1/* 2 * Copyright (c) 2001, 2017, 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.h" 36#include "prims/jvm_misc.hpp" 37#include "runtime/fieldDescriptor.hpp" 38#include "runtime/handles.hpp" 39#include "runtime/interfaceSupport.hpp" 40#include "runtime/jfieldIDWorkaround.hpp" 41#include "runtime/thread.inline.hpp" 42 43// Complain every extra number of unplanned local refs 44#define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32 45 46// Heap objects are allowed to be directly referenced only in VM code, 47// not in native code. 48 49#define ASSERT_OOPS_ALLOWED \ 50 assert(JavaThread::current()->thread_state() == _thread_in_vm, \ 51 "jniCheck examining oops in bad state.") 52 53 54// Execute the given block of source code with the thread in VM state. 55// To do this, transition from the NATIVE state to the VM state, execute 56// the code, and transtition back. The ThreadInVMfromNative constructor 57// performs the transition to VM state, its destructor restores the 58// NATIVE state. 59 60#define IN_VM(source_code) { \ 61 { \ 62 ThreadInVMfromNative __tiv(thr); \ 63 source_code \ 64 } \ 65 } 66 67 68/* 69 * DECLARATIONS 70 */ 71 72static struct JNINativeInterface_ * unchecked_jni_NativeInterface; 73 74 75/* 76 * MACRO DEFINITIONS 77 */ 78 79// All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the 80// QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles 81// to be created if a fatal error should occur. 82 83// Check for thread not attached to VM; need to catch this before 84// assertions in the wrapper routines might fire 85 86// Check for env being the one value appropriate for this thread. 87 88#define JNI_ENTRY_CHECKED(result_type, header) \ 89extern "C" { \ 90 result_type JNICALL header { \ 91 JavaThread* thr = (JavaThread*) Thread::current_or_null(); \ 92 if (thr == NULL || !thr->is_Java_thread()) { \ 93 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \ 94 os::abort(true); \ 95 } \ 96 JNIEnv* xenv = thr->jni_environment(); \ 97 if (env != xenv) { \ 98 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \ 99 } \ 100 VM_ENTRY_BASE(result_type, header, thr) 101 102 103#define UNCHECKED() (unchecked_jni_NativeInterface) 104 105static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread"; 106static const char * warn_bad_class_descriptor1 = "JNI FindClass received a bad class descriptor \""; 107static const char * warn_bad_class_descriptor2 = "\". A correct class descriptor " \ 108 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases."; 109static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread"; 110static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \ 111 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical"; 112static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI"; 113static const char * fatal_received_null_class = "JNI received a null class"; 114static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class"; 115static const char * fatal_class_not_a_throwable_class = "JNI Throw or ThrowNew received a class argument that is not a Throwable or Throwable subclass"; 116static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call"; 117static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call"; 118static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations"; 119static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation"; 120static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation"; 121static const char * fatal_non_array = "Non-array passed to JNI array operations"; 122static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI"; 123static const char * fatal_should_be_static = "Non-static field ID passed to JNI"; 124static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI"; 125static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations"; 126static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations"; 127static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI"; 128static const char * fatal_null_object = "Null object passed to JNI"; 129static const char * fatal_wrong_field = "Wrong field ID passed to JNI"; 130static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations"; 131static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations"; 132static const char * fatal_non_string = "JNI string operation received a non-string"; 133 134 135// When in VM state: 136static void ReportJNIWarning(JavaThread* thr, const char *msg) { 137 tty->print_cr("WARNING in native method: %s", msg); 138 thr->print_stack(); 139} 140 141// When in NATIVE state: 142static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) { 143 IN_VM( 144 ReportJNIFatalError(thr, msg); 145 ) 146} 147 148static void NativeReportJNIWarning(JavaThread* thr, const char *msg) { 149 IN_VM( 150 ReportJNIWarning(thr, msg); 151 ) 152} 153 154 155 156 157/* 158 * SUPPORT FUNCTIONS 159 */ 160 161/** 162 * Check whether or not a programmer has actually checked for exceptions. According 163 * to the JNI Specification ("jni/spec/design.html#java_exceptions"): 164 * 165 * There are two cases where the programmer needs to check for exceptions without 166 * being able to first check an error code: 167 * 168 * - The JNI functions that invoke a Java method return the result of the Java method. 169 * The programmer must call ExceptionOccurred() to check for possible exceptions 170 * that occurred during the execution of the Java method. 171 * 172 * - Some of the JNI array access functions do not return an error code, but may 173 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException. 174 * 175 * In all other cases, a non-error return value guarantees that no exceptions have been thrown. 176 * 177 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning 178 * for these functions would be pedantic. 179 */ 180static inline void 181check_pending_exception(JavaThread* thr) { 182 if (thr->has_pending_exception()) { 183 NativeReportJNIWarning(thr, "JNI call made with exception pending"); 184 } 185 if (thr->is_pending_jni_exception_check()) { 186 IN_VM( 187 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s", 188 thr->get_pending_jni_exception_check()); 189 thr->print_stack(); 190 ) 191 thr->clear_pending_jni_exception_check(); // Just complain once 192 } 193} 194 195/** 196 * Add to the planned number of handles. I.e. plus current live & warning threshold 197 */ 198static inline void 199add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) { 200 handles->set_planned_capacity(capacity + 201 handles->get_number_of_live_handles() + 202 CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD); 203} 204 205 206static inline void 207functionEnterCritical(JavaThread* thr) 208{ 209 check_pending_exception(thr); 210} 211 212static inline void 213functionEnterCriticalExceptionAllowed(JavaThread* thr) 214{ 215} 216 217static inline void 218functionEnter(JavaThread* thr) 219{ 220 if (thr->in_critical()) { 221 tty->print_cr("%s", warn_other_function_in_critical); 222 } 223 check_pending_exception(thr); 224} 225 226static inline void 227functionEnterExceptionAllowed(JavaThread* thr) 228{ 229 if (thr->in_critical()) { 230 tty->print_cr("%s", warn_other_function_in_critical); 231 } 232} 233 234static inline void 235functionExit(JavaThread* thr) 236{ 237 JNIHandleBlock* handles = thr->active_handles(); 238 size_t planned_capacity = handles->get_planned_capacity(); 239 size_t live_handles = handles->get_number_of_live_handles(); 240 if (live_handles > planned_capacity) { 241 IN_VM( 242 tty->print_cr("WARNING: JNI local refs: " SIZE_FORMAT ", exceeds capacity: " SIZE_FORMAT, 243 live_handles, planned_capacity); 244 thr->print_stack(); 245 ) 246 // Complain just the once, reset to current + warn threshold 247 add_planned_handle_capacity(handles, 0); 248 } 249} 250 251static inline void 252checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype) 253{ 254 fieldDescriptor fd; 255 256 /* make sure it is a static field */ 257 if (!jfieldIDWorkaround::is_static_jfieldID(fid)) 258 ReportJNIFatalError(thr, fatal_should_be_static); 259 260 /* validate the class being passed */ 261 ASSERT_OOPS_ALLOWED; 262 Klass* k_oop = jniCheck::validate_class(thr, cls, false); 263 264 /* check for proper subclass hierarchy */ 265 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid); 266 Klass* f_oop = id->holder(); 267 if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop)) 268 ReportJNIFatalError(thr, fatal_wrong_static_field); 269 270 /* check for proper field type */ 271 if (!id->find_local_field(&fd)) 272 ReportJNIFatalError(thr, fatal_static_field_not_found); 273 if ((fd.field_type() != ftype) && 274 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) { 