1 /*
2 * Copyright (c) 2001, 2017, 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/guardedMemory.hpp"
32 #include "oops/instanceKlass.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "oops/symbol.hpp"
35 #include "prims/jniCheck.hpp"
36 #include "prims/jvm_misc.hpp"
37 #include "runtime/fieldDescriptor.hpp"
38 #include "runtime/handles.hpp"
39 #include "runtime/interfaceSupport.hpp"
40 #include "runtime/jfieldIDWorkaround.hpp"
41 #include "runtime/thread.inline.hpp"
42
43 // Complain every extra number of unplanned local refs
44 #define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32
45
46 // Heap objects are allowed to be directly referenced only in VM code,
47 // not in native code.
48
49 #define ASSERT_OOPS_ALLOWED \
50 assert(JavaThread::current()->thread_state() == _thread_in_vm, \
51 "jniCheck examining oops in bad state.")
52
53
54 // Execute the given block of source code with the thread in VM state.
55 // To do this, transition from the NATIVE state to the VM state, execute
56 // the code, and transtition back. The ThreadInVMfromNative constructor
57 // performs the transition to VM state, its destructor restores the
58 // NATIVE state.
59
60 #define IN_VM(source_code) { \
61 { \
62 ThreadInVMfromNative __tiv(thr); \
63 source_code \
64 } \
65 }
66
67
68 /*
69 * DECLARATIONS
70 */
71
72 static struct JNINativeInterface_ * unchecked_jni_NativeInterface;
73
74
75 /*
76 * MACRO DEFINITIONS
77 */
78
79 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the
80 // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles
81 // to be created if a fatal error should occur.
82
83 // Check for thread not attached to VM; need to catch this before
84 // assertions in the wrapper routines might fire
85
86 // Check for env being the one value appropriate for this thread.
87
88 #define JNI_ENTRY_CHECKED(result_type, header) \
89 extern "C" { \
90 result_type JNICALL header { \
91 JavaThread* thr = (JavaThread*) Thread::current_or_null(); \
92 if (thr == NULL || !thr->is_Java_thread()) { \
93 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \
94 os::abort(true); \
95 } \
96 JNIEnv* xenv = thr->jni_environment(); \
97 if (env != xenv) { \
98 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \
99 } \
100 VM_ENTRY_BASE(result_type, header, thr)
101
102
103 #define UNCHECKED() (unchecked_jni_NativeInterface)
104
105 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread";
106 static const char * warn_bad_class_descriptor1 = "JNI FindClass received a bad class descriptor \"";
107 static const char * warn_bad_class_descriptor2 = "\". A correct class descriptor " \
108 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases.";
109 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread";
110 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \
111 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical";
112 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI";
113 static const char * fatal_received_null_class = "JNI received a null class";
114 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class";
115 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";
116 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call";
117 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call";
118 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations";
119 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation";
120 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation";
121 static const char * fatal_non_array = "Non-array passed to JNI array operations";
122 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI";
123 static const char * fatal_should_be_static = "Non-static field ID passed to JNI";
124 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI";
125 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations";
126 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations";
127 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI";
128 static const char * fatal_null_object = "Null object passed to JNI";
129 static const char * fatal_wrong_field = "Wrong field ID passed to JNI";
130 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations";
131 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations";
132 static const char * fatal_non_string = "JNI string operation received a non-string";
133
134
135 // When in VM state:
136 static void ReportJNIWarning(JavaThread* thr, const char *msg) {
137 tty->print_cr("WARNING in native method: %s", msg);
138 thr->print_stack();
139 }
140
141 // When in NATIVE state:
142 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
143 IN_VM(
144 ReportJNIFatalError(thr, msg);
145 )
146 }
147
148 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
149 IN_VM(
150 ReportJNIWarning(thr, msg);
151 )
152 }
153
154
155
156
157 /*
158 * SUPPORT FUNCTIONS
159 */
160
161 /**
162 * Check whether or not a programmer has actually checked for exceptions. According
163 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
164 *
165 * There are two cases where the programmer needs to check for exceptions without
166 * being able to first check an error code:
167 *
168 * - The JNI functions that invoke a Java method return the result of the Java method.
169 * The programmer must call ExceptionOccurred() to check for possible exceptions
170 * that occurred during the execution of the Java method.
171 *
172 * - Some of the JNI array access functions do not return an error code, but may
173 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException.
174 *
175 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
176 *
177 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning
178 * for these functions would be pedantic.
179 */
180 static inline void
181 check_pending_exception(JavaThread* thr) {
182 if (thr->has_pending_exception()) {
183 NativeReportJNIWarning(thr, "JNI call made with exception pending");
184 }
185 if (thr->is_pending_jni_exception_check()) {
186 IN_VM(
187 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s",
188 thr->get_pending_jni_exception_check());
189 thr->print_stack();
190 )
191 thr->clear_pending_jni_exception_check(); // Just complain once
192 }
193 }
194
195 /**
196 * Add to the planned number of handles. I.e. plus current live & warning threshold
197 */
198 static inline void
199 add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) {
200 handles->set_planned_capacity(capacity +
201 handles->get_number_of_live_handles() +
202 CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
203 }
204
205
206 static inline void
207 functionEnterCritical(JavaThread* thr)
208 {
209 check_pending_exception(thr);
210 }
211
212 static inline void
213 functionEnterCriticalExceptionAllowed(JavaThread* thr)
214 {
215 }
216
217 static inline void
218 functionEnter(JavaThread* thr)
219 {
220 if (thr->in_critical()) {
221 tty->print_cr("%s", warn_other_function_in_critical);
222 }
223 check_pending_exception(thr);
224 }
225
226 static inline void
227 functionEnterExceptionAllowed(JavaThread* thr)
228 {
229 if (thr->in_critical()) {
230 tty->print_cr("%s", warn_other_function_in_critical);
231 }
232 }
233
234 static inline void
235 functionExit(JavaThread* thr)
236 {
237 JNIHandleBlock* handles = thr->active_handles();
238 size_t planned_capacity = handles->get_planned_capacity();
239 size_t live_handles = handles->get_number_of_live_handles();
240 if (live_handles > planned_capacity) {
241 IN_VM(
242 tty->print_cr("WARNING: JNI local refs: " SIZE_FORMAT ", exceeds capacity: " SIZE_FORMAT,
243 live_handles, planned_capacity);
244 thr->print_stack();
245 )
246 // Complain just the once, reset to current + warn threshold
247 add_planned_handle_capacity(handles, 0);
248 }
249 }
250
251 static inline void
252 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
253 {
254 fieldDescriptor fd;
255
256 /* make sure it is a static field */
257 if (!jfieldIDWorkaround::is_static_jfieldID(fid))
258 ReportJNIFatalError(thr, fatal_should_be_static);
259
260 /* validate the class being passed */
261 ASSERT_OOPS_ALLOWED;
262 Klass* k_oop = jniCheck::validate_class(thr, cls, false);
263
264 /* check for proper subclass hierarchy */
265 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
266 Klass* f_oop = id->holder();
267 if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))
268 ReportJNIFatalError(thr, fatal_wrong_static_field);
269
270 /* check for proper field type */
271 if (!id->find_local_field(&fd))
272 ReportJNIFatalError(thr, fatal_static_field_not_found);
273 if ((fd.field_type() != ftype) &&
274 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
275 ReportJNIFatalError(thr, fatal_static_field_mismatch);
276 }
277 }
278
279 static inline void
280 checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)
281 {
282 fieldDescriptor fd;
283
284 /* make sure it is an instance field */
285 if (jfieldIDWorkaround::is_static_jfieldID(fid))
286 ReportJNIFatalError(thr, fatal_should_be_nonstatic);
287
288 /* validate the object being passed and then get its class */
289 ASSERT_OOPS_ALLOWED;
290 oop oopObj = jniCheck::validate_object(thr, obj);
291 if (!oopObj) {
292 ReportJNIFatalError(thr, fatal_null_object);
293 }
294 Klass* k_oop = oopObj->klass();
295
296 if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {
297 ReportJNIFatalError(thr, fatal_wrong_field);
298 }
299
300 /* make sure the field exists */
301 int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);
302 if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))
303 ReportJNIFatalError(thr, fatal_wrong_field);
304
305 /* check for proper field type */
306 if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,
307 false, &fd))
308 ReportJNIFatalError(thr, fatal_instance_field_not_found);
309
310 if ((fd.field_type() != ftype) &&
311 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
312 ReportJNIFatalError(thr, fatal_instance_field_mismatch);
313 }
314 }
315
316 static inline void
317 checkString(JavaThread* thr, jstring js)
318 {
319 ASSERT_OOPS_ALLOWED;
320 oop s = jniCheck::validate_object(thr, js);
321 if (!s || !java_lang_String::is_instance(s))
322 ReportJNIFatalError(thr, fatal_non_string);
323 }
324
325 static inline arrayOop
326 check_is_array(JavaThread* thr, jarray jArray)
327 {
328 ASSERT_OOPS_ALLOWED;
329 arrayOop aOop;
330
331 aOop = (arrayOop)jniCheck::validate_object(thr, jArray);
332 if (aOop == NULL || !aOop->is_array()) {
333 ReportJNIFatalError(thr, fatal_non_array);
334 }
335 return aOop;
336 }
337
338 static inline arrayOop
339 check_is_primitive_array(JavaThread* thr, jarray jArray) {
340 arrayOop aOop = check_is_array(thr, jArray);
341
342 if (!aOop->is_typeArray()) {
343 ReportJNIFatalError(thr, fatal_prim_type_array_expected);
344 }
345 return aOop;
346 }
347
348 static inline void
349 check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)
350 {
351 BasicType array_type;
352 arrayOop aOop;
353
354 aOop = check_is_primitive_array(thr, jArray);
355 array_type = TypeArrayKlass::cast(aOop->klass())->element_type();
356 if (array_type != elementType) {
357 ReportJNIFatalError(thr, fatal_element_type_mismatch);
358 }
359 }
360
361 static inline void
362 check_is_obj_array(JavaThread* thr, jarray jArray) {
363 arrayOop aOop = check_is_array(thr, jArray);
364 if (!aOop->is_objArray()) {
365 ReportJNIFatalError(thr, fatal_object_array_expected);
366 }
367 }
368
369 /*
370 * Copy and wrap array elements for bounds checking.
371 * Remember the original elements (GuardedMemory::get_tag())
372 */
373 static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,
374 void* orig_elements) {
375 void* result;
376 IN_VM(
377 oop a = JNIHandles::resolve_non_null(array);
378 size_t len = arrayOop(a)->length() <<
379 TypeArrayKlass::cast(a->klass())->log2_element_size();
380 result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);
381 )
382 return result;
383 }
384
385 static void* check_wrapped_array(JavaThread* thr, const char* fn_name,
386 void* obj, void* carray, size_t* rsz) {
387 if (carray == NULL) {
388 tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj));
389 NativeReportJNIFatalError(thr, "Elements vector NULL");
390 }
391 GuardedMemory guarded(carray);
392 void* orig_result = guarded.get_tag();
393 if (!guarded.verify_guards()) {
394 tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds "
395 "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: "
396 PTR_FORMAT, p2i(obj), p2i(carray));
397 guarded.print_on(tty);
398 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
399 "failed bounds check");
400 }
401 if (orig_result == NULL) {
402 tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: "
403 PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray));
404 guarded.print_on(tty);
405 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
406 "unrecognized elements");
407 }
408 if (rsz != NULL) {
409 *rsz = guarded.get_user_size();
410 }
411 return orig_result;
412 }
413
414 static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,
415 void* obj, void* carray, jint mode) {
416 size_t sz;
417 void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);
418 switch (mode) {
419 case 0:
420 memcpy(orig_result, carray, sz);
421 GuardedMemory::free_copy(carray);
422 break;
423 case JNI_COMMIT:
424 memcpy(orig_result, carray, sz);
425 break;
426 case JNI_ABORT:
427 GuardedMemory::free_copy(carray);
428 break;
429 default:
430 tty->print_cr("%s: Unrecognized mode %i releasing array "
431 PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));
432 NativeReportJNIFatalError(thr, "Unrecognized array release mode");
433 }
434 return orig_result;
435 }
436
437 oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {
438 if (JNIHandles::is_frame_handle(thr, obj) ||
439 JNIHandles::is_local_handle(thr, obj) ||
440 JNIHandles::is_global_handle(obj) ||
441 JNIHandles::is_weak_global_handle(obj)) {
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)
468 return NULL;
469 ASSERT_OOPS_ALLOWED;
470 oop oopObj = jniCheck::validate_handle(thr, obj);
471 if (!oopObj) {
472 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
473 }
474 return oopObj;
475 }
476
477 // Warn if a class descriptor is in decorated form; class descriptors
478 // passed to JNI findClass should not be decorated unless they are
479 // array descriptors.
480 void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {
481 if (name == NULL) return; // implementation accepts NULL so just return
482
483 size_t len = strlen(name);
484
485 if (len >= 2 &&
486 name[0] == JVM_SIGNATURE_CLASS && // 'L'
487 name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';'
488 char msg[JVM_MAXPATHLEN];
489 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s",
490 warn_bad_class_descriptor1, name, warn_bad_class_descriptor2);
491 ReportJNIWarning(thr, msg);
492 }
493 }
494
495 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {
496 ASSERT_OOPS_ALLOWED;
497 oop mirror = jniCheck::validate_handle(thr, clazz);
498 if (!mirror) {
499 ReportJNIFatalError(thr, fatal_received_null_class);
500 }
501
502 if (mirror->klass() != SystemDictionary::Class_klass()) {
503 ReportJNIFatalError(thr, fatal_class_not_a_class);
504 }
505
506 Klass* k = java_lang_Class::as_Klass(mirror);
507 // Make allowances for primitive classes ...
508 if (!(k != NULL || (allow_primitive && java_lang_Class::is_primitive(mirror)))) {
509 ReportJNIFatalError(thr, fatal_class_not_a_class);
510 }
511 return k;
512 }
513
514 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {
515 ASSERT_OOPS_ALLOWED;
516 assert(klass != NULL, "klass argument must have a value");
517
518 if (!klass->is_instance_klass() ||
519 !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) {
520 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);
521 }
522 }
523
524 void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) {
525 /* validate the object being passed */
526 ASSERT_OOPS_ALLOWED;
527 jniCheck::validate_jmethod_id(thr, method_id);
528 jniCheck::validate_object(thr, obj);
529 }
530
531 void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) {
532 /* validate the class being passed */
533 ASSERT_OOPS_ALLOWED;
534 jniCheck::validate_jmethod_id(thr, method_id);
535 jniCheck::validate_class(thr, clazz, false);
536 }
537
538
539 /*
540 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
541 */
542
543 JNI_ENTRY_CHECKED(jclass,
544 checked_jni_DefineClass(JNIEnv *env,
545 const char *name,
546 jobject loader,
547 const jbyte *buf,
548 jsize len))
549 functionEnter(thr);
550 IN_VM(
551 jniCheck::validate_object(thr, loader);
552 )
553 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
554 functionExit(thr);
555 return result;
556 JNI_END
557
558 JNI_ENTRY_CHECKED(jclass,
559 checked_jni_FindClass(JNIEnv *env,
560 const char *name))
561 functionEnter(thr);
562 IN_VM(
563 jniCheck::validate_class_descriptor(thr, name);
564 )
565 jclass result = UNCHECKED()->FindClass(env, name);
566 functionExit(thr);
567 return result;
568 JNI_END
569
570 JNI_ENTRY_CHECKED(jmethodID,
571 checked_jni_FromReflectedMethod(JNIEnv *env,
572 jobject method))
573 functionEnter(thr);
574 IN_VM(
575 jniCheck::validate_object(thr, method);
576 )
577 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
578 functionExit(thr);
579 return result;
580 JNI_END
581
582 JNI_ENTRY_CHECKED(jfieldID,
583 checked_jni_FromReflectedField(JNIEnv *env,
584 jobject field))
585 functionEnter(thr);
586 IN_VM(
587 jniCheck::validate_object(thr, field);
588 )
589 jfieldID result = UNCHECKED()->FromReflectedField(env, field);
590 functionExit(thr);
591 return result;
592 JNI_END
593
594 JNI_ENTRY_CHECKED(jobject,
595 checked_jni_ToReflectedMethod(JNIEnv *env,
596 jclass cls,
597 jmethodID methodID,
598 jboolean isStatic))
599 functionEnter(thr);
600 IN_VM(
601 jniCheck::validate_class(thr, cls, false);
602 jniCheck::validate_jmethod_id(thr, methodID);
603 )
604 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
605 isStatic);
606 functionExit(thr);
607 return result;
608 JNI_END
609
610 JNI_ENTRY_CHECKED(jclass,
611 checked_jni_GetSuperclass(JNIEnv *env,
612 jclass sub))
613 functionEnter(thr);
614 IN_VM(
615 jniCheck::validate_class(thr, sub, true);
616 )
617 jclass result = UNCHECKED()->GetSuperclass(env, sub);
618 functionExit(thr);
619 return result;
620 JNI_END
621
622 JNI_ENTRY_CHECKED(jboolean,
623 checked_jni_IsAssignableFrom(JNIEnv *env,
624 jclass sub,
625 jclass sup))
626 functionEnter(thr);
627 IN_VM(
628 jniCheck::validate_class(thr, sub, true);
629 jniCheck::validate_class(thr, sup, true);
630 )
631 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
632 functionExit(thr);
633 return result;
634 JNI_END
635
636 JNI_ENTRY_CHECKED(jobject,
637 checked_jni_ToReflectedField(JNIEnv *env,
638 jclass cls,
639 jfieldID fieldID,
640 jboolean isStatic))
641 functionEnter(thr);
642 IN_VM(
643 jniCheck::validate_class(thr, cls, false);
644 )
645 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
646 isStatic);
647 functionExit(thr);
648 return result;
649 JNI_END
650
651 JNI_ENTRY_CHECKED(jint,
652 checked_jni_Throw(JNIEnv *env,
653 jthrowable obj))
654 functionEnter(thr);
655 IN_VM(
656 oop oopObj = jniCheck::validate_object(thr, obj);
657 if (oopObj == NULL) {
658 // Unchecked Throw tolerates a NULL obj, so just warn
659 ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
660 } else {
661 jniCheck::validate_throwable_klass(thr, oopObj->klass());
662 }
663 )
664 jint result = UNCHECKED()->Throw(env, obj);
665 functionExit(thr);
666 return result;
667 JNI_END
668
669 JNI_ENTRY_CHECKED(jint,
670 checked_jni_ThrowNew(JNIEnv *env,
671 jclass clazz,
672 const char *msg))
673 functionEnter(thr);
674 IN_VM(
675 Klass* k = jniCheck::validate_class(thr, clazz, false);
676 assert(k != NULL, "validate_class shouldn't return NULL Klass*");
677 jniCheck::validate_throwable_klass(thr, k);
678 )
679 jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
680 functionExit(thr);
681 return result;
682 JNI_END
683
684 JNI_ENTRY_CHECKED(jthrowable,
685 checked_jni_ExceptionOccurred(JNIEnv *env))
686 thr->clear_pending_jni_exception_check();
687 functionEnterExceptionAllowed(thr);
688 jthrowable result = UNCHECKED()->ExceptionOccurred(env);
689 functionExit(thr);
690 return result;
691 JNI_END
692
693 JNI_ENTRY_CHECKED(void,
694 checked_jni_ExceptionDescribe(JNIEnv *env))
695 functionEnterExceptionAllowed(thr);
696 UNCHECKED()->ExceptionDescribe(env);
697 functionExit(thr);
698 JNI_END
699
700 JNI_ENTRY_CHECKED(void,
701 checked_jni_ExceptionClear(JNIEnv *env))
702 thr->clear_pending_jni_exception_check();
703 functionEnterExceptionAllowed(thr);
704 UNCHECKED()->ExceptionClear(env);
705 functionExit(thr);
706 JNI_END
707
708 JNI_ENTRY_CHECKED(void,
709 checked_jni_FatalError(JNIEnv *env,
710 const char *msg))
711 thr->clear_pending_jni_exception_check();
712 functionEnter(thr);
713 UNCHECKED()->FatalError(env, msg);
714 functionExit(thr);
715 JNI_END
716
717 JNI_ENTRY_CHECKED(jint,
718 checked_jni_PushLocalFrame(JNIEnv *env,
719 jint capacity))
720 functionEnterExceptionAllowed(thr);
721 if (capacity < 0)
722 NativeReportJNIFatalError(thr, "negative capacity");
723 jint result = UNCHECKED()->PushLocalFrame(env, capacity);
724 if (result == JNI_OK) {
725 add_planned_handle_capacity(thr->active_handles(), capacity);
726 }
727 functionExit(thr);
728 return result;
729 JNI_END
730
731 JNI_ENTRY_CHECKED(jobject,
732 checked_jni_PopLocalFrame(JNIEnv *env,
733 jobject result))
734 functionEnterExceptionAllowed(thr);
735 jobject res = UNCHECKED()->PopLocalFrame(env, result);
736 functionExit(thr);
737 return res;
738 JNI_END
739
740 JNI_ENTRY_CHECKED(jobject,
741 checked_jni_NewGlobalRef(JNIEnv *env,
742 jobject lobj))
743 functionEnter(thr);
744 IN_VM(
745 if (lobj != NULL) {
746 jniCheck::validate_handle(thr, lobj);
747 }
748 )
749 jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
750 functionExit(thr);
751 return result;
752 JNI_END
753
754 JNI_ENTRY_CHECKED(void,
755 checked_jni_DeleteGlobalRef(JNIEnv *env,
756 jobject gref))
757 functionEnterExceptionAllowed(thr);
758 IN_VM(
759 jniCheck::validate_object(thr, gref);
760 if (gref && !JNIHandles::is_global_handle(gref)) {
761 ReportJNIFatalError(thr,
762 "Invalid global JNI handle passed to DeleteGlobalRef");
763 }
764 )
765 UNCHECKED()->DeleteGlobalRef(env,gref);
766 functionExit(thr);
767 JNI_END
768
769 JNI_ENTRY_CHECKED(void,
770 checked_jni_DeleteLocalRef(JNIEnv *env,
771 jobject obj))
772 functionEnterExceptionAllowed(thr);
773 IN_VM(
774 jniCheck::validate_object(thr, obj);
775 if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
776 JNIHandles::is_frame_handle(thr, obj)))
777 ReportJNIFatalError(thr,
778 "Invalid local JNI handle passed to DeleteLocalRef");
779 )
780 UNCHECKED()->DeleteLocalRef(env, obj);
781 functionExit(thr);
782 JNI_END
783
784 JNI_ENTRY_CHECKED(jboolean,
785 checked_jni_IsSameObject(JNIEnv *env,
786 jobject obj1,
787 jobject obj2))
788 functionEnterExceptionAllowed(thr);
789 IN_VM(
790 /* This JNI function can be used to compare weak global references
791 * to NULL objects. If the handles are valid, but contain NULL,
792 * then don't attempt to validate the object.
793 */
794 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
795 jniCheck::validate_object(thr, obj1);
796 }
797 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
798 jniCheck::validate_object(thr, obj2);
799 }
800 )
801 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
802 functionExit(thr);
803 return result;
804 JNI_END
805
806 JNI_ENTRY_CHECKED(jobject,
807 checked_jni_NewLocalRef(JNIEnv *env,
808 jobject ref))
809 functionEnter(thr);
810 IN_VM(
811 if (ref != NULL) {
812 jniCheck::validate_handle(thr, ref);
813 }
814 )
815 jobject result = UNCHECKED()->NewLocalRef(env, ref);
816 functionExit(thr);
817 return result;
818 JNI_END
819
820 JNI_ENTRY_CHECKED(jint,
821 checked_jni_EnsureLocalCapacity(JNIEnv *env,
822 jint capacity))
823 functionEnter(thr);
824 if (capacity < 0) {
825 NativeReportJNIFatalError(thr, "negative capacity");
826 }
827 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
828 if (result == JNI_OK) {
829 // increase local ref capacity if needed
830 if ((size_t)capacity > thr->active_handles()->get_planned_capacity()) {
831 add_planned_handle_capacity(thr->active_handles(), capacity);
832 }
833 }
834 functionExit(thr);
835 return result;
836 JNI_END
837
838 JNI_ENTRY_CHECKED(jobject,
839 checked_jni_AllocObject(JNIEnv *env,
840 jclass clazz))
841 functionEnter(thr);
842 IN_VM(
843 jniCheck::validate_class(thr, clazz, false);
844 )
845 jobject result = UNCHECKED()->AllocObject(env,clazz);
846 functionExit(thr);
847 return result;
848 JNI_END
849
850 JNI_ENTRY_CHECKED(jobject,
851 checked_jni_NewObject(JNIEnv *env,
852 jclass clazz,
853 jmethodID methodID,
854 ...))
855 functionEnter(thr);
856 va_list args;
857 IN_VM(
858 jniCheck::validate_class(thr, clazz, false);
859 jniCheck::validate_jmethod_id(thr, methodID);
860 )
861 va_start(args, methodID);
862 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
863 va_end(args);
864 functionExit(thr);
865 return result;
866 JNI_END
867
868 JNI_ENTRY_CHECKED(jobject,
869 checked_jni_NewObjectV(JNIEnv *env,
870 jclass clazz,
871 jmethodID methodID,
872 va_list args))
873 functionEnter(thr);
874 IN_VM(
875 jniCheck::validate_class(thr, clazz, false);
876 jniCheck::validate_jmethod_id(thr, methodID);
877 )
878 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
879 functionExit(thr);
880 return result;
881 JNI_END
882
883 JNI_ENTRY_CHECKED(jobject,
884 checked_jni_NewObjectA(JNIEnv *env,
885 jclass clazz,
886 jmethodID methodID,
887 const jvalue *args))
888 functionEnter(thr);
889 IN_VM(
890 jniCheck::validate_class(thr, clazz, false);
891 jniCheck::validate_jmethod_id(thr, methodID);
892 )
893 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
894 functionExit(thr);
895 return result;
896 JNI_END
897
898 JNI_ENTRY_CHECKED(jclass,
899 checked_jni_GetObjectClass(JNIEnv *env,
900 jobject obj))
901 functionEnter(thr);
902 IN_VM(
903 jniCheck::validate_object(thr, obj);
904 )
905 jclass result = UNCHECKED()->GetObjectClass(env,obj);
906 functionExit(thr);
907 return result;
908 JNI_END
909
910 JNI_ENTRY_CHECKED(jboolean,
911 checked_jni_IsInstanceOf(JNIEnv *env,
912 jobject obj,
913 jclass clazz))
914 functionEnter(thr);
915 IN_VM(
916 jniCheck::validate_object(thr, obj);
917 jniCheck::validate_class(thr, clazz, true);
918 )
919 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
920 functionExit(thr);
921 return result;
922 JNI_END
923
924 JNI_ENTRY_CHECKED(jmethodID,
925 checked_jni_GetMethodID(JNIEnv *env,
926 jclass clazz,
927 const char *name,
928 const char *sig))
929 functionEnter(thr);
930 IN_VM(
931 jniCheck::validate_class(thr, clazz, false);
932 )
933 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
934 functionExit(thr);
935 return result;
936 JNI_END
937
938 #define WRAPPER_CallMethod(ResultType, Result) \
939 JNI_ENTRY_CHECKED(ResultType, \
940 checked_jni_Call##Result##Method(JNIEnv *env, \
941 jobject obj, \
942 jmethodID methodID, \
943 ...)) \
944 functionEnter(thr); \
945 va_list args; \
946 IN_VM( \
947 jniCheck::validate_call_object(thr, obj, methodID); \
948 ) \
949 va_start(args,methodID); \
950 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
951 args); \
952 va_end(args); \
953 thr->set_pending_jni_exception_check("Call"#Result"Method"); \
954 functionExit(thr); \
955 return result; \
956 JNI_END \
957 \
958 JNI_ENTRY_CHECKED(ResultType, \
959 checked_jni_Call##Result##MethodV(JNIEnv *env, \
960 jobject obj, \
961 jmethodID methodID, \
962 va_list args)) \
963 functionEnter(thr); \
964 IN_VM(\
965 jniCheck::validate_call_object(thr, obj, methodID); \
966 ) \
967 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
968 args); \
969 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
970 functionExit(thr); \
971 return result; \
972 JNI_END \
973 \
974 JNI_ENTRY_CHECKED(ResultType, \
975 checked_jni_Call##Result##MethodA(JNIEnv *env, \
976 jobject obj, \
977 jmethodID methodID, \
978 const jvalue * args)) \
979 functionEnter(thr); \
980 IN_VM( \
981 jniCheck::validate_call_object(thr, obj, methodID); \
982 ) \
983 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
984 args); \
985 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
986 functionExit(thr); \
987 return result; \
988 JNI_END
989
990 WRAPPER_CallMethod(jobject,Object)
991 WRAPPER_CallMethod(jboolean,Boolean)
992 WRAPPER_CallMethod(jbyte,Byte)
993 WRAPPER_CallMethod(jshort,Short)
994 WRAPPER_CallMethod(jchar,Char)
995 WRAPPER_CallMethod(jint,Int)
996 WRAPPER_CallMethod(jlong,Long)
997 WRAPPER_CallMethod(jfloat,Float)
998 WRAPPER_CallMethod(jdouble,Double)
999
1000 JNI_ENTRY_CHECKED(void,
1001 checked_jni_CallVoidMethod(JNIEnv *env, \
1002 jobject obj, \
1003 jmethodID methodID, \
1004 ...))
1005 functionEnter(thr);
1006 va_list args;
1007 IN_VM(
1008 jniCheck::validate_call_object(thr, obj, methodID);
1009 )
1010 va_start(args,methodID);
1011 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1012 va_end(args);
1013 thr->set_pending_jni_exception_check("CallVoidMethod");
1014 functionExit(thr);
1015 JNI_END
1016
1017 JNI_ENTRY_CHECKED(void,
1018 checked_jni_CallVoidMethodV(JNIEnv *env,
1019 jobject obj,
1020 jmethodID methodID,
1021 va_list args))
1022 functionEnter(thr);
1023 IN_VM(
1024 jniCheck::validate_call_object(thr, obj, methodID);
1025 )
1026 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1027 thr->set_pending_jni_exception_check("CallVoidMethodV");
1028 functionExit(thr);
1029 JNI_END
1030
1031 JNI_ENTRY_CHECKED(void,
1032 checked_jni_CallVoidMethodA(JNIEnv *env,
1033 jobject obj,
1034 jmethodID methodID,
1035 const jvalue * args))
1036 functionEnter(thr);
1037 IN_VM(
1038 jniCheck::validate_call_object(thr, obj, methodID);
1039 )
1040 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1041 thr->set_pending_jni_exception_check("CallVoidMethodA");
1042 functionExit(thr);
1043 JNI_END
1044
1045 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1046 JNI_ENTRY_CHECKED(ResultType, \
1047 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1048 jobject obj, \
1049 jclass clazz, \
1050 jmethodID methodID, \
1051 ...)) \
1052 functionEnter(thr); \
1053 va_list args; \
1054 IN_VM( \
1055 jniCheck::validate_call_object(thr, obj, methodID); \
1056 jniCheck::validate_call_class(thr, clazz, methodID); \
1057 ) \
1058 va_start(args,methodID); \
1059 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1060 obj, \
1061 clazz, \
1062 methodID,\
1063 args); \
1064 va_end(args); \
1065 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1066 functionExit(thr); \
1067 return result; \
1068 JNI_END \
1069 \
1070 JNI_ENTRY_CHECKED(ResultType, \
1071 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1072 jobject obj, \
1073 jclass clazz, \
1074 jmethodID methodID, \
1075 va_list args)) \
1076 functionEnter(thr); \
1077 IN_VM( \
1078 jniCheck::validate_call_object(thr, obj, methodID); \
1079 jniCheck::validate_call_class(thr, clazz, methodID); \
1080 ) \
1081 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1082 obj, \
1083 clazz, \
1084 methodID,\
1085 args); \
1086 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1087 functionExit(thr); \
1088 return result; \
1089 JNI_END \
1090 \
1091 JNI_ENTRY_CHECKED(ResultType, \
1092 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1093 jobject obj, \
1094 jclass clazz, \
1095 jmethodID methodID, \
1096 const jvalue * args)) \
1097 functionEnter(thr); \
1098 IN_VM( \
1099 jniCheck::validate_call_object(thr, obj, methodID); \
1100 jniCheck::validate_call_class(thr, clazz, methodID); \
1101 ) \
1102 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1103 obj, \
1104 clazz, \
1105 methodID,\
1106 args); \
1107 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1108 functionExit(thr); \
1109 return result; \
1110 JNI_END
1111
1112 WRAPPER_CallNonvirtualMethod(jobject,Object)
1113 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1114 WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1115 WRAPPER_CallNonvirtualMethod(jshort,Short)
1116 WRAPPER_CallNonvirtualMethod(jchar,Char)
1117 WRAPPER_CallNonvirtualMethod(jint,Int)
1118 WRAPPER_CallNonvirtualMethod(jlong,Long)
1119 WRAPPER_CallNonvirtualMethod(jfloat,Float)
1120 WRAPPER_CallNonvirtualMethod(jdouble,Double)
1121
1122 JNI_ENTRY_CHECKED(void,
1123 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1124 jobject obj,
1125 jclass clazz,
1126 jmethodID methodID,
1127 ...))
1128 functionEnter(thr);
1129 va_list args;
1130 IN_VM(
1131 jniCheck::validate_call_object(thr, obj, methodID);
1132 jniCheck::validate_call_class(thr, clazz, methodID);
1133 )
1134 va_start(args,methodID);
1135 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1136 va_end(args);
1137 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1138 functionExit(thr);
1139 JNI_END
1140
1141 JNI_ENTRY_CHECKED(void,
1142 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1143 jobject obj,
1144 jclass clazz,
1145 jmethodID methodID,
1146 va_list args))
1147 functionEnter(thr);
1148 IN_VM(
1149 jniCheck::validate_call_object(thr, obj, methodID);
1150 jniCheck::validate_call_class(thr, clazz, methodID);
1151 )
1152 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1153 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1154 functionExit(thr);
1155 JNI_END
1156
1157 JNI_ENTRY_CHECKED(void,
1158 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1159 jobject obj,
1160 jclass clazz,
1161 jmethodID methodID,
1162 const jvalue * args))
1163 functionEnter(thr);
1164 IN_VM(
1165 jniCheck::validate_call_object(thr, obj, methodID);
1166 jniCheck::validate_call_class(thr, clazz, methodID);
1167 )
1168 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1169 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1170 functionExit(thr);
1171 JNI_END
1172
1173 JNI_ENTRY_CHECKED(jfieldID,
1174 checked_jni_GetFieldID(JNIEnv *env,
1175 jclass clazz,
1176 const char *name,
1177 const char *sig))
1178 functionEnter(thr);
1179 IN_VM(
1180 jniCheck::validate_class(thr, clazz, false);
1181 )
1182 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1183 functionExit(thr);
1184 return result;
1185 JNI_END
1186
1187 #define WRAPPER_GetField(ReturnType,Result,FieldType) \
1188 JNI_ENTRY_CHECKED(ReturnType, \
1189 checked_jni_Get##Result##Field(JNIEnv *env, \
1190 jobject obj, \
1191 jfieldID fieldID)) \
1192 functionEnter(thr); \
1193 IN_VM( \
1194 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1195 ) \
1196 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1197 functionExit(thr); \
1198 return result; \
1199 JNI_END
1200
1201 WRAPPER_GetField(jobject, Object, T_OBJECT)
1202 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1203 WRAPPER_GetField(jbyte, Byte, T_BYTE)
1204 WRAPPER_GetField(jshort, Short, T_SHORT)
1205 WRAPPER_GetField(jchar, Char, T_CHAR)
1206 WRAPPER_GetField(jint, Int, T_INT)
1207 WRAPPER_GetField(jlong, Long, T_LONG)
1208 WRAPPER_GetField(jfloat, Float, T_FLOAT)
1209 WRAPPER_GetField(jdouble, Double, T_DOUBLE)
1210
1211 #define WRAPPER_SetField(ValueType,Result,FieldType) \
1212 JNI_ENTRY_CHECKED(void, \
1213 checked_jni_Set##Result##Field(JNIEnv *env, \
1214 jobject obj, \
1215 jfieldID fieldID, \
1216 ValueType val)) \
1217 functionEnter(thr); \
1218 IN_VM( \
1219 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1220 ) \
1221 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1222 functionExit(thr); \
1223 JNI_END
1224
1225 WRAPPER_SetField(jobject, Object, T_OBJECT)
1226 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1227 WRAPPER_SetField(jbyte, Byte, T_BYTE)
1228 WRAPPER_SetField(jshort, Short, T_SHORT)
1229 WRAPPER_SetField(jchar, Char, T_CHAR)
1230 WRAPPER_SetField(jint, Int, T_INT)
1231 WRAPPER_SetField(jlong, Long, T_LONG)
1232 WRAPPER_SetField(jfloat, Float, T_FLOAT)
1233 WRAPPER_SetField(jdouble, Double, T_DOUBLE)
1234
1235
1236 JNI_ENTRY_CHECKED(jmethodID,
1237 checked_jni_GetStaticMethodID(JNIEnv *env,
1238 jclass clazz,
1239 const char *name,
1240 const char *sig))
1241 functionEnter(thr);
1242 IN_VM(
1243 jniCheck::validate_class(thr, clazz, false);
1244 )
1245 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1246 functionExit(thr);
1247 return result;
1248 JNI_END
1249
1250 #define WRAPPER_CallStaticMethod(ReturnType,Result) \
1251 JNI_ENTRY_CHECKED(ReturnType, \
1252 checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1253 jclass clazz, \
1254 jmethodID methodID, \
1255 ...)) \
1256 functionEnter(thr); \
1257 va_list args; \
1258 IN_VM( \
1259 jniCheck::validate_jmethod_id(thr, methodID); \
1260 jniCheck::validate_class(thr, clazz, false); \
1261 ) \
1262 va_start(args,methodID); \
1263 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1264 clazz, \
1265 methodID, \
1266 args); \
1267 va_end(args); \
1268 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1269 functionExit(thr); \
1270 return result; \
1271 JNI_END \
1272 \
1273 JNI_ENTRY_CHECKED(ReturnType, \
1274 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1275 jclass clazz, \
1276 jmethodID methodID,\
1277 va_list args)) \
1278 functionEnter(thr); \
1279 IN_VM( \
1280 jniCheck::validate_jmethod_id(thr, methodID); \
1281 jniCheck::validate_class(thr, clazz, false); \
1282 ) \
1283 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1284 clazz, \
1285 methodID, \
1286 args); \
1287 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1288 functionExit(thr); \
1289 return result; \
1290 JNI_END \
1291 \
1292 JNI_ENTRY_CHECKED(ReturnType, \
1293 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1294 jclass clazz, \
1295 jmethodID methodID, \
1296 const jvalue *args)) \
1297 functionEnter(thr); \
1298 IN_VM( \
1299 jniCheck::validate_jmethod_id(thr, methodID); \
1300 jniCheck::validate_class(thr, clazz, false); \
1301 ) \
1302 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1303 clazz, \
1304 methodID, \
1305 args); \
1306 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1307 functionExit(thr); \
1308 return result; \
1309 JNI_END
1310
1311 WRAPPER_CallStaticMethod(jobject,Object)
1312 WRAPPER_CallStaticMethod(jboolean,Boolean)
1313 WRAPPER_CallStaticMethod(jbyte,Byte)
1314 WRAPPER_CallStaticMethod(jshort,Short)
1315 WRAPPER_CallStaticMethod(jchar,Char)
1316 WRAPPER_CallStaticMethod(jint,Int)
1317 WRAPPER_CallStaticMethod(jlong,Long)
1318 WRAPPER_CallStaticMethod(jfloat,Float)
1319 WRAPPER_CallStaticMethod(jdouble,Double)
1320
1321 JNI_ENTRY_CHECKED(void,
1322 checked_jni_CallStaticVoidMethod(JNIEnv *env,
1323 jclass cls,
1324 jmethodID methodID,
1325 ...))
1326 functionEnter(thr);
1327 va_list args;
1328 IN_VM(
1329 jniCheck::validate_jmethod_id(thr, methodID);
1330 jniCheck::validate_class(thr, cls, false);
1331 )
1332 va_start(args,methodID);
1333 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1334 va_end(args);
1335 thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1336 functionExit(thr);
1337 JNI_END
1338
1339 JNI_ENTRY_CHECKED(void,
1340 checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1341 jclass cls,
1342 jmethodID methodID,
1343 va_list args))
1344 functionEnter(thr);
1345 IN_VM(
1346 jniCheck::validate_jmethod_id(thr, methodID);
1347 jniCheck::validate_class(thr, cls, false);
1348 )
1349 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1350 thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1351 functionExit(thr);
1352 JNI_END
1353
1354 JNI_ENTRY_CHECKED(void,
1355 checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1356 jclass cls,
1357 jmethodID methodID,
1358 const jvalue * args))
1359 functionEnter(thr);
1360 IN_VM(
1361 jniCheck::validate_jmethod_id(thr, methodID);
1362 jniCheck::validate_class(thr, cls, false);
1363 )
1364 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1365 thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1366 functionExit(thr);
1367 JNI_END
1368
1369 JNI_ENTRY_CHECKED(jfieldID,
1370 checked_jni_GetStaticFieldID(JNIEnv *env,
1371 jclass clazz,
1372 const char *name,
1373 const char *sig))
1374 functionEnter(thr);
1375 IN_VM(
1376 jniCheck::validate_class(thr, clazz, false);
1377 )
1378 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1379 functionExit(thr);
1380 return result;
1381 JNI_END
1382
1383 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1384 JNI_ENTRY_CHECKED(ReturnType, \
1385 checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1386 jclass clazz, \
1387 jfieldID fieldID)) \
1388 functionEnter(thr); \
1389 IN_VM( \
1390 jniCheck::validate_class(thr, clazz, false); \
1391 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1392 ) \
1393 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1394 clazz, \
1395 fieldID); \
1396 functionExit(thr); \
1397 return result; \
1398 JNI_END
1399
1400 WRAPPER_GetStaticField(jobject, Object, T_OBJECT)
1401 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1402 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE)
1403 WRAPPER_GetStaticField(jshort, Short, T_SHORT)
1404 WRAPPER_GetStaticField(jchar, Char, T_CHAR)
1405 WRAPPER_GetStaticField(jint, Int, T_INT)
1406 WRAPPER_GetStaticField(jlong, Long, T_LONG)
1407 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT)
1408 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE)
1409
1410 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1411 JNI_ENTRY_CHECKED(void, \
1412 checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1413 jclass clazz, \
1414 jfieldID fieldID, \
1415 ValueType value)) \
1416 functionEnter(thr); \
1417 IN_VM( \
1418 jniCheck::validate_class(thr, clazz, false); \
1419 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1420 ) \
1421 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1422 functionExit(thr); \
1423 JNI_END
1424
1425 WRAPPER_SetStaticField(jobject, Object, T_OBJECT)
1426 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1427 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE)
1428 WRAPPER_SetStaticField(jshort, Short, T_SHORT)
1429 WRAPPER_SetStaticField(jchar, Char, T_CHAR)
1430 WRAPPER_SetStaticField(jint, Int, T_INT)
1431 WRAPPER_SetStaticField(jlong, Long, T_LONG)
1432 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT)
1433 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE)
1434
1435
1436 JNI_ENTRY_CHECKED(jstring,
1437 checked_jni_NewString(JNIEnv *env,
1438 const jchar *unicode,
1439 jsize len))
1440 functionEnter(thr);
1441 jstring result = UNCHECKED()->NewString(env,unicode,len);
1442 functionExit(thr);
1443 return result;
1444 JNI_END
1445
1446 JNI_ENTRY_CHECKED(jsize,
1447 checked_jni_GetStringLength(JNIEnv *env,
1448 jstring str))
1449 functionEnter(thr);
1450 IN_VM(
1451 checkString(thr, str);
1452 )
1453 jsize result = UNCHECKED()->GetStringLength(env,str);
1454 functionExit(thr);
1455 return result;
1456 JNI_END
1457
1458 // Arbitrary (but well-known) tag
1459 const void* STRING_TAG = (void*)0x47114711;
1460
1461 JNI_ENTRY_CHECKED(const jchar *,
1462 checked_jni_GetStringChars(JNIEnv *env,
1463 jstring str,
1464 jboolean *isCopy))
1465 functionEnter(thr);
1466 IN_VM(
1467 checkString(thr, str);
1468 )
1469 jchar* new_result = NULL;
1470 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1471 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1472 if (result != NULL) {
1473 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination
1474 len *= sizeof(jchar);
1475 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1476 if (new_result == NULL) {
1477 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1478 }
1479 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1480 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1481 FreeHeap((char*)result);
1482 }
1483 functionExit(thr);
1484 return new_result;
1485 JNI_END
1486
1487 JNI_ENTRY_CHECKED(void,
1488 checked_jni_ReleaseStringChars(JNIEnv *env,
1489 jstring str,
1490 const jchar *chars))
1491 functionEnterExceptionAllowed(thr);
1492 IN_VM(
1493 checkString(thr, str);
1494 )
1495 if (chars == NULL) {
1496 // still do the unchecked call to allow dtrace probes
1497 UNCHECKED()->ReleaseStringChars(env,str,chars);
1498 }
1499 else {
1500 GuardedMemory guarded((void*)chars);
1501 if (!guarded.verify_guards()) {
1502 tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1503 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1504 guarded.print_on(tty);
1505 NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1506 "release chars failed bounds check.");
1507 }
1508 if (guarded.get_tag() != STRING_TAG) {
1509 tty->print_cr("ReleaseStringChars: called on something not allocated "
1510 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1511 p2i(str), p2i(chars));
1512 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1513 "not allocated by GetStringChars");
1514 }
1515 UNCHECKED()->ReleaseStringChars(env, str,
1516 (const jchar*) guarded.release_for_freeing());
1517 }
1518 functionExit(thr);
1519 JNI_END
1520
1521 JNI_ENTRY_CHECKED(jstring,
1522 checked_jni_NewStringUTF(JNIEnv *env,
1523 const char *utf))
1524 functionEnter(thr);
1525 jstring result = UNCHECKED()->NewStringUTF(env,utf);
1526 functionExit(thr);
1527 return result;
1528 JNI_END
1529
1530 JNI_ENTRY_CHECKED(jsize,
1531 checked_jni_GetStringUTFLength(JNIEnv *env,
1532 jstring str))
1533 functionEnter(thr);
1534 IN_VM(
1535 checkString(thr, str);
1536 )
1537 jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1538 functionExit(thr);
1539 return result;
1540 JNI_END
1541
1542 // Arbitrary (but well-known) tag - different than GetStringChars
1543 const void* STRING_UTF_TAG = (void*) 0x48124812;
1544
1545 JNI_ENTRY_CHECKED(const char *,
1546 checked_jni_GetStringUTFChars(JNIEnv *env,
1547 jstring str,
1548 jboolean *isCopy))
1549 functionEnter(thr);
1550 IN_VM(
1551 checkString(thr, str);
1552 )
1553 char* new_result = NULL;
1554 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1555 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1556 if (result != NULL) {
1557 size_t len = strlen(result) + 1; // + 1 for NULL termination
1558 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1559 if (new_result == NULL) {
1560 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1561 }
1562 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1563 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1564 FreeHeap((char*)result);
1565 }
1566 functionExit(thr);
1567 return new_result;
1568 JNI_END
1569
1570 JNI_ENTRY_CHECKED(void,
1571 checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1572 jstring str,
1573 const char* chars))
1574 functionEnterExceptionAllowed(thr);
1575 IN_VM(
1576 checkString(thr, str);
1577 )
1578 if (chars == NULL) {
1579 // still do the unchecked call to allow dtrace probes
1580 UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1581 }
1582 else {
1583 GuardedMemory guarded((void*)chars);
1584 if (!guarded.verify_guards()) {
1585 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1586 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1587 guarded.print_on(tty);
1588 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1589 "release chars failed bounds check.");
1590 }
1591 if (guarded.get_tag() != STRING_UTF_TAG) {
1592 tty->print_cr("ReleaseStringUTFChars: called on something not "
1593 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1594 PTR_FORMAT, p2i(str), p2i(chars));
1595 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1596 "called on something not allocated by GetStringUTFChars");
1597 }
1598 UNCHECKED()->ReleaseStringUTFChars(env, str,
1599 (const char*) guarded.release_for_freeing());
1600 }
1601 functionExit(thr);
1602 JNI_END
1603
1604 JNI_ENTRY_CHECKED(jsize,
1605 checked_jni_GetArrayLength(JNIEnv *env,
1606 jarray array))
1607 functionEnter(thr);
1608 IN_VM(
1609 check_is_array(thr, array);
1610 )
1611 jsize result = UNCHECKED()->GetArrayLength(env,array);
1612 functionExit(thr);
1613 return result;
1614 JNI_END
1615
1616 JNI_ENTRY_CHECKED(jobjectArray,
1617 checked_jni_NewObjectArray(JNIEnv *env,
1618 jsize len,
1619 jclass clazz,
1620 jobject init))
1621 functionEnter(thr);
1622 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1623 functionExit(thr);
1624 return result;
1625 JNI_END
1626
1627 JNI_ENTRY_CHECKED(jobject,
1628 checked_jni_GetObjectArrayElement(JNIEnv *env,
1629 jobjectArray array,
1630 jsize index))
1631 functionEnter(thr);
1632 IN_VM(
1633 check_is_obj_array(thr, array);
1634 )
1635 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1636 functionExit(thr);
1637 return result;
1638 JNI_END
1639
1640 JNI_ENTRY_CHECKED(void,
1641 checked_jni_SetObjectArrayElement(JNIEnv *env,
1642 jobjectArray array,
1643 jsize index,
1644 jobject val))
1645 functionEnter(thr);
1646 IN_VM(
1647 check_is_obj_array(thr, array);
1648 )
1649 UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1650 functionExit(thr);
1651 JNI_END
1652
1653 #define WRAPPER_NewScalarArray(Return, Result) \
1654 JNI_ENTRY_CHECKED(Return, \
1655 checked_jni_New##Result##Array(JNIEnv *env, \
1656 jsize len)) \
1657 functionEnter(thr); \
1658 Return result = UNCHECKED()->New##Result##Array(env,len); \
1659 functionExit(thr); \
1660 return (Return) result; \
1661 JNI_END
1662
1663 WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1664 WRAPPER_NewScalarArray(jbyteArray, Byte)
1665 WRAPPER_NewScalarArray(jshortArray, Short)
1666 WRAPPER_NewScalarArray(jcharArray, Char)
1667 WRAPPER_NewScalarArray(jintArray, Int)
1668 WRAPPER_NewScalarArray(jlongArray, Long)
1669 WRAPPER_NewScalarArray(jfloatArray, Float)
1670 WRAPPER_NewScalarArray(jdoubleArray, Double)
1671
1672 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1673 JNI_ENTRY_CHECKED(ElementType *, \
1674 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1675 ElementType##Array array, \
1676 jboolean *isCopy)) \
1677 functionEnter(thr); \
1678 IN_VM( \
1679 check_primitive_array_type(thr, array, ElementTag); \
1680 ) \
1681 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1682 array, \
1683 isCopy); \
1684 if (result != NULL) { \
1685 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1686 } \
1687 functionExit(thr); \
1688 return result; \
1689 JNI_END
1690
1691 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1692 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte)
1693 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short)
1694 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char)
1695 WRAPPER_GetScalarArrayElements(T_INT, jint, Int)
1696 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long)
1697 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float)
1698 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double)
1699
1700 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1701 JNI_ENTRY_CHECKED(void, \
1702 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1703 ElementType##Array array, \
1704 ElementType *elems, \
1705 jint mode)) \
1706 functionEnterExceptionAllowed(thr); \
1707 IN_VM( \
1708 check_primitive_array_type(thr, array, ElementTag); \
1709 ASSERT_OOPS_ALLOWED; \
1710 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1711 ) \
1712 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1713 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \
1714 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1715 functionExit(thr); \
1716 JNI_END
1717
1718 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1719 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte)
1720 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short)
1721 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char)
1722 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int)
1723 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long)
1724 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float)
1725 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double)
1726
1727 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1728 JNI_ENTRY_CHECKED(void, \
1729 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1730 ElementType##Array array, \
1731 jsize start, \
1732 jsize len, \
1733 ElementType *buf)) \
1734 functionEnter(thr); \
1735 IN_VM( \
1736 check_primitive_array_type(thr, array, ElementTag); \
1737 ) \
1738 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1739 functionExit(thr); \
1740 JNI_END
1741
1742 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1743 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte)
1744 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short)
1745 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char)
1746 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int)
1747 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long)
1748 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float)
1749 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1750
1751 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1752 JNI_ENTRY_CHECKED(void, \
1753 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1754 ElementType##Array array, \
1755 jsize start, \
1756 jsize len, \
1757 const ElementType *buf)) \
1758 functionEnter(thr); \
1759 IN_VM( \
1760 check_primitive_array_type(thr, array, ElementTag); \
1761 ) \
1762 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1763 functionExit(thr); \
1764 JNI_END
1765
1766 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1767 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte)
1768 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short)
1769 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char)
1770 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int)
1771 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long)
1772 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float)
1773 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1774
1775 JNI_ENTRY_CHECKED(jint,
1776 checked_jni_RegisterNatives(JNIEnv *env,
1777 jclass clazz,
1778 const JNINativeMethod *methods,
1779 jint nMethods))
1780 functionEnter(thr);
1781 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1782 functionExit(thr);
1783 return result;
1784 JNI_END
1785
1786 JNI_ENTRY_CHECKED(jint,
1787 checked_jni_UnregisterNatives(JNIEnv *env,
1788 jclass clazz))
1789 functionEnter(thr);
1790 jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1791 functionExit(thr);
1792 return result;
1793 JNI_END
1794
1795 JNI_ENTRY_CHECKED(jint,
1796 checked_jni_MonitorEnter(JNIEnv *env,
1797 jobject obj))
1798 functionEnter(thr);
1799 IN_VM(
1800 jniCheck::validate_object(thr, obj);
1801 )
1802 jint result = UNCHECKED()->MonitorEnter(env,obj);
1803 functionExit(thr);
1804 return result;
1805 JNI_END
1806
1807 JNI_ENTRY_CHECKED(jint,
1808 checked_jni_MonitorExit(JNIEnv *env,
1809 jobject obj))
1810 functionEnterExceptionAllowed(thr);
1811 IN_VM(
1812 jniCheck::validate_object(thr, obj);
1813 )
1814 jint result = UNCHECKED()->MonitorExit(env,obj);
1815 functionExit(thr);
1816 return result;
1817 JNI_END
1818
1819 JNI_ENTRY_CHECKED(jint,
1820 checked_jni_GetJavaVM(JNIEnv *env,
1821 JavaVM **vm))
1822 functionEnter(thr);
1823 jint result = UNCHECKED()->GetJavaVM(env,vm);
1824 functionExit(thr);
1825 return result;
1826 JNI_END
1827
1828 JNI_ENTRY_CHECKED(void,
1829 checked_jni_GetStringRegion(JNIEnv *env,
1830 jstring str,
1831 jsize start,
1832 jsize len,
1833 jchar *buf))
1834 functionEnter(thr);
1835 IN_VM(
1836 checkString(thr, str);
1837 )
1838 UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1839 functionExit(thr);
1840 JNI_END
1841
1842 JNI_ENTRY_CHECKED(void,
1843 checked_jni_GetStringUTFRegion(JNIEnv *env,
1844 jstring str,
1845 jsize start,
1846 jsize len,
1847 char *buf))
1848 functionEnter(thr);
1849 IN_VM(
1850 checkString(thr, str);
1851 )
1852 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1853 functionExit(thr);
1854 JNI_END
1855
1856 JNI_ENTRY_CHECKED(void *,
1857 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1858 jarray array,
1859 jboolean *isCopy))
1860 functionEnterCritical(thr);
1861 IN_VM(
1862 check_is_primitive_array(thr, array);
1863 )
1864 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1865 if (result != NULL) {
1866 result = check_jni_wrap_copy_array(thr, array, result);
1867 }
1868 functionExit(thr);
1869 return result;
1870 JNI_END
1871
1872 JNI_ENTRY_CHECKED(void,
1873 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1874 jarray array,
1875 void *carray,
1876 jint mode))
1877 functionEnterCriticalExceptionAllowed(thr);
1878 IN_VM(
1879 check_is_primitive_array(thr, array);
1880 )
1881 // Check the element array...
1882 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode);
1883 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1884 functionExit(thr);
1885 JNI_END
1886
1887 JNI_ENTRY_CHECKED(const jchar*,
1888 checked_jni_GetStringCritical(JNIEnv *env,
1889 jstring string,
1890 jboolean *isCopy))
1891 functionEnterCritical(thr);
1892 IN_VM(
1893 checkString(thr, string);
1894 )
1895 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1896 functionExit(thr);
1897 return result;
1898 JNI_END
1899
1900 JNI_ENTRY_CHECKED(void,
1901 checked_jni_ReleaseStringCritical(JNIEnv *env,
1902 jstring str,
1903 const jchar *chars))
1904 functionEnterCriticalExceptionAllowed(thr);
1905 IN_VM(
1906 checkString(thr, str);
1907 )
1908 /* The Hotspot JNI code does not use the parameters, so just check the
1909 * string parameter as a minor sanity check
1910 */
1911 UNCHECKED()->ReleaseStringCritical(env, str, chars);
1912 functionExit(thr);
1913 JNI_END
1914
1915 JNI_ENTRY_CHECKED(jweak,
1916 checked_jni_NewWeakGlobalRef(JNIEnv *env,
1917 jobject obj))
1918 functionEnter(thr);
1919 IN_VM(
1920 if (obj != NULL) {
1921 jniCheck::validate_handle(thr, obj);
1922 }
1923 )
1924 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1925 functionExit(thr);
1926 return result;
1927 JNI_END
1928
1929 JNI_ENTRY_CHECKED(void,
1930 checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1931 jweak ref))
1932 functionEnterExceptionAllowed(thr);
1933 UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1934 functionExit(thr);
1935 JNI_END
1936
1937 JNI_ENTRY_CHECKED(jboolean,
1938 checked_jni_ExceptionCheck(JNIEnv *env))
1939 thr->clear_pending_jni_exception_check();
1940 functionEnterExceptionAllowed(thr);
1941 jboolean result = UNCHECKED()->ExceptionCheck(env);
1942 functionExit(thr);
1943 return result;
1944 JNI_END
1945
1946 JNI_ENTRY_CHECKED(jobject,
1947 checked_jni_NewDirectByteBuffer(JNIEnv *env,
1948 void *address,
1949 jlong capacity))
1950 functionEnter(thr);
1951 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1952 functionExit(thr);
1953 return result;
1954 JNI_END
1955
1956 JNI_ENTRY_CHECKED(void *,
1957 checked_jni_GetDirectBufferAddress(JNIEnv *env,
1958 jobject buf))
1959 functionEnter(thr);
1960 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1961 functionExit(thr);
1962 return result;
1963 JNI_END
1964
1965 JNI_ENTRY_CHECKED(jlong,
1966 checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1967 jobject buf))
1968 functionEnter(thr);
1969 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1970 functionExit(thr);
1971 return result;
1972 JNI_END
1973
1974 JNI_ENTRY_CHECKED(jobjectRefType,
1975 checked_jni_GetObjectRefType(JNIEnv *env,
1976 jobject obj))
1977 functionEnter(thr);
1978 /* validate the object being passed */
1979 IN_VM(
1980 jniCheck::validate_object(thr, obj);
1981 )
1982 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1983 functionExit(thr);
1984 return result;
1985 JNI_END
1986
1987
1988 JNI_ENTRY_CHECKED(jint,
1989 checked_jni_GetVersion(JNIEnv *env))
1990 functionEnter(thr);
1991 jint result = UNCHECKED()->GetVersion(env);
1992 functionExit(thr);
1993 return result;
1994 JNI_END
1995
1996 JNI_ENTRY_CHECKED(jobject,
1997 checked_jni_GetModule(JNIEnv *env,
1998 jclass clazz))
1999 functionEnter(thr);
2000 IN_VM(
2001 jniCheck::validate_class(thr, clazz, false);
2002 )
2003 jobject result = UNCHECKED()->GetModule(env,clazz);
2004 functionExit(thr);
2005 return result;
2006 JNI_END
2007
2008 /*
2009 * Structure containing all checked jni functions
2010 */
2011 struct JNINativeInterface_ checked_jni_NativeInterface = {
2012 NULL,
2013 NULL,
2014 NULL,
2015
2016 NULL,
2017
2018 checked_jni_GetVersion,
2019
2020 checked_jni_DefineClass,
2021 checked_jni_FindClass,
2022
2023 checked_jni_FromReflectedMethod,
2024 checked_jni_FromReflectedField,
2025
2026 checked_jni_ToReflectedMethod,
2027
2028 checked_jni_GetSuperclass,
2029 checked_jni_IsAssignableFrom,
2030
2031 checked_jni_ToReflectedField,
2032
2033 checked_jni_Throw,
2034 checked_jni_ThrowNew,
2035 checked_jni_ExceptionOccurred,
2036 checked_jni_ExceptionDescribe,
2037 checked_jni_ExceptionClear,
2038 checked_jni_FatalError,
2039
2040 checked_jni_PushLocalFrame,
2041 checked_jni_PopLocalFrame,
2042
2043 checked_jni_NewGlobalRef,
2044 checked_jni_DeleteGlobalRef,
2045 checked_jni_DeleteLocalRef,
2046 checked_jni_IsSameObject,
2047
2048 checked_jni_NewLocalRef,
2049 checked_jni_EnsureLocalCapacity,
2050
2051 checked_jni_AllocObject,
2052 checked_jni_NewObject,
2053 checked_jni_NewObjectV,
2054 checked_jni_NewObjectA,
2055
2056 checked_jni_GetObjectClass,
2057 checked_jni_IsInstanceOf,
2058
2059 checked_jni_GetMethodID,
2060
2061 checked_jni_CallObjectMethod,
2062 checked_jni_CallObjectMethodV,
2063 checked_jni_CallObjectMethodA,
2064 checked_jni_CallBooleanMethod,
2065 checked_jni_CallBooleanMethodV,
2066 checked_jni_CallBooleanMethodA,
2067 checked_jni_CallByteMethod,
2068 checked_jni_CallByteMethodV,
2069 checked_jni_CallByteMethodA,
2070 checked_jni_CallCharMethod,
2071 checked_jni_CallCharMethodV,
2072 checked_jni_CallCharMethodA,
2073 checked_jni_CallShortMethod,
2074 checked_jni_CallShortMethodV,
2075 checked_jni_CallShortMethodA,
2076 checked_jni_CallIntMethod,
2077 checked_jni_CallIntMethodV,
2078 checked_jni_CallIntMethodA,
2079 checked_jni_CallLongMethod,
2080 checked_jni_CallLongMethodV,
2081 checked_jni_CallLongMethodA,
2082 checked_jni_CallFloatMethod,
2083 checked_jni_CallFloatMethodV,
2084 checked_jni_CallFloatMethodA,
2085 checked_jni_CallDoubleMethod,
2086 checked_jni_CallDoubleMethodV,
2087 checked_jni_CallDoubleMethodA,
2088 checked_jni_CallVoidMethod,
2089 checked_jni_CallVoidMethodV,
2090 checked_jni_CallVoidMethodA,
2091
2092 checked_jni_CallNonvirtualObjectMethod,
2093 checked_jni_CallNonvirtualObjectMethodV,
2094 checked_jni_CallNonvirtualObjectMethodA,
2095 checked_jni_CallNonvirtualBooleanMethod,
2096 checked_jni_CallNonvirtualBooleanMethodV,
2097 checked_jni_CallNonvirtualBooleanMethodA,
2098 checked_jni_CallNonvirtualByteMethod,
2099 checked_jni_CallNonvirtualByteMethodV,
2100 checked_jni_CallNonvirtualByteMethodA,
2101 checked_jni_CallNonvirtualCharMethod,
2102 checked_jni_CallNonvirtualCharMethodV,
2103 checked_jni_CallNonvirtualCharMethodA,
2104 checked_jni_CallNonvirtualShortMethod,
2105 checked_jni_CallNonvirtualShortMethodV,
2106 checked_jni_CallNonvirtualShortMethodA,
2107 checked_jni_CallNonvirtualIntMethod,
2108 checked_jni_CallNonvirtualIntMethodV,
2109 checked_jni_CallNonvirtualIntMethodA,
2110 checked_jni_CallNonvirtualLongMethod,
2111 checked_jni_CallNonvirtualLongMethodV,
2112 checked_jni_CallNonvirtualLongMethodA,
2113 checked_jni_CallNonvirtualFloatMethod,
2114 checked_jni_CallNonvirtualFloatMethodV,
2115 checked_jni_CallNonvirtualFloatMethodA,
2116 checked_jni_CallNonvirtualDoubleMethod,
2117 checked_jni_CallNonvirtualDoubleMethodV,
2118 checked_jni_CallNonvirtualDoubleMethodA,
2119 checked_jni_CallNonvirtualVoidMethod,
2120 checked_jni_CallNonvirtualVoidMethodV,
2121 checked_jni_CallNonvirtualVoidMethodA,
2122
2123 checked_jni_GetFieldID,
2124
2125 checked_jni_GetObjectField,
2126 checked_jni_GetBooleanField,
2127 checked_jni_GetByteField,
2128 checked_jni_GetCharField,
2129 checked_jni_GetShortField,
2130 checked_jni_GetIntField,
2131 checked_jni_GetLongField,
2132 checked_jni_GetFloatField,
2133 checked_jni_GetDoubleField,
2134
2135 checked_jni_SetObjectField,
2136 checked_jni_SetBooleanField,
2137 checked_jni_SetByteField,
2138 checked_jni_SetCharField,
2139 checked_jni_SetShortField,
2140 checked_jni_SetIntField,
2141 checked_jni_SetLongField,
2142 checked_jni_SetFloatField,
2143 checked_jni_SetDoubleField,
2144
2145 checked_jni_GetStaticMethodID,
2146
2147 checked_jni_CallStaticObjectMethod,
2148 checked_jni_CallStaticObjectMethodV,
2149 checked_jni_CallStaticObjectMethodA,
2150 checked_jni_CallStaticBooleanMethod,
2151 checked_jni_CallStaticBooleanMethodV,
2152 checked_jni_CallStaticBooleanMethodA,
2153 checked_jni_CallStaticByteMethod,
2154 checked_jni_CallStaticByteMethodV,
2155 checked_jni_CallStaticByteMethodA,
2156 checked_jni_CallStaticCharMethod,
2157 checked_jni_CallStaticCharMethodV,
2158 checked_jni_CallStaticCharMethodA,
2159 checked_jni_CallStaticShortMethod,
2160 checked_jni_CallStaticShortMethodV,
2161 checked_jni_CallStaticShortMethodA,
2162 checked_jni_CallStaticIntMethod,
2163 checked_jni_CallStaticIntMethodV,
2164 checked_jni_CallStaticIntMethodA,
2165 checked_jni_CallStaticLongMethod,
2166 checked_jni_CallStaticLongMethodV,
2167 checked_jni_CallStaticLongMethodA,
2168 checked_jni_CallStaticFloatMethod,
2169 checked_jni_CallStaticFloatMethodV,
2170 checked_jni_CallStaticFloatMethodA,
2171 checked_jni_CallStaticDoubleMethod,
2172 checked_jni_CallStaticDoubleMethodV,
2173 checked_jni_CallStaticDoubleMethodA,
2174 checked_jni_CallStaticVoidMethod,
2175 checked_jni_CallStaticVoidMethodV,
2176 checked_jni_CallStaticVoidMethodA,
2177
2178 checked_jni_GetStaticFieldID,
2179
2180 checked_jni_GetStaticObjectField,
2181 checked_jni_GetStaticBooleanField,
2182 checked_jni_GetStaticByteField,
2183 checked_jni_GetStaticCharField,
2184 checked_jni_GetStaticShortField,
2185 checked_jni_GetStaticIntField,
2186 checked_jni_GetStaticLongField,
2187 checked_jni_GetStaticFloatField,
2188 checked_jni_GetStaticDoubleField,
2189
2190 checked_jni_SetStaticObjectField,
2191 checked_jni_SetStaticBooleanField,
2192 checked_jni_SetStaticByteField,
2193 checked_jni_SetStaticCharField,
2194 checked_jni_SetStaticShortField,
2195 checked_jni_SetStaticIntField,
2196 checked_jni_SetStaticLongField,
2197 checked_jni_SetStaticFloatField,
2198 checked_jni_SetStaticDoubleField,
2199
2200 checked_jni_NewString,
2201 checked_jni_GetStringLength,
2202 checked_jni_GetStringChars,
2203 checked_jni_ReleaseStringChars,
2204
2205 checked_jni_NewStringUTF,
2206 checked_jni_GetStringUTFLength,
2207 checked_jni_GetStringUTFChars,
2208 checked_jni_ReleaseStringUTFChars,
2209
2210 checked_jni_GetArrayLength,
2211
2212 checked_jni_NewObjectArray,
2213 checked_jni_GetObjectArrayElement,
2214 checked_jni_SetObjectArrayElement,
2215
2216 checked_jni_NewBooleanArray,
2217 checked_jni_NewByteArray,
2218 checked_jni_NewCharArray,
2219 checked_jni_NewShortArray,
2220 checked_jni_NewIntArray,
2221 checked_jni_NewLongArray,
2222 checked_jni_NewFloatArray,
2223 checked_jni_NewDoubleArray,
2224
2225 checked_jni_GetBooleanArrayElements,
2226 checked_jni_GetByteArrayElements,
2227 checked_jni_GetCharArrayElements,
2228 checked_jni_GetShortArrayElements,
2229 checked_jni_GetIntArrayElements,
2230 checked_jni_GetLongArrayElements,
2231 checked_jni_GetFloatArrayElements,
2232 checked_jni_GetDoubleArrayElements,
2233
2234 checked_jni_ReleaseBooleanArrayElements,
2235 checked_jni_ReleaseByteArrayElements,
2236 checked_jni_ReleaseCharArrayElements,
2237 checked_jni_ReleaseShortArrayElements,
2238 checked_jni_ReleaseIntArrayElements,
2239 checked_jni_ReleaseLongArrayElements,
2240 checked_jni_ReleaseFloatArrayElements,
2241 checked_jni_ReleaseDoubleArrayElements,
2242
2243 checked_jni_GetBooleanArrayRegion,
2244 checked_jni_GetByteArrayRegion,
2245 checked_jni_GetCharArrayRegion,
2246 checked_jni_GetShortArrayRegion,
2247 checked_jni_GetIntArrayRegion,
2248 checked_jni_GetLongArrayRegion,
2249 checked_jni_GetFloatArrayRegion,
2250 checked_jni_GetDoubleArrayRegion,
2251
2252 checked_jni_SetBooleanArrayRegion,
2253 checked_jni_SetByteArrayRegion,
2254 checked_jni_SetCharArrayRegion,
2255 checked_jni_SetShortArrayRegion,
2256 checked_jni_SetIntArrayRegion,
2257 checked_jni_SetLongArrayRegion,
2258 checked_jni_SetFloatArrayRegion,
2259 checked_jni_SetDoubleArrayRegion,
2260
2261 checked_jni_RegisterNatives,
2262 checked_jni_UnregisterNatives,
2263
2264 checked_jni_MonitorEnter,
2265 checked_jni_MonitorExit,
2266
2267 checked_jni_GetJavaVM,
2268
2269 checked_jni_GetStringRegion,
2270 checked_jni_GetStringUTFRegion,
2271
2272 checked_jni_GetPrimitiveArrayCritical,
2273 checked_jni_ReleasePrimitiveArrayCritical,
2274
2275 checked_jni_GetStringCritical,
2276 checked_jni_ReleaseStringCritical,
2277
2278 checked_jni_NewWeakGlobalRef,
2279 checked_jni_DeleteWeakGlobalRef,
2280
2281 checked_jni_ExceptionCheck,
2282
2283 checked_jni_NewDirectByteBuffer,
2284 checked_jni_GetDirectBufferAddress,
2285 checked_jni_GetDirectBufferCapacity,
2286
2287 // New 1.6 Features
2288
2289 checked_jni_GetObjectRefType,
2290
2291 // Module Features
2292
2293 checked_jni_GetModule
2294 };
2295
2296
2297 // Returns the function structure
2298 struct JNINativeInterface_* jni_functions_check() {
2299
2300 unchecked_jni_NativeInterface = jni_functions_nocheck();
2301
2302 // make sure the last pointer in the checked table is not null, indicating
2303 // an addition to the JNINativeInterface_ structure without initializing
2304 // it in the checked table.
2305 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \
2306 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)
2307 assert(*lastPtr != 0,
2308 "Mismatched JNINativeInterface tables, check for new entries");
2309
2310 // with -verbose:jni this message will print
2311 if (PrintJNIResolving) {
2312 tty->print_cr("Checked JNI functions are being used to " \
2313 "validate JNI usage");
2314 }
2315
2316 return &checked_jni_NativeInterface;
2317 }