1 /* 2 * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "classfile/javaClasses.inline.hpp" 27 #include "classfile/systemDictionary.hpp" 28 #include "classfile/vmSymbols.hpp" 29 #include "memory/guardedMemory.hpp" 30 #include "oops/instanceKlass.hpp" 31 #include "oops/oop.inline.hpp" 32 #include "oops/symbol.hpp" 33 #include "prims/jni.h" 34 #include "prims/jniCheck.hpp" 35 #include "prims/jvm_misc.hpp" 36 #include "runtime/fieldDescriptor.hpp" 37 #include "runtime/handles.hpp" 38 #include "runtime/interfaceSupport.hpp" 39 #include "runtime/jfieldIDWorkaround.hpp" 40 #include "runtime/thread.inline.hpp" 41 42 // Complain every extra number of unplanned local refs 43 #define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32 44 45 // Heap objects are allowed to be directly referenced only in VM code, 46 // not in native code. 47 48 #define ASSERT_OOPS_ALLOWED \ 49 assert(JavaThread::current()->thread_state() == _thread_in_vm, \ 50 "jniCheck examining oops in bad state.") 51 52 53 // Execute the given block of source code with the thread in VM state. 54 // To do this, transition from the NATIVE state to the VM state, execute 55 // the code, and transtition back. The ThreadInVMfromNative constructor 56 // performs the transition to VM state, its destructor restores the 57 // NATIVE state. 58 59 #define IN_VM(source_code) { \ 60 { \ 61 ThreadInVMfromNative __tiv(thr); \ 62 source_code \ 63 } \ 64 } 65 66 67 /* 68 * DECLARATIONS 69 */ 70 71 static struct JNINativeInterface_ * unchecked_jni_NativeInterface; 72 73 74 /* 75 * MACRO DEFINITIONS 76 */ 77 78 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the 79 // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles 80 // to be created if a fatal error should occur. 81 82 // Check for thread not attached to VM; need to catch this before 83 // assertions in the wrapper routines might fire 84 85 // Check for env being the one value appropriate for this thread. 86 87 #define JNI_ENTRY_CHECKED(result_type, header) \ 88 extern "C" { \ 89 result_type JNICALL header { \ 90 JavaThread* thr = (JavaThread*) Thread::current_or_null(); \ 91 if (thr == NULL || !thr->is_Java_thread()) { \ 92 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \ 93 os::abort(true); \ 94 } \ 95 JNIEnv* xenv = thr->jni_environment(); \ 96 if (env != xenv) { \ 97 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \ 98 } \ 99 VM_ENTRY_BASE(result_type, header, thr) 100 101 102 #define UNCHECKED() (unchecked_jni_NativeInterface) 103 104 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread"; 105 static const char * warn_bad_class_descriptor1 = "JNI FindClass received a bad class descriptor \""; 106 static const char * warn_bad_class_descriptor2 = "\". A correct class descriptor " \ 107 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases."; 108 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread"; 109 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \ 110 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical"; 111 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI"; 112 static const char * fatal_received_null_class = "JNI received a null class"; 113 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class"; 114 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"; 115 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call"; 116 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call"; 117 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations"; 118 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation"; 119 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation"; 120 static const char * fatal_non_array = "Non-array passed to JNI array operations"; 121 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI"; 122 static const char * fatal_should_be_static = "Non-static field ID passed to JNI"; 123 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI"; 124 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations"; 125 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations"; 126 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI"; 127 static const char * fatal_null_object = "Null object passed to JNI"; 128 static const char * fatal_wrong_field = "Wrong field ID passed to JNI"; 129 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations"; 130 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations"; 131 static const char * fatal_non_string = "JNI string operation received a non-string"; 132 133 134 // When in VM state: 135 static void ReportJNIWarning(JavaThread* thr, const char *msg) { 136 tty->print_cr("WARNING in native method: %s", msg); 137 thr->print_stack(); 138 } 139 140 // When in NATIVE state: 141 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) { 142 IN_VM( 143 ReportJNIFatalError(thr, msg); 144 ) 145 } 146 147 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) { 148 IN_VM( 149 ReportJNIWarning(thr, msg); 150 ) 151 } 152 153 154 155 156 /* 157 * SUPPORT FUNCTIONS 158 */ 159 160 /** 161 * Check whether or not a programmer has actually checked for exceptions. According 162 * to the JNI Specification ("jni/spec/design.html#java_exceptions"): 163 * 164 * There are two cases where the programmer needs to check for exceptions without 165 * being able to first check an error code: 166 * 167 * - The JNI functions that invoke a Java method return the result of the Java method. 168 * The programmer must call ExceptionOccurred() to check for possible exceptions 169 * that occurred during the execution of the Java method. 170 * 171 * - Some of the JNI array access functions do not return an error code, but may 172 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException. 173 * 174 * In all other cases, a non-error return value guarantees that no exceptions have been thrown. 175 * 176 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning 177 * for these functions would be pedantic. 178 */ 179 static inline void 180 check_pending_exception(JavaThread* thr) { 181 if (thr->has_pending_exception()) { 182 NativeReportJNIWarning(thr, "JNI call made with exception pending"); 183 } 184 if (thr->is_pending_jni_exception_check()) { 185 IN_VM( 186 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s", 187 thr->get_pending_jni_exception_check()); 188 thr->print_stack(); 189 ) 190 thr->clear_pending_jni_exception_check(); // Just complain once 191 } 192 } 193 194 /** 195 * Add to the planned number of handles. I.e. plus current live & warning threshold 196 */ 197 static inline void 198 add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) { 199 handles->set_planned_capacity(capacity + 200 handles->get_number_of_live_handles() + 201 CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD); 202 } 203 204 205 static inline void 206 functionEnterCritical(JavaThread* thr) 207 { 208 check_pending_exception(thr); 209 } 210 211 static inline void 212 functionEnterCriticalExceptionAllowed(JavaThread* thr) 213 { 214 } 215 216 static inline void 217 functionEnter(JavaThread* thr) 218 { 219 if (thr->in_critical()) { 220 tty->print_cr("%s", warn_other_function_in_critical); 221 } 222 check_pending_exception(thr); 223 } 224 225 static inline void 226 functionEnterExceptionAllowed(JavaThread* thr) 227 { 228 if (thr->in_critical()) { 229 tty->print_cr("%s", warn_other_function_in_critical); 230 } 231 } 232 233 static inline void 234 functionExit(JavaThread* thr) 235 { 236 JNIHandleBlock* handles = thr->active_handles(); 237 size_t planned_capacity = handles->get_planned_capacity(); 238 size_t live_handles = handles->get_number_of_live_handles(); 239 if (live_handles > planned_capacity) { 240 IN_VM( 241 tty->print_cr("WARNING: JNI local refs: " SIZE_FORMAT ", exceeds capacity: " SIZE_FORMAT, 242 live_handles, planned_capacity); 243 thr->print_stack(); 244 ) 245 // Complain just the once, reset to current + warn threshold 246 add_planned_handle_capacity(handles, 0); 247 } 248 } 249 250 static inline void 251 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype) 252 { 253 fieldDescriptor fd; 254 255 /* make sure it is a static field */ 256 if (!jfieldIDWorkaround::is_static_jfieldID(fid)) 257 ReportJNIFatalError(thr, fatal_should_be_static); 258 259 /* validate the class being passed */ 260 ASSERT_OOPS_ALLOWED; 261 Klass* k_oop = jniCheck::validate_class(thr, cls, false); 262 263 /* check for proper subclass hierarchy */ 264 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid); 265 Klass* f_oop = id->holder(); 266 if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop)) 267 ReportJNIFatalError(thr, fatal_wrong_static_field); 268 269 /* check for proper field type */ 270 if (!id->find_local_field(&fd)) 271 ReportJNIFatalError(thr, fatal_static_field_not_found); 272 if ((fd.field_type() != ftype) && 273 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) { 274 ReportJNIFatalError(thr, fatal_static_field_mismatch); 275 } 276 } 277 278 static inline void 279 checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype) 280 { 281 fieldDescriptor fd; 282 283 /* make sure it is an instance field */ 284 if (jfieldIDWorkaround::is_static_jfieldID(fid)) 285 ReportJNIFatalError(thr, fatal_should_be_nonstatic); 286 287 /* validate the object being passed and then get its class */ 288 ASSERT_OOPS_ALLOWED; 289 oop oopObj = jniCheck::validate_object(thr, obj); 290 if (!oopObj) { 291 ReportJNIFatalError(thr, fatal_null_object); 292 } 293 Klass* k_oop = oopObj->klass(); 294 295 if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) { 296 ReportJNIFatalError(thr, fatal_wrong_field); 297 } 298 299 /* make sure the field exists */ 300 int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid); 301 if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset)) 302 ReportJNIFatalError(thr, fatal_wrong_field); 303 304 /* check for proper field type */ 305 if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset, 306 false, &fd)) 307 ReportJNIFatalError(thr, fatal_instance_field_not_found); 308 309 if ((fd.field_type() != ftype) && 310 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) { 311 ReportJNIFatalError(thr, fatal_instance_field_mismatch); 312 } 313 } 314 315 static inline void 316 checkString(JavaThread* thr, jstring js) 317 { 318 ASSERT_OOPS_ALLOWED; 319 oop s = jniCheck::validate_object(thr, js); 320 if (!s || !java_lang_String::is_instance(s)) 321 ReportJNIFatalError(thr, fatal_non_string); 322 } 323 324 static inline arrayOop 325 check_is_array(JavaThread* thr, jarray jArray) 326 { 327 ASSERT_OOPS_ALLOWED; 328 arrayOop aOop; 329 330 aOop = (arrayOop)jniCheck::validate_object(thr, jArray); 331 if (aOop == NULL || !aOop->is_array()) { 332 ReportJNIFatalError(thr, fatal_non_array); 333 } 334 return aOop; 335 } 336 337 static inline arrayOop 338 check_is_primitive_array(JavaThread* thr, jarray jArray) { 339 arrayOop aOop = check_is_array(thr, jArray); 340 341 if (!aOop->is_typeArray()) { 342 ReportJNIFatalError(thr, fatal_prim_type_array_expected); 343 } 344 return aOop; 345 } 346 347 static inline void 348 check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType) 349 { 350 BasicType array_type; 351 arrayOop aOop; 352 353 aOop = check_is_primitive_array(thr, jArray); 354 array_type = TypeArrayKlass::cast(aOop->klass())->element_type(); 355 if (array_type != elementType) { 356 ReportJNIFatalError(thr, fatal_element_type_mismatch); 357 } 358 } 359 360 static inline void 361 check_is_obj_array(JavaThread* thr, jarray jArray) { 362 arrayOop aOop = check_is_array(thr, jArray); 363 if (!aOop->is_objArray()) { 364 ReportJNIFatalError(thr, fatal_object_array_expected); 365 } 366 } 367 368 /* 369 * Copy and wrap array elements for bounds checking. 370 * Remember the original elements (GuardedMemory::get_tag()) 371 */ 372 static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array, 373 void* orig_elements) { 374 void* result; 375 IN_VM( 376 oop a = JNIHandles::resolve_non_null(array); 377 size_t len = arrayOop(a)->length() << 378 TypeArrayKlass::cast(a->klass())->log2_element_size(); 379 result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements); 380 ) 381 return result; 382 } 383 384 static void* check_wrapped_array(JavaThread* thr, const char* fn_name, 385 void* obj, void* carray, size_t* rsz) { 386 if (carray == NULL) { 387 tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj)); 388 NativeReportJNIFatalError(thr, "Elements vector NULL"); 389 } 390 GuardedMemory guarded(carray); 391 void* orig_result = guarded.get_tag(); 392 if (!guarded.verify_guards()) { 393 tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds " 394 "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: " 395 PTR_FORMAT, p2i(obj), p2i(carray)); 396 guarded.print_on(tty); 397 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: " 398 "failed bounds check"); 399 } 400 if (orig_result == NULL) { 401 tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: " 402 PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray)); 403 guarded.print_on(tty); 404 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: " 405 "unrecognized elements"); 406 } 407 if (rsz != NULL) { 408 *rsz = guarded.get_user_size(); 409 } 410 return orig_result; 411 } 412 413 static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name, 414 void* obj, void* carray, jint mode) { 415 size_t sz; 416 void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz); 417 switch (mode) { 418 case 0: 419 memcpy(orig_result, carray, sz); 420 GuardedMemory::free_copy(carray); 421 break; 422 case JNI_COMMIT: 423 memcpy(orig_result, carray, sz); 424 break; 425 case JNI_ABORT: 426 GuardedMemory::free_copy(carray); 427 break; 428 default: 429 tty->print_cr("%s: Unrecognized mode %i releasing array " 430 PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray)); 431 NativeReportJNIFatalError(thr, "Unrecognized array release mode"); 432 } 433 return orig_result; 434 } 435 436 oop jniCheck::validate_handle(JavaThread* thr, jobject obj) { 437 if (JNIHandles::is_frame_handle(thr, obj) || 438 JNIHandles::is_local_handle(thr, obj) || 439 JNIHandles::is_global_handle(obj) || 440 JNIHandles::is_weak_global_handle(obj)) { 441 ASSERT_OOPS_ALLOWED; 442 return JNIHandles::resolve_external_guard(obj); 443 } 444 ReportJNIFatalError(thr, fatal_bad_ref_to_jni); 445 return NULL; 446 } 447 448 449 Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) { 450 ASSERT_OOPS_ALLOWED; 451 // do the fast jmethodID check first 452 Method* moop = Method::checked_resolve_jmethod_id(method_id); 453 if (moop == NULL) { 454 ReportJNIFatalError(thr, fatal_wrong_class_or_method); 455 } 456 // jmethodIDs are supposed to be weak handles in the class loader data, 457 // but that can be expensive so check it last 458 else if (!Method::is_method_id(method_id)) { 459 ReportJNIFatalError(thr, fatal_non_weak_method); 460 } 461 return moop; 462 } 463 464 465 oop jniCheck::validate_object(JavaThread* thr, jobject obj) { 466 if (!obj) 467 return NULL; 468 ASSERT_OOPS_ALLOWED; 469 oop oopObj = jniCheck::validate_handle(thr, obj); 470 if (!oopObj) { 471 ReportJNIFatalError(thr, fatal_bad_ref_to_jni); 472 } 473 return oopObj; 474 } 475 476 // Warn if a class descriptor is in decorated form; class descriptors 477 // passed to JNI findClass should not be decorated unless they are 478 // array descriptors. 479 void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) { 480 if (name == NULL) return; // implementation accepts NULL so just return 481 482 size_t len = strlen(name); 483 484 if (len >= 2 && 485 name[0] == JVM_SIGNATURE_CLASS && // 'L' 486 name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';' 487 char msg[JVM_MAXPATHLEN]; 488 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s", 489 warn_bad_class_descriptor1, name, warn_bad_class_descriptor2); 490 ReportJNIWarning(thr, msg); 491 } 492 } 493 494 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) { 495 ASSERT_OOPS_ALLOWED; 496 oop mirror = jniCheck::validate_handle(thr, clazz); 497 if (!mirror) { 498 ReportJNIFatalError(thr, fatal_received_null_class); 499 } 500 501 if (mirror->klass() != SystemDictionary::Class_klass()) { 502 ReportJNIFatalError(thr, fatal_class_not_a_class); 503 } 504 505 Klass* k = java_lang_Class::as_Klass(mirror); 506 // Make allowances for primitive classes ... 507 if (!(k != NULL || allow_primitive && java_lang_Class::is_primitive(mirror))) { 508 ReportJNIFatalError(thr, fatal_class_not_a_class); 509 } 510 return k; 511 } 512 513 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) { 514 ASSERT_OOPS_ALLOWED; 515 assert(klass != NULL, "klass argument must have a value"); 516 517 if (!klass->is_instance_klass() || 518 !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) { 519 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class); 520 } 521 } 522 523 void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) { 524 /* validate the object being passed */ 525 ASSERT_OOPS_ALLOWED; 526 jniCheck::validate_jmethod_id(thr, method_id); 527 jniCheck::validate_object(thr, obj); 528 } 529 530 void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) { 531 /* validate the class being passed */ 532 ASSERT_OOPS_ALLOWED; 533 jniCheck::validate_jmethod_id(thr, method_id); 534 jniCheck::validate_class(thr, clazz, false); 535 } 536 537 538 /* 539 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE 540 */ 541 542 JNI_ENTRY_CHECKED(jclass, 543 checked_jni_DefineClass(JNIEnv *env, 544 const char *name, 545 jobject loader, 546 const jbyte *buf, 547 jsize len)) 548 functionEnter(thr); 549 IN_VM( 550 jniCheck::validate_object(thr, loader); 551 ) 552 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len); 553 functionExit(thr); 554 return result; 555 JNI_END 556 557 JNI_ENTRY_CHECKED(jclass, 558 checked_jni_FindClass(JNIEnv *env, 559 const char *name)) 560 functionEnter(thr); 561 IN_VM( 562 jniCheck::validate_class_descriptor(thr, name); 563 ) 564 jclass result = UNCHECKED()->FindClass(env, name); 565 functionExit(thr); 566 return result; 567 JNI_END 568 569 JNI_ENTRY_CHECKED(jmethodID, 