79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
/* sim-time.c -- stubs so clock can be linked in.
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*
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* Copyright (c) 2008 Anthony Green
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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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#include <errno.h>
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#include <sys/time.h>
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#include <sys/times.h>
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#include "glue.h"
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/*
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* time -- simulator interface to return current time in seconds.
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*/
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__asm__ ("\
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.text\n\
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.globl _sim_time\n\
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.type _sim_time,@function\n\
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_sim_time:\n\
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jmpa _sim_time\n\
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ret\n\
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.Lsim:\n\
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.size _sim_time,.Lsim-_sim_time");
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extern time_t _sim_time (void) __asm__("_sim_time");
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/*
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* time -- return current time in seconds.
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*/
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time_t
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_DEFUN (time, time (t),
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time_t *t)
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{
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time_t ret = _sim_time ();
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if (t)
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*t = ret;
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return ret;
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}
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/*
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* _times -- no clock, so return an error.
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*/
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int
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_DEFUN (_times, _times (buf),
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struct tms *buf)
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{
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errno = EINVAL;
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return (-1);
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}
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/*
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* _gettimeofday -- implement in terms of time, which means we can't return the
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* microseconds.
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*/
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int
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_DEFUN (_gettimeofday, _gettimeofday (tv, tz),
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struct timeval *tv _AND
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void *tzvp)
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{
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struct timezone *tz = tzvp;
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if (tz)
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tz->tz_minuteswest = tz->tz_dsttime = 0;
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tv->tv_usec = 0;
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tv->tv_sec = _sim_time ();
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return 0;
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}
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