1 /*
2 * Copyright (c) 2001, 2021, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "jni.h"
27 #include "jvm.h"
28 #include "classfile/javaClasses.inline.hpp"
29 #include "classfile/vmClasses.hpp"
30 #include "classfile/vmSymbols.hpp"
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/jfieldIDWorkaround.hpp"
44 #include "runtime/jniHandles.inline.hpp"
45 #include "runtime/thread.inline.hpp"
46 #include "utilities/formatBuffer.hpp"
47 #include "utilities/utf8.hpp"
48
49 // Complain every extra number of unplanned local refs
50 #define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32
51
52 // Heap objects are allowed to be directly referenced only in VM code,
53 // not in native code.
54
55 #define ASSERT_OOPS_ALLOWED \
56 assert(JavaThread::current()->thread_state() == _thread_in_vm, \
57 "jniCheck examining oops in bad state.")
58
59
60 // Execute the given block of source code with the thread in VM state.
61 // To do this, transition from the NATIVE state to the VM state, execute
62 // the code, and transtition back. The ThreadInVMfromNative constructor
63 // performs the transition to VM state, its destructor restores the
64 // NATIVE state.
65
66 #define IN_VM(source_code) { \
67 { \
68 ThreadInVMfromNative __tiv(thr); \
69 source_code \
70 } \
71 }
72
73
74 /*
75 * DECLARATIONS
76 */
77
78 static struct JNINativeInterface_ * unchecked_jni_NativeInterface;
79
80
81 /*
82 * MACRO DEFINITIONS
83 */
84
85 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the
86 // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles
87 // to be created if a fatal error should occur.
88
89 // Check for thread not attached to VM; need to catch this before
90 // assertions in the wrapper routines might fire
91
92 // Check for env being the one value appropriate for this thread.
93
94 #define JNI_ENTRY_CHECKED(result_type, header) \
95 extern "C" { \
96 result_type JNICALL header { \
97 Thread* cur = Thread::current_or_null(); \
98 if (cur == NULL || !cur->is_Java_thread()) { \
99 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \
100 os::abort(true); \
101 } \
102 JavaThread* thr = JavaThread::cast(cur); \
103 JNIEnv* xenv = thr->jni_environment(); \
104 if (env != xenv) { \
105 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \
106 } \
107 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thr)); \
108 VM_ENTRY_BASE(result_type, header, thr)
109
110
111 #define UNCHECKED() (unchecked_jni_NativeInterface)
112
113 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread";
114 static const char * warn_bad_class_descriptor1 = "JNI FindClass received a bad class descriptor \"";
115 static const char * warn_bad_class_descriptor2 = "\". A correct class descriptor " \
116 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases.";
117 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread";
118 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \
119 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical";
120 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI";
121 static const char * fatal_received_null_class = "JNI received a null class";
122 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class";
123 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";
124 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call";
125 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call";
126 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations";
127 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation";
128 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation";
129 static const char * fatal_non_array = "Non-array passed to JNI array operations";
130 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI";
131 static const char * fatal_should_be_static = "Non-static field ID passed to JNI";
132 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI";
133 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations";
134 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations";
135 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI";
136 static const char * fatal_null_object = "Null object passed to JNI";
137 static const char * fatal_wrong_field = "Wrong field ID passed to JNI";
138 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations";
139 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations";
140 static const char * fatal_non_string = "JNI string operation received a non-string";
141 static const char * fatal_non_utf8_class_name1 = "JNI class name is not a valid UTF8 string \"";
142 static const char * fatal_non_utf8_class_name2 = "\"";
143
144
145 // When in VM state:
146 static void ReportJNIWarning(JavaThread* thr, const char *msg) {
147 tty->print_cr("WARNING in native method: %s", msg);
148 thr->print_stack();
149 }
150
151 // When in NATIVE state:
152 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
153 IN_VM(
154 ReportJNIFatalError(thr, msg);
155 )
156 }
157
158 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
159 IN_VM(
160 ReportJNIWarning(thr, msg);
161 )
162 }
163
164
165
166
167 /*
168 * SUPPORT FUNCTIONS
169 */
170
171 /**
172 * Check whether or not a programmer has actually checked for exceptions. According
173 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
174 *
175 * There are two cases where the programmer needs to check for exceptions without
176 * being able to first check an error code:
177 *
178 * - The JNI functions that invoke a Java method return the result of the Java method.
179 * The programmer must call ExceptionOccurred() to check for possible exceptions
180 * that occurred during the execution of the Java method.
181 *
182 * - Some of the JNI array access functions do not return an error code, but may
183 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException.
184 *
185 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
186 *
187 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning
188 * for these functions would be pedantic.
189 */
190 static inline void
191 check_pending_exception(JavaThread* thr) {
192 if (thr->has_pending_exception()) {
193 NativeReportJNIWarning(thr, "JNI call made with exception pending");
194 }
195 if (thr->is_pending_jni_exception_check()) {
196 IN_VM(
197 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s",
198 thr->get_pending_jni_exception_check());
199 thr->print_stack();
200 )
201 thr->clear_pending_jni_exception_check(); // Just complain once
202 }
203 }
204
205 /**
206 * Add to the planned number of handles. I.e. plus current live & warning threshold
207 */
208 static inline void
209 add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) {
210 handles->set_planned_capacity(capacity +
211 handles->get_number_of_live_handles() +
212 CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
213 }
214
215
216 static inline void
217 functionEnterCritical(JavaThread* thr)
218 {
219 check_pending_exception(thr);
220 }
221
222 static inline void
223 functionEnterCriticalExceptionAllowed(JavaThread* thr)
224 {
225 }
226
227 static inline void
228 functionEnter(JavaThread* thr)
229 {
230 if (thr->in_critical()) {
231 tty->print_cr("%s", warn_other_function_in_critical);
232 }
233 check_pending_exception(thr);
234 }
235
236 static inline void
237 functionEnterExceptionAllowed(JavaThread* thr)
238 {
239 if (thr->in_critical()) {
240 tty->print_cr("%s", warn_other_function_in_critical);
241 }
242 }
243
244 static inline void
245 functionExit(JavaThread* thr)
246 {
247 JNIHandleBlock* handles = thr->active_handles();
248 size_t planned_capacity = handles->get_planned_capacity();
249 size_t live_handles = handles->get_number_of_live_handles();
250 if (live_handles > planned_capacity) {
251 IN_VM(
252 tty->print_cr("WARNING: JNI local refs: " SIZE_FORMAT ", exceeds capacity: " SIZE_FORMAT,
253 live_handles, planned_capacity);
254 thr->print_stack();
255 )
256 // Complain just the once, reset to current + warn threshold
257 add_planned_handle_capacity(handles, 0);
258 }
259 }
260
261 static inline void
262 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
263 {
264 fieldDescriptor fd;
265
266 /* make sure it is a static field */
267 if (!jfieldIDWorkaround::is_static_jfieldID(fid))
268 ReportJNIFatalError(thr, fatal_should_be_static);
269
270 /* validate the class being passed */
271 ASSERT_OOPS_ALLOWED;
272 Klass* k_oop = jniCheck::validate_class(thr, cls, false);
273
274 /* check for proper subclass hierarchy */
275 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
276 Klass* f_oop = id->holder();
277 if (!k_oop->is_subtype_of(f_oop))
278 ReportJNIFatalError(thr, fatal_wrong_static_field);
279
280 /* check for proper field type */
281 if (!id->find_local_field(&fd))
282 ReportJNIFatalError(thr, fatal_static_field_not_found);
283 if ((fd.field_type() != ftype) &&
284 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT) &&
285 !(fd.field_type() == T_INLINE_TYPE && ftype == T_OBJECT)) {
286 ReportJNIFatalError(thr, fatal_static_field_mismatch);
287 }
288 }
289
290 static inline void
291 checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)
292 {
293 fieldDescriptor fd;
294
295 /* make sure it is an instance field */
296 if (jfieldIDWorkaround::is_static_jfieldID(fid))
297 ReportJNIFatalError(thr, fatal_should_be_nonstatic);
298
299 /* validate the object being passed and then get its class */
300 ASSERT_OOPS_ALLOWED;
301 oop oopObj = jniCheck::validate_object(thr, obj);
302 if (oopObj == NULL) {
303 ReportJNIFatalError(thr, fatal_null_object);
304 }
305 Klass* k_oop = oopObj->klass();
306
307 if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {
308 ReportJNIFatalError(thr, fatal_wrong_field);
309 }
310
311 /* make sure the field exists */
312 int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);
313 if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))
314 ReportJNIFatalError(thr, fatal_wrong_field);
315
316 /* check for proper field type */
317 if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,
318 false, &fd))
319 ReportJNIFatalError(thr, fatal_instance_field_not_found);
320
321 if ((fd.field_type() != ftype) &&
322 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT) &&
323 !(fd.field_type() == T_INLINE_TYPE && ftype == T_OBJECT)) {
324 ReportJNIFatalError(thr, fatal_instance_field_mismatch);
325 }
326 }
327
328 static inline void
329 checkString(JavaThread* thr, jstring js)
330 {
331 ASSERT_OOPS_ALLOWED;
332 oop s = jniCheck::validate_object(thr, js);
333 if ((s == NULL) || !java_lang_String::is_instance(s))
334 ReportJNIFatalError(thr, fatal_non_string);
335 }
336
337 static inline arrayOop
338 check_is_array(JavaThread* thr, jarray jArray)
339 {
340 ASSERT_OOPS_ALLOWED;
341 arrayOop aOop;
342
343 aOop = (arrayOop)jniCheck::validate_object(thr, jArray);
344 if (aOop == NULL || !aOop->is_array()) {
345 ReportJNIFatalError(thr, fatal_non_array);
346 }
347 return aOop;
348 }
349
350 static inline arrayOop
351 check_is_primitive_array(JavaThread* thr, jarray jArray) {
352 arrayOop aOop = check_is_array(thr, jArray);
353
354 if (!aOop->is_typeArray()) {
355 ReportJNIFatalError(thr, fatal_prim_type_array_expected);
356 }
357 return aOop;
358 }
359
360 static inline void
361 check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)
362 {
363 BasicType array_type;
364 arrayOop aOop;
365
366 aOop = check_is_primitive_array(thr, jArray);
367 array_type = TypeArrayKlass::cast(aOop->klass())->element_type();
368 if (array_type != elementType) {
369 ReportJNIFatalError(thr, fatal_element_type_mismatch);
370 }
371 }
372
373 static inline void
374 check_is_obj_or_inline_array(JavaThread* thr, jarray jArray) {
375 arrayOop aOop = check_is_array(thr, jArray);
376 if (!aOop->is_objArray() && !aOop->is_flatArray()) {
377 ReportJNIFatalError(thr, fatal_object_array_expected);
378 }
379 }
380
381 /*
382 * Copy and wrap array elements for bounds checking.
