1 /* $NetBSD: stand_user.c,v 1.6 2008/12/14 18:46:33 christos Exp $ */
2
3 /*
4 * Copyright (c) 1998
5 * Matthias Drochner. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29 #include <lib/libsa/stand.h>
30
31 #include "sanamespace.h"
32
33 #include <stdio.h>
34 #include <unistd.h>
35 #include <stdlib.h>
36 #include <stdarg.h>
37 #include <sys/time.h>
38 #include <fcntl.h>
39 #include <sys/mman.h>
40 #include <machine/sysarch.h>
41 #include <err.h>
42
43 /*
44 * Harness for test of standalone code in user space.
45 * XXX Requires silly namespace games.
46 */
47
48 #ifndef HEAPSIZE
49 #define HEAPSIZE (128*1024)
50 #endif
51
52 int samain(void);
53
54 int
main(void)55 main(void)
56 {
57 char *h = malloc(HEAPSIZE);
58 setheap(h, h + HEAPSIZE);
59
60 return samain();
61 }
62
63 void
_rtt(void)64 _rtt(void)
65 {
66 warnx("_rtt called");
67 _exit(1);
68 }
69
70 int
getsecs(void)71 getsecs(void)
72 {
73 struct timeval t;
74 gettimeofday(&t, 0);
75 return t.tv_sec;
76 }
77
78 void
delay(int t)79 delay(int t)
80 {
81 struct timeval to;
82 to.tv_sec = 0;
83 to.tv_usec = t;
84 select(0, 0, 0, 0, &to);
85 }
86
87 /* make output appear unbuffered */
88 void
saputchar(int c)89 saputchar(int c)
90 {
91 putchar(c);
92 fflush(stdout);
93 }
94
95 /*
96 * some functions to get access to the hardware
97 */
98
99 static int memfd, memcnt;
100
101 void *
mapmem(int offset,int len)102 mapmem(int offset, int len)
103 {
104 void *base;
105
106 if (memcnt == 0)
107 memfd = open("/dev/mem", O_RDWR, 0);
108 if (memfd < 0) {
109 warn("open /dev/mem");
110 return 0;
111 }
112 base = mmap(0, len, PROT_READ | PROT_WRITE, MAP_SHARED,
113 memfd, offset);
114 if (base == (void *)-1) {
115 warn("mmap %x-%x", offset, offset + len - 1);
116 return 0;
117 }
118 memcnt++;
119 return base;
120 }
121
122 void
unmapmem(void * addr,int len)123 unmapmem(void *addr, int len)
124 {
125
126 munmap(addr, len);
127 memcnt--;
128 if (memcnt == 0)
129 close(memfd);
130 }
131
132 int
mapio(void)133 mapio(void)
134 {
135 int res;
136
137 res = i386_iopl(1);
138 if (res)
139 warn("i386_iopl");
140 return res;
141 }
142
143 int ourseg = 12345;
144