275 ReportJNIFatalError(thr, fatal_static_field_mismatch); 276 } 277} 278 279static inline void 280checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype) 281{ 282 fieldDescriptor fd; 283 284 /* make sure it is an instance field */ 285 if (jfieldIDWorkaround::is_static_jfieldID(fid)) 286 ReportJNIFatalError(thr, fatal_should_be_nonstatic); 287 288 /* validate the object being passed and then get its class */ 289 ASSERT_OOPS_ALLOWED; 290 oop oopObj = jniCheck::validate_object(thr, obj); 291 if (!oopObj) { 292 ReportJNIFatalError(thr, fatal_null_object); 293 } 294 Klass* k_oop = oopObj->klass(); 295 296 if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) { 297 ReportJNIFatalError(thr, fatal_wrong_field); 298 } 299 300 /* make sure the field exists */ 301 int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid); 302 if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset)) 303 ReportJNIFatalError(thr, fatal_wrong_field); 304 305 /* check for proper field type */ 306 if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset, 307 false, &fd)) 308 ReportJNIFatalError(thr, fatal_instance_field_not_found); 309 310 if ((fd.field_type() != ftype) && 311 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) { 312 ReportJNIFatalError(thr, fatal_instance_field_mismatch); 313 } 314} 315 316static inline void 317checkString(JavaThread* thr, jstring js) 318{ 319 ASSERT_OOPS_ALLOWED; 320 oop s = jniCheck::validate_object(thr, js); 321 if (!s || !java_lang_String::is_instance(s)) 322 ReportJNIFatalError(thr, fatal_non_string); 323} 324 325static inline arrayOop 326check_is_array(JavaThread* thr, jarray jArray) 327{ 328 ASSERT_OOPS_ALLOWED; 329 arrayOop aOop; 330 331 aOop = (arrayOop)jniCheck::validate_object(thr, jArray); 332 if (aOop == NULL || !aOop->is_array()) { 333 ReportJNIFatalError(thr, fatal_non_array); 334 } 335 return aOop; 336} 337 338static inline arrayOop 339check_is_primitive_array(JavaThread* thr, jarray jArray) { 340 arrayOop aOop = check_is_array(thr, jArray); 341 342 if (!aOop->is_typeArray()) { 343 ReportJNIFatalError(thr, fatal_prim_type_array_expected); 344 } 345 return aOop; 346} 347 348static inline void 349check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType) 350{ 351 BasicType array_type; 352 arrayOop aOop; 353 354 aOop = check_is_primitive_array(thr, jArray); 355 array_type = TypeArrayKlass::cast(aOop->klass())->element_type(); 356 if (array_type != elementType) { 357 ReportJNIFatalError(thr, fatal_element_type_mismatch); 358 } 359} 360 361static inline void 362check_is_obj_array(JavaThread* thr, jarray jArray) { 363 arrayOop aOop = check_is_array(thr, jArray); 364 if (!aOop->is_objArray()) { 365 ReportJNIFatalError(thr, fatal_object_array_expected); 366 } 367} 368 369/* 370 * Copy and wrap array elements for bounds checking. 371 * Remember the original elements (GuardedMemory::get_tag()) 372 */ 373static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array, 374 void* orig_elements) { 375 void* result; 376 IN_VM( 377 oop a = JNIHandles::resolve_non_null(array); 378 size_t len = arrayOop(a)->length() << 379 TypeArrayKlass::cast(a->klass())->log2_element_size(); 380 result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements); 381 ) 382 return result; 383} 384 385static void* check_wrapped_array(JavaThread* thr, const char* fn_name, 386 void* obj, void* carray, size_t* rsz) { 387 if (carray == NULL) { 388 tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj)); 389 NativeReportJNIFatalError(thr, "Elements vector NULL"); 390 } 391 GuardedMemory guarded(carray); 392 void* orig_result = guarded.get_tag(); 393 if (!guarded.verify_guards()) { 394 tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds " 395 "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: " 396 PTR_FORMAT, p2i(obj), p2i(carray)); 397 guarded.print_on(tty); 398 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: " 399 "failed bounds check"); 400 } 401 if (orig_result == NULL) { 402 tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: " 403 PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray)); 404 guarded.print_on(tty); 405 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: " 406 "unrecognized elements"); 407 } 408 if (rsz != NULL) { 409 *rsz = guarded.get_user_size(); 410 } 411 return orig_result; 412} 413 414static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name, 415 void* obj, void* carray, jint mode) { 416 size_t sz; 417 void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz); 418 switch (mode) { 419 case 0: 420 memcpy(orig_result, carray, sz); 421 GuardedMemory::free_copy(carray); 422 break; 423 case JNI_COMMIT: 424 memcpy(orig_result, carray, sz); 425 break; 426 case JNI_ABORT: 427 GuardedMemory::free_copy(carray); 428 break; 429 default: 430 tty->print_cr("%s: Unrecognized mode %i releasing array " 431 PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray)); 432 NativeReportJNIFatalError(thr, "Unrecognized array release mode"); 433 } 434 return orig_result; 435} 436 437oop jniCheck::validate_handle(JavaThread* thr, jobject obj) { 438 if (JNIHandles::is_frame_handle(thr, obj) || 439 JNIHandles::is_local_handle(thr, obj) || 440 JNIHandles::is_global_handle(obj) || 441 JNIHandles::is_weak_global_handle(obj)) { 442 ASSERT_OOPS_ALLOWED; 443 return JNIHandles::resolve_external_guard(obj); 444 } 445 ReportJNIFatalError(thr, fatal_bad_ref_to_jni); 446 return NULL; 447} 448 449 450Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) { 451 ASSERT_OOPS_ALLOWED; 452 // do the fast jmethodID check first 453 Method* moop = Method::checked_resolve_jmethod_id(method_id); 454 if (moop == NULL) { 455 ReportJNIFatalError(thr, fatal_wrong_class_or_method); 456 } 457 // jmethodIDs are supposed to be weak handles in the class loader data, 458 // but that can be expensive so check it last 459 else if (!Method::is_method_id(method_id)) { 460 ReportJNIFatalError(thr, fatal_non_weak_method); 461 } 462 return moop; 463} 464 465 466oop jniCheck::validate_object(JavaThread* thr, jobject obj) { 467 if (!obj) 468 return NULL; 469 ASSERT_OOPS_ALLOWED; 470 oop oopObj = jniCheck::validate_handle(thr, obj); 471 if (!oopObj) { 472 ReportJNIFatalError(thr, fatal_bad_ref_to_jni); 473 } 474 return oopObj; 475} 476 477// Warn if a class descriptor is in decorated form; class descriptors 478// passed to JNI findClass should not be decorated unless they are 479// array descriptors. 480void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) { 481 if (name == NULL) return; // implementation accepts NULL so just return 482 483 size_t len = strlen(name); 484 485 if (len >= 2 && 486 name[0] == JVM_SIGNATURE_CLASS && // 'L' 487 name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';' 488 char msg[JVM_MAXPATHLEN]; 489 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s", 490 warn_bad_class_descriptor1, name, warn_bad_class_descriptor2); 491 ReportJNIWarning(thr, msg); 492 } 493} 494 495Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) { 496 ASSERT_OOPS_ALLOWED; 497 oop mirror = jniCheck::validate_handle(thr, clazz); 498 if (!mirror) { 499 ReportJNIFatalError(thr, fatal_received_null_class); 500 } 501 502 if (mirror->klass() != SystemDictionary::Class_klass()) { 503 ReportJNIFatalError(thr, fatal_class_not_a_class); 504 } 505 506 Klass* k = java_lang_Class::as_Klass(mirror); 507 // Make allowances for primitive classes ... 508 if (!(k != NULL || (allow_primitive && java_lang_Class::is_primitive(mirror)))) { 509 ReportJNIFatalError(thr, fatal_class_not_a_class); 510 } 511 return k; 512} 513 514void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) { 515 ASSERT_OOPS_ALLOWED; 516 assert(klass != NULL, "klass argument must have a value"); 517 518 if (!klass->is_instance_klass() || 519 !