1 /* 2 * Copyright (c) 1997, 2015, 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 #include "precompiled.hpp" 26 #include "interpreter/bytecodeInterpreter.hpp" 27 #include "interpreter/cppInterpreterGenerator.hpp" 28 #include "interpreter/interpreter.hpp" 29 #include "interpreter/interpreterRuntime.hpp" 30 31 #ifdef CC_INTERP 32 33 #ifdef ZERO 34 # include "entry_zero.hpp" 35 #else 36 #error "Only Zero CppInterpreter is supported" 37 #endif 38 39 void CppInterpreter::initialize() { 40 if (_code != NULL) return; 41 AbstractInterpreter::initialize(); 42 43 // generate interpreter 44 { ResourceMark rm; 45 TraceTime timer("Interpreter generation", TraceStartupTime); 46 int code_size = InterpreterCodeSize; 47 NOT_PRODUCT(code_size *= 4;) // debug uses extra interpreter code space 48 _code = new StubQueue(new InterpreterCodeletInterface, code_size, NULL, 49 "Interpreter"); 50 CppInterpreterGenerator g(_code); 51 if (PrintInterpreter) print(); 52 } 53 54 55 // Allow c++ interpreter to do one initialization now that switches are set, etc. 56 BytecodeInterpreter start_msg(BytecodeInterpreter::initialize); 57 if (JvmtiExport::can_post_interpreter_events()) 58 BytecodeInterpreter::runWithChecks(&start_msg); 59 else 60 BytecodeInterpreter::run(&start_msg); 61 } 62 63 64 void CppInterpreter::invoke_method(Method* method, address entry_point, TRAPS) { 65 ((ZeroEntry *) entry_point)->invoke(method, THREAD); 66 } 67 68 void CppInterpreter::invoke_osr(Method* method, 69 address entry_point, 70 address osr_buf, 71 TRAPS) { 72 ((ZeroEntry *) entry_point)->invoke_osr(method, osr_buf, THREAD); 73 } 74 75 76 CppInterpreterGenerator::CppInterpreterGenerator(StubQueue* _code): AbstractInterpreterGenerator(_code) { 77 generate_all(); 78 } 79 80 static const BasicType types[Interpreter::number_of_result_handlers] = { 81 T_BOOLEAN, 82 T_CHAR , 83 T_BYTE , 84 T_SHORT , 85 T_INT , 86 T_LONG , 87 T_VOID , 88 T_FLOAT , 89 T_DOUBLE , 90 T_OBJECT 91 }; 92 93 void CppInterpreterGenerator::generate_all() { 94 AbstractInterpreterGenerator::generate_all(); 95 96 97 #define method_entry(kind) Interpreter::_entry_table[Interpreter::kind] = generate_method_entry(Interpreter::kind) 98 99 { CodeletMark cm(_masm, "(kind = frame_manager)"); 100 // all non-native method kinds 101 method_entry(zerolocals); 102 method_entry(zerolocals_synchronized); 103 method_entry(empty); 104 method_entry(accessor); 105 method_entry(abstract); 106 method_entry(java_lang_math_sin ); 107 method_entry(java_lang_math_cos ); 108 method_entry(java_lang_math_tan ); 109 method_entry(java_lang_math_abs ); 110 method_entry(java_lang_math_sqrt ); 111 method_entry(java_lang_math_log ); 112 method_entry(java_lang_math_log10 ); 113 method_entry(java_lang_math_pow ); 114 method_entry(java_lang_math_exp ); 115 method_entry(java_lang_ref_reference_get); 116 117 initialize_method_handle_entries(); 118 119 Interpreter::_native_entry_begin = Interpreter::code()->code_end(); 120 method_entry(native); 121 method_entry(native_synchronized); 122 Interpreter::_native_entry_end = Interpreter::code()->code_end(); 123 } 124 125 126 #undef method_entry 127 } 128 129 InterpreterCodelet* CppInterpreter::codelet_containing(address pc) { 130 // FIXME: I'm pretty sure _code is null and this is never called, which is why it's copied. 131 return (InterpreterCodelet*)_code->stub_containing(pc); 132 } 133 134 // Generate method entries 135 address CppInterpreterGenerator::generate_method_entry( 136 AbstractInterpreter::MethodKind kind) { 137 // determine code generation flags 138 bool native = false; 139 bool synchronized = false; 140 address entry_point = NULL; 141 142 switch (kind) { 143 case Interpreter::zerolocals : break; 144 case Interpreter::zerolocals_synchronized: synchronized = true; break; 145 case Interpreter::native : native = true; break; 146 case Interpreter::native_synchronized : native = true; synchronized = true; break; 147 case Interpreter::empty : entry_point = generate_empty_entry(); break; 148 case Interpreter::accessor : entry_point = generate_accessor_entry(); break; 149 case Interpreter::abstract : entry_point = generate_abstract_entry(); break; 150 151 case Interpreter::java_lang_math_sin : // fall thru 152 case Interpreter::java_lang_math_cos : // fall thru 153 case Interpreter::java_lang_math_tan : // fall thru 154 case Interpreter::java_lang_math_abs : // fall thru 155 case Interpreter::java_lang_math_log : // fall thru 156 case Interpreter::java_lang_math_log10 : // fall thru 157 case Interpreter::java_lang_math_sqrt : // fall thru 158 case Interpreter::java_lang_math_pow : // fall thru 159 case Interpreter::java_lang_math_exp : entry_point = generate_math_entry(kind); break; 160 case Interpreter::java_lang_ref_reference_get 161 : entry_point = generate_Reference_get_entry(); break; 162 default: 163 fatal("unexpected method kind: %d", kind); 164 break; 165 } 166 167 if (entry_point) { 168 return entry_point; 169 } 170 171 // We expect the normal and native entry points to be generated first so we can reuse them. 172 if (native) { 173 entry_point = Interpreter::entry_for_kind(synchronized ? Interpreter::native_synchronized : Interpreter::native); 174 if (entry_point == NULL) { 175 entry_point = generate_native_entry(synchronized); 176 } 177 } else { 178 entry_point = Interpreter::entry_for_kind(synchronized ? Interpreter::zerolocals_synchronized : Interpreter::zerolocals); 179 if (entry_point == NULL) { 180 entry_point = generate_normal_entry(synchronized); 181 } 182 } 183 184 return entry_point; 185 } 186 #endif // CC_INTERP