Mercurial > hg > graal-compiler
view src/share/vm/prims/jniCheck.cpp @ 4836:d30fa85f9994
6484965: G1: piggy-back liveness accounting phase on marking
Summary: Remove the separate counting phase of concurrent marking by tracking the amount of marked bytes and the cards spanned by marked objects in marking task/worker thread local data structures, which are updated as individual objects are marked.
Reviewed-by: brutisso, tonyp
author | johnc |
---|---|
date | Thu, 12 Jan 2012 00:06:47 -0800 |
parents | a6eef545f1a2 |
children | d2a62e0f25eb |
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/* * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "classfile/systemDictionary.hpp" #include "classfile/vmSymbols.hpp" #include "oops/instanceKlass.hpp" #include "oops/oop.inline.hpp" #include "oops/symbol.hpp" #include "prims/jni.h" #include "prims/jniCheck.hpp" #include "prims/jvm_misc.hpp" #include "runtime/fieldDescriptor.hpp" #include "runtime/handles.hpp" #include "runtime/interfaceSupport.hpp" #include "runtime/jfieldIDWorkaround.hpp" #include "runtime/thread.hpp" #ifdef TARGET_ARCH_x86 # include "jniTypes_x86.hpp" #endif #ifdef TARGET_ARCH_sparc # include "jniTypes_sparc.hpp" #endif #ifdef TARGET_ARCH_zero # include "jniTypes_zero.hpp" #endif #ifdef TARGET_ARCH_arm # include "jniTypes_arm.hpp" #endif #ifdef TARGET_ARCH_ppc # include "jniTypes_ppc.hpp" #endif // Heap objects are allowed to be directly referenced only in VM code, // not in native code. #define ASSERT_OOPS_ALLOWED \ assert(JavaThread::current()->thread_state() == _thread_in_vm, \ "jniCheck examining oops in bad state.") // Execute the given block of source code with the thread in VM state. // To do this, transition from the NATIVE state to the VM state, execute // the code, and transtition back. The ThreadInVMfromNative constructor // performs the transition to VM state, its destructor restores the // NATIVE state. #define IN_VM(source_code) { \ { \ ThreadInVMfromNative __tiv(thr); \ source_code \ } \ } /* * DECLARATIONS */ static struct JNINativeInterface_ * unchecked_jni_NativeInterface; /* * MACRO DEFINITIONS */ // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles // to be created if a fatal error should occur. // Check for thread not attached to VM; need to catch this before // assertions in the wrapper routines might fire // Check for env being the one value appropriate for this thread. #define JNI_ENTRY_CHECKED(result_type, header) \ extern "C" { \ result_type JNICALL header { \ JavaThread* thr = (JavaThread*)ThreadLocalStorage::get_thread_slow();\ if (thr == NULL || !thr->is_Java_thread()) { \ tty->print_cr(fatal_using_jnienv_in_nonjava); \ os::abort(true); \ } \ JNIEnv* xenv = thr->jni_environment(); \ if (env != xenv) { \ NativeReportJNIFatalError(thr, warn_wrong_jnienv); \ } \ VM_ENTRY_BASE(result_type, header, thr) #define UNCHECKED() (unchecked_jni_NativeInterface) static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread"; static const char * warn_bad_class_descriptor = "JNI FindClass received a bad class descriptor \"%s\". A correct class descriptor " \ "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases."; static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread"; static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \ "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical"; static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI"; static const char * fatal_received_null_class = "JNI received a null class"; static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class"; 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"; static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call"; static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call"; static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations"; static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation"; static const char * fatal_non_array = "Non-array passed to JNI array operations"; static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI"; static const char * fatal_should_be_static = "Non-static field ID passed to JNI"; static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI"; static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations"; static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations"; static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI"; static const char * fatal_null_object = "Null object passed to JNI"; static const char * fatal_wrong_field = "Wrong field ID passed to JNI"; static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations"; static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations"; static const char * fatal_non_string = "JNI string operation received a non-string"; // When in VM state: static void ReportJNIWarning(JavaThread* thr, const char *msg) { tty->print_cr("WARNING in native method: %s", msg); thr->print_stack(); } // When in NATIVE state: static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) { IN_VM( ReportJNIFatalError(thr, msg); ) } static void NativeReportJNIWarning(JavaThread* thr, const char *msg) { IN_VM( ReportJNIWarning(thr, msg); ) } /* * SUPPORT FUNCTIONS */ static inline void functionEnterCritical(JavaThread* thr) { if (thr->has_pending_exception()) { NativeReportJNIWarning(thr, "JNI call made with exception pending"); } } static inline void functionEnterCriticalExceptionAllowed(JavaThread* thr) { } static inline void functionEnter(JavaThread* thr) { if (thr->in_critical()) { tty->print_cr(warn_other_function_in_critical); } if (thr->has_pending_exception()) { NativeReportJNIWarning(thr, "JNI call made with exception pending"); } } static inline void functionEnterExceptionAllowed(JavaThread* thr) { if (thr->in_critical()) { tty->print_cr(warn_other_function_in_critical); } } static inline void functionExit(JNIEnv *env) { /* nothing to do at this time */ } static inline void checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype) { fieldDescriptor fd; /* make sure it is a static field */ if (!jfieldIDWorkaround::is_static_jfieldID(fid)) ReportJNIFatalError(thr, fatal_should_be_static); /* validate the class being passed */ ASSERT_OOPS_ALLOWED; klassOop k_oop = jniCheck::validate_class(thr, cls, false); /* check for proper subclass hierarchy */ JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid); klassOop f_oop = id->holder(); if (!instanceKlass::cast(k_oop)->is_subtype_of(f_oop)) ReportJNIFatalError(thr, fatal_wrong_static_field); /* check for proper field type */ if (!id->find_local_field(&fd)) ReportJNIFatalError(thr, fatal_static_field_not_found); if ((fd.field_type() != ftype) && !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) { ReportJNIFatalError(thr, fatal_static_field_mismatch); } } static inline void checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype) { fieldDescriptor fd; /* make sure it is an instance field */ if (jfieldIDWorkaround::is_static_jfieldID(fid)) ReportJNIFatalError(thr, fatal_should_be_nonstatic); /* validate the object being passed and then get its class */ ASSERT_OOPS_ALLOWED; oop oopObj = jniCheck::validate_object(thr, obj); if (!oopObj) { ReportJNIFatalError(thr, fatal_null_object); } klassOop k_oop = oopObj->klass(); if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) { ReportJNIFatalError(thr, fatal_wrong_field); } /* make sure the field exists */ int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid); if (!instanceKlass::cast(k_oop)->contains_field_offset(offset)) ReportJNIFatalError(thr, fatal_wrong_field); /* check for proper field type */ if (!instanceKlass::cast(k_oop)->find_field_from_offset(offset, false, &fd)) ReportJNIFatalError(thr, fatal_instance_field_not_found); if ((fd.field_type() != ftype) && !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) { ReportJNIFatalError(thr, fatal_instance_field_mismatch); } } static inline void checkString(JavaThread* thr, jstring js) { ASSERT_OOPS_ALLOWED; oop s = jniCheck::validate_object(thr, js); if (!s || !java_lang_String::is_instance(s)) ReportJNIFatalError(thr, fatal_non_string); } static inline void checkArray(JavaThread* thr, jarray jArray, int elementType) { ASSERT_OOPS_ALLOWED; arrayOop aOop; aOop = (arrayOop)jniCheck::validate_object(thr, jArray); if (aOop == NULL || !aOop->is_array()) ReportJNIFatalError(thr, fatal_non_array); if (elementType != -1) { if (aOop->is_typeArray()) { BasicType array_type = typeArrayKlass::cast(aOop->klass())->element_type(); if (array_type != elementType) ReportJNIFatalError(thr, fatal_element_type_mismatch); } else if (aOop->is_objArray()) { if ( T_OBJECT != elementType) ReportJNIFatalError(thr, fatal_object_array_expected); } else { ReportJNIFatalError(thr, fatal_unknown_array_object); } } } oop jniCheck::validate_handle(JavaThread* thr, jobject obj) { if (JNIHandles::is_frame_handle(thr, obj) || JNIHandles::is_local_handle(thr, obj) || JNIHandles::is_global_handle(obj) || JNIHandles::is_weak_global_handle(obj)) { ASSERT_OOPS_ALLOWED; return JNIHandles::resolve_external_guard(obj); } ReportJNIFatalError(thr, fatal_bad_ref_to_jni); return NULL; } methodOop jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) { ASSERT_OOPS_ALLOWED; // do the fast jmethodID check first methodOop moop = JNIHandles::checked_resolve_jmethod_id(method_id); if (moop == NULL) { ReportJNIFatalError(thr, fatal_wrong_class_or_method); } // jmethodIDs are supposed to be weak global handles, but that // can be expensive so check it last else if (!JNIHandles::is_weak_global_handle((jobject) method_id)) { ReportJNIFatalError(thr, fatal_non_weak_method); } return moop; } oop jniCheck::validate_object(JavaThread* thr, jobject obj) { if (!obj) return NULL; ASSERT_OOPS_ALLOWED; oop oopObj = jniCheck::validate_handle(thr, obj); if (!oopObj) { ReportJNIFatalError(thr, fatal_bad_ref_to_jni); } return oopObj; } // Warn if a class descriptor is in decorated form; class descriptors // passed to JNI findClass should not be decorated unless they are // array descriptors. void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) { if (name == NULL) return; // implementation accepts NULL so just return size_t len = strlen(name); if (len >= 2 && name[0] == JVM_SIGNATURE_CLASS && // 'L' name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';' char msg[JVM_MAXPATHLEN]; jio_snprintf(msg, JVM_MAXPATHLEN, warn_bad_class_descriptor, name); ReportJNIWarning(thr, msg); } } klassOop jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) { ASSERT_OOPS_ALLOWED; oop mirror = jniCheck::validate_handle(thr, clazz); if (!mirror) { ReportJNIFatalError(thr, fatal_received_null_class); } if (mirror->klass() != SystemDictionary::Class_klass()) { ReportJNIFatalError(thr, fatal_class_not_a_class); } klassOop k = java_lang_Class::as_klassOop(mirror); // Make allowances for primitive classes ... if (!(k != NULL || allow_primitive && java_lang_Class::is_primitive(mirror))) { ReportJNIFatalError(thr, fatal_class_not_a_class); } return k; } void jniCheck::validate_throwable_klass(JavaThread* thr, klassOop klass) { ASSERT_OOPS_ALLOWED; assert(klass != NULL, "klass argument must have a value"); if (!Klass::cast(klass)->oop_is_instance() || !instanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) { ReportJNIFatalError(thr, fatal_class_not_a_throwable_class); } } void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) { /* validate the object being passed */ ASSERT_OOPS_ALLOWED; jniCheck::validate_jmethod_id(thr, method_id); jniCheck::validate_object(thr, obj); } void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) { /* validate the class being passed */ ASSERT_OOPS_ALLOWED; jniCheck::validate_jmethod_id(thr, method_id); jniCheck::validate_class(thr, clazz, false); } /* * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE */ JNI_ENTRY_CHECKED(jclass, checked_jni_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, jsize len)) functionEnter(thr); IN_VM( jniCheck::validate_object(thr, loader); ) jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jclass, checked_jni_FindClass(JNIEnv *env, const char *name)) functionEnter(thr); IN_VM( jniCheck::validate_class_descriptor(thr, name); ) jclass result = UNCHECKED()->FindClass(env, name); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jmethodID, checked_jni_FromReflectedMethod(JNIEnv *env, jobject method)) functionEnter(thr); IN_VM( jniCheck::validate_object(thr, method); ) jmethodID result = UNCHECKED()->FromReflectedMethod(env, method); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jfieldID, checked_jni_FromReflectedField(JNIEnv *env, jobject field)) functionEnter(thr); IN_VM( jniCheck::validate_object(thr, field); ) jfieldID result = UNCHECKED()->FromReflectedField(env, field); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID methodID, jboolean