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/cris/elfinterp.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) (limited to 'ldso/ldso/cris') diff --git a/ldso/ldso/cris/elfinterp.c b/ldso/ldso/cris/elfinterp.c index 32ea2da9e..48802aa7c 100644 --- a/ldso/ldso/cris/elfinterp.c +++ b/ldso/ldso/cris/elfinterp.c @@ -66,7 +66,7 @@ _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); _dl_exit(1); @@ -91,9 +91,9 @@ _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, Elf32_Sym *symtab, char *strtab)) { int symtab_index; @@ -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, Elf32_Sym *symtab, char *strtab) { int reloc_type; @@ -162,6 +162,8 @@ _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 *)(intptr_t)(tpnt->loadaddr + (unsigned long)rpnt->r_offset); reloc_type = ELF32_R_TYPE(rpnt->r_info); symtab_index = ELF32_R_SYM(rpnt->r_info); @@ -174,15 +176,17 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct dyn_elf *scope, symbol_addr = (unsigned long)tpnt->loadaddr; } else { symbol_addr = (unsigned long)_dl_find_hash(symname, scope, tpnt, - elf_machine_type_class(reloc_type), NULL); + ¤t_value, elf_machine_type_class(reloc_type), NULL); } if (unlikely(!symbol_addr && ELF32_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK)) { _dl_dprintf(2, "%s: can't resolve symbol '%s'\n", _dl_progname, symname); _dl_exit(1); } - symbol_addr += rpnt->r_addend; + 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__) @@ -227,7 +231,7 @@ _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; @@ -279,8 +283,9 @@ _dl_parse_lazy_relocation_information(struct dyn_elf *rpnt, int _dl_parse_relocation_information(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); } -- cgit v1.2.3