Mercurial > hg > truffle
annotate src/share/vm/interpreter/cppInterpreter.hpp @ 1721:413ad0331a0c
6977924: Changes for 6975078 produce build error with certain gcc versions
Summary: The changes introduced for 6975078 assign badHeapOopVal to the _allocation field in the ResourceObj class. In 32 bit linux builds with certain versions of gcc this assignment will be flagged as an error while compiling allocation.cpp. In 32 bit builds the constant value badHeapOopVal (which is cast to an intptr_t) is negative. The _allocation field is typed as an unsigned intptr_t and gcc catches this as an error.
Reviewed-by: jcoomes, ysr, phh
| author | johnc |
|---|---|
| date | Wed, 18 Aug 2010 10:59:06 -0700 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #ifdef CC_INTERP | |
| 26 | |
| 605 | 27 // This file contains the platform-independent parts |
| 0 | 28 // of the c++ interpreter |
| 29 | |
| 30 class CppInterpreter: public AbstractInterpreter { | |
| 31 friend class VMStructs; | |
| 32 friend class Interpreter; // contains() | |
| 33 friend class InterpreterGenerator; // result handlers | |
| 34 friend class CppInterpreterGenerator; // result handlers | |
| 35 public: | |
| 36 | |
| 37 | |
| 38 protected: | |
| 39 | |
| 40 // tosca result -> stack result | |
| 41 static address _tosca_to_stack[number_of_result_handlers]; // converts tosca to C++ interpreter stack result | |
| 42 // stack result -> stack result | |
| 43 static address _stack_to_stack[number_of_result_handlers]; // pass result between C++ interpreter calls | |
| 44 // stack result -> native abi result | |
| 45 static address _stack_to_native_abi[number_of_result_handlers]; // converts C++ interpreter results to native abi | |
| 46 | |
| 47 // this is to allow frame and only frame to use contains(). | |
| 48 friend class frame; | |
| 49 | |
| 50 public: | |
| 51 // Initialization/debugging | |
| 52 static void initialize(); | |
| 53 // this only returns whether a pc is within generated code for the interpreter. | |
| 54 | |
| 55 // This is a moderately dubious interface for the c++ interpreter. Only | |
| 56 // frame code and debug.cpp should be using it. | |
| 57 static bool contains(address pc); | |
| 58 | |
| 59 public: | |
| 60 | |
| 61 | |
| 62 // No displatch table to switch so no need for these to do anything special | |
| 63 static void notice_safepoints() {} | |
| 64 static void ignore_safepoints() {} | |
| 65 | |
| 66 static address native_result_to_tosca() { return (address)_native_abi_to_tosca; } // aka result handler | |
| 67 static address tosca_result_to_stack() { return (address)_tosca_to_stack; } | |
| 68 static address stack_result_to_stack() { return (address)_stack_to_stack; } | |
| 69 static address stack_result_to_native() { return (address)_stack_to_native_abi; } | |
| 70 | |
| 71 static address native_result_to_tosca(int index) { return _native_abi_to_tosca[index]; } // aka result handler | |
| 72 static address tosca_result_to_stack(int index) { return _tosca_to_stack[index]; } | |
| 73 static address stack_result_to_stack(int index) { return _stack_to_stack[index]; } | |
| 74 static address stack_result_to_native(int index) { return _stack_to_native_abi[index]; } | |
| 75 | |
| 76 static address return_entry (TosState state, int length); | |
| 77 static address deopt_entry (TosState state, int length); | |
| 78 | |
| 79 #include "incls/_cppInterpreter_pd.hpp.incl" | |
| 80 | |
| 81 }; | |
| 82 | |
| 83 #endif // CC_INTERP |