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
36 elf32_getshdr(Elf_Scn
*s
)
38 return (_libelf_getshdr(s
, ELFCLASS32
));
42 elf64_getshdr(Elf_Scn
*s
)
44 return (_libelf_getshdr(s
, ELFCLASS64
));
48 gelf_getshdr(Elf_Scn
*s
, GElf_Shdr
*d
)
56 LIBELF_SET_ERROR(ARGUMENT
, 0);
60 if ((sh
= _libelf_getshdr(s
, ELFCLASSNONE
)) == NULL
)
63 ec
= s
->s_elf
->e_class
;
64 assert(ec
== ELFCLASS32
|| ec
== ELFCLASS64
);
66 if (ec
== ELFCLASS32
) {
67 sh32
= (Elf32_Shdr
*) sh
;
69 d
->sh_name
= sh32
->sh_name
;
70 d
->sh_type
= sh32
->sh_type
;
71 d
->sh_flags
= (Elf64_Xword
) sh32
->sh_flags
;
72 d
->sh_addr
= (Elf64_Addr
) sh32
->sh_addr
;
73 d
->sh_offset
= (Elf64_Off
) sh32
->sh_offset
;
74 d
->sh_size
= (Elf64_Xword
) sh32
->sh_size
;
75 d
->sh_link
= sh32
->sh_link
;
76 d
->sh_info
= sh32
->sh_info
;
77 d
->sh_addralign
= (Elf64_Xword
) sh32
->sh_addralign
;
78 d
->sh_entsize
= (Elf64_Xword
) sh32
->sh_entsize
;
80 sh64
= (Elf64_Shdr
*) sh
;
88 gelf_update_shdr(Elf_Scn
*scn
, GElf_Shdr
*s
)
95 if (s
== NULL
|| scn
== NULL
|| (e
= scn
->s_elf
) == NULL
||
96 e
->e_kind
!= ELF_K_ELF
||
97 ((ec
= e
->e_class
) != ELFCLASS32
&& ec
!= ELFCLASS64
)) {
98 LIBELF_SET_ERROR(ARGUMENT
, 0);
102 if (e
->e_cmd
== ELF_C_READ
) {
103 LIBELF_SET_ERROR(MODE
, 0);
107 if (ec
== ELFCLASS64
) {
108 scn
->s_shdr
.s_shdr64
= *s
;
112 sh32
= &scn
->s_shdr
.s_shdr32
;
114 sh32
->sh_name
= s
->sh_name
;
115 sh32
->sh_type
= s
->sh_type
;
116 LIBELF_COPY_U32(sh32
, s
, sh_flags
);
117 LIBELF_COPY_U32(sh32
, s
, sh_addr
);
118 LIBELF_COPY_U32(sh32
, s
, sh_offset
);
119 LIBELF_COPY_U32(sh32
, s
, sh_size
);
120 sh32
->sh_link
= s
->sh_link
;
121 sh32
->sh_info
= s
->sh_info
;
122 LIBELF_COPY_U32(sh32
, s
, sh_addralign
);
123 LIBELF_COPY_U32(sh32
, s
, sh_entsize
);
125 (void) elf_flagscn(scn
, ELF_C_SET
, ELF_F_DIRTY
);