Thu, 24 May 2018 17:06:56 +0800
Merge
1 /*
2 * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 /*
26 * This file has been modified by Loongson Technology in 2015. These
27 * modifications are Copyright (c) 2015 Loongson Technology, and are made
28 * available on the same license terms set forth above.
29 */
31 #include "precompiled.hpp"
32 #include "classfile/systemDictionary.hpp"
33 #include "classfile/vmSymbols.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/jni.h"
39 #include "prims/jniCheck.hpp"
40 #include "prims/jvm_misc.hpp"
41 #include "runtime/fieldDescriptor.hpp"
42 #include "runtime/handles.hpp"
43 #include "runtime/interfaceSupport.hpp"
44 #include "runtime/jfieldIDWorkaround.hpp"
45 #include "runtime/thread.inline.hpp"
46 #ifdef TARGET_ARCH_x86
47 # include "jniTypes_x86.hpp"
48 #endif
49 #ifdef TARGET_ARCH_sparc
50 # include "jniTypes_sparc.hpp"
51 #endif
52 #ifdef TARGET_ARCH_zero
53 # include "jniTypes_zero.hpp"
54 #endif
55 #ifdef TARGET_ARCH_arm
56 # include "jniTypes_arm.hpp"
57 #endif
58 #ifdef TARGET_ARCH_ppc
59 # include "jniTypes_ppc.hpp"
60 #endif
61 #ifdef TARGET_ARCH_mips
62 # include "jniTypes_mips.hpp"
63 #endif
65 // Complain every extra number of unplanned local refs
66 #define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32
68 // Heap objects are allowed to be directly referenced only in VM code,
69 // not in native code.
71 #define ASSERT_OOPS_ALLOWED \
72 assert(JavaThread::current()->thread_state() == _thread_in_vm, \
73 "jniCheck examining oops in bad state.")
76 // Execute the given block of source code with the thread in VM state.
77 // To do this, transition from the NATIVE state to the VM state, execute
78 // the code, and transtition back. The ThreadInVMfromNative constructor
79 // performs the transition to VM state, its destructor restores the
80 // NATIVE state.
82 #define IN_VM(source_code) { \
83 { \
84 ThreadInVMfromNative __tiv(thr); \
85 source_code \
86 } \
87 }
90 /*
91 * DECLARATIONS
92 */
94 static struct JNINativeInterface_ * unchecked_jni_NativeInterface;
97 /*
98 * MACRO DEFINITIONS
99 */
101 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the
102 // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles
103 // to be created if a fatal error should occur.
105 // Check for thread not attached to VM; need to catch this before
106 // assertions in the wrapper routines might fire
108 // Check for env being the one value appropriate for this thread.
110 #define JNI_ENTRY_CHECKED(result_type, header) \
111 extern "C" { \
112 result_type JNICALL header { \
113 JavaThread* thr = (JavaThread*)ThreadLocalStorage::get_thread_slow();\
114 if (thr == NULL || !thr->is_Java_thread()) { \
115 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \
116 os::abort(true); \
117 } \
118 JNIEnv* xenv = thr->jni_environment(); \
119 if (env != xenv) { \
120 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \
121 } \
122 VM_ENTRY_BASE(result_type, header, thr)
125 #define UNCHECKED() (unchecked_jni_NativeInterface)
127 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread";
128 static const char * warn_bad_class_descriptor = "JNI FindClass received a bad class descriptor \"%s\". A correct class descriptor " \
129 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases.";
130 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread";
131 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \
132 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical";
133 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI";
134 static const char * fatal_received_null_class = "JNI received a null class";
135 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class";
136 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";
137 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call";
138 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call";
139 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations";
140 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation";
141 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation";
142 static const char * fatal_non_array = "Non-array passed to JNI array operations";
143 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI";
144 static const char * fatal_should_be_static = "Non-static field ID passed to JNI";
145 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI";
146 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations";
147 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations";
148 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI";
149 static const char * fatal_null_object = "Null object passed to JNI";
150 static const char * fatal_wrong_field = "Wrong field ID passed to JNI";
151 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations";
152 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations";
153 static const char * fatal_non_string = "JNI string operation received a non-string";
156 // When in VM state:
157 static void ReportJNIWarning(JavaThread* thr, const char *msg) {
158 tty->print_cr("WARNING in native method: %s", msg);
159 thr->print_stack();
160 }
162 // When in NATIVE state:
163 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
164 IN_VM(
165 ReportJNIFatalError(thr, msg);
166 )
167 }
169 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
170 IN_VM(
171 ReportJNIWarning(thr, msg);
172 )
173 }
178 /*
179 * SUPPORT FUNCTIONS
180 */
182 /**
183 * Check whether or not a programmer has actually checked for exceptions. According
184 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
185 *
186 * There are two cases where the programmer needs to check for exceptions without
187 * being able to first check an error code:
188 *
189 * - The JNI functions that invoke a Java method return the result of the Java method.
190 * The programmer must call ExceptionOccurred() to check for possible exceptions
191 * that occurred during the execution of the Java method.
192 *
193 * - Some of the JNI array access functions do not return an error code, but may
194 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException.
195 *
196 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
197 *
198 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning
199 * for these functions would be pedantic.
200 */
201 static inline void
202 check_pending_exception(JavaThread* thr) {
203 if (thr->has_pending_exception()) {
204 NativeReportJNIWarning(thr, "JNI call made with exception pending");
205 }
206 if (thr->is_pending_jni_exception_check()) {
207 IN_VM(
208 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s",
209 thr->get_pending_jni_exception_check());
210 thr->print_stack();
211 )
212 thr->clear_pending_jni_exception_check(); // Just complain once
213 }
214 }
216 /**
217 * Add to the planned number of handles. I.e. plus current live & warning threshold
218 */
219 static inline void
220 add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) {
221 handles->set_planned_capacity(capacity +
222 handles->get_number_of_live_handles() +
223 CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
224 }
227 static inline void
228 functionEnterCritical(JavaThread* thr)
229 {
230 check_pending_exception(thr);
231 }
233 static inline void
234 functionEnterCriticalExceptionAllowed(JavaThread* thr)
235 {
236 }
238 static inline void
239 functionEnter(JavaThread* thr)
240 {
241 if (thr->in_critical()) {
242 tty->print_cr("%s", warn_other_function_in_critical);
243 }
244 check_pending_exception(thr);
245 }
247 static inline void
248 functionEnterExceptionAllowed(JavaThread* thr)
249 {
250 if (thr->in_critical()) {
251 tty->print_cr("%s", warn_other_function_in_critical);
252 }
253 }
255 static inline void
256 functionExit(JavaThread* thr)
257 {
258 JNIHandleBlock* handles = thr->active_handles();
259 size_t planned_capacity = handles->get_planned_capacity();
260 size_t live_handles = handles->get_number_of_live_handles();
261 if (live_handles > planned_capacity) {
262 IN_VM(
263 tty->print_cr("WARNING: JNI local refs: %zu, exceeds capacity: %zu",
264 live_handles, planned_capacity);
265 thr->print_stack();
266 )
267 // Complain just the once, reset to current + warn threshold
268 add_planned_handle_capacity(handles, 0);
269 }
270 }
272 static inline void
273 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
274 {
275 fieldDescriptor fd;
277 /* make sure it is a static field */
278 if (!jfieldIDWorkaround::is_static_jfieldID(fid))
279 ReportJNIFatalError(thr, fatal_should_be_static);
281 /* validate the class being passed */
282 ASSERT_OOPS_ALLOWED;
283 Klass* k_oop = jniCheck::validate_class(thr, cls, false);
285 /* check for proper subclass hierarchy */
286 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
287 Klass* f_oop = id->holder();
288 if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))
289 ReportJNIFatalError(thr, fatal_wrong_static_field);
291 /* check for proper field type */
292 if (!id->find_local_field(&fd))
293 ReportJNIFatalError(thr, fatal_static_field_not_found);
294 if ((fd.field_type() != ftype) &&
295 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
296 ReportJNIFatalError(thr, fatal_static_field_mismatch);
297 }
298 }
300 static inline void
301 checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)
302 {
303 fieldDescriptor fd;
305 /* make sure it is an instance field */
306 if (jfieldIDWorkaround::is_static_jfieldID(fid))
307 ReportJNIFatalError(thr, fatal_should_be_nonstatic);
309 /* validate the object being passed and then get its class */
310 ASSERT_OOPS_ALLOWED;
311 oop oopObj = jniCheck::validate_object(thr, obj);
312 if (!oopObj) {
313 ReportJNIFatalError(thr, fatal_null_object);
314 }
315 Klass* k_oop = oopObj->klass();
317 if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {
318 ReportJNIFatalError(thr, fatal_wrong_field);
319 }
321 /* make sure the field exists */
322 int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);
323 if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))
324 ReportJNIFatalError(thr, fatal_wrong_field);
326 /* check for proper field type */
327 if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,
328 false, &fd))
329 ReportJNIFatalError(thr, fatal_instance_field_not_found);
331 if ((fd.field_type() != ftype) &&
332 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
333 ReportJNIFatalError(thr, fatal_instance_field_mismatch);
334 }
335 }
337 static inline void
338 checkString(JavaThread* thr, jstring js)
339 {
340 ASSERT_OOPS_ALLOWED;
341 oop s = jniCheck::validate_object(thr, js);
342 if (!s || !java_lang_String::is_instance(s))
343 ReportJNIFatalError(thr, fatal_non_string);
344 }
346 static inline arrayOop
347 check_is_array(JavaThread* thr, jarray jArray)
348 {
349 ASSERT_OOPS_ALLOWED;
350 arrayOop aOop;
352 aOop = (arrayOop)jniCheck::validate_object(thr, jArray);
353 if (aOop == NULL || !aOop->is_array()) {
354 ReportJNIFatalError(thr, fatal_non_array);
355 }
356 return aOop;
357 }
359 static inline arrayOop
360 check_is_primitive_array(JavaThread* thr, jarray jArray) {
361 arrayOop aOop = check_is_array(thr, jArray);
363 if (!aOop->is_typeArray()) {
364 ReportJNIFatalError(thr, fatal_prim_type_array_expected);
365 }
366 return aOop;
367 }
369 static inline void
370 check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)
371 {
372 BasicType array_type;
373 arrayOop aOop;
375 aOop = check_is_primitive_array(thr, jArray);
376 array_type = TypeArrayKlass::cast(aOop->klass())->element_type();
377 if (array_type != elementType) {
378 ReportJNIFatalError(thr, fatal_element_type_mismatch);
379 }
380 }
382 static inline void
383 check_is_obj_array(JavaThread* thr, jarray jArray) {
384 arrayOop aOop = check_is_array(thr, jArray);
385 if (!aOop->is_objArray()) {
386 ReportJNIFatalError(thr, fatal_object_array_expected);
387 }
388 }
390 /*
391 * Copy and wrap array elements for bounds checking.
392 * Remember the original elements (GuardedMemory::get_tag())
393 */
394 static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,
395 void* orig_elements) {
396 void* result;
397 IN_VM(
398 oop a = JNIHandles::resolve_non_null(array);
399 size_t len = arrayOop(a)->length() <<
400 TypeArrayKlass::cast(a->klass())->log2_element_size();
401 result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);
402 )
403 return result;
404 }
406 static void* check_wrapped_array(JavaThread* thr, const char* fn_name,
407 void* obj, void* carray, size_t* rsz) {
408 if (carray == NULL) {
409 tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj));
410 NativeReportJNIFatalError(thr, "Elements vector NULL");
411 }
412 GuardedMemory guarded(carray);
413 void* orig_result = guarded.get_tag();
414 if (!guarded.verify_guards()) {
415 tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds "
416 "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: "
417 PTR_FORMAT, p2i(obj), p2i(carray));
418 guarded.print_on(tty);
419 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
420 "failed bounds check");
421 }
422 if (orig_result == NULL) {
423 tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: "
424 PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray));
425 guarded.print_on(tty);
426 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
427 "unrecognized elements");
428 }
429 if (rsz != NULL) {
430 *rsz = guarded.get_user_size();
431 }
432 return orig_result;
433 }
435 static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,
436 void* obj, void* carray, jint mode) {
437 size_t sz;
438 void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);
439 switch (mode) {
440 case 0:
441 memcpy(orig_result, carray, sz);
442 GuardedMemory::free_copy(carray);
443 break;
444 case JNI_COMMIT:
445 memcpy(orig_result, carray, sz);
446 break;
447 case JNI_ABORT:
448 GuardedMemory::free_copy(carray);
449 break;
450 default:
451 tty->print_cr("%s: Unrecognized mode %i releasing array "
452 PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));
453 NativeReportJNIFatalError(thr, "Unrecognized array release mode");
454 }
455 return orig_result;
456 }
458 oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {
459 if (JNIHandles::is_frame_handle(thr, obj) ||
460 JNIHandles::is_local_handle(thr, obj) ||
461 JNIHandles::is_global_handle(obj) ||
462 JNIHandles::is_weak_global_handle(obj)) {
463 ASSERT_OOPS_ALLOWED;
464 return JNIHandles::resolve_external_guard(obj);
465 }
466 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
467 return NULL;
468 }
471 Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) {
472 ASSERT_OOPS_ALLOWED;
473 // Do the jmethodID check
474 Method* moop = Method::checked_resolve_jmethod_id(method_id);
475 if (moop == NULL) {
476 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
477 }
478 return moop;
479 }
482 oop jniCheck::validate_object(JavaThread* thr, jobject obj) {
483 if (!obj)
484 return NULL;
485 ASSERT_OOPS_ALLOWED;
486 oop oopObj = jniCheck::validate_handle(thr, obj);
487 if (!oopObj) {
488 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
489 }
490 return oopObj;
491 }
493 // Warn if a class descriptor is in decorated form; class descriptors
494 // passed to JNI findClass should not be decorated unless they are
495 // array descriptors.
496 void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {
497 if (name == NULL) return; // implementation accepts NULL so just return
499 size_t len = strlen(name);
501 if (len >= 2 &&
502 name[0] == JVM_SIGNATURE_CLASS && // 'L'
503 name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';'
504 char msg[JVM_MAXPATHLEN];
505 jio_snprintf(msg, JVM_MAXPATHLEN, warn_bad_class_descriptor, name);
506 ReportJNIWarning(thr, msg);
507 }
508 }
510 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {
511 ASSERT_OOPS_ALLOWED;
512 oop mirror = jniCheck::validate_handle(thr, clazz);
513 if (!mirror) {
514 ReportJNIFatalError(thr, fatal_received_null_class);
515 }
517 if (mirror->klass() != SystemDictionary::Class_klass()) {
518 ReportJNIFatalError(thr, fatal_class_not_a_class);
519 }
521 Klass* k = java_lang_Class::as_Klass(mirror);
522 // Make allowances for primitive classes ...
523 if (!(k != NULL || allow_primitive && java_lang_Class::is_primitive(mirror))) {
524 ReportJNIFatalError(thr, fatal_class_not_a_class);
525 }
526 return k;
527 }
529 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {
530 ASSERT_OOPS_ALLOWED;
531 assert(klass != NULL, "klass argument must have a value");
533 if (!klass->oop_is_instance() ||
534 !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) {
535 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);
536 }
537 }
539 void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) {
540 /* validate the object being passed */
541 ASSERT_OOPS_ALLOWED;
542 jniCheck::validate_jmethod_id(thr, method_id);
543 jniCheck::validate_object(thr, obj);
544 }
546 void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) {
547 /* validate the class being passed */
548 ASSERT_OOPS_ALLOWED;
549 jniCheck::validate_jmethod_id(thr, method_id);
550 jniCheck::validate_class(thr, clazz, false);
551 }
554 /*
555 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
556 */
558 JNI_ENTRY_CHECKED(jclass,
559 checked_jni_DefineClass(JNIEnv *env,
560 const char *name,
561 jobject loader,
562 const jbyte *buf,
563 jsize len))
564 functionEnter(thr);
565 IN_VM(
566 jniCheck::validate_object(thr, loader);
567 )
568 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
569 functionExit(thr);
570 return result;
571 JNI_END
573 JNI_ENTRY_CHECKED(jclass,
574 checked_jni_FindClass(JNIEnv *env,
575 const char *name))
576 functionEnter(thr);
577 IN_VM(
578 jniCheck::validate_class_descriptor(thr, name);
579 )
580 jclass result = UNCHECKED()->FindClass(env, name);
581 functionExit(thr);
582 return result;
583 JNI_END
585 JNI_ENTRY_CHECKED(jmethodID,
586 checked_jni_FromReflectedMethod(JNIEnv *env,
587 jobject method))
588 functionEnter(thr);
589 IN_VM(
590 jniCheck::validate_object(thr, method);
591 )
592 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
593 functionExit(thr);
594 return result;
595 JNI_END
597 JNI_ENTRY_CHECKED(jfieldID,
598 checked_jni_FromReflectedField(JNIEnv *env,
599 jobject field))
600 functionEnter(thr);
601 IN_VM(
602 jniCheck::validate_object(thr, field);
603 )
604 jfieldID result = UNCHECKED()->FromReflectedField(env, field);
605 functionExit(thr);
606 return result;
607 JNI_END
609 JNI_ENTRY_CHECKED(jobject,
610 checked_jni_ToReflectedMethod(JNIEnv *env,
611 jclass cls,
612 jmethodID methodID,
613 jboolean isStatic))
614 functionEnter(thr);
615 IN_VM(
616 jniCheck::validate_class(thr, cls, false);
617 jniCheck::validate_jmethod_id(thr, methodID);
618 )
619 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
620 isStatic);
621 functionExit(thr);
622 return result;
623 JNI_END
625 JNI_ENTRY_CHECKED(jclass,
626 checked_jni_GetSuperclass(JNIEnv *env,
627 jclass sub))
628 functionEnter(thr);
629 IN_VM(
630 jniCheck::validate_class(thr, sub, true);
631 )
632 jclass result = UNCHECKED()->GetSuperclass(env, sub);
633 functionExit(thr);
634 return result;
635 JNI_END
637 JNI_ENTRY_CHECKED(jboolean,
638 checked_jni_IsAssignableFrom(JNIEnv *env,
639 jclass sub,
640 jclass sup))
641 functionEnter(thr);
642 IN_VM(
643 jniCheck::validate_class(thr, sub, true);
644 jniCheck::validate_class(thr, sup, true);
645 )
646 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
647 functionExit(thr);
648 return result;
649 JNI_END
651 JNI_ENTRY_CHECKED(jobject,
652 checked_jni_ToReflectedField(JNIEnv *env,
653 jclass cls,
654 jfieldID fieldID,
655 jboolean isStatic))
656 functionEnter(thr);
657 IN_VM(
658 jniCheck::validate_class(thr, cls, false);
659 )
660 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
661 isStatic);
662 functionExit(thr);
663 return result;
664 JNI_END
666 JNI_ENTRY_CHECKED(jint,
667 checked_jni_Throw(JNIEnv *env,
668 jthrowable obj))
669 functionEnter(thr);
670 IN_VM(
671 oop oopObj = jniCheck::validate_object(thr, obj);
672 if (oopObj == NULL) {
673 // Unchecked Throw tolerates a NULL obj, so just warn
674 ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
675 } else {
676 jniCheck::validate_throwable_klass(thr, oopObj->klass());
677 }
678 )
679 jint result = UNCHECKED()->Throw(env, obj);
680 functionExit(thr);
681 return result;
682 JNI_END
684 JNI_ENTRY_CHECKED(jint,
685 checked_jni_ThrowNew(JNIEnv *env,
686 jclass clazz,
687 const char *msg))
688 functionEnter(thr);
689 IN_VM(
690 Klass* k = jniCheck::validate_class(thr, clazz, false);
691 assert(k != NULL, "validate_class shouldn't return NULL Klass*");
692 jniCheck::validate_throwable_klass(thr, k);
693 )
694 jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
695 functionExit(thr);
696 return result;
697 JNI_END
699 JNI_ENTRY_CHECKED(jthrowable,
700 checked_jni_ExceptionOccurred(JNIEnv *env))
701 thr->clear_pending_jni_exception_check();
702 functionEnterExceptionAllowed(thr);
703 jthrowable result = UNCHECKED()->ExceptionOccurred(env);
704 functionExit(thr);
705 return result;
706 JNI_END
708 JNI_ENTRY_CHECKED(void,
709 checked_jni_ExceptionDescribe(JNIEnv *env))
710 functionEnterExceptionAllowed(thr);
711 UNCHECKED()->ExceptionDescribe(env);
712 functionExit(thr);
713 JNI_END
715 JNI_ENTRY_CHECKED(void,
716 checked_jni_ExceptionClear(JNIEnv *env))
717 thr->clear_pending_jni_exception_check();
718 functionEnterExceptionAllowed(thr);
719 UNCHECKED()->ExceptionClear(env);
720 functionExit(thr);
721 JNI_END
723 JNI_ENTRY_CHECKED(void,
724 checked_jni_FatalError(JNIEnv *env,
725 const char *msg))
726 thr->clear_pending_jni_exception_check();
727 functionEnter(thr);
728 UNCHECKED()->FatalError(env, msg);
729 functionExit(thr);
730 JNI_END
732 JNI_ENTRY_CHECKED(jint,
733 checked_jni_PushLocalFrame(JNIEnv *env,
734 jint capacity))
735 functionEnterExceptionAllowed(thr);
736 if (capacity < 0)
737 NativeReportJNIFatalError(thr, "negative capacity");
738 jint result = UNCHECKED()->PushLocalFrame(env, capacity);
739 if (result == JNI_OK) {
740 add_planned_handle_capacity(thr->active_handles(), capacity);
741 }
742 functionExit(thr);
743 return result;
744 JNI_END
746 JNI_ENTRY_CHECKED(jobject,
747 checked_jni_PopLocalFrame(JNIEnv *env,
748 jobject result))
749 functionEnterExceptionAllowed(thr);
750 jobject res = UNCHECKED()->PopLocalFrame(env, result);
751 functionExit(thr);
752 return res;
753 JNI_END
755 JNI_ENTRY_CHECKED(jobject,
756 checked_jni_NewGlobalRef(JNIEnv *env,
757 jobject lobj))
758 functionEnter(thr);
759 IN_VM(
760 if (lobj != NULL) {
761 jniCheck::validate_handle(thr, lobj);
762 }
763 )
764 jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
765 functionExit(thr);
766 return result;
767 JNI_END
769 JNI_ENTRY_CHECKED(void,
770 checked_jni_DeleteGlobalRef(JNIEnv *env,
771 jobject gref))
772 functionEnterExceptionAllowed(thr);
773 IN_VM(
774 jniCheck::validate_object(thr, gref);
775 if (gref && !JNIHandles::is_global_handle(gref)) {
776 ReportJNIFatalError(thr,
777 "Invalid global JNI handle passed to DeleteGlobalRef");
778 }
779 )
780 UNCHECKED()->DeleteGlobalRef(env,gref);
781 functionExit(thr);
782 JNI_END
784 JNI_ENTRY_CHECKED(void,
785 checked_jni_DeleteLocalRef(JNIEnv *env,
786 jobject obj))
787 functionEnterExceptionAllowed(thr);
788 IN_VM(
789 jniCheck::validate_object(thr, obj);
790 if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
791 JNIHandles::is_frame_handle(thr, obj)))
792 ReportJNIFatalError(thr,
793 "Invalid local JNI handle passed to DeleteLocalRef");
794 )
795 UNCHECKED()->DeleteLocalRef(env, obj);
796 functionExit(thr);
797 JNI_END
799 JNI_ENTRY_CHECKED(jboolean,
800 checked_jni_IsSameObject(JNIEnv *env,
801 jobject obj1,
802 jobject obj2))
803 functionEnterExceptionAllowed(thr);
804 IN_VM(
805 /* This JNI function can be used to compare weak global references
806 * to NULL objects. If the handles are valid, but contain NULL,
807 * then don't attempt to validate the object.
808 */
809 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
810 jniCheck::validate_object(thr, obj1);
811 }
812 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
813 jniCheck::validate_object(thr, obj2);
814 }
815 )
816 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
817 functionExit(thr);
818 return result;
819 JNI_END
821 JNI_ENTRY_CHECKED(jobject,
822 checked_jni_NewLocalRef(JNIEnv *env,
823 jobject ref))
824 functionEnter(thr);
825 IN_VM(
826 if (ref != NULL) {
827 jniCheck::validate_handle(thr, ref);
828 }
829 )
830 jobject result = UNCHECKED()->NewLocalRef(env, ref);
831 functionExit(thr);
832 return result;
833 JNI_END
835 JNI_ENTRY_CHECKED(jint,
836 checked_jni_EnsureLocalCapacity(JNIEnv *env,
837 jint capacity))
838 functionEnter(thr);
839 if (capacity < 0) {
840 NativeReportJNIFatalError(thr, "negative capacity");
841 }
842 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
843 if (result == JNI_OK) {
844 add_planned_handle_capacity(thr->active_handles(), capacity);
845 }
846 functionExit(thr);
847 return result;
848 JNI_END
850 JNI_ENTRY_CHECKED(jobject,
851 checked_jni_AllocObject(JNIEnv *env,
852 jclass clazz))
853 functionEnter(thr);
854 IN_VM(
855 jniCheck::validate_class(thr, clazz, false);
856 )
857 jobject result = UNCHECKED()->AllocObject(env,clazz);
858 functionExit(thr);
859 return result;
860 JNI_END
862 JNI_ENTRY_CHECKED(jobject,
863 checked_jni_NewObject(JNIEnv *env,
864 jclass clazz,
865 jmethodID methodID,
866 ...))
867 functionEnter(thr);
868 va_list args;
869 IN_VM(
870 jniCheck::validate_class(thr, clazz, false);
871 jniCheck::validate_jmethod_id(thr, methodID);
872 )
873 va_start(args, methodID);
874 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
875 va_end(args);
876 functionExit(thr);
877 return result;
878 JNI_END
880 JNI_ENTRY_CHECKED(jobject,
881 checked_jni_NewObjectV(JNIEnv *env,
882 jclass clazz,
883 jmethodID methodID,
884 va_list args))
885 functionEnter(thr);
886 IN_VM(
887 jniCheck::validate_class(thr, clazz, false);
888 jniCheck::validate_jmethod_id(thr, methodID);
889 )
890 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
891 functionExit(thr);
892 return result;
893 JNI_END
895 JNI_ENTRY_CHECKED(jobject,
896 checked_jni_NewObjectA(JNIEnv *env,
897 jclass clazz,
898 jmethodID methodID,
899 const jvalue *args))
900 functionEnter(thr);
901 IN_VM(
902 jniCheck::validate_class(thr, clazz, false);
903 jniCheck::validate_jmethod_id(thr, methodID);
904 )
905 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
906 functionExit(thr);
907 return result;
908 JNI_END
910 JNI_ENTRY_CHECKED(jclass,
911 checked_jni_GetObjectClass(JNIEnv *env,
912 jobject obj))
913 functionEnter(thr);
914 IN_VM(
915 jniCheck::validate_object(thr, obj);
916 )
917 jclass result = UNCHECKED()->GetObjectClass(env,obj);
918 functionExit(thr);
919 return result;
920 JNI_END
922 JNI_ENTRY_CHECKED(jboolean,
923 checked_jni_IsInstanceOf(JNIEnv *env,
924 jobject obj,
925 jclass clazz))
926 functionEnter(thr);
927 IN_VM(
928 jniCheck::validate_object(thr, obj);
929 jniCheck::validate_class(thr, clazz, true);
930 )
931 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
932 functionExit(thr);
933 return result;
934 JNI_END
936 JNI_ENTRY_CHECKED(jmethodID,
937 checked_jni_GetMethodID(JNIEnv *env,
938 jclass clazz,
939 const char *name,
940 const char *sig))
941 functionEnter(thr);
942 IN_VM(
943 jniCheck::validate_class(thr, clazz, false);
944 )
945 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
946 functionExit(thr);
947 return result;
948 JNI_END
950 #define WRAPPER_CallMethod(ResultType, Result) \
951 JNI_ENTRY_CHECKED(ResultType, \
952 checked_jni_Call##Result##Method(JNIEnv *env, \
953 jobject obj, \
954 jmethodID methodID, \
955 ...)) \
956 functionEnter(thr); \
957 va_list args; \
958 IN_VM( \
959 jniCheck::validate_call_object(thr, obj, methodID); \
960 ) \
961 va_start(args,methodID); \
962 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
963 args); \
964 va_end(args); \
965 thr->set_pending_jni_exception_check("Call"#Result"Method"); \
966 functionExit(thr); \
967 return result; \
968 JNI_END \
969 \
970 JNI_ENTRY_CHECKED(ResultType, \
971 checked_jni_Call##Result##MethodV(JNIEnv *env, \
972 jobject obj, \
973 jmethodID methodID, \
974 va_list args)) \
975 functionEnter(thr); \
976 IN_VM(\
977 jniCheck::validate_call_object(thr, obj, methodID); \
978 ) \
979 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
980 args); \
981 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
982 functionExit(thr); \
983 return result; \
984 JNI_END \
985 \
986 JNI_ENTRY_CHECKED(ResultType, \
987 checked_jni_Call##Result##MethodA(JNIEnv *env, \
988 jobject obj, \
989 jmethodID methodID, \
990 const jvalue * args)) \
991 functionEnter(thr); \
992 IN_VM( \
993 jniCheck::validate_call_object(thr, obj, methodID); \
994 ) \
995 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
996 args); \
997 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
998 functionExit(thr); \
999 return result; \
1000 JNI_END
1002 WRAPPER_CallMethod(jobject,Object)
1003 WRAPPER_CallMethod(jboolean,Boolean)
1004 WRAPPER_CallMethod(jbyte,Byte)
1005 WRAPPER_CallMethod(jshort,Short)
1006 WRAPPER_CallMethod(jchar,Char)
1007 WRAPPER_CallMethod(jint,Int)
1008 WRAPPER_CallMethod(jlong,Long)
1009 WRAPPER_CallMethod(jfloat,Float)
1010 WRAPPER_CallMethod(jdouble,Double)
1012 JNI_ENTRY_CHECKED(void,
1013 checked_jni_CallVoidMethod(JNIEnv *env, \
1014 jobject obj, \
1015 jmethodID methodID, \
1016 ...))
1017 functionEnter(thr);
1018 va_list args;
1019 IN_VM(
1020 jniCheck::validate_call_object(thr, obj, methodID);
1021 )
1022 va_start(args,methodID);
1023 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1024 va_end(args);
1025 thr->set_pending_jni_exception_check("CallVoidMethod");
1026 functionExit(thr);
1027 JNI_END
1029 JNI_ENTRY_CHECKED(void,
1030 checked_jni_CallVoidMethodV(JNIEnv *env,
1031 jobject obj,
1032 jmethodID methodID,
1033 va_list args))
1034 functionEnter(thr);
1035 IN_VM(
1036 jniCheck::validate_call_object(thr, obj, methodID);
1037 )
1038 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1039 thr->set_pending_jni_exception_check("CallVoidMethodV");
1040 functionExit(thr);
1041 JNI_END
1043 JNI_ENTRY_CHECKED(void,
1044 checked_jni_CallVoidMethodA(JNIEnv *env,
1045 jobject obj,
1046 jmethodID methodID,
1047 const jvalue * args))
1048 functionEnter(thr);
1049 IN_VM(
1050 jniCheck::validate_call_object(thr, obj, methodID);
1051 )
1052 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1053 thr->set_pending_jni_exception_check("CallVoidMethodA");
1054 functionExit(thr);
1055 JNI_END
1057 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1058 JNI_ENTRY_CHECKED(ResultType, \
1059 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1060 jobject obj, \
1061 jclass clazz, \
1062 jmethodID methodID, \
1063 ...)) \
1064 functionEnter(thr); \
1065 va_list args; \
1066 IN_VM( \
1067 jniCheck::validate_call_object(thr, obj, methodID); \
1068 jniCheck::validate_call_class(thr, clazz, methodID); \
1069 ) \
1070 va_start(args,methodID); \
1071 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1072 obj, \
1073 clazz, \
1074 methodID,\
1075 args); \
1076 va_end(args); \
1077 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1078 functionExit(thr); \
1079 return result; \
1080 JNI_END \
1081 \
1082 JNI_ENTRY_CHECKED(ResultType, \
1083 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1084 jobject obj, \
1085 jclass clazz, \
1086 jmethodID methodID, \
1087 va_list args)) \
1088 functionEnter(thr); \
1089 IN_VM( \
1090 jniCheck::validate_call_object(thr, obj, methodID); \
1091 jniCheck::validate_call_class(thr, clazz, methodID); \
1092 ) \
1093 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1094 obj, \
1095 clazz, \
1096 methodID,\
1097 args); \
1098 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1099 functionExit(thr); \
1100 return result; \
1101 JNI_END \
1102 \
1103 JNI_ENTRY_CHECKED(ResultType, \
1104 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1105 jobject obj, \
1106 jclass clazz, \
1107 jmethodID methodID, \
1108 const jvalue * args)) \
1109 functionEnter(thr); \
1110 IN_VM( \
1111 jniCheck::validate_call_object(thr, obj, methodID); \
1112 jniCheck::validate_call_class(thr, clazz, methodID); \
1113 ) \
1114 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1115 obj, \
1116 clazz, \
1117 methodID,\
1118 args); \
1119 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1120 functionExit(thr); \
1121 return result; \
1122 JNI_END
1124 WRAPPER_CallNonvirtualMethod(jobject,Object)
1125 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1126 WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1127 WRAPPER_CallNonvirtualMethod(jshort,Short)
1128 WRAPPER_CallNonvirtualMethod(jchar,Char)
1129 WRAPPER_CallNonvirtualMethod(jint,Int)
1130 WRAPPER_CallNonvirtualMethod(jlong,Long)
1131 WRAPPER_CallNonvirtualMethod(jfloat,Float)
1132 WRAPPER_CallNonvirtualMethod(jdouble,Double)
1134 JNI_ENTRY_CHECKED(void,
1135 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1136 jobject obj,
1137 jclass clazz,
1138 jmethodID methodID,
1139 ...))
1140 functionEnter(thr);
1141 va_list args;
1142 IN_VM(
1143 jniCheck::validate_call_object(thr, obj, methodID);
1144 jniCheck::validate_call_class(thr, clazz, methodID);
1145 )
1146 va_start(args,methodID);
1147 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1148 va_end(args);
1149 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1150 functionExit(thr);
1151 JNI_END
1153 JNI_ENTRY_CHECKED(void,
1154 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1155 jobject obj,
1156 jclass clazz,
1157 jmethodID methodID,
1158 va_list args))
1159 functionEnter(thr);
1160 IN_VM(
1161 jniCheck::validate_call_object(thr, obj, methodID);
1162 jniCheck::validate_call_class(thr, clazz, methodID);
1163 )
1164 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1165 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1166 functionExit(thr);
1167 JNI_END
1169 JNI_ENTRY_CHECKED(void,
1170 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1171 jobject obj,
1172 jclass clazz,
1173 jmethodID methodID,
1174 const jvalue * args))
1175 functionEnter(thr);
1176 IN_VM(
1177 jniCheck::validate_call_object(thr, obj, methodID);
1178 jniCheck::validate_call_class(thr, clazz, methodID);
1179 )
1180 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1181 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1182 functionExit(thr);
1183 JNI_END
1185 JNI_ENTRY_CHECKED(jfieldID,
1186 checked_jni_GetFieldID(JNIEnv *env,
1187 jclass clazz,
1188 const char *name,
1189 const char *sig))
1190 functionEnter(thr);
1191 IN_VM(
1192 jniCheck::validate_class(thr, clazz, false);
1193 )
1194 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1195 functionExit(thr);
1196 return result;
1197 JNI_END
1199 #define WRAPPER_GetField(ReturnType,Result,FieldType) \
1200 JNI_ENTRY_CHECKED(ReturnType, \
1201 checked_jni_Get##Result##Field(JNIEnv *env, \
1202 jobject obj, \
1203 jfieldID fieldID)) \
1204 functionEnter(thr); \
1205 IN_VM( \
1206 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1207 ) \
1208 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1209 functionExit(thr); \
1210 return result; \
1211 JNI_END
1213 WRAPPER_GetField(jobject, Object, T_OBJECT)
1214 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1215 WRAPPER_GetField(jbyte, Byte, T_BYTE)
1216 WRAPPER_GetField(jshort, Short, T_SHORT)
1217 WRAPPER_GetField(jchar, Char, T_CHAR)
1218 WRAPPER_GetField(jint, Int, T_INT)
1219 WRAPPER_GetField(jlong, Long, T_LONG)
1220 WRAPPER_GetField(jfloat, Float, T_FLOAT)
1221 WRAPPER_GetField(jdouble, Double, T_DOUBLE)
1223 #define WRAPPER_SetField(ValueType,Result,FieldType) \
1224 JNI_ENTRY_CHECKED(void, \
1225 checked_jni_Set##Result##Field(JNIEnv *env, \
1226 jobject obj, \
1227 jfieldID fieldID, \
1228 ValueType val)) \
1229 functionEnter(thr); \
1230 IN_VM( \
1231 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1232 ) \
