1 /*
2 * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "jni.h"
27 #include "jvm.h"
28 #include "classfile/javaClasses.inline.hpp"
29 #include "classfile/systemDictionary.hpp"
30 #include "classfile/vmSymbols.hpp"
31 #include "memory/allocation.inline.hpp"
32 #include "memory/guardedMemory.hpp"
33 #include "oops/instanceKlass.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/symbol.hpp"
36 #include "prims/jniCheck.hpp"
37 #include "prims/jvm_misc.hpp"
38 #include "runtime/fieldDescriptor.inline.hpp"
39 #include "runtime/handles.inline.hpp"
40 #include "runtime/interfaceSupport.inline.hpp"
41 #include "runtime/jfieldIDWorkaround.hpp"
42 #include "runtime/jniHandles.inline.hpp"
43 #include "runtime/thread.inline.hpp"
44
45 // Complain every extra number of unplanned local refs
46 #define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32
47
48 // Heap objects are allowed to be directly referenced only in VM code,
49 // not in native code.
50
51 #define ASSERT_OOPS_ALLOWED \
52 assert(JavaThread::current()->thread_state() == _thread_in_vm, \
53 "jniCheck examining oops in bad state.")
54
55
56 // Execute the given block of source code with the thread in VM state.
57 // To do this, transition from the NATIVE state to the VM state, execute
58 // the code, and transtition back. The ThreadInVMfromNative constructor
59 // performs the transition to VM state, its destructor restores the
60 // NATIVE state.
61
62 #define IN_VM(source_code) { \
63 { \
64 ThreadInVMfromNative __tiv(thr); \
65 source_code \
66 } \
67 }
68
69
70 /*
71 * DECLARATIONS
72 */
73
74 static struct JNINativeInterface_ * unchecked_jni_NativeInterface;
75
76
77 /*
78 * MACRO DEFINITIONS
79 */
80
81 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the
82 // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles
83 // to be created if a fatal error should occur.
84
85 // Check for thread not attached to VM; need to catch this before
86 // assertions in the wrapper routines might fire
87
88 // Check for env being the one value appropriate for this thread.
89
90 #define JNI_ENTRY_CHECKED(result_type, header) \
91 extern "C" { \
92 result_type JNICALL header { \
93 JavaThread* thr = (JavaThread*) Thread::current_or_null(); \
94 if (thr == NULL || !thr->is_Java_thread()) { \
95 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \
96 os::abort(true); \
97 } \
98 JNIEnv* xenv = thr->jni_environment(); \
99 if (env != xenv) { \
100 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \
101 } \
102 VM_ENTRY_BASE(result_type, header, thr)
103
104
105 #define UNCHECKED() (unchecked_jni_NativeInterface)
106
107 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread";
108 static const char * warn_bad_class_descriptor1 = "JNI FindClass received a bad class descriptor \"";
109 static const char * warn_bad_class_descriptor2 = "\". A correct class descriptor " \
110 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases.";
111 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread";
112 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \
113 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical";
114 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI";
115 static const char * fatal_received_null_class = "JNI received a null class";
116 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class";
117 static const char * fatal_class_not_a_throwable_class = "JNI Throw or ThrowNew received a class argument that is not a Throwable or Throwable subclass";
118 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call";
119 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call";
120 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations";
121 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation";
122 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation";
123 static const char * fatal_non_array = "Non-array passed to JNI array operations";
124 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI";
125 static const char * fatal_should_be_static = "Non-static field ID passed to JNI";
126 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI";
127 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations";
128 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations";
129 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI";
130 static const char * fatal_null_object = "Null object passed to JNI";
131 static const char * fatal_wrong_field = "Wrong field ID passed to JNI";
132 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations";
133 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations";
134 static const char * fatal_non_string = "JNI string operation received a non-string";
135
136
137 // When in VM state:
138 static void ReportJNIWarning(JavaThread* thr, const char *msg) {
139 tty->print_cr("WARNING in native method: %s", msg);
140 thr->print_stack();
141 }
142
143 // When in NATIVE state:
144 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
145 IN_VM(
146 ReportJNIFatalError(thr, msg);
147 )
148 }
149
150 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
151 IN_VM(
152 ReportJNIWarning(thr, msg);
153 )
154 }
155
156
157
158
159 /*
160 * SUPPORT FUNCTIONS
161 */
162
163 /**
164 * Check whether or not a programmer has actually checked for exceptions. According
165 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
166 *
167 * There are two cases where the programmer needs to check for exceptions without
168 * being able to first check an error code:
169 *
170 * - The JNI functions that invoke a Java method return the result of the Java method.
171 * The programmer must call ExceptionOccurred() to check for possible exceptions
172 * that occurred during the execution of the Java method.
173 *
174 * - Some of the JNI array access functions do not return an error code, but may
175 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException.
176 *
177 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
178 *
179 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning
180 * for these functions would be pedantic.
181 */
182 static inline void
183 check_pending_exception(JavaThread* thr) {
184 if (thr->has_pending_exception()) {
185 NativeReportJNIWarning(thr, "JNI call made with exception pending");
186 }
187 if (thr->is_pending_jni_exception_check()) {
188 IN_VM(
189 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s",
190 thr->get_pending_jni_exception_check());
191 thr->print_stack();
192 )
193 thr->clear_pending_jni_exception_check(); // Just complain once
194 }
195 }
196
197 /**
198 * Add to the planned number of handles. I.e. plus current live & warning threshold
199 */
200 static inline void
201 add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) {
202 handles->set_planned_capacity(capacity +
203 handles->get_number_of_live_handles() +
204 CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
205 }
206
207
208 static inline void
209 functionEnterCritical(JavaThread* thr)
210 {
211 check_pending_exception(thr);
212 }
213
214 static inline void
215 functionEnterCriticalExceptionAllowed(JavaThread* thr)
216 {
217 }
218
219 static inline void
220 functionEnter(JavaThread* thr)
221 {
222 if (thr->in_critical()) {
223 tty->print_cr("%s", warn_other_function_in_critical);
224 }
225 check_pending_exception(thr);
226 }
227
228 static inline void
229 functionEnterExceptionAllowed(JavaThread* thr)
230 {
231 if (thr->in_critical()) {
232 tty->print_cr("%s", warn_other_function_in_critical);
233 }
234 }
235
236 static inline void
237 functionExit(JavaThread* thr)
238 {
239 JNIHandleBlock* handles = thr->active_handles();
240 size_t planned_capacity = handles->get_planned_capacity();
241 size_t live_handles = handles->get_number_of_live_handles();
242 if (live_handles > planned_capacity) {
243 IN_VM(
244 tty->print_cr("WARNING: JNI local refs: " SIZE_FORMAT ", exceeds capacity: " SIZE_FORMAT,
245 live_handles, planned_capacity);
246 thr->print_stack();
247 )
248 // Complain just the once, reset to current + warn threshold
249 add_planned_handle_capacity(handles, 0);
250 }
251 }
252
253 static inline void
254 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
255 {
256 fieldDescriptor fd;
257
258 /* make sure it is a static field */
259 if (!jfieldIDWorkaround::is_static_jfieldID(fid))
260 ReportJNIFatalError(thr, fatal_should_be_static);
261
262 /* validate the class being passed */
263 ASSERT_OOPS_ALLOWED;
264 Klass* k_oop = jniCheck::validate_class(thr, cls, false);
265
266 /* check for proper subclass hierarchy */
267 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
268 Klass* f_oop = id->holder();
269 if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))
270 ReportJNIFatalError(thr, fatal_wrong_static_field);
271
272 /* check for proper field type */
273 if (!id->find_local_field(&fd))
274 ReportJNIFatalError(thr, fatal_static_field_not_found);
275 if ((fd.field_type() != ftype) &&
276 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT) &&
277 !(fd.field_type() == T_VALUETYPE && ftype == T_OBJECT)) {
278 ReportJNIFatalError(thr, fatal_static_field_mismatch);
279 }
280 }
281
282 static inline void
283 checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)
284 {
285 fieldDescriptor fd;
286
287 /* make sure it is an instance field */
288 if (jfieldIDWorkaround::is_static_jfieldID(fid))
289 ReportJNIFatalError(thr, fatal_should_be_nonstatic);
290
291 /* validate the object being passed and then get its class */
292 ASSERT_OOPS_ALLOWED;
293 oop oopObj = jniCheck::validate_object(thr, obj);
294 if (oopObj == NULL) {
295 ReportJNIFatalError(thr, fatal_null_object);
296 }
297 Klass* k_oop = oopObj->klass();
298
299 if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {
300 ReportJNIFatalError(thr, fatal_wrong_field);
301 }
302
303 /* make sure the field exists */
304 int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);
305 if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))
306 ReportJNIFatalError(thr, fatal_wrong_field);
307
308 /* check for proper field type */
309 if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,
310 false, &fd))
311 ReportJNIFatalError(thr, fatal_instance_field_not_found);
312
313 if ((fd.field_type() != ftype) &&
314 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT) &&
315 !(fd.field_type() == T_VALUETYPE && ftype == T_OBJECT)) {
316 ReportJNIFatalError(thr, fatal_instance_field_mismatch);
317 }
318 }
319
320 static inline void
321 checkString(JavaThread* thr, jstring js)
322 {
323 ASSERT_OOPS_ALLOWED;
324 oop s = jniCheck::validate_object(thr, js);
325 if ((s == NULL) || !java_lang_String::is_instance(s))
326 ReportJNIFatalError(thr, fatal_non_string);
327 }
328
329 static inline arrayOop
330 check_is_array(JavaThread* thr, jarray jArray)
331 {
332 ASSERT_OOPS_ALLOWED;
333 arrayOop aOop;
334
335 aOop = (arrayOop)jniCheck::validate_object(thr, jArray);
336 if (aOop == NULL || !aOop->is_array()) {
337 ReportJNIFatalError(thr, fatal_non_array);
338 }
339 return aOop;
340 }
341
342 static inline arrayOop
343 check_is_primitive_array(JavaThread* thr, jarray jArray) {
344 arrayOop aOop = check_is_array(thr, jArray);
345
346 if (!aOop->is_typeArray()) {
347 ReportJNIFatalError(thr, fatal_prim_type_array_expected);
348 }
349 return aOop;
350 }
351
352 static inline void
353 check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)
354 {
355 BasicType array_type;
356 arrayOop aOop;
357
358 aOop = check_is_primitive_array(thr, jArray);
359 array_type = TypeArrayKlass::cast(aOop->klass())->element_type();
360 if (array_type != elementType) {
361 ReportJNIFatalError(thr, fatal_element_type_mismatch);
362 }
363 }
364
365 static inline void
366 check_is_obj_array(JavaThread* thr, jarray jArray) {
367 arrayOop aOop = check_is_array(thr, jArray);
368 if (!aOop->is_objArray()) {
369 ReportJNIFatalError(thr, fatal_object_array_expected);
370 }
371 }
372
373 /*
374 * Copy and wrap array elements for bounds checking.
375 * Remember the original elements (GuardedMemory::get_tag())
376 */
377 static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,
378 void* orig_elements) {
379 void* result;
380 IN_VM(
381 oop a = JNIHandles::resolve_non_null(array);
382 size_t len = arrayOop(a)->length() <<
383 TypeArrayKlass::cast(a->klass())->log2_element_size();
384 result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);
385 )
386 return result;
387 }
388
389 static void* check_wrapped_array(JavaThread* thr, const char* fn_name,
390 void* obj, void* carray, size_t* rsz) {
391 if (carray == NULL) {
392 tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj));
393 NativeReportJNIFatalError(thr, "Elements vector NULL");
394 }
395 GuardedMemory guarded(carray);
396 void* orig_result = guarded.get_tag();
397 if (!guarded.verify_guards()) {
398 tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds "
399 "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: "
400 PTR_FORMAT, p2i(obj), p2i(carray));
401 guarded.print_on(tty);
402 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
403 "failed bounds check");
404 }
405 if (orig_result == NULL) {
406 tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: "
407 PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray));
408 guarded.print_on(tty);
409 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
410 "unrecognized elements");
411 }
412 if (rsz != NULL) {
413 *rsz = guarded.get_user_size();
414 }
415 return orig_result;
416 }
417
418 static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,
419 void* obj, void* carray, jint mode) {
420 size_t sz;
421 void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);
422 switch (mode) {
423 // As we never make copies, mode 0 and JNI_COMMIT are the same.
424 case 0:
425 case JNI_COMMIT:
426 memcpy(orig_result, carray, sz);
427 break;
428 case JNI_ABORT:
429 break;
430 default:
431 tty->print_cr("%s: Unrecognized mode %i releasing array "
432 PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));
433 NativeReportJNIFatalError(thr, "Unrecognized array release mode");
434 }
435 // We always need to release the copy we made with GuardedMemory
436 GuardedMemory::free_copy(carray);
437 return orig_result;
438 }
439
440 oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {
441 if ((obj != NULL) && (JNIHandles::handle_type(thr, obj) != JNIInvalidRefType)) {
442 ASSERT_OOPS_ALLOWED;
443 return JNIHandles::resolve_external_guard(obj);
444 }
445 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
446 return NULL;
447 }
448
449
450 Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) {
451 ASSERT_OOPS_ALLOWED;
452 // do the fast jmethodID check first
453 Method* moop = Method::checked_resolve_jmethod_id(method_id);
454 if (moop == NULL) {
455 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
456 }
457 // jmethodIDs are supposed to be weak handles in the class loader data,
458 // but that can be expensive so check it last
459 else if (!Method::is_method_id(method_id)) {
460 ReportJNIFatalError(thr, fatal_non_weak_method);
461 }
462 return moop;
463 }
464
465
466 oop jniCheck::validate_object(JavaThread* thr, jobject obj) {
467 if (obj == NULL) return NULL;
468 ASSERT_OOPS_ALLOWED;
469 oop oopObj = jniCheck::validate_handle(thr, obj);
470 if (oopObj == NULL) {
471 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
472 }
473 return oopObj;
474 }
475
476 // Warn if a class descriptor is in decorated form; class descriptors
477 // passed to JNI findClass should not be decorated unless they are
478 // array descriptors.
479 void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {
480 if (name == NULL) return; // implementation accepts NULL so just return
481
482 size_t len = strlen(name);
483
484 if (len >= 2 &&
485 name[0] == JVM_SIGNATURE_CLASS && // 'L'
486 name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';'
487 char msg[JVM_MAXPATHLEN];
488 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s",
489 warn_bad_class_descriptor1, name, warn_bad_class_descriptor2);
490 ReportJNIWarning(thr, msg);
491 }
492 }
493
494 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {
495 ASSERT_OOPS_ALLOWED;
496 oop mirror = jniCheck::validate_handle(thr, clazz);
497 if (mirror == NULL) {
498 ReportJNIFatalError(thr, fatal_received_null_class);
499 }
500
501 if (mirror->klass() != SystemDictionary::Class_klass()) {
502 ReportJNIFatalError(thr, fatal_class_not_a_class);
503 }
504
505 Klass* k = java_lang_Class::as_Klass(mirror);
506 // Make allowances for primitive classes ...
507 if (!(k != NULL || (allow_primitive && java_lang_Class::is_primitive(mirror)))) {
508 ReportJNIFatalError(thr, fatal_class_not_a_class);
509 }
510 return k;
511 }
512
513 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {
514 ASSERT_OOPS_ALLOWED;
515 assert(klass != NULL, "klass argument must have a value");
516
517 if (!klass->is_instance_klass() ||
518 !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) {
519 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);
520 }
521 }
522
523 void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) {
524 /* validate the object being passed */
525 ASSERT_OOPS_ALLOWED;
526 jniCheck::validate_jmethod_id(thr, method_id);
527 jniCheck::validate_object(thr, obj);
528 }
529
530 void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) {
531 /* validate the class being passed */
532 ASSERT_OOPS_ALLOWED;
533 jniCheck::validate_jmethod_id(thr, method_id);
534 jniCheck::validate_class(thr, clazz, false);
535 }
536
537
538 /*
539 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
540 */
541
542 JNI_ENTRY_CHECKED(jclass,
543 checked_jni_DefineClass(JNIEnv *env,
544 const char *name,
545 jobject loader,
546 const jbyte *buf,
547 jsize len))
548 functionEnter(thr);
549 IN_VM(
550 jniCheck::validate_object(thr, loader);
551 )
552 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
553 functionExit(thr);
554 return result;
555 JNI_END
556
557 JNI_ENTRY_CHECKED(jclass,
558 checked_jni_FindClass(JNIEnv *env,
559 const char *name))
560 functionEnter(thr);
561 IN_VM(
562 jniCheck::validate_class_descriptor(thr, name);
563 )
564 jclass result = UNCHECKED()->FindClass(env, name);
565 functionExit(thr);
566 return result;
567 JNI_END
568
569 JNI_ENTRY_CHECKED(jmethodID,
570 checked_jni_FromReflectedMethod(JNIEnv *env,
571 jobject method))
572 functionEnter(thr);
573 IN_VM(
574 jniCheck::validate_object(thr, method);
575 )
576 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
577 functionExit(thr);
578 return result;
579 JNI_END
580
581 JNI_ENTRY_CHECKED(jfieldID,
582 checked_jni_FromReflectedField(JNIEnv *env,
583 jobject field))
584 functionEnter(thr);
585 IN_VM(
586 jniCheck::validate_object(thr, field);
587 )
588 jfieldID result = UNCHECKED()->FromReflectedField(env, field);
589 functionExit(thr);
590 return result;
591 JNI_END
592
593 JNI_ENTRY_CHECKED(jobject,
594 checked_jni_ToReflectedMethod(JNIEnv *env,
595 jclass cls,
596 jmethodID methodID,
597 jboolean isStatic))
598 functionEnter(thr);
599 IN_VM(
600 jniCheck::validate_class(thr, cls, false);
601 jniCheck::validate_jmethod_id(thr, methodID);
602 )
603 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
604 isStatic);
605 functionExit(thr);
606 return result;
607 JNI_END
608
609 JNI_ENTRY_CHECKED(jclass,
610 checked_jni_GetSuperclass(JNIEnv *env,
611 jclass sub))
612 functionEnter(thr);
613 IN_VM(
614 jniCheck::validate_class(thr, sub, true);
615 )
616 jclass result = UNCHECKED()->GetSuperclass(env, sub);
617 functionExit(thr);
618 return result;
619 JNI_END
620
621 JNI_ENTRY_CHECKED(jboolean,
622 checked_jni_IsAssignableFrom(JNIEnv *env,
623 jclass sub,
624 jclass sup))
625 functionEnter(thr);
626 IN_VM(
627 jniCheck::validate_class(thr, sub, true);
628 jniCheck::validate_class(thr, sup, true);
629 )
630 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
631 functionExit(thr);
632 return result;
633 JNI_END
634
635 JNI_ENTRY_CHECKED(jobject,
636 checked_jni_ToReflectedField(JNIEnv *env,
637 jclass cls,
638 jfieldID fieldID,
639 jboolean isStatic))
640 functionEnter(thr);
641 IN_VM(
642 jniCheck::validate_class(thr, cls, false);
643 )
644 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
645 isStatic);
646 functionExit(thr);
647 return result;
648 JNI_END
649
650 JNI_ENTRY_CHECKED(jint,
651 checked_jni_Throw(JNIEnv *env,
652 jthrowable obj))
653 functionEnter(thr);
654 IN_VM(
655 oop oopObj = jniCheck::validate_object(thr, obj);
656 if (oopObj == NULL) {
657 // Unchecked Throw tolerates a NULL obj, so just warn
658 ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
659 } else {
660 jniCheck::validate_throwable_klass(thr, oopObj->klass());
661 }
662 )
663 jint result = UNCHECKED()->Throw(env, obj);
664 functionExit(thr);
665 return result;
666 JNI_END
667
668 JNI_ENTRY_CHECKED(jint,
669 checked_jni_ThrowNew(JNIEnv *env,
670 jclass clazz,
671 const char *msg))
672 functionEnter(thr);
673 IN_VM(
674 Klass* k = jniCheck::validate_class(thr, clazz, false);
675 assert(k != NULL, "validate_class shouldn't return NULL Klass*");
676 jniCheck::validate_throwable_klass(thr, k);
677 )
678 jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
679 functionExit(thr);
680 return result;
681 JNI_END
682
683 JNI_ENTRY_CHECKED(jthrowable,
684 checked_jni_ExceptionOccurred(JNIEnv *env))
685 thr->clear_pending_jni_exception_check();
686 functionEnterExceptionAllowed(thr);
687 jthrowable result = UNCHECKED()->ExceptionOccurred(env);
688 functionExit(thr);
689 return result;
690 JNI_END
691
692 JNI_ENTRY_CHECKED(void,
693 checked_jni_ExceptionDescribe(JNIEnv *env))
694 functionEnterExceptionAllowed(thr);
695 UNCHECKED()->ExceptionDescribe(env);
696 functionExit(thr);
697 JNI_END
698
699 JNI_ENTRY_CHECKED(void,
700 checked_jni_ExceptionClear(JNIEnv *env))
701 thr->clear_pending_jni_exception_check();
702 functionEnterExceptionAllowed(thr);
703 UNCHECKED()->ExceptionClear(env);
704 functionExit(thr);
705 JNI_END
706
707 JNI_ENTRY_CHECKED(void,
708 checked_jni_FatalError(JNIEnv *env,
709 const char *msg))
710 thr->clear_pending_jni_exception_check();
711 functionEnter(thr);
712 UNCHECKED()->FatalError(env, msg);
713 functionExit(thr);
714 JNI_END
715
716 JNI_ENTRY_CHECKED(jint,
717 checked_jni_PushLocalFrame(JNIEnv *env,
718 jint capacity))
719 functionEnterExceptionAllowed(thr);
720 if (capacity < 0)
721 NativeReportJNIFatalError(thr, "negative capacity");
722 jint result = UNCHECKED()->PushLocalFrame(env, capacity);
723 if (result == JNI_OK) {
724 add_planned_handle_capacity(thr->active_handles(), capacity);
725 }
726 functionExit(thr);
727 return result;
728 JNI_END
729
730 JNI_ENTRY_CHECKED(jobject,
731 checked_jni_PopLocalFrame(JNIEnv *env,
732 jobject result))
733 functionEnterExceptionAllowed(thr);
734 jobject res = UNCHECKED()->PopLocalFrame(env, result);
735 functionExit(thr);
736 return res;
737 JNI_END
738
739 JNI_ENTRY_CHECKED(jobject,
740 checked_jni_NewGlobalRef(JNIEnv *env,
741 jobject lobj))
742 functionEnter(thr);
743 IN_VM(
744 if (lobj != NULL) {
745 jniCheck::validate_handle(thr, lobj);
746 }
747 )
748 jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
749 functionExit(thr);
750 return result;
751 JNI_END
752
753 JNI_ENTRY_CHECKED(void,
754 checked_jni_DeleteGlobalRef(JNIEnv *env,
755 jobject gref))
756 functionEnterExceptionAllowed(thr);
757 IN_VM(
758 jniCheck::validate_object(thr, gref);
759 if (gref && !JNIHandles::is_global_handle(gref)) {
760 ReportJNIFatalError(thr,
761 "Invalid global JNI handle passed to DeleteGlobalRef");
762 }
763 )
764 UNCHECKED()->DeleteGlobalRef(env,gref);
765 functionExit(thr);
766 JNI_END
767
768 JNI_ENTRY_CHECKED(void,
769 checked_jni_DeleteLocalRef(JNIEnv *env,
770 jobject obj))
771 functionEnterExceptionAllowed(thr);
772 IN_VM(
773 jniCheck::validate_object(thr, obj);
774 if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
775 JNIHandles::is_frame_handle(thr, obj)))
776 ReportJNIFatalError(thr,
777 "Invalid local JNI handle passed to DeleteLocalRef");
778 )
779 UNCHECKED()->DeleteLocalRef(env, obj);
780 functionExit(thr);
781 JNI_END
782
783 JNI_ENTRY_CHECKED(jboolean,
784 checked_jni_IsSameObject(JNIEnv *env,
785 jobject obj1,
786 jobject obj2))
787 functionEnterExceptionAllowed(thr);
788 IN_VM(
789 /* This JNI function can be used to compare weak global references
790 * to NULL objects. If the handles are valid, but contain NULL,
791 * then don't attempt to validate the object.
792 */
793 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
794 jniCheck::validate_object(thr, obj1);
795 }
796 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
797 jniCheck::validate_object(thr, obj2);
798 }
799 )
800 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
801 functionExit(thr);
802 return result;
803 JNI_END
804
805 JNI_ENTRY_CHECKED(jobject,
806 checked_jni_NewLocalRef(JNIEnv *env,
807 jobject ref))
808 functionEnter(thr);
809 IN_VM(
810 if (ref != NULL) {
811 jniCheck::validate_handle(thr, ref);
812 }
813 )
814 jobject result = UNCHECKED()->NewLocalRef(env, ref);
815 functionExit(thr);
816 return result;
817 JNI_END
818
819 JNI_ENTRY_CHECKED(jint,
820 checked_jni_EnsureLocalCapacity(JNIEnv *env,
821 jint capacity))
822 functionEnter(thr);
823 if (capacity < 0) {
824 NativeReportJNIFatalError(thr, "negative capacity");
825 }
826 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
827 if (result == JNI_OK) {
828 // increase local ref capacity if needed
829 if ((size_t)capacity > thr->active_handles()->get_planned_capacity()) {
830 add_planned_handle_capacity(thr->active_handles(), capacity);
831 }
832 }
833 functionExit(thr);
834 return result;
835 JNI_END
836
837 JNI_ENTRY_CHECKED(jobject,
838 checked_jni_AllocObject(JNIEnv *env,
839 jclass clazz))
840 functionEnter(thr);
841 IN_VM(
842 jniCheck::validate_class(thr, clazz, false);
843 )
844 jobject result = UNCHECKED()->AllocObject(env,clazz);
845 functionExit(thr);
846 return result;
847 JNI_END
848
849 JNI_ENTRY_CHECKED(jobject,
850 checked_jni_NewObject(JNIEnv *env,
851 jclass clazz,
852 jmethodID methodID,
853 ...))
