You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.8 KiB
63 lines
1.8 KiB
/* Returns the file name and build ID stored in the .gnu_altdebuglink if found.
|
|
Copyright (C) 2014 Red Hat, Inc.
|
|
This file is part of elfutils.
|
|
|
|
This file is free software; you can redistribute it and/or modify
|
|
it under the terms of either
|
|
|
|
* the GNU Lesser General Public License as published by the Free
|
|
Software Foundation; either version 3 of the License, or (at
|
|
your option) any later version
|
|
|
|
or
|
|
|
|
* the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2 of the License, or (at
|
|
your option) any later version
|
|
|
|
or both in parallel, as here.
|
|
|
|
elfutils is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received copies of the GNU General Public License and
|
|
the GNU Lesser General Public License along with this program. If
|
|
not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include "libdwelfP.h"
|
|
|
|
ssize_t
|
|
dwelf_dwarf_gnu_debugaltlink (Dwarf *dwarf,
|
|
const char **name_p,
|
|
const void **build_idp)
|
|
{
|
|
Elf_Data *data = dwarf->sectiondata[IDX_gnu_debugaltlink];
|
|
if (data == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
const void *ptr = memchr (data->d_buf, '\0', data->d_size);
|
|
if (ptr == NULL)
|
|
{
|
|
__libdw_seterrno (DWARF_E_INVALID_ELF);
|
|
return -1;
|
|
}
|
|
size_t build_id_len = data->d_size - (ptr - data->d_buf + 1);
|
|
if (build_id_len == 0 || (size_t) (ssize_t) build_id_len != build_id_len)
|
|
{
|
|
__libdw_seterrno (DWARF_E_INVALID_ELF);
|
|
return -1;
|
|
}
|
|
*name_p = data->d_buf;
|
|
*build_idp = ptr + 1;
|
|
return build_id_len;
|
|
}
|
|
INTDEF(dwelf_dwarf_gnu_debugaltlink)
|