711 static const char *sym_name(struct elf_info *elf, Elf_Sym *sym)  in sym_name()  argument
713 	return sym ? elf->strtab + sym->st_name : "";  in sym_name()
771 static void check_section(const char *modname, struct elf_info *elf,  in check_section()  argument
774 	const char *sec = sech_name(elf, sechdr);  in check_section()
987 static Elf_Sym *find_fromsym(struct elf_info *elf, Elf_Addr addr,  in find_fromsym()  argument
990 	return symsearch_find_nearest(elf, addr, secndx, false, ~0);  in find_fromsym()
993 static Elf_Sym *find_tosym(struct elf_info *elf, Elf_Addr addr, Elf_Sym *sym)  in find_tosym()  argument
998 	if (is_valid_name(elf, sym))  in find_tosym()
1005 	new_sym = symsearch_find_nearest(elf, addr, get_secindex(elf, sym),  in find_tosym()
1010 static bool is_executable_section(struct elf_info *elf, unsigned int secndx)  in is_executable_section()  argument
1012 	if (secndx >= elf->num_sections)  in is_executable_section()
1015 	return (elf->sechdrs[secndx].sh_flags & SHF_EXECINSTR) != 0;  in is_executable_section()
1018 static void default_mismatch_handler(const char *modname, struct elf_info *elf,  in default_mismatch_handler()  argument
1029 	from = find_fromsym(elf, faddr, fsecndx);  in default_mismatch_handler()
1030 	fromsym = sym_name(elf, from);  in default_mismatch_handler()
1032 	tsym = find_tosym(elf, taddr, tsym);  in default_mismatch_handler()
1033 	tosym = sym_name(elf, tsym);  in default_mismatch_handler()
1061 		else if (is_executable_section(elf, get_secindex(elf, tsym)))  in default_mismatch_handler()
1076 static void check_export_symbol(struct module *mod, struct elf_info *elf,  in check_export_symbol()  argument
1086 	label = find_fromsym(elf, faddr, elf->export_symbol_secndx);  in check_export_symbol()
1087 	label_name = sym_name(elf, label);  in check_export_symbol()
1102 	name = sym_name(elf, sym);  in check_export_symbol()
1109 	data = sym_get_data(elf, label);	/* license */  in check_export_symbol()
1133 	if (elf->hdr->e_ident[EI_CLASS] == ELFCLASS64 &&  in check_export_symbol()
1134 	    elf->hdr->e_machine == EM_PARISC &&  in check_export_symbol()
1146 static void check_section_mismatch(struct module *mod, struct elf_info *elf,  in check_section_mismatch()  argument
1151 	const char *tosec = sec_name(elf, get_secindex(elf, sym));  in check_section_mismatch()
1154 	if (module_enabled && elf->export_symbol_secndx == fsecndx) {  in check_section_mismatch()
1155 		check_export_symbol(mod, elf, faddr, tosec, sym);  in check_section_mismatch()
1163 	default_mismatch_handler(mod->name, elf, mismatch, sym,  in check_section_mismatch()
1311 static void get_rel_type_and_sym(struct elf_info *elf, uint64_t r_info,  in get_rel_type_and_sym()  argument
1322 	bool is_64bit = (elf->hdr->e_ident[EI_CLASS] == ELFCLASS64);  in get_rel_type_and_sym()
1324 	if (elf->hdr->e_machine == EM_MIPS && is_64bit) {  in get_rel_type_and_sym()
1341 static void section_rela(struct module *mod, struct elf_info *elf,  in section_rela()  argument
1353 		get_rel_type_and_sym(elf, rela->r_info, &r_type, &r_sym);  in section_rela()
1355 		tsym = elf->symtab_start + r_sym;  in section_rela()
1358 		switch (elf->hdr->e_machine) {  in section_rela()
1378 		check_section_mismatch(mod, elf, tsym,  in section_rela()
1383 static void section_rel(struct module *mod, struct elf_info *elf,  in section_rel()  argument
1396 		get_rel_type_and_sym(elf, rel->r_info, &r_type, &r_sym);  in section_rel()
1398 		loc = sym_get_data_by_offset(elf, fsecndx, r_offset);  in section_rel()
1399 		tsym = elf->symtab_start + r_sym;  in section_rel()
1401 		switch (elf->hdr->e_machine) {  in section_rel()
1415 		check_section_mismatch(mod, elf, tsym,  in section_rel()
1432 static void check_sec_ref(struct module *mod, struct elf_info *elf)  in check_sec_ref()  argument
1437 	for (i = 0; i < elf->num_sections; i++) {  in check_sec_ref()
1438 		Elf_Shdr *sechdr = &elf->sechdrs[i];  in check_sec_ref()
1440 		check_section(mod->name, elf, sechdr);  in check_sec_ref()
1445 			const char *secname = sec_name(elf, secndx);  in check_sec_ref()
1452 			start = sym_get_data_by_offset(elf, i, 0);  in check_sec_ref()
1456 				section_rela(mod, elf, secndx, secname,  in check_sec_ref()
1459 				section_rel(mod, elf, secndx, secname,  in check_sec_ref()