854 functionEnter(thr);
855 va_list args;
856 IN_VM(
857 jniCheck::validate_class(thr, clazz, false);
858 jniCheck::validate_jmethod_id(thr, methodID);
859 )
860 va_start(args, methodID);
861 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
862 va_end(args);
863 functionExit(thr);
864 return result;
865 JNI_END
866
867 JNI_ENTRY_CHECKED(jobject,
868 checked_jni_NewObjectV(JNIEnv *env,
869 jclass clazz,
870 jmethodID methodID,
871 va_list args))
872 functionEnter(thr);
873 IN_VM(
874 jniCheck::validate_class(thr, clazz, false);
875 jniCheck::validate_jmethod_id(thr, methodID);
876 )
877 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
878 functionExit(thr);
879 return result;
880 JNI_END
881
882 JNI_ENTRY_CHECKED(jobject,
883 checked_jni_NewObjectA(JNIEnv *env,
884 jclass clazz,
885 jmethodID methodID,
886 const jvalue *args))
887 functionEnter(thr);
888 IN_VM(
889 jniCheck::validate_class(thr, clazz, false);
890 jniCheck::validate_jmethod_id(thr, methodID);
891 )
892 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
893 functionExit(thr);
894 return result;
895 JNI_END
896
897 JNI_ENTRY_CHECKED(jclass,
898 checked_jni_GetObjectClass(JNIEnv *env,
899 jobject obj))
900 functionEnter(thr);
901 IN_VM(
902 jniCheck::validate_object(thr, obj);
903 )
904 jclass result = UNCHECKED()->GetObjectClass(env,obj);
905 functionExit(thr);
906 return result;
907 JNI_END
908
909 JNI_ENTRY_CHECKED(jboolean,
910 checked_jni_IsInstanceOf(JNIEnv *env,
911 jobject obj,
912 jclass clazz))
913 functionEnter(thr);
914 IN_VM(
915 jniCheck::validate_object(thr, obj);
916 jniCheck::validate_class(thr, clazz, true);
917 )
918 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
919 functionExit(thr);
920 return result;
921 JNI_END
922
923 JNI_ENTRY_CHECKED(jmethodID,
924 checked_jni_GetMethodID(JNIEnv *env,
925 jclass clazz,
926 const char *name,
927 const char *sig))
928 functionEnter(thr);
929 IN_VM(
930 jniCheck::validate_class(thr, clazz, false);
931 )
932 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
933 functionExit(thr);
934 return result;
935 JNI_END
936
937 #define WRAPPER_CallMethod(ResultType, Result) \
938 JNI_ENTRY_CHECKED(ResultType, \
939 checked_jni_Call##Result##Method(JNIEnv *env, \
940 jobject obj, \
941 jmethodID methodID, \
942 ...)) \
943 functionEnter(thr); \
944 va_list args; \
945 IN_VM( \
946 jniCheck::validate_call_object(thr, obj, methodID); \
947 ) \
948 va_start(args,methodID); \
949 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
950 args); \
951 va_end(args); \
952 thr->set_pending_jni_exception_check("Call"#Result"Method"); \
953 functionExit(thr); \
954 return result; \
955 JNI_END \
956 \
957 JNI_ENTRY_CHECKED(ResultType, \
958 checked_jni_Call##Result##MethodV(JNIEnv *env, \
959 jobject obj, \
960 jmethodID methodID, \
961 va_list args)) \
962 functionEnter(thr); \
963 IN_VM(\
964 jniCheck::validate_call_object(thr, obj, methodID); \
965 ) \
966 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
967 args); \
968 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
969 functionExit(thr); \
970 return result; \
971 JNI_END \
972 \
973 JNI_ENTRY_CHECKED(ResultType, \
974 checked_jni_Call##Result##MethodA(JNIEnv *env, \
975 jobject obj, \
976 jmethodID methodID, \
977 const jvalue * args)) \
978 functionEnter(thr); \
979 IN_VM( \
980 jniCheck::validate_call_object(thr, obj, methodID); \
981 ) \
982 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
983 args); \
984 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
985 functionExit(thr); \
986 return result; \
987 JNI_END
988
989 WRAPPER_CallMethod(jobject,Object)
990 WRAPPER_CallMethod(jboolean,Boolean)
991 WRAPPER_CallMethod(jbyte,Byte)
992 WRAPPER_CallMethod(jshort,Short)
993 WRAPPER_CallMethod(jchar,Char)
994 WRAPPER_CallMethod(jint,Int)
995 WRAPPER_CallMethod(jlong,Long)
996 WRAPPER_CallMethod(jfloat,Float)
997 WRAPPER_CallMethod(jdouble,Double)
998
999 JNI_ENTRY_CHECKED(void,
1000 checked_jni_CallVoidMethod(JNIEnv *env, \
1001 jobject obj, \
1002 jmethodID methodID, \
1003 ...))
1004 functionEnter(thr);
1005 va_list args;
1006 IN_VM(
1007 jniCheck::validate_call_object(thr, obj, methodID);
1008 )
1009 va_start(args,methodID);
1010 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1011 va_end(args);
1012 thr->set_pending_jni_exception_check("CallVoidMethod");
1013 functionExit(thr);
1014 JNI_END
1015
1016 JNI_ENTRY_CHECKED(void,
1017 checked_jni_CallVoidMethodV(JNIEnv *env,
1018 jobject obj,
1019 jmethodID methodID,
1020 va_list args))
1021 functionEnter(thr);
1022 IN_VM(
1023 jniCheck::validate_call_object(thr, obj, methodID);
1024 )
1025 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1026 thr->set_pending_jni_exception_check("CallVoidMethodV");
1027 functionExit(thr);
1028 JNI_END
1029
1030 JNI_ENTRY_CHECKED(void,
1031 checked_jni_CallVoidMethodA(JNIEnv *env,
1032 jobject obj,
1033 jmethodID methodID,
1034 const jvalue * args))
1035 functionEnter(thr);
1036 IN_VM(
1037 jniCheck::validate_call_object(thr, obj, methodID);
1038 )
1039 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1040 thr->set_pending_jni_exception_check("CallVoidMethodA");
1041 functionExit(thr);
1042 JNI_END
1043
1044 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1045 JNI_ENTRY_CHECKED(ResultType, \
1046 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1047 jobject obj, \
1048 jclass clazz, \
1049 jmethodID methodID, \
1050 ...)) \
1051 functionEnter(thr); \
1052 va_list args; \
1053 IN_VM( \
1054 jniCheck::validate_call_object(thr, obj, methodID); \
1055 jniCheck::validate_call_class(thr, clazz, methodID); \
1056 ) \
1057 va_start(args,methodID); \
1058 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1059 obj, \
1060 clazz, \
1061 methodID,\
1062 args); \
1063 va_end(args); \
1064 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1065 functionExit(thr); \
1066 return result; \
1067 JNI_END \
1068 \
1069 JNI_ENTRY_CHECKED(ResultType, \
1070 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1071 jobject obj, \
1072 jclass clazz, \
1073 jmethodID methodID, \
1074 va_list args)) \
1075 functionEnter(thr); \
1076 IN_VM( \
1077 jniCheck::validate_call_object(thr, obj, methodID); \
1078 jniCheck::validate_call_class(thr, clazz, methodID); \
1079 ) \
1080 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1081 obj, \
1082 clazz, \
1083 methodID,\
1084 args); \
1085 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1086 functionExit(thr); \
1087 return result; \
1088 JNI_END \
1089 \
1090 JNI_ENTRY_CHECKED(ResultType, \
1091 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1092 jobject obj, \
1093 jclass clazz, \
1094 jmethodID methodID, \
1095 const jvalue * args)) \
1096 functionEnter(thr); \
1097 IN_VM( \
1098 jniCheck::validate_call_object(thr, obj, methodID); \
1099 jniCheck::validate_call_class(thr, clazz, methodID); \
1100 ) \
1101 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1102 obj, \
1103 clazz, \
1104 methodID,\
1105 args); \
1106 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1107 functionExit(thr); \
1108 return result; \
1109 JNI_END
1110
1111 WRAPPER_CallNonvirtualMethod(jobject,Object)
1112 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1113 WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1114 WRAPPER_CallNonvirtualMethod(jshort,Short)
1115 WRAPPER_CallNonvirtualMethod(jchar,Char)
1116 WRAPPER_CallNonvirtualMethod(jint,Int)
1117 WRAPPER_CallNonvirtualMethod(jlong,Long)
1118 WRAPPER_CallNonvirtualMethod(jfloat,Float)
1119 WRAPPER_CallNonvirtualMethod(jdouble,Double)
1120
1121 JNI_ENTRY_CHECKED(void,
1122 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1123 jobject obj,
1124 jclass clazz,
1125 jmethodID methodID,
1126 ...))
1127 functionEnter(thr);
1128 va_list args;
1129 IN_VM(
1130 jniCheck::validate_call_object(thr, obj, methodID);
1131 jniCheck::validate_call_class(thr, clazz, methodID);
1132 )
1133 va_start(args,methodID);
1134 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1135 va_end(args);
1136 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1137 functionExit(thr);
1138 JNI_END
1139
1140 JNI_ENTRY_CHECKED(void,
1141 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1142 jobject obj,
1143 jclass clazz,
1144 jmethodID methodID,
1145 va_list args))
1146 functionEnter(thr);
1147 IN_VM(
1148 jniCheck::validate_call_object(thr, obj, methodID);
1149 jniCheck::validate_call_class(thr, clazz, methodID);
1150 )
1151 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1152 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1153 functionExit(thr);
1154 JNI_END
1155
1156 JNI_ENTRY_CHECKED(void,
1157 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1158 jobject obj,
1159 jclass clazz,
1160 jmethodID methodID,
1161 const jvalue * args))
1162 functionEnter(thr);
1163 IN_VM(
1164 jniCheck::validate_call_object(thr, obj, methodID);
1165 jniCheck::validate_call_class(thr, clazz, methodID);
1166 )
1167 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1168 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1169 functionExit(thr);
1170 JNI_END
1171
1172 JNI_ENTRY_CHECKED(jfieldID,
1173 checked_jni_GetFieldID(JNIEnv *env,
1174 jclass clazz,
1175 const char *name,
1176 const char *sig))
1177 functionEnter(thr);
1178 IN_VM(
1179 jniCheck::validate_class(thr, clazz, false);
1180 )
1181 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1182 functionExit(thr);
1183 return result;
1184 JNI_END
1185
1186 #define WRAPPER_GetField(ReturnType,Result,FieldType) \
1187 JNI_ENTRY_CHECKED(ReturnType, \
1188 checked_jni_Get##Result##Field(JNIEnv *env, \
1189 jobject obj, \
1190 jfieldID fieldID)) \
1191 functionEnter(thr); \
1192 IN_VM( \
1193 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1194 ) \
1195 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1196 functionExit(thr); \
1197 return result; \
1198 JNI_END
1199
1200 WRAPPER_GetField(jobject, Object, T_OBJECT)
1201 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1202 WRAPPER_GetField(jbyte, Byte, T_BYTE)
1203 WRAPPER_GetField(jshort, Short, T_SHORT)
1204 WRAPPER_GetField(jchar, Char, T_CHAR)
1205 WRAPPER_GetField(jint, Int, T_INT)
1206 WRAPPER_GetField(jlong, Long, T_LONG)
1207 WRAPPER_GetField(jfloat, Float, T_FLOAT)
1208 WRAPPER_GetField(jdouble, Double, T_DOUBLE)
1209
1210 #define WRAPPER_SetField(ValueType,Result,FieldType) \
1211 JNI_ENTRY_CHECKED(void, \
1212 checked_jni_Set##Result##Field(JNIEnv *env, \
1213 jobject obj, \
1214 jfieldID fieldID, \
1215 ValueType val)) \
1216 functionEnter(thr); \
1217 IN_VM( \
1218 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1219 ) \
1220 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1221 functionExit(thr); \
1222 JNI_END
1223
1224 WRAPPER_SetField(jobject, Object, T_OBJECT)
1225 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1226 WRAPPER_SetField(jbyte, Byte, T_BYTE)
1227 WRAPPER_SetField(jshort, Short, T_SHORT)
1228 WRAPPER_SetField(jchar, Char, T_CHAR)
1229 WRAPPER_SetField(jint, Int, T_INT)
1230 WRAPPER_SetField(jlong, Long, T_LONG)
1231 WRAPPER_SetField(jfloat, Float, T_FLOAT)
1232 WRAPPER_SetField(jdouble, Double, T_DOUBLE)
1233
1234
1235 JNI_ENTRY_CHECKED(jmethodID,
1236 checked_jni_GetStaticMethodID(JNIEnv *env,
1237 jclass clazz,
1238 const char *name,
1239 const char *sig))
1240 functionEnter(thr);
1241 IN_VM(
1242 jniCheck::validate_class(thr, clazz, false);
1243 )
1244 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1245 functionExit(thr);
1246 return result;
1247 JNI_END
1248
1249 #define WRAPPER_CallStaticMethod(ReturnType,Result) \
1250 JNI_ENTRY_CHECKED(ReturnType, \
1251 checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1252 jclass clazz, \
1253 jmethodID methodID, \
1254 ...)) \
1255 functionEnter(thr); \
1256 va_list args; \
1257 IN_VM( \
1258 jniCheck::validate_jmethod_id(thr, methodID); \
1259 jniCheck::validate_class(thr, clazz, false); \
1260 ) \
1261 va_start(args,methodID); \
1262 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1263 clazz, \
1264 methodID, \
1265 args); \
1266 va_end(args); \
1267 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1268 functionExit(thr); \
1269 return result; \
1270 JNI_END \
1271 \
1272 JNI_ENTRY_CHECKED(ReturnType, \
1273 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1274 jclass clazz, \
1275 jmethodID methodID,\
1276 va_list args)) \
1277 functionEnter(thr); \
1278 IN_VM( \
1279 jniCheck::validate_jmethod_id(thr, methodID); \
1280 jniCheck::validate_class(thr, clazz, false); \
1281 ) \
1282 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1283 clazz, \
1284 methodID, \
1285 args); \
1286 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1287 functionExit(thr); \
1288 return result; \
1289 JNI_END \
1290 \
1291 JNI_ENTRY_CHECKED(ReturnType, \
1292 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1293 jclass clazz, \
1294 jmethodID methodID, \
1295 const jvalue *args)) \
1296 functionEnter(thr); \
1297 IN_VM( \
1298 jniCheck::validate_jmethod_id(thr, methodID); \
1299 jniCheck::validate_class(thr, clazz, false); \
1300 ) \
1301 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1302 clazz, \
1303 methodID, \
1304 args); \
1305 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1306 functionExit(thr); \
1307 return result; \
1308 JNI_END
1309
1310 WRAPPER_CallStaticMethod(jobject,Object)
1311 WRAPPER_CallStaticMethod(jboolean,Boolean)
1312 WRAPPER_CallStaticMethod(jbyte,Byte)
1313 WRAPPER_CallStaticMethod(jshort,Short)
1314 WRAPPER_CallStaticMethod(jchar,Char)
1315 WRAPPER_CallStaticMethod(jint,Int)
1316 WRAPPER_CallStaticMethod(jlong,Long)
1317 WRAPPER_CallStaticMethod(jfloat,Float)
1318 WRAPPER_CallStaticMethod(jdouble,Double)
1319
1320 JNI_ENTRY_CHECKED(void,
1321 checked_jni_CallStaticVoidMethod(JNIEnv *env,
1322 jclass cls,
1323 jmethodID methodID,
1324 ...))
1325 functionEnter(thr);
1326 va_list args;
1327 IN_VM(
1328 jniCheck::validate_jmethod_id(thr, methodID);
1329 jniCheck::validate_class(thr, cls, false);
1330 )
1331 va_start(args,methodID);
1332 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1333 va_end(args);
1334 thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1335 functionExit(thr);
1336 JNI_END
1337
1338 JNI_ENTRY_CHECKED(void,
1339 checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1340 jclass cls,
1341 jmethodID methodID,
1342 va_list args))
1343 functionEnter(thr);
1344 IN_VM(
1345 jniCheck::validate_jmethod_id(thr, methodID);
1346 jniCheck::validate_class(thr, cls, false);
1347 )
1348 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1349 thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1350 functionExit(thr);
1351 JNI_END
1352
1353 JNI_ENTRY_CHECKED(void,
1354 checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1355 jclass cls,
1356 jmethodID methodID,
1357 const jvalue * args))
1358 functionEnter(thr);
1359 IN_VM(
1360 jniCheck::validate_jmethod_id(thr, methodID);
1361 jniCheck::validate_class(thr, cls, false);
1362 )
1363 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1364 thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1365 functionExit(thr);
1366 JNI_END
1367
1368 JNI_ENTRY_CHECKED(jfieldID,
1369 checked_jni_GetStaticFieldID(JNIEnv *env,
1370 jclass clazz,
1371 const char *name,
1372 const char *sig))
1373 functionEnter(thr);
1374 IN_VM(
1375 jniCheck::validate_class(thr, clazz, false);
1376 )
1377 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1378 functionExit(thr);
1379 return result;
1380 JNI_END
1381
1382 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1383 JNI_ENTRY_CHECKED(ReturnType, \
1384 checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1385 jclass clazz, \
1386 jfieldID fieldID)) \
1387 functionEnter(thr); \
1388 IN_VM( \
1389 jniCheck::validate_class(thr, clazz, false); \
1390 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1391 ) \
1392 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1393 clazz, \
1394 fieldID); \
1395 functionExit(thr); \
1396 return result; \
1397 JNI_END
1398
1399 WRAPPER_GetStaticField(jobject, Object, T_OBJECT)
1400 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1401 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE)
1402 WRAPPER_GetStaticField(jshort, Short, T_SHORT)
1403 WRAPPER_GetStaticField(jchar, Char, T_CHAR)
1404 WRAPPER_GetStaticField(jint, Int, T_INT)
1405 WRAPPER_GetStaticField(jlong, Long, T_LONG)
1406 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT)
1407 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE)
1408
1409 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1410 JNI_ENTRY_CHECKED(void, \
1411 checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1412 jclass clazz, \
1413 jfieldID fieldID, \
1414 ValueType value)) \
1415 functionEnter(thr); \
1416 IN_VM( \
1417 jniCheck::validate_class(thr, clazz, false); \
1418 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1419 ) \
1420 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1421 functionExit(thr); \
1422 JNI_END
1423
1424 WRAPPER_SetStaticField(jobject, Object, T_OBJECT)
1425 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1426 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE)
1427 WRAPPER_SetStaticField(jshort, Short, T_SHORT)
1428 WRAPPER_SetStaticField(jchar, Char, T_CHAR)
1429 WRAPPER_SetStaticField(jint, Int, T_INT)
1430 WRAPPER_SetStaticField(jlong, Long, T_LONG)
1431 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT)
1432 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE)
1433
1434
1435 JNI_ENTRY_CHECKED(jstring,
1436 checked_jni_NewString(JNIEnv *env,
1437 const jchar *unicode,
1438 jsize len))
1439 functionEnter(thr);
1440 jstring result = UNCHECKED()->NewString(env,unicode,len);
1441 functionExit(thr);
1442 return result;
1443 JNI_END
1444
1445 JNI_ENTRY_CHECKED(jsize,
1446 checked_jni_GetStringLength(JNIEnv *env,
1447 jstring str))
1448 functionEnter(thr);
1449 IN_VM(
1450 checkString(thr, str);
1451 )
1452 jsize result = UNCHECKED()->GetStringLength(env,str);
1453 functionExit(thr);
1454 return result;
1455 JNI_END
1456
1457 // Arbitrary (but well-known) tag
1458 const void* STRING_TAG = (void*)0x47114711;
1459
1460 JNI_ENTRY_CHECKED(const jchar *,
1461 checked_jni_GetStringChars(JNIEnv *env,
1462 jstring str,
1463 jboolean *isCopy))
1464 functionEnter(thr);
1465 IN_VM(
1466 checkString(thr, str);
1467 )
1468 jchar* new_result = NULL;
1469 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1470 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1471 if (result != NULL) {
1472 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination
1473 len *= sizeof(jchar);
1474 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1475 if (new_result == NULL) {
1476 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1477 }
1478 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1479 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1480 FreeHeap((char*)result);
1481 }
1482 functionExit(thr);
1483 return new_result;
1484 JNI_END
1485
1486 JNI_ENTRY_CHECKED(void,
1487 checked_jni_ReleaseStringChars(JNIEnv *env,
1488 jstring str,
1489 const jchar *chars))
1490 functionEnterExceptionAllowed(thr);
1491 IN_VM(
1492 checkString(thr, str);
1493 )
1494 if (chars == NULL) {
1495 // still do the unchecked call to allow dtrace probes
1496 UNCHECKED()->ReleaseStringChars(env,str,chars);
1497 }
1498 else {
1499 GuardedMemory guarded((void*)chars);
1500 if (!guarded.verify_guards()) {
1501 tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1502 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1503 guarded.print_on(tty);
1504 NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1505 "release chars failed bounds check.");
1506 }
1507 if (guarded.get_tag() != STRING_TAG) {
