Mercurial > hg > truffle
view src/cpu/zero/vm/stack_zero.inline.hpp @ 1423:760213a60e8b
* rewrite of the code installation
* partial support for safepoints
* macro-based CiTargetMethod interface
* code stub support
author | Lukas Stadler <lukas.stadler@oracle.com> |
---|---|
date | Mon, 16 Aug 2010 18:59:36 -0700 |
parents | aa9c266de52a |
children | 348346af6676 |
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/* * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. * Copyright 2010 Red Hat, Inc. * 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. * */ // This function should match SharkStack::CreateStackOverflowCheck inline void ZeroStack::overflow_check(int required_words, TRAPS) { JavaThread *thread = (JavaThread *) THREAD; // Check the Zero stack if (required_words > available_words()) { handle_overflow(THREAD); return; } // Check the ABI stack address stack_top = thread->stack_base() - thread->stack_size(); int free_stack = ((address) &stack_top) - stack_top; if (free_stack < shadow_pages_size()) { handle_overflow(THREAD); return; } }