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 #if INCLUDE_JFR
36 #include "jfr/jfrEvents.hpp"
37 #include "jfr/support/jfrThreadId.hpp"
38 #endif
39 #include "utilities/macros.hpp"
40 #include "utilities/ostream.hpp"
41 #if INCLUDE_ALL_GCS
42 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
43 #endif // INCLUDE_ALL_GCS
44 #include "memory/allocation.hpp"
45 #include "memory/allocation.inline.hpp"
46 #include "memory/gcLocker.inline.hpp"
47 #include "memory/oopFactory.hpp"
48 #include "memory/universe.inline.hpp"
49 #include "oops/instanceKlass.hpp"
50 #include "oops/instanceOop.hpp"
51 #include "oops/markOop.hpp"
52 #include "oops/method.hpp"
53 #include "oops/objArrayKlass.hpp"
54 #include "oops/objArrayOop.hpp"
55 #include "oops/oop.inline.hpp"
56 #include "oops/symbol.hpp"
57 #include "oops/typeArrayKlass.hpp"
58 #include "oops/typeArrayOop.hpp"
59 #include "prims/jni.h"
60 #include "prims/jniCheck.hpp"
61 #include "prims/jniExport.hpp"
62 #include "prims/jniFastGetField.hpp"
63 #include "prims/jvm.h"
64 #include "prims/jvm_misc.hpp"
65 #include "prims/jvmtiExport.hpp"
66 #include "prims/jvmtiThreadState.hpp"
67 #include "runtime/compilationPolicy.hpp"
68 #include "runtime/fieldDescriptor.hpp"
69 #include "runtime/fprofiler.hpp"
70 #include "runtime/handles.inline.hpp"
71 #include "runtime/interfaceSupport.hpp"
72 #include "runtime/java.hpp"
73 #include "runtime/javaCalls.hpp"
74 #include "runtime/jfieldIDWorkaround.hpp"
75 #include "runtime/orderAccess.inline.hpp"
76 #include "runtime/reflection.hpp"
77 #include "runtime/sharedRuntime.hpp"
78 #include "runtime/signature.hpp"
79 #include "runtime/thread.inline.hpp"
80 #include "runtime/vm_operations.hpp"
81 #include "services/memTracker.hpp"
82 #include "services/runtimeService.hpp"
83 #include "utilities/defaultStream.hpp"
84 #include "utilities/dtrace.hpp"
85 #include "utilities/events.hpp"
86 #include "utilities/histogram.hpp"
87 #ifdef TARGET_OS_FAMILY_linux
88 # include "os_linux.inline.hpp"
89 #endif
90 #ifdef TARGET_OS_FAMILY_solaris
91 # include "os_solaris.inline.hpp"
92 #endif
93 #ifdef TARGET_OS_FAMILY_windows
94 # include "os_windows.inline.hpp"
95 #endif
96 #ifdef TARGET_OS_FAMILY_bsd
97 # include "os_bsd.inline.hpp"
98 #endif
99
100 static jint CurrentVersion = JNI_VERSION_1_8;
101
102
103 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace
104 // '-return' probe regardless of the return path is taken out of the function.
105 // Methods that have multiple return paths use this to avoid having to
106 // instrument each return path. Methods that use CHECK or THROW must use this
107 // since those macros can cause an immedate uninstrumented return.
108 //
109 // In order to get the return value, a reference to the variable containing
110 // the return value must be passed to the contructor of the object, and
111 // the return value must be set before return (since the mark object has
112 // a reference to it).
113 //
114 // Example:
115 // DT_RETURN_MARK_DECL(SomeFunc, int);
116 // JNI_ENTRY(int, SomeFunc, ...)
117 // int return_value = 0;
118 // DT_RETURN_MARK(SomeFunc, int, (const int&)return_value);
119 // foo(CHECK_0)
120 // return_value = 5;
121 // return return_value;
122 // JNI_END
123 #ifndef USDT2
124 #define DT_RETURN_MARK_DECL(name, type) \
125 HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type); \
126 DTRACE_ONLY( \
127 class DTraceReturnProbeMark_##name { \
128 public: \
129 const type& _ret_ref; \
130 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \
131 ~DTraceReturnProbeMark_##name() { \
132 HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref); \
133 } \
134 } \
135 )
136 // Void functions are simpler since there's no return value
137 #define DT_VOID_RETURN_MARK_DECL(name) \
138 HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return); \
139 DTRACE_ONLY( \
140 class DTraceReturnProbeMark_##name { \
141 public: \
142 ~DTraceReturnProbeMark_##name() { \
143 HS_DTRACE_PROBE0(hotspot_jni, name##__return); \
144 } \
145 } \
146 )
147
148 #else /* USDT2 */
149
150 #define DT_RETURN_MARK_DECL(name, type, probe) \
151 DTRACE_ONLY( \
152 class DTraceReturnProbeMark_##name { \
153 public: \
154 const type& _ret_ref; \
155 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \
156 ~DTraceReturnProbeMark_##name() { \
157 probe; \
158 } \
159 } \
160 )
161 // Void functions are simpler since there's no return value
162 #define DT_VOID_RETURN_MARK_DECL(name, probe) \
163 DTRACE_ONLY( \
164 class DTraceReturnProbeMark_##name { \
165 public: \
166 ~DTraceReturnProbeMark_##name() { \
167 probe; \
168 } \
169 } \
170 )
171 #endif /* USDT2 */
172
173 // Place these macros in the function to mark the return. Non-void
174 // functions need the type and address of the return value.
175 #define DT_RETURN_MARK(name, type, ref) \
176 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) )
177 #define DT_VOID_RETURN_MARK(name) \
178 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )
179
180
181 // Use these to select distinct code for floating-point vs. non-floating point
182 // situations. Used from within common macros where we need slightly
183 // different behavior for Float/Double
184 #define FP_SELECT_Boolean(intcode, fpcode) intcode
185 #define FP_SELECT_Byte(intcode, fpcode) intcode
186 #define FP_SELECT_Char(intcode, fpcode) intcode
187 #define FP_SELECT_Short(intcode, fpcode) intcode
188 #define FP_SELECT_Object(intcode, fpcode) intcode
189 #define FP_SELECT_Int(intcode, fpcode) intcode
190 #define FP_SELECT_Long(intcode, fpcode) intcode
191 #define FP_SELECT_Float(intcode, fpcode) fpcode
192 #define FP_SELECT_Double(intcode, fpcode) fpcode
193 #define FP_SELECT(TypeName, intcode, fpcode) \
194 FP_SELECT_##TypeName(intcode, fpcode)
195
196 #define COMMA ,
197
198 // Choose DT_RETURN_MARK macros based on the type: float/double -> void
199 // (dtrace doesn't do FP yet)
200 #ifndef USDT2
201 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \
202 FP_SELECT(TypeName, \
203 DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )
204 #else /* USDT2 */
205 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe) \
206 FP_SELECT(TypeName, \
207 DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) )
208 #endif /* USDT2 */
209 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \
210 FP_SELECT(TypeName, \
211 DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) )
212
213
214 // out-of-line helpers for class jfieldIDWorkaround:
215
216 bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) {
217 if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) {
218 uintptr_t as_uint = (uintptr_t) id;
219 intptr_t offset = raw_instance_offset(id);
220 if (is_checked_jfieldID(id)) {
221 if (!klass_hash_ok(k, id)) {
222 return false;
223 }
224 }
225 return InstanceKlass::cast(k)->contains_field_offset(offset);
226 } else {
227 JNIid* result = (JNIid*) id;
228 #ifdef ASSERT
229 return result != NULL && result->is_static_field_id();
230 #else
231 return result != NULL;
232 #endif
233 }
234 }
235
236
237 intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) {
238 if (offset <= small_offset_mask) {
239 Klass* field_klass = k;
240 Klass* super_klass = field_klass->super();
241 // With compressed oops the most super class with nonstatic fields would
242 // be the owner of fields embedded in the header.
243 while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() &&
244 InstanceKlass::cast(super_klass)->contains_field_offset(offset)) {
245 field_klass = super_klass; // super contains the field also
246 super_klass = field_klass->super();
247 }
248 debug_only(No_Safepoint_Verifier nosafepoint;)
249 uintptr_t klass_hash = field_klass->identity_hash();
250 return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place;
251 } else {
252 #if 0
253 #ifndef PRODUCT
254 {
255 ResourceMark rm;
256 warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name());
257 }
258 #endif
259 #endif
260 return 0;
261 }
262 }
263
264 bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) {
265 uintptr_t as_uint = (uintptr_t) id;
266 intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask;
267 do {
268 debug_only(No_Safepoint_Verifier nosafepoint;)
269 // Could use a non-blocking query for identity_hash here...
270 if ((k->identity_hash() & klass_mask) == klass_hash)
271 return true;
272 k = k->super();
273 } while (k != NULL);
274 return false;
275 }
276
277 void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) {
278 guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" );
279 uintptr_t as_uint = (uintptr_t) id;
280 intptr_t offset = raw_instance_offset(id);
281 if (VerifyJNIFields) {
282 if (is_checked_jfieldID(id)) {
283 guarantee(klass_hash_ok(k, id),
284 "Bug in native code: jfieldID class must match object");
285 } else {
286 #if 0
287 #ifndef PRODUCT
288 if (Verbose) {
289 ResourceMark rm;
290 warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name());
291 }
292 #endif
293 #endif
294 }
295 }
296 guarantee(InstanceKlass::cast(k)->contains_field_offset(offset),
297 "Bug in native code: jfieldID offset must address interior of object");
298 }
299
300 // Wrapper to trace JNI functions
301
302 #ifdef ASSERT
303 Histogram* JNIHistogram;
304 static volatile jint JNIHistogram_lock = 0;
305
306 class JNITraceWrapper : public StackObj {
307 public:
308 JNITraceWrapper(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {
309 if (TraceJNICalls) {
310 va_list ap;
311 va_start(ap, format);
312 tty->print("JNI ");
313 tty->vprint_cr(format, ap);
314 va_end(ap);
315 }
316 }
317 };
318
319 class JNIHistogramElement : public HistogramElement {
320 public:
321 JNIHistogramElement(const char* name);
322 };
323
324 JNIHistogramElement::JNIHistogramElement(const char* elementName) {
325 _name = elementName;
326 uintx count = 0;
327
328 while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) {
329 while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) {
330 count +=1;
331 if ( (WarnOnStalledSpinLock > 0)
332 && (count % WarnOnStalledSpinLock == 0)) {
333 warning("JNIHistogram_lock seems to be stalled");
334 }
335 }
336 }
337
338
339 if(JNIHistogram == NULL)
340 JNIHistogram = new Histogram("JNI Call Counts",100);
341
342 JNIHistogram->add_element(this);
343 Atomic::dec(&JNIHistogram_lock);
344 }
345
346 #define JNICountWrapper(arg) \
347 static JNIHistogramElement* e = new JNIHistogramElement(arg); \
348 /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \
349 if (e != NULL) e->increment_count()
350 #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg)
351 #else
352 #define JNIWrapper(arg)
353 #endif
354
355
356 // Implementation of JNI entries
357
358 #ifndef USDT2
359 DT_RETURN_MARK_DECL(DefineClass, jclass);
360 #else /* USDT2 */
361 DT_RETURN_MARK_DECL(DefineClass, jclass
362 , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));
363 #endif /* USDT2 */
364
365 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef,
366 const jbyte *buf, jsize bufLen))
367 JNIWrapper("DefineClass");
368
369 #ifndef USDT2
370 DTRACE_PROBE5(hotspot_jni, DefineClass__entry,
371 env, name, loaderRef, buf, bufLen);
372 #else /* USDT2 */
373 HOTSPOT_JNI_DEFINECLASS_ENTRY(
374 env, (char*) name, loaderRef, (char*) buf, bufLen);
375 #endif /* USDT2 */
376 jclass cls = NULL;
377 DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls);
378
379 TempNewSymbol class_name = NULL;
380 // Since exceptions can be thrown, class initialization can take place
381 // if name is NULL no check for class name in .class stream has to be made.
382 if (name != NULL) {
383 const int str_len = (int)strlen(name);
384 if (str_len > Symbol::max_length()) {
385 // It's impossible to create this class; the name cannot fit
386 // into the constant pool.
387 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
388 }
389 class_name = SymbolTable::new_symbol(name, CHECK_NULL);
390 }
391 ResourceMark rm(THREAD);
392 ClassFileStream st((u1*) buf, bufLen, NULL);
393 Handle class_loader (THREAD, JNIHandles::resolve(loaderRef));
394
395 if (UsePerfData && !class_loader.is_null()) {
396 // check whether the current caller thread holds the lock or not.
397 // If not, increment the corresponding counter
398 if (ObjectSynchronizer::
399 query_lock_ownership((JavaThread*)THREAD, class_loader) !=
400 ObjectSynchronizer::owner_self) {
401 ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc();
402 }
403 }
404 Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader,
405 Handle(), &st, true,
406 CHECK_NULL);
407
408 if (TraceClassResolution && k != NULL) {
409 trace_class_resolution(k);
410 }
411
412 cls = (jclass)JNIHandles::make_local(
413 env, k->java_mirror());
414 return cls;
415 JNI_END
416
417
418
419 static bool first_time_FindClass = true;
420
421 #ifndef USDT2
422 DT_RETURN_MARK_DECL(FindClass, jclass);
423 #else /* USDT2 */
424 DT_RETURN_MARK_DECL(FindClass, jclass
425 , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));
426 #endif /* USDT2 */
427
428 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name))
429 JNIWrapper("FindClass");
430 #ifndef USDT2
431 DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name);
432 #else /* USDT2 */
433 HOTSPOT_JNI_FINDCLASS_ENTRY(
434 env, (char *)name);
435 #endif /* USDT2 */
436
437 jclass result = NULL;
438 DT_RETURN_MARK(FindClass, jclass, (const jclass&)result);
439
440 // Remember if we are the first invocation of jni_FindClass
441 bool first_time = first_time_FindClass;
442 first_time_FindClass = false;
443
444 // Sanity check the name: it cannot be null or larger than the maximum size
445 // name we can fit in the constant pool.
446 if (name == NULL || (int)strlen(name) > Symbol::max_length()) {
447 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
448 }
449
450 //%note jni_3
451 Handle loader;
452 Handle protection_domain;
453 // Find calling class
454 instanceKlassHandle k (THREAD, thread->security_get_caller_class(0));
455 if (k.not_null()) {
456 loader = Handle(THREAD, k->class_loader());
457 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed
458 // in the correct class context.
459 if (loader.is_null() &&
460 k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) {
461 JavaValue result(T_OBJECT);
462 JavaCalls::call_static(&result, k,
463 vmSymbols::getFromClass_name(),
464 vmSymbols::void_class_signature(),
465 thread);
466 if (HAS_PENDING_EXCEPTION) {
467 Handle ex(thread, thread->pending_exception());
468 CLEAR_PENDING_EXCEPTION;
469 THROW_HANDLE_0(ex);
470 }
471 oop mirror = (oop) result.get_jobject();
472 loader = Handle(THREAD,
473 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader());
474 protection_domain = Handle(THREAD,
475 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain());
476 }
477 } else {
478 // We call ClassLoader.getSystemClassLoader to obtain the system class loader.
479 loader = Handle(THREAD, SystemDictionary::java_system_loader());
480 }
481
482 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
483 result = find_class_from_class_loader(env, sym, true, loader,
484 protection_domain, true, thread);
485
486 if (TraceClassResolution && result != NULL) {
487 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
488 }
489
490 // If we were the first invocation of jni_FindClass, we enable compilation again
491 // rather than just allowing invocation counter to overflow and decay.
492 // Controlled by flag DelayCompilationDuringStartup.
493 if (first_time && !CompileTheWorld)
494 CompilationPolicy::completed_vm_startup();
495
496 return result;
497 JNI_END
498
499 #ifndef USDT2
500 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);
501 #else /* USDT2 */
502 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID
503 , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));
504 #endif /* USDT2 */
505
506 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method))
507 JNIWrapper("FromReflectedMethod");
508 #ifndef USDT2
509 DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method);
510 #else /* USDT2 */
511 HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(
512 env, method);
513 #endif /* USDT2 */
514 jmethodID ret = NULL;
515 DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret);
516
517 // method is a handle to a java.lang.reflect.Method object
518 oop reflected = JNIHandles::resolve_non_null(method);
519 oop mirror = NULL;
520 int slot = 0;
521
522 if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) {
523 mirror = java_lang_reflect_Constructor::clazz(reflected);
524 slot = java_lang_reflect_Constructor::slot(reflected);
525 } else {
526 assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
527 mirror = java_lang_reflect_Method::clazz(reflected);
528 slot = java_lang_reflect_Method::slot(reflected);
529 }
530 Klass* k = java_lang_Class::as_Klass(mirror);
531
532 KlassHandle k1(THREAD, k);
533 // Make sure class is initialized before handing id's out to methods
534 k1()->initialize(CHECK_NULL);
535 Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot);
536 ret = m==NULL? NULL : m->jmethod_id(); // return NULL if reflected method deleted
537 return ret;
538 JNI_END
539
540 #ifndef USDT2
541 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);
542 #else /* USDT2 */
543 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID
544 , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));
545 #endif /* USDT2 */
546
547 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field))
548 JNIWrapper("FromReflectedField");
549 #ifndef USDT2
550 DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field);
551 #else /* USDT2 */
552 HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(
553 env, field);
554 #endif /* USDT2 */
555 jfieldID ret = NULL;
556 DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret);
557
558 // field is a handle to a java.lang.reflect.Field object
559 oop reflected = JNIHandles::resolve_non_null(field);
560 oop mirror = java_lang_reflect_Field::clazz(reflected);
561 Klass* k = java_lang_Class::as_Klass(mirror);
562 int slot = java_lang_reflect_Field::slot(reflected);
563 int modifiers = java_lang_reflect_Field::modifiers(reflected);
564
565 KlassHandle k1(THREAD, k);
566 // Make sure class is initialized before handing id's out to fields
567 k1()->initialize(CHECK_NULL);
568
569 // First check if this is a static field
570 if (modifiers & JVM_ACC_STATIC) {
571 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
572 JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset);
573 assert(id != NULL, "corrupt Field object");
574 debug_only(id->set_is_static_field_id();)
575 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
576 ret = jfieldIDWorkaround::to_static_jfieldID(id);
577 return ret;
578 }
579
580 // The slot is the index of the field description in the field-array
581 // The jfieldID is the offset of the field within the object
582 // It may also have hash bits for k, if VerifyJNIFields is turned on.
583 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
584 assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object");
585 ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset);
586 return ret;
587 JNI_END
588
589 #ifndef USDT2
590 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);
591 #else /* USDT2 */
592 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject
593 , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));
594 #endif /* USDT2 */
595
596 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic))
597 JNIWrapper("ToReflectedMethod");
598 #ifndef USDT2
599 DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic);
600 #else /* USDT2 */
601 HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(
602 env, cls, (uintptr_t) method_id, isStatic);
603 #endif /* USDT2 */
604 jobject ret = NULL;
605 DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret);
606
607 methodHandle m (THREAD, Method::resolve_jmethod_id(method_id));
608 assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match");
609 oop reflection_method;
610 if (m->is_initializer()) {
611 reflection_method = Reflection::new_constructor(m, CHECK_NULL);
612 } else {
613 reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL);
614 }
615 ret = JNIHandles::make_local(env, reflection_method);
616 return ret;
617 JNI_END
618
619 #ifndef USDT2
620 DT_RETURN_MARK_DECL(GetSuperclass, jclass);
621 #else /* USDT2 */
622 DT_RETURN_MARK_DECL(GetSuperclass, jclass
623 , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));
624 #endif /* USDT2 */
625
626 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub))
627 JNIWrapper("GetSuperclass");
628 #ifndef USDT2
629 DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub);
630 #else /* USDT2 */
631 HOTSPOT_JNI_GETSUPERCLASS_ENTRY(
632 env, sub);
633 #endif /* USDT2 */
634 jclass obj = NULL;
635 DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj);
636
637 oop mirror = JNIHandles::resolve_non_null(sub);
638 // primitive classes return NULL
639 if (java_lang_Class::is_primitive(mirror)) return NULL;
640
641 // Rules of Class.getSuperClass as implemented by KLass::java_super:
642 // arrays return Object
643 // interfaces return NULL
644 // proper classes return Klass::super()
645 Klass* k = java_lang_Class::as_Klass(mirror);
646 if (k->is_interface()) return NULL;
647
648 // return mirror for superclass
649 Klass* super = k->java_super();
650 // super2 is the value computed by the compiler's getSuperClass intrinsic:
651 debug_only(Klass* super2 = ( k->oop_is_array()
652 ? SystemDictionary::Object_klass()
653 : k->super() ) );
654 assert(super == super2,
655 "java_super computation depends on interface, array, other super");
656 obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror());
657 return obj;
658 JNI_END
659
660 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super))
661 JNIWrapper("IsSubclassOf");
662 #ifndef USDT2
663 DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super);
664 #else /* USDT2 */
665 HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(
666 env, sub, super);
667 #endif /* USDT2 */
668 oop sub_mirror = JNIHandles::resolve_non_null(sub);
669 oop super_mirror = JNIHandles::resolve_non_null(super);
670 if (java_lang_Class::is_primitive(sub_mirror) ||
671 java_lang_Class::is_primitive(super_mirror)) {
672 jboolean ret = (sub_mirror == super_mirror);
673 #ifndef USDT2
674 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
675 #else /* USDT2 */
676 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
677 ret);
678 #endif /* USDT2 */
679 return ret;
680 }
681 Klass* sub_klass = java_lang_Class::as_Klass(sub_mirror);
682 Klass* super_klass = java_lang_Class::as_Klass(super_mirror);
683 assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom");
684 jboolean ret = sub_klass->is_subtype_of(super_klass) ?
685 JNI_TRUE : JNI_FALSE;
686 #ifndef USDT2
687 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
688 #else /* USDT2 */
689 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
690 ret);
691 #endif /* USDT2 */
692 return ret;
693 JNI_END
694
695 #ifndef USDT2
696 DT_RETURN_MARK_DECL(Throw, jint);
697 #else /* USDT2 */
698 DT_RETURN_MARK_DECL(Throw, jint
699 , HOTSPOT_JNI_THROW_RETURN(_ret_ref));
700 #endif /* USDT2 */
701
702 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj))
703 JNIWrapper("Throw");
704 #ifndef USDT2
705 DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj);
706 #else /* USDT2 */
707 HOTSPOT_JNI_THROW_ENTRY(
708 env, obj);
709 #endif /* USDT2 */
710 jint ret = JNI_OK;
711 DT_RETURN_MARK(Throw, jint, (const jint&)ret);
712
713 THROW_OOP_(JNIHandles::resolve(obj), JNI_OK);
714 ShouldNotReachHere();
715 return 0; // Mute compiler.
716 JNI_END
717
718 #ifndef USDT2
719 DT_RETURN_MARK_DECL(ThrowNew, jint);
720 #else /* USDT2 */
721 DT_RETURN_MARK_DECL(ThrowNew, jint
722 , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));
723 #endif /* USDT2 */
724
725 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message))
726 JNIWrapper("ThrowNew");
727 #ifndef USDT2
728 DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message);
729 #else /* USDT2 */
730 HOTSPOT_JNI_THROWNEW_ENTRY(
731 env, clazz, (char *) message);
732 #endif /* USDT2 */
733 jint ret = JNI_OK;
734 DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret);
735
736 InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
737 Symbol* name = k->name();
738 Handle class_loader (THREAD, k->class_loader());
739 Handle protection_domain (THREAD, k->protection_domain());
740 THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK);
741 ShouldNotReachHere();
742 return 0; // Mute compiler.
743 JNI_END
744
745
746 // JNI functions only transform a pending async exception to a synchronous
747 // exception in ExceptionOccurred and ExceptionCheck calls, since
748 // delivering an async exception in other places won't change the native
749 // code's control flow and would be harmful when native code further calls
750 // JNI functions with a pending exception. Async exception is also checked
751 // during the call, so ExceptionOccurred/ExceptionCheck won't return
752 // false but deliver the async exception at the very end during
753 // state transition.
754
755 static void jni_check_async_exceptions(JavaThread *thread) {
756 assert(thread == Thread::current(), "must be itself");
757 thread->check_and_handle_async_exceptions();
758 }
759
760 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env))
761 JNIWrapper("ExceptionOccurred");
762 #ifndef USDT2
763 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);
764 #else /* USDT2 */
765 HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(
766 env);
767 #endif /* USDT2 */
768 jni_check_async_exceptions(thread);
769 oop exception = thread->pending_exception();
770 jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception);
771 #ifndef USDT2
772 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);
773 #else /* USDT2 */
774 HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(
775 ret);
776 #endif /* USDT2 */
777 return ret;
778 JNI_END
779
780
781 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env))
782 JNIWrapper("ExceptionDescribe");
783 #ifndef USDT2
784 DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);
785 #else /* USDT2 */
786 HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(
787 env);
788 #endif /* USDT2 */
789 if (thread->has_pending_exception()) {
790 Handle ex(thread, thread->pending_exception());
791 thread->clear_pending_exception();
792 if (ex->is_a(SystemDictionary::ThreadDeath_klass())) {
793 // Don't print anything if we are being killed.
794 } else {
795 jio_fprintf(defaultStream::error_stream(), "Exception ");
796 if (thread != NULL && thread->threadObj() != NULL) {
797 ResourceMark rm(THREAD);
798 jio_fprintf(defaultStream::error_stream(),
799 "in thread \"%s\" ", thread->get_thread_name());
800 }
801 if (ex->is_a(SystemDictionary::Throwable_klass())) {
802 JavaValue result(T_VOID);
803 JavaCalls::call_virtual(&result,
804 ex,
805 KlassHandle(THREAD,
806 SystemDictionary::Throwable_klass()),
807 vmSymbols::printStackTrace_name(),
808 vmSymbols::void_method_signature(),
809 THREAD);
810 // If an exception is thrown in the call it gets thrown away. Not much
811 // we can do with it. The native code that calls this, does not check
812 // for the exception - hence, it might still be in the thread when DestroyVM gets
813 // called, potentially causing a few asserts to trigger - since no pending exception
814 // is expected.
815 CLEAR_PENDING_EXCEPTION;
816 } else {
817 ResourceMark rm(THREAD);
818 jio_fprintf(defaultStream::error_stream(),
819 ". Uncaught exception of type %s.",
820 ex->klass()->external_name());
821 }
822 }
823 }
824 #ifndef USDT2
825 DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);
826 #else /* USDT2 */
827 HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(
828 );
829 #endif /* USDT2 */
830 JNI_END
831
832
833 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env))
834 JNIWrapper("ExceptionClear");
835 #ifndef USDT2
836 DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);
837 #else /* USDT2 */
838 HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(
839 env);
840 #endif /* USDT2 */
841
842 // The jni code might be using this API to clear java thrown exception.
843 // So just mark jvmti thread exception state as exception caught.
844 JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state();
845 if (state != NULL && state->is_exception_detected()) {
846 state->set_exception_caught();
847 }
848 thread->clear_pending_exception();
849 #ifndef USDT2
850 DTRACE_PROBE(hotspot_jni, ExceptionClear__return);
851 #else /* USDT2 */
852 HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(
853 );
854 #endif /* USDT2 */
855 JNI_END
856
857
858 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg))
859 JNIWrapper("FatalError");
860 #ifndef USDT2
861 DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg);
862 #else /* USDT2 */
863 HOTSPOT_JNI_FATALERROR_ENTRY(
864 env, (char *) msg);
865 #endif /* USDT2 */
866 tty->print_cr("FATAL ERROR in native method: %s", msg);
867 thread->print_stack();
868 os::abort(); // Dump core and abort
869 JNI_END
870
871
872 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity))
873 JNIWrapper("PushLocalFrame");
874 #ifndef USDT2
875 DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity);
876 #else /* USDT2 */
877 HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(
878 env, capacity);
879 #endif /* USDT2 */
880 //%note jni_11
881 if (capacity < 0 ||
882 ((MaxJNILocalCapacity > 0) && (capacity > MaxJNILocalCapacity))) {
883 #ifndef USDT2
884 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);
885 #else /* USDT2 */
886 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
887 (uint32_t)JNI_ERR);
888 #endif /* USDT2 */
889 return JNI_ERR;
890 }
891 JNIHandleBlock* old_handles = thread->active_handles();
892 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
893 assert(new_handles != NULL, "should not be NULL");
894 new_handles->set_pop_frame_link(old_handles);
895 thread->set_active_handles(new_handles);
896 jint ret = JNI_OK;
897 #ifndef USDT2
898 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);
899 #else /* USDT2 */
900 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
901 ret);
902 #endif /* USDT2 */
903 return ret;
904 JNI_END
905
906
907 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result))
908 JNIWrapper("PopLocalFrame");
909 #ifndef USDT2
910 DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result);
911 #else /* USDT2 */
912 HOTSPOT_JNI_POPLOCALFRAME_ENTRY(
913 env, result);
914 #endif /* USDT2 */
915 //%note jni_11
916 Handle result_handle(thread, JNIHandles::resolve(result));
917 JNIHandleBlock* old_handles = thread->active_handles();
918 JNIHandleBlock* new_handles = old_handles->pop_frame_link();
919 if (new_handles != NULL) {
920 // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL.
921 // This way code will still work if PopLocalFrame is called without a corresponding
922 // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise
923 // the release_block call will release the blocks.
924 thread->set_active_handles(new_handles);
925 old_handles->set_pop_frame_link(NULL); // clear link we won't release new_handles below
926 JNIHandleBlock::release_block(old_handles, thread); // may block
927 result = JNIHandles::make_local(thread, result_handle());
928 }
929 #ifndef USDT2
930 DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);
931 #else /* USDT2 */
932 HOTSPOT_JNI_POPLOCALFRAME_RETURN(
933 result);
934 #endif /* USDT2 */
935 return result;
936 JNI_END
937
938
939 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref))
940 JNIWrapper("NewGlobalRef");
941 #ifndef USDT2
942 DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref);
943 #else /* USDT2 */
944 HOTSPOT_JNI_NEWGLOBALREF_ENTRY(
945 env, ref);
946 #endif /* USDT2 */
947 Handle ref_handle(thread, JNIHandles::resolve(ref));
948 jobject ret = JNIHandles::make_global(ref_handle);
949 #ifndef USDT2
950 DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);
951 #else /* USDT2 */
952 HOTSPOT_JNI_NEWGLOBALREF_RETURN(
953 ret);
954 #endif /* USDT2 */
955 return ret;
956 JNI_END
957
958 // Must be JNI_ENTRY (with HandleMark)
959 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref))
960 JNIWrapper("DeleteGlobalRef");
961 #ifndef USDT2
962 DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref);
963 #else /* USDT2 */
964 HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(
965 env, ref);
966 #endif /* USDT2 */
967 JNIHandles::destroy_global(ref);
968 #ifndef USDT2
969 DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);
970 #else /* USDT2 */
971 HOTSPOT_JNI_DELETEGLOBALREF_RETURN(
972 );
973 #endif /* USDT2 */
974 JNI_END
975
976 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj))
977 JNIWrapper("DeleteLocalRef");
978 #ifndef USDT2
979 DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj);
980 #else /* USDT2 */
981 HOTSPOT_JNI_DELETELOCALREF_ENTRY(
982 env, obj);
983 #endif /* USDT2 */
984 JNIHandles::destroy_local(obj);
985 #ifndef USDT2
986 DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);
987 #else /* USDT2 */
988 HOTSPOT_JNI_DELETELOCALREF_RETURN(
989 );
990 #endif /* USDT2 */
991 JNI_END
992
993 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2))
994 JNIWrapper("IsSameObject");
995 #ifndef USDT2
996 DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2);
997 #else /* USDT2 */
998 HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(
999 env, r1, r2);
1000 #endif /* USDT2 */
1001 oop a = JNIHandles::resolve(r1);
1002 oop b = JNIHandles::resolve(r2);
1003 jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;
1004 #ifndef USDT2
1005 DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);
1006 #else /* USDT2 */
1007 HOTSPOT_JNI_ISSAMEOBJECT_RETURN(
1008 ret);
1009 #endif /* USDT2 */
1010 return ret;
1011 JNI_END
1012
1013
1014 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))
1015 JNIWrapper("NewLocalRef");
1016 #ifndef USDT2
1017 DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);
1018 #else /* USDT2 */
1019 HOTSPOT_JNI_NEWLOCALREF_ENTRY(
1020 env, ref);
1021 #endif /* USDT2 */
1022 jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));
1023 #ifndef USDT2
1024 DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);
1025 #else /* USDT2 */
1026 HOTSPOT_JNI_NEWLOCALREF_RETURN(
1027 ret);
1028 #endif /* USDT2 */
1029 return ret;
1030 JNI_END
1031
1032 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))
1033 JNIWrapper("EnsureLocalCapacity");
1034 #ifndef USDT2
1035 DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);
1036 #else /* USDT2 */
1037 HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(
1038 env, capacity);
1039 #endif /* USDT2 */
1040 jint ret;
1041 if (capacity >= 0 &&
1042 ((MaxJNILocalCapacity <= 0) || (capacity <= MaxJNILocalCapacity))) {
1043 ret = JNI_OK;
1044 } else {
1045 ret = JNI_ERR;
1046 }
1047 #ifndef USDT2
1048 DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);
1049 #else /* USDT2 */
1050 HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(
1051 ret);
1052 #endif /* USDT2 */
1053 return ret;
1054 JNI_END
1055
1056 // Return the Handle Type
1057 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))
1058 JNIWrapper("GetObjectRefType");
1059 #ifndef USDT2
1060 DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);
1061 #else /* USDT2 */
1062 HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(
1063 env, obj);
1064 #endif /* USDT2 */
1065 jobjectRefType ret;
1066 if (JNIHandles::is_local_handle(thread, obj) ||
1067 JNIHandles::is_frame_handle(thread, obj))
1068 ret = JNILocalRefType;
1069 else if (JNIHandles::is_global_handle(obj))
1070 ret = JNIGlobalRefType;
1071 else if (JNIHandles::is_weak_global_handle(obj))
1072 ret = JNIWeakGlobalRefType;
1073 else
1074 ret = JNIInvalidRefType;
1075 #ifndef USDT2
1076 DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);
1077 #else /* USDT2 */
1078 HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(
1079 (void *) ret);
1080 #endif /* USDT2 */
1081 return ret;
1082 JNI_END
1083
1084
1085 class JNI_ArgumentPusher : public SignatureIterator {
1086 protected:
1087 JavaCallArguments* _arguments;
1088
1089 virtual void get_bool () = 0;
1090 virtual void get_char () = 0;
1091 virtual void get_short () = 0;
1092 virtual void get_byte () = 0;
1093 virtual void get_int () = 0;
1094 virtual void get_long () = 0;
1095 virtual void get_float () = 0;
1096 virtual void get_double () = 0;
1097 virtual void get_object () = 0;
1098
1099 JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {
1100 this->_return_type = T_ILLEGAL;
1101 _arguments = NULL;
1102 }
1103
1104 public:
1105 virtual void iterate( uint64_t fingerprint ) = 0;
1106
1107 void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }
1108
1109 inline void do_bool() { if (!is_return_type()) get_bool(); }
1110 inline void do_char() { if (!is_return_type()) get_char(); }
1111 inline void do_short() { if (!is_return_type()) get_short(); }
1112 inline void do_byte() { if (!is_return_type()) get_byte(); }
1113 inline void do_int() { if (!is_return_type()) get_int(); }
1114 inline void do_long() { if (!is_return_type()) get_long(); }
1115 inline void do_float() { if (!is_return_type()) get_float(); }
1116 inline void do_double() { if (!is_return_type()) get_double(); }
1117 inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }
1118 inline void do_array(int begin, int end) { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array
1119 inline void do_void() { }
1120
1121 JavaCallArguments* arguments() { return _arguments; }
1122 void push_receiver(Handle h) { _arguments->push_oop(h); }
1123 };
1124
1125
1126 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {
1127 protected:
1128 va_list _ap;
1129
1130 inline void get_bool() {
1131 // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and
1132 // 0 to JNI_FALSE. Boolean return values from native are normalized the same in
1133 // TemplateInterpreterGenerator::generate_result_handler_for and
1134 // SharedRuntime::generate_native_wrapper.
1135 jboolean b = va_arg(_ap, jint);
1136 _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));
1137 }
1138 inline void get_char() { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg
1139 inline void get_short() { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg
1140 inline void get_byte() { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg
1141 inline void get_int() { _arguments->push_int(va_arg(_ap, jint)); }
1142
1143 // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests
1144
1145 inline void get_long() { _arguments->push_long(va_arg(_ap, jlong)); }
1146 inline void get_float() { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg
1147 inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }
1148 inline void get_object() { _arguments->push_jobject(va_arg(_ap, jobject)); }
1149
1150 inline void set_ap(va_list rap) {
1151 #ifdef va_copy
1152 va_copy(_ap, rap);
1153 #elif defined (__va_copy)
1154 __va_copy(_ap, rap);
1155 #else
1156 _ap = rap;
1157 #endif
1158 }
1159
1160 public:
1161 JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)
1162 : JNI_ArgumentPusher(signature) {
1163 set_ap(rap);
1164 }
1165 JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)
1166 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1167 set_ap(rap);
1168 }
1169
1170 // Optimized path if we have the bitvector form of signature
1171 void iterate( uint64_t fingerprint ) {
1172 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments
1173 else {
1174 _return_type = (BasicType)((fingerprint >> static_feature_size) &
1175 result_feature_mask);
1176
1177 assert(fingerprint, "Fingerprint should not be 0");
1178 fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1179 while ( 1 ) {
1180 switch ( fingerprint & parameter_feature_mask ) {
1181 case bool_parm:
1182 get_bool();
1183 break;
1184 case char_parm:
1185 get_char();
1186 break;
1187 case short_parm:
1188 get_short();
1189 break;
1190 case byte_parm:
1191 get_byte();
1192 break;
1193 case int_parm:
1194 get_int();
1195 break;
1196 case obj_parm:
1197 get_object();
1198 break;
1199 case long_parm:
1200 get_long();
1201 break;
1202 case float_parm:
1203 get_float();
1204 break;
1205 case double_parm:
1206 get_double();
1207 break;
1208 case done_parm:
1209 return;
1210 break;
1211 default:
1212 ShouldNotReachHere();
1213 break;
1214 }
1215 fingerprint >>= parameter_feature_size;
1216 }
1217 }
1218 }
1219 };
1220
1221
1222 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {
1223 protected:
1224 const jvalue *_ap;
1225
1226 inline void get_bool() {
1227 // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and
1228 // 0 to JNI_FALSE. Boolean return values from native are normalized the same in
1229 // TemplateInterpreterGenerator::generate_result_handler_for and
1230 // SharedRuntime::generate_native_wrapper.
1231 jboolean b = (_ap++)->z;
1232 _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));
1233 }
1234 inline void get_char() { _arguments->push_int((jint)(_ap++)->c); }
1235 inline void get_short() { _arguments->push_int((jint)(_ap++)->s); }
1236 inline void get_byte() { _arguments->push_int((jint)(_ap++)->b); }
1237 inline void get_int() { _arguments->push_int((jint)(_ap++)->i); }
1238
1239 inline void get_long() { _arguments->push_long((_ap++)->j); }
1240 inline void get_float() { _arguments->push_float((_ap++)->f); }
1241 inline void get_double() { _arguments->push_double((_ap++)->d);}
1242 inline void get_object() { _arguments->push_jobject((_ap++)->l); }
1243
1244 inline void set_ap(const jvalue *rap) { _ap = rap; }
1245
1246 public:
1247 JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)
1248 : JNI_ArgumentPusher(signature) {
1249 set_ap(rap);
1250 }
1251 JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)
1252 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1253 set_ap(rap);
1254 }
1255
1256 // Optimized path if we have the bitvector form of signature
1257 void iterate( uint64_t fingerprint ) {
1258 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments
1259 else {
1260 _return_type = (BasicType)((fingerprint >> static_feature_size) &
1261 result_feature_mask);
1262 assert(fingerprint, "Fingerprint should not be 0");
1263 fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1264 while ( 1 ) {
1265 switch ( fingerprint & parameter_feature_mask ) {
1266 case bool_parm:
1267 get_bool();
1268 break;
1269 case char_parm:
1270 get_char();
1271 break;
1272 case short_parm:
1273 get_short();
1274 break;
1275 case byte_parm:
1276 get_byte();
1277 break;
1278 case int_parm:
1279 get_int();
1280 break;
1281 case obj_parm:
1282 get_object();
1283 break;
1284 case long_parm:
1285 get_long();
1286 break;
1287 case float_parm:
1288 get_float();
1289 break;
1290 case double_parm:
1291 get_double();
1292 break;
1293 case done_parm:
1294 return;
1295 break;
1296 default:
1297 ShouldNotReachHere();
1298 break;
1299 }
1300 fingerprint >>= parameter_feature_size;
1301 }
1302 }
1303 }
1304 };
1305
1306
1307 enum JNICallType {
1308 JNI_STATIC,
1309 JNI_VIRTUAL,
1310 JNI_NONVIRTUAL
1311 };
1312
1313
1314
1315 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1316 methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));
1317
1318 // Create object to hold arguments for the JavaCall, and associate it with
1319 // the jni parser
1320 ResourceMark rm(THREAD);
1321 int number_of_parameters = method->size_of_parameters();
1322 JavaCallArguments java_args(number_of_parameters);
1323 args->set_java_argument_object(&java_args);
1324
1325 assert(method->is_static(), "method should be static");
1326
1327 // Fill out JavaCallArguments object
1328 args->iterate( Fingerprinter(method).fingerprint() );
1329 // Initialize result type
1330 result->set_type(args->get_ret_type());
1331
1332 // Invoke the method. Result is returned as oop.
1333 JavaCalls::call(result, method, &java_args, CHECK);
1334
1335 // Convert result
1336 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1337 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1338 }
1339 }
1340
1341
1342 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1343 oop recv = JNIHandles::resolve(receiver);
1344 if (recv == NULL) {
1345 THROW(vmSymbols::java_lang_NullPointerException());
1346 }
1347 Handle h_recv(THREAD, recv);
1348
1349 int number_of_parameters;
1350 Method* selected_method;
1351 {
1352 Method* m = Method::resolve_jmethod_id(method_id);
1353 number_of_parameters = m->size_of_parameters();
1354 Klass* holder = m->method_holder();
1355 if (call_type != JNI_VIRTUAL) {
1356 selected_method = m;
1357 } else if (!m->has_itable_index()) {
1358 // non-interface call -- for that little speed boost, don't handlize
1359 debug_only(No_Safepoint_Verifier nosafepoint;)
1360 // jni_GetMethodID makes sure class is linked and initialized
1361 // so m should have a valid vtable index.
1362 assert(m->valid_vtable_index(), "no valid vtable index");
1363 int vtbl_index = m->vtable_index();
1364 if (vtbl_index != Method::nonvirtual_vtable_index) {
1365 Klass* k = h_recv->klass();
1366 // k might be an arrayKlassOop but all vtables start at
1367 // the same place. The cast is to avoid virtual call and assertion.
1368 InstanceKlass *ik = (InstanceKlass*)k;
1369 selected_method = ik->method_at_vtable(vtbl_index);
1370 } else {
1371 // final method
1372 selected_method = m;
1373 }
1374 } else {
1375 // interface call
1376 KlassHandle h_holder(THREAD, holder);
1377
1378 int itbl_index = m->itable_index();
1379 Klass* k = h_recv->klass();
1380 selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);
1381 }
1382 }
1383
1384 methodHandle method(THREAD, selected_method);
1385
1386 // Create object to hold arguments for the JavaCall, and associate it with
1387 // the jni parser
1388 ResourceMark rm(THREAD);
1389 JavaCallArguments java_args(number_of_parameters);
1390 args->set_java_argument_object(&java_args);
1391
1392 // handle arguments
1393 assert(!method->is_static(), "method should not be static");
1394 args->push_receiver(h_recv); // Push jobject handle
1395
1396 // Fill out JavaCallArguments object
1397 args->iterate( Fingerprinter(method).fingerprint() );
1398 // Initialize result type
1399 result->set_type(args->get_ret_type());
1400
1401 // Invoke the method. Result is returned as oop.
