Mercurial > hg > graal-jvmci-8
view src/share/vm/classfile/resolutionErrors.hpp @ 7588:f9eb431c3efe
8006005: Fix constant pool index validation and alignment trap for method parameter reflection
Summary: This patch addresses an alignment trap due to the storage format of method parameters data in constMethod. It also adds code to validate constant pool indexes for method parameters data.
Reviewed-by: jrose, dholmes
Contributed-by: eric.mccorkle@oracle.com
author | coleenp |
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date | Mon, 14 Jan 2013 11:01:39 -0500 |
parents | da91efe96a93 |
children |
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/* * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP #define SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP #include "oops/constantPool.hpp" #include "utilities/hashtable.hpp" class ResolutionErrorEntry; // ResolutionError objects are used to record errors encountered during // constant pool resolution (JVMS 5.4.3). class ResolutionErrorTable : public Hashtable<ConstantPool*, mtClass> { public: ResolutionErrorTable(int table_size); ResolutionErrorEntry* new_entry(int hash, ConstantPool* pool, int cp_index, Symbol* error); void free_entry(ResolutionErrorEntry *entry); ResolutionErrorEntry* bucket(int i) { return (ResolutionErrorEntry*)Hashtable<ConstantPool*, mtClass>::bucket(i); } ResolutionErrorEntry** bucket_addr(int i) { return (ResolutionErrorEntry**)Hashtable<ConstantPool*, mtClass>::bucket_addr(i); } void add_entry(int index, ResolutionErrorEntry* new_entry) { Hashtable<ConstantPool*, mtClass>::add_entry(index, (HashtableEntry<ConstantPool*, mtClass>*)new_entry); } void add_entry(int index, unsigned int hash, constantPoolHandle pool, int which, Symbol* error); // find error given the constant pool and constant pool index ResolutionErrorEntry* find_entry(int index, unsigned int hash, constantPoolHandle pool, int cp_index); unsigned int compute_hash(constantPoolHandle pool, int cp_index) { return (unsigned int) pool->identity_hash() + cp_index; } // purges unloaded entries from the table void purge_resolution_errors(); // RedefineClasses support - remove obsolete constant pool entry void delete_entry(ConstantPool* c); }; class ResolutionErrorEntry : public HashtableEntry<ConstantPool*, mtClass> { private: int _cp_index; Symbol* _error; public: ConstantPool* pool() const { return (ConstantPool*)literal(); } ConstantPool** pool_addr() { return (ConstantPool**)literal_addr(); } int cp_index() const { return _cp_index; } void set_cp_index(int cp_index) { _cp_index = cp_index; } Symbol* error() const { return _error; } void set_error(Symbol* e); ResolutionErrorEntry* next() const { return (ResolutionErrorEntry*)HashtableEntry<ConstantPool*, mtClass>::next(); } ResolutionErrorEntry** next_addr() { return (ResolutionErrorEntry**)HashtableEntry<ConstantPool*, mtClass>::next_addr(); } }; #endif // SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP