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