avrdude/external/libelf/src/newdata.c

57 lines
1.5 KiB
C

/*
newdata.c - implementation of the elf_newdata(3) function.
Copyright (C) 1995 - 2000 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: newdata.c,v 1.10 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
Elf_Data*
elf_newdata(Elf_Scn *scn) {
Scn_Data *sd;
if (!scn) {
return NULL;
}
elf_assert(scn->s_magic == SCN_MAGIC);
if (scn->s_index == SHN_UNDEF) {
seterr(ERROR_NULLSCN);
}
else if (!(sd = (Scn_Data*)malloc(sizeof(*sd)))) {
seterr(ERROR_MEM_SCNDATA);
}
else {
*sd = _elf_data_init;
sd->sd_scn = scn;
sd->sd_data_flags = ELF_F_DIRTY;
sd->sd_freeme = 1;
sd->sd_data.d_version = _elf_version;
if (scn->s_data_n) {
scn->s_data_n->sd_link = sd;
}
else {
scn->s_data_1 = sd;
}
scn->s_data_n = sd;
return &sd->sd_data;
}
return NULL;
}