jdk8-mips64-public/hotspot: src/share/vm/prims/jniCheck.cpp@833b0f92429a

8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill

     1 /*

     2  * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #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

    57 // Heap objects are allowed to be directly referenced only in VM code,

    58 // not in native code.

    60 #define ASSERT_OOPS_ALLOWED                                          \

    61     assert(JavaThread::current()->thread_state() == _thread_in_vm,   \

    62            "jniCheck examining oops in bad state.")

    65 // Execute the given block of source code with the thread in VM state.

    66 // To do this, transition from the NATIVE state to the VM state, execute

    67 // the code, and transtition back.  The ThreadInVMfromNative constructor

    68 // performs the transition to VM state, its destructor restores the

    69 // NATIVE state.

    71 #define IN_VM(source_code)   {                                         \

    72     {                                                                  \

    73       ThreadInVMfromNative __tiv(thr);                                 \

    74       source_code                                                      \

    75     }                                                                  \

    76   }

    79 /*

    80  * DECLARATIONS

    81  */

    83 static struct JNINativeInterface_ * unchecked_jni_NativeInterface;

    86 /*

    87  * MACRO DEFINITIONS

    88  */

    90 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the

    91 // QUICK_ENTRY or LEAF variants found in jni.cpp.  This allows handles

    92 // to be created if a fatal error should occur.

    94 // Check for thread not attached to VM;  need to catch this before

    95 // assertions in the wrapper routines might fire

    97 // Check for env being the one value appropriate for this thread.

    99 #define JNI_ENTRY_CHECKED(result_type, header)                           \

   100 extern "C" {                                                             \

   101   result_type JNICALL header {                                           \

   102     JavaThread* thr = (JavaThread*)ThreadLocalStorage::get_thread_slow();\

   103     if (thr == NULL || !thr->is_Java_thread()) {                         \

   104       tty->print_cr("%s", fatal_using_jnienv_in_nonjava);                      \

   105       os::abort(true);                                                   \

   106     }                                                                    \

   107     JNIEnv* xenv = thr->jni_environment();                               \

   108     if (env != xenv) {                                                   \

   109       NativeReportJNIFatalError(thr, warn_wrong_jnienv);                 \

   110     }                                                                    \

   111     VM_ENTRY_BASE(result_type, header, thr)

   114 #define UNCHECKED() (unchecked_jni_NativeInterface)

   116 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread";

   117 static const char * warn_bad_class_descriptor = "JNI FindClass received a bad class descriptor \"%s\".  A correct class descriptor " \

   118   "has no leading \"L\" or trailing \";\".  Incorrect descriptors will not be accepted in future releases.";

   119 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread";

   120 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \

   121   "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical";

   122 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI";

   123 static const char * fatal_received_null_class = "JNI received a null class";

   124 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class";

   125 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";

   126 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call";

   127 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call";

   128 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations";

   129 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation";

   130 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation";

   131 static const char * fatal_non_array  = "Non-array passed to JNI array operations";

   132 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI";

   133 static const char * fatal_should_be_static = "Non-static field ID passed to JNI";

   134 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI";

   135 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations";

   136 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations";

   137 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI";

   138 static const char * fatal_null_object = "Null object passed to JNI";

   139 static const char * fatal_wrong_field = "Wrong field ID passed to JNI";

   140 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations";

   141 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations";

   142 static const char * fatal_non_string = "JNI string operation received a non-string";

   145 // When in VM state:

   146 static void ReportJNIWarning(JavaThread* thr, const char *msg) {

   147   tty->print_cr("WARNING in native method: %s", msg);

   148   thr->print_stack();

   149 }

   151 // When in NATIVE state:

   152 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {

   153   IN_VM(

   154     ReportJNIFatalError(thr, msg);

   155   )

   156 }

   158 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {

   159   IN_VM(

   160     ReportJNIWarning(thr, msg);

   161   )

   162 }

   167 /*

   168  * SUPPORT FUNCTIONS

   169  */

   171 static inline void

   172 functionEnterCritical(JavaThread* thr)

   173 {

   174   if (thr->has_pending_exception()) {

   175     NativeReportJNIWarning(thr, "JNI call made with exception pending");

   176   }

   177 }

   179 static inline void

   180 functionEnterCriticalExceptionAllowed(JavaThread* thr)

   181 {

   182 }

   184 static inline void

   185 functionEnter(JavaThread* thr)

   186 {

   187   if (thr->in_critical()) {

   188     tty->print_cr("%s", warn_other_function_in_critical);

   189   }

   190   if (thr->has_pending_exception()) {

   191     NativeReportJNIWarning(thr, "JNI call made with exception pending");

   192   }

   193 }

   195 static inline void

   196 functionEnterExceptionAllowed(JavaThread* thr)

   197 {

   198   if (thr->in_critical()) {

   199     tty->print_cr("%s", warn_other_function_in_critical);

   200   }

   201 }

   203 static inline void

   204 functionExit(JNIEnv *env)

   205 {

   206   /* nothing to do at this time */

   207 }

   209 static inline void

   210 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)

   211 {

   212   fieldDescriptor fd;

   214   /* make sure it is a static field */

   215   if (!jfieldIDWorkaround::is_static_jfieldID(fid))

   216     ReportJNIFatalError(thr, fatal_should_be_static);

   218   /* validate the class being passed */

   219   ASSERT_OOPS_ALLOWED;

   220   Klass* k_oop = jniCheck::validate_class(thr, cls, false);

   222   /* check for proper subclass hierarchy */

   223   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);

   224   Klass* f_oop = id->holder();

   225   if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))

   226     ReportJNIFatalError(thr, fatal_wrong_static_field);

   228   /* check for proper field type */

   229   if (!id->find_local_field(&fd))

   230     ReportJNIFatalError(thr, fatal_static_field_not_found);

   231   if ((fd.field_type() != ftype) &&

   232       !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {

   233     ReportJNIFatalError(thr, fatal_static_field_mismatch);

   234   }

   235 }

   237 static inline void

   238 checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)

   239 {

   240   fieldDescriptor fd;

   242   /* make sure it is an instance field */

   243   if (jfieldIDWorkaround::is_static_jfieldID(fid))

   244     ReportJNIFatalError(thr, fatal_should_be_nonstatic);

   246   /* validate the object being passed and then get its class */

   247   ASSERT_OOPS_ALLOWED;

   248   oop oopObj = jniCheck::validate_object(thr, obj);

   249   if (!oopObj) {

   250     ReportJNIFatalError(thr, fatal_null_object);

   251   }

   252   Klass* k_oop = oopObj->klass();

   254   if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {

   255     ReportJNIFatalError(thr, fatal_wrong_field);

   256   }

   258   /* make sure the field exists */

   259   int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);

   260   if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))

   261     ReportJNIFatalError(thr, fatal_wrong_field);

   263   /* check for proper field type */

   264   if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,

   265                                                               false, &fd))

   266     ReportJNIFatalError(thr, fatal_instance_field_not_found);

   268   if ((fd.field_type() != ftype) &&

   269       !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {

   270     ReportJNIFatalError(thr, fatal_instance_field_mismatch);

   271   }

   272 }

   274 static inline void

   275 checkString(JavaThread* thr, jstring js)

   276 {

   277   ASSERT_OOPS_ALLOWED;

   278   oop s = jniCheck::validate_object(thr, js);

   279   if (!s || !java_lang_String::is_instance(s))

   280     ReportJNIFatalError(thr, fatal_non_string);

   281 }

   283 static inline arrayOop

   284 check_is_array(JavaThread* thr, jarray jArray)

   285 {

   286   ASSERT_OOPS_ALLOWED;

   287   arrayOop aOop;

   289   aOop = (arrayOop)jniCheck::validate_object(thr, jArray);

   290   if (aOop == NULL || !aOop->is_array()) {

   291     ReportJNIFatalError(thr, fatal_non_array);

   292   }

   293   return aOop;

   294 }

   296 static inline arrayOop

   297 check_is_primitive_array(JavaThread* thr, jarray jArray) {

   298   arrayOop aOop = check_is_array(thr, jArray);

   300   if (!aOop->is_typeArray()) {

   301      ReportJNIFatalError(thr, fatal_prim_type_array_expected);

   302   }

   303   return aOop;

   304 }

   306 static inline void

   307 check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)

   308 {

   309   BasicType array_type;

   310   arrayOop aOop;

   312   aOop = check_is_primitive_array(thr, jArray);

   313   array_type = TypeArrayKlass::cast(aOop->klass())->element_type();

   314   if (array_type != elementType) {

   315     ReportJNIFatalError(thr, fatal_element_type_mismatch);

   316   }

   317 }

   319 static inline void

   320 check_is_obj_array(JavaThread* thr, jarray jArray) {

   321   arrayOop aOop = check_is_array(thr, jArray);

   322   if (!aOop->is_objArray()) {

   323     ReportJNIFatalError(thr, fatal_object_array_expected);

   324   }

   325 }

   327 /*

   328  * Copy and wrap array elements for bounds checking.

