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 static void throw_pending_exception(JavaThread* thread); 99 100 // Statics & fields 101 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode); 102 103 // Synchronization 104 static void monitorenter(JavaThread* thread, BasicObjectLock* elem); 105 static void monitorexit (JavaThread* thread, BasicObjectLock* elem); 106 107 static void throw_illegal_monitor_state_exception(JavaThread* thread); 108 static void new_illegal_monitor_state_exception(JavaThread* thread); 109 110 // Calls 111 static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode); 112 static void resolve_invokehandle (JavaThread* thread); 113 static void resolve_invokedynamic(JavaThread* thread); 114 115 // Breakpoints 116 static void _breakpoint(JavaThread* thread, Method* method, address bcp); 117 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, Method* method, address bcp); 118 static void set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code); 119 static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; } 120 121 // Safepoints 122 static void at_safepoint(JavaThread* thread); 123 124 // Debugger support 125 static void post_field_access(JavaThread *thread, oopDesc* obj, 126 ConstantPoolCacheEntry *cp_entry); 127 static void post_field_modification(JavaThread *thread, oopDesc* obj, 128 ConstantPoolCacheEntry *cp_entry, jvalue *value); 129 static void post_method_entry(JavaThread *thread); 130 static void post_method_exit (JavaThread *thread); 131 static int interpreter_contains(address pc); 132 133 // Native signature handlers 134 static void prepare_native_call(JavaThread* thread, Method* method); 135 static address slow_signature_handler(JavaThread* thread, 136 Method* method, 137 intptr_t* from, intptr_t* to); 138 139 #if defined(IA32) || defined(AMD64) || defined(ARM) 140 // Popframe support (only needed on x86, AMD64 and ARM) 141 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address); 142 #endif 143 144 // Platform dependent stuff 145 #ifdef TARGET_ARCH_x86 146 # include "interpreterRT_x86.hpp" 147 #endif 148 #ifdef TARGET_ARCH_sparc 149 # include "interpreterRT_sparc.hpp" 150 #endif 151 #ifdef TARGET_ARCH_zero 152 # include "interpreterRT_zero.hpp" 153 #endif 154 #ifdef TARGET_ARCH_arm 155 # include "interpreterRT_arm.hpp" 156 #endif 157 #ifdef TARGET_ARCH_ppc 158 # include "interpreterRT_ppc.hpp" 159 #endif 160 161 162 // Interpreter's frequency counter overflow 163 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp); 164 165 // Interpreter profiling support 166 static jint bcp_to_di(Method* method, address cur_bcp); 167 static void profile_method(JavaThread* thread); 168 static void update_mdp_for_ret(JavaThread* thread, int bci); 169 #ifdef ASSERT 170 static void verify_mdp(Method* method, address bcp, address mdp); 171 #endif // ASSERT 172 static MethodCounters* build_method_counters(JavaThread* thread, Method* m); 173 }; 174 175 176 class SignatureHandlerLibrary: public AllStatic { 177 public: 178 enum { buffer_size = 1*K }; // the size of the temporary code buffer 179 enum { blob_size = 32*K }; // the size of a handler code blob. 180 181 private: 182 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers 183 static address _handler; // next available address within _handler_blob; 184 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection 185 static GrowableArray<address>* _handlers; // the corresponding handlers 186 static address _buffer; // the temporary code buffer 187 188 static address set_handler_blob(); 189 static void initialize(); 190 static address set_handler(CodeBuffer* buffer); 191 static void pd_set_handler(address handler); 192 193 public: 194 static void add(methodHandle method); 195 }; 196 197 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP