1 /*
2 * Copyright (c) 1997, 2018, 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 "jfr/jfrEvents.hpp"
36 #include "jfr/support/jfrThreadId.hpp"
37 #include "utilities/macros.hpp"
38 #include "utilities/ostream.hpp"
39 #if INCLUDE_ALL_GCS
40 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
41 #endif // INCLUDE_ALL_GCS
42 #include "memory/allocation.hpp"
43 #include "memory/allocation.inline.hpp"
44 #include "memory/gcLocker.inline.hpp"
45 #include "memory/oopFactory.hpp"
46 #include "memory/universe.inline.hpp"
47 #include "oops/instanceKlass.hpp"
48 #include "oops/instanceOop.hpp"
49 #include "oops/markOop.hpp"
50 #include "oops/method.hpp"
51 #include "oops/objArrayKlass.hpp"
52 #include "oops/objArrayOop.hpp"
53 #include "oops/oop.inline.hpp"
54 #include "oops/symbol.hpp"
55 #include "oops/typeArrayKlass.hpp"
56 #include "oops/typeArrayOop.hpp"
57 #include "prims/jni.h"
58 #include "prims/jniCheck.hpp"
59 #include "prims/jniExport.hpp"
60 #include "prims/jniFastGetField.hpp"
61 #include "prims/jvm.h"
62 #include "prims/jvm_misc.hpp"
63 #include "prims/jvmtiExport.hpp"
64 #include "prims/jvmtiThreadState.hpp"
65 #include "runtime/compilationPolicy.hpp"
66 #include "runtime/fieldDescriptor.hpp"
67 #include "runtime/fprofiler.hpp"
68 #include "runtime/handles.inline.hpp"
69 #include "runtime/interfaceSupport.hpp"
70 #include "runtime/java.hpp"
71 #include "runtime/javaCalls.hpp"
72 #include "runtime/jfieldIDWorkaround.hpp"
73 #include "runtime/orderAccess.inline.hpp"
74 #include "runtime/reflection.hpp"
75 #include "runtime/sharedRuntime.hpp"
76 #include "runtime/signature.hpp"
77 #include "runtime/thread.inline.hpp"
78 #include "runtime/vm_operations.hpp"
79 #include "services/memTracker.hpp"
80 #include "services/runtimeService.hpp"
81 #include "utilities/defaultStream.hpp"
82 #include "utilities/dtrace.hpp"
83 #include "utilities/events.hpp"
84 #include "utilities/histogram.hpp"
85 #ifdef TARGET_OS_FAMILY_linux
86 # include "os_linux.inline.hpp"
87 #endif
88 #ifdef TARGET_OS_FAMILY_solaris
89 # include "os_solaris.inline.hpp"
90 #endif
91 #ifdef TARGET_OS_FAMILY_windows
92 # include "os_windows.inline.hpp"
93 #endif
94 #ifdef TARGET_OS_FAMILY_bsd
95 # include "os_bsd.inline.hpp"
96 #endif
97
98 static jint CurrentVersion = JNI_VERSION_1_8;
99
100
101 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace
102 // '-return' probe regardless of the return path is taken out of the function.
103 // Methods that have multiple return paths use this to avoid having to
104 // instrument each return path. Methods that use CHECK or THROW must use this
105 // since those macros can cause an immedate uninstrumented return.
106 //
107 // In order to get the return value, a reference to the variable containing
108 // the return value must be passed to the contructor of the object, and
109 // the return value must be set before return (since the mark object has
110 // a reference to it).
111 //
112 // Example:
113 // DT_RETURN_MARK_DECL(SomeFunc, int);
114 // JNI_ENTRY(int, SomeFunc, ...)
115 // int return_value = 0;
116 // DT_RETURN_MARK(SomeFunc, int, (const int&)return_value);
117 // foo(CHECK_0)
118 // return_value = 5;
119 // return return_value;
120 // JNI_END
121 #ifndef USDT2
122 #define DT_RETURN_MARK_DECL(name, type) \
123 HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type); \
124 DTRACE_ONLY( \
125 class DTraceReturnProbeMark_##name { \
126 public: \
127 const type& _ret_ref; \
128 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \
129 ~DTraceReturnProbeMark_##name() { \
130 HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref); \
131 } \
132 } \
133 )
134 // Void functions are simpler since there's no return value
135 #define DT_VOID_RETURN_MARK_DECL(name) \
136 HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return); \
137 DTRACE_ONLY( \
138 class DTraceReturnProbeMark_##name { \
139 public: \
140 ~DTraceReturnProbeMark_##name() { \
141 HS_DTRACE_PROBE0(hotspot_jni, name##__return); \
142 } \
143 } \
144 )
145
146 #else /* USDT2 */
147
148 #define DT_RETURN_MARK_DECL(name, type, probe) \
149 DTRACE_ONLY( \
150 class DTraceReturnProbeMark_##name { \
151 public: \
152 const type& _ret_ref; \
153 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \
154 ~DTraceReturnProbeMark_##name() { \
155 probe; \
156 } \
157 } \
158 )
159 // Void functions are simpler since there's no return value
160 #define DT_VOID_RETURN_MARK_DECL(name, probe) \
161 DTRACE_ONLY( \
162 class DTraceReturnProbeMark_##name { \
163 public: \
164 ~DTraceReturnProbeMark_##name() { \
165 probe; \
166 } \
167 } \
168 )
169 #endif /* USDT2 */
170
171 // Place these macros in the function to mark the return. Non-void
172 // functions need the type and address of the return value.
173 #define DT_RETURN_MARK(name, type, ref) \
174 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) )
175 #define DT_VOID_RETURN_MARK(name) \
176 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )
177
178
179 // Use these to select distinct code for floating-point vs. non-floating point
180 // situations. Used from within common macros where we need slightly
181 // different behavior for Float/Double
182 #define FP_SELECT_Boolean(intcode, fpcode) intcode
183 #define FP_SELECT_Byte(intcode, fpcode) intcode
184 #define FP_SELECT_Char(intcode, fpcode) intcode
185 #define FP_SELECT_Short(intcode, fpcode) intcode
186 #define FP_SELECT_Object(intcode, fpcode) intcode
187 #define FP_SELECT_Int(intcode, fpcode) intcode
188 #define FP_SELECT_Long(intcode, fpcode) intcode
189 #define FP_SELECT_Float(intcode, fpcode) fpcode
190 #define FP_SELECT_Double(intcode, fpcode) fpcode
191 #define FP_SELECT(TypeName, intcode, fpcode) \
192 FP_SELECT_##TypeName(intcode, fpcode)
193
194 #define COMMA ,
195
196 // Choose DT_RETURN_MARK macros based on the type: float/double -> void
197 // (dtrace doesn't do FP yet)
198 #ifndef USDT2
199 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \
200 FP_SELECT(TypeName, \
201 DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )
202 #else /* USDT2 */
203 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe) \
204 FP_SELECT(TypeName, \
205 DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) )
206 #endif /* USDT2 */
207 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \
208 FP_SELECT(TypeName, \
209 DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) )
210
211
212 // out-of-line helpers for class jfieldIDWorkaround:
213
214 bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) {
215 if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) {
216 uintptr_t as_uint = (uintptr_t) id;
217 intptr_t offset = raw_instance_offset(id);
218 if (is_checked_jfieldID(id)) {
219 if (!klass_hash_ok(k, id)) {
220 return false;
221 }
222 }
223 return InstanceKlass::cast(k)->contains_field_offset(offset);
224 } else {
225 JNIid* result = (JNIid*) id;
226 #ifdef ASSERT
227 return result != NULL && result->is_static_field_id();
228 #else
229 return result != NULL;
230 #endif
231 }
232 }
233
234
235 intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) {
236 if (offset <= small_offset_mask) {
237 Klass* field_klass = k;
238 Klass* super_klass = field_klass->super();
239 // With compressed oops the most super class with nonstatic fields would
240 // be the owner of fields embedded in the header.
241 while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() &&
242 InstanceKlass::cast(super_klass)->contains_field_offset(offset)) {
243 field_klass = super_klass; // super contains the field also
244 super_klass = field_klass->super();
245 }
246 debug_only(No_Safepoint_Verifier nosafepoint;)
247 uintptr_t klass_hash = field_klass->identity_hash();
248 return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place;
249 } else {
250 #if 0
251 #ifndef PRODUCT
252 {
253 ResourceMark rm;
254 warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name());
255 }
256 #endif
257 #endif
258 return 0;
259 }
260 }
261
262 bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) {
263 uintptr_t as_uint = (uintptr_t) id;
264 intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask;
265 do {
266 debug_only(No_Safepoint_Verifier nosafepoint;)
267 // Could use a non-blocking query for identity_hash here...
268 if ((k->identity_hash() & klass_mask) == klass_hash)
269 return true;
270 k = k->super();
271 } while (k != NULL);
272 return false;
273 }
274
275 void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) {
276 guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" );
277 uintptr_t as_uint = (uintptr_t) id;
278 intptr_t offset = raw_instance_offset(id);
279 if (VerifyJNIFields) {
280 if (is_checked_jfieldID(id)) {
281 guarantee(klass_hash_ok(k, id),
282 "Bug in native code: jfieldID class must match object");
283 } else {
284 #if 0
285 #ifndef PRODUCT
286 if (Verbose) {
287 ResourceMark rm;
288 warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name());
289 }
290 #endif
291 #endif
292 }
293 }
294 guarantee(InstanceKlass::cast(k)->contains_field_offset(offset),
295 "Bug in native code: jfieldID offset must address interior of object");
296 }
297
298 // Wrapper to trace JNI functions
299
300 #ifdef ASSERT
301 Histogram* JNIHistogram;
302 static volatile jint JNIHistogram_lock = 0;
303
304 class JNITraceWrapper : public StackObj {
305 public:
306 JNITraceWrapper(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {
307 if (TraceJNICalls) {
308 va_list ap;
309 va_start(ap, format);
310 tty->print("JNI ");
311 tty->vprint_cr(format, ap);
312 va_end(ap);
313 }
314 }
315 };
316
317 class JNIHistogramElement : public HistogramElement {
318 public:
319 JNIHistogramElement(const char* name);
320 };
321
322 JNIHistogramElement::JNIHistogramElement(const char* elementName) {
323 _name = elementName;
324 uintx count = 0;
325
326 while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) {
327 while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) {
328 count +=1;
329 if ( (WarnOnStalledSpinLock > 0)
330 && (count % WarnOnStalledSpinLock == 0)) {
331 warning("JNIHistogram_lock seems to be stalled");
332 }
333 }
334 }
335
336
337 if(JNIHistogram == NULL)
338 JNIHistogram = new Histogram("JNI Call Counts",100);
339
340 JNIHistogram->add_element(this);
341 Atomic::dec(&JNIHistogram_lock);
342 }
343
344 #define JNICountWrapper(arg) \
345 static JNIHistogramElement* e = new JNIHistogramElement(arg); \
346 /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \
347 if (e != NULL) e->increment_count()
348 #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg)
349 #else
350 #define JNIWrapper(arg)
351 #endif
352
353
354 // Implementation of JNI entries
355
356 #ifndef USDT2
357 DT_RETURN_MARK_DECL(DefineClass, jclass);
358 #else /* USDT2 */
359 DT_RETURN_MARK_DECL(DefineClass, jclass
360 , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));
361 #endif /* USDT2 */
362
363 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef,
364 const jbyte *buf, jsize bufLen))
365 JNIWrapper("DefineClass");
366
367 #ifndef USDT2
368 DTRACE_PROBE5(hotspot_jni, DefineClass__entry,
369 env, name, loaderRef, buf, bufLen);
370 #else /* USDT2 */
371 HOTSPOT_JNI_DEFINECLASS_ENTRY(
372 env, (char*) name, loaderRef, (char*) buf, bufLen);
373 #endif /* USDT2 */
374 jclass cls = NULL;
375 DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls);
376
377 TempNewSymbol class_name = NULL;
378 // Since exceptions can be thrown, class initialization can take place
379 // if name is NULL no check for class name in .class stream has to be made.
380 if (name != NULL) {
381 const int str_len = (int)strlen(name);
382 if (str_len > Symbol::max_length()) {
383 // It's impossible to create this class; the name cannot fit
384 // into the constant pool.
385 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
386 }
387 class_name = SymbolTable::new_symbol(name, CHECK_NULL);
388 }
389 ResourceMark rm(THREAD);
390 ClassFileStream st((u1*) buf, bufLen, NULL);
391 Handle class_loader (THREAD, JNIHandles::resolve(loaderRef));
392
393 if (UsePerfData && !class_loader.is_null()) {
394 // check whether the current caller thread holds the lock or not.
395 // If not, increment the corresponding counter
396 if (ObjectSynchronizer::
397 query_lock_ownership((JavaThread*)THREAD, class_loader) !=
398 ObjectSynchronizer::owner_self) {
399 ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc();
400 }
401 }
402 Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader,
403 Handle(), &st, true,
404 CHECK_NULL);
405
406 if (TraceClassResolution && k != NULL) {
407 trace_class_resolution(k);
408 }
409
410 cls = (jclass)JNIHandles::make_local(
411 env, k->java_mirror());
412 return cls;
413 JNI_END
414
415
416
417 static bool first_time_FindClass = true;
418
419 #ifndef USDT2
420 DT_RETURN_MARK_DECL(FindClass, jclass);
421 #else /* USDT2 */
422 DT_RETURN_MARK_DECL(FindClass, jclass
423 , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));
424 #endif /* USDT2 */
425
426 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name))
427 JNIWrapper("FindClass");
428 #ifndef USDT2
429 DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name);
430 #else /* USDT2 */
431 HOTSPOT_JNI_FINDCLASS_ENTRY(
432 env, (char *)name);
433 #endif /* USDT2 */
434
435 jclass result = NULL;
436 DT_RETURN_MARK(FindClass, jclass, (const jclass&)result);
437
438 // Remember if we are the first invocation of jni_FindClass
439 bool first_time = first_time_FindClass;
440 first_time_FindClass = false;
441
442 // Sanity check the name: it cannot be null or larger than the maximum size
443 // name we can fit in the constant pool.
444 if (name == NULL || (int)strlen(name) > Symbol::max_length()) {
445 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
446 }
447
448 //%note jni_3
449 Handle loader;
450 Handle protection_domain;
451 // Find calling class
452 instanceKlassHandle k (THREAD, thread->security_get_caller_class(0));
453 if (k.not_null()) {
454 loader = Handle(THREAD, k->class_loader());
455 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed
456 // in the correct class context.
457 if (loader.is_null() &&
458 k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) {
459 JavaValue result(T_OBJECT);
460 JavaCalls::call_static(&result, k,
461 vmSymbols::getFromClass_name(),
462 vmSymbols::void_class_signature(),
463 thread);
464 if (HAS_PENDING_EXCEPTION) {
465 Handle ex(thread, thread->pending_exception());
466 CLEAR_PENDING_EXCEPTION;
467 THROW_HANDLE_0(ex);
468 }
469 oop mirror = (oop) result.get_jobject();
470 loader = Handle(THREAD,
471 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader());
472 protection_domain = Handle(THREAD,
473 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain());
474 }
475 } else {
476 // We call ClassLoader.getSystemClassLoader to obtain the system class loader.
477 loader = Handle(THREAD, SystemDictionary::java_system_loader());
478 }
479
480 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
481 result = find_class_from_class_loader(env, sym, true, loader,
482 protection_domain, true, thread);
483
484 if (TraceClassResolution && result != NULL) {
485 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
486 }
487
488 // If we were the first invocation of jni_FindClass, we enable compilation again
489 // rather than just allowing invocation counter to overflow and decay.
490 // Controlled by flag DelayCompilationDuringStartup.
491 if (first_time && !CompileTheWorld)
492 CompilationPolicy::completed_vm_startup();
493
494 return result;
495 JNI_END
496
497 #ifndef USDT2
498 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);
499 #else /* USDT2 */
500 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID
501 , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));
502 #endif /* USDT2 */
503
504 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method))
505 JNIWrapper("FromReflectedMethod");
506 #ifndef USDT2
507 DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method);
508 #else /* USDT2 */
509 HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(
510 env, method);
511 #endif /* USDT2 */
512 jmethodID ret = NULL;
513 DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret);
514
515 // method is a handle to a java.lang.reflect.Method object
516 oop reflected = JNIHandles::resolve_non_null(method);
517 oop mirror = NULL;
518 int slot = 0;
519
520 if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) {
521 mirror = java_lang_reflect_Constructor::clazz(reflected);
522 slot = java_lang_reflect_Constructor::slot(reflected);
523 } else {
524 assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
525 mirror = java_lang_reflect_Method::clazz(reflected);
526 slot = java_lang_reflect_Method::slot(reflected);
527 }
528 Klass* k = java_lang_Class::as_Klass(mirror);
529
530 KlassHandle k1(THREAD, k);
531 // Make sure class is initialized before handing id's out to methods
532 k1()->initialize(CHECK_NULL);
533 Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot);
534 ret = m==NULL? NULL : m->jmethod_id(); // return NULL if reflected method deleted
535 return ret;
536 JNI_END
537
538 #ifndef USDT2
539 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);
540 #else /* USDT2 */
541 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID
542 , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));
543 #endif /* USDT2 */
544
545 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field))
546 JNIWrapper("FromReflectedField");
547 #ifndef USDT2
548 DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field);
549 #else /* USDT2 */
550 HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(
551 env, field);
552 #endif /* USDT2 */
553 jfieldID ret = NULL;
554 DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret);
555
556 // field is a handle to a java.lang.reflect.Field object
557 oop reflected = JNIHandles::resolve_non_null(field);
558 oop mirror = java_lang_reflect_Field::clazz(reflected);
559 Klass* k = java_lang_Class::as_Klass(mirror);
560 int slot = java_lang_reflect_Field::slot(reflected);
561 int modifiers = java_lang_reflect_Field::modifiers(reflected);
562
563 KlassHandle k1(THREAD, k);
564 // Make sure class is initialized before handing id's out to fields
565 k1()->initialize(CHECK_NULL);
566
567 // First check if this is a static field
568 if (modifiers & JVM_ACC_STATIC) {
569 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
570 JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset);
571 assert(id != NULL, "corrupt Field object");
572 debug_only(id->set_is_static_field_id();)
573 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
574 ret = jfieldIDWorkaround::to_static_jfieldID(id);
575 return ret;
576 }
577
578 // The slot is the index of the field description in the field-array
579 // The jfieldID is the offset of the field within the object
580 // It may also have hash bits for k, if VerifyJNIFields is turned on.
581 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
582 assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object");
583 ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset);
584 return ret;
585 JNI_END
586
587 #ifndef USDT2
588 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);
589 #else /* USDT2 */
590 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject
591 , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));
592 #endif /* USDT2 */
593
594 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic))
595 JNIWrapper("ToReflectedMethod");
596 #ifndef USDT2
597 DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic);
598 #else /* USDT2 */
599 HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(
600 env, cls, (uintptr_t) method_id, isStatic);
601 #endif /* USDT2 */
602 jobject ret = NULL;
603 DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret);
604
605 methodHandle m (THREAD, Method::resolve_jmethod_id(method_id));
606 assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match");
607 oop reflection_method;
608 if (m->is_initializer()) {
609 reflection_method = Reflection::new_constructor(m, CHECK_NULL);
610 } else {
611 reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL);
612 }
613 ret = JNIHandles::make_local(env, reflection_method);
614 return ret;
615 JNI_END
616
617 #ifndef USDT2
618 DT_RETURN_MARK_DECL(GetSuperclass, jclass);
619 #else /* USDT2 */
620 DT_RETURN_MARK_DECL(GetSuperclass, jclass
621 , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));
622 #endif /* USDT2 */
623
624 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub))
625 JNIWrapper("GetSuperclass");
626 #ifndef USDT2
627 DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub);
628 #else /* USDT2 */
629 HOTSPOT_JNI_GETSUPERCLASS_ENTRY(
630 env, sub);
631 #endif /* USDT2 */
632 jclass obj = NULL;
633 DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj);
634
635 oop mirror = JNIHandles::resolve_non_null(sub);
636 // primitive classes return NULL
637 if (java_lang_Class::is_primitive(mirror)) return NULL;
638
639 // Rules of Class.getSuperClass as implemented by KLass::java_super:
640 // arrays return Object
641 // interfaces return NULL
642 // proper classes return Klass::super()
643 Klass* k = java_lang_Class::as_Klass(mirror);
644 if (k->is_interface()) return NULL;
645
646 // return mirror for superclass
647 Klass* super = k->java_super();
648 // super2 is the value computed by the compiler's getSuperClass intrinsic:
649 debug_only(Klass* super2 = ( k->oop_is_array()
650 ? SystemDictionary::Object_klass()
651 : k->super() ) );
652 assert(super == super2,
653 "java_super computation depends on interface, array, other super");
654 obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror());
655 return obj;
656 JNI_END
657
658 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super))
659 JNIWrapper("IsSubclassOf");
660 #ifndef USDT2
661 DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super);
662 #else /* USDT2 */
663 HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(
664 env, sub, super);
665 #endif /* USDT2 */
666 oop sub_mirror = JNIHandles::resolve_non_null(sub);
667 oop super_mirror = JNIHandles::resolve_non_null(super);
668 if (java_lang_Class::is_primitive(sub_mirror) ||
669 java_lang_Class::is_primitive(super_mirror)) {
670 jboolean ret = (sub_mirror == super_mirror);
671 #ifndef USDT2
672 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
673 #else /* USDT2 */
674 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
675 ret);
676 #endif /* USDT2 */
677 return ret;
678 }
679 Klass* sub_klass = java_lang_Class::as_Klass(sub_mirror);
680 Klass* super_klass = java_lang_Class::as_Klass(super_mirror);
681 assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom");
682 jboolean ret = sub_klass->is_subtype_of(super_klass) ?
683 JNI_TRUE : JNI_FALSE;
684 #ifndef USDT2
685 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
686 #else /* USDT2 */
687 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
688 ret);
689 #endif /* USDT2 */
690 return ret;
691 JNI_END
692
693 #ifndef USDT2
694 DT_RETURN_MARK_DECL(Throw, jint);
695 #else /* USDT2 */
696 DT_RETURN_MARK_DECL(Throw, jint
697 , HOTSPOT_JNI_THROW_RETURN(_ret_ref));
698 #endif /* USDT2 */
699
700 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj))
701 JNIWrapper("Throw");
702 #ifndef USDT2
703 DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj);
704 #else /* USDT2 */
705 HOTSPOT_JNI_THROW_ENTRY(
706 env, obj);
707 #endif /* USDT2 */
708 jint ret = JNI_OK;
709 DT_RETURN_MARK(Throw, jint, (const jint&)ret);
710
711 THROW_OOP_(JNIHandles::resolve(obj), JNI_OK);
712 ShouldNotReachHere();
713 return 0; // Mute compiler.
714 JNI_END
715
716 #ifndef USDT2
717 DT_RETURN_MARK_DECL(ThrowNew, jint);
718 #else /* USDT2 */
719 DT_RETURN_MARK_DECL(ThrowNew, jint
720 , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));
721 #endif /* USDT2 */
722
723 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message))
724 JNIWrapper("ThrowNew");
725 #ifndef USDT2
726 DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message);
727 #else /* USDT2 */
728 HOTSPOT_JNI_THROWNEW_ENTRY(
729 env, clazz, (char *) message);
730 #endif /* USDT2 */
731 jint ret = JNI_OK;
732 DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret);
733
734 InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
735 Symbol* name = k->name();
736 Handle class_loader (THREAD, k->class_loader());
737 Handle protection_domain (THREAD, k->protection_domain());
738 THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK);
739 ShouldNotReachHere();
740 return 0; // Mute compiler.
741 JNI_END
742
743
744 // JNI functions only transform a pending async exception to a synchronous
745 // exception in ExceptionOccurred and ExceptionCheck calls, since
746 // delivering an async exception in other places won't change the native
747 // code's control flow and would be harmful when native code further calls
748 // JNI functions with a pending exception. Async exception is also checked
749 // during the call, so ExceptionOccurred/ExceptionCheck won't return
750 // false but deliver the async exception at the very end during
751 // state transition.
752
753 static void jni_check_async_exceptions(JavaThread *thread) {
754 assert(thread == Thread::current(), "must be itself");
755 thread->check_and_handle_async_exceptions();
756 }
757
758 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env))
759 JNIWrapper("ExceptionOccurred");
760 #ifndef USDT2
761 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);
762 #else /* USDT2 */
763 HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(
764 env);
765 #endif /* USDT2 */
766 jni_check_async_exceptions(thread);
767 oop exception = thread->pending_exception();
768 jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception);
769 #ifndef USDT2
770 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);
771 #else /* USDT2 */
772 HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(
773 ret);
774 #endif /* USDT2 */
775 return ret;
776 JNI_END
777
778
779 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env))
780 JNIWrapper("ExceptionDescribe");
781 #ifndef USDT2
782 DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);
783 #else /* USDT2 */
784 HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(
785 env);
786 #endif /* USDT2 */
787 if (thread->has_pending_exception()) {
788 Handle ex(thread, thread->pending_exception());
789 thread->clear_pending_exception();
790 if (ex->is_a(SystemDictionary::ThreadDeath_klass())) {
791 // Don't print anything if we are being killed.
792 } else {
793 jio_fprintf(defaultStream::error_stream(), "Exception ");
794 if (thread != NULL && thread->threadObj() != NULL) {
795 ResourceMark rm(THREAD);
796 jio_fprintf(defaultStream::error_stream(),
797 "in thread \"%s\" ", thread->get_thread_name());
798 }
799 if (ex->is_a(SystemDictionary::Throwable_klass())) {
800 JavaValue result(T_VOID);
801 JavaCalls::call_virtual(&result,
802 ex,
803 KlassHandle(THREAD,
804 SystemDictionary::Throwable_klass()),
805 vmSymbols::printStackTrace_name(),
806 vmSymbols::void_method_signature(),
807 THREAD);
808 // If an exception is thrown in the call it gets thrown away. Not much
809 // we can do with it. The native code that calls this, does not check
810 // for the exception - hence, it might still be in the thread when DestroyVM gets
811 // called, potentially causing a few asserts to trigger - since no pending exception
812 // is expected.
813 CLEAR_PENDING_EXCEPTION;
814 } else {
815 ResourceMark rm(THREAD);
816 jio_fprintf(defaultStream::error_stream(),
817 ". Uncaught exception of type %s.",
818 ex->klass()->external_name());
819 }
820 }
821 }
822 #ifndef USDT2
823 DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);
824 #else /* USDT2 */
825 HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(
826 );
827 #endif /* USDT2 */
828 JNI_END
829
830
831 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env))
832 JNIWrapper("ExceptionClear");
833 #ifndef USDT2
834 DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);
835 #else /* USDT2 */
836 HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(
837 env);
838 #endif /* USDT2 */
839
840 // The jni code might be using this API to clear java thrown exception.
841 // So just mark jvmti thread exception state as exception caught.
842 JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state();
843 if (state != NULL && state->is_exception_detected()) {
844 state->set_exception_caught();
845 }
846 thread->clear_pending_exception();
847 #ifndef USDT2
848 DTRACE_PROBE(hotspot_jni, ExceptionClear__return);
849 #else /* USDT2 */
850 HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(
851 );
852 #endif /* USDT2 */
853 JNI_END
854
855
856 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg))
857 JNIWrapper("FatalError");
858 #ifndef USDT2
859 DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg);
860 #else /* USDT2 */
861 HOTSPOT_JNI_FATALERROR_ENTRY(
862 env, (char *) msg);
863 #endif /* USDT2 */
864 tty->print_cr("FATAL ERROR in native method: %s", msg);
865 thread->print_stack();
866 os::abort(); // Dump core and abort
867 JNI_END
868
869
870 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity))
871 JNIWrapper("PushLocalFrame");
872 #ifndef USDT2
873 DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity);
874 #else /* USDT2 */
875 HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(
876 env, capacity);
877 #endif /* USDT2 */
878 //%note jni_11
879 if (capacity < 0 ||
880 ((MaxJNILocalCapacity > 0) && (capacity > MaxJNILocalCapacity))) {
881 #ifndef USDT2
882 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);
883 #else /* USDT2 */
884 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
885 (uint32_t)JNI_ERR);
886 #endif /* USDT2 */
887 return JNI_ERR;
888 }
889 JNIHandleBlock* old_handles = thread->active_handles();
890 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
891 assert(new_handles != NULL, "should not be NULL");
892 new_handles->set_pop_frame_link(old_handles);
893 thread->set_active_handles(new_handles);
894 jint ret = JNI_OK;
895 #ifndef USDT2
896 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);
897 #else /* USDT2 */
898 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
899 ret);
900 #endif /* USDT2 */
901 return ret;
902 JNI_END
903
904
905 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result))
906 JNIWrapper("PopLocalFrame");
907 #ifndef USDT2
908 DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result);
909 #else /* USDT2 */
910 HOTSPOT_JNI_POPLOCALFRAME_ENTRY(
911 env, result);
912 #endif /* USDT2 */
913 //%note jni_11
914 Handle result_handle(thread, JNIHandles::resolve(result));
915 JNIHandleBlock* old_handles = thread->active_handles();
916 JNIHandleBlock* new_handles = old_handles->pop_frame_link();
917 if (new_handles != NULL) {
918 // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL.
919 // This way code will still work if PopLocalFrame is called without a corresponding
920 // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise
921 // the release_block call will release the blocks.
922 thread->set_active_handles(new_handles);
923 old_handles->set_pop_frame_link(NULL); // clear link we won't release new_handles below
924 JNIHandleBlock::release_block(old_handles, thread); // may block
925 result = JNIHandles::make_local(thread, result_handle());
926 }
927 #ifndef USDT2
928 DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);
929 #else /* USDT2 */
930 HOTSPOT_JNI_POPLOCALFRAME_RETURN(
931 result);
932 #endif /* USDT2 */
933 return result;
934 JNI_END
935
936
937 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref))
938 JNIWrapper("NewGlobalRef");
939 #ifndef USDT2
940 DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref);
941 #else /* USDT2 */
942 HOTSPOT_JNI_NEWGLOBALREF_ENTRY(
943 env, ref);
944 #endif /* USDT2 */
945 Handle ref_handle(thread, JNIHandles::resolve(ref));
946 jobject ret = JNIHandles::make_global(ref_handle);
947 #ifndef USDT2
948 DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);
949 #else /* USDT2 */
950 HOTSPOT_JNI_NEWGLOBALREF_RETURN(
951 ret);
952 #endif /* USDT2 */
953 return ret;
954 JNI_END
955
956 // Must be JNI_ENTRY (with HandleMark)
957 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref))
958 JNIWrapper("DeleteGlobalRef");
959 #ifndef USDT2
960 DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref);
961 #else /* USDT2 */
962 HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(
963 env, ref);
964 #endif /* USDT2 */
965 JNIHandles::destroy_global(ref);
966 #ifndef USDT2
967 DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);
968 #else /* USDT2 */
969 HOTSPOT_JNI_DELETEGLOBALREF_RETURN(
970 );
971 #endif /* USDT2 */
972 JNI_END
973
974 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj))
975 JNIWrapper("DeleteLocalRef");
976 #ifndef USDT2
977 DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj);
978 #else /* USDT2 */
979 HOTSPOT_JNI_DELETELOCALREF_ENTRY(
980 env, obj);
981 #endif /* USDT2 */
982 JNIHandles::destroy_local(obj);
983 #ifndef USDT2
984 DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);
985 #else /* USDT2 */
986 HOTSPOT_JNI_DELETELOCALREF_RETURN(
987 );
988 #endif /* USDT2 */
989 JNI_END
990
991 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2))
992 JNIWrapper("IsSameObject");
993 #ifndef USDT2
994 DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2);
995 #else /* USDT2 */
996 HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(
997 env, r1, r2);
998 #endif /* USDT2 */
999 oop a = JNIHandles::resolve(r1);
1000 oop b = JNIHandles::resolve(r2);
1001 jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;
1002 #ifndef USDT2
1003 DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);
1004 #else /* USDT2 */
1005 HOTSPOT_JNI_ISSAMEOBJECT_RETURN(
1006 ret);
1007 #endif /* USDT2 */
1008 return ret;
1009 JNI_END
1010
1011
1012 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))
1013 JNIWrapper("NewLocalRef");
1014 #ifndef USDT2
1015 DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);
1016 #else /* USDT2 */
1017 HOTSPOT_JNI_NEWLOCALREF_ENTRY(
1018 env, ref);
1019 #endif /* USDT2 */
1020 jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));
1021 #ifndef USDT2
1022 DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);
1023 #else /* USDT2 */
1024 HOTSPOT_JNI_NEWLOCALREF_RETURN(
1025 ret);
1026 #endif /* USDT2 */
1027 return ret;
1028 JNI_END
1029
1030 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))
1031 JNIWrapper("EnsureLocalCapacity");
1032 #ifndef USDT2
1033 DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);
1034 #else /* USDT2 */
1035 HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(
1036 env, capacity);
1037 #endif /* USDT2 */
1038 jint ret;
1039 if (capacity >= 0 &&
1040 ((MaxJNILocalCapacity <= 0) || (capacity <= MaxJNILocalCapacity))) {
1041 ret = JNI_OK;
1042 } else {
1043 ret = JNI_ERR;
1044 }
1045 #ifndef USDT2
1046 DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);
1047 #else /* USDT2 */
1048 HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(
1049 ret);
1050 #endif /* USDT2 */
1051 return ret;
1052 JNI_END
1053
1054 // Return the Handle Type
1055 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))
1056 JNIWrapper("GetObjectRefType");
1057 #ifndef USDT2
1058 DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);
1059 #else /* USDT2 */
1060 HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(
1061 env, obj);
1062 #endif /* USDT2 */
1063 jobjectRefType ret;
1064 if (JNIHandles::is_local_handle(thread, obj) ||
1065 JNIHandles::is_frame_handle(thread, obj))
1066 ret = JNILocalRefType;
1067 else if (JNIHandles::is_global_handle(obj))
1068 ret = JNIGlobalRefType;
1069 else if (JNIHandles::is_weak_global_handle(obj))
1070 ret = JNIWeakGlobalRefType;
1071 else
1072 ret = JNIInvalidRefType;
1073 #ifndef USDT2
1074 DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);
1075 #else /* USDT2 */
1076 HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(
1077 (void *) ret);
1078 #endif /* USDT2 */
1079 return ret;
1080 JNI_END
1081
1082
1083 class JNI_ArgumentPusher : public SignatureIterator {
1084 protected:
1085 JavaCallArguments* _arguments;
1086
1087 virtual void get_bool () = 0;
1088 virtual void get_char () = 0;
1089 virtual void get_short () = 0;
1090 virtual void get_byte () = 0;
1091 virtual void get_int () = 0;
1092 virtual void get_long () = 0;
1093 virtual void get_float () = 0;
1094 virtual void get_double () = 0;
1095 virtual void get_object () = 0;
1096
1097 JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {
1098 this->_return_type = T_ILLEGAL;
1099 _arguments = NULL;
1100 }
1101
1102 public:
1103 virtual void iterate( uint64_t fingerprint ) = 0;
1104
1105 void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }
1106
1107 inline void do_bool() { if (!is_return_type()) get_bool(); }
1108 inline void do_char() { if (!is_return_type()) get_char(); }
1109 inline void do_short() { if (!is_return_type()) get_short(); }
1110 inline void do_byte() { if (!is_return_type()) get_byte(); }
1111 inline void do_int() { if (!is_return_type()) get_int(); }
1112 inline void do_long() { if (!is_return_type()) get_long(); }
1113 inline void do_float() { if (!is_return_type()) get_float(); }
1114 inline void do_double() { if (!is_return_type()) get_double(); }
1115 inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }
1116 inline void do_array(int begin, int end) { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array
1117 inline void do_void() { }
1118
1119 JavaCallArguments* arguments() { return _arguments; }
1120 void push_receiver(Handle h) { _arguments->push_oop(h); }
1121 };
1122
1123
1124 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {
1125 protected:
1126 va_list _ap;
1127
1128 inline void get_bool() {
1129 // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and
1130 // 0 to JNI_FALSE. Boolean return values from native are normalized the same in
1131 // TemplateInterpreterGenerator::generate_result_handler_for and
1132 // SharedRuntime::generate_native_wrapper.
1133 jboolean b = va_arg(_ap, jint);
1134 _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));
1135 }
1136 inline void get_char() { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg
1137 inline void get_short() { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg
1138 inline void get_byte() { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg
1139 inline void get_int() { _arguments->push_int(va_arg(_ap, jint)); }
1140
1141 // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests
1142
1143 inline void get_long() { _arguments->push_long(va_arg(_ap, jlong)); }
1144 inline void get_float() { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg
1145 inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }
1146 inline void get_object() { _arguments->push_jobject(va_arg(_ap, jobject)); }
1147
1148 inline void set_ap(va_list rap) {
1149 #ifdef va_copy
1150 va_copy(_ap, rap);
1151 #elif defined (__va_copy)
1152 __va_copy(_ap, rap);
1153 #else
1154 _ap = rap;
1155 #endif
1156 }
1157
1158 public:
1159 JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)
1160 : JNI_ArgumentPusher(signature) {
1161 set_ap(rap);
1162 }
1163 JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)
1164 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1165 set_ap(rap);
1166 }
1167
1168 // Optimized path if we have the bitvector form of signature
1169 void iterate( uint64_t fingerprint ) {
1170 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments
1171 else {
1172 _return_type = (BasicType)((fingerprint >> static_feature_size) &
1173 result_feature_mask);
1174
1175 assert(fingerprint, "Fingerprint should not be 0");
1176 fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1177 while ( 1 ) {
1178 switch ( fingerprint & parameter_feature_mask ) {
1179 case bool_parm:
1180 get_bool();
1181 break;
1182 case char_parm:
1183 get_char();
1184 break;
1185 case short_parm:
1186 get_short();
1187 break;
1188 case byte_parm:
1189 get_byte();
1190 break;
1191 case int_parm:
1192 get_int();
1193 break;
1194 case obj_parm:
1195 get_object();
1196 break;
1197 case long_parm:
1198 get_long();
1199 break;
1200 case float_parm:
1201 get_float();
1202 break;
1203 case double_parm:
1204 get_double();
1205 break;
1206 case done_parm:
1207 return;
1208 break;
1209 default:
1210 ShouldNotReachHere();
1211 break;
1212 }
1213 fingerprint >>= parameter_feature_size;
1214 }
1215 }
1216 }
1217 };
1218
1219
1220 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {
1221 protected:
1222 const jvalue *_ap;
1223
1224 inline void get_bool() {
1225 // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and
1226 // 0 to JNI_FALSE. Boolean return values from native are normalized the same in
1227 // TemplateInterpreterGenerator::generate_result_handler_for and
1228 // SharedRuntime::generate_native_wrapper.
1229 jboolean b = (_ap++)->z;
1230 _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));
1231 }
1232 inline void get_char() { _arguments->push_int((jint)(_ap++)->c); }
1233 inline void get_short() { _arguments->push_int((jint)(_ap++)->s); }
1234 inline void get_byte() { _arguments->push_int((jint)(_ap++)->b); }
1235 inline void get_int() { _arguments->push_int((jint)(_ap++)->i); }
1236
1237 inline void get_long() { _arguments->push_long((_ap++)->j); }
1238 inline void get_float() { _arguments->push_float((_ap++)->f); }
1239 inline void get_double() { _arguments->push_double((_ap++)->d);}
1240 inline void get_object() { _arguments->push_jobject((_ap++)->l); }
1241
1242 inline void set_ap(const jvalue *rap) { _ap = rap; }
1243
1244 public:
1245 JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)
1246 : JNI_ArgumentPusher(signature) {
1247 set_ap(rap);
1248 }
1249 JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)
1250 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1251 set_ap(rap);
1252 }
1253
1254 // Optimized path if we have the bitvector form of signature
1255 void iterate( uint64_t fingerprint ) {
1256 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments
1257 else {
1258 _return_type = (BasicType)((fingerprint >> static_feature_size) &
1259 result_feature_mask);
1260 assert(fingerprint, "Fingerprint should not be 0");
1261 fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1262 while ( 1 ) {
1263 switch ( fingerprint & parameter_feature_mask ) {
1264 case bool_parm:
1265 get_bool();
1266 break;
1267 case char_parm:
1268 get_char();
1269 break;
1270 case short_parm:
1271 get_short();
1272 break;
1273 case byte_parm:
1274 get_byte();
1275 break;
1276 case int_parm:
1277 get_int();
1278 break;
1279 case obj_parm:
1280 get_object();
1281 break;
1282 case long_parm:
1283 get_long();
1284 break;
1285 case float_parm:
1286 get_float();
1287 break;
1288 case double_parm:
1289 get_double();
1290 break;
1291 case done_parm:
1292 return;
1293 break;
1294 default:
1295 ShouldNotReachHere();
1296 break;
1297 }
1298 fingerprint >>= parameter_feature_size;
1299 }
1300 }
1301 }
1302 };
1303
1304
1305 enum JNICallType {
1306 JNI_STATIC,
1307 JNI_VIRTUAL,
1308 JNI_NONVIRTUAL
1309 };
1310
1311
1312
1313 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1314 methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));
1315
1316 // Create object to hold arguments for the JavaCall, and associate it with
1317 // the jni parser
1318 ResourceMark rm(THREAD);
1319 int number_of_parameters = method->size_of_parameters();
1320 JavaCallArguments java_args(number_of_parameters);
1321 args->set_java_argument_object(&java_args);
1322
1323 assert(method->is_static(), "method should be static");
1324
1325 // Fill out JavaCallArguments object
1326 args->iterate( Fingerprinter(method).fingerprint() );
1327 // Initialize result type
1328 result->set_type(args->get_ret_type());
1329
1330 // Invoke the method. Result is returned as oop.
1331 JavaCalls::call(result, method, &java_args, CHECK);
1332
1333 // Convert result
1334 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1335 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1336 }
1337 }
1338
1339
1340 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1341 oop recv = JNIHandles::resolve(receiver);
1342 if (recv == NULL) {
1343 THROW(vmSymbols::java_lang_NullPointerException());
1344 }
1345 Handle h_recv(THREAD, recv);
1346
1347 int number_of_parameters;
1348 Method* selected_method;
1349 {
1350 Method* m = Method::resolve_jmethod_id(method_id);
1351 number_of_parameters = m->size_of_parameters();
1352 Klass* holder = m->method_holder();
1353 if (call_type != JNI_VIRTUAL) {
1354 selected_method = m;
1355 } else if (!m->has_itable_index()) {
1356 // non-interface call -- for that little speed boost, don't handlize
1357 debug_only(No_Safepoint_Verifier nosafepoint;)
1358 // jni_GetMethodID makes sure class is linked and initialized
1359 // so m should have a valid vtable index.
1360 assert(m->valid_vtable_index(), "no valid vtable index");
1361 int vtbl_index = m->vtable_index();
1362 if (vtbl_index != Method::nonvirtual_vtable_index) {
1363 Klass* k = h_recv->klass();
1364 // k might be an arrayKlassOop but all vtables start at
1365 // the same place. The cast is to avoid virtual call and assertion.
1366 InstanceKlass *ik = (InstanceKlass*)k;
1367 selected_method = ik->method_at_vtable(vtbl_index);
1368 } else {
1369 // final method
1370 selected_method = m;
1371 }
1372 } else {
1373 // interface call
1374 KlassHandle h_holder(THREAD, holder);
1375
1376 int itbl_index = m->itable_index();
1377 Klass* k = h_recv->klass();
1378 selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);
1379 }
1380 }
1381
1382 methodHandle method(THREAD, selected_method);
1383
1384 // Create object to hold arguments for the JavaCall, and associate it with
1385 // the jni parser
1386 ResourceMark rm(THREAD);
1387 JavaCallArguments java_args(number_of_parameters);
1388 args->set_java_argument_object(&java_args);
1389
1390 // handle arguments
1391 assert(!method->is_static(), "method should not be static");
1392 args->push_receiver(h_recv); // Push jobject handle
1393
1394 // Fill out JavaCallArguments object
1395 args->iterate( Fingerprinter(method).fingerprint() );
1396 // Initialize result type
1397 result->set_type(args->get_ret_type());
1398
1399 // Invoke the method. Result is returned as oop.
1400 JavaCalls::call(result, method, &java_args, CHECK);
1401
1402 // Convert result
1403 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1404 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1405 }
1406 }
1407
1408
1409 static instanceOop alloc_object(jclass clazz, TRAPS) {
1410 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1411 k()->check_valid_for_instantiation(false, CHECK_NULL);
1412 InstanceKlass::cast(k())->initialize(CHECK_NULL);
1413 instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);
1414 return ih;
1415 }
1416
1417 #ifndef USDT2
1418 DT_RETURN_MARK_DECL(AllocObject, jobject);
1419 #else /* USDT2 */
1420 DT_RETURN_MARK_DECL(AllocObject, jobject
1421 , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));
1422 #endif /* USDT2 */
1423
1424 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))
1425 JNIWrapper("AllocObject");
1426
1427 #ifndef USDT2
1428 DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);
1429 #else /* USDT2 */
1430 HOTSPOT_JNI_ALLOCOBJECT_ENTRY(
1431 env, clazz);
1432 #endif /* USDT2 */
1433 jobject ret = NULL;
1434 DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);
1435
1436 instanceOop i = alloc_object(clazz, CHECK_NULL);
1437 ret = JNIHandles::make_local(env, i);
1438 return ret;
1439 JNI_END
1440
1441 #ifndef USDT2
1442 DT_RETURN_MARK_DECL(NewObjectA, jobject);
1443 #else /* USDT2 */
1444 DT_RETURN_MARK_DECL(NewObjectA, jobject
1445 , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));
1446 #endif /* USDT2 */
1447
1448 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))
1449 JNIWrapper("NewObjectA");
1450 #ifndef USDT2
1451 DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);
1452 #else /* USDT2 */
1453 HOTSPOT_JNI_NEWOBJECTA_ENTRY(
1454 env, clazz, (uintptr_t) methodID);
1455 #endif /* USDT2 */
1456 jobject obj = NULL;
1457 DT_RETURN_MARK(NewObjectA, jobject, (const jobject&)obj);
1458
1459 instanceOop i = alloc_object(clazz, CHECK_NULL);
1460 obj = JNIHandles::make_local(env, i);
1461 JavaValue jvalue(T_VOID);
1462 JNI_ArgumentPusherArray ap(methodID, args);
1463 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1464 return obj;
1465 JNI_END
1466
1467 #ifndef USDT2
1468 DT_RETURN_MARK_DECL(NewObjectV, jobject);
1469 #else /* USDT2 */
1470 DT_RETURN_MARK_DECL(NewObjectV, jobject
1471 , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));
1472 #endif /* USDT2 */
1473
1474 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))
1475 JNIWrapper("NewObjectV");
1476 #ifndef USDT2
1477 DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);
1478 #else /* USDT2 */
1479 HOTSPOT_JNI_NEWOBJECTV_ENTRY(
1480 env, clazz, (uintptr_t) methodID);
1481 #endif /* USDT2 */
1482 jobject obj = NULL;
1483 DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);
1484
1485 instanceOop i = alloc_object(clazz, CHECK_NULL);
1486 obj = JNIHandles::make_local(env, i);
1487 JavaValue jvalue(T_VOID);
1488 JNI_ArgumentPusherVaArg ap(methodID, args);
1489 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1490 return obj;
1491 JNI_END
1492
1493 #ifndef USDT2
1494 DT_RETURN_MARK_DECL(NewObject, jobject);
1495 #else /* USDT2 */
1496 DT_RETURN_MARK_DECL(NewObject, jobject
1497 , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));
1498 #endif /* USDT2 */
1499
1500 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))
1501 JNIWrapper("NewObject");
1502 #ifndef USDT2
1503 DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);
1504 #else /* USDT2 */
1505 HOTSPOT_JNI_NEWOBJECT_ENTRY(
1506 env, clazz, (uintptr_t) methodID);
1507 #endif /* USDT2 */
1508 jobject obj = NULL;
1509 DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);
1510
1511 instanceOop i = alloc_object(clazz, CHECK_NULL);
1512 obj = JNIHandles::make_local(env, i);
1513 va_list args;
1514 va_start(args, methodID);
1515 JavaValue jvalue(T_VOID);
1516 JNI_ArgumentPusherVaArg ap(methodID, args);
1517 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1518 va_end(args);
1519 return obj;
1520 JNI_END
1521
1522
1523 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))
1524 JNIWrapper("GetObjectClass");
1525 #ifndef USDT2
1526 DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);
1527 #else /* USDT2 */
1528 HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(
1529 env, obj);
1530 #endif /* USDT2 */
1531 Klass* k = JNIHandles::resolve_non_null(obj)->klass();
1532 jclass ret =
1533 (jclass) JNIHandles::make_local(env, k->java_mirror());
1534 #ifndef USDT2
1535 DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);
1536 #else /* USDT2 */
1537 HOTSPOT_JNI_GETOBJECTCLASS_RETURN(
1538 ret);
1539 #endif /* USDT2 */
1540 return ret;
1541 JNI_END
1542
1543 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))
1544 JNIWrapper("IsInstanceOf");
1545 #ifndef USDT2
1546 DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);
1547 #else /* USDT2 */
1548 HOTSPOT_JNI_ISINSTANCEOF_ENTRY(
1549 env, obj, clazz);
1550 #endif /* USDT2 */
1551 jboolean ret = JNI_TRUE;
1552 if (obj != NULL) {
1553 ret = JNI_FALSE;
1554 Klass* k = java_lang_Class::as_Klass(
1555 JNIHandles::resolve_non_null(clazz));
1556 if (k != NULL) {
1557 ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;
1558 }
1559 }
1560 #ifndef USDT2
1561 DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);
1562 #else /* USDT2 */
1563 HOTSPOT_JNI_ISINSTANCEOF_RETURN(
1564 ret);
1565 #endif /* USDT2 */
1566 return ret;
1567 JNI_END
1568
1569
1570 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,
1571 const char *sig, bool is_static, TRAPS) {
1572 // %%%% This code should probably just call into a method in the LinkResolver
1573 //
1574 // The class should have been loaded (we have an instance of the class
1575 // passed in) so the method and signature should already be in the symbol
1576 // table. If they're not there, the method doesn't exist.
1577 const char *name_to_probe = (name_str == NULL)
1578 ? vmSymbols::object_initializer_name()->as_C_string()
1579 : name_str;
1580 TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));
1581 TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));
1582
1583 if (name == NULL || signature == NULL) {
1584 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1585 }
1586
1587 // Throw a NoSuchMethodError exception if we have an instance of a
1588 // primitive java.lang.Class
1589 if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {
1590 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1591 }
1592
1593 KlassHandle klass(THREAD,
1594 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1595
1596 // Make sure class is linked and initialized before handing id's out to
1597 // Method*s.
1598 klass()->initialize(CHECK_NULL);
1599
1600 Method* m;
1601 if (name == vmSymbols::object_initializer_name() ||
1602 name == vmSymbols::class_initializer_name()) {
1603 // Never search superclasses for constructors
1604 if (klass->oop_is_instance()) {
1605 m = InstanceKlass::cast(klass())->find_method(name, signature);
1606 } else {
1607 m = NULL;
1608 }
1609 } else {
1610 m = klass->lookup_method(name, signature);
1611 if (m == NULL && klass->oop_is_instance()) {
1612 m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);
1613 }
1614 }
1615 if (m == NULL || (m->is_static() != is_static)) {
1616 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1617 }
1618 return m->jmethod_id();
1619 }
1620
1621
1622 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,
1623 const char *name, const char *sig))
1624 JNIWrapper("GetMethodID");
1625 #ifndef USDT2
1626 DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);
1627 #else /* USDT2 */
1628 HOTSPOT_JNI_GETMETHODID_ENTRY(
1629 env, clazz, (char *) name, (char *) sig);
1630 #endif /* USDT2 */
1631 jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);
1632 #ifndef USDT2
1633 DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);
1634 #else /* USDT2 */
1635 HOTSPOT_JNI_GETMETHODID_RETURN(
1636 (uintptr_t) ret);
1637 #endif /* USDT2 */
1638 return ret;
1639 JNI_END
1640
1641
1642 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,
1643 const char *name, const char *sig))
1644 JNIWrapper("GetStaticMethodID");
1645 #ifndef USDT2
1646 DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);
1647 #else /* USDT2 */
1648 HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(
1649 env, (char *) clazz, (char *) name, (char *)sig);
1650 #endif /* USDT2 */
1651 jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);
1652 #ifndef USDT2
1653 DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);
1654 #else /* USDT2 */
1655 HOTSPOT_JNI_GETSTATICMETHODID_RETURN(
1656 (uintptr_t) ret);
1657 #endif /* USDT2 */
1658 return ret;
1659 JNI_END
1660
1661
1662
1663 //
1664 // Calling Methods
1665 //
1666
1667 #ifndef USDT2
1668 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \
1669 \
1670 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\
1671 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\
1672 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\
1673 \
1674 JNI_ENTRY(ResultType, \
1675 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1676 JNIWrapper("Call" XSTR(Result) "Method"); \
1677 \
1678 DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \
1679 ResultType ret = 0;\
1680 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1681 (const ResultType&)ret);\
1682 \
1683 va_list args; \
1684 va_start(args, methodID); \
1685 JavaValue jvalue(Tag); \
1686 JNI_ArgumentPusherVaArg ap(methodID, args); \
1687 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1688 va_end(args); \
1689 ret = jvalue.get_##ResultType(); \
1690 return ret;\
1691 JNI_END \
1692 \
1693 \
1694 JNI_ENTRY(ResultType, \
1695 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1696 JNIWrapper("Call" XSTR(Result) "MethodV"); \
1697 \
1698 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \
1699 ResultType ret = 0;\
1700 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1701 (const ResultType&)ret);\
1702 \
1703 JavaValue jvalue(Tag); \
1704 JNI_ArgumentPusherVaArg ap(methodID, args); \
1705 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1706 ret = jvalue.get_##ResultType(); \
1707 return ret;\
1708 JNI_END \
1709 \
1710 \
1711 JNI_ENTRY(ResultType, \
1712 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1713 JNIWrapper("Call" XSTR(Result) "MethodA"); \
1714 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \
1715 ResultType ret = 0;\
1716 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1717 (const ResultType&)ret);\
1718 \
1719 JavaValue jvalue(Tag); \
1720 JNI_ArgumentPusherArray ap(methodID, args); \
1721 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1722 ret = jvalue.get_##ResultType(); \
1723 return ret;\
1724 JNI_END
1725
1726 // the runtime type of subword integral basic types is integer
1727 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)
1728 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE)
1729 DEFINE_CALLMETHOD(jchar, Char, T_CHAR)
1730 DEFINE_CALLMETHOD(jshort, Short, T_SHORT)
1731
1732 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT)
1733 DEFINE_CALLMETHOD(jint, Int, T_INT)
1734 DEFINE_CALLMETHOD(jlong, Long, T_LONG)
1735 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT)
1736 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE)
1737
1738 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);
1739 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);
1740 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);
1741
1742 #else /* USDT2 */
1743
1744 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \
1745 , EntryProbe, ReturnProbe) \
1746 \
1747 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \
1748 , ReturnProbe); \
1749 \
1750 JNI_ENTRY(ResultType, \
1751 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1752 JNIWrapper("Call" XSTR(Result) "Method"); \
1753 \
1754 EntryProbe; \
1755 ResultType ret = 0;\
1756 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1757 (const ResultType&)ret);\
1758 \
1759 va_list args; \
1760 va_start(args, methodID); \
1761 JavaValue jvalue(Tag); \
1762 JNI_ArgumentPusherVaArg ap(methodID, args); \
1763 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1764 va_end(args); \
1765 ret = jvalue.get_##ResultType(); \
1766 return ret;\
1767 JNI_END
1768
1769 // the runtime type of subword integral basic types is integer
1770 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN
1771 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1772 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))
1773 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE
1774 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1775 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))
1776 DEFINE_CALLMETHOD(jchar, Char, T_CHAR
1777 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1778 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))
1779 DEFINE_CALLMETHOD(jshort, Short, T_SHORT
1780 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1781 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))
1782
1783 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT
1784 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1785 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))
1786 DEFINE_CALLMETHOD(jint, Int, T_INT,
1787 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1788 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))
1789 DEFINE_CALLMETHOD(jlong, Long, T_LONG
1790 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1791 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))
1792 // Float and double probes don't return value because dtrace doesn't currently support it
1793 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT
1794 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1795 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())
1796 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE
1797 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1798 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())
1799
1800 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \
1801 , EntryProbe, ReturnProbe) \
1802 \
1803 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \
1804 , ReturnProbe); \
1805 \
1806 JNI_ENTRY(ResultType, \
1807 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1808 JNIWrapper("Call" XSTR(Result) "MethodV"); \
1809 \
1810 EntryProbe;\
1811 ResultType ret = 0;\
1812 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1813 (const ResultType&)ret);\
1814 \
1815 JavaValue jvalue(Tag); \
1816 JNI_ArgumentPusherVaArg ap(methodID, args); \
1817 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1818 ret = jvalue.get_##ResultType(); \
1819 return ret;\
1820 JNI_END
1821
1822 // the runtime type of subword integral basic types is integer
1823 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN
1824 , HOTSPOT_JNI_CALLBOOLEANMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1825 HOTSPOT_JNI_CALLBOOLEANMETHODV_RETURN(_ret_ref))
1826 DEFINE_CALLMETHODV(jbyte, Byte, T_BYTE
1827 , HOTSPOT_JNI_CALLBYTEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1828 HOTSPOT_JNI_CALLBYTEMETHODV_RETURN(_ret_ref))
1829 DEFINE_CALLMETHODV(jchar, Char, T_CHAR
1830 , HOTSPOT_JNI_CALLCHARMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1831 HOTSPOT_JNI_CALLCHARMETHODV_RETURN(_ret_ref))
1832 DEFINE_CALLMETHODV(jshort, Short, T_SHORT
1833 , HOTSPOT_JNI_CALLSHORTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1834 HOTSPOT_JNI_CALLSHORTMETHODV_RETURN(_ret_ref))
1835
1836 DEFINE_CALLMETHODV(jobject, Object, T_OBJECT
1837 , HOTSPOT_JNI_CALLOBJECTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1838 HOTSPOT_JNI_CALLOBJECTMETHODV_RETURN(_ret_ref))
1839 DEFINE_CALLMETHODV(jint, Int, T_INT,
1840 HOTSPOT_JNI_CALLINTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1841 HOTSPOT_JNI_CALLINTMETHODV_RETURN(_ret_ref))
1842 DEFINE_CALLMETHODV(jlong, Long, T_LONG
1843 , HOTSPOT_JNI_CALLLONGMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1844 HOTSPOT_JNI_CALLLONGMETHODV_RETURN(_ret_ref))
1845 // Float and double probes don't return value because dtrace doesn't currently support it
1846 DEFINE_CALLMETHODV(jfloat, Float, T_FLOAT
1847 , HOTSPOT_JNI_CALLFLOATMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1848 HOTSPOT_JNI_CALLFLOATMETHODV_RETURN())
1849 DEFINE_CALLMETHODV(jdouble, Double, T_DOUBLE
1850 , HOTSPOT_JNI_CALLDOUBLEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1851 HOTSPOT_JNI_CALLDOUBLEMETHODV_RETURN())
1852
1853 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \
1854 , EntryProbe, ReturnProbe) \
1855 \
1856 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \
1857 , ReturnProbe); \
1858 \
1859 JNI_ENTRY(ResultType, \
1860 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1861 JNIWrapper("Call" XSTR(Result) "MethodA"); \
1862 EntryProbe; \
1863 ResultType ret = 0;\
1864 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1865 (const ResultType&)ret);\
1866 \
1867 JavaValue jvalue(Tag); \
1868 JNI_ArgumentPusherArray ap(methodID, args); \
1869 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1870 ret = jvalue.get_##ResultType(); \
1871 return ret;\
1872 JNI_END
1873
1874 // the runtime type of subword integral basic types is integer
1875 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN
1876 , HOTSPOT_JNI_CALLBOOLEANMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1877 HOTSPOT_JNI_CALLBOOLEANMETHODA_RETURN(_ret_ref))
1878 DEFINE_CALLMETHODA(jbyte, Byte, T_BYTE
1879 , HOTSPOT_JNI_CALLBYTEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1880 HOTSPOT_JNI_CALLBYTEMETHODA_RETURN(_ret_ref))
1881 DEFINE_CALLMETHODA(jchar, Char, T_CHAR
1882 , HOTSPOT_JNI_CALLCHARMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1883 HOTSPOT_JNI_CALLCHARMETHODA_RETURN(_ret_ref))
1884 DEFINE_CALLMETHODA(jshort, Short, T_SHORT
1885 , HOTSPOT_JNI_CALLSHORTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1886 HOTSPOT_JNI_CALLSHORTMETHODA_RETURN(_ret_ref))
1887
1888 DEFINE_CALLMETHODA(jobject, Object, T_OBJECT
1889 , HOTSPOT_JNI_CALLOBJECTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1890 HOTSPOT_JNI_CALLOBJECTMETHODA_RETURN(_ret_ref))
1891 DEFINE_CALLMETHODA(jint, Int, T_INT,
1892 HOTSPOT_JNI_CALLINTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1893 HOTSPOT_JNI_CALLINTMETHODA_RETURN(_ret_ref))
1894 DEFINE_CALLMETHODA(jlong, Long, T_LONG
1895 , HOTSPOT_JNI_CALLLONGMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1896 HOTSPOT_JNI_CALLLONGMETHODA_RETURN(_ret_ref))
1897 // Float and double probes don't return value because dtrace doesn't currently support it
1898 DEFINE_CALLMETHODA(jfloat, Float, T_FLOAT
1899 , HOTSPOT_JNI_CALLFLOATMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1900 HOTSPOT_JNI_CALLFLOATMETHODA_RETURN())
1901 DEFINE_CALLMETHODA(jdouble, Double, T_DOUBLE
1902 , HOTSPOT_JNI_CALLDOUBLEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1903 HOTSPOT_JNI_CALLDOUBLEMETHODA_RETURN())
1904
1905 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());
1906 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());
1907 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());
1908
1909 #endif /* USDT2 */
1910
1911 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))
1912 JNIWrapper("CallVoidMethod");
1913 #ifndef USDT2
1914 DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);
1915 #else /* USDT2 */
1916 HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(
1917 env, obj, (uintptr_t) methodID);
1918 #endif /* USDT2 */
1919 DT_VOID_RETURN_MARK(CallVoidMethod);
1920
1921 va_list args;
1922 va_start(args, methodID);
1923 JavaValue jvalue(T_VOID);
1924 JNI_ArgumentPusherVaArg ap(methodID, args);
1925 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1926 va_end(args);
1927 JNI_END
1928
1929
1930 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))
1931 JNIWrapper("CallVoidMethodV");
1932 #ifndef USDT2
1933 DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);
1934 #else /* USDT2 */
1935 HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(
1936 env, obj, (uintptr_t) methodID);
1937 #endif /* USDT2 */
1938 DT_VOID_RETURN_MARK(CallVoidMethodV);
1939
1940 JavaValue jvalue(T_VOID);
1941 JNI_ArgumentPusherVaArg ap(methodID, args);
1942 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1943 JNI_END
1944
1945
1946 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))
1947 JNIWrapper("CallVoidMethodA");
1948 #ifndef USDT2
1949 DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);
1950 #else /* USDT2 */
1951 HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(
1952 env, obj, (uintptr_t) methodID);
1953 #endif /* USDT2 */
1954 DT_VOID_RETURN_MARK(CallVoidMethodA);
1955
1956 JavaValue jvalue(T_VOID);
1957 JNI_ArgumentPusherArray ap(methodID, args);
1958 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1959 JNI_END
1960
1961
1962 #ifndef USDT2
1963 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \
1964 \
1965 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\
1966 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\
1967 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\
1968 \
1969 JNI_ENTRY(ResultType, \
1970 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
1971 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
1972 \
1973 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\
1974 ResultType ret;\
1975 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
1976 (const ResultType&)ret);\
1977 \
1978 va_list args; \
1979 va_start(args, methodID); \
1980 JavaValue jvalue(Tag); \
1981 JNI_ArgumentPusherVaArg ap(methodID, args); \
1982 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1983 va_end(args); \
1984 ret = jvalue.get_##ResultType(); \
1985 return ret;\
1986 JNI_END \
1987 \
1988 JNI_ENTRY(ResultType, \
1989 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
1990 JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \
1991 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\
1992 ResultType ret;\
1993 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
1994 (const ResultType&)ret);\
1995 \
1996 JavaValue jvalue(Tag); \
1997 JNI_ArgumentPusherVaArg ap(methodID, args); \
1998 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1999 ret = jvalue.get_##ResultType(); \
2000 return ret;\
2001 JNI_END \
2002 \
2003 JNI_ENTRY(ResultType, \
2004 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2005 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2006 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\
2007 ResultType ret;\
2008 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2009 (const ResultType&)ret);\
2010 \
2011 JavaValue jvalue(Tag); \
2012 JNI_ArgumentPusherArray ap(methodID, args); \
2013 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2014 ret = jvalue.get_##ResultType(); \
2015 return ret;\
2016 JNI_END
2017
2018 // the runtime type of subword integral basic types is integer
2019 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)
2020 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE)
2021 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR)
2022 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT)
2023
2024 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT)
2025 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT)
2026 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG)
2027 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT)
2028 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE)
2029
2030
2031 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);
2032 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);
2033 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);
2034
2035 #else /* USDT2 */
2036
2037 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \
2038 , EntryProbe, ReturnProbe) \
2039 \
2040 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \
2041 , ReturnProbe);\
2042 \
2043 JNI_ENTRY(ResultType, \
2044 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
2045 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
2046 \
2047 EntryProbe;\
2048 ResultType ret;\
2049 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
2050 (const ResultType&)ret);\
2051 \
2052 va_list args; \
2053 va_start(args, methodID); \
2054 JavaValue jvalue(Tag); \
2055 JNI_ArgumentPusherVaArg ap(methodID, args); \
2056 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2057 va_end(args); \
2058 ret = jvalue.get_##ResultType(); \
2059 return ret;\
2060 JNI_END
2061
2062 // the runtime type of subword integral basic types is integer
2063 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN
2064 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2065 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))
2066 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE
2067 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2068 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))
2069 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR
2070 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2071 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))
2072 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT
2073 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2074 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))
2075
2076 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT
2077 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2078 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))
2079 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT
2080 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2081 HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))
2082 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG
2083 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2084 // Float and double probes don't return value because dtrace doesn't currently support it
2085 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))
2086 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT
2087 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2088 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())
2089 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE
2090 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2091 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())
2092
2093 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \
2094 , EntryProbe, ReturnProbe) \
2095 \
2096 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \
2097 , ReturnProbe);\
2098 \
2099 JNI_ENTRY(ResultType, \
2100 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
2101 JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \
2102 \
2103 EntryProbe;\
2104 ResultType ret;\
2105 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
2106 (const ResultType&)ret);\
2107 \
2108 JavaValue jvalue(Tag); \
2109 JNI_ArgumentPusherVaArg ap(methodID, args); \
2110 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2111 ret = jvalue.get_##ResultType(); \
2112 return ret;\
2113 JNI_END
2114
2115 // the runtime type of subword integral basic types is integer
2116 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN
2117 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2118 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))
2119 DEFINE_CALLNONVIRTUALMETHODV(jbyte, Byte, T_BYTE
2120 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2121 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))
2122 DEFINE_CALLNONVIRTUALMETHODV(jchar, Char, T_CHAR
2123 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2124 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))
2125 DEFINE_CALLNONVIRTUALMETHODV(jshort, Short, T_SHORT
2126 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2127 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))
2128
2129 DEFINE_CALLNONVIRTUALMETHODV(jobject, Object, T_OBJECT
2130 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2131 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))
2132 DEFINE_CALLNONVIRTUALMETHODV(jint, Int, T_INT
2133 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2134 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))
2135 DEFINE_CALLNONVIRTUALMETHODV(jlong, Long, T_LONG
2136 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2137 // Float and double probes don't return value because dtrace doesn't currently support it
2138 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))
2139 DEFINE_CALLNONVIRTUALMETHODV(jfloat, Float, T_FLOAT
2140 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2141 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())
2142 DEFINE_CALLNONVIRTUALMETHODV(jdouble, Double, T_DOUBLE
2143 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2144 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())
2145
2146 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \
2147 , EntryProbe, ReturnProbe) \
2148 \
2149 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \
2150 , ReturnProbe);\
2151 \
2152 JNI_ENTRY(ResultType, \
2153 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2154 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2155 \
2156 EntryProbe;\
2157 ResultType ret;\
2158 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2159 (const ResultType&)ret);\
2160 \
2161 JavaValue jvalue(Tag); \
2162 JNI_ArgumentPusherArray ap(methodID, args); \
2163 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2164 ret = jvalue.get_##ResultType(); \
2165 return ret;\
2166 JNI_END
2167
2168 // the runtime type of subword integral basic types is integer
2169 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN
2170 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2171 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))
2172 DEFINE_CALLNONVIRTUALMETHODA(jbyte, Byte, T_BYTE
2173 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2174 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))
2175 DEFINE_CALLNONVIRTUALMETHODA(jchar, Char, T_CHAR
2176 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2177 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))
2178 DEFINE_CALLNONVIRTUALMETHODA(jshort, Short, T_SHORT
2179 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2180 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))
2181
2182 DEFINE_CALLNONVIRTUALMETHODA(jobject, Object, T_OBJECT
2183 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2184 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))
2185 DEFINE_CALLNONVIRTUALMETHODA(jint, Int, T_INT
2186 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2187 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))
2188 DEFINE_CALLNONVIRTUALMETHODA(jlong, Long, T_LONG
2189 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2190 // Float and double probes don't return value because dtrace doesn't currently support it
2191 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))
2192 DEFINE_CALLNONVIRTUALMETHODA(jfloat, Float, T_FLOAT
2193 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2194 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())
2195 DEFINE_CALLNONVIRTUALMETHODA(jdouble, Double, T_DOUBLE
2196 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2197 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())
2198
2199 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod
2200 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());
2201 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV
2202 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());
2203 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA
2204 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());
2205 #endif /* USDT2 */
2206
2207 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))
2208 JNIWrapper("CallNonvirtualVoidMethod");
2209
2210 #ifndef USDT2
2211 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,
2212 env, obj, cls, methodID);
2213 #else /* USDT2 */
2214 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(
2215 env, obj, cls, (uintptr_t) methodID);
2216 #endif /* USDT2 */
2217 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);
2218
2219 va_list args;
2220 va_start(args, methodID);
2221 JavaValue jvalue(T_VOID);
2222 JNI_ArgumentPusherVaArg ap(methodID, args);
2223 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2224 va_end(args);
2225 JNI_END
2226
2227
2228 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))
2229 JNIWrapper("CallNonvirtualVoidMethodV");
2230
2231 #ifndef USDT2
2232 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,
2233 env, obj, cls, methodID);
2234 #else /* USDT2 */
2235 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(
2236 env, obj, cls, (uintptr_t) methodID);
2237 #endif /* USDT2 */
2238 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);
2239
2240 JavaValue jvalue(T_VOID);
2241 JNI_ArgumentPusherVaArg ap(methodID, args);
2242 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2243 JNI_END
2244
2245
2246 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))
2247 JNIWrapper("CallNonvirtualVoidMethodA");
2248 #ifndef USDT2
2249 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,
2250 env, obj, cls, methodID);
2251 #else /* USDT2 */
2252 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(
2253 env, obj, cls, (uintptr_t) methodID);
2254 #endif /* USDT2 */
2255 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);
2256 JavaValue jvalue(T_VOID);
2257 JNI_ArgumentPusherArray ap(methodID, args);
2258 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2259 JNI_END
2260
2261
2262 #ifndef USDT2
2263 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \
2264 \
2265 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\
2266 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\
2267 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\
2268 \
2269 JNI_ENTRY(ResultType, \
2270 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2271 JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2272 \
2273 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\
2274 ResultType ret = 0;\
2275 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2276 (const ResultType&)ret);\
2277 \
2278 va_list args; \
2279 va_start(args, methodID); \
2280 JavaValue jvalue(Tag); \
2281 JNI_ArgumentPusherVaArg ap(methodID, args); \
2282 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2283 va_end(args); \
2284 ret = jvalue.get_##ResultType(); \
2285 return ret;\
2286 JNI_END \
2287 \
2288 JNI_ENTRY(ResultType, \
2289 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2290 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2291 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\
2292 ResultType ret = 0;\
2293 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2294 (const ResultType&)ret);\
2295 \
2296 JavaValue jvalue(Tag); \
2297 JNI_ArgumentPusherVaArg ap(methodID, args); \
2298 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2299 ret = jvalue.get_##ResultType(); \
2300 return ret;\
2301 JNI_END \
2302 \
2303 JNI_ENTRY(ResultType, \
2304 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2305 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2306 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\
2307 ResultType ret = 0;\
2308 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2309 (const ResultType&)ret);\
2310 \
2311 JavaValue jvalue(Tag); \
2312 JNI_ArgumentPusherArray ap(methodID, args); \
2313 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2314 ret = jvalue.get_##ResultType(); \
2315 return ret;\
2316 JNI_END
2317
2318 // the runtime type of subword integral basic types is integer
2319 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)
2320 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE)
2321 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR)
2322 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT)
2323
2324 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT)
2325 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT)
2326 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG)
2327 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT)
2328 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE)
2329
2330
2331 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);
2332 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);
2333 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);
2334
2335 #else /* USDT2 */
2336
2337 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \
2338 , EntryProbe, ResultProbe) \
2339 \
2340 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \
2341 , ResultProbe); \
2342 \
2343 JNI_ENTRY(ResultType, \
2344 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2345 JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2346 \
2347 EntryProbe; \
2348 ResultType ret = 0;\
2349 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2350 (const ResultType&)ret);\
2351 \
2352 va_list args; \
2353 va_start(args, methodID); \
2354 JavaValue jvalue(Tag); \
2355 JNI_ArgumentPusherVaArg ap(methodID, args); \
2356 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2357 va_end(args); \
2358 ret = jvalue.get_##ResultType(); \
2359 return ret;\
2360 JNI_END
2361
2362 // the runtime type of subword integral basic types is integer
2363 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN
2364 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2365 HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));
2366 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE
2367 , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2368 HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));
2369 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR
2370 , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2371 HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));
2372 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT
2373 , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2374 HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));
2375
2376 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT
2377 , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2378 HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));
2379 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT
2380 , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2381 HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));
2382 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG
2383 , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2384 HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));
2385 // Float and double probes don't return value because dtrace doesn't currently support it
2386 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT
2387 , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2388 HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());
2389 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE
2390 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2391 HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());
2392
2393 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \
2394 , EntryProbe, ResultProbe) \
2395 \
2396 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \
2397 , ResultProbe); \
2398 \
2399 JNI_ENTRY(ResultType, \
2400 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2401 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2402 \
2403 EntryProbe; \
2404 ResultType ret = 0;\
2405 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2406 (const ResultType&)ret);\
2407 \
2408 JavaValue jvalue(Tag); \
2409 JNI_ArgumentPusherVaArg ap(methodID, args); \
2410 /* Make sure class is initialized before trying to invoke its method */ \
2411 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \
2412 k()->initialize(CHECK_0); \
2413 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2414 va_end(args); \
2415 ret = jvalue.get_##ResultType(); \
2416 return ret;\
2417 JNI_END
2418
2419 // the runtime type of subword integral basic types is integer
2420 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN
2421 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2422 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));
2423 DEFINE_CALLSTATICMETHODV(jbyte, Byte, T_BYTE
2424 , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2425 HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));
2426 DEFINE_CALLSTATICMETHODV(jchar, Char, T_CHAR
2427 , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2428 HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));
2429 DEFINE_CALLSTATICMETHODV(jshort, Short, T_SHORT
2430 , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2431 HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));
2432
2433 DEFINE_CALLSTATICMETHODV(jobject, Object, T_OBJECT
2434 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2435 HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));
2436 DEFINE_CALLSTATICMETHODV(jint, Int, T_INT
2437 , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2438 HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));
2439 DEFINE_CALLSTATICMETHODV(jlong, Long, T_LONG
2440 , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2441 HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));
2442 // Float and double probes don't return value because dtrace doesn't currently support it
2443 DEFINE_CALLSTATICMETHODV(jfloat, Float, T_FLOAT
2444 , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2445 HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());
2446 DEFINE_CALLSTATICMETHODV(jdouble, Double, T_DOUBLE
2447 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2448 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());
2449
2450 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \
2451 , EntryProbe, ResultProbe) \
2452 \
2453 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \
2454 , ResultProbe); \
2455 \
2456 JNI_ENTRY(ResultType, \
2457 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2458 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2459 \
2460 EntryProbe; \
2461 ResultType ret = 0;\
2462 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2463 (const ResultType&)ret);\
2464 \
2465 JavaValue jvalue(Tag); \
2466 JNI_ArgumentPusherArray ap(methodID, args); \
2467 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2468 ret = jvalue.get_##ResultType(); \
2469 return ret;\
2470 JNI_END
2471
2472 // the runtime type of subword integral basic types is integer
2473 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN
2474 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2475 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));
2476 DEFINE_CALLSTATICMETHODA(jbyte, Byte, T_BYTE
2477 , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2478 HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));
2479 DEFINE_CALLSTATICMETHODA(jchar, Char, T_CHAR
2480 , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2481 HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));
2482 DEFINE_CALLSTATICMETHODA(jshort, Short, T_SHORT
2483 , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2484 HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));
2485
2486 DEFINE_CALLSTATICMETHODA(jobject, Object, T_OBJECT
2487 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2488 HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));
2489 DEFINE_CALLSTATICMETHODA(jint, Int, T_INT
2490 , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2491 HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));
2492 DEFINE_CALLSTATICMETHODA(jlong, Long, T_LONG
2493 , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2494 HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));
2495 // Float and double probes don't return value because dtrace doesn't currently support it
2496 DEFINE_CALLSTATICMETHODA(jfloat, Float, T_FLOAT
2497 , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2498 HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());
2499 DEFINE_CALLSTATICMETHODA(jdouble, Double, T_DOUBLE
2500 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2501 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());
2502
2503 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod
2504 , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());
2505 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV
2506 , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());
2507 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA
2508 , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());
2509 #endif /* USDT2 */
2510
2511 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))
2512 JNIWrapper("CallStaticVoidMethod");
2513 #ifndef USDT2
2514 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);
2515 #else /* USDT2 */
2516 HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(
2517 env, cls, (uintptr_t) methodID);
2518 #endif /* USDT2 */
2519 DT_VOID_RETURN_MARK(CallStaticVoidMethod);
2520
2521 va_list args;
2522 va_start(args, methodID);
2523 JavaValue jvalue(T_VOID);
2524 JNI_ArgumentPusherVaArg ap(methodID, args);
2525 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2526 va_end(args);
2527 JNI_END
2528
2529
2530 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))
2531 JNIWrapper("CallStaticVoidMethodV");
2532 #ifndef USDT2
2533 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);
2534 #else /* USDT2 */
2535 HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(
2536 env, cls, (uintptr_t) methodID);
2537 #endif /* USDT2 */
2538 DT_VOID_RETURN_MARK(CallStaticVoidMethodV);
2539
2540 JavaValue jvalue(T_VOID);
2541 JNI_ArgumentPusherVaArg ap(methodID, args);
2542 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2543 JNI_END
2544
2545
2546 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))
2547 JNIWrapper("CallStaticVoidMethodA");
2548 #ifndef USDT2
2549 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);
2550 #else /* USDT2 */
2551 HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(
2552 env, cls, (uintptr_t) methodID);
2553 #endif /* USDT2 */
2554 DT_VOID_RETURN_MARK(CallStaticVoidMethodA);
2555
2556 JavaValue jvalue(T_VOID);
2557 JNI_ArgumentPusherArray ap(methodID, args);
2558 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2559 JNI_END
2560
2561
2562 //
2563 // Accessing Fields
2564 //
2565
2566
2567 #ifndef USDT2
2568 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);
2569 #else /* USDT2 */
2570 DT_RETURN_MARK_DECL(GetFieldID, jfieldID
2571 , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));
2572 #endif /* USDT2 */
2573
2574 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,
2575 const char *name, const char *sig))
2576 JNIWrapper("GetFieldID");
2577 #ifndef USDT2
2578 DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);
2579 #else /* USDT2 */
2580 HOTSPOT_JNI_GETFIELDID_ENTRY(
2581 env, clazz, (char *) name, (char *) sig);
2582 #endif /* USDT2 */
2583 jfieldID ret = 0;
2584 DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);
2585
2586 // The class should have been loaded (we have an instance of the class
2587 // passed in) so the field and signature should already be in the symbol
2588 // table. If they're not there, the field doesn't exist.
2589 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2590 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2591 if (fieldname == NULL || signame == NULL) {
2592 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2593 }
2594 KlassHandle k(THREAD,
2595 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2596 // Make sure class is initialized before handing id's out to fields
2597 k()->initialize(CHECK_NULL);
2598
2599 fieldDescriptor fd;
2600 if (!k()->oop_is_instance() ||
2601 !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {
2602 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2603 }
2604
2605 // A jfieldID for a non-static field is simply the offset of the field within the instanceOop
2606 // It may also have hash bits for k, if VerifyJNIFields is turned on.
2607 ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());
2608 return ret;
2609 JNI_END
2610
2611
2612 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))
2613 JNIWrapper("GetObjectField");
2614 #ifndef USDT2
2615 DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);
2616 #else /* USDT2 */
2617 HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(
2618 env, obj, (uintptr_t) fieldID);
2619 #endif /* USDT2 */
2620 oop o = JNIHandles::resolve_non_null(obj);
2621 Klass* k = o->klass();
2622 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2623 // Keep JVMTI addition small and only check enabled flag here.
2624 // jni_GetField_probe() assumes that is okay to create handles.
2625 if (JvmtiExport::should_post_field_access()) {
2626 o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);
2627 }
2628 jobject ret = JNIHandles::make_local(env, o->obj_field(offset));
2629 #if INCLUDE_ALL_GCS
2630 // If G1 is enabled and we are accessing the value of the referent
2631 // field in a reference object then we need to register a non-null
2632 // referent with the SATB barrier.
2633 if (UseG1GC) {
2634 bool needs_barrier = false;
2635
2636 if (ret != NULL &&
2637 offset == java_lang_ref_Reference::referent_offset &&
2638 InstanceKlass::cast(k)->reference_type() != REF_NONE) {
2639 assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");
2640 needs_barrier = true;
2641 }
2642
2643 if (needs_barrier) {
2644 oop referent = JNIHandles::resolve(ret);
2645 G1SATBCardTableModRefBS::enqueue(referent);
2646 }
2647 }
2648 #endif // INCLUDE_ALL_GCS
2649 #ifndef USDT2
2650 DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);
2651 #else /* USDT2 */
2652 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(
2653 ret);
2654 #endif /* USDT2 */
2655 return ret;
2656 JNI_END
2657
2658
2659 #ifndef USDT2
2660 #define DEFINE_GETFIELD(Return,Fieldname,Result) \
2661 \
2662 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\
2663 \
2664 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2665 JNIWrapper("Get" XSTR(Result) "Field"); \
2666 \
2667 DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\
2668 Return ret = 0;\
2669 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2670 \
2671 oop o = JNIHandles::resolve_non_null(obj); \
2672 Klass* k = o->klass(); \
2673 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2674 /* Keep JVMTI addition small and only check enabled flag here. */ \
2675 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2676 /* and creates a ResetNoHandleMark. */ \
2677 if (JvmtiExport::should_post_field_access()) { \
2678 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2679 } \
2680 ret = o->Fieldname##_field(offset); \
2681 return ret; \
2682 JNI_END
2683
2684 DEFINE_GETFIELD(jboolean, bool, Boolean)
2685 DEFINE_GETFIELD(jbyte, byte, Byte)
2686 DEFINE_GETFIELD(jchar, char, Char)
2687 DEFINE_GETFIELD(jshort, short, Short)
2688 DEFINE_GETFIELD(jint, int, Int)
2689 DEFINE_GETFIELD(jlong, long, Long)
2690 DEFINE_GETFIELD(jfloat, float, Float)
2691 DEFINE_GETFIELD(jdouble, double, Double)
2692
2693 #else /* USDT2 */
2694
2695 #define DEFINE_GETFIELD(Return,Fieldname,Result \
2696 , EntryProbe, ReturnProbe) \
2697 \
2698 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \
2699 , ReturnProbe); \
2700 \
2701 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2702 JNIWrapper("Get" XSTR(Result) "Field"); \
2703 \
2704 EntryProbe; \
2705 Return ret = 0;\
2706 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2707 \
2708 oop o = JNIHandles::resolve_non_null(obj); \
2709 Klass* k = o->klass(); \
2710 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2711 /* Keep JVMTI addition small and only check enabled flag here. */ \
2712 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2713 /* and creates a ResetNoHandleMark. */ \
2714 if (JvmtiExport::should_post_field_access()) { \
2715 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2716 } \
2717 ret = o->Fieldname##_field(offset); \
2718 return ret; \
2719 JNI_END
2720
2721 DEFINE_GETFIELD(jboolean, bool, Boolean
2722 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2723 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))
2724 DEFINE_GETFIELD(jbyte, byte, Byte
2725 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2726 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))
2727 DEFINE_GETFIELD(jchar, char, Char
2728 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2729 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))
2730 DEFINE_GETFIELD(jshort, short, Short
2731 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2732 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))
2733 DEFINE_GETFIELD(jint, int, Int
2734 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2735 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))
2736 DEFINE_GETFIELD(jlong, long, Long
2737 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2738 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))
2739 // Float and double probes don't return value because dtrace doesn't currently support it
2740 DEFINE_GETFIELD(jfloat, float, Float
2741 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2742 HOTSPOT_JNI_GETFLOATFIELD_RETURN())
2743 DEFINE_GETFIELD(jdouble, double, Double
2744 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2745 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())
2746 #endif /* USDT2 */
2747
2748 address jni_GetBooleanField_addr() {
2749 return (address)jni_GetBooleanField;
2750 }
2751 address jni_GetByteField_addr() {
2752 return (address)jni_GetByteField;
2753 }
2754 address jni_GetCharField_addr() {
2755 return (address)jni_GetCharField;
2756 }
2757 address jni_GetShortField_addr() {
2758 return (address)jni_GetShortField;
2759 }
2760 address jni_GetIntField_addr() {
2761 return (address)jni_GetIntField;
2762 }
2763 address jni_GetLongField_addr() {
2764 return (address)jni_GetLongField;
2765 }
2766 address jni_GetFloatField_addr() {
2767 return (address)jni_GetFloatField;
2768 }
2769 address jni_GetDoubleField_addr() {
2770 return (address)jni_GetDoubleField;
2771 }
2772
2773 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))
2774 JNIWrapper("SetObjectField");
2775 #ifndef USDT2
2776 DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);
2777 #else /* USDT2 */
2778 HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(
2779 env, obj, (uintptr_t) fieldID, value);
2780 #endif /* USDT2 */
2781 oop o = JNIHandles::resolve_non_null(obj);
2782 Klass* k = o->klass();
2783 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2784 // Keep JVMTI addition small and only check enabled flag here.
2785 // jni_SetField_probe_nh() assumes that is not okay to create handles
2786 // and creates a ResetNoHandleMark.
2787 if (JvmtiExport::should_post_field_modification()) {
2788 jvalue field_value;
2789 field_value.l = value;
2790 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);
2791 }
2792 o->obj_field_put(offset, JNIHandles::resolve(value));
2793 #ifndef USDT2
2794 DTRACE_PROBE(hotspot_jni, SetObjectField__return);
2795 #else /* USDT2 */
2796 HOTSPOT_JNI_SETOBJECTFIELD_RETURN(
2797 );
2798 #endif /* USDT2 */
2799 JNI_END
2800
2801 #ifndef USDT2
2802 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \
2803 \
2804 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2805 JNIWrapper("Set" XSTR(Result) "Field"); \
2806 \
2807 FP_SELECT_##Result( \
2808 DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \
2809 DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \
2810 \
2811 oop o = JNIHandles::resolve_non_null(obj); \
2812 Klass* k = o->klass(); \
2813 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2814 /* Keep JVMTI addition small and only check enabled flag here. */ \
2815 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2816 /* and creates a ResetNoHandleMark. */ \
2817 if (JvmtiExport::should_post_field_modification()) { \
2818 jvalue field_value; \
2819 field_value.unionType = value; \
2820 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2821 } \
2822 o->Fieldname##_field_put(offset, value); \
2823 DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\
2824 JNI_END
2825
2826 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z)
2827 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b)
2828 DEFINE_SETFIELD(jchar, char, Char, 'C', c)
2829 DEFINE_SETFIELD(jshort, short, Short, 'S', s)
2830 DEFINE_SETFIELD(jint, int, Int, 'I', i)
2831 DEFINE_SETFIELD(jlong, long, Long, 'J', j)
2832 DEFINE_SETFIELD(jfloat, float, Float, 'F', f)
2833 DEFINE_SETFIELD(jdouble, double, Double, 'D', d)
2834
2835 #else /* USDT2 */
2836
2837 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \
2838 , EntryProbe, ReturnProbe) \
2839 \
2840 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2841 JNIWrapper("Set" XSTR(Result) "Field"); \
2842 \
2843 EntryProbe; \
2844 \
2845 oop o = JNIHandles::resolve_non_null(obj); \
2846 Klass* k = o->klass(); \
2847 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2848 /* Keep JVMTI addition small and only check enabled flag here. */ \
2849 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2850 /* and creates a ResetNoHandleMark. */ \
2851 if (JvmtiExport::should_post_field_modification()) { \
2852 jvalue field_value; \
2853 field_value.unionType = value; \
2854 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2855 } \
2856 if (SigType == 'Z') { value = ((jboolean)value) & 1; } \
2857 o->Fieldname##_field_put(offset, value); \
2858 ReturnProbe; \
2859 JNI_END
2860
2861 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z
2862 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2863 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
2864 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b
2865 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2866 HOTSPOT_JNI_SETBYTEFIELD_RETURN())
2867 DEFINE_SETFIELD(jchar, char, Char, 'C', c
2868 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2869 HOTSPOT_JNI_SETCHARFIELD_RETURN())
2870 DEFINE_SETFIELD(jshort, short, Short, 'S', s
2871 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2872 HOTSPOT_JNI_SETSHORTFIELD_RETURN())
2873 DEFINE_SETFIELD(jint, int, Int, 'I', i
2874 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2875 HOTSPOT_JNI_SETINTFIELD_RETURN())
2876 DEFINE_SETFIELD(jlong, long, Long, 'J', j
2877 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2878 HOTSPOT_JNI_SETLONGFIELD_RETURN())
2879 // Float and double probes don't return value because dtrace doesn't currently support it
2880 DEFINE_SETFIELD(jfloat, float, Float, 'F', f
2881 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2882 HOTSPOT_JNI_SETFLOATFIELD_RETURN())
2883 DEFINE_SETFIELD(jdouble, double, Double, 'D', d
2884 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2885 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())
2886 #endif /* USDT2 */
2887
2888 #ifndef USDT2
2889 DT_RETURN_MARK_DECL(ToReflectedField, jobject);
2890 #else /* USDT2 */
2891 DT_RETURN_MARK_DECL(ToReflectedField, jobject
2892 , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));
2893 #endif /* USDT2 */
2894
2895 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))
2896 JNIWrapper("ToReflectedField");
2897 #ifndef USDT2
2898 DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,
2899 env, cls, fieldID, isStatic);
2900 #else /* USDT2 */
2901 HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(
2902 env, cls, (uintptr_t) fieldID, isStatic);
2903 #endif /* USDT2 */
2904 jobject ret = NULL;
2905 DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);
2906
2907 fieldDescriptor fd;
2908 bool found = false;
2909 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));
2910
2911 assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");
2912
2913 if (isStatic) {
2914 // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.
2915 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2916 assert(id->is_static_field_id(), "invalid static field id");
2917 found = id->find_local_field(&fd);
2918 } else {
2919 // Non-static field. The fieldID is really the offset of the field within the instanceOop.
2920 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2921 found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);
2922 }
2923 assert(found, "bad fieldID passed into jni_ToReflectedField");
2924 oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);
2925 ret = JNIHandles::make_local(env, reflected);
2926 return ret;
2927 JNI_END
2928
2929
2930 //
2931 // Accessing Static Fields
2932 //
2933 #ifndef USDT2
2934 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);
2935 #else /* USDT2 */
2936 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID
2937 , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));
2938 #endif /* USDT2 */
2939
2940 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,
2941 const char *name, const char *sig))
2942 JNIWrapper("GetStaticFieldID");
2943 #ifndef USDT2
2944 DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);
2945 #else /* USDT2 */
2946 HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(
2947 env, clazz, (char *) name, (char *) sig);
2948 #endif /* USDT2 */
2949 jfieldID ret = NULL;
2950 DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);
2951
2952 // The class should have been loaded (we have an instance of the class
2953 // passed in) so the field and signature should already be in the symbol
2954 // table. If they're not there, the field doesn't exist.
2955 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2956 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2957 if (fieldname == NULL || signame == NULL) {
2958 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2959 }
2960 KlassHandle k(THREAD,
2961 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2962 // Make sure class is initialized before handing id's out to static fields
2963 k()->initialize(CHECK_NULL);
2964
2965 fieldDescriptor fd;
2966 if (!k()->oop_is_instance() ||
2967 !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {
2968 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2969 }
2970
2971 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
2972 JNIid* id = fd.field_holder()->jni_id_for(fd.offset());
2973 debug_only(id->set_is_static_field_id();)
2974
2975 debug_only(id->verify(fd.field_holder()));
2976
2977 ret = jfieldIDWorkaround::to_static_jfieldID(id);
2978 return ret;
2979 JNI_END
2980
2981
2982 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))
2983 JNIWrapper("GetStaticObjectField");
2984 #ifndef USDT2
2985 DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);
2986 #else /* USDT2 */
2987 HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(
2988 env, clazz, (uintptr_t) fieldID);
2989 #endif /* USDT2 */
2990 #if INCLUDE_JNI_CHECK
2991 DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)
2992 #endif // INCLUDE_JNI_CHECK
2993 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2994 assert(id->is_static_field_id(), "invalid static field id");
2995 // Keep JVMTI addition small and only check enabled flag here.
2996 // jni_GetField_probe() assumes that is okay to create handles.
2997 if (JvmtiExport::should_post_field_access()) {
2998 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);
2999 }
3000 jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));
3001 #ifndef USDT2
3002 DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);
3003 #else /* USDT2 */
3004 HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(
3005 ret);
3006 #endif /* USDT2 */
3007 return ret;
3008 JNI_END
3009
3010 #ifndef USDT2
3011 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \
3012 \
3013 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\
3014 \
3015 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3016 JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3017 DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\
3018 Return ret = 0;\
3019 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3020 (const Return&)ret);\
3021 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3022 assert(id->is_static_field_id(), "invalid static field id"); \
3023 /* Keep JVMTI addition small and only check enabled flag here. */ \
3024 /* jni_GetField_probe() assumes that is okay to create handles. */ \
3025 if (JvmtiExport::should_post_field_access()) { \
3026 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3027 } \
3028 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3029 return ret;\
3030 JNI_END
3031
3032 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean)
3033 DEFINE_GETSTATICFIELD(jbyte, byte, Byte)
3034 DEFINE_GETSTATICFIELD(jchar, char, Char)
3035 DEFINE_GETSTATICFIELD(jshort, short, Short)
3036 DEFINE_GETSTATICFIELD(jint, int, Int)
3037 DEFINE_GETSTATICFIELD(jlong, long, Long)
3038 DEFINE_GETSTATICFIELD(jfloat, float, Float)
3039 DEFINE_GETSTATICFIELD(jdouble, double, Double)
3040
3041 #else /* USDT2 */
3042
3043 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \
3044 , EntryProbe, ReturnProbe) \
3045 \
3046 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \
3047 , ReturnProbe); \
3048 \
3049 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3050 JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3051 EntryProbe; \
3052 Return ret = 0;\
3053 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3054 (const Return&)ret);\
3055 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3056 assert(id->is_static_field_id(), "invalid static field id"); \
3057 /* Keep JVMTI addition small and only check enabled flag here. */ \
3058 /* jni_GetField_probe() assumes that is okay to create handles. */ \
3059 if (JvmtiExport::should_post_field_access()) { \
3060 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3061 } \
3062 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3063 return ret;\
3064 JNI_END
3065
3066 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean
3067 , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))
3068 DEFINE_GETSTATICFIELD(jbyte, byte, Byte
3069 , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref) )
3070 DEFINE_GETSTATICFIELD(jchar, char, Char
3071 , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref) )
3072 DEFINE_GETSTATICFIELD(jshort, short, Short
3073 , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref) )
3074 DEFINE_GETSTATICFIELD(jint, int, Int
3075 , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref) )
3076 DEFINE_GETSTATICFIELD(jlong, long, Long
3077 , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref) )
3078 // Float and double probes don't return value because dtrace doesn't currently support it
3079 DEFINE_GETSTATICFIELD(jfloat, float, Float
3080 , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN() )
3081 DEFINE_GETSTATICFIELD(jdouble, double, Double
3082 , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN() )
3083 #endif /* USDT2 */
3084
3085 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))
3086 JNIWrapper("SetStaticObjectField");
3087 #ifndef USDT2
3088 DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);
3089 #else /* USDT2 */
3090 HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(
3091 env, clazz, (uintptr_t) fieldID, value);
3092 #endif /* USDT2 */
3093 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
3094 assert(id->is_static_field_id(), "invalid static field id");
3095 // Keep JVMTI addition small and only check enabled flag here.
3096 // jni_SetField_probe() assumes that is okay to create handles.
3097 if (JvmtiExport::should_post_field_modification()) {
3098 jvalue field_value;
3099 field_value.l = value;
3100 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);
3101 }
3102 id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));
3103 #ifndef USDT2
3104 DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);
3105 #else /* USDT2 */
3106 HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(
3107 );
3108 #endif /* USDT2 */
3109 JNI_END
3110
3111
3112 #ifndef USDT2
3113 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \
3114 \
3115 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3116 JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3117 FP_SELECT_##Result( \
3118 DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \
3119 DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \
3120 \
3121 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3122 assert(id->is_static_field_id(), "invalid static field id"); \
3123 /* Keep JVMTI addition small and only check enabled flag here. */ \
3124 /* jni_SetField_probe() assumes that is okay to create handles. */ \
3125 if (JvmtiExport::should_post_field_modification()) { \
3126 jvalue field_value; \
3127 field_value.unionType = value; \
3128 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3129 } \
3130 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3131 DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\
3132 JNI_END
3133
3134 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z)
3135 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b)
3136 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c)
3137 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s)
3138 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i)
3139 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j)
3140 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f)
3141 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d)
3142
3143 #else /* USDT2 */
3144
3145 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \
3146 , EntryProbe, ReturnProbe) \
3147 \
3148 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3149 JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3150 EntryProbe; \
3151 \
3152 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3153 assert(id->is_static_field_id(), "invalid static field id"); \
3154 /* Keep JVMTI addition small and only check enabled flag here. */ \
3155 /* jni_SetField_probe() assumes that is okay to create handles. */ \
3156 if (JvmtiExport::should_post_field_modification()) { \
3157 jvalue field_value; \
3158 field_value.unionType = value; \
3159 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3160 } \
3161 if (SigType == 'Z') { value = ((jboolean)value) & 1; } \
3162 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3163 ReturnProbe;\
3164 JNI_END
3165
3166 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z
3167 , HOTSPOT_JNI_SETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),
3168 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
3169 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b
3170 , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3171 HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())
3172 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c
3173 , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3174 HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())
3175 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s
3176 , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3177 HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())
3178 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i
3179 , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3180 HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())
3181 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j
3182 , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3183 HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())
3184 // Float and double probes don't return value because dtrace doesn't currently support it
3185 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f
3186 , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3187 HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())
3188 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d
3189 , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3190 HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())
3191 #endif /* USDT2 */
3192
3193 //
3194 // String Operations
3195 //
3196
3197 // Unicode Interface
3198
3199 #ifndef USDT2
3200 DT_RETURN_MARK_DECL(NewString, jstring);
3201 #else /* USDT2 */
3202 DT_RETURN_MARK_DECL(NewString, jstring
3203 , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));
3204 #endif /* USDT2 */
3205
3206 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))
3207 JNIWrapper("NewString");
3208 #ifndef USDT2
3209 DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);
3210 #else /* USDT2 */
3211 HOTSPOT_JNI_NEWSTRING_ENTRY(
3212 env, (uint16_t *) unicodeChars, len);
3213 #endif /* USDT2 */
3214 jstring ret = NULL;
3215 DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);
3216 oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);
3217 ret = (jstring) JNIHandles::make_local(env, string);
3218 return ret;
3219 JNI_END
3220
3221
3222 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))
3223 JNIWrapper("GetStringLength");
3224 #ifndef USDT2
3225 DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);
3226 #else /* USDT2 */
3227 HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(
3228 env, string);
3229 #endif /* USDT2 */
3230 jsize ret = 0;
3231 oop s = JNIHandles::resolve_non_null(string);
3232 if (java_lang_String::value(s) != NULL) {
3233 ret = java_lang_String::length(s);
3234 }
3235 #ifndef USDT2
3236 DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);
3237 #else /* USDT2 */
3238 HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(
3239 ret);
3240 #endif /* USDT2 */
3241 return ret;
3242 JNI_END
3243
3244
3245 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(
3246 JNIEnv *env, jstring string, jboolean *isCopy))
3247 JNIWrapper("GetStringChars");
3248 #ifndef USDT2
3249 DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);
3250 #else /* USDT2 */
3251 HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(
3252 env, string, (uintptr_t *) isCopy);
3253 #endif /* USDT2 */
3254 jchar* buf = NULL;
3255 oop s = JNIHandles::resolve_non_null(string);
3256 typeArrayOop s_value = java_lang_String::value(s);
3257 if (s_value != NULL) {
3258 int s_len = java_lang_String::length(s);
3259 int s_offset = java_lang_String::offset(s);
3260 buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal); // add one for zero termination
3261 /* JNI Specification states return NULL on OOM */
3262 if (buf != NULL) {
3263 if (s_len > 0) {
3264 memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);
3265 }
3266 buf[s_len] = 0;
3267 //%note jni_5
3268 if (isCopy != NULL) {
3269 *isCopy = JNI_TRUE;
3270 }
3271 }
3272 }
3273 #ifndef USDT2
3274 DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);
3275 #else /* USDT2 */
3276 HOTSPOT_JNI_GETSTRINGCHARS_RETURN(
3277 buf);
3278 #endif /* USDT2 */
3279 return buf;
3280 JNI_END
3281
3282
3283 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))
3284 JNIWrapper("ReleaseStringChars");
3285 #ifndef USDT2
3286 DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);
3287 #else /* USDT2 */
3288 HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(
3289 env, str, (uint16_t *) chars);
3290 #endif /* USDT2 */
3291 //%note jni_6
3292 if (chars != NULL) {
3293 // Since String objects are supposed to be immutable, don't copy any
3294 // new data back. A bad user will have to go after the char array.
3295 FreeHeap((void*) chars);
3296 }
3297 #ifndef USDT2
3298 DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);
3299 #else /* USDT2 */
3300 HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(
3301 );
3302 #endif /* USDT2 */
3303 JNI_END
3304
3305
3306 // UTF Interface
3307
3308 #ifndef USDT2
3309 DT_RETURN_MARK_DECL(NewStringUTF, jstring);
3310 #else /* USDT2 */
3311 DT_RETURN_MARK_DECL(NewStringUTF, jstring
3312 , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));
3313 #endif /* USDT2 */
3314
3315 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))
3316 JNIWrapper("NewStringUTF");
3317 #ifndef USDT2
3318 DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);
3319 #else /* USDT2 */
3320 HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(
3321 env, (char *) bytes);
3322 #endif /* USDT2 */
3323 jstring ret;
3324 DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);
3325
3326 oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);
3327 ret = (jstring) JNIHandles::make_local(env, result);
3328 return ret;
3329 JNI_END
3330
3331
3332 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))
3333 JNIWrapper("GetStringUTFLength");
3334 #ifndef USDT2
3335 DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);
3336 #else /* USDT2 */
3337 HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(
3338 env, string);
3339 #endif /* USDT2 */
3340 jsize ret = 0;
3341 oop java_string = JNIHandles::resolve_non_null(string);
3342 if (java_lang_String::value(java_string) != NULL) {
3343 ret = java_lang_String::utf8_length(java_string);
3344 }
3345 #ifndef USDT2
3346 DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);
3347 #else /* USDT2 */
3348 HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(
3349 ret);
3350 #endif /* USDT2 */
3351 return ret;
3352 JNI_END
3353
3354
3355 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))
3356 JNIWrapper("GetStringUTFChars");
3357 #ifndef USDT2
3358 DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);
3359 #else /* USDT2 */
3360 HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(
3361 env, string, (uintptr_t *) isCopy);
3362 #endif /* USDT2 */
3363 char* result = NULL;
3364 oop java_string = JNIHandles::resolve_non_null(string);
3365 if (java_lang_String::value(java_string) != NULL) {
3366 size_t length = java_lang_String::utf8_length(java_string);
3367 /* JNI Specification states return NULL on OOM */
3368 result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);
3369 if (result != NULL) {
3370 java_lang_String::as_utf8_string(java_string, result, (int) length + 1);
3371 if (isCopy != NULL) {
3372 *isCopy = JNI_TRUE;
3373 }
3374 }
3375 }
3376 #ifndef USDT2
3377 DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);
3378 #else /* USDT2 */
3379 HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(
3380 result);
3381 #endif /* USDT2 */
3382 return result;
3383 JNI_END
3384
3385
3386 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))
3387 JNIWrapper("ReleaseStringUTFChars");
3388 #ifndef USDT2
3389 DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);
3390 #else /* USDT2 */
3391 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(
3392 env, str, (char *) chars);
3393 #endif /* USDT2 */
3394 if (chars != NULL) {
3395 FreeHeap((char*) chars);
3396 }
3397 #ifndef USDT2
3398 DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);
3399 #else /* USDT2 */
3400 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(
3401 );
3402 #endif /* USDT2 */
3403 JNI_END
3404
3405
3406 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))
3407 JNIWrapper("GetArrayLength");
3408 #ifndef USDT2
3409 DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);
3410 #else /* USDT2 */
3411 HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(
3412 env, array);
3413 #endif /* USDT2 */
3414 arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));
3415 assert(a->is_array(), "must be array");
3416 jsize ret = a->length();
3417 #ifndef USDT2
3418 DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);
3419 #else /* USDT2 */
3420 HOTSPOT_JNI_GETARRAYLENGTH_RETURN(
3421 ret);
3422 #endif /* USDT2 */
3423 return ret;
3424 JNI_END
3425
3426
3427 //
3428 // Object Array Operations
3429 //
3430
3431 #ifndef USDT2
3432 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);
3433 #else /* USDT2 */
3434 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray
3435 , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));
3436 #endif /* USDT2 */
3437
3438 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))
3439 JNIWrapper("NewObjectArray");
3440 #ifndef USDT2
3441 DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);
3442 #else /* USDT2 */
3443 HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(
3444 env, length, elementClass, initialElement);
3445 #endif /* USDT2 */
3446 jobjectArray ret = NULL;
3447 DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);
3448 KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));
3449 Klass* ako = ek()->array_klass(CHECK_NULL);
3450 KlassHandle ak = KlassHandle(THREAD, ako);
3451 ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);
3452 objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);
3453 oop initial_value = JNIHandles::resolve(initialElement);
3454 if (initial_value != NULL) { // array already initialized with NULL
3455 for (int index = 0; index < length; index++) {
3456 result->obj_at_put(index, initial_value);
3457 }
3458 }
3459 ret = (jobjectArray) JNIHandles::make_local(env, result);
3460 return ret;
3461 JNI_END
3462
3463 #ifndef USDT2
3464 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);
3465 #else /* USDT2 */
3466 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject
3467 , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));
3468 #endif /* USDT2 */
3469
3470 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))
3471 JNIWrapper("GetObjectArrayElement");
3472 #ifndef USDT2
3473 DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);
3474 #else /* USDT2 */
3475 HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(
3476 env, array, index);
3477 #endif /* USDT2 */
3478 jobject ret = NULL;
3479 DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);
3480 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3481 if (a->is_within_bounds(index)) {
3482 ret = JNIHandles::make_local(env, a->obj_at(index));
3483 return ret;
3484 } else {
3485 char buf[jintAsStringSize];
3486 sprintf(buf, "%d", index);
3487 THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3488 }
3489 JNI_END
3490
3491 #ifndef USDT2
3492 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);
3493 #else /* USDT2 */
3494 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement
3495 , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());
3496 #endif /* USDT2 */
3497
3498 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))
3499 JNIWrapper("SetObjectArrayElement");
3500 #ifndef USDT2
3501 DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);
3502 #else /* USDT2 */
3503 HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(
3504 env, array, index, value);
3505 #endif /* USDT2 */
3506 DT_VOID_RETURN_MARK(SetObjectArrayElement);
3507
3508 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3509 oop v = JNIHandles::resolve(value);
3510 if (a->is_within_bounds(index)) {
3511 if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {
3512 a->obj_at_put(index, v);
3513 } else {
3514 THROW(vmSymbols::java_lang_ArrayStoreException());
3515 }
3516 } else {
3517 char buf[jintAsStringSize];
3518 sprintf(buf, "%d", index);
3519 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3520 }
3521 JNI_END
3522
3523
3524 #ifndef USDT2
3525 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \
3526 \
3527 DT_RETURN_MARK_DECL(New##Result##Array, Return); \
3528 \
3529 JNI_ENTRY(Return, \
3530 jni_New##Result##Array(JNIEnv *env, jsize len)) \
3531 JNIWrapper("New" XSTR(Result) "Array"); \
3532 DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\
3533 Return ret = NULL;\
3534 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3535 \
3536 oop obj= oopFactory::Allocator(len, CHECK_0); \
3537 ret = (Return) JNIHandles::make_local(env, obj); \
3538 return ret;\
3539 JNI_END
3540
3541 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean)
3542 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte)
3543 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short)
3544 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char)
3545 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int)
3546 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long)
3547 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float)
3548 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double)
3549
3550 #else /* USDT2 */
3551
3552 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \
3553 ,EntryProbe,ReturnProbe) \
3554 \
3555 DT_RETURN_MARK_DECL(New##Result##Array, Return \
3556 , ReturnProbe); \
3557 \
3558 JNI_ENTRY(Return, \
3559 jni_New##Result##Array(JNIEnv *env, jsize len)) \
3560 JNIWrapper("New" XSTR(Result) "Array"); \
3561 EntryProbe; \
3562 Return ret = NULL;\
3563 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3564 \
3565 oop obj= oopFactory::Allocator(len, CHECK_0); \
3566 ret = (Return) JNIHandles::make_local(env, obj); \
3567 return ret;\
3568 JNI_END
3569
3570 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean,
3571 HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),
3572 HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))
3573 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte,
3574 HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),
3575 HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))
3576 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short,
3577 HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),
3578 HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))
3579 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char,
3580 HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),
3581 HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))
3582 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int,
3583 HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),
3584 HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))
3585 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long,
3586 HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),
3587 HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))
3588 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float,
3589 HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),
3590 HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))
3591 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double,
3592 HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),
3593 HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))
3594 #endif /* USDT2 */
3595
3596 // Return an address which will fault if the caller writes to it.
3597
3598 static char* get_bad_address() {
3599 static char* bad_address = NULL;
3600 if (bad_address == NULL) {
3601 size_t size = os::vm_allocation_granularity();
3602 bad_address = os::reserve_memory(size);
3603 if (bad_address != NULL) {
3604 os::protect_memory(bad_address, size, os::MEM_PROT_READ,
3605 /*is_committed*/false);
3606 MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);
3607 }
3608 }
3609 return bad_address;
3610 }
3611
3612
3613 #ifndef USDT2
3614 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \
3615 \
3616 JNI_QUICK_ENTRY(ElementType*, \
3617 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3618 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3619 DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\
3620 /* allocate an chunk of memory in c land */ \
3621 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3622 ElementType* result; \
3623 int len = a->length(); \
3624 if (len == 0) { \
3625 /* Empty array: legal but useless, can't return NULL. \
3626 * Return a pointer to something useless. \
3627 * Avoid asserts in typeArrayOop. */ \
3628 result = (ElementType*)get_bad_address(); \
3629 } else { \
3630 /* JNI Specification states return NULL on OOM */ \
3631 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3632 if (result != NULL) { \
3633 /* copy the array to the c chunk */ \
3634 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \
3635 if (isCopy) { \
3636 *isCopy = JNI_TRUE; \
3637 } \
3638 } \
3639 } \
3640 DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\
3641 return result; \
3642 JNI_END
3643
3644 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3645 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte)
3646 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short)
3647 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char)
3648 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int)
3649 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long)
3650 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float)
3651 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double)
3652
3653 #else /* USDT2 */
3654
3655 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \
3656 , EntryProbe, ReturnProbe) \
3657 \
3658 JNI_QUICK_ENTRY(ElementType*, \
3659 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3660 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3661 EntryProbe; \
3662 /* allocate an chunk of memory in c land */ \
3663 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3664 ElementType* result; \
3665 int len = a->length(); \
3666 if (len == 0) { \
3667 /* Empty array: legal but useless, can't return NULL. \
3668 * Return a pointer to something useless. \
3669 * Avoid asserts in typeArrayOop. */ \
3670 result = (ElementType*)get_bad_address(); \
3671 } else { \
3672 /* JNI Specification states return NULL on OOM */ \
3673 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3674 if (result != NULL) { \
3675 /* copy the array to the c chunk */ \
3676 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \
3677 if (isCopy) { \
3678 *isCopy = JNI_TRUE; \
3679 } \
3680 } \
3681 } \
3682 ReturnProbe; \
3683 return result; \
3684 JNI_END
3685
3686 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3687 , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3688 HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))
3689 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte
3690 , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3691 HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))
3692 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short
3693 , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3694 HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))
3695 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char
3696 , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3697 HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))
3698 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int
3699 , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3700 HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))
3701 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long
3702 , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3703 HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))
3704 // Float and double probes don't return value because dtrace doesn't currently support it
3705 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float
3706 , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3707 HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))
3708 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double
3709 , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3710 HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))
3711 #endif /* USDT2 */
3712
3713 #ifndef USDT2
3714 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \
3715 \
3716 JNI_QUICK_ENTRY(void, \
3717 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3718 ElementType *buf, jint mode)) \
3719 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3720 DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\
3721 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3722 int len = a->length(); \
3723 if (len != 0) { /* Empty array: nothing to free or copy. */ \
3724 if ((mode == 0) || (mode == JNI_COMMIT)) { \
3725 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3726 } \
3727 if ((mode == 0) || (mode == JNI_ABORT)) { \
3728 FreeHeap(buf); \
3729 } \
3730 } \
3731 DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\
3732 JNI_END
3733
3734 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3735 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte)
3736 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short)
3737 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char)
3738 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int)
3739 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long)
3740 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float)
3741 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double)
3742
3743 #else /* USDT2 */
3744
3745 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \
3746 , EntryProbe, ReturnProbe);\
3747 \
3748 JNI_QUICK_ENTRY(void, \
3749 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3750 ElementType *buf, jint mode)) \
3751 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3752 EntryProbe; \
3753 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3754 int len = a->length(); \
3755 if (len != 0) { /* Empty array: nothing to free or copy. */ \
3756 if ((mode == 0) || (mode == JNI_COMMIT)) { \
3757 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3758 } \
3759 if ((mode == 0) || (mode == JNI_ABORT)) { \
3760 FreeHeap(buf); \
3761 } \
3762 } \
3763 ReturnProbe; \
3764 JNI_END
3765
3766 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3767 , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3768 HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())
3769 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte
3770 , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),
3771 HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())
3772 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short
3773 , HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3774 HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())
3775 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char
3776 , HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3777 HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())
3778 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int
3779 , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),
3780 HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())
3781 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long
3782 , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3783 HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())
3784 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float
3785 , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),
3786 HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())
3787 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double
3788 , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),
3789 HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())
3790 #endif /* USDT2 */
3791
3792 #ifndef USDT2
3793 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3794 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\
3795 \
3796 JNI_ENTRY(void, \
3797 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3798 jsize len, ElementType *buf)) \
3799 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3800 DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\
3801 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3802 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3803 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \
3804 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3805 } else { \
3806 if (len > 0) { \
3807 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3808 memcpy((u_char*) buf, \
3809 (u_char*) src->Tag##_at_addr(start), \
3810 len << sc); \
3811 } \
3812 } \
3813 JNI_END
3814
3815 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)
3816 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte)
3817 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short)
3818 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char)
3819 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int)
3820 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long)
3821 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float)
3822 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double)
3823
3824 #else /* USDT2 */
3825
3826 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3827 , EntryProbe, ReturnProbe); \
3828 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \
3829 , ReturnProbe); \
3830 \
3831 JNI_ENTRY(void, \
3832 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3833 jsize len, ElementType *buf)) \
3834 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3835 EntryProbe; \
3836 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3837 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3838 if (start < 0 || len < 0 || (start > src->length() - len)) { \
3839 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3840 } else { \
3841 if (len > 0) { \
3842 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3843 memcpy((u_char*) buf, \
3844 (u_char*) src->Tag##_at_addr(start), \
3845 len << sc); \
3846 } \
3847 } \
3848 JNI_END
3849
3850 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool
3851 , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3852 HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());
3853 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte
3854 , HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3855 HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());
3856 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short
3857 , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3858 HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());
3859 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char
3860 , HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),
3861 HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());
3862 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int
3863 , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),
3864 HOTSPOT_JNI_GETINTARRAYREGION_RETURN());
3865 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long
3866 , HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3867 HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());
3868 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float
3869 , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3870 HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());
3871 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double
3872 , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3873 HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());
3874 #endif /* USDT2 */
3875
3876 #ifndef USDT2
3877 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3878 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\
3879 \
3880 JNI_ENTRY(void, \
3881 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3882 jsize len, const ElementType *buf)) \
3883 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3884 DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\
3885 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3886 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3887 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \
3888 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3889 } else { \
3890 if (len > 0) { \
3891 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3892 memcpy((u_char*) dst->Tag##_at_addr(start), \
3893 (u_char*) buf, \
3894 len << sc); \
3895 } \
3896 } \
3897 JNI_END
3898
3899 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)
3900 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte)
3901 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short)
3902 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char)
3903 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int)
3904 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long)
3905 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float)
3906 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double)
3907
3908 #else /* USDT2 */
3909
3910 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3911 , EntryProbe, ReturnProbe); \
3912 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \
3913 ,ReturnProbe); \
3914 \
3915 JNI_ENTRY(void, \
3916 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3917 jsize len, const ElementType *buf)) \
3918 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3919 EntryProbe; \
3920 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3921 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3922 if (start < 0 || len < 0 || (start > dst->length() - len)) { \
3923 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3924 } else { \
3925 if (len > 0) { \
3926 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3927 memcpy((u_char*) dst->Tag##_at_addr(start), \
3928 (u_char*) buf, \
3929 len << sc); \
3930 } \
3931 } \
3932 JNI_END
3933
3934 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool
3935 , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),
3936 HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())
3937 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte
3938 , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3939 HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())
3940 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short
3941 , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3942 HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())
3943 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char
3944 , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3945 HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())
3946 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int
3947 , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),
3948 HOTSPOT_JNI_SETINTARRAYREGION_RETURN())
3949 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long
3950 , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3951 HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())
3952 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float
3953 , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3954 HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())
3955 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double
3956 , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3957 HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())
3958 #endif /* USDT2 */
3959
3960
3961 //
3962 // Interception of natives
3963 //
3964
3965 // The RegisterNatives call being attempted tried to register with a method that
3966 // is not native. Ask JVM TI what prefixes have been specified. Then check
3967 // to see if the native method is now wrapped with the prefixes. See the
3968 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.
3969 static Method* find_prefixed_native(KlassHandle k,
3970 Symbol* name, Symbol* signature, TRAPS) {
3971 #if INCLUDE_JVMTI
3972 ResourceMark rm(THREAD);
3973 Method* method;
3974 int name_len = name->utf8_length();
3975 char* name_str = name->as_utf8();
3976 int prefix_count;
3977 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);
3978 for (int i = 0; i < prefix_count; i++) {
3979 char* prefix = prefixes[i];
3980 int prefix_len = (int)strlen(prefix);
3981
3982 // try adding this prefix to the method name and see if it matches another method name
3983 int trial_len = name_len + prefix_len;
3984 char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);
3985 strcpy(trial_name_str, prefix);
3986 strcat(trial_name_str, name_str);
3987 TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);
3988 if (trial_name == NULL) {
3989 continue; // no such symbol, so this prefix wasn't used, try the next prefix
3990 }
3991 method = k()->lookup_method(trial_name, signature);
3992 if (method == NULL) {
3993 continue; // signature doesn't match, try the next prefix
3994 }
3995 if (method->is_native()) {
3996 method->set_is_prefixed_native();
3997 return method; // wahoo, we found a prefixed version of the method, return it
3998 }
3999 // found as non-native, so prefix is good, add it, probably just need more prefixes
4000 name_len = trial_len;
4001 name_str = trial_name_str;
4002 }
4003 #endif // INCLUDE_JVMTI
4004 return NULL; // not found
4005 }
4006
4007 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {
4008 Method* method = k()->lookup_method(name, signature);
4009 if (method == NULL) {
4010 ResourceMark rm;
4011 stringStream st;
4012 st.print("Method %s name or signature does not match",
4013 Method::name_and_sig_as_C_string(k(), name, signature));
4014 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4015 }
4016 if (!method->is_native()) {
4017 // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)
4018 method = find_prefixed_native(k, name, signature, THREAD);
4019 if (method == NULL) {
4020 ResourceMark rm;
4021 stringStream st;
4022 st.print("Method %s is not declared as native",
4023 Method::name_and_sig_as_C_string(k(), name, signature));
4024 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4025 }
4026 }
4027
4028 if (entry != NULL) {
4029 method->set_native_function(entry,
4030 Method::native_bind_event_is_interesting);
4031 } else {
4032 method->clear_native_function();
4033 }
4034 if (PrintJNIResolving) {
4035 ResourceMark rm(THREAD);
4036 tty->print_cr("[Registering JNI native method %s.%s]",
4037 method->method_holder()->external_name(),
4038 method->name()->as_C_string());
4039 }
4040 return true;
4041 }
4042
4043 #ifndef USDT2
4044 DT_RETURN_MARK_DECL(RegisterNatives, jint);
4045 #else /* USDT2 */
4046 DT_RETURN_MARK_DECL(RegisterNatives, jint
4047 , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));
4048 #endif /* USDT2 */
4049
4050 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,
4051 const JNINativeMethod *methods,
4052 jint nMethods))
4053 JNIWrapper("RegisterNatives");
4054 #ifndef USDT2
4055 DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);
4056 #else /* USDT2 */
4057 HOTSPOT_JNI_REGISTERNATIVES_ENTRY(
4058 env, clazz, (void *) methods, nMethods);
4059 #endif /* USDT2 */
4060 jint ret = 0;
4061 DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);
4062
4063 KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
4064
4065 for (int index = 0; index < nMethods; index++) {
4066 const char* meth_name = methods[index].name;
4067 const char* meth_sig = methods[index].signature;
4068 int meth_name_len = (int)strlen(meth_name);
4069
4070 // The class should have been loaded (we have an instance of the class
4071 // passed in) so the method and signature should already be in the symbol
4072 // table. If they're not there, the method doesn't exist.
4073 TempNewSymbol name = SymbolTable::probe(meth_name, meth_name_len);
4074 TempNewSymbol signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));
4075
4076 if (name == NULL || signature == NULL) {
4077 ResourceMark rm;
4078 stringStream st;
4079 st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);
4080 // Must return negative value on failure
4081 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);
4082 }
4083
4084 bool res = register_native(h_k, name, signature,
4085 (address) methods[index].fnPtr, THREAD);
4086 if (!res) {
4087 ret = -1;
4088 break;
4089 }
4090 }
4091 return ret;
4092 JNI_END
4093
4094
4095 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))
4096 JNIWrapper("UnregisterNatives");
4097 #ifndef USDT2
4098 DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);
4099 #else /* USDT2 */
4100 HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(
4101 env, clazz);
4102 #endif /* USDT2 */
4103 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));
4104 //%note jni_2
4105 if (k->oop_is_instance()) {
4106 for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {
4107 Method* m = InstanceKlass::cast(k)->methods()->at(index);
4108 if (m->is_native()) {
4109 m->clear_native_function();
4110 m->set_signature_handler(NULL);
4111 }
4112 }
4113 }
4114 #ifndef USDT2
4115 DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);
4116 #else /* USDT2 */
4117 HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(
4118 0);
4119 #endif /* USDT2 */
4120 return 0;
4121 JNI_END
4122
4123 //
4124 // Monitor functions
4125 //
4126
4127 #ifndef USDT2
4128 DT_RETURN_MARK_DECL(MonitorEnter, jint);
4129 #else /* USDT2 */
4130 DT_RETURN_MARK_DECL(MonitorEnter, jint
4131 , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));
4132 #endif /* USDT2 */
4133
4134 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))
4135 #ifndef USDT2
4136 DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);
4137 #else /* USDT2 */
4138 HOTSPOT_JNI_MONITORENTER_ENTRY(
4139 env, jobj);
4140 #endif /* USDT2 */
4141 jint ret = JNI_ERR;
4142 DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);
4143
4144 // If the object is null, we can't do anything with it
4145 if (jobj == NULL) {
4146 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4147 }
4148
4149 Handle obj(thread, JNIHandles::resolve_non_null(jobj));
4150 ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));
4151 ret = JNI_OK;
4152 return ret;
4153 JNI_END
4154
4155 #ifndef USDT2
4156 DT_RETURN_MARK_DECL(MonitorExit, jint);
4157 #else /* USDT2 */
4158 DT_RETURN_MARK_DECL(MonitorExit, jint
4159 , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));
4160 #endif /* USDT2 */
4161
4162 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))
4163 #ifndef USDT2
4164 DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);
4165 #else /* USDT2 */
4166 HOTSPOT_JNI_MONITOREXIT_ENTRY(
4167 env, jobj);
4168 #endif /* USDT2 */
4169 jint ret = JNI_ERR;
4170 DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);
4171
4172 // Don't do anything with a null object
4173 if (jobj == NULL) {
4174 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4175 }
4176
4177 Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));
4178 ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));
4179
4180 ret = JNI_OK;
4181 return ret;
4182 JNI_END
4183
4184 //
4185 // Extensions
4186 //
4187
4188 #ifndef USDT2
4189 DT_VOID_RETURN_MARK_DECL(GetStringRegion);
4190 #else /* USDT2 */
4191 DT_VOID_RETURN_MARK_DECL(GetStringRegion
4192 , HOTSPOT_JNI_GETSTRINGREGION_RETURN());
4193 #endif /* USDT2 */
4194
4195 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))
4196 JNIWrapper("GetStringRegion");
4197 #ifndef USDT2
4198 DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);
4199 #else /* USDT2 */
4200 HOTSPOT_JNI_GETSTRINGREGION_ENTRY(
4201 env, string, start, len, buf);
4202 #endif /* USDT2 */
4203 DT_VOID_RETURN_MARK(GetStringRegion);
4204 oop s = JNIHandles::resolve_non_null(string);
4205 int s_len = java_lang_String::length(s);
4206 if (start < 0 || len < 0 || start > s_len - len) {
4207 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4208 } else {
4209 if (len > 0) {
4210 int s_offset = java_lang_String::offset(s);
4211 typeArrayOop s_value = java_lang_String::value(s);
4212 memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);
4213 }
4214 }
4215 JNI_END
4216
4217 #ifndef USDT2
4218 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);
4219 #else /* USDT2 */
4220 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion
4221 , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());
4222 #endif /* USDT2 */
4223
4224 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))
4225 JNIWrapper("GetStringUTFRegion");
4226 #ifndef USDT2
4227 DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);
4228 #else /* USDT2 */
4229 HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(
4230 env, string, start, len, buf);
4231 #endif /* USDT2 */
4232 DT_VOID_RETURN_MARK(GetStringUTFRegion);
4233 oop s = JNIHandles::resolve_non_null(string);
4234 int s_len = java_lang_String::length(s);
4235 if (start < 0 || len < 0 || start > s_len - len) {
4236 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4237 } else {
4238 //%note jni_7
4239 if (len > 0) {
4240 ResourceMark rm(THREAD);
4241 char *utf_region = java_lang_String::as_utf8_string(s, start, len);
4242 int utf_len = (int)strlen(utf_region);
4243 memcpy(buf, utf_region, utf_len);
4244 buf[utf_len] = 0;
4245 } else {
4246 // JDK null-terminates the buffer even in len is zero
4247 if (buf != NULL) {
4248 buf[0] = 0;
4249 }
4250 }
4251 }
4252 JNI_END
4253
4254
4255 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))
4256 JNIWrapper("GetPrimitiveArrayCritical");
4257 #ifndef USDT2
4258 DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);
4259 #else /* USDT2 */
4260 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(
4261 env, array, (uintptr_t *) isCopy);
4262 #endif /* USDT2 */
4263 GC_locker::lock_critical(thread);
4264 if (isCopy != NULL) {
4265 *isCopy = JNI_FALSE;
4266 }
4267 oop a = JNIHandles::resolve_non_null(array);
4268 assert(a->is_array(), "just checking");
4269 BasicType type;
4270 if (a->is_objArray()) {
4271 type = T_OBJECT;
4272 } else {
4273 type = TypeArrayKlass::cast(a->klass())->element_type();
4274 }
4275 void* ret = arrayOop(a)->base(type);
4276 #ifndef USDT2
4277 DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);
4278 #else /* USDT2 */
4279 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(
4280 ret);
4281 #endif /* USDT2 */
4282 return ret;
4283 JNI_END
4284
4285
4286 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))
4287 JNIWrapper("ReleasePrimitiveArrayCritical");
4288 #ifndef USDT2
4289 DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);
4290 #else /* USDT2 */
4291 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(
4292 env, array, carray, mode);
4293 #endif /* USDT2 */
4294 // The array, carray and mode arguments are ignored
4295 GC_locker::unlock_critical(thread);
4296 #ifndef USDT2
4297 DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);
4298 #else /* USDT2 */
4299 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(
4300 );
4301 #endif /* USDT2 */
4302 JNI_END
4303
4304
4305 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))
4306 JNIWrapper("GetStringCritical");
4307 #ifndef USDT2
4308 DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);
4309 #else /* USDT2 */
4310 HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(
4311 env, string, (uintptr_t *) isCopy);
4312 #endif /* USDT2 */
4313 GC_locker::lock_critical(thread);
4314 if (isCopy != NULL) {
4315 *isCopy = JNI_FALSE;
4316 }
4317 oop s = JNIHandles::resolve_non_null(string);
4318 int s_len = java_lang_String::length(s);
4319 typeArrayOop s_value = java_lang_String::value(s);
4320 int s_offset = java_lang_String::offset(s);
4321 const jchar* ret;
4322 if (s_len > 0) {
4323 ret = s_value->char_at_addr(s_offset);
4324 } else {
4325 ret = (jchar*) s_value->base(T_CHAR);
4326 }
4327 #ifndef USDT2
4328 DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);
4329 #else /* USDT2 */
4330 HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(
4331 (uint16_t *) ret);
4332 #endif /* USDT2 */
4333 return ret;
4334 JNI_END
4335
4336
4337 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))
4338 JNIWrapper("ReleaseStringCritical");
4339 #ifndef USDT2
4340 DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);
4341 #else /* USDT2 */
4342 HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(
4343 env, str, (uint16_t *) chars);
4344 #endif /* USDT2 */
4345 // The str and chars arguments are ignored
4346 GC_locker::unlock_critical(thread);
4347 #ifndef USDT2
4348 DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);
4349 #else /* USDT2 */
4350 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(
4351 );
4352 #endif /* USDT2 */
4353 JNI_END
4354
4355
4356 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))
4357 JNIWrapper("jni_NewWeakGlobalRef");
4358 #ifndef USDT2
4359 DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);
4360 #else /* USDT2 */
4361 HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(
4362 env, ref);
4363 #endif /* USDT2 */
4364 Handle ref_handle(thread, JNIHandles::resolve(ref));
4365 jweak ret = JNIHandles::make_weak_global(ref_handle);
4366 #ifndef USDT2
4367 DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);
4368 #else /* USDT2 */
4369 HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(
4370 ret);
4371 #endif /* USDT2 */
4372 return ret;
4373 JNI_END
4374
4375 // Must be JNI_ENTRY (with HandleMark)
4376 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))
4377 JNIWrapper("jni_DeleteWeakGlobalRef");
4378 #ifndef USDT2
4379 DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);
4380 #else /* USDT2 */
4381 HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(
4382 env, ref);
4383 #endif /* USDT2 */
4384 JNIHandles::destroy_weak_global(ref);
4385 #ifndef USDT2
4386 DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);
4387 #else /* USDT2 */
4388 HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(
4389 );
4390 #endif /* USDT2 */
4391 JNI_END
4392
4393
4394 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))
4395 JNIWrapper("jni_ExceptionCheck");
4396 #ifndef USDT2
4397 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);
4398 #else /* USDT2 */
4399 HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(
4400 env);
4401 #endif /* USDT2 */
4402 jni_check_async_exceptions(thread);
4403 jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;
4404 #ifndef USDT2
4405 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);
4406 #else /* USDT2 */
4407 HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(
4408 ret);
4409 #endif /* USDT2 */
4410 return ret;
4411 JNI_END
4412
4413
4414 // Initialization state for three routines below relating to
4415 // java.nio.DirectBuffers
4416 static jint directBufferSupportInitializeStarted = 0;
4417 static volatile jint directBufferSupportInitializeEnded = 0;
4418 static volatile jint directBufferSupportInitializeFailed = 0;
4419 static jclass bufferClass = NULL;
4420 static jclass directBufferClass = NULL;
4421 static jclass directByteBufferClass = NULL;
4422 static jmethodID directByteBufferConstructor = NULL;
4423 static jfieldID directBufferAddressField = NULL;
4424 static jfieldID bufferCapacityField = NULL;
4425
4426 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {
4427 Handle loader; // null (bootstrap) loader
4428 Handle protection_domain; // null protection domain
4429
4430 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
4431 jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
4432
4433 if (TraceClassResolution && result != NULL) {
4434 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
4435 }
4436 return result;
4437 }
4438
4439 // These lookups are done with the NULL (bootstrap) ClassLoader to
4440 // circumvent any security checks that would be done by jni_FindClass.
4441 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))
4442 {
4443 if ((bufferClass = lookupOne(env, "java/nio/Buffer", thread)) == NULL) { return false; }
4444 if ((directBufferClass = lookupOne(env, "sun/nio/ch/DirectBuffer", thread)) == NULL) { return false; }
4445 if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }
4446 return true;
4447 }
4448 JNI_END
4449
4450
4451 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {
4452 if (directBufferSupportInitializeFailed) {
4453 return false;
4454 }
4455
4456 if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {
4457 if (!lookupDirectBufferClasses(env)) {
4458 directBufferSupportInitializeFailed = 1;
4459 return false;
4460 }
4461
4462 // Make global references for these
4463 bufferClass = (jclass) env->NewGlobalRef(bufferClass);
4464 directBufferClass = (jclass) env->NewGlobalRef(directBufferClass);
4465 directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);
4466
4467 // Get needed field and method IDs
4468 directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");
4469 if (env->ExceptionCheck()) {
4470 env->ExceptionClear();
4471 directBufferSupportInitializeFailed = 1;
4472 return false;
4473 }
4474 directBufferAddressField = env->GetFieldID(bufferClass, "address", "J");
4475 if (env->ExceptionCheck()) {
4476 env->ExceptionClear();
4477 directBufferSupportInitializeFailed = 1;
4478 return false;
4479 }
4480 bufferCapacityField = env->GetFieldID(bufferClass, "capacity", "I");
4481 if (env->ExceptionCheck()) {
4482 env->ExceptionClear();
4483 directBufferSupportInitializeFailed = 1;
4484 return false;
4485 }
4486
4487 if ((directByteBufferConstructor == NULL) ||
4488 (directBufferAddressField == NULL) ||
4489 (bufferCapacityField == NULL)) {
4490 directBufferSupportInitializeFailed = 1;
4491 return false;
4492 }
4493
4494 directBufferSupportInitializeEnded = 1;
4495 } else {
4496 while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {
4497 // Set state as yield_all can call os:sleep. On Solaris, yield_all calls
4498 // os::sleep which requires the VM state transition. On other platforms, it
4499 // is not necessary. The following call to change the VM state is purposely
4500 // put inside the loop to avoid potential deadlock when multiple threads
4501 // try to call this method. See 6791815 for more details.
4502 ThreadInVMfromNative tivn(thread);
4503 os::yield_all();
4504 }
4505 }
4506
4507 return !directBufferSupportInitializeFailed;
4508 }
4509
4510 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)
4511 {
4512 // thread_from_jni_environment() will block if VM is gone.
4513 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4514
4515 JNIWrapper("jni_NewDirectByteBuffer");
4516 #ifndef USDT2
4517 DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);
4518 #else /* USDT2 */
4519 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(
4520 env, address, capacity);
4521 #endif /* USDT2 */
4522
4523 if (!directBufferSupportInitializeEnded) {
4524 if (!initializeDirectBufferSupport(env, thread)) {
4525 #ifndef USDT2
4526 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);
4527 #else /* USDT2 */
4528 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4529 NULL);
4530 #endif /* USDT2 */
4531 return NULL;
4532 }
4533 }
4534
4535 // Being paranoid about accidental sign extension on address
4536 jlong addr = (jlong) ((uintptr_t) address);
4537 // NOTE that package-private DirectByteBuffer constructor currently
4538 // takes int capacity
4539 jint cap = (jint) capacity;
4540 jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);
4541 #ifndef USDT2
4542 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);
4543 #else /* USDT2 */
4544 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4545 ret);
4546 #endif /* USDT2 */
4547 return ret;
4548 }
4549
4550 #ifndef USDT2
4551 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);
4552 #else /* USDT2 */
4553 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*
4554 , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));
4555 #endif /* USDT2 */
4556
4557 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)
4558 {
4559 // thread_from_jni_environment() will block if VM is gone.
4560 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4561
4562 JNIWrapper("jni_GetDirectBufferAddress");
4563 #ifndef USDT2
4564 DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);
4565 #else /* USDT2 */
4566 HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(
4567 env, buf);
4568 #endif /* USDT2 */
4569 void* ret = NULL;
4570 DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);
4571
4572 if (!directBufferSupportInitializeEnded) {
4573 if (!initializeDirectBufferSupport(env, thread)) {
4574 return 0;
4575 }
4576 }
4577
4578 if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {
4579 return 0;
4580 }
4581
4582 ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);
4583 return ret;
4584 }
4585
4586 #ifndef USDT2
4587 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);
4588 #else /* USDT2 */
4589 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong
4590 , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));
4591 #endif /* USDT2 */
4592
4593 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)
4594 {
4595 // thread_from_jni_environment() will block if VM is gone.
4596 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4597
4598 JNIWrapper("jni_GetDirectBufferCapacity");
4599 #ifndef USDT2
4600 DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);
4601 #else /* USDT2 */
4602 HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(
4603 env, buf);
4604 #endif /* USDT2 */
4605 jlong ret = -1;
4606 DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);
4607
4608 if (!directBufferSupportInitializeEnded) {
4609 if (!initializeDirectBufferSupport(env, thread)) {
4610 ret = 0;
4611 return ret;
4612 }
4613 }
4614
4615 if (buf == NULL) {
4616 return -1;
4617 }
4618
4619 if (!env->IsInstanceOf(buf, directBufferClass)) {
4620 return -1;
4621 }
4622
4623 // NOTE that capacity is currently an int in the implementation
4624 ret = env->GetIntField(buf, bufferCapacityField);
4625 return ret;
4626 }
4627
4628
4629 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))
4630 JNIWrapper("GetVersion");
4631 #ifndef USDT2
4632 DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);
4633 #else /* USDT2 */
4634 HOTSPOT_JNI_GETVERSION_ENTRY(
4635 env);
4636 #endif /* USDT2 */
4637 #ifndef USDT2
4638 DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);
4639 #else /* USDT2 */
4640 HOTSPOT_JNI_GETVERSION_RETURN(
4641 CurrentVersion);
4642 #endif /* USDT2 */
4643 return CurrentVersion;
4644 JNI_END
4645
4646 extern struct JavaVM_ main_vm;
4647
4648 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))
4649 JNIWrapper("jni_GetJavaVM");
4650 #ifndef USDT2
4651 DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);
4652 #else /* USDT2 */
4653 HOTSPOT_JNI_GETJAVAVM_ENTRY(
4654 env, (void **) vm);
4655 #endif /* USDT2 */
4656 *vm = (JavaVM *)(&main_vm);
4657 #ifndef USDT2
4658 DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);
4659 #else /* USDT2 */
4660 HOTSPOT_JNI_GETJAVAVM_RETURN(
4661 JNI_OK);
4662 #endif /* USDT2 */
4663 return JNI_OK;
4664 JNI_END
4665
4666 // Structure containing all jni functions
4667 struct JNINativeInterface_ jni_NativeInterface = {
4668 NULL,
4669 NULL,
4670 NULL,
4671
4672 NULL,
4673
4674 jni_GetVersion,
4675
4676 jni_DefineClass,
4677 jni_FindClass,
4678
4679 jni_FromReflectedMethod,
4680 jni_FromReflectedField,
4681
4682 jni_ToReflectedMethod,
4683
4684 jni_GetSuperclass,
4685 jni_IsAssignableFrom,
4686
4687 jni_ToReflectedField,
4688
4689 jni_Throw,
4690 jni_ThrowNew,
4691 jni_ExceptionOccurred,
4692 jni_ExceptionDescribe,
4693 jni_ExceptionClear,
4694 jni_FatalError,
4695
4696 jni_PushLocalFrame,
4697 jni_PopLocalFrame,
4698
4699 jni_NewGlobalRef,
4700 jni_DeleteGlobalRef,
4701 jni_DeleteLocalRef,
4702 jni_IsSameObject,
4703
4704 jni_NewLocalRef,
4705 jni_EnsureLocalCapacity,
4706
4707 jni_AllocObject,
4708 jni_NewObject,
4709 jni_NewObjectV,
4710 jni_NewObjectA,
4711
4712 jni_GetObjectClass,
4713 jni_IsInstanceOf,
4714
4715 jni_GetMethodID,
4716
4717 jni_CallObjectMethod,
4718 jni_CallObjectMethodV,
4719 jni_CallObjectMethodA,
4720 jni_CallBooleanMethod,
4721 jni_CallBooleanMethodV,
4722 jni_CallBooleanMethodA,
4723 jni_CallByteMethod,
4724 jni_CallByteMethodV,
4725 jni_CallByteMethodA,
4726 jni_CallCharMethod,
4727 jni_CallCharMethodV,
4728 jni_CallCharMethodA,
4729 jni_CallShortMethod,
4730 jni_CallShortMethodV,
4731 jni_CallShortMethodA,
4732 jni_CallIntMethod,
4733 jni_CallIntMethodV,
4734 jni_CallIntMethodA,
4735 jni_CallLongMethod,
4736 jni_CallLongMethodV,
4737 jni_CallLongMethodA,
4738 jni_CallFloatMethod,
4739 jni_CallFloatMethodV,
4740 jni_CallFloatMethodA,
4741 jni_CallDoubleMethod,
4742 jni_CallDoubleMethodV,
4743 jni_CallDoubleMethodA,
4744 jni_CallVoidMethod,
4745 jni_CallVoidMethodV,
4746 jni_CallVoidMethodA,
4747
4748 jni_CallNonvirtualObjectMethod,
4749 jni_CallNonvirtualObjectMethodV,
4750 jni_CallNonvirtualObjectMethodA,
4751 jni_CallNonvirtualBooleanMethod,
4752 jni_CallNonvirtualBooleanMethodV,
4753 jni_CallNonvirtualBooleanMethodA,
4754 jni_CallNonvirtualByteMethod,
4755 jni_CallNonvirtualByteMethodV,
4756 jni_CallNonvirtualByteMethodA,
4757 jni_CallNonvirtualCharMethod,
4758 jni_CallNonvirtualCharMethodV,
4759 jni_CallNonvirtualCharMethodA,
4760 jni_CallNonvirtualShortMethod,
4761 jni_CallNonvirtualShortMethodV,
4762 jni_CallNonvirtualShortMethodA,
4763 jni_CallNonvirtualIntMethod,
4764 jni_CallNonvirtualIntMethodV,
4765 jni_CallNonvirtualIntMethodA,
4766 jni_CallNonvirtualLongMethod,
4767 jni_CallNonvirtualLongMethodV,
4768 jni_CallNonvirtualLongMethodA,
4769 jni_CallNonvirtualFloatMethod,
4770 jni_CallNonvirtualFloatMethodV,
4771 jni_CallNonvirtualFloatMethodA,
4772 jni_CallNonvirtualDoubleMethod,
4773 jni_CallNonvirtualDoubleMethodV,
4774 jni_CallNonvirtualDoubleMethodA,
4775 jni_CallNonvirtualVoidMethod,
4776 jni_CallNonvirtualVoidMethodV,
4777 jni_CallNonvirtualVoidMethodA,
4778
4779 jni_GetFieldID,
4780
4781 jni_GetObjectField,
4782 jni_GetBooleanField,
4783 jni_GetByteField,
4784 jni_GetCharField,
4785 jni_GetShortField,
4786 jni_GetIntField,
4787 jni_GetLongField,
4788 jni_GetFloatField,
4789 jni_GetDoubleField,
4790
4791 jni_SetObjectField,
4792 jni_SetBooleanField,
4793 jni_SetByteField,
4794 jni_SetCharField,
4795 jni_SetShortField,
4796 jni_SetIntField,
4797 jni_SetLongField,
4798 jni_SetFloatField,
4799 jni_SetDoubleField,
4800
4801 jni_GetStaticMethodID,
4802
4803 jni_CallStaticObjectMethod,
4804 jni_CallStaticObjectMethodV,
4805 jni_CallStaticObjectMethodA,
4806 jni_CallStaticBooleanMethod,
4807 jni_CallStaticBooleanMethodV,
4808 jni_CallStaticBooleanMethodA,
4809 jni_CallStaticByteMethod,
4810 jni_CallStaticByteMethodV,
4811 jni_CallStaticByteMethodA,
4812 jni_CallStaticCharMethod,
4813 jni_CallStaticCharMethodV,
4814 jni_CallStaticCharMethodA,
4815 jni_CallStaticShortMethod,
4816 jni_CallStaticShortMethodV,
4817 jni_CallStaticShortMethodA,
4818 jni_CallStaticIntMethod,
4819 jni_CallStaticIntMethodV,
4820 jni_CallStaticIntMethodA,
4821 jni_CallStaticLongMethod,
4822 jni_CallStaticLongMethodV,
4823 jni_CallStaticLongMethodA,
4824 jni_CallStaticFloatMethod,
4825 jni_CallStaticFloatMethodV,
4826 jni_CallStaticFloatMethodA,
4827 jni_CallStaticDoubleMethod,
4828 jni_CallStaticDoubleMethodV,
4829 jni_CallStaticDoubleMethodA,
4830 jni_CallStaticVoidMethod,
4831 jni_CallStaticVoidMethodV,
4832 jni_CallStaticVoidMethodA,
4833
4834 jni_GetStaticFieldID,
4835
4836 jni_GetStaticObjectField,
4837 jni_GetStaticBooleanField,
4838 jni_GetStaticByteField,
4839 jni_GetStaticCharField,
4840 jni_GetStaticShortField,
4841 jni_GetStaticIntField,
4842 jni_GetStaticLongField,
4843 jni_GetStaticFloatField,
4844 jni_GetStaticDoubleField,
4845
4846 jni_SetStaticObjectField,
4847 jni_SetStaticBooleanField,
4848 jni_SetStaticByteField,
4849 jni_SetStaticCharField,
4850 jni_SetStaticShortField,
4851 jni_SetStaticIntField,
4852 jni_SetStaticLongField,
4853 jni_SetStaticFloatField,
4854 jni_SetStaticDoubleField,
4855
4856 jni_NewString,
4857 jni_GetStringLength,
4858 jni_GetStringChars,
4859 jni_ReleaseStringChars,
4860
4861 jni_NewStringUTF,
4862 jni_GetStringUTFLength,
4863 jni_GetStringUTFChars,
4864 jni_ReleaseStringUTFChars,
4865
4866 jni_GetArrayLength,
4867
4868 jni_NewObjectArray,
4869 jni_GetObjectArrayElement,
4870 jni_SetObjectArrayElement,
4871
4872 jni_NewBooleanArray,
4873 jni_NewByteArray,
4874 jni_NewCharArray,
4875 jni_NewShortArray,
4876 jni_NewIntArray,
4877 jni_NewLongArray,
4878 jni_NewFloatArray,
4879 jni_NewDoubleArray,
4880
4881 jni_GetBooleanArrayElements,
4882 jni_GetByteArrayElements,
4883 jni_GetCharArrayElements,
4884 jni_GetShortArrayElements,
4885 jni_GetIntArrayElements,
4886 jni_GetLongArrayElements,
4887 jni_GetFloatArrayElements,
4888 jni_GetDoubleArrayElements,
4889
4890 jni_ReleaseBooleanArrayElements,
4891 jni_ReleaseByteArrayElements,
4892 jni_ReleaseCharArrayElements,
4893 jni_ReleaseShortArrayElements,
4894 jni_ReleaseIntArrayElements,
4895 jni_ReleaseLongArrayElements,
4896 jni_ReleaseFloatArrayElements,
4897 jni_ReleaseDoubleArrayElements,
4898
4899 jni_GetBooleanArrayRegion,
4900 jni_GetByteArrayRegion,
4901 jni_GetCharArrayRegion,
4902 jni_GetShortArrayRegion,
4903 jni_GetIntArrayRegion,
4904 jni_GetLongArrayRegion,
4905 jni_GetFloatArrayRegion,
4906 jni_GetDoubleArrayRegion,
4907
4908 jni_SetBooleanArrayRegion,
4909 jni_SetByteArrayRegion,
4910 jni_SetCharArrayRegion,
4911 jni_SetShortArrayRegion,
4912 jni_SetIntArrayRegion,
4913 jni_SetLongArrayRegion,
4914 jni_SetFloatArrayRegion,
4915 jni_SetDoubleArrayRegion,
4916
4917 jni_RegisterNatives,
4918 jni_UnregisterNatives,
4919
4920 jni_MonitorEnter,
4921 jni_MonitorExit,
4922
4923 jni_GetJavaVM,
4924
4925 jni_GetStringRegion,
4926 jni_GetStringUTFRegion,
4927
4928 jni_GetPrimitiveArrayCritical,
4929 jni_ReleasePrimitiveArrayCritical,
4930
4931 jni_GetStringCritical,
4932 jni_ReleaseStringCritical,
4933
4934 jni_NewWeakGlobalRef,
4935 jni_DeleteWeakGlobalRef,
4936
4937 jni_ExceptionCheck,
4938
4939 jni_NewDirectByteBuffer,
4940 jni_GetDirectBufferAddress,
4941 jni_GetDirectBufferCapacity,
4942
4943 // New 1_6 features
4944
4945 jni_GetObjectRefType
4946 };
4947
4948
4949 // For jvmti use to modify jni function table.
4950 // Java threads in native contiues to run until it is transitioned
4951 // to VM at safepoint. Before the transition or before it is blocked
4952 // for safepoint it may access jni function table. VM could crash if
4953 // any java thread access the jni function table in the middle of memcpy.
4954 // To avoid this each function pointers are copied automically.
4955 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {
4956 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
4957 intptr_t *a = (intptr_t *) jni_functions();
4958 intptr_t *b = (intptr_t *) new_jni_NativeInterface;
4959 for (uint i=0; i < sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {
4960 Atomic::store_ptr(*b++, a++);
4961 }
4962 }
4963
4964 void quicken_jni_functions() {
4965 // Replace Get<Primitive>Field with fast versions
4966 if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()
4967 && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls
4968 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)
4969 // windows x86 currently needs SEH wrapper and the gain of the fast
4970 // versions currently isn't certain for server vm on uniprocessor.
4971 && os::is_MP()
4972 #endif
4973 ) {
4974 address func;
4975 func = JNI_FastGetField::generate_fast_get_boolean_field();
4976 if (func != (address)-1) {
4977 jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;
4978 }
4979 func = JNI_FastGetField::generate_fast_get_byte_field();
4980 if (func != (address)-1) {
4981 jni_NativeInterface.GetByteField = (GetByteField_t)func;
4982 }
4983 func = JNI_FastGetField::generate_fast_get_char_field();
4984 if (func != (address)-1) {
4985 jni_NativeInterface.GetCharField = (GetCharField_t)func;
4986 }
4987 func = JNI_FastGetField::generate_fast_get_short_field();
4988 if (func != (address)-1) {
4989 jni_NativeInterface.GetShortField = (GetShortField_t)func;
4990 }
4991 func = JNI_FastGetField::generate_fast_get_int_field();
4992 if (func != (address)-1) {
4993 jni_NativeInterface.GetIntField = (GetIntField_t)func;
4994 }
4995 func = JNI_FastGetField::generate_fast_get_long_field();
4996 if (func != (address)-1) {
4997 jni_NativeInterface.GetLongField = (GetLongField_t)func;
4998 }
4999 func = JNI_FastGetField::generate_fast_get_float_field();
5000 if (func != (address)-1) {
5001 jni_NativeInterface.GetFloatField = (GetFloatField_t)func;
5002 }
5003 func = JNI_FastGetField::generate_fast_get_double_field();
5004 if (func != (address)-1) {
5005 jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;
5006 }
5007 }
5008 }
5009
5010 // Returns the function structure
5011 struct JNINativeInterface_* jni_functions() {
5012 #if INCLUDE_JNI_CHECK
5013 if (CheckJNICalls) return jni_functions_check();
5014 #endif // INCLUDE_JNI_CHECK
5015 return &jni_NativeInterface;
5016 }
5017
5018 // Returns the function structure
5019 struct JNINativeInterface_* jni_functions_nocheck() {
5020 return &jni_NativeInterface;
5021 }
5022
5023 static void post_thread_start_event(const JavaThread* jt) {
5024 assert(jt != NULL, "invariant");
5025 EventThreadStart event;
5026 if (event.should_commit()) {
5027 event.set_thread(JFR_THREAD_ID(jt));
5028 event.commit();
5029 }
5030 }
5031
5032 // Invocation API
5033
5034
5035 // Forward declaration
5036 extern const struct JNIInvokeInterface_ jni_InvokeInterface;
5037
5038 // Global invocation API vars
5039 volatile jint vm_created = 0;
5040 // Indicate whether it is safe to recreate VM
5041 volatile jint safe_to_recreate_vm = 1;
5042 struct JavaVM_ main_vm = {&jni_InvokeInterface};
5043
5044
5045 #define JAVASTACKSIZE (400 * 1024) /* Default size of a thread java stack */
5046 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };
5047
5048 #ifndef USDT2
5049 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);
5050 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);
5051 #else /* USDT2 */
5052 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint
5053 , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));
5054 #endif /* USDT2 */
5055
5056 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {
5057 #ifndef USDT2
5058 HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);
5059 #else /* USDT2 */
5060 HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(
5061 args_);
5062 #endif /* USDT2 */
5063 JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;
5064 jint ret = JNI_ERR;
5065 DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);
5066
5067 if (Threads::is_supported_jni_version(args->version)) {
5068 ret = JNI_OK;
5069 }
5070 // 1.1 style no longer supported in hotspot.
5071 // According the JNI spec, we should update args->version on return.
5072 // We also use the structure to communicate with launcher about default
5073 // stack size.
5074 if (args->version == JNI_VERSION_1_1) {
5075 args->version = JNI_VERSION_1_2;
5076 // javaStackSize is int in arguments structure
5077 assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");
5078 args->javaStackSize = (jint)(ThreadStackSize * K);
5079 }
5080 return ret;
5081 }
5082
5083 #ifndef PRODUCT
5084
5085 #include "gc_implementation/shared/gcTimer.hpp"
5086 #include "gc_interface/collectedHeap.hpp"
5087 #if INCLUDE_ALL_GCS
5088 #include "gc_implementation/g1/heapRegionRemSet.hpp"
5089 #endif
5090 #include "memory/guardedMemory.hpp"
5091 #include "utilities/quickSort.hpp"
5092 #include "utilities/ostream.hpp"
5093 #if INCLUDE_VM_STRUCTS
5094 #include "runtime/vmStructs.hpp"
5095 #endif
5096
5097 #define run_unit_test(unit_test_function_call) \
5098 tty->print_cr("Running test: " #unit_test_function_call); \
5099 unit_test_function_call
5100
5101 // Forward declaration
5102 void TestOS_test();
5103 void TestReservedSpace_test();
5104 void TestReserveMemorySpecial_test();
5105 void TestVirtualSpace_test();
5106 void TestMetaspaceAux_test();
5107 void SpaceManager_test_adjust_initial_chunk_size();
5108 void TestMetachunk_test();
5109 void TestVirtualSpaceNode_test();
5110 void TestNewSize_test();
5111 void TestKlass_test();
5112 void Test_linked_list();
5113 void TestResourcehash_test();
5114 void TestChunkedList_test();
5115 #if INCLUDE_ALL_GCS
5116 void TestOldFreeSpaceCalculation_test();
5117 void TestG1BiasedArray_test();
5118 void TestBufferingOopClosure_test();
5119 void TestCodeCacheRemSet_test();
5120 void FreeRegionList_test();
5121 void ChunkManager_test_list_index();
5122 #endif
5123
5124 void execute_internal_vm_tests() {
5125 if (ExecuteInternalVMTests) {
5126 tty->print_cr("Running internal VM tests");
5127 run_unit_test(TestOS_test());
5128 run_unit_test(TestReservedSpace_test());
5129 run_unit_test(TestReserveMemorySpecial_test());
5130 run_unit_test(TestVirtualSpace_test());
5131 run_unit_test(TestMetaspaceAux_test());
5132 run_unit_test(TestMetachunk_test());
5133 run_unit_test(TestVirtualSpaceNode_test());
5134 run_unit_test(GlobalDefinitions::test_globals());
5135 run_unit_test(GlobalDefinitions::test_proper_unit());
5136 run_unit_test(GCTimerAllTest::all());
5137 run_unit_test(arrayOopDesc::test_max_array_length());
5138 run_unit_test(CollectedHeap::test_is_in());
5139 run_unit_test(QuickSort::test_quick_sort());
5140 run_unit_test(GuardedMemory::test_guarded_memory());
5141 run_unit_test(AltHashing::test_alt_hash());
5142 run_unit_test(test_loggc_filename());
5143 run_unit_test(test_snprintf());
5144 run_unit_test(TestNewSize_test());
5145 run_unit_test(TestKlass_test());
5146 run_unit_test(TestResourcehash_test());
5147 run_unit_test(Test_linked_list());
5148 run_unit_test(TestChunkedList_test());
5149 run_unit_test(ObjectMonitor::sanity_checks());
5150 #if INCLUDE_VM_STRUCTS
5151 run_unit_test(VMStructs::test());
5152 #endif
5153 #if INCLUDE_ALL_GCS
5154 run_unit_test(TestOldFreeSpaceCalculation_test());
5155 run_unit_test(TestG1BiasedArray_test());
5156 run_unit_test(HeapRegionRemSet::test_prt());
5157 run_unit_test(SpaceManager_test_adjust_initial_chunk_size());
5158 run_unit_test(ChunkManager_test_list_index());
5159 run_unit_test(TestBufferingOopClosure_test());
5160 run_unit_test(TestCodeCacheRemSet_test());
5161 if (UseG1GC) {
5162 run_unit_test(FreeRegionList_test());
5163 }
5164 #endif
5165 tty->print_cr("All internal VM tests passed");
5166 }
5167 }
5168
5169 #undef run_unit_test
5170
5171 #endif
5172
5173 #ifndef USDT2
5174 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5175 DT_RETURN_MARK_DECL(CreateJavaVM, jint);
5176 #else /* USDT2 */
5177 DT_RETURN_MARK_DECL(CreateJavaVM, jint
5178 , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));
5179 #endif /* USDT2 */
5180
5181 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {
5182 #ifndef USDT2
5183 HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5184 #else /* USDT2 */
5185 HOTSPOT_JNI_CREATEJAVAVM_ENTRY(
5186 (void **) vm, penv, args);
5187 #endif /* USDT2 */
5188
5189 jint result = JNI_ERR;
5190 DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);
5191
5192 // We're about to use Atomic::xchg for synchronization. Some Zero
5193 // platforms use the GCC builtin __sync_lock_test_and_set for this,
5194 // but __sync_lock_test_and_set is not guaranteed to do what we want
5195 // on all architectures. So we check it works before relying on it.
5196 #if defined(ZERO) && defined(ASSERT)
5197 {
5198 jint a = 0xcafebabe;
5199 jint b = Atomic::xchg(0xdeadbeef, &a);
5200 void *c = &a;
5201 void *d = Atomic::xchg_ptr(&b, &c);
5202 assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");
5203 assert(c == &b && d == &a, "Atomic::xchg_ptr() works");
5204 }
5205 #endif // ZERO && ASSERT
5206
5207 // At the moment it's only possible to have one Java VM,
5208 // since some of the runtime state is in global variables.
5209
5210 // We cannot use our mutex locks here, since they only work on
5211 // Threads. We do an atomic compare and exchange to ensure only
5212 // one thread can call this method at a time
5213
5214 // We use Atomic::xchg rather than Atomic::add/dec since on some platforms
5215 // the add/dec implementations are dependent on whether we are running
5216 // on a multiprocessor, and at this stage of initialization the os::is_MP
5217 // function used to determine this will always return false. Atomic::xchg
5218 // does not have this problem.
5219 if (Atomic::xchg(1, &vm_created) == 1) {
5220 return JNI_EEXIST; // already created, or create attempt in progress
5221 }
5222 if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {
5223 return JNI_ERR; // someone tried and failed and retry not allowed.
5224 }
5225
5226 assert(vm_created == 1, "vm_created is true during the creation");
5227
5228 /**
5229 * Certain errors during initialization are recoverable and do not
5230 * prevent this method from being called again at a later time
5231 * (perhaps with different arguments). However, at a certain
5232 * point during initialization if an error occurs we cannot allow
5233 * this function to be called again (or it will crash). In those
5234 * situations, the 'canTryAgain' flag is set to false, which atomically
5235 * sets safe_to_recreate_vm to 1, such that any new call to
5236 * JNI_CreateJavaVM will immediately fail using the above logic.
5237 */
5238 bool can_try_again = true;
5239
5240 result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);
5241 if (result == JNI_OK) {
5242 JavaThread *thread = JavaThread::current();
5243 /* thread is thread_in_vm here */
5244 *vm = (JavaVM *)(&main_vm);
5245 *(JNIEnv**)penv = thread->jni_environment();
5246
5247 // Tracks the time application was running before GC
5248 RuntimeService::record_application_start();
5249
5250 // Notify JVMTI
5251 if (JvmtiExport::should_post_thread_life()) {
5252 JvmtiExport::post_thread_start(thread);
5253 }
5254
5255 post_thread_start_event(thread);
5256
5257 #ifndef PRODUCT
5258 #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED
5259 #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()
5260 #endif
5261
5262 // Check if we should compile all classes on bootclasspath
5263 if (CompileTheWorld) ClassLoader::compile_the_world();
5264 if (ReplayCompiles) ciReplay::replay(thread);
5265
5266 // Some platforms (like Win*) need a wrapper around these test
5267 // functions in order to properly handle error conditions.
5268 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);
5269 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);
5270 #endif
5271
5272 // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.
5273 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5274 } else {
5275 if (can_try_again) {
5276 // reset safe_to_recreate_vm to 1 so that retrial would be possible
5277 safe_to_recreate_vm = 1;
5278 }
5279
5280 // Creation failed. We must reset vm_created
5281 *vm = 0;
5282 *(JNIEnv**)penv = 0;
5283 // reset vm_created last to avoid race condition. Use OrderAccess to
5284 // control both compiler and architectural-based reordering.
5285 OrderAccess::release_store(&vm_created, 0);
5286 }
5287
5288 return result;
5289 }
5290
5291 #ifndef USDT2
5292 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \
5293 JavaVM**, jsize, jsize*);
5294 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);
5295 #endif /* !USDT2 */
5296
5297 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {
5298 // See bug 4367188, the wrapper can sometimes cause VM crashes
5299 // JNIWrapper("GetCreatedJavaVMs");
5300 #ifndef USDT2
5301 HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \
5302 vm_buf, bufLen, numVMs);
5303 #else /* USDT2 */
5304 HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(
5305 (void **) vm_buf, bufLen, (uintptr_t *) numVMs);
5306 #endif /* USDT2 */
5307 if (vm_created) {
5308 if (numVMs != NULL) *numVMs = 1;
5309 if (bufLen > 0) *vm_buf = (JavaVM *)(&main_vm);
5310 } else {
5311 if (numVMs != NULL) *numVMs = 0;
5312 }
5313 #ifndef USDT2
5314 HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);
5315 #else /* USDT2 */
5316 HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(
5317 JNI_OK);
5318 #endif /* USDT2 */
5319 return JNI_OK;
5320 }
5321
5322 extern "C" {
5323
5324 #ifndef USDT2
5325 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);
5326 #else /* USDT2 */
5327 DT_RETURN_MARK_DECL(DestroyJavaVM, jint
5328 , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));
5329 #endif /* USDT2 */
5330
5331 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {
5332 #ifndef USDT2
5333 DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);
5334 #else /* USDT2 */
5335 HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(
5336 vm);
5337 #endif /* USDT2 */
5338 jint res = JNI_ERR;
5339 DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);
5340
5341 if (!vm_created) {
5342 res = JNI_ERR;
5343 return res;
5344 }
5345
5346 JNIWrapper("DestroyJavaVM");
5347 JNIEnv *env;
5348 JavaVMAttachArgs destroyargs;
5349 destroyargs.version = CurrentVersion;
5350 destroyargs.name = (char *)"DestroyJavaVM";
5351 destroyargs.group = NULL;
5352 res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);
5353 if (res != JNI_OK) {
5354 return res;
5355 }
5356
5357 // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.
5358 JavaThread* thread = JavaThread::current();
5359 ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5360 if (Threads::destroy_vm()) {
5361 // Should not change thread state, VM is gone
5362 vm_created = false;
5363 res = JNI_OK;
5364 return res;
5365 } else {
5366 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5367 res = JNI_ERR;
5368 return res;
5369 }
5370 }
5371
5372
5373 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {
5374 JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;
5375
5376 // Check below commented out from JDK1.2fcs as well
5377 /*
5378 if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {
5379 return JNI_EVERSION;
5380 }
5381 */
5382
5383 Thread* t = ThreadLocalStorage::get_thread_slow();
5384 if (t != NULL) {
5385 // If the thread has been attached this operation is a no-op
5386 *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();
5387 return JNI_OK;
5388 }
5389
5390 // Create a thread and mark it as attaching so it will be skipped by the
5391 // ThreadsListEnumerator - see CR 6404306
5392 JavaThread* thread = new JavaThread(true);
5393
5394 // Set correct safepoint info. The thread is going to call into Java when
5395 // initializing the Java level thread object. Hence, the correct state must
5396 // be set in order for the Safepoint code to deal with it correctly.
5397 thread->set_thread_state(_thread_in_vm);
5398 // Must do this before initialize_thread_local_storage
5399 thread->record_stack_base_and_size();
5400
5401 thread->initialize_thread_local_storage();
5402
5403 if (!os::create_attached_thread(thread)) {
5404 delete thread;
5405 return JNI_ERR;
5406 }
5407 // Enable stack overflow checks
5408 thread->create_stack_guard_pages();
5409
5410 thread->initialize_tlab();
5411
5412 thread->cache_global_variables();
5413
5414 // Crucial that we do not have a safepoint check for this thread, since it has
5415 // not been added to the Thread list yet.
5416 { Threads_lock->lock_without_safepoint_check();
5417 // This must be inside this lock in order to get FullGCALot to work properly, i.e., to
5418 // avoid this thread trying to do a GC before it is added to the thread-list
5419 thread->set_active_handles(JNIHandleBlock::allocate_block());
5420 Threads::add(thread, daemon);
5421 Threads_lock->unlock();
5422 }
5423 // Create thread group and name info from attach arguments
5424 oop group = NULL;
5425 char* thread_name = NULL;
5426 if (args != NULL && Threads::is_supported_jni_version(args->version)) {
5427 group = JNIHandles::resolve(args->group);
5428 thread_name = args->name; // may be NULL
5429 }
5430 if (group == NULL) group = Universe::main_thread_group();
5431
5432 // Create Java level thread object and attach it to this thread
5433 bool attach_failed = false;
5434 {
5435 EXCEPTION_MARK;
5436 HandleMark hm(THREAD);
5437 Handle thread_group(THREAD, group);
5438 thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);
5439 if (HAS_PENDING_EXCEPTION) {
5440 CLEAR_PENDING_EXCEPTION;
5441 // cleanup outside the handle mark.
5442 attach_failed = true;
5443 }
5444 }
5445
5446 if (attach_failed) {
5447 // Added missing cleanup
5448 thread->cleanup_failed_attach_current_thread();
5449 return JNI_ERR;
5450 }
5451
5452 // mark the thread as no longer attaching
5453 // this uses a fence to push the change through so we don't have
5454 // to regrab the threads_lock
5455 thread->set_done_attaching_via_jni();
5456
5457 // Set java thread status.
5458 java_lang_Thread::set_thread_status(thread->threadObj(),
5459 java_lang_Thread::RUNNABLE);
5460
5461 // Notify the debugger
5462 if (JvmtiExport::should_post_thread_life()) {
5463 JvmtiExport::post_thread_start(thread);
5464 }
5465
5466 post_thread_start_event(thread);
5467
5468 *(JNIEnv**)penv = thread->jni_environment();
5469
5470 // Now leaving the VM, so change thread_state. This is normally automatically taken care
5471 // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by
5472 // using ThreadStateTransition::transition, we do a callback to the safepoint code if
5473 // needed.
5474
5475 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5476
5477 // Perform any platform dependent FPU setup
5478 os::setup_fpu();
5479
5480 return JNI_OK;
5481 }
5482
5483
5484 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {
5485 #ifndef USDT2
5486 DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);
5487 #else /* USDT2 */
5488 HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(
5489 vm, penv, _args);
5490 #endif /* USDT2 */
5491 if (!vm_created) {
5492 #ifndef USDT2
5493 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);
5494 #else /* USDT2 */
5495 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5496 (uint32_t) JNI_ERR);
5497 #endif /* USDT2 */
5498 return JNI_ERR;
5499 }
5500
5501 JNIWrapper("AttachCurrentThread");
5502 jint ret = attach_current_thread(vm, penv, _args, false);
5503 #ifndef USDT2
5504 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);
5505 #else /* USDT2 */
5506 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5507 ret);
5508 #endif /* USDT2 */
5509 return ret;
5510 }
5511
5512
5513 jint JNICALL jni_DetachCurrentThread(JavaVM *vm) {
5514 #ifndef USDT2
5515 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);
5516 #else /* USDT2 */
5517 HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(
5518 vm);
5519 #endif /* USDT2 */
5520 VM_Exit::block_if_vm_exited();
5521
5522 JNIWrapper("DetachCurrentThread");
5523
5524 // If the thread has been deattacted the operations is a no-op
5525 if (ThreadLocalStorage::thread() == NULL) {
5526 #ifndef USDT2
5527 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5528 #else /* USDT2 */
5529 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5530 JNI_OK);
5531 #endif /* USDT2 */
5532 return JNI_OK;
5533 }
5534
5535 JavaThread* thread = JavaThread::current();
5536 if (thread->has_last_Java_frame()) {
5537 #ifndef USDT2
5538 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);
5539 #else /* USDT2 */
5540 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5541 (uint32_t) JNI_ERR);
5542 #endif /* USDT2 */
5543 // Can't detach a thread that's running java, that can't work.
5544 return JNI_ERR;
5545 }
5546
5547 // Safepoint support. Have to do call-back to safepoint code, if in the
5548 // middel of a safepoint operation
5549 ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5550
5551 // XXX: Note that JavaThread::exit() call below removes the guards on the
5552 // stack pages set up via enable_stack_{red,yellow}_zone() calls
5553 // above in jni_AttachCurrentThread. Unfortunately, while the setting
5554 // of the guards is visible in jni_AttachCurrentThread above,
5555 // the removal of the guards is buried below in JavaThread::exit()
5556 // here. The abstraction should be more symmetrically either exposed
5557 // or hidden (e.g. it could probably be hidden in the same
5558 // (platform-dependent) methods where we do alternate stack
5559 // maintenance work?)
5560 thread->exit(false, JavaThread::jni_detach);
5561 delete thread;
5562
5563 #ifndef USDT2
5564 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5565 #else /* USDT2 */
5566 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5567 JNI_OK);
5568 #endif /* USDT2 */
5569 return JNI_OK;
5570 }
5571
5572 #ifndef USDT2
5573 DT_RETURN_MARK_DECL(GetEnv, jint);
5574 #else /* USDT2 */
5575 DT_RETURN_MARK_DECL(GetEnv, jint
5576 , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));
5577 #endif /* USDT2 */
5578
5579 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {
5580 #ifndef USDT2
5581 DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);
5582 #else /* USDT2 */
5583 HOTSPOT_JNI_GETENV_ENTRY(
5584 vm, penv, version);
5585 #endif /* USDT2 */
5586 jint ret = JNI_ERR;
5587 DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);
5588
5589 if (!vm_created) {
5590 *penv = NULL;
5591 ret = JNI_EDETACHED;
5592 return ret;
5593 }
5594
5595 if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {
5596 return ret;
5597 }
5598
5599 #ifndef JVMPI_VERSION_1
5600 // need these in order to be polite about older agents
5601 #define JVMPI_VERSION_1 ((jint)0x10000001)
5602 #define JVMPI_VERSION_1_1 ((jint)0x10000002)
5603 #define JVMPI_VERSION_1_2 ((jint)0x10000003)
5604 #endif // !JVMPI_VERSION_1
5605
5606 Thread* thread = ThreadLocalStorage::thread();
5607 if (thread != NULL && thread->is_Java_thread()) {
5608 if (Threads::is_supported_jni_version_including_1_1(version)) {
5609 *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();
5610 ret = JNI_OK;
5611 return ret;
5612
5613 } else if (version == JVMPI_VERSION_1 ||
5614 version == JVMPI_VERSION_1_1 ||
5615 version == JVMPI_VERSION_1_2) {
5616 tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");
5617 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5618 ret = JNI_EVERSION;
5619 return ret;
5620 } else if (JvmtiExport::is_jvmdi_version(version)) {
5621 tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");
5622 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5623 ret = JNI_EVERSION;
5624 return ret;
5625 } else {
5626 *penv = NULL;
5627 ret = JNI_EVERSION;
5628 return ret;
5629 }
5630 } else {
5631 *penv = NULL;
5632 ret = JNI_EDETACHED;
5633 return ret;
5634 }
5635 }
5636
5637
5638 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {
5639 #ifndef USDT2
5640 DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);
5641 #else /* USDT2 */
5642 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(
5643 vm, penv, _args);
5644 #endif /* USDT2 */
5645 if (!vm_created) {
5646 #ifndef USDT2
5647 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);
5648 #else /* USDT2 */
5649 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5650 (uint32_t) JNI_ERR);
5651 #endif /* USDT2 */
5652 return JNI_ERR;
5653 }
5654
5655 JNIWrapper("AttachCurrentThreadAsDaemon");
5656 jint ret = attach_current_thread(vm, penv, _args, true);
5657 #ifndef USDT2
5658 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);
5659 #else /* USDT2 */
5660 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5661 ret);
5662 #endif /* USDT2 */
5663 return ret;
5664 }
5665
5666
5667 } // End extern "C"
5668
5669 const struct JNIInvokeInterface_ jni_InvokeInterface = {
5670 NULL,
5671 NULL,
5672 NULL,
5673
5674 jni_DestroyJavaVM,
5675 jni_AttachCurrentThread,
5676 jni_DetachCurrentThread,
5677 jni_GetEnv,
5678 jni_AttachCurrentThreadAsDaemon
5679 };