Mercurial > hg > graal-jvmci-8
view src/share/vm/classfile/classFileError.cpp @ 12301:2c022e432e10
8024974: Incorrect use of GC_locker::is_active()
Summary: SymbolTable and StringTable can make calls to GC_locker::is_active() outside a safepoint. This isn't safe because the GC_locker active state (lock count) is only updated at a safepoint and only remains valid as long as _needs_gc is true. However, outside a safepoint_needs_gc can change to false at any time, which makes it impossible to do a correct call to is_active() in that context. In this case these calls can just be removed since the input argument to basic_add() should never be on the heap and so there's no need to check the GC_locker state. This change also adjusts the assert() in is_active() to makes sure all calls to this function are always done under a safepoint.
Reviewed-by: brutisso, dcubed
Contributed-by: per.liden@oracle.com
author | stefank |
---|---|
date | Fri, 20 Sep 2013 10:53:28 +0200 |
parents | 1d1603768966 |
children | 78bbf4d43a14 |
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/* * Copyright (c) 2005, 2011, 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. * */ #include "precompiled.hpp" #include "classfile/classFileParser.hpp" #include "classfile/stackMapTable.hpp" #include "classfile/verifier.hpp" // Keep these in a separate file to prevent inlining void ClassFileParser::classfile_parse_error(const char* msg, TRAPS) { ResourceMark rm(THREAD); Exceptions::fthrow(THREAD_AND_LOCATION, vmSymbols::java_lang_ClassFormatError(), msg, _class_name->as_C_string()); } void ClassFileParser::classfile_parse_error(const char* msg, int index, TRAPS) { ResourceMark rm(THREAD); Exceptions::fthrow(THREAD_AND_LOCATION, vmSymbols::java_lang_ClassFormatError(), msg, index, _class_name->as_C_string()); } void ClassFileParser::classfile_parse_error(const char* msg, const char *name, TRAPS) { ResourceMark rm(THREAD); Exceptions::fthrow(THREAD_AND_LOCATION, vmSymbols::java_lang_ClassFormatError(), msg, name, _class_name->as_C_string()); } void ClassFileParser::classfile_parse_error(const char* msg, int index, const char *name, TRAPS) { ResourceMark rm(THREAD); Exceptions::fthrow(THREAD_AND_LOCATION, vmSymbols::java_lang_ClassFormatError(), msg, index, name, _class_name->as_C_string()); } void StackMapStream::stackmap_format_error(const char* msg, TRAPS) { ResourceMark rm(THREAD); Exceptions::fthrow( THREAD_AND_LOCATION, vmSymbols::java_lang_ClassFormatError(), "StackMapTable format error: %s", msg ); }