of NMT data to be merged, used to reliably test the NMT feature |
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165 WB_ENTRY(jboolean, WB_NMTWaitForDataMerge(JNIEnv* env)) |
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166 |
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167 if (!MemTracker::is_on() || MemTracker::shutdown_in_progress()) { |
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168 return false; |
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169 } |
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170 |
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171 return MemTracker::wbtest_wait_for_data_merge(); |
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172 WB_END |
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173 |
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174 #endif // INCLUDE_NMT |
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175 |
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176 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) { |
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177 assert(method != NULL, "method should not be null"); |
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178 ThreadToNativeFromVM ttn(thread); |
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179 return env->FromReflectedMethod(method); |
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180 } |
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181 |
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182 WB_ENTRY(void, WB_DeoptimizeAll(JNIEnv* env, jobject o)) |
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183 MutexLockerEx mu(Compile_lock); |
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184 CodeCache::mark_all_nmethods_for_deoptimization(); |
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185 VM_Deoptimize op; |
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186 VMThread::execute(&op); |
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187 WB_END |
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188 |
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189 WB_ENTRY(jint, WB_DeoptimizeMethod(JNIEnv* env, jobject o, jobject method)) |
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190 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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191 MutexLockerEx mu(Compile_lock); |
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192 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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193 int result = 0; |
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194 nmethod* code = mh->code(); |
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195 if (code != NULL) { |
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196 code->mark_for_deoptimization(); |
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197 ++result; |
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198 } |
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199 result += CodeCache::mark_for_deoptimization(mh()); |
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200 if (result > 0) { |
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201 VM_Deoptimize op; |
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202 VMThread::execute(&op); |
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203 } |
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204 return result; |
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205 WB_END |
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206 |
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207 WB_ENTRY(jboolean, WB_IsMethodCompiled(JNIEnv* env, jobject o, jobject method)) |
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208 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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209 MutexLockerEx mu(Compile_lock); |
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210 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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211 nmethod* code = mh->code(); |
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212 if (code == NULL) { |
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213 return JNI_FALSE; |
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214 } |
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215 return (code->is_alive() && !code->is_marked_for_deoptimization()); |
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216 WB_END |
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217 |
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218 WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level)) |
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219 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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220 MutexLockerEx mu(Compile_lock); |
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221 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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222 return CompilationPolicy::can_be_compiled(mh, comp_level); |
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223 WB_END |
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224 |
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225 WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method)) |
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226 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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227 MutexLockerEx mu(Compile_lock); |
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228 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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229 return mh->queued_for_compilation(); |
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230 WB_END |
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231 |
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232 WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method)) |
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233 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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234 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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235 nmethod* code = mh->code(); |
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236 return (code != NULL ? code->comp_level() : CompLevel_none); |
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237 WB_END |
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238 |
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239 |
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240 WB_ENTRY(void, WB_MakeMethodNotCompilable(JNIEnv* env, jobject o, jobject method)) |
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241 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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242 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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243 mh->set_not_compilable(); |
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244 WB_END |
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245 |
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246 WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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247 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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248 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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249 bool result = mh->dont_inline(); |
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250 mh->set_dont_inline(value == JNI_TRUE); |
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251 return result; |
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252 WB_END |
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253 |
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254 WB_ENTRY(jint, WB_GetCompileQueuesSize(JNIEnv* env, jobject o)) |
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255 return CompileBroker::queue_size(CompLevel_full_optimization) /* C2 */ + |
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256 CompileBroker::queue_size(CompLevel_full_profile) /* C1 */; |
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257 WB_END |
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258 |
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259 |
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260 WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) |
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261 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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262 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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263 bool result = mh->force_inline(); |
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264 mh->set_force_inline(value == JNI_TRUE); |
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265 return result; |
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266 WB_END |
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267 |
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268 WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level)) |
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269 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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270 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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271 nmethod* nm = CompileBroker::compile_method(mh, InvocationEntryBci, comp_level, mh, mh->invocation_count(), "WhiteBox", THREAD); |
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272 MutexLockerEx mu(Compile_lock); |
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273 return (mh->queued_for_compilation() || nm != NULL); |
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274 WB_END |
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275 |
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276 WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method)) |
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277 jmethodID jmid = reflected_method_to_jmid(thread, env, method); |
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278 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); |
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279 MutexLockerEx mu(Compile_lock); |
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280 MethodData* mdo = mh->method_data(); |
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281 |
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282 if (mdo != NULL) { |
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283 mdo->init(); |
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284 ResourceMark rm; |
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285 int arg_count = mdo->method()->size_of_parameters(); |
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286 for (int i = 0; i < arg_count; i++) { |
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287 mdo->set_arg_modified(i, 0); |
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288 } |
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289 } |
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290 |
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291 mh->backedge_counter()->init(); |
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292 mh->invocation_counter()->init(); |
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293 mh->set_interpreter_invocation_count(0); |
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294 mh->set_interpreter_throwout_count(0); |
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295 mh->clear_not_c1_compilable(); |
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296 mh->clear_not_c2_compilable(); |
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297 mh->clear_not_c2_osr_compilable(); |
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298 NOT_PRODUCT(mh->set_compiled_invocation_count(0)); |
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299 |
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300 #ifdef TIERED |
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301 mh->set_rate(0.0F); |
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302 mh->set_prev_event_count(0); |
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303 mh->set_prev_time(0); |
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304 #endif |
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305 WB_END |
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306 |
8850 | 307 WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString)) |
308 ResourceMark rm(THREAD); | |
309 int len; | |
310 jchar* name = java_lang_String::as_unicode_string(JNIHandles::resolve(javaString), len); | |
311 oop found_string = StringTable::the_table()->lookup(name, len); | |
312 if (found_string == NULL) { | |
313 return false; | |
314 } | |
315 return true; | |
316 WB_END | |
317 | |
318 | |
319 WB_ENTRY(void, WB_FullGC(JNIEnv* env, jobject o)) | |
320 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(true); | |
321 Universe::heap()->collect(GCCause::_last_ditch_collection); | |
322 WB_END | |
323 | |
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324 //Some convenience methods to deal with objects from java |
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325 int WhiteBox::offset_for_field(const char* field_name, oop object, |
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326 Symbol* signature_symbol) { |
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327 assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid"); |
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328 Thread* THREAD = Thread::current(); |
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329 |
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330 //Get the class of our object |
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331 Klass* arg_klass = object->klass(); |
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332 //Turn it into an instance-klass |
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333 InstanceKlass* ik = InstanceKlass::cast(arg_klass); |
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334 |
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335 //Create symbols to look for in the class |
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336 TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name), |
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337 THREAD); |
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338 |
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339 //To be filled in with an offset of the field we're looking for |
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340 fieldDescriptor fd; |
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341 |
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342 Klass* res = ik->find_field(name_symbol, signature_symbol, &fd); |
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343 if (res == NULL) { |
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344 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), |
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345 name_symbol->as_C_string()); |
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346 fatal("Invalid layout of preloaded class"); |
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347 } |
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348 |
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349 //fetch the field at the offset we've found |
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350 int dest_offset = fd.offset(); |
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351 |
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352 return dest_offset; |
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353 } |
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354 |
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355 |
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356 const char* WhiteBox::lookup_jstring(const char* field_name, oop object) { |
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357 int offset = offset_for_field(field_name, object, |
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358 vmSymbols::string_signature()); |
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359 oop string = object->obj_field(offset); |
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360 if (string == NULL) { |
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361 return NULL; |
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362 } |
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363 const char* ret = java_lang_String::as_utf8_string(string); |
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364 return ret; |
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365 } |
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366 |
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367 bool WhiteBox::lookup_bool(const char* field_name, oop object) { |
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368 int offset = |
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369 offset_for_field(field_name, object, vmSymbols::bool_signature()); |
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370 bool ret = (object->bool_field(offset) == JNI_TRUE); |
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371 return ret; |
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372 } |
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373 |
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374 |
5915 | 375 #define CC (char*) |
376 | |
377 static JNINativeMethod methods[] = { | |
378 {CC"getObjectAddress", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectAddress }, | |
379 {CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize }, | |
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380 {CC"isClassAlive0", CC"(Ljava/lang/String;)Z", (void*)&WB_IsClassAlive }, |
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381 {CC"parseCommandLine", |
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382 CC"(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;", |
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383 (void*) &WB_ParseCommandLine |
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384 }, |
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385 #if INCLUDE_ALL_GCS |
5915 | 386 {CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark}, |
387 {CC"g1IsHumongous", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous }, | |
388 {CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions }, | |
389 {CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize }, | |
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390 #endif // INCLUDE_ALL_GCS |
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391 #ifdef INCLUDE_NMT |
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392 {CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc }, |
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393 {CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree }, |
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394 {CC"NMTReserveMemory", CC"(J)J", (void*)&WB_NMTReserveMemory }, |
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395 {CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory }, |
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396 {CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory }, |
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397 {CC"NMTReleaseMemory", CC"(JJ)V", (void*)&WB_NMTReleaseMemory }, |
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398 {CC"NMTWaitForDataMerge", CC"()Z", (void*)&WB_NMTWaitForDataMerge}, |
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399 #endif // INCLUDE_NMT |
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400 {CC"deoptimizeAll", CC"()V", (void*)&WB_DeoptimizeAll }, |
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401 {CC"deoptimizeMethod", CC"(Ljava/lang/reflect/Method;)I", |
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402 (void*)&WB_DeoptimizeMethod }, |
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403 {CC"isMethodCompiled", CC"(Ljava/lang/reflect/Method;)Z", |
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404 (void*)&WB_IsMethodCompiled }, |
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405 {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Method;I)Z", |
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406 (void*)&WB_IsMethodCompilable}, |
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407 {CC"isMethodQueuedForCompilation", |
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408 CC"(Ljava/lang/reflect/Method;)Z", (void*)&WB_IsMethodQueuedForCompilation}, |
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409 {CC"makeMethodNotCompilable", |
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410 CC"(Ljava/lang/reflect/Method;)V", (void*)&WB_MakeMethodNotCompilable}, |
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411 {CC"testSetDontInlineMethod", |
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412 CC"(Ljava/lang/reflect/Method;Z)Z", (void*)&WB_TestSetDontInlineMethod}, |
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413 {CC"getMethodCompilationLevel", |
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414 CC"(Ljava/lang/reflect/Method;)I", (void*)&WB_GetMethodCompilationLevel}, |
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415 {CC"getCompileQueuesSize", |
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416 CC"()I", (void*)&WB_GetCompileQueuesSize}, |
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417 {CC"testSetForceInlineMethod", |
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418 CC"(Ljava/lang/reflect/Method;Z)Z", (void*)&WB_TestSetForceInlineMethod}, |
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419 {CC"enqueueMethodForCompilation", |
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420 CC"(Ljava/lang/reflect/Method;I)Z", (void*)&WB_EnqueueMethodForCompilation}, |
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421 {CC"clearMethodState", |
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422 CC"(Ljava/lang/reflect/Method;)V", (void*)&WB_ClearMethodState}, |
8850 | 423 {CC"isInStringTable", CC"(Ljava/lang/String;)Z", (void*)&WB_IsInStringTable }, |
424 {CC"fullGC", CC"()V", (void*)&WB_FullGC }, | |
5915 | 425 }; |
426 | |
427 #undef CC | |
428 | |
429 JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass)) | |
430 { | |
431 if (WhiteBoxAPI) { | |
432 // Make sure that wbclass is loaded by the null classloader | |
433 instanceKlassHandle ikh = instanceKlassHandle(JNIHandles::resolve(wbclass)->klass()); | |
434 Handle loader(ikh->class_loader()); | |
435 if (loader.is_null()) { | |
436 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI | |
437 jint result = env->RegisterNatives(wbclass, methods, sizeof(methods)/sizeof(methods[0])); | |
438 if (result == 0) { | |
439 WhiteBox::set_used(); | |
440 } | |
441 } | |
442 } | |
443 } | |
444 JVM_END |