1508 tty->print_cr("ReleaseStringChars: called on something not allocated "
1509 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1510 p2i(str), p2i(chars));
1511 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1512 "not allocated by GetStringChars");
1513 }
1514 UNCHECKED()->ReleaseStringChars(env, str,
1515 (const jchar*) guarded.release_for_freeing());
1516 }
1517 functionExit(thr);
1518 JNI_END
1519
1520 JNI_ENTRY_CHECKED(jstring,
1521 checked_jni_NewStringUTF(JNIEnv *env,
1522 const char *utf))
1523 functionEnter(thr);
1524 jstring result = UNCHECKED()->NewStringUTF(env,utf);
1525 functionExit(thr);
1526 return result;
1527 JNI_END
1528
1529 JNI_ENTRY_CHECKED(jsize,
1530 checked_jni_GetStringUTFLength(JNIEnv *env,
1531 jstring str))
1532 functionEnter(thr);
1533 IN_VM(
1534 checkString(thr, str);
1535 )
1536 jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1537 functionExit(thr);
1538 return result;
1539 JNI_END
1540
1541 // Arbitrary (but well-known) tag - different than GetStringChars
1542 const void* STRING_UTF_TAG = (void*) 0x48124812;
1543
1544 JNI_ENTRY_CHECKED(const char *,
1545 checked_jni_GetStringUTFChars(JNIEnv *env,
1546 jstring str,
1547 jboolean *isCopy))
1548 functionEnter(thr);
1549 IN_VM(
1550 checkString(thr, str);
1551 )
1552 char* new_result = NULL;
1553 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1554 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1555 if (result != NULL) {
1556 size_t len = strlen(result) + 1; // + 1 for NULL termination
1557 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1558 if (new_result == NULL) {
1559 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1560 }
1561 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1562 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1563 FreeHeap((char*)result);
1564 }
1565 functionExit(thr);
1566 return new_result;
1567 JNI_END
1568
1569 JNI_ENTRY_CHECKED(void,
1570 checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1571 jstring str,
1572 const char* chars))
1573 functionEnterExceptionAllowed(thr);
1574 IN_VM(
1575 checkString(thr, str);
1576 )
1577 if (chars == NULL) {
1578 // still do the unchecked call to allow dtrace probes
1579 UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1580 }
1581 else {
1582 GuardedMemory guarded((void*)chars);
1583 if (!guarded.verify_guards()) {
1584 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1585 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1586 guarded.print_on(tty);
1587 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1588 "release chars failed bounds check.");
1589 }
1590 if (guarded.get_tag() != STRING_UTF_TAG) {
1591 tty->print_cr("ReleaseStringUTFChars: called on something not "
1592 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1593 PTR_FORMAT, p2i(str), p2i(chars));
1594 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1595 "called on something not allocated by GetStringUTFChars");
1596 }
1597 UNCHECKED()->ReleaseStringUTFChars(env, str,
1598 (const char*) guarded.release_for_freeing());
1599 }
1600 functionExit(thr);
1601 JNI_END
1602
1603 JNI_ENTRY_CHECKED(jsize,
1604 checked_jni_GetArrayLength(JNIEnv *env,
1605 jarray array))
1606 functionEnter(thr);
1607 IN_VM(
1608 check_is_array(thr, array);
1609 )
1610 jsize result = UNCHECKED()->GetArrayLength(env,array);
1611 functionExit(thr);
1612 return result;
1613 JNI_END
1614
1615 JNI_ENTRY_CHECKED(jobjectArray,
1616 checked_jni_NewObjectArray(JNIEnv *env,
1617 jsize len,
1618 jclass clazz,
1619 jobject init))
1620 functionEnter(thr);
1621 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1622 functionExit(thr);
1623 return result;
1624 JNI_END
1625
1626 JNI_ENTRY_CHECKED(jobject,
1627 checked_jni_GetObjectArrayElement(JNIEnv *env,
1628 jobjectArray array,
1629 jsize index))
1630 functionEnter(thr);
1631 IN_VM(
1632 check_is_obj_array(thr, array);
1633 )
1634 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1635 functionExit(thr);
1636 return result;
1637 JNI_END
1638
1639 JNI_ENTRY_CHECKED(void,
1640 checked_jni_SetObjectArrayElement(JNIEnv *env,
1641 jobjectArray array,
1642 jsize index,
1643 jobject val))
1644 functionEnter(thr);
1645 IN_VM(
1646 check_is_obj_array(thr, array);
1647 )
1648 UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1649 functionExit(thr);
1650 JNI_END
1651
1652 #define WRAPPER_NewScalarArray(Return, Result) \
1653 JNI_ENTRY_CHECKED(Return, \
1654 checked_jni_New##Result##Array(JNIEnv *env, \
1655 jsize len)) \
1656 functionEnter(thr); \
1657 Return result = UNCHECKED()->New##Result##Array(env,len); \
1658 functionExit(thr); \
1659 return (Return) result; \
1660 JNI_END
1661
1662 WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1663 WRAPPER_NewScalarArray(jbyteArray, Byte)
1664 WRAPPER_NewScalarArray(jshortArray, Short)
1665 WRAPPER_NewScalarArray(jcharArray, Char)
1666 WRAPPER_NewScalarArray(jintArray, Int)
1667 WRAPPER_NewScalarArray(jlongArray, Long)
1668 WRAPPER_NewScalarArray(jfloatArray, Float)
1669 WRAPPER_NewScalarArray(jdoubleArray, Double)
1670
1671 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1672 JNI_ENTRY_CHECKED(ElementType *, \
1673 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1674 ElementType##Array array, \
1675 jboolean *isCopy)) \
1676 functionEnter(thr); \
1677 IN_VM( \
1678 check_primitive_array_type(thr, array, ElementTag); \
1679 ) \
1680 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1681 array, \
1682 isCopy); \
1683 if (result != NULL) { \
1684 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1685 } \
1686 functionExit(thr); \
1687 return result; \
1688 JNI_END
1689
1690 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1691 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte)
1692 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short)
1693 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char)
1694 WRAPPER_GetScalarArrayElements(T_INT, jint, Int)
1695 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long)
1696 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float)
1697 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double)
1698
1699 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1700 JNI_ENTRY_CHECKED(void, \
1701 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1702 ElementType##Array array, \
1703 ElementType *elems, \
1704 jint mode)) \
1705 functionEnterExceptionAllowed(thr); \
1706 IN_VM( \
1707 check_primitive_array_type(thr, array, ElementTag); \
1708 ASSERT_OOPS_ALLOWED; \
1709 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1710 ) \
1711 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1712 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \
1713 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1714 functionExit(thr); \
1715 JNI_END
1716
1717 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1718 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte)
1719 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short)
1720 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char)
1721 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int)
1722 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long)
1723 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float)
1724 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double)
1725
1726 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1727 JNI_ENTRY_CHECKED(void, \
1728 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1729 ElementType##Array array, \
1730 jsize start, \
1731 jsize len, \
1732 ElementType *buf)) \
1733 functionEnter(thr); \
1734 IN_VM( \
1735 check_primitive_array_type(thr, array, ElementTag); \
1736 ) \
1737 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1738 functionExit(thr); \
1739 JNI_END
1740
1741 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1742 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte)
1743 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short)
1744 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char)
1745 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int)
1746 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long)
1747 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float)
1748 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1749
1750 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1751 JNI_ENTRY_CHECKED(void, \
1752 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1753 ElementType##Array array, \
1754 jsize start, \
1755 jsize len, \
1756 const ElementType *buf)) \
1757 functionEnter(thr); \
1758 IN_VM( \
1759 check_primitive_array_type(thr, array, ElementTag); \
1760 ) \
1761 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1762 functionExit(thr); \
1763 JNI_END
1764
1765 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1766 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte)
1767 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short)
1768 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char)
1769 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int)
1770 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long)
1771 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float)
1772 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1773
1774 JNI_ENTRY_CHECKED(jint,
1775 checked_jni_RegisterNatives(JNIEnv *env,
1776 jclass clazz,
1777 const JNINativeMethod *methods,
1778 jint nMethods))
1779 functionEnter(thr);
1780 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1781 functionExit(thr);
1782 return result;
1783 JNI_END
1784
1785 JNI_ENTRY_CHECKED(jint,
1786 checked_jni_UnregisterNatives(JNIEnv *env,
1787 jclass clazz))
1788 functionEnter(thr);
1789 jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1790 functionExit(thr);
1791 return result;
1792 JNI_END
1793
1794 JNI_ENTRY_CHECKED(jint,
1795 checked_jni_MonitorEnter(JNIEnv *env,
1796 jobject obj))
1797 functionEnter(thr);
1798 IN_VM(
1799 jniCheck::validate_object(thr, obj);
1800 )
1801 jint result = UNCHECKED()->MonitorEnter(env,obj);
1802 functionExit(thr);
1803 return result;
1804 JNI_END
1805
1806 JNI_ENTRY_CHECKED(jint,
1807 checked_jni_MonitorExit(JNIEnv *env,
1808 jobject obj))
1809 functionEnterExceptionAllowed(thr);
1810 IN_VM(
1811 jniCheck::validate_object(thr, obj);
1812 )
1813 jint result = UNCHECKED()->MonitorExit(env,obj);
1814 functionExit(thr);
1815 return result;
1816 JNI_END
1817
1818 JNI_ENTRY_CHECKED(jint,
1819 checked_jni_GetJavaVM(JNIEnv *env,
1820 JavaVM **vm))
1821 functionEnter(thr);
1822 jint result = UNCHECKED()->GetJavaVM(env,vm);
1823 functionExit(thr);
1824 return result;
1825 JNI_END
1826
1827 JNI_ENTRY_CHECKED(void,
1828 checked_jni_GetStringRegion(JNIEnv *env,
1829 jstring str,
1830 jsize start,
1831 jsize len,
1832 jchar *buf))
1833 functionEnter(thr);
1834 IN_VM(
1835 checkString(thr, str);
1836 )
1837 UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1838 functionExit(thr);
1839 JNI_END
1840
1841 JNI_ENTRY_CHECKED(void,
1842 checked_jni_GetStringUTFRegion(JNIEnv *env,
1843 jstring str,
1844 jsize start,
1845 jsize len,
1846 char *buf))
1847 functionEnter(thr);
1848 IN_VM(
1849 checkString(thr, str);
1850 )
1851 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1852 functionExit(thr);
1853 JNI_END
1854
1855 JNI_ENTRY_CHECKED(void *,
1856 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1857 jarray array,
1858 jboolean *isCopy))
1859 functionEnterCritical(thr);
1860 IN_VM(
1861 check_is_primitive_array(thr, array);
1862 )
1863 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1864 if (result != NULL) {
1865 result = check_jni_wrap_copy_array(thr, array, result);
1866 }
1867 functionExit(thr);
1868 return result;
1869 JNI_END
1870
1871 JNI_ENTRY_CHECKED(void,
1872 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1873 jarray array,
1874 void *carray,
1875 jint mode))
1876 functionEnterCriticalExceptionAllowed(thr);
1877 IN_VM(
1878 check_is_primitive_array(thr, array);
1879 )
1880 // Check the element array...
