Mercurial > hg > truffle
annotate src/share/vm/prims/jni.cpp @ 14380:e6195383bcaf
8034080: Remove the USDT1 dtrace code from Hotspot
Reviewed-by: dholmes, coleenp
| author | sla |
|---|---|
| date | Tue, 18 Feb 2014 09:15:40 +0100 |
| parents | c66479743828 |
| children | 3f406218c511 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright (c) 2012 Red Hat, Inc. |
| 0 | 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
| 0 | 23 * |
| 24 */ | |
| 25 | |
| 1972 | 26 #include "precompiled.hpp" |
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27 #include "ci/ciReplay.hpp" |
| 6162 | 28 #include "classfile/altHashing.hpp" |
| 1972 | 29 #include "classfile/classLoader.hpp" |
| 30 #include "classfile/javaClasses.hpp" | |
| 31 #include "classfile/symbolTable.hpp" | |
| 32 #include "classfile/systemDictionary.hpp" | |
| 33 #include "classfile/vmSymbols.hpp" | |
| 34 #include "interpreter/linkResolver.hpp" | |
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35 #include "utilities/macros.hpp" |
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36 #if INCLUDE_ALL_GCS |
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37 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
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38 #endif // INCLUDE_ALL_GCS |
| 6197 | 39 #include "memory/allocation.hpp" |
| 1972 | 40 #include "memory/allocation.inline.hpp" |
| 41 #include "memory/gcLocker.inline.hpp" | |
| 42 #include "memory/oopFactory.hpp" | |
| 43 #include "memory/universe.inline.hpp" | |
| 44 #include "oops/instanceKlass.hpp" | |
| 45 #include "oops/instanceOop.hpp" | |
| 46 #include "oops/markOop.hpp" | |
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47 #include "oops/method.hpp" |
| 1972 | 48 #include "oops/objArrayKlass.hpp" |
| 49 #include "oops/objArrayOop.hpp" | |
| 50 #include "oops/oop.inline.hpp" | |
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51 #include "oops/symbol.hpp" |
| 1972 | 52 #include "oops/typeArrayKlass.hpp" |
| 53 #include "oops/typeArrayOop.hpp" | |
| 54 #include "prims/jni.h" | |
| 55 #include "prims/jniCheck.hpp" | |
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56 #include "prims/jniExport.hpp" |
| 1972 | 57 #include "prims/jniFastGetField.hpp" |
| 58 #include "prims/jvm.h" | |
| 59 #include "prims/jvm_misc.hpp" | |
| 60 #include "prims/jvmtiExport.hpp" | |
| 61 #include "prims/jvmtiThreadState.hpp" | |
| 62 #include "runtime/compilationPolicy.hpp" | |
| 63 #include "runtime/fieldDescriptor.hpp" | |
| 64 #include "runtime/fprofiler.hpp" | |
| 65 #include "runtime/handles.inline.hpp" | |
| 66 #include "runtime/interfaceSupport.hpp" | |
| 67 #include "runtime/java.hpp" | |
| 68 #include "runtime/javaCalls.hpp" | |
| 69 #include "runtime/jfieldIDWorkaround.hpp" | |
| 70 #include "runtime/reflection.hpp" | |
| 71 #include "runtime/sharedRuntime.hpp" | |
| 72 #include "runtime/signature.hpp" | |
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73 #include "runtime/thread.inline.hpp" |
| 1972 | 74 #include "runtime/vm_operations.hpp" |
| 75 #include "services/runtimeService.hpp" | |
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76 #include "trace/tracing.hpp" |
| 1972 | 77 #include "utilities/defaultStream.hpp" |
| 78 #include "utilities/dtrace.hpp" | |
| 79 #include "utilities/events.hpp" | |
| 80 #include "utilities/histogram.hpp" | |
| 81 #ifdef TARGET_OS_FAMILY_linux | |
| 82 # include "os_linux.inline.hpp" | |
| 83 #endif | |
| 84 #ifdef TARGET_OS_FAMILY_solaris | |
| 85 # include "os_solaris.inline.hpp" | |
| 86 #endif | |
| 87 #ifdef TARGET_OS_FAMILY_windows | |
| 88 # include "os_windows.inline.hpp" | |
| 89 #endif | |
| 3960 | 90 #ifdef TARGET_OS_FAMILY_bsd |
| 91 # include "os_bsd.inline.hpp" | |
| 92 #endif | |
| 0 | 93 |
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94 static jint CurrentVersion = JNI_VERSION_1_8; |
| 0 | 95 |
| 96 | |
| 97 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace | |
| 98 // '-return' probe regardless of the return path is taken out of the function. | |
| 99 // Methods that have multiple return paths use this to avoid having to | |
| 100 // instrument each return path. Methods that use CHECK or THROW must use this | |
| 101 // since those macros can cause an immedate uninstrumented return. | |
| 102 // | |
| 103 // In order to get the return value, a reference to the variable containing | |
| 104 // the return value must be passed to the contructor of the object, and | |
| 105 // the return value must be set before return (since the mark object has | |
| 106 // a reference to it). | |
| 107 // | |
| 108 // Example: | |
| 109 // DT_RETURN_MARK_DECL(SomeFunc, int); | |
| 110 // JNI_ENTRY(int, SomeFunc, ...) | |
| 111 // int return_value = 0; | |
| 112 // DT_RETURN_MARK(SomeFunc, int, (const int&)return_value); | |
| 113 // foo(CHECK_0) | |
| 114 // return_value = 5; | |
| 115 // return return_value; | |
| 116 // JNI_END | |
| 4006 | 117 #define DT_RETURN_MARK_DECL(name, type, probe) \ |
| 118 DTRACE_ONLY( \ | |
| 119 class DTraceReturnProbeMark_##name { \ | |
| 120 public: \ | |
| 121 const type& _ret_ref; \ | |
| 122 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \ | |
| 123 ~DTraceReturnProbeMark_##name() { \ | |
| 124 probe; \ | |
| 125 } \ | |
| 126 } \ | |
| 127 ) | |
| 128 // Void functions are simpler since there's no return value | |
| 129 #define DT_VOID_RETURN_MARK_DECL(name, probe) \ | |
| 130 DTRACE_ONLY( \ | |
| 131 class DTraceReturnProbeMark_##name { \ | |
| 132 public: \ | |
| 133 ~DTraceReturnProbeMark_##name() { \ | |
| 134 probe; \ | |
| 135 } \ | |
| 136 } \ | |
| 137 ) | |
| 0 | 138 |
| 139 // Place these macros in the function to mark the return. Non-void | |
| 140 // functions need the type and address of the return value. | |
| 141 #define DT_RETURN_MARK(name, type, ref) \ | |
| 142 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) ) | |
| 143 #define DT_VOID_RETURN_MARK(name) \ | |
| 144 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark ) | |
| 145 | |
| 146 | |
| 147 // Use these to select distinct code for floating-point vs. non-floating point | |
| 148 // situations. Used from within common macros where we need slightly | |
| 149 // different behavior for Float/Double | |
| 150 #define FP_SELECT_Boolean(intcode, fpcode) intcode | |
| 151 #define FP_SELECT_Byte(intcode, fpcode) intcode | |
| 152 #define FP_SELECT_Char(intcode, fpcode) intcode | |
| 153 #define FP_SELECT_Short(intcode, fpcode) intcode | |
| 154 #define FP_SELECT_Object(intcode, fpcode) intcode | |
| 155 #define FP_SELECT_Int(intcode, fpcode) intcode | |
| 156 #define FP_SELECT_Long(intcode, fpcode) intcode | |
| 157 #define FP_SELECT_Float(intcode, fpcode) fpcode | |
| 158 #define FP_SELECT_Double(intcode, fpcode) fpcode | |
| 159 #define FP_SELECT(TypeName, intcode, fpcode) \ | |
| 160 FP_SELECT_##TypeName(intcode, fpcode) | |
| 161 | |
| 162 #define COMMA , | |
| 163 | |
| 164 // Choose DT_RETURN_MARK macros based on the type: float/double -> void | |
| 165 // (dtrace doesn't do FP yet) | |
| 4006 | 166 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe) \ |
| 167 FP_SELECT(TypeName, \ | |
| 168 DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) ) | |
| 0 | 169 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \ |
| 170 FP_SELECT(TypeName, \ | |
| 171 DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) ) | |
| 172 | |
| 173 | |
| 174 // out-of-line helpers for class jfieldIDWorkaround: | |
| 175 | |
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176 bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) { |
| 0 | 177 if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) { |
| 178 uintptr_t as_uint = (uintptr_t) id; | |
| 179 intptr_t offset = raw_instance_offset(id); | |
| 180 if (is_checked_jfieldID(id)) { | |
| 181 if (!klass_hash_ok(k, id)) { | |
| 182 return false; | |
| 183 } | |
| 184 } | |
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185 return InstanceKlass::cast(k)->contains_field_offset(offset); |
| 0 | 186 } else { |
| 187 JNIid* result = (JNIid*) id; | |
| 188 #ifdef ASSERT | |
| 189 return result != NULL && result->is_static_field_id(); | |
| 190 #else | |
| 191 return result != NULL; | |
| 192 #endif | |
| 193 } | |
| 194 } | |
| 195 | |
| 196 | |
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197 intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) { |
| 0 | 198 if (offset <= small_offset_mask) { |
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199 Klass* field_klass = k; |
| 6983 | 200 Klass* super_klass = field_klass->super(); |
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201 // With compressed oops the most super class with nonstatic fields would |
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202 // be the owner of fields embedded in the header. |
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203 while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() && |
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204 InstanceKlass::cast(super_klass)->contains_field_offset(offset)) { |
| 0 | 205 field_klass = super_klass; // super contains the field also |
| 6983 | 206 super_klass = field_klass->super(); |
| 0 | 207 } |
| 208 debug_only(No_Safepoint_Verifier nosafepoint;) | |
| 209 uintptr_t klass_hash = field_klass->identity_hash(); | |
| 210 return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place; | |
| 211 } else { | |
| 212 #if 0 | |
| 213 #ifndef PRODUCT | |
| 214 { | |
| 215 ResourceMark rm; | |
| 6983 | 216 warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name()); |
| 0 | 217 } |
| 218 #endif | |
| 219 #endif | |
| 220 return 0; | |
| 221 } | |
| 222 } | |
| 223 | |
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224 bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) { |
| 0 | 225 uintptr_t as_uint = (uintptr_t) id; |
| 226 intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask; | |
| 227 do { | |
| 228 debug_only(No_Safepoint_Verifier nosafepoint;) | |
| 229 // Could use a non-blocking query for identity_hash here... | |
| 230 if ((k->identity_hash() & klass_mask) == klass_hash) | |
| 231 return true; | |
| 6983 | 232 k = k->super(); |
| 0 | 233 } while (k != NULL); |
| 234 return false; | |
| 235 } | |
| 236 | |
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237 void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) { |
| 0 | 238 guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" ); |
| 239 uintptr_t as_uint = (uintptr_t) id; | |
| 240 intptr_t offset = raw_instance_offset(id); | |
| 241 if (VerifyJNIFields) { | |
| 242 if (is_checked_jfieldID(id)) { | |
| 243 guarantee(klass_hash_ok(k, id), | |
| 244 "Bug in native code: jfieldID class must match object"); | |
| 245 } else { | |
| 246 #if 0 | |
| 247 #ifndef PRODUCT | |
| 248 if (Verbose) { | |
| 249 ResourceMark rm; | |
| 6983 | 250 warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name()); |
| 0 | 251 } |
| 252 #endif | |
| 253 #endif | |
| 254 } | |
| 255 } | |
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256 guarantee(InstanceKlass::cast(k)->contains_field_offset(offset), |
| 0 | 257 "Bug in native code: jfieldID offset must address interior of object"); |
| 258 } | |
| 259 | |
| 260 // Pick a reasonable higher bound for local capacity requested | |
| 261 // for EnsureLocalCapacity and PushLocalFrame. We don't want it too | |
| 262 // high because a test (or very unusual application) may try to allocate | |
| 263 // that many handles and run out of swap space. An implementation is | |
| 264 // permitted to allocate more handles than the ensured capacity, so this | |
| 265 // value is set high enough to prevent compatibility problems. | |
| 266 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K; | |
| 267 | |
| 268 | |
| 269 // Wrapper to trace JNI functions | |
| 270 | |
| 271 #ifdef ASSERT | |
| 272 Histogram* JNIHistogram; | |
| 273 static volatile jint JNIHistogram_lock = 0; | |
| 274 | |
| 275 class JNITraceWrapper : public StackObj { | |
| 276 public: | |
| 277 JNITraceWrapper(const char* format, ...) { | |
| 278 if (TraceJNICalls) { | |
| 279 va_list ap; | |
| 280 va_start(ap, format); | |
| 281 tty->print("JNI "); | |
| 282 tty->vprint_cr(format, ap); | |
| 283 va_end(ap); | |
| 284 } | |
| 285 } | |
| 286 }; | |
| 287 | |
| 288 class JNIHistogramElement : public HistogramElement { | |
| 289 public: | |
| 290 JNIHistogramElement(const char* name); | |
| 291 }; | |
| 292 | |
| 293 JNIHistogramElement::JNIHistogramElement(const char* elementName) { | |
| 294 _name = elementName; | |
| 295 uintx count = 0; | |
| 296 | |
| 297 while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) { | |
| 298 while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) { | |
| 299 count +=1; | |
| 300 if ( (WarnOnStalledSpinLock > 0) | |
| 301 && (count % WarnOnStalledSpinLock == 0)) { | |
| 302 warning("JNIHistogram_lock seems to be stalled"); | |
| 303 } | |
| 304 } | |
| 305 } | |
| 306 | |
| 307 | |
| 308 if(JNIHistogram == NULL) | |
| 309 JNIHistogram = new Histogram("JNI Call Counts",100); | |
| 310 | |
| 311 JNIHistogram->add_element(this); | |
| 312 Atomic::dec(&JNIHistogram_lock); | |
| 313 } | |
| 314 | |
| 315 #define JNICountWrapper(arg) \ | |
| 316 static JNIHistogramElement* e = new JNIHistogramElement(arg); \ | |
| 317 /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \ | |
| 318 if (e != NULL) e->increment_count() | |
| 319 #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg) | |
| 320 #else | |
| 321 #define JNIWrapper(arg) | |
| 322 #endif | |
| 323 | |
| 324 | |
| 325 // Implementation of JNI entries | |
| 326 | |
| 4006 | 327 DT_RETURN_MARK_DECL(DefineClass, jclass |
| 328 , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref)); | |
| 0 | 329 |
| 330 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef, | |
| 331 const jbyte *buf, jsize bufLen)) | |
| 332 JNIWrapper("DefineClass"); | |
| 333 | |
| 4006 | 334 HOTSPOT_JNI_DEFINECLASS_ENTRY( |
| 335 env, (char*) name, loaderRef, (char*) buf, bufLen); | |
| 14380 | 336 |
| 0 | 337 jclass cls = NULL; |
| 338 DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls); | |
| 339 | |
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340 TempNewSymbol class_name = NULL; |
| 0 | 341 // Since exceptions can be thrown, class initialization can take place |
| 342 // if name is NULL no check for class name in .class stream has to be made. | |
| 343 if (name != NULL) { | |
| 344 const int str_len = (int)strlen(name); | |
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345 if (str_len > Symbol::max_length()) { |
| 0 | 346 // It's impossible to create this class; the name cannot fit |
| 347 // into the constant pool. | |
| 348 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name); | |
| 349 } | |
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350 class_name = SymbolTable::new_symbol(name, CHECK_NULL); |
| 0 | 351 } |
| 352 ResourceMark rm(THREAD); | |
| 353 ClassFileStream st((u1*) buf, bufLen, NULL); | |
| 354 Handle class_loader (THREAD, JNIHandles::resolve(loaderRef)); | |
| 355 | |
| 356 if (UsePerfData && !class_loader.is_null()) { | |
| 357 // check whether the current caller thread holds the lock or not. | |
| 358 // If not, increment the corresponding counter | |
| 359 if (ObjectSynchronizer:: | |
| 360 query_lock_ownership((JavaThread*)THREAD, class_loader) != | |
| 361 ObjectSynchronizer::owner_self) { | |
| 362 ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc(); | |
| 363 } | |
| 364 } | |
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365 Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader, |
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366 Handle(), &st, true, |
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367 CHECK_NULL); |
| 0 | 368 |
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369 if (TraceClassResolution && k != NULL) { |
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370 trace_class_resolution(k); |
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371 } |
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372 |
| 0 | 373 cls = (jclass)JNIHandles::make_local( |
| 6983 | 374 env, k->java_mirror()); |
| 0 | 375 return cls; |
| 376 JNI_END | |
| 377 | |
| 378 | |
| 379 | |
| 380 static bool first_time_FindClass = true; | |
| 381 | |
| 4006 | 382 DT_RETURN_MARK_DECL(FindClass, jclass |
| 383 , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref)); | |
| 0 | 384 |
| 385 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name)) | |
| 386 JNIWrapper("FindClass"); | |
| 14380 | 387 |
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388 HOTSPOT_JNI_FINDCLASS_ENTRY(env, (char *)name); |
| 0 | 389 |
| 390 jclass result = NULL; | |
| 391 DT_RETURN_MARK(FindClass, jclass, (const jclass&)result); | |
| 392 | |
| 393 // Remember if we are the first invocation of jni_FindClass | |
| 394 bool first_time = first_time_FindClass; | |
| 395 first_time_FindClass = false; | |
| 396 | |
| 397 // Sanity check the name: it cannot be null or larger than the maximum size | |
| 398 // name we can fit in the constant pool. | |
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399 if (name == NULL || (int)strlen(name) > Symbol::max_length()) { |
| 0 | 400 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name); |
| 401 } | |
| 402 | |
| 403 //%note jni_3 | |
| 404 Handle loader; | |
| 405 Handle protection_domain; | |
| 406 // Find calling class | |
| 407 instanceKlassHandle k (THREAD, thread->security_get_caller_class(0)); | |
| 408 if (k.not_null()) { | |
| 409 loader = Handle(THREAD, k->class_loader()); | |
| 410 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed | |
| 411 // in the correct class context. | |
| 412 if (loader.is_null() && | |
| 413 k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) { | |
| 414 JavaValue result(T_OBJECT); | |
| 415 JavaCalls::call_static(&result, k, | |
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416 vmSymbols::getFromClass_name(), |
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417 vmSymbols::void_class_signature(), |
| 0 | 418 thread); |
| 419 if (HAS_PENDING_EXCEPTION) { | |
| 420 Handle ex(thread, thread->pending_exception()); | |
| 421 CLEAR_PENDING_EXCEPTION; | |
| 422 THROW_HANDLE_0(ex); | |
| 423 } | |
| 424 oop mirror = (oop) result.get_jobject(); | |
| 425 loader = Handle(THREAD, | |
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426 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader()); |
| 0 | 427 protection_domain = Handle(THREAD, |
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428 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain()); |
| 0 | 429 } |
| 430 } else { | |
| 431 // We call ClassLoader.getSystemClassLoader to obtain the system class loader. | |
| 432 loader = Handle(THREAD, SystemDictionary::java_system_loader()); | |
| 433 } | |
| 434 | |
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435 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL); |
| 0 | 436 result = find_class_from_class_loader(env, sym, true, loader, |
| 437 protection_domain, true, thread); | |
| 438 | |
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439 if (TraceClassResolution && result != NULL) { |
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440 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result))); |
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441 } |
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442 |
| 0 | 443 // If we were the first invocation of jni_FindClass, we enable compilation again |
| 444 // rather than just allowing invocation counter to overflow and decay. | |
| 445 // Controlled by flag DelayCompilationDuringStartup. | |
| 446 if (first_time && !CompileTheWorld) | |
| 447 CompilationPolicy::completed_vm_startup(); | |
| 448 | |
| 449 return result; | |
| 450 JNI_END | |
| 451 | |
| 4006 | 452 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID |
| 453 , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref)); | |
| 0 | 454 |
| 455 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method)) | |
| 456 JNIWrapper("FromReflectedMethod"); | |
| 14380 | 457 |
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458 HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(env, method); |
| 14380 | 459 |
| 0 | 460 jmethodID ret = NULL; |
| 461 DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret); | |
| 462 | |
| 463 // method is a handle to a java.lang.reflect.Method object | |
| 464 oop reflected = JNIHandles::resolve_non_null(method); | |
| 465 oop mirror = NULL; | |
| 466 int slot = 0; | |
| 467 | |
| 1142 | 468 if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) { |
| 0 | 469 mirror = java_lang_reflect_Constructor::clazz(reflected); |
| 470 slot = java_lang_reflect_Constructor::slot(reflected); | |
| 471 } else { | |
| 1142 | 472 assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type"); |
| 0 | 473 mirror = java_lang_reflect_Method::clazz(reflected); |
| 474 slot = java_lang_reflect_Method::slot(reflected); | |
| 475 } | |
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476 Klass* k = java_lang_Class::as_Klass(mirror); |
| 0 | 477 |
| 478 KlassHandle k1(THREAD, k); | |
| 479 // Make sure class is initialized before handing id's out to methods | |
| 6983 | 480 k1()->initialize(CHECK_NULL); |
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481 Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot); |
| 0 | 482 ret = m==NULL? NULL : m->jmethod_id(); // return NULL if reflected method deleted |
| 483 return ret; | |
| 484 JNI_END | |
| 485 | |
| 4006 | 486 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID |
| 487 , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref)); | |
| 0 | 488 |
| 489 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field)) | |
| 490 JNIWrapper("FromReflectedField"); | |
| 14380 | 491 |
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492 HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(env, field); |
| 14380 | 493 |
| 0 | 494 jfieldID ret = NULL; |
| 495 DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret); | |
| 496 | |
| 497 // field is a handle to a java.lang.reflect.Field object | |
| 498 oop reflected = JNIHandles::resolve_non_null(field); | |
| 499 oop mirror = java_lang_reflect_Field::clazz(reflected); | |
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500 Klass* k = java_lang_Class::as_Klass(mirror); |
| 0 | 501 int slot = java_lang_reflect_Field::slot(reflected); |
| 502 int modifiers = java_lang_reflect_Field::modifiers(reflected); | |
| 503 | |
| 504 KlassHandle k1(THREAD, k); | |
| 505 // Make sure class is initialized before handing id's out to fields | |
| 6983 | 506 k1()->initialize(CHECK_NULL); |
| 0 | 507 |
| 508 // First check if this is a static field | |
| 509 if (modifiers & JVM_ACC_STATIC) { | |
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510 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot ); |
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511 JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset); |
| 0 | 512 assert(id != NULL, "corrupt Field object"); |
| 513 debug_only(id->set_is_static_field_id();) | |
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514 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass* |
| 0 | 515 ret = jfieldIDWorkaround::to_static_jfieldID(id); |
| 516 return ret; | |
| 517 } | |
| 518 | |
| 519 // The slot is the index of the field description in the field-array | |
| 520 // The jfieldID is the offset of the field within the object | |
| 521 // It may also have hash bits for k, if VerifyJNIFields is turned on. | |
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522 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot ); |
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523 assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object"); |
| 0 | 524 ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset); |
| 525 return ret; | |
| 526 JNI_END | |
| 527 | |
| 14380 | 528 |
| 4006 | 529 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject |
| 530 , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref)); | |
| 0 | 531 |
| 532 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic)) | |
| 533 JNIWrapper("ToReflectedMethod"); | |
| 14380 | 534 |
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535 HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(env, cls, (uintptr_t) method_id, isStatic); |
| 14380 | 536 |
| 0 | 537 jobject ret = NULL; |
| 538 DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret); | |
| 539 | |
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540 methodHandle m (THREAD, Method::resolve_jmethod_id(method_id)); |
| 0 | 541 assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match"); |
| 542 oop reflection_method; | |
| 543 if (m->is_initializer()) { | |
| 544 reflection_method = Reflection::new_constructor(m, CHECK_NULL); | |
| 545 } else { | |
| 546 reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL); | |
| 547 } | |
| 548 ret = JNIHandles::make_local(env, reflection_method); | |
| 549 return ret; | |
| 550 JNI_END | |
| 551 | |
| 4006 | 552 DT_RETURN_MARK_DECL(GetSuperclass, jclass |
| 553 , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref)); | |
| 0 | 554 |
| 555 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub)) | |
| 556 JNIWrapper("GetSuperclass"); | |
| 14380 | 557 |
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558 HOTSPOT_JNI_GETSUPERCLASS_ENTRY(env, sub); |
| 14380 | 559 |
| 0 | 560 jclass obj = NULL; |
| 561 DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj); | |
| 562 | |
| 563 oop mirror = JNIHandles::resolve_non_null(sub); | |
| 564 // primitive classes return NULL | |
| 565 if (java_lang_Class::is_primitive(mirror)) return NULL; | |
| 566 | |
| 567 // Rules of Class.getSuperClass as implemented by KLass::java_super: | |
| 568 // arrays return Object | |
| 569 // interfaces return NULL | |
| 570 // proper classes return Klass::super() | |
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571 Klass* k = java_lang_Class::as_Klass(mirror); |
| 6983 | 572 if (k->is_interface()) return NULL; |
| 0 | 573 |
| 574 // return mirror for superclass | |
| 6983 | 575 Klass* super = k->java_super(); |
| 0 | 576 // super2 is the value computed by the compiler's getSuperClass intrinsic: |
| 6983 | 577 debug_only(Klass* super2 = ( k->oop_is_array() |
| 1142 | 578 ? SystemDictionary::Object_klass() |
| 6983 | 579 : k->super() ) ); |
| 0 | 580 assert(super == super2, |
| 581 "java_super computation depends on interface, array, other super"); | |
| 6983 | 582 obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror()); |
| 0 | 583 return obj; |
| 584 JNI_END | |
| 585 | |
| 586 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super)) | |
| 587 JNIWrapper("IsSubclassOf"); | |
| 14380 | 588 |
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589 HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(env, sub, super); |
| 14380 | 590 |
| 0 | 591 oop sub_mirror = JNIHandles::resolve_non_null(sub); |
| 592 oop super_mirror = JNIHandles::resolve_non_null(super); | |
| 593 if (java_lang_Class::is_primitive(sub_mirror) || | |
| 594 java_lang_Class::is_primitive(super_mirror)) { | |
| 595 jboolean ret = (sub_mirror == super_mirror); | |
| 14380 | 596 |
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597 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(ret); |
| 0 | 598 return ret; |
| 599 } | |
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600 Klass* sub_klass = java_lang_Class::as_Klass(sub_mirror); |
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601 Klass* super_klass = java_lang_Class::as_Klass(super_mirror); |
| 0 | 602 assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom"); |
| 6983 | 603 jboolean ret = sub_klass->is_subtype_of(super_klass) ? |
| 0 | 604 JNI_TRUE : JNI_FALSE; |
| 14380 | 605 |
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606 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(ret); |
| 0 | 607 return ret; |
| 608 JNI_END | |
| 609 | |
| 14380 | 610 |
| 4006 | 611 DT_RETURN_MARK_DECL(Throw, jint |
| 612 , HOTSPOT_JNI_THROW_RETURN(_ret_ref)); | |
| 0 | 613 |
| 614 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj)) | |
| 615 JNIWrapper("Throw"); | |
| 14380 | 616 |
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617 HOTSPOT_JNI_THROW_ENTRY(env, obj); |
| 14380 | 618 |
| 0 | 619 jint ret = JNI_OK; |
| 620 DT_RETURN_MARK(Throw, jint, (const jint&)ret); | |
| 621 | |
| 622 THROW_OOP_(JNIHandles::resolve(obj), JNI_OK); | |
| 623 ShouldNotReachHere(); | |
| 624 JNI_END | |
| 625 | |
| 14380 | 626 |
| 4006 | 627 DT_RETURN_MARK_DECL(ThrowNew, jint |
| 628 , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref)); | |
| 0 | 629 |
| 630 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message)) | |
| 631 JNIWrapper("ThrowNew"); | |
| 14380 | 632 |
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633 HOTSPOT_JNI_THROWNEW_ENTRY(env, clazz, (char *) message); |
| 14380 | 634 |
| 0 | 635 jint ret = JNI_OK; |
| 636 DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret); | |
| 637 | |
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638 InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
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639 Symbol* name = k->name(); |
| 0 | 640 Handle class_loader (THREAD, k->class_loader()); |
| 641 Handle protection_domain (THREAD, k->protection_domain()); | |
| 642 THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK); | |
| 643 ShouldNotReachHere(); | |
| 644 JNI_END | |
| 645 | |
| 646 | |
| 647 // JNI functions only transform a pending async exception to a synchronous | |
| 648 // exception in ExceptionOccurred and ExceptionCheck calls, since | |
| 649 // delivering an async exception in other places won't change the native | |
| 650 // code's control flow and would be harmful when native code further calls | |
| 651 // JNI functions with a pending exception. Async exception is also checked | |
| 652 // during the call, so ExceptionOccurred/ExceptionCheck won't return | |
| 653 // false but deliver the async exception at the very end during | |
| 654 // state transition. | |
| 655 | |
| 656 static void jni_check_async_exceptions(JavaThread *thread) { | |
| 657 assert(thread == Thread::current(), "must be itself"); | |
| 658 thread->check_and_handle_async_exceptions(); | |
| 659 } | |
| 660 | |
| 661 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env)) | |
| 662 JNIWrapper("ExceptionOccurred"); | |
| 14380 | 663 |
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664 HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(env); |
| 14380 | 665 |
| 0 | 666 jni_check_async_exceptions(thread); |
| 667 oop exception = thread->pending_exception(); | |
| 668 jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception); | |
| 14380 | 669 |
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670 HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(ret); |
| 0 | 671 return ret; |
| 672 JNI_END | |
| 673 | |
| 674 | |
| 675 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env)) | |
| 676 JNIWrapper("ExceptionDescribe"); | |
| 14380 | 677 |
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678 HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(env); |
| 14380 | 679 |
| 0 | 680 if (thread->has_pending_exception()) { |
| 681 Handle ex(thread, thread->pending_exception()); | |
| 682 thread->clear_pending_exception(); | |
| 1142 | 683 if (ex->is_a(SystemDictionary::ThreadDeath_klass())) { |
| 0 | 684 // Don't print anything if we are being killed. |
| 685 } else { | |
| 686 jio_fprintf(defaultStream::error_stream(), "Exception "); | |
| 687 if (thread != NULL && thread->threadObj() != NULL) { | |
| 688 ResourceMark rm(THREAD); | |
| 689 jio_fprintf(defaultStream::error_stream(), | |
| 690 "in thread \"%s\" ", thread->get_thread_name()); | |
| 691 } | |
| 1142 | 692 if (ex->is_a(SystemDictionary::Throwable_klass())) { |
| 0 | 693 JavaValue result(T_VOID); |
| 694 JavaCalls::call_virtual(&result, | |
| 695 ex, | |
| 696 KlassHandle(THREAD, | |
| 1142 | 697 SystemDictionary::Throwable_klass()), |
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698 vmSymbols::printStackTrace_name(), |
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699 vmSymbols::void_method_signature(), |
| 0 | 700 THREAD); |
| 701 // If an exception is thrown in the call it gets thrown away. Not much | |
| 702 // we can do with it. The native code that calls this, does not check | |
| 703 // for the exception - hence, it might still be in the thread when DestroyVM gets | |
| 704 // called, potentially causing a few asserts to trigger - since no pending exception | |
| 705 // is expected. | |
| 706 CLEAR_PENDING_EXCEPTION; | |
| 707 } else { | |
| 708 ResourceMark rm(THREAD); | |
| 709 jio_fprintf(defaultStream::error_stream(), | |
| 710 ". Uncaught exception of type %s.", | |
| 6983 | 711 ex->klass()->external_name()); |
| 0 | 712 } |
| 713 } | |
| 714 } | |
| 14380 | 715 |
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716 HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(); |
| 0 | 717 JNI_END |
| 718 | |
| 719 | |
| 720 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env)) | |
| 721 JNIWrapper("ExceptionClear"); | |
| 14380 | 722 |
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723 HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(env); |
| 0 | 724 |
| 725 // The jni code might be using this API to clear java thrown exception. | |
| 726 // So just mark jvmti thread exception state as exception caught. | |
| 727 JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state(); | |
| 728 if (state != NULL && state->is_exception_detected()) { | |
| 729 state->set_exception_caught(); | |
| 730 } | |
| 731 thread->clear_pending_exception(); | |
| 14380 | 732 |
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733 HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(); |
| 0 | 734 JNI_END |
| 735 | |
| 736 | |
| 737 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg)) | |
| 738 JNIWrapper("FatalError"); | |
| 14380 | 739 |
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740 HOTSPOT_JNI_FATALERROR_ENTRY(env, (char *) msg); |
| 14380 | 741 |
| 0 | 742 tty->print_cr("FATAL ERROR in native method: %s", msg); |
| 743 thread->print_stack(); | |
|
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744 os::abort(); // Dump core and abort |
| 0 | 745 JNI_END |
| 746 | |
| 747 | |
| 748 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity)) | |
| 749 JNIWrapper("PushLocalFrame"); | |
| 14380 | 750 |
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751 HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(env, capacity); |
| 14380 | 752 |
| 0 | 753 //%note jni_11 |
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754 if (capacity < 0 || capacity > MAX_REASONABLE_LOCAL_CAPACITY) { |
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755 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN((uint32_t)JNI_ERR); |
| 0 | 756 return JNI_ERR; |
| 757 } | |
| 758 JNIHandleBlock* old_handles = thread->active_handles(); | |
| 759 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
| 760 assert(new_handles != NULL, "should not be NULL"); | |
| 761 new_handles->set_pop_frame_link(old_handles); | |
| 762 thread->set_active_handles(new_handles); | |
| 763 jint ret = JNI_OK; | |
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764 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(ret); |
| 0 | 765 return ret; |
| 766 JNI_END | |
| 767 | |
| 768 | |
| 769 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result)) | |
| 770 JNIWrapper("PopLocalFrame"); | |
| 14380 | 771 |
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772 HOTSPOT_JNI_POPLOCALFRAME_ENTRY(env, result); |
| 14380 | 773 |
| 0 | 774 //%note jni_11 |
| 775 Handle result_handle(thread, JNIHandles::resolve(result)); | |
| 776 JNIHandleBlock* old_handles = thread->active_handles(); | |
| 777 JNIHandleBlock* new_handles = old_handles->pop_frame_link(); | |
| 778 if (new_handles != NULL) { | |
| 779 // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL. | |
| 780 // This way code will still work if PopLocalFrame is called without a corresponding | |
| 781 // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise | |
| 782 // the release_block call will release the blocks. | |
| 783 thread->set_active_handles(new_handles); | |
| 784 old_handles->set_pop_frame_link(NULL); // clear link we won't release new_handles below | |
| 785 JNIHandleBlock::release_block(old_handles, thread); // may block | |
| 786 result = JNIHandles::make_local(thread, result_handle()); | |
| 787 } | |
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788 HOTSPOT_JNI_POPLOCALFRAME_RETURN(result); |
| 0 | 789 return result; |
| 790 JNI_END | |
| 791 | |
| 792 | |
| 793 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref)) | |
| 794 JNIWrapper("NewGlobalRef"); | |
| 14380 | 795 |
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796 HOTSPOT_JNI_NEWGLOBALREF_ENTRY(env, ref); |
| 14380 | 797 |
| 0 | 798 Handle ref_handle(thread, JNIHandles::resolve(ref)); |
| 799 jobject ret = JNIHandles::make_global(ref_handle); | |
| 14380 | 800 |
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801 HOTSPOT_JNI_NEWGLOBALREF_RETURN(ret); |
| 0 | 802 return ret; |
| 803 JNI_END | |
| 804 | |
| 805 // Must be JNI_ENTRY (with HandleMark) | |
| 806 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref)) | |
| 807 JNIWrapper("DeleteGlobalRef"); | |
| 14380 | 808 |
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809 HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(env, ref); |
| 14380 | 810 |
| 0 | 811 JNIHandles::destroy_global(ref); |
| 14380 | 812 |
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813 HOTSPOT_JNI_DELETEGLOBALREF_RETURN(); |
| 0 | 814 JNI_END |
| 815 | |
| 816 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj)) | |
| 817 JNIWrapper("DeleteLocalRef"); | |
| 14380 | 818 |
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819 HOTSPOT_JNI_DELETELOCALREF_ENTRY(env, obj); |
| 14380 | 820 |
| 0 | 821 JNIHandles::destroy_local(obj); |
| 14380 | 822 |
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823 HOTSPOT_JNI_DELETELOCALREF_RETURN(); |
| 0 | 824 JNI_END |
| 825 | |
| 826 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2)) | |
| 827 JNIWrapper("IsSameObject"); | |
| 14380 | 828 |
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829 HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(env, r1, r2); |
| 14380 | 830 |
| 0 | 831 oop a = JNIHandles::resolve(r1); |
| 832 oop b = JNIHandles::resolve(r2); | |
| 833 jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE; | |
| 14380 | 834 |
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835 HOTSPOT_JNI_ISSAMEOBJECT_RETURN(ret); |
| 0 | 836 return ret; |
| 837 JNI_END | |
| 838 | |
| 839 | |
| 840 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref)) | |
| 841 JNIWrapper("NewLocalRef"); | |
| 14380 | 842 |
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843 HOTSPOT_JNI_NEWLOCALREF_ENTRY(env, ref); |
| 14380 | 844 |
| 0 | 845 jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref)); |
| 14380 | 846 |
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847 HOTSPOT_JNI_NEWLOCALREF_RETURN(ret); |
| 0 | 848 return ret; |
| 849 JNI_END | |
| 850 | |
| 851 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity)) | |
| 852 JNIWrapper("EnsureLocalCapacity"); | |
| 14380 | 853 |
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854 HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(env, capacity); |
| 14380 | 855 |
| 0 | 856 jint ret; |
| 857 if (capacity >= 0 && capacity <= MAX_REASONABLE_LOCAL_CAPACITY) { | |
| 858 ret = JNI_OK; | |
| 859 } else { | |
| 860 ret = JNI_ERR; | |
| 861 } | |
| 14380 | 862 |
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863 HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(ret); |
| 0 | 864 return ret; |
| 865 JNI_END | |
| 866 | |
| 867 // Return the Handle Type | |
| 868 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj)) | |
| 869 JNIWrapper("GetObjectRefType"); | |
| 14380 | 870 |
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871 HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(env, obj); |
| 14380 | 872 |
| 0 | 873 jobjectRefType ret; |
| 874 if (JNIHandles::is_local_handle(thread, obj) || | |
| 875 JNIHandles::is_frame_handle(thread, obj)) | |
| 876 ret = JNILocalRefType; | |
| 877 else if (JNIHandles::is_global_handle(obj)) | |
| 878 ret = JNIGlobalRefType; | |
| 879 else if (JNIHandles::is_weak_global_handle(obj)) | |
| 880 ret = JNIWeakGlobalRefType; | |
| 881 else | |
| 882 ret = JNIInvalidRefType; | |
| 14380 | 883 |
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884 HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN((void *) ret); |
| 0 | 885 return ret; |
| 886 JNI_END | |
| 887 | |
| 888 | |
| 889 class JNI_ArgumentPusher : public SignatureIterator { | |
| 890 protected: | |
| 891 JavaCallArguments* _arguments; | |
| 892 | |
| 893 virtual void get_bool () = 0; | |
| 894 virtual void get_char () = 0; | |
| 895 virtual void get_short () = 0; | |
| 896 virtual void get_byte () = 0; | |
| 897 virtual void get_int () = 0; | |
| 898 virtual void get_long () = 0; | |
| 899 virtual void get_float () = 0; | |
| 900 virtual void get_double () = 0; | |
| 901 virtual void get_object () = 0; | |
| 902 | |
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903 JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) { |
| 0 | 904 this->_return_type = T_ILLEGAL; |
| 905 _arguments = NULL; | |
| 906 } | |
| 907 | |
| 908 public: | |
| 909 virtual void iterate( uint64_t fingerprint ) = 0; | |
| 910 | |
| 911 void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; } | |
| 912 | |
| 913 inline void do_bool() { if (!is_return_type()) get_bool(); } | |
| 914 inline void do_char() { if (!is_return_type()) get_char(); } | |
| 915 inline void do_short() { if (!is_return_type()) get_short(); } | |
| 916 inline void do_byte() { if (!is_return_type()) get_byte(); } | |
| 917 inline void do_int() { if (!is_return_type()) get_int(); } | |
| 918 inline void do_long() { if (!is_return_type()) get_long(); } | |
| 919 inline void do_float() { if (!is_return_type()) get_float(); } | |
| 920 inline void do_double() { if (!is_return_type()) get_double(); } | |
| 921 inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); } | |
| 922 inline void do_array(int begin, int end) { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array | |
| 923 inline void do_void() { } | |
| 924 | |
| 925 JavaCallArguments* arguments() { return _arguments; } | |
| 926 void push_receiver(Handle h) { _arguments->push_oop(h); } | |
| 927 }; | |
| 928 | |
| 929 | |
| 930 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher { | |
| 931 protected: | |
| 932 va_list _ap; | |
| 933 | |
| 934 inline void get_bool() { _arguments->push_int(va_arg(_ap, jint)); } // bool is coerced to int when using va_arg | |
| 935 inline void get_char() { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg | |
| 936 inline void get_short() { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg | |
| 937 inline void get_byte() { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg | |
| 938 inline void get_int() { _arguments->push_int(va_arg(_ap, jint)); } | |
| 939 | |
| 940 // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests | |
| 941 | |
| 942 inline void get_long() { _arguments->push_long(va_arg(_ap, jlong)); } | |
| 943 inline void get_float() { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg | |
| 944 inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); } | |
| 945 inline void get_object() { jobject l = va_arg(_ap, jobject); | |
| 946 _arguments->push_oop(Handle((oop *)l, false)); } | |
| 947 | |
| 948 inline void set_ap(va_list rap) { | |
| 949 #ifdef va_copy | |
| 950 va_copy(_ap, rap); | |
| 951 #elif defined (__va_copy) | |
| 952 __va_copy(_ap, rap); | |
| 953 #else | |
| 954 _ap = rap; | |
| 955 #endif | |
| 956 } | |
| 957 | |
| 958 public: | |
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959 JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap) |
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960 : JNI_ArgumentPusher(signature) { |
| 0 | 961 set_ap(rap); |
| 962 } | |
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963 JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap) |
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964 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) { |
| 0 | 965 set_ap(rap); |
| 966 } | |
| 967 | |
| 968 // Optimized path if we have the bitvector form of signature | |
| 969 void iterate( uint64_t fingerprint ) { | |
| 970 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments | |
| 971 else { | |
| 972 _return_type = (BasicType)((fingerprint >> static_feature_size) & | |
| 973 result_feature_mask); | |
| 974 | |
| 975 assert(fingerprint, "Fingerprint should not be 0"); | |
| 976 fingerprint = fingerprint >> (static_feature_size + result_feature_size); | |
| 977 while ( 1 ) { | |
| 978 switch ( fingerprint & parameter_feature_mask ) { | |
| 979 case bool_parm: | |
| 980 case char_parm: | |
| 981 case short_parm: | |
| 982 case byte_parm: | |
| 983 case int_parm: | |
| 984 get_int(); | |
| 985 break; | |
| 986 case obj_parm: | |
| 987 get_object(); | |
| 988 break; | |
| 989 case long_parm: | |
| 990 get_long(); | |
| 991 break; | |
| 992 case float_parm: | |
| 993 get_float(); | |
| 994 break; | |
| 995 case double_parm: | |
| 996 get_double(); | |
| 997 break; | |
| 998 case done_parm: | |
| 999 return; | |
| 1000 break; | |
| 1001 default: | |
| 1002 ShouldNotReachHere(); | |
| 1003 break; | |
| 1004 } | |
| 1005 fingerprint >>= parameter_feature_size; | |
| 1006 } | |
| 1007 } | |
| 1008 } | |
| 1009 }; | |
| 1010 | |
| 1011 | |
| 1012 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher { | |
| 1013 protected: | |
| 1014 const jvalue *_ap; | |
| 1015 | |
| 1016 inline void get_bool() { _arguments->push_int((jint)(_ap++)->z); } | |
| 1017 inline void get_char() { _arguments->push_int((jint)(_ap++)->c); } | |
| 1018 inline void get_short() { _arguments->push_int((jint)(_ap++)->s); } | |
| 1019 inline void get_byte() { _arguments->push_int((jint)(_ap++)->b); } | |
| 1020 inline void get_int() { _arguments->push_int((jint)(_ap++)->i); } | |
| 1021 | |
| 1022 inline void get_long() { _arguments->push_long((_ap++)->j); } | |
| 1023 inline void get_float() { _arguments->push_float((_ap++)->f); } | |
| 1024 inline void get_double() { _arguments->push_double((_ap++)->d);} | |
| 1025 inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); } | |
| 1026 | |
| 1027 inline void set_ap(const jvalue *rap) { _ap = rap; } | |
| 1028 | |
| 1029 public: | |
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1030 JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap) |
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1031 : JNI_ArgumentPusher(signature) { |
| 0 | 1032 set_ap(rap); |
| 1033 } | |
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1034 JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap) |
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1035 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) { |
| 0 | 1036 set_ap(rap); |
| 1037 } | |
| 1038 | |
| 1039 // Optimized path if we have the bitvector form of signature | |
| 1040 void iterate( uint64_t fingerprint ) { | |
| 1041 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments | |
| 1042 else { | |
| 1043 _return_type = (BasicType)((fingerprint >> static_feature_size) & | |
| 1044 result_feature_mask); | |
| 1045 assert(fingerprint, "Fingerprint should not be 0"); | |
| 1046 fingerprint = fingerprint >> (static_feature_size + result_feature_size); | |
| 1047 while ( 1 ) { | |
| 1048 switch ( fingerprint & parameter_feature_mask ) { | |
| 1049 case bool_parm: | |
| 1050 get_bool(); | |
| 1051 break; | |
| 1052 case char_parm: | |
| 1053 get_char(); | |
| 1054 break; | |
| 1055 case short_parm: | |
| 1056 get_short(); | |
| 1057 break; | |
| 1058 case byte_parm: | |
| 1059 get_byte(); | |
| 1060 break; | |
| 1061 case int_parm: | |
| 1062 get_int(); | |
| 1063 break; | |
| 1064 case obj_parm: | |
| 1065 get_object(); | |
| 1066 break; | |
| 1067 case long_parm: | |
| 1068 get_long(); | |
| 1069 break; | |
| 1070 case float_parm: | |
| 1071 get_float(); | |
| 1072 break; | |
| 1073 case double_parm: | |
| 1074 get_double(); | |
| 1075 break; | |
| 1076 case done_parm: | |
| 1077 return; | |
| 1078 break; | |
| 1079 default: | |
| 1080 ShouldNotReachHere(); | |
| 1081 break; | |
| 1082 } | |
| 1083 fingerprint >>= parameter_feature_size; | |
| 1084 } | |
| 1085 } | |
| 1086 } | |
| 1087 }; | |
| 1088 | |
| 1089 | |
| 1090 enum JNICallType { | |
| 1091 JNI_STATIC, | |
| 1092 JNI_VIRTUAL, | |
| 1093 JNI_NONVIRTUAL | |
| 1094 }; | |
| 1095 | |
| 1096 | |
| 1097 | |
| 1098 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) { | |
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1099 methodHandle method(THREAD, Method::resolve_jmethod_id(method_id)); |
| 0 | 1100 |
| 1101 // Create object to hold arguments for the JavaCall, and associate it with | |
| 1102 // the jni parser | |
| 1103 ResourceMark rm(THREAD); | |
| 1104 int number_of_parameters = method->size_of_parameters(); | |
| 1105 JavaCallArguments java_args(number_of_parameters); | |
| 1106 args->set_java_argument_object(&java_args); | |
| 1107 | |
| 1108 assert(method->is_static(), "method should be static"); | |
| 1109 | |
| 1110 // Fill out JavaCallArguments object | |
|
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1111 args->iterate( Fingerprinter(method).fingerprint() ); |
| 0 | 1112 // Initialize result type |
| 1113 result->set_type(args->get_ret_type()); | |
| 1114 | |
| 1115 // Invoke the method. Result is returned as oop. | |
| 1116 JavaCalls::call(result, method, &java_args, CHECK); | |
| 1117 | |
| 1118 // Convert result | |
| 1119 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) { | |
| 1120 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject())); | |
| 1121 } | |
| 1122 } | |
| 1123 | |
| 1124 | |
| 1125 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) { | |
| 1126 oop recv = JNIHandles::resolve(receiver); | |
| 1127 if (recv == NULL) { | |
| 1128 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 1129 } | |
| 1130 Handle h_recv(THREAD, recv); | |
| 1131 | |
| 1132 int number_of_parameters; | |
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1133 Method* selected_method; |
| 0 | 1134 { |
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1135 Method* m = Method::resolve_jmethod_id(method_id); |
| 0 | 1136 number_of_parameters = m->size_of_parameters(); |
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1137 Klass* holder = m->method_holder(); |
| 6983 | 1138 if (!(holder)->is_interface()) { |
| 0 | 1139 // non-interface call -- for that little speed boost, don't handlize |
| 1140 debug_only(No_Safepoint_Verifier nosafepoint;) | |
| 1141 if (call_type == JNI_VIRTUAL) { | |
| 1142 // jni_GetMethodID makes sure class is linked and initialized | |
| 1143 // so m should have a valid vtable index. | |
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1144 assert(!m->has_itable_index(), ""); |
| 0 | 1145 int vtbl_index = m->vtable_index(); |
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1146 if (vtbl_index != Method::nonvirtual_vtable_index) { |
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1147 Klass* k = h_recv->klass(); |
| 0 | 1148 // k might be an arrayKlassOop but all vtables start at |
| 1149 // the same place. The cast is to avoid virtual call and assertion. | |
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1150 InstanceKlass *ik = (InstanceKlass*)k; |
| 0 | 1151 selected_method = ik->method_at_vtable(vtbl_index); |
| 1152 } else { | |
| 1153 // final method | |
| 1154 selected_method = m; | |
| 1155 } | |
| 1156 } else { | |
| 1157 // JNI_NONVIRTUAL call | |
| 1158 selected_method = m; | |
| 1159 } | |
| 1160 } else { | |
| 1161 // interface call | |
| 1162 KlassHandle h_holder(THREAD, holder); | |
| 1163 | |
| 14320 | 1164 if (call_type == JNI_VIRTUAL) { |
| 1165 int itbl_index = m->itable_index(); | |
| 1166 Klass* k = h_recv->klass(); | |
| 1167 selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK); | |
| 1168 } else { | |
| 1169 selected_method = m; | |
| 1170 } | |
| 0 | 1171 } |
| 1172 } | |
| 1173 | |
| 1174 methodHandle method(THREAD, selected_method); | |
| 1175 | |
| 1176 // Create object to hold arguments for the JavaCall, and associate it with | |
| 1177 // the jni parser | |
| 1178 ResourceMark rm(THREAD); | |
| 1179 JavaCallArguments java_args(number_of_parameters); | |
| 1180 args->set_java_argument_object(&java_args); | |
| 1181 | |
| 1182 // handle arguments | |
| 1183 assert(!method->is_static(), "method should not be static"); | |
| 1184 args->push_receiver(h_recv); // Push jobject handle | |
| 1185 | |
| 1186 // Fill out JavaCallArguments object | |
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1187 args->iterate( Fingerprinter(method).fingerprint() ); |
| 0 | 1188 // Initialize result type |
| 1189 result->set_type(args->get_ret_type()); | |
| 1190 | |
| 1191 // Invoke the method. Result is returned as oop. | |
| 1192 JavaCalls::call(result, method, &java_args, CHECK); | |
| 1193 | |
| 1194 // Convert result | |
| 1195 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) { | |
| 1196 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject())); | |
| 1197 } | |
| 1198 } | |
| 1199 | |
| 1200 | |
| 1201 static instanceOop alloc_object(jclass clazz, TRAPS) { | |
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1202 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
|
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1203 if (k == NULL) { |
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1204 ResourceMark rm(THREAD); |
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1205 THROW_(vmSymbols::java_lang_InstantiationException(), NULL); |
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1206 } |
| 6983 | 1207 k()->check_valid_for_instantiation(false, CHECK_NULL); |
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1208 InstanceKlass::cast(k())->initialize(CHECK_NULL); |
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1209 instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD); |
| 0 | 1210 return ih; |
| 1211 } | |
| 1212 | |
| 4006 | 1213 DT_RETURN_MARK_DECL(AllocObject, jobject |
| 1214 , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref)); | |
| 0 | 1215 |
| 1216 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz)) | |
| 1217 JNIWrapper("AllocObject"); | |
| 1218 | |
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1219 HOTSPOT_JNI_ALLOCOBJECT_ENTRY(env, clazz); |
| 14380 | 1220 |
| 0 | 1221 jobject ret = NULL; |
| 1222 DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret); | |
| 1223 | |
| 1224 instanceOop i = alloc_object(clazz, CHECK_NULL); | |
| 1225 ret = JNIHandles::make_local(env, i); | |
| 1226 return ret; | |
| 1227 JNI_END | |
| 1228 | |
| 4006 | 1229 DT_RETURN_MARK_DECL(NewObjectA, jobject |
| 1230 , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref)); | |
| 0 | 1231 |
| 1232 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args)) | |
| 1233 JNIWrapper("NewObjectA"); | |
| 14380 | 1234 |
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1235 HOTSPOT_JNI_NEWOBJECTA_ENTRY(env, clazz, (uintptr_t) methodID); |
| 14380 | 1236 |
| 0 | 1237 jobject obj = NULL; |
| 1238 DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj); | |
| 1239 | |
| 1240 instanceOop i = alloc_object(clazz, CHECK_NULL); | |
| 1241 obj = JNIHandles::make_local(env, i); | |
| 1242 JavaValue jvalue(T_VOID); | |
|
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1243 JNI_ArgumentPusherArray ap(methodID, args); |
| 0 | 1244 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| 1245 return obj; | |
| 1246 JNI_END | |
| 1247 | |
| 14380 | 1248 |
| 4006 | 1249 DT_RETURN_MARK_DECL(NewObjectV, jobject |
| 1250 , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref)); | |
| 0 | 1251 |
| 1252 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args)) | |
| 1253 JNIWrapper("NewObjectV"); | |
| 14380 | 1254 |
|
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1255 HOTSPOT_JNI_NEWOBJECTV_ENTRY(env, clazz, (uintptr_t) methodID); |
| 14380 | 1256 |
| 0 | 1257 jobject obj = NULL; |
| 1258 DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj); | |
| 1259 | |
| 1260 instanceOop i = alloc_object(clazz, CHECK_NULL); | |
| 1261 obj = JNIHandles::make_local(env, i); | |
| 1262 JavaValue jvalue(T_VOID); | |
|
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1263 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1264 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| 1265 return obj; | |
| 1266 JNI_END | |
| 1267 | |
| 14380 | 1268 |
| 4006 | 1269 DT_RETURN_MARK_DECL(NewObject, jobject |
| 1270 , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref)); | |
| 0 | 1271 |
| 1272 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...)) | |
| 1273 JNIWrapper("NewObject"); | |
| 14380 | 1274 |
|
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1275 HOTSPOT_JNI_NEWOBJECT_ENTRY(env, clazz, (uintptr_t) methodID); |
| 14380 | 1276 |
| 0 | 1277 jobject obj = NULL; |
| 1278 DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj); | |
| 1279 | |
| 1280 instanceOop i = alloc_object(clazz, CHECK_NULL); | |
| 1281 obj = JNIHandles::make_local(env, i); | |
| 1282 va_list args; | |
| 1283 va_start(args, methodID); | |
| 1284 JavaValue jvalue(T_VOID); | |
|
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1285 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1286 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| 1287 va_end(args); | |
| 1288 return obj; | |
| 1289 JNI_END | |
| 1290 | |
| 1291 | |
| 1292 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj)) | |
| 1293 JNIWrapper("GetObjectClass"); | |
| 14380 | 1294 |
|
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1295 HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(env, obj); |
| 14380 | 1296 |
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1297 Klass* k = JNIHandles::resolve_non_null(obj)->klass(); |
| 0 | 1298 jclass ret = |
| 6983 | 1299 (jclass) JNIHandles::make_local(env, k->java_mirror()); |
| 14380 | 1300 |
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1301 HOTSPOT_JNI_GETOBJECTCLASS_RETURN(ret); |
| 0 | 1302 return ret; |
| 1303 JNI_END | |
| 1304 | |
| 1305 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz)) | |
| 1306 JNIWrapper("IsInstanceOf"); | |
| 14380 | 1307 |
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1308 HOTSPOT_JNI_ISINSTANCEOF_ENTRY(env, obj, clazz); |
| 14380 | 1309 |
| 0 | 1310 jboolean ret = JNI_TRUE; |
| 1311 if (obj != NULL) { | |
| 1312 ret = JNI_FALSE; | |
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1313 Klass* k = java_lang_Class::as_Klass( |
| 0 | 1314 JNIHandles::resolve_non_null(clazz)); |
| 1315 if (k != NULL) { | |
| 1316 ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE; | |
| 1317 } | |
| 1318 } | |
| 14380 | 1319 |
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1320 HOTSPOT_JNI_ISINSTANCEOF_RETURN(ret); |
| 0 | 1321 return ret; |
| 1322 JNI_END | |
| 1323 | |
| 1324 | |
| 1325 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str, | |
| 1326 const char *sig, bool is_static, TRAPS) { | |
| 1327 // %%%% This code should probably just call into a method in the LinkResolver | |
| 1328 // | |
| 1329 // The class should have been loaded (we have an instance of the class | |
| 1330 // passed in) so the method and signature should already be in the symbol | |
| 1331 // table. If they're not there, the method doesn't exist. | |
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1332 const char *name_to_probe = (name_str == NULL) |
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1333 ? vmSymbols::object_initializer_name()->as_C_string() |
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1334 : name_str; |
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1335 TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe)); |
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1336 TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig)); |
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1337 |
|
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1338 if (name == NULL || signature == NULL) { |
| 0 | 1339 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); |
| 1340 } | |
| 1341 | |
| 1342 // Throw a NoSuchMethodError exception if we have an instance of a | |
| 1343 // primitive java.lang.Class | |
| 1344 if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) { | |
| 1345 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); | |
| 1346 } | |
| 1347 | |
| 1348 KlassHandle klass(THREAD, | |
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1349 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| 0 | 1350 |
| 1351 // Make sure class is linked and initialized before handing id's out to | |
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1352 // Method*s. |
| 6983 | 1353 klass()->initialize(CHECK_NULL); |
| 0 | 1354 |
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1355 Method* m; |
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1356 if (name == vmSymbols::object_initializer_name() || |
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1357 name == vmSymbols::class_initializer_name()) { |
| 0 | 1358 // Never search superclasses for constructors |
| 1359 if (klass->oop_is_instance()) { | |
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1360 m = InstanceKlass::cast(klass())->find_method(name, signature); |
| 0 | 1361 } else { |
| 1362 m = NULL; | |
| 1363 } | |
| 1364 } else { | |
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1365 m = klass->lookup_method(name, signature); |
|
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1366 if (m == NULL && klass->oop_is_instance()) { |
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1367 m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature); |
| 0 | 1368 } |
| 1369 } | |
| 1370 if (m == NULL || (m->is_static() != is_static)) { | |
| 1371 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); | |
| 1372 } | |
| 1373 return m->jmethod_id(); | |
| 1374 } | |
| 1375 | |
| 1376 | |
| 1377 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz, | |
| 1378 const char *name, const char *sig)) | |
| 1379 JNIWrapper("GetMethodID"); | |
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1380 HOTSPOT_JNI_GETMETHODID_ENTRY(env, clazz, (char *) name, (char *) sig); |
| 0 | 1381 jmethodID ret = get_method_id(env, clazz, name, sig, false, thread); |
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1382 HOTSPOT_JNI_GETMETHODID_RETURN((uintptr_t) ret); |
| 0 | 1383 return ret; |
| 1384 JNI_END | |
| 1385 | |
| 1386 | |
| 1387 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz, | |
| 1388 const char *name, const char *sig)) | |
| 1389 JNIWrapper("GetStaticMethodID"); | |
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1390 HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(env, (char *) clazz, (char *) name, (char *)sig); |
| 0 | 1391 jmethodID ret = get_method_id(env, clazz, name, sig, true, thread); |
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1392 HOTSPOT_JNI_GETSTATICMETHODID_RETURN((uintptr_t) ret); |
| 0 | 1393 return ret; |
| 1394 JNI_END | |
| 1395 | |
| 1396 | |
| 1397 | |
| 1398 // | |
| 1399 // Calling Methods | |
| 1400 // | |
| 1401 | |
| 4006 | 1402 |
| 1403 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \ | |
| 1404 , EntryProbe, ReturnProbe) \ | |
| 1405 \ | |
| 1406 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \ | |
| 1407 , ReturnProbe); \ | |
| 1408 \ | |
| 1409 JNI_ENTRY(ResultType, \ | |
| 1410 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \ | |
| 1411 JNIWrapper("Call" XSTR(Result) "Method"); \ | |
| 1412 \ | |
| 1413 EntryProbe; \ | |
| 1414 ResultType ret = 0;\ | |
| 1415 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \ | |
| 1416 (const ResultType&)ret);\ | |
| 1417 \ | |
| 1418 va_list args; \ | |
| 1419 va_start(args, methodID); \ | |
| 1420 JavaValue jvalue(Tag); \ | |
| 1421 JNI_ArgumentPusherVaArg ap(methodID, args); \ | |
| 1422 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ | |
| 1423 va_end(args); \ | |
| 1424 ret = jvalue.get_##ResultType(); \ | |
| 1425 return ret;\ | |
| 1426 JNI_END | |
| 1427 | |
| 1428 // the runtime type of subword integral basic types is integer | |
| 1429 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN | |
| 1430 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1431 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref)) | |
| 1432 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE | |
| 1433 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1434 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref)) | |
| 1435 DEFINE_CALLMETHOD(jchar, Char, T_CHAR | |
| 1436 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1437 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref)) | |
| 1438 DEFINE_CALLMETHOD(jshort, Short, T_SHORT | |
| 1439 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1440 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref)) | |
| 1441 | |
| 1442 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT | |
| 1443 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1444 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref)) | |
| 1445 DEFINE_CALLMETHOD(jint, Int, T_INT, | |
| 1446 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1447 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref)) | |
| 1448 DEFINE_CALLMETHOD(jlong, Long, T_LONG | |
| 1449 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1450 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref)) | |
| 1451 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 1452 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT | |
| 1453 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1454 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN()) | |
| 1455 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE | |
| 1456 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), | |
| 1457 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN()) | |
| 1458 | |
| 1459 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \ | |
| 1460 , EntryProbe, ReturnProbe) \ | |
| 1461 \ | |
| 1462 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \ | |
| 1463 , ReturnProbe); \ | |
| 1464 \ | |
| 1465 JNI_ENTRY(ResultType, \ | |
| 1466 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \ | |
| 1467 JNIWrapper("Call" XSTR(Result) "MethodV"); \ | |
| 1468 \ | |
| 1469 EntryProbe;\ | |
| 1470 ResultType ret = 0;\ | |
| 1471 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \ | |
| 1472 (const ResultType&)ret);\ | |
| 1473 \ | |
| 1474 JavaValue jvalue(Tag); \ | |
| 1475 JNI_ArgumentPusherVaArg ap(methodID, args); \ | |
| 1476 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ | |
| 1477 ret = jvalue.get_##ResultType(); \ | |
| 1478 return ret;\ | |
| 1479 JNI_END | |
| 1480 | |
| 1481 // the runtime type of subword integral basic types is integer | |
| 1482 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN | |
|
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1483 , HOTSPOT_JNI_CALLBOOLEANMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1484 HOTSPOT_JNI_CALLBOOLEANMETHODV_RETURN(_ret_ref)) |
| 4006 | 1485 DEFINE_CALLMETHODV(jbyte, Byte, T_BYTE |
|
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1486 , HOTSPOT_JNI_CALLBYTEMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1487 HOTSPOT_JNI_CALLBYTEMETHODV_RETURN(_ret_ref)) |
| 4006 | 1488 DEFINE_CALLMETHODV(jchar, Char, T_CHAR |
|
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1489 , HOTSPOT_JNI_CALLCHARMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
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1490 HOTSPOT_JNI_CALLCHARMETHODV_RETURN(_ret_ref)) |
| 4006 | 1491 DEFINE_CALLMETHODV(jshort, Short, T_SHORT |
|
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1492 , HOTSPOT_JNI_CALLSHORTMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
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1493 HOTSPOT_JNI_CALLSHORTMETHODV_RETURN(_ret_ref)) |
| 4006 | 1494 |
| 1495 DEFINE_CALLMETHODV(jobject, Object, T_OBJECT | |
|
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1496 , HOTSPOT_JNI_CALLOBJECTMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
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1497 HOTSPOT_JNI_CALLOBJECTMETHODV_RETURN(_ret_ref)) |
| 4006 | 1498 DEFINE_CALLMETHODV(jint, Int, T_INT, |
|
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1499 HOTSPOT_JNI_CALLINTMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
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1500 HOTSPOT_JNI_CALLINTMETHODV_RETURN(_ret_ref)) |
| 4006 | 1501 DEFINE_CALLMETHODV(jlong, Long, T_LONG |
|
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1502 , HOTSPOT_JNI_CALLLONGMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
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1503 HOTSPOT_JNI_CALLLONGMETHODV_RETURN(_ret_ref)) |
| 4006 | 1504 // Float and double probes don't return value because dtrace doesn't currently support it |
| 1505 DEFINE_CALLMETHODV(jfloat, Float, T_FLOAT | |
|
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1506 , HOTSPOT_JNI_CALLFLOATMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
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1507 HOTSPOT_JNI_CALLFLOATMETHODV_RETURN()) |
| 4006 | 1508 DEFINE_CALLMETHODV(jdouble, Double, T_DOUBLE |
|
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1509 , HOTSPOT_JNI_CALLDOUBLEMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
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1510 HOTSPOT_JNI_CALLDOUBLEMETHODV_RETURN()) |
| 4006 | 1511 |
| 1512 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \ | |
| 1513 , EntryProbe, ReturnProbe) \ | |
| 1514 \ | |
| 1515 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \ | |
| 1516 , ReturnProbe); \ | |
| 1517 \ | |
| 1518 JNI_ENTRY(ResultType, \ | |
| 1519 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \ | |
| 1520 JNIWrapper("Call" XSTR(Result) "MethodA"); \ | |
| 1521 EntryProbe; \ | |
| 1522 ResultType ret = 0;\ | |
| 1523 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \ | |
| 1524 (const ResultType&)ret);\ | |
| 1525 \ | |
| 1526 JavaValue jvalue(Tag); \ | |
| 1527 JNI_ArgumentPusherArray ap(methodID, args); \ | |
| 1528 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ | |
| 1529 ret = jvalue.get_##ResultType(); \ | |
| 1530 return ret;\ | |
| 1531 JNI_END | |
| 1532 | |
| 1533 // the runtime type of subword integral basic types is integer | |
| 1534 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN | |
|
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1535 , HOTSPOT_JNI_CALLBOOLEANMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1536 HOTSPOT_JNI_CALLBOOLEANMETHODA_RETURN(_ret_ref)) |
| 4006 | 1537 DEFINE_CALLMETHODA(jbyte, Byte, T_BYTE |
|
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1538 , HOTSPOT_JNI_CALLBYTEMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1539 HOTSPOT_JNI_CALLBYTEMETHODA_RETURN(_ret_ref)) |
| 4006 | 1540 DEFINE_CALLMETHODA(jchar, Char, T_CHAR |
|
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1541 , HOTSPOT_JNI_CALLCHARMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1542 HOTSPOT_JNI_CALLCHARMETHODA_RETURN(_ret_ref)) |
| 4006 | 1543 DEFINE_CALLMETHODA(jshort, Short, T_SHORT |
|
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1544 , HOTSPOT_JNI_CALLSHORTMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1545 HOTSPOT_JNI_CALLSHORTMETHODA_RETURN(_ret_ref)) |
| 4006 | 1546 |
| 1547 DEFINE_CALLMETHODA(jobject, Object, T_OBJECT | |
|
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1548 , HOTSPOT_JNI_CALLOBJECTMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1549 HOTSPOT_JNI_CALLOBJECTMETHODA_RETURN(_ret_ref)) |
| 4006 | 1550 DEFINE_CALLMETHODA(jint, Int, T_INT, |
|
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1551 HOTSPOT_JNI_CALLINTMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1552 HOTSPOT_JNI_CALLINTMETHODA_RETURN(_ret_ref)) |
| 4006 | 1553 DEFINE_CALLMETHODA(jlong, Long, T_LONG |
|
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1554 , HOTSPOT_JNI_CALLLONGMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1555 HOTSPOT_JNI_CALLLONGMETHODA_RETURN(_ret_ref)) |
| 4006 | 1556 // Float and double probes don't return value because dtrace doesn't currently support it |
| 1557 DEFINE_CALLMETHODA(jfloat, Float, T_FLOAT | |
|
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1558 , HOTSPOT_JNI_CALLFLOATMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1559 HOTSPOT_JNI_CALLFLOATMETHODA_RETURN()) |
| 4006 | 1560 DEFINE_CALLMETHODA(jdouble, Double, T_DOUBLE |
|
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1561 , HOTSPOT_JNI_CALLDOUBLEMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
|
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1562 HOTSPOT_JNI_CALLDOUBLEMETHODA_RETURN()) |
| 4006 | 1563 |
| 1564 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN()); | |
| 1565 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN()); | |
| 1566 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN()); | |
| 1567 | |
| 1568 | |
| 0 | 1569 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...)) |
| 1570 JNIWrapper("CallVoidMethod"); | |
|
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1571 HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(env, obj, (uintptr_t) methodID); |
| 0 | 1572 DT_VOID_RETURN_MARK(CallVoidMethod); |
| 1573 | |
| 1574 va_list args; | |
| 1575 va_start(args, methodID); | |
| 1576 JavaValue jvalue(T_VOID); | |
|
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1577 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1578 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| 1579 va_end(args); | |
| 1580 JNI_END | |
| 1581 | |
| 1582 | |
| 1583 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) | |
| 1584 JNIWrapper("CallVoidMethodV"); | |
|
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1585 HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(env, obj, (uintptr_t) methodID); |
| 0 | 1586 DT_VOID_RETURN_MARK(CallVoidMethodV); |
| 1587 | |
| 1588 JavaValue jvalue(T_VOID); | |
|
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1589 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1590 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| 1591 JNI_END | |
| 1592 | |
| 1593 | |
| 1594 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) | |
| 1595 JNIWrapper("CallVoidMethodA"); | |
|
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1596 HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(env, obj, (uintptr_t) methodID); |
| 0 | 1597 DT_VOID_RETURN_MARK(CallVoidMethodA); |
| 1598 | |
| 1599 JavaValue jvalue(T_VOID); | |
|
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|
1600 JNI_ArgumentPusherArray ap(methodID, args); |
| 0 | 1601 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| 1602 JNI_END | |
| 1603 | |
| 1604 | |
| 4006 | 1605 |
| 1606 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \ | |
| 1607 , EntryProbe, ReturnProbe) \ | |
| 1608 \ | |
| 1609 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \ | |
| 1610 , ReturnProbe);\ | |
| 1611 \ | |
| 1612 JNI_ENTRY(ResultType, \ | |
| 1613 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \ | |
| 1614 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \ | |
| 1615 \ | |
| 1616 EntryProbe;\ | |
| 1617 ResultType ret;\ | |
| 1618 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \ | |
| 1619 (const ResultType&)ret);\ | |
| 1620 \ | |
| 1621 va_list args; \ | |
| 1622 va_start(args, methodID); \ | |
| 1623 JavaValue jvalue(Tag); \ | |
| 1624 JNI_ArgumentPusherVaArg ap(methodID, args); \ | |
| 1625 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ | |
| 1626 va_end(args); \ | |
| 1627 ret = jvalue.get_##ResultType(); \ | |
| 1628 return ret;\ | |
| 1629 JNI_END | |
| 1630 | |
| 1631 // the runtime type of subword integral basic types is integer | |
| 1632 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN | |
| 1633 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1634 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref)) | |
| 1635 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE | |
| 1636 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1637 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref)) | |
| 1638 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR | |
| 1639 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1640 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref)) | |
| 1641 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT | |
| 1642 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1643 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref)) | |
| 1644 | |
| 1645 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT | |
| 1646 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1647 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref)) | |
| 1648 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT | |
| 1649 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1650 HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref)) | |
| 1651 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG | |
| 1652 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1653 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 1654 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref)) | |
| 1655 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT | |
| 1656 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1657 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN()) | |
| 1658 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE | |
| 1659 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1660 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN()) | |
| 1661 | |
| 1662 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \ | |
| 1663 , EntryProbe, ReturnProbe) \ | |
| 1664 \ | |
| 1665 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \ | |
| 1666 , ReturnProbe);\ | |
| 1667 \ | |
| 1668 JNI_ENTRY(ResultType, \ | |
| 1669 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \ | |
| 1670 JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \ | |
| 1671 \ | |
| 1672 EntryProbe;\ | |
| 1673 ResultType ret;\ | |
| 1674 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \ | |
| 1675 (const ResultType&)ret);\ | |
| 1676 \ | |
| 1677 JavaValue jvalue(Tag); \ | |
| 1678 JNI_ArgumentPusherVaArg ap(methodID, args); \ | |
| 1679 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ | |
| 1680 ret = jvalue.get_##ResultType(); \ | |
| 1681 return ret;\ | |
| 1682 JNI_END | |
| 1683 | |
| 1684 // the runtime type of subword integral basic types is integer | |
| 1685 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN | |
| 1686 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1687 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref)) | |
| 1688 DEFINE_CALLNONVIRTUALMETHODV(jbyte, Byte, T_BYTE | |
| 1689 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1690 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref)) | |
| 1691 DEFINE_CALLNONVIRTUALMETHODV(jchar, Char, T_CHAR | |
| 1692 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1693 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref)) | |
| 1694 DEFINE_CALLNONVIRTUALMETHODV(jshort, Short, T_SHORT | |
| 1695 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1696 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref)) | |
| 1697 | |
| 1698 DEFINE_CALLNONVIRTUALMETHODV(jobject, Object, T_OBJECT | |
| 1699 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1700 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref)) | |
| 1701 DEFINE_CALLNONVIRTUALMETHODV(jint, Int, T_INT | |
| 1702 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1703 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref)) | |
| 1704 DEFINE_CALLNONVIRTUALMETHODV(jlong, Long, T_LONG | |
| 1705 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1706 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 1707 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref)) | |
| 1708 DEFINE_CALLNONVIRTUALMETHODV(jfloat, Float, T_FLOAT | |
| 1709 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1710 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN()) | |
| 1711 DEFINE_CALLNONVIRTUALMETHODV(jdouble, Double, T_DOUBLE | |
| 1712 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1713 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN()) | |
| 1714 | |
| 1715 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \ | |
| 1716 , EntryProbe, ReturnProbe) \ | |
| 1717 \ | |
| 1718 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \ | |
| 1719 , ReturnProbe);\ | |
| 1720 \ | |
| 1721 JNI_ENTRY(ResultType, \ | |
| 1722 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \ | |
| 1723 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \ | |
| 1724 \ | |
| 1725 EntryProbe;\ | |
| 1726 ResultType ret;\ | |
| 1727 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \ | |
| 1728 (const ResultType&)ret);\ | |
| 1729 \ | |
| 1730 JavaValue jvalue(Tag); \ | |
| 1731 JNI_ArgumentPusherArray ap(methodID, args); \ | |
| 1732 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ | |
| 1733 ret = jvalue.get_##ResultType(); \ | |
| 1734 return ret;\ | |
| 1735 JNI_END | |
| 1736 | |
| 1737 // the runtime type of subword integral basic types is integer | |
| 1738 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN | |
| 1739 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1740 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref)) | |
| 1741 DEFINE_CALLNONVIRTUALMETHODA(jbyte, Byte, T_BYTE | |
| 1742 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1743 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref)) | |
| 1744 DEFINE_CALLNONVIRTUALMETHODA(jchar, Char, T_CHAR | |
| 1745 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1746 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref)) | |
