Mercurial > hg > graal-compiler
view src/share/vm/utilities/growableArray.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 | 83ef1482304c |
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/* * Copyright 1997-2005 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/_growableArray.cpp.incl" #ifdef ASSERT void GenericGrowableArray::set_nesting() { if (on_stack()) { _nesting = Thread::current()->resource_area()->nesting(); } } void GenericGrowableArray::check_nesting() { // Check for insidious allocation bug: if a GrowableArray overflows, the // grown array must be allocated under the same ResourceMark as the original. // Otherwise, the _data array will be deallocated too early. if (on_stack() && _nesting != Thread::current()->resource_area()->nesting()) { fatal("allocation bug: GrowableArray could grow within nested ResourceMark"); } } #endif void* GenericGrowableArray::raw_allocate(int elementSize) { if (on_stack()) { return (void*)resource_allocate_bytes(elementSize * _max); } else if (on_C_heap()) { return (void*)AllocateHeap(elementSize * _max, "GrET in " __FILE__); } else { return _arena->Amalloc(elementSize * _max); } }