570 checked_jni_FromReflectedMethod(JNIEnv *env, 571 jobject method)) 572 functionEnter(thr); 573 IN_VM( 574 jniCheck::validate_object(thr, method); 575 ) 576 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method); 577 functionExit(thr); 578 return result; 579 JNI_END 580 581 JNI_ENTRY_CHECKED(jfieldID, 582 checked_jni_FromReflectedField(JNIEnv *env, 583 jobject field)) 584 functionEnter(thr); 585 IN_VM( 586 jniCheck::validate_object(thr, field); 587 ) 588 jfieldID result = UNCHECKED()->FromReflectedField(env, field); 589 functionExit(thr); 590 return result; 591 JNI_END 592 593 JNI_ENTRY_CHECKED(jobject, 594 checked_jni_ToReflectedMethod(JNIEnv *env, 595 jclass cls, 596 jmethodID methodID, 597 jboolean isStatic)) 598 functionEnter(thr); 599 IN_VM( 600 jniCheck::validate_class(thr, cls, false); 601 jniCheck::validate_jmethod_id(thr, methodID); 602 ) 603 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID, 604 isStatic); 605 functionExit(thr); 606 return result; 607 JNI_END 608 609 JNI_ENTRY_CHECKED(jclass, 610 checked_jni_GetSuperclass(JNIEnv *env, 611 jclass sub)) 612 functionEnter(thr); 613 IN_VM( 614 jniCheck::validate_class(thr, sub, true); 615 ) 616 jclass result = UNCHECKED()->GetSuperclass(env, sub); 617 functionExit(thr); 618 return result; 619 JNI_END 620 621 JNI_ENTRY_CHECKED(jboolean, 622 checked_jni_IsAssignableFrom(JNIEnv *env, 623 jclass sub, 624 jclass sup)) 625 functionEnter(thr); 626 IN_VM( 627 jniCheck::validate_class(thr, sub, true); 628 jniCheck::validate_class(thr, sup, true); 629 ) 630 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup); 631 functionExit(thr); 632 return result; 633 JNI_END 634 635 JNI_ENTRY_CHECKED(jobject, 636 checked_jni_ToReflectedField(JNIEnv *env, 637 jclass cls, 638 jfieldID fieldID, 639 jboolean isStatic)) 640 functionEnter(thr); 641 IN_VM( 642 jniCheck::validate_class(thr, cls, false); 643 ) 644 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID, 645 isStatic); 646 functionExit(thr); 647 return result; 648 JNI_END 649 650 JNI_ENTRY_CHECKED(jint, 651 checked_jni_Throw(JNIEnv *env, 652 jthrowable obj)) 653 functionEnter(thr); 654 IN_VM( 655 oop oopObj = jniCheck::validate_object(thr, obj); 656 if (oopObj == NULL) { 657 // Unchecked Throw tolerates a NULL obj, so just warn 658 ReportJNIWarning(thr, "JNI Throw called with NULL throwable"); 659 } else { 660 jniCheck::validate_throwable_klass(thr, oopObj->klass()); 661 } 662 ) 663 jint result = UNCHECKED()->Throw(env, obj); 664 functionExit(thr); 665 return result; 666 JNI_END 667 668 JNI_ENTRY_CHECKED(jint, 669 checked_jni_ThrowNew(JNIEnv *env, 670 jclass clazz, 671 const char *msg)) 672 functionEnter(thr); 673 IN_VM( 674 Klass* k = jniCheck::validate_class(thr, clazz, false); 675 assert(k != NULL, "validate_class shouldn't return NULL Klass*"); 676 jniCheck::validate_throwable_klass(thr, k); 677 ) 678 jint result = UNCHECKED()->ThrowNew(env, clazz, msg); 679 functionExit(thr); 680 return result; 681 JNI_END 682 683 JNI_ENTRY_CHECKED(jthrowable, 684 checked_jni_ExceptionOccurred(JNIEnv *env)) 685 thr->clear_pending_jni_exception_check(); 686 functionEnterExceptionAllowed(thr); 687 jthrowable result = UNCHECKED()->ExceptionOccurred(env); 688 functionExit(thr); 689 return result; 690 JNI_END 691 692 JNI_ENTRY_CHECKED(void, 693 checked_jni_ExceptionDescribe(JNIEnv *env)) 694 functionEnterExceptionAllowed(thr); 695 UNCHECKED()->ExceptionDescribe(env); 696 functionExit(thr); 697 JNI_END 698 699 JNI_ENTRY_CHECKED(void, 700 checked_jni_ExceptionClear(JNIEnv *env)) 701 thr->clear_pending_jni_exception_check(); 702 functionEnterExceptionAllowed(thr); 703 UNCHECKED()->ExceptionClear(env); 704 functionExit(thr); 705 JNI_END 706 707 JNI_ENTRY_CHECKED(void, 708 checked_jni_FatalError(JNIEnv *env, 709 const char *msg)) 710 thr->clear_pending_jni_exception_check(); 711 functionEnter(thr); 712 UNCHECKED()->FatalError(env, msg); 713 functionExit(thr); 714 JNI_END 715 716 JNI_ENTRY_CHECKED(jint, 717 checked_jni_PushLocalFrame(JNIEnv *env, 718 jint capacity)) 719 functionEnterExceptionAllowed(thr); 720 if (capacity < 0) 721 NativeReportJNIFatalError(thr, "negative capacity"); 722 jint result = UNCHECKED()->PushLocalFrame(env, capacity); 723 if (result == JNI_OK) { 724 add_planned_handle_capacity(thr->active_handles(), capacity); 725 } 726 functionExit(thr); 727 return result; 728 JNI_END 729 730 JNI_ENTRY_CHECKED(jobject, 731 checked_jni_PopLocalFrame(JNIEnv *env, 732 jobject result)) 733 functionEnterExceptionAllowed(thr); 734 jobject res = UNCHECKED()->PopLocalFrame(env, result); 735 functionExit(thr); 736 return res; 737 JNI_END 738 739 JNI_ENTRY_CHECKED(jobject, 740 checked_jni_NewGlobalRef(JNIEnv *env, 741 jobject lobj)) 742 functionEnter(thr); 743 IN_VM( 744 if (lobj != NULL) { 745 jniCheck::validate_handle(thr, lobj); 746 } 747 ) 748 jobject result = UNCHECKED()->NewGlobalRef(env,lobj); 749 functionExit(thr); 750 return result; 751 JNI_END 752 753 JNI_ENTRY_CHECKED(void, 754 checked_jni_DeleteGlobalRef(JNIEnv *env, 755 jobject gref)) 756 functionEnterExceptionAllowed(thr); 757 IN_VM( 758 jniCheck::validate_object(thr, gref); 759 if (gref && !JNIHandles::is_global_handle(gref)) { 760 ReportJNIFatalError(thr, 761 "Invalid global JNI handle passed to DeleteGlobalRef"); 762 } 763 ) 764 UNCHECKED()->DeleteGlobalRef(env,gref); 765 functionExit(thr); 766 JNI_END 767 768 JNI_ENTRY_CHECKED(void, 769 checked_jni_DeleteLocalRef(JNIEnv *env, 770 jobject obj)) 771 functionEnterExceptionAllowed(thr); 772 IN_VM( 773 jniCheck::validate_object(thr, obj); 774 if (obj && !(JNIHandles::is_local_handle(thr, obj) || 775 JNIHandles::is_frame_handle(thr, obj))) 776 ReportJNIFatalError(thr, 777 "Invalid local JNI handle passed to DeleteLocalRef"); 778 ) 779 UNCHECKED()->DeleteLocalRef(env, obj); 780 functionExit(thr); 781 JNI_END 782 783 JNI_ENTRY_CHECKED(jboolean, 784 checked_jni_IsSameObject(JNIEnv *env, 785 jobject obj1, 786 jobject obj2)) 787 functionEnterExceptionAllowed(thr); 788 IN_VM( 789 /* This JNI function can be used to compare weak global references 790 * to NULL objects. If the handles are valid, but contain NULL, 791 * then don't attempt to validate the object. 792 */ 793 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) { 794 jniCheck::validate_object(thr, obj1); 795 } 796 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) { 797 jniCheck::validate_object(thr, obj2); 798 } 799 ) 800 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2); 801 functionExit(thr); 802 return result; 803 JNI_END 804 805 JNI_ENTRY_CHECKED(jobject, 806 checked_jni_NewLocalRef(JNIEnv *env, 807 jobject ref)) 808 functionEnter(thr); 809 IN_VM( 810 if (ref != NULL) { 811 jniCheck::validate_handle(thr, ref); 812 } 813 ) 814 jobject result = UNCHECKED()->NewLocalRef(env, ref); 815 functionExit(thr); 816 return result; 817 JNI_END 818 819 JNI_ENTRY_CHECKED(jint, 820 checked_jni_EnsureLocalCapacity(JNIEnv *env, 821 jint capacity)) 822 functionEnter(thr); 823 if (capacity < 0) { 824 NativeReportJNIFatalError(thr, "negative capacity"); 825 } 826 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity); 827 if (result == JNI_OK) { 828 add_planned_handle_capacity(thr->active_handles(), capacity); 829 } 830 functionExit(thr); 831 return result; 832 JNI_END 833 834 JNI_ENTRY_CHECKED(jobject, 835 checked_jni_AllocObject(JNIEnv *env, 836 jclass clazz)) 837 functionEnter(thr); 838 IN_VM( 839 jniCheck::validate_class(thr, clazz, false); 840 ) 841 jobject result = UNCHECKED()->AllocObject(env,clazz); 842 functionExit(thr); 843 return result; 844 JNI_END 845 846 JNI_ENTRY_CHECKED(jobject, 847 checked_jni_NewObject(JNIEnv *env, 848 jclass clazz, 849 jmethodID methodID, 850 ...)) 851 functionEnter(thr); 852 va_list args; 853 IN_VM( 854 jniCheck::validate_class(thr, clazz, false); 855 jniCheck::validate_jmethod_id(thr, methodID); 856 ) 857 va_start(args, methodID); 858 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args); 859 va_end(args); 860 functionExit(thr); 861 return result; 862 JNI_END 863 864 JNI_ENTRY_CHECKED(jobject, 865 checked_jni_NewObjectV(JNIEnv *env, 866 jclass clazz, 867 jmethodID methodID, 868 va_list args)) 869 functionEnter(thr); 870 IN_VM( 871 jniCheck::validate_class(thr, clazz, false); 872 jniCheck::validate_jmethod_id(thr, methodID); 873 ) 874 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args); 875 functionExit(thr); 876 return result; 877 JNI_END 878 879 JNI_ENTRY_CHECKED(jobject, 880 checked_jni_NewObjectA(JNIEnv *env, 881 jclass clazz, 882 jmethodID methodID, 883 const jvalue *args)) 884 functionEnter(thr); 885 IN_VM( 886 jniCheck::validate_class(thr, clazz, false); 887 jniCheck::validate_jmethod_id(thr, methodID); 888 ) 889 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args); 890 functionExit(thr); 891 return result; 892 JNI_END 893 894 JNI_ENTRY_CHECKED(jclass, 895 checked_jni_GetObjectClass(JNIEnv *env, 896 jobject obj)) 897 functionEnter(thr); 898 IN_VM( 899 jniCheck::validate_object(thr, obj); 900 ) 901 jclass result = UNCHECKED()->GetObjectClass(env,obj); 902 functionExit(thr); 903 return result; 904 JNI_END 905 906 JNI_ENTRY_CHECKED(jboolean, 907 checked_jni_IsInstanceOf(JNIEnv *env, 908 jobject obj, 909 jclass clazz)) 910 functionEnter(thr); 911 IN_VM( 912 jniCheck::validate_object(thr, obj); 913 jniCheck::validate_class(thr, clazz, true); 914 ) 915 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz); 916 functionExit(thr); 917 return result; 918 JNI_END 919 920 JNI_ENTRY_CHECKED(jmethodID, 921 checked_jni_GetMethodID(JNIEnv *env, 922 jclass clazz, 923 const char *name, 924 const char *sig)) 925 functionEnter(thr); 926 IN_VM( 927 jniCheck::validate_class(thr, clazz, false); 928 ) 929 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig); 930 functionExit(thr); 931 return result; 932 JNI_END 933 934 #define WRAPPER_CallMethod(ResultType, Result) \ 935 JNI_ENTRY_CHECKED(ResultType, \ 936 checked_jni_Call##Result##Method(JNIEnv *env, \ 937 jobject obj, \ 938 jmethodID methodID, \ 939 ...)) \ 940 functionEnter(thr); \ 941 va_list args; \ 942 IN_VM( \ 943 jniCheck::validate_call_object(thr, obj, methodID); \ 944 ) \ 945 va_start(args,methodID); \ 946 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \ 947 args); \ 948 va_end(args); \ 949 thr->set_pending_jni_exception_check("Call"#Result"Method"); \ 950 functionExit(thr); \ 951 return result; \ 952 JNI_END \ 953 \ 954 JNI_ENTRY_CHECKED(ResultType, \ 955 checked_jni_Call##Result##MethodV(JNIEnv *env, \ 956 jobject obj, \ 957 jmethodID methodID, \ 958 va_list args)) \ 959 functionEnter(thr); \ 960 IN_VM(\ 961 jniCheck::validate_call_object(thr, obj, methodID); \ 962 ) \ 963 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\ 964 args); \ 965 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \ 966 functionExit(thr); \ 967 return result; \ 968 JNI_END \ 969 \ 970 JNI_ENTRY_CHECKED(ResultType, \ 971 checked_jni_Call##Result##MethodA(JNIEnv *env, \ 972 jobject obj, \ 973 jmethodID methodID, \ 974 const jvalue * args)) \ 975 functionEnter(thr); \ 976 IN_VM( \ 977 jniCheck::validate_call_object(thr, obj, methodID); \ 978 ) \ 979 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\ 980 args); \ 981 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \ 982 functionExit(thr); \ 983 return result; \ 984 JNI_END 985 986 WRAPPER_CallMethod(jobject,Object) 987 WRAPPER_CallMethod(jboolean,Boolean) 988 WRAPPER_CallMethod(jbyte,Byte) 989 WRAPPER_CallMethod(jshort,Short) 990 WRAPPER_CallMethod(jchar,Char) 991 WRAPPER_CallMethod(jint,Int) 992 WRAPPER_CallMethod(jlong,Long) 993 WRAPPER_CallMethod(jfloat,Float) 994 WRAPPER_CallMethod(jdouble,Double) 995 996 JNI_ENTRY_CHECKED(void, 997 checked_jni_CallVoidMethod(JNIEnv *env, \ 998 jobject obj, \ 999 jmethodID methodID, \ 1000 ...)) 1001 functionEnter(thr); 1002 va_list args; 1003 IN_VM( 1004 jniCheck::validate_call_object(thr, obj, methodID); 1005 ) 1006 va_start(args,methodID); 1007 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args); 1008 va_end(args); 1009 thr->set_pending_jni_exception_check("CallVoidMethod"); 1010 functionExit(thr); 1011 JNI_END 1012 1013 JNI_ENTRY_CHECKED(void, 1014 checked_jni_CallVoidMethodV(JNIEnv *env, 1015 jobject obj, 1016 jmethodID methodID, 1017 va_list args)) 1018 functionEnter(thr); 1019 IN_VM( 1020 jniCheck::validate_call_object(thr, obj, methodID); 1021 ) 1022 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args); 1023 thr->set_pending_jni_exception_check("CallVoidMethodV"); 1024 functionExit(thr); 1025 JNI_END 1026 1027 JNI_ENTRY_CHECKED(void, 1028 checked_jni_CallVoidMethodA(JNIEnv *env, 1029 jobject obj, 1030 jmethodID methodID, 1031 const jvalue * args)) 1032 functionEnter(thr); 1033 IN_VM( 1034 jniCheck::validate_call_object(thr, obj, methodID); 1035 ) 1036 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args); 1037 thr->set_pending_jni_exception_check("CallVoidMethodA"); 1038 functionExit(thr); 1039 JNI_END 1040 1041 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \ 1042 JNI_ENTRY_CHECKED(ResultType, \ 1043 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \ 1044 jobject obj, \ 1045 jclass clazz, \ 1046 jmethodID methodID, \ 1047 ...)) \ 1048 functionEnter(thr); \ 1049 va_list args; \ 1050 IN_VM( \ 1051 jniCheck::validate_call_object(thr, obj, methodID); \ 1052 jniCheck::validate_call_class(thr, clazz, methodID); \ 1053 ) \ 1054 va_start(args,methodID); \ 1055 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \ 1056 obj, \ 1057 clazz, \ 1058 methodID,\ 1059 args); \ 1060 va_end(args); \ 1061 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \ 1062 functionExit(thr); \ 1063 return result; \ 1064 JNI_END \ 1065 \ 1066 JNI_ENTRY_CHECKED(ResultType, \ 1067 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \ 1068 jobject obj, \ 1069 jclass clazz, \ 1070 jmethodID methodID, \ 1071 va_list args)) \ 1072 functionEnter(thr); \ 1073 IN_VM( \ 1074 jniCheck::validate_call_object(thr, obj, methodID); \ 1075 jniCheck::validate_call_class(thr, clazz, methodID); \ 1076 ) \ 1077 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \ 1078 obj, \ 1079 clazz, \ 1080 methodID,\ 1081 args); \ 1082 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \ 1083 functionExit(thr); \ 1084 return result; \ 1085 JNI_END \ 1086 \ 1087 JNI_ENTRY_CHECKED(ResultType, \ 1088 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \ 1089 jobject obj, \ 1090 jclass clazz, \ 1091 jmethodID methodID, \ 1092 const jvalue * args)) \ 1093 functionEnter(thr); \ 1094 IN_VM( \ 1095 jniCheck::validate_call_object(thr, obj, methodID); \ 1096 jniCheck::validate_call_class(thr, clazz, methodID); \ 1097 ) \ 1098 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \ 1099 obj, \ 1100 clazz, \ 1101 methodID,\ 1102 args); \ 1103 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \ 1104 functionExit(thr); \ 1105 return result; \ 1106 JNI_END 1107 1108 WRAPPER_CallNonvirtualMethod(jobject,Object) 1109 WRAPPER_CallNonvirtualMethod(jboolean,Boolean) 1110 WRAPPER_CallNonvirtualMethod(jbyte,Byte) 1111 WRAPPER_CallNonvirtualMethod(jshort,Short) 1112 WRAPPER_CallNonvirtualMethod(jchar,Char) 1113 WRAPPER_CallNonvirtualMethod(jint,Int) 1114 WRAPPER_CallNonvirtualMethod(jlong,Long) 1115 WRAPPER_CallNonvirtualMethod(jfloat,Float) 1116 WRAPPER_CallNonvirtualMethod(jdouble,Double) 1117 1118 JNI_ENTRY_CHECKED(void, 1119 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env, 1120 jobject obj, 1121 jclass clazz, 1122 jmethodID methodID, 1123 ...)) 1124 functionEnter(thr); 1125 va_list args; 1126 IN_VM( 1127 jniCheck::validate_call_object(thr, obj, methodID); 1128 jniCheck::validate_call_class(thr, clazz, methodID); 1129 ) 1130 va_start(args,methodID); 1131 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args); 1132 va_end(args); 1133 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod"); 1134 functionExit(thr); 1135 JNI_END 1136 1137 JNI_ENTRY_CHECKED(void, 1138 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env, 1139 jobject obj, 1140 jclass clazz, 1141 jmethodID methodID, 1142 va_list args)) 1143 functionEnter(thr); 1144 IN_VM( 1145 jniCheck::validate_call_object(thr, obj, methodID); 1146 jniCheck::validate_call_class(thr, clazz, methodID); 1147 ) 1148 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args); 1149 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV"); 1150 functionExit(thr); 1151 JNI_END 1152 1153 JNI_ENTRY_CHECKED(void, 1154 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env, 1155 jobject obj, 1156 jclass clazz, 1157 jmethodID methodID, 1158 const jvalue * 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()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args); 1165 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA"); 1166 functionExit(thr); 1167 JNI_END 1168 1169 JNI_ENTRY_CHECKED(jfieldID, 1170 checked_jni_GetFieldID(JNIEnv *env, 1171 jclass clazz, 1172 const char *name, 1173 const char *sig)) 1174 functionEnter(thr); 1175 IN_VM( 1176 jniCheck::validate_class(thr, clazz, false); 1177 ) 1178 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig); 1179 functionExit(thr); 1180 return result; 1181 JNI_END 1182 1183 #define WRAPPER_GetField(ReturnType,Result,FieldType) \ 1184 JNI_ENTRY_CHECKED(ReturnType, \ 1185 checked_jni_Get##Result##Field(JNIEnv *env, \ 1186 jobject obj, \ 1187 jfieldID fieldID)) \ 1188 functionEnter(thr); \ 1189 IN_VM( \ 1190 checkInstanceFieldID(thr, fieldID, obj, FieldType); \ 1191 ) \ 1192 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \ 1193 functionExit(thr); \ 1194 return result; \ 1195 JNI_END 1196 1197 WRAPPER_GetField(jobject, Object, T_OBJECT) 1198 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN) 1199 WRAPPER_GetField(jbyte, Byte, T_BYTE) 1200 WRAPPER_GetField(jshort, Short, T_SHORT) 1201 WRAPPER_GetField(jchar, Char, T_CHAR) 1202 WRAPPER_GetField(jint, Int, T_INT) 1203 WRAPPER_GetField(jlong, Long, T_LONG) 1204 WRAPPER_GetField(jfloat, Float, T_FLOAT) 1205 WRAPPER_GetField(jdouble, Double, T_DOUBLE) 1206 1207 #define WRAPPER_SetField(ValueType,Result,FieldType) \ 1208 JNI_ENTRY_CHECKED(void, \ 1209 checked_jni_Set##Result##Field(JNIEnv *env, \ 1210 jobject obj, \ 1211 jfieldID fieldID, \ 1212 ValueType val)) \ 1213 functionEnter(thr); \ 1214 IN_VM( \ 1215 checkInstanceFieldID(thr, fieldID, obj, FieldType); \ 1216 ) \ 1217 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \ 1218 functionExit(thr); \ 1219 JNI_END 1220 1221 WRAPPER_SetField(jobject, Object, T_OBJECT) 1222 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN) 1223 WRAPPER_SetField(jbyte, Byte, T_BYTE) 1224 WRAPPER_SetField(jshort, Short, T_SHORT) 1225 WRAPPER_SetField(jchar, Char, T_CHAR) 1226 WRAPPER_SetField(jint, Int, T_INT) 1227 WRAPPER_SetField(jlong, Long, T_LONG) 1228 WRAPPER_SetField(jfloat, Float, T_FLOAT) 1229 WRAPPER_SetField(jdouble, Double, T_DOUBLE) 1230 1231 1232 JNI_ENTRY_CHECKED(jmethodID, 1233 checked_jni_GetStaticMethodID(JNIEnv *env, 1234 jclass clazz, 1235 const char *name, 1236 const char *sig)) 1237 functionEnter(thr); 1238 IN_VM( 1239 jniCheck::validate_class(thr, clazz, false); 1240 ) 1241 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig); 1242 functionExit(thr); 1243 return result; 1244 JNI_END 1245 1246 #define WRAPPER_CallStaticMethod(ReturnType,Result) \ 1247 JNI_ENTRY_CHECKED(ReturnType, \ 1248 checked_jni_CallStatic##Result##Method(JNIEnv *env, \ 1249 jclass clazz, \ 1250 jmethodID methodID, \ 1251 ...)) \ 1252 functionEnter(thr); \ 1253 va_list args; \ 1254 IN_VM( \ 1255 jniCheck::validate_jmethod_id(thr, methodID); \ 1256 jniCheck::validate_class(thr, clazz, false); \ 1257 ) \ 1258 va_start(args,methodID); \ 1259 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \ 1260 clazz, \ 1261 methodID, \ 1262 args); \ 1263 va_end(args); \ 1264 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \ 1265 functionExit(thr); \ 1266 return result; \ 1267 JNI_END \ 1268 \ 1269 JNI_ENTRY_CHECKED(ReturnType, \ 1270 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \ 1271 jclass clazz, \ 1272 jmethodID methodID,\ 1273 va_list args)) \ 1274 functionEnter(thr); \ 1275 IN_VM( \ 1276 jniCheck::validate_jmethod_id(thr, methodID); \ 1277 jniCheck::validate_class(thr, clazz, false); \ 1278 ) \ 1279 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \ 1280 clazz, \ 1281 methodID, \ 1282 args); \ 1283 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \ 1284 functionExit(thr); \ 1285 return result; \ 1286 JNI_END \ 1287 \ 1288 JNI_ENTRY_CHECKED(ReturnType, \ 1289 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \ 1290 jclass clazz, \ 1291 jmethodID methodID, \ 1292 const jvalue *args)) \ 1293 functionEnter(thr); \ 1294 IN_VM( \ 1295 jniCheck::validate_jmethod_id(thr, methodID); \ 1296 jniCheck::validate_class(thr, clazz, false); \ 1297 ) \ 1298 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \ 1299 clazz, \ 1300 methodID, \ 1301 args); \ 1302 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \ 1303 functionExit(thr); \ 1304 return result; \ 1305 JNI_END 1306 1307 WRAPPER_CallStaticMethod(jobject,Object) 1308 WRAPPER_CallStaticMethod(jboolean,Boolean) 1309 WRAPPER_CallStaticMethod(jbyte,Byte) 1310 WRAPPER_CallStaticMethod(jshort,Short) 1311 WRAPPER_CallStaticMethod(jchar,Char) 1312 WRAPPER_CallStaticMethod(jint,Int) 1313 WRAPPER_CallStaticMethod(jlong,Long) 1314 WRAPPER_CallStaticMethod(jfloat,Float) 1315 WRAPPER_CallStaticMethod(jdouble,Double) 1316 1317 JNI_ENTRY_CHECKED(void, 1318 checked_jni_CallStaticVoidMethod(JNIEnv *env, 1319 jclass cls, 1320 jmethodID methodID, 1321 ...)) 1322 functionEnter(thr); 1323 va_list args; 1324 IN_VM( 1325 jniCheck::validate_jmethod_id(thr, methodID); 1326 jniCheck::validate_class(thr, cls, false); 1327 ) 1328 va_start(args,methodID); 1329 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args); 1330 va_end(args); 1331 thr->set_pending_jni_exception_check("CallStaticVoidMethod"); 1332 functionExit(thr); 1333 JNI_END 1334 1335 JNI_ENTRY_CHECKED(void, 1336 checked_jni_CallStaticVoidMethodV(JNIEnv *env, 1337 jclass cls, 1338 jmethodID methodID, 1339 va_list args)) 1340 functionEnter(thr); 1341 IN_VM( 1342 jniCheck::validate_jmethod_id(thr, methodID); 1343 jniCheck::validate_class(thr, cls, false); 1344 ) 1345 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args); 1346 thr->set_pending_jni_exception_check("CallStaticVoidMethodV"); 1347 functionExit(thr); 1348 JNI_END 1349 1350 JNI_ENTRY_CHECKED(void, 1351 checked_jni_CallStaticVoidMethodA(JNIEnv *env, 1352 jclass cls, 1353 jmethodID methodID, 1354 const jvalue * args)) 1355 functionEnter(thr); 1356 IN_VM( 1357 jniCheck::validate_jmethod_id(thr, methodID); 1358 jniCheck::validate_class(thr, cls, false); 1359 ) 1360 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args); 1361 thr->set_pending_jni_exception_check("CallStaticVoidMethodA"); 1362 functionExit(thr); 1363 JNI_END 1364 1365 JNI_ENTRY_CHECKED(jfieldID, 1366 checked_jni_GetStaticFieldID(JNIEnv *env, 1367 jclass clazz, 1368 const char *name, 1369 const char *sig)) 1370 functionEnter(thr); 1371 IN_VM( 1372 jniCheck::validate_class(thr, clazz, false); 1373 ) 1374 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig); 1375 functionExit(thr); 1376 return result; 1377 JNI_END 1378 1379 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \ 1380 JNI_ENTRY_CHECKED(ReturnType, \ 1381 checked_jni_GetStatic##Result##Field(JNIEnv *env, \ 1382 jclass clazz, \ 1383 jfieldID fieldID)) \ 1384 functionEnter(thr); \ 1385 IN_VM( \ 1386 jniCheck::validate_class(thr, clazz, false); \ 1387 checkStaticFieldID(thr, fieldID, clazz, FieldType); \ 1388 ) \ 1389 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \ 1390 clazz, \ 1391 fieldID); \ 1392 functionExit(thr); \ 1393 return result; \ 1394 JNI_END 1395 1396 WRAPPER_GetStaticField(jobject, Object, T_OBJECT) 1397 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN) 1398 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE) 1399 WRAPPER_GetStaticField(jshort, Short, T_SHORT) 1400 WRAPPER_GetStaticField(jchar, Char, T_CHAR) 1401 WRAPPER_GetStaticField(jint, Int, T_INT) 1402 WRAPPER_GetStaticField(jlong, Long, T_LONG) 1403 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT) 1404 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE) 1405 1406 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \ 1407 JNI_ENTRY_CHECKED(void, \ 1408 checked_jni_SetStatic##Result##Field(JNIEnv *env, \ 1409 jclass clazz, \ 1410 jfieldID fieldID, \ 1411 ValueType value)) \ 1412 functionEnter(thr); \ 1413 IN_VM( \ 1414 jniCheck::validate_class(thr, clazz, false); \ 1415 checkStaticFieldID(thr, fieldID, clazz, FieldType); \ 1416 ) \ 1417 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \ 1418 functionExit(thr); \ 1419 JNI_END 1420 1421 WRAPPER_SetStaticField(jobject, Object, T_OBJECT) 1422 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN) 1423 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE) 1424 WRAPPER_SetStaticField(jshort, Short, T_SHORT) 1425 WRAPPER_SetStaticField(jchar, Char, T_CHAR) 1426 WRAPPER_SetStaticField(jint, Int, T_INT) 1427 WRAPPER_SetStaticField(jlong, Long, T_LONG) 1428 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT) 1429 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE) 1430 1431 1432 JNI_ENTRY_CHECKED(jstring, 1433 checked_jni_NewString(JNIEnv *env, 1434 const jchar *unicode, 1435 jsize len)) 1436 functionEnter(thr); 1437 jstring result = UNCHECKED()->NewString(env,unicode,len); 1438 functionExit(thr); 1439 return result; 1440 JNI_END 1441 1442 JNI_ENTRY_CHECKED(jsize, 1443 checked_jni_GetStringLength(JNIEnv *env, 1444 jstring str)) 1445 functionEnter(thr); 1446 IN_VM( 1447 checkString(thr, str); 1448 ) 1449 jsize result = UNCHECKED()->GetStringLength(env,str); 1450 functionExit(thr); 1451 return result; 1452 JNI_END 1453 1454 // Arbitrary (but well-known) tag 1455 const void* STRING_TAG = (void*)0x47114711; 1456 1457 JNI_ENTRY_CHECKED(const jchar *, 1458 checked_jni_GetStringChars(JNIEnv *env, 1459 jstring str, 1460 jboolean *isCopy)) 1461 functionEnter(thr); 1462 IN_VM( 1463 checkString(thr, str); 1464 ) 1465 jchar* new_result = NULL; 1466 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy); 1467 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected"); 1468 if (result != NULL) { 1469 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination 1470 len *= sizeof(jchar); 1471 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG); 1472 if (new_result == NULL) { 1473 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars"); 1474 } 1475 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes 1476 // Note that the dtrace arguments for the allocated memory will not match up with this solution. 