1 | /** @file
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2 | * innotek Portable Runtime - alloca().
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3 | */
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4 |
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5 | /*
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6 | * Copyright (C) 2006-2007 innotek GmbH
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7 | *
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8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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9 | * available from http://www.virtualbox.org. This file is free software;
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10 | * you can redistribute it and/or modify it under the terms of the GNU
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11 | * General Public License as published by the Free Software Foundation,
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12 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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13 | * distribution. VirtualBox OSE is distributed in the hope that it will
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14 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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15 | *
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16 | * If you received this file as part of a commercial VirtualBox
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17 | * distribution, then only the terms of your commercial VirtualBox
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18 | * license agreement apply instead of the previous paragraph.
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19 | */
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20 |
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21 | #ifndef __iprt_alloca_h__
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22 | #define __iprt_alloca_h__
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23 |
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24 |
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25 | /*
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26 | * If there are more difficult platforms out there, we'll do OS
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27 | * specific #ifdefs. But for now we'll just include the headers
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28 | * which normally contains the alloca() prototype.
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29 | * When we're in kernel territory it starts getting a bit more
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30 | * interesting of course...
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31 | */
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32 | #if defined(IN_RING0) && defined(__LINUX__)
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33 | /* ASSUMES GNU C */
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34 | # define alloca(cb) __builtin_alloca(cb)
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35 | #else
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36 | # include <stdlib.h>
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37 | # if !defined(__DARWIN__) && !defined(__FREEBSD__)
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38 | # include <malloc.h>
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39 | # endif
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40 | # ifdef __SOLARIS__
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41 | # include <alloca.h>
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42 | # endif
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43 | #endif
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44 |
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45 | #endif
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46 |
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