42 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			42 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			C
		
	
	
	
| /* open.c -- Implementation of the low-level open() routine
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|  *
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|  * Copyright (c) 2004 National Semiconductor Corporation
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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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| #include <sys/syscall.h>
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| #include <stdarg.h>
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| 
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| int open_aux (char *, int, int);
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| 
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| /* The prototype in <fcntl.h> for open() uses ..., meaning function 
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|  * parameters reside on stack, but the debugger expects the parameters 
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|  * to reside in registers, thus we call an auxiliary function with 
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|  * bounded number of parameters.
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|  */
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| int _open (char *path, int flags, ...)
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| {
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|   int mode;
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|   va_list ap;
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|   
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|   va_start(ap, flags);
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|   mode = va_arg(ap, int);
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|   open_aux (path, flags, mode);
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|   va_end(ap);
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| }
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| 
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| int open_aux (char *path, int flags, int mode)
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| {
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|   HOST_SERVICE (SVC_OPEN);
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| }
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| 
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