1477 FreeHeap((char*)result); 1478 } 1479 functionExit(thr); 1480 return new_result; 1481 JNI_END 1482 1483 JNI_ENTRY_CHECKED(void, 1484 checked_jni_ReleaseStringChars(JNIEnv *env, 1485 jstring str, 1486 const jchar *chars)) 1487 functionEnterExceptionAllowed(thr); 1488 IN_VM( 1489 checkString(thr, str); 1490 ) 1491 if (chars == NULL) { 1492 // still do the unchecked call to allow dtrace probes 1493 UNCHECKED()->ReleaseStringChars(env,str,chars); 1494 } 1495 else { 1496 GuardedMemory guarded((void*)chars); 1497 if (!guarded.verify_guards()) { 1498 tty->print_cr("ReleaseStringChars: release chars failed bounds check. " 1499 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars)); 1500 guarded.print_on(tty); 1501 NativeReportJNIFatalError(thr, "ReleaseStringChars: " 1502 "release chars failed bounds check."); 1503 } 1504 if (guarded.get_tag() != STRING_TAG) { 1505 tty->print_cr("ReleaseStringChars: called on something not allocated " 1506 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT, 1507 p2i(str), p2i(chars)); 1508 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something " 1509 "not allocated by GetStringChars"); 1510 } 1511 UNCHECKED()->ReleaseStringChars(env, str, 1512 (const jchar*) guarded.release_for_freeing()); 1513 } 1514 functionExit(thr); 1515 JNI_END 1516 1517 JNI_ENTRY_CHECKED(const jbyte*, 1518 checked_jni_GetStringBytesCritical(JNIEnv *env, 1519 jstring string, 1520 jint* len, 1521 jbyte *encoding, 1522 jboolean *isCopy)) 1523 functionEnterCritical(thr); 1524 IN_VM( 1525 checkString(thr, string); 1526 ) 1527 const jbyte *result = UNCHECKED()->GetStringBytesCritical(env, string, len, encoding, isCopy); 1528 functionExit(thr); 1529 return result; 1530 JNI_END 1531 1532 JNI_ENTRY_CHECKED(void, 1533 checked_jni_ReleaseStringBytesCritical(JNIEnv *env, 1534 jstring str, 1535 const jbyte *bytes)) 1536 functionEnterCriticalExceptionAllowed(thr); 1537 IN_VM( 1538 checkString(thr, str); 1539 ) 1540 /* The Hotspot JNI code does not use the parameters, so just check the 1541 * string parameter as a minor sanity check 1542 */ 1543 UNCHECKED()->ReleaseStringBytesCritical(env, str, bytes); 1544 functionExit(thr); 1545 JNI_END 1546 1547 JNI_ENTRY_CHECKED(jstring, 1548 checked_jni_NewStringUTF(JNIEnv *env, 1549 const char *utf)) 1550 functionEnter(thr); 1551 jstring result = UNCHECKED()->NewStringUTF(env,utf); 1552 functionExit(thr); 1553 return result; 1554 JNI_END 1555 1556 JNI_ENTRY_CHECKED(jsize, 1557 checked_jni_GetStringUTFLength(JNIEnv *env, 1558 jstring str)) 1559 functionEnter(thr); 1560 IN_VM( 1561 checkString(thr, str); 1562 ) 1563 jsize result = UNCHECKED()->GetStringUTFLength(env,str); 1564 functionExit(thr); 1565 return result; 1566 JNI_END 1567 1568 // Arbitrary (but well-known) tag - different than GetStringChars 1569 const void* STRING_UTF_TAG = (void*) 0x48124812; 1570 1571 JNI_ENTRY_CHECKED(const char *, 1572 checked_jni_GetStringUTFChars(JNIEnv *env, 1573 jstring str, 1574 jboolean *isCopy)) 1575 functionEnter(thr); 1576 IN_VM( 1577 checkString(thr, str); 1578 ) 1579 char* new_result = NULL; 1580 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy); 1581 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected"); 1582 if (result != NULL) { 1583 size_t len = strlen(result) + 1; // + 1 for NULL termination 1584 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG); 1585 if (new_result == NULL) { 1586 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars"); 1587 } 1588 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes 1589 // Note that the dtrace arguments for the allocated memory will not match up with this solution. 1590 FreeHeap((char*)result); 1591 } 1592 functionExit(thr); 1593 return new_result; 1594 JNI_END 1595 1596 JNI_ENTRY_CHECKED(void, 1597 checked_jni_ReleaseStringUTFChars(JNIEnv *env, 1598 jstring str, 1599 const char* chars)) 1600 functionEnterExceptionAllowed(thr); 1601 IN_VM( 1602 checkString(thr, str); 1603 ) 1604 if (chars == NULL) { 1605 // still do the unchecked call to allow dtrace probes 1606 UNCHECKED()->ReleaseStringUTFChars(env,str,chars); 1607 } 1608 else { 1609 GuardedMemory guarded((void*)chars); 1610 if (!guarded.verify_guards()) { 1611 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. " 1612 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars)); 1613 guarded.print_on(tty); 1614 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: " 1615 "release chars failed bounds check."); 1616 } 1617 if (guarded.get_tag() != STRING_UTF_TAG) { 1618 tty->print_cr("ReleaseStringUTFChars: called on something not " 1619 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: " 1620 PTR_FORMAT, p2i(str), p2i(chars)); 1621 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars " 1622 "called on something not allocated by GetStringUTFChars"); 1623 } 1624 UNCHECKED()->ReleaseStringUTFChars(env, str, 1625 (const char*) guarded.release_for_freeing()); 1626 } 1627 functionExit(thr); 1628 JNI_END 1629 1630 JNI_ENTRY_CHECKED(jsize, 1631 checked_jni_GetArrayLength(JNIEnv *env, 1632 jarray array)) 1633 functionEnter(thr); 1634 IN_VM( 1635 check_is_array(thr, array); 1636 ) 1637 jsize result = UNCHECKED()->GetArrayLength(env,array); 1638 functionExit(thr); 1639 return result; 1640 JNI_END 1641 1642 JNI_ENTRY_CHECKED(jobjectArray, 1643 checked_jni_NewObjectArray(JNIEnv *env, 1644 jsize len, 1645 jclass clazz, 1646 jobject init)) 1647 functionEnter(thr); 1648 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init); 1649 functionExit(thr); 1650 return result; 1651 JNI_END 1652 1653 JNI_ENTRY_CHECKED(jobject, 1654 checked_jni_GetObjectArrayElement(JNIEnv *env, 1655 jobjectArray array, 1656 jsize index)) 1657 functionEnter(thr); 1658 IN_VM( 1659 check_is_obj_array(thr, array); 1660 ) 1661 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index); 1662 functionExit(thr); 1663 return result; 1664 JNI_END 1665 1666 JNI_ENTRY_CHECKED(void, 1667 checked_jni_SetObjectArrayElement(JNIEnv *env, 1668 jobjectArray array, 1669 jsize index, 1670 jobject val)) 1671 functionEnter(thr); 1672 IN_VM( 1673 check_is_obj_array(thr, array); 1674 ) 1675 UNCHECKED()->SetObjectArrayElement(env,array,index,val); 1676 functionExit(thr); 1677 JNI_END 1678 1679 #define WRAPPER_NewScalarArray(Return, Result) \ 1680 JNI_ENTRY_CHECKED(Return, \ 1681 checked_jni_New##Result##Array(JNIEnv *env, \ 1682 jsize len)) \ 1683 functionEnter(thr); \ 1684 Return result = UNCHECKED()->New##Result##Array(env,len); \ 1685 functionExit(thr); \ 1686 return (Return) result; \ 1687 JNI_END 1688 1689 WRAPPER_NewScalarArray(jbooleanArray, Boolean) 1690 WRAPPER_NewScalarArray(jbyteArray, Byte) 1691 WRAPPER_NewScalarArray(jshortArray, Short) 1692 WRAPPER_NewScalarArray(jcharArray, Char) 1693 WRAPPER_NewScalarArray(jintArray, Int) 1694 WRAPPER_NewScalarArray(jlongArray, Long) 1695 WRAPPER_NewScalarArray(jfloatArray, Float) 1696 WRAPPER_NewScalarArray(jdoubleArray, Double) 1697 1698 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \ 1699 JNI_ENTRY_CHECKED(ElementType *, \ 1700 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \ 1701 ElementType##Array array, \ 1702 jboolean *isCopy)) \ 1703 functionEnter(thr); \ 1704 IN_VM( \ 1705 check_primitive_array_type(thr, array, ElementTag); \ 1706 ) \ 1707 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \ 1708 array, \ 1709 isCopy); \ 1710 if (result != NULL) { \ 1711 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \ 1712 } \ 1713 functionExit(thr); \ 1714 return result; \ 1715 JNI_END 1716 1717 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean) 1718 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte) 1719 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short) 1720 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char) 1721 WRAPPER_GetScalarArrayElements(T_INT, jint, Int) 1722 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long) 1723 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float) 1724 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double) 1725 1726 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \ 1727 JNI_ENTRY_CHECKED(void, \ 1728 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \ 1729 ElementType##Array array, \ 1730 ElementType *elems, \ 1731 jint mode)) \ 1732 functionEnterExceptionAllowed(thr); \ 1733 IN_VM( \ 1734 check_primitive_array_type(thr, array, ElementTag); \ 1735 ASSERT_OOPS_ALLOWED; \ 1736 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 1737 ) \ 1738 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \ 1739 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \ 1740 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \ 1741 functionExit(thr); \ 1742 JNI_END 1743 1744 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool) 1745 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte) 1746 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short) 1747 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char) 1748 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int) 1749 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long) 1750 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float) 1751 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double) 1752 1753 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \ 1754 JNI_ENTRY_CHECKED(void, \ 1755 