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/bfin/elfinterp.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) (limited to 'ldso/ldso/bfin') diff --git a/ldso/ldso/bfin/elfinterp.c b/ldso/ldso/bfin/elfinterp.c index e8d88bd5a..466a3b4c1 100644 --- a/ldso/ldso/bfin/elfinterp.c +++ b/ldso/ldso/bfin/elfinterp.c @@ -65,9 +65,9 @@ _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) got_entry = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, this_reloc->r_offset); /* Get the address to be used to fill in the GOT entry. */ - new_addr = _dl_lookup_hash(symname, tpnt->symbol_scope, NULL, 0, &new_tpnt); + new_addr = _dl_lookup_hash(symname, &_dl_loaded_modules->symbol_scope, NULL, NULL, 0, &new_tpnt); if (!new_addr) { - new_addr = _dl_lookup_hash(symname, NULL, NULL, 0, &new_tpnt); + new_addr = _dl_lookup_hash(symname, NULL, NULL, NULL, 0, &new_tpnt); if (!new_addr) { _dl_dprintf(2, "%s: can't resolve symbol '%s'\n", _dl_progname, symname); @@ -99,9 +99,9 @@ _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, ElfW(Sym) *symtab, char *strtab)) { unsigned int i; @@ -150,7 +150,7 @@ _dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope, } 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, ElfW(Sym) *symtab, char *strtab) { int reloc_type; @@ -166,6 +166,8 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, unsigned long old_val; #endif + struct sym_val current_value = { NULL, NULL }; + reloc_addr = (unsigned long *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset); __asm__ ("" : "=r" (reloc_addr_packed) : "0" (reloc_addr)); reloc_type = ELF_R_TYPE(rpnt->r_info); @@ -179,7 +181,7 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, } else { symbol_addr = (unsigned long) - _dl_lookup_hash(symname, scope, NULL, 0, &symbol_tpnt); + _dl_lookup_hash(symname, scope, NULL, ¤t_value, 0, &symbol_tpnt); /* * We want to allow undefined references to weak symbols - this might @@ -192,6 +194,9 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, _dl_progname, strtab + symtab[symtab_index].st_name); _dl_exit (1); } + if (_dl_trace_prelink) + _dl_debug_lookup (symname, tpnt, &symtab[symtab_index], + ¤t_value, elf_machine_type_class(reloc_type)); } #if defined (__SUPPORT_LD_DEBUG__) @@ -275,7 +280,7 @@ _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 __attribute__((unused)), + struct r_scope_elem *scope __attribute__((unused)), ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute__((unused)), char *strtab __attribute__((unused))) { @@ -321,9 +326,9 @@ _dl_parse_lazy_relocation_information int _dl_parse_relocation_information -(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size) +(struct dyn_elf *rpnt, 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); } /* We don't have copy relocs. */ -- cgit v1.2.3