| 1747 DEFINE_CALLNONVIRTUALMETHODA(jshort, Short, T_SHORT | |
| 1748 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1749 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref)) | |
| 1750 | |
| 1751 DEFINE_CALLNONVIRTUALMETHODA(jobject, Object, T_OBJECT | |
| 1752 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1753 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref)) | |
| 1754 DEFINE_CALLNONVIRTUALMETHODA(jint, Int, T_INT | |
| 1755 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1756 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref)) | |
| 1757 DEFINE_CALLNONVIRTUALMETHODA(jlong, Long, T_LONG | |
| 1758 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1759 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 1760 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref)) | |
| 1761 DEFINE_CALLNONVIRTUALMETHODA(jfloat, Float, T_FLOAT | |
| 1762 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1763 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN()) | |
| 1764 DEFINE_CALLNONVIRTUALMETHODA(jdouble, Double, T_DOUBLE | |
| 1765 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), | |
| 1766 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN()) | |
| 1767 | |
| 1768 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod | |
| 1769 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN()); | |
| 1770 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV | |
| 1771 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN()); | |
| 1772 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA | |
| 1773 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN()); | |
| 1774 | |
| 0 | 1775 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) |
| 1776 JNIWrapper("CallNonvirtualVoidMethod"); | |
| 1777 | |
|
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1778 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(env, obj, cls, (uintptr_t) methodID); |
| 0 | 1779 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod); |
| 1780 | |
| 1781 va_list args; | |
| 1782 va_start(args, methodID); | |
| 1783 JavaValue jvalue(T_VOID); | |
|
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1784 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1785 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| 1786 va_end(args); | |
| 1787 JNI_END | |
| 1788 | |
| 1789 | |
| 1790 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) | |
| 1791 JNIWrapper("CallNonvirtualVoidMethodV"); | |
| 1792 | |
| 4006 | 1793 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY( |
| 1794 env, obj, cls, (uintptr_t) methodID); | |
| 0 | 1795 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV); |
| 1796 | |
| 1797 JavaValue jvalue(T_VOID); | |
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1798 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1799 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| 1800 JNI_END | |
| 1801 | |
| 1802 | |
| 1803 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) | |
| 1804 JNIWrapper("CallNonvirtualVoidMethodA"); | |
| 4006 | 1805 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY( |
| 1806 env, obj, cls, (uintptr_t) methodID); | |
| 0 | 1807 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA); |
| 1808 JavaValue jvalue(T_VOID); | |
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1809 JNI_ArgumentPusherArray ap(methodID, args); |
| 0 | 1810 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| 1811 JNI_END | |
| 1812 | |
| 1813 | |
| 4006 | 1814 |
| 1815 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \ | |
| 1816 , EntryProbe, ResultProbe) \ | |
| 1817 \ | |
| 1818 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \ | |
| 1819 , ResultProbe); \ | |
| 1820 \ | |
| 1821 JNI_ENTRY(ResultType, \ | |
| 1822 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \ | |
| 1823 JNIWrapper("CallStatic" XSTR(Result) "Method"); \ | |
| 1824 \ | |
| 1825 EntryProbe; \ | |
| 1826 ResultType ret = 0;\ | |
| 1827 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \ | |
| 1828 (const ResultType&)ret);\ | |
| 1829 \ | |
| 1830 va_list args; \ | |
| 1831 va_start(args, methodID); \ | |
| 1832 JavaValue jvalue(Tag); \ | |
| 1833 JNI_ArgumentPusherVaArg ap(methodID, args); \ | |
| 1834 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ | |
| 1835 va_end(args); \ | |
| 1836 ret = jvalue.get_##ResultType(); \ | |
| 1837 return ret;\ | |
| 1838 JNI_END | |
| 1839 | |
| 1840 // the runtime type of subword integral basic types is integer | |
| 1841 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN | |
| 1842 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1843 HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref)); | |
| 1844 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE | |
| 1845 , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1846 HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref)); | |
| 1847 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR | |
| 1848 , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1849 HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref)); | |
| 1850 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT | |
| 1851 , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1852 HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref)); | |
| 1853 | |
| 1854 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT | |
| 1855 , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1856 HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref)); | |
| 1857 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT | |
| 1858 , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1859 HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref)); | |
| 1860 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG | |
| 1861 , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1862 HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref)); | |
| 1863 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 1864 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT | |
| 1865 , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1866 HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN()); | |
| 1867 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE | |
| 1868 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1869 HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN()); | |
| 1870 | |
| 1871 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \ | |
| 1872 , EntryProbe, ResultProbe) \ | |
| 1873 \ | |
| 1874 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \ | |
| 1875 , ResultProbe); \ | |
| 1876 \ | |
| 1877 JNI_ENTRY(ResultType, \ | |
| 1878 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \ | |
| 1879 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \ | |
| 1880 \ | |
| 1881 EntryProbe; \ | |
| 1882 ResultType ret = 0;\ | |
| 1883 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \ | |
| 1884 (const ResultType&)ret);\ | |
| 1885 \ | |
| 1886 JavaValue jvalue(Tag); \ | |
| 1887 JNI_ArgumentPusherVaArg ap(methodID, args); \ | |
| 1888 /* Make sure class is initialized before trying to invoke its method */ \ | |
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1889 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \ |
| 6983 | 1890 k()->initialize(CHECK_0); \ |
| 4006 | 1891 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| 1892 va_end(args); \ | |
| 1893 ret = jvalue.get_##ResultType(); \ | |
| 1894 return ret;\ | |
| 1895 JNI_END | |
| 1896 | |
| 1897 // the runtime type of subword integral basic types is integer | |
| 1898 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN | |
| 1899 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1900 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref)); | |
| 1901 DEFINE_CALLSTATICMETHODV(jbyte, Byte, T_BYTE | |
| 1902 , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1903 HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref)); | |
| 1904 DEFINE_CALLSTATICMETHODV(jchar, Char, T_CHAR | |
| 1905 , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1906 HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref)); | |
| 1907 DEFINE_CALLSTATICMETHODV(jshort, Short, T_SHORT | |
| 1908 , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1909 HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref)); | |
| 1910 | |
| 1911 DEFINE_CALLSTATICMETHODV(jobject, Object, T_OBJECT | |
| 1912 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1913 HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref)); | |
| 1914 DEFINE_CALLSTATICMETHODV(jint, Int, T_INT | |
| 1915 , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1916 HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref)); | |
| 1917 DEFINE_CALLSTATICMETHODV(jlong, Long, T_LONG | |
| 1918 , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1919 HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref)); | |
| 1920 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 1921 DEFINE_CALLSTATICMETHODV(jfloat, Float, T_FLOAT | |
| 1922 , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1923 HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN()); | |
| 1924 DEFINE_CALLSTATICMETHODV(jdouble, Double, T_DOUBLE | |
| 1925 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1926 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN()); | |
| 1927 | |
| 1928 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \ | |
| 1929 , EntryProbe, ResultProbe) \ | |
| 1930 \ | |
| 1931 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \ | |
| 1932 , ResultProbe); \ | |
| 1933 \ | |
| 1934 JNI_ENTRY(ResultType, \ | |
| 1935 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \ | |
| 1936 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \ | |
| 1937 \ | |
| 1938 EntryProbe; \ | |
| 1939 ResultType ret = 0;\ | |
| 1940 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \ | |
| 1941 (const ResultType&)ret);\ | |
| 1942 \ | |
| 1943 JavaValue jvalue(Tag); \ | |
| 1944 JNI_ArgumentPusherArray ap(methodID, args); \ | |
| 1945 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ | |
| 1946 ret = jvalue.get_##ResultType(); \ | |
| 1947 return ret;\ | |
| 1948 JNI_END | |
| 1949 | |
| 1950 // the runtime type of subword integral basic types is integer | |
| 1951 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN | |
| 1952 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1953 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref)); | |
| 1954 DEFINE_CALLSTATICMETHODA(jbyte, Byte, T_BYTE | |
| 1955 , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1956 HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref)); | |
| 1957 DEFINE_CALLSTATICMETHODA(jchar, Char, T_CHAR | |
| 1958 , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1959 HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref)); | |
| 1960 DEFINE_CALLSTATICMETHODA(jshort, Short, T_SHORT | |
| 1961 , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1962 HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref)); | |
| 1963 | |
| 1964 DEFINE_CALLSTATICMETHODA(jobject, Object, T_OBJECT | |
| 1965 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1966 HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref)); | |
| 1967 DEFINE_CALLSTATICMETHODA(jint, Int, T_INT | |
| 1968 , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1969 HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref)); | |
| 1970 DEFINE_CALLSTATICMETHODA(jlong, Long, T_LONG | |
| 1971 , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1972 HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref)); | |
| 1973 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 1974 DEFINE_CALLSTATICMETHODA(jfloat, Float, T_FLOAT | |
| 1975 , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1976 HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN()); | |
| 1977 DEFINE_CALLSTATICMETHODA(jdouble, Double, T_DOUBLE | |
| 1978 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID), | |
| 1979 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN()); | |
| 1980 | |
| 1981 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod | |
| 1982 , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN()); | |
| 1983 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV | |
| 1984 , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN()); | |
| 1985 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA | |
| 1986 , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN()); | |
| 1987 | |
| 0 | 1988 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...)) |
| 1989 JNIWrapper("CallStaticVoidMethod"); | |
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1990 HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(env, cls, (uintptr_t) methodID); |
| 0 | 1991 DT_VOID_RETURN_MARK(CallStaticVoidMethod); |
| 1992 | |
| 1993 va_list args; | |
| 1994 va_start(args, methodID); | |
| 1995 JavaValue jvalue(T_VOID); | |
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1996 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1997 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| 1998 va_end(args); | |
| 1999 JNI_END | |
| 2000 | |
| 2001 | |
| 2002 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) | |
| 2003 JNIWrapper("CallStaticVoidMethodV"); | |
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2004 HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(env, cls, (uintptr_t) methodID); |
| 0 | 2005 DT_VOID_RETURN_MARK(CallStaticVoidMethodV); |
| 2006 | |
| 2007 JavaValue jvalue(T_VOID); | |
|
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2008 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 2009 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| 2010 JNI_END | |
| 2011 | |
| 2012 | |
| 2013 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) | |
| 2014 JNIWrapper("CallStaticVoidMethodA"); | |
|
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2015 HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(env, cls, (uintptr_t) methodID); |
| 0 | 2016 DT_VOID_RETURN_MARK(CallStaticVoidMethodA); |
| 2017 | |
| 2018 JavaValue jvalue(T_VOID); | |
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2019 JNI_ArgumentPusherArray ap(methodID, args); |
| 0 | 2020 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| 2021 JNI_END | |
| 2022 | |
| 2023 | |
| 2024 // | |
| 2025 // Accessing Fields | |
| 2026 // | |
| 2027 | |
| 2028 | |
| 4006 | 2029 DT_RETURN_MARK_DECL(GetFieldID, jfieldID |
| 2030 , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref)); | |
| 0 | 2031 |
| 2032 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz, | |
| 2033 const char *name, const char *sig)) | |
| 2034 JNIWrapper("GetFieldID"); | |
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2035 HOTSPOT_JNI_GETFIELDID_ENTRY(env, clazz, (char *) name, (char *) sig); |
| 0 | 2036 jfieldID ret = 0; |
| 2037 DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret); | |
| 2038 | |
| 2039 // The class should have been loaded (we have an instance of the class | |
| 2040 // passed in) so the field and signature should already be in the symbol | |
| 2041 // table. If they're not there, the field doesn't exist. | |
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2042 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name)); |
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2043 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig)); |
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2044 if (fieldname == NULL || signame == NULL) { |
| 0 | 2045 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| 2046 } | |
| 2047 KlassHandle k(THREAD, | |
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2048 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| 0 | 2049 // Make sure class is initialized before handing id's out to fields |
| 6983 | 2050 k()->initialize(CHECK_NULL); |
| 0 | 2051 |
| 2052 fieldDescriptor fd; | |
| 6983 | 2053 if (!k()->oop_is_instance() || |
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2054 !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) { |
| 0 | 2055 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| 2056 } | |
| 2057 | |
| 2058 // A jfieldID for a non-static field is simply the offset of the field within the instanceOop | |
| 2059 // It may also have hash bits for k, if VerifyJNIFields is turned on. | |
| 2060 ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset()); | |
| 2061 return ret; | |
| 2062 JNI_END | |
| 2063 | |
| 2064 | |
| 2065 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID)) | |
| 2066 JNIWrapper("GetObjectField"); | |
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2067 HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(env, obj, (uintptr_t) fieldID); |
| 0 | 2068 oop o = JNIHandles::resolve_non_null(obj); |
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2069 Klass* k = o->klass(); |
| 0 | 2070 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); |
| 2071 // Keep JVMTI addition small and only check enabled flag here. | |
| 2072 // jni_GetField_probe() assumes that is okay to create handles. | |
| 2073 if (JvmtiExport::should_post_field_access()) { | |
| 2074 o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false); | |
| 2075 } | |
| 2076 jobject ret = JNIHandles::make_local(env, o->obj_field(offset)); | |
|
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2077 #if INCLUDE_ALL_GCS |
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2078 // If G1 is enabled and we are accessing the value of the referent |
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2079 // field in a reference object then we need to register a non-null |
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2080 // referent with the SATB barrier. |
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2081 if (UseG1GC) { |
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2082 bool needs_barrier = false; |
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2083 |
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2084 if (ret != NULL && |
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2085 offset == java_lang_ref_Reference::referent_offset && |
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2086 InstanceKlass::cast(k)->reference_type() != REF_NONE) { |
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2087 assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity"); |
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2088 needs_barrier = true; |
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2089 } |
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2090 |
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2091 if (needs_barrier) { |
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2092 oop referent = JNIHandles::resolve(ret); |
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2093 G1SATBCardTableModRefBS::enqueue(referent); |
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2094 } |
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2095 } |
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2096 #endif // INCLUDE_ALL_GCS |
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2097 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(ret); |
| 0 | 2098 return ret; |
| 2099 JNI_END | |
| 2100 | |
| 2101 | |
| 4006 | 2102 |
| 2103 #define DEFINE_GETFIELD(Return,Fieldname,Result \ | |
| 2104 , EntryProbe, ReturnProbe) \ | |
| 2105 \ | |
| 2106 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \ | |
| 2107 , ReturnProbe); \ | |
| 2108 \ | |
| 2109 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \ | |
| 2110 JNIWrapper("Get" XSTR(Result) "Field"); \ | |
| 2111 \ | |
| 2112 EntryProbe; \ | |
| 2113 Return ret = 0;\ | |
| 2114 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\ | |
| 2115 \ | |
| 2116 oop o = JNIHandles::resolve_non_null(obj); \ | |
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2117 Klass* k = o->klass(); \ |
| 4006 | 2118 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ |
| 2119 /* Keep JVMTI addition small and only check enabled flag here. */ \ | |
| 2120 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \ | |
| 2121 /* and creates a ResetNoHandleMark. */ \ | |
| 2122 if (JvmtiExport::should_post_field_access()) { \ | |
| 2123 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \ | |
| 2124 } \ | |
| 2125 ret = o->Fieldname##_field(offset); \ | |
| 2126 return ret; \ | |
| 2127 JNI_END | |
| 2128 | |
| 2129 DEFINE_GETFIELD(jboolean, bool, Boolean | |
| 2130 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2131 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref)) | |
| 2132 DEFINE_GETFIELD(jbyte, byte, Byte | |
| 2133 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2134 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref)) | |
| 2135 DEFINE_GETFIELD(jchar, char, Char | |
| 2136 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2137 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref)) | |
| 2138 DEFINE_GETFIELD(jshort, short, Short | |
| 2139 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2140 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref)) | |
| 2141 DEFINE_GETFIELD(jint, int, Int | |
| 2142 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2143 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref)) | |
| 2144 DEFINE_GETFIELD(jlong, long, Long | |
| 2145 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2146 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref)) | |
| 2147 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 2148 DEFINE_GETFIELD(jfloat, float, Float | |
| 2149 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2150 HOTSPOT_JNI_GETFLOATFIELD_RETURN()) | |
| 2151 DEFINE_GETFIELD(jdouble, double, Double | |
| 2152 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2153 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN()) | |
| 2154 | |
| 0 | 2155 address jni_GetBooleanField_addr() { |
| 2156 return (address)jni_GetBooleanField; | |
| 2157 } | |
| 2158 address jni_GetByteField_addr() { | |
| 2159 return (address)jni_GetByteField; | |
| 2160 } | |
| 2161 address jni_GetCharField_addr() { | |
| 2162 return (address)jni_GetCharField; | |
| 2163 } | |
| 2164 address jni_GetShortField_addr() { | |
| 2165 return (address)jni_GetShortField; | |
| 2166 } | |
| 2167 address jni_GetIntField_addr() { | |
| 2168 return (address)jni_GetIntField; | |
| 2169 } | |
| 2170 address jni_GetLongField_addr() { | |
| 2171 return (address)jni_GetLongField; | |
| 2172 } | |
| 2173 address jni_GetFloatField_addr() { | |
| 2174 return (address)jni_GetFloatField; | |
| 2175 } | |
| 2176 address jni_GetDoubleField_addr() { | |
| 2177 return (address)jni_GetDoubleField; | |
| 2178 } | |
| 2179 | |
| 2180 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value)) | |
| 2181 JNIWrapper("SetObjectField"); | |
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2182 HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(env, obj, (uintptr_t) fieldID, value); |
| 0 | 2183 oop o = JNIHandles::resolve_non_null(obj); |
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2184 Klass* k = o->klass(); |
| 0 | 2185 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); |
| 2186 // Keep JVMTI addition small and only check enabled flag here. | |
| 2187 // jni_SetField_probe_nh() assumes that is not okay to create handles | |
| 2188 // and creates a ResetNoHandleMark. | |
| 2189 if (JvmtiExport::should_post_field_modification()) { | |
| 2190 jvalue field_value; | |
| 2191 field_value.l = value; | |
| 2192 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value); | |
| 2193 } | |
| 2194 o->obj_field_put(offset, JNIHandles::resolve(value)); | |
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2195 HOTSPOT_JNI_SETOBJECTFIELD_RETURN(); |
| 0 | 2196 JNI_END |
| 2197 | |
| 4006 | 2198 |
| 2199 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \ | |
| 2200 , EntryProbe, ReturnProbe) \ | |
| 2201 \ | |
| 2202 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \ | |
| 2203 JNIWrapper("Set" XSTR(Result) "Field"); \ | |
| 2204 \ | |
| 2205 EntryProbe; \ | |
| 2206 \ | |
| 2207 oop o = JNIHandles::resolve_non_null(obj); \ | |
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2208 Klass* k = o->klass(); \ |
| 4006 | 2209 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ |
| 2210 /* Keep JVMTI addition small and only check enabled flag here. */ \ | |
| 2211 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \ | |
| 2212 /* and creates a ResetNoHandleMark. */ \ | |
| 2213 if (JvmtiExport::should_post_field_modification()) { \ | |
| 2214 jvalue field_value; \ | |
| 2215 field_value.unionType = value; \ | |
| 2216 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \ | |
| 2217 } \ | |
| 2218 o->Fieldname##_field_put(offset, value); \ | |
| 2219 ReturnProbe; \ | |
| 2220 JNI_END | |
| 2221 | |
| 2222 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z | |
| 2223 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), | |
| 2224 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN()) | |
| 2225 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b | |
| 2226 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), | |
| 2227 HOTSPOT_JNI_SETBYTEFIELD_RETURN()) | |
| 2228 DEFINE_SETFIELD(jchar, char, Char, 'C', c | |
| 2229 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), | |
| 2230 HOTSPOT_JNI_SETCHARFIELD_RETURN()) | |
| 2231 DEFINE_SETFIELD(jshort, short, Short, 'S', s | |
| 2232 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), | |
| 2233 HOTSPOT_JNI_SETSHORTFIELD_RETURN()) | |
| 2234 DEFINE_SETFIELD(jint, int, Int, 'I', i | |
| 2235 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), | |
| 2236 HOTSPOT_JNI_SETINTFIELD_RETURN()) | |
| 2237 DEFINE_SETFIELD(jlong, long, Long, 'J', j | |
| 2238 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), | |
| 2239 HOTSPOT_JNI_SETLONGFIELD_RETURN()) | |
| 2240 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 2241 DEFINE_SETFIELD(jfloat, float, Float, 'F', f | |
| 2242 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2243 HOTSPOT_JNI_SETFLOATFIELD_RETURN()) | |
| 2244 DEFINE_SETFIELD(jdouble, double, Double, 'D', d | |
| 2245 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), | |
| 2246 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN()) | |
| 14380 | 2247 |
| 4006 | 2248 DT_RETURN_MARK_DECL(ToReflectedField, jobject |
| 2249 , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref)); | |
| 0 | 2250 |
| 2251 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic)) | |
| 2252 JNIWrapper("ToReflectedField"); | |
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2253 HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(env, cls, (uintptr_t) fieldID, isStatic); |
| 0 | 2254 jobject ret = NULL; |
| 2255 DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret); | |
| 2256 | |
| 2257 fieldDescriptor fd; | |
| 2258 bool found = false; | |
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2259 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls)); |
| 0 | 2260 |
| 2261 assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID"); | |
| 2262 | |
| 2263 if (isStatic) { | |
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2264 // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*. |
| 0 | 2265 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); |
| 2266 assert(id->is_static_field_id(), "invalid static field id"); | |
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2267 found = id->find_local_field(&fd); |
| 0 | 2268 } else { |