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) { 520 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class); 521 } 522} 523 524void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) { 525 /* validate the object being passed */ 526 ASSERT_OOPS_ALLOWED; 527 jniCheck::validate_jmethod_id(thr, method_id); 528 jniCheck::validate_object(thr, obj); 529} 530 531void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) { 532 /* validate the class being passed */ 533 ASSERT_OOPS_ALLOWED; 534 jniCheck::validate_jmethod_id(thr, method_id); 535 jniCheck::validate_class(thr, clazz, false); 536} 537 538 539/* 540 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE 541 */ 542 543JNI_ENTRY_CHECKED(jclass, 544 checked_jni_DefineClass(JNIEnv *env, 545 const char *name, 546 jobject loader, 547 const jbyte *buf, 548 jsize len)) 549 functionEnter(thr); 550 IN_VM( 551 jniCheck::validate_object(thr, loader); 552 ) 553 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len); 554 functionExit(thr); 555 return result; 556JNI_END 557 558JNI_ENTRY_CHECKED(jclass, 559 checked_jni_FindClass(JNIEnv *env, 560 const char *name)) 561 functionEnter(thr); 562 IN_VM( 563 jniCheck::validate_class_descriptor(thr, name); 564 ) 565 jclass result = UNCHECKED()->FindClass(env, name); 566 functionExit(thr); 567 return result; 568JNI_END 569 570JNI_ENTRY_CHECKED(jmethodID, 571 checked_jni_FromReflectedMethod(JNIEnv *env, 572 jobject method)) 573 functionEnter(thr); 574 IN_VM( 575 jniCheck::validate_object(thr, method); 576 ) 577 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method); 578 functionExit(thr); 579 return result; 580JNI_END 581 582JNI_ENTRY_CHECKED(jfieldID, 583 checked_jni_FromReflectedField(JNIEnv *env, 584 jobject field)) 585 functionEnter(thr); 586 IN_VM( 587 jniCheck::validate_object(thr, field); 588 ) 589 jfieldID result = UNCHECKED()->FromReflectedField(env, field); 590 functionExit(thr); 591 return result; 592JNI_END 593 594JNI_ENTRY_CHECKED(jobject, 595 checked_jni_ToReflectedMethod(JNIEnv *env, 596 jclass cls, 597 jmethodID methodID, 598 jboolean isStatic)) 599 functionEnter(thr); 600 IN_VM( 601 jniCheck::validate_class(thr, cls, false); 602 jniCheck::validate_jmethod_id(thr, methodID); 603 ) 604 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID, 605 isStatic); 606 functionExit(thr); 607 return result; 608JNI_END 609 610JNI_ENTRY_CHECKED(jclass, 611 checked_jni_GetSuperclass(JNIEnv *env, 612 jclass sub)) 613 functionEnter(thr); 614 IN_VM( 615 jniCheck::validate_class(thr, sub, true); 616 ) 617 jclass result = UNCHECKED()->GetSuperclass(env, sub); 618 functionExit(thr); 619 return result; 620JNI_END 621 622JNI_ENTRY_CHECKED(jboolean, 623 checked_jni_IsAssignableFrom(JNIEnv *env, 624 jclass sub, 625 jclass sup)) 626 functionEnter(thr); 627 IN_VM( 628 jniCheck::validate_class(thr, sub, true); 629 jniCheck::validate_class(thr, sup, true); 630 ) 631 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup); 632 functionExit(thr); 633 return result; 634JNI_END 635 636JNI_ENTRY_CHECKED(jobject, 637 checked_jni_ToReflectedField(JNIEnv *env, 638 jclass cls, 639 jfieldID fieldID, 640 jboolean isStatic)) 641 functionEnter(thr); 642 IN_VM( 643 jniCheck::validate_class(thr, cls, false); 644 ) 645 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID, 646 isStatic); 647 functionExit(thr); 648 return result; 649JNI_END 650 651JNI_ENTRY_CHECKED(jint, 652 checked_jni_Throw(JNIEnv *env, 653 jthrowable obj)) 654 functionEnter(thr); 655 IN_VM( 656 oop oopObj = jniCheck::validate_object(thr, obj); 657 if (oopObj == NULL) { 658 // Unchecked Throw tolerates a NULL obj, so just warn 659 ReportJNIWarning(thr, "JNI Throw called with NULL throwable"); 660 } else { 661 jniCheck::validate_throwable_klass(thr, oopObj->klass()); 662 } 663 ) 664 jint result = UNCHECKED()->Throw(env, obj); 665 functionExit(thr); 666 return result; 667JNI_END 668 669JNI_ENTRY_CHECKED(jint, 670 checked_jni_ThrowNew(JNIEnv *env, 671 jclass clazz, 672 const char *msg)) 673 functionEnter(thr); 674 IN_VM( 675 Klass* k = jniCheck::validate_class(thr, clazz, false); 676 assert(k != NULL, "validate_class shouldn't return NULL Klass*"); 677 jniCheck::validate_throwable_klass(thr, k); 678 ) 679 jint result = UNCHECKED()->ThrowNew(env, clazz, msg); 680 functionExit(thr); 681 return result; 682JNI_END 683 684JNI_ENTRY_CHECKED(jthrowable, 685 checked_jni_ExceptionOccurred(JNIEnv *env)) 686 thr->clear_pending_jni_exception_check(); 687 functionEnterExceptionAllowed(thr); 688 jthrowable result = UNCHECKED()->ExceptionOccurred(env); 689 functionExit(thr); 690 return result; 691JNI_END 692 693JNI_ENTRY_CHECKED(void, 694 checked_jni_ExceptionDescribe(JNIEnv *env)) 695 functionEnterExceptionAllowed(thr); 696 UNCHECKED()->ExceptionDescribe(env); 697 functionExit(thr); 698JNI_END 699 700JNI_ENTRY_CHECKED(void, 701 checked_jni_ExceptionClear(JNIEnv *env)) 702 thr->clear_pending_jni_exception_check(); 703 functionEnterExceptionAllowed(thr); 704 UNCHECKED()->ExceptionClear(env); 705 functionExit(thr); 706JNI_END 707 708JNI_ENTRY_CHECKED(void, 709 checked_jni_FatalError(JNIEnv *env, 710 const char *msg)) 711 thr->clear_pending_jni_exception_check(); 712 functionEnter(thr); 713 UNCHECKED()->FatalError(env, msg); 714 functionExit(thr); 715JNI_END 716 717JNI_ENTRY_CHECKED(jint, 718 checked_jni_PushLocalFrame(JNIEnv *env, 719 jint capacity)) 720 functionEnterExceptionAllowed(thr); 721 if (capacity < 0) 722 NativeReportJNIFatalError(thr, "negative capacity"); 723 jint result = UNCHECKED()->PushLocalFrame(env, capacity); 724 if (result == JNI_OK) { 725 add_planned_handle_capacity(thr->active_handles(), capacity); 726 } 727 functionExit(thr); 728 return result; 729JNI_END 730 731JNI_ENTRY_CHECKED(jobject, 732 checked_jni_PopLocalFrame(JNIEnv *env, 733 jobject result)) 734 functionEnterExceptionAllowed(thr); 735 jobject res = UNCHECKED()->PopLocalFrame(env, result); 736 functionExit(thr); 737 return res; 738JNI_END 739 740JNI_ENTRY_CHECKED(jobject, 741 checked_jni_NewGlobalRef(JNIEnv *env, 742 jobject lobj)) 743 functionEnter(thr); 744 IN_VM( 745 if (lobj != NULL) { 746 jniCheck::validate_handle(thr, lobj); 747 } 748 ) 749 jobject result = UNCHECKED()->NewGlobalRef(env,lobj); 750 functionExit(thr); 751 return result; 752JNI_END 753 754JNI_ENTRY_CHECKED(void, 755 checked_jni_DeleteGlobalRef(JNIEnv *env, 756 jobject gref)) 757 functionEnterExceptionAllowed(thr); 758 IN_VM( 759 jniCheck::validate_object(thr, gref); 760 if (gref && !JNIHandles::is_global_handle(gref)) { 761 ReportJNIFatalError(thr, 762 "Invalid global JNI handle passed to DeleteGlobalRef"); 763 } 764 ) 765 UNCHECKED()->DeleteGlobalRef(env,gref); 766 functionExit(thr); 767JNI_END 768 769JNI_ENTRY_CHECKED(void, 770 checked_jni_DeleteLocalRef(JNIEnv *env, 771 jobject obj)) 772 functionEnterExceptionAllowed(thr); 773 IN_VM( 774 jniCheck::validate_object(thr, obj); 775 if (obj && !(JNIHandles::is_local_handle(thr, obj) || 776 JNIHandles::is_frame_handle(thr, obj))) 777 ReportJNIFatalError(thr, 778 "Invalid local JNI handle passed to DeleteLocalRef"); 779 ) 780 UNCHECKED()->DeleteLocalRef(env, obj); 781 functionExit(thr); 782JNI_END 783 784JNI_ENTRY_CHECKED(jboolean, 785 checked_jni_IsSameObject(JNIEnv *env, 786 jobject obj1, 787 jobject obj2)) 788 functionEnterExceptionAllowed(thr); 789 IN_VM( 790 /* This JNI function can be used to compare weak global references 791 * to NULL objects. If the handles are valid, but contain NULL, 792 * then don't attempt to validate the object. 793 */ 794 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) { 795 jniCheck::validate_object(thr, obj1); 796 } 797 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) { 798 jniCheck::validate_object(thr, obj2); 799 } 800 ) 801 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2); 802 functionExit(thr); 803 return result; 804JNI_END 805 806JNI_ENTRY_CHECKED(jobject, 807 checked_jni_NewLocalRef(JNIEnv *env, 808 jobject ref)) 809 functionEnter(thr); 810 IN_VM( 811 if (ref != NULL) { 812 jniCheck::validate_handle(thr, ref); 813 } 814 ) 815 jobject result = UNCHECKED()->NewLocalRef(env, ref); 816 functionExit(thr); 817 return result; 818JNI_END 819 820JNI_ENTRY_CHECKED(jint, 821 checked_jni_EnsureLocalCapacity(JNIEnv *env, 822 jint capacity)) 823 functionEnter(thr); 824 if (capacity < 0) { 825 NativeReportJNIFatalError(thr, "negative capacity"); 826 } 827 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity); 828 if (result == JNI_OK) { 829 add_planned_handle_capacity(thr->active_handles(), capacity); 830 } 831 functionExit(thr); 832 return result; 833JNI_END 834 835JNI_ENTRY_CHECKED(jobject, 836 checked_jni_AllocObject(JNIEnv *env, 837 jclass clazz)) 838 functionEnter(thr); 839 IN_VM( 840 jniCheck::validate_class(thr, clazz, false); 841 ) 842 jobject result = UNCHECKED()->AllocObject(env,clazz); 843 functionExit(thr); 844 return result; 845JNI_END 846 847JNI_ENTRY_CHECKED(jobject, 848 checked_jni_NewObject(JNIEnv *env, 849 jclass clazz, 850 jmethodID methodID, 851 ...)) 