1 /* 2 * Copyright (c) 1997, 2011, 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/methodOop.hpp" 32 #include "runtime/frame.inline.hpp" 33 #include "runtime/signature.hpp" 34 #include "utilities/top.hpp" 35 #ifdef TARGET_OS_FAMILY_linux 36 # include "thread_linux.inline.hpp" 37 #endif 38 #ifdef TARGET_OS_FAMILY_solaris 39 # include "thread_solaris.inline.hpp" 40 #endif 41 #ifdef TARGET_OS_FAMILY_windows 42 # include "thread_windows.inline.hpp" 43 #endif 44 #ifdef TARGET_OS_FAMILY_bsd 45 # include "thread_bsd.inline.hpp" 46 #endif 47 48 // The InterpreterRuntime is called by the interpreter for everything 49 // that cannot/should not be dealt with in assembly and needs C support. 50 51 class InterpreterRuntime: AllStatic { 52 friend class BytecodeClosure; // for method and bcp 53 friend class PrintingClosure; // for method and bcp 54 55 private: 56 // Helper functions to access current interpreter state 57 static frame last_frame(JavaThread *thread) { return thread->last_frame(); } 58 static methodOop method(JavaThread *thread) { return last_frame(thread).interpreter_frame_method(); } 59 static address bcp(JavaThread *thread) { return last_frame(thread).interpreter_frame_bcp(); } 60 static int bci(JavaThread *thread) { return last_frame(thread).interpreter_frame_bci(); } 61 static void set_bcp_and_mdp(address bcp, JavaThread*thread); 62 static Bytecodes::Code code(JavaThread *thread) { 63 // pass method to avoid calling unsafe bcp_to_method (partial fix 4926272) 64 return Bytecodes::code_at(method(thread), bcp(thread)); 65 } 66 static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); } 67 static Bytecode bytecode(JavaThread *thread) { return Bytecode(method(thread), bcp(thread)); } 68 static int get_index_u1(JavaThread *thread, Bytecodes::Code bc) 69 { return bytecode(thread).get_index_u1(bc); } 70 static int get_index_u2(JavaThread *thread, Bytecodes::Code bc) 71 { return bytecode(thread).get_index_u2(bc); } 72 static int get_index_u2_cpcache(JavaThread *thread, Bytecodes::Code bc) 73 { return bytecode(thread).get_index_u2_cpcache(bc); } 74 static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; } 75 76 static ConstantPoolCacheEntry* cache_entry_at(JavaThread *thread, int i) { return method(thread)->constants()->cache()->entry_at(i); } 77 static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return cache_entry_at(thread, Bytes::get_native_u2(bcp(thread) + 1)); } 78 static void note_trap(JavaThread *thread, int reason, TRAPS); 79 80 // Inner work method for Interpreter's frequency counter overflow 81 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp); 82 83 public: 84 // Constants 85 static void ldc (JavaThread* thread, bool wide); 86 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode); 87 88 // Allocation 89 static void _new (JavaThread* thread, constantPoolOopDesc* pool, int index); 90 static void newarray (JavaThread* thread, BasicType type, jint size); 91 static void anewarray (JavaThread* thread, constantPoolOopDesc* pool, int index, jint size); 92 static void multianewarray(JavaThread* thread, jint* first_size_address); 93 static void register_finalizer(JavaThread* thread, oopDesc* obj); 94 95 // Quicken instance-of and check-cast bytecodes 96 static void quicken_io_cc(JavaThread* thread); 97 98 // Exceptions thrown by the interpreter 99 static void throw_AbstractMethodError(JavaThread* thread); 100 static void throw_IncompatibleClassChangeError(JavaThread* thread); 101 static void throw_StackOverflowError(JavaThread* thread); 102 static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index); 103 static void throw_ClassCastException(JavaThread* thread, oopDesc* obj); 104 static void create_exception(JavaThread* thread, char* name, char* message); 105 static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj); 106 static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception); 107 static void throw_pending_exception(JavaThread* thread); 108 109 // Statics & fields 110 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode); 111 112 // Synchronization 113 static void monitorenter(JavaThread* thread, BasicObjectLock* elem); 114 static void monitorexit (JavaThread* thread, BasicObjectLock* elem); 115 116 static void throw_illegal_monitor_state_exception(JavaThread* thread); 117 static void new_illegal_monitor_state_exception(JavaThread* thread); 118 119 // Calls 120 static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode); 121 static void resolve_invokedynamic(JavaThread* thread); 122 123 // Breakpoints 124 static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp); 125 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp); 126 static void set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code); 127 static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; } 128 129 // Safepoints 130 static void at_safepoint(JavaThread* thread); 131 132 // Debugger support 133 static void post_field_access(JavaThread *thread, oopDesc* obj, 134 ConstantPoolCacheEntry *cp_entry); 135 static void post_field_modification(JavaThread *thread, oopDesc* obj, 136 ConstantPoolCacheEntry *cp_entry, jvalue *value); 137 static void post_method_entry(JavaThread *thread); 138 static void post_method_exit (JavaThread *thread); 139 static int interpreter_contains(address pc); 140 141 // Native signature handlers 142 static void prepare_native_call(JavaThread* thread, methodOopDesc* method); 143 static address slow_signature_handler(JavaThread* thread, 144 methodOopDesc* method, 145 intptr_t* from, intptr_t* to); 146 147 #if defined(IA32) || defined(AMD64) || defined(ARM) 148 // Popframe support (only needed on x86, AMD64 and ARM) 149 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address); 150 #endif 151 152 // Platform dependent stuff 153 #ifdef TARGET_ARCH_x86 154 # include "interpreterRT_x86.hpp" 155 #endif 156 #ifdef TARGET_ARCH_sparc 157 # include "interpreterRT_sparc.hpp" 158 #endif 159 #ifdef TARGET_ARCH_zero 160 # include "interpreterRT_zero.hpp" 161 #endif 162 #ifdef TARGET_ARCH_arm 163 # include "interpreterRT_arm.hpp" 164 #endif 165 #ifdef TARGET_ARCH_ppc 166 # include "interpreterRT_ppc.hpp" 167 #endif 168 169 170 // Interpreter's frequency counter overflow 171 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp); 172 173 // Interpreter profiling support 174 static jint bcp_to_di(methodOopDesc* method, address cur_bcp); 175 static void profile_method(JavaThread* thread); 176 static void update_mdp_for_ret(JavaThread* thread, int bci); 177 #ifdef ASSERT 178 static void verify_mdp(methodOopDesc* method, address bcp, address mdp); 179 #endif // ASSERT 180 }; 181 182 183 class SignatureHandlerLibrary: public AllStatic { 184 public: 185 enum { buffer_size = 1*K }; // the size of the temporary code buffer 186 enum { blob_size = 32*K }; // the size of a handler code blob. 187 188 private: 189 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers 190 static address _handler; // next available address within _handler_blob; 191 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection 192 static GrowableArray<address>* _handlers; // the corresponding handlers 193 static address _buffer; // the temporary code buffer 194 195 static address set_handler_blob(); 196 static void initialize(); 197 static address set_handler(CodeBuffer* buffer); 198 static void pd_set_handler(address handler); 199 200 public: 201 static void add(methodHandle method); 202 }; 203 204 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP