2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/param.h>
31 #include <sys/imgact_aout.h>
32 #include <sys/reboot.h>
33 #include <sys/linker.h>
35 #include <machine/bootinfo.h>
38 #include "bootstrap.h"
42 static int aout_exec(struct loaded_module *amp);
44 struct module_format i386_aout = { aout_loadmodule, aout_exec };
47 * There is an a.out kernel and one or more a.out modules loaded.
48 * We wish to start executing the kernel image, so make such
49 * preparations as are required, and do so.
52 aout_exec(struct loaded_module *mp)
54 struct module_metadata *md;
56 vm_offset_t entry, bootinfop;
57 int boothowto, err, bootdev;
59 vm_offset_t ssym, esym;
61 if ((md = mod_findmetadata(mp, MODINFOMD_AOUTEXEC)) == NULL)
62 return(EFTYPE); /* XXX actually EFUCKUP */
63 ehdr = (struct exec *)&(md->md_data);
65 if ((err = bi_load(mp->m_args, &boothowto, &bootdev, &bootinfop)) != 0)
67 entry = ehdr->a_entry & 0xffffff;
70 if ((md = mod_findmetadata(mp, MODINFOMD_SSYM)) != NULL)
71 ssym = *((vm_offset_t *)&(md->md_data));
72 if ((md = mod_findmetadata(mp, MODINFOMD_ESYM)) != NULL)
73 esym = *((vm_offset_t *)&(md->md_data));
74 if (ssym == 0 || esym == 0)
75 ssym = esym = 0; /* sanity */
76 bi = (struct bootinfo *)PTOV(bootinfop);
77 bi->bi_symtab = ssym; /* XXX this is only the primary kernel symtab */
78 bi->bi_esymtab = esym;
80 __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop);
82 panic("exec returned");