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comparison: src/share/vm/interpreter/bytecodeTracer.hpp
src/share/vm/interpreter/bytecodeTracer.hpp
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| 1 /* | |
| 2 * Copyright (c) 1997, 2010, 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_BYTECODETRACER_HPP | |
| 26 #define SHARE_VM_INTERPRETER_BYTECODETRACER_HPP | |
| 27 | |
| 28 #include "memory/allocation.hpp" | |
| 29 | |
| 30 // The BytecodeTracer is a helper class used by the interpreter for run-time | |
| 31 // bytecode tracing. If bytecode tracing is turned on, trace() will be called | |
| 32 // for each bytecode. | |
| 33 // | |
| 34 // By specialising the BytecodeClosure, all kinds of bytecode traces can | |
| 35 // be done. | |
| 36 | |
| 37 #ifndef PRODUCT | |
| 38 // class BytecodeTracer is only used by TraceBytecodes option | |
| 39 | |
| 40 class BytecodeClosure; | |
| 41 class BytecodeTracer: AllStatic { | |
| 42 private: | |
| 43 static BytecodeClosure* _closure; | |
| 44 | |
| 45 public: | |
| 46 static BytecodeClosure* std_closure(); // a printing closure | |
| 47 static BytecodeClosure* closure() { return _closure; } | |
| 48 static void set_closure(BytecodeClosure* closure) { _closure = closure; } | |
| 49 | |
| 50 static void trace(methodHandle method, address bcp, uintptr_t tos, uintptr_t tos2, outputStream* st = tty); | |
| 51 static void trace(methodHandle method, address bcp, outputStream* st = tty); | |
| 52 }; | |
| 53 | |
| 54 | |
| 55 // For each bytecode, a BytecodeClosure's trace() routine will be called. | |
| 56 | |
| 57 class BytecodeClosure { | |
| 58 public: | |
| 59 virtual void trace(methodHandle method, address bcp, uintptr_t tos, uintptr_t tos2, outputStream* st) = 0; | |
| 60 virtual void trace(methodHandle method, address bcp, outputStream* st) = 0; | |
| 61 }; | |
| 62 | |
| 63 #endif // !PRODUCT | |
| 64 | |
| 65 #endif // SHARE_VM_INTERPRETER_BYTECODETRACER_HPP |
