144 lines
2.8 KiB
C
144 lines
2.8 KiB
C
/* $NetBSD: stand_user.c,v 1.6 2008/12/14 18:46:33 christos Exp $ */
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/*
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* Copyright (c) 1998
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* Matthias Drochner. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <lib/libsa/stand.h>
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#include "sanamespace.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <sys/time.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <machine/sysarch.h>
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#include <err.h>
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/*
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* Harness for test of standalone code in user space.
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* XXX Requires silly namespace games.
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*/
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#ifndef HEAPSIZE
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#define HEAPSIZE (128*1024)
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#endif
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int samain(void);
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int
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main(void)
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{
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char *h = malloc(HEAPSIZE);
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setheap(h, h + HEAPSIZE);
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return samain();
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}
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void
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_rtt(void)
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{
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warnx("_rtt called");
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_exit(1);
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}
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int
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getsecs(void)
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{
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struct timeval t;
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gettimeofday(&t, 0);
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return t.tv_sec;
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}
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void
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delay(int t)
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{
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struct timeval to;
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to.tv_sec = 0;
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to.tv_usec = t;
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select(0, 0, 0, 0, &to);
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}
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/* make output appear unbuffered */
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void
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saputchar(int c)
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{
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putchar(c);
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fflush(stdout);
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}
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/*
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* some functions to get access to the hardware
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*/
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static int memfd, memcnt;
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void *
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mapmem(int offset, int len)
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{
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void *base;
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if (memcnt == 0)
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memfd = open("/dev/mem", O_RDWR, 0);
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if (memfd < 0) {
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warn("open /dev/mem");
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return 0;
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}
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base = mmap(0, len, PROT_READ | PROT_WRITE, MAP_SHARED,
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memfd, offset);
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if (base == (void *)-1) {
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warn("mmap %x-%x", offset, offset + len - 1);
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return 0;
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}
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memcnt++;
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return base;
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}
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void
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unmapmem(void *addr, int len)
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{
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munmap(addr, len);
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memcnt--;
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if (memcnt == 0)
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close(memfd);
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}
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int
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mapio(void)
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{
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int res;
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res = i386_iopl(1);
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if (res)
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warn("i386_iopl");
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return res;
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}
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int ourseg = 12345;
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