   329  * Remember the original elements (GuardedMemory::get_tag())

   330  */

   331 static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,

   332     void* orig_elements) {

   333   void* result;

   334   IN_VM(

   335     oop a = JNIHandles::resolve_non_null(array);

   336     size_t len = arrayOop(a)->length() <<

   337         TypeArrayKlass::cast(a->klass())->log2_element_size();

   338     result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);

   339   )

   340   return result;

   341 }

   343 static void* check_wrapped_array(JavaThread* thr, const char* fn_name,

   344     void* obj, void* carray, size_t* rsz) {

   345   if (carray == NULL) {

   346     tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj));

   347     NativeReportJNIFatalError(thr, "Elements vector NULL");

   348   }

   349   GuardedMemory guarded(carray);

   350   void* orig_result = guarded.get_tag();

   351   if (!guarded.verify_guards()) {

   352     tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds "

   353         "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: "

   354         PTR_FORMAT, p2i(obj), p2i(carray));

   355     guarded.print_on(tty);

   356     NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "

   357         "failed bounds check");

   358   }

   359   if (orig_result == NULL) {

   360     tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: "

   361         PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray));

   362     guarded.print_on(tty);

   363     NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "

   364         "unrecognized elements");

   365   }

   366   if (rsz != NULL) {

   367     *rsz = guarded.get_user_size();

   368   }

   369   return orig_result;

   370 }

   372 static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,

   373     void* obj, void* carray, jint mode) {

   374   size_t sz;

   375   void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);

   376   switch (mode) {

   377   case 0:

   378     memcpy(orig_result, carray, sz);

   379     GuardedMemory::free_copy(carray);

   380     break;

   381   case JNI_COMMIT:

   382     memcpy(orig_result, carray, sz);

   383     break;

   384   case JNI_ABORT:

   385     GuardedMemory::free_copy(carray);

   386     break;

   387   default:

   388     tty->print_cr("%s: Unrecognized mode %i releasing array "

   389         PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));

   390     NativeReportJNIFatalError(thr, "Unrecognized array release mode");

   391   }

   392   return orig_result;

   393 }

   395 oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {

   396   if (JNIHandles::is_frame_handle(thr, obj) ||

   397       JNIHandles::is_local_handle(thr, obj) ||

   398       JNIHandles::is_global_handle(obj) ||

   399       JNIHandles::is_weak_global_handle(obj)) {

   400     ASSERT_OOPS_ALLOWED;

   401     return JNIHandles::resolve_external_guard(obj);

   402   }

   403   ReportJNIFatalError(thr, fatal_bad_ref_to_jni);

   404   return NULL;

   405 }

   408 Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) {

   409   ASSERT_OOPS_ALLOWED;

   410   // do the fast jmethodID check first

   411   Method* moop = Method::checked_resolve_jmethod_id(method_id);

   412   if (moop == NULL) {

   413     ReportJNIFatalError(thr, fatal_wrong_class_or_method);

   414   }

   415   // jmethodIDs are supposed to be weak handles in the class loader data,

   416   // but that can be expensive so check it last

   417   else if (!Method::is_method_id(method_id)) {

   418     ReportJNIFatalError(thr, fatal_non_weak_method);

   419   }

   420   return moop;

   421 }

   424 oop jniCheck::validate_object(JavaThread* thr, jobject obj) {

   425     if (!obj)

   426         return NULL;

   427     ASSERT_OOPS_ALLOWED;

   428     oop oopObj = jniCheck::validate_handle(thr, obj);

   429     if (!oopObj) {

   430       ReportJNIFatalError(thr, fatal_bad_ref_to_jni);

   431     }

   432     return oopObj;

   433 }

   435 // Warn if a class descriptor is in decorated form; class descriptors

   436 // passed to JNI findClass should not be decorated unless they are

   437 // array descriptors.

   438 void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {

   439   if (name == NULL) return;  // implementation accepts NULL so just return

   441   size_t len = strlen(name);

   443   if (len >= 2 &&

   444       name[0] == JVM_SIGNATURE_CLASS &&            // 'L'

   445       name[len-1] == JVM_SIGNATURE_ENDCLASS ) {    // ';'

   446     char msg[JVM_MAXPATHLEN];

   447     jio_snprintf(msg, JVM_MAXPATHLEN, warn_bad_class_descriptor, name);

   448     ReportJNIWarning(thr, msg);

   449   }

   450 }

   452 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {

   453   ASSERT_OOPS_ALLOWED;

   454   oop mirror = jniCheck::validate_handle(thr, clazz);

   455   if (!mirror) {

   456     ReportJNIFatalError(thr, fatal_received_null_class);

   457   }

   459   if (mirror->klass() != SystemDictionary::Class_klass()) {

   460     ReportJNIFatalError(thr, fatal_class_not_a_class);

   461   }

   463   Klass* k = java_lang_Class::as_Klass(mirror);

   464   // Make allowances for primitive classes ...

   465   if (!(k != NULL || allow_primitive && java_lang_Class::is_primitive(mirror))) {

   466     ReportJNIFatalError(thr, fatal_class_not_a_class);

   467   }

   468   return k;

   469 }

   471 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {

   472   ASSERT_OOPS_ALLOWED;

   473   assert(klass != NULL, "klass argument must have a value");

   475   if (!klass->oop_is_instance() ||

   476       !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) {

   477     ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);

   478   }

   479 }

   481 void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) {

   482   /* validate the object being passed */

   483   ASSERT_OOPS_ALLOWED;

   484   jniCheck::validate_jmethod_id(thr, method_id);

   485   jniCheck::validate_object(thr, obj);

   486 }

   488 void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) {

   489   /* validate the class being passed */

   490   ASSERT_OOPS_ALLOWED;

   491   jniCheck::validate_jmethod_id(thr, method_id);

   492   jniCheck::validate_class(thr, clazz, false);

   493 }

   496 /*

   497  * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE

   498  */

   500 JNI_ENTRY_CHECKED(jclass,

   501   checked_jni_DefineClass(JNIEnv *env,

   502                           const char *name,

   503                           jobject loader,

   504                           const jbyte *buf,

   505                           jsize len))

   506     functionEnter(thr);

   507     IN_VM(

   508       jniCheck::validate_object(thr, loader);

   509     )

   510     jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);

   511     functionExit(env);

   512     return result;

   513 JNI_END

   515 JNI_ENTRY_CHECKED(jclass,

   516   checked_jni_FindClass(JNIEnv *env,

   517                         const char *name))

   518     functionEnter(thr);

   519     IN_VM(

   520       jniCheck::validate_class_descriptor(thr, name);

   521     )

   522     jclass result = UNCHECKED()->FindClass(env, name);

   523     functionExit(env);

   524     return result;

   525 JNI_END

   527 JNI_ENTRY_CHECKED(jmethodID,

   528   checked_jni_FromReflectedMethod(JNIEnv *env,

   529                                   jobject method))

   530     functionEnter(thr);

   531     IN_VM(

   532       jniCheck::validate_object(thr, method);

   533     )

   534     jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);

   535     functionExit(env);

   536     return result;

   537 JNI_END

   539 JNI_ENTRY_CHECKED(jfieldID,

   540   checked_jni_FromReflectedField(JNIEnv *env,

   541                                  jobject field))

   542     functionEnter(thr);

   543     IN_VM(

   544       jniCheck::validate_object(thr, field);

   545     )

   546     jfieldID result = UNCHECKED()->FromReflectedField(env, field);

   547     functionExit(env);

   548     return result;

   549 JNI_END

   551 JNI_ENTRY_CHECKED(jobject,

   552   checked_jni_ToReflectedMethod(JNIEnv *env,

   553                                 jclass cls,

   554                                 jmethodID methodID,

   555                                 jboolean isStatic))

   556     functionEnter(thr);

   557     IN_VM(

   558       jniCheck::validate_class(thr, cls, false);

   559       jniCheck::validate_jmethod_id(thr, methodID);

   560     )

   561     jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,

   562                                                     isStatic);

   563     functionExit(env);

   564     return result;

   565 JNI_END

   567 JNI_ENTRY_CHECKED(jclass,

   568   checked_jni_GetSuperclass(JNIEnv *env,

   569                             jclass sub))

   570     functionEnter(thr);

   571     IN_VM(

   572       jniCheck::validate_class(thr, sub, true);

   573     )

   574     jclass result = UNCHECKED()->GetSuperclass(env, sub);

   575     functionExit(env);

   576     return result;

   577 JNI_END

   579 JNI_ENTRY_CHECKED(jboolean,

   580   checked_jni_IsAssignableFrom(JNIEnv *env,

   581                                jclass sub,

   582                                jclass sup))

   583     functionEnter(thr);

   584     IN_VM(

   585       jniCheck::validate_class(thr, sub, true);

   586       jniCheck::validate_class(thr, sup, true);

   587     )

   588     jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);

   589     functionExit(env);

   590     return result;

   591 JNI_END

   593 JNI_ENTRY_CHECKED(jobject,

   594   checked_jni_ToReflectedField(JNIEnv *env,

   595                                jclass cls,

   596                                jfieldID fieldID,

   597                                jboolean isStatic))

   598     functionEnter(thr);

   599     IN_VM(

   600       jniCheck::validate_class(thr, cls, false);

   601     )

   602     jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,

   603                                                    isStatic);

   604     functionExit(env);

   605     return result;

   606 JNI_END

   608 JNI_ENTRY_CHECKED(jint,

   609   checked_jni_Throw(JNIEnv *env,

   610                     jthrowable obj))

   611     functionEnter(thr);

   612     IN_VM(

   613       oop oopObj = jniCheck::validate_object(thr, obj);

   614       if (oopObj == NULL) {

   615         // Unchecked Throw tolerates a NULL obj, so just warn

   616         ReportJNIWarning(thr, "JNI Throw called with NULL throwable");

   617       } else {

   618         jniCheck::validate_throwable_klass(thr, oopObj->klass());

   619       }

   620     )

   621     jint result = UNCHECKED()->Throw(env, obj);

   622     functionExit(env);

   623     return result;

   624 JNI_END

   626 JNI_ENTRY_CHECKED(jint,

   627   checked_jni_ThrowNew(JNIEnv *env,

   628                        jclass clazz,

   629                        const char *msg))

   630     functionEnter(thr);

   631     IN_VM(

   632       Klass* k = jniCheck::validate_class(thr, clazz, false);

   633       assert(k != NULL, "validate_class shouldn't return NULL Klass*");

   634       jniCheck::validate_throwable_klass(thr, k);

   635     )

   636     jint result = UNCHECKED()->ThrowNew(env, clazz, msg);

   637     functionExit(env);

   638     return result;

   639 JNI_END

   641 JNI_ENTRY_CHECKED(jthrowable,

   642   checked_jni_ExceptionOccurred(JNIEnv *env))

   643     functionEnterExceptionAllowed(thr);

   644     jthrowable result = UNCHECKED()->ExceptionOccurred(env);

   645     functionExit(env);

   646     return result;

   647 JNI_END

   649 JNI_ENTRY_CHECKED(void,

   650   checked_jni_ExceptionDescribe(JNIEnv *env))

   651     functionEnterExceptionAllowed(thr);

   652     UNCHECKED()->ExceptionDescribe(env);

   653     functionExit(env);

   654 JNI_END

   656 JNI_ENTRY_CHECKED(void,

   657   checked_jni_ExceptionClear(JNIEnv *env))

   658     functionEnterExceptionAllowed(thr);

   659     UNCHECKED()->ExceptionClear(env);

   660     functionExit(env);

   661 JNI_END

   663 JNI_ENTRY_CHECKED(void,

   664   checked_jni_FatalError(JNIEnv *env,

   665                          const char *msg))

   666     functionEnter(thr);

   667     UNCHECKED()->FatalError(env, msg);

   668     functionExit(env);

   669 JNI_END

   671 JNI_ENTRY_CHECKED(jint,

   672   checked_jni_PushLocalFrame(JNIEnv *env,

   673                              jint capacity))

   674     functionEnterExceptionAllowed(thr);

   675     if (capacity < 0)

   676       NativeReportJNIFatalError(thr, "negative capacity");

   677     jint result = UNCHECKED()->PushLocalFrame(env, capacity);

   678     functionExit(env);

   679     return result;

   680 JNI_END

   682 JNI_ENTRY_CHECKED(jobject,

   683   checked_jni_PopLocalFrame(JNIEnv *env,

   684                             jobject result))

   685     functionEnterExceptionAllowed(thr);

   686     jobject res = UNCHECKED()->PopLocalFrame(env, result);

   687     functionExit(env);

   688     return res;

   689 JNI_END

   691 JNI_ENTRY_CHECKED(jobject,

   692   checked_jni_NewGlobalRef(JNIEnv *env,

   693                            jobject lobj))

   694     functionEnter(thr);

   695     IN_VM(

   696       if (lobj != NULL) {

   697         jniCheck::validate_handle(thr, lobj);

   698       }

   699     )

   700     jobject result = UNCHECKED()->NewGlobalRef(env,lobj);

   701     functionExit(env);

   702     return result;

   703 JNI_END

   705 JNI_ENTRY_CHECKED(void,

   706   checked_jni_DeleteGlobalRef(JNIEnv *env,

   707                               jobject gref))

   708     functionEnterExceptionAllowed(thr);

   709     IN_VM(

   710       jniCheck::validate_object(thr, gref);

   711       if (gref && !JNIHandles::is_global_handle(gref)) {

   712         ReportJNIFatalError(thr,

   713             "Invalid global JNI handle passed to DeleteGlobalRef");

   714       }

   715     )

   716     UNCHECKED()->DeleteGlobalRef(env,gref);

   717     functionExit(env);

   718 JNI_END

   720 JNI_ENTRY_CHECKED(void,

   721   checked_jni_DeleteLocalRef(JNIEnv *env,

   722                              jobject obj))

   723     functionEnterExceptionAllowed(thr);

   724     IN_VM(

   725       jniCheck::validate_object(thr, obj);

   726       if (obj && !(JNIHandles::is_local_handle(thr, obj) ||

   727                    JNIHandles::is_frame_handle(thr, obj)))

   728         ReportJNIFatalError(thr,

   729             "Invalid local JNI handle passed to DeleteLocalRef");

   730     )

   731     UNCHECKED()->DeleteLocalRef(env, obj);

   732     functionExit(env);

   733 JNI_END

   735 JNI_ENTRY_CHECKED(jboolean,

   736   checked_jni_IsSameObject(JNIEnv *env,

   737                            jobject obj1,

   738                            jobject obj2))

   739     functionEnterExceptionAllowed(thr);

   740     IN_VM(

   741       /* This JNI function can be used to compare weak global references

   742        * to NULL objects. If the handles are valid, but contain NULL,

   743        * then don't attempt to validate the object.

   744        */

   745       if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {

   746         jniCheck::validate_object(thr, obj1);

   747       }

   748       if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {

   749         jniCheck::validate_object(thr, obj2);

   750       }

   751     )

   752     jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);

   753     functionExit(env);

   754     return result;

   755 JNI_END

   757 JNI_ENTRY_CHECKED(jobject,

   758   checked_jni_NewLocalRef(JNIEnv *env,

   759                           jobject ref))

   760     functionEnter(thr);

   761     IN_VM(

   762       if (ref != NULL) {

   763         jniCheck::validate_handle(thr, ref);

   764       }

   765     )

   766     jobject result = UNCHECKED()->NewLocalRef(env, ref);

   767     functionExit(env);

   768     return result;

   769 JNI_END

   771 JNI_ENTRY_CHECKED(jint,

   772   checked_jni_EnsureLocalCapacity(JNIEnv *env,

   773                                   jint capacity))

   774     functionEnter(thr);

   775     if (capacity < 0) {

   776       NativeReportJNIFatalError(thr, "negative capacity");

   777     }

   778     jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);

   779     functionExit(env);

   780     return result;

   781 JNI_END

   783 JNI_ENTRY_CHECKED(jobject,

   784   checked_jni_AllocObject(JNIEnv *env,

   785                           jclass clazz))

   786     functionEnter(thr);

   787     IN_VM(

   788       jniCheck::validate_class(thr, clazz, false);

   789     )

   790     jobject result = UNCHECKED()->AllocObject(env,clazz);

   791     functionExit(env);

   792     return result;

   793 JNI_END

   795 JNI_ENTRY_CHECKED(jobject,

   796   checked_jni_NewObject(JNIEnv *env,

   797                         jclass clazz,

   798                         jmethodID methodID,

   799                         ...))

   800     functionEnter(thr);

   801     va_list args;

   802     IN_VM(

   803       jniCheck::validate_class(thr, clazz, false);

   804       jniCheck::validate_jmethod_id(thr, methodID);

   805     )

   806     va_start(args, methodID);

   807     jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);

   808     va_end(args);

   809     functionExit(env);

   810     return result;

   811 JNI_END

   813 JNI_ENTRY_CHECKED(jobject,

   814   checked_jni_NewObjectV(JNIEnv *env,

   815                          jclass clazz,

   816                          jmethodID methodID,

   817                          va_list args))

   818     functionEnter(thr);

   819     IN_VM(

   820       jniCheck::validate_class(thr, clazz, false);

   821       jniCheck::validate_jmethod_id(thr, methodID);

   822     )

   823     jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);

   824     functionExit(env);

   825     return result;

   826 JNI_END

   828 JNI_ENTRY_CHECKED(jobject,

   829   checked_jni_NewObjectA(JNIEnv *env,

   830                          jclass clazz,

   831                          jmethodID methodID,

   832                          const jvalue *args))

   833     functionEnter(thr);

   834     IN_VM(

   835       jniCheck::validate_class(thr, clazz, false);

   836       jniCheck::validate_jmethod_id(thr, methodID);

   837     )

   838     jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);

   839     functionExit(env);

   840     return result;

   841 JNI_END

   843 JNI_ENTRY_CHECKED(jclass,

   844   checked_jni_GetObjectClass(JNIEnv *env,

   845                              jobject obj))

   846     functionEnter(thr);

   847     IN_VM(

   848       jniCheck::validate_object(thr, obj);

   849     )

   850     jclass result = UNCHECKED()->GetObjectClass(env,obj);

   851     functionExit(env);

   852     return result;

   853 JNI_END

   855 JNI_ENTRY_CHECKED(jboolean,

   856   checked_jni_IsInstanceOf(JNIEnv *env,

   857                            jobject obj,

   858                            jclass clazz))

   859     functionEnter(thr);

   860     IN_VM(

   861       jniCheck::validate_object(thr, obj);

   862       jniCheck::validate_class(thr, clazz, true);

   863     )

   864     jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);

   865     functionExit(env);

   866     return result;

   867 JNI_END

   869 JNI_ENTRY_CHECKED(jmethodID,

   870   checked_jni_GetMethodID(JNIEnv *env,

   871                           jclass clazz,

   872                           const char *name,

   873                           const char *sig))

   874     functionEnter(thr);

   875     IN_VM(

   876       jniCheck::validate_class(thr, clazz, false);

   877     )

   878     jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);

   879     functionExit(env);

   880     return result;

   881 JNI_END

   883 #define WRAPPER_CallMethod(ResultType, Result) \

   884 JNI_ENTRY_CHECKED(ResultType,  \

   885   checked_jni_Call##Result##Method(JNIEnv *env, \

   886                                    jobject obj, \

   887                                    jmethodID methodID, \

   888                                    ...)) \

   889     functionEnter(thr); \

   890     va_list args; \

   891     IN_VM( \

   892       jniCheck::validate_call_object(thr, obj, methodID); \

   893     ) \

   894     va_start(args,methodID); \

   895     ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \

   896                                                           args); \

   897     va_end(args); \

   898     functionExit(env); \

   899     return result; \

   900 JNI_END \

   901 \

   902 JNI_ENTRY_CHECKED(ResultType,  \

   903   checked_jni_Call##Result##MethodV(JNIEnv *env, \

   904                                     jobject obj, \

   905                                     jmethodID methodID, \

   906                                     va_list args)) \

   907     functionEnter(thr); \

   908     IN_VM(\

   909       jniCheck::validate_call_object(thr, obj, methodID); \

   910     ) \

   911     ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\

   912                                                            args); \

   913     functionExit(env); \

   914     return result; \

   915 JNI_END \

   916 \

   917 JNI_ENTRY_CHECKED(ResultType,  \

   918   checked_jni_Call##Result##MethodA(JNIEnv *env, \

   919                                     jobject obj, \

   920                                     jmethodID methodID, \

   921                                     const jvalue * args)) \

   922     functionEnter(thr); \

   923     IN_VM( \

   924       jniCheck::validate_call_object(thr, obj, methodID); \

   925     ) \

   926     ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\

   927                                                            args); \

   928     functionExit(env); \

   929     return result; \

   930 JNI_END

   932 WRAPPER_CallMethod(jobject,Object)

   933 WRAPPER_CallMethod(jboolean,Boolean)

   934 WRAPPER_CallMethod(jbyte,Byte)

   935 WRAPPER_CallMethod(jshort,Short)

   936 WRAPPER_CallMethod(jchar,Char)

   937 WRAPPER_CallMethod(jint,Int)

   938 WRAPPER_CallMethod(jlong,Long)

   939 WRAPPER_CallMethod(jfloat,Float)

   940 WRAPPER_CallMethod(jdouble,Double)

   942 JNI_ENTRY_CHECKED(void,

   943   checked_jni_CallVoidMethod(JNIEnv *env, \

   944                              jobject obj, \

   945                              jmethodID methodID, \

   946                              ...))

   947     functionEnter(thr);

   948     va_list args;

   949     IN_VM(

   950       jniCheck::validate_call_object(thr, obj, methodID);

   951     )

   952     va_start(args,methodID);

   953     UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);

   954     va_end(args);

   955     functionExit(env);

   956 JNI_END

   958 JNI_ENTRY_CHECKED(void,

   959   checked_jni_CallVoidMethodV(JNIEnv *env,

   960                               jobject obj,

   961                               jmethodID methodID,

   962                               va_list args))

   963     functionEnter(thr);

   964     IN_VM(

   965       jniCheck::validate_call_object(thr, obj, methodID);

   966     )

   967     UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);

   968     functionExit(env);

   969 JNI_END

   971 JNI_ENTRY_CHECKED(void,

   972   checked_jni_CallVoidMethodA(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     UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);

   981     functionExit(env);

   982 JNI_END

   984 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \

   985 JNI_ENTRY_CHECKED(ResultType,  \

   986   checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \

   987                                              jobject obj, \

   988                                              jclass clazz, \

   989                                              jmethodID methodID, \

   990                                              ...)) \

   991     functionEnter(thr); \

   992     va_list args; \

   993     IN_VM( \

   994       jniCheck::validate_call_object(thr, obj, methodID); \

   995       jniCheck::validate_call_class(thr, clazz, methodID); \

   996     ) \

   997     va_start(args,methodID); \

   998     ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \

   999                                                                      obj, \

  1000                                                                      clazz, \

  1001                                                                      methodID,\

  1002                                                                      args); \

  1003     va_end(args); \

  1004     functionExit(env); \

  1005     return result; \

  1006 JNI_END \

  1007 \

  1008 JNI_ENTRY_CHECKED(ResultType,  \

  1009   checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \

  1010                                               jobject obj, \

  1011                                               jclass clazz, \

  1012                                               jmethodID methodID, \

  1013                                               va_list args)) \

  1014     functionEnter(thr); \

  1015     IN_VM( \

  1016       jniCheck::validate_call_object(thr, obj, methodID); \

  1017       jniCheck::validate_call_class(thr, clazz, methodID); \

  1018     ) \

  1019     ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \

  1020                                                                      obj, \

  1021                                                                      clazz, \

  1022                                                                      methodID,\

  1023                                                                      args); \

  1024     functionExit(env); \

  1025     return result; \

  1026 JNI_END \

  1027 \

  1028 JNI_ENTRY_CHECKED(ResultType,  \

  1029   checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \

  1030                                               jobject obj, \

  1031                                               jclass clazz, \

  1032                                               jmethodID methodID, \

  1033                                               const jvalue * args)) \

  1034     functionEnter(thr); \

  1035     IN_VM( \

  1036       jniCheck::validate_call_object(thr, obj, methodID); \

  1037       jniCheck::validate_call_class(thr, clazz, methodID); \

  1038     ) \

  1039     ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \

  1040                                                                      obj, \

  1041                                                                      clazz, \

  1042                                                                      methodID,\

  1043                                                                      args); \

  1044     functionExit(env); \

  1045     return result; \

  1046 JNI_END

  1048 WRAPPER_CallNonvirtualMethod(jobject,Object)

  1049 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)

  1050 WRAPPER_CallNonvirtualMethod(jbyte,Byte)

  1051 WRAPPER_CallNonvirtualMethod(jshort,Short)

  1052 WRAPPER_CallNonvirtualMethod(jchar,Char)

  1053 WRAPPER_CallNonvirtualMethod(jint,Int)

  1054 WRAPPER_CallNonvirtualMethod(jlong,Long)

  1055 WRAPPER_CallNonvirtualMethod(jfloat,Float)

  1056 WRAPPER_CallNonvirtualMethod(jdouble,Double)

  1058 JNI_ENTRY_CHECKED(void,

  1059   checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,

  1060                                        jobject obj,

  1061                                        jclass clazz,

  1062                                        jmethodID methodID,

  1063                                        ...))

  1064     functionEnter(thr);

  1065     va_list args;

  1066     IN_VM(

  1067       jniCheck::validate_call_object(thr, obj, methodID);

  1068       jniCheck::validate_call_class(thr, clazz, methodID);

  1069     )

  1070     va_start(args,methodID);

  1071     UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);

  1072     va_end(args);

  1073     functionExit(env);

  1074 JNI_END

  1076 JNI_ENTRY_CHECKED(void,

  1077   checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,

  1078                                         jobject obj,

  1079                                         jclass clazz,

  1080                                         jmethodID methodID,

  1081                                         va_list args))

  1082     functionEnter(thr);

  1083     IN_VM(

  1084       jniCheck::validate_call_object(thr, obj, methodID);

  1085       jniCheck::validate_call_class(thr, clazz, methodID);

  1086     )

  1087     UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);

  1088     functionExit(env);

  1089 JNI_END

  1091 JNI_ENTRY_CHECKED(void,

  1092   checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,

  1093                                         jobject obj,

  1094                                         jclass clazz,

  1095                                         jmethodID methodID,

  1096                                         const jvalue * args))

  1097     functionEnter(thr);

  1098     IN_VM(

  1099       jniCheck::validate_call_object(thr, obj, methodID);

  1100       jniCheck::validate_call_class(thr, clazz, methodID);

  1101     )

  1102     UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);

  1103     functionExit(env);

  1104 JNI_END

  1106 JNI_ENTRY_CHECKED(jfieldID,

  1107   checked_jni_GetFieldID(JNIEnv *env,

  1108                          jclass clazz,

  1109                          const char *name,

  1110                          const char *sig))

  1111     functionEnter(thr);

  1112     IN_VM(

  1113       jniCheck::validate_class(thr, clazz, false);

  1114     )

  1115     jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);

  1116     functionExit(env);

  1117     return result;

  1118 JNI_END

  1120 #define WRAPPER_GetField(ReturnType,Result,FieldType) \

  1121 JNI_ENTRY_CHECKED(ReturnType,  \

  1122   checked_jni_Get##Result##Field(JNIEnv *env, \

  1123                                  jobject obj, \

  1124                                  jfieldID fieldID)) \

  1125     functionEnter(thr); \

  1126     IN_VM( \

  1127       checkInstanceFieldID(thr, fieldID, obj, FieldType); \

  1128     ) \

  1129     ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \

  1130     functionExit(env); \

  1131     return result; \

  1132 JNI_END

  1134 WRAPPER_GetField(jobject,  Object,  T_OBJECT)

  1135 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)

  1136 WRAPPER_GetField(jbyte,    Byte,    T_BYTE)

  1137 WRAPPER_GetField(jshort,   Short,   T_SHORT)

  1138 WRAPPER_GetField(jchar,    Char,    T_CHAR)

  1139 WRAPPER_GetField(jint,     Int,     T_INT)

  1140 WRAPPER_GetField(jlong,    Long,    T_LONG)

  1141 WRAPPER_GetField(jfloat,   Float,   T_FLOAT)

  1142 WRAPPER_GetField(jdouble,  Double,  T_DOUBLE)

  1144 #define WRAPPER_SetField(ValueType,Result,FieldType) \

  1145 JNI_ENTRY_CHECKED(void,  \

  1146   checked_jni_Set##Result##Field(JNIEnv *env, \

  1147                                  jobject obj, \

  1148                                  jfieldID fieldID, \

  1149                                  ValueType val)) \

  1150     functionEnter(thr); \

  1151     IN_VM( \

  1152       checkInstanceFieldID(thr, fieldID, obj, FieldType); \

  1153     ) \

  1154     UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \

  1155     functionExit(env); \

  1156 JNI_END

  1158 WRAPPER_SetField(jobject,  Object,  T_OBJECT)

  1159 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)

  1160 WRAPPER_SetField(jbyte,    Byte,    T_BYTE)

  1161 WRAPPER_SetField(jshort,   Short,   T_SHORT)

  1162 WRAPPER_SetField(jchar,    Char,    T_CHAR)

  1163 WRAPPER_SetField(jint,     Int,     T_INT)

  1164 WRAPPER_SetField(jlong,    Long,    T_LONG)

  1165 WRAPPER_SetField(jfloat,   Float,   T_FLOAT)

  1166 WRAPPER_SetField(jdouble,  Double,  T_DOUBLE)

  1169 JNI_ENTRY_CHECKED(jmethodID,

  1170   checked_jni_GetStaticMethodID(JNIEnv *env,

  1171                                 jclass clazz,

  1172                                 const char *name,

  1173                                 const char *sig))

  1174     functionEnter(thr);

  1175     IN_VM(

  1176       jniCheck::validate_class(thr, clazz, false);

  1177     )

  1178     jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);

  1179     functionExit(env);

  1180     return result;

  1181 JNI_END

  1183 #define WRAPPER_CallStaticMethod(ReturnType,Result) \

  1184 JNI_ENTRY_CHECKED(ReturnType,  \

  1185   checked_jni_CallStatic##Result##Method(JNIEnv *env, \

  1186                                          jclass clazz, \

  1187                                          jmethodID methodID, \

  1188                                          ...)) \

  1189     functionEnter(thr); \

  1190     va_list args; \

  1191     IN_VM( \

  1192       jniCheck::validate_jmethod_id(thr, methodID); \

  1193       jniCheck::validate_class(thr, clazz, false); \

  1194     ) \

  1195     va_start(args,methodID); \

  1196     ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \

  1197                                                                  clazz, \

  1198                                                                  methodID, \

  1199                                                                  args); \

  1200     va_end(args); \

  1201     functionExit(env); \

  1202     return result; \

  1203 JNI_END \

  1204 \

  1205 JNI_ENTRY_CHECKED(ReturnType,  \

  1206   checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \

  1207                                           jclass clazz, \

  1208                                           jmethodID methodID,\

  1209                                           va_list args)) \

  1210     functionEnter(thr); \

  1211     IN_VM( \

  1212       jniCheck::validate_jmethod_id(thr, methodID); \

  1213       jniCheck::validate_class(thr, clazz, false); \

  1214     ) \

  1215     ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \

  1216                                                                  clazz, \

  1217                                                                  methodID, \

  1218                                                                  args); \

  1219     functionExit(env); \

  1220     return result; \

  1221 JNI_END \

  1222 \

  1223 JNI_ENTRY_CHECKED(ReturnType,  \

  1224   checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \

  1225                                           jclass clazz, \

  1226                                           jmethodID methodID, \

  1227                                           const jvalue *args)) \

  1228     functionEnter(thr); \

  1229     IN_VM( \

  1230       jniCheck::validate_jmethod_id(thr, methodID); \

  1231       jniCheck::validate_class(thr, clazz, false); \

  1232     ) \

  1233     ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \

  1234                                                                  clazz, \

  1235                                                                  methodID, \

  1236                                                                  args); \

  1237     functionExit(env); \

  1238     return result; \

  1239 JNI_END

  1241 WRAPPER_CallStaticMethod(jobject,Object)

  1242 WRAPPER_CallStaticMethod(jboolean,Boolean)

  1243 WRAPPER_CallStaticMethod(jbyte,Byte)

  1244 WRAPPER_CallStaticMethod(jshort,Short)

  1245 WRAPPER_CallStaticMethod(jchar,Char)

  1246 WRAPPER_CallStaticMethod(jint,Int)

  1247 WRAPPER_CallStaticMethod(jlong,Long)

  1248 WRAPPER_CallStaticMethod(jfloat,Float)

  1249 WRAPPER_CallStaticMethod(jdouble,Double)

  1251 JNI_ENTRY_CHECKED(void,

  1252   checked_jni_CallStaticVoidMethod(JNIEnv *env,

  1253                                    jclass cls,

  1254                                    jmethodID methodID,

  1255                                    ...))

  1256     functionEnter(thr);

  1257     va_list args;

  1258     IN_VM(

  1259       jniCheck::validate_jmethod_id(thr, methodID);

  1260       jniCheck::validate_class(thr, cls, false);

  1261     )

  1262     va_start(args,methodID);

  1263     UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);

  1264     va_end(args);

  1265     functionExit(env);

  1266 JNI_END

  1268 JNI_ENTRY_CHECKED(void,

  1269   checked_jni_CallStaticVoidMethodV(JNIEnv *env,

  1270                                     jclass cls,

  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, cls, false);

  1277     )

  1278     UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);

  1279     functionExit(env);

  1280 JNI_END

  1282 JNI_ENTRY_CHECKED(void,

  1283   checked_jni_CallStaticVoidMethodA(JNIEnv *env,

  1284                                     jclass cls,

  1285                                     jmethodID methodID,

  1286                                     const jvalue * args))

  1287     functionEnter(thr);

  1288     IN_VM(

  1289       jniCheck::validate_jmethod_id(thr, methodID);

  1290       jniCheck::validate_class(thr, cls, false);

  1291     )

  1292     UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);

  1293     functionExit(env);

  1294 JNI_END

  1296 JNI_ENTRY_CHECKED(jfieldID,

  1297   checked_jni_GetStaticFieldID(JNIEnv *env,

  1298                                jclass clazz,

  1299                                const char *name,

  1300                                const char *sig))

  1301     functionEnter(thr);

  1302     IN_VM(

  1303       jniCheck::validate_class(thr, clazz, false);

  1304     )

  1305     jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);

  1306     functionExit(env);

  1307     return result;

  1308 JNI_END

  1310 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \

  1311 JNI_ENTRY_CHECKED(ReturnType,  \

  1312   checked_jni_GetStatic##Result##Field(JNIEnv *env, \

  1313                                        jclass clazz, \

  1314                                        jfieldID fieldID)) \

  1315     functionEnter(thr); \

  1316     IN_VM( \

  1317       jniCheck::validate_class(thr, clazz, false); \

  1318       checkStaticFieldID(thr, fieldID, clazz, FieldType); \

  1319     ) \

  1320     ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \

  1321                                                               clazz, \

  1322                                                               fieldID); \

  1323     functionExit(env); \

  1324     return result; \

  1325 JNI_END

  1327 WRAPPER_GetStaticField(jobject,  Object,  T_OBJECT)

  1328 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)

  1329 WRAPPER_GetStaticField(jbyte,    Byte,    T_BYTE)

  1330 WRAPPER_GetStaticField(jshort,   Short,   T_SHORT)

  1331 WRAPPER_GetStaticField(jchar,    Char,    T_CHAR)

  1332 WRAPPER_GetStaticField(jint,     Int,     T_INT)

  1333 WRAPPER_GetStaticField(jlong,    Long,    T_LONG)

  1334 WRAPPER_GetStaticField(jfloat,   Float,   T_FLOAT)

  1335 WRAPPER_GetStaticField(jdouble,  Double,  T_DOUBLE)

  1337 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \

  1338 JNI_ENTRY_CHECKED(void,  \

  1339   checked_jni_SetStatic##Result##Field(JNIEnv *env, \

  1340                                        jclass clazz, \

  1341                                        jfieldID fieldID, \

  1342                                        ValueType value)) \

  1343     functionEnter(thr); \

  1344     IN_VM( \

  1345       jniCheck::validate_class(thr, clazz, false); \

  1346       checkStaticFieldID(thr, fieldID, clazz, FieldType); \

  1347     ) \

  1348     UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \

  1349     functionExit(env); \

  1350 JNI_END

  1352 WRAPPER_SetStaticField(jobject,  Object,  T_OBJECT)

  1353 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)

  1354 WRAPPER_SetStaticField(jbyte,    Byte,    T_BYTE)

  1355 WRAPPER_SetStaticField(jshort,   Short,   T_SHORT)

  1356 WRAPPER_SetStaticField(jchar,    Char,    T_CHAR)

  1357 WRAPPER_SetStaticField(jint,     Int,     T_INT)

  1358 WRAPPER_SetStaticField(jlong,    Long,    T_LONG)

  1359 WRAPPER_SetStaticField(jfloat,   Float,   T_FLOAT)

  1360 WRAPPER_SetStaticField(jdouble,  Double,  T_DOUBLE)

  1363 JNI_ENTRY_CHECKED(jstring,

  1364   checked_jni_NewString(JNIEnv *env,

  1365                         const jchar *unicode,

  1366                         jsize len))

  1367     functionEnter(thr);

  1368     jstring result = UNCHECKED()->NewString(env,unicode,len);

  1369     functionExit(env);

  1370     return result;

  1371 JNI_END

  1373 JNI_ENTRY_CHECKED(jsize,

  1374   checked_jni_GetStringLength(JNIEnv *env,

  1375                               jstring str))

  1376     functionEnter(thr);

  1377     IN_VM(

  1378       checkString(thr, str);

  1379     )

  1380     jsize result = UNCHECKED()->GetStringLength(env,str);

  1381     functionExit(env);

  1382     return result;

  1383 JNI_END

  1385 // Arbitrary (but well-known) tag

  1386 const void* STRING_TAG = (void*)0x47114711;

  1388 JNI_ENTRY_CHECKED(const jchar *,

  1389   checked_jni_GetStringChars(JNIEnv *env,

  1390                              jstring str,

  1391                              jboolean *isCopy))

  1392     functionEnter(thr);

  1393     IN_VM(

  1394       checkString(thr, str);

  1395     )

  1396     jchar* new_result = NULL;

  1397     const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);

  1398     assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");

  1399     if (result != NULL) {

  1400       size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination

  1401       len *= sizeof(jchar);

  1402       new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);

  1403       if (new_result == NULL) {

  1404         vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");

  1405       }

  1406       // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes

  1407       // Note that the dtrace arguments for the allocated memory will not match up with this solution.

  1408       FreeHeap((char*)result);

  1409     }

  1410     functionExit(env);

  1411     return new_result;

  1412 JNI_END

  1414 JNI_ENTRY_CHECKED(void,

  1415   checked_jni_ReleaseStringChars(JNIEnv *env,

  1416                                  jstring str,

  1417                                  const jchar *chars))

  1418     functionEnterExceptionAllowed(thr);

  1419     IN_VM(

  1420       checkString(thr, str);

  1421     )

  1422     if (chars == NULL) {

  1423        // still do the unchecked call to allow dtrace probes

  1424        UNCHECKED()->ReleaseStringChars(env,str,chars);

  1425     }

  1426     else {

  1427       GuardedMemory guarded((void*)chars);

  1428       if (!guarded.verify_guards()) {

  1429         tty->print_cr("ReleaseStringChars: release chars failed bounds check. "

  1430             "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));

  1431         guarded.print_on(tty);

  1432         NativeReportJNIFatalError(thr, "ReleaseStringChars: "

  1433             "release chars failed bounds check.");

  1434       }

  1435       if (guarded.get_tag() != STRING_TAG) {

  1436         tty->print_cr("ReleaseStringChars: called on something not allocated "

  1437             "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,

  1438             p2i(str), p2i(chars));

  1439         NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "

  1440             "not allocated by GetStringChars");

  1441       }

  1442        UNCHECKED()->ReleaseStringChars(env, str,

  1443            (const jchar*) guarded.release_for_freeing());

  1444     }

  1445     functionExit(env);

  1446 JNI_END

  1448 JNI_ENTRY_CHECKED(jstring,

  1449   checked_jni_NewStringUTF(JNIEnv *env,

  1450                            const char *utf))

  1451     functionEnter(thr);

  1452     jstring result = UNCHECKED()->NewStringUTF(env,utf);

  1453     functionExit(env);

  1454     return result;

  1455 JNI_END

  1457 JNI_ENTRY_CHECKED(jsize,

  1458   checked_jni_GetStringUTFLength(JNIEnv *env,

  1459                                  jstring str))

  1460     functionEnter(thr);

  1461     IN_VM(

  1462       checkString(thr, str);

  1463     )

  1464     jsize result = UNCHECKED()->GetStringUTFLength(env,str);

  1465     functionExit(env);

  1466     return result;

  1467 JNI_END

  1469 // Arbitrary (but well-known) tag - different than GetStringChars

  1470 const void* STRING_UTF_TAG = (void*) 0x48124812;

  1472 JNI_ENTRY_CHECKED(const char *,

  1473   checked_jni_GetStringUTFChars(JNIEnv *env,

  1474                                 jstring str,

  1475                                 jboolean *isCopy))

  1476     functionEnter(thr);

  1477     IN_VM(

  1478       checkString(thr, str);

  1479     )

  1480     char* new_result = NULL;

  1481     const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);

  1482     assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");

  1483     if (result != NULL) {

  1484       size_t len = strlen(result) + 1; // + 1 for NULL termination

  1485       new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);

  1486       if (new_result == NULL) {

  1487         vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");

  1488       }

  1489       // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes

  1490       // Note that the dtrace arguments for the allocated memory will not match up with this solution.

