xref: /netbsd-src/sys/arch/i386/stand/lib/test/stand_user.c (revision 49e9ba9a6b10710ac7fc487a0dc54bcc4c455db7)
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