mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
b0982c4ad3
* include/elf.h: Include also <dl-dtprocnum.h>. * elf/dl-deps.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-runtime.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-rel.h: Likewise. * elf/dynamic-link.h: Likewise. * elf/link.h: Likewise. * elf/rtld.c: Likewise. * sysdeps/generic/dl-dtprocnum.h: New file. * sysdeps/ia64/dl-dtprocnum.h: New file. * sysdeps/mips/dl-dtprocnum.h: New file. * sysdeps/sparc/dl-dtprocnum.h: New file.
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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. 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
|