  1491       FreeHeap((char*)result, mtInternal);

  1492     }

  1493     functionExit(env);

  1494     return new_result;

  1495 JNI_END

  1497 JNI_ENTRY_CHECKED(void,

  1498   checked_jni_ReleaseStringUTFChars(JNIEnv *env,

  1499                                     jstring str,

  1500                                     const char* chars))

  1501     functionEnterExceptionAllowed(thr);

  1502     IN_VM(

  1503       checkString(thr, str);

  1504     )

  1505     if (chars == NULL) {

  1506        // still do the unchecked call to allow dtrace probes

  1507        UNCHECKED()->ReleaseStringUTFChars(env,str,chars);

  1508     }

  1509     else {

  1510       GuardedMemory guarded((void*)chars);

  1511       if (!guarded.verify_guards()) {

  1512         tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "

  1513             "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));

  1514         guarded.print_on(tty);

  1515         NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "

  1516             "release chars failed bounds check.");

  1517       }

  1518       if (guarded.get_tag() != STRING_UTF_TAG) {

  1519         tty->print_cr("ReleaseStringUTFChars: called on something not "

  1520             "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "

  1521             PTR_FORMAT, p2i(str), p2i(chars));

  1522         NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "

  1523             "called on something not allocated by GetStringUTFChars");

  1524       }

  1525       UNCHECKED()->ReleaseStringUTFChars(env, str,

  1526           (const char*) guarded.release_for_freeing());

  1527     }

  1528     functionExit(env);

  1529 JNI_END

  1531 JNI_ENTRY_CHECKED(jsize,

  1532   checked_jni_GetArrayLength(JNIEnv *env,

  1533                              jarray array))

  1534     functionEnter(thr);

  1535     IN_VM(

  1536       check_is_array(thr, array);

  1537     )

  1538     jsize result = UNCHECKED()->GetArrayLength(env,array);

  1539     functionExit(env);

  1540     return result;

  1541 JNI_END

  1543 JNI_ENTRY_CHECKED(jobjectArray,

  1544   checked_jni_NewObjectArray(JNIEnv *env,

  1545                              jsize len,

  1546                              jclass clazz,

  1547                              jobject init))

  1548     functionEnter(thr);

  1549     jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);

  1550     functionExit(env);

  1551     return result;

  1552 JNI_END

  1554 JNI_ENTRY_CHECKED(jobject,

  1555   checked_jni_GetObjectArrayElement(JNIEnv *env,

  1556                                     jobjectArray array,

  1557                                     jsize index))

  1558     functionEnter(thr);

  1559     IN_VM(

  1560       check_is_obj_array(thr, array);

  1561     )

  1562     jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);

  1563     functionExit(env);

  1564     return result;

  1565 JNI_END

  1567 JNI_ENTRY_CHECKED(void,

  1568   checked_jni_SetObjectArrayElement(JNIEnv *env,

  1569                                     jobjectArray array,

  1570                                     jsize index,

  1571                                     jobject val))

  1572     functionEnter(thr);

  1573     IN_VM(

  1574       check_is_obj_array(thr, array);

  1575     )

  1576     UNCHECKED()->SetObjectArrayElement(env,array,index,val);

  1577     functionExit(env);

  1578 JNI_END

  1580 #define WRAPPER_NewScalarArray(Return, Result) \

  1581 JNI_ENTRY_CHECKED(Return, \

  1582   checked_jni_New##Result##Array(JNIEnv *env, \

  1583                                  jsize len)) \

  1584     functionEnter(thr); \

  1585     Return result = UNCHECKED()->New##Result##Array(env,len); \

  1586     functionExit(env); \

  1587     return (Return) result; \

  1588 JNI_END

  1590 WRAPPER_NewScalarArray(jbooleanArray, Boolean)

  1591 WRAPPER_NewScalarArray(jbyteArray, Byte)

  1592 WRAPPER_NewScalarArray(jshortArray, Short)

  1593 WRAPPER_NewScalarArray(jcharArray, Char)

  1594 WRAPPER_NewScalarArray(jintArray, Int)

  1595 WRAPPER_NewScalarArray(jlongArray, Long)

  1596 WRAPPER_NewScalarArray(jfloatArray, Float)

  1597 WRAPPER_NewScalarArray(jdoubleArray, Double)

  1599 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \

  1600 JNI_ENTRY_CHECKED(ElementType *,  \

  1601   checked_jni_Get##Result##ArrayElements(JNIEnv *env, \

  1602                                          ElementType##Array array, \

  1603                                          jboolean *isCopy)) \

  1604     functionEnter(thr); \

  1605     IN_VM( \

  1606       check_primitive_array_type(thr, array, ElementTag); \

  1607     ) \

  1608     ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \

  1609                                                                   array, \

  1610                                                                   isCopy); \

  1611     if (result != NULL) { \

  1612       result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \

  1613     } \

  1614     functionExit(env); \

  1615     return result; \

  1616 JNI_END

  1618 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)

  1619 WRAPPER_GetScalarArrayElements(T_BYTE,    jbyte,    Byte)

  1620 WRAPPER_GetScalarArrayElements(T_SHORT,   jshort,   Short)

  1621 WRAPPER_GetScalarArrayElements(T_CHAR,    jchar,    Char)

  1622 WRAPPER_GetScalarArrayElements(T_INT,     jint,     Int)

  1623 WRAPPER_GetScalarArrayElements(T_LONG,    jlong,    Long)

  1624 WRAPPER_GetScalarArrayElements(T_FLOAT,   jfloat,   Float)

  1625 WRAPPER_GetScalarArrayElements(T_DOUBLE,  jdouble,  Double)

  1627 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \

  1628 JNI_ENTRY_CHECKED(void,  \

  1629   checked_jni_Release##Result##ArrayElements(JNIEnv *env, \

  1630                                              ElementType##Array array, \

  1631                                              ElementType *elems, \

  1632                                              jint mode)) \

  1633     functionEnterExceptionAllowed(thr); \

  1634     IN_VM( \

  1635       check_primitive_array_type(thr, array, ElementTag); \

  1636       ASSERT_OOPS_ALLOWED; \

  1637       typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  1638     ) \

  1639     ElementType* orig_result = (ElementType *) check_wrapped_array_release( \

  1640         thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \

  1641     UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \

  1642     functionExit(env); \

  1643 JNI_END

  1645 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)

  1646 WRAPPER_ReleaseScalarArrayElements(T_BYTE,   jbyte,    Byte,    byte)

  1647 WRAPPER_ReleaseScalarArrayElements(T_SHORT,  jshort,   Short,   short)

  1648 WRAPPER_ReleaseScalarArrayElements(T_CHAR,   jchar,    Char,    char)

  1649 WRAPPER_ReleaseScalarArrayElements(T_INT,    jint,     Int,     int)

  1650 WRAPPER_ReleaseScalarArrayElements(T_LONG,   jlong,    Long,    long)

  1651 WRAPPER_ReleaseScalarArrayElements(T_FLOAT,  jfloat,   Float,   float)

  1652 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble,  Double,  double)

  1654 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \

  1655 JNI_ENTRY_CHECKED(void,  \

  1656   checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \

  1657                                        ElementType##Array array, \

  1658                                        jsize start, \

  1659                                        jsize len, \

  1660                                        ElementType *buf)) \

  1661     functionEnter(thr); \

  1662     IN_VM( \

  1663       check_primitive_array_type(thr, array, ElementTag); \

  1664     ) \

  1665     UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \

  1666     functionExit(env); \

  1667 JNI_END

  1669 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)

  1670 WRAPPER_GetScalarArrayRegion(T_BYTE,    jbyte,    Byte)

  1671 WRAPPER_GetScalarArrayRegion(T_SHORT,   jshort,   Short)

  1672 WRAPPER_GetScalarArrayRegion(T_CHAR,    jchar,    Char)

  1673 WRAPPER_GetScalarArrayRegion(T_INT,     jint,     Int)

  1674 WRAPPER_GetScalarArrayRegion(T_LONG,    jlong,    Long)

  1675 WRAPPER_GetScalarArrayRegion(T_FLOAT,   jfloat,   Float)

  1676 WRAPPER_GetScalarArrayRegion(T_DOUBLE,  jdouble,  Double)

  1678 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \

  1679 JNI_ENTRY_CHECKED(void,  \

  1680   checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \

  1681                                        ElementType##Array array, \

  1682                                        jsize start, \

  1683                                        jsize len, \

  1684                                        const ElementType *buf)) \

  1685     functionEnter(thr); \

  1686     IN_VM( \

  1687       check_primitive_array_type(thr, array, ElementTag); \

  1688     ) \

  1689     UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \

  1690     functionExit(env); \

  1691 JNI_END

  1693 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)

  1694 WRAPPER_SetScalarArrayRegion(T_BYTE,    jbyte,    Byte)

  1695 WRAPPER_SetScalarArrayRegion(T_SHORT,   jshort,   Short)

  1696 WRAPPER_SetScalarArrayRegion(T_CHAR,    jchar,    Char)

  1697 WRAPPER_SetScalarArrayRegion(T_INT,     jint,     Int)

  1698 WRAPPER_SetScalarArrayRegion(T_LONG,    jlong,    Long)

  1699 WRAPPER_SetScalarArrayRegion(T_FLOAT,   jfloat,   Float)

  1700 WRAPPER_SetScalarArrayRegion(T_DOUBLE,  jdouble,  Double)

  1702 JNI_ENTRY_CHECKED(jint,

  1703   checked_jni_RegisterNatives(JNIEnv *env,

  1704                               jclass clazz,

  1705                               const JNINativeMethod *methods,

  1706                               jint nMethods))

  1707     functionEnter(thr);

  1708     jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);

  1709     functionExit(env);

  1710     return result;

  1711 JNI_END

  1713 JNI_ENTRY_CHECKED(jint,

  1714   checked_jni_UnregisterNatives(JNIEnv *env,

  1715                                 jclass clazz))

