1 /* 2 * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "classfile/systemDictionary.hpp" 27 #include "classfile/vmSymbols.hpp" 28 #include "memory/guardedMemory.hpp" 29 #include "oops/instanceKlass.hpp" 30 #include "oops/oop.inline.hpp" 31 #include "oops/symbol.hpp" 32 #include "prims/jni.h" 33 #include "prims/jniCheck.hpp" 34 #include "prims/jvm_misc.hpp" 35 #include "runtime/fieldDescriptor.hpp" 36 #include "runtime/handles.hpp" 37 #include "runtime/interfaceSupport.hpp" 38 #include "runtime/jfieldIDWorkaround.hpp" 39 #include "runtime/thread.inline.hpp" 40 #ifdef TARGET_ARCH_x86 41 # include "jniTypes_x86.hpp" 42 #endif 43 #ifdef TARGET_ARCH_sparc 44 # include "jniTypes_sparc.hpp" 45 #endif 46 #ifdef TARGET_ARCH_zero 47 # include "jniTypes_zero.hpp" 48 #endif 49 #ifdef TARGET_ARCH_arm 50 # include "jniTypes_arm.hpp" 51 #endif 52 #ifdef TARGET_ARCH_ppc 53 # include "jniTypes_ppc.hpp" 54 #endif 55 56 // Complain every extra number of unplanned local refs 57 #define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32 58 59 // Heap objects are allowed to be directly referenced only in VM code, 60 // not in native code. 61 62 #define ASSERT_OOPS_ALLOWED \ 63 assert(JavaThread::current()->thread_state() == _thread_in_vm, \ 64 "jniCheck examining oops in bad state.") 65 66 67 // Execute the given block of source code with the thread in VM state. 68 // To do this, transition from the NATIVE state to the VM state, execute 69 // the code, and transtition back. The ThreadInVMfromNative constructor 70 // performs the transition to VM state, its destructor restores the 71 // NATIVE state. 72 73 #define IN_VM(source_code) { \ 74 { \ 75 ThreadInVMfromNative __tiv(thr); \ 76 source_code \ 77 } \ 78 } 79 80 81 /* 82 * DECLARATIONS 83 */ 84 85 static struct JNINativeInterface_ * unchecked_jni_NativeInterface; 86 87 88 /* 89 * MACRO DEFINITIONS 90 */ 91 92 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the 93 // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles 94 // to be created if a fatal error should occur. 95 96 // Check for thread not attached to VM; need to catch this before 97 // assertions in the wrapper routines might fire 98 99 // Check for env being the one value appropriate for this thread. 100 101 #define JNI_ENTRY_CHECKED(result_type, header) \ 102 extern "C" { \ 103 result_type JNICALL header { \ 104 JavaThread* thr = (JavaThread*)ThreadLocalStorage::get_thread_slow();\ 105 if (thr == NULL || !thr->is_Java_thread()) { \ 106 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \ 107 os::abort(true); \ 108 } \ 109 JNIEnv* xenv = thr->jni_environment(); \ 110 if (env != xenv) { \ 111 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \ 112 } \ 113 VM_ENTRY_BASE(result_type, header, thr) 114 115 116 #define UNCHECKED() (unchecked_jni_NativeInterface) 117 118 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread"; 119 static const char * warn_bad_class_descriptor = "JNI FindClass received a bad class descriptor \"%s\". A correct class descriptor " \ 120 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases."; 121 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread"; 122 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \ 123 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical"; 124 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI"; 125 static const char * fatal_received_null_class = "JNI received a null class"; 126 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class"; 127 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"; 128 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call"; 129 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call"; 130 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations"; 131 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation"; 132 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation"; 133 static const char * fatal_non_array = "Non-array passed to JNI array operations"; 134 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI"; 135 static const char * fatal_should_be_static = "Non-static field ID passed to JNI"; 136 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI"; 137 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations"; 138 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations"; 139 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI"; 140 static const char * fatal_null_object = "Null object passed to JNI"; 141 static const char * fatal_wrong_field = "Wrong field ID passed to JNI"; 142 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations"; 143 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations"; 144 static const char * fatal_non_string = "JNI string operation received a non-string"; 145 146 147 // When in VM state: 148 static void ReportJNIWarning(JavaThread* thr, const char *msg) { 149 tty->print_cr("WARNING in native method: %s", msg); 150 thr->print_stack(); 151 } 152 153 // When in NATIVE state: 154 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) { 155 IN_VM( 156 ReportJNIFatalError(thr, msg); 157 ) 158 } 159 160 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) { 161 IN_VM( 162 ReportJNIWarning(thr, msg); 163 ) 164 } 165 166 167 168 169 /* 170 * SUPPORT FUNCTIONS 171 */ 172 173 /** 174 * Check whether or not a programmer has actually checked for exceptions. According 175 * to the JNI Specification ("jni/spec/design.html#java_exceptions"): 176 * 177 * There are two cases where the programmer needs to check for exceptions without 178 * being able to first check an error code: 179 * 180 * - The JNI functions that invoke a Java method return the result of the Java method. 181 * The programmer must call ExceptionOccurred() to check for possible exceptions 182 * that occurred during the execution of the Java method. 183 * 184 * - Some of the JNI array access functions do not return an error code, but may 185 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException. 186 * 187 * In all other cases, a non-error return value guarantees that no exceptions have been thrown. 188 */ 189 static inline void 190 check_pending_exception(JavaThread* thr) { 191 if (thr->has_pending_exception()) { 192 NativeReportJNIWarning(thr, "JNI call made with exception pending"); 193 } 194 if (thr->is_pending_jni_exception_check()) { 195 IN_VM( 196 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s", 197 thr->get_pending_jni_exception_check()); 198 thr->print_stack(); 199 ) 200 thr->clear_pending_jni_exception_check(); // Just complain once 201 } 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: %zu, exceeds capacity: %zu", 242 live_handles, planned_capacity); 243 thr->print_stack(); 244 ) 245 // Complain just the once, reset to current + warn threshold 246 handles->set_planned_capacity(live_handles + CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD); 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, warn_bad_class_descriptor, name); 489 ReportJNIWarning(thr, msg); 490 } 491 } 492 493 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) { 494 ASSERT_OOPS_ALLOWED; 495 oop mirror = jniCheck::validate_handle(thr, clazz); 496 if (!mirror) { 497 ReportJNIFatalError(thr, fatal_received_null_class); 498 } 499 500 if (mirror->klass() != SystemDictionary::Class_klass()) { 501 ReportJNIFatalError(thr, fatal_class_not_a_class); 502 } 503 504 Klass* k = java_lang_Class::as_Klass(mirror); 505 // Make allowances for primitive classes ... 506 if (!(k != NULL || allow_primitive && java_lang_Class::is_primitive(mirror))) { 507 ReportJNIFatalError(thr, fatal_class_not_a_class); 508 } 509 return k; 510 } 511 512 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) { 513 ASSERT_OOPS_ALLOWED; 514 assert(klass != NULL, "klass argument must have a value"); 515 516 if (!klass->oop_is_instance() || 517 !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) { 518 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class); 519 } 520 } 521 522 void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) { 523 /* validate the object being passed */ 524 ASSERT_OOPS_ALLOWED; 525 jniCheck::validate_jmethod_id(thr, method_id); 526 jniCheck::validate_object(thr, obj); 527 } 528 529 void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) { 530 /* validate the class being passed */ 531 ASSERT_OOPS_ALLOWED; 532 jniCheck::validate_jmethod_id(thr, method_id); 533 jniCheck::validate_class(thr, clazz, false); 534 } 535 536 537 /* 538 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE 539 */ 540 541 JNI_ENTRY_CHECKED(jclass, 542 checked_jni_DefineClass(JNIEnv *env, 543 const char *name, 544 jobject loader, 545 const jbyte *buf, 546 jsize len)) 547 functionEnter(thr); 548 IN_VM( 549 jniCheck::validate_object(thr, loader); 550 ) 551 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len); 552 functionExit(thr); 553 return result; 554 JNI_END 555 556 JNI_ENTRY_CHECKED(jclass, 557 checked_jni_FindClass(JNIEnv *env, 558 const char *name)) 559 functionEnter(thr); 560 IN_VM( 561 jniCheck::validate_class_descriptor(thr, name); 562 ) 563 jclass result = UNCHECKED()->FindClass(env, name); 564 functionExit(thr); 565 return result; 566 JNI_END 567 568 JNI_ENTRY_CHECKED(jmethodID, 569 checked_jni_FromReflectedMethod(JNIEnv *env, 570 jobject method)) 571 functionEnter(thr); 572 IN_VM( 573 jniCheck::validate_object(thr, method); 574 ) 575 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method); 576 functionExit(thr); 577 return result; 578 JNI_END 579 580 JNI_ENTRY_CHECKED(jfieldID, 581 checked_jni_FromReflectedField(JNIEnv *env, 582 jobject field)) 583 functionEnter(thr); 584 IN_VM( 585 jniCheck::validate_object(thr, field); 586 ) 587 jfieldID result = UNCHECKED()->FromReflectedField(env, field); 588 functionExit(thr); 589 return result; 590 JNI_END 591 592 JNI_ENTRY_CHECKED(jobject, 593 checked_jni_ToReflectedMethod(JNIEnv *env, 594 jclass cls, 595 jmethodID methodID, 596 jboolean isStatic)) 597 functionEnter(thr); 598 IN_VM( 599 jniCheck::validate_class(thr, cls, false); 600 jniCheck::validate_jmethod_id(thr, methodID); 601 ) 602 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID, 603 isStatic); 604 functionExit(thr); 605 return result; 606 JNI_END 607 608 JNI_ENTRY_CHECKED(jclass, 609 checked_jni_GetSuperclass(JNIEnv *env, 610 jclass sub)) 611 functionEnter(thr); 612 IN_VM( 613 jniCheck::validate_class(thr, sub, true); 614 ) 615 jclass result = UNCHECKED()->GetSuperclass(env, sub); 616 functionExit(thr); 617 return result; 618 JNI_END 619 620 JNI_ENTRY_CHECKED(jboolean, 621 checked_jni_IsAssignableFrom(JNIEnv *env, 622 jclass sub, 623 jclass sup)) 624 functionEnter(thr); 625 IN_VM( 626 jniCheck::validate_class(thr, sub, true); 627 jniCheck::validate_class(thr, sup, true); 628 ) 629 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup); 630 functionExit(thr); 631 return result; 632 JNI_END 633 634 JNI_ENTRY_CHECKED(jobject, 635 checked_jni_ToReflectedField(JNIEnv *env, 636 jclass cls, 637 jfieldID fieldID, 638 jboolean isStatic)) 639 functionEnter(thr); 640 IN_VM( 641 jniCheck::validate_class(thr, cls, false); 642 ) 643 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID, 644 isStatic); 645 functionExit(thr); 646 return result; 647 JNI_END 648 649 JNI_ENTRY_CHECKED(jint, 650 checked_jni_Throw(JNIEnv *env, 651 jthrowable obj)) 652 functionEnter(thr); 653 IN_VM( 654 oop oopObj = jniCheck::validate_object(thr, obj); 655 if (oopObj == NULL) { 656 // Unchecked Throw tolerates a NULL obj, so just warn 657 ReportJNIWarning(thr, "JNI Throw called with NULL throwable"); 658 } else { 659 jniCheck::validate_throwable_klass(thr, oopObj->klass()); 660 } 661 ) 662 jint result = UNCHECKED()->Throw(env, obj); 663 functionExit(thr); 664 return result; 665 JNI_END 666 667 JNI_ENTRY_CHECKED(jint, 668 checked_jni_ThrowNew(JNIEnv *env, 669 jclass clazz, 670 const char *msg)) 671 functionEnter(thr); 672 IN_VM( 673 Klass* k = jniCheck::validate_class(thr, clazz, false); 674 assert(k != NULL, "validate_class shouldn't return NULL Klass*"); 675 jniCheck::validate_throwable_klass(thr, k); 676 ) 677 jint result = UNCHECKED()->ThrowNew(env, clazz, msg); 678 functionExit(thr); 679 return result; 680 JNI_END 681 682 JNI_ENTRY_CHECKED(jthrowable, 683 checked_jni_ExceptionOccurred(JNIEnv *env)) 684 thr->clear_pending_jni_exception_check(); 685 functionEnterExceptionAllowed(thr); 686 jthrowable result = UNCHECKED()->ExceptionOccurred(env); 687 functionExit(thr); 688 return result; 689 JNI_END 690 691 JNI_ENTRY_CHECKED(void, 692 checked_jni_ExceptionDescribe(JNIEnv *env)) 693 functionEnterExceptionAllowed(thr); 694 UNCHECKED()->ExceptionDescribe(env); 695 functionExit(thr); 696 JNI_END 697 698 JNI_ENTRY_CHECKED(void, 699 checked_jni_ExceptionClear(JNIEnv *env)) 700 thr->clear_pending_jni_exception_check(); 701 functionEnterExceptionAllowed(thr); 702 UNCHECKED()->ExceptionClear(env); 703 functionExit(thr); 704 JNI_END 705 706 JNI_ENTRY_CHECKED(void, 707 checked_jni_FatalError(JNIEnv *env, 708 const char *msg)) 709 thr->clear_pending_jni_exception_check(); 710 functionEnter(thr); 711 UNCHECKED()->FatalError(env, msg); 712 functionExit(thr); 713 JNI_END 714 715 JNI_ENTRY_CHECKED(jint, 716 checked_jni_PushLocalFrame(JNIEnv *env, 717 jint capacity)) 718 functionEnterExceptionAllowed(thr); 719 if (capacity < 0) 720 NativeReportJNIFatalError(thr, "negative capacity"); 721 jint result = UNCHECKED()->PushLocalFrame(env, capacity); 722 if (result == JNI_OK) { 723 thr->active_handles()->set_planned_capacity(capacity + CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD); 724 } 725 functionExit(thr); 726 return result; 727 JNI_END 728 729 JNI_ENTRY_CHECKED(jobject, 730 checked_jni_PopLocalFrame(JNIEnv *env, 731 jobject result)) 732 functionEnterExceptionAllowed(thr); 733 jobject res = UNCHECKED()->PopLocalFrame(env, result); 734 functionExit(thr); 735 return res; 736 JNI_END 737 738 JNI_ENTRY_CHECKED(jobject, 739 checked_jni_NewGlobalRef(JNIEnv *env, 740 jobject lobj)) 741 functionEnter(thr); 742 IN_VM( 743 if (lobj != NULL) { 744 jniCheck::validate_handle(thr, lobj); 745 } 746 ) 747 jobject result = UNCHECKED()->NewGlobalRef(env,lobj); 748 functionExit(thr); 749 return result; 750 JNI_END 751 752 JNI_ENTRY_CHECKED(void, 753 checked_jni_DeleteGlobalRef(JNIEnv *env, 754 jobject gref)) 755 functionEnterExceptionAllowed(thr); 756 IN_VM( 757 jniCheck::validate_object(thr, gref); 758 if (gref && !JNIHandles::is_global_handle(gref)) { 759 ReportJNIFatalError(thr, 760 "Invalid global JNI handle passed to DeleteGlobalRef"); 761 } 762 ) 763 UNCHECKED()->DeleteGlobalRef(env,gref); 764 functionExit(thr); 765 JNI_END 766 767 JNI_ENTRY_CHECKED(void, 768 checked_jni_DeleteLocalRef(JNIEnv *env, 769 jobject obj)) 770 functionEnterExceptionAllowed(thr); 771 IN_VM( 772 jniCheck::validate_object(thr, obj); 773 if (obj && !(JNIHandles::is_local_handle(thr, obj) || 774 JNIHandles::is_frame_handle(thr, obj))) 775 ReportJNIFatalError(thr, 776 "Invalid local JNI handle passed to DeleteLocalRef"); 777 ) 778 UNCHECKED()->DeleteLocalRef(env, obj); 779 functionExit(thr); 780 JNI_END 781 782 JNI_ENTRY_CHECKED(jboolean, 783 checked_jni_IsSameObject(JNIEnv *env, 784 jobject obj1, 785 jobject obj2)) 786 functionEnterExceptionAllowed(thr); 787 IN_VM( 788 /* This JNI function can be used to compare weak global references 789 * to NULL objects. If the handles are valid, but contain NULL, 790 * then don't attempt to validate the object. 791 */ 792 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) { 793 jniCheck::validate_object(thr, obj1); 794 } 795 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) { 796 jniCheck::validate_object(thr, obj2); 797 } 798 ) 799 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2); 800 functionExit(thr); 801 return result; 802 JNI_END 803 804 JNI_ENTRY_CHECKED(jobject, 805 checked_jni_NewLocalRef(JNIEnv *env, 806 jobject ref)) 807 functionEnter(thr); 808 IN_VM( 809 if (ref != NULL) { 810 jniCheck::validate_handle(thr, ref); 811 } 812 ) 813 jobject result = UNCHECKED()->NewLocalRef(env, ref); 814 functionExit(thr); 815 return result; 816 JNI_END 817 818 JNI_ENTRY_CHECKED(jint, 819 checked_jni_EnsureLocalCapacity(JNIEnv *env, 820 jint capacity)) 821 functionEnter(thr); 822 if (capacity < 0) { 823 NativeReportJNIFatalError(thr, "negative capacity"); 824 } 825 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity); 826 if (result == JNI_OK) { 827 thr->active_handles()->set_planned_capacity(capacity + CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD); 828 } 829 functionExit(thr); 830 return result; 831 JNI_END 832 833 JNI_ENTRY_CHECKED(jobject, 834 checked_jni_AllocObject(JNIEnv *env, 835 jclass clazz)) 836 functionEnter(thr); 837 IN_VM( 838 jniCheck::validate_class(thr, clazz, false); 839 ) 840 jobject result = UNCHECKED()->AllocObject(env,clazz); 841 functionExit(thr); 842 return result; 843 JNI_END 844 845 JNI_ENTRY_CHECKED(jobject, 846 checked_jni_NewObject(JNIEnv *env, 847 jclass clazz, 848 jmethodID methodID, 849 ...)) 850 functionEnter(thr); 851 va_list args; 852 IN_VM( 853 jniCheck::validate_class(thr, clazz, false); 854 jniCheck::validate_jmethod_id(thr, methodID); 855 ) 856 va_start(args, methodID); 857 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args); 858 va_end(args); 859 functionExit(thr); 860 return result; 861 JNI_END 862 863 JNI_ENTRY_CHECKED(jobject, 864 checked_jni_NewObjectV(JNIEnv *env, 865 jclass clazz, 866 jmethodID methodID, 867 va_list args)) 868 functionEnter(thr); 869 IN_VM( 870 jniCheck::validate_class(thr, clazz, false); 871 jniCheck::validate_jmethod_id(thr, methodID); 872 ) 873 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args); 874 functionExit(thr); 875 return result; 876 JNI_END 877 878 JNI_ENTRY_CHECKED(jobject, 879 checked_jni_NewObjectA(JNIEnv *env, 880 jclass clazz, 881 jmethodID methodID, 882 const jvalue *args)) 883 functionEnter(thr); 884 IN_VM( 885 jniCheck::validate_class(thr, clazz, false); 886 jniCheck::validate_jmethod_id(thr, methodID); 887 ) 888 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args); 889 functionExit(thr); 890 return result; 891 JNI_END 892 893 JNI_ENTRY_CHECKED(jclass, 894 checked_jni_GetObjectClass(JNIEnv *env, 895 jobject obj)) 896 functionEnter(thr); 897 IN_VM( 898 jniCheck::validate_object(thr, obj); 899 ) 900 jclass result = UNCHECKED()->GetObjectClass(env,obj); 901 functionExit(thr); 902 return result; 903 JNI_END 904 905 JNI_ENTRY_CHECKED(jboolean, 906 checked_jni_IsInstanceOf(JNIEnv *env, 907 jobject obj, 908 jclass clazz)) 909 functionEnter(thr); 910 IN_VM( 911 jniCheck::validate_object(thr, obj); 912 jniCheck::validate_class(thr, clazz, true); 913 ) 914 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz); 915 functionExit(thr); 916 return result; 917 JNI_END 918 919 JNI_ENTRY_CHECKED(jmethodID, 920 checked_jni_GetMethodID(JNIEnv *env, 921 jclass clazz, 922 const char *name, 923 const char *sig)) 924 functionEnter(thr); 925 IN_VM( 926 jniCheck::validate_class(thr, clazz, false); 927 ) 928 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig); 929 functionExit(thr); 930 return result; 931 JNI_END 932 933 #define WRAPPER_CallMethod(ResultType, Result) \ 934 JNI_ENTRY_CHECKED(ResultType, \ 935 checked_jni_Call##Result##Method(JNIEnv *env, \ 936 jobject obj, \ 937 jmethodID methodID, \ 938 ...)) \ 939 functionEnter(thr); \ 940 va_list args; \ 941 IN_VM( \ 942 jniCheck::validate_call_object(thr, obj, methodID); \ 943 ) \ 944 va_start(args,methodID); \ 945 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \ 946 args); \ 947 va_end(args); \ 948 thr->set_pending_jni_exception_check("Call"#Result"Method"); \ 949 functionExit(thr); \ 950 return result; \ 951 JNI_END \ 952 \ 953 JNI_ENTRY_CHECKED(ResultType, \ 954 checked_jni_Call##Result##MethodV(JNIEnv *env, \ 955 jobject obj, \ 956 jmethodID methodID, \ 957 va_list args)) \ 958 functionEnter(thr); \ 959 IN_VM(\ 960 jniCheck::validate_call_object(thr, obj, methodID); \ 961 ) \ 962 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\ 963 args); \ 964 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \ 965 functionExit(thr); \ 966 return result; \ 967 JNI_END \ 968 \ 969 JNI_ENTRY_CHECKED(ResultType, \ 970 checked_jni_Call##Result##MethodA(JNIEnv *env, \ 971 jobject obj, \ 972 jmethodID methodID, \ 973 const jvalue * args)) \ 974 functionEnter(thr); \ 975 IN_VM( \ 976 jniCheck::validate_call_object(thr, obj, methodID); \ 977 ) \ 978 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\ 979 args); \ 980 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \ 981 functionExit(thr); \ 982 return result; \ 983 JNI_END 984 985 WRAPPER_CallMethod(jobject,Object) 986 WRAPPER_CallMethod(jboolean,Boolean) 987 WRAPPER_CallMethod(jbyte,Byte) 988 WRAPPER_CallMethod(jshort,Short) 989 WRAPPER_CallMethod(jchar,Char) 990 WRAPPER_CallMethod(jint,Int) 991 WRAPPER_CallMethod(jlong,Long) 992 WRAPPER_CallMethod(jfloat,Float) 993 WRAPPER_CallMethod(jdouble,Double) 994 995 JNI_ENTRY_CHECKED(void, 996 checked_jni_CallVoidMethod(JNIEnv *env, \ 997 jobject obj, \ 998 jmethodID methodID, \ 999 ...)) 1000 functionEnter(thr); 1001 va_list args; 1002 IN_VM( 1003 jniCheck::validate_call_object(thr, obj, methodID); 1004 ) 1005 va_start(args,methodID); 1006 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args); 1007 va_end(args); 1008 thr->set_pending_jni_exception_check("CallVoidMethod"); 1009 functionExit(thr); 1010 JNI_END 1011 1012 JNI_ENTRY_CHECKED(void, 1013 checked_jni_CallVoidMethodV(JNIEnv *env, 1014 jobject obj, 1015 jmethodID methodID, 1016 va_list args)) 1017 functionEnter(thr); 1018 IN_VM( 1019 jniCheck::validate_call_object(thr, obj, methodID); 1020 ) 1021 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args); 1022 thr->set_pending_jni_exception_check("CallVoidMethodV"); 1023 functionExit(thr); 1024 JNI_END 1025 1026 JNI_ENTRY_CHECKED(void, 1027 checked_jni_CallVoidMethodA(JNIEnv *env, 1028 jobject obj, 1029 jmethodID methodID, 1030 const jvalue * args)) 1031 functionEnter(thr); 1032 IN_VM( 1033 jniCheck::validate_call_object(thr, obj, methodID); 1034 ) 1035 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args); 1036 thr->set_pending_jni_exception_check("CallVoidMethodA"); 1037 functionExit(thr); 1038 JNI_END 1039 1040 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \ 1041 JNI_ENTRY_CHECKED(ResultType, \ 1042 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \ 1043 jobject obj, \ 1044 jclass clazz, \ 1045 jmethodID methodID, \ 1046 ...)) \ 1047 functionEnter(thr); \ 1048 va_list args; \ 1049 IN_VM( \ 1050 jniCheck::validate_call_object(thr, obj, methodID); \ 1051 jniCheck::validate_call_class(thr, clazz, methodID); \ 1052 ) \ 1053 va_start(args,methodID); \ 1054 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \ 1055 obj, \ 1056 clazz, \ 1057 methodID,\ 1058 args); \ 1059 va_end(args); \ 1060 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \ 1061 functionExit(thr); \ 1062 return result; \ 1063 JNI_END \ 1064 \ 1065 JNI_ENTRY_CHECKED(ResultType, \ 1066 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \ 1067 jobject obj, \ 1068 jclass clazz, \ 1069 jmethodID methodID, \ 1070 va_list args)) \ 1071 functionEnter(thr); \ 1072 IN_VM( \ 1073 jniCheck::validate_call_object(thr, obj, methodID); \ 1074 jniCheck::validate_call_class(thr, clazz, methodID); \ 1075 ) \ 1076 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \ 1077 obj, \ 1078 clazz, \ 1079 methodID,\ 1080 args); \ 1081 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \ 1082 functionExit(thr); \ 1083 return result; \ 1084 JNI_END \ 1085 \ 1086 JNI_ENTRY_CHECKED(ResultType, \ 1087 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \ 1088 jobject obj, \ 1089 jclass clazz, \ 1090 jmethodID methodID, \ 1091 const jvalue * args)) \ 1092 functionEnter(thr); \ 1093 IN_VM( \ 1094 jniCheck::validate_call_object(thr, obj, methodID); \ 1095 jniCheck::validate_call_class(thr, clazz, methodID); \ 1096 ) \ 1097 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \ 1098 obj, \ 1099 clazz, \ 1100 methodID,\ 1101 args); \ 1102 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \ 1103 functionExit(thr); \ 1104 return result; \ 1105 JNI_END 1106 1107 WRAPPER_CallNonvirtualMethod(jobject,Object) 1108 WRAPPER_CallNonvirtualMethod(jboolean,Boolean) 1109 WRAPPER_CallNonvirtualMethod(jbyte,Byte) 1110 WRAPPER_CallNonvirtualMethod(jshort,Short) 1111 WRAPPER_CallNonvirtualMethod(jchar,Char) 1112 WRAPPER_CallNonvirtualMethod(jint,Int) 1113 WRAPPER_CallNonvirtualMethod(jlong,Long) 1114 WRAPPER_CallNonvirtualMethod(jfloat,Float) 1115 WRAPPER_CallNonvirtualMethod(jdouble,Double) 1116 1117 JNI_ENTRY_CHECKED(void, 1118 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env, 1119 jobject obj, 1120 jclass clazz, 1121 jmethodID methodID, 1122 ...)) 1123 functionEnter(thr); 1124 va_list args; 1125 IN_VM( 1126 jniCheck::validate_call_object(thr, obj, methodID); 1127 jniCheck::validate_call_class(thr, clazz, methodID); 1128 ) 1129 va_start(args,methodID); 1130 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args); 1131 va_end(args); 1132 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod"); 1133 functionExit(thr); 1134 JNI_END 1135 1136 JNI_ENTRY_CHECKED(void, 1137 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env, 1138 jobject obj, 1139 jclass clazz, 1140 jmethodID methodID, 1141 va_list args)) 1142 functionEnter(thr); 1143 IN_VM( 1144 jniCheck::validate_call_object(thr, obj, methodID); 1145 jniCheck::validate_call_class(thr, clazz, methodID); 1146 ) 1147 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args); 1148 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV"); 1149 functionExit(thr); 1150 JNI_END 1151 1152 JNI_ENTRY_CHECKED(void, 1153 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env, 1154 jobject obj, 1155 jclass clazz, 1156 jmethodID methodID, 1157 const jvalue * args)) 1158 functionEnter(thr); 1159 IN_VM( 1160 jniCheck::validate_call_object(thr, obj, methodID); 1161 jniCheck::validate_call_class(thr, clazz, methodID); 1162 ) 1163 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args); 1164 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA"); 1165 functionExit(thr); 1166 JNI_END 1167 1168 JNI_ENTRY_CHECKED(jfieldID, 1169 checked_jni_GetFieldID(JNIEnv *env, 1170 jclass clazz, 1171 const char *name, 1172 const char *sig)) 1173 functionEnter(thr); 1174 IN_VM( 1175 jniCheck::validate_class(thr, clazz, false); 1176 ) 1177 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig); 1178 functionExit(thr); 1179 return result; 1180 JNI_END 1181 1182 #define WRAPPER_GetField(ReturnType,Result,FieldType) \ 1183 JNI_ENTRY_CHECKED(ReturnType, \ 1184 checked_jni_Get##Result##Field(JNIEnv *env, \ 1185 jobject obj, \ 1186 jfieldID fieldID)) \ 1187 functionEnter(thr); \ 1188 IN_VM( \ 1189 checkInstanceFieldID(thr, fieldID, obj, FieldType); \ 1190 ) \ 1191 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \ 1192 functionExit(thr); \ 1193 return result; \ 1194 JNI_END 1195 1196 WRAPPER_GetField(jobject, Object, T_OBJECT) 1197 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN) 1198 WRAPPER_GetField(jbyte, Byte, T_BYTE) 1199 WRAPPER_GetField(jshort, Short, T_SHORT) 1200 WRAPPER_GetField(jchar, Char, T_CHAR) 1201 WRAPPER_GetField(jint, Int, T_INT) 1202 WRAPPER_GetField(jlong, Long, T_LONG) 1203 WRAPPER_GetField(jfloat, Float, T_FLOAT) 1204 WRAPPER_GetField(jdouble, Double, T_DOUBLE) 1205 1206 #define WRAPPER_SetField(ValueType,Result,FieldType) \ 1207 JNI_ENTRY_CHECKED(void, \ 1208 checked_jni_Set##Result##Field(JNIEnv *env, \ 1209 jobject obj, \ 1210 jfieldID fieldID, \ 1211 ValueType val)) \ 1212 functionEnter(thr); \ 1213 IN_VM( \ 1214 checkInstanceFieldID(thr, fieldID, obj, FieldType); \ 1215 ) \ 1216 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \ 1217 functionExit(thr); \ 1218 JNI_END 1219 1220 WRAPPER_SetField(jobject, Object, T_OBJECT) 1221 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN) 1222 WRAPPER_SetField(jbyte, Byte, T_BYTE) 1223 WRAPPER_SetField(jshort, Short, T_SHORT) 1224 WRAPPER_SetField(jchar, Char, T_CHAR) 1225 WRAPPER_SetField(jint, Int, T_INT) 1226 WRAPPER_SetField(jlong, Long, T_LONG) 1227 WRAPPER_SetField(jfloat, Float, T_FLOAT) 1228 WRAPPER_SetField(jdouble, Double, T_DOUBLE) 1229 1230 1231 JNI_ENTRY_CHECKED(jmethodID, 1232 checked_jni_GetStaticMethodID(JNIEnv *env, 1233 jclass clazz, 1234 const char *name, 1235 const char *sig)) 1236 functionEnter(thr); 1237 IN_VM( 1238 jniCheck::validate_class(thr, clazz, false); 1239 ) 1240 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig); 1241 functionExit(thr); 1242 return result; 1243 JNI_END 1244 1245 #define WRAPPER_CallStaticMethod(ReturnType,Result) \ 1246 JNI_ENTRY_CHECKED(ReturnType, \ 1247 checked_jni_CallStatic##Result##Method(JNIEnv *env, \ 1248 jclass clazz, \ 1249 jmethodID methodID, \ 1250 ...)) \ 1251 functionEnter(thr); \ 1252 va_list args; \ 1253 IN_VM( \ 1254 jniCheck::validate_jmethod_id(thr, methodID); \ 1255 jniCheck::validate_class(thr, clazz, false); \ 1256 ) \ 1257 va_start(args,methodID); \ 1258 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \ 1259 clazz, \ 1260 methodID, \ 1261 args); \ 1262 va_end(args); \ 1263 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \ 1264 functionExit(thr); \ 1265 return result; \ 1266 JNI_END \ 1267 \ 1268 JNI_ENTRY_CHECKED(ReturnType, \ 1269 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \ 1270 jclass clazz, \ 1271 jmethodID methodID,\ 1272 va_list args)) \ 1273 functionEnter(thr); \ 1274 IN_VM( \ 1275 jniCheck::validate_jmethod_id(thr, methodID); \ 1276 jniCheck::validate_class(thr, clazz, false); \ 1277 ) \ 1278 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \ 1279 clazz, \ 1280 methodID, \ 1281 args); \ 1282 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \ 1283 functionExit(thr); \ 1284 return result; \ 1285 JNI_END \ 1286 \ 1287 JNI_ENTRY_CHECKED(ReturnType, \ 1288 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \ 1289 jclass clazz, \ 1290 jmethodID methodID, \ 1291 const jvalue *args)) \ 1292 functionEnter(thr); \ 1293 IN_VM( \ 1294 jniCheck::validate_jmethod_id(thr, methodID); \ 1295 jniCheck::validate_class(thr, clazz, false); \ 1296 ) \ 1297 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \ 1298 clazz, \ 1299 methodID, \ 1300 args); \ 1301 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \ 1302 functionExit(thr); \ 1303 return result; \ 1304 JNI_END 1305 1306 WRAPPER_CallStaticMethod(jobject,Object) 1307 WRAPPER_CallStaticMethod(jboolean,Boolean) 1308 WRAPPER_CallStaticMethod(jbyte,Byte) 1309 WRAPPER_CallStaticMethod(jshort,Short) 1310 WRAPPER_CallStaticMethod(jchar,Char) 1311 WRAPPER_CallStaticMethod(jint,Int) 1312 WRAPPER_CallStaticMethod(jlong,Long) 1313 WRAPPER_CallStaticMethod(jfloat,Float) 1314 WRAPPER_CallStaticMethod(jdouble,Double) 1315 1316 JNI_ENTRY_CHECKED(void, 1317 checked_jni_CallStaticVoidMethod(JNIEnv *env, 1318 jclass cls, 1319 jmethodID methodID, 1320 ...)) 1321 functionEnter(thr); 1322 va_list args; 1323 IN_VM( 1324 jniCheck::validate_jmethod_id(thr, methodID); 1325 jniCheck::validate_class(thr, cls, false); 1326 ) 1327 va_start(args,methodID); 1328 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args); 1329 va_end(args); 1330 thr->set_pending_jni_exception_check("CallStaticVoidMethod"); 1331 functionExit(thr); 1332 JNI_END 1333 1334 JNI_ENTRY_CHECKED(void, 1335 checked_jni_CallStaticVoidMethodV(JNIEnv *env, 1336 jclass cls, 1337 jmethodID methodID, 1338 va_list args)) 1339 functionEnter(thr); 1340 IN_VM( 1341 jniCheck::validate_jmethod_id(thr, methodID); 1342 jniCheck::validate_class(thr, cls, false); 1343 ) 1344 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args); 1345 thr->set_pending_jni_exception_check("CallStaticVoidMethodV"); 1346 functionExit(thr); 1347 JNI_END 1348 1349 JNI_ENTRY_CHECKED(void, 1350 checked_jni_CallStaticVoidMethodA(JNIEnv *env, 1351 jclass cls, 1352 jmethodID methodID, 1353 const jvalue * args)) 1354 functionEnter(thr); 1355 IN_VM( 1356 jniCheck::validate_jmethod_id(thr, methodID); 1357 jniCheck::validate_class(thr, cls, false); 1358 ) 1359 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args); 1360 thr->set_pending_jni_exception_check("CallStaticVoidMethodA"); 1361 functionExit(thr); 1362 JNI_END 1363 1364 JNI_ENTRY_CHECKED(jfieldID, 1365 checked_jni_GetStaticFieldID(JNIEnv *env, 1366 jclass clazz, 1367 const char *name, 1368 const char *sig)) 1369 functionEnter(thr); 1370 IN_VM( 1371 jniCheck::validate_class(thr, clazz, false); 1372 ) 1373 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig); 1374 functionExit(thr); 1375 return result; 1376 JNI_END 1377 1378 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \ 1379 JNI_ENTRY_CHECKED(ReturnType, \ 1380 checked_jni_GetStatic##Result##Field(JNIEnv *env, \ 1381 jclass clazz, \ 1382 jfieldID fieldID)) \ 1383 functionEnter(thr); \ 1384 IN_VM( \ 1385 jniCheck::validate_class(thr, clazz, false); \ 1386 checkStaticFieldID(thr, fieldID, clazz, FieldType); \ 1387 ) \ 1388 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \ 1389 clazz, \ 1390 fieldID); \ 1391 functionExit(thr); \ 1392 return result; \ 1393 JNI_END 1394 1395 WRAPPER_GetStaticField(jobject, Object, T_OBJECT) 1396 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN) 1397 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE) 1398 WRAPPER_GetStaticField(jshort, Short, T_SHORT) 1399 WRAPPER_GetStaticField(jchar, Char, T_CHAR) 1400 WRAPPER_GetStaticField(jint, Int, T_INT) 1401 WRAPPER_GetStaticField(jlong, Long, T_LONG) 1402 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT) 1403 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE) 1404 1405 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \ 1406 JNI_ENTRY_CHECKED(void, \ 1407 checked_jni_SetStatic##Result##Field(JNIEnv *env, \ 1408 jclass clazz, \ 1409 jfieldID fieldID, \ 1410 ValueType value)) \ 1411 functionEnter(thr); \ 1412 IN_VM( \ 1413 jniCheck::validate_class(thr, clazz, false); \ 1414 checkStaticFieldID(thr, fieldID, clazz, FieldType); \ 1415 ) \ 1416 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \ 1417 functionExit(thr); \ 1418 JNI_END 1419 1420 WRAPPER_SetStaticField(jobject, Object, T_OBJECT) 1421 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN) 1422 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE) 1423 WRAPPER_SetStaticField(jshort, Short, T_SHORT) 1424 WRAPPER_SetStaticField(jchar, Char, T_CHAR) 1425 WRAPPER_SetStaticField(jint, Int, T_INT) 1426 WRAPPER_SetStaticField(jlong, Long, T_LONG) 1427 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT) 1428 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE) 1429 1430 1431 JNI_ENTRY_CHECKED(jstring, 1432 checked_jni_NewString(JNIEnv *env, 1433 const jchar *unicode, 1434 jsize len)) 1435 functionEnter(thr); 1436 jstring result = UNCHECKED()->NewString(env,unicode,len); 1437 functionExit(thr); 1438 return result; 1439 JNI_END 1440 1441 JNI_ENTRY_CHECKED(jsize, 1442 checked_jni_GetStringLength(JNIEnv *env, 1443 jstring str)) 1444 functionEnter(thr); 1445 IN_VM( 1446 checkString(thr, str); 1447 ) 1448 jsize result = UNCHECKED()->GetStringLength(env,str); 1449 functionExit(thr); 1450 return result; 1451 JNI_END 1452 1453 // Arbitrary (but well-known) tag 1454 const void* STRING_TAG = (void*)0x47114711; 1455 1456 JNI_ENTRY_CHECKED(const jchar *, 1457 checked_jni_GetStringChars(JNIEnv *env, 1458 jstring str, 1459 jboolean *isCopy)) 1460 functionEnter(thr); 1461 IN_VM( 1462 checkString(thr, str); 1463 ) 1464 jchar* new_result = NULL; 1465 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy); 1466 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected"); 1467 if (result != NULL) { 1468 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination 1469 len *= sizeof(jchar); 1470 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG); 1471 if (new_result == NULL) { 1472 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars"); 1473 } 1474 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes 1475 // Note that the dtrace arguments for the allocated memory will not match up with this solution. 1476 FreeHeap((char*)result); 1477 } 1478 functionExit(thr); 1479 return new_result; 1480 JNI_END 1481 1482 JNI_ENTRY_CHECKED(void, 1483 checked_jni_ReleaseStringChars(JNIEnv *env, 1484 jstring str, 1485 const jchar *chars)) 1486 functionEnterExceptionAllowed(thr); 1487 IN_VM( 1488 checkString(thr, str); 1489 ) 1490 if (chars == NULL) { 1491 // still do the unchecked call to allow dtrace probes 1492 UNCHECKED()->ReleaseStringChars(env,str,chars); 1493 } 1494 else { 1495 GuardedMemory guarded((void*)chars); 1496 if (!guarded.verify_guards()) { 1497 tty->print_cr("ReleaseStringChars: release chars failed bounds check. " 1498 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars)); 1499 guarded.print_on(tty); 1500 NativeReportJNIFatalError(thr, "ReleaseStringChars: " 1501 "release chars failed bounds check."); 1502 } 1503 if (guarded.get_tag() != STRING_TAG) { 1504 tty->print_cr("ReleaseStringChars: called on something not allocated " 1505 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT, 1506 p2i(str), p2i(chars)); 1507 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something " 1508 "not allocated by GetStringChars"); 1509 } 1510 UNCHECKED()->ReleaseStringChars(env, str, 1511 (const jchar*) guarded.release_for_freeing()); 1512 } 1513 functionExit(thr); 1514 JNI_END 1515 1516 JNI_ENTRY_CHECKED(jstring, 1517 checked_jni_NewStringUTF(JNIEnv *env, 1518 const char *utf)) 1519 functionEnter(thr); 1520 jstring result = UNCHECKED()->NewStringUTF(env,utf); 1521 functionExit(thr); 1522 return result; 1523 JNI_END 1524 1525 JNI_ENTRY_CHECKED(jsize, 1526 checked_jni_GetStringUTFLength(JNIEnv *env, 1527 jstring str)) 1528 functionEnter(thr); 1529 IN_VM( 1530 checkString(thr, str); 1531 ) 1532 jsize result = UNCHECKED()->GetStringUTFLength(env,str); 1533 functionExit(thr); 1534 return result; 1535 JNI_END 1536 1537 // Arbitrary (but well-known) tag - different than GetStringChars 1538 const void* STRING_UTF_TAG = (void*) 0x48124812; 1539 1540 JNI_ENTRY_CHECKED(const char *, 1541 checked_jni_GetStringUTFChars(JNIEnv *env, 1542 jstring str, 1543 jboolean *isCopy)) 1544 functionEnter(thr); 1545 IN_VM( 1546 checkString(thr, str); 1547 ) 1548 char* new_result = NULL; 1549 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy); 1550 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected"); 1551 if (result != NULL) { 1552 size_t len = strlen(result) + 1; // + 1 for NULL termination 1553 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG); 1554 if (new_result == NULL) { 1555 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars"); 1556 } 1557 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes 1558 // Note that the dtrace arguments for the allocated memory will not match up with this solution. 1559 FreeHeap((char*)result, mtInternal); 1560 } 1561 functionExit(thr); 1562 return new_result; 1563 JNI_END 1564 1565 JNI_ENTRY_CHECKED(void, 1566 checked_jni_ReleaseStringUTFChars(JNIEnv *env, 1567 jstring str, 1568 const char* chars)) 1569 functionEnterExceptionAllowed(thr); 1570 IN_VM( 1571 checkString(thr, str); 1572 ) 1573 if (chars == NULL) { 1574 // still do the unchecked call to allow dtrace probes 1575 UNCHECKED()->ReleaseStringUTFChars(env,str,chars); 1576 } 1577 else { 1578 GuardedMemory guarded((void*)chars); 1579 if (!guarded.verify_guards()) { 1580 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. " 1581 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars)); 1582 guarded.print_on(tty); 1583 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: " 1584 "release chars failed bounds check."); 1585 } 1586 if (guarded.get_tag() != STRING_UTF_TAG) { 1587 tty->print_cr("ReleaseStringUTFChars: called on something not " 1588 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: " 1589 PTR_FORMAT, p2i(str), p2i(chars)); 1590 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars " 1591 "called on something not allocated by GetStringUTFChars"); 1592 } 1593 UNCHECKED()->ReleaseStringUTFChars(env, str, 1594 (const char*) guarded.release_for_freeing()); 1595 } 1596 functionExit(thr); 1597 JNI_END 1598 1599 JNI_ENTRY_CHECKED(jsize, 1600 checked_jni_GetArrayLength(JNIEnv *env, 1601 jarray array)) 1602 functionEnter(thr); 1603 IN_VM( 1604 check_is_array(thr, array); 1605 ) 1606 jsize result = UNCHECKED()->GetArrayLength(env,array); 1607 functionExit(thr); 1608 return result; 1609 JNI_END 1610 1611 JNI_ENTRY_CHECKED(jobjectArray, 1612 checked_jni_NewObjectArray(JNIEnv *env, 1613 jsize len, 1614 jclass clazz, 1615 jobject init)) 1616 functionEnter(thr); 1617 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init); 1618 functionExit(thr); 1619 return result; 1620 JNI_END 1621 1622 JNI_ENTRY_CHECKED(jobject, 1623 checked_jni_GetObjectArrayElement(JNIEnv *env, 1624 jobjectArray array, 1625 jsize index)) 1626 functionEnter(thr); 1627 IN_VM( 1628 check_is_obj_array(thr, array); 1629 ) 1630 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index); 1631 thr->set_pending_jni_exception_check("GetObjectArrayElement"); 1632 functionExit(thr); 1633 return result; 1634 JNI_END 1635 1636 JNI_ENTRY_CHECKED(void, 1637 checked_jni_SetObjectArrayElement(JNIEnv *env, 1638 jobjectArray array, 1639 jsize index, 1640 jobject val)) 1641 functionEnter(thr); 1642 IN_VM( 1643 check_is_obj_array(thr, array); 1644 ) 1645 UNCHECKED()->SetObjectArrayElement(env,array,index,val); 1646 thr->set_pending_jni_exception_check("SetObjectArrayElement"); 1647 functionExit(thr); 1648 JNI_END 1649 1650 #define WRAPPER_NewScalarArray(Return, Result) \ 1651 JNI_ENTRY_CHECKED(Return, \ 1652 checked_jni_New##Result##Array(JNIEnv *env, \ 1653 jsize len)) \ 1654 functionEnter(thr); \ 1655 Return result = UNCHECKED()->New##Result##Array(env,len); \ 1656 functionExit(thr); \ 1657 return (Return) result; \ 1658 JNI_END 1659 1660 WRAPPER_NewScalarArray(jbooleanArray, Boolean) 1661 WRAPPER_NewScalarArray(jbyteArray, Byte) 1662 WRAPPER_NewScalarArray(jshortArray, Short) 1663 WRAPPER_NewScalarArray(jcharArray, Char) 1664 WRAPPER_NewScalarArray(jintArray, Int) 1665 WRAPPER_NewScalarArray(jlongArray, Long) 1666 WRAPPER_NewScalarArray(jfloatArray, Float) 1667 WRAPPER_NewScalarArray(jdoubleArray, Double) 1668 1669 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \ 1670 JNI_ENTRY_CHECKED(ElementType *, \ 1671 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \ 1672 ElementType##Array array, \ 1673 jboolean *isCopy)) \ 1674 functionEnter(thr); \ 1675 IN_VM( \ 1676 check_primitive_array_type(thr, array, ElementTag); \ 1677 ) \ 1678 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \ 1679 array, \ 1680 isCopy); \ 1681 if (result != NULL) { \ 1682 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \ 1683 } \ 1684 functionExit(thr); \ 1685 return result; \ 1686 JNI_END 1687 1688 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean) 1689 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte) 1690 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short) 1691 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char) 1692 WRAPPER_GetScalarArrayElements(T_INT, jint, Int) 1693 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long) 1694 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float) 1695 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double) 1696 1697 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \ 1698 JNI_ENTRY_CHECKED(void, \ 1699 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \ 1700 ElementType##Array array, \ 1701 ElementType *elems, \ 1702 jint mode)) \ 1703 functionEnterExceptionAllowed(thr); \ 1704 IN_VM( \ 1705 check_primitive_array_type(thr, array, ElementTag); \ 1706 ASSERT_OOPS_ALLOWED; \ 1707 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 1708 ) \ 1709 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \ 1710 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \ 1711 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \ 1712 functionExit(thr); \ 1713 JNI_END 1714 1715 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool) 1716 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte) 1717 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short) 1718 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char) 1719 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int) 1720 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long) 1721 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float) 1722 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double) 1723 1724 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \ 1725 JNI_ENTRY_CHECKED(void, \ 1726 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \ 1727 ElementType##Array array, \ 1728 jsize start, \ 1729 jsize len, \ 1730 ElementType *buf)) \ 1731 functionEnter(thr); \ 1732 IN_VM( \ 1733 check_primitive_array_type(thr, array, ElementTag); \ 1734 ) \ 1735 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \ 1736 thr->set_pending_jni_exception_check("Get"#Result"ArrayRegion"); \ 1737 functionExit(thr); \ 1738 JNI_END 1739 1740 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean) 1741 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte) 1742 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short) 1743 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char) 1744 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int) 1745 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long) 1746 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float) 1747 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double) 1748 1749 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \ 1750 JNI_ENTRY_CHECKED(void, \ 1751 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \ 1752 ElementType##Array array, \ 1753 jsize start, \ 1754 jsize len, \ 1755 const ElementType *buf)) \ 1756 functionEnter(thr); \ 1757 IN_VM( \ 1758 check_primitive_array_type(thr, array, ElementTag); \ 1759 ) \ 1760 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \ 1761 thr->set_pending_jni_exception_check("Set"#Result"ArrayRegion"); \ 1762 functionExit(thr); \ 1763 JNI_END 1764 1765 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean) 1766 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte) 1767 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short) 1768 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char) 1769 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int) 1770 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long) 1771 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float) 1772 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double) 1773 1774 JNI_ENTRY_CHECKED(jint, 1775 checked_jni_RegisterNatives(JNIEnv *env, 1776 jclass clazz, 1777 const JNINativeMethod *methods, 1778 jint nMethods)) 1779 functionEnter(thr); 1780 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods); 