1 /*
2 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2012 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #include "precompiled.hpp"
27 #include "ci/ciReplay.hpp"
28 #include "classfile/altHashing.hpp"
29 #include "classfile/classLoader.hpp"
30 #include "classfile/javaClasses.hpp"
31 #include "classfile/symbolTable.hpp"
32 #include "classfile/systemDictionary.hpp"
33 #include "classfile/vmSymbols.hpp"
34 #include "interpreter/linkResolver.hpp"
35 #include "utilities/macros.hpp"
36 #if INCLUDE_ALL_GCS
37 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
38 #endif // INCLUDE_ALL_GCS
39 #include "memory/allocation.hpp"
40 #include "memory/allocation.inline.hpp"
41 #include "memory/gcLocker.inline.hpp"
42 #include "memory/oopFactory.hpp"
43 #include "memory/universe.inline.hpp"
44 #include "oops/instanceKlass.hpp"
45 #include "oops/instanceOop.hpp"
46 #include "oops/markOop.hpp"
47 #include "oops/method.hpp"
48 #include "oops/objArrayKlass.hpp"
49 #include "oops/objArrayOop.hpp"
50 #include "oops/oop.inline.hpp"
51 #include "oops/symbol.hpp"
52 #include "oops/typeArrayKlass.hpp"
53 #include "oops/typeArrayOop.hpp"
54 #include "prims/jni.h"
55 #include "prims/jniCheck.hpp"
56 #include "prims/jniExport.hpp"
57 #include "prims/jniFastGetField.hpp"
58 #include "prims/jvm.h"
59 #include "prims/jvm_misc.hpp"
60 #include "prims/jvmtiExport.hpp"
61 #include "prims/jvmtiThreadState.hpp"
62 #include "runtime/compilationPolicy.hpp"
63 #include "runtime/fieldDescriptor.hpp"
64 #include "runtime/fprofiler.hpp"
65 #include "runtime/handles.inline.hpp"
66 #include "runtime/interfaceSupport.hpp"
67 #include "runtime/java.hpp"
68 #include "runtime/javaCalls.hpp"
69 #include "runtime/jfieldIDWorkaround.hpp"
70 #include "runtime/orderAccess.inline.hpp"
71 #include "runtime/reflection.hpp"
72 #include "runtime/sharedRuntime.hpp"
73 #include "runtime/signature.hpp"
74 #include "runtime/thread.inline.hpp"
75 #include "runtime/vm_operations.hpp"
76 #include "services/memTracker.hpp"
77 #include "services/runtimeService.hpp"
78 #include "trace/tracing.hpp"
79 #include "utilities/defaultStream.hpp"
80 #include "utilities/dtrace.hpp"
81 #include "utilities/events.hpp"
82 #include "utilities/histogram.hpp"
83 #ifdef TARGET_OS_FAMILY_linux
84 # include "os_linux.inline.hpp"
85 #endif
86 #ifdef TARGET_OS_FAMILY_solaris
87 # include "os_solaris.inline.hpp"
88 #endif
89 #ifdef TARGET_OS_FAMILY_windows
90 # include "os_windows.inline.hpp"
91 #endif
92 #ifdef TARGET_OS_FAMILY_bsd
93 # include "os_bsd.inline.hpp"
94 #endif
95
96 static jint CurrentVersion = JNI_VERSION_1_8;
97
98
99 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace
100 // '-return' probe regardless of the return path is taken out of the function.
101 // Methods that have multiple return paths use this to avoid having to
102 // instrument each return path. Methods that use CHECK or THROW must use this
103 // since those macros can cause an immedate uninstrumented return.
104 //
105 // In order to get the return value, a reference to the variable containing
106 // the return value must be passed to the contructor of the object, and
107 // the return value must be set before return (since the mark object has
108 // a reference to it).
109 //
110 // Example:
111 // DT_RETURN_MARK_DECL(SomeFunc, int);
112 // JNI_ENTRY(int, SomeFunc, ...)
113 // int return_value = 0;
114 // DT_RETURN_MARK(SomeFunc, int, (const int&)return_value);
115 // foo(CHECK_0)
116 // return_value = 5;
117 // return return_value;
118 // JNI_END
119 #ifndef USDT2
120 #define DT_RETURN_MARK_DECL(name, type) \
121 HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type); \
122 DTRACE_ONLY( \
123 class DTraceReturnProbeMark_##name { \
124 public: \
125 const type& _ret_ref; \
126 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \
127 ~DTraceReturnProbeMark_##name() { \
128 HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref); \
129 } \
130 } \
131 )
132 // Void functions are simpler since there's no return value
133 #define DT_VOID_RETURN_MARK_DECL(name) \
134 HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return); \
135 DTRACE_ONLY( \
136 class DTraceReturnProbeMark_##name { \
137 public: \
138 ~DTraceReturnProbeMark_##name() { \
139 HS_DTRACE_PROBE0(hotspot_jni, name##__return); \
140 } \
141 } \
142 )
143
144 #else /* USDT2 */
145
146 #define DT_RETURN_MARK_DECL(name, type, probe) \
147 DTRACE_ONLY( \
148 class DTraceReturnProbeMark_##name { \
149 public: \
150 const type& _ret_ref; \
151 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \
152 ~DTraceReturnProbeMark_##name() { \
153 probe; \
154 } \
155 } \
156 )
157 // Void functions are simpler since there's no return value
158 #define DT_VOID_RETURN_MARK_DECL(name, probe) \
159 DTRACE_ONLY( \
160 class DTraceReturnProbeMark_##name { \
161 public: \
162 ~DTraceReturnProbeMark_##name() { \
163 probe; \
164 } \
165 } \
166 )
167 #endif /* USDT2 */
168
169 // Place these macros in the function to mark the return. Non-void
170 // functions need the type and address of the return value.
171 #define DT_RETURN_MARK(name, type, ref) \
172 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) )
173 #define DT_VOID_RETURN_MARK(name) \
174 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )
175
176
177 // Use these to select distinct code for floating-point vs. non-floating point
178 // situations. Used from within common macros where we need slightly
179 // different behavior for Float/Double
180 #define FP_SELECT_Boolean(intcode, fpcode) intcode
181 #define FP_SELECT_Byte(intcode, fpcode) intcode
182 #define FP_SELECT_Char(intcode, fpcode) intcode
183 #define FP_SELECT_Short(intcode, fpcode) intcode
184 #define FP_SELECT_Object(intcode, fpcode) intcode
185 #define FP_SELECT_Int(intcode, fpcode) intcode
186 #define FP_SELECT_Long(intcode, fpcode) intcode
187 #define FP_SELECT_Float(intcode, fpcode) fpcode
188 #define FP_SELECT_Double(intcode, fpcode) fpcode
189 #define FP_SELECT(TypeName, intcode, fpcode) \
190 FP_SELECT_##TypeName(intcode, fpcode)
191
192 #define COMMA ,
193
194 // Choose DT_RETURN_MARK macros based on the type: float/double -> void
195 // (dtrace doesn't do FP yet)
196 #ifndef USDT2
197 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \
198 FP_SELECT(TypeName, \
199 DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )
200 #else /* USDT2 */
201 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe) \
202 FP_SELECT(TypeName, \
203 DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) )
204 #endif /* USDT2 */
205 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \
206 FP_SELECT(TypeName, \
207 DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) )
208
209
210 // out-of-line helpers for class jfieldIDWorkaround:
211
212 bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) {
213 if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) {
214 uintptr_t as_uint = (uintptr_t) id;
215 intptr_t offset = raw_instance_offset(id);
216 if (is_checked_jfieldID(id)) {
217 if (!klass_hash_ok(k, id)) {
218 return false;
219 }
220 }
221 return InstanceKlass::cast(k)->contains_field_offset(offset);
222 } else {
223 JNIid* result = (JNIid*) id;
224 #ifdef ASSERT
225 return result != NULL && result->is_static_field_id();
226 #else
227 return result != NULL;
228 #endif
229 }
230 }
231
232
233 intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) {
234 if (offset <= small_offset_mask) {
235 Klass* field_klass = k;
236 Klass* super_klass = field_klass->super();
237 // With compressed oops the most super class with nonstatic fields would
238 // be the owner of fields embedded in the header.
239 while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() &&
240 InstanceKlass::cast(super_klass)->contains_field_offset(offset)) {
241 field_klass = super_klass; // super contains the field also
242 super_klass = field_klass->super();
243 }
244 debug_only(No_Safepoint_Verifier nosafepoint;)
245 uintptr_t klass_hash = field_klass->identity_hash();
246 return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place;
247 } else {
248 #if 0
249 #ifndef PRODUCT
250 {
251 ResourceMark rm;
252 warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name());
253 }
254 #endif
255 #endif
256 return 0;
257 }
258 }
259
260 bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) {
261 uintptr_t as_uint = (uintptr_t) id;
262 intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask;
263 do {
264 debug_only(No_Safepoint_Verifier nosafepoint;)
265 // Could use a non-blocking query for identity_hash here...
266 if ((k->identity_hash() & klass_mask) == klass_hash)
267 return true;
268 k = k->super();
269 } while (k != NULL);
270 return false;
271 }
272
273 void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) {
274 guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" );
275 uintptr_t as_uint = (uintptr_t) id;
276 intptr_t offset = raw_instance_offset(id);
277 if (VerifyJNIFields) {
278 if (is_checked_jfieldID(id)) {
279 guarantee(klass_hash_ok(k, id),
280 "Bug in native code: jfieldID class must match object");
281 } else {
282 #if 0
283 #ifndef PRODUCT
284 if (Verbose) {
285 ResourceMark rm;
286 warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name());
287 }
288 #endif
289 #endif
290 }
291 }
292 guarantee(InstanceKlass::cast(k)->contains_field_offset(offset),
293 "Bug in native code: jfieldID offset must address interior of object");
294 }
295
296 // Wrapper to trace JNI functions
297
298 #ifdef ASSERT
299 Histogram* JNIHistogram;
300 static volatile jint JNIHistogram_lock = 0;
301
302 class JNITraceWrapper : public StackObj {
303 public:
304 JNITraceWrapper(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {
305 if (TraceJNICalls) {
306 va_list ap;
307 va_start(ap, format);
308 tty->print("JNI ");
309 tty->vprint_cr(format, ap);
310 va_end(ap);
311 }
312 }
313 };
314
315 class JNIHistogramElement : public HistogramElement {
316 public:
317 JNIHistogramElement(const char* name);
318 };
319
320 JNIHistogramElement::JNIHistogramElement(const char* elementName) {
321 _name = elementName;
322 uintx count = 0;
323
324 while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) {
325 while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) {
326 count +=1;
327 if ( (WarnOnStalledSpinLock > 0)
328 && (count % WarnOnStalledSpinLock == 0)) {
329 warning("JNIHistogram_lock seems to be stalled");
330 }
331 }
332 }
333
334
335 if(JNIHistogram == NULL)
336 JNIHistogram = new Histogram("JNI Call Counts",100);
337
338 JNIHistogram->add_element(this);
339 Atomic::dec(&JNIHistogram_lock);
340 }
341
342 #define JNICountWrapper(arg) \
343 static JNIHistogramElement* e = new JNIHistogramElement(arg); \
344 /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \
345 if (e != NULL) e->increment_count()
346 #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg)
347 #else
348 #define JNIWrapper(arg)
349 #endif
350
351
352 // Implementation of JNI entries
353
354 #ifndef USDT2
355 DT_RETURN_MARK_DECL(DefineClass, jclass);
356 #else /* USDT2 */
357 DT_RETURN_MARK_DECL(DefineClass, jclass
358 , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));
359 #endif /* USDT2 */
360
361 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef,
362 const jbyte *buf, jsize bufLen))
363 JNIWrapper("DefineClass");
364
365 #ifndef USDT2
366 DTRACE_PROBE5(hotspot_jni, DefineClass__entry,
367 env, name, loaderRef, buf, bufLen);
368 #else /* USDT2 */
369 HOTSPOT_JNI_DEFINECLASS_ENTRY(
370 env, (char*) name, loaderRef, (char*) buf, bufLen);
371 #endif /* USDT2 */
372 jclass cls = NULL;
373 DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls);
374
375 TempNewSymbol class_name = NULL;
376 // Since exceptions can be thrown, class initialization can take place
377 // if name is NULL no check for class name in .class stream has to be made.
378 if (name != NULL) {
379 const int str_len = (int)strlen(name);
380 if (str_len > Symbol::max_length()) {
381 // It's impossible to create this class; the name cannot fit
382 // into the constant pool.
383 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
384 }
385 class_name = SymbolTable::new_symbol(name, CHECK_NULL);
386 }
387 ResourceMark rm(THREAD);
388 ClassFileStream st((u1*) buf, bufLen, NULL);
389 Handle class_loader (THREAD, JNIHandles::resolve(loaderRef));
390
391 if (UsePerfData && !class_loader.is_null()) {
392 // check whether the current caller thread holds the lock or not.
393 // If not, increment the corresponding counter
394 if (ObjectSynchronizer::
395 query_lock_ownership((JavaThread*)THREAD, class_loader) !=
396 ObjectSynchronizer::owner_self) {
397 ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc();
398 }
399 }
400 Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader,
401 Handle(), &st, true,
402 CHECK_NULL);
403
404 if (TraceClassResolution && k != NULL) {
405 trace_class_resolution(k);
406 }
407
408 cls = (jclass)JNIHandles::make_local(
409 env, k->java_mirror());
410 return cls;
411 JNI_END
412
413
414
415 static bool first_time_FindClass = true;
416
417 #ifndef USDT2
418 DT_RETURN_MARK_DECL(FindClass, jclass);
419 #else /* USDT2 */
420 DT_RETURN_MARK_DECL(FindClass, jclass
421 , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));
422 #endif /* USDT2 */
423
424 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name))
425 JNIWrapper("FindClass");
426 #ifndef USDT2
427 DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name);
428 #else /* USDT2 */
429 HOTSPOT_JNI_FINDCLASS_ENTRY(
430 env, (char *)name);
431 #endif /* USDT2 */
432
433 jclass result = NULL;
434 DT_RETURN_MARK(FindClass, jclass, (const jclass&)result);
435
436 // Remember if we are the first invocation of jni_FindClass
437 bool first_time = first_time_FindClass;
438 first_time_FindClass = false;
439
440 // Sanity check the name: it cannot be null or larger than the maximum size
441 // name we can fit in the constant pool.
442 if (name == NULL || (int)strlen(name) > Symbol::max_length()) {
443 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
444 }
445
446 //%note jni_3
447 Handle loader;
448 Handle protection_domain;
449 // Find calling class
450 instanceKlassHandle k (THREAD, thread->security_get_caller_class(0));
451 if (k.not_null()) {
452 loader = Handle(THREAD, k->class_loader());
453 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed
454 // in the correct class context.
455 if (loader.is_null() &&
456 k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) {
457 JavaValue result(T_OBJECT);
458 JavaCalls::call_static(&result, k,
459 vmSymbols::getFromClass_name(),
460 vmSymbols::void_class_signature(),
461 thread);
462 if (HAS_PENDING_EXCEPTION) {
463 Handle ex(thread, thread->pending_exception());
464 CLEAR_PENDING_EXCEPTION;
465 THROW_HANDLE_0(ex);
466 }
467 oop mirror = (oop) result.get_jobject();
468 loader = Handle(THREAD,
469 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader());
470 protection_domain = Handle(THREAD,
471 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain());
472 }
473 } else {
474 // We call ClassLoader.getSystemClassLoader to obtain the system class loader.
475 loader = Handle(THREAD, SystemDictionary::java_system_loader());
476 }
477
478 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
479 result = find_class_from_class_loader(env, sym, true, loader,
480 protection_domain, true, thread);
481
482 if (TraceClassResolution && result != NULL) {
483 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
484 }
485
486 // If we were the first invocation of jni_FindClass, we enable compilation again
487 // rather than just allowing invocation counter to overflow and decay.
488 // Controlled by flag DelayCompilationDuringStartup.
489 if (first_time && !CompileTheWorld)
490 CompilationPolicy::completed_vm_startup();
491
492 return result;
493 JNI_END
494
495 #ifndef USDT2
496 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);
497 #else /* USDT2 */
498 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID
499 , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));
500 #endif /* USDT2 */
501
502 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method))
503 JNIWrapper("FromReflectedMethod");
504 #ifndef USDT2
505 DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method);
506 #else /* USDT2 */
507 HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(
508 env, method);
509 #endif /* USDT2 */
510 jmethodID ret = NULL;
511 DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret);
512
513 // method is a handle to a java.lang.reflect.Method object
514 oop reflected = JNIHandles::resolve_non_null(method);
515 oop mirror = NULL;
516 int slot = 0;
517
518 if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) {
519 mirror = java_lang_reflect_Constructor::clazz(reflected);
520 slot = java_lang_reflect_Constructor::slot(reflected);
521 } else {
522 assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
523 mirror = java_lang_reflect_Method::clazz(reflected);
524 slot = java_lang_reflect_Method::slot(reflected);
525 }
526 Klass* k = java_lang_Class::as_Klass(mirror);
527
528 KlassHandle k1(THREAD, k);
529 // Make sure class is initialized before handing id's out to methods
530 k1()->initialize(CHECK_NULL);
531 Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot);
532 ret = m==NULL? NULL : m->jmethod_id(); // return NULL if reflected method deleted
533 return ret;
534 JNI_END
535
536 #ifndef USDT2
537 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);
538 #else /* USDT2 */
539 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID
540 , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));
541 #endif /* USDT2 */
542
543 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field))
544 JNIWrapper("FromReflectedField");
545 #ifndef USDT2
546 DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field);
547 #else /* USDT2 */
548 HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(
549 env, field);
550 #endif /* USDT2 */
551 jfieldID ret = NULL;
552 DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret);
553
554 // field is a handle to a java.lang.reflect.Field object
555 oop reflected = JNIHandles::resolve_non_null(field);
556 oop mirror = java_lang_reflect_Field::clazz(reflected);
557 Klass* k = java_lang_Class::as_Klass(mirror);
558 int slot = java_lang_reflect_Field::slot(reflected);
559 int modifiers = java_lang_reflect_Field::modifiers(reflected);
560
561 KlassHandle k1(THREAD, k);
562 // Make sure class is initialized before handing id's out to fields
563 k1()->initialize(CHECK_NULL);
564
565 // First check if this is a static field
566 if (modifiers & JVM_ACC_STATIC) {
567 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
568 JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset);
569 assert(id != NULL, "corrupt Field object");
570 debug_only(id->set_is_static_field_id();)
571 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
572 ret = jfieldIDWorkaround::to_static_jfieldID(id);
573 return ret;
574 }
575
576 // The slot is the index of the field description in the field-array
577 // The jfieldID is the offset of the field within the object
578 // It may also have hash bits for k, if VerifyJNIFields is turned on.
579 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
580 assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object");
581 ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset);
582 return ret;
583 JNI_END
584
585 #ifndef USDT2
586 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);
587 #else /* USDT2 */
588 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject
589 , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));
590 #endif /* USDT2 */
591
592 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic))
593 JNIWrapper("ToReflectedMethod");
594 #ifndef USDT2
595 DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic);
596 #else /* USDT2 */
597 HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(
598 env, cls, (uintptr_t) method_id, isStatic);
599 #endif /* USDT2 */
600 jobject ret = NULL;
601 DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret);
602
603 methodHandle m (THREAD, Method::resolve_jmethod_id(method_id));
604 assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match");
605 oop reflection_method;
606 if (m->is_initializer()) {
607 reflection_method = Reflection::new_constructor(m, CHECK_NULL);
608 } else {
609 reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL);
610 }
611 ret = JNIHandles::make_local(env, reflection_method);
612 return ret;
613 JNI_END
614
615 #ifndef USDT2
616 DT_RETURN_MARK_DECL(GetSuperclass, jclass);
617 #else /* USDT2 */
618 DT_RETURN_MARK_DECL(GetSuperclass, jclass
619 , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));
620 #endif /* USDT2 */
621
622 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub))
623 JNIWrapper("GetSuperclass");
624 #ifndef USDT2
625 DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub);
626 #else /* USDT2 */
627 HOTSPOT_JNI_GETSUPERCLASS_ENTRY(
628 env, sub);
629 #endif /* USDT2 */
630 jclass obj = NULL;
631 DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj);
632
633 oop mirror = JNIHandles::resolve_non_null(sub);
634 // primitive classes return NULL
635 if (java_lang_Class::is_primitive(mirror)) return NULL;
636
637 // Rules of Class.getSuperClass as implemented by KLass::java_super:
638 // arrays return Object
639 // interfaces return NULL
640 // proper classes return Klass::super()
641 Klass* k = java_lang_Class::as_Klass(mirror);
642 if (k->is_interface()) return NULL;
643
644 // return mirror for superclass
645 Klass* super = k->java_super();
646 // super2 is the value computed by the compiler's getSuperClass intrinsic:
647 debug_only(Klass* super2 = ( k->oop_is_array()
648 ? SystemDictionary::Object_klass()
649 : k->super() ) );
650 assert(super == super2,
651 "java_super computation depends on interface, array, other super");
652 obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror());
653 return obj;
654 JNI_END
655
656 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super))
657 JNIWrapper("IsSubclassOf");
658 #ifndef USDT2
659 DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super);
660 #else /* USDT2 */
661 HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(
662 env, sub, super);
663 #endif /* USDT2 */
664 oop sub_mirror = JNIHandles::resolve_non_null(sub);
665 oop super_mirror = JNIHandles::resolve_non_null(super);
666 if (java_lang_Class::is_primitive(sub_mirror) ||
667 java_lang_Class::is_primitive(super_mirror)) {
668 jboolean ret = (sub_mirror == super_mirror);
669 #ifndef USDT2
670 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
671 #else /* USDT2 */
672 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
673 ret);
674 #endif /* USDT2 */
675 return ret;
676 }
677 Klass* sub_klass = java_lang_Class::as_Klass(sub_mirror);
678 Klass* super_klass = java_lang_Class::as_Klass(super_mirror);
679 assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom");
680 jboolean ret = sub_klass->is_subtype_of(super_klass) ?
681 JNI_TRUE : JNI_FALSE;
682 #ifndef USDT2
683 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
684 #else /* USDT2 */
685 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
686 ret);
687 #endif /* USDT2 */
688 return ret;
689 JNI_END
690
691 #ifndef USDT2
692 DT_RETURN_MARK_DECL(Throw, jint);
693 #else /* USDT2 */
694 DT_RETURN_MARK_DECL(Throw, jint
695 , HOTSPOT_JNI_THROW_RETURN(_ret_ref));
696 #endif /* USDT2 */
697
698 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj))
699 JNIWrapper("Throw");
700 #ifndef USDT2
701 DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj);
702 #else /* USDT2 */
703 HOTSPOT_JNI_THROW_ENTRY(
704 env, obj);
705 #endif /* USDT2 */
706 jint ret = JNI_OK;
707 DT_RETURN_MARK(Throw, jint, (const jint&)ret);
708
709 THROW_OOP_(JNIHandles::resolve(obj), JNI_OK);
710 ShouldNotReachHere();
711 JNI_END
712
713 #ifndef USDT2
714 DT_RETURN_MARK_DECL(ThrowNew, jint);
715 #else /* USDT2 */
716 DT_RETURN_MARK_DECL(ThrowNew, jint
717 , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));
718 #endif /* USDT2 */
719
720 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message))
721 JNIWrapper("ThrowNew");
722 #ifndef USDT2
723 DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message);
724 #else /* USDT2 */
725 HOTSPOT_JNI_THROWNEW_ENTRY(
726 env, clazz, (char *) message);
727 #endif /* USDT2 */
728 jint ret = JNI_OK;
729 DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret);
730
731 InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
732 Symbol* name = k->name();
733 Handle class_loader (THREAD, k->class_loader());
734 Handle protection_domain (THREAD, k->protection_domain());
735 THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK);
736 ShouldNotReachHere();
737 JNI_END
738
739
740 // JNI functions only transform a pending async exception to a synchronous
741 // exception in ExceptionOccurred and ExceptionCheck calls, since
742 // delivering an async exception in other places won't change the native
743 // code's control flow and would be harmful when native code further calls
744 // JNI functions with a pending exception. Async exception is also checked
745 // during the call, so ExceptionOccurred/ExceptionCheck won't return
746 // false but deliver the async exception at the very end during
747 // state transition.
748
749 static void jni_check_async_exceptions(JavaThread *thread) {
750 assert(thread == Thread::current(), "must be itself");
751 thread->check_and_handle_async_exceptions();
752 }
753
754 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env))
755 JNIWrapper("ExceptionOccurred");
756 #ifndef USDT2
757 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);
758 #else /* USDT2 */
759 HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(
760 env);
761 #endif /* USDT2 */
762 jni_check_async_exceptions(thread);
763 oop exception = thread->pending_exception();
764 jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception);
765 #ifndef USDT2
766 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);
767 #else /* USDT2 */
768 HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(
769 ret);
770 #endif /* USDT2 */
771 return ret;
772 JNI_END
773
774
775 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env))
776 JNIWrapper("ExceptionDescribe");
777 #ifndef USDT2
778 DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);
779 #else /* USDT2 */
780 HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(
781 env);
782 #endif /* USDT2 */
783 if (thread->has_pending_exception()) {
784 Handle ex(thread, thread->pending_exception());
785 thread->clear_pending_exception();
786 if (ex->is_a(SystemDictionary::ThreadDeath_klass())) {
787 // Don't print anything if we are being killed.
788 } else {
789 jio_fprintf(defaultStream::error_stream(), "Exception ");
790 if (thread != NULL && thread->threadObj() != NULL) {
791 ResourceMark rm(THREAD);
792 jio_fprintf(defaultStream::error_stream(),
793 "in thread \"%s\" ", thread->get_thread_name());
794 }
795 if (ex->is_a(SystemDictionary::Throwable_klass())) {
796 JavaValue result(T_VOID);
797 JavaCalls::call_virtual(&result,
798 ex,
799 KlassHandle(THREAD,
800 SystemDictionary::Throwable_klass()),
801 vmSymbols::printStackTrace_name(),
802 vmSymbols::void_method_signature(),
803 THREAD);
804 // If an exception is thrown in the call it gets thrown away. Not much
805 // we can do with it. The native code that calls this, does not check
806 // for the exception - hence, it might still be in the thread when DestroyVM gets
807 // called, potentially causing a few asserts to trigger - since no pending exception
808 // is expected.
809 CLEAR_PENDING_EXCEPTION;
810 } else {
811 ResourceMark rm(THREAD);
812 jio_fprintf(defaultStream::error_stream(),
813 ". Uncaught exception of type %s.",
814 ex->klass()->external_name());
815 }
816 }
817 }
818 #ifndef USDT2
819 DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);
820 #else /* USDT2 */
821 HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(
822 );
823 #endif /* USDT2 */
824 JNI_END
825
826
827 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env))
828 JNIWrapper("ExceptionClear");
829 #ifndef USDT2
830 DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);
831 #else /* USDT2 */
832 HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(
833 env);
834 #endif /* USDT2 */
835
836 // The jni code might be using this API to clear java thrown exception.
837 // So just mark jvmti thread exception state as exception caught.
838 JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state();
839 if (state != NULL && state->is_exception_detected()) {
840 state->set_exception_caught();
841 }
842 thread->clear_pending_exception();
843 #ifndef USDT2
844 DTRACE_PROBE(hotspot_jni, ExceptionClear__return);
845 #else /* USDT2 */
846 HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(
847 );
848 #endif /* USDT2 */
849 JNI_END
850
851
852 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg))
853 JNIWrapper("FatalError");
854 #ifndef USDT2
855 DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg);
856 #else /* USDT2 */
857 HOTSPOT_JNI_FATALERROR_ENTRY(
858 env, (char *) msg);
859 #endif /* USDT2 */
860 tty->print_cr("FATAL ERROR in native method: %s", msg);
861 thread->print_stack();
862 os::abort(); // Dump core and abort
863 JNI_END
864
865
866 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity))
867 JNIWrapper("PushLocalFrame");
868 #ifndef USDT2
869 DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity);
870 #else /* USDT2 */
871 HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(
872 env, capacity);
873 #endif /* USDT2 */
874 //%note jni_11
875 if (capacity < 0 ||
876 ((MaxJNILocalCapacity > 0) && (capacity > MaxJNILocalCapacity))) {
877 #ifndef USDT2
878 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);
879 #else /* USDT2 */
880 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
881 (uint32_t)JNI_ERR);
882 #endif /* USDT2 */
883 return JNI_ERR;
884 }
885 JNIHandleBlock* old_handles = thread->active_handles();
886 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
887 assert(new_handles != NULL, "should not be NULL");
888 new_handles->set_pop_frame_link(old_handles);
889 thread->set_active_handles(new_handles);
890 jint ret = JNI_OK;
891 #ifndef USDT2
892 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);
893 #else /* USDT2 */
894 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
895 ret);
896 #endif /* USDT2 */
897 return ret;
898 JNI_END
899
900
901 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result))
902 JNIWrapper("PopLocalFrame");
903 #ifndef USDT2
904 DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result);
905 #else /* USDT2 */
906 HOTSPOT_JNI_POPLOCALFRAME_ENTRY(
907 env, result);
908 #endif /* USDT2 */
909 //%note jni_11
910 Handle result_handle(thread, JNIHandles::resolve(result));
911 JNIHandleBlock* old_handles = thread->active_handles();
912 JNIHandleBlock* new_handles = old_handles->pop_frame_link();
913 if (new_handles != NULL) {
914 // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL.
915 // This way code will still work if PopLocalFrame is called without a corresponding
916 // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise
917 // the release_block call will release the blocks.
918 thread->set_active_handles(new_handles);
919 old_handles->set_pop_frame_link(NULL); // clear link we won't release new_handles below
920 JNIHandleBlock::release_block(old_handles, thread); // may block
921 result = JNIHandles::make_local(thread, result_handle());
922 }
923 #ifndef USDT2
924 DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);
925 #else /* USDT2 */
926 HOTSPOT_JNI_POPLOCALFRAME_RETURN(
927 result);
928 #endif /* USDT2 */
929 return result;
930 JNI_END
931
932
933 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref))
934 JNIWrapper("NewGlobalRef");
935 #ifndef USDT2
936 DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref);
937 #else /* USDT2 */
938 HOTSPOT_JNI_NEWGLOBALREF_ENTRY(
939 env, ref);
940 #endif /* USDT2 */
941 Handle ref_handle(thread, JNIHandles::resolve(ref));
942 jobject ret = JNIHandles::make_global(ref_handle);
943 #ifndef USDT2
944 DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);
945 #else /* USDT2 */
946 HOTSPOT_JNI_NEWGLOBALREF_RETURN(
947 ret);
948 #endif /* USDT2 */
949 return ret;
950 JNI_END
951
952 // Must be JNI_ENTRY (with HandleMark)
953 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref))
954 JNIWrapper("DeleteGlobalRef");
955 #ifndef USDT2
956 DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref);
957 #else /* USDT2 */
958 HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(
959 env, ref);
960 #endif /* USDT2 */
961 JNIHandles::destroy_global(ref);
962 #ifndef USDT2
963 DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);
964 #else /* USDT2 */
965 HOTSPOT_JNI_DELETEGLOBALREF_RETURN(
966 );
967 #endif /* USDT2 */
968 JNI_END
969
970 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj))
971 JNIWrapper("DeleteLocalRef");
972 #ifndef USDT2
973 DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj);
974 #else /* USDT2 */
975 HOTSPOT_JNI_DELETELOCALREF_ENTRY(
976 env, obj);
977 #endif /* USDT2 */
978 JNIHandles::destroy_local(obj);
979 #ifndef USDT2
980 DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);
981 #else /* USDT2 */
982 HOTSPOT_JNI_DELETELOCALREF_RETURN(
983 );
984 #endif /* USDT2 */
985 JNI_END
986
987 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2))
988 JNIWrapper("IsSameObject");
989 #ifndef USDT2
990 DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2);
991 #else /* USDT2 */
992 HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(
993 env, r1, r2);
994 #endif /* USDT2 */
995 oop a = JNIHandles::resolve(r1);
996 oop b = JNIHandles::resolve(r2);
997 jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;
998 #ifndef USDT2
999 DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);
1000 #else /* USDT2 */
1001 HOTSPOT_JNI_ISSAMEOBJECT_RETURN(
1002 ret);
1003 #endif /* USDT2 */
1004 return ret;
1005 JNI_END
1006
1007
1008 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))
1009 JNIWrapper("NewLocalRef");
1010 #ifndef USDT2
1011 DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);
1012 #else /* USDT2 */
1013 HOTSPOT_JNI_NEWLOCALREF_ENTRY(
1014 env, ref);
1015 #endif /* USDT2 */
1016 jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));
1017 #ifndef USDT2
1018 DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);
1019 #else /* USDT2 */
1020 HOTSPOT_JNI_NEWLOCALREF_RETURN(
1021 ret);
1022 #endif /* USDT2 */
1023 return ret;
1024 JNI_END
1025
1026 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))
1027 JNIWrapper("EnsureLocalCapacity");
1028 #ifndef USDT2
1029 DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);
1030 #else /* USDT2 */
1031 HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(
1032 env, capacity);
1033 #endif /* USDT2 */
1034 jint ret;
1035 if (capacity >= 0 &&
1036 ((MaxJNILocalCapacity <= 0) || (capacity <= MaxJNILocalCapacity))) {
1037 ret = JNI_OK;
1038 } else {
1039 ret = JNI_ERR;
1040 }
1041 #ifndef USDT2
1042 DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);
1043 #else /* USDT2 */
1044 HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(
1045 ret);
1046 #endif /* USDT2 */
1047 return ret;
1048 JNI_END
1049
1050 // Return the Handle Type
1051 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))
1052 JNIWrapper("GetObjectRefType");
1053 #ifndef USDT2
1054 DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);
1055 #else /* USDT2 */
1056 HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(
1057 env, obj);
1058 #endif /* USDT2 */
1059 jobjectRefType ret;
1060 if (JNIHandles::is_local_handle(thread, obj) ||
1061 JNIHandles::is_frame_handle(thread, obj))
1062 ret = JNILocalRefType;
1063 else if (JNIHandles::is_global_handle(obj))
1064 ret = JNIGlobalRefType;
1065 else if (JNIHandles::is_weak_global_handle(obj))
1066 ret = JNIWeakGlobalRefType;
1067 else
1068 ret = JNIInvalidRefType;
1069 #ifndef USDT2
1070 DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);
1071 #else /* USDT2 */
1072 HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(
1073 (void *) ret);
1074 #endif /* USDT2 */
1075 return ret;
1076 JNI_END
1077
1078
1079 class JNI_ArgumentPusher : public SignatureIterator {
1080 protected:
1081 JavaCallArguments* _arguments;
1082
1083 virtual void get_bool () = 0;
1084 virtual void get_char () = 0;
1085 virtual void get_short () = 0;
1086 virtual void get_byte () = 0;
1087 virtual void get_int () = 0;
1088 virtual void get_long () = 0;
1089 virtual void get_float () = 0;
1090 virtual void get_double () = 0;
1091 virtual void get_object () = 0;
1092
1093 JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {
1094 this->_return_type = T_ILLEGAL;
1095 _arguments = NULL;
1096 }
1097
1098 public:
1099 virtual void iterate( uint64_t fingerprint ) = 0;
1100
1101 void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }
1102
1103 inline void do_bool() { if (!is_return_type()) get_bool(); }
1104 inline void do_char() { if (!is_return_type()) get_char(); }
1105 inline void do_short() { if (!is_return_type()) get_short(); }
1106 inline void do_byte() { if (!is_return_type()) get_byte(); }
1107 inline void do_int() { if (!is_return_type()) get_int(); }
1108 inline void do_long() { if (!is_return_type()) get_long(); }
1109 inline void do_float() { if (!is_return_type()) get_float(); }
1110 inline void do_double() { if (!is_return_type()) get_double(); }
1111 inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }
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 inline void do_void() { }
1114
1115 JavaCallArguments* arguments() { return _arguments; }
1116 void push_receiver(Handle h) { _arguments->push_oop(h); }
1117 };
1118
1119
1120 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {
1121 protected:
1122 va_list _ap;
1123
1124 inline void get_bool() {
1125 // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and
1126 // 0 to JNI_FALSE. Boolean return values from native are normalized the same in
1127 // TemplateInterpreterGenerator::generate_result_handler_for and
1128 // SharedRuntime::generate_native_wrapper.
1129 jboolean b = va_arg(_ap, jint);
1130 _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));
1131 }
1132 inline void get_char() { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg
1133 inline void get_short() { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg
1134 inline void get_byte() { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg
1135 inline void get_int() { _arguments->push_int(va_arg(_ap, jint)); }
1136
1137 // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests
1138
1139 inline void get_long() { _arguments->push_long(va_arg(_ap, jlong)); }
1140 inline void get_float() { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg
1141 inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }
1142 inline void get_object() { jobject l = va_arg(_ap, jobject);
1143 _arguments->push_oop(Handle((oop *)l, false)); }
1144
1145 inline void set_ap(va_list rap) {
1146 #ifdef va_copy
1147 va_copy(_ap, rap);
1148 #elif defined (__va_copy)
1149 __va_copy(_ap, rap);
1150 #else
1151 _ap = rap;
1152 #endif
1153 }
1154
1155 public:
1156 JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)
1157 : JNI_ArgumentPusher(signature) {
1158 set_ap(rap);
1159 }
1160 JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)
1161 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1162 set_ap(rap);
1163 }
1164
1165 // Optimized path if we have the bitvector form of signature
1166 void iterate( uint64_t fingerprint ) {
1167 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments
1168 else {
1169 _return_type = (BasicType)((fingerprint >> static_feature_size) &
1170 result_feature_mask);
1171
1172 assert(fingerprint, "Fingerprint should not be 0");
1173 fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1174 while ( 1 ) {
1175 switch ( fingerprint & parameter_feature_mask ) {
1176 case bool_parm:
1177 get_bool();
1178 break;
1179 case char_parm:
1180 get_char();
1181 break;
1182 case short_parm:
1183 get_short();
1184 break;
1185 case byte_parm:
1186 get_byte();
1187 break;
1188 case int_parm:
1189 get_int();
1190 break;
1191 case obj_parm:
1192 get_object();
1193 break;
1194 case long_parm:
1195 get_long();
1196 break;
1197 case float_parm:
1198 get_float();
1199 break;
1200 case double_parm:
1201 get_double();
1202 break;
1203 case done_parm:
1204 return;
1205 break;
1206 default:
1207 ShouldNotReachHere();
1208 break;
1209 }
1210 fingerprint >>= parameter_feature_size;
1211 }
1212 }
1213 }
1214 };
1215
1216
1217 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {
1218 protected:
1219 const jvalue *_ap;
1220
1221 inline void get_bool() {
1222 // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and
1223 // 0 to JNI_FALSE. Boolean return values from native are normalized the same in
1224 // TemplateInterpreterGenerator::generate_result_handler_for and
1225 // SharedRuntime::generate_native_wrapper.
1226 jboolean b = (_ap++)->z;
1227 _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));
1228 }
1229 inline void get_char() { _arguments->push_int((jint)(_ap++)->c); }
1230 inline void get_short() { _arguments->push_int((jint)(_ap++)->s); }
1231 inline void get_byte() { _arguments->push_int((jint)(_ap++)->b); }
1232 inline void get_int() { _arguments->push_int((jint)(_ap++)->i); }
1233
1234 inline void get_long() { _arguments->push_long((_ap++)->j); }
1235 inline void get_float() { _arguments->push_float((_ap++)->f); }
1236 inline void get_double() { _arguments->push_double((_ap++)->d);}
1237 inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }
1238
1239 inline void set_ap(const jvalue *rap) { _ap = rap; }
1240
1241 public:
1242 JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)
1243 : JNI_ArgumentPusher(signature) {
1244 set_ap(rap);
1245 }
1246 JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)
1247 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1248 set_ap(rap);
1249 }
1250
1251 // Optimized path if we have the bitvector form of signature
1252 void iterate( uint64_t fingerprint ) {
1253 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments
1254 else {
1255 _return_type = (BasicType)((fingerprint >> static_feature_size) &
1256 result_feature_mask);
1257 assert(fingerprint, "Fingerprint should not be 0");
1258 fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1259 while ( 1 ) {
1260 switch ( fingerprint & parameter_feature_mask ) {
1261 case bool_parm:
1262 get_bool();
1263 break;
1264 case char_parm:
1265 get_char();
1266 break;
1267 case short_parm:
1268 get_short();
1269 break;
1270 case byte_parm:
1271 get_byte();
1272 break;
1273 case int_parm:
1274 get_int();
1275 break;
1276 case obj_parm:
1277 get_object();
1278 break;
1279 case long_parm:
1280 get_long();
1281 break;
1282 case float_parm:
1283 get_float();
1284 break;
1285 case double_parm:
1286 get_double();
1287 break;
1288 case done_parm:
1289 return;
1290 break;
1291 default:
1292 ShouldNotReachHere();
1293 break;
1294 }
1295 fingerprint >>= parameter_feature_size;
1296 }
1297 }
1298 }
1299 };
1300
1301
1302 enum JNICallType {
1303 JNI_STATIC,
1304 JNI_VIRTUAL,
1305 JNI_NONVIRTUAL
1306 };
1307
1308
1309
1310 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1311 methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));
1312
1313 // Create object to hold arguments for the JavaCall, and associate it with
1314 // the jni parser
1315 ResourceMark rm(THREAD);
1316 int number_of_parameters = method->size_of_parameters();
1317 JavaCallArguments java_args(number_of_parameters);
1318 args->set_java_argument_object(&java_args);
1319
1320 assert(method->is_static(), "method should be static");
1321
1322 // Fill out JavaCallArguments object
1323 args->iterate( Fingerprinter(method).fingerprint() );
1324 // Initialize result type
1325 result->set_type(args->get_ret_type());
1326
1327 // Invoke the method. Result is returned as oop.
1328 JavaCalls::call(result, method, &java_args, CHECK);
1329
1330 // Convert result
1331 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1332 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1333 }
1334 }
1335
1336
1337 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1338 oop recv = JNIHandles::resolve(receiver);
1339 if (recv == NULL) {
1340 THROW(vmSymbols::java_lang_NullPointerException());
1341 }
1342 Handle h_recv(THREAD, recv);
1343
1344 int number_of_parameters;
1345 Method* selected_method;
1346 {
1347 Method* m = Method::resolve_jmethod_id(method_id);
1348 number_of_parameters = m->size_of_parameters();
1349 Klass* holder = m->method_holder();
1350 if (call_type != JNI_VIRTUAL) {
1351 selected_method = m;
1352 } else if (!m->has_itable_index()) {
1353 // non-interface call -- for that little speed boost, don't handlize
1354 debug_only(No_Safepoint_Verifier nosafepoint;)
1355 // jni_GetMethodID makes sure class is linked and initialized
1356 // so m should have a valid vtable index.
1357 assert(m->valid_vtable_index(), "no valid vtable index");
1358 int vtbl_index = m->vtable_index();
1359 if (vtbl_index != Method::nonvirtual_vtable_index) {
1360 Klass* k = h_recv->klass();
1361 // k might be an arrayKlassOop but all vtables start at
1362 // the same place. The cast is to avoid virtual call and assertion.
1363 InstanceKlass *ik = (InstanceKlass*)k;
1364 selected_method = ik->method_at_vtable(vtbl_index);
1365 } else {
1366 // final method
1367 selected_method = m;
1368 }
1369 } else {
1370 // interface call
1371 KlassHandle h_holder(THREAD, holder);
1372
1373 int itbl_index = m->itable_index();
1374 Klass* k = h_recv->klass();
1375 selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);
1376 }
1377 }
1378
1379 methodHandle method(THREAD, selected_method);
1380
1381 // Create object to hold arguments for the JavaCall, and associate it with
1382 // the jni parser
1383 ResourceMark rm(THREAD);
1384 JavaCallArguments java_args(number_of_parameters);
1385 args->set_java_argument_object(&java_args);
1386
1387 // handle arguments
1388 assert(!method->is_static(), "method should not be static");
1389 args->push_receiver(h_recv); // Push jobject handle
1390
1391 // Fill out JavaCallArguments object
1392 args->iterate( Fingerprinter(method).fingerprint() );
1393 // Initialize result type
1394 result->set_type(args->get_ret_type());
1395
1396 // Invoke the method. Result is returned as oop.
1397 JavaCalls::call(result, method, &java_args, CHECK);
1398
1399 // Convert result
1400 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1401 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1402 }
1403 }
1404
1405
1406 static instanceOop alloc_object(jclass clazz, TRAPS) {
1407 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1408 k()->check_valid_for_instantiation(false, CHECK_NULL);
1409 InstanceKlass::cast(k())->initialize(CHECK_NULL);
1410 instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);
1411 return ih;
1412 }
1413
1414 #ifndef USDT2
1415 DT_RETURN_MARK_DECL(AllocObject, jobject);
1416 #else /* USDT2 */
1417 DT_RETURN_MARK_DECL(AllocObject, jobject
1418 , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));
1419 #endif /* USDT2 */
1420
1421 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))
1422 JNIWrapper("AllocObject");
1423
1424 #ifndef USDT2
1425 DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);
1426 #else /* USDT2 */
1427 HOTSPOT_JNI_ALLOCOBJECT_ENTRY(
1428 env, clazz);
1429 #endif /* USDT2 */
1430 jobject ret = NULL;
1431 DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);
1432
1433 instanceOop i = alloc_object(clazz, CHECK_NULL);
1434 ret = JNIHandles::make_local(env, i);
1435 return ret;
1436 JNI_END
1437
1438 #ifndef USDT2
1439 DT_RETURN_MARK_DECL(NewObjectA, jobject);
1440 #else /* USDT2 */
1441 DT_RETURN_MARK_DECL(NewObjectA, jobject
1442 , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));
1443 #endif /* USDT2 */
1444
1445 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))
1446 JNIWrapper("NewObjectA");
1447 #ifndef USDT2
1448 DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);
1449 #else /* USDT2 */
1450 HOTSPOT_JNI_NEWOBJECTA_ENTRY(
1451 env, clazz, (uintptr_t) methodID);
1452 #endif /* USDT2 */
1453 jobject obj = NULL;
1454 DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);
1455
1456 instanceOop i = alloc_object(clazz, CHECK_NULL);
1457 obj = JNIHandles::make_local(env, i);
1458 JavaValue jvalue(T_VOID);
1459 JNI_ArgumentPusherArray ap(methodID, args);
1460 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1461 return obj;
1462 JNI_END
1463
1464 #ifndef USDT2
1465 DT_RETURN_MARK_DECL(NewObjectV, jobject);
1466 #else /* USDT2 */
1467 DT_RETURN_MARK_DECL(NewObjectV, jobject
1468 , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));
1469 #endif /* USDT2 */
1470
1471 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))
1472 JNIWrapper("NewObjectV");
1473 #ifndef USDT2
1474 DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);
1475 #else /* USDT2 */
1476 HOTSPOT_JNI_NEWOBJECTV_ENTRY(
1477 env, clazz, (uintptr_t) methodID);
1478 #endif /* USDT2 */
1479 jobject obj = NULL;
1480 DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);
1481
1482 instanceOop i = alloc_object(clazz, CHECK_NULL);
1483 obj = JNIHandles::make_local(env, i);
1484 JavaValue jvalue(T_VOID);
1485 JNI_ArgumentPusherVaArg ap(methodID, args);
1486 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1487 return obj;
1488 JNI_END
1489
1490 #ifndef USDT2
1491 DT_RETURN_MARK_DECL(NewObject, jobject);
1492 #else /* USDT2 */
1493 DT_RETURN_MARK_DECL(NewObject, jobject
1494 , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));
1495 #endif /* USDT2 */
1496
1497 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))
1498 JNIWrapper("NewObject");
1499 #ifndef USDT2
1500 DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);
1501 #else /* USDT2 */
1502 HOTSPOT_JNI_NEWOBJECT_ENTRY(
1503 env, clazz, (uintptr_t) methodID);
1504 #endif /* USDT2 */
1505 jobject obj = NULL;
1506 DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);
1507
1508 instanceOop i = alloc_object(clazz, CHECK_NULL);
1509 obj = JNIHandles::make_local(env, i);
1510 va_list args;
1511 va_start(args, methodID);
1512 JavaValue jvalue(T_VOID);
1513 JNI_ArgumentPusherVaArg ap(methodID, args);
1514 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1515 va_end(args);
1516 return obj;
1517 JNI_END
1518
1519
1520 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))
1521 JNIWrapper("GetObjectClass");
1522 #ifndef USDT2
1523 DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);
1524 #else /* USDT2 */
1525 HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(
1526 env, obj);
1527 #endif /* USDT2 */
1528 Klass* k = JNIHandles::resolve_non_null(obj)->klass();
1529 jclass ret =
1530 (jclass) JNIHandles::make_local(env, k->java_mirror());
1531 #ifndef USDT2
1532 DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);
1533 #else /* USDT2 */
1534 HOTSPOT_JNI_GETOBJECTCLASS_RETURN(
1535 ret);
1536 #endif /* USDT2 */
1537 return ret;
1538 JNI_END
1539
1540 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))
1541 JNIWrapper("IsInstanceOf");
1542 #ifndef USDT2
1543 DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);
1544 #else /* USDT2 */
1545 HOTSPOT_JNI_ISINSTANCEOF_ENTRY(
1546 env, obj, clazz);
1547 #endif /* USDT2 */
1548 jboolean ret = JNI_TRUE;
1549 if (obj != NULL) {
1550 ret = JNI_FALSE;
1551 Klass* k = java_lang_Class::as_Klass(
1552 JNIHandles::resolve_non_null(clazz));
1553 if (k != NULL) {
1554 ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;
1555 }
1556 }
1557 #ifndef USDT2
1558 DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);
1559 #else /* USDT2 */
1560 HOTSPOT_JNI_ISINSTANCEOF_RETURN(
1561 ret);
1562 #endif /* USDT2 */
1563 return ret;
1564 JNI_END
1565
1566
1567 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,
1568 const char *sig, bool is_static, TRAPS) {
1569 // %%%% This code should probably just call into a method in the LinkResolver
1570 //
1571 // The class should have been loaded (we have an instance of the class
1572 // passed in) so the method and signature should already be in the symbol
1573 // table. If they're not there, the method doesn't exist.
1574 const char *name_to_probe = (name_str == NULL)
1575 ? vmSymbols::object_initializer_name()->as_C_string()
1576 : name_str;
1577 TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));
1578 TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));
1579
1580 if (name == NULL || signature == NULL) {
1581 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1582 }
1583
1584 // Throw a NoSuchMethodError exception if we have an instance of a
1585 // primitive java.lang.Class
1586 if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {
1587 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1588 }
1589
1590 KlassHandle klass(THREAD,
1591 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1592
1593 // Make sure class is linked and initialized before handing id's out to
1594 // Method*s.
1595 klass()->initialize(CHECK_NULL);
1596
1597 Method* m;
1598 if (name == vmSymbols::object_initializer_name() ||
1599 name == vmSymbols::class_initializer_name()) {
1600 // Never search superclasses for constructors
1601 if (klass->oop_is_instance()) {
1602 m = InstanceKlass::cast(klass())->find_method(name, signature);
1603 } else {
1604 m = NULL;
1605 }
1606 } else {
1607 m = klass->lookup_method(name, signature);
1608 if (m == NULL && klass->oop_is_instance()) {
1609 m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);
1610 }
1611 }
1612 if (m == NULL || (m->is_static() != is_static)) {
1613 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1614 }
1615 return m->jmethod_id();
1616 }
1617
1618
1619 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,
1620 const char *name, const char *sig))
1621 JNIWrapper("GetMethodID");
1622 #ifndef USDT2
1623 DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);
1624 #else /* USDT2 */
1625 HOTSPOT_JNI_GETMETHODID_ENTRY(
1626 env, clazz, (char *) name, (char *) sig);
1627 #endif /* USDT2 */
1628 jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);
1629 #ifndef USDT2
1630 DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);
1631 #else /* USDT2 */
1632 HOTSPOT_JNI_GETMETHODID_RETURN(
1633 (uintptr_t) ret);
1634 #endif /* USDT2 */
1635 return ret;
1636 JNI_END
1637
1638
1639 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,
1640 const char *name, const char *sig))
1641 JNIWrapper("GetStaticMethodID");
1642 #ifndef USDT2
1643 DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);
1644 #else /* USDT2 */
1645 HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(
1646 env, (char *) clazz, (char *) name, (char *)sig);
1647 #endif /* USDT2 */
1648 jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);
1649 #ifndef USDT2
1650 DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);
1651 #else /* USDT2 */
1652 HOTSPOT_JNI_GETSTATICMETHODID_RETURN(
1653 (uintptr_t) ret);
1654 #endif /* USDT2 */
1655 return ret;
1656 JNI_END
1657
1658
1659
1660 //
1661 // Calling Methods
1662 //
1663
1664 #ifndef USDT2
1665 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \
1666 \
1667 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\
1668 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\
1669 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\
1670 \
1671 JNI_ENTRY(ResultType, \
1672 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1673 JNIWrapper("Call" XSTR(Result) "Method"); \
1674 \
1675 DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \
1676 ResultType ret = 0;\
1677 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1678 (const ResultType&)ret);\
1679 \
1680 va_list args; \
1681 va_start(args, methodID); \
1682 JavaValue jvalue(Tag); \
1683 JNI_ArgumentPusherVaArg ap(methodID, args); \
1684 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1685 va_end(args); \
1686 ret = jvalue.get_##ResultType(); \
1687 return ret;\
1688 JNI_END \
1689 \
1690 \
1691 JNI_ENTRY(ResultType, \
1692 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1693 JNIWrapper("Call" XSTR(Result) "MethodV"); \
1694 \
1695 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \
1696 ResultType ret = 0;\
1697 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1698 (const ResultType&)ret);\
1699 \
1700 JavaValue jvalue(Tag); \
1701 JNI_ArgumentPusherVaArg ap(methodID, args); \
1702 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1703 ret = jvalue.get_##ResultType(); \
1704 return ret;\
1705 JNI_END \
1706 \
1707 \
1708 JNI_ENTRY(ResultType, \
1709 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1710 JNIWrapper("Call" XSTR(Result) "MethodA"); \
1711 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \
1712 ResultType ret = 0;\
1713 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1714 (const ResultType&)ret);\
1715 \
1716 JavaValue jvalue(Tag); \
1717 JNI_ArgumentPusherArray ap(methodID, args); \
1718 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1719 ret = jvalue.get_##ResultType(); \
1720 return ret;\
1721 JNI_END
1722
1723 // the runtime type of subword integral basic types is integer
1724 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)
1725 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE)
1726 DEFINE_CALLMETHOD(jchar, Char, T_CHAR)
1727 DEFINE_CALLMETHOD(jshort, Short, T_SHORT)
1728
1729 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT)
1730 DEFINE_CALLMETHOD(jint, Int, T_INT)
1731 DEFINE_CALLMETHOD(jlong, Long, T_LONG)
1732 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT)
1733 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE)
1734
1735 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);
1736 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);
1737 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);
1738
1739 #else /* USDT2 */
1740
1741 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \
1742 , EntryProbe, ReturnProbe) \
1743 \
1744 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \
1745 , ReturnProbe); \
1746 \
1747 JNI_ENTRY(ResultType, \
1748 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1749 JNIWrapper("Call" XSTR(Result) "Method"); \
1750 \
1751 EntryProbe; \
1752 ResultType ret = 0;\
1753 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1754 (const ResultType&)ret);\
1755 \
1756 va_list args; \
1757 va_start(args, methodID); \
1758 JavaValue jvalue(Tag); \
1759 JNI_ArgumentPusherVaArg ap(methodID, args); \
1760 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1761 va_end(args); \
1762 ret = jvalue.get_##ResultType(); \
1763 return ret;\
1764 JNI_END
1765
1766 // the runtime type of subword integral basic types is integer
1767 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN
1768 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1769 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))
1770 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE
1771 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1772 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))
1773 DEFINE_CALLMETHOD(jchar, Char, T_CHAR
1774 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1775 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))
1776 DEFINE_CALLMETHOD(jshort, Short, T_SHORT
1777 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1778 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))
1779
1780 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT
1781 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1782 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))
1783 DEFINE_CALLMETHOD(jint, Int, T_INT,
1784 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1785 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))
1786 DEFINE_CALLMETHOD(jlong, Long, T_LONG
1787 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1788 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))
1789 // Float and double probes don't return value because dtrace doesn't currently support it
1790 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT
1791 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1792 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())
1793 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE
1794 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1795 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())
1796
1797 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \
1798 , EntryProbe, ReturnProbe) \
1799 \
1800 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \
1801 , ReturnProbe); \
1802 \
1803 JNI_ENTRY(ResultType, \
1804 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1805 JNIWrapper("Call" XSTR(Result) "MethodV"); \
1806 \
1807 EntryProbe;\
1808 ResultType ret = 0;\
1809 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1810 (const ResultType&)ret);\
1811 \
1812 JavaValue jvalue(Tag); \
1813 JNI_ArgumentPusherVaArg ap(methodID, args); \
1814 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1815 ret = jvalue.get_##ResultType(); \
1816 return ret;\
1817 JNI_END
1818
1819 // the runtime type of subword integral basic types is integer
1820 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN
1821 , HOTSPOT_JNI_CALLBOOLEANMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1822 HOTSPOT_JNI_CALLBOOLEANMETHODV_RETURN(_ret_ref))
1823 DEFINE_CALLMETHODV(jbyte, Byte, T_BYTE
1824 , HOTSPOT_JNI_CALLBYTEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1825 HOTSPOT_JNI_CALLBYTEMETHODV_RETURN(_ret_ref))
1826 DEFINE_CALLMETHODV(jchar, Char, T_CHAR
1827 , HOTSPOT_JNI_CALLCHARMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1828 HOTSPOT_JNI_CALLCHARMETHODV_RETURN(_ret_ref))
1829 DEFINE_CALLMETHODV(jshort, Short, T_SHORT
1830 , HOTSPOT_JNI_CALLSHORTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1831 HOTSPOT_JNI_CALLSHORTMETHODV_RETURN(_ret_ref))
1832
1833 DEFINE_CALLMETHODV(jobject, Object, T_OBJECT
1834 , HOTSPOT_JNI_CALLOBJECTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1835 HOTSPOT_JNI_CALLOBJECTMETHODV_RETURN(_ret_ref))
1836 DEFINE_CALLMETHODV(jint, Int, T_INT,
1837 HOTSPOT_JNI_CALLINTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1838 HOTSPOT_JNI_CALLINTMETHODV_RETURN(_ret_ref))
1839 DEFINE_CALLMETHODV(jlong, Long, T_LONG
1840 , HOTSPOT_JNI_CALLLONGMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1841 HOTSPOT_JNI_CALLLONGMETHODV_RETURN(_ret_ref))
1842 // Float and double probes don't return value because dtrace doesn't currently support it
1843 DEFINE_CALLMETHODV(jfloat, Float, T_FLOAT
1844 , HOTSPOT_JNI_CALLFLOATMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1845 HOTSPOT_JNI_CALLFLOATMETHODV_RETURN())
1846 DEFINE_CALLMETHODV(jdouble, Double, T_DOUBLE
1847 , HOTSPOT_JNI_CALLDOUBLEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1848 HOTSPOT_JNI_CALLDOUBLEMETHODV_RETURN())
1849
1850 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \
1851 , EntryProbe, ReturnProbe) \
1852 \
1853 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \
1854 , ReturnProbe); \
1855 \
1856 JNI_ENTRY(ResultType, \
1857 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1858 JNIWrapper("Call" XSTR(Result) "MethodA"); \
1859 EntryProbe; \
1860 ResultType ret = 0;\
1861 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1862 (const ResultType&)ret);\
1863 \
1864 JavaValue jvalue(Tag); \
1865 JNI_ArgumentPusherArray ap(methodID, args); \
1866 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1867 ret = jvalue.get_##ResultType(); \
1868 return ret;\
1869 JNI_END
1870
1871 // the runtime type of subword integral basic types is integer
1872 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN
1873 , HOTSPOT_JNI_CALLBOOLEANMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1874 HOTSPOT_JNI_CALLBOOLEANMETHODA_RETURN(_ret_ref))
1875 DEFINE_CALLMETHODA(jbyte, Byte, T_BYTE
1876 , HOTSPOT_JNI_CALLBYTEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1877 HOTSPOT_JNI_CALLBYTEMETHODA_RETURN(_ret_ref))
1878 DEFINE_CALLMETHODA(jchar, Char, T_CHAR
1879 , HOTSPOT_JNI_CALLCHARMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1880 HOTSPOT_JNI_CALLCHARMETHODA_RETURN(_ret_ref))
1881 DEFINE_CALLMETHODA(jshort, Short, T_SHORT
1882 , HOTSPOT_JNI_CALLSHORTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1883 HOTSPOT_JNI_CALLSHORTMETHODA_RETURN(_ret_ref))
1884
1885 DEFINE_CALLMETHODA(jobject, Object, T_OBJECT
1886 , HOTSPOT_JNI_CALLOBJECTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1887 HOTSPOT_JNI_CALLOBJECTMETHODA_RETURN(_ret_ref))
1888 DEFINE_CALLMETHODA(jint, Int, T_INT,
1889 HOTSPOT_JNI_CALLINTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1890 HOTSPOT_JNI_CALLINTMETHODA_RETURN(_ret_ref))
1891 DEFINE_CALLMETHODA(jlong, Long, T_LONG
1892 , HOTSPOT_JNI_CALLLONGMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1893 HOTSPOT_JNI_CALLLONGMETHODA_RETURN(_ret_ref))
1894 // Float and double probes don't return value because dtrace doesn't currently support it
1895 DEFINE_CALLMETHODA(jfloat, Float, T_FLOAT
1896 , HOTSPOT_JNI_CALLFLOATMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1897 HOTSPOT_JNI_CALLFLOATMETHODA_RETURN())
1898 DEFINE_CALLMETHODA(jdouble, Double, T_DOUBLE
1899 , HOTSPOT_JNI_CALLDOUBLEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1900 HOTSPOT_JNI_CALLDOUBLEMETHODA_RETURN())
1901
1902 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());
1903 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());
1904 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());
1905
1906 #endif /* USDT2 */
1907
1908 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))
1909 JNIWrapper("CallVoidMethod");
1910 #ifndef USDT2
1911 DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);
1912 #else /* USDT2 */
1913 HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(
1914 env, obj, (uintptr_t) methodID);
1915 #endif /* USDT2 */
1916 DT_VOID_RETURN_MARK(CallVoidMethod);
1917
1918 va_list args;
1919 va_start(args, methodID);
1920 JavaValue jvalue(T_VOID);
1921 JNI_ArgumentPusherVaArg ap(methodID, args);
1922 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1923 va_end(args);
1924 JNI_END
1925
1926
1927 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))
1928 JNIWrapper("CallVoidMethodV");
1929 #ifndef USDT2
1930 DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);
1931 #else /* USDT2 */
1932 HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(
1933 env, obj, (uintptr_t) methodID);
1934 #endif /* USDT2 */
1935 DT_VOID_RETURN_MARK(CallVoidMethodV);
1936
1937 JavaValue jvalue(T_VOID);
1938 JNI_ArgumentPusherVaArg ap(methodID, args);
1939 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1940 JNI_END
1941
1942
1943 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))
1944 JNIWrapper("CallVoidMethodA");
1945 #ifndef USDT2
1946 DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);
1947 #else /* USDT2 */
1948 HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(
1949 env, obj, (uintptr_t) methodID);
1950 #endif /* USDT2 */
1951 DT_VOID_RETURN_MARK(CallVoidMethodA);
1952
1953 JavaValue jvalue(T_VOID);
1954 JNI_ArgumentPusherArray ap(methodID, args);
1955 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1956 JNI_END
1957
1958
1959 #ifndef USDT2
1960 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \
1961 \
1962 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\
1963 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\
1964 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\
1965 \
1966 JNI_ENTRY(ResultType, \
1967 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
1968 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
1969 \
1970 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\
1971 ResultType ret;\
1972 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
1973 (const ResultType&)ret);\
1974 \
1975 va_list args; \
1976 va_start(args, methodID); \
1977 JavaValue jvalue(Tag); \
1978 JNI_ArgumentPusherVaArg ap(methodID, args); \
1979 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1980 va_end(args); \
1981 ret = jvalue.get_##ResultType(); \
1982 return ret;\
1983 JNI_END \
1984 \
1985 JNI_ENTRY(ResultType, \
1986 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
1987 JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \
1988 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\
1989 ResultType ret;\
1990 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
1991 (const ResultType&)ret);\
1992 \
1993 JavaValue jvalue(Tag); \
1994 JNI_ArgumentPusherVaArg ap(methodID, args); \
1995 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1996 ret = jvalue.get_##ResultType(); \
1997 return ret;\
1998 JNI_END \
1999 \
2000 JNI_ENTRY(ResultType, \
2001 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2002 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2003 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\
2004 ResultType ret;\
2005 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2006 (const ResultType&)ret);\
2007 \
2008 JavaValue jvalue(Tag); \
2009 JNI_ArgumentPusherArray ap(methodID, args); \
2010 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2011 ret = jvalue.get_##ResultType(); \
2012 return ret;\
2013 JNI_END
2014
2015 // the runtime type of subword integral basic types is integer
2016 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)
2017 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE)
2018 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR)
2019 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT)
2020
2021 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT)
2022 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT)
2023 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG)
2024 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT)
2025 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE)
2026
2027
2028 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);
2029 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);
2030 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);
2031
2032 #else /* USDT2 */
2033
2034 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \
2035 , EntryProbe, ReturnProbe) \
2036 \
2037 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \
2038 , ReturnProbe);\
2039 \
2040 JNI_ENTRY(ResultType, \
2041 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
2042 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
2043 \
2044 EntryProbe;\
2045 ResultType ret;\
2046 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
2047 (const ResultType&)ret);\
2048 \
2049 va_list args; \
2050 va_start(args, methodID); \
2051 JavaValue jvalue(Tag); \
2052 JNI_ArgumentPusherVaArg ap(methodID, args); \
2053 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2054 va_end(args); \
2055 ret = jvalue.get_##ResultType(); \
2056 return ret;\
2057 JNI_END
2058
2059 // the runtime type of subword integral basic types is integer
2060 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN
2061 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2062 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))
2063 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE
2064 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2065 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))
2066 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR
2067 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2068 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))
2069 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT
2070 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2071 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))
2072
2073 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT
2074 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2075 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))
2076 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT
2077 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2078 HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))
2079 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG
2080 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2081 // Float and double probes don't return value because dtrace doesn't currently support it
2082 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))
2083 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT
2084 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2085 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())
2086 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE
2087 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2088 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())
2089
2090 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \
2091 , EntryProbe, ReturnProbe) \
2092 \
2093 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \
2094 , ReturnProbe);\
2095 \
2096 JNI_ENTRY(ResultType, \
2097 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
2098 JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \
2099 \
2100 EntryProbe;\
2101 ResultType ret;\
2102 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
2103 (const ResultType&)ret);\
2104 \
2105 JavaValue jvalue(Tag); \
2106 JNI_ArgumentPusherVaArg ap(methodID, args); \
2107 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2108 ret = jvalue.get_##ResultType(); \
2109 return ret;\
2110 JNI_END
2111
2112 // the runtime type of subword integral basic types is integer
2113 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN
2114 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2115 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))
2116 DEFINE_CALLNONVIRTUALMETHODV(jbyte, Byte, T_BYTE
2117 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2118 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))
2119 DEFINE_CALLNONVIRTUALMETHODV(jchar, Char, T_CHAR
2120 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2121 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))
2122 DEFINE_CALLNONVIRTUALMETHODV(jshort, Short, T_SHORT
2123 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2124 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))
2125
2126 DEFINE_CALLNONVIRTUALMETHODV(jobject, Object, T_OBJECT
2127 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2128 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))
2129 DEFINE_CALLNONVIRTUALMETHODV(jint, Int, T_INT
2130 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2131 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))
2132 DEFINE_CALLNONVIRTUALMETHODV(jlong, Long, T_LONG
2133 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2134 // Float and double probes don't return value because dtrace doesn't currently support it
2135 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))
2136 DEFINE_CALLNONVIRTUALMETHODV(jfloat, Float, T_FLOAT
2137 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2138 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())
2139 DEFINE_CALLNONVIRTUALMETHODV(jdouble, Double, T_DOUBLE
2140 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2141 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())
2142
2143 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \
2144 , EntryProbe, ReturnProbe) \
2145 \
2146 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \
2147 , ReturnProbe);\
2148 \
2149 JNI_ENTRY(ResultType, \
2150 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2151 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2152 \
2153 EntryProbe;\
2154 ResultType ret;\
2155 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2156 (const ResultType&)ret);\
2157 \
2158 JavaValue jvalue(Tag); \
2159 JNI_ArgumentPusherArray ap(methodID, args); \
2160 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2161 ret = jvalue.get_##ResultType(); \
2162 return ret;\
2163 JNI_END
2164
2165 // the runtime type of subword integral basic types is integer
2166 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN
2167 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2168 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))
2169 DEFINE_CALLNONVIRTUALMETHODA(jbyte, Byte, T_BYTE
2170 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2171 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))
2172 DEFINE_CALLNONVIRTUALMETHODA(jchar, Char, T_CHAR
2173 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2174 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))
2175 DEFINE_CALLNONVIRTUALMETHODA(jshort, Short, T_SHORT
2176 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2177 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))
2178
2179 DEFINE_CALLNONVIRTUALMETHODA(jobject, Object, T_OBJECT
2180 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2181 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))
2182 DEFINE_CALLNONVIRTUALMETHODA(jint, Int, T_INT
2183 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2184 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))
2185 DEFINE_CALLNONVIRTUALMETHODA(jlong, Long, T_LONG
2186 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2187 // Float and double probes don't return value because dtrace doesn't currently support it
2188 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))
2189 DEFINE_CALLNONVIRTUALMETHODA(jfloat, Float, T_FLOAT
2190 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2191 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())
2192 DEFINE_CALLNONVIRTUALMETHODA(jdouble, Double, T_DOUBLE
2193 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2194 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())
2195
2196 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod
2197 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());
2198 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV
2199 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());
2200 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA
2201 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());
2202 #endif /* USDT2 */
2203
2204 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))
2205 JNIWrapper("CallNonvirtualVoidMethod");
2206
2207 #ifndef USDT2
2208 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,
2209 env, obj, cls, methodID);
2210 #else /* USDT2 */
2211 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(
2212 env, obj, cls, (uintptr_t) methodID);
2213 #endif /* USDT2 */
2214 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);
2215
2216 va_list args;
2217 va_start(args, methodID);
2218 JavaValue jvalue(T_VOID);
2219 JNI_ArgumentPusherVaArg ap(methodID, args);
2220 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2221 va_end(args);
2222 JNI_END
2223
2224
2225 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))
2226 JNIWrapper("CallNonvirtualVoidMethodV");
2227
2228 #ifndef USDT2
2229 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,
2230 env, obj, cls, methodID);
2231 #else /* USDT2 */
2232 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(
2233 env, obj, cls, (uintptr_t) methodID);
2234 #endif /* USDT2 */
2235 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);
2236
2237 JavaValue jvalue(T_VOID);
2238 JNI_ArgumentPusherVaArg ap(methodID, args);
2239 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2240 JNI_END
2241
2242
2243 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))
2244 JNIWrapper("CallNonvirtualVoidMethodA");
2245 #ifndef USDT2
2246 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,
2247 env, obj, cls, methodID);
2248 #else /* USDT2 */
2249 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(
2250 env, obj, cls, (uintptr_t) methodID);
2251 #endif /* USDT2 */
2252 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);
2253 JavaValue jvalue(T_VOID);
2254 JNI_ArgumentPusherArray ap(methodID, args);
2255 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2256 JNI_END
2257
2258
2259 #ifndef USDT2
2260 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \
2261 \
2262 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\
2263 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\
2264 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\
2265 \
2266 JNI_ENTRY(ResultType, \
2267 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2268 JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2269 \
2270 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\
2271 ResultType ret = 0;\
2272 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2273 (const ResultType&)ret);\
2274 \
2275 va_list args; \
2276 va_start(args, methodID); \
2277 JavaValue jvalue(Tag); \
2278 JNI_ArgumentPusherVaArg ap(methodID, args); \
2279 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2280 va_end(args); \
2281 ret = jvalue.get_##ResultType(); \
2282 return ret;\
2283 JNI_END \
2284 \
2285 JNI_ENTRY(ResultType, \
2286 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2287 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2288 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\
2289 ResultType ret = 0;\
2290 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2291 (const ResultType&)ret);\
2292 \
2293 JavaValue jvalue(Tag); \
2294 JNI_ArgumentPusherVaArg ap(methodID, args); \
2295 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2296 ret = jvalue.get_##ResultType(); \
2297 return ret;\
2298 JNI_END \
2299 \
2300 JNI_ENTRY(ResultType, \
2301 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2302 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2303 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\
2304 ResultType ret = 0;\
2305 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2306 (const ResultType&)ret);\
2307 \
2308 JavaValue jvalue(Tag); \
2309 JNI_ArgumentPusherArray ap(methodID, args); \
2310 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2311 ret = jvalue.get_##ResultType(); \
2312 return ret;\
2313 JNI_END
2314
2315 // the runtime type of subword integral basic types is integer
2316 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)
2317 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE)
2318 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR)
2319 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT)
2320
2321 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT)
2322 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT)
2323 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG)
2324 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT)
2325 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE)
2326
2327
2328 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);
2329 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);
2330 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);
2331
2332 #else /* USDT2 */
2333
2334 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \
2335 , EntryProbe, ResultProbe) \
2336 \
2337 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \
2338 , ResultProbe); \
2339 \
2340 JNI_ENTRY(ResultType, \
2341 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2342 JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2343 \
2344 EntryProbe; \
2345 ResultType ret = 0;\
2346 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2347 (const ResultType&)ret);\
2348 \
2349 va_list args; \
2350 va_start(args, methodID); \
2351 JavaValue jvalue(Tag); \
2352 JNI_ArgumentPusherVaArg ap(methodID, args); \
2353 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2354 va_end(args); \
2355 ret = jvalue.get_##ResultType(); \
2356 return ret;\
2357 JNI_END
2358
2359 // the runtime type of subword integral basic types is integer
2360 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN
2361 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2362 HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));
2363 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE
2364 , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2365 HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));
2366 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR
2367 , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2368 HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));
2369 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT
2370 , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2371 HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));
2372
2373 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT
2374 , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2375 HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));
2376 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT
2377 , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2378 HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));
2379 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG
2380 , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2381 HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));
2382 // Float and double probes don't return value because dtrace doesn't currently support it
2383 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT
2384 , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2385 HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());
2386 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE
2387 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2388 HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());
2389
2390 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \
2391 , EntryProbe, ResultProbe) \
2392 \
2393 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \
2394 , ResultProbe); \
2395 \
2396 JNI_ENTRY(ResultType, \
2397 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2398 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2399 \
2400 EntryProbe; \
2401 ResultType ret = 0;\
2402 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2403 (const ResultType&)ret);\
2404 \
2405 JavaValue jvalue(Tag); \
2406 JNI_ArgumentPusherVaArg ap(methodID, args); \
2407 /* Make sure class is initialized before trying to invoke its method */ \
2408 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \
2409 k()->initialize(CHECK_0); \
2410 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2411 va_end(args); \
2412 ret = jvalue.get_##ResultType(); \
2413 return ret;\
2414 JNI_END
2415
2416 // the runtime type of subword integral basic types is integer
2417 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN
2418 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2419 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));
2420 DEFINE_CALLSTATICMETHODV(jbyte, Byte, T_BYTE
2421 , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2422 HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));
2423 DEFINE_CALLSTATICMETHODV(jchar, Char, T_CHAR
2424 , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2425 HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));
2426 DEFINE_CALLSTATICMETHODV(jshort, Short, T_SHORT
2427 , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2428 HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));
2429
2430 DEFINE_CALLSTATICMETHODV(jobject, Object, T_OBJECT
2431 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2432 HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));
2433 DEFINE_CALLSTATICMETHODV(jint, Int, T_INT
2434 , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2435 HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));
2436 DEFINE_CALLSTATICMETHODV(jlong, Long, T_LONG
2437 , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2438 HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));
2439 // Float and double probes don't return value because dtrace doesn't currently support it
2440 DEFINE_CALLSTATICMETHODV(jfloat, Float, T_FLOAT
2441 , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2442 HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());
2443 DEFINE_CALLSTATICMETHODV(jdouble, Double, T_DOUBLE
2444 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2445 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());
2446
2447 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \
2448 , EntryProbe, ResultProbe) \
2449 \
2450 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \
2451 , ResultProbe); \
2452 \
2453 JNI_ENTRY(ResultType, \
2454 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2455 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2456 \
2457 EntryProbe; \
2458 ResultType ret = 0;\
2459 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2460 (const ResultType&)ret);\
2461 \
2462 JavaValue jvalue(Tag); \
2463 JNI_ArgumentPusherArray ap(methodID, args); \
2464 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2465 ret = jvalue.get_##ResultType(); \
2466 return ret;\
2467 JNI_END
2468
2469 // the runtime type of subword integral basic types is integer
2470 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN
2471 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2472 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));
2473 DEFINE_CALLSTATICMETHODA(jbyte, Byte, T_BYTE
2474 , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2475 HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));
2476 DEFINE_CALLSTATICMETHODA(jchar, Char, T_CHAR
2477 , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2478 HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));
2479 DEFINE_CALLSTATICMETHODA(jshort, Short, T_SHORT
2480 , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2481 HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));
2482
2483 DEFINE_CALLSTATICMETHODA(jobject, Object, T_OBJECT
2484 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2485 HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));
2486 DEFINE_CALLSTATICMETHODA(jint, Int, T_INT
2487 , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2488 HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));
2489 DEFINE_CALLSTATICMETHODA(jlong, Long, T_LONG
2490 , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2491 HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));
2492 // Float and double probes don't return value because dtrace doesn't currently support it
2493 DEFINE_CALLSTATICMETHODA(jfloat, Float, T_FLOAT
2494 , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2495 HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());
2496 DEFINE_CALLSTATICMETHODA(jdouble, Double, T_DOUBLE
2497 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2498 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());
2499
2500 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod
2501 , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());
2502 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV
2503 , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());
2504 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA
2505 , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());
2506 #endif /* USDT2 */
2507
2508 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))
2509 JNIWrapper("CallStaticVoidMethod");
2510 #ifndef USDT2
2511 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);
2512 #else /* USDT2 */
2513 HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(
2514 env, cls, (uintptr_t) methodID);
2515 #endif /* USDT2 */
2516 DT_VOID_RETURN_MARK(CallStaticVoidMethod);
2517
2518 va_list args;
2519 va_start(args, methodID);
2520 JavaValue jvalue(T_VOID);
2521 JNI_ArgumentPusherVaArg ap(methodID, args);
2522 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2523 va_end(args);
2524 JNI_END
2525
2526
2527 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))
2528 JNIWrapper("CallStaticVoidMethodV");
2529 #ifndef USDT2
2530 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);
2531 #else /* USDT2 */
2532 HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(
2533 env, cls, (uintptr_t) methodID);
2534 #endif /* USDT2 */
2535 DT_VOID_RETURN_MARK(CallStaticVoidMethodV);
2536
2537 JavaValue jvalue(T_VOID);
2538 JNI_ArgumentPusherVaArg ap(methodID, args);
2539 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2540 JNI_END
2541
2542
2543 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))
2544 JNIWrapper("CallStaticVoidMethodA");
2545 #ifndef USDT2
2546 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);
2547 #else /* USDT2 */
2548 HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(
2549 env, cls, (uintptr_t) methodID);
2550 #endif /* USDT2 */
2551 DT_VOID_RETURN_MARK(CallStaticVoidMethodA);
2552
2553 JavaValue jvalue(T_VOID);
2554 JNI_ArgumentPusherArray ap(methodID, args);
2555 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2556 JNI_END
2557
2558
2559 //
2560 // Accessing Fields
2561 //
2562
2563
2564 #ifndef USDT2
2565 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);
2566 #else /* USDT2 */
2567 DT_RETURN_MARK_DECL(GetFieldID, jfieldID
2568 , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));
2569 #endif /* USDT2 */
2570
2571 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,
2572 const char *name, const char *sig))
2573 JNIWrapper("GetFieldID");
2574 #ifndef USDT2
2575 DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);
2576 #else /* USDT2 */
2577 HOTSPOT_JNI_GETFIELDID_ENTRY(
2578 env, clazz, (char *) name, (char *) sig);
2579 #endif /* USDT2 */
2580 jfieldID ret = 0;
2581 DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);
2582
2583 // The class should have been loaded (we have an instance of the class
2584 // passed in) so the field and signature should already be in the symbol
2585 // table. If they're not there, the field doesn't exist.
2586 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2587 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2588 if (fieldname == NULL || signame == NULL) {
2589 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2590 }
2591 KlassHandle k(THREAD,
2592 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2593 // Make sure class is initialized before handing id's out to fields
2594 k()->initialize(CHECK_NULL);
2595
2596 fieldDescriptor fd;
2597 if (!k()->oop_is_instance() ||
2598 !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {
2599 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2600 }
2601
2602 // A jfieldID for a non-static field is simply the offset of the field within the instanceOop
2603 // It may also have hash bits for k, if VerifyJNIFields is turned on.
2604 ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());
2605 return ret;
2606 JNI_END
2607
2608
2609 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))
2610 JNIWrapper("GetObjectField");
2611 #ifndef USDT2
2612 DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);
2613 #else /* USDT2 */
2614 HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(
2615 env, obj, (uintptr_t) fieldID);
2616 #endif /* USDT2 */
2617 oop o = JNIHandles::resolve_non_null(obj);
2618 Klass* k = o->klass();
2619 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2620 // Keep JVMTI addition small and only check enabled flag here.
2621 // jni_GetField_probe() assumes that is okay to create handles.
2622 if (JvmtiExport::should_post_field_access()) {
2623 o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);
2624 }
2625 jobject ret = JNIHandles::make_local(env, o->obj_field(offset));
2626 #if INCLUDE_ALL_GCS
2627 // If G1 is enabled and we are accessing the value of the referent
2628 // field in a reference object then we need to register a non-null
2629 // referent with the SATB barrier.
2630 if (UseG1GC) {
2631 bool needs_barrier = false;
2632
2633 if (ret != NULL &&
2634 offset == java_lang_ref_Reference::referent_offset &&
2635 InstanceKlass::cast(k)->reference_type() != REF_NONE) {
2636 assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");
2637 needs_barrier = true;
2638 }
2639
2640 if (needs_barrier) {
2641 oop referent = JNIHandles::resolve(ret);
2642 G1SATBCardTableModRefBS::enqueue(referent);
2643 }
2644 }
2645 #endif // INCLUDE_ALL_GCS
2646 #ifndef USDT2
2647 DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);
2648 #else /* USDT2 */
2649 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(
2650 ret);
2651 #endif /* USDT2 */
2652 return ret;
2653 JNI_END
2654
2655
2656 #ifndef USDT2
2657 #define DEFINE_GETFIELD(Return,Fieldname,Result) \
2658 \
2659 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\
2660 \
2661 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2662 JNIWrapper("Get" XSTR(Result) "Field"); \
2663 \
2664 DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\
2665 Return ret = 0;\
2666 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2667 \
2668 oop o = JNIHandles::resolve_non_null(obj); \
2669 Klass* k = o->klass(); \
2670 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2671 /* Keep JVMTI addition small and only check enabled flag here. */ \
2672 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2673 /* and creates a ResetNoHandleMark. */ \
2674 if (JvmtiExport::should_post_field_access()) { \
2675 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2676 } \
2677 ret = o->Fieldname##_field(offset); \
2678 return ret; \
2679 JNI_END
2680
2681 DEFINE_GETFIELD(jboolean, bool, Boolean)
2682 DEFINE_GETFIELD(jbyte, byte, Byte)
2683 DEFINE_GETFIELD(jchar, char, Char)
2684 DEFINE_GETFIELD(jshort, short, Short)
2685 DEFINE_GETFIELD(jint, int, Int)
2686 DEFINE_GETFIELD(jlong, long, Long)
2687 DEFINE_GETFIELD(jfloat, float, Float)
2688 DEFINE_GETFIELD(jdouble, double, Double)
2689
2690 #else /* USDT2 */
2691
2692 #define DEFINE_GETFIELD(Return,Fieldname,Result \
2693 , EntryProbe, ReturnProbe) \
2694 \
2695 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \
2696 , ReturnProbe); \
2697 \
2698 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2699 JNIWrapper("Get" XSTR(Result) "Field"); \
2700 \
2701 EntryProbe; \
2702 Return ret = 0;\
2703 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2704 \
2705 oop o = JNIHandles::resolve_non_null(obj); \
2706 Klass* k = o->klass(); \
2707 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2708 /* Keep JVMTI addition small and only check enabled flag here. */ \
2709 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2710 /* and creates a ResetNoHandleMark. */ \
2711 if (JvmtiExport::should_post_field_access()) { \
2712 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2713 } \
2714 ret = o->Fieldname##_field(offset); \
2715 return ret; \
2716 JNI_END
2717
2718 DEFINE_GETFIELD(jboolean, bool, Boolean
2719 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2720 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))
2721 DEFINE_GETFIELD(jbyte, byte, Byte
2722 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2723 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))
2724 DEFINE_GETFIELD(jchar, char, Char
2725 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2726 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))
2727 DEFINE_GETFIELD(jshort, short, Short
2728 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2729 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))
2730 DEFINE_GETFIELD(jint, int, Int
2731 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2732 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))
2733 DEFINE_GETFIELD(jlong, long, Long
2734 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2735 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))
2736 // Float and double probes don't return value because dtrace doesn't currently support it
2737 DEFINE_GETFIELD(jfloat, float, Float
2738 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2739 HOTSPOT_JNI_GETFLOATFIELD_RETURN())
2740 DEFINE_GETFIELD(jdouble, double, Double
2741 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2742 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())
2743 #endif /* USDT2 */
2744
2745 address jni_GetBooleanField_addr() {
2746 return (address)jni_GetBooleanField;
2747 }
2748 address jni_GetByteField_addr() {
2749 return (address)jni_GetByteField;
2750 }
2751 address jni_GetCharField_addr() {
2752 return (address)jni_GetCharField;
2753 }
2754 address jni_GetShortField_addr() {
2755 return (address)jni_GetShortField;
2756 }
2757 address jni_GetIntField_addr() {
2758 return (address)jni_GetIntField;
2759 }
2760 address jni_GetLongField_addr() {
2761 return (address)jni_GetLongField;
2762 }
2763 address jni_GetFloatField_addr() {
2764 return (address)jni_GetFloatField;
2765 }
2766 address jni_GetDoubleField_addr() {
2767 return (address)jni_GetDoubleField;
2768 }
2769
2770 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))
2771 JNIWrapper("SetObjectField");
2772 #ifndef USDT2
2773 DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);
2774 #else /* USDT2 */
2775 HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(
2776 env, obj, (uintptr_t) fieldID, value);
2777 #endif /* USDT2 */
2778 oop o = JNIHandles::resolve_non_null(obj);
2779 Klass* k = o->klass();
2780 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2781 // Keep JVMTI addition small and only check enabled flag here.
2782 // jni_SetField_probe_nh() assumes that is not okay to create handles
2783 // and creates a ResetNoHandleMark.
2784 if (JvmtiExport::should_post_field_modification()) {
2785 jvalue field_value;
2786 field_value.l = value;
2787 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);
2788 }
2789 o->obj_field_put(offset, JNIHandles::resolve(value));
2790 #ifndef USDT2
2791 DTRACE_PROBE(hotspot_jni, SetObjectField__return);
2792 #else /* USDT2 */
2793 HOTSPOT_JNI_SETOBJECTFIELD_RETURN(
2794 );
2795 #endif /* USDT2 */
2796 JNI_END
2797
2798 #ifndef USDT2
2799 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \
2800 \
2801 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2802 JNIWrapper("Set" XSTR(Result) "Field"); \
2803 \
2804 FP_SELECT_##Result( \
2805 DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \
2806 DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \
2807 \
2808 oop o = JNIHandles::resolve_non_null(obj); \
2809 Klass* k = o->klass(); \
2810 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2811 /* Keep JVMTI addition small and only check enabled flag here. */ \
2812 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2813 /* and creates a ResetNoHandleMark. */ \
2814 if (JvmtiExport::should_post_field_modification()) { \
2815 jvalue field_value; \
2816 field_value.unionType = value; \
2817 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2818 } \
2819 o->Fieldname##_field_put(offset, value); \
2820 DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\
2821 JNI_END
2822
2823 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z)
2824 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b)
2825 DEFINE_SETFIELD(jchar, char, Char, 'C', c)
2826 DEFINE_SETFIELD(jshort, short, Short, 'S', s)
2827 DEFINE_SETFIELD(jint, int, Int, 'I', i)
2828 DEFINE_SETFIELD(jlong, long, Long, 'J', j)
2829 DEFINE_SETFIELD(jfloat, float, Float, 'F', f)
2830 DEFINE_SETFIELD(jdouble, double, Double, 'D', d)
2831
2832 #else /* USDT2 */
2833
2834 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \
2835 , EntryProbe, ReturnProbe) \
2836 \
2837 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2838 JNIWrapper("Set" XSTR(Result) "Field"); \
2839 \
2840 EntryProbe; \
2841 \
2842 oop o = JNIHandles::resolve_non_null(obj); \
2843 Klass* k = o->klass(); \
2844 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2845 /* Keep JVMTI addition small and only check enabled flag here. */ \
2846 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2847 /* and creates a ResetNoHandleMark. */ \
2848 if (JvmtiExport::should_post_field_modification()) { \
2849 jvalue field_value; \
2850 field_value.unionType = value; \
2851 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2852 } \
2853 if (SigType == 'Z') { value = ((jboolean)value) & 1; } \
2854 o->Fieldname##_field_put(offset, value); \
2855 ReturnProbe; \
2856 JNI_END
2857
2858 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z
2859 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2860 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
2861 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b
2862 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2863 HOTSPOT_JNI_SETBYTEFIELD_RETURN())
2864 DEFINE_SETFIELD(jchar, char, Char, 'C', c
2865 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2866 HOTSPOT_JNI_SETCHARFIELD_RETURN())
2867 DEFINE_SETFIELD(jshort, short, Short, 'S', s
2868 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2869 HOTSPOT_JNI_SETSHORTFIELD_RETURN())
2870 DEFINE_SETFIELD(jint, int, Int, 'I', i
2871 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2872 HOTSPOT_JNI_SETINTFIELD_RETURN())
2873 DEFINE_SETFIELD(jlong, long, Long, 'J', j
2874 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2875 HOTSPOT_JNI_SETLONGFIELD_RETURN())
2876 // Float and double probes don't return value because dtrace doesn't currently support it
2877 DEFINE_SETFIELD(jfloat, float, Float, 'F', f
2878 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2879 HOTSPOT_JNI_SETFLOATFIELD_RETURN())
2880 DEFINE_SETFIELD(jdouble, double, Double, 'D', d
2881 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2882 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())
2883 #endif /* USDT2 */
2884
2885 #ifndef USDT2
2886 DT_RETURN_MARK_DECL(ToReflectedField, jobject);
2887 #else /* USDT2 */
2888 DT_RETURN_MARK_DECL(ToReflectedField, jobject
2889 , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));
2890 #endif /* USDT2 */
2891
2892 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))
2893 JNIWrapper("ToReflectedField");
2894 #ifndef USDT2
2895 DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,
2896 env, cls, fieldID, isStatic);
2897 #else /* USDT2 */
2898 HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(
2899 env, cls, (uintptr_t) fieldID, isStatic);
2900 #endif /* USDT2 */
2901 jobject ret = NULL;
2902 DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);
2903
2904 fieldDescriptor fd;
2905 bool found = false;
2906 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));
2907
2908 assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");
2909
2910 if (isStatic) {
2911 // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.
2912 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2913 assert(id->is_static_field_id(), "invalid static field id");
2914 found = id->find_local_field(&fd);
2915 } else {
2916 // Non-static field. The fieldID is really the offset of the field within the instanceOop.
2917 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2918 found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);
2919 }
2920 assert(found, "bad fieldID passed into jni_ToReflectedField");
2921 oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);
2922 ret = JNIHandles::make_local(env, reflected);
2923 return ret;
2924 JNI_END
2925
2926
2927 //
2928 // Accessing Static Fields
2929 //
2930 #ifndef USDT2
2931 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);
2932 #else /* USDT2 */
2933 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID
2934 , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));
2935 #endif /* USDT2 */
2936
2937 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,
2938 const char *name, const char *sig))
2939 JNIWrapper("GetStaticFieldID");
2940 #ifndef USDT2
2941 DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);
2942 #else /* USDT2 */
2943 HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(
2944 env, clazz, (char *) name, (char *) sig);
2945 #endif /* USDT2 */
2946 jfieldID ret = NULL;
2947 DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);
2948
2949 // The class should have been loaded (we have an instance of the class
2950 // passed in) so the field and signature should already be in the symbol
2951 // table. If they're not there, the field doesn't exist.
2952 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2953 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2954 if (fieldname == NULL || signame == NULL) {
2955 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2956 }
2957 KlassHandle k(THREAD,
2958 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2959 // Make sure class is initialized before handing id's out to static fields
2960 k()->initialize(CHECK_NULL);
2961
2962 fieldDescriptor fd;
2963 if (!k()->oop_is_instance() ||
2964 !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {
2965 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2966 }
2967
2968 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
2969 JNIid* id = fd.field_holder()->jni_id_for(fd.offset());
2970 debug_only(id->set_is_static_field_id();)
2971
2972 debug_only(id->verify(fd.field_holder()));
2973
2974 ret = jfieldIDWorkaround::to_static_jfieldID(id);
2975 return ret;
2976 JNI_END
2977
2978
2979 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))
2980 JNIWrapper("GetStaticObjectField");
2981 #ifndef USDT2
2982 DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);
2983 #else /* USDT2 */
2984 HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(
2985 env, clazz, (uintptr_t) fieldID);
2986 #endif /* USDT2 */
2987 #if INCLUDE_JNI_CHECK
2988 DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)
2989 #endif // INCLUDE_JNI_CHECK
2990 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2991 assert(id->is_static_field_id(), "invalid static field id");
2992 // Keep JVMTI addition small and only check enabled flag here.
2993 // jni_GetField_probe() assumes that is okay to create handles.
2994 if (JvmtiExport::should_post_field_access()) {
2995 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);
2996 }
2997 jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));
2998 #ifndef USDT2
2999 DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);
3000 #else /* USDT2 */
3001 HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(
3002 ret);
3003 #endif /* USDT2 */
3004 return ret;
3005 JNI_END
3006
3007 #ifndef USDT2
3008 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \
3009 \
3010 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\
3011 \
3012 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3013 JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3014 DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\
3015 Return ret = 0;\
3016 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3017 (const Return&)ret);\
3018 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3019 assert(id->is_static_field_id(), "invalid static field id"); \
3020 /* Keep JVMTI addition small and only check enabled flag here. */ \
3021 /* jni_GetField_probe() assumes that is okay to create handles. */ \
3022 if (JvmtiExport::should_post_field_access()) { \
3023 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3024 } \
3025 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3026 return ret;\
3027 JNI_END
3028
3029 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean)
3030 DEFINE_GETSTATICFIELD(jbyte, byte, Byte)
3031 DEFINE_GETSTATICFIELD(jchar, char, Char)
3032 DEFINE_GETSTATICFIELD(jshort, short, Short)
3033 DEFINE_GETSTATICFIELD(jint, int, Int)
3034 DEFINE_GETSTATICFIELD(jlong, long, Long)
3035 DEFINE_GETSTATICFIELD(jfloat, float, Float)
3036 DEFINE_GETSTATICFIELD(jdouble, double, Double)
3037
3038 #else /* USDT2 */
3039
3040 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \
3041 , EntryProbe, ReturnProbe) \
3042 \
3043 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \
3044 , ReturnProbe); \
3045 \
3046 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3047 JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3048 EntryProbe; \
3049 Return ret = 0;\
3050 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3051 (const Return&)ret);\
3052 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3053 assert(id->is_static_field_id(), "invalid static field id"); \
3054 /* Keep JVMTI addition small and only check enabled flag here. */ \
3055 /* jni_GetField_probe() assumes that is okay to create handles. */ \
3056 if (JvmtiExport::should_post_field_access()) { \
3057 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3058 } \
3059 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3060 return ret;\
3061 JNI_END
3062
3063 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean
3064 , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))
3065 DEFINE_GETSTATICFIELD(jbyte, byte, Byte
3066 , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref) )
3067 DEFINE_GETSTATICFIELD(jchar, char, Char
3068 , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref) )
3069 DEFINE_GETSTATICFIELD(jshort, short, Short
3070 , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref) )
3071 DEFINE_GETSTATICFIELD(jint, int, Int
3072 , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref) )
3073 DEFINE_GETSTATICFIELD(jlong, long, Long
3074 , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref) )
3075 // Float and double probes don't return value because dtrace doesn't currently support it
3076 DEFINE_GETSTATICFIELD(jfloat, float, Float
3077 , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN() )
3078 DEFINE_GETSTATICFIELD(jdouble, double, Double
3079 , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN() )
3080 #endif /* USDT2 */
3081
3082 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))
3083 JNIWrapper("SetStaticObjectField");
3084 #ifndef USDT2
3085 DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);
3086 #else /* USDT2 */
3087 HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(
3088 env, clazz, (uintptr_t) fieldID, value);
3089 #endif /* USDT2 */
3090 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
3091 assert(id->is_static_field_id(), "invalid static field id");
3092 // Keep JVMTI addition small and only check enabled flag here.
3093 // jni_SetField_probe() assumes that is okay to create handles.
3094 if (JvmtiExport::should_post_field_modification()) {
3095 jvalue field_value;
3096 field_value.l = value;
3097 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);
3098 }
3099 id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));
3100 #ifndef USDT2
3101 DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);
3102 #else /* USDT2 */
3103 HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(
3104 );
3105 #endif /* USDT2 */
3106 JNI_END
3107
3108
3109 #ifndef USDT2
3110 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \
3111 \
3112 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3113 JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3114 FP_SELECT_##Result( \
3115 DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \
3116 DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \
3117 \
3118 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3119 assert(id->is_static_field_id(), "invalid static field id"); \
3120 /* Keep JVMTI addition small and only check enabled flag here. */ \
3121 /* jni_SetField_probe() assumes that is okay to create handles. */ \
3122 if (JvmtiExport::should_post_field_modification()) { \
3123 jvalue field_value; \
3124 field_value.unionType = value; \
3125 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3126 } \
3127 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3128 DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\
3129 JNI_END
3130
3131 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z)
3132 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b)
3133 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c)
3134 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s)
3135 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i)
3136 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j)
3137 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f)
3138 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d)
3139
3140 #else /* USDT2 */
3141
3142 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \
3143 , EntryProbe, ReturnProbe) \
3144 \
3145 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3146 JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3147 EntryProbe; \
3148 \
3149 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3150 assert(id->is_static_field_id(), "invalid static field id"); \
3151 /* Keep JVMTI addition small and only check enabled flag here. */ \
3152 /* jni_SetField_probe() assumes that is okay to create handles. */ \
3153 if (JvmtiExport::should_post_field_modification()) { \
3154 jvalue field_value; \
3155 field_value.unionType = value; \
3156 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3157 } \
3158 if (SigType == 'Z') { value = ((jboolean)value) & 1; } \
3159 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3160 ReturnProbe;\
3161 JNI_END
3162
3163 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z
3164 , HOTSPOT_JNI_SETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),
3165 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
3166 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b
3167 , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3168 HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())
3169 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c
3170 , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3171 HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())
3172 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s
3173 , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3174 HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())
3175 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i
3176 , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3177 HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())
3178 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j
3179 , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3180 HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())
3181 // Float and double probes don't return value because dtrace doesn't currently support it
3182 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f
3183 , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3184 HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())
3185 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d
3186 , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3187 HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())
3188 #endif /* USDT2 */
3189
3190 //
3191 // String Operations
3192 //
3193
3194 // Unicode Interface
3195
3196 #ifndef USDT2
3197 DT_RETURN_MARK_DECL(NewString, jstring);
3198 #else /* USDT2 */
3199 DT_RETURN_MARK_DECL(NewString, jstring
3200 , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));
3201 #endif /* USDT2 */
3202
3203 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))
3204 JNIWrapper("NewString");
3205 #ifndef USDT2
3206 DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);
3207 #else /* USDT2 */
3208 HOTSPOT_JNI_NEWSTRING_ENTRY(
3209 env, (uint16_t *) unicodeChars, len);
3210 #endif /* USDT2 */
3211 jstring ret = NULL;
3212 DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);
3213 oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);
3214 ret = (jstring) JNIHandles::make_local(env, string);
3215 return ret;
3216 JNI_END
3217
3218
3219 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))
3220 JNIWrapper("GetStringLength");
3221 #ifndef USDT2
3222 DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);
3223 #else /* USDT2 */
3224 HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(
3225 env, string);
3226 #endif /* USDT2 */
3227 jsize ret = 0;
3228 oop s = JNIHandles::resolve_non_null(string);
3229 if (java_lang_String::value(s) != NULL) {
3230 ret = java_lang_String::length(s);
3231 }
3232 #ifndef USDT2
3233 DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);
3234 #else /* USDT2 */
3235 HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(
3236 ret);
3237 #endif /* USDT2 */
3238 return ret;
3239 JNI_END
3240
3241
3242 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(
3243 JNIEnv *env, jstring string, jboolean *isCopy))
3244 JNIWrapper("GetStringChars");
3245 #ifndef USDT2
3246 DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);
3247 #else /* USDT2 */
3248 HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(
3249 env, string, (uintptr_t *) isCopy);
3250 #endif /* USDT2 */
3251 jchar* buf = NULL;
3252 oop s = JNIHandles::resolve_non_null(string);
3253 typeArrayOop s_value = java_lang_String::value(s);
3254 if (s_value != NULL) {
3255 int s_len = java_lang_String::length(s);
3256 int s_offset = java_lang_String::offset(s);
3257 buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal); // add one for zero termination
3258 /* JNI Specification states return NULL on OOM */
3259 if (buf != NULL) {
3260 if (s_len > 0) {
3261 memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);
3262 }
3263 buf[s_len] = 0;
3264 //%note jni_5
3265 if (isCopy != NULL) {
3266 *isCopy = JNI_TRUE;
3267 }
3268 }
3269 }
3270 #ifndef USDT2
3271 DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);
3272 #else /* USDT2 */
3273 HOTSPOT_JNI_GETSTRINGCHARS_RETURN(
3274 buf);
3275 #endif /* USDT2 */
3276 return buf;
3277 JNI_END
3278
3279
3280 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))
3281 JNIWrapper("ReleaseStringChars");
3282 #ifndef USDT2
3283 DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);
3284 #else /* USDT2 */
3285 HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(
3286 env, str, (uint16_t *) chars);
3287 #endif /* USDT2 */
3288 //%note jni_6
3289 if (chars != NULL) {
3290 // Since String objects are supposed to be immutable, don't copy any
3291 // new data back. A bad user will have to go after the char array.
3292 FreeHeap((void*) chars);
3293 }
3294 #ifndef USDT2
3295 DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);
3296 #else /* USDT2 */
3297 HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(
3298 );
3299 #endif /* USDT2 */
3300 JNI_END
3301
3302
3303 // UTF Interface
3304
3305 #ifndef USDT2
3306 DT_RETURN_MARK_DECL(NewStringUTF, jstring);
3307 #else /* USDT2 */
3308 DT_RETURN_MARK_DECL(NewStringUTF, jstring
3309 , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));
3310 #endif /* USDT2 */
3311
3312 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))
3313 JNIWrapper("NewStringUTF");
3314 #ifndef USDT2
3315 DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);
3316 #else /* USDT2 */
3317 HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(
3318 env, (char *) bytes);
3319 #endif /* USDT2 */
3320 jstring ret;
3321 DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);
3322
3323 oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);
3324 ret = (jstring) JNIHandles::make_local(env, result);
3325 return ret;
3326 JNI_END
3327
3328
3329 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))
3330 JNIWrapper("GetStringUTFLength");
3331 #ifndef USDT2
3332 DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);
3333 #else /* USDT2 */
3334 HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(
3335 env, string);
3336 #endif /* USDT2 */
3337 jsize ret = 0;
3338 oop java_string = JNIHandles::resolve_non_null(string);
3339 if (java_lang_String::value(java_string) != NULL) {
3340 ret = java_lang_String::utf8_length(java_string);
3341 }
3342 #ifndef USDT2
3343 DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);
3344 #else /* USDT2 */
3345 HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(
3346 ret);
3347 #endif /* USDT2 */
3348 return ret;
3349 JNI_END
3350
3351
3352 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))
3353 JNIWrapper("GetStringUTFChars");
3354 #ifndef USDT2
3355 DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);
3356 #else /* USDT2 */
3357 HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(
3358 env, string, (uintptr_t *) isCopy);
3359 #endif /* USDT2 */
3360 char* result = NULL;
3361 oop java_string = JNIHandles::resolve_non_null(string);
3362 if (java_lang_String::value(java_string) != NULL) {
3363 size_t length = java_lang_String::utf8_length(java_string);
3364 /* JNI Specification states return NULL on OOM */
3365 result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);
3366 if (result != NULL) {
3367 java_lang_String::as_utf8_string(java_string, result, (int) length + 1);
3368 if (isCopy != NULL) {
3369 *isCopy = JNI_TRUE;
3370 }
3371 }
3372 }
3373 #ifndef USDT2
3374 DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);
3375 #else /* USDT2 */
3376 HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(
3377 result);
3378 #endif /* USDT2 */
3379 return result;
3380 JNI_END
3381
3382
3383 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))
3384 JNIWrapper("ReleaseStringUTFChars");
3385 #ifndef USDT2
3386 DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);
3387 #else /* USDT2 */
3388 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(
3389 env, str, (char *) chars);
3390 #endif /* USDT2 */
3391 if (chars != NULL) {
3392 FreeHeap((char*) chars);
3393 }
3394 #ifndef USDT2
3395 DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);
3396 #else /* USDT2 */
3397 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(
3398 );
3399 #endif /* USDT2 */
3400 JNI_END
3401
3402
3403 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))
3404 JNIWrapper("GetArrayLength");
3405 #ifndef USDT2
3406 DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);
3407 #else /* USDT2 */
3408 HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(
3409 env, array);
3410 #endif /* USDT2 */
3411 arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));
3412 assert(a->is_array(), "must be array");
3413 jsize ret = a->length();
3414 #ifndef USDT2
3415 DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);
3416 #else /* USDT2 */
3417 HOTSPOT_JNI_GETARRAYLENGTH_RETURN(
3418 ret);
3419 #endif /* USDT2 */
3420 return ret;
3421 JNI_END
3422
3423
3424 //
3425 // Object Array Operations
3426 //
3427
3428 #ifndef USDT2
3429 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);
3430 #else /* USDT2 */
3431 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray
3432 , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));
3433 #endif /* USDT2 */
3434
3435 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))
3436 JNIWrapper("NewObjectArray");
3437 #ifndef USDT2
3438 DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);
3439 #else /* USDT2 */
3440 HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(
3441 env, length, elementClass, initialElement);
3442 #endif /* USDT2 */
3443 jobjectArray ret = NULL;
3444 DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);
3445 KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));
3446 Klass* ako = ek()->array_klass(CHECK_NULL);
3447 KlassHandle ak = KlassHandle(THREAD, ako);
3448 ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);
3449 objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);
3450 oop initial_value = JNIHandles::resolve(initialElement);
3451 if (initial_value != NULL) { // array already initialized with NULL
3452 for (int index = 0; index < length; index++) {
3453 result->obj_at_put(index, initial_value);
3454 }
3455 }
3456 ret = (jobjectArray) JNIHandles::make_local(env, result);
3457 return ret;
3458 JNI_END
3459
3460 #ifndef USDT2
3461 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);
3462 #else /* USDT2 */
3463 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject
3464 , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));
3465 #endif /* USDT2 */
3466
3467 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))
3468 JNIWrapper("GetObjectArrayElement");
3469 #ifndef USDT2
3470 DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);
3471 #else /* USDT2 */
3472 HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(
3473 env, array, index);
3474 #endif /* USDT2 */
3475 jobject ret = NULL;
3476 DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);
3477 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3478 if (a->is_within_bounds(index)) {
3479 ret = JNIHandles::make_local(env, a->obj_at(index));
3480 return ret;
3481 } else {
3482 char buf[jintAsStringSize];
3483 sprintf(buf, "%d", index);
3484 THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3485 }
3486 JNI_END
3487
3488 #ifndef USDT2
3489 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);
3490 #else /* USDT2 */
3491 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement
3492 , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());
3493 #endif /* USDT2 */
3494
3495 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))
3496 JNIWrapper("SetObjectArrayElement");
3497 #ifndef USDT2
3498 DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);
3499 #else /* USDT2 */
3500 HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(
3501 env, array, index, value);
3502 #endif /* USDT2 */
3503 DT_VOID_RETURN_MARK(SetObjectArrayElement);
3504
3505 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3506 oop v = JNIHandles::resolve(value);
3507 if (a->is_within_bounds(index)) {
3508 if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {
3509 a->obj_at_put(index, v);
3510 } else {
3511 THROW(vmSymbols::java_lang_ArrayStoreException());
3512 }
3513 } else {
3514 char buf[jintAsStringSize];
3515 sprintf(buf, "%d", index);
3516 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3517 }
3518 JNI_END
3519
3520
3521 #ifndef USDT2
3522 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \
3523 \
3524 DT_RETURN_MARK_DECL(New##Result##Array, Return); \
3525 \
3526 JNI_ENTRY(Return, \
3527 jni_New##Result##Array(JNIEnv *env, jsize len)) \
3528 JNIWrapper("New" XSTR(Result) "Array"); \
3529 DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\
3530 Return ret = NULL;\
3531 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3532 \
3533 oop obj= oopFactory::Allocator(len, CHECK_0); \
3534 ret = (Return) JNIHandles::make_local(env, obj); \
3535 return ret;\
3536 JNI_END
3537
3538 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean)
3539 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte)
3540 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short)
3541 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char)
3542 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int)
3543 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long)
3544 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float)
3545 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double)
3546
3547 #else /* USDT2 */
3548
3549 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \
3550 ,EntryProbe,ReturnProbe) \
3551 \
3552 DT_RETURN_MARK_DECL(New##Result##Array, Return \
3553 , ReturnProbe); \
3554 \
3555 JNI_ENTRY(Return, \
3556 jni_New##Result##Array(JNIEnv *env, jsize len)) \
3557 JNIWrapper("New" XSTR(Result) "Array"); \
3558 EntryProbe; \
3559 Return ret = NULL;\
3560 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3561 \
3562 oop obj= oopFactory::Allocator(len, CHECK_0); \
3563 ret = (Return) JNIHandles::make_local(env, obj); \
3564 return ret;\
3565 JNI_END
3566
3567 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean,
3568 HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),
3569 HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))
3570 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte,
3571 HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),
3572 HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))
3573 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short,
3574 HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),
3575 HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))
3576 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char,
3577 HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),
3578 HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))
3579 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int,
3580 HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),
3581 HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))
3582 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long,
3583 HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),
3584 HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))
3585 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float,
3586 HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),
3587 HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))
3588 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double,
3589 HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),
3590 HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))
3591 #endif /* USDT2 */
3592
3593 // Return an address which will fault if the caller writes to it.
3594
3595 static char* get_bad_address() {
3596 static char* bad_address = NULL;
3597 if (bad_address == NULL) {
3598 size_t size = os::vm_allocation_granularity();
3599 bad_address = os::reserve_memory(size);
3600 if (bad_address != NULL) {
3601 os::protect_memory(bad_address, size, os::MEM_PROT_READ,
3602 /*is_committed*/false);
3603 MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);
3604 }
3605 }
3606 return bad_address;
3607 }
3608
3609
3610 #ifndef USDT2
3611 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \
3612 \
3613 JNI_QUICK_ENTRY(ElementType*, \
3614 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3615 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3616 DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\
3617 /* allocate an chunk of memory in c land */ \
3618 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3619 ElementType* result; \
3620 int len = a->length(); \
3621 if (len == 0) { \
3622 /* Empty array: legal but useless, can't return NULL. \
3623 * Return a pointer to something useless. \
3624 * Avoid asserts in typeArrayOop. */ \
3625 result = (ElementType*)get_bad_address(); \
3626 } else { \
3627 /* JNI Specification states return NULL on OOM */ \
3628 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3629 if (result != NULL) { \
3630 /* copy the array to the c chunk */ \
3631 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \
3632 if (isCopy) { \
3633 *isCopy = JNI_TRUE; \
3634 } \
3635 } \
3636 } \
3637 DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\
3638 return result; \
3639 JNI_END
3640
3641 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3642 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte)
3643 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short)
3644 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char)
3645 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int)
3646 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long)
3647 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float)
3648 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double)
3649
3650 #else /* USDT2 */
3651
3652 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \
3653 , EntryProbe, ReturnProbe) \
3654 \
3655 JNI_QUICK_ENTRY(ElementType*, \
3656 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3657 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3658 EntryProbe; \
3659 /* allocate an chunk of memory in c land */ \
3660 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3661 ElementType* result; \
3662 int len = a->length(); \
3663 if (len == 0) { \
3664 /* Empty array: legal but useless, can't return NULL. \
3665 * Return a pointer to something useless. \
3666 * Avoid asserts in typeArrayOop. */ \
3667 result = (ElementType*)get_bad_address(); \
3668 } else { \
3669 /* JNI Specification states return NULL on OOM */ \
3670 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3671 if (result != NULL) { \
3672 /* copy the array to the c chunk */ \
3673 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \
3674 if (isCopy) { \
3675 *isCopy = JNI_TRUE; \
3676 } \
3677 } \
3678 } \
3679 ReturnProbe; \
3680 return result; \
3681 JNI_END
3682
3683 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3684 , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3685 HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))
3686 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte
3687 , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3688 HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))
3689 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short
3690 , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3691 HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))
3692 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char
3693 , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3694 HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))
3695 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int
3696 , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3697 HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))
3698 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long
3699 , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3700 HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))
3701 // Float and double probes don't return value because dtrace doesn't currently support it
3702 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float
3703 , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3704 HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))
3705 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double
3706 , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3707 HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))
3708 #endif /* USDT2 */
3709
3710 #ifndef USDT2
3711 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \
3712 \
3713 JNI_QUICK_ENTRY(void, \
3714 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3715 ElementType *buf, jint mode)) \
3716 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3717 DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\
3718 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3719 int len = a->length(); \
3720 if (len != 0) { /* Empty array: nothing to free or copy. */ \
3721 if ((mode == 0) || (mode == JNI_COMMIT)) { \
3722 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3723 } \
3724 if ((mode == 0) || (mode == JNI_ABORT)) { \
3725 FreeHeap(buf); \
3726 } \
3727 } \
3728 DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\
3729 JNI_END
3730
3731 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3732 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte)
3733 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short)
3734 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char)
3735 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int)
3736 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long)
3737 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float)
3738 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double)
3739
3740 #else /* USDT2 */
3741
3742 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \
3743 , EntryProbe, ReturnProbe);\
3744 \
3745 JNI_QUICK_ENTRY(void, \
3746 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3747 ElementType *buf, jint mode)) \
3748 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3749 EntryProbe; \
3750 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3751 int len = a->length(); \
3752 if (len != 0) { /* Empty array: nothing to free or copy. */ \
3753 if ((mode == 0) || (mode == JNI_COMMIT)) { \
3754 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3755 } \
3756 if ((mode == 0) || (mode == JNI_ABORT)) { \
3757 FreeHeap(buf); \
3758 } \
3759 } \
3760 ReturnProbe; \
3761 JNI_END
3762
3763 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3764 , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3765 HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())
3766 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte
3767 , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),
3768 HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())
3769 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short
3770 , HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3771 HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())
3772 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char
3773 , HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3774 HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())
3775 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int
3776 , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),
3777 HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())
3778 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long
3779 , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3780 HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())
3781 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float
3782 , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),
3783 HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())
3784 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double
3785 , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),
3786 HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())
3787 #endif /* USDT2 */
3788
3789 #ifndef USDT2
3790 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3791 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\
3792 \
3793 JNI_ENTRY(void, \
3794 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3795 jsize len, ElementType *buf)) \
3796 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3797 DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\
3798 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3799 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3800 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \
3801 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3802 } else { \
3803 if (len > 0) { \
3804 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3805 memcpy((u_char*) buf, \
3806 (u_char*) src->Tag##_at_addr(start), \
3807 len << sc); \
3808 } \
3809 } \
3810 JNI_END
3811
3812 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)
3813 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte)
3814 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short)
3815 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char)
3816 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int)
3817 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long)
3818 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float)
3819 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double)
3820
3821 #else /* USDT2 */
3822
3823 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3824 , EntryProbe, ReturnProbe); \
3825 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \
3826 , ReturnProbe); \
3827 \
3828 JNI_ENTRY(void, \
3829 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3830 jsize len, ElementType *buf)) \
3831 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3832 EntryProbe; \
3833 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3834 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3835 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \
3836 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3837 } else { \
3838 if (len > 0) { \
3839 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3840 memcpy((u_char*) buf, \
3841 (u_char*) src->Tag##_at_addr(start), \
3842 len << sc); \
3843 } \
3844 } \
3845 JNI_END
3846
3847 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool
3848 , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3849 HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());
3850 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte
3851 , HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3852 HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());
3853 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short
3854 , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3855 HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());
3856 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char
3857 , HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),
3858 HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());
3859 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int
3860 , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),
3861 HOTSPOT_JNI_GETINTARRAYREGION_RETURN());
3862 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long
3863 , HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3864 HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());
3865 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float
3866 , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3867 HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());
3868 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double
3869 , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3870 HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());
3871 #endif /* USDT2 */
3872
3873 #ifndef USDT2
3874 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3875 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\
3876 \
3877 JNI_ENTRY(void, \
3878 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3879 jsize len, const ElementType *buf)) \
3880 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3881 DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\
3882 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3883 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3884 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \
3885 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3886 } else { \
3887 if (len > 0) { \
3888 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3889 memcpy((u_char*) dst->Tag##_at_addr(start), \
3890 (u_char*) buf, \
3891 len << sc); \
3892 } \
3893 } \
3894 JNI_END
3895
3896 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)
3897 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte)
3898 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short)
3899 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char)
3900 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int)
3901 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long)
3902 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float)
3903 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double)
3904
3905 #else /* USDT2 */
3906
3907 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3908 , EntryProbe, ReturnProbe); \
3909 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \
3910 ,ReturnProbe); \
3911 \
3912 JNI_ENTRY(void, \
3913 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3914 jsize len, const ElementType *buf)) \
3915 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3916 EntryProbe; \
3917 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3918 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3919 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \
3920 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3921 } else { \
3922 if (len > 0) { \
3923 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3924 memcpy((u_char*) dst->Tag##_at_addr(start), \
3925 (u_char*) buf, \
3926 len << sc); \
3927 } \
3928 } \
3929 JNI_END
3930
3931 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool
3932 , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),
3933 HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())
3934 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte
3935 , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3936 HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())
3937 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short
3938 , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3939 HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())
3940 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char
3941 , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3942 HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())
3943 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int
3944 , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),
3945 HOTSPOT_JNI_SETINTARRAYREGION_RETURN())
3946 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long
3947 , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3948 HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())
3949 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float
3950 , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3951 HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())
3952 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double
3953 , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3954 HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())
3955 #endif /* USDT2 */
3956
3957
3958 //
3959 // Interception of natives
3960 //
3961
3962 // The RegisterNatives call being attempted tried to register with a method that
3963 // is not native. Ask JVM TI what prefixes have been specified. Then check
3964 // to see if the native method is now wrapped with the prefixes. See the
3965 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.
3966 static Method* find_prefixed_native(KlassHandle k,
3967 Symbol* name, Symbol* signature, TRAPS) {
3968 #if INCLUDE_JVMTI
3969 ResourceMark rm(THREAD);
3970 Method* method;
3971 int name_len = name->utf8_length();
3972 char* name_str = name->as_utf8();
3973 int prefix_count;
3974 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);
3975 for (int i = 0; i < prefix_count; i++) {
3976 char* prefix = prefixes[i];
3977 int prefix_len = (int)strlen(prefix);
3978
3979 // try adding this prefix to the method name and see if it matches another method name
3980 int trial_len = name_len + prefix_len;
3981 char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);
3982 strcpy(trial_name_str, prefix);
3983 strcat(trial_name_str, name_str);
3984 TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);
3985 if (trial_name == NULL) {
3986 continue; // no such symbol, so this prefix wasn't used, try the next prefix
3987 }
3988 method = k()->lookup_method(trial_name, signature);
3989 if (method == NULL) {
3990 continue; // signature doesn't match, try the next prefix
3991 }
3992 if (method->is_native()) {
3993 method->set_is_prefixed_native();
3994 return method; // wahoo, we found a prefixed version of the method, return it
3995 }
3996 // found as non-native, so prefix is good, add it, probably just need more prefixes
3997 name_len = trial_len;
3998 name_str = trial_name_str;
3999 }
4000 #endif // INCLUDE_JVMTI
4001 return NULL; // not found
4002 }
4003
4004 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {
4005 Method* method = k()->lookup_method(name, signature);
4006 if (method == NULL) {
4007 ResourceMark rm;
4008 stringStream st;
4009 st.print("Method %s name or signature does not match",
4010 Method::name_and_sig_as_C_string(k(), name, signature));
4011 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4012 }
4013 if (!method->is_native()) {
4014 // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)
4015 method = find_prefixed_native(k, name, signature, THREAD);
4016 if (method == NULL) {
4017 ResourceMark rm;
4018 stringStream st;
4019 st.print("Method %s is not declared as native",
4020 Method::name_and_sig_as_C_string(k(), name, signature));
4021 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4022 }
4023 }
4024
4025 if (entry != NULL) {
4026 method->set_native_function(entry,
4027 Method::native_bind_event_is_interesting);
4028 } else {
4029 method->clear_native_function();
4030 }
4031 if (PrintJNIResolving) {
4032 ResourceMark rm(THREAD);
4033 tty->print_cr("[Registering JNI native method %s.%s]",
4034 method->method_holder()->external_name(),
4035 method->name()->as_C_string());
4036 }
4037 return true;
4038 }
4039
4040 #ifndef USDT2
4041 DT_RETURN_MARK_DECL(RegisterNatives, jint);
4042 #else /* USDT2 */
4043 DT_RETURN_MARK_DECL(RegisterNatives, jint
4044 , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));
4045 #endif /* USDT2 */
4046
4047 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,
4048 const JNINativeMethod *methods,
4049 jint nMethods))
4050 JNIWrapper("RegisterNatives");
4051 #ifndef USDT2
4052 DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);
4053 #else /* USDT2 */
4054 HOTSPOT_JNI_REGISTERNATIVES_ENTRY(
4055 env, clazz, (void *) methods, nMethods);
4056 #endif /* USDT2 */
4057 jint ret = 0;
4058 DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);
4059
4060 KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
4061
4062 for (int index = 0; index < nMethods; index++) {
4063 const char* meth_name = methods[index].name;
4064 const char* meth_sig = methods[index].signature;
4065 int meth_name_len = (int)strlen(meth_name);
4066
4067 // The class should have been loaded (we have an instance of the class
4068 // passed in) so the method and signature should already be in the symbol
4069 // table. If they're not there, the method doesn't exist.
4070 TempNewSymbol name = SymbolTable::probe(meth_name, meth_name_len);
4071 TempNewSymbol signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));
4072
4073 if (name == NULL || signature == NULL) {
4074 ResourceMark rm;
4075 stringStream st;
4076 st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);
4077 // Must return negative value on failure
4078 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);
4079 }
4080
4081 bool res = register_native(h_k, name, signature,
4082 (address) methods[index].fnPtr, THREAD);
4083 if (!res) {
4084 ret = -1;
4085 break;
4086 }
4087 }
4088 return ret;
4089 JNI_END
4090
4091
4092 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))
4093 JNIWrapper("UnregisterNatives");
4094 #ifndef USDT2
4095 DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);
4096 #else /* USDT2 */
4097 HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(
4098 env, clazz);
4099 #endif /* USDT2 */
4100 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));
4101 //%note jni_2
4102 if (k->oop_is_instance()) {
4103 for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {
4104 Method* m = InstanceKlass::cast(k)->methods()->at(index);
4105 if (m->is_native()) {
4106 m->clear_native_function();
4107 m->set_signature_handler(NULL);
4108 }
4109 }
4110 }
4111 #ifndef USDT2
4112 DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);
4113 #else /* USDT2 */
4114 HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(
4115 0);
4116 #endif /* USDT2 */
4117 return 0;
4118 JNI_END
4119
4120 //
4121 // Monitor functions
4122 //
4123
4124 #ifndef USDT2
4125 DT_RETURN_MARK_DECL(MonitorEnter, jint);
4126 #else /* USDT2 */
4127 DT_RETURN_MARK_DECL(MonitorEnter, jint
4128 , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));
4129 #endif /* USDT2 */
4130
4131 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))
4132 #ifndef USDT2
4133 DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);
4134 #else /* USDT2 */
4135 HOTSPOT_JNI_MONITORENTER_ENTRY(
4136 env, jobj);
4137 #endif /* USDT2 */
4138 jint ret = JNI_ERR;
4139 DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);
4140
4141 // If the object is null, we can't do anything with it
4142 if (jobj == NULL) {
4143 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4144 }
4145
4146 Handle obj(thread, JNIHandles::resolve_non_null(jobj));
4147 ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));
4148 ret = JNI_OK;
4149 return ret;
4150 JNI_END
4151
4152 #ifndef USDT2
4153 DT_RETURN_MARK_DECL(MonitorExit, jint);
4154 #else /* USDT2 */
4155 DT_RETURN_MARK_DECL(MonitorExit, jint
4156 , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));
4157 #endif /* USDT2 */
4158
4159 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))
4160 #ifndef USDT2
4161 DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);
4162 #else /* USDT2 */
4163 HOTSPOT_JNI_MONITOREXIT_ENTRY(
4164 env, jobj);
4165 #endif /* USDT2 */
4166 jint ret = JNI_ERR;
4167 DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);
4168
4169 // Don't do anything with a null object
4170 if (jobj == NULL) {
4171 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4172 }
4173
4174 Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));
4175 ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));
4176
4177 ret = JNI_OK;
4178 return ret;
4179 JNI_END
4180
4181 //
4182 // Extensions
4183 //
4184
4185 #ifndef USDT2
4186 DT_VOID_RETURN_MARK_DECL(GetStringRegion);
4187 #else /* USDT2 */
4188 DT_VOID_RETURN_MARK_DECL(GetStringRegion
4189 , HOTSPOT_JNI_GETSTRINGREGION_RETURN());
4190 #endif /* USDT2 */
4191
4192 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))
4193 JNIWrapper("GetStringRegion");
4194 #ifndef USDT2
4195 DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);
4196 #else /* USDT2 */
4197 HOTSPOT_JNI_GETSTRINGREGION_ENTRY(
4198 env, string, start, len, buf);
4199 #endif /* USDT2 */
4200 DT_VOID_RETURN_MARK(GetStringRegion);
4201 oop s = JNIHandles::resolve_non_null(string);
4202 int s_len = java_lang_String::length(s);
4203 if (start < 0 || len < 0 || start + len > s_len) {
4204 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4205 } else {
4206 if (len > 0) {
4207 int s_offset = java_lang_String::offset(s);
4208 typeArrayOop s_value = java_lang_String::value(s);
4209 memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);
4210 }
4211 }
4212 JNI_END
4213
4214 #ifndef USDT2
4215 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);
4216 #else /* USDT2 */
4217 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion
4218 , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());
4219 #endif /* USDT2 */
4220
4221 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))
4222 JNIWrapper("GetStringUTFRegion");
4223 #ifndef USDT2
4224 DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);
4225 #else /* USDT2 */
4226 HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(
4227 env, string, start, len, buf);
4228 #endif /* USDT2 */
4229 DT_VOID_RETURN_MARK(GetStringUTFRegion);
4230 oop s = JNIHandles::resolve_non_null(string);
4231 int s_len = java_lang_String::length(s);
4232 if (start < 0 || len < 0 || start + len > s_len) {
4233 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4234 } else {
4235 //%note jni_7
4236 if (len > 0) {
4237 ResourceMark rm(THREAD);
4238 char *utf_region = java_lang_String::as_utf8_string(s, start, len);
4239 int utf_len = (int)strlen(utf_region);
4240 memcpy(buf, utf_region, utf_len);
4241 buf[utf_len] = 0;
4242 } else {
4243 // JDK null-terminates the buffer even in len is zero
4244 if (buf != NULL) {
4245 buf[0] = 0;
4246 }
4247 }
4248 }
4249 JNI_END
4250
4251
4252 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))
4253 JNIWrapper("GetPrimitiveArrayCritical");
4254 #ifndef USDT2
4255 DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);
4256 #else /* USDT2 */
4257 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(
4258 env, array, (uintptr_t *) isCopy);
4259 #endif /* USDT2 */
4260 GC_locker::lock_critical(thread);
4261 if (isCopy != NULL) {
4262 *isCopy = JNI_FALSE;
4263 }
4264 oop a = JNIHandles::resolve_non_null(array);
4265 assert(a->is_array(), "just checking");
4266 BasicType type;
4267 if (a->is_objArray()) {
4268 type = T_OBJECT;
4269 } else {
4270 type = TypeArrayKlass::cast(a->klass())->element_type();
4271 }
4272 void* ret = arrayOop(a)->base(type);
4273 #ifndef USDT2
4274 DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);
4275 #else /* USDT2 */
4276 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(
4277 ret);
4278 #endif /* USDT2 */
4279 return ret;
4280 JNI_END
4281
4282
4283 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))
4284 JNIWrapper("ReleasePrimitiveArrayCritical");
4285 #ifndef USDT2
4286 DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);
4287 #else /* USDT2 */
4288 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(
4289 env, array, carray, mode);
4290 #endif /* USDT2 */
4291 // The array, carray and mode arguments are ignored
4292 GC_locker::unlock_critical(thread);
4293 #ifndef USDT2
4294 DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);
4295 #else /* USDT2 */
4296 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(
4297 );
4298 #endif /* USDT2 */
4299 JNI_END
4300
4301
4302 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))
4303 JNIWrapper("GetStringCritical");
4304 #ifndef USDT2
4305 DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);
4306 #else /* USDT2 */
4307 HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(
4308 env, string, (uintptr_t *) isCopy);
4309 #endif /* USDT2 */
4310 GC_locker::lock_critical(thread);
4311 if (isCopy != NULL) {
4312 *isCopy = JNI_FALSE;
4313 }
4314 oop s = JNIHandles::resolve_non_null(string);
4315 int s_len = java_lang_String::length(s);
4316 typeArrayOop s_value = java_lang_String::value(s);
4317 int s_offset = java_lang_String::offset(s);
4318 const jchar* ret;
4319 if (s_len > 0) {
4320 ret = s_value->char_at_addr(s_offset);
4321 } else {
4322 ret = (jchar*) s_value->base(T_CHAR);
4323 }
4324 #ifndef USDT2
4325 DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);
4326 #else /* USDT2 */
4327 HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(
4328 (uint16_t *) ret);
4329 #endif /* USDT2 */
4330 return ret;
4331 JNI_END
4332
4333
4334 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))
4335 JNIWrapper("ReleaseStringCritical");
4336 #ifndef USDT2
4337 DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);
4338 #else /* USDT2 */
4339 HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(
4340 env, str, (uint16_t *) chars);
4341 #endif /* USDT2 */
4342 // The str and chars arguments are ignored
4343 GC_locker::unlock_critical(thread);
4344 #ifndef USDT2
4345 DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);
4346 #else /* USDT2 */
4347 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(
4348 );
4349 #endif /* USDT2 */
4350 JNI_END
4351
4352
4353 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))
4354 JNIWrapper("jni_NewWeakGlobalRef");
4355 #ifndef USDT2
4356 DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);
4357 #else /* USDT2 */
4358 HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(
4359 env, ref);
4360 #endif /* USDT2 */
4361 Handle ref_handle(thread, JNIHandles::resolve(ref));
4362 jweak ret = JNIHandles::make_weak_global(ref_handle);
4363 #ifndef USDT2
4364 DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);
4365 #else /* USDT2 */
4366 HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(
4367 ret);
4368 #endif /* USDT2 */
4369 return ret;
4370 JNI_END
4371
4372 // Must be JNI_ENTRY (with HandleMark)
4373 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))
4374 JNIWrapper("jni_DeleteWeakGlobalRef");
4375 #ifndef USDT2
4376 DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);
4377 #else /* USDT2 */
4378 HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(
4379 env, ref);
4380 #endif /* USDT2 */
4381 JNIHandles::destroy_weak_global(ref);
4382 #ifndef USDT2
4383 DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);
4384 #else /* USDT2 */
4385 HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(
4386 );
4387 #endif /* USDT2 */
4388 JNI_END
4389
4390
4391 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))
4392 JNIWrapper("jni_ExceptionCheck");
4393 #ifndef USDT2
4394 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);
4395 #else /* USDT2 */
4396 HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(
4397 env);
4398 #endif /* USDT2 */
4399 jni_check_async_exceptions(thread);
4400 jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;
4401 #ifndef USDT2
4402 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);
4403 #else /* USDT2 */
4404 HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(
4405 ret);
4406 #endif /* USDT2 */
4407 return ret;
4408 JNI_END
4409
4410
4411 // Initialization state for three routines below relating to
4412 // java.nio.DirectBuffers
4413 static jint directBufferSupportInitializeStarted = 0;
4414 static volatile jint directBufferSupportInitializeEnded = 0;
4415 static volatile jint directBufferSupportInitializeFailed = 0;
4416 static jclass bufferClass = NULL;
4417 static jclass directBufferClass = NULL;
4418 static jclass directByteBufferClass = NULL;
4419 static jmethodID directByteBufferConstructor = NULL;
4420 static jfieldID directBufferAddressField = NULL;
4421 static jfieldID bufferCapacityField = NULL;
4422
4423 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {
4424 Handle loader; // null (bootstrap) loader
4425 Handle protection_domain; // null protection domain
4426
4427 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
4428 jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
4429
4430 if (TraceClassResolution && result != NULL) {
4431 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
4432 }
4433 return result;
4434 }
4435
4436 // These lookups are done with the NULL (bootstrap) ClassLoader to
4437 // circumvent any security checks that would be done by jni_FindClass.
4438 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))
4439 {
4440 if ((bufferClass = lookupOne(env, "java/nio/Buffer", thread)) == NULL) { return false; }
4441 if ((directBufferClass = lookupOne(env, "sun/nio/ch/DirectBuffer", thread)) == NULL) { return false; }
4442 if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }
4443 return true;
4444 }
4445 JNI_END
4446
4447
4448 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {
4449 if (directBufferSupportInitializeFailed) {
4450 return false;
4451 }
4452
4453 if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {
4454 if (!lookupDirectBufferClasses(env)) {
4455 directBufferSupportInitializeFailed = 1;
4456 return false;
4457 }
4458
4459 // Make global references for these
4460 bufferClass = (jclass) env->NewGlobalRef(bufferClass);
4461 directBufferClass = (jclass) env->NewGlobalRef(directBufferClass);
4462 directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);
4463
4464 // Get needed field and method IDs
4465 directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");
4466 if (env->ExceptionCheck()) {
4467 env->ExceptionClear();
4468 directBufferSupportInitializeFailed = 1;
4469 return false;
4470 }
4471 directBufferAddressField = env->GetFieldID(bufferClass, "address", "J");
4472 if (env->ExceptionCheck()) {
4473 env->ExceptionClear();
4474 directBufferSupportInitializeFailed = 1;
4475 return false;
4476 }
4477 bufferCapacityField = env->GetFieldID(bufferClass, "capacity", "I");
4478 if (env->ExceptionCheck()) {
4479 env->ExceptionClear();
4480 directBufferSupportInitializeFailed = 1;
4481 return false;
4482 }
4483
4484 if ((directByteBufferConstructor == NULL) ||
4485 (directBufferAddressField == NULL) ||
4486 (bufferCapacityField == NULL)) {
4487 directBufferSupportInitializeFailed = 1;
4488 return false;
4489 }
4490
4491 directBufferSupportInitializeEnded = 1;
4492 } else {
4493 while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {
4494 // Set state as yield_all can call os:sleep. On Solaris, yield_all calls
4495 // os::sleep which requires the VM state transition. On other platforms, it
4496 // is not necessary. The following call to change the VM state is purposely
4497 // put inside the loop to avoid potential deadlock when multiple threads
4498 // try to call this method. See 6791815 for more details.
4499 ThreadInVMfromNative tivn(thread);
4500 os::yield_all();
4501 }
4502 }
4503
4504 return !directBufferSupportInitializeFailed;
4505 }
4506
4507 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)
4508 {
4509 // thread_from_jni_environment() will block if VM is gone.
4510 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4511
4512 JNIWrapper("jni_NewDirectByteBuffer");
4513 #ifndef USDT2
4514 DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);
4515 #else /* USDT2 */
4516 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(
4517 env, address, capacity);
4518 #endif /* USDT2 */
4519
4520 if (!directBufferSupportInitializeEnded) {
4521 if (!initializeDirectBufferSupport(env, thread)) {
4522 #ifndef USDT2
4523 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);
4524 #else /* USDT2 */
4525 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4526 NULL);
4527 #endif /* USDT2 */
4528 return NULL;
4529 }
4530 }
4531
4532 // Being paranoid about accidental sign extension on address
4533 jlong addr = (jlong) ((uintptr_t) address);
4534 // NOTE that package-private DirectByteBuffer constructor currently
4535 // takes int capacity
4536 jint cap = (jint) capacity;
4537 jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);
4538 #ifndef USDT2
4539 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);
4540 #else /* USDT2 */
4541 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4542 ret);
4543 #endif /* USDT2 */
4544 return ret;
4545 }
4546
4547 #ifndef USDT2
4548 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);
4549 #else /* USDT2 */
4550 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*
4551 , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));
4552 #endif /* USDT2 */
4553
4554 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)
4555 {
4556 // thread_from_jni_environment() will block if VM is gone.
4557 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4558
4559 JNIWrapper("jni_GetDirectBufferAddress");
4560 #ifndef USDT2
4561 DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);
4562 #else /* USDT2 */
4563 HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(
4564 env, buf);
4565 #endif /* USDT2 */
4566 void* ret = NULL;
4567 DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);
4568
4569 if (!directBufferSupportInitializeEnded) {
4570 if (!initializeDirectBufferSupport(env, thread)) {
4571 return 0;
4572 }
4573 }
4574
4575 if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {
4576 return 0;
4577 }
4578
4579 ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);
4580 return ret;
4581 }
4582
4583 #ifndef USDT2
4584 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);
4585 #else /* USDT2 */
4586 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong
4587 , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));
4588 #endif /* USDT2 */
4589
4590 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)
4591 {
4592 // thread_from_jni_environment() will block if VM is gone.
4593 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4594
4595 JNIWrapper("jni_GetDirectBufferCapacity");
4596 #ifndef USDT2
4597 DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);
4598 #else /* USDT2 */
4599 HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(
4600 env, buf);
4601 #endif /* USDT2 */
4602 jlong ret = -1;
4603 DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);
4604
4605 if (!directBufferSupportInitializeEnded) {
4606 if (!initializeDirectBufferSupport(env, thread)) {
4607 ret = 0;
4608 return ret;
4609 }
4610 }
4611
4612 if (buf == NULL) {
4613 return -1;
4614 }
4615
4616 if (!env->IsInstanceOf(buf, directBufferClass)) {
4617 return -1;
4618 }
4619
4620 // NOTE that capacity is currently an int in the implementation
4621 ret = env->GetIntField(buf, bufferCapacityField);
4622 return ret;
4623 }
4624
4625
4626 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))
4627 JNIWrapper("GetVersion");
4628 #ifndef USDT2
4629 DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);
4630 #else /* USDT2 */
4631 HOTSPOT_JNI_GETVERSION_ENTRY(
4632 env);
4633 #endif /* USDT2 */
4634 #ifndef USDT2
4635 DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);
4636 #else /* USDT2 */
4637 HOTSPOT_JNI_GETVERSION_RETURN(
4638 CurrentVersion);
4639 #endif /* USDT2 */
4640 return CurrentVersion;
4641 JNI_END
4642
4643 extern struct JavaVM_ main_vm;
4644
4645 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))
4646 JNIWrapper("jni_GetJavaVM");
4647 #ifndef USDT2
4648 DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);
4649 #else /* USDT2 */
4650 HOTSPOT_JNI_GETJAVAVM_ENTRY(
4651 env, (void **) vm);
4652 #endif /* USDT2 */
4653 *vm = (JavaVM *)(&main_vm);
4654 #ifndef USDT2
4655 DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);
4656 #else /* USDT2 */
4657 HOTSPOT_JNI_GETJAVAVM_RETURN(
4658 JNI_OK);
4659 #endif /* USDT2 */
4660 return JNI_OK;
4661 JNI_END
4662
4663 // Structure containing all jni functions
4664 struct JNINativeInterface_ jni_NativeInterface = {
4665 NULL,
4666 NULL,
4667 NULL,
4668
4669 NULL,
4670
4671 jni_GetVersion,
4672
4673 jni_DefineClass,
4674 jni_FindClass,
4675
4676 jni_FromReflectedMethod,
4677 jni_FromReflectedField,
4678
4679 jni_ToReflectedMethod,
4680
4681 jni_GetSuperclass,
4682 jni_IsAssignableFrom,
4683
4684 jni_ToReflectedField,
4685
4686 jni_Throw,
4687 jni_ThrowNew,
4688 jni_ExceptionOccurred,
4689 jni_ExceptionDescribe,
4690 jni_ExceptionClear,
4691 jni_FatalError,
4692
4693 jni_PushLocalFrame,
4694 jni_PopLocalFrame,
4695
4696 jni_NewGlobalRef,
4697 jni_DeleteGlobalRef,
4698 jni_DeleteLocalRef,
4699 jni_IsSameObject,
4700
4701 jni_NewLocalRef,
4702 jni_EnsureLocalCapacity,
4703
4704 jni_AllocObject,
4705 jni_NewObject,
4706 jni_NewObjectV,
4707 jni_NewObjectA,
4708
4709 jni_GetObjectClass,
4710 jni_IsInstanceOf,
4711
4712 jni_GetMethodID,
4713
4714 jni_CallObjectMethod,
4715 jni_CallObjectMethodV,
4716 jni_CallObjectMethodA,
4717 jni_CallBooleanMethod,
4718 jni_CallBooleanMethodV,
4719 jni_CallBooleanMethodA,
4720 jni_CallByteMethod,
4721 jni_CallByteMethodV,
4722 jni_CallByteMethodA,
4723 jni_CallCharMethod,
4724 jni_CallCharMethodV,
4725 jni_CallCharMethodA,
4726 jni_CallShortMethod,
4727 jni_CallShortMethodV,
4728 jni_CallShortMethodA,
4729 jni_CallIntMethod,
4730 jni_CallIntMethodV,
4731 jni_CallIntMethodA,
4732 jni_CallLongMethod,
4733 jni_CallLongMethodV,
4734 jni_CallLongMethodA,
4735 jni_CallFloatMethod,
4736 jni_CallFloatMethodV,
4737 jni_CallFloatMethodA,
4738 jni_CallDoubleMethod,
4739 jni_CallDoubleMethodV,
4740 jni_CallDoubleMethodA,
4741 jni_CallVoidMethod,
4742 jni_CallVoidMethodV,
4743 jni_CallVoidMethodA,
4744
4745 jni_CallNonvirtualObjectMethod,
4746 jni_CallNonvirtualObjectMethodV,
4747 jni_CallNonvirtualObjectMethodA,
4748 jni_CallNonvirtualBooleanMethod,
4749 jni_CallNonvirtualBooleanMethodV,
4750 jni_CallNonvirtualBooleanMethodA,
4751 jni_CallNonvirtualByteMethod,
4752 jni_CallNonvirtualByteMethodV,
4753 jni_CallNonvirtualByteMethodA,
4754 jni_CallNonvirtualCharMethod,
4755 jni_CallNonvirtualCharMethodV,
4756 jni_CallNonvirtualCharMethodA,
4757 jni_CallNonvirtualShortMethod,
4758 jni_CallNonvirtualShortMethodV,
4759 jni_CallNonvirtualShortMethodA,
4760 jni_CallNonvirtualIntMethod,
4761 jni_CallNonvirtualIntMethodV,
4762 jni_CallNonvirtualIntMethodA,
4763 jni_CallNonvirtualLongMethod,
4764 jni_CallNonvirtualLongMethodV,
4765 jni_CallNonvirtualLongMethodA,
4766 jni_CallNonvirtualFloatMethod,
4767 jni_CallNonvirtualFloatMethodV,
4768 jni_CallNonvirtualFloatMethodA,
4769 jni_CallNonvirtualDoubleMethod,
4770 jni_CallNonvirtualDoubleMethodV,
4771 jni_CallNonvirtualDoubleMethodA,
4772 jni_CallNonvirtualVoidMethod,
4773 jni_CallNonvirtualVoidMethodV,
4774 jni_CallNonvirtualVoidMethodA,
4775
4776 jni_GetFieldID,
4777
4778 jni_GetObjectField,
4779 jni_GetBooleanField,
4780 jni_GetByteField,
4781 jni_GetCharField,
4782 jni_GetShortField,
4783 jni_GetIntField,
4784 jni_GetLongField,
4785 jni_GetFloatField,
4786 jni_GetDoubleField,
4787
4788 jni_SetObjectField,
4789 jni_SetBooleanField,
4790 jni_SetByteField,
4791 jni_SetCharField,
4792 jni_SetShortField,
4793 jni_SetIntField,
4794 jni_SetLongField,
4795 jni_SetFloatField,
4796 jni_SetDoubleField,
4797
4798 jni_GetStaticMethodID,
4799
4800 jni_CallStaticObjectMethod,
4801 jni_CallStaticObjectMethodV,
4802 jni_CallStaticObjectMethodA,
4803 jni_CallStaticBooleanMethod,
4804 jni_CallStaticBooleanMethodV,
4805 jni_CallStaticBooleanMethodA,
4806 jni_CallStaticByteMethod,
4807 jni_CallStaticByteMethodV,
4808 jni_CallStaticByteMethodA,
4809 jni_CallStaticCharMethod,
4810 jni_CallStaticCharMethodV,
4811 jni_CallStaticCharMethodA,
4812 jni_CallStaticShortMethod,
4813 jni_CallStaticShortMethodV,
4814 jni_CallStaticShortMethodA,
4815 jni_CallStaticIntMethod,
4816 jni_CallStaticIntMethodV,
4817 jni_CallStaticIntMethodA,
4818 jni_CallStaticLongMethod,
4819 jni_CallStaticLongMethodV,
4820 jni_CallStaticLongMethodA,
4821 jni_CallStaticFloatMethod,
4822 jni_CallStaticFloatMethodV,
4823 jni_CallStaticFloatMethodA,
4824 jni_CallStaticDoubleMethod,
4825 jni_CallStaticDoubleMethodV,
4826 jni_CallStaticDoubleMethodA,
4827 jni_CallStaticVoidMethod,
4828 jni_CallStaticVoidMethodV,
4829 jni_CallStaticVoidMethodA,
4830
4831 jni_GetStaticFieldID,
4832
4833 jni_GetStaticObjectField,
4834 jni_GetStaticBooleanField,
4835 jni_GetStaticByteField,
4836 jni_GetStaticCharField,
4837 jni_GetStaticShortField,
4838 jni_GetStaticIntField,
4839 jni_GetStaticLongField,
4840 jni_GetStaticFloatField,
4841 jni_GetStaticDoubleField,
4842
4843 jni_SetStaticObjectField,
4844 jni_SetStaticBooleanField,
4845 jni_SetStaticByteField,
4846 jni_SetStaticCharField,
4847 jni_SetStaticShortField,
4848 jni_SetStaticIntField,
4849 jni_SetStaticLongField,
4850 jni_SetStaticFloatField,
4851 jni_SetStaticDoubleField,
4852
4853 jni_NewString,
4854 jni_GetStringLength,
4855 jni_GetStringChars,
4856 jni_ReleaseStringChars,
4857
4858 jni_NewStringUTF,
4859 jni_GetStringUTFLength,
4860 jni_GetStringUTFChars,
4861 jni_ReleaseStringUTFChars,
4862
4863 jni_GetArrayLength,
4864
4865 jni_NewObjectArray,
4866 jni_GetObjectArrayElement,
4867 jni_SetObjectArrayElement,
4868
4869 jni_NewBooleanArray,
4870 jni_NewByteArray,
4871 jni_NewCharArray,
4872 jni_NewShortArray,
4873 jni_NewIntArray,
4874 jni_NewLongArray,
4875 jni_NewFloatArray,
4876 jni_NewDoubleArray,
4877
4878 jni_GetBooleanArrayElements,
4879 jni_GetByteArrayElements,
4880 jni_GetCharArrayElements,
4881 jni_GetShortArrayElements,
4882 jni_GetIntArrayElements,
4883 jni_GetLongArrayElements,
4884 jni_GetFloatArrayElements,
4885 jni_GetDoubleArrayElements,
4886
4887 jni_ReleaseBooleanArrayElements,
4888 jni_ReleaseByteArrayElements,
4889 jni_ReleaseCharArrayElements,
4890 jni_ReleaseShortArrayElements,
4891 jni_ReleaseIntArrayElements,
4892 jni_ReleaseLongArrayElements,
4893 jni_ReleaseFloatArrayElements,
4894 jni_ReleaseDoubleArrayElements,
4895
4896 jni_GetBooleanArrayRegion,
4897 jni_GetByteArrayRegion,
4898 jni_GetCharArrayRegion,
4899 jni_GetShortArrayRegion,
4900 jni_GetIntArrayRegion,
4901 jni_GetLongArrayRegion,
4902 jni_GetFloatArrayRegion,
4903 jni_GetDoubleArrayRegion,
4904
4905 jni_SetBooleanArrayRegion,
4906 jni_SetByteArrayRegion,
4907 jni_SetCharArrayRegion,
4908 jni_SetShortArrayRegion,
4909 jni_SetIntArrayRegion,
4910 jni_SetLongArrayRegion,
4911 jni_SetFloatArrayRegion,
4912 jni_SetDoubleArrayRegion,
4913
4914 jni_RegisterNatives,
4915 jni_UnregisterNatives,
4916
4917 jni_MonitorEnter,
4918 jni_MonitorExit,
4919
4920 jni_GetJavaVM,
4921
4922 jni_GetStringRegion,
4923 jni_GetStringUTFRegion,
4924
4925 jni_GetPrimitiveArrayCritical,
4926 jni_ReleasePrimitiveArrayCritical,
4927
4928 jni_GetStringCritical,
4929 jni_ReleaseStringCritical,
4930
4931 jni_NewWeakGlobalRef,
4932 jni_DeleteWeakGlobalRef,
4933
4934 jni_ExceptionCheck,
4935
4936 jni_NewDirectByteBuffer,
4937 jni_GetDirectBufferAddress,
4938 jni_GetDirectBufferCapacity,
4939
4940 // New 1_6 features
4941
4942 jni_GetObjectRefType
4943 };
4944
4945
4946 // For jvmti use to modify jni function table.
4947 // Java threads in native contiues to run until it is transitioned
4948 // to VM at safepoint. Before the transition or before it is blocked
4949 // for safepoint it may access jni function table. VM could crash if
4950 // any java thread access the jni function table in the middle of memcpy.
4951 // To avoid this each function pointers are copied automically.
4952 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {
4953 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
4954 intptr_t *a = (intptr_t *) jni_functions();
4955 intptr_t *b = (intptr_t *) new_jni_NativeInterface;
4956 for (uint i=0; i < sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {
4957 Atomic::store_ptr(*b++, a++);
4958 }
4959 }
4960
4961 void quicken_jni_functions() {
4962 // Replace Get<Primitive>Field with fast versions
4963 if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()
4964 && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls
4965 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)
4966 // windows x86 currently needs SEH wrapper and the gain of the fast
4967 // versions currently isn't certain for server vm on uniprocessor.
4968 && os::is_MP()
4969 #endif
4970 ) {
4971 address func;
4972 func = JNI_FastGetField::generate_fast_get_boolean_field();
4973 if (func != (address)-1) {
4974 jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;
4975 }
4976 func = JNI_FastGetField::generate_fast_get_byte_field();
4977 if (func != (address)-1) {
4978 jni_NativeInterface.GetByteField = (GetByteField_t)func;
4979 }
4980 func = JNI_FastGetField::generate_fast_get_char_field();
4981 if (func != (address)-1) {
4982 jni_NativeInterface.GetCharField = (GetCharField_t)func;
4983 }
4984 func = JNI_FastGetField::generate_fast_get_short_field();
4985 if (func != (address)-1) {
4986 jni_NativeInterface.GetShortField = (GetShortField_t)func;
4987 }
4988 func = JNI_FastGetField::generate_fast_get_int_field();
4989 if (func != (address)-1) {
4990 jni_NativeInterface.GetIntField = (GetIntField_t)func;
4991 }
4992 func = JNI_FastGetField::generate_fast_get_long_field();
4993 if (func != (address)-1) {
4994 jni_NativeInterface.GetLongField = (GetLongField_t)func;
4995 }
4996 func = JNI_FastGetField::generate_fast_get_float_field();
4997 if (func != (address)-1) {
4998 jni_NativeInterface.GetFloatField = (GetFloatField_t)func;
4999 }
5000 func = JNI_FastGetField::generate_fast_get_double_field();
5001 if (func != (address)-1) {
5002 jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;
5003 }
5004 }
5005 }
5006
5007 // Returns the function structure
5008 struct JNINativeInterface_* jni_functions() {
5009 #if INCLUDE_JNI_CHECK
5010 if (CheckJNICalls) return jni_functions_check();
5011 #endif // INCLUDE_JNI_CHECK
5012 return &jni_NativeInterface;
5013 }
5014
5015 // Returns the function structure
5016 struct JNINativeInterface_* jni_functions_nocheck() {
5017 return &jni_NativeInterface;
5018 }
5019
5020
5021 // Invocation API
5022
5023
5024 // Forward declaration
5025 extern const struct JNIInvokeInterface_ jni_InvokeInterface;
5026
5027 // Global invocation API vars
5028 volatile jint vm_created = 0;
5029 // Indicate whether it is safe to recreate VM
5030 volatile jint safe_to_recreate_vm = 1;
5031 struct JavaVM_ main_vm = {&jni_InvokeInterface};
5032
5033
5034 #define JAVASTACKSIZE (400 * 1024) /* Default size of a thread java stack */
5035 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };
5036
5037 #ifndef USDT2
5038 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);
5039 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);
5040 #else /* USDT2 */
5041 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint
5042 , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));
5043 #endif /* USDT2 */
5044
5045 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {
5046 #ifndef USDT2
5047 HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);
5048 #else /* USDT2 */
5049 HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(
5050 args_);
5051 #endif /* USDT2 */
5052 JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;
5053 jint ret = JNI_ERR;
5054 DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);
5055
5056 if (Threads::is_supported_jni_version(args->version)) {
5057 ret = JNI_OK;
5058 }
5059 // 1.1 style no longer supported in hotspot.