| 2269 // Non-static field. The fieldID is really the offset of the field within the instanceOop. | |
| 2270 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); | |
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2271 found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd); |
| 0 | 2272 } |
| 2273 assert(found, "bad fieldID passed into jni_ToReflectedField"); | |
| 2274 oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL); | |
| 2275 ret = JNIHandles::make_local(env, reflected); | |
| 2276 return ret; | |
| 2277 JNI_END | |
| 2278 | |
| 2279 | |
| 2280 // | |
| 2281 // Accessing Static Fields | |
| 2282 // | |
| 4006 | 2283 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID |
| 2284 , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref)); | |
| 0 | 2285 |
| 2286 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz, | |
| 2287 const char *name, const char *sig)) | |
| 2288 JNIWrapper("GetStaticFieldID"); | |
|
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|
2289 HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(env, clazz, (char *) name, (char *) sig); |
| 0 | 2290 jfieldID ret = NULL; |
| 2291 DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret); | |
| 2292 | |
| 2293 // The class should have been loaded (we have an instance of the class | |
| 2294 // passed in) so the field and signature should already be in the symbol | |
| 2295 // table. If they're not there, the field doesn't exist. | |
|
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|
2296 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name)); |
|
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|
2297 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig)); |
|
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|
2298 if (fieldname == NULL || signame == NULL) { |
| 0 | 2299 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| 2300 } | |
| 2301 KlassHandle k(THREAD, | |
|
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2302 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| 0 | 2303 // Make sure class is initialized before handing id's out to static fields |
| 6983 | 2304 k()->initialize(CHECK_NULL); |
| 0 | 2305 |
| 2306 fieldDescriptor fd; | |
| 6983 | 2307 if (!k()->oop_is_instance() || |
|
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|
2308 !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) { |
| 0 | 2309 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| 2310 } | |
| 2311 | |
|
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|
2312 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass* |
|
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|
2313 JNIid* id = fd.field_holder()->jni_id_for(fd.offset()); |
| 0 | 2314 debug_only(id->set_is_static_field_id();) |
| 2315 | |
|
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|
2316 debug_only(id->verify(fd.field_holder())); |
| 0 | 2317 |
| 2318 ret = jfieldIDWorkaround::to_static_jfieldID(id); | |
| 2319 return ret; | |
| 2320 JNI_END | |
| 2321 | |
| 2322 | |
| 2323 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID)) | |
| 2324 JNIWrapper("GetStaticObjectField"); | |
|
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2325 HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID); |
|
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|
2326 #if INCLUDE_JNI_CHECK |
|
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2327 DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);) |
|
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|
2328 #endif // INCLUDE_JNI_CHECK |
| 0 | 2329 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); |
| 2330 assert(id->is_static_field_id(), "invalid static field id"); | |
| 2331 // Keep JVMTI addition small and only check enabled flag here. | |
| 2332 // jni_GetField_probe() assumes that is okay to create handles. | |
| 2333 if (JvmtiExport::should_post_field_access()) { | |
| 2334 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); | |
| 2335 } | |
|
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2336 jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset())); |
|
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|
2337 HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(ret); |
| 0 | 2338 return ret; |
| 2339 JNI_END | |
| 2340 | |
| 4006 | 2341 |
| 2342 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \ | |
| 2343 , EntryProbe, ReturnProbe) \ | |
| 2344 \ | |
| 2345 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \ | |
| 2346 , ReturnProbe); \ | |
| 2347 \ | |
| 2348 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \ | |
| 2349 JNIWrapper("GetStatic" XSTR(Result) "Field"); \ | |
| 2350 EntryProbe; \ | |
| 2351 Return ret = 0;\ | |
| 2352 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \ | |
| 2353 (const Return&)ret);\ | |
| 2354 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ | |
| 2355 assert(id->is_static_field_id(), "invalid static field id"); \ | |
| 2356 /* Keep JVMTI addition small and only check enabled flag here. */ \ | |
| 2357 /* jni_GetField_probe() assumes that is okay to create handles. */ \ | |
| 2358 if (JvmtiExport::should_post_field_access()) { \ | |
| 2359 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \ | |
| 2360 } \ | |
| 2361 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \ | |
| 2362 return ret;\ | |
| 2363 JNI_END | |
| 2364 | |
| 2365 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean | |
| 2366 , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref)) | |
| 2367 DEFINE_GETSTATICFIELD(jbyte, byte, Byte | |
| 2368 , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref) ) | |
| 2369 DEFINE_GETSTATICFIELD(jchar, char, Char | |
| 2370 , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref) ) | |
| 2371 DEFINE_GETSTATICFIELD(jshort, short, Short | |
| 2372 , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref) ) | |
| 2373 DEFINE_GETSTATICFIELD(jint, int, Int | |
| 2374 , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref) ) | |
| 2375 DEFINE_GETSTATICFIELD(jlong, long, Long | |
| 2376 , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref) ) | |
| 2377 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 2378 DEFINE_GETSTATICFIELD(jfloat, float, Float | |
| 2379 , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN() ) | |
| 2380 DEFINE_GETSTATICFIELD(jdouble, double, Double | |
| 2381 , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN() ) | |
| 0 | 2382 |
| 2383 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value)) | |
| 2384 JNIWrapper("SetStaticObjectField"); | |
|
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2385 HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value); |
| 0 | 2386 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); |
| 2387 assert(id->is_static_field_id(), "invalid static field id"); | |
| 2388 // Keep JVMTI addition small and only check enabled flag here. | |
| 2389 // jni_SetField_probe() assumes that is okay to create handles. | |
| 2390 if (JvmtiExport::should_post_field_modification()) { | |
| 2391 jvalue field_value; | |
| 2392 field_value.l = value; | |
| 2393 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value); | |
| 2394 } | |
|
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|
2395 id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value)); |
|
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|
2396 HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(); |
| 0 | 2397 JNI_END |
| 2398 | |
| 2399 | |
| 4006 | 2400 |
| 2401 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \ | |
| 2402 , EntryProbe, ReturnProbe) \ | |
| 2403 \ | |
| 2404 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \ | |
| 2405 JNIWrapper("SetStatic" XSTR(Result) "Field"); \ | |
| 2406 EntryProbe; \ | |
| 2407 \ | |
| 2408 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ | |
| 2409 assert(id->is_static_field_id(), "invalid static field id"); \ | |
| 2410 /* Keep JVMTI addition small and only check enabled flag here. */ \ | |
| 2411 /* jni_SetField_probe() assumes that is okay to create handles. */ \ | |
| 2412 if (JvmtiExport::should_post_field_modification()) { \ | |
| 2413 jvalue field_value; \ | |
| 2414 field_value.unionType = value; \ | |
| 2415 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \ | |
| 2416 } \ | |
| 2417 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \ | |
| 2418 ReturnProbe;\ | |
| 2419 JNI_END | |
| 2420 | |
| 2421 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z | |
|
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|
2422 , HOTSPOT_JNI_SETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value), |
| 4006 | 2423 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN()) |
| 2424 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b | |
| 2425 , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), | |
| 2426 HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN()) | |
| 2427 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c | |
| 2428 , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), | |
| 2429 HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN()) | |
| 2430 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s | |
| 2431 , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), | |
| 2432 HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN()) | |
| 2433 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i | |
| 2434 , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), | |
| 2435 HOTSPOT_JNI_SETSTATICINTFIELD_RETURN()) | |
| 2436 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j | |
| 2437 , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), | |
| 2438 HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN()) | |
| 2439 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 2440 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f | |
| 2441 , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), | |
| 2442 HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN()) | |
| 2443 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d | |
| 2444 , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), | |
| 2445 HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN()) | |
| 0 | 2446 |
| 2447 // | |
| 2448 // String Operations | |
| 2449 // | |
| 2450 | |
| 2451 // Unicode Interface | |
| 2452 | |
| 4006 | 2453 DT_RETURN_MARK_DECL(NewString, jstring |
| 2454 , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref)); | |
| 0 | 2455 |
| 2456 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len)) | |
| 2457 JNIWrapper("NewString"); | |
|
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|
2458 HOTSPOT_JNI_NEWSTRING_ENTRY(env, (uint16_t *) unicodeChars, len); |
| 0 | 2459 jstring ret = NULL; |
| 2460 DT_RETURN_MARK(NewString, jstring, (const jstring&)ret); | |
| 2461 oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL); | |
| 2462 ret = (jstring) JNIHandles::make_local(env, string); | |
| 2463 return ret; | |
| 2464 JNI_END | |
| 2465 | |
| 2466 | |
| 2467 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string)) | |
| 2468 JNIWrapper("GetStringLength"); | |
|
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|
2469 HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(env, string); |
|
12819
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|
2470 jsize ret = 0; |
|
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|
2471 oop s = JNIHandles::resolve_non_null(string); |
|
f9be370a7d54
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|
2472 if (java_lang_String::value(s) != NULL) { |
|
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|
2473 ret = java_lang_String::length(s); |
|
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|
2474 } |
|
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|
2475 HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(ret); |
| 0 | 2476 return ret; |
| 2477 JNI_END | |
| 2478 | |
| 2479 | |
| 2480 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars( | |
| 2481 JNIEnv *env, jstring string, jboolean *isCopy)) | |
| 2482 JNIWrapper("GetStringChars"); | |
|
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|
2483 HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(env, string, (uintptr_t *) isCopy); |
|
12819
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|
2484 jchar* buf = NULL; |
| 0 | 2485 oop s = JNIHandles::resolve_non_null(string); |
| 2486 typeArrayOop s_value = java_lang_String::value(s); | |
|
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|
2487 if (s_value != NULL) { |
|
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|
2488 int s_len = java_lang_String::length(s); |
|
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|
2489 int s_offset = java_lang_String::offset(s); |
|
f9be370a7d54
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|
2490 buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal); // add one for zero termination |
|
f9be370a7d54
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|
2491 /* JNI Specification states return NULL on OOM */ |
|
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|
2492 if (buf != NULL) { |
|
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|
2493 if (s_len > 0) { |
|
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|
2494 memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len); |
|
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|
2495 } |
|
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|
2496 buf[s_len] = 0; |
|
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|
2497 //%note jni_5 |
|
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|
2498 if (isCopy != NULL) { |
|
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|
2499 *isCopy = JNI_TRUE; |
|
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|
2500 } |
|
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|
2501 } |
| 0 | 2502 } |
|
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|
2503 HOTSPOT_JNI_GETSTRINGCHARS_RETURN(buf); |
| 0 | 2504 return buf; |
| 2505 JNI_END | |
| 2506 | |
| 2507 | |
| 2508 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars)) | |
| 2509 JNIWrapper("ReleaseStringChars"); | |
|
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|
2510 HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(env, str, (uint16_t *) chars); |
| 0 | 2511 //%note jni_6 |
| 2512 if (chars != NULL) { | |
| 2513 // Since String objects are supposed to be immutable, don't copy any | |
| 2514 // new data back. A bad user will have to go after the char array. | |
| 2515 FreeHeap((void*) chars); | |
| 2516 } | |
|
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|
2517 HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(); |
| 0 | 2518 JNI_END |
| 2519 | |
| 2520 | |
| 2521 // UTF Interface | |
| 2522 | |
| 4006 | 2523 DT_RETURN_MARK_DECL(NewStringUTF, jstring |
| 2524 , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref)); | |
| 0 | 2525 |
| 2526 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes)) | |
| 2527 JNIWrapper("NewStringUTF"); | |
|
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|
2528 HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(env, (char *) bytes); |
| 0 | 2529 jstring ret; |
| 2530 DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret); | |
| 2531 | |
| 2532 oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL); | |
| 2533 ret = (jstring) JNIHandles::make_local(env, result); | |
| 2534 return ret; | |
| 2535 JNI_END | |
| 2536 | |
| 2537 | |
| 2538 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string)) | |
| 2539 JNIWrapper("GetStringUTFLength"); | |
|
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2540 HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(env, string); |
|
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|
2541 jsize ret = 0; |
|
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|
2542 oop java_string = JNIHandles::resolve_non_null(string); |
|
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|
2543 if (java_lang_String::value(java_string) != NULL) { |
|
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|
2544 ret = java_lang_String::utf8_length(java_string); |
|
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|
2545 } |
|
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|
2546 HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(ret); |
| 0 | 2547 return ret; |
| 2548 JNI_END | |
| 2549 | |
| 2550 | |
| 2551 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy)) | |
| 2552 JNIWrapper("GetStringUTFChars"); | |
|
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2553 HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(env, string, (uintptr_t *) isCopy); |
|
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|
2554 char* result = NULL; |
|
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|
2555 oop java_string = JNIHandles::resolve_non_null(string); |
|
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|
2556 if (java_lang_String::value(java_string) != NULL) { |
|
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|
2557 size_t length = java_lang_String::utf8_length(java_string); |
|
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|
2558 /* JNI Specification states return NULL on OOM */ |
|
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|
2559 result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL); |
|
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|
2560 if (result != NULL) { |
|
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|
2561 java_lang_String::as_utf8_string(java_string, result, (int) length + 1); |
|
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|
2562 if (isCopy != NULL) { |
|
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|
2563 *isCopy = JNI_TRUE; |
|
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|
2564 } |
|
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|
2565 } |
|
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|
2566 } |
|
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|
2567 HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(result); |
| 0 | 2568 return result; |
| 2569 JNI_END | |
| 2570 | |
| 2571 | |
| 2572 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars)) | |
| 2573 JNIWrapper("ReleaseStringUTFChars"); | |
|
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|
2574 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(env, str, (char *) chars); |
| 0 | 2575 if (chars != NULL) { |
| 2576 FreeHeap((char*) chars); | |
| 2577 } | |
|
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|
2578 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(); |
| 0 | 2579 JNI_END |
| 2580 | |
| 2581 | |
| 2582 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array)) | |
| 2583 JNIWrapper("GetArrayLength"); | |
|
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|
2584 HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(env, array); |
| 0 | 2585 arrayOop a = arrayOop(JNIHandles::resolve_non_null(array)); |
| 2586 assert(a->is_array(), "must be array"); | |
| 2587 jsize ret = a->length(); | |
|
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|
2588 HOTSPOT_JNI_GETARRAYLENGTH_RETURN(ret); |
| 0 | 2589 return ret; |
| 2590 JNI_END | |
| 2591 | |
| 2592 | |
| 2593 // | |
| 2594 // Object Array Operations | |
| 2595 // | |
| 2596 | |
| 4006 | 2597 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray |
| 2598 , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref)); | |
| 0 | 2599 |
| 2600 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement)) | |
| 2601 JNIWrapper("NewObjectArray"); | |
|
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|
2602 HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(env, length, elementClass, initialElement); |
| 0 | 2603 jobjectArray ret = NULL; |
| 2604 DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret); | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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6197
diff
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|
2605 KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass))); |
| 6983 | 2606 Klass* ako = ek()->array_klass(CHECK_NULL); |
| 0 | 2607 KlassHandle ak = KlassHandle(THREAD, ako); |
|
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diff
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|
2608 ObjArrayKlass::cast(ak())->initialize(CHECK_NULL); |
|
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|
2609 objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL); |
| 0 | 2610 oop initial_value = JNIHandles::resolve(initialElement); |
| 2611 if (initial_value != NULL) { // array already initialized with NULL | |
| 2612 for (int index = 0; index < length; index++) { | |
| 2613 result->obj_at_put(index, initial_value); | |
| 2614 } | |
| 2615 } | |
| 2616 ret = (jobjectArray) JNIHandles::make_local(env, result); | |
| 2617 return ret; | |
| 2618 JNI_END | |
| 2619 | |
| 4006 | 2620 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject |
| 2621 , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref)); | |
| 0 | 2622 |
| 2623 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index)) | |
| 2624 JNIWrapper("GetObjectArrayElement"); | |
|
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|
2625 HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(env, array, index); |
| 0 | 2626 jobject ret = NULL; |
| 2627 DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret); | |
| 2628 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array)); | |
| 2629 if (a->is_within_bounds(index)) { | |
|
1034
08780c8a9f04
6893483: DTrace probe return values for a couple JNI methods are wrong
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973
diff
changeset
|
2630 ret = JNIHandles::make_local(env, a->obj_at(index)); |
| 0 | 2631 return ret; |
| 2632 } else { | |
| 2633 char buf[jintAsStringSize]; | |
| 2634 sprintf(buf, "%d", index); | |
| 2635 THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf); | |
| 2636 } | |
| 2637 JNI_END | |
| 2638 | |
| 4006 | 2639 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement |
| 2640 , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN()); | |
| 0 | 2641 |
| 2642 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value)) | |
| 2643 JNIWrapper("SetObjectArrayElement"); | |
|
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|
2644 HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(env, array, index, value); |
| 0 | 2645 DT_VOID_RETURN_MARK(SetObjectArrayElement); |
| 2646 | |
| 2647 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array)); | |
| 2648 oop v = JNIHandles::resolve(value); | |
| 2649 if (a->is_within_bounds(index)) { | |
|
6831
d8ce2825b193
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6725
diff
changeset
|
2650 if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) { |
| 0 | 2651 a->obj_at_put(index, v); |
| 2652 } else { | |
| 2653 THROW(vmSymbols::java_lang_ArrayStoreException()); | |
| 2654 } | |
| 2655 } else { | |
| 2656 char buf[jintAsStringSize]; | |
| 2657 sprintf(buf, "%d", index); | |
| 2658 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf); | |
| 2659 } | |
| 2660 JNI_END | |
| 2661 | |
| 2662 | |
| 4006 | 2663 |
| 2664 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \ | |
| 2665 ,EntryProbe,ReturnProbe) \ | |
| 2666 \ | |
| 2667 DT_RETURN_MARK_DECL(New##Result##Array, Return \ | |
| 2668 , ReturnProbe); \ | |
| 2669 \ | |
| 2670 JNI_ENTRY(Return, \ | |
| 2671 jni_New##Result##Array(JNIEnv *env, jsize len)) \ | |
| 2672 JNIWrapper("New" XSTR(Result) "Array"); \ | |
| 2673 EntryProbe; \ | |
| 2674 Return ret = NULL;\ | |
| 2675 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\ | |
| 2676 \ | |
| 2677 oop obj= oopFactory::Allocator(len, CHECK_0); \ | |
| 2678 ret = (Return) JNIHandles::make_local(env, obj); \ | |
| 2679 return ret;\ | |
| 2680 JNI_END | |
| 2681 | |
| 2682 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean, | |
| 2683 HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len), | |
| 2684 HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref)) | |
| 2685 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte, | |
| 2686 HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len), | |
| 2687 HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref)) | |
| 2688 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short, | |
| 2689 HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len), | |
| 2690 HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref)) | |
| 2691 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char, | |
| 2692 HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len), | |
| 2693 HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref)) | |
| 2694 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int, | |
| 2695 HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len), | |
| 2696 HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref)) | |
| 2697 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long, | |
| 2698 HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len), | |
| 2699 HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref)) | |
| 2700 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float, | |
| 2701 HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len), | |
| 2702 HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref)) | |
| 2703 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double, | |
| 2704 HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len), | |
| 2705 HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref)) | |
| 0 | 2706 |
| 2707 // Return an address which will fault if the caller writes to it. | |
| 2708 | |
| 2709 static char* get_bad_address() { | |
| 2710 static char* bad_address = NULL; | |
| 2711 if (bad_address == NULL) { | |
| 2712 size_t size = os::vm_allocation_granularity(); | |
| 2713 bad_address = os::reserve_memory(size); | |
| 2714 if (bad_address != NULL) { | |
|
477
24fda36852ce
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237
diff
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|
2715 os::protect_memory(bad_address, size, os::MEM_PROT_READ, |
|
24fda36852ce
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|
2716 /*is_committed*/false); |
| 0 | 2717 } |
| 2718 } | |
| 2719 return bad_address; | |
| 2720 } | |
| 2721 | |
| 2722 | |
| 4006 | 2723 |
| 2724 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \ | |
| 2725 , EntryProbe, ReturnProbe) \ | |
| 2726 \ | |
| 2727 JNI_QUICK_ENTRY(ElementType*, \ | |
| 2728 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \ | |
| 2729 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \ | |
| 2730 EntryProbe; \ | |
| 2731 /* allocate an chunk of memory in c land */ \ | |
| 2732 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ | |
| 2733 ElementType* result; \ | |
| 2734 int len = a->length(); \ | |
| 2735 if (len == 0) { \ | |
| 2736 /* Empty array: legal but useless, can't return NULL. \ | |
| 2737 * Return a pointer to something useless. \ | |
| 2738 * Avoid asserts in typeArrayOop. */ \ | |
| 2739 result = (ElementType*)get_bad_address(); \ | |
| 2740 } else { \ | |
|
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|
2741 /* JNI Specification states return NULL on OOM */ \ |
|
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|
2742 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \ |
|
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|
2743 if (result != NULL) { \ |
|
faf2631b9334
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|
