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 * $FreeBSD$ 27 */ 28 29 #include <sys/types.h> 30 #include <sys/byteorder.h> 31 32 #include <stddef.h> 33 #include "elfh.h" 34 35 #define SET_ME 0xeeeeeeee /* filled in by btxld */ 36 37 /* 38 * Our endian.h is implementing functions, so need to use byteorder macros. 39 */ 40 #ifndef htole16 41 #define htole16 LE_16 42 #endif 43 #ifndef htole32 44 #define htole32 LE_32 45 #endif 46 47 /* 48 * ELF header template. 49 */ 50 const struct elfh elfhdr = { 51 { 52 { 53 ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3, /* e_ident */ 54 ELFCLASS32, ELFDATA2LSB, EV_CURRENT, 0, 55 'F', 'r', 'e', 'e', 'B', 'S', 'D', 0 56 }, 57 htole16(ET_EXEC), /* e_type */ 58 htole16(EM_386), /* e_machine */ 59 htole32(EV_CURRENT), /* e_version */ 60 htole32(SET_ME), /* e_entry */ 61 htole32(offsetof(struct elfh, p)), /* e_phoff */ 62 htole32(offsetof(struct elfh, sh)), /* e_shoff */ 63 0, /* e_flags */ 64 htole16(sizeof(elfhdr.e)), /* e_ehsize */ 65 htole16(sizeof(elfhdr.p[0])), /* e_phentsize */ 66 htole16(sizeof(elfhdr.p) / sizeof(elfhdr.p[0])), /* e_phnum */ 67 htole16(sizeof(elfhdr.sh[0])), /* e_shentsize */ 68 htole16(sizeof(elfhdr.sh) / sizeof(elfhdr.sh[0])), /* e_shnum */ 69 htole16(1) /* e_shstrndx */ 70 }, 71 { 72 { 73 htole32(PT_LOAD), /* p_type */ 74 htole32(sizeof(elfhdr)), /* p_offset */ 75 htole32(SET_ME), /* p_vaddr */ 76 htole32(SET_ME), /* p_paddr */ 77 htole32(SET_ME), /* p_filesz */ 78 htole32(SET_ME), /* p_memsz */ 79 htole32(PF_R | PF_X), /* p_flags */ 80 htole32(0x1000) /* p_align */ 81 }, 82 { 83 htole32(PT_LOAD), /* p_type */ 84 htole32(SET_ME), /* p_offset */ 85 htole32(SET_ME), /* p_vaddr */ 86 htole32(SET_ME), /* p_paddr */ 87 htole32(SET_ME), /* p_filesz */ 88 htole32(SET_ME), /* p_memsz */ 89 htole32(PF_R | PF_W), /* p_flags */ 90 htole32(0x1000) /* p_align */ 91 } 92 }, 93 { 94 { 95 0, htole32(SHT_NULL), 0, 0, 0, 0, htole32(SHN_UNDEF), 0, 0, 0 96 }, 97 { 98 htole32(1), /* sh_name */ 99 htole32(SHT_STRTAB), /* sh_type */ 100 0, /* sh_flags */ 101 0, /* sh_addr */ 102 htole32(offsetof(struct elfh, shstrtab)), /* sh_offset */ 103 htole32(sizeof(elfhdr.shstrtab)), /* sh_size */ 104 htole32(SHN_UNDEF), /* sh_link */ 105 0, /* sh_info */ 106 htole32(1), /* sh_addralign */ 107 0 /* sh_entsize */ 108 }, 109 { 110 htole32(0xb), /* sh_name */ 111 htole32(SHT_PROGBITS), /* sh_type */ 112 htole32(SHF_EXECINSTR | SHF_ALLOC), /* sh_flags */ 113 htole32(SET_ME), /* sh_addr */ 114 htole32(SET_ME), /* sh_offset */ 115 htole32(SET_ME), /* sh_size */ 116 htole32(SHN_UNDEF), /* sh_link */ 117 0, /* sh_info */ 118 htole32(4), /* sh_addralign */ 119 0 /* sh_entsize */ 120 }, 121 { 122 htole32(0x11), /* sh_name */ 123 htole32(SHT_PROGBITS), /* sh_type */ 124 htole32(SHF_ALLOC | SHF_WRITE), /* sh_flags */ 125 htole32(SET_ME), /* sh_addr */ 126 htole32(SET_ME), /* sh_offset */ 127 htole32(SET_ME), /* sh_size */ 128 htole32(SHN_UNDEF), /* sh_link */ 129 0, /* sh_info */ 130 htole32(4), /* sh_addralign */ 131 0 /* sh_entsize */ 132 } 133 }, 134 "\0.shstrtab\0.text\0.data" /* shstrtab */ 135 }; 136