2 * Copyright (c) 2006,2008 Joseph Koshy
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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 PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
38 ELFTC_VCSID("$Id: gelf_ehdr.c 2268 2011-12-03 17:05:11Z jkoshy $");
43 return (_libelf_ehdr(e, ELFCLASS32, 0));
49 return (_libelf_ehdr(e, ELFCLASS64, 0));
53 gelf_getehdr(Elf *e, GElf_Ehdr *d)
59 if (d == NULL || e == NULL ||
60 ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
61 LIBELF_SET_ERROR(ARGUMENT, 0);
65 if (ec == ELFCLASS32) {
66 if ((eh32 = _libelf_ehdr(e, ELFCLASS32, 0)) == NULL)
69 (void) memcpy(d->e_ident, eh32->e_ident,
70 sizeof(eh32->e_ident));
71 d->e_type = eh32->e_type;
72 d->e_machine = eh32->e_machine;
73 d->e_version = eh32->e_version;
74 d->e_entry = eh32->e_entry;
75 d->e_phoff = eh32->e_phoff;
76 d->e_shoff = eh32->e_shoff;
77 d->e_flags = eh32->e_flags;
78 d->e_ehsize = eh32->e_ehsize;
79 d->e_phentsize = eh32->e_phentsize;
80 d->e_phnum = eh32->e_phnum;
81 d->e_shentsize = eh32->e_shentsize;
82 d->e_shnum = eh32->e_shnum;
83 d->e_shstrndx = eh32->e_shstrndx;
88 assert(ec == ELFCLASS64);
90 if ((eh64 = _libelf_ehdr(e, ELFCLASS64, 0)) == NULL)
100 return (_libelf_ehdr(e, ELFCLASS32, 1));
104 elf64_newehdr(Elf *e)
106 return (_libelf_ehdr(e, ELFCLASS64, 1));
110 gelf_newehdr(Elf *e, int ec)
113 (ec == ELFCLASS32 || ec == ELFCLASS64))
114 return (_libelf_ehdr(e, ec, 1));
116 LIBELF_SET_ERROR(ARGUMENT, 0);
121 gelf_update_ehdr(Elf *e, GElf_Ehdr *s)
128 if (s== NULL || e == NULL || e->e_kind != ELF_K_ELF ||
129 ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
130 LIBELF_SET_ERROR(ARGUMENT, 0);
134 if (e->e_cmd == ELF_C_READ) {
135 LIBELF_SET_ERROR(MODE, 0);
139 if ((ehdr = _libelf_ehdr(e, ec, 0)) == NULL)
142 (void) elf_flagehdr(e, ELF_C_SET, ELF_F_DIRTY);
144 if (ec == ELFCLASS64) {
145 eh64 = (Elf64_Ehdr *) ehdr;
150 eh32 = (Elf32_Ehdr *) ehdr;
152 (void) memcpy(eh32->e_ident, s->e_ident, sizeof(eh32->e_ident));
154 eh32->e_type = s->e_type;
155 eh32->e_machine = s->e_machine;
156 eh32->e_version = s->e_version;
157 LIBELF_COPY_U32(eh32, s, e_entry);
158 LIBELF_COPY_U32(eh32, s, e_phoff);
159 LIBELF_COPY_U32(eh32, s, e_shoff);
160 eh32->e_flags = s->e_flags;
161 eh32->e_ehsize = s->e_ehsize;
162 eh32->e_phentsize = s->e_phentsize;
163 eh32->e_phnum = s->e_phnum;
164 eh32->e_shentsize = s->e_shentsize;
165 eh32->e_shnum = s->e_shnum;
166 eh32->e_shstrndx = s->e_shstrndx;