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \ 1756 ElementType##Array array, \ 1757 jsize start, \ 1758 jsize len, \ 1759 ElementType *buf)) \ 1760 functionEnter(thr); \ 1761 IN_VM( \ 1762 check_primitive_array_type(thr, array, ElementTag); \ 1763 ) \ 1764 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \ 1765 functionExit(thr); \ 1766 JNI_END 1767 1768 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean) 1769 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte) 1770 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short) 1771 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char) 1772 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int) 1773 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long) 1774 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float) 1775 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double) 1776 1777 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \ 1778 JNI_ENTRY_CHECKED(void, \ 1779 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \ 1780 ElementType##Array array, \ 1781 jsize start, \ 1782 jsize len, \ 1783 const ElementType *buf)) \ 1784 functionEnter(thr); \ 1785 IN_VM( \ 1786 check_primitive_array_type(thr, array, ElementTag); \ 1787 ) \ 1788 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \ 1789 functionExit(thr); \ 1790 JNI_END 1791 1792 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean) 1793 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte) 1794 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short) 1795 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char) 1796 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int) 1797 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long) 1798 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float) 1799 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double) 1800 1801 JNI_ENTRY_CHECKED(jint, 1802 checked_jni_RegisterNatives(JNIEnv *env, 1803 jclass clazz, 1804 const JNINativeMethod *methods, 1805 jint nMethods)) 1806 functionEnter(thr); 1807 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods); 1808 functionExit(thr); 1809 return result; 1810 JNI_END 1811 1812 JNI_ENTRY_CHECKED(jint, 1813 checked_jni_UnregisterNatives(JNIEnv *env, 1814 jclass clazz)) 1815 functionEnter(thr); 1816 jint result = UNCHECKED()->UnregisterNatives(env,clazz); 1817 functionExit(thr); 1818 return result; 1819 JNI_END 1820 1821 JNI_ENTRY_CHECKED(jint, 1822 checked_jni_MonitorEnter(JNIEnv *env, 1823 jobject obj)) 1824 functionEnter(thr); 1825 IN_VM( 1826 jniCheck::validate_object(thr, obj); 1827 ) 1828 jint result = UNCHECKED()->MonitorEnter(env,obj); 1829 functionExit(thr); 1830 return result; 1831 JNI_END 1832 1833 JNI_ENTRY_CHECKED(jint, 1834 checked_jni_MonitorExit(JNIEnv *env, 1835 jobject obj)) 1836 functionEnterExceptionAllowed(thr); 1837 IN_VM( 1838 jniCheck::validate_object(thr, obj); 1839 ) 1840 jint result = UNCHECKED()->MonitorExit(env,obj); 1841 functionExit(thr); 1842 return result; 1843 JNI_END 1844 1845 JNI_ENTRY_CHECKED(jint, 1846 checked_jni_GetJavaVM(JNIEnv *env, 1847 JavaVM **vm)) 1848 functionEnter(thr); 1849 jint result = UNCHECKED()->GetJavaVM(env,vm); 1850 functionExit(thr); 1851 return result; 1852 JNI_END 1853 1854 JNI_ENTRY_CHECKED(void, 1855 checked_jni_GetStringRegion(JNIEnv *env, 1856 jstring str, 1857 jsize start, 1858 jsize len, 1859 jchar *buf)) 1860 functionEnter(thr); 1861 IN_VM( 1862 checkString(thr, str); 1863 ) 1864 UNCHECKED()->GetStringRegion(env, str, start, len, buf); 1865 functionExit(thr); 1866 JNI_END 1867 1868 JNI_ENTRY_CHECKED(void, 1869 checked_jni_GetStringUTFRegion(JNIEnv *env, 1870 jstring str, 1871 jsize start, 1872 jsize len, 1873 char *buf)) 1874 functionEnter(thr); 1875 IN_VM( 1876 checkString(thr, str); 1877 ) 1878 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf); 1879 functionExit(thr); 1880 JNI_END 1881 1882 JNI_ENTRY_CHECKED(void *, 1883 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env, 1884 jarray array, 1885 jboolean *isCopy)) 1886 functionEnterCritical(thr); 1887 IN_VM( 1888 check_is_primitive_array(thr, array); 1889 ) 1890 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy); 1891 if (result != NULL) { 1892 result = check_jni_wrap_copy_array(thr, array, result); 1893 } 1894 functionExit(thr); 1895 return result; 1896 JNI_END 1897 1898 JNI_ENTRY_CHECKED(void, 1899 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env, 1900 jarray array, 1901 void *carray, 1902 jint mode)) 1903 functionEnterCriticalExceptionAllowed(thr); 1904 IN_VM( 1905 check_is_primitive_array(thr, array); 1906 ) 1907 // Check the element array... 1908 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode); 1909 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode); 1910 functionExit(thr); 1911 JNI_END 1912 1913 JNI_ENTRY_CHECKED(const jchar*, 1914 checked_jni_GetStringCritical(JNIEnv *env, 1915 jstring string, 1916 jboolean *isCopy)) 1917 functionEnterCritical(thr); 1918 IN_VM( 1919 checkString(thr, string); 1920 ) 1921 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy); 1922 functionExit(thr); 1923 return result; 1924 JNI_END 1925 1926 JNI_ENTRY_CHECKED(void, 1927 checked_jni_ReleaseStringCritical(JNIEnv *env, 1928 jstring str, 1929 const jchar *chars)) 1930 functionEnterCriticalExceptionAllowed(thr); 1931 IN_VM( 1932 checkString(thr, str); 1933 ) 1934 /* The Hotspot JNI code does not use the parameters, so just check the 1935 * string parameter as a minor sanity check 1936 */ 1937 UNCHECKED()->ReleaseStringCritical(env, str, chars); 1938 functionExit(thr); 1939 JNI_END 1940 1941 JNI_ENTRY_CHECKED(jweak, 1942 checked_jni_NewWeakGlobalRef(JNIEnv *env, 1943 jobject obj)) 1944 functionEnter(thr); 1945 IN_VM( 1946 if (obj != NULL) { 1947 jniCheck::validate_handle(thr, obj); 1948 } 1949 ) 1950 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj); 1951 functionExit(thr); 1952 return result; 1953 JNI_END 1954 1955 JNI_ENTRY_CHECKED(void, 1956 checked_jni_DeleteWeakGlobalRef(JNIEnv *env, 1957 jweak ref)) 1958 functionEnterExceptionAllowed(thr); 1959 UNCHECKED()->DeleteWeakGlobalRef(env, ref); 1960 functionExit(thr); 1961 JNI_END 1962 1963 JNI_ENTRY_CHECKED(jboolean, 1964 checked_jni_ExceptionCheck(JNIEnv *env)) 1965 thr->clear_pending_jni_exception_check(); 1966 functionEnterExceptionAllowed(thr); 1967 jboolean result = UNCHECKED()->ExceptionCheck(env); 1968 functionExit(thr); 1969 return result; 1970 JNI_END 1971 1972 JNI_ENTRY_CHECKED(jobject, 1973 checked_jni_NewDirectByteBuffer(JNIEnv *env, 1974 void *address, 1975 jlong capacity)) 1976 functionEnter(thr); 1977 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity); 1978 functionExit(thr); 1979 return result; 1980 JNI_END 1981 1982 JNI_ENTRY_CHECKED(void *, 1983 checked_jni_GetDirectBufferAddress(JNIEnv *env, 1984 jobject buf)) 1985 functionEnter(thr); 1986 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf); 1987 functionExit(thr); 1988 return result; 1989 JNI_END 1990 1991 JNI_ENTRY_CHECKED(jlong, 1992 checked_jni_GetDirectBufferCapacity(JNIEnv *env, 1993 jobject buf)) 1994 functionEnter(thr); 1995 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf); 1996 functionExit(thr); 1997 return result; 1998 JNI_END 1999 2000 JNI_ENTRY_CHECKED(jobjectRefType, 2001 checked_jni_GetObjectRefType(JNIEnv *env, 2002 jobject obj)) 2003 functionEnter(thr); 2004 /* validate the object being passed */ 2005 IN_VM( 2006 jniCheck::validate_object(thr, obj); 2007 ) 2008 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj); 2009 functionExit(thr); 2010 return result; 2011 JNI_END 2012 2013 2014 JNI_ENTRY_CHECKED(jint, 2015 checked_jni_GetVersion(JNIEnv *env)) 2016 functionEnter(thr); 2017 jint result = UNCHECKED()->GetVersion(env); 2018 functionExit(thr); 2019 return result; 2020 JNI_END 2021 2022 JNI_ENTRY_CHECKED(jobject, 2023 checked_jni_GetModule(JNIEnv *env, 2024 jclass clazz)) 2025 functionEnter(thr); 2026 IN_VM( 2027 jniCheck::validate_class(thr, clazz, false); 2028 ) 2029 jobject result = UNCHECKED()->GetModule(env,clazz); 2030 functionExit(thr); 2031 return result; 2032 JNI_END 2033 2034 /* 2035 * Structure containing all checked jni functions 2036 */ 2037 struct JNINativeInterface_ checked_jni_NativeInterface = { 2038 NULL, 2039 NULL, 2040 NULL, 2041 2042 NULL, 2043 2044 checked_jni_GetVersion, 2045 2046 checked_jni_DefineClass, 2047 checked_jni_FindClass, 2048 2049 checked_jni_FromReflectedMethod, 2050 checked_jni_FromReflectedField, 2051 2052 checked_jni_ToReflectedMethod, 2053 2054 checked_jni_GetSuperclass, 2055 checked_jni_IsAssignableFrom, 2056 2057 checked_jni_ToReflectedField, 2058 2059 checked_jni_Throw, 2060 checked_jni_ThrowNew, 2061 checked_jni_ExceptionOccurred, 2062 checked_jni_ExceptionDescribe, 2063 checked_jni_ExceptionClear, 2064 checked_jni_FatalError, 2065 2066 checked_jni_PushLocalFrame, 2067 checked_jni_PopLocalFrame, 2068 2069 checked_jni_NewGlobalRef, 2070 checked_jni_DeleteGlobalRef, 2071 checked_jni_DeleteLocalRef, 2072 checked_jni_IsSameObject, 2073 2074 checked_jni_NewLocalRef, 2075 checked_jni_EnsureLocalCapacity, 2076 2077 checked_jni_AllocObject, 2078 checked_jni_NewObject, 2079 checked_jni_NewObjectV, 2080 checked_jni_NewObjectA, 2081 2082 checked_jni_GetObjectClass, 2083 checked_jni_IsInstanceOf, 2084 2085 checked_jni_GetMethodID, 2086 2087 checked_jni_CallObjectMethod, 2088 checked_jni_CallObjectMethodV, 2089 checked_jni_CallObjectMethodA, 2090 checked_jni_CallBooleanMethod, 2091 checked_jni_CallBooleanMethodV, 2092 checked_jni_CallBooleanMethodA, 2093 checked_jni_CallByteMethod, 2094 checked_jni_CallByteMethodV, 2095 checked_jni_CallByteMethodA, 2096 checked_jni_CallCharMethod, 2097 checked_jni_CallCharMethodV, 2098 checked_jni_CallCharMethodA, 2099 checked_jni_CallShortMethod, 2100 checked_jni_CallShortMethodV, 2101 checked_jni_CallShortMethodA, 2102 checked_jni_CallIntMethod, 2103 checked_jni_CallIntMethodV, 2104 checked_jni_CallIntMethodA, 2105 checked_jni_CallLongMethod, 2106 checked_jni_CallLongMethodV, 2107 checked_jni_CallLongMethodA, 2108 checked_jni_CallFloatMethod, 2109 checked_jni_CallFloatMethodV, 2110 checked_jni_CallFloatMethodA, 2111 checked_jni_CallDoubleMethod, 2112 checked_jni_CallDoubleMethodV, 2113 checked_jni_CallDoubleMethodA, 2114 checked_jni_CallVoidMethod, 2115 checked_jni_CallVoidMethodV, 2116 checked_jni_CallVoidMethodA, 2117 2118 checked_jni_CallNonvirtualObjectMethod, 2119 checked_jni_CallNonvirtualObjectMethodV, 2120 checked_jni_CallNonvirtualObjectMethodA, 2121 checked_jni_CallNonvirtualBooleanMethod, 2122 checked_jni_CallNonvirtualBooleanMethodV, 2123 checked_jni_CallNonvirtualBooleanMethodA, 2124 checked_jni_CallNonvirtualByteMethod, 2125 checked_jni_CallNonvirtualByteMethodV, 2126 checked_jni_CallNonvirtualByteMethodA, 2127 checked_jni_CallNonvirtualCharMethod, 2128 checked_jni_CallNonvirtualCharMethodV, 2129 checked_jni_CallNonvirtualCharMethodA, 2130 checked_jni_CallNonvirtualShortMethod, 2131 checked_jni_CallNonvirtualShortMethodV, 2132 checked_jni_CallNonvirtualShortMethodA, 2133 checked_jni_CallNonvirtualIntMethod, 2134 checked_jni_CallNonvirtualIntMethodV, 2135 checked_jni_CallNonvirtualIntMethodA, 2136 checked_jni_CallNonvirtualLongMethod, 2137 checked_jni_CallNonvirtualLongMethodV, 2138 checked_jni_CallNonvirtualLongMethodA, 2139 checked_jni_CallNonvirtualFloatMethod, 2140 checked_jni_CallNonvirtualFloatMethodV, 2141 checked_jni_CallNonvirtualFloatMethodA, 2142 checked_jni_CallNonvirtualDoubleMethod, 2143 checked_jni_CallNonvirtualDoubleMethodV, 2144 checked_jni_CallNonvirtualDoubleMethodA, 2145 checked_jni_CallNonvirtualVoidMethod, 2146 checked_jni_CallNonvirtualVoidMethodV, 2147 checked_jni_CallNonvirtualVoidMethodA, 2148 2149 checked_jni_GetFieldID, 2150 2151 checked_jni_GetObjectField, 2152 checked_jni_GetBooleanField, 2153 checked_jni_GetByteField, 2154 checked_jni_GetCharField, 2155 checked_jni_GetShortField, 2156 checked_jni_GetIntField, 2157 checked_jni_GetLongField, 2158 checked_jni_GetFloatField, 2159 checked_jni_GetDoubleField, 2160 2161 checked_jni_SetObjectField, 2162 checked_jni_SetBooleanField, 2163 checked_jni_SetByteField, 2164 checked_jni_SetCharField, 2165 checked_jni_SetShortField, 2166 checked_jni_SetIntField, 2167 checked_jni_SetLongField, 2168 checked_jni_SetFloatField, 2169 checked_jni_SetDoubleField, 2170 2171 checked_jni_GetStaticMethodID, 2172 2173 checked_jni_CallStaticObjectMethod, 2174 checked_jni_CallStaticObjectMethodV, 2175 checked_jni_CallStaticObjectMethodA, 2176 checked_jni_CallStaticBooleanMethod, 2177 checked_jni_CallStaticBooleanMethodV, 2178 checked_jni_CallStaticBooleanMethodA, 2179 checked_jni_CallStaticByteMethod, 2180 checked_jni_CallStaticByteMethodV, 2181 checked_jni_CallStaticByteMethodA, 2182 checked_jni_CallStaticCharMethod, 2183 checked_jni_CallStaticCharMethodV, 2184 checked_jni_CallStaticCharMethodA, 2185 checked_jni_CallStaticShortMethod, 2186 checked_jni_CallStaticShortMethodV, 2187 checked_jni_CallStaticShortMethodA, 2188 checked_jni_CallStaticIntMethod, 2189 checked_jni_CallStaticIntMethodV, 2190 checked_jni_CallStaticIntMethodA, 2191 checked_jni_CallStaticLongMethod, 2192 checked_jni_CallStaticLongMethodV, 2193 checked_jni_CallStaticLongMethodA, 2194 checked_jni_CallStaticFloatMethod, 2195 checked_jni_CallStaticFloatMethodV, 2196 checked_jni_CallStaticFloatMethodA, 2197 checked_jni_CallStaticDoubleMethod, 2198 checked_jni_CallStaticDoubleMethodV, 2199 checked_jni_CallStaticDoubleMethodA, 2200 checked_jni_CallStaticVoidMethod, 2201 checked_jni_CallStaticVoidMethodV, 2202 checked_jni_CallStaticVoidMethodA, 2203 2204 checked_jni_GetStaticFieldID, 2205 2206 checked_jni_GetStaticObjectField, 2207 checked_jni_GetStaticBooleanField, 2208 checked_jni_GetStaticByteField, 2209 checked_jni_GetStaticCharField, 2210 checked_jni_GetStaticShortField, 2211 checked_jni_GetStaticIntField, 2212 checked_jni_GetStaticLongField, 2213 checked_jni_GetStaticFloatField, 2214 checked_jni_GetStaticDoubleField, 2215 2216 checked_jni_SetStaticObjectField, 2217 checked_jni_SetStaticBooleanField, 2218 checked_jni_SetStaticByteField, 2219 checked_jni_SetStaticCharField, 2220 checked_jni_SetStaticShortField, 2221 checked_jni_SetStaticIntField, 2222 checked_jni_SetStaticLongField, 2223 checked_jni_SetStaticFloatField, 2224 checked_jni_SetStaticDoubleField, 2225 2226 checked_jni_NewString, 2227 checked_jni_GetStringLength, 2228 checked_jni_GetStringChars, 2229 checked_jni_ReleaseStringChars, 2230 checked_jni_GetStringBytesCritical, 2231 checked_jni_ReleaseStringBytesCritical, 2232 2233 checked_jni_NewStringUTF, 2234 checked_jni_GetStringUTFLength, 2235 checked_jni_GetStringUTFChars, 2236 checked_jni_ReleaseStringUTFChars, 2237 2238 checked_jni_GetArrayLength, 2239 2240 checked_jni_NewObjectArray, 2241 checked_jni_GetObjectArrayElement, 2242 checked_jni_SetObjectArrayElement, 2243 2244 checked_jni_NewBooleanArray, 2245 checked_jni_NewByteArray, 2246 checked_jni_NewCharArray, 2247 checked_jni_NewShortArray, 2248 checked_jni_NewIntArray, 2249 checked_jni_NewLongArray, 2250 checked_jni_NewFloatArray, 2251 checked_jni_NewDoubleArray, 2252 2253 checked_jni_GetBooleanArrayElements, 2254 checked_jni_GetByteArrayElements, 2255 checked_jni_GetCharArrayElements, 2256 checked_jni_GetShortArrayElements, 2257 checked_jni_GetIntArrayElements, 2258 checked_jni_GetLongArrayElements, 2259 checked_jni_GetFloatArrayElements, 2260 checked_jni_GetDoubleArrayElements, 2261 2262 checked_jni_ReleaseBooleanArrayElements, 2263 checked_jni_ReleaseByteArrayElements, 2264 checked_jni_ReleaseCharArrayElements, 2265 checked_jni_ReleaseShortArrayElements, 2266 checked_jni_ReleaseIntArrayElements, 2267 checked_jni_ReleaseLongArrayElements, 2268 checked_jni_ReleaseFloatArrayElements, 2269 checked_jni_ReleaseDoubleArrayElements, 2270 2271 checked_jni_GetBooleanArrayRegion, 2272 checked_jni_GetByteArrayRegion, 2273 checked_jni_GetCharArrayRegion, 2274 checked_jni_GetShortArrayRegion, 2275 checked_jni_GetIntArrayRegion, 2276 checked_jni_GetLongArrayRegion, 2277 checked_jni_GetFloatArrayRegion, 2278 checked_jni_GetDoubleArrayRegion, 2279 2280 checked_jni_SetBooleanArrayRegion, 2281 checked_jni_SetByteArrayRegion, 2282 checked_jni_SetCharArrayRegion, 2283 checked_jni_SetShortArrayRegion, 2284 checked_jni_SetIntArrayRegion, 2285 checked_jni_SetLongArrayRegion, 2286 checked_jni_SetFloatArrayRegion, 2287 checked_jni_SetDoubleArrayRegion, 2288 2289 checked_jni_RegisterNatives, 2290 checked_jni_UnregisterNatives, 2291 2292 checked_jni_MonitorEnter, 2293 checked_jni_MonitorExit, 2294 2295 checked_jni_GetJavaVM, 2296 2297 checked_jni_GetStringRegion, 2298 checked_jni_GetStringUTFRegion, 2299 2300 checked_jni_GetPrimitiveArrayCritical, 2301 checked_jni_ReleasePrimitiveArrayCritical, 2302 2303 checked_jni_GetStringCritical, 2304 checked_jni_ReleaseStringCritical, 2305 2306 checked_jni_NewWeakGlobalRef, 2307 checked_jni_DeleteWeakGlobalRef, 2308 2309 checked_jni_ExceptionCheck, 2310 2311 checked_jni_NewDirectByteBuffer, 2312 checked_jni_GetDirectBufferAddress, 2313 checked_jni_GetDirectBufferCapacity, 2314 2315 // New 1.6 Features 2316 2317 checked_jni_GetObjectRefType, 2318 2319 // Module Features 2320 2321 checked_jni_GetModule 2322 }; 2323 2324 2325 // Returns the function structure 2326 struct JNINativeInterface_* jni_functions_check() { 2327 2328 unchecked_jni_NativeInterface = jni_functions_nocheck(); 2329 2330 // make sure the last pointer in the checked table is not null, indicating 2331 // an addition to the JNINativeInterface_ structure without initializing 2332 // it in the checked table. 2333 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \ 2334 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));) 2335 assert(*lastPtr != 0, 2336 "Mismatched JNINativeInterface tables, check for new entries"); 2337 2338 // with -verbose:jni this message will print 2339 if (PrintJNIResolving) { 2340 tty->print_cr("Checked JNI functions are being used to " \ 2341 "validate JNI usage"); 2342 } 2343 2344 return &checked_jni_NativeInterface; 2345 }