1881 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode);
1882 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1883 functionExit(thr);
1884 JNI_END
1885
1886 JNI_ENTRY_CHECKED(const jchar*,
1887 checked_jni_GetStringCritical(JNIEnv *env,
1888 jstring string,
1889 jboolean *isCopy))
1890 functionEnterCritical(thr);
1891 IN_VM(
1892 checkString(thr, string);
1893 )
1894 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1895 functionExit(thr);
1896 return result;
1897 JNI_END
1898
1899 JNI_ENTRY_CHECKED(void,
1900 checked_jni_ReleaseStringCritical(JNIEnv *env,
1901 jstring str,
1902 const jchar *chars))
1903 functionEnterCriticalExceptionAllowed(thr);
1904 IN_VM(
1905 checkString(thr, str);
1906 )
1907 /* The Hotspot JNI code does not use the parameters, so just check the
1908 * string parameter as a minor sanity check
1909 */
1910 UNCHECKED()->ReleaseStringCritical(env, str, chars);
1911 functionExit(thr);
1912 JNI_END
1913
1914 JNI_ENTRY_CHECKED(jweak,
1915 checked_jni_NewWeakGlobalRef(JNIEnv *env,
1916 jobject obj))
1917 functionEnter(thr);
1918 IN_VM(
1919 if (obj != NULL) {
1920 jniCheck::validate_handle(thr, obj);
1921 }
1922 )
1923 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1924 functionExit(thr);
1925 return result;
1926 JNI_END
1927
1928 JNI_ENTRY_CHECKED(void,
1929 checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1930 jweak ref))
1931 functionEnterExceptionAllowed(thr);
1932 UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1933 functionExit(thr);
1934 JNI_END
1935
1936 JNI_ENTRY_CHECKED(jboolean,
1937 checked_jni_ExceptionCheck(JNIEnv *env))
1938 thr->clear_pending_jni_exception_check();
1939 functionEnterExceptionAllowed(thr);
1940 jboolean result = UNCHECKED()->ExceptionCheck(env);
1941 functionExit(thr);
1942 return result;
1943 JNI_END
1944
1945 JNI_ENTRY_CHECKED(jobject,
1946 checked_jni_NewDirectByteBuffer(JNIEnv *env,
1947 void *address,
1948 jlong capacity))
1949 functionEnter(thr);
1950 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1951 functionExit(thr);
1952 return result;
1953 JNI_END
1954
1955 JNI_ENTRY_CHECKED(void *,
1956 checked_jni_GetDirectBufferAddress(JNIEnv *env,
1957 jobject buf))
1958 functionEnter(thr);
1959 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1960 functionExit(thr);
1961 return result;
1962 JNI_END
1963
1964 JNI_ENTRY_CHECKED(jlong,
1965 checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1966 jobject buf))
1967 functionEnter(thr);
1968 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1969 functionExit(thr);
1970 return result;
1971 JNI_END
1972
1973 JNI_ENTRY_CHECKED(jobjectRefType,
1974 checked_jni_GetObjectRefType(JNIEnv *env,
1975 jobject obj))
1976 functionEnter(thr);
1977 /* validate the object being passed */
1978 IN_VM(
1979 jniCheck::validate_object(thr, obj);
1980 )
1981 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1982 functionExit(thr);
1983 return result;
1984 JNI_END
1985
1986
1987 JNI_ENTRY_CHECKED(jint,
1988 checked_jni_GetVersion(JNIEnv *env))
1989 functionEnter(thr);
1990 jint result = UNCHECKED()->GetVersion(env);
1991 functionExit(thr);
1992 return result;
1993 JNI_END
1994
1995 JNI_ENTRY_CHECKED(jobject,
1996 checked_jni_GetModule(JNIEnv *env,
1997 jclass clazz))
1998 functionEnter(thr);
1999 jobject result = UNCHECKED()->GetModule(env,clazz);
2000 functionExit(thr);
2001 return result;
2002 JNI_END
2003
2004 /*
2005 * Structure containing all checked jni functions
2006 */
2007 struct JNINativeInterface_ checked_jni_NativeInterface = {
2008 NULL,
2009 NULL,
2010 NULL,
2011
2012 NULL,
2013
2014 checked_jni_GetVersion,
2015
2016 checked_jni_DefineClass,
2017 checked_jni_FindClass,
2018
2019 checked_jni_FromReflectedMethod,
2020 checked_jni_FromReflectedField,
2021
2022 checked_jni_ToReflectedMethod,
2023
2024 checked_jni_GetSuperclass,
2025 checked_jni_IsAssignableFrom,
2026
2027 checked_jni_ToReflectedField,
2028
2029 checked_jni_Throw,
2030 checked_jni_ThrowNew,
2031 checked_jni_ExceptionOccurred,
2032 checked_jni_ExceptionDescribe,
2033 checked_jni_ExceptionClear,
2034 checked_jni_FatalError,
2035
2036 checked_jni_PushLocalFrame,
2037 checked_jni_PopLocalFrame,
2038
2039 checked_jni_NewGlobalRef,
2040 checked_jni_DeleteGlobalRef,
2041 checked_jni_DeleteLocalRef,
2042 checked_jni_IsSameObject,
2043
2044 checked_jni_NewLocalRef,
2045 checked_jni_EnsureLocalCapacity,
2046
2047 checked_jni_AllocObject,
2048 checked_jni_NewObject,
2049 checked_jni_NewObjectV,
2050 checked_jni_NewObjectA,
2051
2052 checked_jni_GetObjectClass,
2053 checked_jni_IsInstanceOf,
2054
2055 checked_jni_GetMethodID,
2056
2057 checked_jni_CallObjectMethod,
2058 checked_jni_CallObjectMethodV,
2059 checked_jni_CallObjectMethodA,
2060 checked_jni_CallBooleanMethod,
2061 checked_jni_CallBooleanMethodV,
2062 checked_jni_CallBooleanMethodA,
2063 checked_jni_CallByteMethod,
2064 checked_jni_CallByteMethodV,
2065 checked_jni_CallByteMethodA,
2066 checked_jni_CallCharMethod,
2067 checked_jni_CallCharMethodV,
2068 checked_jni_CallCharMethodA,
2069 checked_jni_CallShortMethod,
2070 checked_jni_CallShortMethodV,
2071 checked_jni_CallShortMethodA,
2072 checked_jni_CallIntMethod,
2073 checked_jni_CallIntMethodV,
2074 checked_jni_CallIntMethodA,
2075 checked_jni_CallLongMethod,
2076 checked_jni_CallLongMethodV,
2077 checked_jni_CallLongMethodA,
2078 checked_jni_CallFloatMethod,
2079 checked_jni_CallFloatMethodV,
2080 checked_jni_CallFloatMethodA,
2081 checked_jni_CallDoubleMethod,
2082 checked_jni_CallDoubleMethodV,
2083 checked_jni_CallDoubleMethodA,
2084 checked_jni_CallVoidMethod,
2085 checked_jni_CallVoidMethodV,
2086 checked_jni_CallVoidMethodA,
2087
2088 checked_jni_CallNonvirtualObjectMethod,
2089 checked_jni_CallNonvirtualObjectMethodV,
2090 checked_jni_CallNonvirtualObjectMethodA,
2091 checked_jni_CallNonvirtualBooleanMethod,
2092 checked_jni_CallNonvirtualBooleanMethodV,
2093 checked_jni_CallNonvirtualBooleanMethodA,
2094 checked_jni_CallNonvirtualByteMethod,
2095 checked_jni_CallNonvirtualByteMethodV,
2096 checked_jni_CallNonvirtualByteMethodA,
2097 checked_jni_CallNonvirtualCharMethod,
2098 checked_jni_CallNonvirtualCharMethodV,
2099 checked_jni_CallNonvirtualCharMethodA,
2100 checked_jni_CallNonvirtualShortMethod,
2101 checked_jni_CallNonvirtualShortMethodV,
2102 checked_jni_CallNonvirtualShortMethodA,
2103 checked_jni_CallNonvirtualIntMethod,
2104 checked_jni_CallNonvirtualIntMethodV,
2105 checked_jni_CallNonvirtualIntMethodA,
2106 checked_jni_CallNonvirtualLongMethod,
2107 checked_jni_CallNonvirtualLongMethodV,
2108 checked_jni_CallNonvirtualLongMethodA,
2109 checked_jni_CallNonvirtualFloatMethod,
2110 checked_jni_CallNonvirtualFloatMethodV,
2111 checked_jni_CallNonvirtualFloatMethodA,
2112 checked_jni_CallNonvirtualDoubleMethod,
2113 checked_jni_CallNonvirtualDoubleMethodV,
2114 checked_jni_CallNonvirtualDoubleMethodA,
2115 checked_jni_CallNonvirtualVoidMethod,
2116 checked_jni_CallNonvirtualVoidMethodV,
2117 checked_jni_CallNonvirtualVoidMethodA,
2118
2119 checked_jni_GetFieldID,
2120
2121 checked_jni_GetObjectField,
2122 checked_jni_GetBooleanField,
2123 checked_jni_GetByteField,
2124 checked_jni_GetCharField,
2125 checked_jni_GetShortField,
2126 checked_jni_GetIntField,
2127 checked_jni_GetLongField,
2128 checked_jni_GetFloatField,
2129 checked_jni_GetDoubleField,
2130
2131 checked_jni_SetObjectField,
2132 checked_jni_SetBooleanField,
2133 checked_jni_SetByteField,
2134 checked_jni_SetCharField,
2135 checked_jni_SetShortField,
2136 checked_jni_SetIntField,
2137 checked_jni_SetLongField,
2138 checked_jni_SetFloatField,
2139 checked_jni_SetDoubleField,
2140
2141 checked_jni_GetStaticMethodID,
2142
2143 checked_jni_CallStaticObjectMethod,
2144 checked_jni_CallStaticObjectMethodV,
2145 checked_jni_CallStaticObjectMethodA,
2146 checked_jni_CallStaticBooleanMethod,
2147 checked_jni_CallStaticBooleanMethodV,
2148 checked_jni_CallStaticBooleanMethodA,
2149 checked_jni_CallStaticByteMethod,
2150 checked_jni_CallStaticByteMethodV,
2151 checked_jni_CallStaticByteMethodA,
2152 checked_jni_CallStaticCharMethod,
2153 checked_jni_CallStaticCharMethodV,
2154 checked_jni_CallStaticCharMethodA,
2155 checked_jni_CallStaticShortMethod,
2156 checked_jni_CallStaticShortMethodV,
2157 checked_jni_CallStaticShortMethodA,
2158 checked_jni_CallStaticIntMethod,
2159 checked_jni_CallStaticIntMethodV,
2160 checked_jni_CallStaticIntMethodA,
2161 checked_jni_CallStaticLongMethod,
2162 checked_jni_CallStaticLongMethodV,
2163 checked_jni_CallStaticLongMethodA,
2164 checked_jni_CallStaticFloatMethod,
2165 checked_jni_CallStaticFloatMethodV,
2166 checked_jni_CallStaticFloatMethodA,
2167 checked_jni_CallStaticDoubleMethod,
2168 checked_jni_CallStaticDoubleMethodV,
2169 checked_jni_CallStaticDoubleMethodA,
2170 checked_jni_CallStaticVoidMethod,
2171 checked_jni_CallStaticVoidMethodV,
2172 checked_jni_CallStaticVoidMethodA,
2173
2174 checked_jni_GetStaticFieldID,
2175
2176 checked_jni_GetStaticObjectField,
2177 checked_jni_GetStaticBooleanField,
2178 checked_jni_GetStaticByteField,
2179 checked_jni_GetStaticCharField,
2180 checked_jni_GetStaticShortField,
2181 checked_jni_GetStaticIntField,
2182 checked_jni_GetStaticLongField,
2183 checked_jni_GetStaticFloatField,
2184 checked_jni_GetStaticDoubleField,
2185
2186 checked_jni_SetStaticObjectField,
2187 checked_jni_SetStaticBooleanField,
2188 checked_jni_SetStaticByteField,
2189 checked_jni_SetStaticCharField,
2190 checked_jni_SetStaticShortField,
2191 checked_jni_SetStaticIntField,
2192 checked_jni_SetStaticLongField,
2193 checked_jni_SetStaticFloatField,
2194 checked_jni_SetStaticDoubleField,
2195
2196 checked_jni_NewString,
2197 checked_jni_GetStringLength,
2198 checked_jni_GetStringChars,
2199 checked_jni_ReleaseStringChars,
2200
2201 checked_jni_NewStringUTF,
2202 checked_jni_GetStringUTFLength,
2203 checked_jni_GetStringUTFChars,
2204 checked_jni_ReleaseStringUTFChars,
2205
2206 checked_jni_GetArrayLength,
2207
2208 checked_jni_NewObjectArray,
2209 checked_jni_GetObjectArrayElement,
2210 checked_jni_SetObjectArrayElement,
2211
2212 checked_jni_NewBooleanArray,
2213 checked_jni_NewByteArray,
2214 checked_jni_NewCharArray,
2215 checked_jni_NewShortArray,
2216 checked_jni_NewIntArray,
2217 checked_jni_NewLongArray,
2218 checked_jni_NewFloatArray,
2219 checked_jni_NewDoubleArray,
2220
2221 checked_jni_GetBooleanArrayElements,
2222 checked_jni_GetByteArrayElements,
2223 checked_jni_GetCharArrayElements,
2224 checked_jni_GetShortArrayElements,
2225 checked_jni_GetIntArrayElements,
2226 checked_jni_GetLongArrayElements,
2227 checked_jni_GetFloatArrayElements,
2228 checked_jni_GetDoubleArrayElements,
2229
2230 checked_jni_ReleaseBooleanArrayElements,
2231 checked_jni_ReleaseByteArrayElements,
2232 checked_jni_ReleaseCharArrayElements,
2233 checked_jni_ReleaseShortArrayElements,
2234 checked_jni_ReleaseIntArrayElements,
2235 checked_jni_ReleaseLongArrayElements,
2236 checked_jni_ReleaseFloatArrayElements,
2237 checked_jni_ReleaseDoubleArrayElements,
2238
2239 checked_jni_GetBooleanArrayRegion,
2240 checked_jni_GetByteArrayRegion,
2241 checked_jni_GetCharArrayRegion,
2242 checked_jni_GetShortArrayRegion,
2243 checked_jni_GetIntArrayRegion,
2244 checked_jni_GetLongArrayRegion,
2245 checked_jni_GetFloatArrayRegion,
2246 checked_jni_GetDoubleArrayRegion,
2247
2248 checked_jni_SetBooleanArrayRegion,
2249 checked_jni_SetByteArrayRegion,
2250 checked_jni_SetCharArrayRegion,
2251 checked_jni_SetShortArrayRegion,
2252 checked_jni_SetIntArrayRegion,
2253 checked_jni_SetLongArrayRegion,
2254 checked_jni_SetFloatArrayRegion,
2255 checked_jni_SetDoubleArrayRegion,
2256
2257 checked_jni_RegisterNatives,
2258 checked_jni_UnregisterNatives,
2259
2260 checked_jni_MonitorEnter,
2261 checked_jni_MonitorExit,
2262
2263 checked_jni_GetJavaVM,
2264
2265 checked_jni_GetStringRegion,
2266 checked_jni_GetStringUTFRegion,
2267
2268 checked_jni_GetPrimitiveArrayCritical,
2269 checked_jni_ReleasePrimitiveArrayCritical,
2270
2271 checked_jni_GetStringCritical,
2272 checked_jni_ReleaseStringCritical,
2273
2274 checked_jni_NewWeakGlobalRef,
2275 checked_jni_DeleteWeakGlobalRef,
2276
2277 checked_jni_ExceptionCheck,
2278
2279 checked_jni_NewDirectByteBuffer,
2280 checked_jni_GetDirectBufferAddress,
2281 checked_jni_GetDirectBufferCapacity,
2282
2283 // New 1.6 Features
2284
2285 checked_jni_GetObjectRefType,
2286
2287 // Module Features
2288
2289 checked_jni_GetModule
2290 };
2291
2292
2293 // Returns the function structure
2294 struct JNINativeInterface_* jni_functions_check() {
2295
2296 unchecked_jni_NativeInterface = jni_functions_nocheck();
2297
2298 // make sure the last pointer in the checked table is not null, indicating
2299 // an addition to the JNINativeInterface_ structure without initializing
2300 // it in the checked table.
2301 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \
2302 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)
2303 assert(*lastPtr != 0,
2304 "Mismatched JNINativeInterface tables, check for new entries");
2305
2306 // with -verbose:jni this message will print
2307 if (PrintJNIResolving) {
2308 tty->print_cr("Checked JNI functions are being used to " \
2309 "validate JNI usage");
2310 }
2311
2312 return &checked_jni_NativeInterface;
2313 }