2 * Copyright (c) 2006 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
39 return (_libelf_ehdr(e
, ELFCLASS32
, 0));
45 return (_libelf_ehdr(e
, ELFCLASS64
, 0));
49 gelf_getehdr(Elf
*e
, GElf_Ehdr
*d
)
55 if (d
== NULL
|| e
== NULL
||
56 ((ec
= e
->e_class
) != ELFCLASS32
&& ec
!= ELFCLASS64
)) {
57 LIBELF_SET_ERROR(ARGUMENT
, 0);
61 if (ec
== ELFCLASS32
) {
62 if ((eh32
= _libelf_ehdr(e
, ELFCLASS32
, 0)) == NULL
)
65 (void) memcpy(d
->e_ident
, eh32
->e_ident
, sizeof(eh32
->e_ident
));
66 d
->e_type
= eh32
->e_type
;
67 d
->e_machine
= eh32
->e_machine
;
68 d
->e_version
= eh32
->e_version
;
69 d
->e_entry
= eh32
->e_entry
;
70 d
->e_phoff
= eh32
->e_phoff
;
71 d
->e_shoff
= eh32
->e_shoff
;
72 d
->e_flags
= eh32
->e_flags
;
73 d
->e_ehsize
= eh32
->e_ehsize
;
74 d
->e_phentsize
= eh32
->e_phentsize
;
75 d
->e_phnum
= eh32
->e_phnum
;
76 d
->e_shentsize
= eh32
->e_shentsize
;
77 d
->e_shnum
= eh32
->e_shnum
;
78 d
->e_shstrndx
= eh32
->e_shstrndx
;
83 assert(ec
== ELFCLASS64
);
85 if ((eh64
= _libelf_ehdr(e
, ELFCLASS64
, 0)) == NULL
)
95 return (_libelf_ehdr(e
, ELFCLASS32
, 1));
101 return (_libelf_ehdr(e
, ELFCLASS64
, 1));
105 gelf_newehdr(Elf
*e
, int ec
)
108 (ec
== ELFCLASS32
|| ec
== ELFCLASS64
))
109 return (_libelf_ehdr(e
, ec
, 1));
111 LIBELF_SET_ERROR(ARGUMENT
, 0);
116 gelf_update_ehdr(Elf
*e
, GElf_Ehdr
*s
)
123 if (s
== NULL
|| e
== NULL
|| e
->e_kind
!= ELF_K_ELF
||
124 ((ec
= e
->e_class
) != ELFCLASS32
&& ec
!= ELFCLASS64
)) {
125 LIBELF_SET_ERROR(ARGUMENT
, 0);
129 if (e
->e_cmd
== ELF_C_READ
) {
130 LIBELF_SET_ERROR(MODE
, 0);
134 if ((ehdr
= _libelf_ehdr(e
, ec
, 0)) == NULL
)
137 if (ec
== ELFCLASS64
) {
138 eh64
= (Elf64_Ehdr
*) ehdr
;
143 eh32
= (Elf32_Ehdr
*) ehdr
;
145 (void) memcpy(eh32
->e_ident
, s
->e_ident
, sizeof(eh32
->e_ident
));
147 eh32
->e_type
= s
->e_type
;
148 eh32
->e_machine
= s
->e_machine
;
149 eh32
->e_version
= s
->e_version
;
150 LIBELF_COPY_U32(eh32
, s
, e_entry
);
151 LIBELF_COPY_U32(eh32
, s
, e_phoff
);
152 LIBELF_COPY_U32(eh32
, s
, e_shoff
);
153 eh32
->e_flags
= s
->e_flags
;
154 eh32
->e_ehsize
= s
->e_ehsize
;
155 eh32
->e_phentsize
= s
->e_phentsize
;
156 eh32
->e_phnum
= s
->e_phnum
;
157 eh32
->e_shentsize
= s
->e_shentsize
;
158 eh32
->e_shnum
= s
->e_shnum
;
159 eh32
->e_shstrndx
= s
->e_shstrndx
;
161 (void) elf_flagehdr(e
, ELF_C_SET
, ELF_F_DIRTY
);