e8968eb491
the appropriate `dirty' bit needs to be set for both the Elf32 and Elf64 case. Obtained from: elftoolchain MFC after: 1 month
132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/*-
|
|
* Copyright (c) 2006 Joseph Koshy
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/limits.h>
|
|
|
|
#include <assert.h>
|
|
#include <gelf.h>
|
|
#include <libelf.h>
|
|
|
|
#include "_libelf.h"
|
|
|
|
Elf32_Shdr *
|
|
elf32_getshdr(Elf_Scn *s)
|
|
{
|
|
return (_libelf_getshdr(s, ELFCLASS32));
|
|
}
|
|
|
|
Elf64_Shdr *
|
|
elf64_getshdr(Elf_Scn *s)
|
|
{
|
|
return (_libelf_getshdr(s, ELFCLASS64));
|
|
}
|
|
|
|
GElf_Shdr *
|
|
gelf_getshdr(Elf_Scn *s, GElf_Shdr *d)
|
|
{
|
|
int ec;
|
|
void *sh;
|
|
Elf32_Shdr *sh32;
|
|
Elf64_Shdr *sh64;
|
|
|
|
if (d == NULL) {
|
|
LIBELF_SET_ERROR(ARGUMENT, 0);
|
|
return (NULL);
|
|
}
|
|
|
|
if ((sh = _libelf_getshdr(s, ELFCLASSNONE)) == NULL)
|
|
return (NULL);
|
|
|
|
ec = s->s_elf->e_class;
|
|
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
|
|
|
|
if (ec == ELFCLASS32) {
|
|
sh32 = (Elf32_Shdr *) sh;
|
|
|
|
d->sh_name = sh32->sh_name;
|
|
d->sh_type = sh32->sh_type;
|
|
d->sh_flags = (Elf64_Xword) sh32->sh_flags;
|
|
d->sh_addr = (Elf64_Addr) sh32->sh_addr;
|
|
d->sh_offset = (Elf64_Off) sh32->sh_offset;
|
|
d->sh_size = (Elf64_Xword) sh32->sh_size;
|
|
d->sh_link = sh32->sh_link;
|
|
d->sh_info = sh32->sh_info;
|
|
d->sh_addralign = (Elf64_Xword) sh32->sh_addralign;
|
|
d->sh_entsize = (Elf64_Xword) sh32->sh_entsize;
|
|
} else {
|
|
sh64 = (Elf64_Shdr *) sh;
|
|
*d = *sh64;
|
|
}
|
|
|
|
return (d);
|
|
}
|
|
|
|
int
|
|
gelf_update_shdr(Elf_Scn *scn, GElf_Shdr *s)
|
|
{
|
|
int ec;
|
|
Elf *e;
|
|
Elf32_Shdr *sh32;
|
|
|
|
|
|
if (s == NULL || scn == NULL || (e = scn->s_elf) == NULL ||
|
|
e->e_kind != ELF_K_ELF ||
|
|
((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
|
|
LIBELF_SET_ERROR(ARGUMENT, 0);
|
|
return (0);
|
|
}
|
|
|
|
if (e->e_cmd == ELF_C_READ) {
|
|
LIBELF_SET_ERROR(MODE, 0);
|
|
return (0);
|
|
}
|
|
|
|
(void) elf_flagscn(scn, ELF_C_SET, ELF_F_DIRTY);
|
|
|
|
if (ec == ELFCLASS64) {
|
|
scn->s_shdr.s_shdr64 = *s;
|
|
return (1);
|
|
}
|
|
|
|
sh32 = &scn->s_shdr.s_shdr32;
|
|
|
|
sh32->sh_name = s->sh_name;
|
|
sh32->sh_type = s->sh_type;
|
|
LIBELF_COPY_U32(sh32, s, sh_flags);
|
|
LIBELF_COPY_U32(sh32, s, sh_addr);
|
|
LIBELF_COPY_U32(sh32, s, sh_offset);
|
|
LIBELF_COPY_U32(sh32, s, sh_size);
|
|
sh32->sh_link = s->sh_link;
|
|
sh32->sh_info = s->sh_info;
|
|
LIBELF_COPY_U32(sh32, s, sh_addralign);
|
|
LIBELF_COPY_U32(sh32, s, sh_entsize);
|
|
|
|
return (1);
|
|
}
|