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comparison src/share/vm/interpreter/templateInterpreter.cpp @ 2142:8012aa3ccede

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4926272: methodOopDesc::method_from_bcp is unsafe Reviewed-by: coleenp, jrose, kvn, dcubed
author never
date Thu, 13 Jan 2011 22:15:41 -0800
parents f95d63e2154a
children e1162778c1c8
comparison
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2130:34d64ad817f4 2142:8012aa3ccede
1 /* 1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
590 // the bytecode. 590 // the bytecode.
591 // Note: Bytecodes::_athrow (C1 only) and Bytecodes::_return are the special cases 591 // Note: Bytecodes::_athrow (C1 only) and Bytecodes::_return are the special cases
592 // that do not return "Interpreter::deopt_entry(vtos, 0)" 592 // that do not return "Interpreter::deopt_entry(vtos, 0)"
593 address TemplateInterpreter::deopt_reexecute_entry(methodOop method, address bcp) { 593 address TemplateInterpreter::deopt_reexecute_entry(methodOop method, address bcp) {
594 assert(method->contains(bcp), "just checkin'"); 594 assert(method->contains(bcp), "just checkin'");
595 Bytecodes::Code code = Bytecodes::java_code_at(bcp); 595 Bytecodes::Code code = Bytecodes::java_code_at(method, bcp);
596 if (code == Bytecodes::_return) { 596 if (code == Bytecodes::_return) {
597 // This is used for deopt during registration of finalizers 597 // This is used for deopt during registration of finalizers
598 // during Object.<init>. We simply need to resume execution at 598 // during Object.<init>. We simply need to resume execution at
599 // the standard return vtos bytecode to pop the frame normally. 599 // the standard return vtos bytecode to pop the frame normally.
600 // reexecuting the real bytecode would cause double registration 600 // reexecuting the real bytecode would cause double registration