1 /* 2 * Copyright (c) 1997, 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_INTERPRETER_INTERPRETERRUNTIME_HPP 26 #define SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP 27 28 #include "interpreter/bytecode.hpp" 29 #include "interpreter/linkResolver.hpp" 30 #include "memory/universe.hpp" 31 #include "oops/method.hpp" 32 #include "runtime/frame.hpp" 33 #include "runtime/signature.hpp" 34 #include "runtime/thread.hpp" 35 #include "utilities/macros.hpp" 36 37 // The InterpreterRuntime is called by the interpreter for everything 38 // that cannot/should not be dealt with in assembly and needs C support. 39 40 class InterpreterRuntime: AllStatic { 41 friend class BytecodeClosure; // for method and bcp 42 friend class PrintingClosure; // for method and bcp 43 44 private: 45 46 static void set_bcp_and_mdp(address bcp, JavaThread*thread); 47 static void note_trap_inner(JavaThread* thread, int reason, 48 const methodHandle& trap_method, int trap_bci, TRAPS); 49 static void note_trap(JavaThread *thread, int reason, TRAPS); 50 #ifdef CC_INTERP 51 // Profile traps in C++ interpreter. 52 static void note_trap(JavaThread* thread, int reason, Method *method, int trap_bci); 53 #endif // CC_INTERP 54 55 // Inner work method for Interpreter's frequency counter overflow. 56 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp); 57 58 public: 59 // Constants 60 static void ldc (JavaThread* thread, bool wide); 61 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode); 62 63 // Allocation 64 static void _new (JavaThread* thread, ConstantPool* pool, int index); 65 static void newarray (JavaThread* thread, BasicType type, jint size); 66 static void anewarray (JavaThread* thread, ConstantPool* pool, int index, jint size); 67 static void multianewarray(JavaThread* thread, jint* first_size_address); 68 static void register_finalizer(JavaThread* thread, oopDesc* obj); 69 static void defaultvalue (JavaThread* thread, ConstantPool* pool, int index); 70 static int withfield (JavaThread* thread, ConstantPoolCache* cp_cache); 71 static void uninitialized_static_value_field(JavaThread* thread, oopDesc* mirror, int offset); 72 static void uninitialized_instance_value_field(JavaThread* thread, oopDesc* obj, int offset); 73 static void write_heap_copy (JavaThread* thread, oopDesc* value, int offset, oopDesc* rcv); 74 static void write_flattened_value(JavaThread* thread, oopDesc* value, int offset, oopDesc* rcv); 75 static void read_flattened_field(JavaThread* thread, oopDesc* value, int index, Klass* field_holder); 76 77 // Value Buffers support 78 static void recycle_vtbuffer(void *alloc_ptr); 79 static void recycle_buffered_values(JavaThread* thread); 80 static void return_value(JavaThread* thread, oopDesc* obj); 81 static void return_value_step2(oopDesc* obj, void* alloc_ptr); 82 static void fix_frame_vt_alloc_ptr(JavaThread* thread); 83 static void value_heap_copy(JavaThread* thread, oopDesc* value); 84 85 static void value_array_load(JavaThread* thread, arrayOopDesc* array, int index); 86 static void value_array_store(JavaThread* thread, void* val, arrayOopDesc* array, int index); 87 88 // Quicken instance-of and check-cast bytecodes 89 static void quicken_io_cc(JavaThread* thread); 90 91 // Exceptions thrown by the interpreter 92 static void throw_AbstractMethodError(JavaThread* thread); 93 static void throw_AbstractMethodErrorWithMethod(JavaThread* thread, Method* oop); 94 static void throw_AbstractMethodErrorVerbose(JavaThread* thread, 95 Klass* recvKlass, 96 Method* missingMethod); 97 98 static void throw_IncompatibleClassChangeError(JavaThread* thread); 99 static void throw_IncompatibleClassChangeErrorVerbose(JavaThread* thread, 100 Klass* resc, 101 Klass* interfaceKlass); 102 static void throw_StackOverflowError(JavaThread* thread); 103 static void throw_delayed_StackOverflowError(JavaThread* thread); 104 static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, arrayOopDesc* a, jint index); 105 static void throw_ClassCastException(JavaThread* thread, oopDesc* obj); 106 static void create_exception(JavaThread* thread, char* name, char* message); 107 static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj); 108 static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception); 109 #if INCLUDE_JVMTI 110 static void member_name_arg_or_null(JavaThread* thread, address dmh, Method* m, address bcp); 111 #endif 112 static void throw_pending_exception(JavaThread* thread); 113 114 #ifdef CC_INTERP 115 // Profile traps in C++ interpreter. 116 static void note_nullCheck_trap (JavaThread* thread, Method *method, int trap_bci); 117 static void note_div0Check_trap (JavaThread* thread, Method *method, int trap_bci); 118 static void note_rangeCheck_trap(JavaThread* thread, Method *method, int trap_bci); 119 static void note_classCheck_trap(JavaThread* thread, Method *method, int trap_bci); 120 static void note_arrayCheck_trap(JavaThread* thread, Method *method, int trap_bci); 121 // A dummy for macros that shall not profile traps. 122 static void note_no_trap(JavaThread* thread, Method *method, int trap_bci) {} 123 #endif // CC_INTERP 124 125 static void resolve_from_cache(JavaThread* thread, Bytecodes::Code bytecode); 126 private: 127 // Statics & fields 128 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode); 129 130 // Calls 131 static void resolve_invoke(JavaThread* thread, Bytecodes::Code bytecode); 132 static void resolve_invokehandle (JavaThread* thread); 133 static void resolve_invokedynamic(JavaThread* thread); 134 135 public: 136 // Synchronization 137 static void monitorenter(JavaThread* thread, BasicObjectLock* elem); 138 static void monitorexit (JavaThread* thread, BasicObjectLock* elem); 139 140 static void throw_illegal_monitor_state_exception(JavaThread* thread); 141 static void new_illegal_monitor_state_exception(JavaThread* thread); 142 143 // Breakpoints 144 static void _breakpoint(JavaThread* thread, Method* method, address bcp); 145 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, Method* method, address bcp); 146 static void set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code); 147 static bool is_breakpoint(JavaThread *thread); 148 149 // Safepoints 150 static void at_safepoint(JavaThread* thread); 151 152 // Debugger support 153 static void post_field_access(JavaThread *thread, oopDesc* obj, 154 ConstantPoolCacheEntry *cp_entry); 155 static void post_field_modification(JavaThread *thread, oopDesc* obj, 156 ConstantPoolCacheEntry *cp_entry, jvalue *value); 157 static void post_method_entry(JavaThread *thread); 158 static void post_method_exit (JavaThread *thread); 159 static int interpreter_contains(address pc); 160 161 // Native signature handlers 162 static void prepare_native_call(JavaThread* thread, Method* method); 163 static address slow_signature_handler(JavaThread* thread, 164 Method* method, 165 intptr_t* from, intptr_t* to); 166 167 #if defined(IA32) || defined(AMD64) || defined(ARM) 168 // Popframe support (only needed on x86, AMD64 and ARM) 169 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address); 170 #endif 171 172 // bytecode tracing is only used by the TraceBytecodes 173 static intptr_t trace_bytecode(JavaThread* thread, intptr_t preserve_this_value, intptr_t tos, intptr_t tos2) PRODUCT_RETURN0; 174 175 // Platform dependent stuff 176 #include CPU_HEADER(interpreterRT) 177 178 // optional normalization of fingerprints to reduce the number of adapters 179 static uint64_t normalize_fast_native_fingerprint(uint64_t fingerprint); 180 181 // Interpreter's frequency counter overflow 182 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp); 183 184 // Interpreter profiling support 185 static jint bcp_to_di(Method* method, address cur_bcp); 186 static void profile_method(JavaThread* thread); 187 static void update_mdp_for_ret(JavaThread* thread, int bci); 188 #ifdef ASSERT 189 static void verify_mdp(Method* method, address bcp, address mdp); 190 #endif // ASSERT 191 static MethodCounters* build_method_counters(JavaThread* thread, Method* m); 192 }; 193 194 195 class SignatureHandlerLibrary: public AllStatic { 196 public: 197 enum { buffer_size = 1*K }; // the size of the temporary code buffer 198 enum { blob_size = 32*K }; // the size of a handler code blob. 199 200 private: 201 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers 202 static address _handler; // next available address within _handler_blob; 203 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection 204 static GrowableArray<address>* _handlers; // the corresponding handlers 205 static address _buffer; // the temporary code buffer 206 207 static address set_handler_blob(); 208 static void initialize(); 209 static address set_handler(CodeBuffer* buffer); 210 static void pd_set_handler(address handler); 211 212 public: 213 static void add(const methodHandle& method); 214 static void add(uint64_t fingerprint, address handler); 215 }; 216 217 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP