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 "asm/macroAssembler.hpp" 27 #include "asm/macroAssembler.inline.hpp" 28 #include "compiler/disassembler.hpp" 29 #include "interpreter/bytecodeHistogram.hpp" 30 #include "interpreter/bytecodeInterpreter.hpp" 31 #include "interpreter/interpreter.hpp" 32 #include "interpreter/interpreterRuntime.hpp" 33 #include "interpreter/interp_masm.hpp" 34 #include "interpreter/templateTable.hpp" 35 #include "memory/allocation.inline.hpp" 36 #include "memory/resourceArea.hpp" 37 #include "oops/arrayOop.hpp" 38 #include "oops/methodData.hpp" 39 #include "oops/method.hpp" 40 #include "oops/oop.inline.hpp" 41 #include "prims/forte.hpp" 42 #include "prims/jvmtiExport.hpp" 43 #include "prims/methodHandles.hpp" 44 #include "runtime/handles.inline.hpp" 45 #include "runtime/sharedRuntime.hpp" 46 #include "runtime/stubRoutines.hpp" 47 #include "runtime/timer.hpp" 48 49 # define __ _masm-> 50 51 52 //------------------------------------------------------------------------------------------------------------------------ 53 // Implementation of InterpreterCodelet 54 55 void InterpreterCodelet::initialize(const char* description, Bytecodes::Code bytecode) { 56 _description = description; 57 _bytecode = bytecode; 58 } 59 60 61 void InterpreterCodelet::verify() { 62 } 63 64 65 void InterpreterCodelet::print_on(outputStream* st) const { 66 ttyLocker ttyl; 67 68 if (PrintInterpreter) { 69 st->cr(); 70 st->print_cr("----------------------------------------------------------------------"); 71 } 72 73 if (description() != NULL) st->print("%s ", description()); 74 if (bytecode() >= 0 ) st->print("%d %s ", bytecode(), Bytecodes::name(bytecode())); 75 st->print_cr("[" INTPTR_FORMAT ", " INTPTR_FORMAT "] %d bytes", 76 p2i(code_begin()), p2i(code_end()), code_size()); 77 78 if (PrintInterpreter) { 79 st->cr(); 80 Disassembler::decode(code_begin(), code_end(), st, DEBUG_ONLY(_strings) NOT_DEBUG(CodeStrings())); 81 } 82 } 83 84 CodeletMark::CodeletMark(InterpreterMacroAssembler*& masm, 85 const char* description, 86 Bytecodes::Code bytecode) : 87 _clet((InterpreterCodelet*)AbstractInterpreter::code()->request(codelet_size())), 88 _cb(_clet->code_begin(), _clet->code_size()) { 89 // Request all space (add some slack for Codelet data). 90 assert(_clet != NULL, "we checked not enough space already"); 91 92 // Initialize Codelet attributes. 93 _clet->initialize(description, bytecode); 94 // Create assembler for code generation. 95 masm = new InterpreterMacroAssembler(&_cb); 96 _masm = &masm; 97 } 98 99 CodeletMark::~CodeletMark() { 100 // Align so printing shows nop's instead of random code at the end (Codelets are aligned). 101 (*_masm)->align(wordSize); 102 // Make sure all code is in code buffer. 103 (*_masm)->flush(); 104 105 // Commit Codelet. 106 int committed_code_size = (*_masm)->code()->pure_insts_size(); 107 if (committed_code_size) { 108 AbstractInterpreter::code()->commit(committed_code_size, (*_masm)->code()->strings()); 109 } 110 // Make sure nobody can use _masm outside a CodeletMark lifespan. 111 *_masm = NULL; 112 } 113 114 115 void interpreter_init() { 116 Interpreter::initialize(); 117 #ifndef PRODUCT 118 if (TraceBytecodes) BytecodeTracer::set_closure(BytecodeTracer::std_closure()); 119 #endif // PRODUCT 120 // need to hit every safepoint in order to call zapping routine 121 // register the interpreter 122 Forte::register_stub( 123 "Interpreter", 124 AbstractInterpreter::code()->code_start(), 125 AbstractInterpreter::code()->code_end() 126 ); 127 128 // notify JVMTI profiler 129 if (JvmtiExport::should_post_dynamic_code_generated()) { 130 JvmtiExport::post_dynamic_code_generated("Interpreter", 131 AbstractInterpreter::code()->code_start(), 132 AbstractInterpreter::code()->code_end()); 133 } 134 }