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rev 6875 : 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
Reviewed-by: mgerdin, coleenp, bdelsart
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--- old/src/share/vm/prims/jni.cpp
+++ new/src/share/vm/prims/jni.cpp
1 1 /*
2 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
3 3 * Copyright (c) 2012 Red Hat, Inc.
4 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 5 *
6 6 * This code is free software; you can redistribute it and/or modify it
7 7 * under the terms of the GNU General Public License version 2 only, as
8 8 * published by the Free Software Foundation.
9 9 *
10 10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 13 * version 2 for more details (a copy is included in the LICENSE file that
14 14 * accompanied this code).
15 15 *
16 16 * You should have received a copy of the GNU General Public License version
17 17 * 2 along with this work; if not, write to the Free Software Foundation,
18 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 19 *
20 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 21 * or visit www.oracle.com if you need additional information or have any
22 22 * questions.
23 23 *
24 24 */
25 25
26 26 #include "precompiled.hpp"
27 27 #include "ci/ciReplay.hpp"
28 28 #include "classfile/altHashing.hpp"
29 29 #include "classfile/classLoader.hpp"
30 30 #include "classfile/javaClasses.hpp"
31 31 #include "classfile/symbolTable.hpp"
32 32 #include "classfile/systemDictionary.hpp"
33 33 #include "classfile/vmSymbols.hpp"
34 34 #include "interpreter/linkResolver.hpp"
35 35 #include "utilities/macros.hpp"
36 36 #if INCLUDE_ALL_GCS
37 37 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
38 38 #endif // INCLUDE_ALL_GCS
39 39 #include "memory/allocation.hpp"
40 40 #include "memory/allocation.inline.hpp"
41 41 #include "memory/gcLocker.inline.hpp"
42 42 #include "memory/oopFactory.hpp"
43 43 #include "memory/universe.inline.hpp"
44 44 #include "oops/instanceKlass.hpp"
45 45 #include "oops/instanceOop.hpp"
46 46 #include "oops/markOop.hpp"
47 47 #include "oops/method.hpp"
48 48 #include "oops/objArrayKlass.hpp"
49 49 #include "oops/objArrayOop.hpp"
50 50 #include "oops/oop.inline.hpp"
51 51 #include "oops/symbol.hpp"
52 52 #include "oops/typeArrayKlass.hpp"
53 53 #include "oops/typeArrayOop.hpp"
54 54 #include "prims/jni.h"
55 55 #include "prims/jniCheck.hpp"
56 56 #include "prims/jniExport.hpp"
57 57 #include "prims/jniFastGetField.hpp"
58 58 #include "prims/jvm.h"
59 59 #include "prims/jvm_misc.hpp"
60 60 #include "prims/jvmtiExport.hpp"
61 61 #include "prims/jvmtiThreadState.hpp"
62 62 #include "runtime/compilationPolicy.hpp"
63 63 #include "runtime/fieldDescriptor.hpp"
64 64 #include "runtime/fprofiler.hpp"
65 65 #include "runtime/handles.inline.hpp"
66 66 #include "runtime/interfaceSupport.hpp"
67 67 #include "runtime/java.hpp"
68 68 #include "runtime/javaCalls.hpp"
69 69 #include "runtime/jfieldIDWorkaround.hpp"
70 70 #include "runtime/orderAccess.inline.hpp"
71 71 #include "runtime/reflection.hpp"
72 72 #include "runtime/sharedRuntime.hpp"
73 73 #include "runtime/signature.hpp"
74 74 #include "runtime/thread.inline.hpp"
75 75 #include "runtime/vm_operations.hpp"
76 76 #include "services/memTracker.hpp"
77 77 #include "services/runtimeService.hpp"
78 78 #include "trace/tracing.hpp"
79 79 #include "utilities/defaultStream.hpp"
80 80 #include "utilities/dtrace.hpp"
81 81 #include "utilities/events.hpp"
82 82 #include "utilities/histogram.hpp"
83 83 #ifdef TARGET_OS_FAMILY_linux
84 84 # include "os_linux.inline.hpp"
85 85 #endif
86 86 #ifdef TARGET_OS_FAMILY_solaris
87 87 # include "os_solaris.inline.hpp"
88 88 #endif
89 89 #ifdef TARGET_OS_FAMILY_windows
90 90 # include "os_windows.inline.hpp"
91 91 #endif
92 92 #ifdef TARGET_OS_FAMILY_bsd
93 93 # include "os_bsd.inline.hpp"
94 94 #endif
95 95
96 96 static jint CurrentVersion = JNI_VERSION_1_8;
97 97
98 98
99 99 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace
100 100 // '-return' probe regardless of the return path is taken out of the function.
101 101 // Methods that have multiple return paths use this to avoid having to
102 102 // instrument each return path. Methods that use CHECK or THROW must use this
103 103 // since those macros can cause an immedate uninstrumented return.
104 104 //
105 105 // In order to get the return value, a reference to the variable containing
106 106 // the return value must be passed to the contructor of the object, and
107 107 // the return value must be set before return (since the mark object has
108 108 // a reference to it).
109 109 //
110 110 // Example:
111 111 // DT_RETURN_MARK_DECL(SomeFunc, int);
112 112 // JNI_ENTRY(int, SomeFunc, ...)
113 113 // int return_value = 0;
114 114 // DT_RETURN_MARK(SomeFunc, int, (const int&)return_value);
115 115 // foo(CHECK_0)
116 116 // return_value = 5;
117 117 // return return_value;
118 118 // JNI_END
119 119 #ifndef USDT2
120 120 #define DT_RETURN_MARK_DECL(name, type) \
121 121 HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type); \
122 122 DTRACE_ONLY( \
123 123 class DTraceReturnProbeMark_##name { \
124 124 public: \
125 125 const type& _ret_ref; \
126 126 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \
127 127 ~DTraceReturnProbeMark_##name() { \
128 128 HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref); \
129 129 } \
130 130 } \
131 131 )
132 132 // Void functions are simpler since there's no return value
133 133 #define DT_VOID_RETURN_MARK_DECL(name) \
134 134 HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return); \
135 135 DTRACE_ONLY( \
136 136 class DTraceReturnProbeMark_##name { \
137 137 public: \
138 138 ~DTraceReturnProbeMark_##name() { \
139 139 HS_DTRACE_PROBE0(hotspot_jni, name##__return); \
140 140 } \
141 141 } \
142 142 )
143 143
144 144 #else /* USDT2 */
145 145
146 146 #define DT_RETURN_MARK_DECL(name, type, probe) \
147 147 DTRACE_ONLY( \
148 148 class DTraceReturnProbeMark_##name { \
149 149 public: \
150 150 const type& _ret_ref; \
151 151 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \
152 152 ~DTraceReturnProbeMark_##name() { \
153 153 probe; \
154 154 } \
155 155 } \
156 156 )
157 157 // Void functions are simpler since there's no return value
158 158 #define DT_VOID_RETURN_MARK_DECL(name, probe) \
159 159 DTRACE_ONLY( \
160 160 class DTraceReturnProbeMark_##name { \
161 161 public: \
162 162 ~DTraceReturnProbeMark_##name() { \
163 163 probe; \
164 164 } \
165 165 } \
166 166 )
167 167 #endif /* USDT2 */
168 168
169 169 // Place these macros in the function to mark the return. Non-void
170 170 // functions need the type and address of the return value.
171 171 #define DT_RETURN_MARK(name, type, ref) \
172 172 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) )
173 173 #define DT_VOID_RETURN_MARK(name) \
174 174 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )
175 175
176 176
177 177 // Use these to select distinct code for floating-point vs. non-floating point
178 178 // situations. Used from within common macros where we need slightly
179 179 // different behavior for Float/Double
180 180 #define FP_SELECT_Boolean(intcode, fpcode) intcode
181 181 #define FP_SELECT_Byte(intcode, fpcode) intcode
182 182 #define FP_SELECT_Char(intcode, fpcode) intcode
183 183 #define FP_SELECT_Short(intcode, fpcode) intcode
184 184 #define FP_SELECT_Object(intcode, fpcode) intcode
185 185 #define FP_SELECT_Int(intcode, fpcode) intcode
186 186 #define FP_SELECT_Long(intcode, fpcode) intcode
187 187 #define FP_SELECT_Float(intcode, fpcode) fpcode
188 188 #define FP_SELECT_Double(intcode, fpcode) fpcode
189 189 #define FP_SELECT(TypeName, intcode, fpcode) \
190 190 FP_SELECT_##TypeName(intcode, fpcode)
191 191
192 192 #define COMMA ,
193 193
194 194 // Choose DT_RETURN_MARK macros based on the type: float/double -> void
195 195 // (dtrace doesn't do FP yet)
196 196 #ifndef USDT2
197 197 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \
198 198 FP_SELECT(TypeName, \
199 199 DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )
200 200 #else /* USDT2 */
201 201 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe) \
202 202 FP_SELECT(TypeName, \
203 203 DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) )
204 204 #endif /* USDT2 */
205 205 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \
206 206 FP_SELECT(TypeName, \
207 207 DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) )
208 208
209 209
210 210 // out-of-line helpers for class jfieldIDWorkaround:
211 211
212 212 bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) {
213 213 if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) {
214 214 uintptr_t as_uint = (uintptr_t) id;
215 215 intptr_t offset = raw_instance_offset(id);
216 216 if (is_checked_jfieldID(id)) {
217 217 if (!klass_hash_ok(k, id)) {
218 218 return false;
219 219 }
220 220 }
221 221 return InstanceKlass::cast(k)->contains_field_offset(offset);
222 222 } else {
223 223 JNIid* result = (JNIid*) id;
224 224 #ifdef ASSERT
225 225 return result != NULL && result->is_static_field_id();
226 226 #else
227 227 return result != NULL;
228 228 #endif
229 229 }
230 230 }
231 231
232 232
233 233 intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) {
234 234 if (offset <= small_offset_mask) {
235 235 Klass* field_klass = k;
236 236 Klass* super_klass = field_klass->super();
237 237 // With compressed oops the most super class with nonstatic fields would
238 238 // be the owner of fields embedded in the header.
239 239 while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() &&
240 240 InstanceKlass::cast(super_klass)->contains_field_offset(offset)) {
241 241 field_klass = super_klass; // super contains the field also
242 242 super_klass = field_klass->super();
243 243 }
244 244 debug_only(No_Safepoint_Verifier nosafepoint;)
245 245 uintptr_t klass_hash = field_klass->identity_hash();
246 246 return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place;
247 247 } else {
248 248 #if 0
249 249 #ifndef PRODUCT
250 250 {
251 251 ResourceMark rm;
252 252 warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name());
253 253 }
254 254 #endif
255 255 #endif
256 256 return 0;
257 257 }
258 258 }
259 259
260 260 bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) {
261 261 uintptr_t as_uint = (uintptr_t) id;
262 262 intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask;
263 263 do {
264 264 debug_only(No_Safepoint_Verifier nosafepoint;)
265 265 // Could use a non-blocking query for identity_hash here...
266 266 if ((k->identity_hash() & klass_mask) == klass_hash)
267 267 return true;
268 268 k = k->super();
269 269 } while (k != NULL);
270 270 return false;
271 271 }
272 272
273 273 void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) {
274 274 guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" );
275 275 uintptr_t as_uint = (uintptr_t) id;
276 276 intptr_t offset = raw_instance_offset(id);
277 277 if (VerifyJNIFields) {
278 278 if (is_checked_jfieldID(id)) {
279 279 guarantee(klass_hash_ok(k, id),
280 280 "Bug in native code: jfieldID class must match object");
281 281 } else {
282 282 #if 0
283 283 #ifndef PRODUCT
284 284 if (Verbose) {
285 285 ResourceMark rm;
286 286 warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name());
287 287 }
288 288 #endif
289 289 #endif
290 290 }
291 291 }
292 292 guarantee(InstanceKlass::cast(k)->contains_field_offset(offset),
293 293 "Bug in native code: jfieldID offset must address interior of object");
294 294 }
295 295
296 296 // Wrapper to trace JNI functions
297 297
298 298 #ifdef ASSERT
299 299 Histogram* JNIHistogram;
300 300 static volatile jint JNIHistogram_lock = 0;
301 301
302 302 class JNITraceWrapper : public StackObj {
303 303 public:
304 304 JNITraceWrapper(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {
305 305 if (TraceJNICalls) {
306 306 va_list ap;
307 307 va_start(ap, format);
308 308 tty->print("JNI ");
309 309 tty->vprint_cr(format, ap);
310 310 va_end(ap);
311 311 }
312 312 }
313 313 };
314 314
315 315 class JNIHistogramElement : public HistogramElement {
316 316 public:
317 317 JNIHistogramElement(const char* name);
318 318 };
319 319
320 320 JNIHistogramElement::JNIHistogramElement(const char* elementName) {
321 321 _name = elementName;
322 322 uintx count = 0;
323 323
324 324 while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) {
325 325 while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) {
326 326 count +=1;
327 327 if ( (WarnOnStalledSpinLock > 0)
328 328 && (count % WarnOnStalledSpinLock == 0)) {
329 329 warning("JNIHistogram_lock seems to be stalled");
330 330 }
331 331 }
332 332 }
333 333
334 334
335 335 if(JNIHistogram == NULL)
336 336 JNIHistogram = new Histogram("JNI Call Counts",100);
337 337
338 338 JNIHistogram->add_element(this);
339 339 Atomic::dec(&JNIHistogram_lock);
340 340 }
341 341
342 342 #define JNICountWrapper(arg) \
343 343 static JNIHistogramElement* e = new JNIHistogramElement(arg); \
344 344 /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \
345 345 if (e != NULL) e->increment_count()
346 346 #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg)
347 347 #else
348 348 #define JNIWrapper(arg)
349 349 #endif
350 350
351 351
352 352 // Implementation of JNI entries
353 353
354 354 #ifndef USDT2
355 355 DT_RETURN_MARK_DECL(DefineClass, jclass);
356 356 #else /* USDT2 */
357 357 DT_RETURN_MARK_DECL(DefineClass, jclass
358 358 , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));
359 359 #endif /* USDT2 */
360 360
361 361 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef,
362 362 const jbyte *buf, jsize bufLen))
363 363 JNIWrapper("DefineClass");
364 364
365 365 #ifndef USDT2
366 366 DTRACE_PROBE5(hotspot_jni, DefineClass__entry,
367 367 env, name, loaderRef, buf, bufLen);
368 368 #else /* USDT2 */
369 369 HOTSPOT_JNI_DEFINECLASS_ENTRY(
370 370 env, (char*) name, loaderRef, (char*) buf, bufLen);
371 371 #endif /* USDT2 */
372 372 jclass cls = NULL;
373 373 DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls);
374 374
375 375 TempNewSymbol class_name = NULL;
376 376 // Since exceptions can be thrown, class initialization can take place
377 377 // if name is NULL no check for class name in .class stream has to be made.
378 378 if (name != NULL) {
379 379 const int str_len = (int)strlen(name);
380 380 if (str_len > Symbol::max_length()) {
381 381 // It's impossible to create this class; the name cannot fit
382 382 // into the constant pool.
383 383 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
384 384 }
385 385 class_name = SymbolTable::new_symbol(name, CHECK_NULL);
386 386 }
387 387 ResourceMark rm(THREAD);
388 388 ClassFileStream st((u1*) buf, bufLen, NULL);
389 389 Handle class_loader (THREAD, JNIHandles::resolve(loaderRef));
390 390
391 391 if (UsePerfData && !class_loader.is_null()) {
392 392 // check whether the current caller thread holds the lock or not.
393 393 // If not, increment the corresponding counter
394 394 if (ObjectSynchronizer::
395 395 query_lock_ownership((JavaThread*)THREAD, class_loader) !=
396 396 ObjectSynchronizer::owner_self) {
397 397 ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc();
398 398 }
399 399 }
400 400 Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader,
401 401 Handle(), &st, true,
402 402 CHECK_NULL);
403 403
404 404 if (TraceClassResolution && k != NULL) {
405 405 trace_class_resolution(k);
406 406 }
407 407
408 408 cls = (jclass)JNIHandles::make_local(
409 409 env, k->java_mirror());
410 410 return cls;
411 411 JNI_END
412 412
413 413
414 414
415 415 static bool first_time_FindClass = true;
416 416
417 417 #ifndef USDT2
418 418 DT_RETURN_MARK_DECL(FindClass, jclass);
419 419 #else /* USDT2 */
420 420 DT_RETURN_MARK_DECL(FindClass, jclass
421 421 , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));
422 422 #endif /* USDT2 */
423 423
424 424 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name))
425 425 JNIWrapper("FindClass");
426 426 #ifndef USDT2
427 427 DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name);
428 428 #else /* USDT2 */
429 429 HOTSPOT_JNI_FINDCLASS_ENTRY(
430 430 env, (char *)name);
431 431 #endif /* USDT2 */
432 432
433 433 jclass result = NULL;
434 434 DT_RETURN_MARK(FindClass, jclass, (const jclass&)result);
435 435
436 436 // Remember if we are the first invocation of jni_FindClass
437 437 bool first_time = first_time_FindClass;
438 438 first_time_FindClass = false;
439 439
440 440 // Sanity check the name: it cannot be null or larger than the maximum size
441 441 // name we can fit in the constant pool.
442 442 if (name == NULL || (int)strlen(name) > Symbol::max_length()) {
443 443 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
444 444 }
445 445
446 446 //%note jni_3
447 447 Handle loader;
448 448 Handle protection_domain;
449 449 // Find calling class
450 450 instanceKlassHandle k (THREAD, thread->security_get_caller_class(0));
451 451 if (k.not_null()) {
452 452 loader = Handle(THREAD, k->class_loader());
453 453 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed
454 454 // in the correct class context.
455 455 if (loader.is_null() &&
456 456 k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) {
457 457 JavaValue result(T_OBJECT);
458 458 JavaCalls::call_static(&result, k,
459 459 vmSymbols::getFromClass_name(),
460 460 vmSymbols::void_class_signature(),
461 461 thread);
462 462 if (HAS_PENDING_EXCEPTION) {
463 463 Handle ex(thread, thread->pending_exception());
464 464 CLEAR_PENDING_EXCEPTION;
465 465 THROW_HANDLE_0(ex);
466 466 }
467 467 oop mirror = (oop) result.get_jobject();
468 468 loader = Handle(THREAD,
469 469 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader());
470 470 protection_domain = Handle(THREAD,
471 471 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain());
472 472 }
473 473 } else {
474 474 // We call ClassLoader.getSystemClassLoader to obtain the system class loader.
475 475 loader = Handle(THREAD, SystemDictionary::java_system_loader());
476 476 }
477 477
478 478 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
479 479 result = find_class_from_class_loader(env, sym, true, loader,
480 480 protection_domain, true, thread);
481 481
482 482 if (TraceClassResolution && result != NULL) {
483 483 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
484 484 }
485 485
486 486 // If we were the first invocation of jni_FindClass, we enable compilation again
487 487 // rather than just allowing invocation counter to overflow and decay.
488 488 // Controlled by flag DelayCompilationDuringStartup.
489 489 if (first_time && !CompileTheWorld)
490 490 CompilationPolicy::completed_vm_startup();
491 491
492 492 return result;
493 493 JNI_END
494 494
495 495 #ifndef USDT2
496 496 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);
497 497 #else /* USDT2 */
498 498 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID
499 499 , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));
500 500 #endif /* USDT2 */
501 501
502 502 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method))
503 503 JNIWrapper("FromReflectedMethod");
504 504 #ifndef USDT2
505 505 DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method);
506 506 #else /* USDT2 */
507 507 HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(
508 508 env, method);
509 509 #endif /* USDT2 */
510 510 jmethodID ret = NULL;
511 511 DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret);
512 512
513 513 // method is a handle to a java.lang.reflect.Method object
514 514 oop reflected = JNIHandles::resolve_non_null(method);
515 515 oop mirror = NULL;
516 516 int slot = 0;
517 517
518 518 if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) {
519 519 mirror = java_lang_reflect_Constructor::clazz(reflected);
520 520 slot = java_lang_reflect_Constructor::slot(reflected);
521 521 } else {
522 522 assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
523 523 mirror = java_lang_reflect_Method::clazz(reflected);
524 524 slot = java_lang_reflect_Method::slot(reflected);
525 525 }
526 526 Klass* k = java_lang_Class::as_Klass(mirror);
527 527
528 528 KlassHandle k1(THREAD, k);
529 529 // Make sure class is initialized before handing id's out to methods
530 530 k1()->initialize(CHECK_NULL);
531 531 Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot);
532 532 ret = m==NULL? NULL : m->jmethod_id(); // return NULL if reflected method deleted
533 533 return ret;
534 534 JNI_END
535 535
536 536 #ifndef USDT2
537 537 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);
538 538 #else /* USDT2 */
539 539 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID
540 540 , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));
541 541 #endif /* USDT2 */
542 542
543 543 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field))
544 544 JNIWrapper("FromReflectedField");
545 545 #ifndef USDT2
546 546 DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field);
547 547 #else /* USDT2 */
548 548 HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(
549 549 env, field);
550 550 #endif /* USDT2 */
551 551 jfieldID ret = NULL;
552 552 DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret);
553 553
554 554 // field is a handle to a java.lang.reflect.Field object
555 555 oop reflected = JNIHandles::resolve_non_null(field);
556 556 oop mirror = java_lang_reflect_Field::clazz(reflected);
557 557 Klass* k = java_lang_Class::as_Klass(mirror);
558 558 int slot = java_lang_reflect_Field::slot(reflected);
559 559 int modifiers = java_lang_reflect_Field::modifiers(reflected);
560 560
561 561 KlassHandle k1(THREAD, k);
562 562 // Make sure class is initialized before handing id's out to fields
563 563 k1()->initialize(CHECK_NULL);
564 564
565 565 // First check if this is a static field
566 566 if (modifiers & JVM_ACC_STATIC) {
567 567 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
568 568 JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset);
569 569 assert(id != NULL, "corrupt Field object");
570 570 debug_only(id->set_is_static_field_id();)
571 571 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
572 572 ret = jfieldIDWorkaround::to_static_jfieldID(id);
573 573 return ret;
574 574 }
575 575
576 576 // The slot is the index of the field description in the field-array
577 577 // The jfieldID is the offset of the field within the object
578 578 // It may also have hash bits for k, if VerifyJNIFields is turned on.
579 579 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
580 580 assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object");
581 581 ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset);
582 582 return ret;
583 583 JNI_END
584 584
585 585 #ifndef USDT2
586 586 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);
587 587 #else /* USDT2 */
588 588 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject
589 589 , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));
590 590 #endif /* USDT2 */
591 591
592 592 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic))
593 593 JNIWrapper("ToReflectedMethod");
594 594 #ifndef USDT2
595 595 DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic);
596 596 #else /* USDT2 */
597 597 HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(
598 598 env, cls, (uintptr_t) method_id, isStatic);
599 599 #endif /* USDT2 */
600 600 jobject ret = NULL;
601 601 DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret);
602 602
603 603 methodHandle m (THREAD, Method::resolve_jmethod_id(method_id));
604 604 assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match");
605 605 oop reflection_method;
606 606 if (m->is_initializer()) {
607 607 reflection_method = Reflection::new_constructor(m, CHECK_NULL);
608 608 } else {
609 609 reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL);
610 610 }
611 611 ret = JNIHandles::make_local(env, reflection_method);
612 612 return ret;
613 613 JNI_END
614 614
615 615 #ifndef USDT2
616 616 DT_RETURN_MARK_DECL(GetSuperclass, jclass);
617 617 #else /* USDT2 */
618 618 DT_RETURN_MARK_DECL(GetSuperclass, jclass
619 619 , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));
620 620 #endif /* USDT2 */
621 621
622 622 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub))
623 623 JNIWrapper("GetSuperclass");
624 624 #ifndef USDT2
625 625 DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub);
626 626 #else /* USDT2 */
627 627 HOTSPOT_JNI_GETSUPERCLASS_ENTRY(
628 628 env, sub);
629 629 #endif /* USDT2 */
630 630 jclass obj = NULL;
631 631 DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj);
632 632
633 633 oop mirror = JNIHandles::resolve_non_null(sub);
634 634 // primitive classes return NULL
635 635 if (java_lang_Class::is_primitive(mirror)) return NULL;
636 636
637 637 // Rules of Class.getSuperClass as implemented by KLass::java_super:
638 638 // arrays return Object
639 639 // interfaces return NULL
640 640 // proper classes return Klass::super()
641 641 Klass* k = java_lang_Class::as_Klass(mirror);
642 642 if (k->is_interface()) return NULL;
643 643
644 644 // return mirror for superclass
645 645 Klass* super = k->java_super();
646 646 // super2 is the value computed by the compiler's getSuperClass intrinsic:
647 647 debug_only(Klass* super2 = ( k->oop_is_array()
648 648 ? SystemDictionary::Object_klass()
649 649 : k->super() ) );
650 650 assert(super == super2,
651 651 "java_super computation depends on interface, array, other super");
652 652 obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror());
653 653 return obj;
654 654 JNI_END
655 655
656 656 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super))
657 657 JNIWrapper("IsSubclassOf");
658 658 #ifndef USDT2
659 659 DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super);
660 660 #else /* USDT2 */
661 661 HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(
662 662 env, sub, super);
663 663 #endif /* USDT2 */
664 664 oop sub_mirror = JNIHandles::resolve_non_null(sub);
665 665 oop super_mirror = JNIHandles::resolve_non_null(super);
666 666 if (java_lang_Class::is_primitive(sub_mirror) ||
667 667 java_lang_Class::is_primitive(super_mirror)) {
668 668 jboolean ret = (sub_mirror == super_mirror);
669 669 #ifndef USDT2
670 670 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
671 671 #else /* USDT2 */
672 672 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
673 673 ret);
674 674 #endif /* USDT2 */
675 675 return ret;
676 676 }
677 677 Klass* sub_klass = java_lang_Class::as_Klass(sub_mirror);
678 678 Klass* super_klass = java_lang_Class::as_Klass(super_mirror);
679 679 assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom");
680 680 jboolean ret = sub_klass->is_subtype_of(super_klass) ?
681 681 JNI_TRUE : JNI_FALSE;
682 682 #ifndef USDT2
683 683 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
684 684 #else /* USDT2 */
685 685 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
686 686 ret);
687 687 #endif /* USDT2 */
688 688 return ret;
689 689 JNI_END
690 690
691 691 #ifndef USDT2
692 692 DT_RETURN_MARK_DECL(Throw, jint);
693 693 #else /* USDT2 */
694 694 DT_RETURN_MARK_DECL(Throw, jint
695 695 , HOTSPOT_JNI_THROW_RETURN(_ret_ref));
696 696 #endif /* USDT2 */
697 697
698 698 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj))
699 699 JNIWrapper("Throw");
700 700 #ifndef USDT2
701 701 DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj);
702 702 #else /* USDT2 */
703 703 HOTSPOT_JNI_THROW_ENTRY(
704 704 env, obj);
705 705 #endif /* USDT2 */
706 706 jint ret = JNI_OK;
707 707 DT_RETURN_MARK(Throw, jint, (const jint&)ret);
708 708
709 709 THROW_OOP_(JNIHandles::resolve(obj), JNI_OK);
710 710 ShouldNotReachHere();
711 711 JNI_END
712 712
713 713 #ifndef USDT2
714 714 DT_RETURN_MARK_DECL(ThrowNew, jint);
715 715 #else /* USDT2 */
716 716 DT_RETURN_MARK_DECL(ThrowNew, jint
717 717 , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));
718 718 #endif /* USDT2 */
719 719
720 720 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message))
721 721 JNIWrapper("ThrowNew");
722 722 #ifndef USDT2
723 723 DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message);
724 724 #else /* USDT2 */
725 725 HOTSPOT_JNI_THROWNEW_ENTRY(
726 726 env, clazz, (char *) message);
727 727 #endif /* USDT2 */
728 728 jint ret = JNI_OK;
729 729 DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret);
730 730
731 731 InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
732 732 Symbol* name = k->name();
733 733 Handle class_loader (THREAD, k->class_loader());
734 734 Handle protection_domain (THREAD, k->protection_domain());
735 735 THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK);
736 736 ShouldNotReachHere();
737 737 JNI_END
738 738
739 739
740 740 // JNI functions only transform a pending async exception to a synchronous
741 741 // exception in ExceptionOccurred and ExceptionCheck calls, since
742 742 // delivering an async exception in other places won't change the native
743 743 // code's control flow and would be harmful when native code further calls
744 744 // JNI functions with a pending exception. Async exception is also checked
745 745 // during the call, so ExceptionOccurred/ExceptionCheck won't return
746 746 // false but deliver the async exception at the very end during
747 747 // state transition.
748 748
749 749 static void jni_check_async_exceptions(JavaThread *thread) {
750 750 assert(thread == Thread::current(), "must be itself");
751 751 thread->check_and_handle_async_exceptions();
752 752 }
753 753
754 754 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env))
755 755 JNIWrapper("ExceptionOccurred");
756 756 #ifndef USDT2
757 757 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);
758 758 #else /* USDT2 */
759 759 HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(
760 760 env);
761 761 #endif /* USDT2 */
762 762 jni_check_async_exceptions(thread);
763 763 oop exception = thread->pending_exception();
764 764 jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception);
765 765 #ifndef USDT2
766 766 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);
767 767 #else /* USDT2 */
768 768 HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(
769 769 ret);
770 770 #endif /* USDT2 */
771 771 return ret;
772 772 JNI_END
773 773
774 774
775 775 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env))
776 776 JNIWrapper("ExceptionDescribe");
777 777 #ifndef USDT2
778 778 DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);
779 779 #else /* USDT2 */
780 780 HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(
781 781 env);
782 782 #endif /* USDT2 */
783 783 if (thread->has_pending_exception()) {
784 784 Handle ex(thread, thread->pending_exception());
785 785 thread->clear_pending_exception();
786 786 if (ex->is_a(SystemDictionary::ThreadDeath_klass())) {
787 787 // Don't print anything if we are being killed.
788 788 } else {
789 789 jio_fprintf(defaultStream::error_stream(), "Exception ");
790 790 if (thread != NULL && thread->threadObj() != NULL) {
791 791 ResourceMark rm(THREAD);
792 792 jio_fprintf(defaultStream::error_stream(),
793 793 "in thread \"%s\" ", thread->get_thread_name());
794 794 }
795 795 if (ex->is_a(SystemDictionary::Throwable_klass())) {
796 796 JavaValue result(T_VOID);
797 797 JavaCalls::call_virtual(&result,
798 798 ex,
799 799 KlassHandle(THREAD,
800 800 SystemDictionary::Throwable_klass()),
801 801 vmSymbols::printStackTrace_name(),
802 802 vmSymbols::void_method_signature(),
803 803 THREAD);
804 804 // If an exception is thrown in the call it gets thrown away. Not much
805 805 // we can do with it. The native code that calls this, does not check
806 806 // for the exception - hence, it might still be in the thread when DestroyVM gets
807 807 // called, potentially causing a few asserts to trigger - since no pending exception
808 808 // is expected.
809 809 CLEAR_PENDING_EXCEPTION;
810 810 } else {
811 811 ResourceMark rm(THREAD);
812 812 jio_fprintf(defaultStream::error_stream(),
813 813 ". Uncaught exception of type %s.",
814 814 ex->klass()->external_name());
815 815 }
816 816 }
817 817 }
818 818 #ifndef USDT2
819 819 DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);
820 820 #else /* USDT2 */
821 821 HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(
822 822 );
823 823 #endif /* USDT2 */
824 824 JNI_END
825 825
826 826
827 827 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env))
828 828 JNIWrapper("ExceptionClear");
829 829 #ifndef USDT2
830 830 DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);
831 831 #else /* USDT2 */
832 832 HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(
833 833 env);
834 834 #endif /* USDT2 */
835 835
836 836 // The jni code might be using this API to clear java thrown exception.
837 837 // So just mark jvmti thread exception state as exception caught.
838 838 JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state();
839 839 if (state != NULL && state->is_exception_detected()) {
840 840 state->set_exception_caught();
841 841 }
842 842 thread->clear_pending_exception();
843 843 #ifndef USDT2
844 844 DTRACE_PROBE(hotspot_jni, ExceptionClear__return);
845 845 #else /* USDT2 */
846 846 HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(
847 847 );
848 848 #endif /* USDT2 */
849 849 JNI_END
850 850
851 851
852 852 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg))
853 853 JNIWrapper("FatalError");
854 854 #ifndef USDT2
855 855 DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg);
856 856 #else /* USDT2 */
857 857 HOTSPOT_JNI_FATALERROR_ENTRY(
858 858 env, (char *) msg);
859 859 #endif /* USDT2 */
860 860 tty->print_cr("FATAL ERROR in native method: %s", msg);
861 861 thread->print_stack();
862 862 os::abort(); // Dump core and abort
863 863 JNI_END
864 864
865 865
866 866 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity))
867 867 JNIWrapper("PushLocalFrame");
868 868 #ifndef USDT2
869 869 DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity);
870 870 #else /* USDT2 */
871 871 HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(
872 872 env, capacity);
873 873 #endif /* USDT2 */
874 874 //%note jni_11
875 875 if (capacity < 0 ||
876 876 ((MaxJNILocalCapacity > 0) && (capacity > MaxJNILocalCapacity))) {
877 877 #ifndef USDT2
878 878 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);
879 879 #else /* USDT2 */
880 880 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
881 881 (uint32_t)JNI_ERR);
882 882 #endif /* USDT2 */
883 883 return JNI_ERR;
884 884 }
885 885 JNIHandleBlock* old_handles = thread->active_handles();
886 886 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
887 887 assert(new_handles != NULL, "should not be NULL");
888 888 new_handles->set_pop_frame_link(old_handles);
889 889 thread->set_active_handles(new_handles);
890 890 jint ret = JNI_OK;
891 891 #ifndef USDT2
892 892 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);
893 893 #else /* USDT2 */
894 894 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
895 895 ret);
896 896 #endif /* USDT2 */
897 897 return ret;
898 898 JNI_END
899 899
900 900
901 901 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result))
902 902 JNIWrapper("PopLocalFrame");
903 903 #ifndef USDT2
904 904 DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result);
905 905 #else /* USDT2 */
906 906 HOTSPOT_JNI_POPLOCALFRAME_ENTRY(
907 907 env, result);
908 908 #endif /* USDT2 */
909 909 //%note jni_11
910 910 Handle result_handle(thread, JNIHandles::resolve(result));
911 911 JNIHandleBlock* old_handles = thread->active_handles();
912 912 JNIHandleBlock* new_handles = old_handles->pop_frame_link();
913 913 if (new_handles != NULL) {
914 914 // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL.
915 915 // This way code will still work if PopLocalFrame is called without a corresponding
916 916 // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise
917 917 // the release_block call will release the blocks.
918 918 thread->set_active_handles(new_handles);
919 919 old_handles->set_pop_frame_link(NULL); // clear link we won't release new_handles below
920 920 JNIHandleBlock::release_block(old_handles, thread); // may block
921 921 result = JNIHandles::make_local(thread, result_handle());
922 922 }
923 923 #ifndef USDT2
924 924 DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);
925 925 #else /* USDT2 */
926 926 HOTSPOT_JNI_POPLOCALFRAME_RETURN(
927 927 result);
928 928 #endif /* USDT2 */
929 929 return result;
930 930 JNI_END
931 931
932 932
933 933 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref))
934 934 JNIWrapper("NewGlobalRef");
935 935 #ifndef USDT2
936 936 DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref);
937 937 #else /* USDT2 */
938 938 HOTSPOT_JNI_NEWGLOBALREF_ENTRY(
939 939 env, ref);
940 940 #endif /* USDT2 */
941 941 Handle ref_handle(thread, JNIHandles::resolve(ref));
942 942 jobject ret = JNIHandles::make_global(ref_handle);
943 943 #ifndef USDT2
944 944 DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);
945 945 #else /* USDT2 */
946 946 HOTSPOT_JNI_NEWGLOBALREF_RETURN(
947 947 ret);
948 948 #endif /* USDT2 */
949 949 return ret;
950 950 JNI_END
951 951
952 952 // Must be JNI_ENTRY (with HandleMark)
953 953 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref))
954 954 JNIWrapper("DeleteGlobalRef");
955 955 #ifndef USDT2
956 956 DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref);
957 957 #else /* USDT2 */
958 958 HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(
959 959 env, ref);
960 960 #endif /* USDT2 */
961 961 JNIHandles::destroy_global(ref);
962 962 #ifndef USDT2
963 963 DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);
964 964 #else /* USDT2 */
965 965 HOTSPOT_JNI_DELETEGLOBALREF_RETURN(
966 966 );
967 967 #endif /* USDT2 */
968 968 JNI_END
969 969
970 970 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj))
971 971 JNIWrapper("DeleteLocalRef");
972 972 #ifndef USDT2
973 973 DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj);
974 974 #else /* USDT2 */
975 975 HOTSPOT_JNI_DELETELOCALREF_ENTRY(
976 976 env, obj);
977 977 #endif /* USDT2 */
978 978 JNIHandles::destroy_local(obj);
979 979 #ifndef USDT2
980 980 DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);
981 981 #else /* USDT2 */
982 982 HOTSPOT_JNI_DELETELOCALREF_RETURN(
983 983 );
984 984 #endif /* USDT2 */
985 985 JNI_END
986 986
987 987 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2))
988 988 JNIWrapper("IsSameObject");
989 989 #ifndef USDT2
990 990 DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2);
991 991 #else /* USDT2 */
992 992 HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(
993 993 env, r1, r2);
994 994 #endif /* USDT2 */
995 995 oop a = JNIHandles::resolve(r1);
996 996 oop b = JNIHandles::resolve(r2);
997 997 jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;
998 998 #ifndef USDT2
999 999 DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);
1000 1000 #else /* USDT2 */
1001 1001 HOTSPOT_JNI_ISSAMEOBJECT_RETURN(
1002 1002 ret);
1003 1003 #endif /* USDT2 */
1004 1004 return ret;
1005 1005 JNI_END
1006 1006
1007 1007
1008 1008 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))
1009 1009 JNIWrapper("NewLocalRef");
1010 1010 #ifndef USDT2
1011 1011 DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);
1012 1012 #else /* USDT2 */
1013 1013 HOTSPOT_JNI_NEWLOCALREF_ENTRY(
1014 1014 env, ref);
1015 1015 #endif /* USDT2 */
1016 1016 jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));
1017 1017 #ifndef USDT2
1018 1018 DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);
1019 1019 #else /* USDT2 */
1020 1020 HOTSPOT_JNI_NEWLOCALREF_RETURN(
1021 1021 ret);
1022 1022 #endif /* USDT2 */
1023 1023 return ret;
1024 1024 JNI_END
1025 1025
1026 1026 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))
1027 1027 JNIWrapper("EnsureLocalCapacity");
1028 1028 #ifndef USDT2
1029 1029 DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);
1030 1030 #else /* USDT2 */
1031 1031 HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(
1032 1032 env, capacity);
1033 1033 #endif /* USDT2 */
1034 1034 jint ret;
1035 1035 if (capacity >= 0 &&
1036 1036 ((MaxJNILocalCapacity <= 0) || (capacity <= MaxJNILocalCapacity))) {
1037 1037 ret = JNI_OK;
1038 1038 } else {
1039 1039 ret = JNI_ERR;
1040 1040 }
1041 1041 #ifndef USDT2
1042 1042 DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);
1043 1043 #else /* USDT2 */
1044 1044 HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(
1045 1045 ret);
1046 1046 #endif /* USDT2 */
1047 1047 return ret;
1048 1048 JNI_END
1049 1049
1050 1050 // Return the Handle Type
1051 1051 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))
1052 1052 JNIWrapper("GetObjectRefType");
1053 1053 #ifndef USDT2
1054 1054 DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);
1055 1055 #else /* USDT2 */
1056 1056 HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(
1057 1057 env, obj);
1058 1058 #endif /* USDT2 */
1059 1059 jobjectRefType ret;
1060 1060 if (JNIHandles::is_local_handle(thread, obj) ||
1061 1061 JNIHandles::is_frame_handle(thread, obj))
1062 1062 ret = JNILocalRefType;
1063 1063 else if (JNIHandles::is_global_handle(obj))
1064 1064 ret = JNIGlobalRefType;
1065 1065 else if (JNIHandles::is_weak_global_handle(obj))
1066 1066 ret = JNIWeakGlobalRefType;
1067 1067 else
1068 1068 ret = JNIInvalidRefType;
1069 1069 #ifndef USDT2
1070 1070 DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);
1071 1071 #else /* USDT2 */
1072 1072 HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(
1073 1073 (void *) ret);
1074 1074 #endif /* USDT2 */
1075 1075 return ret;
1076 1076 JNI_END
1077 1077
1078 1078
1079 1079 class JNI_ArgumentPusher : public SignatureIterator {
1080 1080 protected:
1081 1081 JavaCallArguments* _arguments;
1082 1082
1083 1083 virtual void get_bool () = 0;
1084 1084 virtual void get_char () = 0;
1085 1085 virtual void get_short () = 0;
1086 1086 virtual void get_byte () = 0;
1087 1087 virtual void get_int () = 0;
1088 1088 virtual void get_long () = 0;
1089 1089 virtual void get_float () = 0;
1090 1090 virtual void get_double () = 0;
1091 1091 virtual void get_object () = 0;
1092 1092
1093 1093 JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {
1094 1094 this->_return_type = T_ILLEGAL;
1095 1095 _arguments = NULL;
1096 1096 }
1097 1097
1098 1098 public:
1099 1099 virtual void iterate( uint64_t fingerprint ) = 0;
1100 1100
1101 1101 void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }
1102 1102
1103 1103 inline void do_bool() { if (!is_return_type()) get_bool(); }
1104 1104 inline void do_char() { if (!is_return_type()) get_char(); }
1105 1105 inline void do_short() { if (!is_return_type()) get_short(); }
1106 1106 inline void do_byte() { if (!is_return_type()) get_byte(); }
1107 1107 inline void do_int() { if (!is_return_type()) get_int(); }
1108 1108 inline void do_long() { if (!is_return_type()) get_long(); }
1109 1109 inline void do_float() { if (!is_return_type()) get_float(); }
1110 1110 inline void do_double() { if (!is_return_type()) get_double(); }
1111 1111 inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }
1112 1112 inline void do_array(int begin, int end) { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array
1113 1113 inline void do_void() { }
1114 1114
1115 1115 JavaCallArguments* arguments() { return _arguments; }
1116 1116 void push_receiver(Handle h) { _arguments->push_oop(h); }
1117 1117 };
1118 1118
1119 1119
1120 1120 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {
1121 1121 protected:
1122 1122 va_list _ap;
1123 1123
1124 1124 inline void get_bool() { _arguments->push_int(va_arg(_ap, jint)); } // bool is coerced to int when using va_arg
1125 1125 inline void get_char() { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg
1126 1126 inline void get_short() { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg
1127 1127 inline void get_byte() { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg
1128 1128 inline void get_int() { _arguments->push_int(va_arg(_ap, jint)); }
1129 1129
1130 1130 // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests
1131 1131
1132 1132 inline void get_long() { _arguments->push_long(va_arg(_ap, jlong)); }
1133 1133 inline void get_float() { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg
1134 1134 inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }
1135 1135 inline void get_object() { jobject l = va_arg(_ap, jobject);
1136 1136 _arguments->push_oop(Handle((oop *)l, false)); }
1137 1137
1138 1138 inline void set_ap(va_list rap) {
1139 1139 #ifdef va_copy
1140 1140 va_copy(_ap, rap);
1141 1141 #elif defined (__va_copy)
1142 1142 __va_copy(_ap, rap);
1143 1143 #else
1144 1144 _ap = rap;
1145 1145 #endif
1146 1146 }
1147 1147
1148 1148 public:
1149 1149 JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)
1150 1150 : JNI_ArgumentPusher(signature) {
1151 1151 set_ap(rap);
1152 1152 }
1153 1153 JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)
1154 1154 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1155 1155 set_ap(rap);
1156 1156 }
1157 1157
1158 1158 // Optimized path if we have the bitvector form of signature
1159 1159 void iterate( uint64_t fingerprint ) {
1160 1160 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments
1161 1161 else {
1162 1162 _return_type = (BasicType)((fingerprint >> static_feature_size) &
1163 1163 result_feature_mask);
1164 1164
1165 1165 assert(fingerprint, "Fingerprint should not be 0");
1166 1166 fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1167 1167 while ( 1 ) {
1168 1168 switch ( fingerprint & parameter_feature_mask ) {
1169 1169 case bool_parm:
1170 1170 case char_parm:
1171 1171 case short_parm:
1172 1172 case byte_parm:
1173 1173 case int_parm:
1174 1174 get_int();
1175 1175 break;
1176 1176 case obj_parm:
1177 1177 get_object();
1178 1178 break;
1179 1179 case long_parm:
1180 1180 get_long();
1181 1181 break;
1182 1182 case float_parm:
1183 1183 get_float();
1184 1184 break;
1185 1185 case double_parm:
1186 1186 get_double();
1187 1187 break;
1188 1188 case done_parm:
1189 1189 return;
1190 1190 break;
1191 1191 default:
1192 1192 ShouldNotReachHere();
1193 1193 break;
1194 1194 }
1195 1195 fingerprint >>= parameter_feature_size;
1196 1196 }
1197 1197 }
1198 1198 }
1199 1199 };
1200 1200
1201 1201
1202 1202 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {
1203 1203 protected:
1204 1204 const jvalue *_ap;
1205 1205
1206 1206 inline void get_bool() { _arguments->push_int((jint)(_ap++)->z); }
1207 1207 inline void get_char() { _arguments->push_int((jint)(_ap++)->c); }
1208 1208 inline void get_short() { _arguments->push_int((jint)(_ap++)->s); }
1209 1209 inline void get_byte() { _arguments->push_int((jint)(_ap++)->b); }
1210 1210 inline void get_int() { _arguments->push_int((jint)(_ap++)->i); }
1211 1211
1212 1212 inline void get_long() { _arguments->push_long((_ap++)->j); }
1213 1213 inline void get_float() { _arguments->push_float((_ap++)->f); }
1214 1214 inline void get_double() { _arguments->push_double((_ap++)->d);}
1215 1215 inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }
1216 1216
1217 1217 inline void set_ap(const jvalue *rap) { _ap = rap; }
1218 1218
1219 1219 public:
1220 1220 JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)
1221 1221 : JNI_ArgumentPusher(signature) {
1222 1222 set_ap(rap);
1223 1223 }
1224 1224 JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)
1225 1225 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1226 1226 set_ap(rap);
1227 1227 }
1228 1228
1229 1229 // Optimized path if we have the bitvector form of signature
1230 1230 void iterate( uint64_t fingerprint ) {
1231 1231 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments
1232 1232 else {
1233 1233 _return_type = (BasicType)((fingerprint >> static_feature_size) &
1234 1234 result_feature_mask);
1235 1235 assert(fingerprint, "Fingerprint should not be 0");
1236 1236 fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1237 1237 while ( 1 ) {
1238 1238 switch ( fingerprint & parameter_feature_mask ) {
1239 1239 case bool_parm:
1240 1240 get_bool();
1241 1241 break;
1242 1242 case char_parm:
1243 1243 get_char();
1244 1244 break;
1245 1245 case short_parm:
1246 1246 get_short();
1247 1247 break;
1248 1248 case byte_parm:
1249 1249 get_byte();
1250 1250 break;
1251 1251 case int_parm:
1252 1252 get_int();
1253 1253 break;
1254 1254 case obj_parm:
1255 1255 get_object();
1256 1256 break;
1257 1257 case long_parm:
1258 1258 get_long();
1259 1259 break;
1260 1260 case float_parm:
1261 1261 get_float();
1262 1262 break;
1263 1263 case double_parm:
1264 1264 get_double();
1265 1265 break;
1266 1266 case done_parm:
1267 1267 return;
1268 1268 break;
1269 1269 default:
1270 1270 ShouldNotReachHere();
1271 1271 break;
1272 1272 }
1273 1273 fingerprint >>= parameter_feature_size;
1274 1274 }
1275 1275 }
1276 1276 }
1277 1277 };
1278 1278
1279 1279
1280 1280 enum JNICallType {
1281 1281 JNI_STATIC,
1282 1282 JNI_VIRTUAL,
1283 1283 JNI_NONVIRTUAL
1284 1284 };
1285 1285
1286 1286
1287 1287
1288 1288 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1289 1289 methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));
1290 1290
1291 1291 // Create object to hold arguments for the JavaCall, and associate it with
1292 1292 // the jni parser
1293 1293 ResourceMark rm(THREAD);
1294 1294 int number_of_parameters = method->size_of_parameters();
1295 1295 JavaCallArguments java_args(number_of_parameters);
1296 1296 args->set_java_argument_object(&java_args);
1297 1297
1298 1298 assert(method->is_static(), "method should be static");
1299 1299
1300 1300 // Fill out JavaCallArguments object
1301 1301 args->iterate( Fingerprinter(method).fingerprint() );
1302 1302 // Initialize result type
1303 1303 result->set_type(args->get_ret_type());
1304 1304
1305 1305 // Invoke the method. Result is returned as oop.
1306 1306 JavaCalls::call(result, method, &java_args, CHECK);
1307 1307
1308 1308 // Convert result
1309 1309 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1310 1310 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1311 1311 }
1312 1312 }
1313 1313
1314 1314
1315 1315 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1316 1316 oop recv = JNIHandles::resolve(receiver);
1317 1317 if (recv == NULL) {
1318 1318 THROW(vmSymbols::java_lang_NullPointerException());
1319 1319 }
1320 1320 Handle h_recv(THREAD, recv);
1321 1321
1322 1322 int number_of_parameters;
1323 1323 Method* selected_method;
1324 1324 {
1325 1325 Method* m = Method::resolve_jmethod_id(method_id);
1326 1326 number_of_parameters = m->size_of_parameters();
1327 1327 Klass* holder = m->method_holder();
1328 1328 if (!(holder)->is_interface()) {
1329 1329 // non-interface call -- for that little speed boost, don't handlize
1330 1330 debug_only(No_Safepoint_Verifier nosafepoint;)
1331 1331 if (call_type == JNI_VIRTUAL) {
1332 1332 // jni_GetMethodID makes sure class is linked and initialized
1333 1333 // so m should have a valid vtable index.
1334 1334 assert(!m->has_itable_index(), "");
1335 1335 int vtbl_index = m->vtable_index();
1336 1336 if (vtbl_index != Method::nonvirtual_vtable_index) {
1337 1337 Klass* k = h_recv->klass();
1338 1338 // k might be an arrayKlassOop but all vtables start at
1339 1339 // the same place. The cast is to avoid virtual call and assertion.
1340 1340 InstanceKlass *ik = (InstanceKlass*)k;
1341 1341 selected_method = ik->method_at_vtable(vtbl_index);
1342 1342 } else {
1343 1343 // final method
1344 1344 selected_method = m;
1345 1345 }
1346 1346 } else {
1347 1347 // JNI_NONVIRTUAL call
1348 1348 selected_method = m;
1349 1349 }
1350 1350 } else {
1351 1351 // interface call
1352 1352 KlassHandle h_holder(THREAD, holder);
1353 1353
1354 1354 if (call_type == JNI_VIRTUAL) {
1355 1355 int itbl_index = m->itable_index();
1356 1356 Klass* k = h_recv->klass();
1357 1357 selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);
1358 1358 } else {
1359 1359 selected_method = m;
1360 1360 }
1361 1361 }
1362 1362 }
1363 1363
1364 1364 methodHandle method(THREAD, selected_method);
1365 1365
1366 1366 // Create object to hold arguments for the JavaCall, and associate it with
1367 1367 // the jni parser
1368 1368 ResourceMark rm(THREAD);
1369 1369 JavaCallArguments java_args(number_of_parameters);
1370 1370 args->set_java_argument_object(&java_args);
1371 1371
1372 1372 // handle arguments
1373 1373 assert(!method->is_static(), "method should not be static");
1374 1374 args->push_receiver(h_recv); // Push jobject handle
1375 1375
1376 1376 // Fill out JavaCallArguments object
1377 1377 args->iterate( Fingerprinter(method).fingerprint() );
1378 1378 // Initialize result type
1379 1379 result->set_type(args->get_ret_type());
1380 1380
1381 1381 // Invoke the method. Result is returned as oop.
1382 1382 JavaCalls::call(result, method, &java_args, CHECK);
1383 1383
1384 1384 // Convert result
1385 1385 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1386 1386 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1387 1387 }
1388 1388 }
1389 1389
1390 1390
1391 1391 static instanceOop alloc_object(jclass clazz, TRAPS) {
1392 1392 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1393 1393 k()->check_valid_for_instantiation(false, CHECK_NULL);
1394 1394 InstanceKlass::cast(k())->initialize(CHECK_NULL);
1395 1395 instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);
1396 1396 return ih;
1397 1397 }
1398 1398
1399 1399 #ifndef USDT2
1400 1400 DT_RETURN_MARK_DECL(AllocObject, jobject);
1401 1401 #else /* USDT2 */
1402 1402 DT_RETURN_MARK_DECL(AllocObject, jobject
1403 1403 , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));
1404 1404 #endif /* USDT2 */
1405 1405
1406 1406 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))
1407 1407 JNIWrapper("AllocObject");
1408 1408
1409 1409 #ifndef USDT2
1410 1410 DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);
1411 1411 #else /* USDT2 */
1412 1412 HOTSPOT_JNI_ALLOCOBJECT_ENTRY(
1413 1413 env, clazz);
1414 1414 #endif /* USDT2 */
1415 1415 jobject ret = NULL;
1416 1416 DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);
1417 1417
1418 1418 instanceOop i = alloc_object(clazz, CHECK_NULL);
1419 1419 ret = JNIHandles::make_local(env, i);
1420 1420 return ret;
1421 1421 JNI_END
1422 1422
1423 1423 #ifndef USDT2
1424 1424 DT_RETURN_MARK_DECL(NewObjectA, jobject);
1425 1425 #else /* USDT2 */
1426 1426 DT_RETURN_MARK_DECL(NewObjectA, jobject
1427 1427 , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));
1428 1428 #endif /* USDT2 */
1429 1429
1430 1430 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))
1431 1431 JNIWrapper("NewObjectA");
1432 1432 #ifndef USDT2
1433 1433 DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);
1434 1434 #else /* USDT2 */
1435 1435 HOTSPOT_JNI_NEWOBJECTA_ENTRY(
1436 1436 env, clazz, (uintptr_t) methodID);
1437 1437 #endif /* USDT2 */
1438 1438 jobject obj = NULL;
1439 1439 DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);
1440 1440
1441 1441 instanceOop i = alloc_object(clazz, CHECK_NULL);
1442 1442 obj = JNIHandles::make_local(env, i);
1443 1443 JavaValue jvalue(T_VOID);
1444 1444 JNI_ArgumentPusherArray ap(methodID, args);
1445 1445 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1446 1446 return obj;
1447 1447 JNI_END
1448 1448
1449 1449 #ifndef USDT2
1450 1450 DT_RETURN_MARK_DECL(NewObjectV, jobject);
1451 1451 #else /* USDT2 */
1452 1452 DT_RETURN_MARK_DECL(NewObjectV, jobject
1453 1453 , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));
1454 1454 #endif /* USDT2 */
1455 1455
1456 1456 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))
1457 1457 JNIWrapper("NewObjectV");
1458 1458 #ifndef USDT2
1459 1459 DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);
1460 1460 #else /* USDT2 */
1461 1461 HOTSPOT_JNI_NEWOBJECTV_ENTRY(
1462 1462 env, clazz, (uintptr_t) methodID);
1463 1463 #endif /* USDT2 */
1464 1464 jobject obj = NULL;
1465 1465 DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);
1466 1466
1467 1467 instanceOop i = alloc_object(clazz, CHECK_NULL);
1468 1468 obj = JNIHandles::make_local(env, i);
1469 1469 JavaValue jvalue(T_VOID);
1470 1470 JNI_ArgumentPusherVaArg ap(methodID, args);
1471 1471 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1472 1472 return obj;
1473 1473 JNI_END
1474 1474
1475 1475 #ifndef USDT2
1476 1476 DT_RETURN_MARK_DECL(NewObject, jobject);
1477 1477 #else /* USDT2 */
1478 1478 DT_RETURN_MARK_DECL(NewObject, jobject
1479 1479 , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));
1480 1480 #endif /* USDT2 */
1481 1481
1482 1482 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))
1483 1483 JNIWrapper("NewObject");
1484 1484 #ifndef USDT2
1485 1485 DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);
1486 1486 #else /* USDT2 */
1487 1487 HOTSPOT_JNI_NEWOBJECT_ENTRY(
1488 1488 env, clazz, (uintptr_t) methodID);
1489 1489 #endif /* USDT2 */
1490 1490 jobject obj = NULL;
1491 1491 DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);
1492 1492
1493 1493 instanceOop i = alloc_object(clazz, CHECK_NULL);
1494 1494 obj = JNIHandles::make_local(env, i);
1495 1495 va_list args;
1496 1496 va_start(args, methodID);
1497 1497 JavaValue jvalue(T_VOID);
1498 1498 JNI_ArgumentPusherVaArg ap(methodID, args);
1499 1499 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1500 1500 va_end(args);
1501 1501 return obj;
1502 1502 JNI_END
1503 1503
1504 1504
1505 1505 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))
1506 1506 JNIWrapper("GetObjectClass");
1507 1507 #ifndef USDT2
1508 1508 DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);
1509 1509 #else /* USDT2 */
1510 1510 HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(
1511 1511 env, obj);
1512 1512 #endif /* USDT2 */
1513 1513 Klass* k = JNIHandles::resolve_non_null(obj)->klass();
1514 1514 jclass ret =
1515 1515 (jclass) JNIHandles::make_local(env, k->java_mirror());
1516 1516 #ifndef USDT2
1517 1517 DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);
1518 1518 #else /* USDT2 */
1519 1519 HOTSPOT_JNI_GETOBJECTCLASS_RETURN(
1520 1520 ret);
1521 1521 #endif /* USDT2 */
1522 1522 return ret;
1523 1523 JNI_END
1524 1524
1525 1525 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))
1526 1526 JNIWrapper("IsInstanceOf");
1527 1527 #ifndef USDT2
1528 1528 DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);
1529 1529 #else /* USDT2 */
1530 1530 HOTSPOT_JNI_ISINSTANCEOF_ENTRY(
1531 1531 env, obj, clazz);
1532 1532 #endif /* USDT2 */
1533 1533 jboolean ret = JNI_TRUE;
1534 1534 if (obj != NULL) {
1535 1535 ret = JNI_FALSE;
1536 1536 Klass* k = java_lang_Class::as_Klass(
1537 1537 JNIHandles::resolve_non_null(clazz));
1538 1538 if (k != NULL) {
1539 1539 ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;
1540 1540 }
1541 1541 }
1542 1542 #ifndef USDT2
1543 1543 DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);
1544 1544 #else /* USDT2 */
1545 1545 HOTSPOT_JNI_ISINSTANCEOF_RETURN(
1546 1546 ret);
1547 1547 #endif /* USDT2 */
1548 1548 return ret;
1549 1549 JNI_END
1550 1550
1551 1551
1552 1552 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,
1553 1553 const char *sig, bool is_static, TRAPS) {
1554 1554 // %%%% This code should probably just call into a method in the LinkResolver
1555 1555 //
1556 1556 // The class should have been loaded (we have an instance of the class
1557 1557 // passed in) so the method and signature should already be in the symbol
1558 1558 // table. If they're not there, the method doesn't exist.
1559 1559 const char *name_to_probe = (name_str == NULL)
1560 1560 ? vmSymbols::object_initializer_name()->as_C_string()
1561 1561 : name_str;
1562 1562 TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));
1563 1563 TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));
1564 1564
1565 1565 if (name == NULL || signature == NULL) {
1566 1566 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1567 1567 }
1568 1568
1569 1569 // Throw a NoSuchMethodError exception if we have an instance of a
1570 1570 // primitive java.lang.Class
1571 1571 if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {
1572 1572 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1573 1573 }
1574 1574
1575 1575 KlassHandle klass(THREAD,
1576 1576 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1577 1577
1578 1578 // Make sure class is linked and initialized before handing id's out to
1579 1579 // Method*s.
1580 1580 klass()->initialize(CHECK_NULL);
1581 1581
1582 1582 Method* m;
1583 1583 if (name == vmSymbols::object_initializer_name() ||
1584 1584 name == vmSymbols::class_initializer_name()) {
1585 1585 // Never search superclasses for constructors
1586 1586 if (klass->oop_is_instance()) {
1587 1587 m = InstanceKlass::cast(klass())->find_method(name, signature);
1588 1588 } else {
1589 1589 m = NULL;
1590 1590 }
1591 1591 } else {
1592 1592 m = klass->lookup_method(name, signature);
1593 1593 if (m == NULL && klass->oop_is_instance()) {
1594 1594 m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);
1595 1595 }
1596 1596 }
1597 1597 if (m == NULL || (m->is_static() != is_static)) {
1598 1598 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1599 1599 }
1600 1600 return m->jmethod_id();
1601 1601 }
1602 1602
1603 1603
1604 1604 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,
1605 1605 const char *name, const char *sig))
1606 1606 JNIWrapper("GetMethodID");
1607 1607 #ifndef USDT2
1608 1608 DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);
1609 1609 #else /* USDT2 */
1610 1610 HOTSPOT_JNI_GETMETHODID_ENTRY(
1611 1611 env, clazz, (char *) name, (char *) sig);
1612 1612 #endif /* USDT2 */
1613 1613 jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);
1614 1614 #ifndef USDT2
1615 1615 DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);
1616 1616 #else /* USDT2 */
1617 1617 HOTSPOT_JNI_GETMETHODID_RETURN(
1618 1618 (uintptr_t) ret);
1619 1619 #endif /* USDT2 */
1620 1620 return ret;
1621 1621 JNI_END
1622 1622
1623 1623
1624 1624 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,
1625 1625 const char *name, const char *sig))
1626 1626 JNIWrapper("GetStaticMethodID");
1627 1627 #ifndef USDT2
1628 1628 DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);
1629 1629 #else /* USDT2 */
1630 1630 HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(
1631 1631 env, (char *) clazz, (char *) name, (char *)sig);
1632 1632 #endif /* USDT2 */
1633 1633 jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);
1634 1634 #ifndef USDT2
1635 1635 DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);
1636 1636 #else /* USDT2 */
1637 1637 HOTSPOT_JNI_GETSTATICMETHODID_RETURN(
1638 1638 (uintptr_t) ret);
1639 1639 #endif /* USDT2 */
1640 1640 return ret;
1641 1641 JNI_END
1642 1642
1643 1643
1644 1644
1645 1645 //
1646 1646 // Calling Methods
1647 1647 //
1648 1648
1649 1649 #ifndef USDT2
1650 1650 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \
1651 1651 \
1652 1652 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\
1653 1653 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\
1654 1654 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\
1655 1655 \
1656 1656 JNI_ENTRY(ResultType, \
1657 1657 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1658 1658 JNIWrapper("Call" XSTR(Result) "Method"); \
1659 1659 \
1660 1660 DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \
1661 1661 ResultType ret = 0;\
1662 1662 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1663 1663 (const ResultType&)ret);\
1664 1664 \
1665 1665 va_list args; \
1666 1666 va_start(args, methodID); \
1667 1667 JavaValue jvalue(Tag); \
1668 1668 JNI_ArgumentPusherVaArg ap(methodID, args); \
1669 1669 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1670 1670 va_end(args); \
1671 1671 ret = jvalue.get_##ResultType(); \
1672 1672 return ret;\
1673 1673 JNI_END \
1674 1674 \
1675 1675 \
1676 1676 JNI_ENTRY(ResultType, \
1677 1677 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1678 1678 JNIWrapper("Call" XSTR(Result) "MethodV"); \
1679 1679 \
1680 1680 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \
1681 1681 ResultType ret = 0;\
1682 1682 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1683 1683 (const ResultType&)ret);\
1684 1684 \
1685 1685 JavaValue jvalue(Tag); \
1686 1686 JNI_ArgumentPusherVaArg ap(methodID, args); \
1687 1687 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1688 1688 ret = jvalue.get_##ResultType(); \
1689 1689 return ret;\
1690 1690 JNI_END \
1691 1691 \
1692 1692 \
1693 1693 JNI_ENTRY(ResultType, \
1694 1694 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1695 1695 JNIWrapper("Call" XSTR(Result) "MethodA"); \
1696 1696 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \
1697 1697 ResultType ret = 0;\
1698 1698 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1699 1699 (const ResultType&)ret);\
1700 1700 \
1701 1701 JavaValue jvalue(Tag); \
1702 1702 JNI_ArgumentPusherArray ap(methodID, args); \
1703 1703 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1704 1704 ret = jvalue.get_##ResultType(); \
1705 1705 return ret;\
1706 1706 JNI_END
1707 1707
1708 1708 // the runtime type of subword integral basic types is integer
1709 1709 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)
1710 1710 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE)
1711 1711 DEFINE_CALLMETHOD(jchar, Char, T_CHAR)
1712 1712 DEFINE_CALLMETHOD(jshort, Short, T_SHORT)
1713 1713
1714 1714 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT)
1715 1715 DEFINE_CALLMETHOD(jint, Int, T_INT)
1716 1716 DEFINE_CALLMETHOD(jlong, Long, T_LONG)
1717 1717 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT)
1718 1718 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE)
1719 1719
1720 1720 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);
1721 1721 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);
1722 1722 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);
1723 1723
1724 1724 #else /* USDT2 */
1725 1725
1726 1726 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \
1727 1727 , EntryProbe, ReturnProbe) \
1728 1728 \
1729 1729 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \
1730 1730 , ReturnProbe); \
1731 1731 \
1732 1732 JNI_ENTRY(ResultType, \
1733 1733 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1734 1734 JNIWrapper("Call" XSTR(Result) "Method"); \
1735 1735 \
1736 1736 EntryProbe; \
1737 1737 ResultType ret = 0;\
1738 1738 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1739 1739 (const ResultType&)ret);\
1740 1740 \
1741 1741 va_list args; \
1742 1742 va_start(args, methodID); \
1743 1743 JavaValue jvalue(Tag); \
1744 1744 JNI_ArgumentPusherVaArg ap(methodID, args); \
1745 1745 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1746 1746 va_end(args); \
1747 1747 ret = jvalue.get_##ResultType(); \
1748 1748 return ret;\
1749 1749 JNI_END
1750 1750
1751 1751 // the runtime type of subword integral basic types is integer
1752 1752 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN
1753 1753 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1754 1754 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))
1755 1755 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE
1756 1756 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1757 1757 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))
1758 1758 DEFINE_CALLMETHOD(jchar, Char, T_CHAR
1759 1759 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1760 1760 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))
1761 1761 DEFINE_CALLMETHOD(jshort, Short, T_SHORT
1762 1762 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1763 1763 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))
1764 1764
1765 1765 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT
1766 1766 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1767 1767 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))
1768 1768 DEFINE_CALLMETHOD(jint, Int, T_INT,
1769 1769 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1770 1770 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))
1771 1771 DEFINE_CALLMETHOD(jlong, Long, T_LONG
1772 1772 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1773 1773 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))
1774 1774 // Float and double probes don't return value because dtrace doesn't currently support it
1775 1775 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT
1776 1776 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1777 1777 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())
1778 1778 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE
1779 1779 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1780 1780 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())
1781 1781
1782 1782 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \
1783 1783 , EntryProbe, ReturnProbe) \
1784 1784 \
1785 1785 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \
1786 1786 , ReturnProbe); \
1787 1787 \
1788 1788 JNI_ENTRY(ResultType, \
1789 1789 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1790 1790 JNIWrapper("Call" XSTR(Result) "MethodV"); \
1791 1791 \
1792 1792 EntryProbe;\
1793 1793 ResultType ret = 0;\
1794 1794 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1795 1795 (const ResultType&)ret);\
1796 1796 \
1797 1797 JavaValue jvalue(Tag); \
1798 1798 JNI_ArgumentPusherVaArg ap(methodID, args); \
1799 1799 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1800 1800 ret = jvalue.get_##ResultType(); \
1801 1801 return ret;\
1802 1802 JNI_END
1803 1803
1804 1804 // the runtime type of subword integral basic types is integer
1805 1805 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN
1806 1806 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1807 1807 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))
1808 1808 DEFINE_CALLMETHODV(jbyte, Byte, T_BYTE
1809 1809 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1810 1810 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))
1811 1811 DEFINE_CALLMETHODV(jchar, Char, T_CHAR
1812 1812 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1813 1813 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))
1814 1814 DEFINE_CALLMETHODV(jshort, Short, T_SHORT
1815 1815 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1816 1816 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))
1817 1817
1818 1818 DEFINE_CALLMETHODV(jobject, Object, T_OBJECT
1819 1819 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1820 1820 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))
1821 1821 DEFINE_CALLMETHODV(jint, Int, T_INT,
1822 1822 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1823 1823 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))
1824 1824 DEFINE_CALLMETHODV(jlong, Long, T_LONG
1825 1825 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1826 1826 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))
1827 1827 // Float and double probes don't return value because dtrace doesn't currently support it
1828 1828 DEFINE_CALLMETHODV(jfloat, Float, T_FLOAT
1829 1829 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1830 1830 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())
1831 1831 DEFINE_CALLMETHODV(jdouble, Double, T_DOUBLE
1832 1832 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1833 1833 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())
1834 1834
1835 1835 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \
1836 1836 , EntryProbe, ReturnProbe) \
1837 1837 \
1838 1838 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \
1839 1839 , ReturnProbe); \
1840 1840 \
1841 1841 JNI_ENTRY(ResultType, \
1842 1842 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1843 1843 JNIWrapper("Call" XSTR(Result) "MethodA"); \
1844 1844 EntryProbe; \
1845 1845 ResultType ret = 0;\
1846 1846 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1847 1847 (const ResultType&)ret);\
1848 1848 \
1849 1849 JavaValue jvalue(Tag); \
1850 1850 JNI_ArgumentPusherArray ap(methodID, args); \
1851 1851 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1852 1852 ret = jvalue.get_##ResultType(); \
1853 1853 return ret;\
1854 1854 JNI_END
1855 1855
1856 1856 // the runtime type of subword integral basic types is integer
1857 1857 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN
1858 1858 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1859 1859 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))
1860 1860 DEFINE_CALLMETHODA(jbyte, Byte, T_BYTE
1861 1861 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1862 1862 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))
1863 1863 DEFINE_CALLMETHODA(jchar, Char, T_CHAR
1864 1864 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1865 1865 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))
1866 1866 DEFINE_CALLMETHODA(jshort, Short, T_SHORT
1867 1867 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1868 1868 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))
1869 1869
1870 1870 DEFINE_CALLMETHODA(jobject, Object, T_OBJECT
1871 1871 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1872 1872 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))
1873 1873 DEFINE_CALLMETHODA(jint, Int, T_INT,
1874 1874 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1875 1875 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))
1876 1876 DEFINE_CALLMETHODA(jlong, Long, T_LONG
1877 1877 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1878 1878 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))
1879 1879 // Float and double probes don't return value because dtrace doesn't currently support it
1880 1880 DEFINE_CALLMETHODA(jfloat, Float, T_FLOAT
1881 1881 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1882 1882 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())
1883 1883 DEFINE_CALLMETHODA(jdouble, Double, T_DOUBLE
1884 1884 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1885 1885 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())
1886 1886
1887 1887 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());
1888 1888 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());
1889 1889 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());
1890 1890
1891 1891 #endif /* USDT2 */
1892 1892
1893 1893 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))
1894 1894 JNIWrapper("CallVoidMethod");
1895 1895 #ifndef USDT2
1896 1896 DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);
1897 1897 #else /* USDT2 */
1898 1898 HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(
1899 1899 env, obj, (uintptr_t) methodID);
1900 1900 #endif /* USDT2 */
1901 1901 DT_VOID_RETURN_MARK(CallVoidMethod);
1902 1902
1903 1903 va_list args;
1904 1904 va_start(args, methodID);
1905 1905 JavaValue jvalue(T_VOID);
1906 1906 JNI_ArgumentPusherVaArg ap(methodID, args);
1907 1907 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1908 1908 va_end(args);
1909 1909 JNI_END
1910 1910
1911 1911
1912 1912 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))
1913 1913 JNIWrapper("CallVoidMethodV");
1914 1914 #ifndef USDT2
1915 1915 DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);
1916 1916 #else /* USDT2 */
1917 1917 HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(
1918 1918 env, obj, (uintptr_t) methodID);
1919 1919 #endif /* USDT2 */
1920 1920 DT_VOID_RETURN_MARK(CallVoidMethodV);
1921 1921
1922 1922 JavaValue jvalue(T_VOID);
1923 1923 JNI_ArgumentPusherVaArg ap(methodID, args);
1924 1924 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1925 1925 JNI_END
1926 1926
1927 1927
1928 1928 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))
1929 1929 JNIWrapper("CallVoidMethodA");
1930 1930 #ifndef USDT2
1931 1931 DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);
1932 1932 #else /* USDT2 */
1933 1933 HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(
1934 1934 env, obj, (uintptr_t) methodID);
1935 1935 #endif /* USDT2 */
1936 1936 DT_VOID_RETURN_MARK(CallVoidMethodA);
1937 1937
1938 1938 JavaValue jvalue(T_VOID);
1939 1939 JNI_ArgumentPusherArray ap(methodID, args);
1940 1940 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1941 1941 JNI_END
1942 1942
1943 1943
1944 1944 #ifndef USDT2
1945 1945 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \
1946 1946 \
1947 1947 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\
1948 1948 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\
1949 1949 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\
1950 1950 \
1951 1951 JNI_ENTRY(ResultType, \
1952 1952 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
1953 1953 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
1954 1954 \
1955 1955 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\
1956 1956 ResultType ret;\
1957 1957 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
1958 1958 (const ResultType&)ret);\
1959 1959 \
1960 1960 va_list args; \
1961 1961 va_start(args, methodID); \
1962 1962 JavaValue jvalue(Tag); \
1963 1963 JNI_ArgumentPusherVaArg ap(methodID, args); \
1964 1964 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1965 1965 va_end(args); \
1966 1966 ret = jvalue.get_##ResultType(); \
1967 1967 return ret;\
1968 1968 JNI_END \
1969 1969 \
1970 1970 JNI_ENTRY(ResultType, \
1971 1971 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
1972 1972 JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \
1973 1973 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\
1974 1974 ResultType ret;\
1975 1975 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
1976 1976 (const ResultType&)ret);\
1977 1977 \
1978 1978 JavaValue jvalue(Tag); \
1979 1979 JNI_ArgumentPusherVaArg ap(methodID, args); \
1980 1980 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1981 1981 ret = jvalue.get_##ResultType(); \
1982 1982 return ret;\
1983 1983 JNI_END \
1984 1984 \
1985 1985 JNI_ENTRY(ResultType, \
1986 1986 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
1987 1987 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
1988 1988 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\
1989 1989 ResultType ret;\
1990 1990 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
1991 1991 (const ResultType&)ret);\
1992 1992 \
1993 1993 JavaValue jvalue(Tag); \
1994 1994 JNI_ArgumentPusherArray ap(methodID, args); \
1995 1995 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1996 1996 ret = jvalue.get_##ResultType(); \
1997 1997 return ret;\
1998 1998 JNI_END
1999 1999
2000 2000 // the runtime type of subword integral basic types is integer
2001 2001 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)
2002 2002 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE)
2003 2003 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR)
2004 2004 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT)
2005 2005
2006 2006 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT)
2007 2007 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT)
2008 2008 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG)
2009 2009 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT)
2010 2010 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE)
2011 2011
2012 2012
2013 2013 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);
2014 2014 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);
2015 2015 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);
2016 2016
2017 2017 #else /* USDT2 */
2018 2018
2019 2019 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \
2020 2020 , EntryProbe, ReturnProbe) \
2021 2021 \
2022 2022 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \
2023 2023 , ReturnProbe);\
2024 2024 \
2025 2025 JNI_ENTRY(ResultType, \
2026 2026 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
2027 2027 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
2028 2028 \
2029 2029 EntryProbe;\
2030 2030 ResultType ret;\
2031 2031 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
2032 2032 (const ResultType&)ret);\
2033 2033 \
2034 2034 va_list args; \
2035 2035 va_start(args, methodID); \
2036 2036 JavaValue jvalue(Tag); \
2037 2037 JNI_ArgumentPusherVaArg ap(methodID, args); \
2038 2038 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2039 2039 va_end(args); \
2040 2040 ret = jvalue.get_##ResultType(); \
2041 2041 return ret;\
2042 2042 JNI_END
2043 2043
2044 2044 // the runtime type of subword integral basic types is integer
2045 2045 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN
2046 2046 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2047 2047 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))
2048 2048 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE
2049 2049 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2050 2050 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))
2051 2051 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR
2052 2052 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2053 2053 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))
2054 2054 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT
2055 2055 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2056 2056 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))
2057 2057
2058 2058 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT
2059 2059 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2060 2060 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))
2061 2061 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT
2062 2062 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2063 2063 HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))
2064 2064 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG
2065 2065 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2066 2066 // Float and double probes don't return value because dtrace doesn't currently support it
2067 2067 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))
2068 2068 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT
2069 2069 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2070 2070 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())
2071 2071 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE
2072 2072 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2073 2073 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())
2074 2074
2075 2075 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \
2076 2076 , EntryProbe, ReturnProbe) \
2077 2077 \
2078 2078 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \
2079 2079 , ReturnProbe);\
2080 2080 \
2081 2081 JNI_ENTRY(ResultType, \
2082 2082 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
2083 2083 JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \
2084 2084 \
2085 2085 EntryProbe;\
2086 2086 ResultType ret;\
2087 2087 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
2088 2088 (const ResultType&)ret);\
2089 2089 \
2090 2090 JavaValue jvalue(Tag); \
2091 2091 JNI_ArgumentPusherVaArg ap(methodID, args); \
2092 2092 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2093 2093 ret = jvalue.get_##ResultType(); \
2094 2094 return ret;\
2095 2095 JNI_END
2096 2096
2097 2097 // the runtime type of subword integral basic types is integer
2098 2098 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN
2099 2099 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2100 2100 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))
2101 2101 DEFINE_CALLNONVIRTUALMETHODV(jbyte, Byte, T_BYTE
2102 2102 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2103 2103 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))
2104 2104 DEFINE_CALLNONVIRTUALMETHODV(jchar, Char, T_CHAR
2105 2105 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2106 2106 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))
2107 2107 DEFINE_CALLNONVIRTUALMETHODV(jshort, Short, T_SHORT
2108 2108 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2109 2109 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))
2110 2110
2111 2111 DEFINE_CALLNONVIRTUALMETHODV(jobject, Object, T_OBJECT
2112 2112 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2113 2113 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))
2114 2114 DEFINE_CALLNONVIRTUALMETHODV(jint, Int, T_INT
2115 2115 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2116 2116 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))
2117 2117 DEFINE_CALLNONVIRTUALMETHODV(jlong, Long, T_LONG
2118 2118 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2119 2119 // Float and double probes don't return value because dtrace doesn't currently support it
2120 2120 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))
2121 2121 DEFINE_CALLNONVIRTUALMETHODV(jfloat, Float, T_FLOAT
2122 2122 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2123 2123 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())
2124 2124 DEFINE_CALLNONVIRTUALMETHODV(jdouble, Double, T_DOUBLE
2125 2125 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2126 2126 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())
2127 2127
2128 2128 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \
2129 2129 , EntryProbe, ReturnProbe) \
2130 2130 \
2131 2131 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \
2132 2132 , ReturnProbe);\
2133 2133 \
2134 2134 JNI_ENTRY(ResultType, \
2135 2135 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2136 2136 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2137 2137 \
2138 2138 EntryProbe;\
2139 2139 ResultType ret;\
2140 2140 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2141 2141 (const ResultType&)ret);\
2142 2142 \
2143 2143 JavaValue jvalue(Tag); \
2144 2144 JNI_ArgumentPusherArray ap(methodID, args); \
2145 2145 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2146 2146 ret = jvalue.get_##ResultType(); \
2147 2147 return ret;\
2148 2148 JNI_END
2149 2149
2150 2150 // the runtime type of subword integral basic types is integer
2151 2151 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN
2152 2152 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2153 2153 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))
2154 2154 DEFINE_CALLNONVIRTUALMETHODA(jbyte, Byte, T_BYTE
2155 2155 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2156 2156 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))
2157 2157 DEFINE_CALLNONVIRTUALMETHODA(jchar, Char, T_CHAR
2158 2158 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2159 2159 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))
2160 2160 DEFINE_CALLNONVIRTUALMETHODA(jshort, Short, T_SHORT
2161 2161 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2162 2162 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))
2163 2163
2164 2164 DEFINE_CALLNONVIRTUALMETHODA(jobject, Object, T_OBJECT
2165 2165 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2166 2166 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))
2167 2167 DEFINE_CALLNONVIRTUALMETHODA(jint, Int, T_INT
2168 2168 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2169 2169 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))
2170 2170 DEFINE_CALLNONVIRTUALMETHODA(jlong, Long, T_LONG
2171 2171 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2172 2172 // Float and double probes don't return value because dtrace doesn't currently support it
2173 2173 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))
2174 2174 DEFINE_CALLNONVIRTUALMETHODA(jfloat, Float, T_FLOAT
2175 2175 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2176 2176 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())
2177 2177 DEFINE_CALLNONVIRTUALMETHODA(jdouble, Double, T_DOUBLE
2178 2178 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2179 2179 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())
2180 2180
2181 2181 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod
2182 2182 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());
2183 2183 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV
2184 2184 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());
2185 2185 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA
2186 2186 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());
2187 2187 #endif /* USDT2 */
2188 2188
2189 2189 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))
2190 2190 JNIWrapper("CallNonvirtualVoidMethod");
2191 2191
2192 2192 #ifndef USDT2
2193 2193 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,
2194 2194 env, obj, cls, methodID);
2195 2195 #else /* USDT2 */
2196 2196 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(
2197 2197 env, obj, cls, (uintptr_t) methodID);
2198 2198 #endif /* USDT2 */
2199 2199 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);
2200 2200
2201 2201 va_list args;
2202 2202 va_start(args, methodID);
2203 2203 JavaValue jvalue(T_VOID);
2204 2204 JNI_ArgumentPusherVaArg ap(methodID, args);
2205 2205 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2206 2206 va_end(args);
2207 2207 JNI_END
2208 2208
2209 2209
2210 2210 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))
2211 2211 JNIWrapper("CallNonvirtualVoidMethodV");
2212 2212
2213 2213 #ifndef USDT2
2214 2214 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,
2215 2215 env, obj, cls, methodID);
2216 2216 #else /* USDT2 */
2217 2217 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(
2218 2218 env, obj, cls, (uintptr_t) methodID);
2219 2219 #endif /* USDT2 */
2220 2220 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);
2221 2221
2222 2222 JavaValue jvalue(T_VOID);
2223 2223 JNI_ArgumentPusherVaArg ap(methodID, args);
2224 2224 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2225 2225 JNI_END
2226 2226
2227 2227
2228 2228 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))
2229 2229 JNIWrapper("CallNonvirtualVoidMethodA");
2230 2230 #ifndef USDT2
2231 2231 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,
2232 2232 env, obj, cls, methodID);
2233 2233 #else /* USDT2 */
2234 2234 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(
2235 2235 env, obj, cls, (uintptr_t) methodID);
2236 2236 #endif /* USDT2 */
2237 2237 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);
2238 2238 JavaValue jvalue(T_VOID);
2239 2239 JNI_ArgumentPusherArray ap(methodID, args);
2240 2240 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2241 2241 JNI_END
2242 2242
2243 2243
2244 2244 #ifndef USDT2
2245 2245 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \
2246 2246 \
2247 2247 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\
2248 2248 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\
2249 2249 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\
2250 2250 \
2251 2251 JNI_ENTRY(ResultType, \
2252 2252 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2253 2253 JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2254 2254 \
2255 2255 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\
2256 2256 ResultType ret = 0;\
2257 2257 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2258 2258 (const ResultType&)ret);\
2259 2259 \
2260 2260 va_list args; \
2261 2261 va_start(args, methodID); \
2262 2262 JavaValue jvalue(Tag); \
2263 2263 JNI_ArgumentPusherVaArg ap(methodID, args); \
2264 2264 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2265 2265 va_end(args); \
2266 2266 ret = jvalue.get_##ResultType(); \
2267 2267 return ret;\
2268 2268 JNI_END \
2269 2269 \
2270 2270 JNI_ENTRY(ResultType, \
2271 2271 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2272 2272 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2273 2273 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\
2274 2274 ResultType ret = 0;\
2275 2275 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2276 2276 (const ResultType&)ret);\
2277 2277 \
2278 2278 JavaValue jvalue(Tag); \
2279 2279 JNI_ArgumentPusherVaArg ap(methodID, args); \
2280 2280 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2281 2281 ret = jvalue.get_##ResultType(); \
2282 2282 return ret;\
2283 2283 JNI_END \
2284 2284 \
2285 2285 JNI_ENTRY(ResultType, \
2286 2286 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2287 2287 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2288 2288 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\
2289 2289 ResultType ret = 0;\
2290 2290 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2291 2291 (const ResultType&)ret);\
2292 2292 \
2293 2293 JavaValue jvalue(Tag); \
2294 2294 JNI_ArgumentPusherArray ap(methodID, args); \
2295 2295 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2296 2296 ret = jvalue.get_##ResultType(); \
2297 2297 return ret;\
2298 2298 JNI_END
2299 2299
2300 2300 // the runtime type of subword integral basic types is integer
2301 2301 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)
2302 2302 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE)
2303 2303 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR)
2304 2304 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT)
2305 2305
2306 2306 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT)
2307 2307 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT)
2308 2308 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG)
2309 2309 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT)
2310 2310 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE)
2311 2311
2312 2312
2313 2313 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);
2314 2314 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);
2315 2315 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);
2316 2316
2317 2317 #else /* USDT2 */
2318 2318
2319 2319 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \
2320 2320 , EntryProbe, ResultProbe) \
2321 2321 \
2322 2322 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \
2323 2323 , ResultProbe); \
2324 2324 \
2325 2325 JNI_ENTRY(ResultType, \
2326 2326 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2327 2327 JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2328 2328 \
2329 2329 EntryProbe; \
2330 2330 ResultType ret = 0;\
2331 2331 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2332 2332 (const ResultType&)ret);\
2333 2333 \
2334 2334 va_list args; \
2335 2335 va_start(args, methodID); \
2336 2336 JavaValue jvalue(Tag); \
2337 2337 JNI_ArgumentPusherVaArg ap(methodID, args); \
2338 2338 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2339 2339 va_end(args); \
2340 2340 ret = jvalue.get_##ResultType(); \
2341 2341 return ret;\
2342 2342 JNI_END
2343 2343
2344 2344 // the runtime type of subword integral basic types is integer
2345 2345 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN
2346 2346 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2347 2347 HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));
2348 2348 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE
2349 2349 , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2350 2350 HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));
2351 2351 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR
2352 2352 , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2353 2353 HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));
2354 2354 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT
2355 2355 , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2356 2356 HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));
2357 2357
2358 2358 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT
2359 2359 , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2360 2360 HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));
2361 2361 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT
2362 2362 , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2363 2363 HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));
2364 2364 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG
2365 2365 , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2366 2366 HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));
2367 2367 // Float and double probes don't return value because dtrace doesn't currently support it
2368 2368 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT
2369 2369 , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2370 2370 HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());
2371 2371 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE
2372 2372 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2373 2373 HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());
2374 2374
2375 2375 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \
2376 2376 , EntryProbe, ResultProbe) \
2377 2377 \
2378 2378 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \
2379 2379 , ResultProbe); \
2380 2380 \
2381 2381 JNI_ENTRY(ResultType, \
2382 2382 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2383 2383 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2384 2384 \
2385 2385 EntryProbe; \
2386 2386 ResultType ret = 0;\
2387 2387 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2388 2388 (const ResultType&)ret);\
2389 2389 \
2390 2390 JavaValue jvalue(Tag); \
2391 2391 JNI_ArgumentPusherVaArg ap(methodID, args); \
2392 2392 /* Make sure class is initialized before trying to invoke its method */ \
2393 2393 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \
2394 2394 k()->initialize(CHECK_0); \
2395 2395 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2396 2396 va_end(args); \
2397 2397 ret = jvalue.get_##ResultType(); \
2398 2398 return ret;\
2399 2399 JNI_END
2400 2400
2401 2401 // the runtime type of subword integral basic types is integer
2402 2402 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN
2403 2403 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2404 2404 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));
2405 2405 DEFINE_CALLSTATICMETHODV(jbyte, Byte, T_BYTE
2406 2406 , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2407 2407 HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));
2408 2408 DEFINE_CALLSTATICMETHODV(jchar, Char, T_CHAR
2409 2409 , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2410 2410 HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));
2411 2411 DEFINE_CALLSTATICMETHODV(jshort, Short, T_SHORT
2412 2412 , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2413 2413 HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));
2414 2414
2415 2415 DEFINE_CALLSTATICMETHODV(jobject, Object, T_OBJECT
2416 2416 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2417 2417 HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));
2418 2418 DEFINE_CALLSTATICMETHODV(jint, Int, T_INT
2419 2419 , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2420 2420 HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));
2421 2421 DEFINE_CALLSTATICMETHODV(jlong, Long, T_LONG
2422 2422 , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2423 2423 HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));
2424 2424 // Float and double probes don't return value because dtrace doesn't currently support it
2425 2425 DEFINE_CALLSTATICMETHODV(jfloat, Float, T_FLOAT
2426 2426 , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2427 2427 HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());
2428 2428 DEFINE_CALLSTATICMETHODV(jdouble, Double, T_DOUBLE
2429 2429 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2430 2430 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());
2431 2431
2432 2432 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \
2433 2433 , EntryProbe, ResultProbe) \
2434 2434 \
2435 2435 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \
2436 2436 , ResultProbe); \
2437 2437 \
2438 2438 JNI_ENTRY(ResultType, \
2439 2439 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2440 2440 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2441 2441 \
2442 2442 EntryProbe; \
2443 2443 ResultType ret = 0;\
2444 2444 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2445 2445 (const ResultType&)ret);\
2446 2446 \
2447 2447 JavaValue jvalue(Tag); \
2448 2448 JNI_ArgumentPusherArray ap(methodID, args); \
2449 2449 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2450 2450 ret = jvalue.get_##ResultType(); \
2451 2451 return ret;\
2452 2452 JNI_END
2453 2453
2454 2454 // the runtime type of subword integral basic types is integer
2455 2455 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN
2456 2456 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2457 2457 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));
2458 2458 DEFINE_CALLSTATICMETHODA(jbyte, Byte, T_BYTE
2459 2459 , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2460 2460 HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));
2461 2461 DEFINE_CALLSTATICMETHODA(jchar, Char, T_CHAR
2462 2462 , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2463 2463 HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));
2464 2464 DEFINE_CALLSTATICMETHODA(jshort, Short, T_SHORT
2465 2465 , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2466 2466 HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));
2467 2467
2468 2468 DEFINE_CALLSTATICMETHODA(jobject, Object, T_OBJECT
2469 2469 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2470 2470 HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));
2471 2471 DEFINE_CALLSTATICMETHODA(jint, Int, T_INT
2472 2472 , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2473 2473 HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));
2474 2474 DEFINE_CALLSTATICMETHODA(jlong, Long, T_LONG
2475 2475 , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2476 2476 HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));
2477 2477 // Float and double probes don't return value because dtrace doesn't currently support it
2478 2478 DEFINE_CALLSTATICMETHODA(jfloat, Float, T_FLOAT
2479 2479 , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2480 2480 HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());
2481 2481 DEFINE_CALLSTATICMETHODA(jdouble, Double, T_DOUBLE
2482 2482 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2483 2483 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());
2484 2484
2485 2485 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod
2486 2486 , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());
2487 2487 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV
2488 2488 , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());
2489 2489 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA
2490 2490 , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());
2491 2491 #endif /* USDT2 */
2492 2492
2493 2493 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))
2494 2494 JNIWrapper("CallStaticVoidMethod");
2495 2495 #ifndef USDT2
2496 2496 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);
2497 2497 #else /* USDT2 */
2498 2498 HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(
2499 2499 env, cls, (uintptr_t) methodID);
2500 2500 #endif /* USDT2 */
2501 2501 DT_VOID_RETURN_MARK(CallStaticVoidMethod);
2502 2502
2503 2503 va_list args;
2504 2504 va_start(args, methodID);
2505 2505 JavaValue jvalue(T_VOID);
2506 2506 JNI_ArgumentPusherVaArg ap(methodID, args);
2507 2507 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2508 2508 va_end(args);
2509 2509 JNI_END
2510 2510
2511 2511
2512 2512 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))
2513 2513 JNIWrapper("CallStaticVoidMethodV");
2514 2514 #ifndef USDT2
2515 2515 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);
2516 2516 #else /* USDT2 */
2517 2517 HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(
2518 2518 env, cls, (uintptr_t) methodID);
2519 2519 #endif /* USDT2 */
2520 2520 DT_VOID_RETURN_MARK(CallStaticVoidMethodV);
2521 2521
2522 2522 JavaValue jvalue(T_VOID);
2523 2523 JNI_ArgumentPusherVaArg ap(methodID, args);
2524 2524 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2525 2525 JNI_END
2526 2526
2527 2527
2528 2528 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))
2529 2529 JNIWrapper("CallStaticVoidMethodA");
2530 2530 #ifndef USDT2
2531 2531 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);
2532 2532 #else /* USDT2 */
2533 2533 HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(
2534 2534 env, cls, (uintptr_t) methodID);
2535 2535 #endif /* USDT2 */
2536 2536 DT_VOID_RETURN_MARK(CallStaticVoidMethodA);
2537 2537
2538 2538 JavaValue jvalue(T_VOID);
2539 2539 JNI_ArgumentPusherArray ap(methodID, args);
2540 2540 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2541 2541 JNI_END
2542 2542
2543 2543
2544 2544 //
2545 2545 // Accessing Fields
2546 2546 //
2547 2547
2548 2548
2549 2549 #ifndef USDT2
2550 2550 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);
2551 2551 #else /* USDT2 */
2552 2552 DT_RETURN_MARK_DECL(GetFieldID, jfieldID
2553 2553 , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));
2554 2554 #endif /* USDT2 */
2555 2555
2556 2556 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,
2557 2557 const char *name, const char *sig))
2558 2558 JNIWrapper("GetFieldID");
2559 2559 #ifndef USDT2
2560 2560 DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);
2561 2561 #else /* USDT2 */
2562 2562 HOTSPOT_JNI_GETFIELDID_ENTRY(
2563 2563 env, clazz, (char *) name, (char *) sig);
2564 2564 #endif /* USDT2 */
2565 2565 jfieldID ret = 0;
2566 2566 DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);
2567 2567
2568 2568 // The class should have been loaded (we have an instance of the class
2569 2569 // passed in) so the field and signature should already be in the symbol
2570 2570 // table. If they're not there, the field doesn't exist.
2571 2571 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2572 2572 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2573 2573 if (fieldname == NULL || signame == NULL) {
2574 2574 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2575 2575 }
2576 2576 KlassHandle k(THREAD,
2577 2577 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2578 2578 // Make sure class is initialized before handing id's out to fields
2579 2579 k()->initialize(CHECK_NULL);
2580 2580
2581 2581 fieldDescriptor fd;
2582 2582 if (!k()->oop_is_instance() ||
2583 2583 !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {
2584 2584 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2585 2585 }
2586 2586
2587 2587 // A jfieldID for a non-static field is simply the offset of the field within the instanceOop
2588 2588 // It may also have hash bits for k, if VerifyJNIFields is turned on.
2589 2589 ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());
2590 2590 return ret;
2591 2591 JNI_END
2592 2592
2593 2593
2594 2594 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))
2595 2595 JNIWrapper("GetObjectField");
2596 2596 #ifndef USDT2
2597 2597 DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);
2598 2598 #else /* USDT2 */
2599 2599 HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(
2600 2600 env, obj, (uintptr_t) fieldID);
2601 2601 #endif /* USDT2 */
2602 2602 oop o = JNIHandles::resolve_non_null(obj);
2603 2603 Klass* k = o->klass();
2604 2604 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2605 2605 // Keep JVMTI addition small and only check enabled flag here.
2606 2606 // jni_GetField_probe() assumes that is okay to create handles.
2607 2607 if (JvmtiExport::should_post_field_access()) {
2608 2608 o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);
2609 2609 }
2610 2610 jobject ret = JNIHandles::make_local(env, o->obj_field(offset));
2611 2611 #if INCLUDE_ALL_GCS
2612 2612 // If G1 is enabled and we are accessing the value of the referent
2613 2613 // field in a reference object then we need to register a non-null
2614 2614 // referent with the SATB barrier.
2615 2615 if (UseG1GC) {
2616 2616 bool needs_barrier = false;
2617 2617
2618 2618 if (ret != NULL &&
2619 2619 offset == java_lang_ref_Reference::referent_offset &&
2620 2620 InstanceKlass::cast(k)->reference_type() != REF_NONE) {
2621 2621 assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");
2622 2622 needs_barrier = true;
2623 2623 }
2624 2624
2625 2625 if (needs_barrier) {
2626 2626 oop referent = JNIHandles::resolve(ret);
2627 2627 G1SATBCardTableModRefBS::enqueue(referent);
2628 2628 }
2629 2629 }
2630 2630 #endif // INCLUDE_ALL_GCS
2631 2631 #ifndef USDT2
2632 2632 DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);
2633 2633 #else /* USDT2 */
2634 2634 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(
2635 2635 ret);
2636 2636 #endif /* USDT2 */
2637 2637 return ret;
2638 2638 JNI_END
2639 2639
2640 2640
2641 2641 #ifndef USDT2
2642 2642 #define DEFINE_GETFIELD(Return,Fieldname,Result) \
2643 2643 \
2644 2644 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\
2645 2645 \
2646 2646 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2647 2647 JNIWrapper("Get" XSTR(Result) "Field"); \
2648 2648 \
2649 2649 DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\
2650 2650 Return ret = 0;\
2651 2651 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2652 2652 \
2653 2653 oop o = JNIHandles::resolve_non_null(obj); \
2654 2654 Klass* k = o->klass(); \
2655 2655 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2656 2656 /* Keep JVMTI addition small and only check enabled flag here. */ \
2657 2657 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2658 2658 /* and creates a ResetNoHandleMark. */ \
2659 2659 if (JvmtiExport::should_post_field_access()) { \
2660 2660 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2661 2661 } \
2662 2662 ret = o->Fieldname##_field(offset); \
2663 2663 return ret; \
2664 2664 JNI_END
2665 2665
2666 2666 DEFINE_GETFIELD(jboolean, bool, Boolean)
2667 2667 DEFINE_GETFIELD(jbyte, byte, Byte)
2668 2668 DEFINE_GETFIELD(jchar, char, Char)
2669 2669 DEFINE_GETFIELD(jshort, short, Short)
2670 2670 DEFINE_GETFIELD(jint, int, Int)
2671 2671 DEFINE_GETFIELD(jlong, long, Long)
2672 2672 DEFINE_GETFIELD(jfloat, float, Float)
2673 2673 DEFINE_GETFIELD(jdouble, double, Double)
2674 2674
2675 2675 #else /* USDT2 */
2676 2676
2677 2677 #define DEFINE_GETFIELD(Return,Fieldname,Result \
2678 2678 , EntryProbe, ReturnProbe) \
2679 2679 \
2680 2680 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \
2681 2681 , ReturnProbe); \
2682 2682 \
2683 2683 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2684 2684 JNIWrapper("Get" XSTR(Result) "Field"); \
2685 2685 \
2686 2686 EntryProbe; \
2687 2687 Return ret = 0;\
2688 2688 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2689 2689 \
2690 2690 oop o = JNIHandles::resolve_non_null(obj); \
2691 2691 Klass* k = o->klass(); \
2692 2692 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2693 2693 /* Keep JVMTI addition small and only check enabled flag here. */ \
2694 2694 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2695 2695 /* and creates a ResetNoHandleMark. */ \
2696 2696 if (JvmtiExport::should_post_field_access()) { \
2697 2697 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2698 2698 } \
2699 2699 ret = o->Fieldname##_field(offset); \
2700 2700 return ret; \
2701 2701 JNI_END
2702 2702
2703 2703 DEFINE_GETFIELD(jboolean, bool, Boolean
2704 2704 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2705 2705 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))
2706 2706 DEFINE_GETFIELD(jbyte, byte, Byte
2707 2707 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2708 2708 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))
2709 2709 DEFINE_GETFIELD(jchar, char, Char
2710 2710 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2711 2711 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))
2712 2712 DEFINE_GETFIELD(jshort, short, Short
2713 2713 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2714 2714 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))
2715 2715 DEFINE_GETFIELD(jint, int, Int
2716 2716 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2717 2717 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))
2718 2718 DEFINE_GETFIELD(jlong, long, Long
2719 2719 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2720 2720 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))
2721 2721 // Float and double probes don't return value because dtrace doesn't currently support it
2722 2722 DEFINE_GETFIELD(jfloat, float, Float
2723 2723 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2724 2724 HOTSPOT_JNI_GETFLOATFIELD_RETURN())
2725 2725 DEFINE_GETFIELD(jdouble, double, Double
2726 2726 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2727 2727 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())
2728 2728 #endif /* USDT2 */
2729 2729
2730 2730 address jni_GetBooleanField_addr() {
2731 2731 return (address)jni_GetBooleanField;
2732 2732 }
2733 2733 address jni_GetByteField_addr() {
2734 2734 return (address)jni_GetByteField;
2735 2735 }
2736 2736 address jni_GetCharField_addr() {
2737 2737 return (address)jni_GetCharField;
2738 2738 }
2739 2739 address jni_GetShortField_addr() {
2740 2740 return (address)jni_GetShortField;
2741 2741 }
2742 2742 address jni_GetIntField_addr() {
2743 2743 return (address)jni_GetIntField;
2744 2744 }
2745 2745 address jni_GetLongField_addr() {
2746 2746 return (address)jni_GetLongField;
2747 2747 }
2748 2748 address jni_GetFloatField_addr() {
2749 2749 return (address)jni_GetFloatField;
2750 2750 }
2751 2751 address jni_GetDoubleField_addr() {
2752 2752 return (address)jni_GetDoubleField;
2753 2753 }
2754 2754
2755 2755 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))
2756 2756 JNIWrapper("SetObjectField");
2757 2757 #ifndef USDT2
2758 2758 DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);
2759 2759 #else /* USDT2 */
2760 2760 HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(
2761 2761 env, obj, (uintptr_t) fieldID, value);
2762 2762 #endif /* USDT2 */
2763 2763 oop o = JNIHandles::resolve_non_null(obj);
2764 2764 Klass* k = o->klass();
2765 2765 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2766 2766 // Keep JVMTI addition small and only check enabled flag here.
2767 2767 // jni_SetField_probe_nh() assumes that is not okay to create handles
2768 2768 // and creates a ResetNoHandleMark.
2769 2769 if (JvmtiExport::should_post_field_modification()) {
2770 2770 jvalue field_value;
2771 2771 field_value.l = value;
2772 2772 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);
2773 2773 }
2774 2774 o->obj_field_put(offset, JNIHandles::resolve(value));
2775 2775 #ifndef USDT2
2776 2776 DTRACE_PROBE(hotspot_jni, SetObjectField__return);
2777 2777 #else /* USDT2 */
2778 2778 HOTSPOT_JNI_SETOBJECTFIELD_RETURN(
2779 2779 );
2780 2780 #endif /* USDT2 */
2781 2781 JNI_END
2782 2782
2783 2783 #ifndef USDT2
2784 2784 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \
2785 2785 \
2786 2786 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2787 2787 JNIWrapper("Set" XSTR(Result) "Field"); \
2788 2788 \
2789 2789 FP_SELECT_##Result( \
2790 2790 DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \
2791 2791 DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \
2792 2792 \
2793 2793 oop o = JNIHandles::resolve_non_null(obj); \
2794 2794 Klass* k = o->klass(); \
2795 2795 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2796 2796 /* Keep JVMTI addition small and only check enabled flag here. */ \
2797 2797 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2798 2798 /* and creates a ResetNoHandleMark. */ \
2799 2799 if (JvmtiExport::should_post_field_modification()) { \
2800 2800 jvalue field_value; \
2801 2801 field_value.unionType = value; \
2802 2802 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2803 2803 } \
2804 2804 o->Fieldname##_field_put(offset, value); \
2805 2805 DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\
2806 2806 JNI_END
2807 2807
2808 2808 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z)
2809 2809 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b)
2810 2810 DEFINE_SETFIELD(jchar, char, Char, 'C', c)
2811 2811 DEFINE_SETFIELD(jshort, short, Short, 'S', s)
2812 2812 DEFINE_SETFIELD(jint, int, Int, 'I', i)
2813 2813 DEFINE_SETFIELD(jlong, long, Long, 'J', j)
2814 2814 DEFINE_SETFIELD(jfloat, float, Float, 'F', f)
2815 2815 DEFINE_SETFIELD(jdouble, double, Double, 'D', d)
2816 2816
2817 2817 #else /* USDT2 */
2818 2818
2819 2819 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \
2820 2820 , EntryProbe, ReturnProbe) \
2821 2821 \
2822 2822 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2823 2823 JNIWrapper("Set" XSTR(Result) "Field"); \
2824 2824 \
2825 2825 EntryProbe; \
2826 2826 \
2827 2827 oop o = JNIHandles::resolve_non_null(obj); \
2828 2828 Klass* k = o->klass(); \
2829 2829 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2830 2830 /* Keep JVMTI addition small and only check enabled flag here. */ \
2831 2831 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2832 2832 /* and creates a ResetNoHandleMark. */ \
2833 2833 if (JvmtiExport::should_post_field_modification()) { \
2834 2834 jvalue field_value; \
2835 2835 field_value.unionType = value; \
2836 2836 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2837 2837 } \
2838 2838 o->Fieldname##_field_put(offset, value); \
2839 2839 ReturnProbe; \
2840 2840 JNI_END
2841 2841
2842 2842 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z
2843 2843 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2844 2844 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
2845 2845 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b
2846 2846 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2847 2847 HOTSPOT_JNI_SETBYTEFIELD_RETURN())
2848 2848 DEFINE_SETFIELD(jchar, char, Char, 'C', c
2849 2849 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2850 2850 HOTSPOT_JNI_SETCHARFIELD_RETURN())
2851 2851 DEFINE_SETFIELD(jshort, short, Short, 'S', s
2852 2852 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2853 2853 HOTSPOT_JNI_SETSHORTFIELD_RETURN())
2854 2854 DEFINE_SETFIELD(jint, int, Int, 'I', i
2855 2855 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2856 2856 HOTSPOT_JNI_SETINTFIELD_RETURN())
2857 2857 DEFINE_SETFIELD(jlong, long, Long, 'J', j
2858 2858 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2859 2859 HOTSPOT_JNI_SETLONGFIELD_RETURN())
2860 2860 // Float and double probes don't return value because dtrace doesn't currently support it
2861 2861 DEFINE_SETFIELD(jfloat, float, Float, 'F', f
2862 2862 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2863 2863 HOTSPOT_JNI_SETFLOATFIELD_RETURN())
2864 2864 DEFINE_SETFIELD(jdouble, double, Double, 'D', d
2865 2865 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2866 2866 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())
2867 2867 #endif /* USDT2 */
2868 2868
2869 2869 #ifndef USDT2
2870 2870 DT_RETURN_MARK_DECL(ToReflectedField, jobject);
2871 2871 #else /* USDT2 */
2872 2872 DT_RETURN_MARK_DECL(ToReflectedField, jobject
2873 2873 , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));
2874 2874 #endif /* USDT2 */
2875 2875
2876 2876 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))
2877 2877 JNIWrapper("ToReflectedField");
2878 2878 #ifndef USDT2
2879 2879 DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,
2880 2880 env, cls, fieldID, isStatic);
2881 2881 #else /* USDT2 */
2882 2882 HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(
2883 2883 env, cls, (uintptr_t) fieldID, isStatic);
2884 2884 #endif /* USDT2 */
2885 2885 jobject ret = NULL;
2886 2886 DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);
2887 2887
2888 2888 fieldDescriptor fd;
2889 2889 bool found = false;
2890 2890 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));
2891 2891
2892 2892 assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");
2893 2893
2894 2894 if (isStatic) {
2895 2895 // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.
2896 2896 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2897 2897 assert(id->is_static_field_id(), "invalid static field id");
2898 2898 found = id->find_local_field(&fd);
2899 2899 } else {
2900 2900 // Non-static field. The fieldID is really the offset of the field within the instanceOop.
2901 2901 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2902 2902 found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);
2903 2903 }
2904 2904 assert(found, "bad fieldID passed into jni_ToReflectedField");
2905 2905 oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);
2906 2906 ret = JNIHandles::make_local(env, reflected);
2907 2907 return ret;
2908 2908 JNI_END
2909 2909
2910 2910
2911 2911 //
2912 2912 // Accessing Static Fields
2913 2913 //
2914 2914 #ifndef USDT2
2915 2915 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);
2916 2916 #else /* USDT2 */
2917 2917 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID
2918 2918 , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));
2919 2919 #endif /* USDT2 */
2920 2920
2921 2921 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,
2922 2922 const char *name, const char *sig))
2923 2923 JNIWrapper("GetStaticFieldID");
2924 2924 #ifndef USDT2
2925 2925 DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);
2926 2926 #else /* USDT2 */
2927 2927 HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(
2928 2928 env, clazz, (char *) name, (char *) sig);
2929 2929 #endif /* USDT2 */
2930 2930 jfieldID ret = NULL;
2931 2931 DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);
2932 2932
2933 2933 // The class should have been loaded (we have an instance of the class
2934 2934 // passed in) so the field and signature should already be in the symbol
2935 2935 // table. If they're not there, the field doesn't exist.
2936 2936 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2937 2937 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2938 2938 if (fieldname == NULL || signame == NULL) {
2939 2939 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2940 2940 }
2941 2941 KlassHandle k(THREAD,
2942 2942 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2943 2943 // Make sure class is initialized before handing id's out to static fields
2944 2944 k()->initialize(CHECK_NULL);
2945 2945
2946 2946 fieldDescriptor fd;
2947 2947 if (!k()->oop_is_instance() ||
2948 2948 !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {
2949 2949 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2950 2950 }
2951 2951
2952 2952 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
2953 2953 JNIid* id = fd.field_holder()->jni_id_for(fd.offset());
2954 2954 debug_only(id->set_is_static_field_id();)
2955 2955
2956 2956 debug_only(id->verify(fd.field_holder()));
2957 2957
2958 2958 ret = jfieldIDWorkaround::to_static_jfieldID(id);
2959 2959 return ret;
2960 2960 JNI_END
2961 2961
2962 2962
2963 2963 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))
2964 2964 JNIWrapper("GetStaticObjectField");
2965 2965 #ifndef USDT2
2966 2966 DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);
2967 2967 #else /* USDT2 */
2968 2968 HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(
2969 2969 env, clazz, (uintptr_t) fieldID);
2970 2970 #endif /* USDT2 */
2971 2971 #if INCLUDE_JNI_CHECK
2972 2972 DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)
2973 2973 #endif // INCLUDE_JNI_CHECK
2974 2974 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2975 2975 assert(id->is_static_field_id(), "invalid static field id");
2976 2976 // Keep JVMTI addition small and only check enabled flag here.
2977 2977 // jni_GetField_probe() assumes that is okay to create handles.
2978 2978 if (JvmtiExport::should_post_field_access()) {
2979 2979 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);
2980 2980 }
2981 2981 jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));
2982 2982 #ifndef USDT2
2983 2983 DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);
2984 2984 #else /* USDT2 */
2985 2985 HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(
2986 2986 ret);
2987 2987 #endif /* USDT2 */
2988 2988 return ret;
2989 2989 JNI_END
2990 2990
2991 2991 #ifndef USDT2
2992 2992 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \
2993 2993 \
2994 2994 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\
2995 2995 \
2996 2996 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
2997 2997 JNIWrapper("GetStatic" XSTR(Result) "Field"); \
2998 2998 DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\
2999 2999 Return ret = 0;\
3000 3000 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3001 3001 (const Return&)ret);\
3002 3002 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3003 3003 assert(id->is_static_field_id(), "invalid static field id"); \
3004 3004 /* Keep JVMTI addition small and only check enabled flag here. */ \
3005 3005 /* jni_GetField_probe() assumes that is okay to create handles. */ \
3006 3006 if (JvmtiExport::should_post_field_access()) { \
3007 3007 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3008 3008 } \
3009 3009 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3010 3010 return ret;\
3011 3011 JNI_END
3012 3012
3013 3013 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean)
3014 3014 DEFINE_GETSTATICFIELD(jbyte, byte, Byte)
3015 3015 DEFINE_GETSTATICFIELD(jchar, char, Char)
3016 3016 DEFINE_GETSTATICFIELD(jshort, short, Short)
3017 3017 DEFINE_GETSTATICFIELD(jint, int, Int)
3018 3018 DEFINE_GETSTATICFIELD(jlong, long, Long)
3019 3019 DEFINE_GETSTATICFIELD(jfloat, float, Float)
3020 3020 DEFINE_GETSTATICFIELD(jdouble, double, Double)
3021 3021
3022 3022 #else /* USDT2 */
3023 3023
3024 3024 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \
3025 3025 , EntryProbe, ReturnProbe) \
3026 3026 \
3027 3027 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \
3028 3028 , ReturnProbe); \
3029 3029 \
3030 3030 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3031 3031 JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3032 3032 EntryProbe; \
3033 3033 Return ret = 0;\
3034 3034 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3035 3035 (const Return&)ret);\
3036 3036 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3037 3037 assert(id->is_static_field_id(), "invalid static field id"); \
3038 3038 /* Keep JVMTI addition small and only check enabled flag here. */ \
3039 3039 /* jni_GetField_probe() assumes that is okay to create handles. */ \
3040 3040 if (JvmtiExport::should_post_field_access()) { \
3041 3041 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3042 3042 } \
3043 3043 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3044 3044 return ret;\
3045 3045 JNI_END
3046 3046
3047 3047 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean
3048 3048 , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))
3049 3049 DEFINE_GETSTATICFIELD(jbyte, byte, Byte
3050 3050 , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref) )
3051 3051 DEFINE_GETSTATICFIELD(jchar, char, Char
3052 3052 , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref) )
3053 3053 DEFINE_GETSTATICFIELD(jshort, short, Short
3054 3054 , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref) )
3055 3055 DEFINE_GETSTATICFIELD(jint, int, Int
3056 3056 , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref) )
3057 3057 DEFINE_GETSTATICFIELD(jlong, long, Long
3058 3058 , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref) )
3059 3059 // Float and double probes don't return value because dtrace doesn't currently support it
3060 3060 DEFINE_GETSTATICFIELD(jfloat, float, Float
3061 3061 , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN() )
3062 3062 DEFINE_GETSTATICFIELD(jdouble, double, Double
3063 3063 , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN() )
3064 3064 #endif /* USDT2 */
3065 3065
3066 3066 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))
3067 3067 JNIWrapper("SetStaticObjectField");
3068 3068 #ifndef USDT2
3069 3069 DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);
3070 3070 #else /* USDT2 */
3071 3071 HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(
3072 3072 env, clazz, (uintptr_t) fieldID, value);
3073 3073 #endif /* USDT2 */
3074 3074 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
3075 3075 assert(id->is_static_field_id(), "invalid static field id");
3076 3076 // Keep JVMTI addition small and only check enabled flag here.
3077 3077 // jni_SetField_probe() assumes that is okay to create handles.
3078 3078 if (JvmtiExport::should_post_field_modification()) {
3079 3079 jvalue field_value;
3080 3080 field_value.l = value;
3081 3081 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);
3082 3082 }
3083 3083 id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));
3084 3084 #ifndef USDT2
3085 3085 DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);
3086 3086 #else /* USDT2 */
3087 3087 HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(
3088 3088 );
3089 3089 #endif /* USDT2 */
3090 3090 JNI_END
3091 3091
3092 3092
3093 3093 #ifndef USDT2
3094 3094 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \
3095 3095 \
3096 3096 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3097 3097 JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3098 3098 FP_SELECT_##Result( \
3099 3099 DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \
3100 3100 DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \
3101 3101 \
3102 3102 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3103 3103 assert(id->is_static_field_id(), "invalid static field id"); \
3104 3104 /* Keep JVMTI addition small and only check enabled flag here. */ \
3105 3105 /* jni_SetField_probe() assumes that is okay to create handles. */ \
3106 3106 if (JvmtiExport::should_post_field_modification()) { \
3107 3107 jvalue field_value; \
3108 3108 field_value.unionType = value; \
3109 3109 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3110 3110 } \
3111 3111 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3112 3112 DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\
3113 3113 JNI_END
3114 3114
3115 3115 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z)
3116 3116 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b)
3117 3117 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c)
3118 3118 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s)
3119 3119 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i)
3120 3120 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j)
3121 3121 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f)
3122 3122 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d)
3123 3123
3124 3124 #else /* USDT2 */
3125 3125
3126 3126 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \
3127 3127 , EntryProbe, ReturnProbe) \
3128 3128 \
3129 3129 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3130 3130 JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3131 3131 EntryProbe; \
3132 3132 \
3133 3133 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3134 3134 assert(id->is_static_field_id(), "invalid static field id"); \
3135 3135 /* Keep JVMTI addition small and only check enabled flag here. */ \
3136 3136 /* jni_SetField_probe() assumes that is okay to create handles. */ \
3137 3137 if (JvmtiExport::should_post_field_modification()) { \
3138 3138 jvalue field_value; \
3139 3139 field_value.unionType = value; \
3140 3140 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3141 3141 } \
3142 3142 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3143 3143 ReturnProbe;\
3144 3144 JNI_END
3145 3145
3146 3146 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z
3147 3147 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),
3148 3148 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
3149 3149 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b
3150 3150 , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3151 3151 HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())
3152 3152 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c
3153 3153 , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3154 3154 HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())
3155 3155 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s
3156 3156 , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3157 3157 HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())
3158 3158 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i
3159 3159 , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3160 3160 HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())
3161 3161 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j
3162 3162 , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3163 3163 HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())
3164 3164 // Float and double probes don't return value because dtrace doesn't currently support it
3165 3165 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f
3166 3166 , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3167 3167 HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())
3168 3168 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d
3169 3169 , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3170 3170 HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())
3171 3171 #endif /* USDT2 */
3172 3172
3173 3173 //
3174 3174 // String Operations
3175 3175 //
3176 3176
3177 3177 // Unicode Interface
3178 3178
3179 3179 #ifndef USDT2
3180 3180 DT_RETURN_MARK_DECL(NewString, jstring);
3181 3181 #else /* USDT2 */
3182 3182 DT_RETURN_MARK_DECL(NewString, jstring
3183 3183 , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));
3184 3184 #endif /* USDT2 */
3185 3185
3186 3186 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))
3187 3187 JNIWrapper("NewString");
3188 3188 #ifndef USDT2
3189 3189 DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);
3190 3190 #else /* USDT2 */
3191 3191 HOTSPOT_JNI_NEWSTRING_ENTRY(
3192 3192 env, (uint16_t *) unicodeChars, len);
3193 3193 #endif /* USDT2 */
3194 3194 jstring ret = NULL;
3195 3195 DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);
3196 3196 oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);
3197 3197 ret = (jstring) JNIHandles::make_local(env, string);
3198 3198 return ret;
3199 3199 JNI_END
3200 3200
3201 3201
3202 3202 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))
3203 3203 JNIWrapper("GetStringLength");
3204 3204 #ifndef USDT2
3205 3205 DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);
3206 3206 #else /* USDT2 */
3207 3207 HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(
3208 3208 env, string);
3209 3209 #endif /* USDT2 */
3210 3210 jsize ret = 0;
3211 3211 oop s = JNIHandles::resolve_non_null(string);
3212 3212 if (java_lang_String::value(s) != NULL) {
3213 3213 ret = java_lang_String::length(s);
3214 3214 }
3215 3215 #ifndef USDT2
3216 3216 DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);
3217 3217 #else /* USDT2 */
3218 3218 HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(
3219 3219 ret);
3220 3220 #endif /* USDT2 */
3221 3221 return ret;
3222 3222 JNI_END
3223 3223
3224 3224
3225 3225 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(
3226 3226 JNIEnv *env, jstring string, jboolean *isCopy))
3227 3227 JNIWrapper("GetStringChars");
3228 3228 #ifndef USDT2
3229 3229 DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);
3230 3230 #else /* USDT2 */
3231 3231 HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(
3232 3232 env, string, (uintptr_t *) isCopy);
3233 3233 #endif /* USDT2 */
3234 3234 jchar* buf = NULL;
3235 3235 oop s = JNIHandles::resolve_non_null(string);
3236 3236 typeArrayOop s_value = java_lang_String::value(s);
3237 3237 if (s_value != NULL) {
3238 3238 int s_len = java_lang_String::length(s);
3239 3239 int s_offset = java_lang_String::offset(s);
3240 3240 buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal); // add one for zero termination
3241 3241 /* JNI Specification states return NULL on OOM */
3242 3242 if (buf != NULL) {
3243 3243 if (s_len > 0) {
3244 3244 memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);
3245 3245 }
3246 3246 buf[s_len] = 0;
3247 3247 //%note jni_5
3248 3248 if (isCopy != NULL) {
3249 3249 *isCopy = JNI_TRUE;
3250 3250 }
3251 3251 }
3252 3252 }
3253 3253 #ifndef USDT2
3254 3254 DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);
3255 3255 #else /* USDT2 */
3256 3256 HOTSPOT_JNI_GETSTRINGCHARS_RETURN(
3257 3257 buf);
3258 3258 #endif /* USDT2 */
3259 3259 return buf;
3260 3260 JNI_END
3261 3261
3262 3262
3263 3263 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))
3264 3264 JNIWrapper("ReleaseStringChars");
3265 3265 #ifndef USDT2
3266 3266 DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);
3267 3267 #else /* USDT2 */
3268 3268 HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(
3269 3269 env, str, (uint16_t *) chars);
3270 3270 #endif /* USDT2 */
3271 3271 //%note jni_6
3272 3272 if (chars != NULL) {
3273 3273 // Since String objects are supposed to be immutable, don't copy any
3274 3274 // new data back. A bad user will have to go after the char array.
3275 3275 FreeHeap((void*) chars);
3276 3276 }
3277 3277 #ifndef USDT2
3278 3278 DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);
3279 3279 #else /* USDT2 */
3280 3280 HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(
3281 3281 );
3282 3282 #endif /* USDT2 */
3283 3283 JNI_END
3284 3284
3285 3285
3286 3286 // UTF Interface
3287 3287
3288 3288 #ifndef USDT2
3289 3289 DT_RETURN_MARK_DECL(NewStringUTF, jstring);
3290 3290 #else /* USDT2 */
3291 3291 DT_RETURN_MARK_DECL(NewStringUTF, jstring
3292 3292 , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));
3293 3293 #endif /* USDT2 */
3294 3294
3295 3295 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))
3296 3296 JNIWrapper("NewStringUTF");
3297 3297 #ifndef USDT2
3298 3298 DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);
3299 3299 #else /* USDT2 */
3300 3300 HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(
3301 3301 env, (char *) bytes);
3302 3302 #endif /* USDT2 */
3303 3303 jstring ret;
3304 3304 DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);
3305 3305
3306 3306 oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);
3307 3307 ret = (jstring) JNIHandles::make_local(env, result);
3308 3308 return ret;
3309 3309 JNI_END
3310 3310
3311 3311
3312 3312 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))
3313 3313 JNIWrapper("GetStringUTFLength");
3314 3314 #ifndef USDT2
3315 3315 DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);
3316 3316 #else /* USDT2 */
3317 3317 HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(
3318 3318 env, string);
3319 3319 #endif /* USDT2 */
3320 3320 jsize ret = 0;
3321 3321 oop java_string = JNIHandles::resolve_non_null(string);
3322 3322 if (java_lang_String::value(java_string) != NULL) {
3323 3323 ret = java_lang_String::utf8_length(java_string);
3324 3324 }
3325 3325 #ifndef USDT2
3326 3326 DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);
3327 3327 #else /* USDT2 */
3328 3328 HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(
3329 3329 ret);
3330 3330 #endif /* USDT2 */
3331 3331 return ret;
3332 3332 JNI_END
3333 3333
3334 3334
3335 3335 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))
3336 3336 JNIWrapper("GetStringUTFChars");
3337 3337 #ifndef USDT2
3338 3338 DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);
3339 3339 #else /* USDT2 */
3340 3340 HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(
3341 3341 env, string, (uintptr_t *) isCopy);
3342 3342 #endif /* USDT2 */
3343 3343 char* result = NULL;
3344 3344 oop java_string = JNIHandles::resolve_non_null(string);
3345 3345 if (java_lang_String::value(java_string) != NULL) {
3346 3346 size_t length = java_lang_String::utf8_length(java_string);
3347 3347 /* JNI Specification states return NULL on OOM */
3348 3348 result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);
3349 3349 if (result != NULL) {
3350 3350 java_lang_String::as_utf8_string(java_string, result, (int) length + 1);
3351 3351 if (isCopy != NULL) {
3352 3352 *isCopy = JNI_TRUE;
3353 3353 }
3354 3354 }
3355 3355 }
3356 3356 #ifndef USDT2
3357 3357 DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);
3358 3358 #else /* USDT2 */
3359 3359 HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(
3360 3360 result);
3361 3361 #endif /* USDT2 */
3362 3362 return result;
3363 3363 JNI_END
3364 3364
3365 3365
3366 3366 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))
3367 3367 JNIWrapper("ReleaseStringUTFChars");
3368 3368 #ifndef USDT2
3369 3369 DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);
3370 3370 #else /* USDT2 */
3371 3371 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(
3372 3372 env, str, (char *) chars);
3373 3373 #endif /* USDT2 */
3374 3374 if (chars != NULL) {
3375 3375 FreeHeap((char*) chars);
3376 3376 }
3377 3377 #ifndef USDT2
3378 3378 DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);
3379 3379 #else /* USDT2 */
3380 3380 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(
3381 3381 );
3382 3382 #endif /* USDT2 */
3383 3383 JNI_END
3384 3384
3385 3385
3386 3386 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))
3387 3387 JNIWrapper("GetArrayLength");
3388 3388 #ifndef USDT2
3389 3389 DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);
3390 3390 #else /* USDT2 */
3391 3391 HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(
3392 3392 env, array);
3393 3393 #endif /* USDT2 */
3394 3394 arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));
3395 3395 assert(a->is_array(), "must be array");
3396 3396 jsize ret = a->length();
3397 3397 #ifndef USDT2
3398 3398 DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);
3399 3399 #else /* USDT2 */
3400 3400 HOTSPOT_JNI_GETARRAYLENGTH_RETURN(
3401 3401 ret);
3402 3402 #endif /* USDT2 */
3403 3403 return ret;
3404 3404 JNI_END
3405 3405
3406 3406
3407 3407 //
3408 3408 // Object Array Operations
3409 3409 //
3410 3410
3411 3411 #ifndef USDT2
3412 3412 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);
3413 3413 #else /* USDT2 */
3414 3414 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray
3415 3415 , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));
3416 3416 #endif /* USDT2 */
3417 3417
3418 3418 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))
3419 3419 JNIWrapper("NewObjectArray");
3420 3420 #ifndef USDT2
3421 3421 DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);
3422 3422 #else /* USDT2 */
3423 3423 HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(
3424 3424 env, length, elementClass, initialElement);
3425 3425 #endif /* USDT2 */
3426 3426 jobjectArray ret = NULL;
3427 3427 DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);
3428 3428 KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));
3429 3429 Klass* ako = ek()->array_klass(CHECK_NULL);
3430 3430 KlassHandle ak = KlassHandle(THREAD, ako);
3431 3431 ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);
3432 3432 objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);
3433 3433 oop initial_value = JNIHandles::resolve(initialElement);
3434 3434 if (initial_value != NULL) { // array already initialized with NULL
3435 3435 for (int index = 0; index < length; index++) {
3436 3436 result->obj_at_put(index, initial_value);
3437 3437 }
3438 3438 }
3439 3439 ret = (jobjectArray) JNIHandles::make_local(env, result);
3440 3440 return ret;
3441 3441 JNI_END
3442 3442
3443 3443 #ifndef USDT2
3444 3444 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);
3445 3445 #else /* USDT2 */
3446 3446 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject
3447 3447 , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));
3448 3448 #endif /* USDT2 */
3449 3449
3450 3450 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))
3451 3451 JNIWrapper("GetObjectArrayElement");
3452 3452 #ifndef USDT2
3453 3453 DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);
3454 3454 #else /* USDT2 */
3455 3455 HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(
3456 3456 env, array, index);
3457 3457 #endif /* USDT2 */
3458 3458 jobject ret = NULL;
3459 3459 DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);
3460 3460 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3461 3461 if (a->is_within_bounds(index)) {
3462 3462 ret = JNIHandles::make_local(env, a->obj_at(index));
3463 3463 return ret;
3464 3464 } else {
3465 3465 char buf[jintAsStringSize];
3466 3466 sprintf(buf, "%d", index);
3467 3467 THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3468 3468 }
3469 3469 JNI_END
3470 3470
3471 3471 #ifndef USDT2
3472 3472 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);
3473 3473 #else /* USDT2 */
3474 3474 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement
3475 3475 , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());
3476 3476 #endif /* USDT2 */
3477 3477
3478 3478 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))
3479 3479 JNIWrapper("SetObjectArrayElement");
3480 3480 #ifndef USDT2
3481 3481 DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);
3482 3482 #else /* USDT2 */
3483 3483 HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(
3484 3484 env, array, index, value);
3485 3485 #endif /* USDT2 */
3486 3486 DT_VOID_RETURN_MARK(SetObjectArrayElement);
3487 3487
3488 3488 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3489 3489 oop v = JNIHandles::resolve(value);
3490 3490 if (a->is_within_bounds(index)) {
3491 3491 if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {
3492 3492 a->obj_at_put(index, v);
3493 3493 } else {
3494 3494 THROW(vmSymbols::java_lang_ArrayStoreException());
3495 3495 }
3496 3496 } else {
3497 3497 char buf[jintAsStringSize];
3498 3498 sprintf(buf, "%d", index);
3499 3499 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3500 3500 }
3501 3501 JNI_END
3502 3502
3503 3503
3504 3504 #ifndef USDT2
3505 3505 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \
3506 3506 \
3507 3507 DT_RETURN_MARK_DECL(New##Result##Array, Return); \
3508 3508 \
3509 3509 JNI_ENTRY(Return, \
3510 3510 jni_New##Result##Array(JNIEnv *env, jsize len)) \
3511 3511 JNIWrapper("New" XSTR(Result) "Array"); \
3512 3512 DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\
3513 3513 Return ret = NULL;\
3514 3514 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3515 3515 \
3516 3516 oop obj= oopFactory::Allocator(len, CHECK_0); \
3517 3517 ret = (Return) JNIHandles::make_local(env, obj); \
3518 3518 return ret;\
3519 3519 JNI_END
3520 3520
3521 3521 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean)
3522 3522 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte)
3523 3523 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short)
3524 3524 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char)
3525 3525 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int)
3526 3526 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long)
3527 3527 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float)
3528 3528 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double)
3529 3529
3530 3530 #else /* USDT2 */
3531 3531
3532 3532 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \
3533 3533 ,EntryProbe,ReturnProbe) \
3534 3534 \
3535 3535 DT_RETURN_MARK_DECL(New##Result##Array, Return \
3536 3536 , ReturnProbe); \
3537 3537 \
3538 3538 JNI_ENTRY(Return, \
3539 3539 jni_New##Result##Array(JNIEnv *env, jsize len)) \
3540 3540 JNIWrapper("New" XSTR(Result) "Array"); \
3541 3541 EntryProbe; \
3542 3542 Return ret = NULL;\
3543 3543 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3544 3544 \
3545 3545 oop obj= oopFactory::Allocator(len, CHECK_0); \
3546 3546 ret = (Return) JNIHandles::make_local(env, obj); \
3547 3547 return ret;\
3548 3548 JNI_END
3549 3549
3550 3550 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean,
3551 3551 HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),
3552 3552 HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))
3553 3553 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte,
3554 3554 HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),
3555 3555 HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))
3556 3556 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short,
3557 3557 HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),
3558 3558 HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))
3559 3559 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char,
3560 3560 HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),
3561 3561 HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))
3562 3562 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int,
3563 3563 HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),
3564 3564 HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))
3565 3565 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long,
3566 3566 HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),
3567 3567 HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))
3568 3568 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float,
3569 3569 HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),
3570 3570 HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))
3571 3571 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double,
3572 3572 HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),
3573 3573 HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))
3574 3574 #endif /* USDT2 */
3575 3575
3576 3576 // Return an address which will fault if the caller writes to it.
3577 3577
3578 3578 static char* get_bad_address() {
3579 3579 static char* bad_address = NULL;
3580 3580 if (bad_address == NULL) {
3581 3581 size_t size = os::vm_allocation_granularity();
3582 3582 bad_address = os::reserve_memory(size);
3583 3583 if (bad_address != NULL) {
3584 3584 os::protect_memory(bad_address, size, os::MEM_PROT_READ,
3585 3585 /*is_committed*/false);
3586 3586 MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);
3587 3587 }
3588 3588 }
3589 3589 return bad_address;
3590 3590 }
3591 3591
3592 3592
3593 3593 #ifndef USDT2
3594 3594 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \
3595 3595 \
3596 3596 JNI_QUICK_ENTRY(ElementType*, \
3597 3597 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3598 3598 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3599 3599 DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\
3600 3600 /* allocate an chunk of memory in c land */ \
3601 3601 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3602 3602 ElementType* result; \
3603 3603 int len = a->length(); \
3604 3604 if (len == 0) { \
3605 3605 /* Empty array: legal but useless, can't return NULL. \
3606 3606 * Return a pointer to something useless. \
3607 3607 * Avoid asserts in typeArrayOop. */ \
3608 3608 result = (ElementType*)get_bad_address(); \
3609 3609 } else { \
3610 3610 /* JNI Specification states return NULL on OOM */ \
3611 3611 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3612 3612 if (result != NULL) { \
3613 3613 /* copy the array to the c chunk */ \
3614 3614 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \
3615 3615 if (isCopy) { \
3616 3616 *isCopy = JNI_TRUE; \
3617 3617 } \
3618 3618 } \
3619 3619 } \
3620 3620 DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\
3621 3621 return result; \
3622 3622 JNI_END
3623 3623
3624 3624 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3625 3625 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte)
3626 3626 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short)
3627 3627 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char)
3628 3628 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int)
3629 3629 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long)
3630 3630 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float)
3631 3631 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double)
3632 3632
3633 3633 #else /* USDT2 */
3634 3634
3635 3635 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \
3636 3636 , EntryProbe, ReturnProbe) \
3637 3637 \
3638 3638 JNI_QUICK_ENTRY(ElementType*, \
3639 3639 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3640 3640 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3641 3641 EntryProbe; \
3642 3642 /* allocate an chunk of memory in c land */ \
3643 3643 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3644 3644 ElementType* result; \
3645 3645 int len = a->length(); \
3646 3646 if (len == 0) { \
3647 3647 /* Empty array: legal but useless, can't return NULL. \
3648 3648 * Return a pointer to something useless. \
3649 3649 * Avoid asserts in typeArrayOop. */ \
3650 3650 result = (ElementType*)get_bad_address(); \
3651 3651 } else { \
3652 3652 /* JNI Specification states return NULL on OOM */ \
3653 3653 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3654 3654 if (result != NULL) { \
3655 3655 /* copy the array to the c chunk */ \
3656 3656 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \
3657 3657 if (isCopy) { \
3658 3658 *isCopy = JNI_TRUE; \
3659 3659 } \
3660 3660 } \
3661 3661 } \
3662 3662 ReturnProbe; \
3663 3663 return result; \
3664 3664 JNI_END
3665 3665
3666 3666 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3667 3667 , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3668 3668 HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))
3669 3669 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte
3670 3670 , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3671 3671 HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))
3672 3672 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short
3673 3673 , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3674 3674 HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))
3675 3675 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char
3676 3676 , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3677 3677 HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))
3678 3678 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int
3679 3679 , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3680 3680 HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))
3681 3681 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long
3682 3682 , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3683 3683 HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))
3684 3684 // Float and double probes don't return value because dtrace doesn't currently support it
3685 3685 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float
3686 3686 , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3687 3687 HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))
3688 3688 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double
3689 3689 , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3690 3690 HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))
3691 3691 #endif /* USDT2 */
3692 3692
3693 3693 #ifndef USDT2
3694 3694 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \
3695 3695 \
3696 3696 JNI_QUICK_ENTRY(void, \
3697 3697 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3698 3698 ElementType *buf, jint mode)) \
3699 3699 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3700 3700 DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\
3701 3701 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3702 3702 int len = a->length(); \
3703 3703 if (len != 0) { /* Empty array: nothing to free or copy. */ \
3704 3704 if ((mode == 0) || (mode == JNI_COMMIT)) { \
3705 3705 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3706 3706 } \
3707 3707 if ((mode == 0) || (mode == JNI_ABORT)) { \
3708 3708 FreeHeap(buf); \
3709 3709 } \
3710 3710 } \
3711 3711 DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\
3712 3712 JNI_END
3713 3713
3714 3714 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3715 3715 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte)
3716 3716 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short)
3717 3717 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char)
3718 3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int)
3719 3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long)
3720 3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float)
3721 3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double)
3722 3722
3723 3723 #else /* USDT2 */
3724 3724
3725 3725 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \
3726 3726 , EntryProbe, ReturnProbe);\
3727 3727 \
3728 3728 JNI_QUICK_ENTRY(void, \
3729 3729 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3730 3730 ElementType *buf, jint mode)) \
3731 3731 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3732 3732 EntryProbe; \
3733 3733 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3734 3734 int len = a->length(); \
3735 3735 if (len != 0) { /* Empty array: nothing to free or copy. */ \
3736 3736 if ((mode == 0) || (mode == JNI_COMMIT)) { \
3737 3737 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3738 3738 } \
3739 3739 if ((mode == 0) || (mode == JNI_ABORT)) { \
3740 3740 FreeHeap(buf); \
3741 3741 } \
3742 3742 } \
3743 3743 ReturnProbe; \
3744 3744 JNI_END
3745 3745
3746 3746 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3747 3747 , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3748 3748 HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())
3749 3749 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte
3750 3750 , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),
3751 3751 HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())
3752 3752 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short
3753 3753 , HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3754 3754 HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())
3755 3755 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char
3756 3756 , HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3757 3757 HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())
3758 3758 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int
3759 3759 , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),
3760 3760 HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())
3761 3761 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long
3762 3762 , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3763 3763 HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())
3764 3764 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float
3765 3765 , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),
3766 3766 HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())
3767 3767 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double
3768 3768 , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),
3769 3769 HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())
3770 3770 #endif /* USDT2 */
3771 3771
3772 3772 #ifndef USDT2
3773 3773 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3774 3774 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\
3775 3775 \
3776 3776 JNI_ENTRY(void, \
3777 3777 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3778 3778 jsize len, ElementType *buf)) \
3779 3779 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3780 3780 DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\
3781 3781 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3782 3782 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3783 3783 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \
3784 3784 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3785 3785 } else { \
3786 3786 if (len > 0) { \
3787 3787 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3788 3788 memcpy((u_char*) buf, \
3789 3789 (u_char*) src->Tag##_at_addr(start), \
3790 3790 len << sc); \
3791 3791 } \
3792 3792 } \
3793 3793 JNI_END
3794 3794
3795 3795 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)
3796 3796 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte)
3797 3797 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short)
3798 3798 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char)
3799 3799 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int)
3800 3800 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long)
3801 3801 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float)
3802 3802 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double)
3803 3803
3804 3804 #else /* USDT2 */
3805 3805
3806 3806 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3807 3807 , EntryProbe, ReturnProbe); \
3808 3808 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \
3809 3809 , ReturnProbe); \
3810 3810 \
3811 3811 JNI_ENTRY(void, \
3812 3812 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3813 3813 jsize len, ElementType *buf)) \
3814 3814 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3815 3815 EntryProbe; \
3816 3816 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3817 3817 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3818 3818 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \
3819 3819 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3820 3820 } else { \
3821 3821 if (len > 0) { \
3822 3822 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3823 3823 memcpy((u_char*) buf, \
3824 3824 (u_char*) src->Tag##_at_addr(start), \
3825 3825 len << sc); \
3826 3826 } \
3827 3827 } \
3828 3828 JNI_END
3829 3829
3830 3830 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool
3831 3831 , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3832 3832 HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());
3833 3833 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte
3834 3834 , HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3835 3835 HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());
3836 3836 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short
3837 3837 , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3838 3838 HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());
3839 3839 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char
3840 3840 , HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),
3841 3841 HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());
3842 3842 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int
3843 3843 , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),
3844 3844 HOTSPOT_JNI_GETINTARRAYREGION_RETURN());
3845 3845 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long
3846 3846 , HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3847 3847 HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());
3848 3848 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float
3849 3849 , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3850 3850 HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());
3851 3851 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double
3852 3852 , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3853 3853 HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());
3854 3854 #endif /* USDT2 */
3855 3855
3856 3856 #ifndef USDT2
3857 3857 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3858 3858 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\
3859 3859 \
3860 3860 JNI_ENTRY(void, \
3861 3861 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3862 3862 jsize len, const ElementType *buf)) \
3863 3863 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3864 3864 DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\
3865 3865 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3866 3866 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3867 3867 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \
3868 3868 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3869 3869 } else { \
3870 3870 if (len > 0) { \
3871 3871 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3872 3872 memcpy((u_char*) dst->Tag##_at_addr(start), \
3873 3873 (u_char*) buf, \
3874 3874 len << sc); \
3875 3875 } \
3876 3876 } \
3877 3877 JNI_END
3878 3878
3879 3879 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)
3880 3880 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte)
3881 3881 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short)
3882 3882 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char)
3883 3883 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int)
3884 3884 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long)
3885 3885 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float)
3886 3886 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double)
3887 3887
3888 3888 #else /* USDT2 */
3889 3889
3890 3890 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3891 3891 , EntryProbe, ReturnProbe); \
3892 3892 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \
3893 3893 ,ReturnProbe); \
3894 3894 \
3895 3895 JNI_ENTRY(void, \
3896 3896 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3897 3897 jsize len, const ElementType *buf)) \
3898 3898 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3899 3899 EntryProbe; \
3900 3900 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3901 3901 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3902 3902 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \
3903 3903 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3904 3904 } else { \
3905 3905 if (len > 0) { \
3906 3906 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3907 3907 memcpy((u_char*) dst->Tag##_at_addr(start), \
3908 3908 (u_char*) buf, \
3909 3909 len << sc); \
3910 3910 } \
3911 3911 } \
3912 3912 JNI_END
3913 3913
3914 3914 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool
3915 3915 , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),
3916 3916 HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())
3917 3917 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte
3918 3918 , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3919 3919 HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())
3920 3920 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short
3921 3921 , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3922 3922 HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())
3923 3923 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char
3924 3924 , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3925 3925 HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())
3926 3926 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int
3927 3927 , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),
3928 3928 HOTSPOT_JNI_SETINTARRAYREGION_RETURN())
3929 3929 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long
3930 3930 , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3931 3931 HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())
3932 3932 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float
3933 3933 , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3934 3934 HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())
3935 3935 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double
3936 3936 , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3937 3937 HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())
3938 3938 #endif /* USDT2 */
3939 3939
3940 3940
3941 3941 //
3942 3942 // Interception of natives
3943 3943 //
3944 3944
3945 3945 // The RegisterNatives call being attempted tried to register with a method that
3946 3946 // is not native. Ask JVM TI what prefixes have been specified. Then check
3947 3947 // to see if the native method is now wrapped with the prefixes. See the
3948 3948 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.
3949 3949 static Method* find_prefixed_native(KlassHandle k,
3950 3950 Symbol* name, Symbol* signature, TRAPS) {
3951 3951 #if INCLUDE_JVMTI
3952 3952 ResourceMark rm(THREAD);
3953 3953 Method* method;
3954 3954 int name_len = name->utf8_length();
3955 3955 char* name_str = name->as_utf8();
3956 3956 int prefix_count;
3957 3957 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);
3958 3958 for (int i = 0; i < prefix_count; i++) {
3959 3959 char* prefix = prefixes[i];
3960 3960 int prefix_len = (int)strlen(prefix);
3961 3961
3962 3962 // try adding this prefix to the method name and see if it matches another method name
3963 3963 int trial_len = name_len + prefix_len;
3964 3964 char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);
3965 3965 strcpy(trial_name_str, prefix);
3966 3966 strcat(trial_name_str, name_str);
3967 3967 TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);
3968 3968 if (trial_name == NULL) {
3969 3969 continue; // no such symbol, so this prefix wasn't used, try the next prefix
3970 3970 }
3971 3971 method = k()->lookup_method(trial_name, signature);
3972 3972 if (method == NULL) {
3973 3973 continue; // signature doesn't match, try the next prefix
3974 3974 }
3975 3975 if (method->is_native()) {
3976 3976 method->set_is_prefixed_native();
3977 3977 return method; // wahoo, we found a prefixed version of the method, return it
3978 3978 }
3979 3979 // found as non-native, so prefix is good, add it, probably just need more prefixes
3980 3980 name_len = trial_len;
3981 3981 name_str = trial_name_str;
3982 3982 }
3983 3983 #endif // INCLUDE_JVMTI
3984 3984 return NULL; // not found
3985 3985 }
3986 3986
3987 3987 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {
3988 3988 Method* method = k()->lookup_method(name, signature);
3989 3989 if (method == NULL) {
3990 3990 ResourceMark rm;
3991 3991 stringStream st;
3992 3992 st.print("Method %s name or signature does not match",
3993 3993 Method::name_and_sig_as_C_string(k(), name, signature));
3994 3994 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
3995 3995 }
3996 3996 if (!method->is_native()) {
3997 3997 // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)
3998 3998 method = find_prefixed_native(k, name, signature, THREAD);
3999 3999 if (method == NULL) {
4000 4000 ResourceMark rm;
4001 4001 stringStream st;
4002 4002 st.print("Method %s is not declared as native",
4003 4003 Method::name_and_sig_as_C_string(k(), name, signature));
4004 4004 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4005 4005 }
4006 4006 }
4007 4007
4008 4008 if (entry != NULL) {
4009 4009 method->set_native_function(entry,
4010 4010 Method::native_bind_event_is_interesting);
4011 4011 } else {
4012 4012 method->clear_native_function();
4013 4013 }
4014 4014 if (PrintJNIResolving) {
4015 4015 ResourceMark rm(THREAD);
4016 4016 tty->print_cr("[Registering JNI native method %s.%s]",
4017 4017 method->method_holder()->external_name(),
4018 4018 method->name()->as_C_string());
4019 4019 }
4020 4020 return true;
4021 4021 }
4022 4022
4023 4023 #ifndef USDT2
4024 4024 DT_RETURN_MARK_DECL(RegisterNatives, jint);
4025 4025 #else /* USDT2 */
4026 4026 DT_RETURN_MARK_DECL(RegisterNatives, jint
4027 4027 , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));
4028 4028 #endif /* USDT2 */
4029 4029
4030 4030 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,
4031 4031 const JNINativeMethod *methods,
4032 4032 jint nMethods))
4033 4033 JNIWrapper("RegisterNatives");
4034 4034 #ifndef USDT2
4035 4035 DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);
4036 4036 #else /* USDT2 */
4037 4037 HOTSPOT_JNI_REGISTERNATIVES_ENTRY(
4038 4038 env, clazz, (void *) methods, nMethods);
4039 4039 #endif /* USDT2 */
4040 4040 jint ret = 0;
4041 4041 DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);
4042 4042
4043 4043 KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
4044 4044
4045 4045 for (int index = 0; index < nMethods; index++) {
4046 4046 const char* meth_name = methods[index].name;
4047 4047 const char* meth_sig = methods[index].signature;
4048 4048 int meth_name_len = (int)strlen(meth_name);
4049 4049
4050 4050 // The class should have been loaded (we have an instance of the class
4051 4051 // passed in) so the method and signature should already be in the symbol
4052 4052 // table. If they're not there, the method doesn't exist.
4053 4053 TempNewSymbol name = SymbolTable::probe(meth_name, meth_name_len);
4054 4054 TempNewSymbol signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));
4055 4055
4056 4056 if (name == NULL || signature == NULL) {
4057 4057 ResourceMark rm;
4058 4058 stringStream st;
4059 4059 st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);
4060 4060 // Must return negative value on failure
4061 4061 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);
4062 4062 }
4063 4063
4064 4064 bool res = register_native(h_k, name, signature,
4065 4065 (address) methods[index].fnPtr, THREAD);
4066 4066 if (!res) {
4067 4067 ret = -1;
4068 4068 break;
4069 4069 }
4070 4070 }
4071 4071 return ret;
4072 4072 JNI_END
4073 4073
4074 4074
4075 4075 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))
4076 4076 JNIWrapper("UnregisterNatives");
4077 4077 #ifndef USDT2
4078 4078 DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);
4079 4079 #else /* USDT2 */
4080 4080 HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(
4081 4081 env, clazz);
4082 4082 #endif /* USDT2 */
4083 4083 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));
4084 4084 //%note jni_2
4085 4085 if (k->oop_is_instance()) {
4086 4086 for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {
4087 4087 Method* m = InstanceKlass::cast(k)->methods()->at(index);
4088 4088 if (m->is_native()) {
4089 4089 m->clear_native_function();
4090 4090 m->set_signature_handler(NULL);
4091 4091 }
4092 4092 }
4093 4093 }
4094 4094 #ifndef USDT2
4095 4095 DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);
4096 4096 #else /* USDT2 */
4097 4097 HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(
4098 4098 0);
4099 4099 #endif /* USDT2 */
4100 4100 return 0;
4101 4101 JNI_END
4102 4102
4103 4103 //
4104 4104 // Monitor functions
4105 4105 //
4106 4106
4107 4107 #ifndef USDT2
4108 4108 DT_RETURN_MARK_DECL(MonitorEnter, jint);
4109 4109 #else /* USDT2 */
4110 4110 DT_RETURN_MARK_DECL(MonitorEnter, jint
4111 4111 , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));
4112 4112 #endif /* USDT2 */
4113 4113
4114 4114 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))
4115 4115 #ifndef USDT2
4116 4116 DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);
4117 4117 #else /* USDT2 */
4118 4118 HOTSPOT_JNI_MONITORENTER_ENTRY(
4119 4119 env, jobj);
4120 4120 #endif /* USDT2 */
4121 4121 jint ret = JNI_ERR;
4122 4122 DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);
4123 4123
4124 4124 // If the object is null, we can't do anything with it
4125 4125 if (jobj == NULL) {
4126 4126 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4127 4127 }
4128 4128
4129 4129 Handle obj(thread, JNIHandles::resolve_non_null(jobj));
4130 4130 ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));
4131 4131 ret = JNI_OK;
4132 4132 return ret;
4133 4133 JNI_END
4134 4134
4135 4135 #ifndef USDT2
4136 4136 DT_RETURN_MARK_DECL(MonitorExit, jint);
4137 4137 #else /* USDT2 */
4138 4138 DT_RETURN_MARK_DECL(MonitorExit, jint
4139 4139 , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));
4140 4140 #endif /* USDT2 */
4141 4141
4142 4142 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))
4143 4143 #ifndef USDT2
4144 4144 DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);
4145 4145 #else /* USDT2 */
4146 4146 HOTSPOT_JNI_MONITOREXIT_ENTRY(
4147 4147 env, jobj);
4148 4148 #endif /* USDT2 */
4149 4149 jint ret = JNI_ERR;
4150 4150 DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);
4151 4151
4152 4152 // Don't do anything with a null object
4153 4153 if (jobj == NULL) {
4154 4154 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4155 4155 }
4156 4156
4157 4157 Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));
4158 4158 ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));
4159 4159
4160 4160 ret = JNI_OK;
4161 4161 return ret;
4162 4162 JNI_END
4163 4163
4164 4164 //
4165 4165 // Extensions
4166 4166 //
4167 4167
4168 4168 #ifndef USDT2
4169 4169 DT_VOID_RETURN_MARK_DECL(GetStringRegion);
4170 4170 #else /* USDT2 */
4171 4171 DT_VOID_RETURN_MARK_DECL(GetStringRegion
4172 4172 , HOTSPOT_JNI_GETSTRINGREGION_RETURN());
4173 4173 #endif /* USDT2 */
4174 4174
4175 4175 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))
4176 4176 JNIWrapper("GetStringRegion");
4177 4177 #ifndef USDT2
4178 4178 DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);
4179 4179 #else /* USDT2 */
4180 4180 HOTSPOT_JNI_GETSTRINGREGION_ENTRY(
4181 4181 env, string, start, len, buf);
4182 4182 #endif /* USDT2 */
4183 4183 DT_VOID_RETURN_MARK(GetStringRegion);
4184 4184 oop s = JNIHandles::resolve_non_null(string);
4185 4185 int s_len = java_lang_String::length(s);
4186 4186 if (start < 0 || len < 0 || start + len > s_len) {
4187 4187 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4188 4188 } else {
4189 4189 if (len > 0) {
4190 4190 int s_offset = java_lang_String::offset(s);
4191 4191 typeArrayOop s_value = java_lang_String::value(s);
4192 4192 memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);
4193 4193 }
4194 4194 }
4195 4195 JNI_END
4196 4196
4197 4197 #ifndef USDT2
4198 4198 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);
4199 4199 #else /* USDT2 */
4200 4200 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion
4201 4201 , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());
4202 4202 #endif /* USDT2 */
4203 4203
4204 4204 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))
4205 4205 JNIWrapper("GetStringUTFRegion");
4206 4206 #ifndef USDT2
4207 4207 DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);
4208 4208 #else /* USDT2 */
4209 4209 HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(
4210 4210 env, string, start, len, buf);
4211 4211 #endif /* USDT2 */
4212 4212 DT_VOID_RETURN_MARK(GetStringUTFRegion);
4213 4213 oop s = JNIHandles::resolve_non_null(string);
4214 4214 int s_len = java_lang_String::length(s);
4215 4215 if (start < 0 || len < 0 || start + len > s_len) {
4216 4216 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4217 4217 } else {
4218 4218 //%note jni_7
4219 4219 if (len > 0) {
4220 4220 ResourceMark rm(THREAD);
4221 4221 char *utf_region = java_lang_String::as_utf8_string(s, start, len);
4222 4222 int utf_len = (int)strlen(utf_region);
4223 4223 memcpy(buf, utf_region, utf_len);
4224 4224 buf[utf_len] = 0;
4225 4225 } else {
4226 4226 // JDK null-terminates the buffer even in len is zero
4227 4227 if (buf != NULL) {
4228 4228 buf[0] = 0;
4229 4229 }
4230 4230 }
4231 4231 }
4232 4232 JNI_END
4233 4233
4234 4234
4235 4235 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))
4236 4236 JNIWrapper("GetPrimitiveArrayCritical");
4237 4237 #ifndef USDT2
4238 4238 DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);
4239 4239 #else /* USDT2 */
4240 4240 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(
4241 4241 env, array, (uintptr_t *) isCopy);
4242 4242 #endif /* USDT2 */
4243 4243 GC_locker::lock_critical(thread);
4244 4244 if (isCopy != NULL) {
4245 4245 *isCopy = JNI_FALSE;
4246 4246 }
4247 4247 oop a = JNIHandles::resolve_non_null(array);
4248 4248 assert(a->is_array(), "just checking");
4249 4249 BasicType type;
4250 4250 if (a->is_objArray()) {
4251 4251 type = T_OBJECT;
4252 4252 } else {
4253 4253 type = TypeArrayKlass::cast(a->klass())->element_type();
4254 4254 }
4255 4255 void* ret = arrayOop(a)->base(type);
4256 4256 #ifndef USDT2
4257 4257 DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);
4258 4258 #else /* USDT2 */
4259 4259 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(
4260 4260 ret);
4261 4261 #endif /* USDT2 */
4262 4262 return ret;
4263 4263 JNI_END
4264 4264
4265 4265
4266 4266 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))
4267 4267 JNIWrapper("ReleasePrimitiveArrayCritical");
4268 4268 #ifndef USDT2
4269 4269 DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);
4270 4270 #else /* USDT2 */
4271 4271 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(
4272 4272 env, array, carray, mode);
4273 4273 #endif /* USDT2 */
4274 4274 // The array, carray and mode arguments are ignored
4275 4275 GC_locker::unlock_critical(thread);
4276 4276 #ifndef USDT2
4277 4277 DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);
4278 4278 #else /* USDT2 */
4279 4279 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(
4280 4280 );
4281 4281 #endif /* USDT2 */
4282 4282 JNI_END
4283 4283
4284 4284
4285 4285 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))
4286 4286 JNIWrapper("GetStringCritical");
4287 4287 #ifndef USDT2
4288 4288 DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);
4289 4289 #else /* USDT2 */
4290 4290 HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(
4291 4291 env, string, (uintptr_t *) isCopy);
4292 4292 #endif /* USDT2 */
4293 4293 GC_locker::lock_critical(thread);
4294 4294 if (isCopy != NULL) {
4295 4295 *isCopy = JNI_FALSE;
4296 4296 }
4297 4297 oop s = JNIHandles::resolve_non_null(string);
4298 4298 int s_len = java_lang_String::length(s);
4299 4299 typeArrayOop s_value = java_lang_String::value(s);
4300 4300 int s_offset = java_lang_String::offset(s);
4301 4301 const jchar* ret;
4302 4302 if (s_len > 0) {
4303 4303 ret = s_value->char_at_addr(s_offset);
4304 4304 } else {
4305 4305 ret = (jchar*) s_value->base(T_CHAR);
4306 4306 }
4307 4307 #ifndef USDT2
4308 4308 DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);
4309 4309 #else /* USDT2 */
4310 4310 HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(
4311 4311 (uint16_t *) ret);
4312 4312 #endif /* USDT2 */
4313 4313 return ret;
4314 4314 JNI_END
4315 4315
4316 4316
4317 4317 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))
4318 4318 JNIWrapper("ReleaseStringCritical");
4319 4319 #ifndef USDT2
4320 4320 DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);
4321 4321 #else /* USDT2 */
4322 4322 HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(
4323 4323 env, str, (uint16_t *) chars);
4324 4324 #endif /* USDT2 */
4325 4325 // The str and chars arguments are ignored
4326 4326 GC_locker::unlock_critical(thread);
4327 4327 #ifndef USDT2
4328 4328 DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);
4329 4329 #else /* USDT2 */
4330 4330 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(
4331 4331 );
4332 4332 #endif /* USDT2 */
4333 4333 JNI_END
4334 4334
4335 4335
4336 4336 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))
4337 4337 JNIWrapper("jni_NewWeakGlobalRef");
4338 4338 #ifndef USDT2
4339 4339 DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);
4340 4340 #else /* USDT2 */
4341 4341 HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(
4342 4342 env, ref);
4343 4343 #endif /* USDT2 */
4344 4344 Handle ref_handle(thread, JNIHandles::resolve(ref));
4345 4345 jweak ret = JNIHandles::make_weak_global(ref_handle);
4346 4346 #ifndef USDT2
4347 4347 DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);
4348 4348 #else /* USDT2 */
4349 4349 HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(
4350 4350 ret);
4351 4351 #endif /* USDT2 */
4352 4352 return ret;
4353 4353 JNI_END
4354 4354
4355 4355 // Must be JNI_ENTRY (with HandleMark)
4356 4356 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))
4357 4357 JNIWrapper("jni_DeleteWeakGlobalRef");
4358 4358 #ifndef USDT2
4359 4359 DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);
4360 4360 #else /* USDT2 */
4361 4361 HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(
4362 4362 env, ref);
4363 4363 #endif /* USDT2 */
4364 4364 JNIHandles::destroy_weak_global(ref);
4365 4365 #ifndef USDT2
4366 4366 DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);
4367 4367 #else /* USDT2 */
4368 4368 HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(
4369 4369 );
4370 4370 #endif /* USDT2 */
4371 4371 JNI_END
4372 4372
4373 4373
4374 4374 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))
4375 4375 JNIWrapper("jni_ExceptionCheck");
4376 4376 #ifndef USDT2
4377 4377 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);
4378 4378 #else /* USDT2 */
4379 4379 HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(
4380 4380 env);
4381 4381 #endif /* USDT2 */
4382 4382 jni_check_async_exceptions(thread);
4383 4383 jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;
4384 4384 #ifndef USDT2
4385 4385 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);
4386 4386 #else /* USDT2 */
4387 4387 HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(
4388 4388 ret);
4389 4389 #endif /* USDT2 */
4390 4390 return ret;
4391 4391 JNI_END
4392 4392
4393 4393
4394 4394 // Initialization state for three routines below relating to
4395 4395 // java.nio.DirectBuffers
4396 4396 static jint directBufferSupportInitializeStarted = 0;
4397 4397 static volatile jint directBufferSupportInitializeEnded = 0;
4398 4398 static volatile jint directBufferSupportInitializeFailed = 0;
4399 4399 static jclass bufferClass = NULL;
4400 4400 static jclass directBufferClass = NULL;
4401 4401 static jclass directByteBufferClass = NULL;
4402 4402 static jmethodID directByteBufferConstructor = NULL;
4403 4403 static jfieldID directBufferAddressField = NULL;
4404 4404 static jfieldID bufferCapacityField = NULL;
4405 4405
4406 4406 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {
4407 4407 Handle loader; // null (bootstrap) loader
4408 4408 Handle protection_domain; // null protection domain
4409 4409
4410 4410 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
4411 4411 jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
4412 4412
4413 4413 if (TraceClassResolution && result != NULL) {
4414 4414 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
4415 4415 }
4416 4416 return result;
4417 4417 }
4418 4418
4419 4419 // These lookups are done with the NULL (bootstrap) ClassLoader to
4420 4420 // circumvent any security checks that would be done by jni_FindClass.
4421 4421 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))
4422 4422 {
4423 4423 if ((bufferClass = lookupOne(env, "java/nio/Buffer", thread)) == NULL) { return false; }
4424 4424 if ((directBufferClass = lookupOne(env, "sun/nio/ch/DirectBuffer", thread)) == NULL) { return false; }
4425 4425 if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }
4426 4426 return true;
4427 4427 }
4428 4428 JNI_END
4429 4429
4430 4430
4431 4431 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {
4432 4432 if (directBufferSupportInitializeFailed) {
4433 4433 return false;
4434 4434 }
4435 4435
4436 4436 if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {
4437 4437 if (!lookupDirectBufferClasses(env)) {
4438 4438 directBufferSupportInitializeFailed = 1;
4439 4439 return false;
4440 4440 }
4441 4441
4442 4442 // Make global references for these
4443 4443 bufferClass = (jclass) env->NewGlobalRef(bufferClass);
4444 4444 directBufferClass = (jclass) env->NewGlobalRef(directBufferClass);
4445 4445 directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);
4446 4446
4447 4447 // Get needed field and method IDs
4448 4448 directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");
4449 4449 if (env->ExceptionCheck()) {
4450 4450 env->ExceptionClear();
4451 4451 directBufferSupportInitializeFailed = 1;
4452 4452 return false;
4453 4453 }
4454 4454 directBufferAddressField = env->GetFieldID(bufferClass, "address", "J");
4455 4455 if (env->ExceptionCheck()) {
4456 4456 env->ExceptionClear();
4457 4457 directBufferSupportInitializeFailed = 1;
4458 4458 return false;
4459 4459 }
4460 4460 bufferCapacityField = env->GetFieldID(bufferClass, "capacity", "I");
4461 4461 if (env->ExceptionCheck()) {
4462 4462 env->ExceptionClear();
4463 4463 directBufferSupportInitializeFailed = 1;
4464 4464 return false;
4465 4465 }
4466 4466
4467 4467 if ((directByteBufferConstructor == NULL) ||
4468 4468 (directBufferAddressField == NULL) ||
4469 4469 (bufferCapacityField == NULL)) {
4470 4470 directBufferSupportInitializeFailed = 1;
4471 4471 return false;
4472 4472 }
4473 4473
4474 4474 directBufferSupportInitializeEnded = 1;
4475 4475 } else {
4476 4476 while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {
4477 4477 // Set state as yield_all can call os:sleep. On Solaris, yield_all calls
4478 4478 // os::sleep which requires the VM state transition. On other platforms, it
4479 4479 // is not necessary. The following call to change the VM state is purposely
4480 4480 // put inside the loop to avoid potential deadlock when multiple threads
4481 4481 // try to call this method. See 6791815 for more details.
4482 4482 ThreadInVMfromNative tivn(thread);
4483 4483 os::yield_all();
4484 4484 }
4485 4485 }
4486 4486
4487 4487 return !directBufferSupportInitializeFailed;
4488 4488 }
4489 4489
4490 4490 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)
4491 4491 {
4492 4492 // thread_from_jni_environment() will block if VM is gone.
4493 4493 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4494 4494
4495 4495 JNIWrapper("jni_NewDirectByteBuffer");
4496 4496 #ifndef USDT2
4497 4497 DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);
4498 4498 #else /* USDT2 */
4499 4499 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(
4500 4500 env, address, capacity);
4501 4501 #endif /* USDT2 */
4502 4502
4503 4503 if (!directBufferSupportInitializeEnded) {
4504 4504 if (!initializeDirectBufferSupport(env, thread)) {
4505 4505 #ifndef USDT2
4506 4506 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);
4507 4507 #else /* USDT2 */
4508 4508 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4509 4509 NULL);
4510 4510 #endif /* USDT2 */
4511 4511 return NULL;
4512 4512 }
4513 4513 }
4514 4514
4515 4515 // Being paranoid about accidental sign extension on address
4516 4516 jlong addr = (jlong) ((uintptr_t) address);
4517 4517 // NOTE that package-private DirectByteBuffer constructor currently
4518 4518 // takes int capacity
4519 4519 jint cap = (jint) capacity;
4520 4520 jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);
4521 4521 #ifndef USDT2
4522 4522 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);
4523 4523 #else /* USDT2 */
4524 4524 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4525 4525 ret);
4526 4526 #endif /* USDT2 */
4527 4527 return ret;
4528 4528 }
4529 4529
4530 4530 #ifndef USDT2
4531 4531 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);
4532 4532 #else /* USDT2 */
4533 4533 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*
4534 4534 , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));
4535 4535 #endif /* USDT2 */
4536 4536
4537 4537 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)
4538 4538 {
4539 4539 // thread_from_jni_environment() will block if VM is gone.
4540 4540 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4541 4541
4542 4542 JNIWrapper("jni_GetDirectBufferAddress");
4543 4543 #ifndef USDT2
4544 4544 DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);
4545 4545 #else /* USDT2 */
4546 4546 HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(
4547 4547 env, buf);
4548 4548 #endif /* USDT2 */
4549 4549 void* ret = NULL;
4550 4550 DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);
4551 4551
4552 4552 if (!directBufferSupportInitializeEnded) {
4553 4553 if (!initializeDirectBufferSupport(env, thread)) {
4554 4554 return 0;
4555 4555 }
4556 4556 }
4557 4557
4558 4558 if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {
4559 4559 return 0;
4560 4560 }
4561 4561
4562 4562 ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);
4563 4563 return ret;
4564 4564 }
4565 4565
4566 4566 #ifndef USDT2
4567 4567 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);
4568 4568 #else /* USDT2 */
4569 4569 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong
4570 4570 , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));
4571 4571 #endif /* USDT2 */
4572 4572
4573 4573 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)
4574 4574 {
4575 4575 // thread_from_jni_environment() will block if VM is gone.
4576 4576 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4577 4577
4578 4578 JNIWrapper("jni_GetDirectBufferCapacity");
4579 4579 #ifndef USDT2
4580 4580 DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);
4581 4581 #else /* USDT2 */
4582 4582 HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(
4583 4583 env, buf);
4584 4584 #endif /* USDT2 */
4585 4585 jlong ret = -1;
4586 4586 DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);
4587 4587
4588 4588 if (!directBufferSupportInitializeEnded) {
4589 4589 if (!initializeDirectBufferSupport(env, thread)) {
4590 4590 ret = 0;
4591 4591 return ret;
4592 4592 }
4593 4593 }
4594 4594
4595 4595 if (buf == NULL) {
4596 4596 return -1;
4597 4597 }
4598 4598
4599 4599 if (!env->IsInstanceOf(buf, directBufferClass)) {
4600 4600 return -1;
4601 4601 }
4602 4602
4603 4603 // NOTE that capacity is currently an int in the implementation
4604 4604 ret = env->GetIntField(buf, bufferCapacityField);
4605 4605 return ret;
4606 4606 }
4607 4607
4608 4608
4609 4609 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))
4610 4610 JNIWrapper("GetVersion");
4611 4611 #ifndef USDT2
4612 4612 DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);
4613 4613 #else /* USDT2 */
4614 4614 HOTSPOT_JNI_GETVERSION_ENTRY(
4615 4615 env);
4616 4616 #endif /* USDT2 */
4617 4617 #ifndef USDT2
4618 4618 DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);
4619 4619 #else /* USDT2 */
4620 4620 HOTSPOT_JNI_GETVERSION_RETURN(
4621 4621 CurrentVersion);
4622 4622 #endif /* USDT2 */
4623 4623 return CurrentVersion;
4624 4624 JNI_END
4625 4625
4626 4626 extern struct JavaVM_ main_vm;
4627 4627
4628 4628 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))
4629 4629 JNIWrapper("jni_GetJavaVM");
4630 4630 #ifndef USDT2
4631 4631 DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);
4632 4632 #else /* USDT2 */
4633 4633 HOTSPOT_JNI_GETJAVAVM_ENTRY(
4634 4634 env, (void **) vm);
4635 4635 #endif /* USDT2 */
4636 4636 *vm = (JavaVM *)(&main_vm);
4637 4637 #ifndef USDT2
4638 4638 DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);
4639 4639 #else /* USDT2 */
4640 4640 HOTSPOT_JNI_GETJAVAVM_RETURN(
4641 4641 JNI_OK);
4642 4642 #endif /* USDT2 */
4643 4643 return JNI_OK;
4644 4644 JNI_END
4645 4645
4646 4646 // Structure containing all jni functions
4647 4647 struct JNINativeInterface_ jni_NativeInterface = {
4648 4648 NULL,
4649 4649 NULL,
4650 4650 NULL,
4651 4651
4652 4652 NULL,
4653 4653
4654 4654 jni_GetVersion,
4655 4655
4656 4656 jni_DefineClass,
4657 4657 jni_FindClass,
4658 4658
4659 4659 jni_FromReflectedMethod,
4660 4660 jni_FromReflectedField,
4661 4661
4662 4662 jni_ToReflectedMethod,
4663 4663
4664 4664 jni_GetSuperclass,
4665 4665 jni_IsAssignableFrom,
4666 4666
4667 4667 jni_ToReflectedField,
4668 4668
4669 4669 jni_Throw,
4670 4670 jni_ThrowNew,
4671 4671 jni_ExceptionOccurred,
4672 4672 jni_ExceptionDescribe,
4673 4673 jni_ExceptionClear,
4674 4674 jni_FatalError,
4675 4675
4676 4676 jni_PushLocalFrame,
4677 4677 jni_PopLocalFrame,
4678 4678
4679 4679 jni_NewGlobalRef,
4680 4680 jni_DeleteGlobalRef,
4681 4681 jni_DeleteLocalRef,
4682 4682 jni_IsSameObject,
4683 4683
4684 4684 jni_NewLocalRef,
4685 4685 jni_EnsureLocalCapacity,
4686 4686
4687 4687 jni_AllocObject,
4688 4688 jni_NewObject,
4689 4689 jni_NewObjectV,
4690 4690 jni_NewObjectA,
4691 4691
4692 4692 jni_GetObjectClass,
4693 4693 jni_IsInstanceOf,
4694 4694
4695 4695 jni_GetMethodID,
4696 4696
4697 4697 jni_CallObjectMethod,
4698 4698 jni_CallObjectMethodV,
4699 4699 jni_CallObjectMethodA,
4700 4700 jni_CallBooleanMethod,
4701 4701 jni_CallBooleanMethodV,
4702 4702 jni_CallBooleanMethodA,
4703 4703 jni_CallByteMethod,
4704 4704 jni_CallByteMethodV,
4705 4705 jni_CallByteMethodA,
4706 4706 jni_CallCharMethod,
4707 4707 jni_CallCharMethodV,
4708 4708 jni_CallCharMethodA,
4709 4709 jni_CallShortMethod,
4710 4710 jni_CallShortMethodV,
4711 4711 jni_CallShortMethodA,
4712 4712 jni_CallIntMethod,
4713 4713 jni_CallIntMethodV,
4714 4714 jni_CallIntMethodA,
4715 4715 jni_CallLongMethod,
4716 4716 jni_CallLongMethodV,
4717 4717 jni_CallLongMethodA,
4718 4718 jni_CallFloatMethod,
4719 4719 jni_CallFloatMethodV,
4720 4720 jni_CallFloatMethodA,
4721 4721 jni_CallDoubleMethod,
4722 4722 jni_CallDoubleMethodV,
4723 4723 jni_CallDoubleMethodA,
4724 4724 jni_CallVoidMethod,
4725 4725 jni_CallVoidMethodV,
4726 4726 jni_CallVoidMethodA,
4727 4727
4728 4728 jni_CallNonvirtualObjectMethod,
4729 4729 jni_CallNonvirtualObjectMethodV,
4730 4730 jni_CallNonvirtualObjectMethodA,
4731 4731 jni_CallNonvirtualBooleanMethod,
4732 4732 jni_CallNonvirtualBooleanMethodV,
4733 4733 jni_CallNonvirtualBooleanMethodA,
4734 4734 jni_CallNonvirtualByteMethod,
4735 4735 jni_CallNonvirtualByteMethodV,
4736 4736 jni_CallNonvirtualByteMethodA,
4737 4737 jni_CallNonvirtualCharMethod,
4738 4738 jni_CallNonvirtualCharMethodV,
4739 4739 jni_CallNonvirtualCharMethodA,
4740 4740 jni_CallNonvirtualShortMethod,
4741 4741 jni_CallNonvirtualShortMethodV,
4742 4742 jni_CallNonvirtualShortMethodA,
4743 4743 jni_CallNonvirtualIntMethod,
4744 4744 jni_CallNonvirtualIntMethodV,
4745 4745 jni_CallNonvirtualIntMethodA,
4746 4746 jni_CallNonvirtualLongMethod,
4747 4747 jni_CallNonvirtualLongMethodV,
4748 4748 jni_CallNonvirtualLongMethodA,
4749 4749 jni_CallNonvirtualFloatMethod,
4750 4750 jni_CallNonvirtualFloatMethodV,
4751 4751 jni_CallNonvirtualFloatMethodA,
4752 4752 jni_CallNonvirtualDoubleMethod,
4753 4753 jni_CallNonvirtualDoubleMethodV,
4754 4754 jni_CallNonvirtualDoubleMethodA,
4755 4755 jni_CallNonvirtualVoidMethod,
4756 4756 jni_CallNonvirtualVoidMethodV,
4757 4757 jni_CallNonvirtualVoidMethodA,
4758 4758
4759 4759 jni_GetFieldID,
4760 4760
4761 4761 jni_GetObjectField,
4762 4762 jni_GetBooleanField,
4763 4763 jni_GetByteField,
4764 4764 jni_GetCharField,
4765 4765 jni_GetShortField,
4766 4766 jni_GetIntField,
4767 4767 jni_GetLongField,
4768 4768 jni_GetFloatField,
4769 4769 jni_GetDoubleField,
4770 4770
4771 4771 jni_SetObjectField,
4772 4772 jni_SetBooleanField,
4773 4773 jni_SetByteField,
4774 4774 jni_SetCharField,
4775 4775 jni_SetShortField,
4776 4776 jni_SetIntField,
4777 4777 jni_SetLongField,
4778 4778 jni_SetFloatField,
4779 4779 jni_SetDoubleField,
4780 4780
4781 4781 jni_GetStaticMethodID,
4782 4782
4783 4783 jni_CallStaticObjectMethod,
4784 4784 jni_CallStaticObjectMethodV,
4785 4785 jni_CallStaticObjectMethodA,
4786 4786 jni_CallStaticBooleanMethod,
4787 4787 jni_CallStaticBooleanMethodV,
4788 4788 jni_CallStaticBooleanMethodA,
4789 4789 jni_CallStaticByteMethod,
4790 4790 jni_CallStaticByteMethodV,
4791 4791 jni_CallStaticByteMethodA,
4792 4792 jni_CallStaticCharMethod,
4793 4793 jni_CallStaticCharMethodV,
4794 4794 jni_CallStaticCharMethodA,
4795 4795 jni_CallStaticShortMethod,
4796 4796 jni_CallStaticShortMethodV,
4797 4797 jni_CallStaticShortMethodA,
4798 4798 jni_CallStaticIntMethod,
4799 4799 jni_CallStaticIntMethodV,
4800 4800 jni_CallStaticIntMethodA,
4801 4801 jni_CallStaticLongMethod,
4802 4802 jni_CallStaticLongMethodV,
4803 4803 jni_CallStaticLongMethodA,
4804 4804 jni_CallStaticFloatMethod,
4805 4805 jni_CallStaticFloatMethodV,
4806 4806 jni_CallStaticFloatMethodA,
4807 4807 jni_CallStaticDoubleMethod,
4808 4808 jni_CallStaticDoubleMethodV,
4809 4809 jni_CallStaticDoubleMethodA,
4810 4810 jni_CallStaticVoidMethod,
4811 4811 jni_CallStaticVoidMethodV,
4812 4812 jni_CallStaticVoidMethodA,
4813 4813
4814 4814 jni_GetStaticFieldID,
4815 4815
4816 4816 jni_GetStaticObjectField,
4817 4817 jni_GetStaticBooleanField,
4818 4818 jni_GetStaticByteField,
4819 4819 jni_GetStaticCharField,
4820 4820 jni_GetStaticShortField,
4821 4821 jni_GetStaticIntField,
4822 4822 jni_GetStaticLongField,
4823 4823 jni_GetStaticFloatField,
4824 4824 jni_GetStaticDoubleField,
4825 4825
4826 4826 jni_SetStaticObjectField,
4827 4827 jni_SetStaticBooleanField,
4828 4828 jni_SetStaticByteField,
4829 4829 jni_SetStaticCharField,
4830 4830 jni_SetStaticShortField,
4831 4831 jni_SetStaticIntField,
4832 4832 jni_SetStaticLongField,
4833 4833 jni_SetStaticFloatField,
4834 4834 jni_SetStaticDoubleField,
4835 4835
4836 4836 jni_NewString,
4837 4837 jni_GetStringLength,
4838 4838 jni_GetStringChars,
4839 4839 jni_ReleaseStringChars,
4840 4840
4841 4841 jni_NewStringUTF,
4842 4842 jni_GetStringUTFLength,
4843 4843 jni_GetStringUTFChars,
4844 4844 jni_ReleaseStringUTFChars,
4845 4845
4846 4846 jni_GetArrayLength,
4847 4847
4848 4848 jni_NewObjectArray,
4849 4849 jni_GetObjectArrayElement,
4850 4850 jni_SetObjectArrayElement,
4851 4851
4852 4852 jni_NewBooleanArray,
4853 4853 jni_NewByteArray,
4854 4854 jni_NewCharArray,
4855 4855 jni_NewShortArray,
4856 4856 jni_NewIntArray,
4857 4857 jni_NewLongArray,
4858 4858 jni_NewFloatArray,
4859 4859 jni_NewDoubleArray,
4860 4860
4861 4861 jni_GetBooleanArrayElements,
4862 4862 jni_GetByteArrayElements,
4863 4863 jni_GetCharArrayElements,
4864 4864 jni_GetShortArrayElements,
4865 4865 jni_GetIntArrayElements,
4866 4866 jni_GetLongArrayElements,
4867 4867 jni_GetFloatArrayElements,
4868 4868 jni_GetDoubleArrayElements,
4869 4869
4870 4870 jni_ReleaseBooleanArrayElements,
4871 4871 jni_ReleaseByteArrayElements,
4872 4872 jni_ReleaseCharArrayElements,
4873 4873 jni_ReleaseShortArrayElements,
4874 4874 jni_ReleaseIntArrayElements,
4875 4875 jni_ReleaseLongArrayElements,
4876 4876 jni_ReleaseFloatArrayElements,
4877 4877 jni_ReleaseDoubleArrayElements,
4878 4878
4879 4879 jni_GetBooleanArrayRegion,
4880 4880 jni_GetByteArrayRegion,
4881 4881 jni_GetCharArrayRegion,
4882 4882 jni_GetShortArrayRegion,
4883 4883 jni_GetIntArrayRegion,
4884 4884 jni_GetLongArrayRegion,
4885 4885 jni_GetFloatArrayRegion,
4886 4886 jni_GetDoubleArrayRegion,
4887 4887
4888 4888 jni_SetBooleanArrayRegion,
4889 4889 jni_SetByteArrayRegion,
4890 4890 jni_SetCharArrayRegion,
4891 4891 jni_SetShortArrayRegion,
4892 4892 jni_SetIntArrayRegion,
4893 4893 jni_SetLongArrayRegion,
4894 4894 jni_SetFloatArrayRegion,
4895 4895 jni_SetDoubleArrayRegion,
4896 4896
4897 4897 jni_RegisterNatives,
4898 4898 jni_UnregisterNatives,
4899 4899
4900 4900 jni_MonitorEnter,
4901 4901 jni_MonitorExit,
4902 4902
4903 4903 jni_GetJavaVM,
4904 4904
4905 4905 jni_GetStringRegion,
4906 4906 jni_GetStringUTFRegion,
4907 4907
4908 4908 jni_GetPrimitiveArrayCritical,
4909 4909 jni_ReleasePrimitiveArrayCritical,
4910 4910
4911 4911 jni_GetStringCritical,
4912 4912 jni_ReleaseStringCritical,
4913 4913
4914 4914 jni_NewWeakGlobalRef,
4915 4915 jni_DeleteWeakGlobalRef,
4916 4916
4917 4917 jni_ExceptionCheck,
4918 4918
4919 4919 jni_NewDirectByteBuffer,
4920 4920 jni_GetDirectBufferAddress,
4921 4921 jni_GetDirectBufferCapacity,
4922 4922
4923 4923 // New 1_6 features
4924 4924
4925 4925 jni_GetObjectRefType
4926 4926 };
4927 4927
4928 4928
4929 4929 // For jvmti use to modify jni function table.
4930 4930 // Java threads in native contiues to run until it is transitioned
4931 4931 // to VM at safepoint. Before the transition or before it is blocked
4932 4932 // for safepoint it may access jni function table. VM could crash if
4933 4933 // any java thread access the jni function table in the middle of memcpy.
4934 4934 // To avoid this each function pointers are copied automically.
4935 4935 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {
4936 4936 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
4937 4937 intptr_t *a = (intptr_t *) jni_functions();
4938 4938 intptr_t *b = (intptr_t *) new_jni_NativeInterface;
4939 4939 for (uint i=0; i < sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {
4940 4940 Atomic::store_ptr(*b++, a++);
4941 4941 }
4942 4942 }
4943 4943
4944 4944 void quicken_jni_functions() {
4945 4945 // Replace Get<Primitive>Field with fast versions
4946 4946 if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()
4947 4947 && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls
4948 4948 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)
4949 4949 // windows x86 currently needs SEH wrapper and the gain of the fast
4950 4950 // versions currently isn't certain for server vm on uniprocessor.
4951 4951 && os::is_MP()
4952 4952 #endif
4953 4953 ) {
4954 4954 address func;
4955 4955 func = JNI_FastGetField::generate_fast_get_boolean_field();
4956 4956 if (func != (address)-1) {
4957 4957 jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;
4958 4958 }
4959 4959 func = JNI_FastGetField::generate_fast_get_byte_field();
4960 4960 if (func != (address)-1) {
4961 4961 jni_NativeInterface.GetByteField = (GetByteField_t)func;
4962 4962 }
4963 4963 func = JNI_FastGetField::generate_fast_get_char_field();
4964 4964 if (func != (address)-1) {
4965 4965 jni_NativeInterface.GetCharField = (GetCharField_t)func;
4966 4966 }
4967 4967 func = JNI_FastGetField::generate_fast_get_short_field();
4968 4968 if (func != (address)-1) {
4969 4969 jni_NativeInterface.GetShortField = (GetShortField_t)func;
4970 4970 }
4971 4971 func = JNI_FastGetField::generate_fast_get_int_field();
4972 4972 if (func != (address)-1) {
4973 4973 jni_NativeInterface.GetIntField = (GetIntField_t)func;
4974 4974 }
4975 4975 func = JNI_FastGetField::generate_fast_get_long_field();
4976 4976 if (func != (address)-1) {
4977 4977 jni_NativeInterface.GetLongField = (GetLongField_t)func;
4978 4978 }
4979 4979 func = JNI_FastGetField::generate_fast_get_float_field();
4980 4980 if (func != (address)-1) {
4981 4981 jni_NativeInterface.GetFloatField = (GetFloatField_t)func;
4982 4982 }
4983 4983 func = JNI_FastGetField::generate_fast_get_double_field();
4984 4984 if (func != (address)-1) {
4985 4985 jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;
4986 4986 }
4987 4987 }
4988 4988 }
4989 4989
4990 4990 // Returns the function structure
4991 4991 struct JNINativeInterface_* jni_functions() {
4992 4992 #if INCLUDE_JNI_CHECK
4993 4993 if (CheckJNICalls) return jni_functions_check();
4994 4994 #endif // INCLUDE_JNI_CHECK
4995 4995 return &jni_NativeInterface;
4996 4996 }
4997 4997
4998 4998 // Returns the function structure
4999 4999 struct JNINativeInterface_* jni_functions_nocheck() {
5000 5000 return &jni_NativeInterface;
5001 5001 }
5002 5002
5003 5003
5004 5004 // Invocation API
5005 5005
5006 5006
5007 5007 // Forward declaration
5008 5008 extern const struct JNIInvokeInterface_ jni_InvokeInterface;
5009 5009
5010 5010 // Global invocation API vars
5011 5011 volatile jint vm_created = 0;
5012 5012 // Indicate whether it is safe to recreate VM
5013 5013 volatile jint safe_to_recreate_vm = 1;
5014 5014 struct JavaVM_ main_vm = {&jni_InvokeInterface};
5015 5015
5016 5016
5017 5017 #define JAVASTACKSIZE (400 * 1024) /* Default size of a thread java stack */
5018 5018 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };
5019 5019
5020 5020 #ifndef USDT2
5021 5021 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);
5022 5022 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);
5023 5023 #else /* USDT2 */
5024 5024 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint
5025 5025 , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));
5026 5026 #endif /* USDT2 */
5027 5027
5028 5028 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {
5029 5029 #ifndef USDT2
5030 5030 HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);
5031 5031 #else /* USDT2 */
5032 5032 HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(
5033 5033 args_);
5034 5034 #endif /* USDT2 */
5035 5035 JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;
5036 5036 jint ret = JNI_ERR;
5037 5037 DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);
5038 5038
5039 5039 if (Threads::is_supported_jni_version(args->version)) {
5040 5040 ret = JNI_OK;
5041 5041 }
5042 5042 // 1.1 style no longer supported in hotspot.
5043 5043 // According the JNI spec, we should update args->version on return.
5044 5044 // We also use the structure to communicate with launcher about default
5045 5045 // stack size.
5046 5046 if (args->version == JNI_VERSION_1_1) {
5047 5047 args->version = JNI_VERSION_1_2;
5048 5048 // javaStackSize is int in arguments structure
5049 5049 assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");
5050 5050 args->javaStackSize = (jint)(ThreadStackSize * K);
5051 5051 }
5052 5052 return ret;
5053 5053 }
5054 5054
5055 5055 #ifndef PRODUCT
5056 5056
5057 5057 #include "gc_implementation/shared/gcTimer.hpp"
5058 5058 #include "gc_interface/collectedHeap.hpp"
5059 5059 #if INCLUDE_ALL_GCS
5060 5060 #include "gc_implementation/g1/heapRegionRemSet.hpp"
5061 5061 #endif
5062 5062 #include "memory/guardedMemory.hpp"
5063 5063 #include "utilities/quickSort.hpp"
5064 5064 #include "utilities/ostream.hpp"
5065 5065 #if INCLUDE_VM_STRUCTS
5066 5066 #include "runtime/vmStructs.hpp"
5067 5067 #endif
5068 5068
5069 5069 #define run_unit_test(unit_test_function_call) \
5070 5070 tty->print_cr("Running test: " #unit_test_function_call); \
5071 5071 unit_test_function_call
5072 5072
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5073 5073 // Forward declaration
5074 5074 void TestReservedSpace_test();
5075 5075 void TestReserveMemorySpecial_test();
5076 5076 void TestVirtualSpace_test();
5077 5077 void TestMetaspaceAux_test();
5078 5078 void TestMetachunk_test();
5079 5079 void TestVirtualSpaceNode_test();
5080 5080 void TestNewSize_test();
5081 5081 void TestKlass_test();
5082 5082 void Test_linked_list();
5083 +void TestChunkedList_test();
5083 5084 #if INCLUDE_ALL_GCS
5084 5085 void TestOldFreeSpaceCalculation_test();
5085 5086 void TestG1BiasedArray_test();
5086 5087 void TestBufferingOopClosure_test();
5087 5088 void TestCodeCacheRemSet_test();
5088 5089 void FreeRegionList_test();
5089 5090 #endif
5090 5091
5091 5092 void execute_internal_vm_tests() {
5092 5093 if (ExecuteInternalVMTests) {
5093 5094 tty->print_cr("Running internal VM tests");
5094 5095 run_unit_test(TestReservedSpace_test());
5095 5096 run_unit_test(TestReserveMemorySpecial_test());
5096 5097 run_unit_test(TestVirtualSpace_test());
5097 5098 run_unit_test(TestMetaspaceAux_test());
5098 5099 run_unit_test(TestMetachunk_test());
5099 5100 run_unit_test(TestVirtualSpaceNode_test());
5100 5101 run_unit_test(GlobalDefinitions::test_globals());
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5101 5102 run_unit_test(GCTimerAllTest::all());
5102 5103 run_unit_test(arrayOopDesc::test_max_array_length());
5103 5104 run_unit_test(CollectedHeap::test_is_in());
5104 5105 run_unit_test(QuickSort::test_quick_sort());
5105 5106 run_unit_test(GuardedMemory::test_guarded_memory());
5106 5107 run_unit_test(AltHashing::test_alt_hash());
5107 5108 run_unit_test(test_loggc_filename());
5108 5109 run_unit_test(TestNewSize_test());
5109 5110 run_unit_test(TestKlass_test());
5110 5111 run_unit_test(Test_linked_list());
5112 + run_unit_test(TestChunkedList_test());
5111 5113 #if INCLUDE_VM_STRUCTS
5112 5114 run_unit_test(VMStructs::test());
5113 5115 #endif
5114 5116 #if INCLUDE_ALL_GCS
5115 5117 run_unit_test(TestOldFreeSpaceCalculation_test());
5116 5118 run_unit_test(TestG1BiasedArray_test());
5117 5119 run_unit_test(HeapRegionRemSet::test_prt());
5118 5120 run_unit_test(TestBufferingOopClosure_test());
5119 5121 run_unit_test(TestCodeCacheRemSet_test());
5120 5122 if (UseG1GC) {
5121 5123 run_unit_test(FreeRegionList_test());
5122 5124 }
5123 5125 #endif
5124 5126 tty->print_cr("All internal VM tests passed");
5125 5127 }
5126 5128 }
5127 5129
5128 5130 #undef run_unit_test
5129 5131
5130 5132 #endif
5131 5133
5132 5134 #ifndef USDT2
5133 5135 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5134 5136 DT_RETURN_MARK_DECL(CreateJavaVM, jint);
5135 5137 #else /* USDT2 */
5136 5138 DT_RETURN_MARK_DECL(CreateJavaVM, jint
5137 5139 , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));
5138 5140 #endif /* USDT2 */
5139 5141
5140 5142 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {
5141 5143 #ifndef USDT2
5142 5144 HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5143 5145 #else /* USDT2 */
5144 5146 HOTSPOT_JNI_CREATEJAVAVM_ENTRY(
5145 5147 (void **) vm, penv, args);
5146 5148 #endif /* USDT2 */
5147 5149
5148 5150 jint result = JNI_ERR;
5149 5151 DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);
5150 5152
5151 5153 // We're about to use Atomic::xchg for synchronization. Some Zero
5152 5154 // platforms use the GCC builtin __sync_lock_test_and_set for this,
5153 5155 // but __sync_lock_test_and_set is not guaranteed to do what we want
5154 5156 // on all architectures. So we check it works before relying on it.
5155 5157 #if defined(ZERO) && defined(ASSERT)
5156 5158 {
5157 5159 jint a = 0xcafebabe;
5158 5160 jint b = Atomic::xchg(0xdeadbeef, &a);
5159 5161 void *c = &a;
5160 5162 void *d = Atomic::xchg_ptr(&b, &c);
5161 5163 assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");
5162 5164 assert(c == &b && d == &a, "Atomic::xchg_ptr() works");
5163 5165 }
5164 5166 #endif // ZERO && ASSERT
5165 5167
5166 5168 // At the moment it's only possible to have one Java VM,
5167 5169 // since some of the runtime state is in global variables.
5168 5170
5169 5171 // We cannot use our mutex locks here, since they only work on
5170 5172 // Threads. We do an atomic compare and exchange to ensure only
5171 5173 // one thread can call this method at a time
5172 5174
5173 5175 // We use Atomic::xchg rather than Atomic::add/dec since on some platforms
5174 5176 // the add/dec implementations are dependent on whether we are running
5175 5177 // on a multiprocessor, and at this stage of initialization the os::is_MP
5176 5178 // function used to determine this will always return false. Atomic::xchg
5177 5179 // does not have this problem.
5178 5180 if (Atomic::xchg(1, &vm_created) == 1) {
5179 5181 return JNI_EEXIST; // already created, or create attempt in progress
5180 5182 }
5181 5183 if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {
5182 5184 return JNI_ERR; // someone tried and failed and retry not allowed.
5183 5185 }
5184 5186
5185 5187 assert(vm_created == 1, "vm_created is true during the creation");
5186 5188
5187 5189 /**
5188 5190 * Certain errors during initialization are recoverable and do not
5189 5191 * prevent this method from being called again at a later time
5190 5192 * (perhaps with different arguments). However, at a certain
5191 5193 * point during initialization if an error occurs we cannot allow
5192 5194 * this function to be called again (or it will crash). In those
5193 5195 * situations, the 'canTryAgain' flag is set to false, which atomically
5194 5196 * sets safe_to_recreate_vm to 1, such that any new call to
5195 5197 * JNI_CreateJavaVM will immediately fail using the above logic.
5196 5198 */
5197 5199 bool can_try_again = true;
5198 5200
5199 5201 result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);
5200 5202 if (result == JNI_OK) {
5201 5203 JavaThread *thread = JavaThread::current();
5202 5204 /* thread is thread_in_vm here */
5203 5205 *vm = (JavaVM *)(&main_vm);
5204 5206 *(JNIEnv**)penv = thread->jni_environment();
5205 5207
5206 5208 // Tracks the time application was running before GC
5207 5209 RuntimeService::record_application_start();
5208 5210
5209 5211 // Notify JVMTI
5210 5212 if (JvmtiExport::should_post_thread_life()) {
5211 5213 JvmtiExport::post_thread_start(thread);
5212 5214 }
5213 5215
5214 5216 EventThreadStart event;
5215 5217 if (event.should_commit()) {
5216 5218 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));
5217 5219 event.commit();
5218 5220 }
5219 5221
5220 5222 #ifndef PRODUCT
5221 5223 #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED
5222 5224 #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()
5223 5225 #endif
5224 5226
5225 5227 // Check if we should compile all classes on bootclasspath
5226 5228 if (CompileTheWorld) ClassLoader::compile_the_world();
5227 5229 if (ReplayCompiles) ciReplay::replay(thread);
5228 5230
5229 5231 // Some platforms (like Win*) need a wrapper around these test
5230 5232 // functions in order to properly handle error conditions.
5231 5233 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);
5232 5234 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);
5233 5235 #endif
5234 5236
5235 5237 // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.
5236 5238 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5237 5239 } else {
5238 5240 if (can_try_again) {
5239 5241 // reset safe_to_recreate_vm to 1 so that retrial would be possible
5240 5242 safe_to_recreate_vm = 1;
5241 5243 }
5242 5244
5243 5245 // Creation failed. We must reset vm_created
5244 5246 *vm = 0;
5245 5247 *(JNIEnv**)penv = 0;
5246 5248 // reset vm_created last to avoid race condition. Use OrderAccess to
5247 5249 // control both compiler and architectural-based reordering.
5248 5250 OrderAccess::release_store(&vm_created, 0);
5249 5251 }
5250 5252
5251 5253 return result;
5252 5254 }
5253 5255
5254 5256 #ifndef USDT2
5255 5257 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \
5256 5258 JavaVM**, jsize, jsize*);
5257 5259 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);
5258 5260 #endif /* !USDT2 */
5259 5261
5260 5262 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {
5261 5263 // See bug 4367188, the wrapper can sometimes cause VM crashes
5262 5264 // JNIWrapper("GetCreatedJavaVMs");
5263 5265 #ifndef USDT2
5264 5266 HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \
5265 5267 vm_buf, bufLen, numVMs);
5266 5268 #else /* USDT2 */
5267 5269 HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(
5268 5270 (void **) vm_buf, bufLen, (uintptr_t *) numVMs);
5269 5271 #endif /* USDT2 */
5270 5272 if (vm_created) {
5271 5273 if (numVMs != NULL) *numVMs = 1;
5272 5274 if (bufLen > 0) *vm_buf = (JavaVM *)(&main_vm);
5273 5275 } else {
5274 5276 if (numVMs != NULL) *numVMs = 0;
5275 5277 }
5276 5278 #ifndef USDT2
5277 5279 HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);
5278 5280 #else /* USDT2 */
5279 5281 HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(
5280 5282 JNI_OK);
5281 5283 #endif /* USDT2 */
5282 5284 return JNI_OK;
5283 5285 }
5284 5286
5285 5287 extern "C" {
5286 5288
5287 5289 #ifndef USDT2
5288 5290 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);
5289 5291 #else /* USDT2 */
5290 5292 DT_RETURN_MARK_DECL(DestroyJavaVM, jint
5291 5293 , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));
5292 5294 #endif /* USDT2 */
5293 5295
5294 5296 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {
5295 5297 #ifndef USDT2
5296 5298 DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);
5297 5299 #else /* USDT2 */
5298 5300 HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(
5299 5301 vm);
5300 5302 #endif /* USDT2 */
5301 5303 jint res = JNI_ERR;
5302 5304 DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);
5303 5305
5304 5306 if (!vm_created) {
5305 5307 res = JNI_ERR;
5306 5308 return res;
5307 5309 }
5308 5310
5309 5311 JNIWrapper("DestroyJavaVM");
5310 5312 JNIEnv *env;
5311 5313 JavaVMAttachArgs destroyargs;
5312 5314 destroyargs.version = CurrentVersion;
5313 5315 destroyargs.name = (char *)"DestroyJavaVM";
5314 5316 destroyargs.group = NULL;
5315 5317 res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);
5316 5318 if (res != JNI_OK) {
5317 5319 return res;
5318 5320 }
5319 5321
5320 5322 // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.
5321 5323 JavaThread* thread = JavaThread::current();
5322 5324 ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5323 5325 if (Threads::destroy_vm()) {
5324 5326 // Should not change thread state, VM is gone
5325 5327 vm_created = false;
5326 5328 res = JNI_OK;
5327 5329 return res;
5328 5330 } else {
5329 5331 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5330 5332 res = JNI_ERR;
5331 5333 return res;
5332 5334 }
5333 5335 }
5334 5336
5335 5337
5336 5338 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {
5337 5339 JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;
5338 5340
5339 5341 // Check below commented out from JDK1.2fcs as well
5340 5342 /*
5341 5343 if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {
5342 5344 return JNI_EVERSION;
5343 5345 }
5344 5346 */
5345 5347
5346 5348 Thread* t = ThreadLocalStorage::get_thread_slow();
5347 5349 if (t != NULL) {
5348 5350 // If the thread has been attached this operation is a no-op
5349 5351 *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();
5350 5352 return JNI_OK;
5351 5353 }
5352 5354
5353 5355 // Create a thread and mark it as attaching so it will be skipped by the
5354 5356 // ThreadsListEnumerator - see CR 6404306
5355 5357 JavaThread* thread = new JavaThread(true);
5356 5358
5357 5359 // Set correct safepoint info. The thread is going to call into Java when
5358 5360 // initializing the Java level thread object. Hence, the correct state must
5359 5361 // be set in order for the Safepoint code to deal with it correctly.
5360 5362 thread->set_thread_state(_thread_in_vm);
5361 5363 // Must do this before initialize_thread_local_storage
5362 5364 thread->record_stack_base_and_size();
5363 5365
5364 5366 thread->initialize_thread_local_storage();
5365 5367
5366 5368 if (!os::create_attached_thread(thread)) {
5367 5369 delete thread;
5368 5370 return JNI_ERR;
5369 5371 }
5370 5372 // Enable stack overflow checks
5371 5373 thread->create_stack_guard_pages();
5372 5374
5373 5375 thread->initialize_tlab();
5374 5376
5375 5377 thread->cache_global_variables();
5376 5378
5377 5379 // Crucial that we do not have a safepoint check for this thread, since it has
5378 5380 // not been added to the Thread list yet.
5379 5381 { Threads_lock->lock_without_safepoint_check();
5380 5382 // This must be inside this lock in order to get FullGCALot to work properly, i.e., to
5381 5383 // avoid this thread trying to do a GC before it is added to the thread-list
5382 5384 thread->set_active_handles(JNIHandleBlock::allocate_block());
5383 5385 Threads::add(thread, daemon);
5384 5386 Threads_lock->unlock();
5385 5387 }
5386 5388 // Create thread group and name info from attach arguments
5387 5389 oop group = NULL;
5388 5390 char* thread_name = NULL;
5389 5391 if (args != NULL && Threads::is_supported_jni_version(args->version)) {
5390 5392 group = JNIHandles::resolve(args->group);
5391 5393 thread_name = args->name; // may be NULL
5392 5394 }
5393 5395 if (group == NULL) group = Universe::main_thread_group();
5394 5396
5395 5397 // Create Java level thread object and attach it to this thread
5396 5398 bool attach_failed = false;
5397 5399 {
5398 5400 EXCEPTION_MARK;
5399 5401 HandleMark hm(THREAD);
5400 5402 Handle thread_group(THREAD, group);
5401 5403 thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);
5402 5404 if (HAS_PENDING_EXCEPTION) {
5403 5405 CLEAR_PENDING_EXCEPTION;
5404 5406 // cleanup outside the handle mark.
5405 5407 attach_failed = true;
5406 5408 }
5407 5409 }
5408 5410
5409 5411 if (attach_failed) {
5410 5412 // Added missing cleanup
5411 5413 thread->cleanup_failed_attach_current_thread();
5412 5414 return JNI_ERR;
5413 5415 }
5414 5416
5415 5417 // mark the thread as no longer attaching
5416 5418 // this uses a fence to push the change through so we don't have
5417 5419 // to regrab the threads_lock
5418 5420 thread->set_done_attaching_via_jni();
5419 5421
5420 5422 // Set java thread status.
5421 5423 java_lang_Thread::set_thread_status(thread->threadObj(),
5422 5424 java_lang_Thread::RUNNABLE);
5423 5425
5424 5426 // Notify the debugger
5425 5427 if (JvmtiExport::should_post_thread_life()) {
5426 5428 JvmtiExport::post_thread_start(thread);
5427 5429 }
5428 5430
5429 5431 EventThreadStart event;
5430 5432 if (event.should_commit()) {
5431 5433 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));
5432 5434 event.commit();
5433 5435 }
5434 5436
5435 5437 *(JNIEnv**)penv = thread->jni_environment();
5436 5438
5437 5439 // Now leaving the VM, so change thread_state. This is normally automatically taken care
5438 5440 // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by
5439 5441 // using ThreadStateTransition::transition, we do a callback to the safepoint code if
5440 5442 // needed.
5441 5443
5442 5444 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5443 5445
5444 5446 // Perform any platform dependent FPU setup
5445 5447 os::setup_fpu();
5446 5448
5447 5449 return JNI_OK;
5448 5450 }
5449 5451
5450 5452
5451 5453 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {
5452 5454 #ifndef USDT2
5453 5455 DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);
5454 5456 #else /* USDT2 */
5455 5457 HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(
5456 5458 vm, penv, _args);
5457 5459 #endif /* USDT2 */
5458 5460 if (!vm_created) {
5459 5461 #ifndef USDT2
5460 5462 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);
5461 5463 #else /* USDT2 */
5462 5464 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5463 5465 (uint32_t) JNI_ERR);
5464 5466 #endif /* USDT2 */
5465 5467 return JNI_ERR;
5466 5468 }
5467 5469
5468 5470 JNIWrapper("AttachCurrentThread");
5469 5471 jint ret = attach_current_thread(vm, penv, _args, false);
5470 5472 #ifndef USDT2
5471 5473 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);
5472 5474 #else /* USDT2 */
5473 5475 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5474 5476 ret);
5475 5477 #endif /* USDT2 */
5476 5478 return ret;
5477 5479 }
5478 5480
5479 5481
5480 5482 jint JNICALL jni_DetachCurrentThread(JavaVM *vm) {
5481 5483 #ifndef USDT2
5482 5484 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);
5483 5485 #else /* USDT2 */
5484 5486 HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(
5485 5487 vm);
5486 5488 #endif /* USDT2 */
5487 5489 VM_Exit::block_if_vm_exited();
5488 5490
5489 5491 JNIWrapper("DetachCurrentThread");
5490 5492
5491 5493 // If the thread has been deattacted the operations is a no-op
5492 5494 if (ThreadLocalStorage::thread() == NULL) {
5493 5495 #ifndef USDT2
5494 5496 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5495 5497 #else /* USDT2 */
5496 5498 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5497 5499 JNI_OK);
5498 5500 #endif /* USDT2 */
5499 5501 return JNI_OK;
5500 5502 }
5501 5503
5502 5504 JavaThread* thread = JavaThread::current();
5503 5505 if (thread->has_last_Java_frame()) {
5504 5506 #ifndef USDT2
5505 5507 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);
5506 5508 #else /* USDT2 */
5507 5509 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5508 5510 (uint32_t) JNI_ERR);
5509 5511 #endif /* USDT2 */
5510 5512 // Can't detach a thread that's running java, that can't work.
5511 5513 return JNI_ERR;
5512 5514 }
5513 5515
5514 5516 // Safepoint support. Have to do call-back to safepoint code, if in the
5515 5517 // middel of a safepoint operation
5516 5518 ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5517 5519
5518 5520 // XXX: Note that JavaThread::exit() call below removes the guards on the
5519 5521 // stack pages set up via enable_stack_{red,yellow}_zone() calls
5520 5522 // above in jni_AttachCurrentThread. Unfortunately, while the setting
5521 5523 // of the guards is visible in jni_AttachCurrentThread above,
5522 5524 // the removal of the guards is buried below in JavaThread::exit()
5523 5525 // here. The abstraction should be more symmetrically either exposed
5524 5526 // or hidden (e.g. it could probably be hidden in the same
5525 5527 // (platform-dependent) methods where we do alternate stack
5526 5528 // maintenance work?)
5527 5529 thread->exit(false, JavaThread::jni_detach);
5528 5530 delete thread;
5529 5531
5530 5532 #ifndef USDT2
5531 5533 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5532 5534 #else /* USDT2 */
5533 5535 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5534 5536 JNI_OK);
5535 5537 #endif /* USDT2 */
5536 5538 return JNI_OK;
5537 5539 }
5538 5540
5539 5541 #ifndef USDT2
5540 5542 DT_RETURN_MARK_DECL(GetEnv, jint);
5541 5543 #else /* USDT2 */
5542 5544 DT_RETURN_MARK_DECL(GetEnv, jint
5543 5545 , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));
5544 5546 #endif /* USDT2 */
5545 5547
5546 5548 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {
5547 5549 #ifndef USDT2
5548 5550 DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);
5549 5551 #else /* USDT2 */
5550 5552 HOTSPOT_JNI_GETENV_ENTRY(
5551 5553 vm, penv, version);
5552 5554 #endif /* USDT2 */
5553 5555 jint ret = JNI_ERR;
5554 5556 DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);
5555 5557
5556 5558 if (!vm_created) {
5557 5559 *penv = NULL;
5558 5560 ret = JNI_EDETACHED;
5559 5561 return ret;
5560 5562 }
5561 5563
5562 5564 if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {
5563 5565 return ret;
5564 5566 }
5565 5567
5566 5568 #ifndef JVMPI_VERSION_1
5567 5569 // need these in order to be polite about older agents
5568 5570 #define JVMPI_VERSION_1 ((jint)0x10000001)
5569 5571 #define JVMPI_VERSION_1_1 ((jint)0x10000002)
5570 5572 #define JVMPI_VERSION_1_2 ((jint)0x10000003)
5571 5573 #endif // !JVMPI_VERSION_1
5572 5574
5573 5575 Thread* thread = ThreadLocalStorage::thread();
5574 5576 if (thread != NULL && thread->is_Java_thread()) {
5575 5577 if (Threads::is_supported_jni_version_including_1_1(version)) {
5576 5578 *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();
5577 5579 ret = JNI_OK;
5578 5580 return ret;
5579 5581
5580 5582 } else if (version == JVMPI_VERSION_1 ||
5581 5583 version == JVMPI_VERSION_1_1 ||
5582 5584 version == JVMPI_VERSION_1_2) {
5583 5585 tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");
5584 5586 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5585 5587 ret = JNI_EVERSION;
5586 5588 return ret;
5587 5589 } else if (JvmtiExport::is_jvmdi_version(version)) {
5588 5590 tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");
5589 5591 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5590 5592 ret = JNI_EVERSION;
5591 5593 return ret;
5592 5594 } else {
5593 5595 *penv = NULL;
5594 5596 ret = JNI_EVERSION;
5595 5597 return ret;
5596 5598 }
5597 5599 } else {
5598 5600 *penv = NULL;
5599 5601 ret = JNI_EDETACHED;
5600 5602 return ret;
5601 5603 }
5602 5604 }
5603 5605
5604 5606
5605 5607 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {
5606 5608 #ifndef USDT2
5607 5609 DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);
5608 5610 #else /* USDT2 */
5609 5611 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(
5610 5612 vm, penv, _args);
5611 5613 #endif /* USDT2 */
5612 5614 if (!vm_created) {
5613 5615 #ifndef USDT2
5614 5616 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);
5615 5617 #else /* USDT2 */
5616 5618 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5617 5619 (uint32_t) JNI_ERR);
5618 5620 #endif /* USDT2 */
5619 5621 return JNI_ERR;
5620 5622 }
5621 5623
5622 5624 JNIWrapper("AttachCurrentThreadAsDaemon");
5623 5625 jint ret = attach_current_thread(vm, penv, _args, true);
5624 5626 #ifndef USDT2
5625 5627 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);
5626 5628 #else /* USDT2 */
5627 5629 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5628 5630 ret);
5629 5631 #endif /* USDT2 */
5630 5632 return ret;
5631 5633 }
5632 5634
5633 5635
5634 5636 } // End extern "C"
5635 5637
5636 5638 const struct JNIInvokeInterface_ jni_InvokeInterface = {
5637 5639 NULL,
5638 5640 NULL,
5639 5641 NULL,
5640 5642
5641 5643 jni_DestroyJavaVM,
5642 5644 jni_AttachCurrentThread,
5643 5645 jni_DetachCurrentThread,
5644 5646 jni_GetEnv,
5645 5647 jni_AttachCurrentThreadAsDaemon
5646 5648 };
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