852 functionEnter(thr); 853 va_list args; 854 IN_VM( 855 jniCheck::validate_class(thr, clazz, false); 856 jniCheck::validate_jmethod_id(thr, methodID); 857 ) 858 va_start(args, methodID); 859 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args); 860 va_end(args); 861 functionExit(thr); 862 return result; 863JNI_END 864 865JNI_ENTRY_CHECKED(jobject, 866 checked_jni_NewObjectV(JNIEnv *env, 867 jclass clazz, 868 jmethodID methodID, 869 va_list args)) 870 functionEnter(thr); 871 IN_VM( 872 jniCheck::validate_class(thr, clazz, false); 873 jniCheck::validate_jmethod_id(thr, methodID); 874 ) 875 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args); 876 functionExit(thr); 877 return result; 878JNI_END 879 880JNI_ENTRY_CHECKED(jobject, 881 checked_jni_NewObjectA(JNIEnv *env, 882 jclass clazz, 883 jmethodID methodID, 884 const jvalue *args)) 885 functionEnter(thr); 886 IN_VM( 887 jniCheck::validate_class(thr, clazz, false); 888 jniCheck::validate_jmethod_id(thr, methodID); 889 ) 890 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args); 891 functionExit(thr); 892 return result; 893JNI_END 894 895JNI_ENTRY_CHECKED(jclass, 896 checked_jni_GetObjectClass(JNIEnv *env, 897 jobject obj)) 898 functionEnter(thr); 899 IN_VM( 900 jniCheck::validate_object(thr, obj); 901 ) 902 jclass result = UNCHECKED()->GetObjectClass(env,obj); 903 functionExit(thr); 904 return result; 905JNI_END 906 907JNI_ENTRY_CHECKED(jboolean, 908 checked_jni_IsInstanceOf(JNIEnv *env, 909 jobject obj, 910 jclass clazz)) 911 functionEnter(thr); 912 IN_VM( 913 jniCheck::validate_object(thr, obj); 914 jniCheck::validate_class(thr, clazz, true); 915 ) 916 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz); 917 functionExit(thr); 918 return result; 919JNI_END 920 921JNI_ENTRY_CHECKED(jmethodID, 922 checked_jni_GetMethodID(JNIEnv *env, 923 jclass clazz, 924 const char *name, 925 const char *sig)) 926 functionEnter(thr); 927 IN_VM( 928 jniCheck::validate_class(thr, clazz, false); 929 ) 930 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig); 931 functionExit(thr); 932 return result; 933JNI_END 934 935#define WRAPPER_CallMethod(ResultType, Result) \ 936JNI_ENTRY_CHECKED(ResultType, \ 937 checked_jni_Call##Result##Method(JNIEnv *env, \ 938 jobject obj, \ 939 jmethodID methodID, \ 940 ...)) \ 941 functionEnter(thr); \ 942 va_list args; \ 943 IN_VM( \ 944 jniCheck::validate_call_object(thr, obj, methodID); \ 945 ) \ 946 va_start(args,methodID); \ 947 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \ 948 args); \ 949 va_end(args); \ 950 thr->set_pending_jni_exception_check("Call"#Result"Method"); \ 951 functionExit(thr); \ 952 return result; \ 953JNI_END \ 954\ 955JNI_ENTRY_CHECKED(ResultType, \ 956 checked_jni_Call##Result##MethodV(JNIEnv *env, \ 957 jobject obj, \ 958 jmethodID methodID, \ 959 va_list args)) \ 960 functionEnter(thr); \ 961 IN_VM(\ 962 jniCheck::validate_call_object(thr, obj, methodID); \ 963 ) \ 964 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\ 965 args); \ 966 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \ 967 functionExit(thr); \ 968 return result; \ 969JNI_END \ 970\ 971JNI_ENTRY_CHECKED(ResultType, \ 972 checked_jni_Call##Result##MethodA(JNIEnv *env, \ 973 jobject obj, \ 974 jmethodID methodID, \ 975 const jvalue * args)) \ 976 functionEnter(thr); \ 977 IN_VM( \ 978 jniCheck::validate_call_object(thr, obj, methodID); \ 979 ) \ 980 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\ 981 args); \ 982 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \ 983 functionExit(thr); \ 984 return result; \ 985JNI_END 986 987WRAPPER_CallMethod(jobject,Object) 988WRAPPER_CallMethod(jboolean,Boolean) 989WRAPPER_CallMethod(jbyte,Byte) 990WRAPPER_CallMethod(jshort,Short) 991WRAPPER_CallMethod(jchar,Char) 992WRAPPER_CallMethod(jint,Int) 993WRAPPER_CallMethod(jlong,Long) 994WRAPPER_CallMethod(jfloat,Float) 995WRAPPER_CallMethod(jdouble,Double) 996 997JNI_ENTRY_CHECKED(void, 998 checked_jni_CallVoidMethod(JNIEnv *env, \ 999 jobject obj, \ 1000 jmethodID methodID, \ 1001 ...)) 1002 functionEnter(thr); 1003 va_list args; 1004 IN_VM( 1005 jniCheck::validate_call_object(thr, obj, methodID); 1006 ) 1007 va_start(args,methodID); 1008 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args); 1009 va_end(args); 1010 thr->set_pending_jni_exception_check("CallVoidMethod"); 1011 functionExit(thr); 1012JNI_END 1013 1014JNI_ENTRY_CHECKED(void, 1015 checked_jni_CallVoidMethodV(JNIEnv *env, 1016 jobject obj, 1017 jmethodID methodID, 1018 va_list args)) 1019 functionEnter(thr); 1020 IN_VM( 1021 jniCheck::validate_call_object(thr, obj, methodID); 1022 ) 1023 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args); 1024 thr->set_pending_jni_exception_check("CallVoidMethodV"); 1025 functionExit(thr); 1026JNI_END 1027 1028JNI_ENTRY_CHECKED(void, 1029 checked_jni_CallVoidMethodA(JNIEnv *env, 1030 jobject obj, 1031 jmethodID methodID, 1032 const jvalue * args)) 1033 functionEnter(thr); 1034 IN_VM( 1035 jniCheck::validate_call_object(thr, obj, methodID); 1036 ) 1037 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args); 1038 thr->set_pending_jni_exception_check("CallVoidMethodA"); 1039 functionExit(thr); 1040JNI_END 1041 1042#define WRAPPER_CallNonvirtualMethod(ResultType, Result) \ 1043JNI_ENTRY_CHECKED(ResultType, \ 1044 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \ 1045 jobject obj, \ 1046 jclass clazz, \ 1047 jmethodID methodID, \ 1048 ...)) \ 1049 functionEnter(thr); \ 1050 va_list args; \ 1051 IN_VM( \ 1052 jniCheck::validate_call_object(thr, obj, methodID); \ 1053 jniCheck::validate_call_class(thr, clazz, methodID); \ 1054 ) \ 1055 va_start(args,methodID); \ 1056 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \ 1057 obj, \ 1058 clazz, \ 1059 methodID,\ 1060 args); \ 1061 va_end(args); \ 1062 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \ 1063 functionExit(thr); \ 1064 return result; \ 1065JNI_END \ 1066\ 1067JNI_ENTRY_CHECKED(ResultType, \ 1068 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \ 1069 jobject obj, \ 1070 jclass clazz, \ 1071 jmethodID methodID, \ 1072 va_list args)) \ 1073 functionEnter(thr); \ 1074 IN_VM( \ 1075 jniCheck::validate_call_object(thr, obj, methodID); \ 1076 jniCheck::validate_call_class(thr, clazz, methodID); \ 1077 ) \ 1078 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \ 1079 obj, \ 1080 clazz, \ 1081 methodID,\ 1082 args); \ 1083 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \ 1084 functionExit(thr); \ 1085 return result; \ 1086JNI_END \ 1087\ 1088JNI_ENTRY_CHECKED(ResultType, \ 1089 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \ 1090 jobject obj, \ 1091 jclass clazz, \ 1092 jmethodID methodID, \ 1093 const jvalue * args)) \ 1094 functionEnter(thr); \ 1095 IN_VM( \ 1096 jniCheck::validate_call_object(thr, obj, methodID); \ 1097 jniCheck::validate_call_class(thr, clazz, methodID); \ 1098 ) \ 1099 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \ 1100 obj, \ 1101 clazz, \ 1102 methodID,\ 1103 args); \ 1104 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \ 1105 functionExit(thr); \ 1106 return result; \ 1107JNI_END 1108 1109WRAPPER_CallNonvirtualMethod(jobject,Object) 1110WRAPPER_CallNonvirtualMethod(jboolean,Boolean) 1111WRAPPER_CallNonvirtualMethod(jbyte,Byte) 1112WRAPPER_CallNonvirtualMethod(jshort,Short) 1113WRAPPER_CallNonvirtualMethod(jchar,Char) 1114WRAPPER_CallNonvirtualMethod(jint,Int) 1115WRAPPER_CallNonvirtualMethod(jlong,Long) 1116WRAPPER_CallNonvirtualMethod(jfloat,Float) 1117WRAPPER_CallNonvirtualMethod(jdouble,Double) 1118 1119JNI_ENTRY_CHECKED(void, 1120 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env, 1121 jobject obj, 1122 jclass clazz, 1123 jmethodID methodID, 1124 ...)) 1125 functionEnter(thr); 1126 va_list args; 1127 IN_VM( 1128 jniCheck::validate_call_object(thr, obj, methodID); 1129 jniCheck::validate_call_class(thr, clazz, methodID); 1130 ) 1131 va_start(args,methodID); 1132 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args); 1133 va_end(args); 1134 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod"); 1135 functionExit(thr); 1136JNI_END 1137 1138JNI_ENTRY_CHECKED(void, 1139 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env, 1140 jobject obj, 1141 jclass clazz, 1142 jmethodID methodID, 1143 va_list args)) 1144 functionEnter(thr); 1145 IN_VM( 1146 jniCheck::validate_call_object(thr, obj, methodID); 1147 jniCheck::validate_call_class(thr, clazz, methodID); 1148 ) 1149 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args); 1150 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV"); 1151 functionExit(thr); 1152JNI_END 1153 1154JNI_ENTRY_CHECKED(void, 1155 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env, 1156 jobject obj, 1157 jclass clazz, 1158 jmethodID methodID, 1159 const jvalue * args)) 1160 functionEnter(thr); 1161 IN_VM( 1162 jniCheck::validate_call_object(thr, obj, methodID); 1163 jniCheck::validate_call_class(thr, clazz, methodID); 1164 ) 1165 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args); 1166 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA"); 1167 functionExit(thr); 1168JNI_END 1169 1170JNI_ENTRY_CHECKED(jfieldID, 1171 checked_jni_GetFieldID(JNIEnv *env, 1172 jclass clazz, 1173 const char *name, 1174 const char *sig)) 1175 functionEnter(thr); 1176 IN_VM( 1177 jniCheck::validate_class(thr, clazz, false); 1178 ) 1179 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig); 1180 functionExit(thr); 1181 return result; 1182JNI_END 1183 1184#define WRAPPER_GetField(ReturnType,Result,FieldType) \ 1185JNI_ENTRY_CHECKED(ReturnType, \ 1186 checked_jni_Get##Result##Field(JNIEnv *env, \ 1187 jobject obj, \ 1188 jfieldID fieldID)) \ 1189 functionEnter(thr); \ 1190 IN_VM( \ 1191 checkInstanceFieldID(thr, fieldID, obj, FieldType); \ 1192 ) \ 1193 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \ 1194 functionExit(thr); \ 1195 return result; \ 1196JNI_END 1197 1198WRAPPER_GetField(jobject, Object, T_OBJECT) 1199WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN) 1200WRAPPER_GetField(jbyte, Byte, T_BYTE) 1201WRAPPER_GetField(jshort, Short, T_SHORT) 1202WRAPPER_GetField(jchar, Char, T_CHAR) 1203WRAPPER_GetField(jint, Int, T_INT) 1204WRAPPER_GetField(jlong, Long, T_LONG) 1205WRAPPER_GetField(jfloat, Float, T_FLOAT) 1206WRAPPER_GetField(jdouble, Double, T_DOUBLE) 1207 1208#define WRAPPER_SetField(ValueType,Result,FieldType) \ 1209JNI_ENTRY_CHECKED(void, \ 1210 checked_jni_Set##Result##Field(JNIEnv *env, \ 1211 jobject obj, \ 1212 jfieldID fieldID, \ 1213 ValueType val)) \ 1214 functionEnter(thr); \ 1215 IN_VM( \ 1216 checkInstanceFieldID(thr, fieldID, obj, FieldType); \ 1217 ) \ 1218 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \ 1219 functionExit(thr); \ 1220JNI_END 1221 1222WRAPPER_SetField(jobject, Object, T_OBJECT) 1223WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN) 1224WRAPPER_SetField(jbyte, Byte, T_BYTE) 1225WRAPPER_SetField(jshort, Short, T_SHORT) 1226WRAPPER_SetField(jchar, Char, T_CHAR) 1227WRAPPER_SetField(jint, Int, T_INT) 1228WRAPPER_SetField(jlong, Long, T_LONG) 1229WRAPPER_SetField(jfloat, Float, T_FLOAT) 1230WRAPPER_SetField(jdouble, Double, T_DOUBLE) 1231 1232 1233JNI_ENTRY_CHECKED(jmethodID, 1234 checked_jni_GetStaticMethodID(JNIEnv *env, 1235 jclass clazz, 1236 const char *name, 1237 const char *sig)) 1238 functionEnter(thr); 1239 IN_VM( 1240 jniCheck::validate_class(thr, clazz, false); 1241 ) 1242 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig); 1243 functionExit(thr); 1244 return result; 1245JNI_END 1246 1247#define WRAPPER_CallStaticMethod(ReturnType,Result) \ 1248JNI_ENTRY_CHECKED(ReturnType, \ 1249 checked_jni_CallStatic##Result##Method(JNIEnv *env, \ 1250 jclass clazz, \ 1251 jmethodID methodID, \ 1252 ...)) \ 1253 functionEnter(thr); \ 1254 va_list args; \ 1255 IN_VM( \ 1256 jniCheck::validate_jmethod_id(thr, methodID); \ 1257 jniCheck::validate_class(thr, clazz, false); \ 1258 ) \ 1259 va_start(args,methodID); \ 1260 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \ 1261 clazz, \ 1262 methodID, \ 1263 args); \ 1264 va_end(args); \ 1265 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \ 1266 functionExit(thr); \ 1267 return result; \ 1268JNI_END \ 1269\ 1270JNI_ENTRY_CHECKED(ReturnType, \ 1271 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \ 1272 jclass clazz, \ 1273 jmethodID methodID,\ 1274 va_list args)) \ 1275 functionEnter(thr); \ 1276 IN_VM( \ 1277 jniCheck::validate_jmethod_id(thr, methodID); \ 1278 jniCheck::validate_class(thr, clazz, false); \ 1279 ) \ 1280 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \ 1281 clazz, \ 1282 methodID, \ 1283 args); \ 1284 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \ 1285 functionExit(thr); \ 1286 return result; \ 1287JNI_END \ 1288\ 1289JNI_ENTRY_CHECKED(ReturnType, \ 1290 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \ 1291 jclass clazz, \ 1292 jmethodID methodID, \ 1293 const jvalue *args)) \ 1294 functionEnter(thr); \ 1295 IN_VM( \ 1296 jniCheck::validate_jmethod_id(thr, methodID); \ 1297 jniCheck::validate_class(thr, clazz, false); \ 1298 ) \ 1299 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \ 1300 clazz, \ 1301 methodID, \ 1302 args); \ 1303 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \ 1304 functionExit(thr); \ 1305 return result; \ 1306JNI_END 1307 1308WRAPPER_CallStaticMethod(jobject,Object) 1309WRAPPER_CallStaticMethod(jboolean,Boolean) 1310WRAPPER_CallStaticMethod(jbyte,Byte) 1311WRAPPER_CallStaticMethod(jshort,Short) 1312WRAPPER_CallStaticMethod(jchar,Char) 1313WRAPPER_CallStaticMethod(jint,Int) 1314WRAPPER_CallStaticMethod(jlong,Long) 1315WRAPPER_CallStaticMethod(jfloat,Float) 1316WRAPPER_CallStaticMethod(jdouble,Double) 1317 1318JNI_ENTRY_CHECKED(void, 1319 checked_jni_CallStaticVoidMethod(JNIEnv *env, 1320 jclass cls, 1321 jmethodID methodID, 1322 ...)) 1323 functionEnter(thr); 1324 va_list args; 1325 IN_VM( 1326 jniCheck::validate_jmethod_id(thr, methodID); 1327 jniCheck::validate_class(thr, cls, false); 1328 ) 1329 va_start(args,methodID); 1330 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args); 1331 va_end(args); 1332 thr->set_pending_jni_exception_check("CallStaticVoidMethod"); 1333 functionExit(thr); 1334JNI_END 1335 1336JNI_ENTRY_CHECKED(void, 1337 checked_jni_CallStaticVoidMethodV(JNIEnv *env, 1338 jclass cls, 1339 jmethodID methodID, 1340 va_list args)) 1341 functionEnter(thr); 1342 IN_VM( 1343 jniCheck::validate_jmethod_id(thr, methodID); 1344 jniCheck::validate_class(thr, cls, false); 1345 ) 1346 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args); 1347 thr->set_pending_jni_exception_check("CallStaticVoidMethodV"); 1348 functionExit(thr); 1349JNI_END 1350 1351JNI_ENTRY_CHECKED(void, 1352 checked_jni_CallStaticVoidMethodA(JNIEnv *env, 1353 jclass cls, 1354 jmethodID methodID, 1355 const jvalue * args)) 1356 functionEnter(thr); 1357 IN_VM( 1358 jniCheck::validate_jmethod_id(thr, methodID); 1359 jniCheck::validate_class(thr, cls, false); 1360 ) 1361 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args); 1362 thr->set_pending_jni_exception_check("CallStaticVoidMethodA"); 1363 functionExit(thr); 1364JNI_END 1365 1366JNI_ENTRY_CHECKED(jfieldID, 1367 checked_jni_GetStaticFieldID(JNIEnv *env, 1368 jclass clazz, 1369 const char *name, 1370 const char *sig)) 1371 functionEnter(thr); 1372 IN_VM( 1373 jniCheck::validate_class(thr, clazz, false); 1374 ) 1375 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig); 1376 functionExit(thr); 1377 return result; 1378JNI_END 1379 1380#define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \ 1381JNI_ENTRY_CHECKED(ReturnType, \ 1382 checked_jni_GetStatic##Result##Field(JNIEnv *env, \ 1383 jclass clazz, \ 1384 jfieldID fieldID)) \ 1385 functionEnter(thr); \ 1386 IN_VM( \ 1387 jniCheck::validate_class(thr, clazz, false); \ 1388 checkStaticFieldID(thr, fieldID, clazz, FieldType); \ 1389 ) \ 1390 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \ 1391 clazz, \ 1392 fieldID); \ 1393 functionExit(thr); \ 1394 return result; \ 1395JNI_END 1396 1397WRAPPER_GetStaticField(jobject, Object, T_OBJECT) 1398WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN) 1399WRAPPER_GetStaticField(jbyte, Byte, T_BYTE) 1400WRAPPER_GetStaticField(jshort, Short, T_SHORT) 1401WRAPPER_GetStaticField(jchar, Char, T_CHAR) 1402WRAPPER_GetStaticField(jint, Int, T_INT) 1403WRAPPER_GetStaticField(jlong, Long, T_LONG) 1404WRAPPER_GetStaticField(jfloat, Float, T_FLOAT) 1405WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE) 1406 1407#define WRAPPER_SetStaticField(ValueType,Result,FieldType) \ 1408JNI_ENTRY_CHECKED(void, \ 1409 checked_jni_SetStatic##Result##Field(JNIEnv *env, \ 1410 jclass clazz, \ 1411 jfieldID fieldID, \ 1412 ValueType value)) \ 1413 functionEnter(thr); \ 1414 IN_VM( \ 1415 jniCheck::validate_class(thr, clazz, false); \ 1416 checkStaticFieldID(thr, fieldID, clazz, FieldType); \ 1417 ) \ 1418 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \ 1419 functionExit(thr); \ 1420JNI_END 1421 1422WRAPPER_SetStaticField(jobject, Object, T_OBJECT) 1423WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN) 1424WRAPPER_SetStaticField(jbyte, Byte, T_BYTE) 1425WRAPPER_SetStaticField(jshort, Short, T_SHORT) 1426WRAPPER_SetStaticField(jchar, Char, T_CHAR) 1427WRAPPER_SetStaticField(jint, Int, T_INT) 1428WRAPPER_SetStaticField(jlong, Long, T_LONG) 1429WRAPPER_SetStaticField(jfloat, Float, T_FLOAT) 1430WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE) 1431 1432 1433JNI_ENTRY_CHECKED(jstring, 1434 checked_jni_NewString(JNIEnv *env, 1435 const jchar *unicode, 1436 jsize len)) 1437 functionEnter(thr); 1438 jstring result = UNCHECKED()->NewString(env,unicode,len); 1439 functionExit(thr); 1440 return result; 1441JNI_END 1442 1443JNI_ENTRY_CHECKED(jsize, 1444 checked_jni_GetStringLength(JNIEnv *env, 1445 jstring str)) 1446 functionEnter(thr); 1447 IN_VM( 1448 checkString(thr, str); 1449 ) 1450 jsize result = UNCHECKED()->GetStringLength(env,str); 1451 functionExit(thr); 1452 return result; 1453JNI_END 1454 1455// Arbitrary (but well-known) tag 1456const void* STRING_TAG = (void*)0x47114711; 1457 1458JNI_ENTRY_CHECKED(const jchar *, 1459 checked_jni_GetStringChars(JNIEnv *env, 1460 jstring str, 1461 jboolean *isCopy)) 1462 functionEnter(thr); 1463 IN_VM( 1464 checkString(thr, str); 1465 ) 1466 jchar* new_result = NULL; 1467 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy); 1468 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected"); 1469 if (result != NULL) { 1470 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination 1471 len *= sizeof(jchar); 1472 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG); 1473 if (new_result == NULL) { 1474 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars"); 1475 } 1476 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes 1477 // Note that the dtrace arguments for the allocated memory will not match up with this solution. 1478 FreeHeap((char*)result); 1479 } 1480 functionExit(thr); 1481 return new_result; 1482JNI_END 1483 1484JNI_ENTRY_CHECKED(void, 1485 checked_jni_ReleaseStringChars(JNIEnv *env, 1486 jstring str, 1487 const jchar *chars)) 1488 functionEnterExceptionAllowed(thr); 1489 IN_VM( 1490 checkString(thr, str); 1491 ) 1492 if (chars == NULL) { 1493 // still do the unchecked call to allow dtrace probes 1494 UNCHECKED()->ReleaseStringChars(env,str,chars); 1495 } 1496 else { 1497 GuardedMemory guarded((void*)chars); 1498 if (!guarded.verify_guards()) { 1499 tty->print_cr("ReleaseStringChars: release chars failed bounds check. " 1500 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars)); 1501 guarded.print_on(tty); 1502 NativeReportJNIFatalError(thr, "ReleaseStringChars: " 1503 "release chars failed bounds check."); 1504 } 1505 if (guarded.get_tag() != STRING_TAG) { 1506 tty->print_cr("ReleaseStringChars: called on something not allocated " 1507 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT, 1508 p2i(str), p2i(chars)); 1509 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something " 1510 "not allocated by GetStringChars"); 1511 } 1512 UNCHECKED()->ReleaseStringChars(env, str, 1513 (const jchar*) guarded.release_for_freeing()); 1514 } 1515 functionExit(thr); 1516JNI_END 1517 1518JNI_ENTRY_CHECKED(jstring, 1519 checked_jni_NewStringUTF(JNIEnv *env, 1520 const char *utf)) 1521 functionEnter(thr); 1522 jstring result = UNCHECKED()->NewStringUTF(env,utf); 1523 functionExit(thr); 1524 return result; 1525JNI_END 1526 1527JNI_ENTRY_CHECKED(jsize, 1528 checked_jni_GetStringUTFLength(JNIEnv *env, 1529 jstring str)) 1530 functionEnter(thr); 1531 IN_VM( 1532 checkString(thr, str); 1533 ) 1534 jsize result = UNCHECKED()->GetStringUTFLength(env,str); 1535 functionExit(thr); 1536 return result; 1537JNI_END 1538 1539// Arbitrary (but well-known) tag - different than GetStringChars 1540const void* STRING_UTF_TAG = (void*) 0x48124812; 1541 1542JNI_ENTRY_CHECKED(const char *, 1543 checked_jni_GetStringUTFChars(JNIEnv *env, 1544 jstring str, 1545 jboolean *isCopy)) 1546 functionEnter(thr); 1547 IN_VM( 1548 checkString(thr, str); 1549 ) 1550 char* new_result = NULL; 1551 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy); 1552 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected"); 1553 if (result != NULL) { 1554 size_t len = strlen(result) + 1; // + 1 for NULL termination 1555 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG); 1556 if (new_result == NULL) { 1557 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars"); 1558 } 1559 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes 1560 // Note that the dtrace arguments for the allocated memory will not match up with this solution. 1561 FreeHeap((char*)result); 1562 } 1563 functionExit(thr); 1564 return new_result; 1565JNI_END 1566 1567JNI_ENTRY_CHECKED(void, 1568 checked_jni_ReleaseStringUTFChars(JNIEnv *env, 1569 jstring str, 1570 const char* chars)) 1571 functionEnterExceptionAllowed(thr); 1572 IN_VM( 1573 checkString(thr, str); 1574 ) 1575 if (chars == NULL) { 1576 // still do the unchecked call to allow dtrace probes 1577 UNCHECKED()->ReleaseStringUTFChars(env,str,chars); 1578 } 1579 else { 1580 GuardedMemory guarded((void*)chars); 1581 if (!guarded.verify_guards()) { 1582 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. " 1583 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars)); 1584 guarded.print_on(tty); 1585 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: " 1586 "release chars failed bounds check."); 1587 } 1588 if (guarded.get_tag() != STRING_UTF_TAG) { 1589 tty->print_cr("ReleaseStringUTFChars: called on something not " 1590 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: " 1591 PTR_FORMAT, p2i(str), p2i(chars)); 1592 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars " 1593 "called on something not allocated by GetStringUTFChars"); 1594 } 1595 UNCHECKED()->ReleaseStringUTFChars(env, str, 1596 (const char*) guarded.release_for_freeing()); 1597 } 1598 functionExit(thr); 1599JNI_END 1600 1601JNI_ENTRY_CHECKED(jsize, 1602 checked_jni_GetArrayLength(JNIEnv *env, 1603 jarray array)) 1604 functionEnter(thr); 1605 IN_VM( 1606 check_is_array(thr, array); 1607 ) 1608 jsize result = UNCHECKED()->GetArrayLength(env,array); 1609 functionExit(thr); 1610 return result; 1611JNI_END 1612 1613JNI_ENTRY_CHECKED(jobjectArray, 1614 checked_jni_NewObjectArray(JNIEnv *env, 1615 jsize len, 1616 jclass clazz, 1617 jobject init)) 1618 functionEnter(thr); 1619 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init); 1620 functionExit(thr); 1621 return result; 1622JNI_END 1623 1624JNI_ENTRY_CHECKED(jobject, 1625 checked_jni_GetObjectArrayElement(JNIEnv *env, 1626 jobjectArray array, 1627 jsize index)) 1628 functionEnter(thr); 1629 IN_VM( 1630 check_is_obj_array(thr, array); 1631 ) 1632 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index); 1633 functionExit(thr); 1634 return result; 1635JNI_END 1636 1637JNI_ENTRY_CHECKED(void, 1638 checked_jni_SetObjectArrayElement(JNIEnv *env, 1639 jobjectArray array, 1640 jsize index, 1641 jobject val)) 1642 functionEnter(thr); 1643 IN_VM( 1644 check_is_obj_array(thr, array); 1645 ) 1646 UNCHECKED()->SetObjectArrayElement(env,array,index,val); 1647 functionExit(thr); 1648JNI_END 1649 1650#define WRAPPER_NewScalarArray(Return, Result) \ 1651JNI_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; \ 1658JNI_END 1659 1660WRAPPER_NewScalarArray(jbooleanArray, Boolean) 1661WRAPPER_NewScalarArray(jbyteArray, Byte) 1662WRAPPER_NewScalarArray(jshortArray, Short) 1663WRAPPER_NewScalarArray(jcharArray, Char) 1664WRAPPER_NewScalarArray(jintArray, Int) 1665WRAPPER_NewScalarArray(jlongArray, Long) 1666WRAPPER_NewScalarArray(jfloatArray, Float) 1667WRAPPER_NewScalarArray(jdoubleArray, Double) 1668 1669#define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \ 1670JNI_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; \ 1686JNI_END 1687 1688WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean) 1689WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte) 1690WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short) 1691WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char) 1692WRAPPER_GetScalarArrayElements(T_INT, jint, Int) 1693WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long) 1694WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float) 1695WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double) 1696 1697#define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \ 1698JNI_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); \ 1713JNI_END 1714 1715WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool) 1716WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte) 1717WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short) 1718WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char) 1719WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int) 1720WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long) 1721WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float) 1722WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double) 1723 1724#define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \ 1725JNI_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 functionExit(thr); \ 1737JNI_END 1738 1739WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean) 1740WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte) 1741WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short) 