sys/arch/i386/stand/lib/test/stand_user.c

   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
  55 main(void)
  56 {
  57         char *h = malloc(HEAPSIZE);
  58         setheap(h, h + HEAPSIZE);
  59
  60         return samain();
  61 }
  62
  63 void
  64 _rtt(void)
  65 {
  66         warnx("_rtt called");
  67         _exit(1);
  68 }
  69
  70 int
  71 getsecs(void)
  72 {
  73         struct timeval t;
  74         gettimeofday(&t, 0);
  75         return t.tv_sec;
  76 }
  77
  78 void
  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
  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 *
 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
 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
 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;