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* elf/dynamic-link.h (elf_get_dynamic_info): Take new argument with
	load address.  Relocate d_ptr in DT_DTRTAB, DT_SYMTAB, DT_RELA, DT_REL,
	DT_JMPREL, DT_PLTGOT, and DT_VERSYM l_info entry.
	(_ELF_DYNAMIC_DO_RELOC): Take extra argument which specifies whether
	rel and rela relocations can both happen and skip one test if this
	is not possible.
	(ELF_DYNAMIC_DO_RELA, ELF_DYNAMIC_DO_REL): Call _ELF_DYNAMIC_DO_RELOC
	appropriately.
	* elf/dl-addr.c (_dl_addr): DT_SYMTAB and DT_STRTAB entries are
	already relocated.
	* elf/dl-deps.c (_dl_map_object_deps): DT_STRTAB entry is already
	relocated.
	* elf/dl-load.c (_dl_init_paths): DT_STRTAB entry is already relocated.
	(_dl_map_object_from_fd): Call elf_get_dynamic_info with new argument.
	(_dl_map_object): DT_STRTAB entry is already relocated.
	* elf/dl-lookup.c (do_lookup): DT_STRTAB and DT_SYMTAB entries are
	already relocated.
	* elf/dl-reloc.c (_dl_relocate_object): DT_STRTAB entry is already
	relocated.
	* elf/dl-runtime.c (fixup): DT_SYMTAB, DT_STRTAB, DT_JMPREL, and
	DT_VERSYM entries are already relocated.
	(profile_fixup): Likewise.
	* elf/dl-version.c: Rename VERSTAG macro into VERSYMIDX.  Replace
	all users.
	(match_symbol): DT_STRTAB entry is already relocated.
	(_dl_check_map_versions): Likewise.  Also fo DT_VERSYM.
	* elf/do-rel.h (elf_dynamic_do_rel): reladdr is now assumed to be
	relocated already.  DT_SYMTAB and DT_VERSYM entries are also relocated.
	* elf/rtld.c (_dl_start): Pass extra argument to elf_get_dynamic_info.
	(find_needed): DT_STRTAB entry is already relocated.
	(dl_main): Pass extra argument to elf_get_dynamic_info.
	DT_STRTAB entry is already relocated.
	* sysdeps/alpha/dl-machine.h (elf_machine_fixup_plt): DT_JMPREL and
	DT_PLTGOT entries are already relocated.
	(elf_machine_rela): Likewise for DT_SYMTAB.
	* sysdeps/arm/dl-machine.h (elf_machine_rel): DT_STRTAB is already
	relocated.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise.
	* sysdeps/m68k/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/powerpc/dl-machine.c (__process_machine_rela): Likewise.
	* sysdeps/mips/dl-machine.h (elf_machine_got_rel): Likewise.
	(elf_machine_got_rel): Likewise for DT_SYMTAB and DT_STRTAB.

	* grp/initgroups.c (initgroups): If function in current module was
	successful don't stop but continue to process to get all the groups.
This commit is contained in:
Ulrich Drepper
1999-02-20 15:02:24 +00:00
parent 24d6084042
commit f420344cef
20 changed files with 196 additions and 127 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
elf/dl-runtime.c
View File

@@ -1,5 +1,5 @@
/* On-demand PLT fixup for shared objects.
Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1998, 1999 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
@@ -48,13 +48,11 @@ fixup (
struct link_map *l, ElfW(Word) reloc_offset)
{
const ElfW(Sym) *const symtab
= (const ElfW(Sym) *) (l->l_addr + l->l_info[DT_SYMTAB]->d_un.d_ptr);
const char *strtab =
(const char *) (l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr);
= (const void *) l->l_info[DT_SYMTAB]->d_un.d_ptr;
const char *strtab = (const void *) l->l_info[DT_STRTAB]->d_un.d_ptr;
const PLTREL *const reloc
= (const void *) (l->l_addr + l->l_info[DT_JMPREL]->d_un.d_ptr +
reloc_offset);
= (const void *) (l->l_info[DT_JMPREL]->d_un.d_ptr + reloc_offset);
const ElfW(Sym) *sym = &symtab[ELFW(R_SYM) (reloc->r_info)];
void *const rel_addr = (void *)(l->l_addr + reloc->r_offset);
ElfW(Addr) value;
@@ -67,8 +65,8 @@ fixup (
{
default:
{
const ElfW(Half) *vernum = (const ElfW(Half) *)
(l->l_addr + l->l_info[VERSYMIDX (DT_VERSYM)]->d_un.d_ptr);
const ElfW(Half) *vernum =
(const void *) l->l_info[VERSYMIDX (DT_VERSYM)]->d_un.d_ptr;
ElfW(Half) ndx = vernum[ELFW(R_SYM) (reloc->r_info)];
const struct r_found_version *version = &l->l_versions[ndx];
@@ -121,13 +119,11 @@ profile_fixup (
{
/* This is the first time we have to relocate this object. */
const ElfW(Sym) *const symtab
= (const ElfW(Sym) *) (l->l_addr + l->l_info[DT_SYMTAB]->d_un.d_ptr);
const char *strtab =
(const char *) (l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr);
= (const void *) l->l_info[DT_SYMTAB]->d_un.d_ptr;
const char *strtab = (const void *) l->l_info[DT_STRTAB]->d_un.d_ptr;
const PLTREL *const reloc
= (const void *) (l->l_addr + l->l_info[DT_JMPREL]->d_un.d_ptr +
reloc_offset);
= (const void *) (l->l_info[DT_JMPREL]->d_un.d_ptr + reloc_offset);
const ElfW(Sym) *sym = &symtab[ELFW(R_SYM) (reloc->r_info)];
/* Sanity check that we're really looking at a PLT relocation. */
@@ -138,8 +134,8 @@ profile_fixup (
{
default:
{
const ElfW(Half) *vernum = (const ElfW(Half) *)
(l->l_addr + l->l_info[VERSYMIDX (DT_VERSYM)]->d_un.d_ptr);
const ElfW(Half) *vernum =
(const void *) l->l_info[VERSYMIDX (DT_VERSYM)]->d_un.d_ptr;
ElfW(Half) ndx = vernum[ELFW(R_SYM) (reloc->r_info)];
const struct r_found_version *version = &l->l_versions[ndx];