1ca987d46SWarner Losh /*-
2ca987d46SWarner Losh * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3ca987d46SWarner Losh * All rights reserved.
4ca987d46SWarner Losh *
5ca987d46SWarner Losh * Redistribution and use in source and binary forms, with or without
6ca987d46SWarner Losh * modification, are permitted provided that the following conditions
7ca987d46SWarner Losh * are met:
8ca987d46SWarner Losh * 1. Redistributions of source code must retain the above copyright
9ca987d46SWarner Losh * notice, this list of conditions and the following disclaimer.
10ca987d46SWarner Losh * 2. Redistributions in binary form must reproduce the above copyright
11ca987d46SWarner Losh * notice, this list of conditions and the following disclaimer in the
12ca987d46SWarner Losh * documentation and/or other materials provided with the distribution.
13ca987d46SWarner Losh *
14ca987d46SWarner Losh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15ca987d46SWarner Losh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16ca987d46SWarner Losh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17ca987d46SWarner Losh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18ca987d46SWarner Losh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19ca987d46SWarner Losh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20ca987d46SWarner Losh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21ca987d46SWarner Losh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22ca987d46SWarner Losh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23ca987d46SWarner Losh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24ca987d46SWarner Losh * SUCH DAMAGE.
25ca987d46SWarner Losh */
26ca987d46SWarner Losh
27ca987d46SWarner Losh #include <sys/param.h>
28ca987d46SWarner Losh #include <sys/exec.h>
29ca987d46SWarner Losh #include <sys/linker.h>
30ca987d46SWarner Losh #include <string.h>
31ca987d46SWarner Losh #include <machine/bootinfo.h>
32ca987d46SWarner Losh #include <machine/elf.h>
33ca987d46SWarner Losh #include <stand.h>
34ca987d46SWarner Losh
35ca987d46SWarner Losh #include "bootstrap.h"
36ca987d46SWarner Losh #include "libi386.h"
37ca987d46SWarner Losh #include "btxv86.h"
38ca987d46SWarner Losh
39ca987d46SWarner Losh static int elf32_exec(struct preloaded_file *amp);
40ca987d46SWarner Losh static int elf32_obj_exec(struct preloaded_file *amp);
41ca987d46SWarner Losh
42ca987d46SWarner Losh struct file_format i386_elf = { elf32_loadfile, elf32_exec };
43ca987d46SWarner Losh struct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec };
44ca987d46SWarner Losh
45ca987d46SWarner Losh /*
46ca987d46SWarner Losh * There is an ELF kernel and one or more ELF modules loaded.
47ca987d46SWarner Losh * We wish to start executing the kernel image, so make such
48ca987d46SWarner Losh * preparations as are required, and do so.
49ca987d46SWarner Losh */
50ca987d46SWarner Losh static int
elf32_exec(struct preloaded_file * fp)51ca987d46SWarner Losh elf32_exec(struct preloaded_file *fp)
52ca987d46SWarner Losh {
53ca987d46SWarner Losh struct file_metadata *md;
54ca987d46SWarner Losh Elf_Ehdr *ehdr;
55ca987d46SWarner Losh vm_offset_t entry, bootinfop, modulep, kernend;
56ca987d46SWarner Losh int boothowto, err, bootdev;
57ca987d46SWarner Losh
58ca987d46SWarner Losh if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
59ca987d46SWarner Losh return(EFTYPE);
60ca987d46SWarner Losh ehdr = (Elf_Ehdr *)&(md->md_data);
61ca987d46SWarner Losh
62ca987d46SWarner Losh err = bi_load32(fp->f_args, &boothowto, &bootdev, &bootinfop, &modulep, &kernend);
63ca987d46SWarner Losh if (err != 0)
64ca987d46SWarner Losh return(err);
65ca987d46SWarner Losh entry = ehdr->e_entry & 0xffffff;
66ca987d46SWarner Losh
67ca987d46SWarner Losh #ifdef DEBUG
68ca987d46SWarner Losh printf("Start @ 0x%lx ...\n", entry);
69ca987d46SWarner Losh #endif
70ca987d46SWarner Losh
71ca987d46SWarner Losh dev_cleanup();
72ca987d46SWarner Losh __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend);
73ca987d46SWarner Losh
74ca987d46SWarner Losh panic("exec returned");
75ca987d46SWarner Losh }
76ca987d46SWarner Losh
77ca987d46SWarner Losh static int
elf32_obj_exec(struct preloaded_file * fp)78ca987d46SWarner Losh elf32_obj_exec(struct preloaded_file *fp)
79ca987d46SWarner Losh {
80ca987d46SWarner Losh return (EFTYPE);
81ca987d46SWarner Losh }
82