isStatic)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, cls, false); jniCheck::validate_jmethod_id(thr, methodID); ) jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID, isStatic); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jclass, checked_jni_GetSuperclass(JNIEnv *env, jclass sub)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, sub, true); ) jclass result = UNCHECKED()->GetSuperclass(env, sub); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jboolean, checked_jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass sup)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, sub, true); jniCheck::validate_class(thr, sup, true); ) jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, cls, false); ) jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID, isStatic); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_Throw(JNIEnv *env, jthrowable obj)) functionEnter(thr); IN_VM( oop oopObj = jniCheck::validate_object(thr, obj); if (oopObj == NULL) { // Unchecked Throw tolerates a NULL obj, so just warn ReportJNIWarning(thr, "JNI Throw called with NULL throwable"); } else { jniCheck::validate_throwable_klass(thr, oopObj->klass()); } ) jint result = UNCHECKED()->Throw(env, obj); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_ThrowNew(JNIEnv *env, jclass clazz, const char *msg)) functionEnter(thr); IN_VM( klassOop k = jniCheck::validate_class(thr, clazz, false); assert(k != NULL, "validate_class shouldn't return NULL klassOop"); jniCheck::validate_throwable_klass(thr, k); ) jint result = UNCHECKED()->ThrowNew(env, clazz, msg); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jthrowable, checked_jni_ExceptionOccurred(JNIEnv *env)) functionEnterExceptionAllowed(thr); jthrowable result = UNCHECKED()->ExceptionOccurred(env); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_ExceptionDescribe(JNIEnv *env)) functionEnterExceptionAllowed(thr); UNCHECKED()->ExceptionDescribe(env); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_ExceptionClear(JNIEnv *env)) functionEnterExceptionAllowed(thr); UNCHECKED()->ExceptionClear(env); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_FatalError(JNIEnv *env, const char *msg)) functionEnter(thr); UNCHECKED()->FatalError(env, msg); functionExit(env); JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_PushLocalFrame(JNIEnv *env, jint capacity)) functionEnterExceptionAllowed(thr); if (capacity < 0) NativeReportJNIFatalError(thr, "negative capacity"); jint result = UNCHECKED()->PushLocalFrame(env, capacity); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_PopLocalFrame(JNIEnv *env, jobject result)) functionEnterExceptionAllowed(thr); jobject res = UNCHECKED()->PopLocalFrame(env, result); functionExit(env); return res; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_NewGlobalRef(JNIEnv *env, jobject lobj)) functionEnter(thr); IN_VM( if (lobj != NULL) { jniCheck::validate_handle(thr, lobj); } ) jobject result = UNCHECKED()->NewGlobalRef(env,lobj); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_DeleteGlobalRef(JNIEnv *env, jobject gref)) functionEnterExceptionAllowed(thr); IN_VM( jniCheck::validate_object(thr, gref); if (gref && !JNIHandles::is_global_handle(gref)) { ReportJNIFatalError(thr, "Invalid global JNI handle passed to DeleteGlobalRef"); } ) UNCHECKED()->DeleteGlobalRef(env,gref); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_DeleteLocalRef(JNIEnv *env, jobject obj)) functionEnterExceptionAllowed(thr); IN_VM( jniCheck::validate_object(thr, obj); if (obj && !(JNIHandles::is_local_handle(thr, obj) || JNIHandles::is_frame_handle(thr, obj))) ReportJNIFatalError(thr, "Invalid local JNI handle passed to DeleteLocalRef"); ) UNCHECKED()->DeleteLocalRef(env, obj); functionExit(env); JNI_END JNI_ENTRY_CHECKED(jboolean, checked_jni_IsSameObject(JNIEnv *env, jobject obj1, jobject obj2)) functionEnterExceptionAllowed(thr); IN_VM( /* This JNI function can be used to compare weak global references * to NULL objects. If the handles are valid, but contain NULL, * then don't attempt to validate the object. */ if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) { jniCheck::validate_object(thr, obj1); } if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) { jniCheck::validate_object(thr, obj2); } ) jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_NewLocalRef(JNIEnv *env, jobject ref)) functionEnter(thr); IN_VM( if (ref != NULL) { jniCheck::validate_handle(thr, ref); } ) jobject result = UNCHECKED()->NewLocalRef(env, ref); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_EnsureLocalCapacity(JNIEnv *env, jint capacity)) functionEnter(thr); if (capacity < 0) { NativeReportJNIFatalError(thr, "negative capacity"); } jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_AllocObject(JNIEnv *env, jclass clazz)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, clazz, false); ) jobject result = UNCHECKED()->AllocObject(env,clazz); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...)) functionEnter(thr); va_list args; IN_VM( jniCheck::validate_class(thr, clazz, false); jniCheck::validate_jmethod_id(thr, methodID); ) va_start(args, methodID); jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args); va_end(args); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, clazz, false); jniCheck::validate_jmethod_id(thr, methodID); ) jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, clazz, false); jniCheck::validate_jmethod_id(thr, methodID); ) jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jclass, checked_jni_GetObjectClass(JNIEnv *env, jobject obj)) functionEnter(thr); IN_VM( jniCheck::validate_object(thr, obj); ) jclass result = UNCHECKED()->GetObjectClass(env,obj); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jboolean, checked_jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz)) functionEnter(thr); IN_VM( jniCheck::validate_object(thr, obj); jniCheck::validate_class(thr, clazz, true); ) jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jmethodID, checked_jni_GetMethodID(JNIEnv *env, jclass clazz, const char *name, const char *sig)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, clazz, false); ) jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig); functionExit(env); return result; JNI_END #define WRAPPER_CallMethod(ResultType, Result) \ JNI_ENTRY_CHECKED(ResultType, \ checked_jni_Call##Result##Method(JNIEnv *env, \ jobject obj, \ jmethodID methodID, \ ...)) \ functionEnter(thr); \ va_list args; \ IN_VM( \ jniCheck::validate_call_object(thr, obj, methodID); \ ) \ va_start(args,methodID); \ ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \ args); \ va_end(args); \ functionExit(env); \ return result; \ JNI_END \ \ JNI_ENTRY_CHECKED(ResultType, \ checked_jni_Call##Result##MethodV(JNIEnv *env, \ jobject obj, \ jmethodID methodID, \ va_list args)) \ functionEnter(thr); \ IN_VM(\ jniCheck::validate_call_object(thr, obj, methodID); \ ) \ ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\ args); \ functionExit(env); \ return result; \ JNI_END \ \ JNI_ENTRY_CHECKED(ResultType, \ checked_jni_Call##Result##MethodA(JNIEnv *env, \ jobject obj, \ jmethodID methodID, \ const jvalue * args)) \ functionEnter(thr); \ IN_VM( \ jniCheck::validate_call_object(thr, obj, methodID); \ ) \ ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\ args); \ functionExit(env); \ return result; \ JNI_END WRAPPER_CallMethod(jobject,Object) WRAPPER_CallMethod(jboolean,Boolean) WRAPPER_CallMethod(jbyte,Byte) WRAPPER_CallMethod(jshort,Short) WRAPPER_CallMethod(jchar,Char) WRAPPER_CallMethod(jint,Int) WRAPPER_CallMethod(jlong,Long) WRAPPER_CallMethod(jfloat,Float) WRAPPER_CallMethod(jdouble,Double) JNI_ENTRY_CHECKED(void, checked_jni_CallVoidMethod(JNIEnv *env, \ jobject obj, \ jmethodID methodID, \ ...)) functionEnter(thr); va_list args; IN_VM( jniCheck::validate_call_object(thr, obj, methodID); ) va_start(args,methodID); UNCHECKED()->CallVoidMethodV(env,obj,methodID,args); va_end(args); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) functionEnter(thr); IN_VM( jniCheck::validate_call_object(thr, obj, methodID); ) UNCHECKED()->CallVoidMethodV(env,obj,methodID,args); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue * args)) functionEnter(thr); IN_VM( jniCheck::validate_call_object(thr, obj, methodID); ) UNCHECKED()->CallVoidMethodA(env,obj,methodID,args); functionExit(env); JNI_END #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \ JNI_ENTRY_CHECKED(ResultType, \ checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \ jobject obj, \ jclass clazz, \ jmethodID methodID, \ ...)) \ functionEnter(thr); \ va_list args; \ IN_VM( \ jniCheck::validate_call_object(thr, obj, methodID); \ jniCheck::validate_call_class(thr, clazz, methodID); \ ) \ va_start(args,methodID); \ ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \ obj, \ clazz, \ methodID,\ args); \ va_end(args); \ functionExit(env); \ return result; \ JNI_END \ \ JNI_ENTRY_CHECKED(ResultType, \ checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \ jobject obj, \ jclass clazz, \ jmethodID methodID, \ va_list args)) \ functionEnter(thr); \ IN_VM( \ jniCheck::validate_call_object(thr, obj, methodID); \ jniCheck::validate_call_class(thr, clazz, methodID); \ ) \ ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \ obj, \ clazz, \ methodID,\ args); \ functionExit(env); \ return result; \ JNI_END \ \ JNI_ENTRY_CHECKED(ResultType, \ checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \ jobject obj, \ jclass clazz, \ jmethodID methodID, \ const jvalue * args)) \ functionEnter(thr); \ IN_VM( \ jniCheck::validate_call_object(thr, obj, methodID); \ jniCheck::validate_call_class(thr, clazz, methodID); \ ) \ ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \ obj, \ clazz, \ methodID,\ args); \ functionExit(env); \ return result; \ JNI_END WRAPPER_CallNonvirtualMethod(jobject,Object) WRAPPER_CallNonvirtualMethod(jboolean,Boolean) WRAPPER_CallNonvirtualMethod(jbyte,Byte) WRAPPER_CallNonvirtualMethod(jshort,Short) WRAPPER_CallNonvirtualMethod(jchar,Char) WRAPPER_CallNonvirtualMethod(jint,Int) WRAPPER_CallNonvirtualMethod(jlong,Long) WRAPPER_CallNonvirtualMethod(jfloat,Float) WRAPPER_CallNonvirtualMethod(jdouble,Double) JNI_ENTRY_CHECKED(void, checked_jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass clazz, jmethodID methodID, ...)) functionEnter(thr); va_list args; IN_VM( jniCheck::validate_call_object(thr, obj, methodID); jniCheck::validate_call_class(thr, clazz, methodID); ) va_start(args,methodID); UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args); va_end(args); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass clazz, jmethodID methodID, va_list args)) functionEnter(thr); IN_VM( jniCheck::validate_call_object(thr, obj, methodID); jniCheck::validate_call_class(thr, clazz, methodID); ) UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass clazz, jmethodID methodID, const jvalue * args)) functionEnter(thr); IN_VM( jniCheck::validate_call_object(thr, obj, methodID); jniCheck::validate_call_class(thr, clazz, methodID); ) UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args); functionExit(env); JNI_END JNI_ENTRY_CHECKED(jfieldID, checked_jni_GetFieldID(JNIEnv *env, jclass clazz, const char *name, const char *sig)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, clazz, false); ) jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig); functionExit(env); return result; JNI_END #define WRAPPER_GetField(ReturnType,Result,FieldType) \ JNI_ENTRY_CHECKED(ReturnType, \ checked_jni_Get##Result##Field(JNIEnv *env, \ jobject obj, \ jfieldID fieldID)) \ functionEnter(thr); \ IN_VM( \ checkInstanceFieldID(thr, fieldID, obj, FieldType); \ ) \ ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \ functionExit(env); \ return result; \ JNI_END WRAPPER_GetField(jobject, Object, T_OBJECT) WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN) WRAPPER_GetField(jbyte, Byte, T_BYTE) WRAPPER_GetField(jshort, Short, T_SHORT) WRAPPER_GetField(jchar, Char, T_CHAR) WRAPPER_GetField(jint, Int, T_INT) WRAPPER_GetField(jlong, Long, T_LONG) WRAPPER_GetField(jfloat, Float, T_FLOAT) WRAPPER_GetField(jdouble, Double, T_DOUBLE) #define WRAPPER_SetField(ValueType,Result,FieldType) \ JNI_ENTRY_CHECKED(void, \ checked_jni_Set##Result##Field(JNIEnv *env, \ jobject obj, \ jfieldID fieldID, \ ValueType val)) \ functionEnter(thr); \ IN_VM( \ checkInstanceFieldID(thr, fieldID, obj, FieldType); \ ) \ UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \ functionExit(env); \ JNI_END WRAPPER_SetField(jobject, Object, T_OBJECT) WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN) WRAPPER_SetField(jbyte, Byte, T_BYTE) WRAPPER_SetField(jshort, Short, T_SHORT) WRAPPER_SetField(jchar, Char, T_CHAR) WRAPPER_SetField(jint, Int, T_INT) WRAPPER_SetField(jlong, Long, T_LONG) WRAPPER_SetField(jfloat, Float, T_FLOAT) WRAPPER_SetField(jdouble, Double, T_DOUBLE) JNI_ENTRY_CHECKED(jmethodID, checked_jni_GetStaticMethodID(JNIEnv *env, jclass clazz, const char *name, const char *sig)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, clazz, false); ) jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig); functionExit(env); return result; JNI_END #define WRAPPER_CallStaticMethod(ReturnType,Result) \ JNI_ENTRY_CHECKED(ReturnType, \ checked_jni_CallStatic##Result##Method(JNIEnv *env, \ jclass clazz, \ jmethodID methodID, \ ...)) \ functionEnter(thr); \ va_list args; \ IN_VM( \ jniCheck::validate_jmethod_id(thr, methodID); \ jniCheck::validate_class(thr, clazz, false); \ ) \ va_start(args,methodID); \ ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \ clazz, \ methodID, \ args); \ va_end(args); \ functionExit(env); \ return result; \ JNI_END \ \ JNI_ENTRY_CHECKED(ReturnType, \ checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \ jclass clazz, \ jmethodID methodID,\ va_list args)) \ functionEnter(thr); \ IN_VM( \ jniCheck::validate_jmethod_id(thr, methodID); \ jniCheck::validate_class(thr, clazz, false); \ ) \ ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \ clazz, \ methodID, \ args); \ functionExit(env); \ return result; \ JNI_END \ \ JNI_ENTRY_CHECKED(ReturnType, \ checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \ jclass clazz, \ jmethodID methodID, \ const jvalue *args)) \ functionEnter(thr); \ IN_VM( \ jniCheck::validate_jmethod_id(thr, methodID); \ jniCheck::validate_class(thr, clazz, false); \ ) \ ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \ clazz, \ methodID, \ args); \ functionExit(env); \ return result; \ JNI_END WRAPPER_CallStaticMethod(jobject,Object) WRAPPER_CallStaticMethod(jboolean,Boolean) WRAPPER_CallStaticMethod(jbyte,Byte) WRAPPER_CallStaticMethod(jshort,Short) WRAPPER_CallStaticMethod(jchar,Char) WRAPPER_CallStaticMethod(jint,Int) WRAPPER_CallStaticMethod(jlong,Long) WRAPPER_CallStaticMethod(jfloat,Float) WRAPPER_CallStaticMethod(jdouble,Double) JNI_ENTRY_CHECKED(void, checked_jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...)) functionEnter(thr); va_list args; IN_VM( jniCheck::validate_jmethod_id(thr, methodID); jniCheck::validate_class(thr, cls, false); ) va_start(args,methodID); UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args); va_end(args); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) functionEnter(thr); IN_VM( jniCheck::validate_jmethod_id(thr, methodID); jniCheck::validate_class(thr, cls, false); ) UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue * args)) functionEnter(thr); IN_VM( jniCheck::validate_jmethod_id(thr, methodID); jniCheck::validate_class(thr, cls, false); ) UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args); functionExit(env); JNI_END JNI_ENTRY_CHECKED(jfieldID, checked_jni_GetStaticFieldID(JNIEnv *env, jclass clazz, const char *name, const char *sig)) functionEnter(thr); IN_VM( jniCheck::validate_class(thr, clazz, false); ) jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig); functionExit(env); return result; JNI_END #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \ JNI_ENTRY_CHECKED(ReturnType, \ checked_jni_GetStatic##Result##Field(JNIEnv *env, \ jclass clazz, \ jfieldID fieldID)) \ functionEnter(thr); \ IN_VM( \ jniCheck::validate_class(thr, clazz, false); \ checkStaticFieldID(thr, fieldID, clazz, FieldType); \ ) \ ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \ clazz, \ fieldID); \ functionExit(env); \ return result; \ JNI_END WRAPPER_GetStaticField(jobject, Object, T_OBJECT) WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN) WRAPPER_GetStaticField(jbyte, Byte, T_BYTE) WRAPPER_GetStaticField(jshort, Short, T_SHORT) WRAPPER_GetStaticField(jchar, Char, T_CHAR) WRAPPER_GetStaticField(jint, Int, T_INT) WRAPPER_GetStaticField(jlong, Long, T_LONG) WRAPPER_GetStaticField(jfloat, Float, T_FLOAT) WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE) #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \ JNI_ENTRY_CHECKED(void, \ checked_jni_SetStatic##Result##Field(JNIEnv *env, \ jclass clazz, \ jfieldID fieldID, \ ValueType value)) \ functionEnter(thr); \ IN_VM( \ jniCheck::validate_class(thr, clazz, false); \ checkStaticFieldID(thr, fieldID, clazz, FieldType); \ ) \ UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \ functionExit(env); \ JNI_END WRAPPER_SetStaticField(jobject, Object, T_OBJECT) WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN) WRAPPER_SetStaticField(jbyte, Byte, T_BYTE) WRAPPER_SetStaticField(jshort, Short, T_SHORT) WRAPPER_SetStaticField(jchar, Char, T_CHAR) WRAPPER_SetStaticField(jint, Int, T_INT) WRAPPER_SetStaticField(jlong, Long, T_LONG) WRAPPER_SetStaticField(jfloat, Float, T_FLOAT) WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE) JNI_ENTRY_CHECKED(jstring, checked_jni_NewString(JNIEnv *env, const jchar *unicode, jsize len)) functionEnter(thr); jstring result = UNCHECKED()->NewString(env,unicode,len); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jsize, checked_jni_GetStringLength(JNIEnv *env, jstring str)) functionEnter(thr); IN_VM( checkString(thr, str); ) jsize result = UNCHECKED()->GetStringLength(env,str); functionExit(env); return result; JNI_END // Arbitrary (but well-known) tag const jint STRING_TAG = 0x47114711; JNI_ENTRY_CHECKED(const jchar *, checked_jni_GetStringChars(JNIEnv *env, jstring str, jboolean *isCopy)) functionEnter(thr); IN_VM( checkString(thr, str); ) const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy); assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected"); size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination jint* tagLocation = (jint*) AllocateHeap(len * sizeof(jchar) + sizeof(jint), "checked_jni_GetStringChars"); *tagLocation = STRING_TAG; jchar* newResult = (jchar*) (tagLocation + 1); memcpy(newResult, result, len * sizeof(jchar)); // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes // Note that the dtrace arguments for the allocated memory will not match up with this solution. FreeHeap((char*)result); functionExit(env); return newResult; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars)) functionEnterExceptionAllowed(thr); IN_VM( checkString(thr, str); ) if (chars == NULL) { // still do the unchecked call to allow dtrace probes UNCHECKED()->ReleaseStringChars(env,str,chars); } else { jint* tagLocation = ((jint*) chars) - 1; if (*tagLocation != STRING_TAG) { NativeReportJNIFatalError(thr, "ReleaseStringChars called on something not allocated by GetStringChars"); } UNCHECKED()->ReleaseStringChars(env,str,(const jchar*)tagLocation); } functionExit(env); JNI_END JNI_ENTRY_CHECKED(jstring, checked_jni_NewStringUTF(JNIEnv *env, const char *utf)) functionEnter(thr); jstring result = UNCHECKED()->NewStringUTF(env,utf); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jsize, checked_jni_GetStringUTFLength(JNIEnv *env, jstring str)) functionEnter(thr); IN_VM( checkString(thr, str); ) jsize result = UNCHECKED()->GetStringUTFLength(env,str); functionExit(env); return result; JNI_END // Arbitrary (but well-known) tag - different than GetStringChars const jint STRING_UTF_TAG = 0x48124812; JNI_ENTRY_CHECKED(const char *, checked_jni_GetStringUTFChars(JNIEnv *env, jstring str, jboolean *isCopy)) functionEnter(thr); IN_VM( checkString(thr, str); ) const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy); assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected"); size_t len = strlen(result) + 1; // + 1 for NULL termination jint* tagLocation = (jint*) AllocateHeap(len + sizeof(jint), "checked_jni_GetStringUTFChars"); *tagLocation = STRING_UTF_TAG; char* newResult = (char*) (tagLocation + 1); strcpy(newResult, result); // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes // Note that the dtrace arguments for the allocated memory will not match up with this solution. FreeHeap((char*)result); functionExit(env); return newResult; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char* chars)) functionEnterExceptionAllowed(thr); IN_VM( checkString(thr, str); ) if (chars == NULL) { // still do the unchecked call to allow dtrace probes UNCHECKED()->ReleaseStringUTFChars(env,str,chars); } else { jint* tagLocation = ((jint*) chars) - 1; if (*tagLocation != STRING_UTF_TAG) { NativeReportJNIFatalError(thr, "ReleaseStringUTFChars called on something not allocated by GetStringUTFChars"); } UNCHECKED()->ReleaseStringUTFChars(env,str,(const char*)tagLocation); } functionExit(env); JNI_END JNI_ENTRY_CHECKED(jsize, checked_jni_GetArrayLength(JNIEnv *env, jarray array)) functionEnter(thr); IN_VM( checkArray(thr, array, -1); ) jsize result = UNCHECKED()->GetArrayLength(env,array); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobjectArray, checked_jni_NewObjectArray(JNIEnv *env, jsize len, jclass clazz, jobject init)) functionEnter(thr); jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index)) functionEnter(thr); IN_VM( checkArray(thr, array, T_OBJECT); ) jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject val)) functionEnter(thr); IN_VM( checkArray(thr, array, T_OBJECT); ) UNCHECKED()->SetObjectArrayElement(env,array,index,val); functionExit(env); JNI_END #define WRAPPER_NewScalarArray(Return, Result) \ JNI_ENTRY_CHECKED(Return, \ checked_jni_New##Result##Array(JNIEnv *env, \ jsize len)) \ functionEnter(thr); \ Return result = UNCHECKED()->New##Result##Array(env,len); \ functionExit(env); \ return (Return) result; \ JNI_END WRAPPER_NewScalarArray(jbooleanArray, Boolean) WRAPPER_NewScalarArray(jbyteArray, Byte) WRAPPER_NewScalarArray(jshortArray, Short) WRAPPER_NewScalarArray(jcharArray, Char) WRAPPER_NewScalarArray(jintArray, Int) WRAPPER_NewScalarArray(jlongArray, Long) WRAPPER_NewScalarArray(jfloatArray, Float) WRAPPER_NewScalarArray(jdoubleArray, Double) #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \ JNI_ENTRY_CHECKED(ElementType *, \ checked_jni_Get##Result##ArrayElements(JNIEnv *env, \ ElementType##Array array, \ jboolean *isCopy)) \ functionEnter(thr); \ IN_VM( \ checkArray(thr, array, ElementTag); \ ) \ ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \ array, \ isCopy); \ functionExit(env); \ return result; \ JNI_END WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean) WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte) WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short) WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char) WRAPPER_GetScalarArrayElements(T_INT, jint, Int) WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long) WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float) WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double) #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \ JNI_ENTRY_CHECKED(void, \ checked_jni_Release##Result##ArrayElements(JNIEnv *env, \ ElementType##Array array, \ ElementType *elems, \ jint mode)) \ functionEnterExceptionAllowed(thr); \ IN_VM( \ checkArray(thr, array, ElementTag); \ ASSERT_OOPS_ALLOWED; \ typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ /* cannot check validity of copy, unless every request is logged by * checking code. Implementation of this check is deferred until a * subsequent release. */ \ ) \ UNCHECKED()->Release##Result##ArrayElements(env,array,elems,mode); \ functionExit(env); \ JNI_END WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool) WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte) WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short) WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char) WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int) WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long) WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float) WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double) #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \ JNI_ENTRY_CHECKED(void, \ checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \ ElementType##Array array, \ jsize start, \ jsize len, \ ElementType *buf)) \ functionEnter(thr); \ IN_VM( \ checkArray(thr, array, ElementTag); \ ) \ UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \ functionExit(env); \ JNI_END WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean) WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte) WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short) WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char) WRAPPER_GetScalarArrayRegion(T_INT, jint, Int) WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long) WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float) WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double) #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \ JNI_ENTRY_CHECKED(void, \ checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \ ElementType##Array array, \ jsize start, \ jsize len, \ const ElementType *buf)) \ functionEnter(thr); \ IN_VM( \ checkArray(thr, array, ElementTag); \ ) \ UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \ functionExit(env); \ JNI_END WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean) WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte) WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short) WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char) WRAPPER_SetScalarArrayRegion(T_INT, jint, Int) WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long) WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float) WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double) JNI_ENTRY_CHECKED(jint, checked_jni_RegisterNatives(JNIEnv *env, jclass clazz, const JNINativeMethod *methods, jint nMethods)) functionEnter(thr); jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_UnregisterNatives(JNIEnv *env, jclass clazz)) functionEnter(thr); jint result = UNCHECKED()->UnregisterNatives(env,clazz); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_MonitorEnter(JNIEnv *env, jobject obj)) functionEnter(thr); IN_VM( jniCheck::validate_object(thr, obj); ) jint result = UNCHECKED()->MonitorEnter(env,obj); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_MonitorExit(JNIEnv *env, jobject obj)) functionEnterExceptionAllowed(thr); IN_VM( jniCheck::validate_object(thr, obj); ) jint result = UNCHECKED()->MonitorExit(env,obj); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_GetJavaVM(JNIEnv *env, JavaVM **vm)) functionEnter(thr); jint result = UNCHECKED()->GetJavaVM(env,vm); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_GetStringRegion(JNIEnv *env, jstring str, jsize start, jsize len, jchar *buf)) functionEnter(thr); IN_VM( checkString(thr, str); ) UNCHECKED()->GetStringRegion(env, str, start, len, buf); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void, checked_jni_GetStringUTFRegion(JNIEnv *env, jstring str, jsize start, jsize len, char *buf)) functionEnter(thr); IN_VM( checkString(thr, str); ) UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf); functionExit(env); JNI_END JNI_ENTRY_CHECKED(void *, checked_jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy)) functionEnterCritical(thr); IN_VM( checkArray(thr, array, -1); ) void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode)) functionEnterCriticalExceptionAllowed(thr); IN_VM( checkArray(thr, array, -1); ) /* The Hotspot JNI code does not use the parameters, so just check the * array parameter as a minor sanity check */ UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, carray, mode); functionExit(env); JNI_END JNI_ENTRY_CHECKED(const jchar*, checked_jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy)) functionEnterCritical(thr); IN_VM( checkString(thr, string); ) const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars)) functionEnterCriticalExceptionAllowed(thr); IN_VM( checkString(thr, str); ) /* The Hotspot JNI code does not use the parameters, so just check the * string parameter as a minor sanity check */ UNCHECKED()->ReleaseStringCritical(env, str, chars); functionExit(env); JNI_END JNI_ENTRY_CHECKED(jweak, checked_jni_NewWeakGlobalRef(JNIEnv *env, jobject obj)) functionEnter(thr); IN_VM( if (obj != NULL) { jniCheck::validate_handle(thr, obj); } ) jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(void, checked_jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref)) functionEnterExceptionAllowed(thr); UNCHECKED()->DeleteWeakGlobalRef(env, ref); functionExit(env); JNI_END JNI_ENTRY_CHECKED(jboolean, checked_jni_ExceptionCheck(JNIEnv *env)) functionEnterExceptionAllowed(thr); jboolean result = UNCHECKED()->ExceptionCheck(env); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobject, checked_jni_NewDirectByteBuffer(JNIEnv *env, void *address, jlong capacity)) functionEnter(thr); jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(void *, checked_jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)) functionEnter(thr); void* result = UNCHECKED()->GetDirectBufferAddress(env, buf); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jlong, checked_jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)) functionEnter(thr); jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jobjectRefType, checked_jni_GetObjectRefType(JNIEnv *env, jobject obj)) functionEnter(thr); /* validate the object being passed */ IN_VM( jniCheck::validate_object(thr, obj); ) jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj); functionExit(env); return result; JNI_END JNI_ENTRY_CHECKED(jint, checked_jni_GetVersion(JNIEnv *env)) functionEnter(thr); jint result = UNCHECKED()->GetVersion(env); functionExit(env); return result; JNI_END /* * Structure containing all checked jni functions */ struct JNINativeInterface_ checked_jni_NativeInterface = { NULL, NULL, NULL, NULL, checked_jni_GetVersion, checked_jni_DefineClass, checked_jni_FindClass, checked_jni_FromReflectedMethod, checked_jni_FromReflectedField, checked_jni_ToReflectedMethod, checked_jni_GetSuperclass, checked_jni_IsAssignableFrom, checked_jni_ToReflectedField, checked_jni_Throw, checked_jni_ThrowNew, checked_jni_ExceptionOccurred, checked_jni_ExceptionDescribe, checked_jni_ExceptionClear, checked_jni_FatalError, checked_jni_PushLocalFrame, checked_jni_PopLocalFrame, checked_jni_NewGlobalRef, checked_jni_DeleteGlobalRef, checked_jni_DeleteLocalRef, checked_jni_IsSameObject, checked_jni_NewLocalRef, checked_jni_EnsureLocalCapacity, checked_jni_AllocObject, checked_jni_NewObject, checked_jni_NewObjectV, checked_jni_NewObjectA, checked_jni_GetObjectClass, checked_jni_IsInstanceOf, checked_jni_GetMethodID, checked_jni_CallObjectMethod, checked_jni_CallObjectMethodV, checked_jni_CallObjectMethodA, checked_jni_CallBooleanMethod, checked_jni_CallBooleanMethodV, checked_jni_CallBooleanMethodA, checked_jni_CallByteMethod, checked_jni_CallByteMethodV, checked_jni_CallByteMethodA, checked_jni_CallCharMethod, checked_jni_CallCharMethodV, checked_jni_CallCharMethodA, checked_jni_CallShortMethod, checked_jni_CallShortMethodV, checked_jni_CallShortMethodA, checked_jni_CallIntMethod, checked_jni_CallIntMethodV, checked_jni_CallIntMethodA, checked_jni_CallLongMethod, checked_jni_CallLongMethodV, checked_jni_CallLongMethodA, checked_jni_CallFloatMethod, checked_jni_CallFloatMethodV, checked_jni_CallFloatMethodA, checked_jni_CallDoubleMethod, checked_jni_CallDoubleMethodV, checked_jni_CallDoubleMethodA, checked_jni_CallVoidMethod, checked_jni_CallVoidMethodV, checked_jni_CallVoidMethodA, checked_jni_CallNonvirtualObjectMethod, checked_jni_CallNonvirtualObjectMethodV, checked_jni_CallNonvirtualObjectMethodA, checked_jni_CallNonvirtualBooleanMethod, checked_jni_CallNonvirtualBooleanMethodV, checked_jni_CallNonvirtualBooleanMethodA, checked_jni_CallNonvirtualByteMethod, checked_jni_CallNonvirtualByteMethodV, checked_jni_CallNonvirtualByteMethodA, checked_jni_CallNonvirtualCharMethod, checked_jni_CallNonvirtualCharMethodV, checked_jni_CallNonvirtualCharMethodA, checked_jni_CallNonvirtualShortMethod, checked_jni_CallNonvirtualShortMethodV, checked_jni_CallNonvirtualShortMethodA, checked_jni_CallNonvirtualIntMethod, checked_jni_CallNonvirtualIntMethodV, checked_jni_CallNonvirtualIntMethodA, checked_jni_CallNonvirtualLongMethod, checked_jni_CallNonvirtualLongMethodV, checked_jni_CallNonvirtualLongMethodA, checked_jni_CallNonvirtualFloatMethod, checked_jni_CallNonvirtualFloatMethodV, checked_jni_CallNonvirtualFloatMethodA, checked_jni_CallNonvirtualDoubleMethod, checked_jni_CallNonvirtualDoubleMethodV, checked_jni_CallNonvirtualDoubleMethodA, checked_jni_CallNonvirtualVoidMethod, checked_jni_CallNonvirtualVoidMethodV, checked_jni_CallNonvirtualVoidMethodA, checked_jni_GetFieldID, checked_jni_GetObjectField, checked_jni_GetBooleanField, checked_jni_GetByteField, checked_jni_GetCharField, checked_jni_GetShortField, checked_jni_GetIntField, checked_jni_GetLongField, checked_jni_GetFloatField, checked_jni_GetDoubleField, checked_jni_SetObjectField, checked_jni_SetBooleanField, checked_jni_SetByteField, checked_jni_SetCharField, checked_jni_SetShortField, checked_jni_SetIntField, checked_jni_SetLongField, checked_jni_SetFloatField, checked_jni_SetDoubleField, checked_jni_GetStaticMethodID, checked_jni_CallStaticObjectMethod, checked_jni_CallStaticObjectMethodV, checked_jni_CallStaticObjectMethodA, checked_jni_CallStaticBooleanMethod, checked_jni_CallStaticBooleanMethodV, checked_jni_CallStaticBooleanMethodA, checked_jni_CallStaticByteMethod, checked_jni_CallStaticByteMethodV, checked_jni_CallStaticByteMethodA, checked_jni_CallStaticCharMethod, checked_jni_CallStaticCharMethodV, checked_jni_CallStaticCharMethodA, checked_jni_CallStaticShortMethod, checked_jni_CallStaticShortMethodV, checked_jni_CallStaticShortMethodA, checked_jni_CallStaticIntMethod, checked_jni_CallStaticIntMethodV, checked_jni_CallStaticIntMethodA, checked_jni_CallStaticLongMethod, checked_jni_CallStaticLongMethodV, checked_jni_CallStaticLongMethodA, checked_jni_CallStaticFloatMethod, checked_jni_CallStaticFloatMethodV, checked_jni_CallStaticFloatMethodA, checked_jni_CallStaticDoubleMethod, checked_jni_CallStaticDoubleMethodV, checked_jni_CallStaticDoubleMethodA, checked_jni_CallStaticVoidMethod, checked_jni_CallStaticVoidMethodV, checked_jni_CallStaticVoidMethodA, checked_jni_GetStaticFieldID, checked_jni_GetStaticObjectField, checked_jni_GetStaticBooleanField, checked_jni_GetStaticByteField, checked_jni_GetStaticCharField, checked_jni_GetStaticShortField, checked_jni_GetStaticIntField, checked_jni_GetStaticLongField, checked_jni_GetStaticFloatField, checked_jni_GetStaticDoubleField, checked_jni_SetStaticObjectField, checked_jni_SetStaticBooleanField, checked_jni_SetStaticByteField, checked_jni_SetStaticCharField, checked_jni_SetStaticShortField, checked_jni_SetStaticIntField, checked_jni_SetStaticLongField, checked_jni_SetStaticFloatField, checked_jni_SetStaticDoubleField, checked_jni_NewString, checked_jni_GetStringLength, checked_jni_GetStringChars, checked_jni_ReleaseStringChars, checked_jni_NewStringUTF, checked_jni_GetStringUTFLength, checked_jni_GetStringUTFChars, checked_jni_ReleaseStringUTFChars, checked_jni_GetArrayLength, checked_jni_NewObjectArray, checked_jni_GetObjectArrayElement, checked_jni_SetObjectArrayElement, checked_jni_NewBooleanArray, checked_jni_NewByteArray, checked_jni_NewCharArray, checked_jni_NewShortArray, checked_jni_NewIntArray, checked_jni_NewLongArray, checked_jni_NewFloatArray, checked_jni_NewDoubleArray, checked_jni_GetBooleanArrayElements, checked_jni_GetByteArrayElements, checked_jni_GetCharArrayElements, checked_jni_GetShortArrayElements, checked_jni_GetIntArrayElements, checked_jni_GetLongArrayElements, checked_jni_GetFloatArrayElements, checked_jni_GetDoubleArrayElements, checked_jni_ReleaseBooleanArrayElements, checked_jni_ReleaseByteArrayElements, checked_jni_ReleaseCharArrayElements, checked_jni_ReleaseShortArrayElements, checked_jni_ReleaseIntArrayElements, checked_jni_ReleaseLongArrayElements, checked_jni_ReleaseFloatArrayElements, checked_jni_ReleaseDoubleArrayElements, checked_jni_GetBooleanArrayRegion, checked_jni_GetByteArrayRegion, checked_jni_GetCharArrayRegion, checked_jni_GetShortArrayRegion, checked_jni_GetIntArrayRegion, checked_jni_GetLongArrayRegion, checked_jni_GetFloatArrayRegion, checked_jni_GetDoubleArrayRegion, checked_jni_SetBooleanArrayRegion, checked_jni_SetByteArrayRegion, checked_jni_SetCharArrayRegion, checked_jni_SetShortArrayRegion, checked_jni_SetIntArrayRegion, checked_jni_SetLongArrayRegion, checked_jni_SetFloatArrayRegion, checked_jni_SetDoubleArrayRegion, checked_jni_RegisterNatives, checked_jni_UnregisterNatives, checked_jni_MonitorEnter, checked_jni_MonitorExit, checked_jni_GetJavaVM, checked_jni_GetStringRegion, checked_jni_GetStringUTFRegion, checked_jni_GetPrimitiveArrayCritical, checked_jni_ReleasePrimitiveArrayCritical, checked_jni_GetStringCritical, checked_jni_ReleaseStringCritical, checked_jni_NewWeakGlobalRef, checked_jni_DeleteWeakGlobalRef, checked_jni_ExceptionCheck, checked_jni_NewDirectByteBuffer, checked_jni_GetDirectBufferAddress, checked_jni_GetDirectBufferCapacity, // New 1.6 Features checked_jni_GetObjectRefType }; // Returns the function structure struct JNINativeInterface_* jni_functions_check() { unchecked_jni_NativeInterface = jni_functions_nocheck(); // make sure the last pointer in the checked table is not null, indicating // an addition to the JNINativeInterface_ structure without initializing // it in the checked table. debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \ sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));) assert(*lastPtr != 0, "Mismatched JNINativeInterface tables, check for new entries"); // with -verbose:jni this message will print if (PrintJNIResolving) { tty->print_cr("Checked JNI functions are being used to " \ "validate JNI usage"); } return &checked_jni_NativeInterface; }