1 /* sim-time.c -- stubs so clock can be linked in.
2 *
3 * Copyright (c) 2002 Red Hat, Inc
4 *
5 * The authors hereby grant permission to use, copy, modify, distribute,
6 * and license this software and its documentation for any purpose, provided
7 * that existing copyright notices are retained in all copies and that this
8 * notice is included verbatim in any distributions. No written agreement,
9 * license, or royalty fee is required for any of the authorized uses.
10 * Modifications to this software may be copyrighted by their authors
11 * and need not follow the licensing terms described here, provided that
12 * the new terms are clearly indicated on the first page of each file where
13 * they apply.
14 */
15 #include <errno.h>
16 #include <sys/time.h>
17 #include <sys/times.h>
18 #include "glue.h"
19
20 /*
21 * time -- simulator interface to return current time in seconds.
22 */
23 __asm__ ("\
24 .text\n\
25 .globl _sim_time\n\
26 .type _sim_time,@function\n\
27 _sim_time:\n\
28 setlos #18, gr7\n\
29 tira gr0, #0\n\
30 ret\n\
31 .Lsim:\n\
32 .size _sim_time,.Lsim-_sim_time");
33
34 extern time_t _sim_time (void) __asm__("_sim_time");
35
36
37 /*
38 * time -- return current time in seconds.
39 */
40 time_t
_DEFUN(time,time (t),time_t * t)41 _DEFUN (time, time (t),
42 time_t *t)
43 {
44 time_t ret = _sim_time ();
45
46 if (t)
47 *t = ret;
48
49 return ret;
50 }
51
52 /*
53 * _times -- no clock, so return an error.
54 */
55 int
_DEFUN(_times,_times (buf),struct tms * buf)56 _DEFUN (_times, _times (buf),
57 struct tms *buf)
58 {
59 errno = EINVAL;
60 return (-1);
61 }
62
63 /*
64 * _gettimeofday -- implement in terms of time, which means we can't return the
65 * microseconds.
66 */
67 int
_DEFUN(_gettimeofday,_gettimeofday (tv,tz),struct timeval * tv _AND struct timezone * tz)68 _DEFUN (_gettimeofday, _gettimeofday (tv, tz),
69 struct timeval *tv _AND
70 struct timezone *tz)
71 {
72 if (tz)
73 tz->tz_minuteswest = tz->tz_dsttime = 0;
74
75 tv->tv_usec = 0;
76 tv->tv_sec = _sim_time ();
77 return 0;
78 }
79