1781 functionExit(thr); 1782 return result; 1783 JNI_END 1784 1785 JNI_ENTRY_CHECKED(jint, 1786 checked_jni_UnregisterNatives(JNIEnv *env, 1787 jclass clazz)) 1788 functionEnter(thr); 1789 jint result = UNCHECKED()->UnregisterNatives(env,clazz); 1790 functionExit(thr); 1791 return result; 1792 JNI_END 1793 1794 JNI_ENTRY_CHECKED(jint, 1795 checked_jni_MonitorEnter(JNIEnv *env, 1796 jobject obj)) 1797 functionEnter(thr); 1798 IN_VM( 1799 jniCheck::validate_object(thr, obj); 1800 ) 1801 jint result = UNCHECKED()->MonitorEnter(env,obj); 1802 functionExit(thr); 1803 return result; 1804 JNI_END 1805 1806 JNI_ENTRY_CHECKED(jint, 1807 checked_jni_MonitorExit(JNIEnv *env, 1808 jobject obj)) 1809 functionEnterExceptionAllowed(thr); 1810 IN_VM( 1811 jniCheck::validate_object(thr, obj); 1812 ) 1813 jint result = UNCHECKED()->MonitorExit(env,obj); 1814 functionExit(thr); 1815 return result; 1816 JNI_END 1817 1818 JNI_ENTRY_CHECKED(jint, 1819 checked_jni_GetJavaVM(JNIEnv *env, 1820 JavaVM **vm)) 1821 functionEnter(thr); 1822 jint result = UNCHECKED()->GetJavaVM(env,vm); 1823 functionExit(thr); 1824 return result; 1825 JNI_END 1826 1827 JNI_ENTRY_CHECKED(void, 1828 checked_jni_GetStringRegion(JNIEnv *env, 1829 jstring str, 1830 jsize start, 1831 jsize len, 1832 jchar *buf)) 1833 functionEnter(thr); 1834 IN_VM( 1835 checkString(thr, str); 1836 ) 1837 UNCHECKED()->GetStringRegion(env, str, start, len, buf); 1838 thr->set_pending_jni_exception_check("GetStringRegion"); 1839 functionExit(thr); 1840 JNI_END 1841 1842 JNI_ENTRY_CHECKED(void, 1843 checked_jni_GetStringUTFRegion(JNIEnv *env, 1844 jstring str, 1845 jsize start, 1846 jsize len, 1847 char *buf)) 1848 functionEnter(thr); 1849 IN_VM( 1850 checkString(thr, str); 1851 ) 1852 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf); 1853 thr->set_pending_jni_exception_check("GetStringUTFRegion"); 1854 functionExit(thr); 1855 JNI_END 1856 1857 JNI_ENTRY_CHECKED(void *, 1858 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env, 1859 jarray array, 1860 jboolean *isCopy)) 1861 functionEnterCritical(thr); 1862 IN_VM( 1863 check_is_primitive_array(thr, array); 1864 ) 1865 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy); 1866 if (result != NULL) { 1867 result = check_jni_wrap_copy_array(thr, array, result); 1868 } 1869 functionExit(thr); 1870 return result; 1871 JNI_END 1872 1873 JNI_ENTRY_CHECKED(void, 1874 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env, 1875 jarray array, 1876 void *carray, 1877 jint mode)) 1878 functionEnterCriticalExceptionAllowed(thr); 1879 IN_VM( 1880 check_is_primitive_array(thr, array); 1881 ) 1882 // Check the element array... 1883 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode); 1884 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode); 1885 functionExit(thr); 1886 JNI_END 1887 1888 JNI_ENTRY_CHECKED(const jchar*, 1889 checked_jni_GetStringCritical(JNIEnv *env, 1890 jstring string, 1891 jboolean *isCopy)) 1892 functionEnterCritical(thr); 1893 IN_VM( 1894 checkString(thr, string); 1895 ) 1896 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy); 1897 functionExit(thr); 1898 return result; 1899 JNI_END 1900 1901 JNI_ENTRY_CHECKED(void, 1902 checked_jni_ReleaseStringCritical(JNIEnv *env, 1903 jstring str, 1904 const jchar *chars)) 1905 functionEnterCriticalExceptionAllowed(thr); 1906 IN_VM( 1907 checkString(thr, str); 1908 ) 1909 /* The Hotspot JNI code does not use the parameters, so just check the 1910 * string parameter as a minor sanity check 1911 */ 1912 UNCHECKED()->ReleaseStringCritical(env, str, chars); 1913 functionExit(thr); 1914 JNI_END 1915 1916 JNI_ENTRY_CHECKED(jweak, 1917 checked_jni_NewWeakGlobalRef(JNIEnv *env, 1918 jobject obj)) 1919 functionEnter(thr); 1920 IN_VM( 1921 if (obj != NULL) { 1922 jniCheck::validate_handle(thr, obj); 1923 } 1924 ) 1925 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj); 1926 functionExit(thr); 1927 return result; 1928 JNI_END 1929 1930 JNI_ENTRY_CHECKED(void, 1931 checked_jni_DeleteWeakGlobalRef(JNIEnv *env, 1932 jweak ref)) 1933 functionEnterExceptionAllowed(thr); 1934 UNCHECKED()->DeleteWeakGlobalRef(env, ref); 1935 functionExit(thr); 1936 JNI_END 1937 1938 JNI_ENTRY_CHECKED(jboolean, 1939 checked_jni_ExceptionCheck(JNIEnv *env)) 1940 thr->clear_pending_jni_exception_check(); 1941 functionEnterExceptionAllowed(thr); 1942 jboolean result = UNCHECKED()->ExceptionCheck(env); 1943 functionExit(thr); 1944 return result; 1945 JNI_END 1946 1947 JNI_ENTRY_CHECKED(jobject, 1948 checked_jni_NewDirectByteBuffer(JNIEnv *env, 1949 void *address, 1950 jlong capacity)) 1951 functionEnter(thr); 1952 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity); 1953 functionExit(thr); 1954 return result; 1955 JNI_END 1956 1957 JNI_ENTRY_CHECKED(void *, 1958 checked_jni_GetDirectBufferAddress(JNIEnv *env, 1959 jobject buf)) 1960 functionEnter(thr); 1961 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf); 1962 functionExit(thr); 1963 return result; 1964 JNI_END 1965 1966 JNI_ENTRY_CHECKED(jlong, 1967 checked_jni_GetDirectBufferCapacity(JNIEnv *env, 1968 jobject buf)) 1969 functionEnter(thr); 1970 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf); 1971 functionExit(thr); 1972 return result; 1973 JNI_END 1974 1975 JNI_ENTRY_CHECKED(jobjectRefType, 1976 checked_jni_GetObjectRefType(JNIEnv *env, 1977 jobject obj)) 1978 functionEnter(thr); 1979 /* validate the object being passed */ 1980 IN_VM( 1981 jniCheck::validate_object(thr, obj); 1982 ) 1983 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj); 1984 functionExit(thr); 1985 return result; 1986 JNI_END 1987 1988 1989 JNI_ENTRY_CHECKED(jint, 1990 checked_jni_GetVersion(JNIEnv *env)) 1991 functionEnter(thr); 1992 jint result = UNCHECKED()->GetVersion(env); 1993 functionExit(thr); 1994 return result; 1995 JNI_END 1996 1997 1998 1999 /* 2000 * Structure containing all checked jni functions 2001 */ 2002 struct JNINativeInterface_ checked_jni_NativeInterface = { 2003 NULL, 2004 NULL, 2005 NULL, 2006 2007 NULL, 2008 2009 checked_jni_GetVersion, 2010 2011 checked_jni_DefineClass, 2012 checked_jni_FindClass, 2013 2014 checked_jni_FromReflectedMethod, 2015 checked_jni_FromReflectedField, 2016 2017 checked_jni_ToReflectedMethod, 2018 2019 checked_jni_GetSuperclass, 2020 checked_jni_IsAssignableFrom, 2021 2022 checked_jni_ToReflectedField, 2023 2024 checked_jni_Throw, 2025 checked_jni_ThrowNew, 2026 checked_jni_ExceptionOccurred, 2027 checked_jni_ExceptionDescribe, 2028 checked_jni_ExceptionClear, 2029 checked_jni_FatalError, 2030 2031 checked_jni_PushLocalFrame, 2032 checked_jni_PopLocalFrame, 2033 2034 checked_jni_NewGlobalRef, 2035 checked_jni_DeleteGlobalRef, 2036 checked_jni_DeleteLocalRef, 2037 checked_jni_IsSameObject, 2038 2039 checked_jni_NewLocalRef, 2040 checked_jni_EnsureLocalCapacity, 2041 2042 checked_jni_AllocObject, 2043 checked_jni_NewObject, 2044 checked_jni_NewObjectV, 2045 checked_jni_NewObjectA, 2046 2047 checked_jni_GetObjectClass, 2048 checked_jni_IsInstanceOf, 2049 2050 checked_jni_GetMethodID, 2051 2052 checked_jni_CallObjectMethod, 2053 checked_jni_CallObjectMethodV, 2054 checked_jni_CallObjectMethodA, 2055 checked_jni_CallBooleanMethod, 2056 checked_jni_CallBooleanMethodV, 2057 checked_jni_CallBooleanMethodA, 2058 checked_jni_CallByteMethod, 2059 checked_jni_CallByteMethodV, 2060 checked_jni_CallByteMethodA, 2061 checked_jni_CallCharMethod, 2062 checked_jni_CallCharMethodV, 2063 checked_jni_CallCharMethodA, 2064 checked_jni_CallShortMethod, 2065 checked_jni_CallShortMethodV, 2066 checked_jni_CallShortMethodA, 2067 checked_jni_CallIntMethod, 2068 checked_jni_CallIntMethodV, 2069 checked_jni_CallIntMethodA, 2070 checked_jni_CallLongMethod, 2071 checked_jni_CallLongMethodV, 2072 checked_jni_CallLongMethodA, 2073 checked_jni_CallFloatMethod, 