1742WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char) 1743WRAPPER_GetScalarArrayRegion(T_INT, jint, Int) 1744WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long) 1745WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float) 1746WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double) 1747 1748#define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \ 1749JNI_ENTRY_CHECKED(void, \ 1750 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \ 1751 ElementType##Array array, \ 1752 jsize start, \ 1753 jsize len, \ 1754 const ElementType *buf)) \ 1755 functionEnter(thr); \ 1756 IN_VM( \ 1757 check_primitive_array_type(thr, array, ElementTag); \ 1758 ) \ 1759 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \ 1760 functionExit(thr); \ 1761JNI_END 1762 1763WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean) 1764WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte) 1765WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short) 1766WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char) 1767WRAPPER_SetScalarArrayRegion(T_INT, jint, Int) 1768WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long) 1769WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float) 1770WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double) 1771 1772JNI_ENTRY_CHECKED(jint, 1773 checked_jni_RegisterNatives(JNIEnv *env, 1774 jclass clazz, 1775 const JNINativeMethod *methods, 1776 jint nMethods)) 1777 functionEnter(thr); 1778 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods); 1779 functionExit(thr); 1780 return result; 1781JNI_END 1782 1783JNI_ENTRY_CHECKED(jint, 1784 checked_jni_UnregisterNatives(JNIEnv *env, 1785 jclass clazz)) 1786 functionEnter(thr); 1787 jint result = UNCHECKED()->UnregisterNatives(env,clazz); 1788 functionExit(thr); 1789 return result; 1790JNI_END 1791 1792JNI_ENTRY_CHECKED(jint, 1793 checked_jni_MonitorEnter(JNIEnv *env, 1794 jobject obj)) 1795 functionEnter(thr); 1796 IN_VM( 1797 jniCheck::validate_object(thr, obj); 1798 ) 1799 jint result = UNCHECKED()->MonitorEnter(env,obj); 1800 functionExit(thr); 1801 return result; 1802JNI_END 1803 1804JNI_ENTRY_CHECKED(jint, 1805 checked_jni_MonitorExit(JNIEnv *env, 1806 jobject obj)) 1807 functionEnterExceptionAllowed(thr); 1808 IN_VM( 1809 jniCheck::validate_object(thr, obj); 1810 ) 1811 jint result = UNCHECKED()->MonitorExit(env,obj); 1812 functionExit(thr); 1813 return result; 1814JNI_END 1815 1816JNI_ENTRY_CHECKED(jint, 1817 checked_jni_GetJavaVM(JNIEnv *env, 1818 JavaVM **vm)) 1819 functionEnter(thr); 1820 jint result = UNCHECKED()->GetJavaVM(env,vm); 1821 functionExit(thr); 1822 return result; 1823JNI_END 1824 1825JNI_ENTRY_CHECKED(void, 1826 checked_jni_GetStringRegion(JNIEnv *env, 1827 jstring str, 1828 jsize start, 1829 jsize len, 1830 jchar *buf)) 1831 functionEnter(thr); 1832 IN_VM( 1833 checkString(thr, str); 1834 ) 1835 UNCHECKED()->GetStringRegion(env, str, start, len, buf); 1836 functionExit(thr); 1837JNI_END 1838 1839JNI_ENTRY_CHECKED(void, 1840 checked_jni_GetStringUTFRegion(JNIEnv *env, 1841 jstring str, 1842 jsize start, 1843 jsize len, 1844 char *buf)) 1845 functionEnter(thr); 1846 IN_VM( 1847 checkString(thr, str); 1848 ) 1849 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf); 1850 functionExit(thr); 1851JNI_END 1852 1853JNI_ENTRY_CHECKED(void *, 1854 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env, 1855 jarray array, 1856 jboolean *isCopy)) 1857 functionEnterCritical(thr); 1858 IN_VM( 1859 check_is_primitive_array(thr, array); 1860 ) 1861 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy); 1862 if (result != NULL) { 1863 result = check_jni_wrap_copy_array(thr, array, result); 1864 } 1865 functionExit(thr); 1866 return result; 1867JNI_END 1868 1869JNI_ENTRY_CHECKED(void, 1870 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env, 1871 jarray array, 1872 void *carray, 1873 jint mode)) 1874 functionEnterCriticalExceptionAllowed(thr); 1875 IN_VM( 1876 check_is_primitive_array(thr, array); 1877 ) 1878 // Check the element array... 1879 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode); 1880 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode); 1881 functionExit(thr); 1882JNI_END 1883 1884JNI_ENTRY_CHECKED(const jchar*, 1885 checked_jni_GetStringCritical(JNIEnv *env, 1886 jstring string, 1887 jboolean *isCopy)) 1888 functionEnterCritical(thr); 1889 IN_VM( 1890 checkString(thr, string); 1891 ) 1892 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy); 1893 functionExit(thr); 1894 return result; 1895JNI_END 1896 1897JNI_ENTRY_CHECKED(void, 1898 checked_jni_ReleaseStringCritical(JNIEnv *env, 1899 jstring str, 1900 const jchar *chars)) 1901 functionEnterCriticalExceptionAllowed(thr); 1902 IN_VM( 1903 checkString(thr, str); 1904 ) 1905 /* The Hotspot JNI code does not use the parameters, so just check the 1906 * string parameter as a minor sanity check 1907 */ 1908 UNCHECKED()->ReleaseStringCritical(env, str, chars); 1909 functionExit(thr); 1910JNI_END 1911 1912JNI_ENTRY_CHECKED(jweak, 1913 checked_jni_NewWeakGlobalRef(JNIEnv *env, 1914 jobject obj)) 1915 functionEnter(thr); 1916 IN_VM( 1917 if (obj != NULL) { 1918 jniCheck::validate_handle(thr, obj); 1919 } 1920 ) 1921 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj); 1922 functionExit(thr); 1923 return result; 1924JNI_END 1925 1926JNI_ENTRY_CHECKED(void, 1927 checked_jni_DeleteWeakGlobalRef(JNIEnv *env, 1928 jweak ref)) 1929 functionEnterExceptionAllowed(thr); 1930 UNCHECKED()->DeleteWeakGlobalRef(env, ref); 1931 functionExit(thr); 1932JNI_END 1933 1934JNI_ENTRY_CHECKED(jboolean, 1935 checked_jni_ExceptionCheck(JNIEnv *env)) 1936 thr->clear_pending_jni_exception_check(); 1937 functionEnterExceptionAllowed(thr); 1938 jboolean result = UNCHECKED()->ExceptionCheck(env); 1939 functionExit(thr); 1940 return result; 1941JNI_END 1942 1943JNI_ENTRY_CHECKED(jobject, 1944 checked_jni_NewDirectByteBuffer(JNIEnv *env, 1945 void *address, 1946 jlong capacity)) 1947 functionEnter(thr); 1948 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity); 1949 functionExit(thr); 1950 return result; 1951JNI_END 1952 1953JNI_ENTRY_CHECKED(void *, 1954 checked_jni_GetDirectBufferAddress(JNIEnv *env, 1955 jobject buf)) 1956 functionEnter(thr); 1957 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf); 1958 functionExit(thr); 1959 return result; 1960JNI_END 1961 1962JNI_ENTRY_CHECKED(jlong, 1963 checked_jni_GetDirectBufferCapacity(JNIEnv *env, 1964 jobject buf)) 1965 functionEnter(thr); 1966 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf); 1967 functionExit(thr); 1968 return result; 1969JNI_END 1970 1971JNI_ENTRY_CHECKED(jobjectRefType, 1972 checked_jni_GetObjectRefType(JNIEnv *env, 1973 jobject obj)) 1974 functionEnter(thr); 1975 /* validate the object being passed */ 1976 IN_VM( 1977 jniCheck::validate_object(thr, obj); 1978 ) 1979 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj); 1980 functionExit(thr); 1981 return result; 1982JNI_END 1983 1984 1985JNI_ENTRY_CHECKED(jint, 1986 checked_jni_GetVersion(JNIEnv *env)) 1987 functionEnter(thr); 1988 jint result = UNCHECKED()->GetVersion(env); 1989 functionExit(thr); 1990 return result; 1991JNI_END 1992 1993JNI_ENTRY_CHECKED(jobject, 1994 checked_jni_GetModule(JNIEnv *env, 1995 jclass clazz)) 1996 functionEnter(thr); 1997 IN_VM( 1998 jniCheck::validate_class(thr, clazz, false); 1999 ) 2000 jobject result = UNCHECKED()->GetModule(env,clazz); 2001 functionExit(thr); 2002 return result; 2003JNI_END 2004 2005/* 2006 * Structure containing all checked jni functions 2007 */ 2008struct JNINativeInterface_ checked_jni_NativeInterface = { 2009 NULL, 2010 NULL, 2011 NULL, 2012 2013 NULL, 2014 2015 checked_jni_GetVersion, 2016 2017 checked_jni_DefineClass, 2018 checked_jni_FindClass, 2019 2020 checked_jni_FromReflectedMethod, 2021 checked_jni_FromReflectedField, 2022 2023 checked_jni_ToReflectedMethod, 2024 2025 checked_jni_GetSuperclass, 2026 checked_jni_IsAssignableFrom, 2027 2028 checked_jni_ToReflectedField, 2029 2030 checked_jni_Throw, 2031 checked_jni_ThrowNew, 2032 checked_jni_ExceptionOccurred, 2033 checked_jni_ExceptionDescribe, 2034 checked_jni_ExceptionClear, 2035 checked_jni_FatalError, 2036 2037 checked_jni_PushLocalFrame, 2038 checked_jni_PopLocalFrame, 2039 2040 checked_jni_NewGlobalRef, 2041 checked_jni_DeleteGlobalRef, 2042 checked_jni_DeleteLocalRef, 2043 checked_jni_IsSameObject, 2044 2045 checked_jni_NewLocalRef, 2046 checked_jni_EnsureLocalCapacity, 2047 2048 checked_jni_AllocObject, 2049 checked_jni_NewObject, 2050 checked_jni_NewObjectV, 2051 checked_jni_NewObjectA, 2052 2053 checked_jni_GetObjectClass, 2054 checked_jni_IsInstanceOf, 2055 2056 