Mercurial > hg > graal-compiler
view src/share/vm/oops/oopsHierarchy.cpp @ 477:24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
Summary: Make reguard_stack change access to RW, not execute and use os::protect_memory with the new parameter when change needed to X.
Reviewed-by: acorn, jcoomes
author | coleenp |
---|---|
date | Wed, 10 Dec 2008 15:14:29 -0800 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2005-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ # include "incls/_precompiled.incl" # include "incls/_oopsHierarchy.cpp.incl" #ifdef CHECK_UNHANDLED_OOPS void oop::register_oop() { assert (CheckUnhandledOops, "should only call when CheckUnhandledOops"); if (!Universe::is_fully_initialized()) return; // This gets expensive, which is why checking unhandled oops is on a switch. Thread* t = ThreadLocalStorage::thread(); if (t != NULL && t->is_Java_thread()) { frame fr = os::current_frame(); // This points to the oop creator, I guess current frame points to caller assert (fr.pc(), "should point to a vm frame"); t->unhandled_oops()->register_unhandled_oop(this, fr.pc()); } } void oop::unregister_oop() { assert (CheckUnhandledOops, "should only call when CheckUnhandledOops"); if (!Universe::is_fully_initialized()) return; // This gets expensive, which is why checking unhandled oops is on a switch. Thread* t = ThreadLocalStorage::thread(); if (t != NULL && t->is_Java_thread()) { t->unhandled_oops()->unregister_unhandled_oop(this); } } #endif // CHECK_UNHANDLED_OOPS