1 /*
2 * Copyright (c) 2001, 2023, 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/vmClasses.hpp"
28 #include "classfile/vmSymbols.hpp"
29 #include "jni.h"
30 #include "jvm.h"
31 #include "logging/log.hpp"
32 #include "logging/logTag.hpp"
33 #include "memory/allocation.inline.hpp"
34 #include "memory/guardedMemory.hpp"
35 #include "oops/instanceKlass.hpp"
36 #include "oops/oop.inline.hpp"
37 #include "oops/symbol.hpp"
38 #include "prims/jniCheck.hpp"
39 #include "prims/jvm_misc.hpp"
40 #include "runtime/fieldDescriptor.inline.hpp"
41 #include "runtime/handles.inline.hpp"
42 #include "runtime/interfaceSupport.inline.hpp"
43 #include "runtime/javaThread.hpp"
44 #include "runtime/jfieldIDWorkaround.hpp"
45 #include "runtime/jniHandles.inline.hpp"
46 #include "utilities/formatBuffer.hpp"
47 #include "utilities/utf8.hpp"
48
49 // Heap objects are allowed to be directly referenced only in VM code,
50 // not in native code.
51
52 #define ASSERT_OOPS_ALLOWED \
53 assert(JavaThread::current()->thread_state() == _thread_in_vm, \
54 "jniCheck examining oops in bad state.")
55
56
57 // Execute the given block of source code with the thread in VM state.
58 // To do this, transition from the NATIVE state to the VM state, execute
59 // the code, and transition back. The ThreadInVMfromNative constructor
60 // performs the transition to VM state, its destructor restores the
61 // NATIVE state.
62
63 #define IN_VM(source_code) { \
64 { \
65 ThreadInVMfromNative __tiv(thr); \
66 source_code \
67 } \
68 }
69
70
71 /*
72 * DECLARATIONS
73 */
74
75 static struct JNINativeInterface_ * unchecked_jni_NativeInterface;
76
77
78 /*
79 * MACRO DEFINITIONS
80 */
81
82 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the
83 // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles
84 // to be created if a fatal error should occur.
85
86 // Check for thread not attached to VM; need to catch this before
87 // assertions in the wrapper routines might fire
88
89 // Check for env being the one value appropriate for this thread.
90
91 #define JNI_ENTRY_CHECKED(result_type, header) \
92 extern "C" { \
93 result_type JNICALL header { \
94 Thread* cur = Thread::current_or_null(); \
95 if (cur == nullptr || !cur->is_Java_thread()) { \
96 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \
97 os::abort(true); \
98 } \
99 JavaThread* thr = JavaThread::cast(cur); \
100 JNIEnv* xenv = thr->jni_environment(); \
101 if (env != xenv) { \
102 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \
103 } \
104 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thr)); \
105 VM_ENTRY_BASE(result_type, header, thr)
106
107
108 #define UNCHECKED() (unchecked_jni_NativeInterface)
109
110 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread";
111 static const char * warn_bad_class_descriptor1 = "JNI FindClass received a bad class descriptor \"";
112 static const char * warn_bad_class_descriptor2 = "\". A correct class descriptor " \
113 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases.";
114 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread";
115 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \
116 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical";
117 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI";
118 static const char * fatal_received_null_class = "JNI received a null class";
119 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class";
120 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";
121 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call";
122 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call";
123 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations";
124 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation";
125 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation";
126 static const char * fatal_non_array = "Non-array passed to JNI array operations";
127 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI";
128 static const char * fatal_should_be_static = "Non-static field ID passed to JNI";
129 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI";
130 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations";
131 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations";
132 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI";
133 static const char * fatal_null_object = "Null object passed to JNI";
134 static const char * fatal_wrong_field = "Wrong field ID passed to JNI";
135 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations";
136 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations";
137 static const char * fatal_non_string = "JNI string operation received a non-string";
138 static const char * fatal_non_utf8_class_name1 = "JNI class name is not a valid UTF8 string \"";
139 static const char * fatal_non_utf8_class_name2 = "\"";
140
141
142 // When in VM state:
143 static void ReportJNIWarning(JavaThread* thr, const char *msg) {
144 tty->print_cr("WARNING in native method: %s", msg);
145 thr->print_jni_stack();
146 }
147
148 // When in NATIVE state:
149 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
150 IN_VM(
151 ReportJNIFatalError(thr, msg);
152 )
153 }
154
155 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
156 IN_VM(
157 ReportJNIWarning(thr, msg);
158 )
159 }
160
161
162
163
164 /*
165 * SUPPORT FUNCTIONS
166 */
167
168 /**
169 * Check whether or not a programmer has actually checked for exceptions. According
170 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
171 *
172 * There are two cases where the programmer needs to check for exceptions without
173 * being able to first check an error code:
174 *
175 * - The JNI functions that invoke a Java method return the result of the Java method.
176 * The programmer must call ExceptionOccurred() to check for possible exceptions
177 * that occurred during the execution of the Java method.
178 *
179 * - Some of the JNI array access functions do not return an error code, but may
180 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException.
181 *
182 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
183 *
184 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning
185 * for these functions would be pedantic.
186 */
187 static inline void
188 check_pending_exception(JavaThread* thr) {
189 if (thr->has_pending_exception()) {
190 NativeReportJNIWarning(thr, "JNI call made with exception pending");
191 }
192 if (thr->is_pending_jni_exception_check()) {
193 IN_VM(
194 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s",
195 thr->get_pending_jni_exception_check());
196 thr->print_jni_stack();
197 )
198 thr->clear_pending_jni_exception_check(); // Just complain once
199 }
200 }
201
202 static inline void
203 functionEnterCritical(JavaThread* thr)
204 {
205 check_pending_exception(thr);
206 }
207
208 static inline void
209 functionEnterCriticalExceptionAllowed(JavaThread* thr)
210 {
211 }
212
213 static inline void
214 functionEnter(JavaThread* thr)
215 {
216 if (thr->in_critical()) {
217 tty->print_cr("%s", warn_other_function_in_critical);
218 }
219 check_pending_exception(thr);
220 }
221
222 static inline void
223 functionEnterExceptionAllowed(JavaThread* thr)
224 {
225 if (thr->in_critical()) {
226 tty->print_cr("%s", warn_other_function_in_critical);
227 }
228 }
229
230 static inline void
231 functionExit(JavaThread* thr)
232 {
233 // No checks at this time
234 }
235
236 static inline void
237 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
238 {
239 fieldDescriptor fd;
240
241 /* make sure it is a static field */
242 if (!jfieldIDWorkaround::is_static_jfieldID(fid))
243 ReportJNIFatalError(thr, fatal_should_be_static);
244
245 /* validate the class being passed */
246 ASSERT_OOPS_ALLOWED;
247 Klass* k_oop = jniCheck::validate_class(thr, cls, false);
248
249 /* check for proper subclass hierarchy */
250 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
251 Klass* f_oop = id->holder();
252 if (!k_oop->is_subtype_of(f_oop))
253 ReportJNIFatalError(thr, fatal_wrong_static_field);
254
255 /* check for proper field type */
256 if (!id->find_local_field(&fd))
257 ReportJNIFatalError(thr, fatal_static_field_not_found);
258 if ((fd.field_type() != ftype) &&
259 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT) &&
260 !(fd.field_type() == T_PRIMITIVE_OBJECT && ftype == T_OBJECT)) {
261 ReportJNIFatalError(thr, fatal_static_field_mismatch);
262 }
263 }
264
265 static inline void
266 checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)
267 {
268 fieldDescriptor fd;
269
270 /* make sure it is an instance field */
271 if (jfieldIDWorkaround::is_static_jfieldID(fid))
272 ReportJNIFatalError(thr, fatal_should_be_nonstatic);
273
274 /* validate the object being passed and then get its class */
275 ASSERT_OOPS_ALLOWED;
276 oop oopObj = jniCheck::validate_object(thr, obj);
277 if (oopObj == nullptr) {
278 ReportJNIFatalError(thr, fatal_null_object);
279 }
280 Klass* k_oop = oopObj->klass();
281
282 if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {
283 ReportJNIFatalError(thr, fatal_wrong_field);
284 }
285
286 /* make sure the field exists */
287 int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);
288 if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))
289 ReportJNIFatalError(thr, fatal_wrong_field);
290
291 /* check for proper field type */
292 if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,
293 false, &fd))
294 ReportJNIFatalError(thr, fatal_instance_field_not_found);
295
296 if ((fd.field_type() != ftype) &&
297 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT) &&
298 !(fd.field_type() == T_PRIMITIVE_OBJECT && ftype == T_OBJECT)) {
299 ReportJNIFatalError(thr, fatal_instance_field_mismatch);
300 }
301 }
302
303 static inline void
304 checkString(JavaThread* thr, jstring js)
305 {
306 ASSERT_OOPS_ALLOWED;
307 oop s = jniCheck::validate_object(thr, js);
308 if ((s == nullptr) || !java_lang_String::is_instance(s))
309 ReportJNIFatalError(thr, fatal_non_string);
310 }
311
312 static inline arrayOop
313 check_is_array(JavaThread* thr, jarray jArray)
314 {
315 ASSERT_OOPS_ALLOWED;
316 arrayOop aOop;
317
318 aOop = (arrayOop)jniCheck::validate_object(thr, jArray);
319 if (aOop == nullptr || !aOop->is_array()) {
320 ReportJNIFatalError(thr, fatal_non_array);
321 }
322 return aOop;
323 }
324
325 static inline arrayOop
326 check_is_primitive_array(JavaThread* thr, jarray jArray) {
327 arrayOop aOop = check_is_array(thr, jArray);
328
329 if (!aOop->is_typeArray()) {
330 ReportJNIFatalError(thr, fatal_prim_type_array_expected);
331 }
332 return aOop;
333 }
334
335 static inline void
336 check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)
337 {
338 BasicType array_type;
339 arrayOop aOop;
340
341 aOop = check_is_primitive_array(thr, jArray);
342 array_type = TypeArrayKlass::cast(aOop->klass())->element_type();
343 if (array_type != elementType) {
344 ReportJNIFatalError(thr, fatal_element_type_mismatch);
345 }
346 }
347
348 static inline void
349 check_is_obj_or_inline_array(JavaThread* thr, jarray jArray) {
350 arrayOop aOop = check_is_array(thr, jArray);
351 if (!aOop->is_objArray() && !aOop->is_flatArray()) {
352 ReportJNIFatalError(thr, fatal_object_array_expected);
353 }
354 }
355
356 /*
357 * Copy and wrap array elements for bounds checking.
358 * Remember the original elements (GuardedMemory::get_tag())
359 */
360 static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,
361 void* orig_elements) {
362 void* result;
363 IN_VM(
364 oop a = JNIHandles::resolve_non_null(array);
365 size_t len = arrayOop(a)->length() <<
366 TypeArrayKlass::cast(a->klass())->log2_element_size();
367 result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);
368 )
369 return result;
370 }
371
372 static void* check_wrapped_array(JavaThread* thr, const char* fn_name,
373 void* obj, void* carray, size_t* rsz) {
374 if (carray == nullptr) {
375 tty->print_cr("%s: elements vector null" PTR_FORMAT, fn_name, p2i(obj));
376 NativeReportJNIFatalError(thr, "Elements vector null");
377 }
378 GuardedMemory guarded(carray);
379 void* orig_result = guarded.get_tag();
380 if (!guarded.verify_guards()) {
381 tty->print_cr("%s: release array failed bounds check, incorrect pointer returned ? array: "
382 PTR_FORMAT " carray: " PTR_FORMAT, fn_name, p2i(obj), p2i(carray));
383 DEBUG_ONLY(guarded.print_on(tty);) // This may crash.
384 NativeReportJNIFatalError(thr, err_msg("%s: failed bounds check", fn_name));
385 }
386 if (orig_result == nullptr) {
387 tty->print_cr("%s: unrecognized elements. array: " PTR_FORMAT " carray: " PTR_FORMAT,
388 fn_name, p2i(obj), p2i(carray));
389 DEBUG_ONLY(guarded.print_on(tty);) // This may crash.
390 NativeReportJNIFatalError(thr, err_msg("%s: unrecognized elements", fn_name));
391 }
392 if (rsz != nullptr) {
393 *rsz = guarded.get_user_size();
394 }
395 return orig_result;
396 }
397
398 static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,
399 void* obj, void* carray, jint mode, jboolean is_critical) {
400 size_t sz;
401 void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);
402 switch (mode) {
403 case 0:
404 memcpy(orig_result, carray, sz);
405 GuardedMemory::free_copy(carray);
406 break;
407 case JNI_COMMIT:
408 memcpy(orig_result, carray, sz);
409 if (is_critical) {
410 // For ReleasePrimitiveArrayCritical we must free the internal buffer
411 // allocated through GuardedMemory.
412 GuardedMemory::free_copy(carray);
413 }
414 break;
415 case JNI_ABORT:
416 GuardedMemory::free_copy(carray);
417 break;
418 default:
419 tty->print_cr("%s: Unrecognized mode %i releasing array "
420 PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));
421 NativeReportJNIFatalError(thr, "Unrecognized array release mode");
422 }
423 return orig_result;
424 }
425
426 oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {
427 if ((obj != nullptr) && (JNIHandles::handle_type(thr, obj) != JNIInvalidRefType)) {
428 ASSERT_OOPS_ALLOWED;
429 return JNIHandles::resolve_external_guard(obj);
430 }
431 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
432 return nullptr;
433 }
434
435
436 Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) {
437 ASSERT_OOPS_ALLOWED;
438 // do the fast jmethodID check first
439 Method* m = Method::checked_resolve_jmethod_id(method_id);
440 if (m == nullptr) {
441 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
442 }
443 // jmethodIDs are handles in the class loader data,
444 // but that can be expensive so check it last
445 else if (!Method::is_method_id(method_id)) {
446 ReportJNIFatalError(thr, fatal_non_weak_method);
447 }
448 return m;
449 }
450
451
452 oop jniCheck::validate_object(JavaThread* thr, jobject obj) {
453 if (obj == nullptr) return nullptr;
454 ASSERT_OOPS_ALLOWED;
455 oop oopObj = jniCheck::validate_handle(thr, obj);
456 if (oopObj == nullptr) {
457 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
458 }
459 return oopObj;
460 }
461
462 // Warn if a class descriptor is in decorated form; class descriptors
463 // passed to JNI findClass should not be decorated unless they are
464 // array descriptors.
465 void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {
466 if (name == nullptr) return; // implementation accepts null so just return
467
468 size_t len = strlen(name);
469
470 if (len >= 2 &&
471 (name[0] == JVM_SIGNATURE_CLASS || name[0] == JVM_SIGNATURE_PRIMITIVE_OBJECT) && // 'L' or 'Q'
472 name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';'
473 char msg[JVM_MAXPATHLEN];
474 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s",
475 warn_bad_class_descriptor1, name, warn_bad_class_descriptor2);
476 ReportJNIWarning(thr, msg);
477 }
478
479 // Verify that the class name given is a valid utf8 string
480 if (!UTF8::is_legal_utf8((const unsigned char*)name, (int)strlen(name), false)) {
481 char msg[JVM_MAXPATHLEN];
482 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s", fatal_non_utf8_class_name1, name, fatal_non_utf8_class_name2);
483 ReportJNIFatalError(thr, msg);
484 }
485 }
486
487 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {
488 ASSERT_OOPS_ALLOWED;
489 oop mirror = jniCheck::validate_handle(thr, clazz);
490 if (mirror == nullptr) {
491 ReportJNIFatalError(thr, fatal_received_null_class);
492 }
493
494 if (mirror->klass() != vmClasses::Class_klass()) {
495 ReportJNIFatalError(thr, fatal_class_not_a_class);
496 }
497
498 Klass* k = java_lang_Class::as_Klass(mirror);
499 // Make allowances for primitive classes ...
500 if (!(k != nullptr || (allow_primitive && java_lang_Class::is_primitive(mirror)))) {
501 ReportJNIFatalError(thr, fatal_class_not_a_class);
502 }
503 return k;
504 }
505
506 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {
507 ASSERT_OOPS_ALLOWED;
508 assert(klass != nullptr, "klass argument must have a value");
509
510 if (!klass->is_instance_klass() ||
511 !klass->is_subclass_of(vmClasses::Throwable_klass())) {
512 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);
513 }
514 }
515
516 void jniCheck::validate_call(JavaThread* thr, jclass clazz, jmethodID method_id, jobject obj) {
517 ASSERT_OOPS_ALLOWED;
518 Method* m = jniCheck::validate_jmethod_id(thr, method_id);
519 InstanceKlass* holder = m->method_holder();
520
521 if (clazz != nullptr) {
522 Klass* k = jniCheck::validate_class(thr, clazz, false);
523 // Check that method is in the class, must be InstanceKlass
524 if (!InstanceKlass::cast(k)->is_subtype_of(holder)) {
525 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
526 }
527 }
528
529 if (obj != nullptr) {
530 oop recv = jniCheck::validate_object(thr, obj);
531 assert(recv != nullptr, "validate_object checks that");
532 Klass* rk = recv->klass();
533
534 // Check that the object is a subtype of method holder too.
