X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fi386%2Fkernel%2Fmodule.c;h=2c6e3bed56616afcdcad3b841c03f4112145c07f;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=5149c8a621f03b7e80659addbb54e6a685763699;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/arch/i386/kernel/module.c b/arch/i386/kernel/module.c index 5149c8a62..2c6e3bed5 100644 --- a/arch/i386/kernel/module.c +++ b/arch/i386/kernel/module.c @@ -104,26 +104,42 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, return -ENOEXEC; } -extern void apply_alternatives(void *start, void *end); - int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me) { - const Elf_Shdr *s; + const Elf_Shdr *s, *text = NULL, *alt = NULL, *locks = NULL; char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; - /* look for .altinstructions to patch */ for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { - void *seg; - if (strcmp(".altinstructions", secstrings + s->sh_name)) - continue; - seg = (void *)s->sh_addr; - apply_alternatives(seg, seg + s->sh_size); - } + if (!strcmp(".text", secstrings + s->sh_name)) + text = s; + if (!strcmp(".altinstructions", secstrings + s->sh_name)) + alt = s; + if (!strcmp(".smp_locks", secstrings + s->sh_name)) + locks= s; + } + + if (alt) { + /* patch .altinstructions */ + void *aseg = (void *)alt->sh_addr; + apply_alternatives(aseg, aseg + alt->sh_size); + } +#ifdef CONFIG_SMP + if (locks && text) { + void *lseg = (void *)locks->sh_addr; + void *tseg = (void *)text->sh_addr; + alternatives_smp_module_add(me, me->name, + lseg, lseg + locks->sh_size, + tseg, tseg + text->sh_size); + } +#endif return 0; } void module_arch_cleanup(struct module *mod) { +#ifdef CONFIG_SMP + alternatives_smp_module_del(mod); +#endif }