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: src/usr.sbin/btxld/elfh.c,v 1.3 2000/01/04 14:10:36 marcel Exp $ 27 * $DragonFly: src/usr.sbin/btxld/elfh.c,v 1.2 2003/06/17 04:29:52 dillon Exp $ 28 */ 29 30 #include <sys/types.h> 31 32 #include <stddef.h> 33 #include "elfh.h" 34 35 #define SET_ME 0xeeeeeeee /* filled in by btxld */ 36 37 /* 38 * ELF header template. 39 */ 40 const struct elfh elfhdr = { 41 { 42 { 43 ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3, /* e_ident */ 44 ELFCLASS32, ELFDATA2LSB, EV_CURRENT, 0, 45 'F', 'r', 'e', 'e', 'B', 'S', 'D', 0 46 }, 47 ET_EXEC, /* e_type */ 48 EM_386, /* e_machine */ 49 EV_CURRENT, /* e_version */ 50 SET_ME, /* e_entry */ 51 offsetof(struct elfh, p), /* e_phoff */ 52 offsetof(struct elfh, sh), /* e_shoff */ 53 0, /* e_flags */ 54 sizeof(elfhdr.e), /* e_ehsize */ 55 sizeof(elfhdr.p[0]), /* e_phentsize */ 56 sizeof(elfhdr.p) / sizeof(elfhdr.p[0]), /* e_phnum */ 57 sizeof(elfhdr.sh[0]), /* e_shentsize */ 58 sizeof(elfhdr.sh) / sizeof(elfhdr.sh[0]), /* e_shnum */ 59 1 /* e_shstrndx */ 60 }, 61 { 62 { 63 PT_LOAD, /* p_type */ 64 sizeof(elfhdr), /* p_offset */ 65 SET_ME, /* p_vaddr */ 66 SET_ME, /* p_paddr */ 67 SET_ME, /* p_filesz */ 68 SET_ME, /* p_memsz */ 69 PF_R | PF_X, /* p_flags */ 70 0x1000 /* p_align */ 71 }, 72 { 73 PT_LOAD, /* p_type */ 74 SET_ME, /* p_offset */ 75 SET_ME, /* p_vaddr */ 76 SET_ME, /* p_paddr */ 77 SET_ME, /* p_filesz */ 78 SET_ME, /* p_memsz */ 79 PF_R | PF_W, /* p_flags */ 80 0x1000 /* p_align */ 81 } 82 }, 83 { 84 { 85 0, SHT_NULL, 0, 0, 0, 0, SHN_UNDEF, 0, 0, 0 86 }, 87 { 88 1, /* sh_name */ 89 SHT_STRTAB, /* sh_type */ 90 0, /* sh_flags */ 91 0, /* sh_addr */ 92 offsetof(struct elfh, shstrtab), /* sh_offset */ 93 sizeof(elfhdr.shstrtab), /* sh_size */ 94 SHN_UNDEF, /* sh_link */ 95 0, /* sh_info */ 96 1, /* sh_addralign */ 97 0 /* sh_entsize */ 98 }, 99 { 100 0xb, /* sh_name */ 101 SHT_PROGBITS, /* sh_type */ 102 SHF_EXECINSTR | SHF_ALLOC, /* sh_flags */ 103 SET_ME, /* sh_addr */ 104 SET_ME, /* sh_offset */ 105 SET_ME, /* sh_size */ 106 SHN_UNDEF, /* sh_link */ 107 0, /* sh_info */ 108 4, /* sh_addralign */ 109 0 /* sh_entsize */ 110 }, 111 { 112 0x11, /* sh_name */ 113 SHT_PROGBITS, /* sh_type */ 114 SHF_ALLOC | SHF_WRITE, /* sh_flags */ 115 SET_ME, /* sh_addr */ 116 SET_ME, /* sh_offset */ 117 SET_ME, /* sh_size */ 118 SHN_UNDEF, /* sh_link */ 119 0, /* sh_info */ 120 4, /* sh_addralign */ 121 0 /* sh_entsize */ 122 } 123 }, 124 "\0.shstrtab\0.text\0.data" /* shstrtab */ 125 }; 126