723 static const char *sym_name(struct elf_info *elf, Elf_Sym *sym)  in sym_name()  argument
726 		return elf->strtab + sym->st_name;  in sym_name()
785 static void check_section(const char *modname, struct elf_info *elf,  in check_section()  argument
788 	const char *sec = sech_name(elf, sechdr);  in check_section()
894 	void (*handler)(const char *modname, struct elf_info *elf,
900 static void extable_mismatch_handler(const char *modname, struct elf_info *elf,
1132 static inline int is_valid_name(struct elf_info *elf, Elf_Sym *sym)  in is_valid_name()  argument
1134 	const char *name = elf->strtab + sym->st_name;  in is_valid_name()
1148 static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr,  in find_elf_symbol()  argument
1160 	relsym_secindex = get_secindex(elf, relsym);  in find_elf_symbol()
1161 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {  in find_elf_symbol()
1162 		if (get_secindex(elf, sym) != relsym_secindex)  in find_elf_symbol()
1166 		if (!is_valid_name(elf, sym))  in find_elf_symbol()
1192 static Elf_Sym *find_elf_symbol2(struct elf_info *elf, Elf_Addr addr,  in find_elf_symbol2()  argument
1199 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {  in find_elf_symbol2()
1204 		symsec = sec_name(elf, get_secindex(elf, sym));  in find_elf_symbol2()
1207 		if (!is_valid_name(elf, sym))  in find_elf_symbol2()
1269 static void default_mismatch_handler(const char *modname, struct elf_info *elf,  in default_mismatch_handler()  argument
1279 	from = find_elf_symbol2(elf, r->r_offset, fromsec);  in default_mismatch_handler()
1280 	fromsym = sym_name(elf, from);  in default_mismatch_handler()
1282 	tosec = sec_name(elf, get_secindex(elf, sym));  in default_mismatch_handler()
1283 	to = find_elf_symbol(elf, r->r_addend, sym);  in default_mismatch_handler()
1284 	tosym = sym_name(elf, to);  in default_mismatch_handler()
1294 static int is_executable_section(struct elf_info* elf, unsigned int section_index)  in is_executable_section()  argument
1296 	if (section_index > elf->num_sections)  in is_executable_section()
1299 	return ((elf->sechdrs[section_index].sh_flags & SHF_EXECINSTR) == SHF_EXECINSTR);  in is_executable_section()
1339 static void report_extable_warnings(const char* modname, struct elf_info* elf,  in report_extable_warnings()  argument
1344 	Elf_Sym* fromsym = find_elf_symbol2(elf, r->r_offset, fromsec);  in report_extable_warnings()
1345 	const char* fromsym_name = sym_name(elf, fromsym);  in report_extable_warnings()
1346 	Elf_Sym* tosym = find_elf_symbol(elf, r->r_addend, sym);  in report_extable_warnings()
1347 	const char* tosym_name = sym_name(elf, tosym);  in report_extable_warnings()
1365 	    is_executable_section(elf, get_secindex(elf, sym)))  in report_extable_warnings()
1377 static void extable_mismatch_handler(const char* modname, struct elf_info *elf,  in extable_mismatch_handler()  argument
1382 	const char* tosec = sec_name(elf, get_secindex(elf, sym));  in extable_mismatch_handler()
1386 	report_extable_warnings(modname, elf, mismatch, r, sym, fromsec, tosec);  in extable_mismatch_handler()
1395 	else if (!is_executable_section(elf, get_secindex(elf, sym))) {  in extable_mismatch_handler()
1413 static void check_section_mismatch(const char *modname, struct elf_info *elf,  in check_section_mismatch()  argument
1416 	const char *tosec = sec_name(elf, get_secindex(elf, sym));  in check_section_mismatch()
1421 			mismatch->handler(modname, elf,  mismatch,  in check_section_mismatch()
1424 			default_mismatch_handler(modname, elf, mismatch,  in check_section_mismatch()
1429 static unsigned int *reloc_location(struct elf_info *elf,  in reloc_location()  argument
1432 	return sym_get_data_by_offset(elf, sechdr->sh_info, r->r_offset);  in reloc_location()
1435 static int addend_386_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)  in addend_386_rel()  argument
1438 	unsigned int *location = reloc_location(elf, sechdr, r);  in addend_386_rel()
1468 static int addend_arm_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)  in addend_arm_rel()  argument
1476 			      (elf->symtab_start + ELF_R_SYM(r->r_info));  in addend_arm_rel()
1485 		r->r_addend = (int)(long)(elf->hdr +  in addend_arm_rel()
1495 static int addend_mips_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)  in addend_mips_rel()  argument
1498 	unsigned int *location = reloc_location(elf, sechdr, r);  in addend_mips_rel()
1526 static void section_rela(const char *modname, struct elf_info *elf,  in section_rela()  argument
1535 	Elf_Rela *start = (void *)elf->hdr + sechdr->sh_offset;  in section_rela()
1538 	fromsec = sec_name(elf, sechdr->sh_info);  in section_rela()
1546 		if (elf->hdr->e_machine == EM_MIPS) {  in section_rela()
1561 		switch (elf->hdr->e_machine) {  in section_rela()
1568 		sym = elf->symtab_start + r_sym;  in section_rela()
1574 		check_section_mismatch(modname, elf, &r, sym, fromsec);  in section_rela()
1578 static void section_rel(const char *modname, struct elf_info *elf,  in section_rel()  argument
1587 	Elf_Rel *start = (void *)elf->hdr + sechdr->sh_offset;  in section_rel()
1590 	fromsec = sec_name(elf, sechdr->sh_info);  in section_rel()
1598 		if (elf->hdr->e_machine == EM_MIPS) {  in section_rel()
1613 		switch (elf->hdr->e_machine) {  in section_rel()
1615 			if (addend_386_rel(elf, sechdr, &r))  in section_rel()
1619 			if (addend_arm_rel(elf, sechdr, &r))  in section_rel()
1623 			if (addend_mips_rel(elf, sechdr, &r))  in section_rel()
1627 		sym = elf->symtab_start + r_sym;  in section_rel()
1633 		check_section_mismatch(modname, elf, &r, sym, fromsec);  in section_rel()
1649 static void check_sec_ref(const char *modname, struct elf_info *elf)  in check_sec_ref()  argument
1652 	Elf_Shdr *sechdrs = elf->sechdrs;  in check_sec_ref()
1655 	for (i = 0; i < elf->num_sections; i++) {  in check_sec_ref()
1656 		check_section(modname, elf, &elf->sechdrs[i]);  in check_sec_ref()
1659 			section_rela(modname, elf, &elf->sechdrs[i]);  in check_sec_ref()
1661 			section_rel(modname, elf, &elf->sechdrs[i]);  in check_sec_ref()