1233 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1234 functionExit(thr); \
1235 JNI_END
1237 WRAPPER_SetField(jobject, Object, T_OBJECT)
1238 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1239 WRAPPER_SetField(jbyte, Byte, T_BYTE)
1240 WRAPPER_SetField(jshort, Short, T_SHORT)
1241 WRAPPER_SetField(jchar, Char, T_CHAR)
1242 WRAPPER_SetField(jint, Int, T_INT)
1243 WRAPPER_SetField(jlong, Long, T_LONG)
1244 WRAPPER_SetField(jfloat, Float, T_FLOAT)
1245 WRAPPER_SetField(jdouble, Double, T_DOUBLE)
1248 JNI_ENTRY_CHECKED(jmethodID,
1249 checked_jni_GetStaticMethodID(JNIEnv *env,
1250 jclass clazz,
1251 const char *name,
1252 const char *sig))
1253 functionEnter(thr);
1254 IN_VM(
1255 jniCheck::validate_class(thr, clazz, false);
1256 )
1257 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1258 functionExit(thr);
1259 return result;
1260 JNI_END
1262 #define WRAPPER_CallStaticMethod(ReturnType,Result) \
1263 JNI_ENTRY_CHECKED(ReturnType, \
1264 checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1265 jclass clazz, \
1266 jmethodID methodID, \
1267 ...)) \
1268 functionEnter(thr); \
1269 va_list args; \
1270 IN_VM( \
1271 jniCheck::validate_jmethod_id(thr, methodID); \
1272 jniCheck::validate_class(thr, clazz, false); \
1273 ) \
1274 va_start(args,methodID); \
1275 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1276 clazz, \
1277 methodID, \
1278 args); \
1279 va_end(args); \
1280 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1281 functionExit(thr); \
1282 return result; \
1283 JNI_END \
1284 \
1285 JNI_ENTRY_CHECKED(ReturnType, \
1286 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1287 jclass clazz, \
1288 jmethodID methodID,\
1289 va_list args)) \
1290 functionEnter(thr); \
1291 IN_VM( \
1292 jniCheck::validate_jmethod_id(thr, methodID); \
1293 jniCheck::validate_class(thr, clazz, false); \
1294 ) \
1295 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1296 clazz, \
1297 methodID, \
1298 args); \
1299 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1300 functionExit(thr); \
1301 return result; \
1302 JNI_END \
1303 \
1304 JNI_ENTRY_CHECKED(ReturnType, \
1305 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1306 jclass clazz, \
1307 jmethodID methodID, \
1308 const jvalue *args)) \
1309 functionEnter(thr); \
1310 IN_VM( \
1311 jniCheck::validate_jmethod_id(thr, methodID); \
1312 jniCheck::validate_class(thr, clazz, false); \
1313 ) \
1314 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1315 clazz, \
1316 methodID, \
1317 args); \
1318 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1319 functionExit(thr); \
1320 return result; \
1321 JNI_END
1323 WRAPPER_CallStaticMethod(jobject,Object)
1324 WRAPPER_CallStaticMethod(jboolean,Boolean)
1325 WRAPPER_CallStaticMethod(jbyte,Byte)
1326 WRAPPER_CallStaticMethod(jshort,Short)
1327 WRAPPER_CallStaticMethod(jchar,Char)
1328 WRAPPER_CallStaticMethod(jint,Int)
1329 WRAPPER_CallStaticMethod(jlong,Long)
1330 WRAPPER_CallStaticMethod(jfloat,Float)
1331 WRAPPER_CallStaticMethod(jdouble,Double)
1333 JNI_ENTRY_CHECKED(void,
1334 checked_jni_CallStaticVoidMethod(JNIEnv *env,
1335 jclass cls,
1336 jmethodID methodID,
1337 ...))
1338 functionEnter(thr);
1339 va_list args;
1340 IN_VM(
1341 jniCheck::validate_jmethod_id(thr, methodID);
1342 jniCheck::validate_class(thr, cls, false);
1343 )
1344 va_start(args,methodID);
1345 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1346 va_end(args);
1347 thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1348 functionExit(thr);
1349 JNI_END
1351 JNI_ENTRY_CHECKED(void,
1352 checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1353 jclass cls,
1354 jmethodID methodID,
1355 va_list args))
1356 functionEnter(thr);
1357 IN_VM(
1358 jniCheck::validate_jmethod_id(thr, methodID);
1359 jniCheck::validate_class(thr, cls, false);
1360 )
1361 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1362 thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1363 functionExit(thr);
1364 JNI_END
1366 JNI_ENTRY_CHECKED(void,
1367 checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1368 jclass cls,
1369 jmethodID methodID,
1370 const jvalue * args))
1371 functionEnter(thr);
1372 IN_VM(
1373 jniCheck::validate_jmethod_id(thr, methodID);
1374 jniCheck::validate_class(thr, cls, false);
1375 )
1376 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1377 thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1378 functionExit(thr);
1379 JNI_END
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
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
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)
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
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)
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
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
1470 // Arbitrary (but well-known) tag
1471 const void* STRING_TAG = (void*)0x47114711;
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
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
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
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
1554 // Arbitrary (but well-known) tag - different than GetStringChars
1555 const void* STRING_UTF_TAG = (void*) 0x48124812;
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, mtInternal);
1577 }
1578 functionExit(thr);
1579 return new_result;
1580 JNI_END
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
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
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
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_array(thr, array);
1646 )
1647 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1648 functionExit(thr);
1649 return result;
1650 JNI_END
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_array(thr, array);
1660 )
1661 UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1662 functionExit(thr);
1663 JNI_END
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
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)
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
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)
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); \
1726 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1727 functionExit(thr); \
1728 JNI_END
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)
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
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)
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
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)
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
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
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
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
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
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
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
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
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", array, carray, mode);
1895 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1896 functionExit(thr);
1897 JNI_END
1899 JNI_ENTRY_CHECKED(const jchar*,
1900 checked_jni_GetStringCritical(JNIEnv *env,
1901 jstring string,
1902 jboolean *isCopy))
1903 functionEnterCritical(thr);
1904 IN_VM(
1905 checkString(thr, string);
1906 )
1907 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1908 functionExit(thr);
1909 return result;
1910 JNI_END
1912 JNI_ENTRY_CHECKED(void,
1913 checked_jni_ReleaseStringCritical(JNIEnv *env,
1914 jstring str,
1915 const jchar *chars))
1916 functionEnterCriticalExceptionAllowed(thr);
1917 IN_VM(
1918 checkString(thr, str);
1919 )
1920 /* The Hotspot JNI code does not use the parameters, so just check the
1921 * string parameter as a minor sanity check
1922 */
1923 UNCHECKED()->ReleaseStringCritical(env, str, chars);
1924 functionExit(thr);
1925 JNI_END
1927 JNI_ENTRY_CHECKED(jweak,
1928 checked_jni_NewWeakGlobalRef(JNIEnv *env,
1929 jobject obj))
1930 functionEnter(thr);
1931 IN_VM(
1932 if (obj != NULL) {
1933 jniCheck::validate_handle(thr, obj);
1934 }
1935 )
1936 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1937 functionExit(thr);
1938 return result;
1939 JNI_END
1941 JNI_ENTRY_CHECKED(void,
1942 checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1943 jweak ref))
1944 functionEnterExceptionAllowed(thr);
1945 UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1946 functionExit(thr);
1947 JNI_END
1949 JNI_ENTRY_CHECKED(jboolean,
1950 checked_jni_ExceptionCheck(JNIEnv *env))
1951 thr->clear_pending_jni_exception_check();
1952 functionEnterExceptionAllowed(thr);
1953 jboolean result = UNCHECKED()->ExceptionCheck(env);
1954 functionExit(thr);
1955 return result;
1956 JNI_END
1958 JNI_ENTRY_CHECKED(jobject,
1959 checked_jni_NewDirectByteBuffer(JNIEnv *env,
1960 void *address,
1961 jlong capacity))
1962 functionEnter(thr);
1963 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1964 functionExit(thr);
1965 return result;
1966 JNI_END
1968 JNI_ENTRY_CHECKED(void *,
1969 checked_jni_GetDirectBufferAddress(JNIEnv *env,
1970 jobject buf))
1971 functionEnter(thr);
1972 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1973 functionExit(thr);
1974 return result;
1975 JNI_END
1977 JNI_ENTRY_CHECKED(jlong,
1978 checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1979 jobject buf))
1980 functionEnter(thr);
1981 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1982 functionExit(thr);
1983 return result;
1984 JNI_END
1986 JNI_ENTRY_CHECKED(jobjectRefType,
1987 checked_jni_GetObjectRefType(JNIEnv *env,
1988 jobject obj))
1989 functionEnter(thr);
1990 /* validate the object being passed */
1991 IN_VM(
1992 jniCheck::validate_object(thr, obj);
1993 )
1994 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1995 functionExit(thr);
1996 return result;
1997 JNI_END
2000 JNI_ENTRY_CHECKED(jint,
2001 checked_jni_GetVersion(JNIEnv *env))
2002 functionEnter(thr);
2003 jint result = UNCHECKED()->GetVersion(env);
2004 functionExit(thr);
2005 return result;
2006 JNI_END
2010 /*
2011 * Structure containing all checked jni functions
2012 */
2013 struct JNINativeInterface_ checked_jni_NativeInterface = {
2014 NULL,
2015 NULL,
2016 NULL,
2018 NULL,
2020 checked_jni_GetVersion,
2022 checked_jni_DefineClass,
2023 checked_jni_FindClass,
2025 checked_jni_FromReflectedMethod,
2026 checked_jni_FromReflectedField,
2028 checked_jni_ToReflectedMethod,
2030 checked_jni_GetSuperclass,
2031 checked_jni_IsAssignableFrom,
2033 checked_jni_ToReflectedField,
2035 checked_jni_Throw,
2036 checked_jni_ThrowNew,
2037 checked_jni_ExceptionOccurred,
2038 checked_jni_ExceptionDescribe,
2039 checked_jni_ExceptionClear,
2040 checked_jni_FatalError,
2042 checked_jni_PushLocalFrame,
2043 checked_jni_PopLocalFrame,
2045 checked_jni_NewGlobalRef,
2046 checked_jni_DeleteGlobalRef,
2047 checked_jni_DeleteLocalRef,
2048 checked_jni_IsSameObject,
2050 checked_jni_NewLocalRef,
2051 checked_jni_EnsureLocalCapacity,
2053 checked_jni_AllocObject,
2054 checked_jni_NewObject,
2055 checked_jni_NewObjectV,
2056 checked_jni_NewObjectA,
2058 checked_jni_GetObjectClass,
2059 checked_jni_IsInstanceOf,
2061 checked_jni_GetMethodID,
2063 checked_jni_CallObjectMethod,
2064 checked_jni_CallObjectMethodV,
2065 checked_jni_CallObjectMethodA,
2066 checked_jni_CallBooleanMethod,
2067 checked_jni_CallBooleanMethodV,
2068 checked_jni_CallBooleanMethodA,
2069 checked_jni_CallByteMethod,
2070 checked_jni_CallByteMethodV,
2071 checked_jni_CallByteMethodA,
2072 checked_jni_CallCharMethod,
2073 checked_jni_CallCharMethodV,
2074 checked_jni_CallCharMethodA,
2075 checked_jni_CallShortMethod,
2076 checked_jni_CallShortMethodV,
2077 checked_jni_CallShortMethodA,
2078 checked_jni_CallIntMethod,
2079 checked_jni_CallIntMethodV,
2080 checked_jni_CallIntMethodA,
2081 checked_jni_CallLongMethod,
2082 checked_jni_CallLongMethodV,
2083 checked_jni_CallLongMethodA,
2084 checked_jni_CallFloatMethod,
2085 checked_jni_CallFloatMethodV,
2086 checked_jni_CallFloatMethodA,
2087 checked_jni_CallDoubleMethod,
2088 checked_jni_CallDoubleMethodV,
2089 checked_jni_CallDoubleMethodA,
2090 checked_jni_CallVoidMethod,
2091 checked_jni_CallVoidMethodV,
2092 checked_jni_CallVoidMethodA,
2094 checked_jni_CallNonvirtualObjectMethod,
2095 checked_jni_CallNonvirtualObjectMethodV,
2096 checked_jni_CallNonvirtualObjectMethodA,
2097 checked_jni_CallNonvirtualBooleanMethod,
2098 checked_jni_CallNonvirtualBooleanMethodV,
2099 checked_jni_CallNonvirtualBooleanMethodA,
2100 checked_jni_CallNonvirtualByteMethod,
2101 checked_jni_CallNonvirtualByteMethodV,
2102 checked_jni_CallNonvirtualByteMethodA,
2103 checked_jni_CallNonvirtualCharMethod,
2104 checked_jni_CallNonvirtualCharMethodV,
2105 checked_jni_CallNonvirtualCharMethodA,
2106 checked_jni_CallNonvirtualShortMethod,
2107 checked_jni_CallNonvirtualShortMethodV,
2108 checked_jni_CallNonvirtualShortMethodA,
2109 checked_jni_CallNonvirtualIntMethod,
2110 checked_jni_CallNonvirtualIntMethodV,
2111 checked_jni_CallNonvirtualIntMethodA,
2112 checked_jni_CallNonvirtualLongMethod,
2113 checked_jni_CallNonvirtualLongMethodV,
2114 checked_jni_CallNonvirtualLongMethodA,
2115 checked_jni_CallNonvirtualFloatMethod,
2116 checked_jni_CallNonvirtualFloatMethodV,
2117 checked_jni_CallNonvirtualFloatMethodA,
2118 checked_jni_CallNonvirtualDoubleMethod,
2119 checked_jni_CallNonvirtualDoubleMethodV,
2120 checked_jni_CallNonvirtualDoubleMethodA,
2121 checked_jni_CallNonvirtualVoidMethod,
2122 checked_jni_CallNonvirtualVoidMethodV,
2123 checked_jni_CallNonvirtualVoidMethodA,
2125 checked_jni_GetFieldID,
2127 checked_jni_GetObjectField,
2128 checked_jni_GetBooleanField,
2129 checked_jni_GetByteField,
2130 checked_jni_GetCharField,
2131 checked_jni_GetShortField,
2132 checked_jni_GetIntField,
2133 checked_jni_GetLongField,
2134 checked_jni_GetFloatField,
2135 checked_jni_GetDoubleField,
2137 checked_jni_SetObjectField,
2138 checked_jni_SetBooleanField,
2139 checked_jni_SetByteField,
2140 checked_jni_SetCharField,
2141 checked_jni_SetShortField,
2142 checked_jni_SetIntField,
2143 checked_jni_SetLongField,
2144 checked_jni_SetFloatField,
2145 checked_jni_SetDoubleField,
2147 checked_jni_GetStaticMethodID,
2149 checked_jni_CallStaticObjectMethod,
2150 checked_jni_CallStaticObjectMethodV,
2151 checked_jni_CallStaticObjectMethodA,
2152 checked_jni_CallStaticBooleanMethod,
2153 checked_jni_CallStaticBooleanMethodV,
2154 checked_jni_CallStaticBooleanMethodA,
2155 checked_jni_CallStaticByteMethod,
2156 checked_jni_CallStaticByteMethodV,
2157 checked_jni_CallStaticByteMethodA,
2158 checked_jni_CallStaticCharMethod,
2159 checked_jni_CallStaticCharMethodV,
2160 checked_jni_CallStaticCharMethodA,
2161 checked_jni_CallStaticShortMethod,
2162 checked_jni_CallStaticShortMethodV,
2163 checked_jni_CallStaticShortMethodA,
2164 checked_jni_CallStaticIntMethod,
2165 checked_jni_CallStaticIntMethodV,
2166 checked_jni_CallStaticIntMethodA,
2167 checked_jni_CallStaticLongMethod,
2168 checked_jni_CallStaticLongMethodV,
2169 checked_jni_CallStaticLongMethodA,
2170 checked_jni_CallStaticFloatMethod,
2171 checked_jni_CallStaticFloatMethodV,
2172 checked_jni_CallStaticFloatMethodA,
2173 checked_jni_CallStaticDoubleMethod,
2174 checked_jni_CallStaticDoubleMethodV,
2175 checked_jni_CallStaticDoubleMethodA,
2176 checked_jni_CallStaticVoidMethod,
2177 checked_jni_CallStaticVoidMethodV,
2178 checked_jni_CallStaticVoidMethodA,
2180 checked_jni_GetStaticFieldID,
2182 checked_jni_GetStaticObjectField,
2183 checked_jni_GetStaticBooleanField,
2184 checked_jni_GetStaticByteField,
2185 checked_jni_GetStaticCharField,
2186 checked_jni_GetStaticShortField,
2187 checked_jni_GetStaticIntField,
2188 checked_jni_GetStaticLongField,
2189 checked_jni_GetStaticFloatField,
2190 checked_jni_GetStaticDoubleField,
2192 checked_jni_SetStaticObjectField,
2193 checked_jni_SetStaticBooleanField,
2194 checked_jni_SetStaticByteField,
2195 checked_jni_SetStaticCharField,
2196 checked_jni_SetStaticShortField,
2197 checked_jni_SetStaticIntField,
2198 checked_jni_SetStaticLongField,
2199 checked_jni_SetStaticFloatField,
2200 checked_jni_SetStaticDoubleField,
2202 checked_jni_NewString,
2203 checked_jni_GetStringLength,
2204 checked_jni_GetStringChars,
2205 checked_jni_ReleaseStringChars,
2207 checked_jni_NewStringUTF,
2208 checked_jni_GetStringUTFLength,
2209 checked_jni_GetStringUTFChars,
2210 checked_jni_ReleaseStringUTFChars,
2212 checked_jni_GetArrayLength,
2214 checked_jni_NewObjectArray,
2215 checked_jni_GetObjectArrayElement,
2216 checked_jni_SetObjectArrayElement,
2218 checked_jni_NewBooleanArray,
2219 checked_jni_NewByteArray,
2220 checked_jni_NewCharArray,
2221 checked_jni_NewShortArray,
2222 checked_jni_NewIntArray,
2223 checked_jni_NewLongArray,
2224 checked_jni_NewFloatArray,
2225 checked_jni_NewDoubleArray,
2227 checked_jni_GetBooleanArrayElements,
2228 checked_jni_GetByteArrayElements,
2229 checked_jni_GetCharArrayElements,
2230 checked_jni_GetShortArrayElements,
2231 checked_jni_GetIntArrayElements,
2232 checked_jni_GetLongArrayElements,
2233 checked_jni_GetFloatArrayElements,
2234 checked_jni_GetDoubleArrayElements,
2236 checked_jni_ReleaseBooleanArrayElements,
2237 checked_jni_ReleaseByteArrayElements,
2238 checked_jni_ReleaseCharArrayElements,
2239 checked_jni_ReleaseShortArrayElements,
2240 checked_jni_ReleaseIntArrayElements,
2241 checked_jni_ReleaseLongArrayElements,
2242 checked_jni_ReleaseFloatArrayElements,
2243 checked_jni_ReleaseDoubleArrayElements,
2245 checked_jni_GetBooleanArrayRegion,
2246 checked_jni_GetByteArrayRegion,
2247 checked_jni_GetCharArrayRegion,
2248 checked_jni_GetShortArrayRegion,
2249 checked_jni_GetIntArrayRegion,
2250 checked_jni_GetLongArrayRegion,
2251 checked_jni_GetFloatArrayRegion,
2252 checked_jni_GetDoubleArrayRegion,
2254 checked_jni_SetBooleanArrayRegion,
2255 checked_jni_SetByteArrayRegion,
2256 checked_jni_SetCharArrayRegion,
2257 checked_jni_SetShortArrayRegion,
2258 checked_jni_SetIntArrayRegion,
2259 checked_jni_SetLongArrayRegion,
2260 checked_jni_SetFloatArrayRegion,
2261 checked_jni_SetDoubleArrayRegion,
2263 checked_jni_RegisterNatives,
2264 checked_jni_UnregisterNatives,
2266 checked_jni_MonitorEnter,
2267 checked_jni_MonitorExit,
2269 checked_jni_GetJavaVM,
2271 checked_jni_GetStringRegion,
2272 checked_jni_GetStringUTFRegion,
2274 checked_jni_GetPrimitiveArrayCritical,
2275 checked_jni_ReleasePrimitiveArrayCritical,
2277 checked_jni_GetStringCritical,
2278 checked_jni_ReleaseStringCritical,
2280 checked_jni_NewWeakGlobalRef,
2281 checked_jni_DeleteWeakGlobalRef,
2283 checked_jni_ExceptionCheck,
2285 checked_jni_NewDirectByteBuffer,
2286 checked_jni_GetDirectBufferAddress,
2287 checked_jni_GetDirectBufferCapacity,
2289 // New 1.6 Features
2291 checked_jni_GetObjectRefType
2292 };
2295 // Returns the function structure
2296 struct JNINativeInterface_* jni_functions_check() {
2298 unchecked_jni_NativeInterface = jni_functions_nocheck();
2300 // make sure the last pointer in the checked table is not null, indicating
2301 // an addition to the JNINativeInterface_ structure without initializing
2302 // it in the checked table.
2303 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \
2304 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)
2305 assert(*lastPtr != 0,
2306 "Mismatched JNINativeInterface tables, check for new entries");
2308 // with -verbose:jni this message will print
2309 if (PrintJNIResolving) {
2310 tty->print_cr("Checked JNI functions are being used to " \
2311 "validate JNI usage");
2312 }
2314 return &checked_jni_NativeInterface;
2315 }