2074 checked_jni_CallFloatMethodV, 2075 checked_jni_CallFloatMethodA, 2076 checked_jni_CallDoubleMethod, 2077 checked_jni_CallDoubleMethodV, 2078 checked_jni_CallDoubleMethodA, 2079 checked_jni_CallVoidMethod, 2080 checked_jni_CallVoidMethodV, 2081 checked_jni_CallVoidMethodA, 2082 2083 checked_jni_CallNonvirtualObjectMethod, 2084 checked_jni_CallNonvirtualObjectMethodV, 2085 checked_jni_CallNonvirtualObjectMethodA, 2086 checked_jni_CallNonvirtualBooleanMethod, 2087 checked_jni_CallNonvirtualBooleanMethodV, 2088 checked_jni_CallNonvirtualBooleanMethodA, 2089 checked_jni_CallNonvirtualByteMethod, 2090 checked_jni_CallNonvirtualByteMethodV, 2091 checked_jni_CallNonvirtualByteMethodA, 2092 checked_jni_CallNonvirtualCharMethod, 2093 checked_jni_CallNonvirtualCharMethodV, 2094 checked_jni_CallNonvirtualCharMethodA, 2095 checked_jni_CallNonvirtualShortMethod, 2096 checked_jni_CallNonvirtualShortMethodV, 2097 checked_jni_CallNonvirtualShortMethodA, 2098 checked_jni_CallNonvirtualIntMethod, 2099 checked_jni_CallNonvirtualIntMethodV, 2100 checked_jni_CallNonvirtualIntMethodA, 2101 checked_jni_CallNonvirtualLongMethod, 2102 checked_jni_CallNonvirtualLongMethodV, 2103 checked_jni_CallNonvirtualLongMethodA, 2104 checked_jni_CallNonvirtualFloatMethod, 2105 checked_jni_CallNonvirtualFloatMethodV, 2106 checked_jni_CallNonvirtualFloatMethodA, 2107 checked_jni_CallNonvirtualDoubleMethod, 2108 checked_jni_CallNonvirtualDoubleMethodV, 2109 checked_jni_CallNonvirtualDoubleMethodA, 2110 checked_jni_CallNonvirtualVoidMethod, 2111 checked_jni_CallNonvirtualVoidMethodV, 2112 checked_jni_CallNonvirtualVoidMethodA, 2113 2114 checked_jni_GetFieldID, 2115 2116 checked_jni_GetObjectField, 2117 checked_jni_GetBooleanField, 2118 checked_jni_GetByteField, 2119 checked_jni_GetCharField, 2120 checked_jni_GetShortField, 2121 checked_jni_GetIntField, 2122 checked_jni_GetLongField, 2123 checked_jni_GetFloatField, 2124 checked_jni_GetDoubleField, 2125 2126 checked_jni_SetObjectField, 2127 checked_jni_SetBooleanField, 2128 checked_jni_SetByteField, 2129 checked_jni_SetCharField, 2130 checked_jni_SetShortField, 2131 checked_jni_SetIntField, 2132 checked_jni_SetLongField, 2133 checked_jni_SetFloatField, 2134 checked_jni_SetDoubleField, 2135 2136 checked_jni_GetStaticMethodID, 2137 2138 checked_jni_CallStaticObjectMethod, 2139 checked_jni_CallStaticObjectMethodV, 2140 checked_jni_CallStaticObjectMethodA, 2141 checked_jni_CallStaticBooleanMethod, 2142 checked_jni_CallStaticBooleanMethodV, 2143 checked_jni_CallStaticBooleanMethodA, 2144 checked_jni_CallStaticByteMethod, 2145 checked_jni_CallStaticByteMethodV, 2146 checked_jni_CallStaticByteMethodA, 2147 checked_jni_CallStaticCharMethod, 2148 checked_jni_CallStaticCharMethodV, 2149 checked_jni_CallStaticCharMethodA, 2150 checked_jni_CallStaticShortMethod, 2151 checked_jni_CallStaticShortMethodV, 2152 checked_jni_CallStaticShortMethodA, 2153 checked_jni_CallStaticIntMethod, 2154 checked_jni_CallStaticIntMethodV, 2155 checked_jni_CallStaticIntMethodA, 2156 checked_jni_CallStaticLongMethod, 2157 checked_jni_CallStaticLongMethodV, 2158 checked_jni_CallStaticLongMethodA, 2159 checked_jni_CallStaticFloatMethod, 2160 checked_jni_CallStaticFloatMethodV, 2161 checked_jni_CallStaticFloatMethodA, 2162 checked_jni_CallStaticDoubleMethod, 2163 checked_jni_CallStaticDoubleMethodV, 2164 checked_jni_CallStaticDoubleMethodA, 2165 checked_jni_CallStaticVoidMethod, 2166 checked_jni_CallStaticVoidMethodV, 2167 checked_jni_CallStaticVoidMethodA, 2168 2169 checked_jni_GetStaticFieldID, 2170 2171 checked_jni_GetStaticObjectField, 2172 checked_jni_GetStaticBooleanField, 2173 checked_jni_GetStaticByteField, 2174 checked_jni_GetStaticCharField, 2175 checked_jni_GetStaticShortField, 2176 checked_jni_GetStaticIntField, 2177 checked_jni_GetStaticLongField, 2178 checked_jni_GetStaticFloatField, 2179 checked_jni_GetStaticDoubleField, 2180 2181 checked_jni_SetStaticObjectField, 2182 checked_jni_SetStaticBooleanField, 2183 checked_jni_SetStaticByteField, 2184 checked_jni_SetStaticCharField, 2185 checked_jni_SetStaticShortField, 2186 checked_jni_SetStaticIntField, 2187 checked_jni_SetStaticLongField, 2188 checked_jni_SetStaticFloatField, 2189 checked_jni_SetStaticDoubleField, 2190 2191 checked_jni_NewString, 2192 checked_jni_GetStringLength, 2193 checked_jni_GetStringChars, 2194 checked_jni_ReleaseStringChars, 2195 2196 checked_jni_NewStringUTF, 2197 checked_jni_GetStringUTFLength, 2198 checked_jni_GetStringUTFChars, 2199 checked_jni_ReleaseStringUTFChars, 2200 2201 checked_jni_GetArrayLength, 2202 2203 checked_jni_NewObjectArray, 2204 checked_jni_GetObjectArrayElement, 2205 checked_jni_SetObjectArrayElement, 2206 2207 checked_jni_NewBooleanArray, 2208 checked_jni_NewByteArray, 2209 checked_jni_NewCharArray, 2210 checked_jni_NewShortArray, 2211 checked_jni_NewIntArray, 2212 checked_jni_NewLongArray, 2213 checked_jni_NewFloatArray, 2214 checked_jni_NewDoubleArray, 2215 2216 checked_jni_GetBooleanArrayElements, 2217 checked_jni_GetByteArrayElements, 2218 checked_jni_GetCharArrayElements, 2219 checked_jni_GetShortArrayElements, 2220 checked_jni_GetIntArrayElements, 2221 checked_jni_GetLongArrayElements, 2222 checked_jni_GetFloatArrayElements, 2223 checked_jni_GetDoubleArrayElements, 2224 2225 checked_jni_ReleaseBooleanArrayElements, 2226 checked_jni_ReleaseByteArrayElements, 2227 checked_jni_ReleaseCharArrayElements, 2228 checked_jni_ReleaseShortArrayElements, 2229 checked_jni_ReleaseIntArrayElements, 2230 checked_jni_ReleaseLongArrayElements, 2231 checked_jni_ReleaseFloatArrayElements, 2232 checked_jni_ReleaseDoubleArrayElements, 2233 2234 checked_jni_GetBooleanArrayRegion, 2235 checked_jni_GetByteArrayRegion, 2236 checked_jni_GetCharArrayRegion, 2237 checked_jni_GetShortArrayRegion, 2238 checked_jni_GetIntArrayRegion, 2239 checked_jni_GetLongArrayRegion, 2240 checked_jni_GetFloatArrayRegion, 2241 checked_jni_GetDoubleArrayRegion, 2242 2243 checked_jni_SetBooleanArrayRegion, 2244 checked_jni_SetByteArrayRegion, 2245 checked_jni_SetCharArrayRegion, 2246 checked_jni_SetShortArrayRegion, 2247 checked_jni_SetIntArrayRegion, 2248 checked_jni_SetLongArrayRegion, 2249 checked_jni_SetFloatArrayRegion, 2250 checked_jni_SetDoubleArrayRegion, 2251 2252 checked_jni_RegisterNatives, 2253 checked_jni_UnregisterNatives, 2254 2255 checked_jni_MonitorEnter, 2256 checked_jni_MonitorExit, 2257 2258 checked_jni_GetJavaVM, 2259 2260 checked_jni_GetStringRegion, 2261 checked_jni_GetStringUTFRegion, 2262 2263 checked_jni_GetPrimitiveArrayCritical, 2264 checked_jni_ReleasePrimitiveArrayCritical, 2265 2266 checked_jni_GetStringCritical, 2267 checked_jni_ReleaseStringCritical, 2268 2269 checked_jni_NewWeakGlobalRef, 2270 checked_jni_DeleteWeakGlobalRef, 2271 2272 checked_jni_ExceptionCheck, 2273 2274 checked_jni_NewDirectByteBuffer, 2275 checked_jni_GetDirectBufferAddress, 2276 checked_jni_GetDirectBufferCapacity, 2277 2278 // New 1.6 Features 2279 2280 checked_jni_GetObjectRefType 2281 }; 2282 2283 2284 // Returns the function structure 2285 struct JNINativeInterface_* jni_functions_check() { 2286 2287 unchecked_jni_NativeInterface = jni_functions_nocheck(); 2288 2289 // make sure the last pointer in the checked table is not null, indicating 2290 // an addition to the JNINativeInterface_ structure without initializing 2291 // it in the checked table. 2292 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \ 2293 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));) 2294 assert(*lastPtr != 0, 2295 "Mismatched JNINativeInterface tables, check for new entries"); 2296 2297 // with -verbose:jni this message will print 2298 if (PrintJNIResolving) { 2299 tty->print_cr("Checked JNI functions are being used to " \ 2300 "validate JNI usage"); 2301 } 2302 2303 return &checked_jni_NativeInterface; 2304 }