535 if (!rk->is_subtype_of(holder)) {
536 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
537 }
538 }
539 }
540
541
542 /*
543 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
544 */
545
546 JNI_ENTRY_CHECKED(jclass,
547 checked_jni_DefineClass(JNIEnv *env,
548 const char *name,
549 jobject loader,
550 const jbyte *buf,
551 jsize len))
552 functionEnter(thr);
553 IN_VM(
554 jniCheck::validate_object(thr, loader);
555 )
556 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
557 functionExit(thr);
558 return result;
559 JNI_END
560
561 JNI_ENTRY_CHECKED(jclass,
562 checked_jni_FindClass(JNIEnv *env,
563 const char *name))
564 functionEnter(thr);
565 IN_VM(
566 jniCheck::validate_class_descriptor(thr, name);
567 )
568 jclass result = UNCHECKED()->FindClass(env, name);
569 functionExit(thr);
570 return result;
571 JNI_END
572
573 JNI_ENTRY_CHECKED(jmethodID,
574 checked_jni_FromReflectedMethod(JNIEnv *env,
575 jobject method))
576 functionEnter(thr);
577 IN_VM(
578 jniCheck::validate_object(thr, method);
579 )
580 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
581 functionExit(thr);
582 return result;
583 JNI_END
584
585 JNI_ENTRY_CHECKED(jfieldID,
586 checked_jni_FromReflectedField(JNIEnv *env,
587 jobject field))
588 functionEnter(thr);
589 IN_VM(
590 jniCheck::validate_object(thr, field);
591 )
592 jfieldID result = UNCHECKED()->FromReflectedField(env, field);
593 functionExit(thr);
594 return result;
595 JNI_END
596
597 JNI_ENTRY_CHECKED(jobject,
598 checked_jni_ToReflectedMethod(JNIEnv *env,
599 jclass cls,
600 jmethodID methodID,
601 jboolean isStatic))
602 functionEnter(thr);
603 IN_VM(
604 jniCheck::validate_call(thr, cls, methodID);
605 )
606 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
607 isStatic);
608 functionExit(thr);
609 return result;
610 JNI_END
611
612 JNI_ENTRY_CHECKED(jclass,
613 checked_jni_GetSuperclass(JNIEnv *env,
614 jclass sub))
615 functionEnter(thr);
616 IN_VM(
617 jniCheck::validate_class(thr, sub, true);
618 )
619 jclass result = UNCHECKED()->GetSuperclass(env, sub);
620 functionExit(thr);
621 return result;
622 JNI_END
623
624 JNI_ENTRY_CHECKED(jboolean,
625 checked_jni_IsAssignableFrom(JNIEnv *env,
626 jclass sub,
627 jclass sup))
628 functionEnter(thr);
629 IN_VM(
630 jniCheck::validate_class(thr, sub, true);
631 jniCheck::validate_class(thr, sup, true);
632 )
633 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
634 functionExit(thr);
635 return result;
636 JNI_END
637
638 JNI_ENTRY_CHECKED(jobject,
639 checked_jni_ToReflectedField(JNIEnv *env,
640 jclass cls,
641 jfieldID fieldID,
642 jboolean isStatic))
643 functionEnter(thr);
644 IN_VM(
645 jniCheck::validate_class(thr, cls, false);
646 )
647 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
648 isStatic);
649 functionExit(thr);
650 return result;
651 JNI_END
652
653 JNI_ENTRY_CHECKED(jint,
654 checked_jni_Throw(JNIEnv *env,
655 jthrowable obj))
656 functionEnter(thr);
657 IN_VM(
658 oop oopObj = jniCheck::validate_object(thr, obj);
659 if (oopObj == nullptr) {
660 // Unchecked Throw tolerates a null obj, so just warn
661 ReportJNIWarning(thr, "JNI Throw called with null throwable");
662 } else {
663 jniCheck::validate_throwable_klass(thr, oopObj->klass());
664 }
665 )
666 jint result = UNCHECKED()->Throw(env, obj);
667 functionExit(thr);
668 return result;
669 JNI_END
670
671 JNI_ENTRY_CHECKED(jint,
672 checked_jni_ThrowNew(JNIEnv *env,
673 jclass clazz,
674 const char *msg))
675 functionEnter(thr);
676 IN_VM(
677 Klass* k = jniCheck::validate_class(thr, clazz, false);
678 assert(k != nullptr, "validate_class shouldn't return null Klass*");
679 jniCheck::validate_throwable_klass(thr, k);
680 )
681 jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
682 functionExit(thr);
683 return result;
684 JNI_END
685
686 JNI_ENTRY_CHECKED(jthrowable,
687 checked_jni_ExceptionOccurred(JNIEnv *env))
688 thr->clear_pending_jni_exception_check();
689 functionEnterExceptionAllowed(thr);
690 jthrowable result = UNCHECKED()->ExceptionOccurred(env);
691 functionExit(thr);
692 return result;
693 JNI_END
694
695 JNI_ENTRY_CHECKED(void,
696 checked_jni_ExceptionDescribe(JNIEnv *env))
697 functionEnterExceptionAllowed(thr);
698 UNCHECKED()->ExceptionDescribe(env);
699 functionExit(thr);
700 JNI_END
701
702 JNI_ENTRY_CHECKED(void,
703 checked_jni_ExceptionClear(JNIEnv *env))
704 thr->clear_pending_jni_exception_check();
705 functionEnterExceptionAllowed(thr);
706 UNCHECKED()->ExceptionClear(env);
707 functionExit(thr);
708 JNI_END
709
710 JNI_ENTRY_CHECKED(void,
711 checked_jni_FatalError(JNIEnv *env,
712 const char *msg))
713 thr->clear_pending_jni_exception_check();
714 functionEnter(thr);
715 UNCHECKED()->FatalError(env, msg);
716 functionExit(thr);
717 JNI_END
718
719 JNI_ENTRY_CHECKED(jint,
720 checked_jni_PushLocalFrame(JNIEnv *env,
721 jint capacity))
722 functionEnterExceptionAllowed(thr);
723 if (capacity < 0)
724 NativeReportJNIFatalError(thr, "negative capacity");
725 jint result = UNCHECKED()->PushLocalFrame(env, capacity);
726 functionExit(thr);
727 return result;
728 JNI_END
729
730 JNI_ENTRY_CHECKED(jobject,
731 checked_jni_PopLocalFrame(JNIEnv *env,
732 jobject result))
733 functionEnterExceptionAllowed(thr);
734 jobject res = UNCHECKED()->PopLocalFrame(env, result);
735 functionExit(thr);
736 return res;
737 JNI_END
738
739 JNI_ENTRY_CHECKED(jobject,
740 checked_jni_NewGlobalRef(JNIEnv *env,
741 jobject lobj))
742 functionEnter(thr);
743 IN_VM(
744 if (lobj != nullptr) {
745 jniCheck::validate_handle(thr, lobj);
746 }
747 )
748 jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
749 functionExit(thr);
750 return result;
751 JNI_END
752
753 JNI_ENTRY_CHECKED(void,
754 checked_jni_DeleteGlobalRef(JNIEnv *env,
755 jobject gref))
756 functionEnterExceptionAllowed(thr);
757 IN_VM(
758 jniCheck::validate_object(thr, gref);
759 if (gref && !JNIHandles::is_global_handle(gref)) {
760 ReportJNIFatalError(thr,
761 "Invalid global JNI handle passed to DeleteGlobalRef");
762 }
763 )
764 UNCHECKED()->DeleteGlobalRef(env,gref);
765 functionExit(thr);
766 JNI_END
767
768 JNI_ENTRY_CHECKED(void,
769 checked_jni_DeleteLocalRef(JNIEnv *env,
770 jobject obj))
771 functionEnterExceptionAllowed(thr);
772 IN_VM(
773 jniCheck::validate_object(thr, obj);
774 if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
775 JNIHandles::is_frame_handle(thr, obj)))
776 ReportJNIFatalError(thr,
777 "Invalid local JNI handle passed to DeleteLocalRef");
778 )
779 UNCHECKED()->DeleteLocalRef(env, obj);
780 functionExit(thr);
781 JNI_END
782
783 JNI_ENTRY_CHECKED(jboolean,
784 checked_jni_IsSameObject(JNIEnv *env,
785 jobject obj1,
786 jobject obj2))
787 functionEnterExceptionAllowed(thr);
788 IN_VM(
789 /* This JNI function can be used to compare weak global references
790 * to nullptr objects. If the handles are valid, but contain nullptr,
791 * then don't attempt to validate the object.
792 */
793 if (obj1 != nullptr && jniCheck::validate_handle(thr, obj1) != nullptr) {
794 jniCheck::validate_object(thr, obj1);
795 }
796 if (obj2 != nullptr && jniCheck::validate_handle(thr, obj2) != nullptr) {
797 jniCheck::validate_object(thr, obj2);
798 }
799 )
800 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
801 functionExit(thr);
802 return result;
803 JNI_END
804
805 JNI_ENTRY_CHECKED(jobject,
806 checked_jni_NewLocalRef(JNIEnv *env,
807 jobject ref))
808 functionEnter(thr);
809 IN_VM(
810 if (ref != nullptr) {
811 jniCheck::validate_handle(thr, ref);
812 }
813 )
814 jobject result = UNCHECKED()->NewLocalRef(env, ref);
815 functionExit(thr);
816 return result;
817 JNI_END
818
819 JNI_ENTRY_CHECKED(jint,
820 checked_jni_EnsureLocalCapacity(JNIEnv *env,
821 jint capacity))
822 functionEnter(thr);
823 if (capacity < 0) {
824 NativeReportJNIFatalError(thr, "negative capacity");
825 }
826 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
827 functionExit(thr);
828 return result;
829 JNI_END
830
831 JNI_ENTRY_CHECKED(jobject,
832 checked_jni_AllocObject(JNIEnv *env,
833 jclass clazz))
834 functionEnter(thr);
835 IN_VM(
836 jniCheck::validate_class(thr, clazz, false);
837 )
838 jobject result = UNCHECKED()->AllocObject(env,clazz);
839 functionExit(thr);
840 return result;
841 JNI_END
842
843 JNI_ENTRY_CHECKED(jobject,
844 checked_jni_NewObject(JNIEnv *env,
845 jclass clazz,
846 jmethodID methodID,
847 ...))
848 functionEnter(thr);
849 va_list args;
850 IN_VM(
851 jniCheck::validate_call(thr, clazz, methodID);
852 )
853 va_start(args, methodID);
854 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
855 va_end(args);
856 functionExit(thr);
857 return result;
858 JNI_END
859
860 JNI_ENTRY_CHECKED(jobject,
861 checked_jni_NewObjectV(JNIEnv *env,
862 jclass clazz,
863 jmethodID methodID,
864 va_list args))
865 functionEnter(thr);
866 IN_VM(
867 jniCheck::validate_call(thr, clazz, methodID);
868 )
869 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
870 functionExit(thr);
871 return result;
872 JNI_END
873
874 JNI_ENTRY_CHECKED(jobject,
875 checked_jni_NewObjectA(JNIEnv *env,
876 jclass clazz,
877 jmethodID methodID,
878 const jvalue *args))
879 functionEnter(thr);
880 IN_VM(
881 jniCheck::validate_call(thr, clazz, methodID);
882 )
883 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
884 functionExit(thr);
885 return result;
886 JNI_END
887
888 JNI_ENTRY_CHECKED(jclass,
889 checked_jni_GetObjectClass(JNIEnv *env,
890 jobject obj))
891 functionEnter(thr);
892 IN_VM(
893 jniCheck::validate_object(thr, obj);
894 )
895 jclass result = UNCHECKED()->GetObjectClass(env,obj);
896 functionExit(thr);
897 return result;
898 JNI_END
899
900 JNI_ENTRY_CHECKED(jboolean,
901 checked_jni_IsInstanceOf(JNIEnv *env,
902 jobject obj,
903 jclass clazz))
904 functionEnter(thr);
905 IN_VM(
906 jniCheck::validate_object(thr, obj);
907 jniCheck::validate_class(thr, clazz, true);
908 )
909 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
910 functionExit(thr);
911 return result;
912 JNI_END
913
914 JNI_ENTRY_CHECKED(jmethodID,
915 checked_jni_GetMethodID(JNIEnv *env,
916 jclass clazz,
917 const char *name,
918 const char *sig))
919 functionEnter(thr);
920 IN_VM(
921 jniCheck::validate_class(thr, clazz, false);
922 )
923 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
924 functionExit(thr);
925 return result;
926 JNI_END
927
928 #define WRAPPER_CallMethod(ResultType, Result) \
929 JNI_ENTRY_CHECKED(ResultType, \
930 checked_jni_Call##Result##Method(JNIEnv *env, \
931 jobject obj, \
932 jmethodID methodID, \
933 ...)) \
934 functionEnter(thr); \
935 va_list args; \
936 IN_VM( \
937 jniCheck::validate_call(thr, nullptr, methodID, obj); \
938 ) \
939 va_start(args,methodID); \
940 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
941 args); \
942 va_end(args); \
943 thr->set_pending_jni_exception_check("Call"#Result"Method"); \
944 functionExit(thr); \
945 return result; \
946 JNI_END \
947 \
948 JNI_ENTRY_CHECKED(ResultType, \
949 checked_jni_Call##Result##MethodV(JNIEnv *env, \
950 jobject obj, \
951 jmethodID methodID, \
952 va_list args)) \
953 functionEnter(thr); \
954 IN_VM(\
955 jniCheck::validate_call(thr, nullptr, methodID, obj); \
956 ) \
957 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
958 args); \
959 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
960 functionExit(thr); \
961 return result; \
962 JNI_END \
963 \
964 JNI_ENTRY_CHECKED(ResultType, \
965 checked_jni_Call##Result##MethodA(JNIEnv *env, \
966 jobject obj, \
967 jmethodID methodID, \
968 const jvalue * args)) \
969 functionEnter(thr); \
970 IN_VM( \
971 jniCheck::validate_call(thr, nullptr, methodID, obj); \
972 ) \
973 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
974 args); \
975 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
976 functionExit(thr); \
977 return result; \
978 JNI_END
979
980 WRAPPER_CallMethod(jobject,Object)
981 WRAPPER_CallMethod(jboolean,Boolean)
982 WRAPPER_CallMethod(jbyte,Byte)
983 WRAPPER_CallMethod(jshort,Short)
984 WRAPPER_CallMethod(jchar,Char)
985 WRAPPER_CallMethod(jint,Int)
986 WRAPPER_CallMethod(jlong,Long)
987 WRAPPER_CallMethod(jfloat,Float)
988 WRAPPER_CallMethod(jdouble,Double)
989
990 JNI_ENTRY_CHECKED(void,
991 checked_jni_CallVoidMethod(JNIEnv *env, \
992 jobject obj, \
993 jmethodID methodID, \
994 ...))
995 functionEnter(thr);
996 va_list args;
997 IN_VM(
998 jniCheck::validate_call(thr, nullptr, methodID, obj);
999 )
1000 va_start(args,methodID);
1001 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1002 va_end(args);
1003 thr->set_pending_jni_exception_check("CallVoidMethod");
1004 functionExit(thr);
1005 JNI_END
1006
1007 JNI_ENTRY_CHECKED(void,
1008 checked_jni_CallVoidMethodV(JNIEnv *env,
1009 jobject obj,
1010 jmethodID methodID,
1011 va_list args))
1012 functionEnter(thr);
1013 IN_VM(
1014 jniCheck::validate_call(thr, nullptr, methodID, obj);
1015 )
1016 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1017 thr->set_pending_jni_exception_check("CallVoidMethodV");
1018 functionExit(thr);
1019 JNI_END
1020
1021 JNI_ENTRY_CHECKED(void,
1022 checked_jni_CallVoidMethodA(JNIEnv *env,
1023 jobject obj,
1024 jmethodID methodID,
1025 const jvalue * args))
1026 functionEnter(thr);
1027 IN_VM(
1028 jniCheck::validate_call(thr, nullptr, methodID, obj);
1029 )
1030 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1031 thr->set_pending_jni_exception_check("CallVoidMethodA");
1032 functionExit(thr);
1033 JNI_END
1034
1035 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1036 JNI_ENTRY_CHECKED(ResultType, \
1037 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1038 jobject obj, \
1039 jclass clazz, \
1040 jmethodID methodID, \
1041 ...)) \
1042 functionEnter(thr); \
1043 va_list args; \
1044 IN_VM( \
1045 jniCheck::validate_call(thr, clazz, methodID, obj); \
1046 ) \
1047 va_start(args,methodID); \
1048 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1049 obj, \
1050 clazz, \
1051 methodID,\
1052 args); \
1053 va_end(args); \
1054 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1055 functionExit(thr); \
1056 return result; \
1057 JNI_END \
1058 \
1059 JNI_ENTRY_CHECKED(ResultType, \
1060 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1061 jobject obj, \
1062 jclass clazz, \
1063 jmethodID methodID, \
1064 va_list args)) \
1065 functionEnter(thr); \
1066 IN_VM( \
1067 jniCheck::validate_call(thr, clazz, methodID, obj); \
1068 ) \
1069 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1070 obj, \
1071 clazz, \
1072 methodID,\
1073 args); \
1074 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1075 functionExit(thr); \
1076 return result; \
1077 JNI_END \
1078 \
1079 JNI_ENTRY_CHECKED(ResultType, \
1080 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1081 jobject obj, \
1082 jclass clazz, \
1083 jmethodID methodID, \
1084 const jvalue * args)) \
1085 functionEnter(thr); \
1086 IN_VM( \
1087 jniCheck::validate_call(thr, clazz, methodID, obj); \
1088 ) \
1089 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1090 obj, \
1091 clazz, \
1092 methodID,\
1093 args); \
1094 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1095 functionExit(thr); \
1096 return result; \
1097 JNI_END
1098
1099 WRAPPER_CallNonvirtualMethod(jobject,Object)
1100 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1101 WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1102 WRAPPER_CallNonvirtualMethod(jshort,Short)
1103 WRAPPER_CallNonvirtualMethod(jchar,Char)
1104 WRAPPER_CallNonvirtualMethod(jint,Int)
1105 WRAPPER_CallNonvirtualMethod(jlong,Long)
1106 WRAPPER_CallNonvirtualMethod(jfloat,Float)
1107 WRAPPER_CallNonvirtualMethod(jdouble,Double)
1108
1109 JNI_ENTRY_CHECKED(void,
1110 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1111 jobject obj,
1112 jclass clazz,
1113 jmethodID methodID,
1114 ...))
1115 functionEnter(thr);
1116 va_list args;
1117 IN_VM(
1118 jniCheck::validate_call(thr, clazz, methodID, obj);
1119 )
1120 va_start(args,methodID);
1121 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1122 va_end(args);
1123 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1124 functionExit(thr);
1125 JNI_END
1126
1127 JNI_ENTRY_CHECKED(void,
1128 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1129 jobject obj,
1130 jclass clazz,
1131 jmethodID methodID,
1132 va_list args))
1133 functionEnter(thr);
1134 IN_VM(
1135 jniCheck::validate_call(thr, clazz, methodID, obj);
1136 )
1137 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1138 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1139 functionExit(thr);
1140 JNI_END
1141
1142 JNI_ENTRY_CHECKED(void,
1143 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1144 jobject obj,
1145 jclass clazz,
1146 jmethodID methodID,
1147 const jvalue * args))
1148 functionEnter(thr);
1149 IN_VM(
1150 jniCheck::validate_call(thr, clazz, methodID, obj);
1151 )
1152 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1153 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1154 functionExit(thr);
1155 JNI_END
1156
1157 JNI_ENTRY_CHECKED(jfieldID,
1158 checked_jni_GetFieldID(JNIEnv *env,
1159 jclass clazz,
1160 const char *name,
1161 const char *sig))
1162 functionEnter(thr);
1163 IN_VM(
1164 jniCheck::validate_class(thr, clazz, false);
1165 )
1166 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1167 functionExit(thr);
1168 return result;
1169 JNI_END
1170
1171 #define WRAPPER_GetField(ReturnType,Result,FieldType) \
1172 JNI_ENTRY_CHECKED(ReturnType, \
1173 checked_jni_Get##Result##Field(JNIEnv *env, \
1174 jobject obj, \
1175 jfieldID fieldID)) \
1176 functionEnter(thr); \
1177 IN_VM( \
1178 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1179 ) \
1180 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1181 functionExit(thr); \
1182 return result; \
1183 JNI_END
1184
1185 WRAPPER_GetField(jobject, Object, T_OBJECT)
1186 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1187 WRAPPER_GetField(jbyte, Byte, T_BYTE)
1188 WRAPPER_GetField(jshort, Short, T_SHORT)
1189 WRAPPER_GetField(jchar, Char, T_CHAR)
1190 WRAPPER_GetField(jint, Int, T_INT)
1191 WRAPPER_GetField(jlong, Long, T_LONG)
1192 WRAPPER_GetField(jfloat, Float, T_FLOAT)
1193 WRAPPER_GetField(jdouble, Double, T_DOUBLE)
1194
1195 #define WRAPPER_SetField(ValueType,Result,FieldType) \
1196 JNI_ENTRY_CHECKED(void, \
1197 checked_jni_Set##Result##Field(JNIEnv *env, \
1198 jobject obj, \
1199 jfieldID fieldID, \
1200 ValueType val)) \
1201 functionEnter(thr); \
1202 IN_VM( \
1203 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1204 ) \
1205 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1206 functionExit(thr); \
1207 JNI_END
1208
1209 WRAPPER_SetField(jobject, Object, T_OBJECT)
1210 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1211 WRAPPER_SetField(jbyte, Byte, T_BYTE)
1212 WRAPPER_SetField(jshort, Short, T_SHORT)
1213 WRAPPER_SetField(jchar, Char, T_CHAR)
1214 WRAPPER_SetField(jint, Int, T_INT)
1215 WRAPPER_SetField(jlong, Long, T_LONG)
1216 WRAPPER_SetField(jfloat, Float, T_FLOAT)
1217 WRAPPER_SetField(jdouble, Double, T_DOUBLE)
1218
1219
1220 JNI_ENTRY_CHECKED(jmethodID,
1221 checked_jni_GetStaticMethodID(JNIEnv *env,
1222 jclass clazz,
1223 const char *name,
1224 const char *sig))
1225 functionEnter(thr);
1226 IN_VM(
1227 jniCheck::validate_class(thr, clazz, false);
1228 )
1229 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1230 functionExit(thr);
1231 return result;
1232 JNI_END
1233
1234 #define WRAPPER_CallStaticMethod(ReturnType,Result) \
1235 JNI_ENTRY_CHECKED(ReturnType, \
1236 checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1237 jclass clazz, \
1238 jmethodID methodID, \
1239 ...)) \
1240 functionEnter(thr); \
1241 va_list args; \
1242 IN_VM( \
1243 jniCheck::validate_call(thr, clazz, methodID); \
1244 ) \
1245 va_start(args,methodID); \
1246 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1247 clazz, \
1248 methodID, \
1249 args); \
1250 va_end(args); \
1251 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1252 functionExit(thr); \
1253 return result; \
1254 JNI_END \
1255 \
1256 JNI_ENTRY_CHECKED(ReturnType, \
1257 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1258 jclass clazz, \
1259 jmethodID methodID,\
1260 va_list args)) \
1261 functionEnter(thr); \
1262 IN_VM( \
1263 jniCheck::validate_call(thr, clazz, methodID); \
1264 ) \
1265 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1266 clazz, \
1267 methodID, \
1268 args); \
1269 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1270 functionExit(thr); \
1271 return result; \
1272 JNI_END \
1273 \
1274 JNI_ENTRY_CHECKED(ReturnType, \
1275 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1276 jclass clazz, \
1277 jmethodID methodID, \
1278 const jvalue *args)) \
1279 functionEnter(thr); \
1280 IN_VM( \
1281 jniCheck::validate_call(thr, clazz, methodID); \
1282 ) \
1283 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1284 clazz, \
1285 methodID, \
1286 args); \
1287 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1288 functionExit(thr); \
1289 return result; \
1290 JNI_END
1291
1292 WRAPPER_CallStaticMethod(jobject,Object)
1293 WRAPPER_CallStaticMethod(jboolean,Boolean)
1294 WRAPPER_CallStaticMethod(jbyte,Byte)
1295 WRAPPER_CallStaticMethod(jshort,Short)
1296 WRAPPER_CallStaticMethod(jchar,Char)
1297 WRAPPER_CallStaticMethod(jint,Int)
1298 WRAPPER_CallStaticMethod(jlong,Long)
1299 WRAPPER_CallStaticMethod(jfloat,Float)
1300 WRAPPER_CallStaticMethod(jdouble,Double)
1301
1302 JNI_ENTRY_CHECKED(void,
1303 checked_jni_CallStaticVoidMethod(JNIEnv *env,
1304 jclass cls,
1305 jmethodID methodID,
1306 ...))
1307 functionEnter(thr);
1308 va_list args;
1309 IN_VM(
1310 jniCheck::validate_call(thr, cls, methodID);
1311 )
1312 va_start(args,methodID);
1313 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1314 va_end(args);
1315 thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1316 functionExit(thr);
1317 JNI_END
1318
1319 JNI_ENTRY_CHECKED(void,
1320 checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1321 jclass cls,
1322 jmethodID methodID,
1323 va_list args))
1324 functionEnter(thr);
1325 IN_VM(
1326 jniCheck::validate_call(thr, cls, methodID);
1327 )
1328 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1329 thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1330 functionExit(thr);
1331 JNI_END
1332
1333 JNI_ENTRY_CHECKED(void,
1334 checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1335 jclass cls,
1336 jmethodID methodID,
1337 const jvalue * args))
1338 functionEnter(thr);
1339 IN_VM(
1340 jniCheck::validate_call(thr, cls, methodID);
1341 )
1342 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1343 thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1344 functionExit(thr);
1345 JNI_END
1346
1347 JNI_ENTRY_CHECKED(jfieldID,
1348 checked_jni_GetStaticFieldID(JNIEnv *env,
1349 jclass clazz,
1350 const char *name,
1351 const char *sig))
1352 functionEnter(thr);
1353 IN_VM(
1354 jniCheck::validate_class(thr, clazz, false);
1355 )
1356 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1357 functionExit(thr);
1358 return result;
1359 JNI_END
1360
1361 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1362 JNI_ENTRY_CHECKED(ReturnType, \
1363 checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1364 jclass clazz, \
1365 jfieldID fieldID)) \
1366 functionEnter(thr); \
1367 IN_VM( \
1368 jniCheck::validate_class(thr, clazz, false); \
1369 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1370 ) \
1371 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1372 clazz, \
1373 fieldID); \
1374 functionExit(thr); \
1375 return result; \
1376 JNI_END
1377
1378 WRAPPER_GetStaticField(jobject, Object, T_OBJECT)
1379 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1380 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE)
1381 WRAPPER_GetStaticField(jshort, Short, T_SHORT)
1382 WRAPPER_GetStaticField(jchar, Char, T_CHAR)
1383 WRAPPER_GetStaticField(jint, Int, T_INT)
1384 WRAPPER_GetStaticField(jlong, Long, T_LONG)
1385 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT)
1386 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE)
1387
1388 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1389 JNI_ENTRY_CHECKED(void, \
1390 checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1391 jclass clazz, \
1392 jfieldID fieldID, \
1393 ValueType value)) \
1394 functionEnter(thr); \
1395 IN_VM( \
1396 jniCheck::validate_class(thr, clazz, false); \
1397 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1398 ) \
1399 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1400 functionExit(thr); \
1401 JNI_END
1402
1403 WRAPPER_SetStaticField(jobject, Object, T_OBJECT)
1404 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1405 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE)
1406 WRAPPER_SetStaticField(jshort, Short, T_SHORT)
1407 WRAPPER_SetStaticField(jchar, Char, T_CHAR)
1408 WRAPPER_SetStaticField(jint, Int, T_INT)
1409 WRAPPER_SetStaticField(jlong, Long, T_LONG)
1410 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT)
1411 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE)
1412
1413
1414 JNI_ENTRY_CHECKED(jstring,
1415 checked_jni_NewString(JNIEnv *env,
1416 const jchar *unicode,
1417 jsize len))
1418 functionEnter(thr);
1419 jstring result = UNCHECKED()->NewString(env,unicode,len);
1420 functionExit(thr);
1421 return result;
1422 JNI_END
1423
1424 JNI_ENTRY_CHECKED(jsize,
1425 checked_jni_GetStringLength(JNIEnv *env,
1426 jstring str))
1427 functionEnter(thr);
1428 IN_VM(
1429 checkString(thr, str);
1430 )
1431 jsize result = UNCHECKED()->GetStringLength(env,str);
1432 functionExit(thr);
1433 return result;
1434 JNI_END
1435
1436 // Arbitrary (but well-known) tag
1437 const void* STRING_TAG = (void*)0x47114711;
1438
1439 JNI_ENTRY_CHECKED(const jchar *,
1440 checked_jni_GetStringChars(JNIEnv *env,
1441 jstring str,
1442 jboolean *isCopy))
1443 functionEnter(thr);
1444 IN_VM(
1445 checkString(thr, str);
1446 )
1447 jchar* new_result = nullptr;
1448 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1449 assert (isCopy == nullptr || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1450 if (result != nullptr) {
1451 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for null termination
1452 len *= sizeof(jchar);
1453 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1454 if (new_result == nullptr) {
1455 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1456 }
1457 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1458 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1459 FreeHeap((char*)result);
1460 }
1461 functionExit(thr);
1462 return new_result;
1463 JNI_END
1464
1465 JNI_ENTRY_CHECKED(void,
1466 checked_jni_ReleaseStringChars(JNIEnv *env,
1467 jstring str,
1468 const jchar *chars))
1469 functionEnterExceptionAllowed(thr);
1470 IN_VM(
1471 checkString(thr, str);
1472 )
1473 if (chars == nullptr) {
1474 // still do the unchecked call to allow dtrace probes
1475 UNCHECKED()->ReleaseStringChars(env,str,chars);
1476 }
1477 else {
1478 GuardedMemory guarded((void*)chars);
1479 if (!guarded.verify_guards()) {
1480 tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1481 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1482 guarded.print_on(tty);
1483 NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1484 "release chars failed bounds check.");
1485 }
1486 if (guarded.get_tag() != STRING_TAG) {
1487 tty->print_cr("ReleaseStringChars: called on something not allocated "
1488 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1489 p2i(str), p2i(chars));
1490 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1491 "not allocated by GetStringChars");
1492 }
1493 UNCHECKED()->ReleaseStringChars(env, str,
1494 (const jchar*) guarded.release_for_freeing());
1495 }
1496 functionExit(thr);
1497 JNI_END
1498
1499 JNI_ENTRY_CHECKED(jstring,
1500 checked_jni_NewStringUTF(JNIEnv *env,
1501 const char *utf))
1502 functionEnter(thr);
1503 jstring result = UNCHECKED()->NewStringUTF(env,utf);
1504 functionExit(thr);
1505 return result;
1506 JNI_END
1507
1508 JNI_ENTRY_CHECKED(jsize,
1509 checked_jni_GetStringUTFLength(JNIEnv *env,
1510 jstring str))
1511 functionEnter(thr);
1512 IN_VM(
1513 checkString(thr, str);
1514 )
1515 jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1516 functionExit(thr);
1517 return result;
1518 JNI_END
1519
1520 // Arbitrary (but well-known) tag - different than GetStringChars
1521 const void* STRING_UTF_TAG = (void*) 0x48124812;
1522
1523 JNI_ENTRY_CHECKED(const char *,
1524 checked_jni_GetStringUTFChars(JNIEnv *env,
1525 jstring str,
1526 jboolean *isCopy))
1527 functionEnter(thr);
1528 IN_VM(
1529 checkString(thr, str);
1530 )
1531 char* new_result = nullptr;
1532 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1533 assert (isCopy == nullptr || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1534 if (result != nullptr) {
1535 size_t len = strlen(result) + 1; // + 1 for null termination
1536 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1537 if (new_result == nullptr) {
1538 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1539 }
1540 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1541 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1542 FreeHeap((char*)result);
1543 }
1544 functionExit(thr);
1545 return new_result;
1546 JNI_END
1547
1548 JNI_ENTRY_CHECKED(void,
1549 checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1550 jstring str,
1551 const char* chars))
1552 functionEnterExceptionAllowed(thr);
1553 IN_VM(
1554 checkString(thr, str);
1555 )
1556 if (chars == nullptr) {
1557 // still do the unchecked call to allow dtrace probes
1558 UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1559 }
1560 else {
1561 GuardedMemory guarded((void*)chars);
1562 if (!guarded.verify_guards()) {
1563 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1564 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1565 guarded.print_on(tty);
1566 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1567 "release chars failed bounds check.");
1568 }
1569 if (guarded.get_tag() != STRING_UTF_TAG) {
1570 tty->print_cr("ReleaseStringUTFChars: called on something not "
1571 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1572 PTR_FORMAT, p2i(str), p2i(chars));
1573 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1574 "called on something not allocated by GetStringUTFChars");
1575 }
1576 UNCHECKED()->ReleaseStringUTFChars(env, str,
1577 (const char*) guarded.release_for_freeing());
1578 }
1579 functionExit(thr);
1580 JNI_END
1581
1582 JNI_ENTRY_CHECKED(jsize,
1583 checked_jni_GetArrayLength(JNIEnv *env,
1584 jarray array))
1585 functionEnter(thr);
1586 IN_VM(
1587 check_is_array(thr, array);
1588 )
1589 jsize result = UNCHECKED()->GetArrayLength(env,array);
1590 functionExit(thr);
1591 return result;
1592 JNI_END
1593
1594 JNI_ENTRY_CHECKED(jobjectArray,
1595 checked_jni_NewObjectArray(JNIEnv *env,
1596 jsize len,
1597 jclass clazz,
1598 jobject init))
1599 functionEnter(thr);
1600 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1601 functionExit(thr);
1602 return result;
1603 JNI_END
1604
1605 JNI_ENTRY_CHECKED(jobject,
1606 checked_jni_GetObjectArrayElement(JNIEnv *env,
1607 jobjectArray array,
1608 jsize index))
1609 functionEnter(thr);
1610 IN_VM(
1611 check_is_obj_or_inline_array(thr, array);
1612 )
1613 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1614 functionExit(thr);
1615 return result;
1616 JNI_END
1617
1618 JNI_ENTRY_CHECKED(void,
1619 checked_jni_SetObjectArrayElement(JNIEnv *env,
1620 jobjectArray array,
1621 jsize index,
1622 jobject val))
1623 functionEnter(thr);
1624 IN_VM(
1625 check_is_obj_or_inline_array(thr, array);
1626 )
1627 UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1628 functionExit(thr);
1629 JNI_END
1630
1631 #define WRAPPER_NewScalarArray(Return, Result) \
1632 JNI_ENTRY_CHECKED(Return, \
1633 checked_jni_New##Result##Array(JNIEnv *env, \
1634 jsize len)) \
1635 functionEnter(thr); \
1636 Return result = UNCHECKED()->New##Result##Array(env,len); \
1637 functionExit(thr); \
1638 return (Return) result; \
1639 JNI_END
1640
1641 WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1642 WRAPPER_NewScalarArray(jbyteArray, Byte)
1643 WRAPPER_NewScalarArray(jshortArray, Short)
1644 WRAPPER_NewScalarArray(jcharArray, Char)
1645 WRAPPER_NewScalarArray(jintArray, Int)
1646 WRAPPER_NewScalarArray(jlongArray, Long)
1647 WRAPPER_NewScalarArray(jfloatArray, Float)
1648 WRAPPER_NewScalarArray(jdoubleArray, Double)
1649
1650 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1651 JNI_ENTRY_CHECKED(ElementType *, \
1652 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1653 ElementType##Array array, \
1654 jboolean *isCopy)) \
1655 functionEnter(thr); \
1656 IN_VM( \
1657 check_primitive_array_type(thr, array, ElementTag); \
1658 ) \
1659 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1660 array, \
1661 isCopy); \
1662 if (result != nullptr) { \
1663 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1664 } \
1665 functionExit(thr); \
1666 return result; \
1667 JNI_END
1668
1669 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1670 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte)
1671 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short)
1672 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char)
1673 WRAPPER_GetScalarArrayElements(T_INT, jint, Int)
1674 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long)
1675 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float)
1676 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double)
1677
1678 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1679 JNI_ENTRY_CHECKED(void, \
1680 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1681 ElementType##Array array, \
1682 ElementType *elems, \
1683 jint mode)) \
1684 functionEnterExceptionAllowed(thr); \
1685 IN_VM( \
1686 check_primitive_array_type(thr, array, ElementTag); \
1687 ASSERT_OOPS_ALLOWED; \
1688 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1689 ) \
1690 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1691 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode, JNI_FALSE); \
1692 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1693 functionExit(thr); \
1694 JNI_END
1695
1696 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1697 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte)
1698 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short)
1699 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char)
1700 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int)
1701 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long)
1702 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float)
1703 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double)
1704
1705 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1706 JNI_ENTRY_CHECKED(void, \
1707 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1708 ElementType##Array array, \
1709 jsize start, \
1710 jsize len, \
1711 ElementType *buf)) \
1712 functionEnter(thr); \
1713 IN_VM( \
1714 check_primitive_array_type(thr, array, ElementTag); \
1715 ) \
1716 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1717 functionExit(thr); \
1718 JNI_END
1719
1720 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1721 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte)
1722 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short)
1723 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char)
1724 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int)
1725 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long)
1726 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float)
1727 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1728
1729 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1730 JNI_ENTRY_CHECKED(void, \
1731 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1732 ElementType##Array array, \
1733 jsize start, \
1734 jsize len, \
1735 const ElementType *buf)) \
1736 functionEnter(thr); \
1737 IN_VM( \
1738 check_primitive_array_type(thr, array, ElementTag); \
1739 ) \
1740 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1741 functionExit(thr); \
1742 JNI_END
1743
1744 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1745 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte)
1746 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short)
1747 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char)
1748 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int)
1749 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long)
1750 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float)
1751 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1752
1753 JNI_ENTRY_CHECKED(jint,
1754 checked_jni_RegisterNatives(JNIEnv *env,
1755 jclass clazz,
1756 const JNINativeMethod *methods,
1757 jint nMethods))
1758 functionEnter(thr);
1759 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1760 functionExit(thr);
1761 return result;
1762 JNI_END
1763
1764 JNI_ENTRY_CHECKED(jint,
1765 checked_jni_UnregisterNatives(JNIEnv *env,
1766 jclass clazz))
1767 functionEnter(thr);
1768 jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1769 functionExit(thr);
1770 return result;
1771 JNI_END
1772
1773 JNI_ENTRY_CHECKED(jint,
1774 checked_jni_MonitorEnter(JNIEnv *env,
1775 jobject obj))
1776 functionEnter(thr);
1777 IN_VM(
1778 jniCheck::validate_object(thr, obj);
1779 )
1780 jint result = UNCHECKED()->MonitorEnter(env,obj);
1781 functionExit(thr);
1782 return result;
1783 JNI_END
1784
1785 JNI_ENTRY_CHECKED(jint,
1786 checked_jni_MonitorExit(JNIEnv *env,
1787 jobject obj))
1788 functionEnterExceptionAllowed(thr);
1789 IN_VM(
1790 jniCheck::validate_object(thr, obj);
1791 )
1792 jint result = UNCHECKED()->MonitorExit(env,obj);
1793 functionExit(thr);
1794 return result;
1795 JNI_END
1796
1797 JNI_ENTRY_CHECKED(jint,
1798 checked_jni_GetJavaVM(JNIEnv *env,
1799 JavaVM **vm))
1800 functionEnter(thr);
1801 jint result = UNCHECKED()->GetJavaVM(env,vm);
1802 functionExit(thr);
1803 return result;
1804 JNI_END
1805
1806 JNI_ENTRY_CHECKED(void,
1807 checked_jni_GetStringRegion(JNIEnv *env,
1808 jstring str,
1809 jsize start,
1810 jsize len,
1811 jchar *buf))
1812 functionEnter(thr);
1813 IN_VM(
1814 checkString(thr, str);
1815 )
1816 UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1817 functionExit(thr);
1818 JNI_END
1819
1820 JNI_ENTRY_CHECKED(void,
1821 checked_jni_GetStringUTFRegion(JNIEnv *env,
1822 jstring str,
1823 jsize start,
1824 jsize len,
1825 char *buf))
1826 functionEnter(thr);
1827 IN_VM(
1828 checkString(thr, str);
1829 )
1830 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1831 functionExit(thr);
1832 JNI_END
1833
1834 JNI_ENTRY_CHECKED(void *,
1835 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1836 jarray array,
1837 jboolean *isCopy))
1838 functionEnterCritical(thr);
1839 IN_VM(
1840 check_is_primitive_array(thr, array);
1841 )
1842 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1843 if (result != nullptr) {
1844 result = check_jni_wrap_copy_array(thr, array, result);
1845 }
1846 functionExit(thr);
1847 return result;
1848 JNI_END
1849
1850 JNI_ENTRY_CHECKED(void,
1851 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1852 jarray array,
1853 void *carray,
1854 jint mode))
1855 functionEnterCriticalExceptionAllowed(thr);
1856 IN_VM(
1857 check_is_primitive_array(thr, array);
1858 )
1859 // Check the element array...
1860 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical",
1861 array, carray, mode, JNI_TRUE);
1862 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1863 functionExit(thr);
1864 JNI_END
1865
1866 JNI_ENTRY_CHECKED(const jchar*,
1867 checked_jni_GetStringCritical(JNIEnv *env,
1868 jstring string,
1869 jboolean *isCopy))
1870 functionEnterCritical(thr);
1871 IN_VM(
1872 checkString(thr, string);
1873 )
1874 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1875 functionExit(thr);
1876 return result;
1877 JNI_END
1878
1879 JNI_ENTRY_CHECKED(void,
1880 checked_jni_ReleaseStringCritical(JNIEnv *env,
1881 jstring str,
1882 const jchar *chars))
1883 functionEnterCriticalExceptionAllowed(thr);
1884 IN_VM(
1885 checkString(thr, str);
1886 )
1887 /* The Hotspot JNI code does not use the parameters, so just check the
1888 * string parameter as a minor sanity check
1889 */
1890 UNCHECKED()->ReleaseStringCritical(env, str, chars);
1891 functionExit(thr);
1892 JNI_END
1893
1894 JNI_ENTRY_CHECKED(jweak,
1895 checked_jni_NewWeakGlobalRef(JNIEnv *env,
1896 jobject obj))
1897 functionEnter(thr);
1898 IN_VM(
1899 if (obj != nullptr) {
1900 jniCheck::validate_handle(thr, obj);
1901 }
1902 )
1903 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1904 functionExit(thr);
1905 return result;
1906 JNI_END
1907
1908 JNI_ENTRY_CHECKED(void,
1909 checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1910 jweak ref))
1911 functionEnterExceptionAllowed(thr);
1912 IN_VM(
1913 if (ref && !JNIHandles::is_weak_global_handle(ref)) {
1914 ReportJNIFatalError(thr,
1915 "Invalid weak global JNI handle passed to DeleteWeakGlobalRef");
1916 }
1917 )
1918 UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1919 functionExit(thr);
1920 JNI_END
1921
1922 JNI_ENTRY_CHECKED(jboolean,
1923 checked_jni_ExceptionCheck(JNIEnv *env))
1924 thr->clear_pending_jni_exception_check();
1925 functionEnterExceptionAllowed(thr);
1926 jboolean result = UNCHECKED()->ExceptionCheck(env);
1927 functionExit(thr);
1928 return result;
1929 JNI_END
1930
1931 JNI_ENTRY_CHECKED(jobject,
1932 checked_jni_NewDirectByteBuffer(JNIEnv *env,
1933 void *address,
1934 jlong capacity))
1935 functionEnter(thr);
1936 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1937 functionExit(thr);
1938 return result;
1939 JNI_END
1940
1941 JNI_ENTRY_CHECKED(void *,
1942 checked_jni_GetDirectBufferAddress(JNIEnv *env,
1943 jobject buf))
1944 functionEnter(thr);
1945 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1946 functionExit(thr);
1947 return result;
1948 JNI_END
1949
1950 JNI_ENTRY_CHECKED(jlong,
1951 checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1952 jobject buf))
1953 functionEnter(thr);
1954 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1955 functionExit(thr);
1956 return result;
1957 JNI_END
1958
1959 JNI_ENTRY_CHECKED(jobjectRefType,
1960 checked_jni_GetObjectRefType(JNIEnv *env,
1961 jobject obj))
1962 functionEnter(thr);
1963 /* validate the object being passed */
1964 IN_VM(
1965 jniCheck::validate_object(thr, obj);
1966 )
1967 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1968 functionExit(thr);
1969 return result;
1970 JNI_END
1971
1972
1973 JNI_ENTRY_CHECKED(jint,
1974 checked_jni_GetVersion(JNIEnv *env))
1975 functionEnter(thr);
1976 jint result = UNCHECKED()->GetVersion(env);
1977 functionExit(thr);
1978 return result;
1979 JNI_END
1980
1981 JNI_ENTRY_CHECKED(jobject,
1982 checked_jni_GetModule(JNIEnv *env,
1983 jclass clazz))
1984 functionEnter(thr);
1985 jobject result = UNCHECKED()->GetModule(env, clazz);
1986 functionExit(thr);
1987 return result;
1988 JNI_END
1989
1990 JNI_ENTRY_CHECKED(jboolean,
1991 checked_jni_IsVirtualThread(JNIEnv *env,
1992 jobject obj))
1993 functionEnter(thr);
1994 jboolean result = UNCHECKED()->IsVirtualThread(env, obj);
1995 functionExit(thr);
1996 return result;
1997 JNI_END
1998
1999 /*
2000 * Structure containing all checked jni functions
2001 */
2002 struct JNINativeInterface_ checked_jni_NativeInterface = {
2003 nullptr,
2004 nullptr,
2005 nullptr,
2006
2007 nullptr,
2008
2009 checked_jni_GetVersion,
2010
2011 checked_jni_DefineClass,
2012 checked_jni_FindClass,
2013
2014 checked_jni_FromReflectedMethod,
2015 checked_jni_FromReflectedField,
2016
2017 checked_jni_ToReflectedMethod,
2018
2019 checked_jni_GetSuperclass,
2020 checked_jni_IsAssignableFrom,
2021
2022 checked_jni_ToReflectedField,
2023
2024 checked_jni_Throw,
2025 checked_jni_ThrowNew,
2026 checked_jni_ExceptionOccurred,
2027 checked_jni_ExceptionDescribe,
2028 checked_jni_ExceptionClear,
2029 checked_jni_FatalError,
2030
2031 checked_jni_PushLocalFrame,
2032 checked_jni_PopLocalFrame,
2033
2034 checked_jni_NewGlobalRef,
2035 checked_jni_DeleteGlobalRef,
2036 checked_jni_DeleteLocalRef,
2037 checked_jni_IsSameObject,
2038
2039 checked_jni_NewLocalRef,
2040 checked_jni_EnsureLocalCapacity,
2041
2042 checked_jni_AllocObject,
2043 checked_jni_NewObject,
2044 checked_jni_NewObjectV,
2045 checked_jni_NewObjectA,
2046
2047 checked_jni_GetObjectClass,
2048 checked_jni_IsInstanceOf,
2049
2050 checked_jni_GetMethodID,
2051
2052 checked_jni_CallObjectMethod,
2053 checked_jni_CallObjectMethodV,
2054 checked_jni_CallObjectMethodA,
2055 checked_jni_CallBooleanMethod,
2056 checked_jni_CallBooleanMethodV,
2057 checked_jni_CallBooleanMethodA,
2058 checked_jni_CallByteMethod,
2059 checked_jni_CallByteMethodV,
2060 checked_jni_CallByteMethodA,
2061 checked_jni_CallCharMethod,
2062 checked_jni_CallCharMethodV,
2063 checked_jni_CallCharMethodA,
2064 checked_jni_CallShortMethod,
2065 checked_jni_CallShortMethodV,
2066 checked_jni_CallShortMethodA,
2067 checked_jni_CallIntMethod,
2068 checked_jni_CallIntMethodV,
2069 checked_jni_CallIntMethodA,
2070 checked_jni_CallLongMethod,
2071 checked_jni_CallLongMethodV,
2072 checked_jni_CallLongMethodA,
2073 checked_jni_CallFloatMethod,
2074 checked_jni_CallFloatMethodV,
2075 checked_jni_CallFloatMethodA,
2076 checked_jni_CallDoubleMethod,
2077 checked_jni_CallDoubleMethodV,
2078 checked_jni_CallDoubleMethodA,
2079 checked_jni_CallVoidMethod,
2080 checked_jni_CallVoidMethodV,
2081 checked_jni_CallVoidMethodA,
2082
2083 checked_jni_CallNonvirtualObjectMethod,
2084 checked_jni_CallNonvirtualObjectMethodV,
2085 checked_jni_CallNonvirtualObjectMethodA,
2086 checked_jni_CallNonvirtualBooleanMethod,
2087 checked_jni_CallNonvirtualBooleanMethodV,
2088 checked_jni_CallNonvirtualBooleanMethodA,
2089 checked_jni_CallNonvirtualByteMethod,
2090 checked_jni_CallNonvirtualByteMethodV,
2091 checked_jni_CallNonvirtualByteMethodA,
2092 checked_jni_CallNonvirtualCharMethod,
2093 checked_jni_CallNonvirtualCharMethodV,
2094 checked_jni_CallNonvirtualCharMethodA,
2095 checked_jni_CallNonvirtualShortMethod,
2096 checked_jni_CallNonvirtualShortMethodV,
2097 checked_jni_CallNonvirtualShortMethodA,
2098 checked_jni_CallNonvirtualIntMethod,
2099 checked_jni_CallNonvirtualIntMethodV,
2100 checked_jni_CallNonvirtualIntMethodA,
2101 checked_jni_CallNonvirtualLongMethod,
2102 checked_jni_CallNonvirtualLongMethodV,
2103 checked_jni_CallNonvirtualLongMethodA,
2104 checked_jni_CallNonvirtualFloatMethod,
2105 checked_jni_CallNonvirtualFloatMethodV,
2106 checked_jni_CallNonvirtualFloatMethodA,
2107 checked_jni_CallNonvirtualDoubleMethod,
2108 checked_jni_CallNonvirtualDoubleMethodV,
2109 checked_jni_CallNonvirtualDoubleMethodA,
2110 checked_jni_CallNonvirtualVoidMethod,
2111 checked_jni_CallNonvirtualVoidMethodV,
2112 checked_jni_CallNonvirtualVoidMethodA,
2113
2114 checked_jni_GetFieldID,
2115
2116 checked_jni_GetObjectField,
2117 checked_jni_GetBooleanField,
2118 checked_jni_GetByteField,
2119 checked_jni_GetCharField,
2120 checked_jni_GetShortField,
2121 checked_jni_GetIntField,
2122 checked_jni_GetLongField,
2123 checked_jni_GetFloatField,
2124 checked_jni_GetDoubleField,
2125
2126 checked_jni_SetObjectField,
2127 checked_jni_SetBooleanField,
2128 checked_jni_SetByteField,
2129 checked_jni_SetCharField,
2130 checked_jni_SetShortField,
2131 checked_jni_SetIntField,
2132 checked_jni_SetLongField,
2133 checked_jni_SetFloatField,
2134 checked_jni_SetDoubleField,
2135
2136 checked_jni_GetStaticMethodID,
2137
2138 checked_jni_CallStaticObjectMethod,
2139 checked_jni_CallStaticObjectMethodV,
2140 checked_jni_CallStaticObjectMethodA,
2141 checked_jni_CallStaticBooleanMethod,
2142 checked_jni_CallStaticBooleanMethodV,
2143 checked_jni_CallStaticBooleanMethodA,
2144 checked_jni_CallStaticByteMethod,
2145 checked_jni_CallStaticByteMethodV,
2146 checked_jni_CallStaticByteMethodA,
2147 checked_jni_CallStaticCharMethod,
2148 checked_jni_CallStaticCharMethodV,
2149 checked_jni_CallStaticCharMethodA,
2150 checked_jni_CallStaticShortMethod,
2151 checked_jni_CallStaticShortMethodV,
2152 checked_jni_CallStaticShortMethodA,
2153 checked_jni_CallStaticIntMethod,
2154 checked_jni_CallStaticIntMethodV,
2155 checked_jni_CallStaticIntMethodA,
2156 checked_jni_CallStaticLongMethod,
2157 checked_jni_CallStaticLongMethodV,
2158 checked_jni_CallStaticLongMethodA,
2159 checked_jni_CallStaticFloatMethod,
2160 checked_jni_CallStaticFloatMethodV,
2161 checked_jni_CallStaticFloatMethodA,
2162 checked_jni_CallStaticDoubleMethod,
2163 checked_jni_CallStaticDoubleMethodV,
2164 checked_jni_CallStaticDoubleMethodA,
2165 checked_jni_CallStaticVoidMethod,
2166 checked_jni_CallStaticVoidMethodV,
2167 checked_jni_CallStaticVoidMethodA,
2168
2169 checked_jni_GetStaticFieldID,
2170
2171 checked_jni_GetStaticObjectField,
2172 checked_jni_GetStaticBooleanField,
2173 checked_jni_GetStaticByteField,
2174 checked_jni_GetStaticCharField,
2175 checked_jni_GetStaticShortField,
2176 checked_jni_GetStaticIntField,
2177 checked_jni_GetStaticLongField,
2178 checked_jni_GetStaticFloatField,
2179 checked_jni_GetStaticDoubleField,
2180
2181 checked_jni_SetStaticObjectField,
2182 checked_jni_SetStaticBooleanField,
2183 checked_jni_SetStaticByteField,
2184 checked_jni_SetStaticCharField,
2185 checked_jni_SetStaticShortField,
2186 checked_jni_SetStaticIntField,
2187 checked_jni_SetStaticLongField,
2188 checked_jni_SetStaticFloatField,
2189 checked_jni_SetStaticDoubleField,
2190
2191 checked_jni_NewString,
2192 checked_jni_GetStringLength,
2193 checked_jni_GetStringChars,
2194 checked_jni_ReleaseStringChars,
2195
2196 checked_jni_NewStringUTF,
2197 checked_jni_GetStringUTFLength,
2198 checked_jni_GetStringUTFChars,
2199 checked_jni_ReleaseStringUTFChars,
2200
2201 checked_jni_GetArrayLength,
2202
2203 checked_jni_NewObjectArray,
2204 checked_jni_GetObjectArrayElement,
2205 checked_jni_SetObjectArrayElement,
2206
2207 checked_jni_NewBooleanArray,
2208 checked_jni_NewByteArray,
2209 checked_jni_NewCharArray,
2210 checked_jni_NewShortArray,
2211 checked_jni_NewIntArray,
2212 checked_jni_NewLongArray,
2213 checked_jni_NewFloatArray,
2214 checked_jni_NewDoubleArray,
2215
2216 checked_jni_GetBooleanArrayElements,
2217 checked_jni_GetByteArrayElements,
2218 checked_jni_GetCharArrayElements,
2219 checked_jni_GetShortArrayElements,
2220 checked_jni_GetIntArrayElements,
2221 checked_jni_GetLongArrayElements,
2222 checked_jni_GetFloatArrayElements,
2223 checked_jni_GetDoubleArrayElements,
2224
2225 checked_jni_ReleaseBooleanArrayElements,
2226 checked_jni_ReleaseByteArrayElements,
2227 checked_jni_ReleaseCharArrayElements,
2228 checked_jni_ReleaseShortArrayElements,
2229 checked_jni_ReleaseIntArrayElements,
2230 checked_jni_ReleaseLongArrayElements,
2231 checked_jni_ReleaseFloatArrayElements,
2232 checked_jni_ReleaseDoubleArrayElements,
2233
2234 checked_jni_GetBooleanArrayRegion,
2235 checked_jni_GetByteArrayRegion,
2236 checked_jni_GetCharArrayRegion,
2237 checked_jni_GetShortArrayRegion,
2238 checked_jni_GetIntArrayRegion,
2239 checked_jni_GetLongArrayRegion,
2240 checked_jni_GetFloatArrayRegion,
2241 checked_jni_GetDoubleArrayRegion,
2242
2243 checked_jni_SetBooleanArrayRegion,
2244 checked_jni_SetByteArrayRegion,
2245 checked_jni_SetCharArrayRegion,
2246 checked_jni_SetShortArrayRegion,
2247 checked_jni_SetIntArrayRegion,
2248 checked_jni_SetLongArrayRegion,
2249 checked_jni_SetFloatArrayRegion,
2250 checked_jni_SetDoubleArrayRegion,
2251
2252 checked_jni_RegisterNatives,
2253 checked_jni_UnregisterNatives,
2254
2255 checked_jni_MonitorEnter,
2256 checked_jni_MonitorExit,
2257
2258 checked_jni_GetJavaVM,
2259
2260 checked_jni_GetStringRegion,
2261 checked_jni_GetStringUTFRegion,
2262
2263 checked_jni_GetPrimitiveArrayCritical,
2264 checked_jni_ReleasePrimitiveArrayCritical,
2265
2266 checked_jni_GetStringCritical,
2267 checked_jni_ReleaseStringCritical,
2268
2269 checked_jni_NewWeakGlobalRef,
2270 checked_jni_DeleteWeakGlobalRef,
2271
2272 checked_jni_ExceptionCheck,
2273
2274 checked_jni_NewDirectByteBuffer,
2275 checked_jni_GetDirectBufferAddress,
2276 checked_jni_GetDirectBufferCapacity,
2277
2278 // New 1.6 Features
2279
2280 checked_jni_GetObjectRefType,
2281
2282 // Module Features
2283
2284 checked_jni_GetModule,
2285
2286 // Virtual threads
2287
2288 checked_jni_IsVirtualThread
2289 };
2290
2291
2292 // Returns the function structure
2293 struct JNINativeInterface_* jni_functions_check() {
2294
2295 unchecked_jni_NativeInterface = jni_functions_nocheck();
2296
2297 // make sure the last pointer in the checked table is not null, indicating
2298 // an addition to the JNINativeInterface_ structure without initializing
2299 // it in the checked table.
2300 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \
2301 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)
2302 assert(*lastPtr != 0,
2303 "Mismatched JNINativeInterface tables, check for new entries");
2304
2305 // with -verbose:jni this message will print
2306 log_debug(jni, resolve)("Checked JNI functions are being used to validate JNI usage");
2307
2308 return &checked_jni_NativeInterface;
2309 }