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pbsdboot.c revision 1.3 
      1 /*	$NetBSD: pbsdboot.c,v 1.3 2000/03/19 11:10:58 takemura 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 	caddr_t start, end;
     47 	caddr_t argbuf, p;
     48 	struct bootinfo *bibuf;
     49 	int fd = -1;
     50 
     51 	if (CheckCancel(0) || (fd = open((char*)wkernel_name, O_RDONLY)) < 0) {
     52 		msg_printf(MSG_ERROR, whoami, TEXT("open failed.\n"));
     53 		goto cancel;
     54 	}
     55 
     56 	if (CheckCancel(0) || getinfo(fd, &start, &end) < 0) {
     57 		goto cancel;
     58 	}
     59 
     60 	if (CheckCancel(0) || vmem_init(start, end) < 0) {
     61 		goto cancel;
     62 	}
     63 	//vmem_dump_map();
     64 
     65 	if ((argbuf = vmem_alloc()) == NULL ||
     66 		(bibuf = (struct bootinfo*)vmem_alloc()) == NULL) {
     67 		msg_printf(MSG_ERROR, whoami, TEXT("can't allocate argument page\n"));
     68 		goto cancel;
     69 	}
     70 
     71 	memcpy(bibuf, bi, sizeof(struct bootinfo));
     72 	for (p = &argbuf[sizeof(char*) * argc], i = 0; i < argc; i++) {
     73 		int arglen = strlen(argv[i]) + 1;
     74 		((char**)argbuf)[i] = p;
     75 		memcpy(p, argv[i], arglen);
     76 		p += arglen;
     77 	}
     78 
     79 	if (CheckCancel(0) || loadfile(fd, &start) < 0) {
     80 		goto cancel;
     81 	}
     82 
     83 	/* last chance to cancel */
     84 	if (CheckCancel(-1)) {
     85 		goto cancel;
     86 	}
     87 
     88 	vmem_exec(start, argc, (char**)argbuf, bibuf);
     89 
     90 cancel:
     91 	if (0 <= fd) {
     92 		close(fd);
     93 	}
     94 	vmem_free();
     95 
     96 	return (-1);
     97 }
     98