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/* sim-time.c -- stubs so clock can be linked in.
*
* Copyright (c) 2008 Anthony Green
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <errno.h>
#include <sys/time.h>
#include <sys/times.h>
#include "glue.h"
/*
* time -- simulator interface to return current time in seconds.
*/
__asm__ ("\
.text\n\
.globl _sim_time\n\
.type _sim_time,@function\n\
_sim_time:\n\
jmpa _sim_time\n\
ret\n\
.Lsim:\n\
.size _sim_time,.Lsim-_sim_time");
extern time_t _sim_time (void) __asm__("_sim_time");
/*
* time -- return current time in seconds.
*/
time_t
_DEFUN (time, time (t),
time_t *t)
{
time_t ret = _sim_time ();
if (t)
*t = ret;
return ret;
}
/*
* _times -- no clock, so return an error.
*/
int
_DEFUN (_times, _times (buf),
struct tms *buf)
{
errno = EINVAL;
return (-1);
}
/*
* _gettimeofday -- implement in terms of time, which means we can't return the
* microseconds.
*/
int
_DEFUN (_gettimeofday, _gettimeofday (tv, tz),
struct timeval *tv _AND
void *tzvp)
{
struct timezone *tz = tzvp;
if (tz)
tz->tz_minuteswest = tz->tz_dsttime = 0;
tv->tv_usec = 0;
tv->tv_sec = _sim_time ();
return 0;
}
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