383 * Remember the original elements (GuardedMemory::get_tag())
384 */
385 static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,
386 void* orig_elements) {
387 void* result;
388 IN_VM(
389 oop a = JNIHandles::resolve_non_null(array);
390 size_t len = arrayOop(a)->length() <<
391 TypeArrayKlass::cast(a->klass())->log2_element_size();
392 result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);
393 )
394 return result;
395 }
396
397 static void* check_wrapped_array(JavaThread* thr, const char* fn_name,
398 void* obj, void* carray, size_t* rsz) {
399 if (carray == NULL) {
400 tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj));
401 NativeReportJNIFatalError(thr, "Elements vector NULL");
402 }
403 GuardedMemory guarded(carray);
404 void* orig_result = guarded.get_tag();
405 if (!guarded.verify_guards()) {
406 tty->print_cr("%s: release array failed bounds check, incorrect pointer returned ? array: "
407 PTR_FORMAT " carray: " PTR_FORMAT, fn_name, p2i(obj), p2i(carray));
408 DEBUG_ONLY(guarded.print_on(tty);) // This may crash.
409 NativeReportJNIFatalError(thr, err_msg("%s: failed bounds check", fn_name));
410 }
411 if (orig_result == NULL) {
412 tty->print_cr("%s: unrecognized elements. array: " PTR_FORMAT " carray: " PTR_FORMAT,
413 fn_name, p2i(obj), p2i(carray));
414 DEBUG_ONLY(guarded.print_on(tty);) // This may crash.
415 NativeReportJNIFatalError(thr, err_msg("%s: unrecognized elements", fn_name));
416 }
417 if (rsz != NULL) {
418 *rsz = guarded.get_user_size();
419 }
420 return orig_result;
421 }
422
423 static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,
424 void* obj, void* carray, jint mode, jboolean is_critical) {
425 size_t sz;
426 void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);
427 switch (mode) {
428 case 0:
429 memcpy(orig_result, carray, sz);
430 GuardedMemory::free_copy(carray);
431 break;
432 case JNI_COMMIT:
433 memcpy(orig_result, carray, sz);
434 if (is_critical) {
435 // For ReleasePrimitiveArrayCritical we must free the internal buffer
436 // allocated through GuardedMemory.
437 GuardedMemory::free_copy(carray);
438 }
439 break;
440 case JNI_ABORT:
441 GuardedMemory::free_copy(carray);
442 break;
443 default:
444 tty->print_cr("%s: Unrecognized mode %i releasing array "
445 PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));
446 NativeReportJNIFatalError(thr, "Unrecognized array release mode");
447 }
448 return orig_result;
449 }
450
451 oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {
452 if ((obj != NULL) && (JNIHandles::handle_type(thr, obj) != JNIInvalidRefType)) {
453 ASSERT_OOPS_ALLOWED;
454 return JNIHandles::resolve_external_guard(obj);
455 }
456 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
457 return NULL;
458 }
459
460
461 Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) {
462 ASSERT_OOPS_ALLOWED;
463 // do the fast jmethodID check first
464 Method* m = Method::checked_resolve_jmethod_id(method_id);
465 if (m == NULL) {
466 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
467 }
468 // jmethodIDs are handles in the class loader data,
469 // but that can be expensive so check it last
470 else if (!Method::is_method_id(method_id)) {
471 ReportJNIFatalError(thr, fatal_non_weak_method);
472 }
473 return m;
474 }
475
476
477 oop jniCheck::validate_object(JavaThread* thr, jobject obj) {
478 if (obj == NULL) return NULL;
479 ASSERT_OOPS_ALLOWED;
480 oop oopObj = jniCheck::validate_handle(thr, obj);
481 if (oopObj == NULL) {
482 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
483 }
484 return oopObj;
485 }
486
487 // Warn if a class descriptor is in decorated form; class descriptors
488 // passed to JNI findClass should not be decorated unless they are
489 // array descriptors.
490 void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {
491 if (name == NULL) return; // implementation accepts NULL so just return
492
493 size_t len = strlen(name);
494
495 if (len >= 2 &&
496 (name[0] == JVM_SIGNATURE_CLASS || name[0] == JVM_SIGNATURE_INLINE_TYPE) && // 'L' or 'Q'
497 name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';'
498 char msg[JVM_MAXPATHLEN];
499 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s",
500 warn_bad_class_descriptor1, name, warn_bad_class_descriptor2);
501 ReportJNIWarning(thr, msg);
502 }
503
504 // Verify that the class name given is a valid utf8 string
505 if (!UTF8::is_legal_utf8((const unsigned char*)name, (int)strlen(name), false)) {
506 char msg[JVM_MAXPATHLEN];
507 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s", fatal_non_utf8_class_name1, name, fatal_non_utf8_class_name2);
508 ReportJNIFatalError(thr, msg);
509 }
510 }
511
512 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {
513 ASSERT_OOPS_ALLOWED;
514 oop mirror = jniCheck::validate_handle(thr, clazz);
515 if (mirror == NULL) {
516 ReportJNIFatalError(thr, fatal_received_null_class);
517 }
518
519 if (mirror->klass() != vmClasses::Class_klass()) {
520 ReportJNIFatalError(thr, fatal_class_not_a_class);
521 }
522
523 Klass* k = java_lang_Class::as_Klass(mirror);
524 // Make allowances for primitive classes ...
525 if (!(k != NULL || (allow_primitive && java_lang_Class::is_primitive(mirror)))) {
526 ReportJNIFatalError(thr, fatal_class_not_a_class);
527 }
528 return k;
529 }
530
531 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {
532 ASSERT_OOPS_ALLOWED;
533 assert(klass != NULL, "klass argument must have a value");
534
535 if (!klass->is_instance_klass() ||
536 !klass->is_subclass_of(vmClasses::Throwable_klass())) {
537 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);
538 }
539 }
540
541 void jniCheck::validate_call(JavaThread* thr, jclass clazz, jmethodID method_id, jobject obj) {
542 ASSERT_OOPS_ALLOWED;
543 Method* m = jniCheck::validate_jmethod_id(thr, method_id);
544 InstanceKlass* holder = m->method_holder();
545
546 if (clazz != NULL) {
547 Klass* k = jniCheck::validate_class(thr, clazz, false);
548 // Check that method is in the class, must be InstanceKlass
549 if (!InstanceKlass::cast(k)->is_subtype_of(holder)) {
550 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
551 }
552 }
553
554 if (obj != NULL) {
555 oop recv = jniCheck::validate_object(thr, obj);
556 assert(recv != NULL, "validate_object checks that");
557 Klass* rk = recv->klass();
558
559 // Check that the object is a subtype of method holder too.
560 if (!rk->is_subtype_of(holder)) {
561 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
562 }
563 }
564 }
565
566
567 /*
568 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
569 */
570
571 JNI_ENTRY_CHECKED(jclass,
572 checked_jni_DefineClass(JNIEnv *env,
573 const char *name,
574 jobject loader,
575 const jbyte *buf,
576 jsize len))
577 functionEnter(thr);
578 IN_VM(
579 jniCheck::validate_object(thr, loader);
580 )
581 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
582 functionExit(thr);
583 return result;
584 JNI_END
585
586 JNI_ENTRY_CHECKED(jclass,
587 checked_jni_FindClass(JNIEnv *env,
588 const char *name))
589 functionEnter(thr);
590 IN_VM(
591 jniCheck::validate_class_descriptor(thr, name);
592 )
593 jclass result = UNCHECKED()->FindClass(env, name);
594 functionExit(thr);
595 return result;
596 JNI_END
597
598 JNI_ENTRY_CHECKED(jmethodID,
599 checked_jni_FromReflectedMethod(JNIEnv *env,
600 jobject method))
601 functionEnter(thr);
602 IN_VM(
603 jniCheck::validate_object(thr, method);
604 )
605 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
606 functionExit(thr);
607 return result;
608 JNI_END
609
610 JNI_ENTRY_CHECKED(jfieldID,
611 checked_jni_FromReflectedField(JNIEnv *env,
612 jobject field))
613 functionEnter(thr);
614 IN_VM(
615 jniCheck::validate_object(thr, field);
616 )
617 jfieldID result = UNCHECKED()->FromReflectedField(env, field);
618 functionExit(thr);
619 return result;
620 JNI_END
621
622 JNI_ENTRY_CHECKED(jobject,
623 checked_jni_ToReflectedMethod(JNIEnv *env,
624 jclass cls,
625 jmethodID methodID,
626 jboolean isStatic))
627 functionEnter(thr);
628 IN_VM(
629 jniCheck::validate_call(thr, cls, methodID);
630 )
631 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
632 isStatic);
633 functionExit(thr);
634 return result;
635 JNI_END
636
637 JNI_ENTRY_CHECKED(jclass,
638 checked_jni_GetSuperclass(JNIEnv *env,
639 jclass sub))
640 functionEnter(thr);
641 IN_VM(
642 jniCheck::validate_class(thr, sub, true);
643 )
644 jclass result = UNCHECKED()->GetSuperclass(env, sub);
645 functionExit(thr);
646 return result;
647 JNI_END
648
649 JNI_ENTRY_CHECKED(jboolean,
650 checked_jni_IsAssignableFrom(JNIEnv *env,
651 jclass sub,
652 jclass sup))
653 functionEnter(thr);
654 IN_VM(
655 jniCheck::validate_class(thr, sub, true);
656 jniCheck::validate_class(thr, sup, true);
657 )
658 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
659 functionExit(thr);
660 return result;
661 JNI_END
662
663 JNI_ENTRY_CHECKED(jobject,
664 checked_jni_ToReflectedField(JNIEnv *env,
665 jclass cls,
666 jfieldID fieldID,
667 jboolean isStatic))
668 functionEnter(thr);
669 IN_VM(
670 jniCheck::validate_class(thr, cls, false);
671 )
672 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
673 isStatic);
674 functionExit(thr);
675 return result;
676 JNI_END
677
678 JNI_ENTRY_CHECKED(jint,
679 checked_jni_Throw(JNIEnv *env,
680 jthrowable obj))
681 functionEnter(thr);
682 IN_VM(
683 oop oopObj = jniCheck::validate_object(thr, obj);
684 if (oopObj == NULL) {
685 // Unchecked Throw tolerates a NULL obj, so just warn
686 ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
687 } else {
688 jniCheck::validate_throwable_klass(thr, oopObj->klass());
689 }
690 )
691 jint result = UNCHECKED()->Throw(env, obj);
692 functionExit(thr);
693 return result;
694 JNI_END
695
696 JNI_ENTRY_CHECKED(jint,
697 checked_jni_ThrowNew(JNIEnv *env,
698 jclass clazz,
699 const char *msg))
700 functionEnter(thr);
701 IN_VM(
702 Klass* k = jniCheck::validate_class(thr, clazz, false);
703 assert(k != NULL, "validate_class shouldn't return NULL Klass*");
704 jniCheck::validate_throwable_klass(thr, k);
705 )
706 jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
707 functionExit(thr);
708 return result;
709 JNI_END
710
711 JNI_ENTRY_CHECKED(jthrowable,
712 checked_jni_ExceptionOccurred(JNIEnv *env))
713 thr->clear_pending_jni_exception_check();
714 functionEnterExceptionAllowed(thr);
715 jthrowable result = UNCHECKED()->ExceptionOccurred(env);
716 functionExit(thr);
717 return result;
718 JNI_END
719
720 JNI_ENTRY_CHECKED(void,
721 checked_jni_ExceptionDescribe(JNIEnv *env))
722 functionEnterExceptionAllowed(thr);
723 UNCHECKED()->ExceptionDescribe(env);
724 functionExit(thr);
725 JNI_END
726
727 JNI_ENTRY_CHECKED(void,
728 checked_jni_ExceptionClear(JNIEnv *env))
729 thr->clear_pending_jni_exception_check();
730 functionEnterExceptionAllowed(thr);
731 UNCHECKED()->ExceptionClear(env);
732 functionExit(thr);
733 JNI_END
734
735 JNI_ENTRY_CHECKED(void,
736 checked_jni_FatalError(JNIEnv *env,
737 const char *msg))
738 thr->clear_pending_jni_exception_check();
739 functionEnter(thr);
740 UNCHECKED()->FatalError(env, msg);
741 functionExit(thr);
742 JNI_END
743
744 JNI_ENTRY_CHECKED(jint,
745 checked_jni_PushLocalFrame(JNIEnv *env,
746 jint capacity))
747 functionEnterExceptionAllowed(thr);
748 if (capacity < 0)
749 NativeReportJNIFatalError(thr, "negative capacity");
750 jint result = UNCHECKED()->PushLocalFrame(env, capacity);
751 if (result == JNI_OK) {
752 add_planned_handle_capacity(thr->active_handles(), capacity);
753 }
754 functionExit(thr);
755 return result;
756 JNI_END
757
758 JNI_ENTRY_CHECKED(jobject,
759 checked_jni_PopLocalFrame(JNIEnv *env,
760 jobject result))
761 functionEnterExceptionAllowed(thr);
762 jobject res = UNCHECKED()->PopLocalFrame(env, result);
763 functionExit(thr);
764 return res;
765 JNI_END
766
767 JNI_ENTRY_CHECKED(jobject,
768 checked_jni_NewGlobalRef(JNIEnv *env,
769 jobject lobj))
770 functionEnter(thr);
771 IN_VM(
772 if (lobj != NULL) {
773 jniCheck::validate_handle(thr, lobj);
774 }
775 )
776 jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
777 functionExit(thr);
778 return result;
779 JNI_END
780
781 JNI_ENTRY_CHECKED(void,
782 checked_jni_DeleteGlobalRef(JNIEnv *env,
783 jobject gref))
784 functionEnterExceptionAllowed(thr);
785 IN_VM(
786 jniCheck::validate_object(thr, gref);
787 if (gref && !JNIHandles::is_global_handle(gref)) {
788 ReportJNIFatalError(thr,
789 "Invalid global JNI handle passed to DeleteGlobalRef");
790 }
791 )
792 UNCHECKED()->DeleteGlobalRef(env,gref);
793 functionExit(thr);
794 JNI_END
795
796 JNI_ENTRY_CHECKED(void,
797 checked_jni_DeleteLocalRef(JNIEnv *env,
798 jobject obj))
799 functionEnterExceptionAllowed(thr);
800 IN_VM(
801 jniCheck::validate_object(thr, obj);
802 if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
803 JNIHandles::is_frame_handle(thr, obj)))
804 ReportJNIFatalError(thr,
805 "Invalid local JNI handle passed to DeleteLocalRef");
806 )
807 UNCHECKED()->DeleteLocalRef(env, obj);
808 functionExit(thr);
809 JNI_END
810
811 JNI_ENTRY_CHECKED(jboolean,
812 checked_jni_IsSameObject(JNIEnv *env,
813 jobject obj1,
814 jobject obj2))
815 functionEnterExceptionAllowed(thr);
816 IN_VM(
817 /* This JNI function can be used to compare weak global references
818 * to NULL objects. If the handles are valid, but contain NULL,
819 * then don't attempt to validate the object.
820 */
821 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
822 jniCheck::validate_object(thr, obj1);
823 }
824 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
825 jniCheck::validate_object(thr, obj2);
826 }
827 )
828 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
829 functionExit(thr);
830 return result;
831 JNI_END
832
833 JNI_ENTRY_CHECKED(jobject,
834 checked_jni_NewLocalRef(JNIEnv *env,
835 jobject ref))
836 functionEnter(thr);
837 IN_VM(
838 if (ref != NULL) {
839 jniCheck::validate_handle(thr, ref);
840 }
841 )
842 jobject result = UNCHECKED()->NewLocalRef(env, ref);
843 functionExit(thr);
844 return result;
845 JNI_END
846
847 JNI_ENTRY_CHECKED(jint,
848 checked_jni_EnsureLocalCapacity(JNIEnv *env,
849 jint capacity))
850 functionEnter(thr);
851 if (capacity < 0) {
852 NativeReportJNIFatalError(thr, "negative capacity");
853 }
854 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
855 if (result == JNI_OK) {
856 // increase local ref capacity if needed
857 if ((size_t)capacity > thr->active_handles()->get_planned_capacity()) {
858 add_planned_handle_capacity(thr->active_handles(), capacity);
859 }
860 }
861 functionExit(thr);
862 return result;
863 JNI_END
864
865 JNI_ENTRY_CHECKED(jobject,
866 checked_jni_AllocObject(JNIEnv *env,
867 jclass clazz))
868 functionEnter(thr);
869 IN_VM(
870 jniCheck::validate_class(thr, clazz, false);
871 )
872 jobject result = UNCHECKED()->AllocObject(env,clazz);
873 functionExit(thr);
874 return result;
875 JNI_END
876
877 JNI_ENTRY_CHECKED(jobject,
878 checked_jni_NewObject(JNIEnv *env,
879 jclass clazz,
880 jmethodID methodID,
881 ...))
