mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-24 11:41:07 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/* Do relocations for ELF dynamic linking.
|
|
Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/* This file may be included twice, to define both
|
|
`elf_dynamic_do_rel' and `elf_dynamic_do_rela'. */
|
|
|
|
#ifdef DO_RELA
|
|
# define elf_dynamic_do_rel elf_dynamic_do_rela
|
|
# define Rel Rela
|
|
# define elf_machine_rel elf_machine_rela
|
|
#endif
|
|
|
|
#ifndef VERSYMIDX
|
|
# define VERSYMIDX(sym) (DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGIDX (sym))
|
|
#endif
|
|
|
|
/* Perform the relocations in MAP on the running program image as specified
|
|
by RELTAG, SZTAG. If LAZY is nonzero, this is the first pass on PLT
|
|
relocations; they should be set up to call _dl_runtime_resolve, rather
|
|
than fully resolved now. */
|
|
|
|
static inline void
|
|
elf_dynamic_do_rel (struct link_map *map,
|
|
ElfW(Addr) reladdr, ElfW(Addr) relsize,
|
|
int lazy)
|
|
{
|
|
const ElfW(Rel) *r = (const void *) reladdr;
|
|
const ElfW(Rel) *end = (const void *) (reladdr + relsize);
|
|
|
|
if (lazy)
|
|
{
|
|
/* Doing lazy PLT relocations; they need very little info. */
|
|
ElfW(Addr) l_addr = map->l_addr;
|
|
for (; r < end; ++r)
|
|
elf_machine_lazy_rel (map, l_addr, r);
|
|
}
|
|
else
|
|
{
|
|
const ElfW(Sym) *const symtab =
|
|
(const void *) D_PTR (map, l_info[DT_SYMTAB]);
|
|
|
|
if (map->l_info[VERSYMIDX (DT_VERSYM)])
|
|
{
|
|
const ElfW(Half) *const version =
|
|
(const void *) D_PTR (map, l_info[VERSYMIDX (DT_VERSYM)]);
|
|
|
|
for (; r < end; ++r)
|
|
{
|
|
ElfW(Half) ndx = version[ELFW(R_SYM) (r->r_info)];
|
|
elf_machine_rel (map, r, &symtab[ELFW(R_SYM) (r->r_info)],
|
|
&map->l_versions[ndx],
|
|
(void *) (map->l_addr + r->r_offset));
|
|
}
|
|
}
|
|
else
|
|
for (; r < end; ++r)
|
|
elf_machine_rel (map, r, &symtab[ELFW(R_SYM) (r->r_info)], NULL,
|
|
(void *) (map->l_addr + r->r_offset));
|
|
}
|
|
}
|
|
|
|
#undef elf_dynamic_do_rel
|
|
#undef Rel
|
|
#undef elf_machine_rel
|