2744 /* copy the array to the c chunk */ \ |
|
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11092
diff
changeset
|
2745 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \ |
|
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|
2746 if (isCopy) { \ |
|
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|
2747 *isCopy = JNI_TRUE; \ |
|
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|
2748 } \ |
|
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|
2749 } \ |
| 4006 | 2750 } \ |
| 2751 ReturnProbe; \ | |
| 2752 return result; \ | |
| 2753 JNI_END | |
| 2754 | |
| 2755 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool | |
| 2756 , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), | |
| 2757 HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result)) | |
| 2758 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte | |
| 2759 , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), | |
| 2760 HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result)) | |
| 2761 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short | |
| 2762 , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy), | |
| 2763 HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result)) | |
| 2764 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char | |
| 2765 , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy), | |
| 2766 HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result)) | |
| 2767 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int | |
| 2768 , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), | |
| 2769 HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result)) | |
| 2770 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long | |
| 2771 , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), | |
| 2772 HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result))) | |
| 2773 // Float and double probes don't return value because dtrace doesn't currently support it | |
| 2774 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float | |
| 2775 , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), | |
| 2776 HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result)) | |
| 2777 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double | |
| 2778 , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), | |
| 2779 HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result)) | |
| 14380 | 2780 |
| 4006 | 2781 |
| 2782 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \ | |
| 2783 , EntryProbe, ReturnProbe);\ | |
| 2784 \ | |
| 2785 JNI_QUICK_ENTRY(void, \ | |
| 2786 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \ | |
| 2787 ElementType *buf, jint mode)) \ | |
| 2788 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \ | |
| 2789 EntryProbe; \ | |
| 2790 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ | |
| 2791 int len = a->length(); \ | |
| 2792 if (len != 0) { /* Empty array: nothing to free or copy. */ \ | |
| 2793 if ((mode == 0) || (mode == JNI_COMMIT)) { \ | |
| 2794 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \ | |
| 2795 } \ | |
| 2796 if ((mode == 0) || (mode == JNI_ABORT)) { \ | |
| 2797 FreeHeap(buf); \ | |
| 2798 } \ | |
| 2799 } \ | |
| 2800 ReturnProbe; \ | |
| 2801 JNI_END | |
| 2802 | |
| 2803 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool | |
| 2804 , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode), | |
| 2805 HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN()) | |
| 2806 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte | |
| 2807 , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode), | |
| 2808 HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN()) | |
| 2809 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short | |
| 2810 , HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode), | |
| 2811 HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN()) | |
| 2812 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char | |
| 2813 , HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode), | |
| 2814 HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN()) | |
| 2815 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int | |
| 2816 , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode), | |
| 2817 HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN()) | |
| 2818 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long | |
| 2819 , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode), | |
| 2820 HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN()) | |
| 2821 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float | |
| 2822 , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode), | |
| 2823 HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN()) | |
| 2824 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double | |
| 2825 , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode), | |
| 2826 HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN()) | |
| 14380 | 2827 |
| 4006 | 2828 |
| 2829 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \ | |
| 2830 , EntryProbe, ReturnProbe); \ | |
| 2831 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \ | |
| 2832 , ReturnProbe); \ | |
| 2833 \ | |
| 2834 JNI_ENTRY(void, \ | |
| 2835 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ | |
| 2836 jsize len, ElementType *buf)) \ | |
| 2837 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \ | |
| 2838 EntryProbe; \ | |
| 2839 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \ | |
| 2840 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \ | |
| 2841 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \ | |
| 2842 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ | |
| 2843 } else { \ | |
| 2844 if (len > 0) { \ | |
|
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2845 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \ |
| 4006 | 2846 memcpy((u_char*) buf, \ |
| 2847 (u_char*) src->Tag##_at_addr(start), \ | |
| 2848 len << sc); \ | |
| 2849 } \ | |
| 2850 } \ | |
| 2851 JNI_END | |
| 2852 | |
| 2853 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool | |
| 2854 , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), | |
| 2855 HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN()); | |
| 2856 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte | |
| 2857 , HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf), | |
| 2858 HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN()); | |
| 2859 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short | |
| 2860 , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), | |
| 2861 HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN()); | |
| 2862 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char | |
| 2863 , HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf), | |
| 2864 HOTSPOT_JNI_GETCHARARRAYREGION_RETURN()); | |
| 2865 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int | |
| 2866 , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf), | |
| 2867 HOTSPOT_JNI_GETINTARRAYREGION_RETURN()); | |
| 2868 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long | |
| 2869 , HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), | |
| 2870 HOTSPOT_JNI_GETLONGARRAYREGION_RETURN()); | |
| 2871 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float | |
| 2872 , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf), | |
| 2873 HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN()); | |
| 2874 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double | |
| 2875 , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf), | |
| 2876 HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN()); | |
| 14380 | 2877 |
| 4006 | 2878 |
| 2879 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \ | |
| 2880 , EntryProbe, ReturnProbe); \ | |
| 2881 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \ | |
| 2882 ,ReturnProbe); \ | |
| 2883 \ | |
| 2884 JNI_ENTRY(void, \ | |
| 2885 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ | |
| 2886 jsize len, const ElementType *buf)) \ | |
| 2887 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \ | |
| 2888 EntryProbe; \ | |
| 2889 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \ | |
| 2890 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \ | |
| 2891 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \ | |
| 2892 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ | |
| 2893 } else { \ | |
| 2894 if (len > 0) { \ | |
|
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2895 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \ |
| 4006 | 2896 memcpy((u_char*) dst->Tag##_at_addr(start), \ |
| 2897 (u_char*) buf, \ | |
| 2898 len << sc); \ | |
| 2899 } \ | |
| 2900 } \ | |
| 2901 JNI_END | |
| 2902 | |
| 2903 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool | |
| 2904 , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf), | |
| 2905 HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN()) | |
| 2906 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte | |
| 2907 , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf), | |
| 2908 HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN()) | |
| 2909 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short | |
| 2910 , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), | |
| 2911 HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN()) | |
| 2912 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char | |
| 2913 , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), | |
| 2914 HOTSPOT_JNI_SETCHARARRAYREGION_RETURN()) | |
| 2915 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int | |
| 2916 , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf), | |
| 2917 HOTSPOT_JNI_SETINTARRAYREGION_RETURN()) | |
| 2918 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long | |
| 2919 , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), | |
| 2920 HOTSPOT_JNI_SETLONGARRAYREGION_RETURN()) | |
| 2921 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float | |
| 2922 , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf), | |
| 2923 HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN()) | |
| 2924 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double | |
| 2925 , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf), | |
| 2926 HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN()) | |
| 2927 | |
| 0 | 2928 |
| 2929 // | |
| 2930 // Interception of natives | |
| 2931 // | |
| 2932 | |
| 2933 // The RegisterNatives call being attempted tried to register with a method that | |
| 2934 // is not native. Ask JVM TI what prefixes have been specified. Then check | |
| 2935 // to see if the native method is now wrapped with the prefixes. See the | |
| 2936 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details. | |
|
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2937 static Method* find_prefixed_native(KlassHandle k, |
|
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2938 Symbol* name, Symbol* signature, TRAPS) { |
|
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2939 #if INCLUDE_JVMTI |
| 0 | 2940 ResourceMark rm(THREAD); |
|
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2941 Method* method; |
| 0 | 2942 int name_len = name->utf8_length(); |
| 2943 char* name_str = name->as_utf8(); | |
| 2944 int prefix_count; | |
| 2945 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count); | |
| 2946 for (int i = 0; i < prefix_count; i++) { | |
| 2947 char* prefix = prefixes[i]; | |
| 2948 int prefix_len = (int)strlen(prefix); | |
| 2949 | |
| 2950 // try adding this prefix to the method name and see if it matches another method name | |
| 2951 int trial_len = name_len + prefix_len; | |
| 2952 char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1); | |
| 2953 strcpy(trial_name_str, prefix); | |
| 2954 strcat(trial_name_str, name_str); | |
|
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2955 TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len); |
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|
2956 if (trial_name == NULL) { |
| 0 | 2957 continue; // no such symbol, so this prefix wasn't used, try the next prefix |
| 2958 } | |
| 6983 | 2959 method = k()->lookup_method(trial_name, signature); |
| 0 | 2960 if (method == NULL) { |
| 2961 continue; // signature doesn't match, try the next prefix | |
| 2962 } | |
| 2963 if (method->is_native()) { | |
| 2964 method->set_is_prefixed_native(); | |
| 2965 return method; // wahoo, we found a prefixed version of the method, return it | |
| 2966 } | |
| 2967 // found as non-native, so prefix is good, add it, probably just need more prefixes | |
| 2968 name_len = trial_len; | |
| 2969 name_str = trial_name_str; | |
| 2970 } | |
|
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|
2971 #endif // INCLUDE_JVMTI |
| 0 | 2972 return NULL; // not found |
| 2973 } | |
| 2974 | |
|
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|
2975 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) { |
| 6983 | 2976 Method* method = k()->lookup_method(name, signature); |
| 0 | 2977 if (method == NULL) { |
| 2978 ResourceMark rm; | |
| 2979 stringStream st; | |
| 2980 st.print("Method %s name or signature does not match", | |
| 6983 | 2981 Method::name_and_sig_as_C_string(k(), name, signature)); |
| 0 | 2982 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false); |
| 2983 } | |
| 2984 if (!method->is_native()) { | |
| 2985 // trying to register to a non-native method, see if a JVM TI agent has added prefix(es) | |
| 2986 method = find_prefixed_native(k, name, signature, THREAD); | |
| 2987 if (method == NULL) { | |
| 2988 ResourceMark rm; | |
| 2989 stringStream st; | |
| 2990 st.print("Method %s is not declared as native", | |
| 6983 | 2991 Method::name_and_sig_as_C_string(k(), name, signature)); |
| 0 | 2992 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false); |
| 2993 } | |
| 2994 } | |
| 2995 | |
| 2996 if (entry != NULL) { | |
| 2997 method->set_native_function(entry, | |
|
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2998 Method::native_bind_event_is_interesting); |
| 0 | 2999 } else { |
| 3000 method->clear_native_function(); | |
| 3001 } | |
| 3002 if (PrintJNIResolving) { | |
| 3003 ResourceMark rm(THREAD); | |
| 3004 tty->print_cr("[Registering JNI native method %s.%s]", | |
|
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|
3005 method->method_holder()->external_name(), |
| 0 | 3006 method->name()->as_C_string()); |
| 3007 } | |
| 3008 return true; | |
| 3009 } | |
| 3010 | |
| 4006 | 3011 DT_RETURN_MARK_DECL(RegisterNatives, jint |
| 3012 , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref)); | |
| 0 | 3013 |
| 3014 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz, | |
| 3015 const JNINativeMethod *methods, | |
| 3016 jint nMethods)) | |
| 3017 JNIWrapper("RegisterNatives"); | |
|
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|
3018 HOTSPOT_JNI_REGISTERNATIVES_ENTRY(env, clazz, (void *) methods, nMethods); |
| 0 | 3019 jint ret = 0; |
| 3020 DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret); | |
| 3021 | |
|
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3022 KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| 0 | 3023 |
| 3024 for (int index = 0; index < nMethods; index++) { | |
| 3025 const char* meth_name = methods[index].name; | |
| 3026 const char* meth_sig = methods[index].signature; | |
| 3027 int meth_name_len = (int)strlen(meth_name); | |
| 3028 | |
| 3029 // The class should have been loaded (we have an instance of the class | |
| 3030 // passed in) so the method and signature should already be in the symbol | |
| 3031 // table. If they're not there, the method doesn't exist. | |
|
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|
3032 TempNewSymbol name = SymbolTable::probe(meth_name, meth_name_len); |
|
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|
3033 TempNewSymbol signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig)); |
|
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|
3034 |
|
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|
3035 if (name == NULL || signature == NULL) { |
| 0 | 3036 ResourceMark rm; |
| 3037 stringStream st; | |
| 6983 | 3038 st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig); |
| 0 | 3039 // Must return negative value on failure |
| 3040 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1); | |
| 3041 } | |
| 3042 | |
| 3043 bool res = register_native(h_k, name, signature, | |
| 3044 (address) methods[index].fnPtr, THREAD); | |
| 3045 if (!res) { | |
| 3046 ret = -1; | |
| 3047 break; | |
| 3048 } | |
| 3049 } | |
| 3050 return ret; | |
| 3051 JNI_END | |
| 3052 | |
| 3053 | |
| 3054 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz)) | |
| 3055 JNIWrapper("UnregisterNatives"); | |
|
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|
3056 HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(env, clazz); |
|
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3057 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)); |
| 0 | 3058 //%note jni_2 |
| 6983 | 3059 if (k->oop_is_instance()) { |
|
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|
3060 for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) { |
|
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3061 Method* m = InstanceKlass::cast(k)->methods()->at(index); |
| 0 | 3062 if (m->is_native()) { |
| 3063 m->clear_native_function(); | |
| 3064 m->set_signature_handler(NULL); | |
| 3065 } | |
| 3066 } | |
| 3067 } | |
|
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3068 HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(0); |
| 0 | 3069 return 0; |
| 3070 JNI_END | |
| 3071 | |
| 3072 // | |
| 3073 // Monitor functions | |
| 3074 // | |
| 3075 | |
| 4006 | 3076 DT_RETURN_MARK_DECL(MonitorEnter, jint |
| 3077 , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref)); | |
| 0 | 3078 |
| 3079 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj)) | |
|
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|
3080 HOTSPOT_JNI_MONITORENTER_ENTRY(env, jobj); |
| 0 | 3081 jint ret = JNI_ERR; |
| 3082 DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret); | |
| 3083 | |
| 3084 // If the object is null, we can't do anything with it | |
| 3085 if (jobj == NULL) { | |
| 3086 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR); | |
| 3087 } | |
| 3088 | |
| 3089 Handle obj(thread, JNIHandles::resolve_non_null(jobj)); | |
| 3090 ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR)); | |
| 3091 ret = JNI_OK; | |
| 3092 return ret; | |
| 3093 JNI_END | |
| 3094 | |
| 4006 | 3095 DT_RETURN_MARK_DECL(MonitorExit, jint |
| 3096 , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref)); | |
| 0 | 3097 |
| 3098 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj)) | |
|
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|
3099 HOTSPOT_JNI_MONITOREXIT_ENTRY(env, jobj); |
| 0 | 3100 jint ret = JNI_ERR; |
| 3101 DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret); | |
| 3102 | |
| 3103 // Don't do anything with a null object | |
| 3104 if (jobj == NULL) { | |
| 3105 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR); | |
| 3106 } | |
| 3107 | |
| 3108 Handle obj(THREAD, JNIHandles::resolve_non_null(jobj)); | |
| 3109 ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR)); | |
| 3110 | |
| 3111 ret = JNI_OK; | |
| 3112 return ret; | |
| 3113 JNI_END | |
| 3114 | |
| 3115 // | |
| 3116 // Extensions | |
| 3117 // | |
| 3118 | |
| 4006 | 3119 DT_VOID_RETURN_MARK_DECL(GetStringRegion |
| 3120 , HOTSPOT_JNI_GETSTRINGREGION_RETURN()); | |
| 0 | 3121 |
| 3122 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf)) | |
| 3123 JNIWrapper("GetStringRegion"); | |
|
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|
3124 HOTSPOT_JNI_GETSTRINGREGION_ENTRY(env, string, start, len, buf); |
| 0 | 3125 DT_VOID_RETURN_MARK(GetStringRegion); |
| 3126 oop s = JNIHandles::resolve_non_null(string); | |
| 3127 int s_len = java_lang_String::length(s); | |
| 3128 if (start < 0 || len < 0 || start + len > s_len) { | |
| 3129 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException()); | |
| 3130 } else { | |
| 3131 if (len > 0) { | |
| 3132 int s_offset = java_lang_String::offset(s); | |
| 3133 typeArrayOop s_value = java_lang_String::value(s); | |
| 3134 memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len); | |
| 3135 } | |
| 3136 } | |
| 3137 JNI_END | |
| 3138 | |
| 4006 | 3139 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion |
| 3140 , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN()); | |
| 0 | 3141 |
| 3142 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf)) | |
| 3143 JNIWrapper("GetStringUTFRegion"); | |
|
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|
3144 HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(env, string, start, len, buf); |
| 0 | 3145 DT_VOID_RETURN_MARK(GetStringUTFRegion); |
| 3146 oop s = JNIHandles::resolve_non_null(string); | |
| 3147 int s_len = java_lang_String::length(s); | |
| 3148 if (start < 0 || len < 0 || start + len > s_len) { | |
| 3149 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException()); | |
| 3150 } else { | |
| 3151 //%note jni_7 | |
| 3152 if (len > 0) { | |
| 3153 ResourceMark rm(THREAD); | |
| 3154 char *utf_region = java_lang_String::as_utf8_string(s, start, len); | |
| 3155 int utf_len = (int)strlen(utf_region); | |
| 3156 memcpy(buf, utf_region, utf_len); | |
| 3157 buf[utf_len] = 0; | |
| 3158 } else { | |
| 3159 // JDK null-terminates the buffer even in len is zero | |
| 3160 if (buf != NULL) { | |
| 3161 buf[0] = 0; | |
| 3162 } | |
| 3163 } | |
| 3164 } | |
| 3165 JNI_END | |
| 3166 | |
| 3167 | |
| 3168 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy)) | |
| 3169 JNIWrapper("GetPrimitiveArrayCritical"); | |
|
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|
3170 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(env, array, (uintptr_t *) isCopy); |
| 0 | 3171 GC_locker::lock_critical(thread); |
| 3172 if (isCopy != NULL) { | |
| 3173 *isCopy = JNI_FALSE; | |
| 3174 } | |
| 3175 oop a = JNIHandles::resolve_non_null(array); | |
| 3176 assert(a->is_array(), "just checking"); | |
| 3177 BasicType type; | |
| 3178 if (a->is_objArray()) { | |
| 3179 type = T_OBJECT; | |
| 3180 } else { | |
|
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|
3181 type = TypeArrayKlass::cast(a->klass())->element_type(); |
| 0 | 3182 } |
| 3183 void* ret = arrayOop(a)->base(type); | |
|
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|
3184 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(ret); |
| 0 | 3185 return ret; |
| 3186 JNI_END | |
| 3187 | |
| 3188 | |
| 3189 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode)) | |
| 3190 JNIWrapper("ReleasePrimitiveArrayCritical"); | |
|
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|
3191 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(env, array, carray, mode); |
| 0 | 3192 // The array, carray and mode arguments are ignored |
| 3193 GC_locker::unlock_critical(thread); | |
|
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|
3194 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(); |
| 0 | 3195 JNI_END |
| 3196 | |
| 3197 | |
| 3198 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy)) | |
| 3199 JNIWrapper("GetStringCritical"); | |
|
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|
3200 HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(env, string, (uintptr_t *) isCopy); |
| 0 | 3201 GC_locker::lock_critical(thread); |
| 3202 if (isCopy != NULL) { | |
| 3203 *isCopy = JNI_FALSE; | |
| 3204 } | |
| 3205 oop s = JNIHandles::resolve_non_null(string); | |
| 3206 int s_len = java_lang_String::length(s); | |
| 3207 typeArrayOop s_value = java_lang_String::value(s); | |
| 3208 int s_offset = java_lang_String::offset(s); | |
| 3209 const jchar* ret; | |
| 3210 if (s_len > 0) { | |
| 3211 ret = s_value->char_at_addr(s_offset); | |
| 3212 } else { | |
| 3213 ret = (jchar*) s_value->base(T_CHAR); | |
| 3214 } | |
|
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|
3215 HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN((uint16_t *) ret); |
| 0 | 3216 return ret; |
| 3217 JNI_END | |
| 3218 | |
| 3219 | |
| 3220 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars)) | |
| 3221 JNIWrapper("ReleaseStringCritical"); | |
|
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|
3222 HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(env, str, (uint16_t *) chars); |
| 0 | 3223 // The str and chars arguments are ignored |
| 3224 GC_locker::unlock_critical(thread); | |
|
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|
3225 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(); |
| 0 | 3226 JNI_END |
| 3227 | |
| 3228 | |
| 3229 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref)) | |
| 3230 JNIWrapper("jni_NewWeakGlobalRef"); | |
|
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|
3231 HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(env, ref); |
| 0 | 3232 Handle ref_handle(thread, JNIHandles::resolve(ref)); |
| 3233 jweak ret = JNIHandles::make_weak_global(ref_handle); | |
|
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|
3234 HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(ret); |
| 0 | 3235 return ret; |
| 3236 JNI_END | |
| 3237 | |
| 3238 // Must be JNI_ENTRY (with HandleMark) | |
| 3239 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref)) | |
| 3240 JNIWrapper("jni_DeleteWeakGlobalRef"); | |
|
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|
3241 HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(env, ref); |
| 0 | 3242 JNIHandles::destroy_weak_global(ref); |
|
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|
3243 HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(); |
| 0 | 3244 JNI_END |
| 3245 | |
| 3246 | |
| 3247 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env)) | |
| 3248 JNIWrapper("jni_ExceptionCheck"); | |
|
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|
3249 HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(env); |
| 0 | 3250 jni_check_async_exceptions(thread); |
| 3251 jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE; | |
|
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|
3252 HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(ret); |
| 0 | 3253 return ret; |
| 3254 JNI_END | |
| 3255 | |
| 3256 | |
| 3257 // Initialization state for three routines below relating to | |
| 3258 // java.nio.DirectBuffers | |
| 3259 static jint directBufferSupportInitializeStarted = 0; | |
| 3260 static volatile jint directBufferSupportInitializeEnded = 0; | |
| 3261 static volatile jint directBufferSupportInitializeFailed = 0; | |
| 3262 static jclass bufferClass = NULL; | |
| 3263 static jclass directBufferClass = NULL; | |
| 3264 static jclass directByteBufferClass = NULL; | |
| 3265 static jmethodID directByteBufferConstructor = NULL; | |
| 3266 static jfieldID directBufferAddressField = NULL; | |
| 3267 static jfieldID bufferCapacityField = NULL; | |
| 3268 | |
| 3269 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) { | |
| 3270 Handle loader; // null (bootstrap) loader | |
| 3271 Handle protection_domain; // null protection domain | |
| 3272 | |
|
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diff
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|
3273 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL); |
|
657
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
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diff
