/* open.c -- Implementation of the low-level open() routine
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/* open.c -- Implementation of the low-level open() routine
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*
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*
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* Copyright (c) 2004 National Semiconductor Corporation
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* Copyright (c) 2004 National Semiconductor Corporation
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*
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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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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* 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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* 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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* 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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* 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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* 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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* 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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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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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 <sys/syscall.h>
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#include <stdarg.h>
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#include <stdarg.h>
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int open_aux (char *, int, int);
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int open_aux (char *, int, int);
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/* The prototype in <fcntl.h> for open() uses ..., meaning function
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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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* 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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* to reside in registers, thus we call an auxiliary function with
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* bounded number of parameters.
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* bounded number of parameters.
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*/
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*/
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int open (char *path, int flags, ...)
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int open (char *path, int flags, ...)
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{
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{
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int mode;
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int mode;
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va_list ap;
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va_list ap;
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va_start(ap, flags);
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va_start(ap, flags);
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mode = va_arg(ap, int);
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mode = va_arg(ap, int);
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open_aux (path, flags, mode);
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open_aux (path, flags, mode);
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va_end(ap);
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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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int open_aux (char *path, int flags, int mode)
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{
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{
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HOST_SERVICE (SVC_OPEN);
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HOST_SERVICE (SVC_OPEN);
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}
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}
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