1 /* 2 * Copyright (c) 2016, 2018, 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_VM_JFR_JNI_JFRJAVASUPPORT_HPP 26 #define SHARE_VM_JFR_JNI_JFRJAVASUPPORT_HPP 27 28 #include "jfr/jni/jfrJavaCall.hpp" 29 #include "utilities/exceptions.hpp" 30 31 class Klass; 32 class JavaThread; 33 class outputStream; 34 35 class JfrJavaSupport : public AllStatic { 36 public: 37 static jobject local_jni_handle(const oop obj, Thread* t); 38 static jobject local_jni_handle(const jobject handle, Thread* t); 39 static void destroy_local_jni_handle(const jobject handle); 40 41 static jobject global_jni_handle(const oop obj, Thread* t); 42 static jobject global_jni_handle(const jobject handle, Thread* t); 43 static void destroy_global_jni_handle(const jobject handle); 44 45 static oop resolve_non_null(jobject obj); 46 static void notify_all(jobject obj, TRAPS); 47 static void set_array_element(jobjectArray arr, jobject element, int index, Thread* t); 48 49 // naked oop result 50 static void call_static(JfrJavaArguments* args, TRAPS); 51 static void call_special(JfrJavaArguments* args, TRAPS); 52 static void call_virtual(JfrJavaArguments* args, TRAPS); 53 54 static void set_field(JfrJavaArguments* args, TRAPS); 55 static void get_field(JfrJavaArguments* args, TRAPS); 56 static void new_object(JfrJavaArguments* args, TRAPS); 57 58 // global jni handle result 59 static void new_object_global_ref(JfrJavaArguments* args, TRAPS); 60 static void get_field_global_ref(JfrJavaArguments* args, TRAPS); 61 62 // local jni handle result 63 static void new_object_local_ref(JfrJavaArguments* args, TRAPS); 64 static void get_field_local_ref(JfrJavaArguments* args, TRAPS); 65 66 static jstring new_string(const char* c_str, TRAPS); 67 static jobjectArray new_string_array(int length, TRAPS); 68 69 static jobject new_java_lang_Boolean(bool value, TRAPS); 70 static jobject new_java_lang_Integer(jint value, TRAPS); 71 static jobject new_java_lang_Long(jlong value, TRAPS); 72 73 // misc 74 static Klass* klass(const jobject handle); 75 // caller needs ResourceMark 76 static const char* c_str(jstring string, Thread* jt); 77 78 // exceptions 79 static void throw_illegal_state_exception(const char* message, TRAPS); 80 static void throw_illegal_argument_exception(const char* message, TRAPS); 81 static void throw_internal_error(const char* message, TRAPS); 82 static void throw_out_of_memory_error(const char* message, TRAPS); 83 static void throw_class_format_error(const char* message, TRAPS); 84 85 static bool is_jdk_jfr_module_available(); 86 static bool is_jdk_jfr_module_available(outputStream* stream, TRAPS); 87 88 static jlong jfr_thread_id(jobject target_thread); 89 90 // critical 91 static void abort(jstring errorMsg, TRAPS); 92 static void uncaught_exception(jthrowable throwable, Thread* t); 93 94 // asserts 95 DEBUG_ONLY(static void check_java_thread_in_vm(Thread* t);) 96 DEBUG_ONLY(static void check_java_thread_in_native(Thread* t);) 97 98 enum CAUSE { 99 VM_ERROR, 100 OUT_OF_MEMORY, 101 STACK_OVERFLOW, 102 RUNTIME_EXCEPTION, 103 UNKNOWN, 104 NOF_CAUSES 105 }; 106 107 static CAUSE cause(); 108 109 private: 110 static CAUSE _cause; 111 static void set_cause(jthrowable throwable, Thread* t); 112 }; 113 114 #endif // SHARE_VM_JFR_JNI_JFRJAVASUPPORT_HPP