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1f2a1df36b
2001-08-24 Jakub Jelinek <jakub@redhat.com> * elf/do-rel.h (elf_machine_rel_relative): Define for rela if necessary. Undefine newly defined macros at the end. * sysdeps/hppa/dl-machine.h (elf_machine_rela_relative): Rename from elf_machine_rel_relative. * sysdeps/cris/dl-machine.h (elf_machine_rela_relative): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_rela_relative): Likewise. * sysdeps/powerpc/dl-machine.h (elf_machine_rela_relative): Likewise. * sysdeps/ia64/dl-machine.h (elf_machine_rela_relative): Likewise. Fix argument types. * sysdeps/alpha/dl-machine.h (elf_machine_rela_relative): Likewise. Fix argument types. * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela_relative): Likewise. Fix argument types. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela_relative): Likewise. Fix argument types. * sysdeps/sh/dl-machine.h (elf_machine_rela_relative): Likewise. Fix argument types. * sysdeps/mips/dl-machine.h (elf_machine_rel_relative): Use ElfW(Rel) in argument. * sysdeps/mips/mips64/dl-machine.h (elf_machine_rel_relative): New function.
104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
/* Do relocations for ELF dynamic linking.
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Copyright (C) 1995,96,97,98,99,2000,2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* This file may be included twice, to define both
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`elf_dynamic_do_rel' and `elf_dynamic_do_rela'. */
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#ifdef DO_RELA
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# define elf_dynamic_do_rel elf_dynamic_do_rela
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# define RELCOUNT_IDX VERSYMIDX (DT_RELACOUNT)
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# define Rel Rela
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# define elf_machine_rel elf_machine_rela
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# define elf_machine_rel_relative elf_machine_rela_relative
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#else
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# define RELCOUNT_IDX VERSYMIDX (DT_RELCOUNT)
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#endif
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#ifndef VERSYMIDX
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# define VERSYMIDX(sym) (DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGIDX (sym))
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#endif
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/* Perform the relocations in MAP on the running program image as specified
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by RELTAG, SZTAG. If LAZY is nonzero, this is the first pass on PLT
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relocations; they should be set up to call _dl_runtime_resolve, rather
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than fully resolved now. */
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static inline void
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elf_dynamic_do_rel (struct link_map *map,
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ElfW(Addr) reladdr, ElfW(Addr) relsize,
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int lazy)
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{
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const ElfW(Rel) *r = (const void *) reladdr;
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const ElfW(Rel) *end = (const void *) (reladdr + relsize);
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ElfW(Addr) l_addr = map->l_addr;
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if (lazy)
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{
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/* Doing lazy PLT relocations; they need very little info. */
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for (; r < end; ++r)
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elf_machine_lazy_rel (map, l_addr, r);
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}
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else
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{
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const ElfW(Sym) *const symtab =
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(const void *) D_PTR (map, l_info[DT_SYMTAB]);
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ElfW(Word) nrelative = (map->l_info[RELCOUNT_IDX] == NULL
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? 0 : map->l_info[RELCOUNT_IDX]->d_un.d_val);
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const ElfW(Rel) *endrel = r + nrelative;
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#ifndef RTLD_BOOTSTRAP
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/* This is defined in rtld.c, but nowhere in the static libc.a; make
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the reference weak so static programs can still link. This
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declaration cannot be done when compiling rtld.c (i.e. #ifdef
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RTLD_BOOTSTRAP) because rtld.c contains the common defn for
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_dl_rtld_map, which is incompatible with a weak decl in the same
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file. */
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weak_extern (_dl_rtld_map);
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if (map != &_dl_rtld_map) /* Already done in rtld itself. */
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#endif
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for (; r < endrel; ++r)
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elf_machine_rel_relative (l_addr, r,
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(void *) (l_addr + r->r_offset));
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if (map->l_info[VERSYMIDX (DT_VERSYM)])
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{
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const ElfW(Half) *const version =
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(const void *) D_PTR (map, l_info[VERSYMIDX (DT_VERSYM)]);
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for (; r < end; ++r)
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{
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ElfW(Half) ndx = version[ELFW(R_SYM) (r->r_info)];
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elf_machine_rel (map, r, &symtab[ELFW(R_SYM) (r->r_info)],
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&map->l_versions[ndx],
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(void *) (l_addr + r->r_offset));
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}
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}
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else
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for (; r < end; ++r)
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elf_machine_rel (map, r, &symtab[ELFW(R_SYM) (r->r_info)], NULL,
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(void *) (l_addr + r->r_offset));
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}
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}
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#undef elf_dynamic_do_rel
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#undef Rel
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#undef elf_machine_rel
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#undef elf_machine_rel_relative
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#undef RELCOUNT_IDX
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