1402 JavaCalls::call(result, method, &java_args, CHECK);
1403
1404 // Convert result
1405 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1406 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1407 }
1408 }
1409
1410
1411 static instanceOop alloc_object(jclass clazz, TRAPS) {
1412 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1413 k()->check_valid_for_instantiation(false, CHECK_NULL);
1414 InstanceKlass::cast(k())->initialize(CHECK_NULL);
1415 instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);
1416 return ih;
1417 }
1418
1419 #ifndef USDT2
1420 DT_RETURN_MARK_DECL(AllocObject, jobject);
1421 #else /* USDT2 */
1422 DT_RETURN_MARK_DECL(AllocObject, jobject
1423 , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));
1424 #endif /* USDT2 */
1425
1426 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))
1427 JNIWrapper("AllocObject");
1428
1429 #ifndef USDT2
1430 DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);
1431 #else /* USDT2 */
1432 HOTSPOT_JNI_ALLOCOBJECT_ENTRY(
1433 env, clazz);
1434 #endif /* USDT2 */
1435 jobject ret = NULL;
1436 DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);
1437
1438 instanceOop i = alloc_object(clazz, CHECK_NULL);
1439 ret = JNIHandles::make_local(env, i);
1440 return ret;
1441 JNI_END
1442
1443 #ifndef USDT2
1444 DT_RETURN_MARK_DECL(NewObjectA, jobject);
1445 #else /* USDT2 */
1446 DT_RETURN_MARK_DECL(NewObjectA, jobject
1447 , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));
1448 #endif /* USDT2 */
1449
1450 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))
1451 JNIWrapper("NewObjectA");
1452 #ifndef USDT2
1453 DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);
1454 #else /* USDT2 */
1455 HOTSPOT_JNI_NEWOBJECTA_ENTRY(
1456 env, clazz, (uintptr_t) methodID);
1457 #endif /* USDT2 */
1458 jobject obj = NULL;
1459 DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);
1460
1461 instanceOop i = alloc_object(clazz, CHECK_NULL);
1462 obj = JNIHandles::make_local(env, i);
1463 JavaValue jvalue(T_VOID);
1464 JNI_ArgumentPusherArray ap(methodID, args);
1465 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1466 return obj;
1467 JNI_END
1468
1469 #ifndef USDT2
1470 DT_RETURN_MARK_DECL(NewObjectV, jobject);
1471 #else /* USDT2 */
1472 DT_RETURN_MARK_DECL(NewObjectV, jobject
1473 , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));
1474 #endif /* USDT2 */
1475
1476 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))
1477 JNIWrapper("NewObjectV");
1478 #ifndef USDT2
1479 DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);
1480 #else /* USDT2 */
1481 HOTSPOT_JNI_NEWOBJECTV_ENTRY(
1482 env, clazz, (uintptr_t) methodID);
1483 #endif /* USDT2 */
1484 jobject obj = NULL;
1485 DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);
1486
1487 instanceOop i = alloc_object(clazz, CHECK_NULL);
1488 obj = JNIHandles::make_local(env, i);
1489 JavaValue jvalue(T_VOID);
1490 JNI_ArgumentPusherVaArg ap(methodID, args);
1491 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1492 return obj;
1493 JNI_END
1494
1495 #ifndef USDT2
1496 DT_RETURN_MARK_DECL(NewObject, jobject);
1497 #else /* USDT2 */
1498 DT_RETURN_MARK_DECL(NewObject, jobject
1499 , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));
1500 #endif /* USDT2 */
1501
1502 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))
1503 JNIWrapper("NewObject");
1504 #ifndef USDT2
1505 DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);
1506 #else /* USDT2 */
1507 HOTSPOT_JNI_NEWOBJECT_ENTRY(
1508 env, clazz, (uintptr_t) methodID);
1509 #endif /* USDT2 */
1510 jobject obj = NULL;
1511 DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);
1512
1513 instanceOop i = alloc_object(clazz, CHECK_NULL);
1514 obj = JNIHandles::make_local(env, i);
1515 va_list args;
1516 va_start(args, methodID);
1517 JavaValue jvalue(T_VOID);
1518 JNI_ArgumentPusherVaArg ap(methodID, args);
1519 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1520 va_end(args);
1521 return obj;
1522 JNI_END
1523
1524
1525 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))
1526 JNIWrapper("GetObjectClass");
1527 #ifndef USDT2
1528 DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);
1529 #else /* USDT2 */
1530 HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(
1531 env, obj);
1532 #endif /* USDT2 */
1533 Klass* k = JNIHandles::resolve_non_null(obj)->klass();
1534 jclass ret =
1535 (jclass) JNIHandles::make_local(env, k->java_mirror());
1536 #ifndef USDT2
1537 DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);
1538 #else /* USDT2 */
1539 HOTSPOT_JNI_GETOBJECTCLASS_RETURN(
1540 ret);
1541 #endif /* USDT2 */
1542 return ret;
1543 JNI_END
1544
1545 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))
1546 JNIWrapper("IsInstanceOf");
1547 #ifndef USDT2
1548 DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);
1549 #else /* USDT2 */
1550 HOTSPOT_JNI_ISINSTANCEOF_ENTRY(
1551 env, obj, clazz);
1552 #endif /* USDT2 */
1553 jboolean ret = JNI_TRUE;
1554 if (obj != NULL) {
1555 ret = JNI_FALSE;
1556 Klass* k = java_lang_Class::as_Klass(
1557 JNIHandles::resolve_non_null(clazz));
1558 if (k != NULL) {
1559 ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;
1560 }
1561 }
1562 #ifndef USDT2
1563 DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);
1564 #else /* USDT2 */
1565 HOTSPOT_JNI_ISINSTANCEOF_RETURN(
1566 ret);
1567 #endif /* USDT2 */
1568 return ret;
1569 JNI_END
1570
1571
1572 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,
1573 const char *sig, bool is_static, TRAPS) {
1574 // %%%% This code should probably just call into a method in the LinkResolver
1575 //
1576 // The class should have been loaded (we have an instance of the class
1577 // passed in) so the method and signature should already be in the symbol
1578 // table. If they're not there, the method doesn't exist.
1579 const char *name_to_probe = (name_str == NULL)
1580 ? vmSymbols::object_initializer_name()->as_C_string()
1581 : name_str;
1582 TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));
1583 TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));
1584
1585 if (name == NULL || signature == NULL) {
1586 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1587 }
1588
1589 // Throw a NoSuchMethodError exception if we have an instance of a
1590 // primitive java.lang.Class
1591 if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {
1592 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1593 }
1594
1595 KlassHandle klass(THREAD,
1596 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1597
1598 // Make sure class is linked and initialized before handing id's out to
1599 // Method*s.
1600 klass()->initialize(CHECK_NULL);
1601
1602 Method* m;
1603 if (name == vmSymbols::object_initializer_name() ||
1604 name == vmSymbols::class_initializer_name()) {
1605 // Never search superclasses for constructors
1606 if (klass->oop_is_instance()) {
1607 m = InstanceKlass::cast(klass())->find_method(name, signature);
1608 } else {
1609 m = NULL;
1610 }
1611 } else {
1612 m = klass->lookup_method(name, signature);
1613 if (m == NULL && klass->oop_is_instance()) {
1614 m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);
1615 }
1616 }
1617 if (m == NULL || (m->is_static() != is_static)) {
1618 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1619 }
1620 return m->jmethod_id();
1621 }
1622
1623
1624 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,
1625 const char *name, const char *sig))
1626 JNIWrapper("GetMethodID");
1627 #ifndef USDT2
1628 DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);
1629 #else /* USDT2 */
1630 HOTSPOT_JNI_GETMETHODID_ENTRY(
1631 env, clazz, (char *) name, (char *) sig);
1632 #endif /* USDT2 */
1633 jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);
1634 #ifndef USDT2
1635 DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);
1636 #else /* USDT2 */
1637 HOTSPOT_JNI_GETMETHODID_RETURN(
1638 (uintptr_t) ret);
1639 #endif /* USDT2 */
1640 return ret;
1641 JNI_END
1642
1643
1644 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,
1645 const char *name, const char *sig))
1646 JNIWrapper("GetStaticMethodID");
1647 #ifndef USDT2
1648 DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);
1649 #else /* USDT2 */
1650 HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(
1651 env, (char *) clazz, (char *) name, (char *)sig);
1652 #endif /* USDT2 */
1653 jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);
1654 #ifndef USDT2
1655 DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);
1656 #else /* USDT2 */
1657 HOTSPOT_JNI_GETSTATICMETHODID_RETURN(
1658 (uintptr_t) ret);
1659 #endif /* USDT2 */
1660 return ret;
1661 JNI_END
1662
1663
1664
1665 //
1666 // Calling Methods
1667 //
1668
1669 #ifndef USDT2
1670 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \
1671 \
1672 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\
1673 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\
1674 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\
1675 \
1676 JNI_ENTRY(ResultType, \
1677 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1678 JNIWrapper("Call" XSTR(Result) "Method"); \
1679 \
1680 DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \
1681 ResultType ret = 0;\
1682 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1683 (const ResultType&)ret);\
1684 \
1685 va_list args; \
1686 va_start(args, methodID); \
1687 JavaValue jvalue(Tag); \
1688 JNI_ArgumentPusherVaArg ap(methodID, args); \
1689 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1690 va_end(args); \
1691 ret = jvalue.get_##ResultType(); \
1692 return ret;\
1693 JNI_END \
1694 \
1695 \
1696 JNI_ENTRY(ResultType, \
1697 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1698 JNIWrapper("Call" XSTR(Result) "MethodV"); \
1699 \
1700 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \
1701 ResultType ret = 0;\
1702 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1703 (const ResultType&)ret);\
1704 \
1705 JavaValue jvalue(Tag); \
1706 JNI_ArgumentPusherVaArg ap(methodID, args); \
1707 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1708 ret = jvalue.get_##ResultType(); \
1709 return ret;\
1710 JNI_END \
1711 \
1712 \
1713 JNI_ENTRY(ResultType, \
1714 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1715 JNIWrapper("Call" XSTR(Result) "MethodA"); \
1716 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \
1717 ResultType ret = 0;\
1718 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1719 (const ResultType&)ret);\
1720 \
1721 JavaValue jvalue(Tag); \
1722 JNI_ArgumentPusherArray ap(methodID, args); \
1723 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1724 ret = jvalue.get_##ResultType(); \
1725 return ret;\
1726 JNI_END
1727
1728 // the runtime type of subword integral basic types is integer
1729 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)
1730 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE)
1731 DEFINE_CALLMETHOD(jchar, Char, T_CHAR)
1732 DEFINE_CALLMETHOD(jshort, Short, T_SHORT)
1733
1734 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT)
1735 DEFINE_CALLMETHOD(jint, Int, T_INT)
1736 DEFINE_CALLMETHOD(jlong, Long, T_LONG)
1737 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT)
1738 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE)
1739
1740 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);
1741 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);
1742 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);
1743
1744 #else /* USDT2 */
1745
1746 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \
1747 , EntryProbe, ReturnProbe) \
1748 \
1749 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \
1750 , ReturnProbe); \
1751 \
1752 JNI_ENTRY(ResultType, \
1753 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1754 JNIWrapper("Call" XSTR(Result) "Method"); \
1755 \
1756 EntryProbe; \
1757 ResultType ret = 0;\
1758 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1759 (const ResultType&)ret);\
1760 \
1761 va_list args; \
1762 va_start(args, methodID); \
1763 JavaValue jvalue(Tag); \
1764 JNI_ArgumentPusherVaArg ap(methodID, args); \
1765 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1766 va_end(args); \
1767 ret = jvalue.get_##ResultType(); \
1768 return ret;\
1769 JNI_END
1770
1771 // the runtime type of subword integral basic types is integer
1772 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN
1773 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1774 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))
1775 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE
1776 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1777 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))
1778 DEFINE_CALLMETHOD(jchar, Char, T_CHAR
1779 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1780 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))
1781 DEFINE_CALLMETHOD(jshort, Short, T_SHORT
1782 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1783 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))
1784
1785 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT
1786 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1787 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))
1788 DEFINE_CALLMETHOD(jint, Int, T_INT,
1789 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1790 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))
1791 DEFINE_CALLMETHOD(jlong, Long, T_LONG
1792 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1793 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))
1794 // Float and double probes don't return value because dtrace doesn't currently support it
1795 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT
1796 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1797 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())
1798 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE
1799 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1800 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())
1801
1802 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \
1803 , EntryProbe, ReturnProbe) \
1804 \
1805 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \
1806 , ReturnProbe); \
1807 \
1808 JNI_ENTRY(ResultType, \
1809 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1810 JNIWrapper("Call" XSTR(Result) "MethodV"); \
1811 \
1812 EntryProbe;\
1813 ResultType ret = 0;\
1814 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1815 (const ResultType&)ret);\
1816 \
1817 JavaValue jvalue(Tag); \
1818 JNI_ArgumentPusherVaArg ap(methodID, args); \
1819 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1820 ret = jvalue.get_##ResultType(); \
1821 return ret;\
1822 JNI_END
1823
1824 // the runtime type of subword integral basic types is integer
1825 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN
1826 , HOTSPOT_JNI_CALLBOOLEANMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1827 HOTSPOT_JNI_CALLBOOLEANMETHODV_RETURN(_ret_ref))
1828 DEFINE_CALLMETHODV(jbyte, Byte, T_BYTE
1829 , HOTSPOT_JNI_CALLBYTEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1830 HOTSPOT_JNI_CALLBYTEMETHODV_RETURN(_ret_ref))
1831 DEFINE_CALLMETHODV(jchar, Char, T_CHAR
1832 , HOTSPOT_JNI_CALLCHARMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1833 HOTSPOT_JNI_CALLCHARMETHODV_RETURN(_ret_ref))
1834 DEFINE_CALLMETHODV(jshort, Short, T_SHORT
1835 , HOTSPOT_JNI_CALLSHORTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1836 HOTSPOT_JNI_CALLSHORTMETHODV_RETURN(_ret_ref))
1837
1838 DEFINE_CALLMETHODV(jobject, Object, T_OBJECT
1839 , HOTSPOT_JNI_CALLOBJECTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1840 HOTSPOT_JNI_CALLOBJECTMETHODV_RETURN(_ret_ref))
1841 DEFINE_CALLMETHODV(jint, Int, T_INT,
1842 HOTSPOT_JNI_CALLINTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1843 HOTSPOT_JNI_CALLINTMETHODV_RETURN(_ret_ref))
1844 DEFINE_CALLMETHODV(jlong, Long, T_LONG
1845 , HOTSPOT_JNI_CALLLONGMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1846 HOTSPOT_JNI_CALLLONGMETHODV_RETURN(_ret_ref))
1847 // Float and double probes don't return value because dtrace doesn't currently support it
1848 DEFINE_CALLMETHODV(jfloat, Float, T_FLOAT
1849 , HOTSPOT_JNI_CALLFLOATMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1850 HOTSPOT_JNI_CALLFLOATMETHODV_RETURN())
1851 DEFINE_CALLMETHODV(jdouble, Double, T_DOUBLE
1852 , HOTSPOT_JNI_CALLDOUBLEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1853 HOTSPOT_JNI_CALLDOUBLEMETHODV_RETURN())
1854
1855 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \
1856 , EntryProbe, ReturnProbe) \
1857 \
1858 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \
1859 , ReturnProbe); \
1860 \
1861 JNI_ENTRY(ResultType, \
1862 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1863 JNIWrapper("Call" XSTR(Result) "MethodA"); \
1864 EntryProbe; \
1865 ResultType ret = 0;\
1866 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1867 (const ResultType&)ret);\
1868 \
1869 JavaValue jvalue(Tag); \
1870 JNI_ArgumentPusherArray ap(methodID, args); \
1871 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1872 ret = jvalue.get_##ResultType(); \
1873 return ret;\
1874 JNI_END
1875
1876 // the runtime type of subword integral basic types is integer
1877 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN
1878 , HOTSPOT_JNI_CALLBOOLEANMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1879 HOTSPOT_JNI_CALLBOOLEANMETHODA_RETURN(_ret_ref))
1880 DEFINE_CALLMETHODA(jbyte, Byte, T_BYTE
1881 , HOTSPOT_JNI_CALLBYTEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1882 HOTSPOT_JNI_CALLBYTEMETHODA_RETURN(_ret_ref))
1883 DEFINE_CALLMETHODA(jchar, Char, T_CHAR
1884 , HOTSPOT_JNI_CALLCHARMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1885 HOTSPOT_JNI_CALLCHARMETHODA_RETURN(_ret_ref))
1886 DEFINE_CALLMETHODA(jshort, Short, T_SHORT
1887 , HOTSPOT_JNI_CALLSHORTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1888 HOTSPOT_JNI_CALLSHORTMETHODA_RETURN(_ret_ref))
1889
1890 DEFINE_CALLMETHODA(jobject, Object, T_OBJECT
1891 , HOTSPOT_JNI_CALLOBJECTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1892 HOTSPOT_JNI_CALLOBJECTMETHODA_RETURN(_ret_ref))
1893 DEFINE_CALLMETHODA(jint, Int, T_INT,
1894 HOTSPOT_JNI_CALLINTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1895 HOTSPOT_JNI_CALLINTMETHODA_RETURN(_ret_ref))
1896 DEFINE_CALLMETHODA(jlong, Long, T_LONG
1897 , HOTSPOT_JNI_CALLLONGMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1898 HOTSPOT_JNI_CALLLONGMETHODA_RETURN(_ret_ref))
1899 // Float and double probes don't return value because dtrace doesn't currently support it
1900 DEFINE_CALLMETHODA(jfloat, Float, T_FLOAT
1901 , HOTSPOT_JNI_CALLFLOATMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1902 HOTSPOT_JNI_CALLFLOATMETHODA_RETURN())
1903 DEFINE_CALLMETHODA(jdouble, Double, T_DOUBLE
1904 , HOTSPOT_JNI_CALLDOUBLEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1905 HOTSPOT_JNI_CALLDOUBLEMETHODA_RETURN())
1906
1907 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());
1908 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());
1909 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());
1910
1911 #endif /* USDT2 */
1912
1913 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))
1914 JNIWrapper("CallVoidMethod");
1915 #ifndef USDT2
1916 DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);
1917 #else /* USDT2 */
1918 HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(
1919 env, obj, (uintptr_t) methodID);
1920 #endif /* USDT2 */
1921 DT_VOID_RETURN_MARK(CallVoidMethod);
1922
1923 va_list args;
1924 va_start(args, methodID);
1925 JavaValue jvalue(T_VOID);
1926 JNI_ArgumentPusherVaArg ap(methodID, args);
1927 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1928 va_end(args);
1929 JNI_END
1930
1931
1932 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))
1933 JNIWrapper("CallVoidMethodV");
1934 #ifndef USDT2
1935 DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);
1936 #else /* USDT2 */
1937 HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(
1938 env, obj, (uintptr_t) methodID);
1939 #endif /* USDT2 */
1940 DT_VOID_RETURN_MARK(CallVoidMethodV);
1941
1942 JavaValue jvalue(T_VOID);
1943 JNI_ArgumentPusherVaArg ap(methodID, args);
1944 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1945 JNI_END
1946
1947
1948 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))
1949 JNIWrapper("CallVoidMethodA");
1950 #ifndef USDT2
1951 DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);
1952 #else /* USDT2 */
1953 HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(
1954 env, obj, (uintptr_t) methodID);
1955 #endif /* USDT2 */
1956 DT_VOID_RETURN_MARK(CallVoidMethodA);
1957
1958 JavaValue jvalue(T_VOID);
1959 JNI_ArgumentPusherArray ap(methodID, args);
1960 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1961 JNI_END
1962
1963
1964 #ifndef USDT2
1965 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \
1966 \
1967 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\
1968 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\
1969 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\
1970 \
1971 JNI_ENTRY(ResultType, \
1972 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
1973 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
1974 \
1975 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\
1976 ResultType ret;\
1977 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
1978 (const ResultType&)ret);\
1979 \
1980 va_list args; \
1981 va_start(args, methodID); \
1982 JavaValue jvalue(Tag); \
1983 JNI_ArgumentPusherVaArg ap(methodID, args); \
1984 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1985 va_end(args); \
1986 ret = jvalue.get_##ResultType(); \
1987 return ret;\
1988 JNI_END \
1989 \
1990 JNI_ENTRY(ResultType, \
1991 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
1992 JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \
1993 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\
1994 ResultType ret;\
1995 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
1996 (const ResultType&)ret);\
1997 \
1998 JavaValue jvalue(Tag); \
1999 JNI_ArgumentPusherVaArg ap(methodID, args); \
2000 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2001 ret = jvalue.get_##ResultType(); \
2002 return ret;\
2003 JNI_END \
2004 \
2005 JNI_ENTRY(ResultType, \
2006 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2007 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2008 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\
2009 ResultType ret;\
2010 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2011 (const ResultType&)ret);\
2012 \
2013 JavaValue jvalue(Tag); \
2014 JNI_ArgumentPusherArray ap(methodID, args); \
2015 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2016 ret = jvalue.get_##ResultType(); \
2017 return ret;\
2018 JNI_END
2019
2020 // the runtime type of subword integral basic types is integer
2021 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)
2022 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE)
2023 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR)
2024 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT)
2025
2026 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT)
2027 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT)
2028 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG)
2029 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT)
2030 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE)
2031
2032
2033 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);
2034 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);
2035 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);
2036
2037 #else /* USDT2 */
2038
2039 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \
2040 , EntryProbe, ReturnProbe) \
2041 \
2042 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \
2043 , ReturnProbe);\
2044 \
2045 JNI_ENTRY(ResultType, \
2046 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
2047 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
2048 \
2049 EntryProbe;\
2050 ResultType ret;\
2051 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
2052 (const ResultType&)ret);\
2053 \
2054 va_list args; \
2055 va_start(args, methodID); \
2056 JavaValue jvalue(Tag); \
2057 JNI_ArgumentPusherVaArg ap(methodID, args); \
2058 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2059 va_end(args); \
2060 ret = jvalue.get_##ResultType(); \
2061 return ret;\
2062 JNI_END
2063
2064 // the runtime type of subword integral basic types is integer
2065 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN
2066 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2067 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))
2068 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE
2069 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2070 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))
2071 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR
2072 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2073 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))
2074 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT
2075 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2076 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))
2077
2078 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT
2079 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2080 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))
2081 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT
2082 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2083 HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))
2084 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG
2085 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2086 // Float and double probes don't return value because dtrace doesn't currently support it
2087 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))
2088 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT
2089 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2090 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())
2091 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE
2092 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2093 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())
2094
2095 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \
2096 , EntryProbe, ReturnProbe) \
2097 \
2098 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \
2099 , ReturnProbe);\
2100 \
2101 JNI_ENTRY(ResultType, \
2102 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
2103 JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \
2104 \
2105 EntryProbe;\
2106 ResultType ret;\
2107 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
2108 (const ResultType&)ret);\
2109 \
2110 JavaValue jvalue(Tag); \
2111 JNI_ArgumentPusherVaArg ap(methodID, args); \
2112 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2113 ret = jvalue.get_##ResultType(); \
2114 return ret;\
2115 JNI_END
2116
2117 // the runtime type of subword integral basic types is integer
2118 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN
2119 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2120 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))
2121 DEFINE_CALLNONVIRTUALMETHODV(jbyte, Byte, T_BYTE
2122 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2123 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))
2124 DEFINE_CALLNONVIRTUALMETHODV(jchar, Char, T_CHAR
2125 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2126 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))
2127 DEFINE_CALLNONVIRTUALMETHODV(jshort, Short, T_SHORT
2128 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2129 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))
2130
2131 DEFINE_CALLNONVIRTUALMETHODV(jobject, Object, T_OBJECT
2132 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2133 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))
2134 DEFINE_CALLNONVIRTUALMETHODV(jint, Int, T_INT
2135 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2136 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))
2137 DEFINE_CALLNONVIRTUALMETHODV(jlong, Long, T_LONG
2138 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2139 // Float and double probes don't return value because dtrace doesn't currently support it
2140 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))
2141 DEFINE_CALLNONVIRTUALMETHODV(jfloat, Float, T_FLOAT
2142 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2143 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())
2144 DEFINE_CALLNONVIRTUALMETHODV(jdouble, Double, T_DOUBLE
2145 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2146 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())
2147
2148 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \
2149 , EntryProbe, ReturnProbe) \
2150 \
2151 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \
2152 , ReturnProbe);\
2153 \
2154 JNI_ENTRY(ResultType, \
2155 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2156 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2157 \
2158 EntryProbe;\
2159 ResultType ret;\
2160 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2161 (const ResultType&)ret);\
2162 \
2163 JavaValue jvalue(Tag); \
2164 JNI_ArgumentPusherArray ap(methodID, args); \
2165 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2166 ret = jvalue.get_##ResultType(); \
2167 return ret;\
2168 JNI_END
2169
2170 // the runtime type of subword integral basic types is integer
2171 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN
2172 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2173 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))
2174 DEFINE_CALLNONVIRTUALMETHODA(jbyte, Byte, T_BYTE
2175 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2176 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))
2177 DEFINE_CALLNONVIRTUALMETHODA(jchar, Char, T_CHAR
2178 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2179 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))
2180 DEFINE_CALLNONVIRTUALMETHODA(jshort, Short, T_SHORT
2181 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2182 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))
2183
2184 DEFINE_CALLNONVIRTUALMETHODA(jobject, Object, T_OBJECT
2185 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2186 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))
2187 DEFINE_CALLNONVIRTUALMETHODA(jint, Int, T_INT
2188 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2189 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))
2190 DEFINE_CALLNONVIRTUALMETHODA(jlong, Long, T_LONG
2191 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2192 // Float and double probes don't return value because dtrace doesn't currently support it
2193 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))
2194 DEFINE_CALLNONVIRTUALMETHODA(jfloat, Float, T_FLOAT
2195 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2196 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())
2197 DEFINE_CALLNONVIRTUALMETHODA(jdouble, Double, T_DOUBLE
2198 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2199 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())
2200
2201 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod
2202 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());
2203 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV
2204 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());
2205 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA
2206 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());
2207 #endif /* USDT2 */
2208
2209 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))
2210 JNIWrapper("CallNonvirtualVoidMethod");
2211
2212 #ifndef USDT2
2213 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,
2214 env, obj, cls, methodID);
2215 #else /* USDT2 */
2216 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(
2217 env, obj, cls, (uintptr_t) methodID);
2218 #endif /* USDT2 */
2219 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);
2220
2221 va_list args;
2222 va_start(args, methodID);
2223 JavaValue jvalue(T_VOID);
2224 JNI_ArgumentPusherVaArg ap(methodID, args);
2225 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2226 va_end(args);
2227 JNI_END
2228
2229
2230 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))
2231 JNIWrapper("CallNonvirtualVoidMethodV");
2232
2233 #ifndef USDT2
2234 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,
2235 env, obj, cls, methodID);
2236 #else /* USDT2 */
2237 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(
2238 env, obj, cls, (uintptr_t) methodID);
2239 #endif /* USDT2 */
2240 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);
2241
2242 JavaValue jvalue(T_VOID);
2243 JNI_ArgumentPusherVaArg ap(methodID, args);
2244 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2245 JNI_END
2246
2247
2248 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))
2249 JNIWrapper("CallNonvirtualVoidMethodA");
2250 #ifndef USDT2
2251 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,
2252 env, obj, cls, methodID);
2253 #else /* USDT2 */
2254 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(
2255 env, obj, cls, (uintptr_t) methodID);
2256 #endif /* USDT2 */
2257 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);
2258 JavaValue jvalue(T_VOID);
2259 JNI_ArgumentPusherArray ap(methodID, args);
2260 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2261 JNI_END
2262
2263
2264 #ifndef USDT2
2265 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \
2266 \
2267 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\
2268 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\
2269 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\
2270 \
2271 JNI_ENTRY(ResultType, \
2272 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2273 JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2274 \
2275 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\
2276 ResultType ret = 0;\
2277 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2278 (const ResultType&)ret);\
2279 \
2280 va_list args; \
2281 va_start(args, methodID); \
2282 JavaValue jvalue(Tag); \
2283 JNI_ArgumentPusherVaArg ap(methodID, args); \
2284 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2285 va_end(args); \
2286 ret = jvalue.get_##ResultType(); \
2287 return ret;\
2288 JNI_END \
2289 \
2290 JNI_ENTRY(ResultType, \
2291 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2292 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2293 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\
2294 ResultType ret = 0;\
2295 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2296 (const ResultType&)ret);\
2297 \
2298 JavaValue jvalue(Tag); \
2299 JNI_ArgumentPusherVaArg ap(methodID, args); \
2300 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2301 ret = jvalue.get_##ResultType(); \
2302 return ret;\
2303 JNI_END \
2304 \
2305 JNI_ENTRY(ResultType, \
2306 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2307 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2308 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\
2309 ResultType ret = 0;\
2310 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2311 (const ResultType&)ret);\
2312 \
2313 JavaValue jvalue(Tag); \
2314 JNI_ArgumentPusherArray ap(methodID, args); \
2315 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2316 ret = jvalue.get_##ResultType(); \
2317 return ret;\
2318 JNI_END
2319
2320 // the runtime type of subword integral basic types is integer
2321 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)
2322 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE)
2323 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR)
2324 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT)
2325
2326 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT)
2327 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT)
2328 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG)
2329 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT)
2330 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE)
2331
2332
2333 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);
2334 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);
2335 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);
2336
2337 #else /* USDT2 */
2338
2339 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \
2340 , EntryProbe, ResultProbe) \
2341 \
2342 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \
2343 , ResultProbe); \
2344 \
2345 JNI_ENTRY(ResultType, \
2346 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2347 JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2348 \
2349 EntryProbe; \
2350 ResultType ret = 0;\
2351 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2352 (const ResultType&)ret);\
2353 \
2354 va_list args; \
2355 va_start(args, methodID); \
2356 JavaValue jvalue(Tag); \
2357 JNI_ArgumentPusherVaArg ap(methodID, args); \
2358 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2359 va_end(args); \
2360 ret = jvalue.get_##ResultType(); \
2361 return ret;\
2362 JNI_END
2363
2364 // the runtime type of subword integral basic types is integer
2365 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN
2366 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2367 HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));
2368 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE
2369 , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2370 HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));
2371 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR
2372 , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2373 HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));
2374 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT
2375 , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2376 HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));
2377
2378 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT
2379 , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2380 HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));
2381 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT
2382 , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2383 HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));
2384 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG
2385 , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2386 HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));
2387 // Float and double probes don't return value because dtrace doesn't currently support it
2388 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT
2389 , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2390 HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());
2391 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE
2392 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2393 HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());
2394
2395 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \
2396 , EntryProbe, ResultProbe) \
2397 \
2398 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \
2399 , ResultProbe); \
2400 \
2401 JNI_ENTRY(ResultType, \
2402 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2403 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2404 \
2405 EntryProbe; \
2406 ResultType ret = 0;\
2407 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2408 (const ResultType&)ret);\
2409 \
2410 JavaValue jvalue(Tag); \
2411 JNI_ArgumentPusherVaArg ap(methodID, args); \
2412 /* Make sure class is initialized before trying to invoke its method */ \
2413 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \
2414 k()->initialize(CHECK_0); \
2415 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2416 va_end(args); \
2417 ret = jvalue.get_##ResultType(); \
2418 return ret;\
2419 JNI_END
2420
2421 // the runtime type of subword integral basic types is integer
2422 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN
2423 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2424 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));
2425 DEFINE_CALLSTATICMETHODV(jbyte, Byte, T_BYTE
2426 , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2427 HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));
2428 DEFINE_CALLSTATICMETHODV(jchar, Char, T_CHAR
2429 , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2430 HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));
2431 DEFINE_CALLSTATICMETHODV(jshort, Short, T_SHORT
2432 , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2433 HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));
2434
2435 DEFINE_CALLSTATICMETHODV(jobject, Object, T_OBJECT
2436 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2437 HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));
2438 DEFINE_CALLSTATICMETHODV(jint, Int, T_INT
2439 , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2440 HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));
2441 DEFINE_CALLSTATICMETHODV(jlong, Long, T_LONG
2442 , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2443 HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));
2444 // Float and double probes don't return value because dtrace doesn't currently support it
2445 DEFINE_CALLSTATICMETHODV(jfloat, Float, T_FLOAT
2446 , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2447 HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());
2448 DEFINE_CALLSTATICMETHODV(jdouble, Double, T_DOUBLE
2449 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2450 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());
2451
2452 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \
2453 , EntryProbe, ResultProbe) \
2454 \
2455 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \
2456 , ResultProbe); \
2457 \
2458 JNI_ENTRY(ResultType, \
2459 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2460 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2461 \
2462 EntryProbe; \
2463 ResultType ret = 0;\
2464 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2465 (const ResultType&)ret);\
2466 \
2467 JavaValue jvalue(Tag); \
2468 JNI_ArgumentPusherArray ap(methodID, args); \
2469 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2470 ret = jvalue.get_##ResultType(); \
2471 return ret;\
2472 JNI_END
2473
2474 // the runtime type of subword integral basic types is integer
2475 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN
2476 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2477 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));
2478 DEFINE_CALLSTATICMETHODA(jbyte, Byte, T_BYTE
2479 , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2480 HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));
2481 DEFINE_CALLSTATICMETHODA(jchar, Char, T_CHAR
2482 , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2483 HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));
2484 DEFINE_CALLSTATICMETHODA(jshort, Short, T_SHORT
2485 , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2486 HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));
2487
2488 DEFINE_CALLSTATICMETHODA(jobject, Object, T_OBJECT
2489 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2490 HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));
2491 DEFINE_CALLSTATICMETHODA(jint, Int, T_INT
2492 , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2493 HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));
2494 DEFINE_CALLSTATICMETHODA(jlong, Long, T_LONG
2495 , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2496 HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));
2497 // Float and double probes don't return value because dtrace doesn't currently support it
2498 DEFINE_CALLSTATICMETHODA(jfloat, Float, T_FLOAT
2499 , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2500 HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());
2501 DEFINE_CALLSTATICMETHODA(jdouble, Double, T_DOUBLE
2502 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2503 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());
2504
2505 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod
2506 , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());
2507 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV
2508 , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());
2509 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA
2510 , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());
2511 #endif /* USDT2 */
2512
2513 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))
2514 JNIWrapper("CallStaticVoidMethod");
2515 #ifndef USDT2
2516 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);
2517 #else /* USDT2 */
2518 HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(
2519 env, cls, (uintptr_t) methodID);
2520 #endif /* USDT2 */
2521 DT_VOID_RETURN_MARK(CallStaticVoidMethod);
2522
2523 va_list args;
2524 va_start(args, methodID);
2525 JavaValue jvalue(T_VOID);
2526 JNI_ArgumentPusherVaArg ap(methodID, args);
2527 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2528 va_end(args);
2529 JNI_END
2530
2531
2532 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))
2533 JNIWrapper("CallStaticVoidMethodV");
2534 #ifndef USDT2
2535 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);
2536 #else /* USDT2 */
2537 HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(
2538 env, cls, (uintptr_t) methodID);
2539 #endif /* USDT2 */
2540 DT_VOID_RETURN_MARK(CallStaticVoidMethodV);
2541
2542 JavaValue jvalue(T_VOID);
2543 JNI_ArgumentPusherVaArg ap(methodID, args);
2544 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2545 JNI_END
2546
2547
2548 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))
2549 JNIWrapper("CallStaticVoidMethodA");
2550 #ifndef USDT2
2551 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);
2552 #else /* USDT2 */
2553 HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(
2554 env, cls, (uintptr_t) methodID);
2555 #endif /* USDT2 */
2556 DT_VOID_RETURN_MARK(CallStaticVoidMethodA);
2557
2558 JavaValue jvalue(T_VOID);
2559 JNI_ArgumentPusherArray ap(methodID, args);
2560 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2561 JNI_END
2562
2563
2564 //
2565 // Accessing Fields
2566 //
2567
2568
2569 #ifndef USDT2
2570 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);
2571 #else /* USDT2 */
2572 DT_RETURN_MARK_DECL(GetFieldID, jfieldID
2573 , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));
2574 #endif /* USDT2 */
2575
2576 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,
2577 const char *name, const char *sig))
2578 JNIWrapper("GetFieldID");
2579 #ifndef USDT2
2580 DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);
2581 #else /* USDT2 */
2582 HOTSPOT_JNI_GETFIELDID_ENTRY(
2583 env, clazz, (char *) name, (char *) sig);
2584 #endif /* USDT2 */
2585 jfieldID ret = 0;
2586 DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);
2587
2588 // The class should have been loaded (we have an instance of the class
2589 // passed in) so the field and signature should already be in the symbol
2590 // table. If they're not there, the field doesn't exist.
2591 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2592 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2593 if (fieldname == NULL || signame == NULL) {
2594 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2595 }
2596 KlassHandle k(THREAD,
2597 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2598 // Make sure class is initialized before handing id's out to fields
2599 k()->initialize(CHECK_NULL);
2600
2601 fieldDescriptor fd;
2602 if (!k()->oop_is_instance() ||
2603 !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {
2604 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2605 }
2606
2607 // A jfieldID for a non-static field is simply the offset of the field within the instanceOop
2608 // It may also have hash bits for k, if VerifyJNIFields is turned on.
2609 ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());
2610 return ret;
2611 JNI_END
2612
2613
2614 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))
2615 JNIWrapper("GetObjectField");
2616 #ifndef USDT2
2617 DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);
2618 #else /* USDT2 */
2619 HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(
2620 env, obj, (uintptr_t) fieldID);
2621 #endif /* USDT2 */
2622 oop o = JNIHandles::resolve_non_null(obj);
2623 Klass* k = o->klass();
2624 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2625 // Keep JVMTI addition small and only check enabled flag here.
2626 // jni_GetField_probe() assumes that is okay to create handles.
2627 if (JvmtiExport::should_post_field_access()) {
2628 o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);
2629 }
2630 jobject ret = JNIHandles::make_local(env, o->obj_field(offset));
2631 #if INCLUDE_ALL_GCS
2632 // If G1 is enabled and we are accessing the value of the referent
2633 // field in a reference object then we need to register a non-null
2634 // referent with the SATB barrier.
2635 if (UseG1GC) {
2636 bool needs_barrier = false;
2637
2638 if (ret != NULL &&
2639 offset == java_lang_ref_Reference::referent_offset &&
2640 InstanceKlass::cast(k)->reference_type() != REF_NONE) {
2641 assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");
2642 needs_barrier = true;
2643 }
2644
2645 if (needs_barrier) {
2646 oop referent = JNIHandles::resolve(ret);
2647 G1SATBCardTableModRefBS::enqueue(referent);
2648 }
2649 }
2650 #endif // INCLUDE_ALL_GCS
2651 #ifndef USDT2
2652 DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);
2653 #else /* USDT2 */
2654 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(
2655 ret);
2656 #endif /* USDT2 */
2657 return ret;
2658 JNI_END
2659
2660
2661 #ifndef USDT2
2662 #define DEFINE_GETFIELD(Return,Fieldname,Result) \
2663 \
2664 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\
2665 \
2666 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2667 JNIWrapper("Get" XSTR(Result) "Field"); \
2668 \
2669 DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\
2670 Return ret = 0;\
2671 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2672 \
2673 oop o = JNIHandles::resolve_non_null(obj); \
2674 Klass* k = o->klass(); \
2675 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2676 /* Keep JVMTI addition small and only check enabled flag here. */ \
2677 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2678 /* and creates a ResetNoHandleMark. */ \
2679 if (JvmtiExport::should_post_field_access()) { \
2680 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2681 } \
2682 ret = o->Fieldname##_field(offset); \
2683 return ret; \
2684 JNI_END
2685
2686 DEFINE_GETFIELD(jboolean, bool, Boolean)
2687 DEFINE_GETFIELD(jbyte, byte, Byte)
2688 DEFINE_GETFIELD(jchar, char, Char)
2689 DEFINE_GETFIELD(jshort, short, Short)
2690 DEFINE_GETFIELD(jint, int, Int)
2691 DEFINE_GETFIELD(jlong, long, Long)
2692 DEFINE_GETFIELD(jfloat, float, Float)
2693 DEFINE_GETFIELD(jdouble, double, Double)
2694
2695 #else /* USDT2 */
2696
2697 #define DEFINE_GETFIELD(Return,Fieldname,Result \
2698 , EntryProbe, ReturnProbe) \
2699 \
2700 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \
2701 , ReturnProbe); \
2702 \
2703 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2704 JNIWrapper("Get" XSTR(Result) "Field"); \
2705 \
2706 EntryProbe; \
2707 Return ret = 0;\
2708 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2709 \
2710 oop o = JNIHandles::resolve_non_null(obj); \
2711 Klass* k = o->klass(); \
2712 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2713 /* Keep JVMTI addition small and only check enabled flag here. */ \
2714 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2715 /* and creates a ResetNoHandleMark. */ \
2716 if (JvmtiExport::should_post_field_access()) { \
2717 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2718 } \
2719 ret = o->Fieldname##_field(offset); \
2720 return ret; \
2721 JNI_END
2722
2723 DEFINE_GETFIELD(jboolean, bool, Boolean
2724 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2725 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))
2726 DEFINE_GETFIELD(jbyte, byte, Byte
2727 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2728 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))
2729 DEFINE_GETFIELD(jchar, char, Char
2730 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2731 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))
2732 DEFINE_GETFIELD(jshort, short, Short
2733 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2734 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))
2735 DEFINE_GETFIELD(jint, int, Int
2736 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2737 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))
2738 DEFINE_GETFIELD(jlong, long, Long
2739 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2740 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))
2741 // Float and double probes don't return value because dtrace doesn't currently support it
2742 DEFINE_GETFIELD(jfloat, float, Float
2743 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2744 HOTSPOT_JNI_GETFLOATFIELD_RETURN())
2745 DEFINE_GETFIELD(jdouble, double, Double
2746 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2747 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())
2748 #endif /* USDT2 */
2749
2750 address jni_GetBooleanField_addr() {
2751 return (address)jni_GetBooleanField;
2752 }
2753 address jni_GetByteField_addr() {
2754 return (address)jni_GetByteField;
2755 }
2756 address jni_GetCharField_addr() {
2757 return (address)jni_GetCharField;
2758 }
2759 address jni_GetShortField_addr() {
2760 return (address)jni_GetShortField;
2761 }
2762 address jni_GetIntField_addr() {
2763 return (address)jni_GetIntField;
2764 }
2765 address jni_GetLongField_addr() {
2766 return (address)jni_GetLongField;
2767 }
2768 address jni_GetFloatField_addr() {
2769 return (address)jni_GetFloatField;
2770 }
2771 address jni_GetDoubleField_addr() {
2772 return (address)jni_GetDoubleField;
2773 }
2774
2775 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))
2776 JNIWrapper("SetObjectField");
2777 #ifndef USDT2
2778 DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);
2779 #else /* USDT2 */
2780 HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(
2781 env, obj, (uintptr_t) fieldID, value);
2782 #endif /* USDT2 */
2783 oop o = JNIHandles::resolve_non_null(obj);
2784 Klass* k = o->klass();
2785 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2786 // Keep JVMTI addition small and only check enabled flag here.
2787 // jni_SetField_probe_nh() assumes that is not okay to create handles
2788 // and creates a ResetNoHandleMark.
2789 if (JvmtiExport::should_post_field_modification()) {
2790 jvalue field_value;
2791 field_value.l = value;
2792 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);
2793 }
2794 o->obj_field_put(offset, JNIHandles::resolve(value));
2795 #ifndef USDT2
2796 DTRACE_PROBE(hotspot_jni, SetObjectField__return);
2797 #else /* USDT2 */
2798 HOTSPOT_JNI_SETOBJECTFIELD_RETURN(
2799 );
2800 #endif /* USDT2 */
2801 JNI_END
2802
2803 #ifndef USDT2
2804 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \
2805 \
2806 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2807 JNIWrapper("Set" XSTR(Result) "Field"); \
2808 \
2809 FP_SELECT_##Result( \
2810 DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \
2811 DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \
2812 \
2813 oop o = JNIHandles::resolve_non_null(obj); \
2814 Klass* k = o->klass(); \
2815 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2816 /* Keep JVMTI addition small and only check enabled flag here. */ \
2817 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2818 /* and creates a ResetNoHandleMark. */ \
2819 if (JvmtiExport::should_post_field_modification()) { \
2820 jvalue field_value; \
2821 field_value.unionType = value; \
2822 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2823 } \
2824 o->Fieldname##_field_put(offset, value); \
2825 DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\
2826 JNI_END
2827
2828 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z)
2829 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b)
2830 DEFINE_SETFIELD(jchar, char, Char, 'C', c)
2831 DEFINE_SETFIELD(jshort, short, Short, 'S', s)
2832 DEFINE_SETFIELD(jint, int, Int, 'I', i)
2833 DEFINE_SETFIELD(jlong, long, Long, 'J', j)
2834 DEFINE_SETFIELD(jfloat, float, Float, 'F', f)
2835 DEFINE_SETFIELD(jdouble, double, Double, 'D', d)
2836
2837 #else /* USDT2 */
2838
2839 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \
2840 , EntryProbe, ReturnProbe) \
2841 \
2842 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2843 JNIWrapper("Set" XSTR(Result) "Field"); \
2844 \
2845 EntryProbe; \
2846 \
2847 oop o = JNIHandles::resolve_non_null(obj); \
2848 Klass* k = o->klass(); \
2849 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \
2850 /* Keep JVMTI addition small and only check enabled flag here. */ \
2851 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2852 /* and creates a ResetNoHandleMark. */ \
2853 if (JvmtiExport::should_post_field_modification()) { \
2854 jvalue field_value; \
2855 field_value.unionType = value; \
2856 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2857 } \
2858 if (SigType == 'Z') { value = ((jboolean)value) & 1; } \
2859 o->Fieldname##_field_put(offset, value); \
2860 ReturnProbe; \
2861 JNI_END
2862
2863 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z
2864 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2865 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
2866 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b
2867 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2868 HOTSPOT_JNI_SETBYTEFIELD_RETURN())
2869 DEFINE_SETFIELD(jchar, char, Char, 'C', c
2870 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2871 HOTSPOT_JNI_SETCHARFIELD_RETURN())
2872 DEFINE_SETFIELD(jshort, short, Short, 'S', s
2873 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2874 HOTSPOT_JNI_SETSHORTFIELD_RETURN())
2875 DEFINE_SETFIELD(jint, int, Int, 'I', i
2876 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2877 HOTSPOT_JNI_SETINTFIELD_RETURN())
2878 DEFINE_SETFIELD(jlong, long, Long, 'J', j
2879 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2880 HOTSPOT_JNI_SETLONGFIELD_RETURN())
2881 // Float and double probes don't return value because dtrace doesn't currently support it
2882 DEFINE_SETFIELD(jfloat, float, Float, 'F', f
2883 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2884 HOTSPOT_JNI_SETFLOATFIELD_RETURN())
2885 DEFINE_SETFIELD(jdouble, double, Double, 'D', d
2886 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2887 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())
2888 #endif /* USDT2 */
2889
2890 #ifndef USDT2
2891 DT_RETURN_MARK_DECL(ToReflectedField, jobject);
2892 #else /* USDT2 */
2893 DT_RETURN_MARK_DECL(ToReflectedField, jobject
2894 , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));
2895 #endif /* USDT2 */
2896
2897 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))
2898 JNIWrapper("ToReflectedField");
2899 #ifndef USDT2
2900 DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,
2901 env, cls, fieldID, isStatic);
2902 #else /* USDT2 */
2903 HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(
2904 env, cls, (uintptr_t) fieldID, isStatic);
2905 #endif /* USDT2 */
2906 jobject ret = NULL;
2907 DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);
2908
2909 fieldDescriptor fd;
2910 bool found = false;
2911 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));
2912
2913 assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");
2914
2915 if (isStatic) {
2916 // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.
2917 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2918 assert(id->is_static_field_id(), "invalid static field id");
2919 found = id->find_local_field(&fd);
2920 } else {
2921 // Non-static field. The fieldID is really the offset of the field within the instanceOop.
2922 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2923 found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);
2924 }
2925 assert(found, "bad fieldID passed into jni_ToReflectedField");
2926 oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);
2927 ret = JNIHandles::make_local(env, reflected);
2928 return ret;
2929 JNI_END
2930
2931
2932 //
2933 // Accessing Static Fields
2934 //
2935 #ifndef USDT2
2936 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);
2937 #else /* USDT2 */
2938 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID
2939 , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));
2940 #endif /* USDT2 */
2941
2942 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,
2943 const char *name, const char *sig))
2944 JNIWrapper("GetStaticFieldID");
2945 #ifndef USDT2
2946 DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);
2947 #else /* USDT2 */
2948 HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(
2949 env, clazz, (char *) name, (char *) sig);
2950 #endif /* USDT2 */
2951 jfieldID ret = NULL;
2952 DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);
2953
2954 // The class should have been loaded (we have an instance of the class
2955 // passed in) so the field and signature should already be in the symbol
2956 // table. If they're not there, the field doesn't exist.
2957 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2958 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2959 if (fieldname == NULL || signame == NULL) {
2960 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2961 }
2962 KlassHandle k(THREAD,
2963 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2964 // Make sure class is initialized before handing id's out to static fields
2965 k()->initialize(CHECK_NULL);
2966
2967 fieldDescriptor fd;
2968 if (!k()->oop_is_instance() ||
2969 !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {
2970 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2971 }
2972
2973 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
2974 JNIid* id = fd.field_holder()->jni_id_for(fd.offset());
2975 debug_only(id->set_is_static_field_id();)
2976
2977 debug_only(id->verify(fd.field_holder()));
2978
2979 ret = jfieldIDWorkaround::to_static_jfieldID(id);
2980 return ret;
2981 JNI_END
2982
2983
2984 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))
2985 JNIWrapper("GetStaticObjectField");
2986 #ifndef USDT2
2987 DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);
2988 #else /* USDT2 */
2989 HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(
2990 env, clazz, (uintptr_t) fieldID);
2991 #endif /* USDT2 */
2992 #if INCLUDE_JNI_CHECK
2993 DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)
2994 #endif // INCLUDE_JNI_CHECK
2995 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2996 assert(id->is_static_field_id(), "invalid static field id");
2997 // Keep JVMTI addition small and only check enabled flag here.
2998 // jni_GetField_probe() assumes that is okay to create handles.
2999 if (JvmtiExport::should_post_field_access()) {
3000 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);
3001 }
3002 jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));
3003 #ifndef USDT2
3004 DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);
3005 #else /* USDT2 */
3006 HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(
3007 ret);
3008 #endif /* USDT2 */
3009 return ret;
3010 JNI_END
3011
3012 #ifndef USDT2
3013 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \
3014 \
3015 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\
3016 \
3017 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3018 JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3019 DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\
3020 Return ret = 0;\
3021 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3022 (const Return&)ret);\
3023 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3024 assert(id->is_static_field_id(), "invalid static field id"); \
3025 /* Keep JVMTI addition small and only check enabled flag here. */ \
3026 /* jni_GetField_probe() assumes that is okay to create handles. */ \
3027 if (JvmtiExport::should_post_field_access()) { \
3028 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3029 } \
3030 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3031 return ret;\
3032 JNI_END
3033
3034 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean)
3035 DEFINE_GETSTATICFIELD(jbyte, byte, Byte)
3036 DEFINE_GETSTATICFIELD(jchar, char, Char)
3037 DEFINE_GETSTATICFIELD(jshort, short, Short)
3038 DEFINE_GETSTATICFIELD(jint, int, Int)
3039 DEFINE_GETSTATICFIELD(jlong, long, Long)
3040 DEFINE_GETSTATICFIELD(jfloat, float, Float)
3041 DEFINE_GETSTATICFIELD(jdouble, double, Double)
3042
3043 #else /* USDT2 */
3044
3045 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \
3046 , EntryProbe, ReturnProbe) \
3047 \
3048 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \
3049 , ReturnProbe); \
3050 \
3051 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3052 JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3053 EntryProbe; \
3054 Return ret = 0;\
3055 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3056 (const Return&)ret);\
3057 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3058 assert(id->is_static_field_id(), "invalid static field id"); \
3059 /* Keep JVMTI addition small and only check enabled flag here. */ \
3060 /* jni_GetField_probe() assumes that is okay to create handles. */ \
3061 if (JvmtiExport::should_post_field_access()) { \
3062 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3063 } \
3064 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3065 return ret;\
3066 JNI_END
3067
3068 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean
3069 , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))
3070 DEFINE_GETSTATICFIELD(jbyte, byte, Byte
3071 , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref) )
3072 DEFINE_GETSTATICFIELD(jchar, char, Char
3073 , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref) )
3074 DEFINE_GETSTATICFIELD(jshort, short, Short
3075 , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref) )
3076 DEFINE_GETSTATICFIELD(jint, int, Int
3077 , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref) )
3078 DEFINE_GETSTATICFIELD(jlong, long, Long
3079 , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref) )
3080 // Float and double probes don't return value because dtrace doesn't currently support it
3081 DEFINE_GETSTATICFIELD(jfloat, float, Float
3082 , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN() )
3083 DEFINE_GETSTATICFIELD(jdouble, double, Double
3084 , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN() )
3085 #endif /* USDT2 */
3086
3087 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))
3088 JNIWrapper("SetStaticObjectField");
3089 #ifndef USDT2
3090 DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);
3091 #else /* USDT2 */
3092 HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(
3093 env, clazz, (uintptr_t) fieldID, value);
3094 #endif /* USDT2 */
3095 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
3096 assert(id->is_static_field_id(), "invalid static field id");
3097 // Keep JVMTI addition small and only check enabled flag here.
3098 // jni_SetField_probe() assumes that is okay to create handles.
3099 if (JvmtiExport::should_post_field_modification()) {
3100 jvalue field_value;
3101 field_value.l = value;
3102 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);
3103 }
3104 id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));
3105 #ifndef USDT2
3106 DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);
3107 #else /* USDT2 */
3108 HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(
3109 );
3110 #endif /* USDT2 */
3111 JNI_END
3112
3113
3114 #ifndef USDT2
3115 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \
3116 \
3117 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3118 JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3119 FP_SELECT_##Result( \
3120 DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \
3121 DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \
3122 \
3123 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3124 assert(id->is_static_field_id(), "invalid static field id"); \
3125 /* Keep JVMTI addition small and only check enabled flag here. */ \
3126 /* jni_SetField_probe() assumes that is okay to create handles. */ \
3127 if (JvmtiExport::should_post_field_modification()) { \
3128 jvalue field_value; \
3129 field_value.unionType = value; \
3130 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3131 } \
3132 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3133 DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\
3134 JNI_END
3135
3136 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z)
3137 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b)
3138 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c)
3139 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s)
3140 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i)
3141 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j)
3142 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f)
3143 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d)
3144
3145 #else /* USDT2 */
3146
3147 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \
3148 , EntryProbe, ReturnProbe) \
3149 \
3150 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3151 JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3152 EntryProbe; \
3153 \
3154 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3155 assert(id->is_static_field_id(), "invalid static field id"); \
3156 /* Keep JVMTI addition small and only check enabled flag here. */ \
3157 /* jni_SetField_probe() assumes that is okay to create handles. */ \
3158 if (JvmtiExport::should_post_field_modification()) { \
3159 jvalue field_value; \
3160 field_value.unionType = value; \
3161 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3162 } \
3163 if (SigType == 'Z') { value = ((jboolean)value) & 1; } \
3164 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3165 ReturnProbe;\
3166 JNI_END
3167
3168 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z
3169 , HOTSPOT_JNI_SETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),
3170 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
3171 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b
3172 , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3173 HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())
3174 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c
3175 , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3176 HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())
3177 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s
3178 , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3179 HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())
3180 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i
3181 , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3182 HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())
3183 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j
3184 , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3185 HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())
3186 // Float and double probes don't return value because dtrace doesn't currently support it
3187 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f
3188 , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3189 HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())
3190 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d
3191 , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3192 HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())
3193 #endif /* USDT2 */
3194
3195 //
3196 // String Operations
3197 //
3198
3199 // Unicode Interface
3200
3201 #ifndef USDT2
3202 DT_RETURN_MARK_DECL(NewString, jstring);
3203 #else /* USDT2 */
3204 DT_RETURN_MARK_DECL(NewString, jstring
3205 , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));
3206 #endif /* USDT2 */
3207
3208 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))
3209 JNIWrapper("NewString");
3210 #ifndef USDT2
3211 DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);
3212 #else /* USDT2 */
3213 HOTSPOT_JNI_NEWSTRING_ENTRY(
3214 env, (uint16_t *) unicodeChars, len);
3215 #endif /* USDT2 */
3216 jstring ret = NULL;
3217 DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);
3218 oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);
3219 ret = (jstring) JNIHandles::make_local(env, string);
3220 return ret;
3221 JNI_END
3222
3223
3224 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))
3225 JNIWrapper("GetStringLength");
3226 #ifndef USDT2
3227 DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);
3228 #else /* USDT2 */
3229 HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(
3230 env, string);
3231 #endif /* USDT2 */
3232 jsize ret = 0;
3233 oop s = JNIHandles::resolve_non_null(string);
3234 if (java_lang_String::value(s) != NULL) {
3235 ret = java_lang_String::length(s);
3236 }
3237 #ifndef USDT2
3238 DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);
3239 #else /* USDT2 */
3240 HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(
3241 ret);
3242 #endif /* USDT2 */
3243 return ret;
3244 JNI_END
3245
3246
3247 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(
3248 JNIEnv *env, jstring string, jboolean *isCopy))
3249 JNIWrapper("GetStringChars");
3250 #ifndef USDT2
3251 DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);
3252 #else /* USDT2 */
3253 HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(
3254 env, string, (uintptr_t *) isCopy);
3255 #endif /* USDT2 */
3256 jchar* buf = NULL;
3257 oop s = JNIHandles::resolve_non_null(string);
3258 typeArrayOop s_value = java_lang_String::value(s);
3259 if (s_value != NULL) {
3260 int s_len = java_lang_String::length(s);
3261 int s_offset = java_lang_String::offset(s);
3262 buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal); // add one for zero termination
3263 /* JNI Specification states return NULL on OOM */
3264 if (buf != NULL) {
3265 if (s_len > 0) {
3266 memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);
3267 }
3268 buf[s_len] = 0;
3269 //%note jni_5
3270 if (isCopy != NULL) {
3271 *isCopy = JNI_TRUE;
3272 }
3273 }
3274 }
3275 #ifndef USDT2
3276 DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);
3277 #else /* USDT2 */
3278 HOTSPOT_JNI_GETSTRINGCHARS_RETURN(
3279 buf);
3280 #endif /* USDT2 */
3281 return buf;
3282 JNI_END
3283
3284
3285 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))
3286 JNIWrapper("ReleaseStringChars");
3287 #ifndef USDT2
3288 DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);
3289 #else /* USDT2 */
3290 HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(
3291 env, str, (uint16_t *) chars);
3292 #endif /* USDT2 */
3293 //%note jni_6
3294 if (chars != NULL) {
3295 // Since String objects are supposed to be immutable, don't copy any
3296 // new data back. A bad user will have to go after the char array.
3297 FreeHeap((void*) chars);
3298 }
3299 #ifndef USDT2
3300 DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);
3301 #else /* USDT2 */
3302 HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(
3303 );
3304 #endif /* USDT2 */
3305 JNI_END
3306
3307
3308 // UTF Interface
3309
3310 #ifndef USDT2
3311 DT_RETURN_MARK_DECL(NewStringUTF, jstring);
3312 #else /* USDT2 */
3313 DT_RETURN_MARK_DECL(NewStringUTF, jstring
3314 , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));
3315 #endif /* USDT2 */
3316
3317 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))
3318 JNIWrapper("NewStringUTF");
3319 #ifndef USDT2
3320 DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);
3321 #else /* USDT2 */
3322 HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(
3323 env, (char *) bytes);
3324 #endif /* USDT2 */
3325 jstring ret;
3326 DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);
3327
3328 oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);
3329 ret = (jstring) JNIHandles::make_local(env, result);
3330 return ret;
3331 JNI_END
3332
3333
3334 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))
3335 JNIWrapper("GetStringUTFLength");
3336 #ifndef USDT2
3337 DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);
3338 #else /* USDT2 */
3339 HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(
3340 env, string);
3341 #endif /* USDT2 */
3342 jsize ret = 0;
3343 oop java_string = JNIHandles::resolve_non_null(string);
3344 if (java_lang_String::value(java_string) != NULL) {
3345 ret = java_lang_String::utf8_length(java_string);
3346 }
3347 #ifndef USDT2
3348 DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);
3349 #else /* USDT2 */
3350 HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(
3351 ret);
3352 #endif /* USDT2 */
3353 return ret;
3354 JNI_END
3355
3356
3357 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))
3358 JNIWrapper("GetStringUTFChars");
3359 #ifndef USDT2
3360 DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);
3361 #else /* USDT2 */
3362 HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(
3363 env, string, (uintptr_t *) isCopy);
3364 #endif /* USDT2 */
3365 char* result = NULL;
3366 oop java_string = JNIHandles::resolve_non_null(string);
3367 if (java_lang_String::value(java_string) != NULL) {
3368 size_t length = java_lang_String::utf8_length(java_string);
3369 /* JNI Specification states return NULL on OOM */
3370 result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);
3371 if (result != NULL) {
3372 java_lang_String::as_utf8_string(java_string, result, (int) length + 1);
3373 if (isCopy != NULL) {
3374 *isCopy = JNI_TRUE;
3375 }
3376 }
3377 }
3378 #ifndef USDT2
3379 DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);
3380 #else /* USDT2 */
3381 HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(
3382 result);
3383 #endif /* USDT2 */
3384 return result;
3385 JNI_END
3386
3387
3388 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))
3389 JNIWrapper("ReleaseStringUTFChars");
3390 #ifndef USDT2
3391 DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);
3392 #else /* USDT2 */
3393 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(
3394 env, str, (char *) chars);
3395 #endif /* USDT2 */
3396 if (chars != NULL) {
3397 FreeHeap((char*) chars);
3398 }
3399 #ifndef USDT2
3400 DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);
3401 #else /* USDT2 */
3402 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(
3403 );
3404 #endif /* USDT2 */
3405 JNI_END
3406
3407
3408 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))
3409 JNIWrapper("GetArrayLength");
3410 #ifndef USDT2
3411 DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);
3412 #else /* USDT2 */
3413 HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(
3414 env, array);
3415 #endif /* USDT2 */
3416 arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));
3417 assert(a->is_array(), "must be array");
3418 jsize ret = a->length();
3419 #ifndef USDT2
3420 DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);
3421 #else /* USDT2 */
3422 HOTSPOT_JNI_GETARRAYLENGTH_RETURN(
3423 ret);
3424 #endif /* USDT2 */
3425 return ret;
3426 JNI_END
3427
3428
3429 //
3430 // Object Array Operations
3431 //
3432
3433 #ifndef USDT2
3434 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);
3435 #else /* USDT2 */
3436 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray
3437 , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));
3438 #endif /* USDT2 */
3439
3440 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))
3441 JNIWrapper("NewObjectArray");
3442 #ifndef USDT2
3443 DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);
3444 #else /* USDT2 */
3445 HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(
3446 env, length, elementClass, initialElement);
3447 #endif /* USDT2 */
3448 jobjectArray ret = NULL;
3449 DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);
3450 KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));
3451 Klass* ako = ek()->array_klass(CHECK_NULL);
3452 KlassHandle ak = KlassHandle(THREAD, ako);
3453 ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);
3454 objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);
3455 oop initial_value = JNIHandles::resolve(initialElement);
3456 if (initial_value != NULL) { // array already initialized with NULL
3457 for (int index = 0; index < length; index++) {
3458 result->obj_at_put(index, initial_value);
3459 }
3460 }
3461 ret = (jobjectArray) JNIHandles::make_local(env, result);
3462 return ret;
3463 JNI_END
3464
3465 #ifndef USDT2
3466 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);
3467 #else /* USDT2 */
3468 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject
3469 , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));
3470 #endif /* USDT2 */
3471
3472 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))
3473 JNIWrapper("GetObjectArrayElement");
3474 #ifndef USDT2
3475 DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);
3476 #else /* USDT2 */
3477 HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(
3478 env, array, index);
3479 #endif /* USDT2 */
3480 jobject ret = NULL;
3481 DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);
3482 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3483 if (a->is_within_bounds(index)) {
3484 ret = JNIHandles::make_local(env, a->obj_at(index));
3485 return ret;
3486 } else {
3487 char buf[jintAsStringSize];
3488 sprintf(buf, "%d", index);
3489 THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3490 }
3491 JNI_END
3492
3493 #ifndef USDT2
3494 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);
3495 #else /* USDT2 */
3496 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement
3497 , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());
3498 #endif /* USDT2 */
3499
3500 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))
3501 JNIWrapper("SetObjectArrayElement");
3502 #ifndef USDT2
3503 DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);
3504 #else /* USDT2 */
3505 HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(
3506 env, array, index, value);
3507 #endif /* USDT2 */
3508 DT_VOID_RETURN_MARK(SetObjectArrayElement);
3509
3510 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3511 oop v = JNIHandles::resolve(value);
3512 if (a->is_within_bounds(index)) {
3513 if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {
3514 a->obj_at_put(index, v);
3515 } else {
3516 THROW(vmSymbols::java_lang_ArrayStoreException());
3517 }
3518 } else {
3519 char buf[jintAsStringSize];
3520 sprintf(buf, "%d", index);
3521 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3522 }
3523 JNI_END
3524
3525
3526 #ifndef USDT2
3527 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \
3528 \
3529 DT_RETURN_MARK_DECL(New##Result##Array, Return); \
3530 \
3531 JNI_ENTRY(Return, \
3532 jni_New##Result##Array(JNIEnv *env, jsize len)) \
3533 JNIWrapper("New" XSTR(Result) "Array"); \
3534 DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\
3535 Return ret = NULL;\
3536 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3537 \
3538 oop obj= oopFactory::Allocator(len, CHECK_0); \
3539 ret = (Return) JNIHandles::make_local(env, obj); \
3540 return ret;\
3541 JNI_END
3542
3543 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean)
3544 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte)
3545 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short)
3546 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char)
3547 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int)
3548 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long)
3549 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float)
3550 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double)
3551
3552 #else /* USDT2 */
3553
3554 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \
3555 ,EntryProbe,ReturnProbe) \
3556 \
3557 DT_RETURN_MARK_DECL(New##Result##Array, Return \
3558 , ReturnProbe); \
3559 \
3560 JNI_ENTRY(Return, \
3561 jni_New##Result##Array(JNIEnv *env, jsize len)) \
3562 JNIWrapper("New" XSTR(Result) "Array"); \
3563 EntryProbe; \
3564 Return ret = NULL;\
3565 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3566 \
3567 oop obj= oopFactory::Allocator(len, CHECK_0); \
3568 ret = (Return) JNIHandles::make_local(env, obj); \
3569 return ret;\
3570 JNI_END
3571
3572 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean,
3573 HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),
3574 HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))
3575 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte,
3576 HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),
3577 HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))
3578 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short,
3579 HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),
3580 HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))
3581 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char,
3582 HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),
3583 HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))
3584 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int,
3585 HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),
3586 HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))
3587 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long,
3588 HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),
3589 HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))
3590 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float,
3591 HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),
3592 HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))
3593 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double,
3594 HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),
3595 HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))
3596 #endif /* USDT2 */
3597
3598 // Return an address which will fault if the caller writes to it.
3599
3600 static char* get_bad_address() {
3601 static char* bad_address = NULL;
3602 if (bad_address == NULL) {
3603 size_t size = os::vm_allocation_granularity();
3604 bad_address = os::reserve_memory(size);
3605 if (bad_address != NULL) {
3606 os::protect_memory(bad_address, size, os::MEM_PROT_READ,
3607 /*is_committed*/false);
3608 MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);
3609 }
3610 }
3611 return bad_address;
3612 }
3613
3614
3615 #ifndef USDT2
3616 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \
3617 \
3618 JNI_QUICK_ENTRY(ElementType*, \
3619 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3620 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3621 DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\
3622 /* allocate an chunk of memory in c land */ \
3623 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3624 ElementType* result; \
3625 int len = a->length(); \
3626 if (len == 0) { \
3627 /* Empty array: legal but useless, can't return NULL. \
3628 * Return a pointer to something useless. \
3629 * Avoid asserts in typeArrayOop. */ \
3630 result = (ElementType*)get_bad_address(); \
3631 } else { \
3632 /* JNI Specification states return NULL on OOM */ \
3633 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3634 if (result != NULL) { \
3635 /* copy the array to the c chunk */ \
3636 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \
3637 if (isCopy) { \
3638 *isCopy = JNI_TRUE; \
3639 } \
3640 } \
3641 } \
3642 DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\
3643 return result; \
3644 JNI_END
3645
3646 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3647 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte)
3648 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short)
3649 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char)
3650 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int)
3651 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long)
3652 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float)
3653 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double)
3654
3655 #else /* USDT2 */
3656
3657 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \
3658 , EntryProbe, ReturnProbe) \
3659 \
3660 JNI_QUICK_ENTRY(ElementType*, \
3661 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3662 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3663 EntryProbe; \
3664 /* allocate an chunk of memory in c land */ \
3665 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3666 ElementType* result; \
3667 int len = a->length(); \
3668 if (len == 0) { \
3669 /* Empty array: legal but useless, can't return NULL. \
3670 * Return a pointer to something useless. \
3671 * Avoid asserts in typeArrayOop. */ \
3672 result = (ElementType*)get_bad_address(); \
3673 } else { \
3674 /* JNI Specification states return NULL on OOM */ \
3675 result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3676 if (result != NULL) { \
3677 /* copy the array to the c chunk */ \
3678 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \
3679 if (isCopy) { \
3680 *isCopy = JNI_TRUE; \
3681 } \
3682 } \
3683 } \
3684 ReturnProbe; \
3685 return result; \
3686 JNI_END
3687
3688 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3689 , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3690 HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))
3691 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte
3692 , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3693 HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))
3694 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short
3695 , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3696 HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))
3697 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char
3698 , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3699 HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))
3700 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int
3701 , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3702 HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))
3703 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long
3704 , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3705 HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))
3706 // Float and double probes don't return value because dtrace doesn't currently support it
3707 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float
3708 , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3709 HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))
3710 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double
3711 , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3712 HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))
3713 #endif /* USDT2 */
3714
3715 #ifndef USDT2
3716 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \
3717 \
3718 JNI_QUICK_ENTRY(void, \
3719 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3720 ElementType *buf, jint mode)) \
3721 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3722 DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\
3723 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3724 int len = a->length(); \
3725 if (len != 0) { /* Empty array: nothing to free or copy. */ \
3726 if ((mode == 0) || (mode == JNI_COMMIT)) { \
3727 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3728 } \
3729 if ((mode == 0) || (mode == JNI_ABORT)) { \
3730 FreeHeap(buf); \
3731 } \
3732 } \
3733 DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\
3734 JNI_END
3735
3736 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3737 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte)
3738 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short)
3739 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char)
3740 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int)
3741 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long)
3742 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float)
3743 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double)
3744
3745 #else /* USDT2 */
3746
3747 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \
3748 , EntryProbe, ReturnProbe);\
3749 \
3750 JNI_QUICK_ENTRY(void, \
3751 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3752 ElementType *buf, jint mode)) \
3753 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3754 EntryProbe; \
3755 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3756 int len = a->length(); \
3757 if (len != 0) { /* Empty array: nothing to free or copy. */ \
3758 if ((mode == 0) || (mode == JNI_COMMIT)) { \
3759 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3760 } \
3761 if ((mode == 0) || (mode == JNI_ABORT)) { \
3762 FreeHeap(buf); \
3763 } \
3764 } \
3765 ReturnProbe; \
3766 JNI_END
3767
3768 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3769 , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3770 HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())
3771 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte
3772 , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),
3773 HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())
3774 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short
3775 , HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3776 HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())
3777 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char
3778 , HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3779 HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())
3780 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int
3781 , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),
3782 HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())
3783 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long
3784 , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3785 HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())
3786 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float
3787 , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),
3788 HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())
3789 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double
3790 , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),
3791 HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())
3792 #endif /* USDT2 */
3793
3794 #ifndef USDT2
3795 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3796 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\
3797 \
3798 JNI_ENTRY(void, \
3799 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3800 jsize len, ElementType *buf)) \
3801 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3802 DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\
3803 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3804 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3805 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \
3806 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3807 } else { \
3808 if (len > 0) { \
3809 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3810 memcpy((u_char*) buf, \
3811 (u_char*) src->Tag##_at_addr(start), \
3812 len << sc); \
3813 } \
3814 } \
3815 JNI_END
3816
3817 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)
3818 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte)
3819 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short)
3820 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char)
3821 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int)
3822 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long)
3823 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float)
3824 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double)
3825
3826 #else /* USDT2 */
3827
3828 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3829 , EntryProbe, ReturnProbe); \
3830 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \
3831 , ReturnProbe); \
3832 \
3833 JNI_ENTRY(void, \
3834 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3835 jsize len, ElementType *buf)) \
3836 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3837 EntryProbe; \
3838 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3839 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3840 if (start < 0 || len < 0 || (start > src->length() - len)) { \
3841 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3842 } else { \
3843 if (len > 0) { \
3844 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3845 memcpy((u_char*) buf, \
3846 (u_char*) src->Tag##_at_addr(start), \
3847 len << sc); \
3848 } \
3849 } \
3850 JNI_END
3851
3852 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool
3853 , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3854 HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());
3855 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte
3856 , HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3857 HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());
3858 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short
3859 , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3860 HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());
3861 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char
3862 , HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),
3863 HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());
3864 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int
3865 , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),
3866 HOTSPOT_JNI_GETINTARRAYREGION_RETURN());
3867 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long
3868 , HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3869 HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());
3870 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float
3871 , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3872 HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());
3873 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double
3874 , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3875 HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());
3876 #endif /* USDT2 */
3877
3878 #ifndef USDT2
3879 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3880 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\
3881 \
3882 JNI_ENTRY(void, \
3883 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3884 jsize len, const ElementType *buf)) \
3885 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3886 DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\
3887 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3888 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3889 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \
3890 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3891 } else { \
3892 if (len > 0) { \
3893 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3894 memcpy((u_char*) dst->Tag##_at_addr(start), \
3895 (u_char*) buf, \
3896 len << sc); \
3897 } \
3898 } \
3899 JNI_END
3900
3901 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)
3902 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte)
3903 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short)
3904 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char)
3905 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int)
3906 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long)
3907 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float)
3908 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double)
3909
3910 #else /* USDT2 */
3911
3912 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3913 , EntryProbe, ReturnProbe); \
3914 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \
3915 ,ReturnProbe); \
3916 \
3917 JNI_ENTRY(void, \
3918 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3919 jsize len, const ElementType *buf)) \
3920 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3921 EntryProbe; \
3922 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3923 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3924 if (start < 0 || len < 0 || (start > dst->length() - len)) { \
3925 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3926 } else { \
3927 if (len > 0) { \
3928 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3929 memcpy((u_char*) dst->Tag##_at_addr(start), \
3930 (u_char*) buf, \
3931 len << sc); \
3932 } \
3933 } \
3934 JNI_END
3935
3936 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool
3937 , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),
3938 HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())
3939 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte
3940 , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3941 HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())
3942 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short
3943 , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3944 HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())
3945 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char
3946 , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3947 HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())
3948 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int
3949 , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),
3950 HOTSPOT_JNI_SETINTARRAYREGION_RETURN())
3951 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long
3952 , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3953 HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())
3954 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float
3955 , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3956 HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())
3957 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double
3958 , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3959 HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())
3960 #endif /* USDT2 */
3961
3962
3963 //
3964 // Interception of natives
3965 //
3966
3967 // The RegisterNatives call being attempted tried to register with a method that
3968 // is not native. Ask JVM TI what prefixes have been specified. Then check
3969 // to see if the native method is now wrapped with the prefixes. See the
3970 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.
3971 static Method* find_prefixed_native(KlassHandle k,
3972 Symbol* name, Symbol* signature, TRAPS) {
3973 #if INCLUDE_JVMTI
3974 ResourceMark rm(THREAD);
3975 Method* method;
3976 int name_len = name->utf8_length();
3977 char* name_str = name->as_utf8();
3978 int prefix_count;
3979 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);
3980 for (int i = 0; i < prefix_count; i++) {
3981 char* prefix = prefixes[i];
3982 int prefix_len = (int)strlen(prefix);
3983
3984 // try adding this prefix to the method name and see if it matches another method name
3985 int trial_len = name_len + prefix_len;
3986 char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);
3987 strcpy(trial_name_str, prefix);
3988 strcat(trial_name_str, name_str);
3989 TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);
3990 if (trial_name == NULL) {
3991 continue; // no such symbol, so this prefix wasn't used, try the next prefix
3992 }
3993 method = k()->lookup_method(trial_name, signature);
3994 if (method == NULL) {
3995 continue; // signature doesn't match, try the next prefix
3996 }
3997 if (method->is_native()) {
3998 method->set_is_prefixed_native();
3999 return method; // wahoo, we found a prefixed version of the method, return it
4000 }
4001 // found as non-native, so prefix is good, add it, probably just need more prefixes
4002 name_len = trial_len;
4003 name_str = trial_name_str;
4004 }
4005 #endif // INCLUDE_JVMTI
4006 return NULL; // not found
4007 }
4008
4009 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {
4010 Method* method = k()->lookup_method(name, signature);
4011 if (method == NULL) {
4012 ResourceMark rm;
4013 stringStream st;
4014 st.print("Method %s name or signature does not match",
4015 Method::name_and_sig_as_C_string(k(), name, signature));
4016 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4017 }
4018 if (!method->is_native()) {
4019 // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)
4020 method = find_prefixed_native(k, name, signature, THREAD);
4021 if (method == NULL) {
4022 ResourceMark rm;
4023 stringStream st;
4024 st.print("Method %s is not declared as native",
4025 Method::name_and_sig_as_C_string(k(), name, signature));
4026 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4027 }
4028 }
4029
4030 if (entry != NULL) {
4031 method->set_native_function(entry,
4032 Method::native_bind_event_is_interesting);
4033 } else {
4034 method->clear_native_function();
4035 }
4036 if (PrintJNIResolving) {
4037 ResourceMark rm(THREAD);
4038 tty->print_cr("[Registering JNI native method %s.%s]",
4039 method->method_holder()->external_name(),
4040 method->name()->as_C_string());
4041 }
4042 return true;
4043 }
4044
4045 #ifndef USDT2
4046 DT_RETURN_MARK_DECL(RegisterNatives, jint);
4047 #else /* USDT2 */
4048 DT_RETURN_MARK_DECL(RegisterNatives, jint
4049 , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));
4050 #endif /* USDT2 */
4051
4052 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,
4053 const JNINativeMethod *methods,
4054 jint nMethods))
4055 JNIWrapper("RegisterNatives");
4056 #ifndef USDT2
4057 DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);
4058 #else /* USDT2 */
4059 HOTSPOT_JNI_REGISTERNATIVES_ENTRY(
4060 env, clazz, (void *) methods, nMethods);
4061 #endif /* USDT2 */
4062 jint ret = 0;
4063 DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);
4064
4065 KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
4066
4067 for (int index = 0; index < nMethods; index++) {
4068 const char* meth_name = methods[index].name;
4069 const char* meth_sig = methods[index].signature;
4070 int meth_name_len = (int)strlen(meth_name);
4071
4072 // The class should have been loaded (we have an instance of the class
4073 // passed in) so the method and signature should already be in the symbol
4074 // table. If they're not there, the method doesn't exist.
4075 TempNewSymbol name = SymbolTable::probe(meth_name, meth_name_len);
4076 TempNewSymbol signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));
4077
4078 if (name == NULL || signature == NULL) {
4079 ResourceMark rm;
4080 stringStream st;
4081 st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);
4082 // Must return negative value on failure
4083 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);
4084 }
4085
4086 bool res = register_native(h_k, name, signature,
4087 (address) methods[index].fnPtr, THREAD);
4088 if (!res) {
4089 ret = -1;
4090 break;
4091 }
4092 }
4093 return ret;
4094 JNI_END
4095
4096
4097 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))
4098 JNIWrapper("UnregisterNatives");
4099 #ifndef USDT2
4100 DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);
4101 #else /* USDT2 */
4102 HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(
4103 env, clazz);
4104 #endif /* USDT2 */
4105 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));
4106 //%note jni_2
4107 if (k->oop_is_instance()) {
4108 for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {
4109 Method* m = InstanceKlass::cast(k)->methods()->at(index);
4110 if (m->is_native()) {
4111 m->clear_native_function();
4112 m->set_signature_handler(NULL);
4113 }
4114 }
4115 }
4116 #ifndef USDT2
4117 DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);
4118 #else /* USDT2 */
4119 HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(
4120 0);
4121 #endif /* USDT2 */
4122 return 0;
4123 JNI_END
4124
4125 //
4126 // Monitor functions
4127 //
4128
4129 #ifndef USDT2
4130 DT_RETURN_MARK_DECL(MonitorEnter, jint);
4131 #else /* USDT2 */
4132 DT_RETURN_MARK_DECL(MonitorEnter, jint
4133 , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));
4134 #endif /* USDT2 */
4135
4136 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))
4137 #ifndef USDT2
4138 DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);
4139 #else /* USDT2 */
4140 HOTSPOT_JNI_MONITORENTER_ENTRY(
4141 env, jobj);
4142 #endif /* USDT2 */
4143 jint ret = JNI_ERR;
4144 DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);
4145
4146 // If the object is null, we can't do anything with it
4147 if (jobj == NULL) {
4148 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4149 }
4150
4151 Handle obj(thread, JNIHandles::resolve_non_null(jobj));
4152 ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));
4153 ret = JNI_OK;
4154 return ret;
4155 JNI_END
4156
4157 #ifndef USDT2
4158 DT_RETURN_MARK_DECL(MonitorExit, jint);
4159 #else /* USDT2 */
4160 DT_RETURN_MARK_DECL(MonitorExit, jint
4161 , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));
4162 #endif /* USDT2 */
4163
4164 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))
4165 #ifndef USDT2
4166 DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);
4167 #else /* USDT2 */
4168 HOTSPOT_JNI_MONITOREXIT_ENTRY(
4169 env, jobj);
4170 #endif /* USDT2 */
4171 jint ret = JNI_ERR;
4172 DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);
4173
4174 // Don't do anything with a null object
4175 if (jobj == NULL) {
4176 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4177 }
4178
4179 Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));
4180 ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));
4181
4182 ret = JNI_OK;
4183 return ret;
4184 JNI_END
4185
4186 //
4187 // Extensions
4188 //
4189
4190 #ifndef USDT2
4191 DT_VOID_RETURN_MARK_DECL(GetStringRegion);
4192 #else /* USDT2 */
4193 DT_VOID_RETURN_MARK_DECL(GetStringRegion
4194 , HOTSPOT_JNI_GETSTRINGREGION_RETURN());
4195 #endif /* USDT2 */
4196
4197 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))
4198 JNIWrapper("GetStringRegion");
4199 #ifndef USDT2
4200 DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);
4201 #else /* USDT2 */
4202 HOTSPOT_JNI_GETSTRINGREGION_ENTRY(
4203 env, string, start, len, buf);
4204 #endif /* USDT2 */
4205 DT_VOID_RETURN_MARK(GetStringRegion);
4206 oop s = JNIHandles::resolve_non_null(string);
4207 int s_len = java_lang_String::length(s);
4208 if (start < 0 || len < 0 || start > s_len - len) {
4209 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4210 } else {
4211 if (len > 0) {
4212 int s_offset = java_lang_String::offset(s);
4213 typeArrayOop s_value = java_lang_String::value(s);
4214 memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);
4215 }
4216 }
4217 JNI_END
4218
4219 #ifndef USDT2
4220 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);
4221 #else /* USDT2 */
4222 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion
4223 , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());
4224 #endif /* USDT2 */
4225
4226 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))
4227 JNIWrapper("GetStringUTFRegion");
4228 #ifndef USDT2
4229 DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);
4230 #else /* USDT2 */
4231 HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(
4232 env, string, start, len, buf);
4233 #endif /* USDT2 */
4234 DT_VOID_RETURN_MARK(GetStringUTFRegion);
4235 oop s = JNIHandles::resolve_non_null(string);
4236 int s_len = java_lang_String::length(s);
4237 if (start < 0 || len < 0 || start > s_len - len) {
4238 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4239 } else {
4240 //%note jni_7
4241 if (len > 0) {
4242 ResourceMark rm(THREAD);
4243 char *utf_region = java_lang_String::as_utf8_string(s, start, len);
4244 int utf_len = (int)strlen(utf_region);
4245 memcpy(buf, utf_region, utf_len);
4246 buf[utf_len] = 0;
4247 } else {
4248 // JDK null-terminates the buffer even in len is zero
4249 if (buf != NULL) {
4250 buf[0] = 0;
4251 }
4252 }
4253 }
4254 JNI_END
4255
4256
4257 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))
4258 JNIWrapper("GetPrimitiveArrayCritical");
4259 #ifndef USDT2
4260 DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);
4261 #else /* USDT2 */
4262 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(
4263 env, array, (uintptr_t *) isCopy);
4264 #endif /* USDT2 */
4265 GC_locker::lock_critical(thread);
4266 if (isCopy != NULL) {
4267 *isCopy = JNI_FALSE;
4268 }
4269 oop a = JNIHandles::resolve_non_null(array);
4270 assert(a->is_array(), "just checking");
4271 BasicType type;
4272 if (a->is_objArray()) {
4273 type = T_OBJECT;
4274 } else {
4275 type = TypeArrayKlass::cast(a->klass())->element_type();
4276 }
4277 void* ret = arrayOop(a)->base(type);
4278 #ifndef USDT2
4279 DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);
4280 #else /* USDT2 */
4281 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(
4282 ret);
4283 #endif /* USDT2 */
4284 return ret;
4285 JNI_END
4286
4287
4288 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))
4289 JNIWrapper("ReleasePrimitiveArrayCritical");
4290 #ifndef USDT2
4291 DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);
4292 #else /* USDT2 */
4293 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(
4294 env, array, carray, mode);
4295 #endif /* USDT2 */
4296 // The array, carray and mode arguments are ignored
4297 GC_locker::unlock_critical(thread);
4298 #ifndef USDT2
4299 DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);
4300 #else /* USDT2 */
4301 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(
4302 );
4303 #endif /* USDT2 */
4304 JNI_END
4305
4306
4307 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))
4308 JNIWrapper("GetStringCritical");
4309 #ifndef USDT2
4310 DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);
4311 #else /* USDT2 */
4312 HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(
4313 env, string, (uintptr_t *) isCopy);
4314 #endif /* USDT2 */
4315 GC_locker::lock_critical(thread);
4316 if (isCopy != NULL) {
4317 *isCopy = JNI_FALSE;
4318 }
4319 oop s = JNIHandles::resolve_non_null(string);
4320 int s_len = java_lang_String::length(s);
4321 typeArrayOop s_value = java_lang_String::value(s);
4322 int s_offset = java_lang_String::offset(s);
4323 const jchar* ret;
4324 if (s_len > 0) {
4325 ret = s_value->char_at_addr(s_offset);
4326 } else {
4327 ret = (jchar*) s_value->base(T_CHAR);
4328 }
4329 #ifndef USDT2
4330 DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);
4331 #else /* USDT2 */
4332 HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(
4333 (uint16_t *) ret);
4334 #endif /* USDT2 */
4335 return ret;
4336 JNI_END
4337
4338
4339 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))
4340 JNIWrapper("ReleaseStringCritical");
4341 #ifndef USDT2
4342 DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);
4343 #else /* USDT2 */
4344 HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(
4345 env, str, (uint16_t *) chars);
4346 #endif /* USDT2 */
4347 // The str and chars arguments are ignored
4348 GC_locker::unlock_critical(thread);
4349 #ifndef USDT2
4350 DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);
4351 #else /* USDT2 */
4352 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(
4353 );
4354 #endif /* USDT2 */
4355 JNI_END
4356
4357
4358 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))
4359 JNIWrapper("jni_NewWeakGlobalRef");
4360 #ifndef USDT2
4361 DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);
4362 #else /* USDT2 */
4363 HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(
4364 env, ref);
4365 #endif /* USDT2 */
4366 Handle ref_handle(thread, JNIHandles::resolve(ref));
4367 jweak ret = JNIHandles::make_weak_global(ref_handle);
4368 #ifndef USDT2
4369 DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);
4370 #else /* USDT2 */
4371 HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(
4372 ret);
4373 #endif /* USDT2 */
4374 return ret;
4375 JNI_END
4376
4377 // Must be JNI_ENTRY (with HandleMark)
4378 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))
4379 JNIWrapper("jni_DeleteWeakGlobalRef");
4380 #ifndef USDT2
4381 DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);
4382 #else /* USDT2 */
4383 HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(
4384 env, ref);
4385 #endif /* USDT2 */
4386 JNIHandles::destroy_weak_global(ref);
4387 #ifndef USDT2
4388 DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);
4389 #else /* USDT2 */
4390 HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(
4391 );
4392 #endif /* USDT2 */
4393 JNI_END
4394
4395
4396 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))
4397 JNIWrapper("jni_ExceptionCheck");
4398 #ifndef USDT2
4399 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);
4400 #else /* USDT2 */
4401 HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(
4402 env);
4403 #endif /* USDT2 */
4404 jni_check_async_exceptions(thread);
4405 jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;
4406 #ifndef USDT2
4407 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);
4408 #else /* USDT2 */
4409 HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(
4410 ret);
4411 #endif /* USDT2 */
4412 return ret;
4413 JNI_END
4414
4415
4416 // Initialization state for three routines below relating to
4417 // java.nio.DirectBuffers
4418 static jint directBufferSupportInitializeStarted = 0;
4419 static volatile jint directBufferSupportInitializeEnded = 0;
4420 static volatile jint directBufferSupportInitializeFailed = 0;
4421 static jclass bufferClass = NULL;
4422 static jclass directBufferClass = NULL;
4423 static jclass directByteBufferClass = NULL;
4424 static jmethodID directByteBufferConstructor = NULL;
4425 static jfieldID directBufferAddressField = NULL;
4426 static jfieldID bufferCapacityField = NULL;
4427
4428 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {
4429 Handle loader; // null (bootstrap) loader
4430 Handle protection_domain; // null protection domain
4431
4432 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
4433 jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
4434
4435 if (TraceClassResolution && result != NULL) {
4436 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
4437 }
4438 return result;
4439 }
4440
4441 // These lookups are done with the NULL (bootstrap) ClassLoader to
4442 // circumvent any security checks that would be done by jni_FindClass.
4443 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))
4444 {
4445 if ((bufferClass = lookupOne(env, "java/nio/Buffer", thread)) == NULL) { return false; }
4446 if ((directBufferClass = lookupOne(env, "sun/nio/ch/DirectBuffer", thread)) == NULL) { return false; }
4447 if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }
4448 return true;
4449 }
4450 JNI_END
4451
4452
4453 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {
4454 if (directBufferSupportInitializeFailed) {
4455 return false;
4456 }
4457
4458 if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {
4459 if (!lookupDirectBufferClasses(env)) {
4460 directBufferSupportInitializeFailed = 1;
4461 return false;
4462 }
4463
4464 // Make global references for these
4465 bufferClass = (jclass) env->NewGlobalRef(bufferClass);
4466 directBufferClass = (jclass) env->NewGlobalRef(directBufferClass);
4467 directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);
4468
4469 // Get needed field and method IDs
4470 directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");
4471 if (env->ExceptionCheck()) {
4472 env->ExceptionClear();
4473 directBufferSupportInitializeFailed = 1;
4474 return false;
4475 }
4476 directBufferAddressField = env->GetFieldID(bufferClass, "address", "J");
4477 if (env->ExceptionCheck()) {
4478 env->ExceptionClear();
4479 directBufferSupportInitializeFailed = 1;
4480 return false;
4481 }
4482 bufferCapacityField = env->GetFieldID(bufferClass, "capacity", "I");
4483 if (env->ExceptionCheck()) {
4484 env->ExceptionClear();
4485 directBufferSupportInitializeFailed = 1;
4486 return false;
4487 }
4488
4489 if ((directByteBufferConstructor == NULL) ||
4490 (directBufferAddressField == NULL) ||
4491 (bufferCapacityField == NULL)) {
4492 directBufferSupportInitializeFailed = 1;
4493 return false;
4494 }
4495
4496 directBufferSupportInitializeEnded = 1;
4497 } else {
4498 while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {
4499 // Set state as yield_all can call os:sleep. On Solaris, yield_all calls
4500 // os::sleep which requires the VM state transition. On other platforms, it
4501 // is not necessary. The following call to change the VM state is purposely
4502 // put inside the loop to avoid potential deadlock when multiple threads
4503 // try to call this method. See 6791815 for more details.
4504 ThreadInVMfromNative tivn(thread);
4505 os::yield_all();
4506 }
4507 }
4508
4509 return !directBufferSupportInitializeFailed;
4510 }
4511
4512 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)
4513 {
4514 // thread_from_jni_environment() will block if VM is gone.
4515 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4516
4517 JNIWrapper("jni_NewDirectByteBuffer");
4518 #ifndef USDT2
4519 DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);
4520 #else /* USDT2 */
4521 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(
4522 env, address, capacity);
4523 #endif /* USDT2 */
4524
4525 if (!directBufferSupportInitializeEnded) {
4526 if (!initializeDirectBufferSupport(env, thread)) {
4527 #ifndef USDT2
4528 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);
4529 #else /* USDT2 */
4530 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4531 NULL);
4532 #endif /* USDT2 */
4533 return NULL;
4534 }
4535 }
4536
4537 // Being paranoid about accidental sign extension on address
4538 jlong addr = (jlong) ((uintptr_t) address);
4539 // NOTE that package-private DirectByteBuffer constructor currently
4540 // takes int capacity
4541 jint cap = (jint) capacity;
4542 jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);
4543 #ifndef USDT2
4544 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);
4545 #else /* USDT2 */
4546 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4547 ret);
4548 #endif /* USDT2 */
4549 return ret;
4550 }
4551
4552 #ifndef USDT2
4553 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);
4554 #else /* USDT2 */
4555 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*
4556 , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));
4557 #endif /* USDT2 */
4558
4559 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)
4560 {
4561 // thread_from_jni_environment() will block if VM is gone.
4562 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4563
4564 JNIWrapper("jni_GetDirectBufferAddress");
4565 #ifndef USDT2
4566 DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);
4567 #else /* USDT2 */
4568 HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(
4569 env, buf);
4570 #endif /* USDT2 */
4571 void* ret = NULL;
4572 DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);
4573
4574 if (!directBufferSupportInitializeEnded) {
4575 if (!initializeDirectBufferSupport(env, thread)) {
4576 return 0;
4577 }
4578 }
4579
4580 if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {
4581 return 0;
4582 }
4583
4584 ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);
4585 return ret;
4586 }
4587
4588 #ifndef USDT2
4589 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);
4590 #else /* USDT2 */
4591 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong
4592 , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));
4593 #endif /* USDT2 */
4594
4595 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)
4596 {
4597 // thread_from_jni_environment() will block if VM is gone.
4598 JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4599
4600 JNIWrapper("jni_GetDirectBufferCapacity");
4601 #ifndef USDT2
4602 DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);
4603 #else /* USDT2 */
4604 HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(
4605 env, buf);
4606 #endif /* USDT2 */
4607 jlong ret = -1;
4608 DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);
4609
4610 if (!directBufferSupportInitializeEnded) {
4611 if (!initializeDirectBufferSupport(env, thread)) {
4612 ret = 0;
4613 return ret;
4614 }
4615 }
4616
4617 if (buf == NULL) {
4618 return -1;
4619 }
4620
4621 if (!env->IsInstanceOf(buf, directBufferClass)) {
4622 return -1;
4623 }
4624
4625 // NOTE that capacity is currently an int in the implementation
4626 ret = env->GetIntField(buf, bufferCapacityField);
4627 return ret;
4628 }
4629
4630
4631 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))
4632 JNIWrapper("GetVersion");
4633 #ifndef USDT2
4634 DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);
4635 #else /* USDT2 */
4636 HOTSPOT_JNI_GETVERSION_ENTRY(
4637 env);
4638 #endif /* USDT2 */
4639 #ifndef USDT2
4640 DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);
4641 #else /* USDT2 */
4642 HOTSPOT_JNI_GETVERSION_RETURN(
4643 CurrentVersion);
4644 #endif /* USDT2 */
4645 return CurrentVersion;
4646 JNI_END
4647
4648 extern struct JavaVM_ main_vm;
4649
4650 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))
4651 JNIWrapper("jni_GetJavaVM");
4652 #ifndef USDT2
4653 DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);
4654 #else /* USDT2 */
4655 HOTSPOT_JNI_GETJAVAVM_ENTRY(
4656 env, (void **) vm);
4657 #endif /* USDT2 */
4658 *vm = (JavaVM *)(&main_vm);
4659 #ifndef USDT2
4660 DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);
4661 #else /* USDT2 */
4662 HOTSPOT_JNI_GETJAVAVM_RETURN(
4663 JNI_OK);
4664 #endif /* USDT2 */
4665 return JNI_OK;
4666 JNI_END
4667
4668 // Structure containing all jni functions
4669 struct JNINativeInterface_ jni_NativeInterface = {
4670 NULL,
4671 NULL,
4672 NULL,
4673
4674 NULL,
4675
4676 jni_GetVersion,
4677
4678 jni_DefineClass,
4679 jni_FindClass,
4680
4681 jni_FromReflectedMethod,
4682 jni_FromReflectedField,
4683
4684 jni_ToReflectedMethod,
4685
4686 jni_GetSuperclass,
4687 jni_IsAssignableFrom,
4688
4689 jni_ToReflectedField,
4690
4691 jni_Throw,
4692 jni_ThrowNew,
4693 jni_ExceptionOccurred,
4694 jni_ExceptionDescribe,
4695 jni_ExceptionClear,
4696 jni_FatalError,
4697
4698 jni_PushLocalFrame,
4699 jni_PopLocalFrame,
4700
4701 jni_NewGlobalRef,
4702 jni_DeleteGlobalRef,
4703 jni_DeleteLocalRef,
4704 jni_IsSameObject,
4705
4706 jni_NewLocalRef,
4707 jni_EnsureLocalCapacity,
4708
4709 jni_AllocObject,
4710 jni_NewObject,
4711 jni_NewObjectV,
4712 jni_NewObjectA,
4713
4714 jni_GetObjectClass,
4715 jni_IsInstanceOf,
4716
4717 jni_GetMethodID,
4718
4719 jni_CallObjectMethod,
4720 jni_CallObjectMethodV,
4721 jni_CallObjectMethodA,
4722 jni_CallBooleanMethod,
4723 jni_CallBooleanMethodV,
4724 jni_CallBooleanMethodA,
4725 jni_CallByteMethod,
4726 jni_CallByteMethodV,
4727 jni_CallByteMethodA,
4728 jni_CallCharMethod,
4729 jni_CallCharMethodV,
4730 jni_CallCharMethodA,
4731 jni_CallShortMethod,
4732 jni_CallShortMethodV,
4733 jni_CallShortMethodA,
4734 jni_CallIntMethod,
4735 jni_CallIntMethodV,
4736 jni_CallIntMethodA,
4737 jni_CallLongMethod,
4738 jni_CallLongMethodV,
4739 jni_CallLongMethodA,
4740 jni_CallFloatMethod,
4741 jni_CallFloatMethodV,
4742 jni_CallFloatMethodA,
4743 jni_CallDoubleMethod,
4744 jni_CallDoubleMethodV,
4745 jni_CallDoubleMethodA,
4746 jni_CallVoidMethod,
4747 jni_CallVoidMethodV,
4748 jni_CallVoidMethodA,
4749
4750 jni_CallNonvirtualObjectMethod,
4751 jni_CallNonvirtualObjectMethodV,
4752 jni_CallNonvirtualObjectMethodA,
4753 jni_CallNonvirtualBooleanMethod,
4754 jni_CallNonvirtualBooleanMethodV,
4755 jni_CallNonvirtualBooleanMethodA,
4756 jni_CallNonvirtualByteMethod,
4757 jni_CallNonvirtualByteMethodV,
4758 jni_CallNonvirtualByteMethodA,
4759 jni_CallNonvirtualCharMethod,
4760 jni_CallNonvirtualCharMethodV,
4761 jni_CallNonvirtualCharMethodA,
4762 jni_CallNonvirtualShortMethod,
4763 jni_CallNonvirtualShortMethodV,
4764 jni_CallNonvirtualShortMethodA,
4765 jni_CallNonvirtualIntMethod,
4766 jni_CallNonvirtualIntMethodV,
4767 jni_CallNonvirtualIntMethodA,
4768 jni_CallNonvirtualLongMethod,
4769 jni_CallNonvirtualLongMethodV,
4770 jni_CallNonvirtualLongMethodA,
4771 jni_CallNonvirtualFloatMethod,
4772 jni_CallNonvirtualFloatMethodV,
4773 jni_CallNonvirtualFloatMethodA,
4774 jni_CallNonvirtualDoubleMethod,
4775 jni_CallNonvirtualDoubleMethodV,
4776 jni_CallNonvirtualDoubleMethodA,
4777 jni_CallNonvirtualVoidMethod,
4778 jni_CallNonvirtualVoidMethodV,
4779 jni_CallNonvirtualVoidMethodA,
4780
4781 jni_GetFieldID,
4782
4783 jni_GetObjectField,
4784 jni_GetBooleanField,
4785 jni_GetByteField,
4786 jni_GetCharField,
4787 jni_GetShortField,
4788 jni_GetIntField,
4789 jni_GetLongField,
4790 jni_GetFloatField,
4791 jni_GetDoubleField,
4792
4793 jni_SetObjectField,
4794 jni_SetBooleanField,
4795 jni_SetByteField,
4796 jni_SetCharField,
4797 jni_SetShortField,
4798 jni_SetIntField,
4799 jni_SetLongField,
4800 jni_SetFloatField,
4801 jni_SetDoubleField,
4802
4803 jni_GetStaticMethodID,
4804
4805 jni_CallStaticObjectMethod,
4806 jni_CallStaticObjectMethodV,
4807 jni_CallStaticObjectMethodA,
4808 jni_CallStaticBooleanMethod,
4809 jni_CallStaticBooleanMethodV,
4810 jni_CallStaticBooleanMethodA,
4811 jni_CallStaticByteMethod,
4812 jni_CallStaticByteMethodV,
4813 jni_CallStaticByteMethodA,
4814 jni_CallStaticCharMethod,
4815 jni_CallStaticCharMethodV,
4816 jni_CallStaticCharMethodA,
4817 jni_CallStaticShortMethod,
4818 jni_CallStaticShortMethodV,
4819 jni_CallStaticShortMethodA,
4820 jni_CallStaticIntMethod,
4821 jni_CallStaticIntMethodV,
4822 jni_CallStaticIntMethodA,
4823 jni_CallStaticLongMethod,
4824 jni_CallStaticLongMethodV,
4825 jni_CallStaticLongMethodA,
4826 jni_CallStaticFloatMethod,
4827 jni_CallStaticFloatMethodV,
4828 jni_CallStaticFloatMethodA,
4829 jni_CallStaticDoubleMethod,
4830 jni_CallStaticDoubleMethodV,
4831 jni_CallStaticDoubleMethodA,
4832 jni_CallStaticVoidMethod,
4833 jni_CallStaticVoidMethodV,
4834 jni_CallStaticVoidMethodA,
4835
4836 jni_GetStaticFieldID,
4837
4838 jni_GetStaticObjectField,
4839 jni_GetStaticBooleanField,
4840 jni_GetStaticByteField,
4841 jni_GetStaticCharField,
4842 jni_GetStaticShortField,
4843 jni_GetStaticIntField,
4844 jni_GetStaticLongField,
4845 jni_GetStaticFloatField,
4846 jni_GetStaticDoubleField,
4847
4848 jni_SetStaticObjectField,
4849 jni_SetStaticBooleanField,
4850 jni_SetStaticByteField,
4851 jni_SetStaticCharField,
4852 jni_SetStaticShortField,
4853 jni_SetStaticIntField,
4854 jni_SetStaticLongField,
4855 jni_SetStaticFloatField,
4856 jni_SetStaticDoubleField,
4857
4858 jni_NewString,
4859 jni_GetStringLength,
4860 jni_GetStringChars,
4861 jni_ReleaseStringChars,
4862
4863 jni_NewStringUTF,
4864 jni_GetStringUTFLength,
4865 jni_GetStringUTFChars,
4866 jni_ReleaseStringUTFChars,
4867
4868 jni_GetArrayLength,
4869
4870 jni_NewObjectArray,
4871 jni_GetObjectArrayElement,
4872 jni_SetObjectArrayElement,
4873
4874 jni_NewBooleanArray,
4875 jni_NewByteArray,
4876 jni_NewCharArray,
4877 jni_NewShortArray,
4878 jni_NewIntArray,
4879 jni_NewLongArray,
4880 jni_NewFloatArray,
4881 jni_NewDoubleArray,
4882
4883 jni_GetBooleanArrayElements,
4884 jni_GetByteArrayElements,
4885 jni_GetCharArrayElements,
4886 jni_GetShortArrayElements,
4887 jni_GetIntArrayElements,
4888 jni_GetLongArrayElements,
4889 jni_GetFloatArrayElements,
4890 jni_GetDoubleArrayElements,
4891
4892 jni_ReleaseBooleanArrayElements,
4893 jni_ReleaseByteArrayElements,
4894 jni_ReleaseCharArrayElements,
4895 jni_ReleaseShortArrayElements,
4896 jni_ReleaseIntArrayElements,
4897 jni_ReleaseLongArrayElements,
4898 jni_ReleaseFloatArrayElements,
4899 jni_ReleaseDoubleArrayElements,
4900
4901 jni_GetBooleanArrayRegion,
4902 jni_GetByteArrayRegion,
4903 jni_GetCharArrayRegion,
4904 jni_GetShortArrayRegion,
4905 jni_GetIntArrayRegion,
4906 jni_GetLongArrayRegion,
4907 jni_GetFloatArrayRegion,
4908 jni_GetDoubleArrayRegion,
4909
4910 jni_SetBooleanArrayRegion,
4911 jni_SetByteArrayRegion,
4912 jni_SetCharArrayRegion,
4913 jni_SetShortArrayRegion,
4914 jni_SetIntArrayRegion,
4915 jni_SetLongArrayRegion,
4916 jni_SetFloatArrayRegion,
4917 jni_SetDoubleArrayRegion,
4918
4919 jni_RegisterNatives,
4920 jni_UnregisterNatives,
4921
4922 jni_MonitorEnter,
4923 jni_MonitorExit,
4924
4925 jni_GetJavaVM,
4926
4927 jni_GetStringRegion,
4928 jni_GetStringUTFRegion,
4929
4930 jni_GetPrimitiveArrayCritical,
4931 jni_ReleasePrimitiveArrayCritical,
4932
4933 jni_GetStringCritical,
4934 jni_ReleaseStringCritical,
4935
4936 jni_NewWeakGlobalRef,
4937 jni_DeleteWeakGlobalRef,
4938
4939 jni_ExceptionCheck,
4940
4941 jni_NewDirectByteBuffer,
4942 jni_GetDirectBufferAddress,
4943 jni_GetDirectBufferCapacity,
4944
4945 // New 1_6 features
4946
4947 jni_GetObjectRefType
4948 };
4949
4950
4951 // For jvmti use to modify jni function table.
4952 // Java threads in native contiues to run until it is transitioned
4953 // to VM at safepoint. Before the transition or before it is blocked
4954 // for safepoint it may access jni function table. VM could crash if
4955 // any java thread access the jni function table in the middle of memcpy.
4956 // To avoid this each function pointers are copied automically.
4957 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {
4958 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
4959 intptr_t *a = (intptr_t *) jni_functions();
4960 intptr_t *b = (intptr_t *) new_jni_NativeInterface;
4961 for (uint i=0; i < sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {
4962 Atomic::store_ptr(*b++, a++);
4963 }
4964 }
4965
4966 void quicken_jni_functions() {
4967 // Replace Get<Primitive>Field with fast versions
4968 if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()
4969 && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls
4970 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)
4971 // windows x86 currently needs SEH wrapper and the gain of the fast
4972 // versions currently isn't certain for server vm on uniprocessor.
4973 && os::is_MP()
4974 #endif
4975 ) {
4976 address func;
4977 func = JNI_FastGetField::generate_fast_get_boolean_field();
4978 if (func != (address)-1) {
4979 jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;
4980 }
4981 func = JNI_FastGetField::generate_fast_get_byte_field();
4982 if (func != (address)-1) {
4983 jni_NativeInterface.GetByteField = (GetByteField_t)func;
4984 }
4985 func = JNI_FastGetField::generate_fast_get_char_field();
4986 if (func != (address)-1) {
4987 jni_NativeInterface.GetCharField = (GetCharField_t)func;
4988 }
4989 func = JNI_FastGetField::generate_fast_get_short_field();
4990 if (func != (address)-1) {
4991 jni_NativeInterface.GetShortField = (GetShortField_t)func;
4992 }
4993 func = JNI_FastGetField::generate_fast_get_int_field();
4994 if (func != (address)-1) {
4995 jni_NativeInterface.GetIntField = (GetIntField_t)func;
4996 }
4997 func = JNI_FastGetField::generate_fast_get_long_field();
4998 if (func != (address)-1) {
4999 jni_NativeInterface.GetLongField = (GetLongField_t)func;
5000 }
5001 func = JNI_FastGetField::generate_fast_get_float_field();
5002 if (func != (address)-1) {
5003 jni_NativeInterface.GetFloatField = (GetFloatField_t)func;
5004 }
5005 func = JNI_FastGetField::generate_fast_get_double_field();
5006 if (func != (address)-1) {
5007 jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;
5008 }
5009 }
5010 }
5011
5012 // Returns the function structure
5013 struct JNINativeInterface_* jni_functions() {
5014 #if INCLUDE_JNI_CHECK
5015 if (CheckJNICalls) return jni_functions_check();
5016 #endif // INCLUDE_JNI_CHECK
5017 return &jni_NativeInterface;
5018 }
5019
5020 // Returns the function structure
5021 struct JNINativeInterface_* jni_functions_nocheck() {
5022 return &jni_NativeInterface;
5023 }
5024
5025 #if INCLUDE_JFR
5026 static void post_thread_start_event(const JavaThread* jt) {
5027 assert(jt != NULL, "invariant");
5028 EventThreadStart event;
5029 if (event.should_commit()) {
5030 event.set_thread(JFR_THREAD_ID(jt));
5031 event.commit();
5032 }
5033 }
5034 #endif
5035
5036 // Invocation API
5037
5038
5039 // Forward declaration
5040 extern const struct JNIInvokeInterface_ jni_InvokeInterface;
5041
5042 // Global invocation API vars
5043 volatile jint vm_created = 0;
5044 // Indicate whether it is safe to recreate VM
5045 volatile jint safe_to_recreate_vm = 1;
5046 struct JavaVM_ main_vm = {&jni_InvokeInterface};
5047
5048
5049 #define JAVASTACKSIZE (400 * 1024) /* Default size of a thread java stack */
5050 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };
5051
5052 #ifndef USDT2
5053 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);
5054 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);
5055 #else /* USDT2 */
5056 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint
5057 , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));
5058 #endif /* USDT2 */
5059
5060 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {
5061 #ifndef USDT2
5062 HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);
5063 #else /* USDT2 */
5064 HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(
5065 args_);
5066 #endif /* USDT2 */
5067 JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;
5068 jint ret = JNI_ERR;
5069 DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);
5070
5071 if (Threads::is_supported_jni_version(args->version)) {
5072 ret = JNI_OK;
5073 }
5074 // 1.1 style no longer supported in hotspot.
5075 // According the JNI spec, we should update args->version on return.
5076 // We also use the structure to communicate with launcher about default
5077 // stack size.
5078 if (args->version == JNI_VERSION_1_1) {
5079 args->version = JNI_VERSION_1_2;
5080 // javaStackSize is int in arguments structure
5081 assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");
5082 args->javaStackSize = (jint)(ThreadStackSize * K);
5083 }
5084 return ret;
5085 }
5086
5087 #ifndef PRODUCT
5088
5089 #include "gc_implementation/shared/gcTimer.hpp"
5090 #include "gc_interface/collectedHeap.hpp"
5091 #if INCLUDE_ALL_GCS
5092 #include "gc_implementation/g1/heapRegionRemSet.hpp"
5093 #endif
5094 #include "memory/guardedMemory.hpp"
5095 #include "utilities/quickSort.hpp"
5096 #include "utilities/ostream.hpp"
5097 #if INCLUDE_VM_STRUCTS
5098 #include "runtime/vmStructs.hpp"
5099 #endif
5100
5101 #define run_unit_test(unit_test_function_call) \
5102 tty->print_cr("Running test: " #unit_test_function_call); \
5103 unit_test_function_call
5104
5105 // Forward declaration
5106 void TestOS_test();
5107 void TestReservedSpace_test();
5108 void TestReserveMemorySpecial_test();
5109 void TestVirtualSpace_test();
5110 void TestMetaspaceAux_test();
5111 void SpaceManager_test_adjust_initial_chunk_size();
5112 void TestMetachunk_test();
5113 void TestVirtualSpaceNode_test();
5114 void TestNewSize_test();
5115 void TestKlass_test();
5116 void Test_linked_list();
5117 void TestChunkedList_test();
5118 #if INCLUDE_ALL_GCS
5119 void TestOldFreeSpaceCalculation_test();
5120 void TestG1BiasedArray_test();
5121 void TestBufferingOopClosure_test();
5122 void TestCodeCacheRemSet_test();
5123 void FreeRegionList_test();
5124 void ChunkManager_test_list_index();
5125 #endif
5126
5127 void execute_internal_vm_tests() {
5128 if (ExecuteInternalVMTests) {
5129 tty->print_cr("Running internal VM tests");
5130 run_unit_test(TestOS_test());
5131 run_unit_test(TestReservedSpace_test());
5132 run_unit_test(TestReserveMemorySpecial_test());
5133 run_unit_test(TestVirtualSpace_test());
5134 run_unit_test(TestMetaspaceAux_test());
5135 run_unit_test(TestMetachunk_test());
5136 run_unit_test(TestVirtualSpaceNode_test());
5137 run_unit_test(GlobalDefinitions::test_globals());
5138 run_unit_test(GlobalDefinitions::test_proper_unit());
5139 run_unit_test(GCTimerAllTest::all());
5140 run_unit_test(arrayOopDesc::test_max_array_length());
5141 run_unit_test(CollectedHeap::test_is_in());
5142 run_unit_test(QuickSort::test_quick_sort());
5143 run_unit_test(GuardedMemory::test_guarded_memory());
5144 run_unit_test(AltHashing::test_alt_hash());
5145 run_unit_test(test_loggc_filename());
5146 run_unit_test(test_snprintf());
5147 run_unit_test(TestNewSize_test());
5148 run_unit_test(TestKlass_test());
5149 run_unit_test(Test_linked_list());
5150 run_unit_test(TestChunkedList_test());
5151 run_unit_test(ObjectMonitor::sanity_checks());
5152 #if INCLUDE_VM_STRUCTS
5153 run_unit_test(VMStructs::test());
5154 #endif
5155 #if INCLUDE_ALL_GCS
5156 run_unit_test(TestOldFreeSpaceCalculation_test());
5157 run_unit_test(TestG1BiasedArray_test());
5158 run_unit_test(HeapRegionRemSet::test_prt());
5159 run_unit_test(SpaceManager_test_adjust_initial_chunk_size());
5160 run_unit_test(ChunkManager_test_list_index());
5161 run_unit_test(TestBufferingOopClosure_test());
5162 run_unit_test(TestCodeCacheRemSet_test());
5163 if (UseG1GC) {
5164 run_unit_test(FreeRegionList_test());
5165 }
5166 #endif
5167 tty->print_cr("All internal VM tests passed");
5168 }
5169 }
5170
5171 #undef run_unit_test
5172
5173 #endif
5174
5175 #ifndef USDT2
5176 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5177 DT_RETURN_MARK_DECL(CreateJavaVM, jint);
5178 #else /* USDT2 */
5179 DT_RETURN_MARK_DECL(CreateJavaVM, jint
5180 , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));
5181 #endif /* USDT2 */
5182
5183 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {
5184 #ifndef USDT2
5185 HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5186 #else /* USDT2 */
5187 HOTSPOT_JNI_CREATEJAVAVM_ENTRY(
5188 (void **) vm, penv, args);
5189 #endif /* USDT2 */
5190
5191 jint result = JNI_ERR;
5192 DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);
5193
5194 // We're about to use Atomic::xchg for synchronization. Some Zero
5195 // platforms use the GCC builtin __sync_lock_test_and_set for this,
5196 // but __sync_lock_test_and_set is not guaranteed to do what we want
5197 // on all architectures. So we check it works before relying on it.
5198 #if defined(ZERO) && defined(ASSERT)
5199 {
5200 jint a = 0xcafebabe;
5201 jint b = Atomic::xchg(0xdeadbeef, &a);
5202 void *c = &a;
5203 void *d = Atomic::xchg_ptr(&b, &c);
5204 assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");
5205 assert(c == &b && d == &a, "Atomic::xchg_ptr() works");
5206 }
5207 #endif // ZERO && ASSERT
5208
5209 // At the moment it's only possible to have one Java VM,
5210 // since some of the runtime state is in global variables.
5211
5212 // We cannot use our mutex locks here, since they only work on
5213 // Threads. We do an atomic compare and exchange to ensure only
5214 // one thread can call this method at a time
5215
5216 // We use Atomic::xchg rather than Atomic::add/dec since on some platforms
5217 // the add/dec implementations are dependent on whether we are running
5218 // on a multiprocessor, and at this stage of initialization the os::is_MP
5219 // function used to determine this will always return false. Atomic::xchg
5220 // does not have this problem.
5221 if (Atomic::xchg(1, &vm_created) == 1) {
5222 return JNI_EEXIST; // already created, or create attempt in progress
5223 }
5224 if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {
5225 return JNI_ERR; // someone tried and failed and retry not allowed.
5226 }
5227
5228 assert(vm_created == 1, "vm_created is true during the creation");
5229
5230 /**
5231 * Certain errors during initialization are recoverable and do not
5232 * prevent this method from being called again at a later time
5233 * (perhaps with different arguments). However, at a certain
5234 * point during initialization if an error occurs we cannot allow
5235 * this function to be called again (or it will crash). In those
5236 * situations, the 'canTryAgain' flag is set to false, which atomically
5237 * sets safe_to_recreate_vm to 1, such that any new call to
5238 * JNI_CreateJavaVM will immediately fail using the above logic.
5239 */
5240 bool can_try_again = true;
5241
5242 result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);
5243 if (result == JNI_OK) {
5244 JavaThread *thread = JavaThread::current();
5245 /* thread is thread_in_vm here */
5246 *vm = (JavaVM *)(&main_vm);
5247 *(JNIEnv**)penv = thread->jni_environment();
5248
5249 // Tracks the time application was running before GC
5250 RuntimeService::record_application_start();
5251
5252 // Notify JVMTI
5253 if (JvmtiExport::should_post_thread_life()) {
5254 JvmtiExport::post_thread_start(thread);
5255 }
5256
5257 #if INCLUDE_JFR
5258 post_thread_start_event(thread);
5259 #endif
5260
5261 #ifndef PRODUCT
5262 #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED
5263 #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()
5264 #endif
5265
5266 // Check if we should compile all classes on bootclasspath
5267 if (CompileTheWorld) ClassLoader::compile_the_world();
5268 if (ReplayCompiles) ciReplay::replay(thread);
5269
5270 // Some platforms (like Win*) need a wrapper around these test
5271 // functions in order to properly handle error conditions.
5272 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);
5273 CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);
5274 #endif
5275
5276 // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.
5277 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5278 } else {
5279 if (can_try_again) {
5280 // reset safe_to_recreate_vm to 1 so that retrial would be possible
5281 safe_to_recreate_vm = 1;
5282 }
5283
5284 // Creation failed. We must reset vm_created
5285 *vm = 0;
5286 *(JNIEnv**)penv = 0;
5287 // reset vm_created last to avoid race condition. Use OrderAccess to
5288 // control both compiler and architectural-based reordering.
5289 OrderAccess::release_store(&vm_created, 0);
5290 }
5291
5292 return result;
5293 }
5294
5295 #ifndef USDT2
5296 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \
5297 JavaVM**, jsize, jsize*);
5298 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);
5299 #endif /* !USDT2 */
5300
5301 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {
5302 // See bug 4367188, the wrapper can sometimes cause VM crashes
5303 // JNIWrapper("GetCreatedJavaVMs");
5304 #ifndef USDT2
5305 HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \
5306 vm_buf, bufLen, numVMs);
5307 #else /* USDT2 */
5308 HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(
5309 (void **) vm_buf, bufLen, (uintptr_t *) numVMs);
5310 #endif /* USDT2 */
5311 if (vm_created) {
5312 if (numVMs != NULL) *numVMs = 1;
5313 if (bufLen > 0) *vm_buf = (JavaVM *)(&main_vm);
5314 } else {
5315 if (numVMs != NULL) *numVMs = 0;
5316 }
5317 #ifndef USDT2
5318 HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);
5319 #else /* USDT2 */
5320 HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(
5321 JNI_OK);
5322 #endif /* USDT2 */
5323 return JNI_OK;
5324 }
5325
5326 extern "C" {
5327
5328 #ifndef USDT2
5329 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);
5330 #else /* USDT2 */
5331 DT_RETURN_MARK_DECL(DestroyJavaVM, jint
5332 , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));
5333 #endif /* USDT2 */
5334
5335 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {
5336 #ifndef USDT2
5337 DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);
5338 #else /* USDT2 */
5339 HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(
5340 vm);
5341 #endif /* USDT2 */
5342 jint res = JNI_ERR;
5343 DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);
5344
5345 if (!vm_created) {
5346 res = JNI_ERR;
5347 return res;
5348 }
5349
5350 JNIWrapper("DestroyJavaVM");
5351 JNIEnv *env;
5352 JavaVMAttachArgs destroyargs;
5353 destroyargs.version = CurrentVersion;
5354 destroyargs.name = (char *)"DestroyJavaVM";
5355 destroyargs.group = NULL;
5356 res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);
5357 if (res != JNI_OK) {
5358 return res;
5359 }
5360
5361 // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.
5362 JavaThread* thread = JavaThread::current();
5363 ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5364 if (Threads::destroy_vm()) {
5365 // Should not change thread state, VM is gone
5366 vm_created = false;
5367 res = JNI_OK;
5368 return res;
5369 } else {
5370 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5371 res = JNI_ERR;
5372 return res;
5373 }
5374 }
5375
5376
5377 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {
5378 JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;
5379
5380 // Check below commented out from JDK1.2fcs as well
5381 /*
5382 if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {
5383 return JNI_EVERSION;
5384 }
5385 */
5386
5387 Thread* t = ThreadLocalStorage::get_thread_slow();
5388 if (t != NULL) {
5389 // If the thread has been attached this operation is a no-op
5390 *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();
5391 return JNI_OK;
5392 }
5393
5394 // Create a thread and mark it as attaching so it will be skipped by the
5395 // ThreadsListEnumerator - see CR 6404306
5396 JavaThread* thread = new JavaThread(true);
5397
5398 // Set correct safepoint info. The thread is going to call into Java when
5399 // initializing the Java level thread object. Hence, the correct state must
5400 // be set in order for the Safepoint code to deal with it correctly.
5401 thread->set_thread_state(_thread_in_vm);
5402 // Must do this before initialize_thread_local_storage
5403 thread->record_stack_base_and_size();
5404
5405 thread->initialize_thread_local_storage();
5406
5407 if (!os::create_attached_thread(thread)) {
5408 delete thread;
5409 return JNI_ERR;
5410 }
5411 // Enable stack overflow checks
5412 thread->create_stack_guard_pages();
5413
5414 thread->initialize_tlab();
5415
5416 thread->cache_global_variables();
5417
5418 // Crucial that we do not have a safepoint check for this thread, since it has
5419 // not been added to the Thread list yet.
5420 { Threads_lock->lock_without_safepoint_check();
5421 // This must be inside this lock in order to get FullGCALot to work properly, i.e., to
5422 // avoid this thread trying to do a GC before it is added to the thread-list
5423 thread->set_active_handles(JNIHandleBlock::allocate_block());
5424 Threads::add(thread, daemon);
5425 Threads_lock->unlock();
5426 }
5427 // Create thread group and name info from attach arguments
5428 oop group = NULL;
5429 char* thread_name = NULL;
5430 if (args != NULL && Threads::is_supported_jni_version(args->version)) {
5431 group = JNIHandles::resolve(args->group);
5432 thread_name = args->name; // may be NULL
5433 }
5434 if (group == NULL) group = Universe::main_thread_group();
5435
5436 // Create Java level thread object and attach it to this thread
5437 bool attach_failed = false;
5438 {
5439 EXCEPTION_MARK;
5440 HandleMark hm(THREAD);
5441 Handle thread_group(THREAD, group);
5442 thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);
5443 if (HAS_PENDING_EXCEPTION) {
5444 CLEAR_PENDING_EXCEPTION;
5445 // cleanup outside the handle mark.
5446 attach_failed = true;
5447 }
5448 }
5449
5450 if (attach_failed) {
5451 // Added missing cleanup
5452 thread->cleanup_failed_attach_current_thread();
5453 return JNI_ERR;
5454 }
5455
5456 // mark the thread as no longer attaching
5457 // this uses a fence to push the change through so we don't have
5458 // to regrab the threads_lock
5459 thread->set_done_attaching_via_jni();
5460
5461 // Set java thread status.
5462 java_lang_Thread::set_thread_status(thread->threadObj(),
5463 java_lang_Thread::RUNNABLE);
5464
5465 // Notify the debugger
5466 if (JvmtiExport::should_post_thread_life()) {
5467 JvmtiExport::post_thread_start(thread);
5468 }
5469
5470 #if INCLUDE_JFR
5471 post_thread_start_event(thread);
5472 #endif
5473
5474 *(JNIEnv**)penv = thread->jni_environment();
5475
5476 // Now leaving the VM, so change thread_state. This is normally automatically taken care
5477 // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by
5478 // using ThreadStateTransition::transition, we do a callback to the safepoint code if
5479 // needed.
5480
5481 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5482
5483 // Perform any platform dependent FPU setup
5484 os::setup_fpu();
5485
5486 return JNI_OK;
5487 }
5488
5489
5490 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {
5491 #ifndef USDT2
5492 DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);
5493 #else /* USDT2 */
5494 HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(
5495 vm, penv, _args);
5496 #endif /* USDT2 */
5497 if (!vm_created) {
5498 #ifndef USDT2
5499 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);
5500 #else /* USDT2 */
5501 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5502 (uint32_t) JNI_ERR);
5503 #endif /* USDT2 */
5504 return JNI_ERR;
5505 }
5506
5507 JNIWrapper("AttachCurrentThread");
5508 jint ret = attach_current_thread(vm, penv, _args, false);
5509 #ifndef USDT2
5510 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);
5511 #else /* USDT2 */
5512 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5513 ret);
5514 #endif /* USDT2 */
5515 return ret;
5516 }
5517
5518
5519 jint JNICALL jni_DetachCurrentThread(JavaVM *vm) {
5520 #ifndef USDT2
5521 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);
5522 #else /* USDT2 */
5523 HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(
5524 vm);
5525 #endif /* USDT2 */
5526 VM_Exit::block_if_vm_exited();
5527
5528 JNIWrapper("DetachCurrentThread");
5529
5530 // If the thread has been deattacted the operations is a no-op
5531 if (ThreadLocalStorage::thread() == NULL) {
5532 #ifndef USDT2
5533 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5534 #else /* USDT2 */
5535 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5536 JNI_OK);
5537 #endif /* USDT2 */
5538 return JNI_OK;
5539 }
5540
5541 JavaThread* thread = JavaThread::current();
5542 if (thread->has_last_Java_frame()) {
5543 #ifndef USDT2
5544 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);
5545 #else /* USDT2 */
5546 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5547 (uint32_t) JNI_ERR);
5548 #endif /* USDT2 */
5549 // Can't detach a thread that's running java, that can't work.
5550 return JNI_ERR;
5551 }
5552
5553 // Safepoint support. Have to do call-back to safepoint code, if in the
5554 // middel of a safepoint operation
5555 ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5556
5557 // XXX: Note that JavaThread::exit() call below removes the guards on the
5558 // stack pages set up via enable_stack_{red,yellow}_zone() calls
5559 // above in jni_AttachCurrentThread. Unfortunately, while the setting
5560 // of the guards is visible in jni_AttachCurrentThread above,
5561 // the removal of the guards is buried below in JavaThread::exit()
5562 // here. The abstraction should be more symmetrically either exposed
5563 // or hidden (e.g. it could probably be hidden in the same
5564 // (platform-dependent) methods where we do alternate stack
5565 // maintenance work?)
5566 thread->exit(false, JavaThread::jni_detach);
5567 delete thread;
5568
5569 #ifndef USDT2
5570 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5571 #else /* USDT2 */
5572 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5573 JNI_OK);
5574 #endif /* USDT2 */
5575 return JNI_OK;
5576 }
5577
5578 #ifndef USDT2
5579 DT_RETURN_MARK_DECL(GetEnv, jint);
5580 #else /* USDT2 */
5581 DT_RETURN_MARK_DECL(GetEnv, jint
5582 , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));
5583 #endif /* USDT2 */
5584
5585 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {
5586 #ifndef USDT2
5587 DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);
5588 #else /* USDT2 */
5589 HOTSPOT_JNI_GETENV_ENTRY(
5590 vm, penv, version);
5591 #endif /* USDT2 */
5592 jint ret = JNI_ERR;
5593 DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);
5594
5595 if (!vm_created) {
5596 *penv = NULL;
5597 ret = JNI_EDETACHED;
5598 return ret;
5599 }
5600
5601 if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {
5602 return ret;
5603 }
5604
5605 #ifndef JVMPI_VERSION_1
5606 // need these in order to be polite about older agents
5607 #define JVMPI_VERSION_1 ((jint)0x10000001)
5608 #define JVMPI_VERSION_1_1 ((jint)0x10000002)
5609 #define JVMPI_VERSION_1_2 ((jint)0x10000003)
5610 #endif // !JVMPI_VERSION_1
5611
5612 Thread* thread = ThreadLocalStorage::thread();
5613 if (thread != NULL && thread->is_Java_thread()) {
5614 if (Threads::is_supported_jni_version_including_1_1(version)) {
5615 *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();
5616 ret = JNI_OK;
5617 return ret;
5618
5619 } else if (version == JVMPI_VERSION_1 ||
5620 version == JVMPI_VERSION_1_1 ||
5621 version == JVMPI_VERSION_1_2) {
5622 tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");
5623 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5624 ret = JNI_EVERSION;
5625 return ret;
5626 } else if (JvmtiExport::is_jvmdi_version(version)) {
5627 tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");
5628 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5629 ret = JNI_EVERSION;
5630 return ret;
5631 } else {
5632 *penv = NULL;
5633 ret = JNI_EVERSION;
5634 return ret;
5635 }
5636 } else {
5637 *penv = NULL;
5638 ret = JNI_EDETACHED;
5639 return ret;
5640 }
5641 }
5642
5643
5644 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {
5645 #ifndef USDT2
5646 DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);
5647 #else /* USDT2 */
5648 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(
5649 vm, penv, _args);
5650 #endif /* USDT2 */
5651 if (!vm_created) {
5652 #ifndef USDT2
5653 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);
5654 #else /* USDT2 */
5655 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5656 (uint32_t) JNI_ERR);
5657 #endif /* USDT2 */
5658 return JNI_ERR;
5659 }
5660
5661 JNIWrapper("AttachCurrentThreadAsDaemon");
5662 jint ret = attach_current_thread(vm, penv, _args, true);
5663 #ifndef USDT2
5664 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);
5665 #else /* USDT2 */
5666 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5667 ret);
5668 #endif /* USDT2 */
5669 return ret;
5670 }
5671
5672
5673 } // End extern "C"
5674
5675 const struct JNIInvokeInterface_ jni_InvokeInterface = {
5676 NULL,
5677 NULL,
5678 NULL,
5679
5680 jni_DestroyJavaVM,
5681 jni_AttachCurrentThread,
5682 jni_DetachCurrentThread,
5683 jni_GetEnv,
5684 jni_AttachCurrentThreadAsDaemon
5685 };