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Annotation of qemu/roms/SLOF/lib/libc/stdlib/realloc.c, revision 1.1

1.1     ! root        1: /******************************************************************************
        !             2:  * Copyright (c) 2004, 2008 IBM Corporation
        !             3:  * All rights reserved.
        !             4:  * This program and the accompanying materials
        !             5:  * are made available under the terms of the BSD License
        !             6:  * which accompanies this distribution, and is available at
        !             7:  * http://www.opensource.org/licenses/bsd-license.php
        !             8:  *
        !             9:  * Contributors:
        !            10:  *     IBM Corporation - initial implementation
        !            11:  *****************************************************************************/
        !            12: 
        !            13: 
        !            14: #include "stdlib.h"
        !            15: #include "string.h"
        !            16: #include "malloc_defs.h"
        !            17: 
        !            18: void *
        !            19: realloc(void *ptr, size_t size)
        !            20: {
        !            21:        struct chunk *header;
        !            22:        char *newptr, *start;
        !            23: 
        !            24:        header = (struct chunk *) ptr;
        !            25:        header--;
        !            26: 
        !            27:        if (size <= header->length)
        !            28:                return ptr;
        !            29: 
        !            30:        newptr = (char *) malloc(size);
        !            31:        if (newptr == NULL)
        !            32:                return 0;
        !            33: 
        !            34:        start = newptr;
        !            35:        memcpy((void *) newptr, (const void *) ptr, header->length);
        !            36: 
        !            37:        header->inuse = 0;
        !            38: 
        !            39:        return start;
        !            40: }

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