changeset
|
3274 jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL); |
|
715dceaa89b7
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|
3275 |
|
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diff
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|
3276 if (TraceClassResolution && result != NULL) { |
|
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da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6197
diff
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|
3277 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result))); |
|
657
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diff
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|
3278 } |
|
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|
3279 return result; |
| 0 | 3280 } |
| 3281 | |
| 3282 // These lookups are done with the NULL (bootstrap) ClassLoader to | |
| 3283 // circumvent any security checks that would be done by jni_FindClass. | |
| 3284 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env)) | |
| 3285 { | |
| 3286 if ((bufferClass = lookupOne(env, "java/nio/Buffer", thread)) == NULL) { return false; } | |
| 3287 if ((directBufferClass = lookupOne(env, "sun/nio/ch/DirectBuffer", thread)) == NULL) { return false; } | |
| 3288 if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; } | |
| 3289 return true; | |
| 3290 } | |
| 3291 JNI_END | |
| 3292 | |
| 3293 | |
| 3294 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) { | |
| 3295 if (directBufferSupportInitializeFailed) { | |
| 3296 return false; | |
| 3297 } | |
| 3298 | |
| 3299 if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) { | |
| 3300 if (!lookupDirectBufferClasses(env)) { | |
| 3301 directBufferSupportInitializeFailed = 1; | |
| 3302 return false; | |
| 3303 } | |
| 3304 | |
| 3305 // Make global references for these | |
| 3306 bufferClass = (jclass) env->NewGlobalRef(bufferClass); | |
| 3307 directBufferClass = (jclass) env->NewGlobalRef(directBufferClass); | |
| 3308 directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass); | |
| 3309 | |
| 3310 // Get needed field and method IDs | |
| 3311 directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V"); | |
|
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diff
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|
3312 if (env->ExceptionCheck()) { |
|
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diff
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|
3313 env->ExceptionClear(); |
|
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|
3314 directBufferSupportInitializeFailed = 1; |
|
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|
3315 return false; |
|
4f6bf7dd3f52
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diff
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|
3316 } |
| 0 | 3317 directBufferAddressField = env->GetFieldID(bufferClass, "address", "J"); |
|
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|
3318 if (env->ExceptionCheck()) { |
|
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|
3319 env->ExceptionClear(); |
|
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|
3320 directBufferSupportInitializeFailed = 1; |
|
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|
3321 return false; |
|
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diff
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|
3322 } |
| 0 | 3323 bufferCapacityField = env->GetFieldID(bufferClass, "capacity", "I"); |
|
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|
3324 if (env->ExceptionCheck()) { |
|
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diff
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|
3325 env->ExceptionClear(); |
|
4f6bf7dd3f52
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|
3326 directBufferSupportInitializeFailed = 1; |
|
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|
3327 return false; |
|
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diff
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|
3328 } |
| 0 | 3329 |
| 3330 if ((directByteBufferConstructor == NULL) || | |
| 3331 (directBufferAddressField == NULL) || | |
| 3332 (bufferCapacityField == NULL)) { | |
| 3333 directBufferSupportInitializeFailed = 1; | |
| 3334 return false; | |
| 3335 } | |
| 3336 | |
| 3337 directBufferSupportInitializeEnded = 1; | |
| 3338 } else { | |
| 3339 while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) { | |
|
521
4db4e58c16bd
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477
diff
changeset
|
3340 // Set state as yield_all can call os:sleep. On Solaris, yield_all calls |
|
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
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477
diff
changeset
|
3341 // os::sleep which requires the VM state transition. On other platforms, it |
|
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
xlu
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477
diff
changeset
|
3342 // is not necessary. The following call to change the VM state is purposely |
|
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
xlu
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477
diff
changeset
|
3343 // put inside the loop to avoid potential deadlock when multiple threads |
|
4db4e58c16bd
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477
diff
changeset
|
3344 // try to call this method. See 6791815 for more details. |
|
4db4e58c16bd
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477
diff
changeset
|
3345 ThreadInVMfromNative tivn(thread); |
| 0 | 3346 os::yield_all(); |
| 3347 } | |
| 3348 } | |
| 3349 | |
| 3350 return !directBufferSupportInitializeFailed; | |
| 3351 } | |
| 3352 | |
| 3353 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity) | |
| 3354 { | |
| 3355 // thread_from_jni_environment() will block if VM is gone. | |
| 3356 JavaThread* thread = JavaThread::thread_from_jni_environment(env); | |
| 3357 | |
| 3358 JNIWrapper("jni_NewDirectByteBuffer"); | |
|
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|
3359 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(env, address, capacity); |
| 0 | 3360 |
| 3361 if (!directBufferSupportInitializeEnded) { | |
| 3362 if (!initializeDirectBufferSupport(env, thread)) { | |
|
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|
3363 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(NULL); |
| 0 | 3364 return NULL; |
| 3365 } | |
| 3366 } | |
| 3367 | |
| 3368 // Being paranoid about accidental sign extension on address | |
| 3369 jlong addr = (jlong) ((uintptr_t) address); | |
| 3370 // NOTE that package-private DirectByteBuffer constructor currently | |
| 3371 // takes int capacity | |
| 3372 jint cap = (jint) capacity; | |
| 3373 jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap); | |
|
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|
3374 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(ret); |
| 0 | 3375 return ret; |
| 3376 } | |
| 3377 | |
| 4006 | 3378 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void* |
| 3379 , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref)); | |
| 0 | 3380 |
| 3381 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf) | |
| 3382 { | |
| 3383 // thread_from_jni_environment() will block if VM is gone. | |
| 3384 JavaThread* thread = JavaThread::thread_from_jni_environment(env); | |
| 3385 | |
| 3386 JNIWrapper("jni_GetDirectBufferAddress"); | |
|
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|
3387 HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(env, buf); |
| 0 | 3388 void* ret = NULL; |
| 3389 DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret); | |
| 3390 | |
| 3391 if (!directBufferSupportInitializeEnded) { | |
| 3392 if (!initializeDirectBufferSupport(env, thread)) { | |
| 3393 return 0; | |
| 3394 } | |
| 3395 } | |
| 3396 | |
| 3397 if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) { | |
| 3398 return 0; | |
| 3399 } | |
| 3400 | |
| 3401 ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField); | |
| 3402 return ret; | |
| 3403 } | |
| 3404 | |
| 4006 | 3405 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong |
| 3406 , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref)); | |
| 0 | 3407 |
| 3408 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf) | |
| 3409 { | |
| 3410 // thread_from_jni_environment() will block if VM is gone. | |
| 3411 JavaThread* thread = JavaThread::thread_from_jni_environment(env); | |
| 3412 | |
| 3413 JNIWrapper("jni_GetDirectBufferCapacity"); | |
|
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|
3414 HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(env, buf); |
| 0 | 3415 jlong ret = -1; |
| 3416 DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret); | |
| 3417 | |
| 3418 if (!directBufferSupportInitializeEnded) { | |
| 3419 if (!initializeDirectBufferSupport(env, thread)) { | |
| 3420 ret = 0; | |
| 3421 return ret; | |
| 3422 } | |
| 3423 } | |
| 3424 | |
| 3425 if (buf == NULL) { | |
| 3426 return -1; | |
| 3427 } | |
| 3428 | |
| 3429 if (!env->IsInstanceOf(buf, directBufferClass)) { | |
| 3430 return -1; | |
| 3431 } | |
| 3432 | |
| 3433 // NOTE that capacity is currently an int in the implementation | |
| 3434 ret = env->GetIntField(buf, bufferCapacityField); | |
| 3435 return ret; | |
| 3436 } | |
| 3437 | |
| 3438 | |
| 3439 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env)) | |
| 3440 JNIWrapper("GetVersion"); | |
|
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|
3441 HOTSPOT_JNI_GETVERSION_ENTRY(env); |
|
a3ba776d6ab6
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sla
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14179
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changeset
|
3442 HOTSPOT_JNI_GETVERSION_RETURN(CurrentVersion); |
| 0 | 3443 return CurrentVersion; |
| 3444 JNI_END | |
| 3445 | |
| 3446 extern struct JavaVM_ main_vm; | |
| 3447 | |
| 3448 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm)) | |
| 3449 JNIWrapper("jni_GetJavaVM"); | |
|
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3450 HOTSPOT_JNI_GETJAVAVM_ENTRY(env, (void **) vm); |
| 0 | 3451 *vm = (JavaVM *)(&main_vm); |
|
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3452 HOTSPOT_JNI_GETJAVAVM_RETURN(JNI_OK); |
| 0 | 3453 return JNI_OK; |
| 3454 JNI_END | |
| 3455 | |
| 3456 // Structure containing all jni functions | |
| 3457 struct JNINativeInterface_ jni_NativeInterface = { | |
| 3458 NULL, | |
| 3459 NULL, | |
| 3460 NULL, | |
| 3461 | |
| 3462 NULL, | |
| 3463 | |
| 3464 jni_GetVersion, | |
| 3465 | |
| 3466 jni_DefineClass, | |
| 3467 jni_FindClass, | |
| 3468 | |
| 3469 jni_FromReflectedMethod, | |
| 3470 jni_FromReflectedField, | |
| 3471 | |
| 3472 jni_ToReflectedMethod, | |
| 3473 | |
| 3474 jni_GetSuperclass, | |
| 3475 jni_IsAssignableFrom, | |
| 3476 | |
| 3477 jni_ToReflectedField, | |
| 3478 | |
| 3479 jni_Throw, | |
| 3480 jni_ThrowNew, | |
| 3481 jni_ExceptionOccurred, | |
| 3482 jni_ExceptionDescribe, | |
| 3483 jni_ExceptionClear, | |
| 3484 jni_FatalError, | |
| 3485 | |
| 3486 jni_PushLocalFrame, | |
| 3487 jni_PopLocalFrame, | |
| 3488 | |
| 3489 jni_NewGlobalRef, | |
| 3490 jni_DeleteGlobalRef, | |
| 3491 jni_DeleteLocalRef, | |
| 3492 jni_IsSameObject, | |
| 3493 | |
| 3494 jni_NewLocalRef, | |
| 3495 jni_EnsureLocalCapacity, | |
| 3496 | |
| 3497 jni_AllocObject, | |
| 3498 jni_NewObject, | |
| 3499 jni_NewObjectV, | |
| 3500 jni_NewObjectA, | |
| 3501 | |
| 3502 jni_GetObjectClass, | |
| 3503 jni_IsInstanceOf, | |
| 3504 | |
| 3505 jni_GetMethodID, | |
| 3506 | |
| 3507 jni_CallObjectMethod, | |
| 3508 jni_CallObjectMethodV, | |
| 3509 jni_CallObjectMethodA, | |
| 3510 jni_CallBooleanMethod, | |
| 3511 jni_CallBooleanMethodV, | |
| 3512 jni_CallBooleanMethodA, | |
| 3513 jni_CallByteMethod, | |
| 3514 jni_CallByteMethodV, | |
| 3515 jni_CallByteMethodA, | |
| 3516 jni_CallCharMethod, | |
| 3517 jni_CallCharMethodV, | |
| 3518 jni_CallCharMethodA, | |
| 3519 jni_CallShortMethod, | |
| 3520 jni_CallShortMethodV, | |
| 3521 jni_CallShortMethodA, | |
| 3522 jni_CallIntMethod, | |
| 3523 jni_CallIntMethodV, | |
| 3524 jni_CallIntMethodA, | |
| 3525 jni_CallLongMethod, | |
| 3526 jni_CallLongMethodV, | |
| 3527 jni_CallLongMethodA, | |
| 3528 jni_CallFloatMethod, | |
| 3529 jni_CallFloatMethodV, | |
| 3530 jni_CallFloatMethodA, | |
| 3531 jni_CallDoubleMethod, | |
| 3532 jni_CallDoubleMethodV, | |
| 3533 jni_CallDoubleMethodA, | |
| 3534 jni_CallVoidMethod, | |
| 3535 jni_CallVoidMethodV, | |
| 3536 jni_CallVoidMethodA, | |
| 3537 | |
| 3538 jni_CallNonvirtualObjectMethod, | |
| 3539 jni_CallNonvirtualObjectMethodV, | |
| 3540 jni_CallNonvirtualObjectMethodA, | |
| 3541 jni_CallNonvirtualBooleanMethod, | |
| 3542 jni_CallNonvirtualBooleanMethodV, | |
| 3543 jni_CallNonvirtualBooleanMethodA, | |
| 3544 jni_CallNonvirtualByteMethod, | |
| 3545 jni_CallNonvirtualByteMethodV, | |
| 3546 jni_CallNonvirtualByteMethodA, | |
| 3547 jni_CallNonvirtualCharMethod, | |
| 3548 jni_CallNonvirtualCharMethodV, | |
| 3549 jni_CallNonvirtualCharMethodA, | |
| 3550 jni_CallNonvirtualShortMethod, | |
| 3551 jni_CallNonvirtualShortMethodV, | |
| 3552 jni_CallNonvirtualShortMethodA, | |
| 3553 jni_CallNonvirtualIntMethod, | |
| 3554 jni_CallNonvirtualIntMethodV, | |
| 3555 jni_CallNonvirtualIntMethodA, | |
| 3556 jni_CallNonvirtualLongMethod, | |
| 3557 jni_CallNonvirtualLongMethodV, | |
| 3558 jni_CallNonvirtualLongMethodA, | |
| 3559 jni_CallNonvirtualFloatMethod, | |
| 3560 jni_CallNonvirtualFloatMethodV, | |
| 3561 jni_CallNonvirtualFloatMethodA, | |
| 3562 jni_CallNonvirtualDoubleMethod, | |
| 3563 jni_CallNonvirtualDoubleMethodV, | |
| 3564 jni_CallNonvirtualDoubleMethodA, | |
| 3565 jni_CallNonvirtualVoidMethod, | |
| 3566 jni_CallNonvirtualVoidMethodV, | |
| 3567 jni_CallNonvirtualVoidMethodA, | |
| 3568 | |
| 3569 jni_GetFieldID, | |
| 3570 | |
| 3571 jni_GetObjectField, | |
| 3572 jni_GetBooleanField, | |
| 3573 jni_GetByteField, | |
| 3574 jni_GetCharField, | |
| 3575 jni_GetShortField, | |
| 3576 jni_GetIntField, | |
| 3577 jni_GetLongField, | |
| 3578 jni_GetFloatField, | |
| 3579 jni_GetDoubleField, | |
| 3580 | |
| 3581 jni_SetObjectField, | |
| 3582 jni_SetBooleanField, | |
| 3583 jni_SetByteField, | |
| 3584 jni_SetCharField, | |
| 3585 jni_SetShortField, | |
| 3586 jni_SetIntField, | |
| 3587 jni_SetLongField, | |
| 3588 jni_SetFloatField, | |
| 3589 jni_SetDoubleField, | |
| 3590 | |
| 3591 jni_GetStaticMethodID, | |
| 3592 | |
| 3593 jni_CallStaticObjectMethod, | |
| 3594 jni_CallStaticObjectMethodV, | |
| 3595 jni_CallStaticObjectMethodA, | |
| 3596 jni_CallStaticBooleanMethod, | |
| 3597 jni_CallStaticBooleanMethodV, | |
| 3598 jni_CallStaticBooleanMethodA, | |
| 3599 jni_CallStaticByteMethod, | |
| 3600 jni_CallStaticByteMethodV, | |
| 3601 jni_CallStaticByteMethodA, | |
| 3602 jni_CallStaticCharMethod, | |
| 3603 jni_CallStaticCharMethodV, | |
| 3604 jni_CallStaticCharMethodA, | |
| 3605 jni_CallStaticShortMethod, | |
| 3606 jni_CallStaticShortMethodV, | |
| 3607 jni_CallStaticShortMethodA, | |
| 3608 jni_CallStaticIntMethod, | |
| 3609 jni_CallStaticIntMethodV, | |
| 3610 jni_CallStaticIntMethodA, | |
| 3611 jni_CallStaticLongMethod, | |
| 3612 jni_CallStaticLongMethodV, | |
| 3613 jni_CallStaticLongMethodA, | |
| 3614 jni_CallStaticFloatMethod, | |
| 3615 jni_CallStaticFloatMethodV, | |
| 3616 jni_CallStaticFloatMethodA, | |
| 3617 jni_CallStaticDoubleMethod, | |
| 3618 jni_CallStaticDoubleMethodV, | |
| 3619 jni_CallStaticDoubleMethodA, | |
| 3620 jni_CallStaticVoidMethod, | |
| 3621 jni_CallStaticVoidMethodV, | |
| 3622 jni_CallStaticVoidMethodA, | |
| 3623 | |
| 3624 jni_GetStaticFieldID, | |
| 3625 | |
| 3626 jni_GetStaticObjectField, | |
| 3627 jni_GetStaticBooleanField, | |
| 3628 jni_GetStaticByteField, | |
| 3629 jni_GetStaticCharField, | |
| 3630 jni_GetStaticShortField, | |
| 3631 jni_GetStaticIntField, | |
| 3632 jni_GetStaticLongField, | |
| 3633 jni_GetStaticFloatField, | |
| 3634 jni_GetStaticDoubleField, | |
| 3635 | |
| 3636 jni_SetStaticObjectField, | |
| 3637 jni_SetStaticBooleanField, | |
| 3638 jni_SetStaticByteField, | |
| 3639 jni_SetStaticCharField, | |
| 3640 jni_SetStaticShortField, | |
| 3641 jni_SetStaticIntField, | |
| 3642 jni_SetStaticLongField, | |
| 3643 jni_SetStaticFloatField, | |
| 3644 jni_SetStaticDoubleField, | |
| 3645 | |
| 3646 jni_NewString, | |
| 3647 jni_GetStringLength, | |
| 3648 jni_GetStringChars, | |
| 3649 jni_ReleaseStringChars, | |
| 3650 | |
| 3651 jni_NewStringUTF, | |
| 3652 jni_GetStringUTFLength, | |
| 3653 jni_GetStringUTFChars, | |
| 3654 jni_ReleaseStringUTFChars, | |
| 3655 | |
| 3656 jni_GetArrayLength, | |
| 3657 | |
| 3658 jni_NewObjectArray, | |
| 3659 jni_GetObjectArrayElement, | |
| 3660 jni_SetObjectArrayElement, | |
| 3661 | |
| 3662 jni_NewBooleanArray, | |
| 3663 jni_NewByteArray, | |
| 3664 jni_NewCharArray, | |
| 3665 jni_NewShortArray, | |
| 3666 jni_NewIntArray, | |
| 3667 jni_NewLongArray, | |
| 3668 jni_NewFloatArray, | |
| 3669 jni_NewDoubleArray, | |
| 3670 | |
| 3671 jni_GetBooleanArrayElements, | |
| 3672 jni_GetByteArrayElements, | |
| 3673 jni_GetCharArrayElements, | |
| 3674 jni_GetShortArrayElements, | |
| 3675 jni_GetIntArrayElements, | |
| 3676 jni_GetLongArrayElements, | |
| 3677 jni_GetFloatArrayElements, | |
| 3678 jni_GetDoubleArrayElements, | |
| 3679 | |
| 3680 jni_ReleaseBooleanArrayElements, | |
| 3681 jni_ReleaseByteArrayElements, | |
| 3682 jni_ReleaseCharArrayElements, | |
| 3683 jni_ReleaseShortArrayElements, | |
| 3684 jni_ReleaseIntArrayElements, | |
| 3685 jni_ReleaseLongArrayElements, | |
| 3686 jni_ReleaseFloatArrayElements, | |
| 3687 jni_ReleaseDoubleArrayElements, | |
| 3688 | |
| 3689 jni_GetBooleanArrayRegion, | |
| 3690 jni_GetByteArrayRegion, | |
| 3691 jni_GetCharArrayRegion, | |
| 3692 jni_GetShortArrayRegion, | |
| 3693 jni_GetIntArrayRegion, | |
| 3694 jni_GetLongArrayRegion, | |
| 3695 jni_GetFloatArrayRegion, | |
| 3696 jni_GetDoubleArrayRegion, | |
| 3697 | |
| 3698 jni_SetBooleanArrayRegion, | |
| 3699 jni_SetByteArrayRegion, | |
| 3700 jni_SetCharArrayRegion, | |
| 3701 jni_SetShortArrayRegion, | |
| 3702 jni_SetIntArrayRegion, | |
| 3703 jni_SetLongArrayRegion, | |
| 3704 jni_SetFloatArrayRegion, | |
| 3705 jni_SetDoubleArrayRegion, | |
| 3706 | |
| 3707 jni_RegisterNatives, | |
| 3708 jni_UnregisterNatives, | |
| 3709 | |
| 3710 jni_MonitorEnter, | |
| 3711 jni_MonitorExit, | |
| 3712 | |
| 3713 jni_GetJavaVM, | |
| 3714 | |
| 3715 jni_GetStringRegion, | |
| 3716 jni_GetStringUTFRegion, | |
| 3717 | |
| 3718 jni_GetPrimitiveArrayCritical, | |
| 3719 jni_ReleasePrimitiveArrayCritical, | |
| 3720 | |
| 3721 jni_GetStringCritical, | |
| 3722 jni_ReleaseStringCritical, | |
| 3723 | |
| 3724 jni_NewWeakGlobalRef, | |
| 3725 jni_DeleteWeakGlobalRef, | |
| 3726 | |
| 3727 jni_ExceptionCheck, | |
| 3728 | |
| 3729 jni_NewDirectByteBuffer, | |
| 3730 jni_GetDirectBufferAddress, | |
| 3731 jni_GetDirectBufferCapacity, | |
| 3732 | |
| 3733 // New 1_6 features | |
| 3734 | |
| 3735 jni_GetObjectRefType | |
| 3736 }; | |
| 3737 | |
| 3738 | |
| 3739 // For jvmti use to modify jni function table. | |
| 3740 // Java threads in native contiues to run until it is transitioned | |
| 3741 // to VM at safepoint. Before the transition or before it is blocked | |
| 3742 // for safepoint it may access jni function table. VM could crash if | |
| 3743 // any java thread access the jni function table in the middle of memcpy. | |
| 3744 // To avoid this each function pointers are copied automically. | |
| 3745 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) { | |
| 3746 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); | |
| 3747 intptr_t *a = (intptr_t *) jni_functions(); | |
| 3748 intptr_t *b = (intptr_t *) new_jni_NativeInterface; | |
| 3749 for (uint i=0; i < sizeof(struct JNINativeInterface_)/sizeof(void *); i++) { | |
| 3750 Atomic::store_ptr(*b++, a++); | |
| 3751 } | |
| 3752 } | |
| 3753 | |
| 3754 void quicken_jni_functions() { | |
| 3755 // Replace Get<Primitive>Field with fast versions | |
| 3756 if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access() | |
| 3757 && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls | |
| 3758 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2) | |
| 3759 // windows x86 currently needs SEH wrapper and the gain of the fast | |
| 3760 // versions currently isn't certain for server vm on uniprocessor. | |
| 3761 && os::is_MP() | |
| 3762 #endif | |
| 3763 ) { | |
| 3764 address func; | |
| 3765 func = JNI_FastGetField::generate_fast_get_boolean_field(); | |
| 3766 if (func != (address)-1) { | |
| 3767 jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func; | |
| 3768 } | |
| 3769 func = JNI_FastGetField::generate_fast_get_byte_field(); | |
| 3770 if (func != (address)-1) { | |
| 3771 jni_NativeInterface.GetByteField = (GetByteField_t)func; | |
| 3772 } | |
| 3773 func = JNI_FastGetField::generate_fast_get_char_field(); | |
| 3774 if (func != (address)-1) { | |
| 3775 jni_NativeInterface.GetCharField = (GetCharField_t)func; | |
| 3776 } | |
| 3777 func = JNI_FastGetField::generate_fast_get_short_field(); | |
| 3778 if (func != (address)-1) { | |
| 3779 jni_NativeInterface.GetShortField = (GetShortField_t)func; | |
| 3780 } | |
| 3781 func = JNI_FastGetField::generate_fast_get_int_field(); | |
| 3782 if (func != (address)-1) { | |
| 3783 jni_NativeInterface.GetIntField = (GetIntField_t)func; | |
| 3784 } | |
| 3785 func = JNI_FastGetField::generate_fast_get_long_field(); | |
| 3786 if (func != (address)-1) { | |
| 3787 jni_NativeInterface.GetLongField = (GetLongField_t)func; | |
| 3788 } | |
| 3789 func = JNI_FastGetField::generate_fast_get_float_field(); | |
| 3790 if (func != (address)-1) { | |
| 3791 jni_NativeInterface.GetFloatField = (GetFloatField_t)func; | |
| 3792 } | |
| 3793 func = JNI_FastGetField::generate_fast_get_double_field(); | |
| 3794 if (func != (address)-1) { | |
| 3795 jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func; | |
| 3796 } | |
| 3797 } | |
| 3798 } | |
| 3799 | |
| 3800 // Returns the function structure | |
| 3801 struct JNINativeInterface_* jni_functions() { | |
|
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|
3802 #if INCLUDE_JNI_CHECK |
| 0 | 3803 if (CheckJNICalls) return jni_functions_check(); |
|
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|
3804 #endif // INCLUDE_JNI_CHECK |
| 0 | 3805 return &jni_NativeInterface; |
| 3806 } | |
| 3807 | |
| 3808 // Returns the function structure | |
| 3809 struct JNINativeInterface_* jni_functions_nocheck() { | |
| 3810 return &jni_NativeInterface; | |
| 3811 } | |
| 3812 | |
| 3813 | |
| 3814 // Invocation API | |
| 3815 | |
| 3816 | |
| 3817 // Forward declaration | |
| 3818 extern const struct JNIInvokeInterface_ jni_InvokeInterface; | |
| 3819 | |
| 3820 // Global invocation API vars | |
| 3821 volatile jint vm_created = 0; | |
| 3822 // Indicate whether it is safe to recreate VM | |
| 3823 volatile jint safe_to_recreate_vm = 1; | |
| 3824 struct JavaVM_ main_vm = {&jni_InvokeInterface}; | |
| 3825 | |
| 3826 | |
| 3827 #define JAVASTACKSIZE (400 * 1024) /* Default size of a thread java stack */ | |
| 3828 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL }; | |
| 3829 | |
| 4006 | 3830 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint |
| 3831 , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref)); | |
| 0 | 3832 |
| 3833 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) { | |
|
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|
3834 HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(args_); |
| 0 | 3835 JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_; |
| 3836 jint ret = JNI_ERR; | |
| 3837 DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret); | |
| 3838 | |
| 3839 if (Threads::is_supported_jni_version(args->version)) { | |
| 3840 ret = JNI_OK; | |
| 3841 } | |
| 3842 // 1.1 style no longer supported in hotspot. | |
| 3843 // According the JNI spec, we should update args->version on return. | |
| 3844 // We also use the structure to communicate with launcher about default | |
| 3845 // stack size. | |
| 3846 if (args->version == JNI_VERSION_1_1) { | |
| 3847 args->version = JNI_VERSION_1_2; | |
| 3848 // javaStackSize is int in arguments structure | |
| 3849 assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow"); | |
| 3850 args->javaStackSize = (jint)(ThreadStackSize * K); | |
| 3851 } | |
| 3852 return ret; | |
| 3853 } | |
| 3854 | |
| 3779 | 3855 #ifndef PRODUCT |
| 3856 | |
| 10405 | 3857 #include "gc_implementation/shared/gcTimer.hpp" |
| 4708 | 3858 #include "gc_interface/collectedHeap.hpp" |
|
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3859 #if INCLUDE_ALL_GCS |
|
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|
3860 #include "gc_implementation/g1/heapRegionRemSet.hpp" |
|
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|
3861 #endif |
| 3779 | 3862 #include "utilities/quickSort.hpp" |
| 12215 | 3863 #include "utilities/ostream.hpp" |
| 7171 | 3864 #if INCLUDE_VM_STRUCTS |
| 3865 #include "runtime/vmStructs.hpp" | |
| 3866 #endif | |
| 3779 | 3867 |
| 4708 | 3868 #define run_unit_test(unit_test_function_call) \ |
| 3869 tty->print_cr("Running test: " #unit_test_function_call); \ | |
| 3870 unit_test_function_call | |
| 3871 | |
|
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|
3872 // Forward declaration |
|
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|
3873 void TestReservedSpace_test(); |
|
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|
3874 void TestReserveMemorySpecial_test(); |
|
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|
3875 void TestVirtualSpace_test(); |
|
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|
3876 void TestMetaspaceAux_test(); |
| 12902 | 3877 void TestMetachunk_test(); |
|
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|
3878 void TestVirtualSpaceNode_test(); |
|
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diff
changeset
|
3879 void TestOldFreeSpaceCalculation_test(); |
|
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f7f0c6a77d6d
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changeset
|
3880 void TestNewSize_test(); |
|
12305
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|
3881 #if INCLUDE_ALL_GCS |
|
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diff
changeset
|
3882 void TestG1BiasedArray_test(); |
|
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diff
changeset
|
3883 void TestBufferingOopClosure_test(); |
|
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|
3884 #endif |
|
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|
3885 |
| 3779 | 3886 void execute_internal_vm_tests() { |
| 3887 if (ExecuteInternalVMTests) { | |
| 4708 | 3888 tty->print_cr("Running internal VM tests"); |
|
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diff
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|
3889 run_unit_test(TestReservedSpace_test()); |
|
4c84d351cca9
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11092
diff
changeset
|
3890 run_unit_test(TestReserveMemorySpecial_test()); |
|
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|
3891 run_unit_test(TestVirtualSpace_test()); |
|
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changeset
|
3892 run_unit_test(TestMetaspaceAux_test()); |
| 12902 | 3893 run_unit_test(TestMetachunk_test()); |
|
12979
1d1ea10fe09f
8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it.
