| 1 | /* $Id: memchr_alias.c 4071 2007-08-07 17:07:59Z vboxsync $ */
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| 2 | /** @file
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| 3 | * innotek Portable Runtime - No-CRT memchr() alias for gcc.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 innotek GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 |
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| 19 | /*******************************************************************************
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| 20 | * Header Files *
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| 21 | *******************************************************************************/
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| 22 | #include <iprt/nocrt/string.h>
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| 23 | #undef memchr
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| 24 |
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| 25 | #if defined(RT_OS_DARWIN) || defined(RT_OS_WINDOWS)
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| 26 | # ifndef __MINGW32__
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| 27 | # pragma weak memchr
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| 28 | # endif
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| 29 |
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| 30 | /* No alias support here (yet in the ming case). */
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| 31 | extern void *(memchr)(const void *pv, int ch, size_t cb)
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| 32 | {
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| 33 | return RT_NOCRT(memchr)(pv, ch, cb);
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| 34 | }
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| 35 |
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| 36 | #elif __GNUC__ >= 4
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| 37 | /* create a weak alias. */
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| 38 | __asm__(".weak memchr\t\n"
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| 39 | " .set memchr," RT_NOCRT_STR(memchr) "\t\n");
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| 40 | #else
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| 41 | /* create a weak alias. */
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| 42 | extern __typeof(RT_NOCRT(memchr)) memchr __attribute__((weak, alias(RT_NOCRT_STR(memchr))));
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| 43 | #endif
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| 44 |
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