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comparison src/cpu/zero/vm/stack_zero.inline.hpp @ 1383:aa9c266de52a

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6944473: 6941224 misses new files Summary: Two new files are missing in the push for 6941224. Reviewed-by: twisti Contributed-by: Gary Benson <gbenson@redhat.com>
author twisti
date Fri, 16 Apr 2010 05:05:53 -0700
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children 348346af6676
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1382:d32d2a2f62cd 1383:aa9c266de52a
1 /*
2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
3 * Copyright 2010 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 *
24 */
25
26 // This function should match SharkStack::CreateStackOverflowCheck
27 inline void ZeroStack::overflow_check(int required_words, TRAPS) {
28 JavaThread *thread = (JavaThread *) THREAD;
29
30 // Check the Zero stack
31 if (required_words > available_words()) {
32 handle_overflow(THREAD);
33 return;
34 }
35
36 // Check the ABI stack
37 address stack_top = thread->stack_base() - thread->stack_size();
38 int free_stack = ((address) &stack_top) - stack_top;
39 if (free_stack < shadow_pages_size()) {
40 handle_overflow(THREAD);
41 return;
42 }
43 }