mgerdin
parents:
12902
diff
changeset
|
3894 run_unit_test(TestVirtualSpaceNode_test()); |
|
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8793
diff
changeset
|
3895 run_unit_test(GlobalDefinitions::test_globals()); |
| 10405 | 3896 run_unit_test(GCTimerAllTest::all()); |
| 4708 | 3897 run_unit_test(arrayOopDesc::test_max_array_length()); |
| 3898 run_unit_test(CollectedHeap::test_is_in()); | |
| 3899 run_unit_test(QuickSort::test_quick_sort()); | |
| 6162 | 3900 run_unit_test(AltHashing::test_alt_hash()); |
| 12215 | 3901 run_unit_test(test_loggc_filename()); |
|
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14179
diff
changeset
|
3902 run_unit_test(TestOldFreeSpaceCalculation_test()); |
|
14359
f7f0c6a77d6d
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
14356
diff
changeset
|
3903 run_unit_test(TestNewSize_test()); |
| 7171 | 3904 #if INCLUDE_VM_STRUCTS |
| 3905 run_unit_test(VMStructs::test()); | |
| 3906 #endif | |
|
10333
6702da6b6082
8014405: G1: PerRegionTable::fl_mem_size() calculates size of the free list using wrong element sizes
tschatzl
parents:
9060
diff
changeset
|
3907 #if INCLUDE_ALL_GCS |
|
12305
a19bea467577
7163191: G1: introduce a "heap spanning table" abstraction
tschatzl
parents:
12269
diff
changeset
|
3908 run_unit_test(TestG1BiasedArray_test()); |
|
10333
6702da6b6082
8014405: G1: PerRegionTable::fl_mem_size() calculates size of the free list using wrong element sizes
tschatzl
parents:
9060
diff
changeset
|
3909 run_unit_test(HeapRegionRemSet::test_prt()); |
|
14355
937cf56dede6
8033764: Remove the usage of StarTask from BufferingOopClosure
stefank
parents:
14314
diff
changeset
|
3910 run_unit_test(TestBufferingOopClosure_test()); |
|
10333
6702da6b6082
8014405: G1: PerRegionTable::fl_mem_size() calculates size of the free list using wrong element sizes
tschatzl
parents:
9060
diff
changeset
|
3911 #endif |
|
4070
6fd81579526f
7102044: G1: VM crashes with assert(old_end != new_end) failed: don't call this otherwise
brutisso
parents:
4006
diff
changeset
|
3912 tty->print_cr("All internal VM tests passed"); |
| 3779 | 3913 } |
| 3914 } | |
| 3915 | |
| 4708 | 3916 #undef run_unit_test |
| 3917 | |
| 3779 | 3918 #endif |
| 3919 | |
| 4006 | 3920 DT_RETURN_MARK_DECL(CreateJavaVM, jint |
| 3921 , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref)); | |
| 0 | 3922 |
| 3923 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) { | |
|
14278
a3ba776d6ab6
8030812: Change the solaris DTrace implementation to use USDT2 instead of USDT1
sla
parents:
14179
diff
changeset
|
3924 HOTSPOT_JNI_CREATEJAVAVM_ENTRY((void **) vm, penv, args); |
| 0 | 3925 |
| 3926 jint result = JNI_ERR; | |
| 3927 DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result); | |
| 3928 | |
| 1078 | 3929 // We're about to use Atomic::xchg for synchronization. Some Zero |
| 3930 // platforms use the GCC builtin __sync_lock_test_and_set for this, | |
| 3931 // but __sync_lock_test_and_set is not guaranteed to do what we want | |
| 3932 // on all architectures. So we check it works before relying on it. | |
| 3933 #if defined(ZERO) && defined(ASSERT) | |
| 3934 { | |
| 3935 jint a = 0xcafebabe; | |
| 3936 jint b = Atomic::xchg(0xdeadbeef, &a); | |
| 3937 void *c = &a; | |
| 3938 void *d = Atomic::xchg_ptr(&b, &c); | |
| 1132 | 3939 assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works"); |
| 1078 | 3940 assert(c == &b && d == &a, "Atomic::xchg_ptr() works"); |
| 3941 } | |
| 3942 #endif // ZERO && ASSERT | |
| 3943 | |
| 0 | 3944 // At the moment it's only possible to have one Java VM, |
| 3945 // since some of the runtime state is in global variables. | |
| 3946 | |
| 3947 // We cannot use our mutex locks here, since they only work on | |
| 3948 // Threads. We do an atomic compare and exchange to ensure only | |
| 3949 // one thread can call this method at a time | |
| 3950 | |
| 3951 // We use Atomic::xchg rather than Atomic::add/dec since on some platforms | |
| 3952 // the add/dec implementations are dependent on whether we are running | |
| 3953 // on a multiprocessor, and at this stage of initialization the os::is_MP | |
| 3954 // function used to determine this will always return false. Atomic::xchg | |
| 3955 // does not have this problem. | |
| 3956 if (Atomic::xchg(1, &vm_created) == 1) { | |
|
11089
f323bbb0e6c1
8019833: Wrong JNI error code for preexisting JVM
coleenp
parents:
11059
diff
changeset
|
3957 return JNI_EEXIST; // already created, or create attempt in progress |
| 0 | 3958 } |
| 3959 if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) { | |
| 3960 return JNI_ERR; // someone tried and failed and retry not allowed. | |
| 3961 } | |
| 3962 | |
| 3963 assert(vm_created == 1, "vm_created is true during the creation"); | |
| 3964 | |
| 3965 /** | |
| 3966 * Certain errors during initialization are recoverable and do not | |
| 3967 * prevent this method from being called again at a later time | |
| 3968 * (perhaps with different arguments). However, at a certain | |
| 3969 * point during initialization if an error occurs we cannot allow | |
| 3970 * this function to be called again (or it will crash). In those | |
| 3971 * situations, the 'canTryAgain' flag is set to false, which atomically | |
| 3972 * sets safe_to_recreate_vm to 1, such that any new call to | |
| 3973 * JNI_CreateJavaVM will immediately fail using the above logic. | |
| 3974 */ | |
| 3975 bool can_try_again = true; | |
| 3976 | |
| 3977 result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again); | |
| 3978 if (result == JNI_OK) { | |
| 3979 JavaThread *thread = JavaThread::current(); | |
|
14297
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
3980 assert(!thread->has_pending_exception(), "should have returned not OK"); |
| 0 | 3981 /* thread is thread_in_vm here */ |
| 3982 *vm = (JavaVM *)(&main_vm); | |
| 3983 *(JNIEnv**)penv = thread->jni_environment(); | |
| 3984 | |
| 3985 // Tracks the time application was running before GC | |
| 3986 RuntimeService::record_application_start(); | |
| 3987 | |
| 3988 // Notify JVMTI | |
| 3989 if (JvmtiExport::should_post_thread_life()) { | |
| 3990 JvmtiExport::post_thread_start(thread); | |
| 3991 } | |
|
4800
94ec88ca68e2
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
4708
diff
changeset
|
3992 |
| 10405 | 3993 EventThreadStart event; |
| 3994 if (event.should_commit()) { | |
| 3995 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
| 3996 event.commit(); | |
| 3997 } | |
|
4800
94ec88ca68e2
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
4708
diff
changeset
|
3998 |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
3999 #ifndef PRODUCT |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4000 #ifndef TARGET_OS_FAMILY_windows |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4001 #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f() |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4002 #endif |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4003 |
| 0 | 4004 // Check if we should compile all classes on bootclasspath |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4005 if (CompileTheWorld) ClassLoader::compile_the_world(); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4006 if (ReplayCompiles) ciReplay::replay(thread); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4007 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4008 // Some platforms (like Win*) need a wrapper around these test |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4009 // functions in order to properly handle error conditions. |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4010 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4011 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4012 #endif |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
11089
diff
changeset
|
4013 |
| 0 | 4014 // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving. |
| 4015 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); | |
| 4016 } else { | |
|
14297
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4017 // If create_vm exits because of a pending exception, exit with that |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4018 // exception. In the future when we figure out how to reclaim memory, |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4019 // we may be able to exit with JNI_ERR and allow the calling application |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4020 // to continue. |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4021 if (Universe::is_fully_initialized()) { |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4022 // otherwise no pending exception possible - VM will already have aborted |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4023 JavaThread* THREAD = JavaThread::current(); |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4024 if (HAS_PENDING_EXCEPTION) { |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4025 HandleMark hm; |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4026 vm_exit_during_initialization(Handle(THREAD, PENDING_EXCEPTION)); |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4027 } |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4028 } |
|
febc6428bc79
8028275: Metaspace ShrinkGrowTest causes fatal error if run with JFR
coleenp
parents:
14290
diff
changeset
|
4029 |
| 0 | 4030 if (can_try_again) { |
| 4031 // reset safe_to_recreate_vm to 1 so that retrial would be possible | |
| 4032 safe_to_recreate_vm = 1; | |
| 4033 } | |
| 4034 | |
| 4035 // Creation failed. We must reset vm_created | |
| 4036 *vm = 0; | |
| 4037 *(JNIEnv**)penv = 0; | |
| 4038 // reset vm_created last to avoid race condition. Use OrderAccess to | |
| 4039 // control both compiler and architectural-based reordering. | |
| 4040 OrderAccess::release_store(&vm_created, 0); | |
| 4041 } | |
| 4042 | |
| 4043 return result; | |
| 4044 } | |
| 4045 | |
| 4046 | |
| 4047 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) { | |
| 4048 // See bug 4367188, the wrapper can sometimes cause VM crashes | |
| 4049 // JNIWrapper("GetCreatedJavaVMs"); | |
| 14380 | 4050 |
|
14278
a3ba776d6ab6
8030812: Change the solaris DTrace implementation to use USDT2 instead of USDT1
sla
parents:
14179
diff
changeset
|
4051 HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY((void **) vm_buf, bufLen, (uintptr_t *) numVMs); |
| 14380 | 4052 |
| 0 | 4053 if (vm_created) { |
| 4054 if (numVMs != NULL) *numVMs = 1; | |
| 4055 if (bufLen > 0) *vm_buf = (JavaVM *)(&main_vm); | |
| 4056 } else { | |
| 4057 if (numVMs != NULL) *numVMs = 0; | |
| 4058 } | |
|
14278
a3ba776d6ab6
8030812: Change the solaris DTrace implementation to use USDT2 instead of USDT1
sla
parents:
14179
diff
changeset
|
4059 HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(JNI_OK); |
| 0 | 4060 return JNI_OK; |
| 4061 } | |
| 4062 | |
| 4063 extern "C" { | |
| 4064 | |
| 4006 | 4065 DT_RETURN_MARK_DECL(DestroyJavaVM, jint |
| 4066 , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref)); | |
| 0 | 4067 |
| 4068 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) { | |
|
14278
a3ba776d6ab6
8030812: Change the solaris DTrace implementation to use USDT2 instead of USDT1
sla
parents:
14179
diff
changeset
|
4069 HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(vm); |
| 0 | 4070 jint res = JNI_ERR; |
| 4071 DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res); | |
| 4072 | |
| 4073 if (!vm_created) { | |
| 4074 res = JNI_ERR; | |
| 4075 return res; | |
| 4076 } | |
| 4077 | |
| 4078 JNIWrapper("DestroyJavaVM"); | |
| 4079 JNIEnv *env; | |
| 4080 JavaVMAttachArgs destroyargs; | |
| 4081 destroyargs.version = CurrentVersion; | |
| 4082 destroyargs.name = (char *)"DestroyJavaVM"; | |
| 4083 destroyargs.group = NULL; | |
| 4084 res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs); | |
| 4085 if (res != JNI_OK) { | |
| 4086 return res; | |
| 4087 } | |
| 4088 | |
| 4089 // Since this is not a JVM_ENTRY we have to set the thread state manually before entering. | |
| 4090 JavaThread* thread = JavaThread::current(); | |
| 4091 ThreadStateTransition::transition_from_native(thread, _thread_in_vm); | |
| 4092 if (Threads::destroy_vm()) { | |
| 4093 // Should not change thread state, VM is gone | |
| 4094 vm_created = false; | |
| 4095 res = JNI_OK; | |
| 4096 return res; | |
| 4097 } else { | |
| 4098 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); | |
| 4099 res = JNI_ERR; | |
| 4100 return res; | |
| 4101 } | |
| 4102 } | |
| 4103 | |
| 4104 | |
| 4105 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) { | |
| 4106 JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args; | |
| 4107 | |
| 4108 // Check below commented out from JDK1.2fcs as well | |
| 4109 /* | |
| 4110 if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) { | |
| 4111 return JNI_EVERSION; | |
| 4112 } | |
| 4113 */ | |
| 4114 | |
| 4115 Thread* t = ThreadLocalStorage::get_thread_slow(); | |
| 4116 if (t != NULL) { | |
| 4117 // If the thread has been attached this operation is a no-op | |
| 4118 *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment(); | |
| 4119 return JNI_OK; | |
| 4120 } | |
| 4121 | |
| 4122 // Create a thread and mark it as attaching so it will be skipped by the | |
| 4123 // ThreadsListEnumerator - see CR 6404306 | |
| 4124 JavaThread* thread = new JavaThread(true); | |
| 4125 | |
| 4126 // Set correct safepoint info. The thread is going to call into Java when | |
| 4127 // initializing the Java level thread object. Hence, the correct state must | |
| 4128 // be set in order for the Safepoint code to deal with it correctly. | |
| 4129 thread->set_thread_state(_thread_in_vm); | |
| 4130 // Must do this before initialize_thread_local_storage | |
| 4131 thread->record_stack_base_and_size(); | |
|
1290
c8a467bf56ad
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
1142
diff
changeset
|
4132 |
| 0 | 4133 thread->initialize_thread_local_storage(); |
| 4134 | |
| 4135 if (!os::create_attached_thread(thread)) { | |
| 4136 delete thread; | |
| 4137 return JNI_ERR; | |
| 4138 } | |
|
1290
c8a467bf56ad
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
1142
diff
changeset
|
4139 // Enable stack overflow checks |
|
c8a467bf56ad
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
1142
diff
changeset
|
4140 thread->create_stack_guard_pages(); |
|
c8a467bf56ad
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
1142
diff
changeset
|
4141 |
| 0 | 4142 thread->initialize_tlab(); |
| 4143 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4144 thread->cache_global_variables(); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4145 |
| 0 | 4146 // Crucial that we do not have a safepoint check for this thread, since it has |
| 4147 // not been added to the Thread list yet. | |
| 4148 { Threads_lock->lock_without_safepoint_check(); | |
| 4149 // This must be inside this lock in order to get FullGCALot to work properly, i.e., to | |
| 4150 // avoid this thread trying to do a GC before it is added to the thread-list | |
| 4151 thread->set_active_handles(JNIHandleBlock::allocate_block()); | |
| 4152 Threads::add(thread, daemon); | |
| 4153 Threads_lock->unlock(); | |
| 4154 } | |
| 4155 // Create thread group and name info from attach arguments | |
| 4156 oop group = NULL; | |
| 4157 char* thread_name = NULL; | |
| 4158 if (args != NULL && Threads::is_supported_jni_version(args->version)) { | |
| 4159 group = JNIHandles::resolve(args->group); | |
| 4160 thread_name = args->name; // may be NULL | |
| 4161 } | |
| 4162 if (group == NULL) group = Universe::main_thread_group(); | |
| 4163 | |
| 4164 // Create Java level thread object and attach it to this thread | |
| 4165 bool attach_failed = false; | |
| 4166 { | |
| 4167 EXCEPTION_MARK; | |
| 4168 HandleMark hm(THREAD); | |
| 4169 Handle thread_group(THREAD, group); | |
| 4170 thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD); | |
| 4171 if (HAS_PENDING_EXCEPTION) { | |
| 4172 CLEAR_PENDING_EXCEPTION; | |
| 4173 // cleanup outside the handle mark. | |
| 4174 attach_failed = true; | |
| 4175 } | |
| 4176 } | |
| 4177 | |
| 4178 if (attach_failed) { | |
| 4179 // Added missing cleanup | |
| 4180 thread->cleanup_failed_attach_current_thread(); | |
| 4181 return JNI_ERR; | |
| 4182 } | |
| 4183 | |
| 4184 // mark the thread as no longer attaching | |
| 4185 // this uses a fence to push the change through so we don't have | |
| 4186 // to regrab the threads_lock | |
| 4006 | 4187 thread->set_done_attaching_via_jni(); |
| 0 | 4188 |
| 4189 // Set java thread status. | |
| 4190 java_lang_Thread::set_thread_status(thread->threadObj(), | |
| 4191 java_lang_Thread::RUNNABLE); | |
| 4192 | |
| 4193 // Notify the debugger | |
| 4194 if (JvmtiExport::should_post_thread_life()) { | |
| 4195 JvmtiExport::post_thread_start(thread); | |
| 4196 } | |
| 4197 | |
| 10405 | 4198 EventThreadStart event; |
| 4199 if (event.should_commit()) { | |
| 4200 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
| 4201 event.commit(); | |
| 4202 } | |
|
4800
94ec88ca68e2
7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents:
4708
diff
changeset
|
4203 |
| 0 | 4204 *(JNIEnv**)penv = thread->jni_environment(); |
| 4205 | |
| 4206 // Now leaving the VM, so change thread_state. This is normally automatically taken care | |
| 4207 // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by | |
| 4208 // using ThreadStateTransition::transition, we do a callback to the safepoint code if | |
| 4209 // needed. | |
| 4210 | |
| 4211 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); | |
| 4212 | |
| 4213 // Perform any platform dependent FPU setup | |
| 4214 os::setup_fpu(); | |
| 4215 | |
| 4216 return JNI_OK; | |
| 4217 } | |
| 4218 | |
| 4219 | |
| 4220 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) { | |
|
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4221 HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(vm, penv, _args); |
| 0 | 4222 if (!vm_created) { |
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4223 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN((uint32_t) JNI_ERR); |
| 0 | 4224 return JNI_ERR; |
| 4225 } | |
| 4226 | |
| 4227 JNIWrapper("AttachCurrentThread"); | |
| 4228 jint ret = attach_current_thread(vm, penv, _args, false); | |
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4229 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(ret); |
| 0 | 4230 return ret; |
| 4231 } | |
| 4232 | |
| 4233 | |
| 4234 jint JNICALL jni_DetachCurrentThread(JavaVM *vm) { | |
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4235 HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(vm); |
| 0 | 4236 VM_Exit::block_if_vm_exited(); |
| 4237 | |
| 4238 JNIWrapper("DetachCurrentThread"); | |
| 4239 | |
| 4240 // If the thread has been deattacted the operations is a no-op | |
| 4241 if (ThreadLocalStorage::thread() == NULL) { | |
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4242 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(JNI_OK); |
| 0 | 4243 return JNI_OK; |
| 4244 } | |
| 4245 | |
| 4246 JavaThread* thread = JavaThread::current(); | |
| 4247 if (thread->has_last_Java_frame()) { | |
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4248 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN((uint32_t) JNI_ERR); |
| 0 | 4249 // Can't detach a thread that's running java, that can't work. |
| 4250 return JNI_ERR; | |
| 4251 } | |
| 4252 | |
| 4253 // Safepoint support. Have to do call-back to safepoint code, if in the | |
| 4254 // middel of a safepoint operation | |
| 4255 ThreadStateTransition::transition_from_native(thread, _thread_in_vm); | |
| 4256 | |
| 4257 // XXX: Note that JavaThread::exit() call below removes the guards on the | |
| 4258 // stack pages set up via enable_stack_{red,yellow}_zone() calls | |
| 4259 // above in jni_AttachCurrentThread. Unfortunately, while the setting | |
| 4260 // of the guards is visible in jni_AttachCurrentThread above, | |
| 4261 // the removal of the guards is buried below in JavaThread::exit() | |
| 4262 // here. The abstraction should be more symmetrically either exposed | |
| 4263 // or hidden (e.g. it could probably be hidden in the same | |
| 4264 // (platform-dependent) methods where we do alternate stack | |
| 4265 // maintenance work?) | |
| 4266 thread->exit(false, JavaThread::jni_detach); | |
| 4267 delete thread; | |
| 4268 | |
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4269 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(JNI_OK); |
| 0 | 4270 return JNI_OK; |
| 4271 } | |
| 4272 | |
| 4006 | 4273 DT_RETURN_MARK_DECL(GetEnv, jint |
| 4274 , HOTSPOT_JNI_GETENV_RETURN(_ret_ref)); | |
| 0 | 4275 |
| 4276 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) { | |
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4277 HOTSPOT_JNI_GETENV_ENTRY(vm, penv, version); |
| 0 | 4278 jint ret = JNI_ERR; |
| 4279 DT_RETURN_MARK(GetEnv, jint, (const jint&)ret); | |
| 4280 | |
| 4281 if (!vm_created) { | |
| 4282 *penv = NULL; | |
| 4283 ret = JNI_EDETACHED; | |
| 4284 return ret; | |
| 4285 } | |
| 4286 | |
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4287 if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) { |
| 0 | 4288 return ret; |
| 4289 } | |
| 4290 | |
| 4291 #ifndef JVMPI_VERSION_1 | |
| 4292 // need these in order to be polite about older agents | |
| 4293 #define JVMPI_VERSION_1 ((jint)0x10000001) | |
| 4294 #define JVMPI_VERSION_1_1 ((jint)0x10000002) | |
| 4295 #define JVMPI_VERSION_1_2 ((jint)0x10000003) | |
| 4296 #endif // !JVMPI_VERSION_1 | |
| 4297 | |
| 4298 Thread* thread = ThreadLocalStorage::thread(); | |
| 4299 if (thread != NULL && thread->is_Java_thread()) { | |
| 4300 if (Threads::is_supported_jni_version_including_1_1(version)) { | |
| 4301 *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment(); | |
| 4302 ret = JNI_OK; | |
| 4303 return ret; | |
| 4304 | |
| 4305 } else if (version == JVMPI_VERSION_1 || | |
| 4306 version == JVMPI_VERSION_1_1 || | |
| 4307 version == JVMPI_VERSION_1_2) { | |
| 4308 tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported."); | |
| 4309 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI)."); | |
| 4310 ret = JNI_EVERSION; | |
| 4311 return ret; | |
| 4312 } else if (JvmtiExport::is_jvmdi_version(version)) { | |
| 4313 tty->print_cr("FATAL ERROR: JVMDI is no longer supported."); | |
| 4314 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI)."); | |
| 4315 ret = JNI_EVERSION; | |
| 4316 return ret; | |
| 4317 } else { | |
| 4318 *penv = NULL; | |
| 4319 ret = JNI_EVERSION; | |
| 4320 return ret; | |
| 4321 } | |
| 4322 } else { | |
| 4323 *penv = NULL; | |
| 4324 ret = JNI_EDETACHED; | |
| 4325 return ret; | |
| 4326 } | |
| 4327 } | |
| 4328 | |
| 4329 | |
| 4330 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) { | |
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4331 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(vm, penv, _args); |
| 0 | 4332 if (!vm_created) { |
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4333 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN((uint32_t) JNI_ERR); |
| 0 | 4334 return JNI_ERR; |
| 4335 } | |
| 4336 | |
| 4337 JNIWrapper("AttachCurrentThreadAsDaemon"); | |
| 4338 jint ret = attach_current_thread(vm, penv, _args, true); | |
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4339 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(ret); |
| 0 | 4340 return ret; |
| 4341 } | |
| 4342 | |
| 4343 | |
| 4344 } // End extern "C" | |
| 4345 | |
| 4346 const struct JNIInvokeInterface_ jni_InvokeInterface = { | |
| 4347 NULL, | |
| 4348 NULL, | |
| 4349 NULL, | |
| 4350 | |
| 4351 jni_DestroyJavaVM, | |
| 4352 jni_AttachCurrentThread, | |
| 4353 jni_DetachCurrentThread, | |
| 4354 jni_GetEnv, | |
| 4355 jni_AttachCurrentThreadAsDaemon | |
| 4356 }; |