elfh.c revision 39092 
1/*
2 * Copyright (c) 1998 Robert Nordier
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
19 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
20 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
21 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
23 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 *	$Id:$
27 */
28
29#include <stddef.h>
30#include "elfh.h"
31
32#define SET_ME	0xeeeeeeee    /* filled in by btxld */
33
34/*
35 * ELF header template.
36 */
37const struct elfh elfhdr = {
38    {
39	{
40	    ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3,     /* e_ident */
41	    ELFCLASS32, ELFDATA2LSB, EV_CURRENT, 0,
42	    'F', 'r', 'e', 'e', 'B', 'S', 'D', 0
43	},
44	ET_EXEC,				    /* e_type */
45	EM_386, 				    /* e_machine */
46	EV_CURRENT,				    /* e_version */
47	SET_ME, 				    /* e_entry */
48	offsetof(struct elfh, p),		    /* e_phoff */
49	offsetof(struct elfh, sh),		    /* e_shoff */
50	0,					    /* e_flags */
51	sizeof(elfhdr.e),			    /* e_ehsize */
52	sizeof(elfhdr.p[0]),			    /* e_phentsize */
53	sizeof(elfhdr.p) / sizeof(elfhdr.p[0]),     /* e_phnum */
54	sizeof(elfhdr.sh[0]),			    /* e_shentsize */
55	sizeof(elfhdr.sh) / sizeof(elfhdr.sh[0]),   /* e_shnum */
56	1					    /* e_shstrndx */
57    },
58    {
59	{
60	    PT_LOAD,				    /* p_type */
61	    sizeof(elfhdr),			    /* p_offset */
62	    SET_ME,				    /* p_vaddr */
63	    SET_ME,				    /* p_paddr */
64	    SET_ME,				    /* p_filesz */
65	    SET_ME,				    /* p_memsz */
66	    PF_R | PF_X,			    /* p_flags */
67	    0x1000				    /* p_align */
68	},
69	{
70	    PT_LOAD,				    /* p_type */
71	    SET_ME,				    /* p_offset */
72	    SET_ME,				    /* p_vaddr */
73	    SET_ME,				    /* p_paddr */
74	    SET_ME,				    /* p_filesz */
75	    SET_ME,				    /* p_memsz */
76	    PF_R | PF_W,			    /* p_flags */
77	    0x1000				    /* p_align */
78	}
79    },
80    {
81	{
82	    0, SHT_NULL, 0, 0, 0, 0, SHN_UNDEF, 0, 0, 0
83	},
84	{
85	    1,					    /* sh_name */
86	    SHT_STRTAB, 			    /* sh_type */
87	    0,					    /* sh_flags */
88	    0,					    /* sh_addr */
89	    offsetof(struct elfh, shstrtab),	    /* sh_offset */
90	    sizeof(elfhdr.shstrtab),		    /* sh_size */
91	    SHN_UNDEF,				    /* sh_link */
92	    0,					    /* sh_info */
93	    1,					    /* sh_addralign */
94	    0					    /* sh_entsize */
95	},
96	{
97	    0xb,				    /* sh_name */
98	    SHT_PROGBITS,			    /* sh_type */
99	    SHF_EXECINSTR | SHF_ALLOC,		    /* sh_flags */
100	    SET_ME,				    /* sh_addr */
101	    SET_ME,				    /* sh_offset */
102	    SET_ME,				    /* sh_size */
103	    SHN_UNDEF,				    /* sh_link */
104	    0,					    /* sh_info */
105	    4,					    /* sh_addralign */
106	    0					    /* sh_entsize */
107	},
108	{
109	    0x11,				    /* sh_name */
110	    SHT_PROGBITS,			    /* sh_type */
111	    SHF_ALLOC | SHF_WRITE,		    /* sh_flags */
112	    SET_ME,				    /* sh_addr */
113	    SET_ME,				    /* sh_offset */
114	    SET_ME,				    /* sh_size */
115	    SHN_UNDEF,				    /* sh_link */
116	    0,					    /* sh_info */
117	    4,					    /* sh_addralign */
118	    0					    /* sh_entsize */
119	}
120    },
121    "\0.shstrtab\0.text\0.data" 		    /* shstrtab */
122};
123