  1716     functionEnter(thr);

  1717     jint result = UNCHECKED()->UnregisterNatives(env,clazz);

  1718     functionExit(env);

  1719     return result;

  1720 JNI_END

  1722 JNI_ENTRY_CHECKED(jint,

  1723   checked_jni_MonitorEnter(JNIEnv *env,

  1724                            jobject obj))

  1725     functionEnter(thr);

  1726     IN_VM(

  1727       jniCheck::validate_object(thr, obj);

  1728     )

  1729     jint result = UNCHECKED()->MonitorEnter(env,obj);

  1730     functionExit(env);

  1731     return result;

  1732 JNI_END

  1734 JNI_ENTRY_CHECKED(jint,

  1735   checked_jni_MonitorExit(JNIEnv *env,

  1736                           jobject obj))

  1737     functionEnterExceptionAllowed(thr);

  1738     IN_VM(

  1739       jniCheck::validate_object(thr, obj);

  1740     )

  1741     jint result = UNCHECKED()->MonitorExit(env,obj);

  1742     functionExit(env);

  1743     return result;

  1744 JNI_END

  1746 JNI_ENTRY_CHECKED(jint,

  1747   checked_jni_GetJavaVM(JNIEnv *env,

  1748                         JavaVM **vm))

  1749     functionEnter(thr);

  1750     jint result = UNCHECKED()->GetJavaVM(env,vm);

  1751     functionExit(env);

  1752     return result;

  1753 JNI_END

  1755 JNI_ENTRY_CHECKED(void,

  1756   checked_jni_GetStringRegion(JNIEnv *env,

  1757                               jstring str,

  1758                               jsize start,

  1759                               jsize len,

  1760                               jchar *buf))

  1761     functionEnter(thr);

  1762     IN_VM(

  1763       checkString(thr, str);

  1764     )

  1765     UNCHECKED()->GetStringRegion(env, str, start, len, buf);

  1766     functionExit(env);

  1767 JNI_END

  1769 JNI_ENTRY_CHECKED(void,

  1770   checked_jni_GetStringUTFRegion(JNIEnv *env,

  1771                                  jstring str,

  1772                                  jsize start,

  1773                                  jsize len,

  1774                                  char *buf))

  1775     functionEnter(thr);

  1776     IN_VM(

  1777       checkString(thr, str);

  1778     )

  1779     UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);

  1780     functionExit(env);

  1781 JNI_END

  1783 JNI_ENTRY_CHECKED(void *,

  1784   checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,

  1785                                         jarray array,

  1786                                         jboolean *isCopy))

  1787     functionEnterCritical(thr);

  1788     IN_VM(

  1789       check_is_primitive_array(thr, array);

  1790     )

  1791     void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);

  1792     if (result != NULL) {

  1793       result = check_jni_wrap_copy_array(thr, array, result);

  1794     }

  1795     functionExit(env);

  1796     return result;

  1797 JNI_END

  1799 JNI_ENTRY_CHECKED(void,

  1800   checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,

  1801                                             jarray array,

  1802                                             void *carray,

  1803                                             jint mode))

  1804     functionEnterCriticalExceptionAllowed(thr);

  1805     IN_VM(

  1806       check_is_primitive_array(thr, array);

  1807     )

  1808     // Check the element array...

  1809     void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode);

  1810     UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);

  1811     functionExit(env);

  1812 JNI_END

  1814 JNI_ENTRY_CHECKED(const jchar*,

  1815   checked_jni_GetStringCritical(JNIEnv *env,

  1816                                 jstring string,

  1817                                 jboolean *isCopy))

  1818     functionEnterCritical(thr);

  1819     IN_VM(

  1820       checkString(thr, string);

  1821     )

  1822     const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);

  1823     functionExit(env);

  1824     return result;

  1825 JNI_END

  1827 JNI_ENTRY_CHECKED(void,

  1828   checked_jni_ReleaseStringCritical(JNIEnv *env,

  1829                                     jstring str,

  1830                                     const jchar *chars))

  1831     functionEnterCriticalExceptionAllowed(thr);

  1832     IN_VM(

  1833       checkString(thr, str);

  1834     )

  1835     /* The Hotspot JNI code does not use the parameters, so just check the

  1836      * string parameter as a minor sanity check

  1837      */

  1838     UNCHECKED()->ReleaseStringCritical(env, str, chars);

  1839     functionExit(env);

  1840 JNI_END

  1842 JNI_ENTRY_CHECKED(jweak,

  1843   checked_jni_NewWeakGlobalRef(JNIEnv *env,

  1844                                jobject obj))

  1845     functionEnter(thr);

  1846     IN_VM(

  1847       if (obj != NULL) {

  1848         jniCheck::validate_handle(thr, obj);

  1849       }

  1850     )

  1851     jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);

  1852     functionExit(env);

  1853     return result;

  1854 JNI_END

  1856 JNI_ENTRY_CHECKED(void,

  1857   checked_jni_DeleteWeakGlobalRef(JNIEnv *env,

  1858                                   jweak ref))

  1859     functionEnterExceptionAllowed(thr);

  1860     UNCHECKED()->DeleteWeakGlobalRef(env, ref);

  1861     functionExit(env);

  1862 JNI_END

  1864 JNI_ENTRY_CHECKED(jboolean,

  1865   checked_jni_ExceptionCheck(JNIEnv *env))

  1866     functionEnterExceptionAllowed(thr);

  1867     jboolean result = UNCHECKED()->ExceptionCheck(env);

  1868     functionExit(env);

  1869     return result;

  1870 JNI_END

  1872 JNI_ENTRY_CHECKED(jobject,

  1873   checked_jni_NewDirectByteBuffer(JNIEnv *env,

  1874                                   void *address,

  1875                                   jlong capacity))

  1876     functionEnter(thr);

  1877     jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);

  1878     functionExit(env);

  1879     return result;

  1880 JNI_END

  1882 JNI_ENTRY_CHECKED(void *,

  1883   checked_jni_GetDirectBufferAddress(JNIEnv *env,

  1884                                      jobject buf))

  1885     functionEnter(thr);

  1886     void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);

  1887     functionExit(env);

  1888     return result;

  1889 JNI_END

  1891 JNI_ENTRY_CHECKED(jlong,

  1892   checked_jni_GetDirectBufferCapacity(JNIEnv *env,

  1893                                       jobject buf))

  1894     functionEnter(thr);

  1895     jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);

  1896     functionExit(env);

  1897     return result;

  1898 JNI_END

  1900 JNI_ENTRY_CHECKED(jobjectRefType,

  1901   checked_jni_GetObjectRefType(JNIEnv *env,

  1902                                jobject obj))

  1903     functionEnter(thr);

  1904     /* validate the object being passed */

  1905     IN_VM(

  1906       jniCheck::validate_object(thr, obj);

  1907     )

  1908     jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);

  1909     functionExit(env);

  1910     return result;

  1911 JNI_END

  1914 JNI_ENTRY_CHECKED(jint,

  1915   checked_jni_GetVersion(JNIEnv *env))

  1916     functionEnter(thr);

  1917     jint result = UNCHECKED()->GetVersion(env);

  1918     functionExit(env);

  1919     return result;

