Mercurial > hg > truffle
view src/os/solaris/vm/globals_solaris.hpp @ 3293:1f4413413144
7039089: G1: changeset for 7037276 broke heap verification, and related cleanups
Summary: In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap.
Reviewed-by: iveresov, jmasa, tonyp
author | ysr |
---|---|
date | Tue, 26 Apr 2011 21:17:24 -0700 |
parents | f95d63e2154a |
children | dec841e0c9aa |
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/* * Copyright (c) 2005, 2010, 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 OS_SOLARIS_VM_GLOBALS_SOLARIS_HPP #define OS_SOLARIS_VM_GLOBALS_SOLARIS_HPP // // Defines Solaris specific flags. They are not available on other platforms. // #define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct) \ \ product(bool, UseISM, false, \ "Use Intimate Shared Memory (Solaris Only)") \ \ product(bool, UsePermISM, false, \ "Obsolete flag for compatibility (same as UseISM)") \ \ product(bool, UseMPSS, true, \ "Use Multiple Page Size Support (Solaris 9 Only)") \ \ product(bool, UseExtendedFileIO, true, \ "Enable workaround for limitations of stdio FILE structure") // // Defines Solaris-specific default values. The flags are available on all // platforms, but they may have different default values on other platforms. // define_pd_global(bool, UseLargePages, true); define_pd_global(bool, UseLargePagesIndividualAllocation, false); define_pd_global(bool, UseOSErrorReporting, false); define_pd_global(bool, UseThreadPriorities, false); #endif // OS_SOLARIS_VM_GLOBALS_SOLARIS_HPP