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