1 /* 2 * Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_PRIMS_JVM_MISC_HPP 26 #define SHARE_PRIMS_JVM_MISC_HPP 27 28 #include "jni.h" 29 #include "runtime/handles.hpp" 30 31 // Useful entry points shared by JNI and JVM interface. 32 // We do not allow real JNI or JVM entry point to call each other. 33 34 jclass find_class_from_class_loader(JNIEnv* env, Symbol* name, jboolean init, Handle loader, Handle protection_domain, jboolean throwError, TRAPS); 35 36 void trace_class_resolution(Klass* to_class); 37 38 /* 39 * Support for -Xcheck:jni 40 */ 41 42 extern struct JNINativeInterface_* jni_functions_nocheck(); 43 extern struct JNINativeInterface_* jni_functions_check(); 44 45 /* 46 * Support for swappable jni function table. 47 */ 48 extern struct JNINativeInterface_* jni_functions(); 49 extern void copy_jni_function_table(const struct JNINativeInterface_* new_function_table); 50 51 // Support for fast JNI accessors 52 extern "C" { 53 typedef jboolean (JNICALL *GetBooleanField_t) 54 (JNIEnv *env, jobject obj, jfieldID fieldID); 55 typedef jbyte (JNICALL *GetByteField_t) 56 (JNIEnv *env, jobject obj, jfieldID fieldID); 57 typedef jchar (JNICALL *GetCharField_t) 58 (JNIEnv *env, jobject obj, jfieldID fieldID); 59 typedef jshort (JNICALL *GetShortField_t) 60 (JNIEnv *env, jobject obj, jfieldID fieldID); 61 typedef jint (JNICALL *GetIntField_t) 62 (JNIEnv *env, jobject obj, jfieldID fieldID); 63 typedef jlong (JNICALL *GetLongField_t) 64 (JNIEnv *env, jobject obj, jfieldID fieldID); 65 typedef jfloat (JNICALL *GetFloatField_t) 66 (JNIEnv *env, jobject obj, jfieldID fieldID); 67 typedef jdouble (JNICALL *GetDoubleField_t) 68 (JNIEnv *env, jobject obj, jfieldID fieldID); 69 } 70 71 void quicken_jni_functions(); 72 address jni_GetBooleanField_addr(); 73 address jni_GetByteField_addr(); 74 address jni_GetCharField_addr(); 75 address jni_GetShortField_addr(); 76 address jni_GetIntField_addr(); 77 address jni_GetLongField_addr(); 78 address jni_GetFloatField_addr(); 79 address jni_GetDoubleField_addr(); 80 81 #endif // SHARE_PRIMS_JVM_MISC_HPP 82