1 /* 2 * Copyright (c) 1997, 2013, 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.inline.hpp" 33 #include "runtime/signature.hpp" 34 #include "runtime/thread.inline.hpp" 35 #include "utilities/top.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 // Helper functions to access current interpreter state 46 static frame last_frame(JavaThread *thread) { return thread->last_frame(); } 47 static Method* method(JavaThread *thread) { return last_frame(thread).interpreter_frame_method(); } 48 static address bcp(JavaThread *thread) { return last_frame(thread).interpreter_frame_bcp(); } 49 static int bci(JavaThread *thread) { return last_frame(thread).interpreter_frame_bci(); } 50 static void set_bcp_and_mdp(address bcp, JavaThread*thread); 51 static Bytecodes::Code code(JavaThread *thread) { 52 // pass method to avoid calling unsafe bcp_to_method (partial fix 4926272) 53 return Bytecodes::code_at(method(thread), bcp(thread)); 54 } 55 static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); } 56 static Bytecode bytecode(JavaThread *thread) { return Bytecode(method(thread), bcp(thread)); } 57 static int get_index_u1(JavaThread *thread, Bytecodes::Code bc) 58 { return bytecode(thread).get_index_u1(bc); } 59 static int get_index_u2(JavaThread *thread, Bytecodes::Code bc) 60 { return bytecode(thread).get_index_u2(bc); } 61 static int get_index_u2_cpcache(JavaThread *thread, Bytecodes::Code bc) 62 { return bytecode(thread).get_index_u2_cpcache(bc); } 63 static int get_index_u4(JavaThread *thread, Bytecodes::Code bc) 64 { return bytecode(thread).get_index_u4(bc); } 65 static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; } 66 67 static ConstantPoolCacheEntry* cache_entry_at(JavaThread *thread, int i) { return method(thread)->constants()->cache()->entry_at(i); } 68 static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return cache_entry_at(thread, Bytes::get_native_u2(bcp(thread) + 1)); } 69 static void note_trap(JavaThread *thread, int reason, TRAPS); 70 71 // Inner work method for Interpreter's frequency counter overflow 72 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp); 73 74 public: 75 // Constants 76 static void ldc (JavaThread* thread, bool wide); 77 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode); 78 79 // Allocation 80 static void _new (JavaThread* thread, ConstantPool* pool, int index); 81 static void newarray (JavaThread* thread, BasicType type, jint size); 82 static void anewarray (JavaThread* thread, ConstantPool* pool, int index, jint size); 83 static void multianewarray(JavaThread* thread, jint* first_size_address); 84 static void register_finalizer(JavaThread* thread, oopDesc* obj); 85 86 // Quicken instance-of and check-cast bytecodes 87 static void quicken_io_cc(JavaThread* thread); 88 89 // Exceptions thrown by the interpreter 90 static void throw_AbstractMethodError(JavaThread* thread); 91 static void throw_IncompatibleClassChangeError(JavaThread* thread); 92 static void throw_StackOverflowError(JavaThread* thread); 93 static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index); 94 static void throw_ClassCastException(JavaThread* thread, oopDesc* obj); 95 static void create_exception(JavaThread* thread, char* name, char* message); 96 static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj); 97 static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception); 98 #if INCLUDE_JVMTI 99 static void member_name_arg_or_null(JavaThread* thread, address dmh, Method* m, address bcp); 100 #endif 101 static void throw_pending_exception(JavaThread* thread); 102 103 // Statics & fields 104 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode); 105 106 // Synchronization 107 static void monitorenter(JavaThread* thread, BasicObjectLock* elem); 108 static void monitorexit (JavaThread* thread, BasicObjectLock* elem); 109 110 static void throw_illegal_monitor_state_exception(JavaThread* thread); 111 static void new_illegal_monitor_state_exception(JavaThread* thread); 112 113 // Calls 114 static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode); 115 static void resolve_invokehandle (JavaThread* thread); 116 static void resolve_invokedynamic(JavaThread* thread); 117 118 // Breakpoints 119 static void _breakpoint(JavaThread* thread, Method* method, address bcp); 120 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, Method* method, address bcp); 121 static void set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code); 122 static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; } 123 124 // Safepoints 125 static void at_safepoint(JavaThread* thread); 126 127 // Debugger support 128 static void post_field_access(JavaThread *thread, oopDesc* obj, 129 ConstantPoolCacheEntry *cp_entry); 130 static void post_field_modification(JavaThread *thread, oopDesc* obj, 131 ConstantPoolCacheEntry *cp_entry, jvalue *value); 132 static void post_method_entry(JavaThread *thread); 133 static void post_method_exit (JavaThread *thread); 134 static int interpreter_contains(address pc); 135 136 // Native signature handlers 137 static void prepare_native_call(JavaThread* thread, Method* method); 138 static address slow_signature_handler(JavaThread* thread, 139 Method* method, 140 intptr_t* from, intptr_t* to); 141 142 #if defined(IA32) || defined(AMD64) || defined(ARM) 143 // Popframe support (only needed on x86, AMD64 and ARM) 144 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address); 145 #endif 146 147 // Platform dependent stuff 148 #ifdef TARGET_ARCH_x86 149 # include "interpreterRT_x86.hpp" 150 #endif 151 #ifdef TARGET_ARCH_sparc 152 # include "interpreterRT_sparc.hpp" 153 #endif 154 #ifdef TARGET_ARCH_zero 155 # include "interpreterRT_zero.hpp" 156 #endif 157 #ifdef TARGET_ARCH_arm 158 # include "interpreterRT_arm.hpp" 159 #endif 160 #ifdef TARGET_ARCH_ppc 161 # include "interpreterRT_ppc.hpp" 162 #endif 163 164 165 // Interpreter's frequency counter overflow 166 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp); 167 168 // Interpreter profiling support 169 static jint bcp_to_di(Method* method, address cur_bcp); 170 static void profile_method(JavaThread* thread); 171 static void update_mdp_for_ret(JavaThread* thread, int bci); 172 #ifdef ASSERT 173 static void verify_mdp(Method* method, address bcp, address mdp); 174 #endif // ASSERT 175 static MethodCounters* build_method_counters(JavaThread* thread, Method* m); 176 }; 177 178 179 class SignatureHandlerLibrary: public AllStatic { 180 public: 181 enum { buffer_size = 1*K }; // the size of the temporary code buffer 182 enum { blob_size = 32*K }; // the size of a handler code blob. 183 184 private: 185 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers 186 static address _handler; // next available address within _handler_blob; 187 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection 188 static GrowableArray<address>* _handlers; // the corresponding handlers 189 static address _buffer; // the temporary code buffer 190 191 static address set_handler_blob(); 192 static void initialize(); 193 static address set_handler(CodeBuffer* buffer); 194 static void pd_set_handler(address handler); 195 196 public: 197 static void add(methodHandle method); 198 }; 199 200 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP