31 lines
		
	
	
		
			927 B
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			927 B
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * sim-sbrk.c -- PowerPC sbrk support when running under the simulator.
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|  *
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|  * Copyright (c) 1995 Cygnus Support
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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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| 
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| extern char _end[];
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| static char *curbrk = _end;
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| 
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| char *
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| sbrk (incr)
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|      int incr;
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| {
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|   char *oldbrk = curbrk;
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|   curbrk += incr;
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|   if (brk (curbrk) == -1)
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|     return (char *) -1;
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| 
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|   return oldbrk;
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| }
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