  1920 JNI_END

  1924 /*

  1925  * Structure containing all checked jni functions

  1926  */

  1927 struct JNINativeInterface_  checked_jni_NativeInterface = {

  1928     NULL,

  1929     NULL,

  1930     NULL,

  1932     NULL,

  1934     checked_jni_GetVersion,

  1936     checked_jni_DefineClass,

  1937     checked_jni_FindClass,

  1939     checked_jni_FromReflectedMethod,

  1940     checked_jni_FromReflectedField,

  1942     checked_jni_ToReflectedMethod,

  1944     checked_jni_GetSuperclass,

  1945     checked_jni_IsAssignableFrom,

  1947     checked_jni_ToReflectedField,

  1949     checked_jni_Throw,

  1950     checked_jni_ThrowNew,

  1951     checked_jni_ExceptionOccurred,

  1952     checked_jni_ExceptionDescribe,

  1953     checked_jni_ExceptionClear,

  1954     checked_jni_FatalError,

  1956     checked_jni_PushLocalFrame,

  1957     checked_jni_PopLocalFrame,

  1959     checked_jni_NewGlobalRef,

  1960     checked_jni_DeleteGlobalRef,

  1961     checked_jni_DeleteLocalRef,

  1962     checked_jni_IsSameObject,

  1964     checked_jni_NewLocalRef,

  1965     checked_jni_EnsureLocalCapacity,

  1967     checked_jni_AllocObject,

  1968     checked_jni_NewObject,

  1969     checked_jni_NewObjectV,

  1970     checked_jni_NewObjectA,

  1972     checked_jni_GetObjectClass,

  1973     checked_jni_IsInstanceOf,

  1975     checked_jni_GetMethodID,

  1977     checked_jni_CallObjectMethod,

  1978     checked_jni_CallObjectMethodV,

  1979     checked_jni_CallObjectMethodA,

  1980     checked_jni_CallBooleanMethod,

  1981     checked_jni_CallBooleanMethodV,

  1982     checked_jni_CallBooleanMethodA,

  1983     checked_jni_CallByteMethod,

  1984     checked_jni_CallByteMethodV,

  1985     checked_jni_CallByteMethodA,

  1986     checked_jni_CallCharMethod,

  1987     checked_jni_CallCharMethodV,

  1988     checked_jni_CallCharMethodA,

  1989     checked_jni_CallShortMethod,

  1990     checked_jni_CallShortMethodV,

  1991     checked_jni_CallShortMethodA,

  1992     checked_jni_CallIntMethod,

  1993     checked_jni_CallIntMethodV,

  1994     checked_jni_CallIntMethodA,

  1995     checked_jni_CallLongMethod,

  1996     checked_jni_CallLongMethodV,

  1997     checked_jni_CallLongMethodA,

  1998     checked_jni_CallFloatMethod,

  1999     checked_jni_CallFloatMethodV,

  2000     checked_jni_CallFloatMethodA,

  2001     checked_jni_CallDoubleMethod,

  2002     checked_jni_CallDoubleMethodV,

  2003     checked_jni_CallDoubleMethodA,

  2004     checked_jni_CallVoidMethod,

  2005     checked_jni_CallVoidMethodV,

  2006     checked_jni_CallVoidMethodA,

  2008     checked_jni_CallNonvirtualObjectMethod,

  2009     checked_jni_CallNonvirtualObjectMethodV,

  2010     checked_jni_CallNonvirtualObjectMethodA,

  2011     checked_jni_CallNonvirtualBooleanMethod,

  2012     checked_jni_CallNonvirtualBooleanMethodV,

  2013     checked_jni_CallNonvirtualBooleanMethodA,

  2014     checked_jni_CallNonvirtualByteMethod,

  2015     checked_jni_CallNonvirtualByteMethodV,

  2016     checked_jni_CallNonvirtualByteMethodA,

  2017     checked_jni_CallNonvirtualCharMethod,

  2018     checked_jni_CallNonvirtualCharMethodV,

  2019     checked_jni_CallNonvirtualCharMethodA,

  2020     checked_jni_CallNonvirtualShortMethod,

  2021     checked_jni_CallNonvirtualShortMethodV,

  2022     checked_jni_CallNonvirtualShortMethodA,

  2023     checked_jni_CallNonvirtualIntMethod,

  2024     checked_jni_CallNonvirtualIntMethodV,

  2025     checked_jni_CallNonvirtualIntMethodA,

  2026     checked_jni_CallNonvirtualLongMethod,

  2027     checked_jni_CallNonvirtualLongMethodV,

  2028     checked_jni_CallNonvirtualLongMethodA,

  2029     checked_jni_CallNonvirtualFloatMethod,

  2030     checked_jni_CallNonvirtualFloatMethodV,

  2031     checked_jni_CallNonvirtualFloatMethodA,

  2032     checked_jni_CallNonvirtualDoubleMethod,

  2033     checked_jni_CallNonvirtualDoubleMethodV,

  2034     checked_jni_CallNonvirtualDoubleMethodA,

  2035     checked_jni_CallNonvirtualVoidMethod,

  2036     checked_jni_CallNonvirtualVoidMethodV,

  2037     checked_jni_CallNonvirtualVoidMethodA,

  2039     checked_jni_GetFieldID,

  2041     checked_jni_GetObjectField,

  2042     checked_jni_GetBooleanField,

  2043     checked_jni_GetByteField,

  2044     checked_jni_GetCharField,

  2045     checked_jni_GetShortField,

  2046     checked_jni_GetIntField,

  2047     checked_jni_GetLongField,

  2048     checked_jni_GetFloatField,

  2049     checked_jni_GetDoubleField,

  2051     checked_jni_SetObjectField,

  2052     checked_jni_SetBooleanField,

  2053     checked_jni_SetByteField,

  2054     checked_jni_SetCharField,

  2055     checked_jni_SetShortField,

  2056     checked_jni_SetIntField,

  2057     checked_jni_SetLongField,

  2058     checked_jni_SetFloatField,

  2059     checked_jni_SetDoubleField,

  2061     checked_jni_GetStaticMethodID,

  2063     checked_jni_CallStaticObjectMethod,

  2064     checked_jni_CallStaticObjectMethodV,

  2065     checked_jni_CallStaticObjectMethodA,

  2066     checked_jni_CallStaticBooleanMethod,

  2067     checked_jni_CallStaticBooleanMethodV,

  2068     checked_jni_CallStaticBooleanMethodA,

  2069     checked_jni_CallStaticByteMethod,

  2070     checked_jni_CallStaticByteMethodV,

  2071     checked_jni_CallStaticByteMethodA,

  2072     checked_jni_CallStaticCharMethod,

  2073     checked_jni_CallStaticCharMethodV,

  2074     checked_jni_CallStaticCharMethodA,

  2075     checked_jni_CallStaticShortMethod,

  2076     checked_jni_CallStaticShortMethodV,

  2077     checked_jni_CallStaticShortMethodA,

  2078     checked_jni_CallStaticIntMethod,

  2079     checked_jni_CallStaticIntMethodV,

  2080     checked_jni_CallStaticIntMethodA,

  2081     checked_jni_CallStaticLongMethod,

  2082     checked_jni_CallStaticLongMethodV,

  2083     checked_jni_CallStaticLongMethodA,

  2084     checked_jni_CallStaticFloatMethod,

  2085     checked_jni_CallStaticFloatMethodV,

  2086     checked_jni_CallStaticFloatMethodA,

  2087     checked_jni_CallStaticDoubleMethod,

  2088     checked_jni_CallStaticDoubleMethodV,

  2089     checked_jni_CallStaticDoubleMethodA,

  2090     checked_jni_CallStaticVoidMethod,

  2091     checked_jni_CallStaticVoidMethodV,

  2092     checked_jni_CallStaticVoidMethodA,

  2094     checked_jni_GetStaticFieldID,

  2096     checked_jni_GetStaticObjectField,

  2097     checked_jni_GetStaticBooleanField,

  2098     checked_jni_GetStaticByteField,

  2099     checked_jni_GetStaticCharField,

  2100     checked_jni_GetStaticShortField,

  2101     checked_jni_GetStaticIntField,

  2102     checked_jni_GetStaticLongField,

  2103     checked_jni_GetStaticFloatField,

  2104     checked_jni_GetStaticDoubleField,

  2106     checked_jni_SetStaticObjectField,

  2107     checked_jni_SetStaticBooleanField,

  2108     checked_jni_SetStaticByteField,

  2109     checked_jni_SetStaticCharField,

  2110     checked_jni_SetStaticShortField,

  2111     checked_jni_SetStaticIntField,

  2112     checked_jni_SetStaticLongField,

  2113     checked_jni_SetStaticFloatField,

  2114     checked_jni_SetStaticDoubleField,

  2116     checked_jni_NewString,

  2117     checked_jni_GetStringLength,

  2118     checked_jni_GetStringChars,

  2119     checked_jni_ReleaseStringChars,

  2121     checked_jni_NewStringUTF,

  2122     checked_jni_GetStringUTFLength,

  2123     checked_jni_GetStringUTFChars,

  2124     checked_jni_ReleaseStringUTFChars,

  2126     checked_jni_GetArrayLength,

  2128     checked_jni_NewObjectArray,

  2129     checked_jni_GetObjectArrayElement,

  2130     checked_jni_SetObjectArrayElement,

  2132     checked_jni_NewBooleanArray,

  2133     checked_jni_NewByteArray,

  2134     checked_jni_NewCharArray,

  2135     checked_jni_NewShortArray,

  2136     checked_jni_NewIntArray,

  2137     checked_jni_NewLongArray,

  2138     checked_jni_NewFloatArray,

  2139     checked_jni_NewDoubleArray,

  2141     checked_jni_GetBooleanArrayElements,

  2142     checked_jni_GetByteArrayElements,

  2143     checked_jni_GetCharArrayElements,

  2144     checked_jni_GetShortArrayElements,

  2145     checked_jni_GetIntArrayElements,

  2146     checked_jni_GetLongArrayElements,

  2147     checked_jni_GetFloatArrayElements,

  2148     checked_jni_GetDoubleArrayElements,

  2150     checked_jni_ReleaseBooleanArrayElements,

  2151     checked_jni_ReleaseByteArrayElements,

  2152     checked_jni_ReleaseCharArrayElements,

  2153     checked_jni_ReleaseShortArrayElements,

  2154     checked_jni_ReleaseIntArrayElements,

  2155     checked_jni_ReleaseLongArrayElements,

  2156     checked_jni_ReleaseFloatArrayElements,

  2157     checked_jni_ReleaseDoubleArrayElements,

  2159     checked_jni_GetBooleanArrayRegion,

  2160     checked_jni_GetByteArrayRegion,

  2161     checked_jni_GetCharArrayRegion,

  2162     checked_jni_GetShortArrayRegion,

  2163     checked_jni_GetIntArrayRegion,

  2164     checked_jni_GetLongArrayRegion,

  2165     checked_jni_GetFloatArrayRegion,

  2166     checked_jni_GetDoubleArrayRegion,

  2168     checked_jni_SetBooleanArrayRegion,

  2169     checked_jni_SetByteArrayRegion,

  2170     checked_jni_SetCharArrayRegion,

  2171     checked_jni_SetShortArrayRegion,

  2172     checked_jni_SetIntArrayRegion,

  2173     checked_jni_SetLongArrayRegion,

  2174     checked_jni_SetFloatArrayRegion,

  2175     checked_jni_SetDoubleArrayRegion,

  2177     checked_jni_RegisterNatives,

  2178     checked_jni_UnregisterNatives,

  2180     checked_jni_MonitorEnter,

  2181     checked_jni_MonitorExit,

  2183     checked_jni_GetJavaVM,

  2185     checked_jni_GetStringRegion,

  2186     checked_jni_GetStringUTFRegion,

  2188     checked_jni_GetPrimitiveArrayCritical,

  2189     checked_jni_ReleasePrimitiveArrayCritical,

  2191     checked_jni_GetStringCritical,

  2192     checked_jni_ReleaseStringCritical,

  2194     checked_jni_NewWeakGlobalRef,

  2195     checked_jni_DeleteWeakGlobalRef,

  2197     checked_jni_ExceptionCheck,

  2199     checked_jni_NewDirectByteBuffer,

  2200     checked_jni_GetDirectBufferAddress,

  2201     checked_jni_GetDirectBufferCapacity,

  2203     // New 1.6 Features

  2205     checked_jni_GetObjectRefType

  2206 };

  2209 // Returns the function structure

  2210 struct JNINativeInterface_* jni_functions_check() {

  2212   unchecked_jni_NativeInterface = jni_functions_nocheck();

  2214   // make sure the last pointer in the checked table is not null, indicating

  2215   // an addition to the JNINativeInterface_ structure without initializing

  2216   // it in the checked table.

  2217   debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \

  2218              sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)

  2219   assert(*lastPtr != 0,

  2220          "Mismatched JNINativeInterface tables, check for new entries");

  2222   // with -verbose:jni this message will print

  2223   if (PrintJNIResolving) {

  2224     tty->print_cr("Checked JNI functions are being used to " \

  2225                   "validate JNI usage");

  2226   }

  2228   return &checked_jni_NativeInterface;

  2229 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jniCheck.cpp@833b0f92429a

src/share/vm/prims/jniCheck.cpp