From 4ec89b87bc0eea8d9ca6b50564d12eeb3b1b0119 Mon Sep 17 00:00:00 2001 From: Filippo Arcidiacono Date: Mon, 11 Oct 2010 12:56:21 +0200 Subject: ldso: Extend prelink support for all other achitectures Update Arch specific part of the dynamic linker to the latest cahnges required by prelink: - Use _dl_loaded_modules->scope as global symbol scope - Pass the sym argument (or NULL) to the _dl_find_hash - Update _dl_parse, _dl_do_reloc, _dl_do_lazy_reloc and _dl_parse_relocation_information to reflect the change of the scope argument's type - Add the call to _dl_debug_lookup used for trace prelinking. Signed-off-by: Filippo Arcidiacono Signed-off-by: Carmelo Amoroso --- ldso/ldso/arm/elfinterp.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) (limited to 'ldso/ldso/arm') diff --git a/ldso/ldso/arm/elfinterp.c b/ldso/ldso/arm/elfinterp.c index adc282a57..ee2d1e559 100644 --- a/ldso/ldso/arm/elfinterp.c +++ b/ldso/ldso/arm/elfinterp.c @@ -69,8 +69,8 @@ unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry) got_addr = (char **) instr_addr; /* Get the address of the GOT entry */ - new_addr = _dl_find_hash(symname, tpnt->symbol_scope, - tpnt, ELF_RTYPE_CLASS_PLT, NULL); + new_addr = _dl_find_hash(symname, &_dl_loaded_modules->symbol_scope, + tpnt, NULL, ELF_RTYPE_CLASS_PLT, NULL); if (unlikely(!new_addr)) { _dl_dprintf(2, "%s: can't resolve symbol '%s'\n", _dl_progname, symname); @@ -99,9 +99,9 @@ unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry) } static int -_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope, +_dl_parse(struct elf_resolve *tpnt, struct r_scope_elem *scope, unsigned long rel_addr, unsigned long rel_size, - int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope, + int (*reloc_fnc) (struct elf_resolve *tpnt, struct r_scope_elem *scope, ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab)) { int i; @@ -181,7 +181,7 @@ fix_bad_pc24 (unsigned long *const reloc_addr, unsigned long value) #endif static int -_dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, +_dl_do_reloc (struct elf_resolve *tpnt,struct r_scope_elem *scope, ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab) { int reloc_type; @@ -192,6 +192,8 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, struct elf_resolve *def_mod = 0; int goof = 0; + struct sym_val current_value = { NULL, NULL }; + reloc_addr = (unsigned long *) (tpnt->loadaddr + (unsigned long) rpnt->r_offset); reloc_type = ELF32_R_TYPE(rpnt->r_info); @@ -202,7 +204,7 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, (ELF32_ST_VISIBILITY(symtab[symtab_index].st_other) != STV_PROTECTED)) { symbol_addr = _dl_find_hash(strtab + symtab[symtab_index].st_name, - scope, tpnt, elf_machine_type_class(reloc_type), &def_mod); + scope, tpnt, ¤t_value, elf_machine_type_class(reloc_type), &def_mod); /* * We want to allow undefined references to weak symbols - this might @@ -215,6 +217,9 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, return 1; } + if (_dl_trace_prelink) + _dl_debug_lookup (symname, tpnt, &symtab[symtab_index], + ¤t_value, elf_machine_type_class(reloc_type)); } else { /* * Relocs against STN_UNDEF are usually treated as using a @@ -311,7 +316,7 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, } static int -_dl_do_lazy_reloc (struct elf_resolve *tpnt, struct dyn_elf *scope, +_dl_do_lazy_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab) { int reloc_type; @@ -350,8 +355,8 @@ void _dl_parse_lazy_relocation_information(struct dyn_elf *rpnt, } int _dl_parse_relocation_information(struct dyn_elf *rpnt, - unsigned long rel_addr, unsigned long rel_size) + struct r_scope_elem *scope, unsigned long rel_addr, unsigned long rel_size) { - return _dl_parse(rpnt->dyn, rpnt->dyn->symbol_scope, rel_addr, rel_size, _dl_do_reloc); + return _dl_parse(rpnt->dyn, scope, rel_addr, rel_size, _dl_do_reloc); } -- cgit v1.2.3