323 static void *sym_get_data_by_offset(const struct elf_info *info,  in sym_get_data_by_offset()  argument
326 	Elf_Shdr *sechdr = &info->sechdrs[secindex];  in sym_get_data_by_offset()
328 	if (info->hdr->e_type != ET_REL)  in sym_get_data_by_offset()
331 	return (void *)info->hdr + sechdr->sh_offset + offset;  in sym_get_data_by_offset()
334 static void *sym_get_data(const struct elf_info *info, const Elf_Sym *sym)  in sym_get_data()  argument
336 	return sym_get_data_by_offset(info, get_secindex(info, sym),  in sym_get_data()
340 static const char *sech_name(const struct elf_info *info, Elf_Shdr *sechdr)  in sech_name()  argument
342 	return sym_get_data_by_offset(info, info->secindex_strings,  in sech_name()
346 static const char *sec_name(const struct elf_info *info, int secindex)  in sec_name()  argument
348 	return sech_name(info, &info->sechdrs[secindex]);  in sec_name()
387 static const char *namespace_from_kstrtabns(const struct elf_info *info,  in namespace_from_kstrtabns()  argument
390 	const char *value = sym_get_data(info, sym);  in namespace_from_kstrtabns()
478 static int parse_elf(struct elf_info *info, const char *filename)  in parse_elf()  argument
487 	hdr = grab_file(filename, &info->size);  in parse_elf()
497 	info->hdr = hdr;  in parse_elf()
498 	if (info->size < sizeof(*hdr)) {  in parse_elf()
525 	info->sechdrs = sechdrs;  in parse_elf()
528 	if (hdr->e_shoff > info->size) {  in parse_elf()
530 		      (unsigned long)hdr->e_shoff, filename, info->size);  in parse_elf()
539 		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);  in parse_elf()
542 		info->num_sections = hdr->e_shnum;  in parse_elf()
545 		info->secindex_strings = TO_NATIVE(sechdrs[0].sh_link);  in parse_elf()
548 		info->secindex_strings = hdr->e_shstrndx;  in parse_elf()
552 	for (i = 0; i < info->num_sections; i++) {  in parse_elf()
565 	secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;  in parse_elf()
566 	for (i = 1; i < info->num_sections; i++) {  in parse_elf()
570 		if (!nobits && sechdrs[i].sh_offset > info->size) {  in parse_elf()
581 			info->modinfo = (void *)hdr + sechdrs[i].sh_offset;  in parse_elf()
582 			info->modinfo_len = sechdrs[i].sh_size;  in parse_elf()
584 			info->export_sec = i;  in parse_elf()
586 			info->export_unused_sec = i;  in parse_elf()
588 			info->export_gpl_sec = i;  in parse_elf()
590 			info->export_unused_gpl_sec = i;  in parse_elf()
592 			info->export_gpl_future_sec = i;  in parse_elf()
597 			info->symtab_start = (void *)hdr +  in parse_elf()
599 			info->symtab_stop  = (void *)hdr +  in parse_elf()
602 			info->strtab       = (void *)hdr +  in parse_elf()
609 			info->symtab_shndx_start = (void *)hdr +  in parse_elf()
611 			info->symtab_shndx_stop  = (void *)hdr +  in parse_elf()
615 	if (!info->symtab_start)  in parse_elf()
619 	for (sym = info->symtab_start; sym < info->symtab_stop; sym++) {  in parse_elf()
633 		for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop;  in parse_elf()
641 static void parse_elf_finish(struct elf_info *info)  in parse_elf_finish()  argument
643 	release_file(info->hdr, info->size);  in parse_elf_finish()
646 static int ignore_undef_symbol(struct elf_info *info, const char *symname)  in ignore_undef_symbol()  argument
654 	if (info->hdr->e_machine == EM_PPC)  in ignore_undef_symbol()
663 	if (info->hdr->e_machine == EM_PPC64)  in ignore_undef_symbol()
676 			      const struct elf_info *info,  in handle_modversion()  argument
693 		crcp = sym_get_data(info, sym);  in handle_modversion()
699 static void handle_symbol(struct module *mod, struct elf_info *info,  in handle_symbol()  argument
706 		export = export_from_secname(info, get_secindex(info, sym));  in handle_symbol()
708 		export = export_from_sec(info, get_secindex(info, sym));  in handle_symbol()
722 		if (ignore_undef_symbol(info, symname))  in handle_symbol()
724 		if (info->hdr->e_machine == EM_SPARC ||  in handle_symbol()
725 		    info->hdr->e_machine == EM_SPARCV9) {  in handle_symbol()
776 static char *get_next_modinfo(struct elf_info *info, const char *tag,  in get_next_modinfo()  argument
781 	char *modinfo = info->modinfo;  in get_next_modinfo()
782 	unsigned long size = info->modinfo_len;  in get_next_modinfo()
796 static char *get_modinfo(struct elf_info *info, const char *tag)  in get_modinfo()  argument
799 	return get_next_modinfo(info, tag, NULL);  in get_modinfo()
2017 	struct elf_info info = { };  in read_symbols()  local
2020 	if (!parse_elf(&info, modname))  in read_symbols()
2037 		license = get_modinfo(&info, "license");  in read_symbols()
2047 			license = get_next_modinfo(&info, "license", license);  in read_symbols()
2050 		namespace = get_modinfo(&info, "import_ns");  in read_symbols()
2053 			namespace = get_next_modinfo(&info, "import_ns",  in read_symbols()
2058 	for (sym = info.symtab_start; sym < info.symtab_stop; sym++) {  in read_symbols()
2059 		symname = remove_dot(info.strtab + sym->st_name);  in read_symbols()
2061 		handle_symbol(mod, &info, sym, symname);  in read_symbols()
2062 		handle_moddevtable(mod, &info, sym, symname);  in read_symbols()
2065 	for (sym = info.symtab_start; sym < info.symtab_stop; sym++) {  in read_symbols()
2066 		symname = remove_dot(info.strtab + sym->st_name);  in read_symbols()
2071 					     namespace_from_kstrtabns(&info,  in read_symbols()
2075 			handle_modversion(mod, &info, sym,  in read_symbols()
2080 	for (sym = info.symtab_start; sym < info.symtab_stop; sym++) {  in read_symbols()
2085 				find_symbol(remove_dot(info.strtab +  in read_symbols()
2093 	check_sec_ref(mod, modname, &info);  in read_symbols()
2096 		version = get_modinfo(&info, "version");  in read_symbols()
2102 	parse_elf_finish(&info);  in read_symbols()