sys/arch/hpcmips/stand/pbsdboot/pbsdboot.c

   1 /*      $NetBSD: pbsdboot.c,v 1.5 2007/03/04 05:59:53 christos Exp $    */
   2
   3 /*-
   4  * Copyright (c) 1999 Shin Takemura.
   5  * All rights reserved.
   6  *
   7  * This software is part of the PocketBSD.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by the PocketBSD project
  20  *      and its contributors.
  21  * 4. Neither the name of the project nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  *
  37  */
  38 #include <pbsdboot.h>
  39
  40 #define O_RDONLY        0x0000          /* open for reading only */
  41
  42 int
  43 pbsdboot(TCHAR *wkernel_name, int argc, char *argv[], struct bootinfo* bi)
  44 {
  45         int i;
  46         void *start, end;
  47         void *argbuf, *p;
  48         struct bootinfo *bibuf;
  49         int fd = -1;
  50
  51         stat_printf(TEXT("open %s..."), wkernel_name);
  52         if (CheckCancel(0) || (fd = open((char*)wkernel_name, O_RDONLY)) < 0) {
  53                 msg_printf(MSG_ERROR, whoami, TEXT("open failed.\n"));
  54                 stat_printf(TEXT("open %s...failed"), wkernel_name);
  55                 goto cancel;
  56         }
  57
  58         stat_printf(TEXT("read information from %s..."), wkernel_name);
  59         if (CheckCancel(0) || getinfo(fd, &start, &end) < 0) {
  60                 stat_printf(TEXT("read information failed"), wkernel_name);
  61                 goto cancel;
  62         }
  63
  64         stat_printf(TEXT("create memory map..."));
  65         if (CheckCancel(0) || vmem_init(start, end) < 0) {
  66                 stat_printf(TEXT("create memory map...failed"));
  67                 goto cancel;
  68         }
  69         //vmem_dump_map();
  70
  71         stat_printf(TEXT("prepare boot information..."));
  72         if ((argbuf = vmem_alloc()) == NULL ||
  73                 (bibuf = (struct bootinfo*)vmem_alloc()) == NULL) {
  74                 msg_printf(MSG_ERROR, whoami, TEXT("can't allocate argument page\n"));
  75                 stat_printf(TEXT("prepare boot information...failed"));
  76                 goto cancel;
  77         }
  78
  79         memcpy(bibuf, bi, sizeof(struct bootinfo));
  80         for (p = &argbuf[sizeof(char*) * argc], i = 0; i < argc; i++) {
  81                 int arglen = strlen(argv[i]) + 1;
  82                 ((char**)argbuf)[i] = p;
  83                 memcpy(p, argv[i], arglen);
  84                 p += arglen;
  85         }
  86
  87         stat_printf(TEXT("loading..."));
  88         if (CheckCancel(0) || loadfile(fd, &start) < 0) {
  89                 stat_printf(TEXT("loading...failed"));
  90                 goto cancel;
  91         }
  92
  93         /* last chance to cancel */
  94         if (CheckCancel(-1)) {
  95                 goto cancel;
  96         }
  97
  98         stat_printf(TEXT("execute kernel..."));
  99         vmem_exec(start, argc, (char**)argbuf, bibuf);
 100         stat_printf(TEXT("execute kernel...failed"));
 101
 102 cancel:
 103         if (0 <= fd) {
 104                 close(fd);
 105         }
 106         vmem_free();
 107
 108         return (-1);
 109 }