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33 lines
1.0 KiB
C
33 lines
1.0 KiB
C
/*
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* Support file for nvptx in newlib.
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* Copyright (c) 2016-2018 Mentor Graphics.
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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#include <stdlib.h>
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void *
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realloc (void *old_ptr, size_t new_size)
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{
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void *new_ptr = malloc (new_size);
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if (old_ptr && new_ptr)
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{
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size_t old_size = *(size_t *)((long long *)old_ptr - 1);
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size_t copy_size = old_size > new_size ? new_size : old_size;
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__builtin_memcpy (new_ptr, old_ptr, copy_size);
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free (old_ptr);
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}
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return new_ptr;
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}
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