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/******************************************************************************
* Copyright (c) 2004, 2008 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#include <unistd.h>
#define HEAP_SIZE 0x200000
static char heap[HEAP_SIZE];
static char *actptr;
void *sbrk(int increment)
{
char *oldptr;
/* Called for the first time? Then init the actual pointer */
if (!actptr) {
actptr = heap;
}
if (actptr + increment > heap + HEAP_SIZE) {
/* Out of memory */
return (void *)-1;
}
oldptr = actptr;
actptr += increment;
return oldptr;
}
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