5060 // According the JNI spec, we should update args->version on return.
5061 // We also use the structure to communicate with launcher about default
5062 // stack size.
5063 if (args->version == JNI_VERSION_1_1) {
5064 args->version = JNI_VERSION_1_2;
5065 // javaStackSize is int in arguments structure
5066 assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");
5067 args->javaStackSize = (jint)(ThreadStackSize * K);
5068 }
5069 return ret;
5070 }
5071
5072 #ifndef PRODUCT
5073
5074 #include "gc_implementation/shared/gcTimer.hpp"
5075 #include "gc_interface/collectedHeap.hpp"
5076 #if INCLUDE_ALL_GCS
5077 #include "gc_implementation/g1/heapRegionRemSet.hpp"
5078 #endif
5079 #include "memory/guardedMemory.hpp"
5080 #include "utilities/quickSort.hpp"
5081 #include "utilities/ostream.hpp"
5082 #if INCLUDE_VM_STRUCTS
5083 #include "runtime/vmStructs.hpp"
5084 #endif
5085
5086 #define run_unit_test(unit_test_function_call) \
5087 tty->print_cr("Running test: " #unit_test_function_call); \
5088 unit_test_function_call
5089
5090 // Forward declaration
5091 void TestOS_test();
5092 void TestReservedSpace_test();
5093 void TestReserveMemorySpecial_test();
5094 void TestVirtualSpace_test();
5095 void TestMetaspaceAux_test();
5096 void SpaceManager_test_adjust_initial_chunk_size();
5097 void TestMetachunk_test();
5098 void TestVirtualSpaceNode_test();
5099 void TestNewSize_test();
5100 void TestKlass_test();
5101 void Test_linked_list();
5102 void TestChunkedList_test();
5103 #if INCLUDE_ALL_GCS
5104 void TestOldFreeSpaceCalculation_test();
5105 void TestG1BiasedArray_test();
5106 void TestBufferingOopClosure_test();
5107 void TestCodeCacheRemSet_test();
5108 void FreeRegionList_test();
5109 #endif
5110
5111 void execute_internal_vm_tests() {
5112 if (ExecuteInternalVMTests) {
5113 tty->print_cr("Running internal VM tests");
5114 run_unit_test(TestOS_test());
5115 run_unit_test(TestReservedSpace_test());
5116 run_unit_test(TestReserveMemorySpecial_test());
5117 run_unit_test(TestVirtualSpace_test());
5118 run_unit_test(TestMetaspaceAux_test());
5119 run_unit_test(TestMetachunk_test());
5120 run_unit_test(TestVirtualSpaceNode_test());
5121 run_unit_test(GlobalDefinitions::test_globals());
5122 run_unit_test(GCTimerAllTest::all());
5123 run_unit_test(arrayOopDesc::test_max_array_length());
5124 run_unit_test(CollectedHeap::test_is_in());
5125 run_unit_test(QuickSort::test_quick_sort());
5126 run_unit_test(GuardedMemory::test_guarded_memory());
5127 run_unit_test(AltHashing::test_alt_hash());
5128 run_unit_test(test_loggc_filename());
5129 run_unit_test(TestNewSize_test());
5130 run_unit_test(TestKlass_test());
5131 run_unit_test(Test_linked_list());
5132 run_unit_test(TestChunkedList_test());
5133 run_unit_test(ObjectMonitor::sanity_checks());
5134 #if INCLUDE_VM_STRUCTS
5135 run_unit_test(VMStructs::test());
5136 #endif
5137 #if INCLUDE_ALL_GCS
5138 run_unit_test(TestOldFreeSpaceCalculation_test());
5139 run_unit_test(TestG1BiasedArray_test());
5140 run_unit_test(HeapRegionRemSet::test_prt());
5141 run_unit_test(SpaceManager_test_adjust_initial_chunk_size());
5142 run_unit_test(TestBufferingOopClosure_test());
5143 run_unit_test(TestCodeCacheRemSet_test());
5144 if (UseG1GC) {
5145 run_unit_test(FreeRegionList_test());
5146 }
5147 #endif
5148 tty->print_cr("All internal VM tests passed");
5149 }
5150 }
5151
5152 #undef run_unit_test
5153
5154 #endif
5155
5156 #ifndef USDT2
5157 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5158 DT_RETURN_MARK_DECL(CreateJavaVM, jint);
5159 #else /* USDT2 */
5160 DT_RETURN_MARK_DECL(CreateJavaVM, jint
5161 , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));
5162 #endif /* USDT2 */
5163
5164 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {
5165 #ifndef USDT2
5166 HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5167 #else /* USDT2 */
5168 HOTSPOT_JNI_CREATEJAVAVM_ENTRY(
5169 (void **) vm, penv, args);
5170 #endif /* USDT2 */
5171
5172 jint result = JNI_ERR;
5173 DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);
5174
5175 // We're about to use Atomic::xchg for synchronization. Some Zero
5176 // platforms use the GCC builtin __sync_lock_test_and_set for this,
5177 // but __sync_lock_test_and_set is not guaranteed to do what we want
5178 // on all architectures. So we check it works before relying on it.
5179 #if defined(ZERO) && defined(ASSERT)
5180 {
5181 jint a = 0xcafebabe;
5182 jint b = Atomic::xchg(0xdeadbeef, &a);
5183 void *c = &a;
5184 void *d = Atomic::xchg_ptr(&b, &c);
5185 assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");
5186 assert(c == &b && d == &a, "Atomic::xchg_ptr() works");
5187 }
5188 #endif // ZERO && ASSERT
5189
5190 // At the moment it's only possible to have one Java VM,
5191 // since some of the runtime state is in global variables.
5192
5193 // We cannot use our mutex locks here, since they only work on
5194 // Threads. We do an atomic compare and exchange to ensure only
5195 // one thread can call this method at a time
5196
5197 // We use Atomic::xchg rather than Atomic::add/dec since on some platforms
5198 // the add/dec implementations are dependent on whether we are running
5199 // on a multiprocessor, and at this stage of initialization the os::is_MP
5200 // function used to determine this will always return false. Atomic::xchg
5201 // does not have this problem.
5202 if (Atomic::xchg(1, &vm_created) == 1) {
5203 return JNI_EEXIST; // already created, or create attempt in progress
5204 }
5205 if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {
5206 return JNI_ERR; // someone tried and failed and retry not allowed.
5207 }
5208
5209 assert(vm_created == 1, "vm_created is true during the creation");
5210
5211 /**
5212 * Certain errors during initialization are recoverable and do not
5213 * prevent this method from being called again at a later time
5214 * (perhaps with different arguments). However, at a certain
5215 * point during initialization if an error occurs we cannot allow
5216 * this function to be called again (or it will crash). In those
5217 * situations, the 'canTryAgain' flag is set to false, which atomically
5218 * sets safe_to_recreate_vm to 1, such that any new call to
5219 * JNI_CreateJavaVM will immediately fail using the above logic.
5220 */
5221 bool can_try_again = true;
5222
5223 result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);
5224 if (result == JNI_OK) {
5225 JavaThread *thread = JavaThread::current();
5226 /* thread is thread_in_vm here */
5227 *vm = (JavaVM *)(&main_vm);
5228 *(JNIEnv**)penv = thread->jni_environment();
5229
5230 // Tracks the time application was running before GC
5231 RuntimeService::record_application_start();
5232
5233 // Notify JVMTI
5234 if (JvmtiExport::should_post_thread_life()) {
5235 JvmtiExport::post_thread_start(thread);
5236 }
5237
5238 EventThreadStart event;
5239 if (event.should_commit()) {
5240 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));
5241 event.commit();
5242 }
5243
5244 #ifndef PRODUCT
5245 #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED
5246 #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()
5247 #endif
5248
5249 // Check if we should compile all classes on bootclasspath
5250 if (CompileTheWorld) ClassLoader::compile_the_world();
5251 if (ReplayCompiles) ciReplay::replay(thread);
5252
5253 // Some platforms (like Win*) need a wrapper around these test
5254 // functions in order to properly handle error conditions.
5255 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);
5256 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);
5257 #endif
5258
5259 // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.
5260 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5261 } else {
5262 if (can_try_again) {
5263 // reset safe_to_recreate_vm to 1 so that retrial would be possible
5264 safe_to_recreate_vm = 1;
5265 }
5266
5267 // Creation failed. We must reset vm_created
5268 *vm = 0;
5269 *(JNIEnv**)penv = 0;
5270 // reset vm_created last to avoid race condition. Use OrderAccess to
5271 // control both compiler and architectural-based reordering.
5272 OrderAccess::release_store(&vm_created, 0);
5273 }
5274
5275 return result;
5276 }
5277
5278 #ifndef USDT2
5279 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \
5280 JavaVM**, jsize, jsize*);
5281 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);
5282 #endif /* !USDT2 */
5283
5284 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {
5285 // See bug 4367188, the wrapper can sometimes cause VM crashes
5286 // JNIWrapper("GetCreatedJavaVMs");
5287 #ifndef USDT2
5288 HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \
5289 vm_buf, bufLen, numVMs);
5290 #else /* USDT2 */
5291 HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(
5292 (void **) vm_buf, bufLen, (uintptr_t *) numVMs);
5293 #endif /* USDT2 */
5294 if (vm_created) {
5295 if (numVMs != NULL) *numVMs = 1;
5296 if (bufLen > 0) *vm_buf = (JavaVM *)(&main_vm);
5297 } else {
5298 if (numVMs != NULL) *numVMs = 0;
5299 }
5300 #ifndef USDT2
5301 HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);
5302 #else /* USDT2 */
5303 HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(
5304 JNI_OK);
5305 #endif /* USDT2 */
5306 return JNI_OK;
5307 }
5308
5309 extern "C" {
5310
5311 #ifndef USDT2
5312 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);
5313 #else /* USDT2 */
5314 DT_RETURN_MARK_DECL(DestroyJavaVM, jint
5315 , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));
5316 #endif /* USDT2 */
5317
5318 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {
5319 #ifndef USDT2
5320 DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);
5321 #else /* USDT2 */
5322 HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(
5323 vm);
5324 #endif /* USDT2 */
5325 jint res = JNI_ERR;
5326 DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);
5327
5328 if (!vm_created) {
5329 res = JNI_ERR;
5330 return res;
5331 }
5332
5333 JNIWrapper("DestroyJavaVM");
5334 JNIEnv *env;
5335 JavaVMAttachArgs destroyargs;
5336 destroyargs.version = CurrentVersion;
5337 destroyargs.name = (char *)"DestroyJavaVM";
5338 destroyargs.group = NULL;
5339 res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);
5340 if (res != JNI_OK) {
5341 return res;
5342 }
5343
5344 // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.
5345 JavaThread* thread = JavaThread::current();
5346 ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5347 if (Threads::destroy_vm()) {
5348 // Should not change thread state, VM is gone
5349 vm_created = false;
5350 res = JNI_OK;
5351 return res;
5352 } else {
5353 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5354 res = JNI_ERR;
5355 return res;
5356 }
5357 }
5358
5359
5360 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {
5361 JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;
5362
5363 // Check below commented out from JDK1.2fcs as well
5364 /*
5365 if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {
5366 return JNI_EVERSION;
5367 }
5368 */
5369
5370 Thread* t = ThreadLocalStorage::get_thread_slow();
5371 if (t != NULL) {
5372 // If the thread has been attached this operation is a no-op
5373 *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();
5374 return JNI_OK;
5375 }
5376
5377 // Create a thread and mark it as attaching so it will be skipped by the
5378 // ThreadsListEnumerator - see CR 6404306
5379 JavaThread* thread = new JavaThread(true);
5380
5381 // Set correct safepoint info. The thread is going to call into Java when
5382 // initializing the Java level thread object. Hence, the correct state must
5383 // be set in order for the Safepoint code to deal with it correctly.
5384 thread->set_thread_state(_thread_in_vm);
5385 // Must do this before initialize_thread_local_storage
5386 thread->record_stack_base_and_size();
5387
5388 thread->initialize_thread_local_storage();
5389
5390 if (!os::create_attached_thread(thread)) {
5391 delete thread;
5392 return JNI_ERR;
5393 }
5394 // Enable stack overflow checks
5395 thread->create_stack_guard_pages();
5396
5397 thread->initialize_tlab();
5398
5399 thread->cache_global_variables();
5400
5401 // Crucial that we do not have a safepoint check for this thread, since it has
5402 // not been added to the Thread list yet.
5403 { Threads_lock->lock_without_safepoint_check();
5404 // This must be inside this lock in order to get FullGCALot to work properly, i.e., to
5405 // avoid this thread trying to do a GC before it is added to the thread-list
5406 thread->set_active_handles(JNIHandleBlock::allocate_block());
5407 Threads::add(thread, daemon);
5408 Threads_lock->unlock();
5409 }
5410 // Create thread group and name info from attach arguments
5411 oop group = NULL;
5412 char* thread_name = NULL;
5413 if (args != NULL && Threads::is_supported_jni_version(args->version)) {
5414 group = JNIHandles::resolve(args->group);
5415 thread_name = args->name; // may be NULL
5416 }
5417 if (group == NULL) group = Universe::main_thread_group();
5418
5419 // Create Java level thread object and attach it to this thread
5420 bool attach_failed = false;
5421 {
5422 EXCEPTION_MARK;
5423 HandleMark hm(THREAD);
5424 Handle thread_group(THREAD, group);
5425 thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);
5426 if (HAS_PENDING_EXCEPTION) {
5427 CLEAR_PENDING_EXCEPTION;
5428 // cleanup outside the handle mark.
5429 attach_failed = true;
5430 }
5431 }
5432
5433 if (attach_failed) {
5434 // Added missing cleanup
5435 thread->cleanup_failed_attach_current_thread();
5436 return JNI_ERR;
5437 }
5438
5439 // mark the thread as no longer attaching
5440 // this uses a fence to push the change through so we don't have
5441 // to regrab the threads_lock
5442 thread->set_done_attaching_via_jni();
5443
5444 // Set java thread status.
5445 java_lang_Thread::set_thread_status(thread->threadObj(),
5446 java_lang_Thread::RUNNABLE);
5447
5448 // Notify the debugger
5449 if (JvmtiExport::should_post_thread_life()) {
5450 JvmtiExport::post_thread_start(thread);
5451 }
5452
5453 EventThreadStart event;
5454 if (event.should_commit()) {
5455 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));
5456 event.commit();
5457 }
5458
5459 *(JNIEnv**)penv = thread->jni_environment();
5460
5461 // Now leaving the VM, so change thread_state. This is normally automatically taken care
5462 // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by
5463 // using ThreadStateTransition::transition, we do a callback to the safepoint code if
5464 // needed.
5465
5466 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5467
5468 // Perform any platform dependent FPU setup
5469 os::setup_fpu();
5470
5471 return JNI_OK;
5472 }
5473
5474
5475 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {
5476 #ifndef USDT2
5477 DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);
5478 #else /* USDT2 */
5479 HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(
5480 vm, penv, _args);
5481 #endif /* USDT2 */
5482 if (!vm_created) {
5483 #ifndef USDT2
5484 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);
5485 #else /* USDT2 */
5486 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5487 (uint32_t) JNI_ERR);
5488 #endif /* USDT2 */
5489 return JNI_ERR;
5490 }
5491
5492 JNIWrapper("AttachCurrentThread");
5493 jint ret = attach_current_thread(vm, penv, _args, false);
5494 #ifndef USDT2
5495 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);
5496 #else /* USDT2 */
5497 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5498 ret);
5499 #endif /* USDT2 */
5500 return ret;
5501 }
5502
5503
5504 jint JNICALL jni_DetachCurrentThread(JavaVM *vm) {
5505 #ifndef USDT2
5506 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);
5507 #else /* USDT2 */
5508 HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(
5509 vm);
5510 #endif /* USDT2 */
5511 VM_Exit::block_if_vm_exited();
5512
5513 JNIWrapper("DetachCurrentThread");
5514
5515 // If the thread has been deattacted the operations is a no-op
5516 if (ThreadLocalStorage::thread() == NULL) {
5517 #ifndef USDT2
5518 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5519 #else /* USDT2 */
5520 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5521 JNI_OK);
5522 #endif /* USDT2 */
5523 return JNI_OK;
5524 }
5525
5526 JavaThread* thread = JavaThread::current();
5527 if (thread->has_last_Java_frame()) {
5528 #ifndef USDT2
5529 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);
5530 #else /* USDT2 */
5531 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5532 (uint32_t) JNI_ERR);
5533 #endif /* USDT2 */
5534 // Can't detach a thread that's running java, that can't work.
5535 return JNI_ERR;
5536 }
5537
5538 // Safepoint support. Have to do call-back to safepoint code, if in the
5539 // middel of a safepoint operation
5540 ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5541
5542 // XXX: Note that JavaThread::exit() call below removes the guards on the
5543 // stack pages set up via enable_stack_{red,yellow}_zone() calls
5544 // above in jni_AttachCurrentThread. Unfortunately, while the setting
5545 // of the guards is visible in jni_AttachCurrentThread above,
5546 // the removal of the guards is buried below in JavaThread::exit()
5547 // here. The abstraction should be more symmetrically either exposed
5548 // or hidden (e.g. it could probably be hidden in the same
5549 // (platform-dependent) methods where we do alternate stack
5550 // maintenance work?)
5551 thread->exit(false, JavaThread::jni_detach);
5552 delete thread;
5553
5554 #ifndef USDT2
5555 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5556 #else /* USDT2 */
5557 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5558 JNI_OK);
5559 #endif /* USDT2 */
5560 return JNI_OK;
5561 }
5562
5563 #ifndef USDT2
5564 DT_RETURN_MARK_DECL(GetEnv, jint);
5565 #else /* USDT2 */
5566 DT_RETURN_MARK_DECL(GetEnv, jint
5567 , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));
5568 #endif /* USDT2 */
5569
5570 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {
5571 #ifndef USDT2
5572 DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);
5573 #else /* USDT2 */
5574 HOTSPOT_JNI_GETENV_ENTRY(
5575 vm, penv, version);
5576 #endif /* USDT2 */
5577 jint ret = JNI_ERR;
5578 DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);
5579
5580 if (!vm_created) {
5581 *penv = NULL;
5582 ret = JNI_EDETACHED;
5583 return ret;
5584 }
5585
5586 if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {
5587 return ret;
5588 }
5589
5590 #ifndef JVMPI_VERSION_1
5591 // need these in order to be polite about older agents
5592 #define JVMPI_VERSION_1 ((jint)0x10000001)
5593 #define JVMPI_VERSION_1_1 ((jint)0x10000002)
5594 #define JVMPI_VERSION_1_2 ((jint)0x10000003)
5595 #endif // !JVMPI_VERSION_1
5596
5597 Thread* thread = ThreadLocalStorage::thread();
5598 if (thread != NULL && thread->is_Java_thread()) {
5599 if (Threads::is_supported_jni_version_including_1_1(version)) {
5600 *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();
5601 ret = JNI_OK;
5602 return ret;
5603
5604 } else if (version == JVMPI_VERSION_1 ||
5605 version == JVMPI_VERSION_1_1 ||
5606 version == JVMPI_VERSION_1_2) {
5607 tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");
5608 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5609 ret = JNI_EVERSION;
5610 return ret;
5611 } else if (JvmtiExport::is_jvmdi_version(version)) {
5612 tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");
5613 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5614 ret = JNI_EVERSION;
5615 return ret;
5616 } else {
5617 *penv = NULL;
5618 ret = JNI_EVERSION;
5619 return ret;
5620 }
5621 } else {
5622 *penv = NULL;
5623 ret = JNI_EDETACHED;
5624 return ret;
5625 }
5626 }
5627
5628
5629 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {
5630 #ifndef USDT2
5631 DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);
5632 #else /* USDT2 */
5633 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(
5634 vm, penv, _args);
5635 #endif /* USDT2 */
5636 if (!vm_created) {
5637 #ifndef USDT2
5638 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);
5639 #else /* USDT2 */
5640 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5641 (uint32_t) JNI_ERR);
5642 #endif /* USDT2 */
5643 return JNI_ERR;
5644 }
5645
5646 JNIWrapper("AttachCurrentThreadAsDaemon");
5647 jint ret = attach_current_thread(vm, penv, _args, true);
5648 #ifndef USDT2
5649 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);
5650 #else /* USDT2 */
5651 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5652 ret);
5653 #endif /* USDT2 */
5654 return ret;
5655 }
5656
5657
5658 } // End extern "C"
5659
5660 const struct JNIInvokeInterface_ jni_InvokeInterface = {
5661 NULL,
5662 NULL,
5663 NULL,
5664
5665 jni_DestroyJavaVM,
5666 jni_AttachCurrentThread,
5667 jni_DetachCurrentThread,
5668 jni_GetEnv,
5669 jni_AttachCurrentThreadAsDaemon
5670 };