1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/interpreter/bytecodeTracer.hpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,58 @@
1.4 +/*
1.5 + * Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +// The BytecodeTracer is a helper class used by the interpreter for run-time
1.29 +// bytecode tracing. If bytecode tracing is turned on, trace() will be called
1.30 +// for each bytecode.
1.31 +//
1.32 +// By specialising the BytecodeClosure, all kinds of bytecode traces can
1.33 +// be done.
1.34 +
1.35 +#ifndef PRODUCT
1.36 +// class BytecodeTracer is only used by TraceBytecodes option
1.37 +
1.38 +class BytecodeClosure;
1.39 +class BytecodeTracer: AllStatic {
1.40 + private:
1.41 + static BytecodeClosure* _closure;
1.42 +
1.43 + public:
1.44 + static BytecodeClosure* std_closure(); // a printing closure
1.45 + static BytecodeClosure* closure() { return _closure; }
1.46 + static void set_closure(BytecodeClosure* closure) { _closure = closure; }
1.47 +
1.48 + static void trace(methodHandle method, address bcp, uintptr_t tos, uintptr_t tos2, outputStream* st = tty);
1.49 + static void trace(methodHandle method, address bcp, outputStream* st = tty);
1.50 +};
1.51 +
1.52 +
1.53 +// For each bytecode, a BytecodeClosure's trace() routine will be called.
1.54 +
1.55 +class BytecodeClosure {
1.56 + public:
1.57 + virtual void trace(methodHandle method, address bcp, uintptr_t tos, uintptr_t tos2, outputStream* st) = 0;
1.58 + virtual void trace(methodHandle method, address bcp, outputStream* st) = 0;
1.59 +};
1.60 +
1.61 +#endif // !PRODUCT
