1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1998 Robert Nordier 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 22 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <sys/types.h> 32 #include <sys/endian.h> 33 34 #include <stddef.h> 35 #include "elfh.h" 36 37 #define SET_ME 0xeeeeeeee /* filled in by btxld */ 38 39 /* 40 * ELF header template. 41 */ 42 const struct elfh elfhdr = { 43 { 44 { 45 ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3, /* e_ident */ 46 ELFCLASS32, ELFDATA2LSB, EV_CURRENT, 0, 47 'F', 'r', 'e', 'e', 'B', 'S', 'D', 0 48 }, 49 htole16(ET_EXEC), /* e_type */ 50 htole16(EM_386), /* e_machine */ 51 htole32(EV_CURRENT), /* e_version */ 52 htole32(SET_ME), /* e_entry */ 53 htole32(offsetof(struct elfh, p)), /* e_phoff */ 54 htole32(offsetof(struct elfh, sh)), /* e_shoff */ 55 0, /* e_flags */ 56 htole16(sizeof(elfhdr.e)), /* e_ehsize */ 57 htole16(sizeof(elfhdr.p[0])), /* e_phentsize */ 58 htole16(sizeof(elfhdr.p) / sizeof(elfhdr.p[0])), /* e_phnum */ 59 htole16(sizeof(elfhdr.sh[0])), /* e_shentsize */ 60 htole16(sizeof(elfhdr.sh) / sizeof(elfhdr.sh[0])), /* e_shnum */ 61 htole16(1) /* e_shstrndx */ 62 }, 63 { 64 { 65 htole32(PT_LOAD), /* p_type */ 66 htole32(sizeof(elfhdr)), /* p_offset */ 67 htole32(SET_ME), /* p_vaddr */ 68 htole32(SET_ME), /* p_paddr */ 69 htole32(SET_ME), /* p_filesz */ 70 htole32(SET_ME), /* p_memsz */ 71 htole32(PF_R | PF_X), /* p_flags */ 72 htole32(0x1000) /* p_align */ 73 }, 74 { 75 htole32(PT_LOAD), /* p_type */ 76 htole32(SET_ME), /* p_offset */ 77 htole32(SET_ME), /* p_vaddr */ 78 htole32(SET_ME), /* p_paddr */ 79 htole32(SET_ME), /* p_filesz */ 80 htole32(SET_ME), /* p_memsz */ 81 htole32(PF_R | PF_W), /* p_flags */ 82 htole32(0x1000) /* p_align */ 83 } 84 }, 85 { 86 { 87 0, htole32(SHT_NULL), 0, 0, 0, 0, htole32(SHN_UNDEF), 0, 0, 0 88 }, 89 { 90 htole32(1), /* sh_name */ 91 htole32(SHT_STRTAB), /* sh_type */ 92 0, /* sh_flags */ 93 0, /* sh_addr */ 94 htole32(offsetof(struct elfh, shstrtab)), /* sh_offset */ 95 htole32(sizeof(elfhdr.shstrtab)), /* sh_size */ 96 htole32(SHN_UNDEF), /* sh_link */ 97 0, /* sh_info */ 98 htole32(1), /* sh_addralign */ 99 0 /* sh_entsize */ 100 }, 101 { 102 htole32(0xb), /* sh_name */ 103 htole32(SHT_PROGBITS), /* sh_type */ 104 htole32(SHF_EXECINSTR | SHF_ALLOC), /* sh_flags */ 105 htole32(SET_ME), /* sh_addr */ 106 htole32(SET_ME), /* sh_offset */ 107 htole32(SET_ME), /* sh_size */ 108 htole32(SHN_UNDEF), /* sh_link */ 109 0, /* sh_info */ 110 htole32(4), /* sh_addralign */ 111 0 /* sh_entsize */ 112 }, 113 { 114 htole32(0x11), /* sh_name */ 115 htole32(SHT_PROGBITS), /* sh_type */ 116 htole32(SHF_ALLOC | SHF_WRITE), /* sh_flags */ 117 htole32(SET_ME), /* sh_addr */ 118 htole32(SET_ME), /* sh_offset */ 119 htole32(SET_ME), /* sh_size */ 120 htole32(SHN_UNDEF), /* sh_link */ 121 0, /* sh_info */ 122 htole32(4), /* sh_addralign */ 123 0 /* sh_entsize */ 124 } 125 }, 126 "\0.shstrtab\0.text\0.data" /* shstrtab */ 127 }; 128