src/share/vm/interpreter/bytecodeTracer.hpp

Tue, 24 Jul 2012 10:51:00 -0700

author
twisti
date
Tue, 24 Jul 2012 10:51:00 -0700
changeset 3969
1d7922586cf6
parent 2314
f95d63e2154a
child 6876
710a3c8b516e
permissions
-rw-r--r--

7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>

     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  */
    25 #ifndef SHARE_VM_INTERPRETER_BYTECODETRACER_HPP
    26 #define SHARE_VM_INTERPRETER_BYTECODETRACER_HPP
    28 #include "memory/allocation.hpp"
    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.
    37 #ifndef PRODUCT
    38 // class BytecodeTracer is only used by TraceBytecodes option
    40 class BytecodeClosure;
    41 class BytecodeTracer: AllStatic {
    42  private:
    43   static BytecodeClosure* _closure;
    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; }
    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 };
    55 // For each bytecode, a BytecodeClosure's trace() routine will be called.
    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 };
    63 #endif // !PRODUCT
    65 #endif // SHARE_VM_INTERPRETER_BYTECODETRACER_HPP

mercurial