882 functionEnter(thr);
883 va_list args;
884 IN_VM(
885 jniCheck::validate_call(thr, clazz, methodID);
886 )
887 va_start(args, methodID);
888 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
889 va_end(args);
890 functionExit(thr);
891 return result;
892 JNI_END
893
894 JNI_ENTRY_CHECKED(jobject,
895 checked_jni_NewObjectV(JNIEnv *env,
896 jclass clazz,
897 jmethodID methodID,
898 va_list args))
899 functionEnter(thr);
900 IN_VM(
901 jniCheck::validate_call(thr, clazz, methodID);
902 )
903 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
904 functionExit(thr);
905 return result;
906 JNI_END
907
908 JNI_ENTRY_CHECKED(jobject,
909 checked_jni_NewObjectA(JNIEnv *env,
910 jclass clazz,
911 jmethodID methodID,
912 const jvalue *args))
913 functionEnter(thr);
914 IN_VM(
915 jniCheck::validate_call(thr, clazz, methodID);
916 )
917 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
918 functionExit(thr);
919 return result;
920 JNI_END
921
922 JNI_ENTRY_CHECKED(jclass,
923 checked_jni_GetObjectClass(JNIEnv *env,
924 jobject obj))
925 functionEnter(thr);
926 IN_VM(
927 jniCheck::validate_object(thr, obj);
928 )
929 jclass result = UNCHECKED()->GetObjectClass(env,obj);
930 functionExit(thr);
931 return result;
932 JNI_END
933
934 JNI_ENTRY_CHECKED(jboolean,
935 checked_jni_IsInstanceOf(JNIEnv *env,
936 jobject obj,
937 jclass clazz))
938 functionEnter(thr);
939 IN_VM(
940 jniCheck::validate_object(thr, obj);
941 jniCheck::validate_class(thr, clazz, true);
942 )
943 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
944 functionExit(thr);
945 return result;
946 JNI_END
947
948 JNI_ENTRY_CHECKED(jmethodID,
949 checked_jni_GetMethodID(JNIEnv *env,
950 jclass clazz,
951 const char *name,
952 const char *sig))
953 functionEnter(thr);
954 IN_VM(
955 jniCheck::validate_class(thr, clazz, false);
956 )
957 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
958 functionExit(thr);
959 return result;
960 JNI_END
961
962 #define WRAPPER_CallMethod(ResultType, Result) \
963 JNI_ENTRY_CHECKED(ResultType, \
964 checked_jni_Call##Result##Method(JNIEnv *env, \
965 jobject obj, \
966 jmethodID methodID, \
967 ...)) \
968 functionEnter(thr); \
969 va_list args; \
970 IN_VM( \
971 jniCheck::validate_call(thr, NULL, methodID, obj); \
972 ) \
973 va_start(args,methodID); \
974 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
975 args); \
976 va_end(args); \
977 thr->set_pending_jni_exception_check("Call"#Result"Method"); \
978 functionExit(thr); \
979 return result; \
980 JNI_END \
981 \
982 JNI_ENTRY_CHECKED(ResultType, \
983 checked_jni_Call##Result##MethodV(JNIEnv *env, \
984 jobject obj, \
985 jmethodID methodID, \
986 va_list args)) \
987 functionEnter(thr); \
988 IN_VM(\
989 jniCheck::validate_call(thr, NULL, methodID, obj); \
990 ) \
991 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
992 args); \
993 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
994 functionExit(thr); \
995 return result; \
996 JNI_END \
997 \
998 JNI_ENTRY_CHECKED(ResultType, \
999 checked_jni_Call##Result##MethodA(JNIEnv *env, \
1000 jobject obj, \
1001 jmethodID methodID, \
1002 const jvalue * args)) \
1003 functionEnter(thr); \
1004 IN_VM( \
1005 jniCheck::validate_call(thr, NULL, methodID, obj); \
1006 ) \
1007 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
1008 args); \
1009 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
1010 functionExit(thr); \
1011 return result; \
1012 JNI_END
1013
1014 WRAPPER_CallMethod(jobject,Object)
1015 WRAPPER_CallMethod(jboolean,Boolean)
1016 WRAPPER_CallMethod(jbyte,Byte)
1017 WRAPPER_CallMethod(jshort,Short)
1018 WRAPPER_CallMethod(jchar,Char)
1019 WRAPPER_CallMethod(jint,Int)
1020 WRAPPER_CallMethod(jlong,Long)
1021 WRAPPER_CallMethod(jfloat,Float)
1022 WRAPPER_CallMethod(jdouble,Double)
1023
1024 JNI_ENTRY_CHECKED(void,
1025 checked_jni_CallVoidMethod(JNIEnv *env, \
1026 jobject obj, \
1027 jmethodID methodID, \
1028 ...))
1029 functionEnter(thr);
1030 va_list args;
1031 IN_VM(
1032 jniCheck::validate_call(thr, NULL, methodID, obj);
1033 )
1034 va_start(args,methodID);
1035 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1036 va_end(args);
1037 thr->set_pending_jni_exception_check("CallVoidMethod");
1038 functionExit(thr);
1039 JNI_END
1040
1041 JNI_ENTRY_CHECKED(void,
1042 checked_jni_CallVoidMethodV(JNIEnv *env,
1043 jobject obj,
1044 jmethodID methodID,
1045 va_list args))
1046 functionEnter(thr);
1047 IN_VM(
1048 jniCheck::validate_call(thr, NULL, methodID, obj);
1049 )
1050 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1051 thr->set_pending_jni_exception_check("CallVoidMethodV");
1052 functionExit(thr);
1053 JNI_END
1054
1055 JNI_ENTRY_CHECKED(void,
1056 checked_jni_CallVoidMethodA(JNIEnv *env,
1057 jobject obj,
1058 jmethodID methodID,
1059 const jvalue * args))
1060 functionEnter(thr);
1061 IN_VM(
1062 jniCheck::validate_call(thr, NULL, methodID, obj);
1063 )
1064 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1065 thr->set_pending_jni_exception_check("CallVoidMethodA");
1066 functionExit(thr);
1067 JNI_END
1068
1069 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1070 JNI_ENTRY_CHECKED(ResultType, \
1071 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1072 jobject obj, \
1073 jclass clazz, \
1074 jmethodID methodID, \
1075 ...)) \
1076 functionEnter(thr); \
1077 va_list args; \
1078 IN_VM( \
1079 jniCheck::validate_call(thr, clazz, methodID, obj); \
1080 ) \
1081 va_start(args,methodID); \
1082 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1083 obj, \
1084 clazz, \
1085 methodID,\
1086 args); \
1087 va_end(args); \
1088 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1089 functionExit(thr); \
1090 return result; \
1091 JNI_END \
1092 \
1093 JNI_ENTRY_CHECKED(ResultType, \
1094 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1095 jobject obj, \
1096 jclass clazz, \
1097 jmethodID methodID, \
1098 va_list args)) \
1099 functionEnter(thr); \
1100 IN_VM( \
1101 jniCheck::validate_call(thr, clazz, methodID, obj); \
1102 ) \
1103 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1104 obj, \
1105 clazz, \
1106 methodID,\
1107 args); \
1108 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1109 functionExit(thr); \
1110 return result; \
1111 JNI_END \
1112 \
1113 JNI_ENTRY_CHECKED(ResultType, \
1114 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1115 jobject obj, \
1116 jclass clazz, \
1117 jmethodID methodID, \
1118 const jvalue * args)) \
1119 functionEnter(thr); \
1120 IN_VM( \
1121 jniCheck::validate_call(thr, clazz, methodID, obj); \
1122 ) \
1123 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1124 obj, \
1125 clazz, \
1126 methodID,\
1127 args); \
1128 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1129 functionExit(thr); \
1130 return result; \
1131 JNI_END
1132
1133 WRAPPER_CallNonvirtualMethod(jobject,Object)
1134 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1135 WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1136 WRAPPER_CallNonvirtualMethod(jshort,Short)
1137 WRAPPER_CallNonvirtualMethod(jchar,Char)
1138 WRAPPER_CallNonvirtualMethod(jint,Int)
1139 WRAPPER_CallNonvirtualMethod(jlong,Long)
1140 WRAPPER_CallNonvirtualMethod(jfloat,Float)
1141 WRAPPER_CallNonvirtualMethod(jdouble,Double)
1142
1143 JNI_ENTRY_CHECKED(void,
1144 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1145 jobject obj,
1146 jclass clazz,
1147 jmethodID methodID,
1148 ...))
1149 functionEnter(thr);
1150 va_list args;
1151 IN_VM(
1152 jniCheck::validate_call(thr, clazz, methodID, obj);
1153 )
1154 va_start(args,methodID);
1155 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1156 va_end(args);
1157 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1158 functionExit(thr);
1159 JNI_END
1160
1161 JNI_ENTRY_CHECKED(void,
1162 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1163 jobject obj,
1164 jclass clazz,
1165 jmethodID methodID,
1166 va_list args))
1167 functionEnter(thr);
1168 IN_VM(
1169 jniCheck::validate_call(thr, clazz, methodID, obj);
1170 )
1171 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1172 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1173 functionExit(thr);
1174 JNI_END
1175
1176 JNI_ENTRY_CHECKED(void,
1177 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1178 jobject obj,
1179 jclass clazz,
1180 jmethodID methodID,
1181 const jvalue * args))
1182 functionEnter(thr);
1183 IN_VM(
1184 jniCheck::validate_call(thr, clazz, methodID, obj);
1185 )
1186 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1187 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1188 functionExit(thr);
1189 JNI_END
1190
1191 JNI_ENTRY_CHECKED(jfieldID,
1192 checked_jni_GetFieldID(JNIEnv *env,
1193 jclass clazz,
1194 const char *name,
1195 const char *sig))
1196 functionEnter(thr);
1197 IN_VM(
1198 jniCheck::validate_class(thr, clazz, false);
1199 )
1200 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1201 functionExit(thr);
1202 return result;
1203 JNI_END
1204
1205 #define WRAPPER_GetField(ReturnType,Result,FieldType) \
1206 JNI_ENTRY_CHECKED(ReturnType, \
1207 checked_jni_Get##Result##Field(JNIEnv *env, \
1208 jobject obj, \
1209 jfieldID fieldID)) \
1210 functionEnter(thr); \
1211 IN_VM( \
1212 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1213 ) \
1214 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1215 functionExit(thr); \
1216 return result; \
1217 JNI_END
1218
1219 WRAPPER_GetField(jobject, Object, T_OBJECT)
1220 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1221 WRAPPER_GetField(jbyte, Byte, T_BYTE)
1222 WRAPPER_GetField(jshort, Short, T_SHORT)
1223 WRAPPER_GetField(jchar, Char, T_CHAR)
1224 WRAPPER_GetField(jint, Int, T_INT)
1225 WRAPPER_GetField(jlong, Long, T_LONG)
1226 WRAPPER_GetField(jfloat, Float, T_FLOAT)
1227 WRAPPER_GetField(jdouble, Double, T_DOUBLE)
1228
1229 #define WRAPPER_SetField(ValueType,Result,FieldType) \
1230 JNI_ENTRY_CHECKED(void, \
1231 checked_jni_Set##Result##Field(JNIEnv *env, \
1232 jobject obj, \
1233 jfieldID fieldID, \
1234 ValueType val)) \
1235 functionEnter(thr); \
1236 IN_VM( \
1237 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1238 ) \
1239 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1240 functionExit(thr); \
1241 JNI_END
1242
1243 WRAPPER_SetField(jobject, Object, T_OBJECT)
1244 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1245 WRAPPER_SetField(jbyte, Byte, T_BYTE)
1246 WRAPPER_SetField(jshort, Short, T_SHORT)
1247 WRAPPER_SetField(jchar, Char, T_CHAR)
1248 WRAPPER_SetField(jint, Int, T_INT)
1249 WRAPPER_SetField(jlong, Long, T_LONG)
1250 WRAPPER_SetField(jfloat, Float, T_FLOAT)
1251 WRAPPER_SetField(jdouble, Double, T_DOUBLE)
1252
1253
1254 JNI_ENTRY_CHECKED(jmethodID,
1255 checked_jni_GetStaticMethodID(JNIEnv *env,
1256 jclass clazz,
1257 const char *name,
1258 const char *sig))
1259 functionEnter(thr);
1260 IN_VM(
1261 jniCheck::validate_class(thr, clazz, false);
1262 )
1263 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1264 functionExit(thr);
1265 return result;
1266 JNI_END
1267
1268 #define WRAPPER_CallStaticMethod(ReturnType,Result) \
1269 JNI_ENTRY_CHECKED(ReturnType, \
1270 checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1271 jclass clazz, \
1272 jmethodID methodID, \
1273 ...)) \
1274 functionEnter(thr); \
1275 va_list args; \
1276 IN_VM( \
1277 jniCheck::validate_call(thr, clazz, methodID); \
1278 ) \
1279 va_start(args,methodID); \
1280 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1281 clazz, \
1282 methodID, \
1283 args); \
1284 va_end(args); \
1285 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1286 functionExit(thr); \
1287 return result; \
1288 JNI_END \
1289 \
1290 JNI_ENTRY_CHECKED(ReturnType, \
1291 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1292 jclass clazz, \
1293 jmethodID methodID,\
1294 va_list args)) \
1295 functionEnter(thr); \
1296 IN_VM( \
1297 jniCheck::validate_call(thr, clazz, methodID); \
1298 ) \
1299 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1300 clazz, \
1301 methodID, \
1302 args); \
1303 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1304 functionExit(thr); \
1305 return result; \
1306 JNI_END \
1307 \
1308 JNI_ENTRY_CHECKED(ReturnType, \
1309 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1310 jclass clazz, \
1311 jmethodID methodID, \
1312 const jvalue *args)) \
1313 functionEnter(thr); \
1314 IN_VM( \
1315 jniCheck::validate_call(thr, clazz, methodID); \
1316 ) \
1317 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1318 clazz, \
1319 methodID, \
1320 args); \
1321 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1322 functionExit(thr); \
1323 return result; \
1324 JNI_END
1325
1326 WRAPPER_CallStaticMethod(jobject,Object)
1327 WRAPPER_CallStaticMethod(jboolean,Boolean)
1328 WRAPPER_CallStaticMethod(jbyte,Byte)
1329 WRAPPER_CallStaticMethod(jshort,Short)
1330 WRAPPER_CallStaticMethod(jchar,Char)
1331 WRAPPER_CallStaticMethod(jint,Int)
1332 WRAPPER_CallStaticMethod(jlong,Long)
1333 WRAPPER_CallStaticMethod(jfloat,Float)
1334 WRAPPER_CallStaticMethod(jdouble,Double)
1335
1336 JNI_ENTRY_CHECKED(void,
1337 checked_jni_CallStaticVoidMethod(JNIEnv *env,
1338 jclass cls,
1339 jmethodID methodID,
1340 ...))
1341 functionEnter(thr);
1342 va_list args;
1343 IN_VM(
1344 jniCheck::validate_call(thr, cls, methodID);
1345 )
1346 va_start(args,methodID);
1347 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1348 va_end(args);
1349 thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1350 functionExit(thr);
1351 JNI_END
1352
1353 JNI_ENTRY_CHECKED(void,
1354 checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1355 jclass cls,
1356 jmethodID methodID,
1357 va_list args))
1358 functionEnter(thr);
1359 IN_VM(
1360 jniCheck::validate_call(thr, cls, methodID);
1361 )
1362 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1363 thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1364 functionExit(thr);
1365 JNI_END
1366
1367 JNI_ENTRY_CHECKED(void,
1368 checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1369 jclass cls,
1370 jmethodID methodID,
1371 const jvalue * args))
1372 functionEnter(thr);
1373 IN_VM(
1374 jniCheck::validate_call(thr, cls, methodID);
1375 )
1376 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1377 thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1378 functionExit(thr);
1379 JNI_END
1380
1381 JNI_ENTRY_CHECKED(jfieldID,
1382 checked_jni_GetStaticFieldID(JNIEnv *env,
1383 jclass clazz,
1384 const char *name,
1385 const char *sig))
1386 functionEnter(thr);
1387 IN_VM(
1388 jniCheck::validate_class(thr, clazz, false);
1389 )
1390 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1391 functionExit(thr);
1392 return result;
1393 JNI_END
1394
1395 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1396 JNI_ENTRY_CHECKED(ReturnType, \
1397 checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1398 jclass clazz, \
1399 jfieldID fieldID)) \
1400 functionEnter(thr); \
1401 IN_VM( \
1402 jniCheck::validate_class(thr, clazz, false); \
1403 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1404 ) \
1405 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1406 clazz, \
1407 fieldID); \
1408 functionExit(thr); \
1409 return result; \
1410 JNI_END
1411
1412 WRAPPER_GetStaticField(jobject, Object, T_OBJECT)
1413 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1414 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE)
1415 WRAPPER_GetStaticField(jshort, Short, T_SHORT)
1416 WRAPPER_GetStaticField(jchar, Char, T_CHAR)
1417 WRAPPER_GetStaticField(jint, Int, T_INT)
1418 WRAPPER_GetStaticField(jlong, Long, T_LONG)
1419 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT)
1420 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE)
1421
1422 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1423 JNI_ENTRY_CHECKED(void, \
1424 checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1425 jclass clazz, \
1426 jfieldID fieldID, \
1427 ValueType value)) \
1428 functionEnter(thr); \
1429 IN_VM( \
1430 jniCheck::validate_class(thr, clazz, false); \
1431 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1432 ) \
1433 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1434 functionExit(thr); \
1435 JNI_END
1436
1437 WRAPPER_SetStaticField(jobject, Object, T_OBJECT)
1438 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1439 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE)
1440 WRAPPER_SetStaticField(jshort, Short, T_SHORT)
1441 WRAPPER_SetStaticField(jchar, Char, T_CHAR)
1442 WRAPPER_SetStaticField(jint, Int, T_INT)
1443 WRAPPER_SetStaticField(jlong, Long, T_LONG)
1444 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT)
1445 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE)
1446
1447
1448 JNI_ENTRY_CHECKED(jstring,
1449 checked_jni_NewString(JNIEnv *env,
1450 const jchar *unicode,
1451 jsize len))
1452 functionEnter(thr);
1453 jstring result = UNCHECKED()->NewString(env,unicode,len);
1454 functionExit(thr);
1455 return result;
1456 JNI_END
1457
1458 JNI_ENTRY_CHECKED(jsize,
1459 checked_jni_GetStringLength(JNIEnv *env,
1460 jstring str))
1461 functionEnter(thr);
1462 IN_VM(
1463 checkString(thr, str);
1464 )
1465 jsize result = UNCHECKED()->GetStringLength(env,str);
1466 functionExit(thr);
1467 return result;
1468 JNI_END
1469
1470 // Arbitrary (but well-known) tag
1471 const void* STRING_TAG = (void*)0x47114711;
1472
1473 JNI_ENTRY_CHECKED(const jchar *,
1474 checked_jni_GetStringChars(JNIEnv *env,
1475 jstring str,
1476 jboolean *isCopy))
1477 functionEnter(thr);
1478 IN_VM(
1479 checkString(thr, str);
1480 )
1481 jchar* new_result = NULL;
1482 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1483 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1484 if (result != NULL) {
1485 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination
1486 len *= sizeof(jchar);
1487 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1488 if (new_result == NULL) {
1489 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1490 }
1491 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1492 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1493 FreeHeap((char*)result);
1494 }
1495 functionExit(thr);
1496 return new_result;
1497 JNI_END
1498
1499 JNI_ENTRY_CHECKED(void,
1500 checked_jni_ReleaseStringChars(JNIEnv *env,
1501 jstring str,
1502 const jchar *chars))
1503 functionEnterExceptionAllowed(thr);
1504 IN_VM(
1505 checkString(thr, str);
1506 )
1507 if (chars == NULL) {
1508 // still do the unchecked call to allow dtrace probes
1509 UNCHECKED()->ReleaseStringChars(env,str,chars);
1510 }
1511 else {
1512 GuardedMemory guarded((void*)chars);
1513 if (!guarded.verify_guards()) {
1514 tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1515 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1516 guarded.print_on(tty);
1517 NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1518 "release chars failed bounds check.");
1519 }
1520 if (guarded.get_tag() != STRING_TAG) {
1521 tty->print_cr("ReleaseStringChars: called on something not allocated "
1522 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1523 p2i(str), p2i(chars));
1524 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1525 "not allocated by GetStringChars");
1526 }
1527 UNCHECKED()->ReleaseStringChars(env, str,
1528 (const jchar*) guarded.release_for_freeing());
1529 }
1530 functionExit(thr);
1531 JNI_END
1532
1533 JNI_ENTRY_CHECKED(jstring,
1534 checked_jni_NewStringUTF(JNIEnv *env,
1535 const char *utf))
1536 functionEnter(thr);
1537 jstring result = UNCHECKED()->NewStringUTF(env,utf);
1538 functionExit(thr);
1539 return result;
1540 JNI_END
1541
1542 JNI_ENTRY_CHECKED(jsize,
1543 checked_jni_GetStringUTFLength(JNIEnv *env,
1544 jstring str))
1545 functionEnter(thr);
1546 IN_VM(
1547 checkString(thr, str);
1548 )
1549 jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1550 functionExit(thr);
1551 return result;
1552 JNI_END
1553
1554 // Arbitrary (but well-known) tag - different than GetStringChars
1555 const void* STRING_UTF_TAG = (void*) 0x48124812;
1556
1557 JNI_ENTRY_CHECKED(const char *,
1558 checked_jni_GetStringUTFChars(JNIEnv *env,
1559 jstring str,
1560 jboolean *isCopy))
1561 functionEnter(thr);
1562 IN_VM(
1563 checkString(thr, str);
1564 )
1565 char* new_result = NULL;
1566 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1567 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1568 if (result != NULL) {
1569 size_t len = strlen(result) + 1; // + 1 for NULL termination
1570 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1571 if (new_result == NULL) {
1572 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1573 }
1574 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1575 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1576 FreeHeap((char*)result);
1577 }
1578 functionExit(thr);
1579 return new_result;
1580 JNI_END
1581
1582 JNI_ENTRY_CHECKED(void,
1583 checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1584 jstring str,
1585 const char* chars))
1586 functionEnterExceptionAllowed(thr);
1587 IN_VM(
1588 checkString(thr, str);
1589 )
1590 if (chars == NULL) {
1591 // still do the unchecked call to allow dtrace probes
1592 UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1593 }
1594 else {
1595 GuardedMemory guarded((void*)chars);
1596 if (!guarded.verify_guards()) {
1597 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1598 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1599 guarded.print_on(tty);
1600 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1601 "release chars failed bounds check.");
1602 }
1603 if (guarded.get_tag() != STRING_UTF_TAG) {
1604 tty->print_cr("ReleaseStringUTFChars: called on something not "
1605 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1606 PTR_FORMAT, p2i(str), p2i(chars));
1607 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1608 "called on something not allocated by GetStringUTFChars");
1609 }
1610 UNCHECKED()->ReleaseStringUTFChars(env, str,
1611 (const char*) guarded.release_for_freeing());
1612 }
1613 functionExit(thr);
1614 JNI_END
1615
1616 JNI_ENTRY_CHECKED(jsize,
1617 checked_jni_GetArrayLength(JNIEnv *env,
1618 jarray array))
1619 functionEnter(thr);
1620 IN_VM(
1621 check_is_array(thr, array);
1622 )
1623 jsize result = UNCHECKED()->GetArrayLength(env,array);
1624 functionExit(thr);
1625 return result;
1626 JNI_END
1627
1628 JNI_ENTRY_CHECKED(jobjectArray,
1629 checked_jni_NewObjectArray(JNIEnv *env,
1630 jsize len,
1631 jclass clazz,
1632 jobject init))
1633 functionEnter(thr);
1634 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1635 functionExit(thr);
1636 return result;
1637 JNI_END
1638
1639 JNI_ENTRY_CHECKED(jobject,
1640 checked_jni_GetObjectArrayElement(JNIEnv *env,
1641 jobjectArray array,
1642 jsize index))
1643 functionEnter(thr);
1644 IN_VM(
1645 check_is_obj_or_inline_array(thr, array);
1646 )
1647 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1648 functionExit(thr);
1649 return result;
1650 JNI_END
1651
1652 JNI_ENTRY_CHECKED(void,
1653 checked_jni_SetObjectArrayElement(JNIEnv *env,
1654 jobjectArray array,
1655 jsize index,
1656 jobject val))
1657 functionEnter(thr);
1658 IN_VM(
1659 check_is_obj_or_inline_array(thr, array);
1660 )
1661 UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1662 functionExit(thr);
1663 JNI_END
1664
1665 #define WRAPPER_NewScalarArray(Return, Result) \
1666 JNI_ENTRY_CHECKED(Return, \
1667 checked_jni_New##Result##Array(JNIEnv *env, \
1668 jsize len)) \
1669 functionEnter(thr); \
1670 Return result = UNCHECKED()->New##Result##Array(env,len); \
1671 functionExit(thr); \
1672 return (Return) result; \
1673 JNI_END
1674
1675 WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1676 WRAPPER_NewScalarArray(jbyteArray, Byte)
1677 WRAPPER_NewScalarArray(jshortArray, Short)
1678 WRAPPER_NewScalarArray(jcharArray, Char)
1679 WRAPPER_NewScalarArray(jintArray, Int)
1680 WRAPPER_NewScalarArray(jlongArray, Long)
1681 WRAPPER_NewScalarArray(jfloatArray, Float)
1682 WRAPPER_NewScalarArray(jdoubleArray, Double)
1683
1684 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1685 JNI_ENTRY_CHECKED(ElementType *, \
1686 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1687 ElementType##Array array, \
1688 jboolean *isCopy)) \
1689 functionEnter(thr); \
1690 IN_VM( \
1691 check_primitive_array_type(thr, array, ElementTag); \
1692 ) \
1693 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1694 array, \
1695 isCopy); \
1696 if (result != NULL) { \
1697 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1698 } \
1699 functionExit(thr); \
1700 return result; \
1701 JNI_END
1702
1703 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1704 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte)
1705 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short)
1706 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char)
1707 WRAPPER_GetScalarArrayElements(T_INT, jint, Int)
1708 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long)
1709 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float)
1710 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double)
1711
1712 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1713 JNI_ENTRY_CHECKED(void, \
1714 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1715 ElementType##Array array, \
1716 ElementType *elems, \
1717 jint mode)) \
1718 functionEnterExceptionAllowed(thr); \
1719 IN_VM( \
1720 check_primitive_array_type(thr, array, ElementTag); \
1721 ASSERT_OOPS_ALLOWED; \
1722 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1723 ) \
1724 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1725 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode, JNI_FALSE); \
1726 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1727 functionExit(thr); \
1728 JNI_END
1729
1730 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1731 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte)
1732 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short)
1733 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char)
1734 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int)
1735 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long)
1736 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float)
1737 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double)
1738
1739 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1740 JNI_ENTRY_CHECKED(void, \
1741 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1742 ElementType##Array array, \
1743 jsize start, \
1744 jsize len, \
1745 ElementType *buf)) \
1746 functionEnter(thr); \
1747 IN_VM( \
1748 check_primitive_array_type(thr, array, ElementTag); \
1749 ) \
1750 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1751 functionExit(thr); \
1752 JNI_END
1753
1754 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1755 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte)
1756 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short)
1757 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char)
1758 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int)
1759 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long)
1760 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float)
1761 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1762
1763 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1764 JNI_ENTRY_CHECKED(void, \
1765 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1766 ElementType##Array array, \
1767 jsize start, \
1768 jsize len, \
1769 const ElementType *buf)) \
1770 functionEnter(thr); \
1771 IN_VM( \
1772 check_primitive_array_type(thr, array, ElementTag); \
1773 ) \
1774 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1775 functionExit(thr); \
1776 JNI_END
1777
1778 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1779 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte)
1780 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short)
1781 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char)
1782 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int)
1783 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long)
1784 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float)
1785 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1786
1787 JNI_ENTRY_CHECKED(jint,
1788 checked_jni_RegisterNatives(JNIEnv *env,
1789 jclass clazz,
1790 const JNINativeMethod *methods,
1791 jint nMethods))
1792 functionEnter(thr);
1793 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1794 functionExit(thr);
1795 return result;
1796 JNI_END
1797
1798 JNI_ENTRY_CHECKED(jint,
1799 checked_jni_UnregisterNatives(JNIEnv *env,
1800 jclass clazz))
1801 functionEnter(thr);
1802 jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1803 functionExit(thr);
1804 return result;
1805 JNI_END
1806
1807 JNI_ENTRY_CHECKED(jint,
1808 checked_jni_MonitorEnter(JNIEnv *env,
1809 jobject obj))
1810 functionEnter(thr);
1811 IN_VM(
1812 jniCheck::validate_object(thr, obj);
1813 )
1814 jint result = UNCHECKED()->MonitorEnter(env,obj);
1815 functionExit(thr);
1816 return result;
1817 JNI_END
1818
1819 JNI_ENTRY_CHECKED(jint,
1820 checked_jni_MonitorExit(JNIEnv *env,
1821 jobject obj))
1822 functionEnterExceptionAllowed(thr);
1823 IN_VM(
1824 jniCheck::validate_object(thr, obj);
1825 )
1826 jint result = UNCHECKED()->MonitorExit(env,obj);
1827 functionExit(thr);
1828 return result;
1829 JNI_END
1830
1831 JNI_ENTRY_CHECKED(jint,
1832 checked_jni_GetJavaVM(JNIEnv *env,
1833 JavaVM **vm))
1834 functionEnter(thr);
1835 jint result = UNCHECKED()->GetJavaVM(env,vm);
1836 functionExit(thr);
1837 return result;
1838 JNI_END
1839
1840 JNI_ENTRY_CHECKED(void,
1841 checked_jni_GetStringRegion(JNIEnv *env,
1842 jstring str,
1843 jsize start,
1844 jsize len,
1845 jchar *buf))
1846 functionEnter(thr);
1847 IN_VM(
1848 checkString(thr, str);
1849 )
1850 UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1851 functionExit(thr);
1852 JNI_END
1853
1854 JNI_ENTRY_CHECKED(void,
1855 checked_jni_GetStringUTFRegion(JNIEnv *env,
1856 jstring str,
1857 jsize start,
1858 jsize len,
1859 char *buf))
1860 functionEnter(thr);
1861 IN_VM(
1862 checkString(thr, str);
1863 )
1864 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1865 functionExit(thr);
1866 JNI_END
1867
1868 JNI_ENTRY_CHECKED(void *,
1869 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1870 jarray array,
1871 jboolean *isCopy))
1872 functionEnterCritical(thr);
1873 IN_VM(
1874 check_is_primitive_array(thr, array);
1875 )
1876 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1877 if (result != NULL) {
1878 result = check_jni_wrap_copy_array(thr, array, result);
1879 }
1880 functionExit(thr);
1881 return result;
1882 JNI_END
1883
1884 JNI_ENTRY_CHECKED(void,
1885 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1886 jarray array,
1887 void *carray,
1888 jint mode))
1889 functionEnterCriticalExceptionAllowed(thr);
1890 IN_VM(
1891 check_is_primitive_array(thr, array);
1892 )
1893 // Check the element array...
1894 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical",
1895 array, carray, mode, JNI_TRUE);
1896 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1897 functionExit(thr);
1898 JNI_END
1899
1900 JNI_ENTRY_CHECKED(const jchar*,
1901 checked_jni_GetStringCritical(JNIEnv *env,
1902 jstring string,
1903 jboolean *isCopy))
1904 functionEnterCritical(thr);
1905 IN_VM(
1906 checkString(thr, string);
1907 )
1908 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1909 functionExit(thr);
1910 return result;
1911 JNI_END
1912
1913 JNI_ENTRY_CHECKED(void,
1914 checked_jni_ReleaseStringCritical(JNIEnv *env,
1915 jstring str,
1916 const jchar *chars))
1917 functionEnterCriticalExceptionAllowed(thr);
1918 IN_VM(
1919 checkString(thr, str);
1920 )
1921 /* The Hotspot JNI code does not use the parameters, so just check the
1922 * string parameter as a minor sanity check
1923 */
1924 UNCHECKED()->ReleaseStringCritical(env, str, chars);
1925 functionExit(thr);
1926 JNI_END
1927
1928 JNI_ENTRY_CHECKED(jweak,
1929 checked_jni_NewWeakGlobalRef(JNIEnv *env,
1930 jobject obj))
1931 functionEnter(thr);
1932 IN_VM(
1933 if (obj != NULL) {
1934 jniCheck::validate_handle(thr, obj);
1935 }
1936 )
1937 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1938 functionExit(thr);
1939 return result;
1940 JNI_END
1941
1942 JNI_ENTRY_CHECKED(void,
1943 checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1944 jweak ref))
1945 functionEnterExceptionAllowed(thr);
1946 IN_VM(
1947 if (ref && !JNIHandles::is_weak_global_handle(ref)) {
1948 ReportJNIFatalError(thr,
1949 "Invalid weak global JNI handle passed to DeleteWeakGlobalRef");
1950 }
1951 )
1952 UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1953 functionExit(thr);
1954 JNI_END
1955
1956 JNI_ENTRY_CHECKED(jboolean,
1957 checked_jni_ExceptionCheck(JNIEnv *env))
1958 thr->clear_pending_jni_exception_check();
1959 functionEnterExceptionAllowed(thr);
1960 jboolean result = UNCHECKED()->ExceptionCheck(env);
1961 functionExit(thr);
1962 return result;
1963 JNI_END
1964
1965 JNI_ENTRY_CHECKED(jobject,
1966 checked_jni_NewDirectByteBuffer(JNIEnv *env,
1967 void *address,
1968 jlong capacity))
1969 functionEnter(thr);
1970 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1971 functionExit(thr);
1972 return result;
1973 JNI_END
1974
1975 JNI_ENTRY_CHECKED(void *,
1976 checked_jni_GetDirectBufferAddress(JNIEnv *env,
1977 jobject buf))
1978 functionEnter(thr);
1979 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1980 functionExit(thr);
1981 return result;
1982 JNI_END
1983
1984 JNI_ENTRY_CHECKED(jlong,
1985 checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1986 jobject buf))
1987 functionEnter(thr);
1988 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1989 functionExit(thr);
1990 return result;
1991 JNI_END
1992
1993 JNI_ENTRY_CHECKED(jobjectRefType,
1994 checked_jni_GetObjectRefType(JNIEnv *env,
1995 jobject obj))
1996 functionEnter(thr);
1997 /* validate the object being passed */
1998 IN_VM(
1999 jniCheck::validate_object(thr, obj);
2000 )
2001 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
2002 functionExit(thr);
2003 return result;
2004 JNI_END
2005
2006
2007 JNI_ENTRY_CHECKED(jint,
2008 checked_jni_GetVersion(JNIEnv *env))
2009 functionEnter(thr);
2010 jint result = UNCHECKED()->GetVersion(env);
2011 functionExit(thr);
2012 return result;
2013 JNI_END
2014
2015 JNI_ENTRY_CHECKED(jobject,
2016 checked_jni_GetModule(JNIEnv *env,
2017 jclass clazz))
2018 functionEnter(thr);
2019 jobject result = UNCHECKED()->GetModule(env,clazz);
2020 functionExit(thr);
2021 return result;
2022 JNI_END
2023
2024 /*
2025 * Structure containing all checked jni functions
2026 */
2027 struct JNINativeInterface_ checked_jni_NativeInterface = {
2028 NULL,
2029 NULL,
2030 NULL,
2031
2032 NULL,
2033
2034 checked_jni_GetVersion,
2035
2036 checked_jni_DefineClass,
2037 checked_jni_FindClass,
2038
2039 checked_jni_FromReflectedMethod,
2040 checked_jni_FromReflectedField,
2041
2042 checked_jni_ToReflectedMethod,
2043
2044 checked_jni_GetSuperclass,
2045 checked_jni_IsAssignableFrom,
2046
2047 checked_jni_ToReflectedField,
2048
2049 checked_jni_Throw,
2050 checked_jni_ThrowNew,
2051 checked_jni_ExceptionOccurred,
2052 checked_jni_ExceptionDescribe,
2053 checked_jni_ExceptionClear,
2054 checked_jni_FatalError,
2055
2056 checked_jni_PushLocalFrame,
2057 checked_jni_PopLocalFrame,
2058
2059 checked_jni_NewGlobalRef,
2060 checked_jni_DeleteGlobalRef,
2061 checked_jni_DeleteLocalRef,
2062 checked_jni_IsSameObject,
2063
2064 checked_jni_NewLocalRef,
2065 checked_jni_EnsureLocalCapacity,
2066
2067 checked_jni_AllocObject,
2068 checked_jni_NewObject,
2069 checked_jni_NewObjectV,
2070 checked_jni_NewObjectA,
2071
2072 checked_jni_GetObjectClass,
2073 checked_jni_IsInstanceOf,
2074
2075 checked_jni_GetMethodID,
2076
2077 checked_jni_CallObjectMethod,
2078 checked_jni_CallObjectMethodV,
2079 checked_jni_CallObjectMethodA,
2080 checked_jni_CallBooleanMethod,
2081 checked_jni_CallBooleanMethodV,
2082 checked_jni_CallBooleanMethodA,
2083 checked_jni_CallByteMethod,
2084 checked_jni_CallByteMethodV,
2085 checked_jni_CallByteMethodA,
2086 checked_jni_CallCharMethod,
2087 checked_jni_CallCharMethodV,
2088 checked_jni_CallCharMethodA,
2089 checked_jni_CallShortMethod,
2090 checked_jni_CallShortMethodV,
2091 checked_jni_CallShortMethodA,
2092 checked_jni_CallIntMethod,
2093 checked_jni_CallIntMethodV,
2094 checked_jni_CallIntMethodA,
2095 checked_jni_CallLongMethod,
2096 checked_jni_CallLongMethodV,
2097 checked_jni_CallLongMethodA,
2098 checked_jni_CallFloatMethod,
2099 checked_jni_CallFloatMethodV,
2100 checked_jni_CallFloatMethodA,
2101 checked_jni_CallDoubleMethod,
2102 checked_jni_CallDoubleMethodV,
2103 checked_jni_CallDoubleMethodA,
2104 checked_jni_CallVoidMethod,
2105 checked_jni_CallVoidMethodV,
2106 checked_jni_CallVoidMethodA,
2107
2108 checked_jni_CallNonvirtualObjectMethod,
2109 checked_jni_CallNonvirtualObjectMethodV,
2110 checked_jni_CallNonvirtualObjectMethodA,
2111 checked_jni_CallNonvirtualBooleanMethod,
2112 checked_jni_CallNonvirtualBooleanMethodV,
2113 checked_jni_CallNonvirtualBooleanMethodA,
2114 checked_jni_CallNonvirtualByteMethod,
2115 checked_jni_CallNonvirtualByteMethodV,
2116 checked_jni_CallNonvirtualByteMethodA,
2117 checked_jni_CallNonvirtualCharMethod,
2118 checked_jni_CallNonvirtualCharMethodV,
2119 checked_jni_CallNonvirtualCharMethodA,
2120 checked_jni_CallNonvirtualShortMethod,
2121 checked_jni_CallNonvirtualShortMethodV,
2122 checked_jni_CallNonvirtualShortMethodA,
2123 checked_jni_CallNonvirtualIntMethod,
2124 checked_jni_CallNonvirtualIntMethodV,
2125 checked_jni_CallNonvirtualIntMethodA,
2126 checked_jni_CallNonvirtualLongMethod,
2127 checked_jni_CallNonvirtualLongMethodV,
2128 checked_jni_CallNonvirtualLongMethodA,
2129 checked_jni_CallNonvirtualFloatMethod,
2130 checked_jni_CallNonvirtualFloatMethodV,
2131 checked_jni_CallNonvirtualFloatMethodA,
2132 checked_jni_CallNonvirtualDoubleMethod,
2133 checked_jni_CallNonvirtualDoubleMethodV,
2134 checked_jni_CallNonvirtualDoubleMethodA,
2135 checked_jni_CallNonvirtualVoidMethod,
2136 checked_jni_CallNonvirtualVoidMethodV,
2137 checked_jni_CallNonvirtualVoidMethodA,
2138
2139 checked_jni_GetFieldID,
2140
2141 checked_jni_GetObjectField,
2142 checked_jni_GetBooleanField,
2143 checked_jni_GetByteField,
2144 checked_jni_GetCharField,
2145 checked_jni_GetShortField,
2146 checked_jni_GetIntField,
2147 checked_jni_GetLongField,
2148 checked_jni_GetFloatField,
2149 checked_jni_GetDoubleField,
2150
2151 checked_jni_SetObjectField,
2152 checked_jni_SetBooleanField,
2153 checked_jni_SetByteField,
2154 checked_jni_SetCharField,
2155 checked_jni_SetShortField,
2156 checked_jni_SetIntField,
2157 checked_jni_SetLongField,
2158 checked_jni_SetFloatField,
2159 checked_jni_SetDoubleField,
2160
2161 checked_jni_GetStaticMethodID,
2162
2163 checked_jni_CallStaticObjectMethod,
2164 checked_jni_CallStaticObjectMethodV,
2165 checked_jni_CallStaticObjectMethodA,
2166 checked_jni_CallStaticBooleanMethod,
2167 checked_jni_CallStaticBooleanMethodV,
2168 checked_jni_CallStaticBooleanMethodA,
2169 checked_jni_CallStaticByteMethod,
2170 checked_jni_CallStaticByteMethodV,
2171 checked_jni_CallStaticByteMethodA,
2172 checked_jni_CallStaticCharMethod,
2173 checked_jni_CallStaticCharMethodV,
2174 checked_jni_CallStaticCharMethodA,
2175 checked_jni_CallStaticShortMethod,
2176 checked_jni_CallStaticShortMethodV,
2177 checked_jni_CallStaticShortMethodA,
2178 checked_jni_CallStaticIntMethod,
2179 checked_jni_CallStaticIntMethodV,
2180 checked_jni_CallStaticIntMethodA,
2181 checked_jni_CallStaticLongMethod,
2182 checked_jni_CallStaticLongMethodV,
2183 checked_jni_CallStaticLongMethodA,
2184 checked_jni_CallStaticFloatMethod,
2185 checked_jni_CallStaticFloatMethodV,
2186 checked_jni_CallStaticFloatMethodA,
2187 checked_jni_CallStaticDoubleMethod,
2188 checked_jni_CallStaticDoubleMethodV,
2189 checked_jni_CallStaticDoubleMethodA,
2190 checked_jni_CallStaticVoidMethod,
2191 checked_jni_CallStaticVoidMethodV,
2192 checked_jni_CallStaticVoidMethodA,
2193
2194 checked_jni_GetStaticFieldID,
2195
2196 checked_jni_GetStaticObjectField,
2197 checked_jni_GetStaticBooleanField,
2198 checked_jni_GetStaticByteField,
2199 checked_jni_GetStaticCharField,
2200 checked_jni_GetStaticShortField,
2201 checked_jni_GetStaticIntField,
2202 checked_jni_GetStaticLongField,
2203 checked_jni_GetStaticFloatField,
2204 checked_jni_GetStaticDoubleField,
2205
2206 checked_jni_SetStaticObjectField,
2207 checked_jni_SetStaticBooleanField,
2208 checked_jni_SetStaticByteField,
2209 checked_jni_SetStaticCharField,
2210 checked_jni_SetStaticShortField,
2211 checked_jni_SetStaticIntField,
2212 checked_jni_SetStaticLongField,
2213 checked_jni_SetStaticFloatField,
2214 checked_jni_SetStaticDoubleField,
2215
2216 checked_jni_NewString,
2217 checked_jni_GetStringLength,
2218 checked_jni_GetStringChars,
2219 checked_jni_ReleaseStringChars,
2220
2221 checked_jni_NewStringUTF,
2222 checked_jni_GetStringUTFLength,
2223 checked_jni_GetStringUTFChars,
2224 checked_jni_ReleaseStringUTFChars,
2225
2226 checked_jni_GetArrayLength,
2227
2228 checked_jni_NewObjectArray,
2229 checked_jni_GetObjectArrayElement,
2230 checked_jni_SetObjectArrayElement,
2231
2232 checked_jni_NewBooleanArray,
2233 checked_jni_NewByteArray,
2234 checked_jni_NewCharArray,
2235 checked_jni_NewShortArray,
2236 checked_jni_NewIntArray,
2237 checked_jni_NewLongArray,
2238 checked_jni_NewFloatArray,
2239 checked_jni_NewDoubleArray,
2240
2241 checked_jni_GetBooleanArrayElements,
2242 checked_jni_GetByteArrayElements,
2243 checked_jni_GetCharArrayElements,
2244 checked_jni_GetShortArrayElements,
2245 checked_jni_GetIntArrayElements,
2246 checked_jni_GetLongArrayElements,
2247 checked_jni_GetFloatArrayElements,
2248 checked_jni_GetDoubleArrayElements,
2249
2250 checked_jni_ReleaseBooleanArrayElements,
2251 checked_jni_ReleaseByteArrayElements,
2252 checked_jni_ReleaseCharArrayElements,
2253 checked_jni_ReleaseShortArrayElements,
2254 checked_jni_ReleaseIntArrayElements,
2255 checked_jni_ReleaseLongArrayElements,
2256 checked_jni_ReleaseFloatArrayElements,
2257 checked_jni_ReleaseDoubleArrayElements,
2258
2259 checked_jni_GetBooleanArrayRegion,
2260 checked_jni_GetByteArrayRegion,
2261 checked_jni_GetCharArrayRegion,
2262 checked_jni_GetShortArrayRegion,
2263 checked_jni_GetIntArrayRegion,
2264 checked_jni_GetLongArrayRegion,
2265 checked_jni_GetFloatArrayRegion,
2266 checked_jni_GetDoubleArrayRegion,
2267
2268 checked_jni_SetBooleanArrayRegion,
2269 checked_jni_SetByteArrayRegion,
2270 checked_jni_SetCharArrayRegion,
2271 checked_jni_SetShortArrayRegion,
2272 checked_jni_SetIntArrayRegion,
2273 checked_jni_SetLongArrayRegion,
2274 checked_jni_SetFloatArrayRegion,
2275 checked_jni_SetDoubleArrayRegion,
2276
2277 checked_jni_RegisterNatives,
2278 checked_jni_UnregisterNatives,
2279
2280 checked_jni_MonitorEnter,
2281 checked_jni_MonitorExit,
2282
2283 checked_jni_GetJavaVM,
2284
2285 checked_jni_GetStringRegion,
2286 checked_jni_GetStringUTFRegion,
2287
2288 checked_jni_GetPrimitiveArrayCritical,
2289 checked_jni_ReleasePrimitiveArrayCritical,
2290
2291 checked_jni_GetStringCritical,
2292 checked_jni_ReleaseStringCritical,
2293
2294 checked_jni_NewWeakGlobalRef,
2295 checked_jni_DeleteWeakGlobalRef,
2296
2297 checked_jni_ExceptionCheck,
2298
2299 checked_jni_NewDirectByteBuffer,
2300 checked_jni_GetDirectBufferAddress,
2301 checked_jni_GetDirectBufferCapacity,
2302
2303 // New 1.6 Features
2304
2305 checked_jni_GetObjectRefType,
2306
2307 // Module Features
2308
2309 checked_jni_GetModule,
2310
2311 };
2312
2313
2314 // Returns the function structure
2315 struct JNINativeInterface_* jni_functions_check() {
2316
2317 unchecked_jni_NativeInterface = jni_functions_nocheck();
2318
2319 // make sure the last pointer in the checked table is not null, indicating
2320 // an addition to the JNINativeInterface_ structure without initializing
2321 // it in the checked table.
2322 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \
2323 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)
2324 assert(*lastPtr != 0,
2325 "Mismatched JNINativeInterface tables, check for new entries");
2326
2327 // with -verbose:jni this message will print
2328 log_debug(jni, resolve)("Checked JNI functions are being used to validate JNI usage");
2329
2330 return &checked_jni_NativeInterface;
2331 }