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