checked_jni_GetMethodID, 2057 2058 checked_jni_CallObjectMethod, 2059 checked_jni_CallObjectMethodV, 2060 checked_jni_CallObjectMethodA, 2061 checked_jni_CallBooleanMethod, 2062 checked_jni_CallBooleanMethodV, 2063 checked_jni_CallBooleanMethodA, 2064 checked_jni_CallByteMethod, 2065 checked_jni_CallByteMethodV, 2066 checked_jni_CallByteMethodA, 2067 checked_jni_CallCharMethod, 2068 checked_jni_CallCharMethodV, 2069 checked_jni_CallCharMethodA, 2070 checked_jni_CallShortMethod, 2071 checked_jni_CallShortMethodV, 2072 checked_jni_CallShortMethodA, 2073 checked_jni_CallIntMethod, 2074 checked_jni_CallIntMethodV, 2075 checked_jni_CallIntMethodA, 2076 checked_jni_CallLongMethod, 2077 checked_jni_CallLongMethodV, 2078 checked_jni_CallLongMethodA, 2079 checked_jni_CallFloatMethod, 2080 checked_jni_CallFloatMethodV, 2081 checked_jni_CallFloatMethodA, 2082 checked_jni_CallDoubleMethod, 2083 checked_jni_CallDoubleMethodV, 2084 checked_jni_CallDoubleMethodA, 2085 checked_jni_CallVoidMethod, 2086 checked_jni_CallVoidMethodV, 2087 checked_jni_CallVoidMethodA, 2088 2089 checked_jni_CallNonvirtualObjectMethod, 2090 checked_jni_CallNonvirtualObjectMethodV, 2091 checked_jni_CallNonvirtualObjectMethodA, 2092 checked_jni_CallNonvirtualBooleanMethod, 2093 checked_jni_CallNonvirtualBooleanMethodV, 2094 checked_jni_CallNonvirtualBooleanMethodA, 2095 checked_jni_CallNonvirtualByteMethod, 2096 checked_jni_CallNonvirtualByteMethodV, 2097 checked_jni_CallNonvirtualByteMethodA, 2098 checked_jni_CallNonvirtualCharMethod, 2099 checked_jni_CallNonvirtualCharMethodV, 2100 checked_jni_CallNonvirtualCharMethodA, 2101 checked_jni_CallNonvirtualShortMethod, 2102 checked_jni_CallNonvirtualShortMethodV, 2103 checked_jni_CallNonvirtualShortMethodA, 2104 checked_jni_CallNonvirtualIntMethod, 2105 checked_jni_CallNonvirtualIntMethodV, 2106 checked_jni_CallNonvirtualIntMethodA, 2107 checked_jni_CallNonvirtualLongMethod, 2108 checked_jni_CallNonvirtualLongMethodV, 2109 checked_jni_CallNonvirtualLongMethodA, 2110 checked_jni_CallNonvirtualFloatMethod, 2111 checked_jni_CallNonvirtualFloatMethodV, 2112 checked_jni_CallNonvirtualFloatMethodA, 2113 checked_jni_CallNonvirtualDoubleMethod, 2114 checked_jni_CallNonvirtualDoubleMethodV, 2115 checked_jni_CallNonvirtualDoubleMethodA, 2116 checked_jni_CallNonvirtualVoidMethod, 2117 checked_jni_CallNonvirtualVoidMethodV, 2118 checked_jni_CallNonvirtualVoidMethodA, 2119 2120 checked_jni_GetFieldID, 2121 2122 checked_jni_GetObjectField, 2123 checked_jni_GetBooleanField, 2124 checked_jni_GetByteField, 2125 checked_jni_GetCharField, 2126 checked_jni_GetShortField, 2127 checked_jni_GetIntField, 2128 checked_jni_GetLongField, 2129 checked_jni_GetFloatField, 2130 checked_jni_GetDoubleField, 2131 2132 checked_jni_SetObjectField, 2133 checked_jni_SetBooleanField, 2134 checked_jni_SetByteField, 2135 checked_jni_SetCharField, 2136 checked_jni_SetShortField, 2137 checked_jni_SetIntField, 2138 checked_jni_SetLongField, 2139 checked_jni_SetFloatField, 2140 checked_jni_SetDoubleField, 2141 2142 checked_jni_GetStaticMethodID, 2143 2144 checked_jni_CallStaticObjectMethod, 2145 checked_jni_CallStaticObjectMethodV, 2146 checked_jni_CallStaticObjectMethodA, 2147 checked_jni_CallStaticBooleanMethod, 2148 checked_jni_CallStaticBooleanMethodV, 2149 checked_jni_CallStaticBooleanMethodA, 2150 checked_jni_CallStaticByteMethod, 2151 checked_jni_CallStaticByteMethodV, 2152 checked_jni_CallStaticByteMethodA, 2153 checked_jni_CallStaticCharMethod, 2154 checked_jni_CallStaticCharMethodV, 2155 checked_jni_CallStaticCharMethodA, 2156 checked_jni_CallStaticShortMethod, 2157 checked_jni_CallStaticShortMethodV, 2158 checked_jni_CallStaticShortMethodA, 2159 checked_jni_CallStaticIntMethod, 2160 checked_jni_CallStaticIntMethodV, 2161 checked_jni_CallStaticIntMethodA, 2162 checked_jni_CallStaticLongMethod, 2163 checked_jni_CallStaticLongMethodV, 2164 checked_jni_CallStaticLongMethodA, 2165 checked_jni_CallStaticFloatMethod, 2166 checked_jni_CallStaticFloatMethodV, 2167 checked_jni_CallStaticFloatMethodA, 2168 checked_jni_CallStaticDoubleMethod, 2169 checked_jni_CallStaticDoubleMethodV, 2170 checked_jni_CallStaticDoubleMethodA, 2171 checked_jni_CallStaticVoidMethod, 2172 checked_jni_CallStaticVoidMethodV, 2173 checked_jni_CallStaticVoidMethodA, 2174 2175 checked_jni_GetStaticFieldID, 2176 2177 checked_jni_GetStaticObjectField, 2178 checked_jni_GetStaticBooleanField, 2179 checked_jni_GetStaticByteField, 2180 checked_jni_GetStaticCharField, 2181 checked_jni_GetStaticShortField, 2182 checked_jni_GetStaticIntField, 2183 checked_jni_GetStaticLongField, 2184 checked_jni_GetStaticFloatField, 2185 checked_jni_GetStaticDoubleField, 2186 2187 checked_jni_SetStaticObjectField, 2188 checked_jni_SetStaticBooleanField, 2189 checked_jni_SetStaticByteField, 2190 checked_jni_SetStaticCharField, 2191 checked_jni_SetStaticShortField, 2192 checked_jni_SetStaticIntField, 2193 checked_jni_SetStaticLongField, 2194 checked_jni_SetStaticFloatField, 2195 checked_jni_SetStaticDoubleField, 2196 2197 checked_jni_NewString, 2198 checked_jni_GetStringLength, 2199 checked_jni_GetStringChars, 2200 checked_jni_ReleaseStringChars, 2201 2202 checked_jni_NewStringUTF, 2203 checked_jni_GetStringUTFLength, 2204 checked_jni_GetStringUTFChars, 2205 checked_jni_ReleaseStringUTFChars, 2206 2207 checked_jni_GetArrayLength, 2208 2209 checked_jni_NewObjectArray, 2210 checked_jni_GetObjectArrayElement, 2211 checked_jni_SetObjectArrayElement, 2212 2213 checked_jni_NewBooleanArray, 2214 checked_jni_NewByteArray, 2215 checked_jni_NewCharArray, 2216 checked_jni_NewShortArray, 2217 checked_jni_NewIntArray, 2218 checked_jni_NewLongArray, 2219 checked_jni_NewFloatArray, 2220 checked_jni_NewDoubleArray, 2221 2222 checked_jni_GetBooleanArrayElements, 2223 checked_jni_GetByteArrayElements, 2224 checked_jni_GetCharArrayElements, 2225 checked_jni_GetShortArrayElements, 2226 checked_jni_GetIntArrayElements, 2227 checked_jni_GetLongArrayElements, 2228 checked_jni_GetFloatArrayElements, 2229 checked_jni_GetDoubleArrayElements, 2230 2231 checked_jni_ReleaseBooleanArrayElements, 2232 checked_jni_ReleaseByteArrayElements, 2233 checked_jni_ReleaseCharArrayElements, 2234 checked_jni_ReleaseShortArrayElements, 2235 checked_jni_ReleaseIntArrayElements, 2236 checked_jni_ReleaseLongArrayElements, 2237 checked_jni_ReleaseFloatArrayElements, 2238 checked_jni_ReleaseDoubleArrayElements, 2239 2240 checked_jni_GetBooleanArrayRegion, 2241 checked_jni_GetByteArrayRegion, 2242 checked_jni_GetCharArrayRegion, 2243 checked_jni_GetShortArrayRegion, 2244 checked_jni_GetIntArrayRegion, 2245 checked_jni_GetLongArrayRegion, 2246 checked_jni_GetFloatArrayRegion, 2247 checked_jni_GetDoubleArrayRegion, 2248 2249 checked_jni_SetBooleanArrayRegion, 2250 checked_jni_SetByteArrayRegion, 2251 checked_jni_SetCharArrayRegion, 2252 checked_jni_SetShortArrayRegion, 2253 checked_jni_SetIntArrayRegion, 2254 checked_jni_SetLongArrayRegion, 2255 checked_jni_SetFloatArrayRegion, 2256 checked_jni_SetDoubleArrayRegion, 2257 2258 checked_jni_RegisterNatives, 2259 checked_jni_UnregisterNatives, 2260 2261 checked_jni_MonitorEnter, 2262 checked_jni_MonitorExit, 2263 2264 checked_jni_GetJavaVM, 2265 2266 checked_jni_GetStringRegion, 2267 checked_jni_GetStringUTFRegion, 2268 2269 checked_jni_GetPrimitiveArrayCritical, 2270 checked_jni_ReleasePrimitiveArrayCritical, 2271 2272 checked_jni_GetStringCritical, 2273 checked_jni_ReleaseStringCritical, 2274 2275 checked_jni_NewWeakGlobalRef, 2276 checked_jni_DeleteWeakGlobalRef, 2277 2278 checked_jni_ExceptionCheck, 2279 2280 checked_jni_NewDirectByteBuffer, 2281 checked_jni_GetDirectBufferAddress, 2282 checked_jni_GetDirectBufferCapacity, 2283 2284 // New 1.6 Features 2285 2286 checked_jni_GetObjectRefType, 2287 2288 // Module Features 2289 2290 checked_jni_GetModule 2291}; 2292 2293 2294// Returns the function structure 2295struct JNINativeInterface_* jni_functions_check() { 2296 2297 unchecked_jni_NativeInterface = jni_functions_nocheck(); 2298 2299 // make sure the last pointer in the checked table is not null, indicating 2300 // an addition to the JNINativeInterface_ structure without initializing 2301 // it in the checked table. 2302 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \ 2303 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));) 2304 assert(*lastPtr != 0, 2305 "Mismatched JNINativeInterface tables, check for new entries"); 2306 2307 // with -verbose:jni this message will print 2308 if (PrintJNIResolving) { 2309 tty->print_cr("Checked JNI functions are being used to " \ 2310 "validate JNI usage"); 2311 } 2312 2313 return &checked_jni_NativeInterface; 2314} 2315