/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jonathan Stone, Michael Hitch and Simon Burge.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)boot.c 8.1 (Berkeley) 6/10/93
*/
/*
* This gets arguments from the PROM, calls other routines to open
* and load the secondary boot loader called boot, and then transfers
* execution to that program.
*/
void
main(int argc, char **argv, int code, const void *cv, int bim, char *bip)
{
char *cp;
entrypt *entry;
/*
* Open 'filename', read in program and return the entry point or -1 if error.
*/
entrypt *
loadfile(char *path, char *name)
{
int fd, i;
char c, *buf, bootfname[64];
Elf32_Ehdr ehdr;
Elf32_Phdr phdr;
strcpy(bootfname, path);
buf = bootfname;
while ((c = *buf++) != '\0') {
if (c == ')')
break;
if (c != '/')
continue;
while ((c = *buf++) != '\0')
if (c == '/')
break;
/*
* Make "N/rzY" with no trailing '/' valid by adding
* the extra '/' before appending 'bootemips' to the path.
*/
if (c != '/') {
buf--;
*buf++ = '/';
*buf = '\0';
}
break;
}
strcpy(buf, name);
if ((fd = open(bootfname, 0)) < 0) {
printf("open %s: %d\n", bootfname, errno);
goto err;
}
/* read the exec header */
i = read(fd, (char *)&ehdr, sizeof(ehdr));
if ((i != sizeof(ehdr)) ||
(memcmp(ehdr.e_ident, ELFMAG, SELFMAG) != 0) ||
(ehdr.e_ident[EI_CLASS] != ELFCLASS32)) {
printf("%s: No ELF header\n", bootfname);
goto cerr;
}
for (i = 0; i < ehdr.e_phnum; i++) {
if (lseek(fd, (off_t) ehdr.e_phoff + i * sizeof(phdr), 0) < 0)
goto cerr;
if (read(fd, &phdr, sizeof(phdr)) != sizeof(phdr))
goto cerr;
if (phdr.p_type != PT_LOAD)
continue;
if (lseek(fd, (off_t)phdr.p_offset, 0) < 0)
goto cerr;
if (read(fd, (char *)phdr.p_paddr, phdr.p_filesz) != phdr.p_filesz)
goto cerr;
}
return ((entrypt*)ehdr.e_entry);
