32 	char *mod, *sym;  member
108 		char *sym, *mod, *type;  in read_exports()  local
111 		sym = strchr(line, '\t');  in read_exports()
112 		if (!sym) {  in read_exports()
117 		*sym++ = '\0';  in read_exports()
119 		mod = strchr(sym, '\t');  in read_exports()
135 		if (*sym == '\0' || *mod == '\0') {  in read_exports()
152 		export->sym = strdup(sym);  in read_exports()
153 		if (!export->sym) {  in read_exports()
158 		hash_add(exports, &export->hash, str_hash(sym));  in read_exports()
191 		struct symbol *sym;  in read_sym_checksums()  local
201 		sym = reloc->sym;  in read_sym_checksums()
203 		if (is_sec_sym(sym)) {  in read_sym_checksums()
204 			ERROR("not sure how to handle section %s", sym->name);  in read_sym_checksums()
208 		if (is_func_sym(sym))  in read_sym_checksums()
209 			sym->csum.checksum = sym_checksum->checksum;  in read_sym_checksums()
217 	struct symbol *sym;  in first_file_symbol()  local
219 	for_each_sym(elf, sym) {  in first_file_symbol()
220 		if (is_file_sym(sym))  in first_file_symbol()
221 			return sym;  in first_file_symbol()
227 static struct symbol *next_file_symbol(struct elf *elf, struct symbol *sym)  in next_file_symbol()  argument
229 	for_each_sym_continue(elf, sym) {  in next_file_symbol()
230 		if (is_file_sym(sym))  in next_file_symbol()
231 			return sym;  in next_file_symbol()
241 static bool is_uncorrelated_static_local(struct symbol *sym)  in is_uncorrelated_static_local()  argument
255 	if (!is_object_sym(sym) || !is_local_sym(sym))  in is_uncorrelated_static_local()
258 	if (!strcmp(sym->sec->name, ".data.once"))  in is_uncorrelated_static_local()
262 		if (strstarts(sym->name, vars[i]))  in is_uncorrelated_static_local()
272 static bool is_clang_tmp_label(struct symbol *sym)  in is_clang_tmp_label()  argument
274 	return sym->type == STT_NOTYPE &&  in is_clang_tmp_label()
275 	       is_text_sec(sym->sec) &&  in is_clang_tmp_label()
276 	       strstarts(sym->name, ".Ltmp") &&  in is_clang_tmp_label()
277 	       isdigit(sym->name[5]);  in is_clang_tmp_label()
344 static bool dont_correlate(struct symbol *sym)  in dont_correlate()  argument
346 	return is_file_sym(sym) ||  in dont_correlate()
347 	       is_null_sym(sym) ||  in dont_correlate()
348 	       is_sec_sym(sym) ||  in dont_correlate()
349 	       is_prefix_func(sym) ||  in dont_correlate()
350 	       is_uncorrelated_static_local(sym) ||  in dont_correlate()
351 	       is_clang_tmp_label(sym) ||  in dont_correlate()
352 	       is_string_sec(sym->sec) ||  in dont_correlate()
353 	       is_special_section(sym->sec) ||  in dont_correlate()
354 	       is_special_section_aux(sym->sec) ||  in dont_correlate()
355 	       strstarts(sym->name, "__initcall__");  in dont_correlate()
473 static unsigned long find_sympos(struct elf *elf, struct symbol *sym)  in find_sympos()  argument
480 	if (sym->bind != STB_LOCAL)  in find_sympos()
483 	if (vmlinux && sym->type == STT_FUNC) {  in find_sympos()
493 			    !strcmp(s->name, sym->name)) {  in find_sympos()
495 				if (s == sym)  in find_sympos()
503 			    !strcmp(s->name, sym->name)) {  in find_sympos()
505 				if (s == sym)  in find_sympos()
513 			if (!strcmp(s->name, sym->name)) {  in find_sympos()
515 				if (s == sym)  in find_sympos()
524 		ERROR("can't find sympos for %s", sym->name);  in find_sympos()
596 static const char *sym_type(struct symbol *sym)  in sym_type()  argument
598 	switch (sym->type) {  in sym_type()
608 static const char *sym_bind(struct symbol *sym)  in sym_bind()  argument
610 	switch (sym->bind) {  in sym_bind()
756 	return section_reference_needed(reloc->sym->sec) == is_sec_sym(reloc->sym);  in is_reloc_allowed()
759 static struct export *find_export(struct symbol *sym)  in find_export()  argument
763 	hash_for_each_possible(exports, export, hash, str_hash(sym->name)) {  in find_export()
764 		if (!strcmp(export->sym, sym->name))  in find_export()
828 	struct symbol *patched_sym = patched_reloc->sym;  in klp_reloc_needed()
869 	struct symbol *sym = reloc->sym;  in convert_reloc_sym_to_secsym()  local
870 	struct section *sec = sym->sec;  in convert_reloc_sym_to_secsym()
872 	if (!sec->sym && !elf_create_section_symbol(elf, sec))  in convert_reloc_sym_to_secsym()
875 	reloc->sym = sec->sym;  in convert_reloc_sym_to_secsym()
876 	set_reloc_sym(elf, reloc, sym->idx);  in convert_reloc_sym_to_secsym()
877 	set_reloc_addend(elf, reloc, sym->offset + reloc_addend(reloc));  in convert_reloc_sym_to_secsym()
883 	struct symbol *sym = reloc->sym;  in convert_reloc_secsym_to_sym()  local
884 	struct section *sec = sym->sec;  in convert_reloc_secsym_to_sym()
887 	sym = find_symbol_by_offset(sec, 0);  in convert_reloc_secsym_to_sym()
888 	if (sym && sym->len == sec_size(sec))  in convert_reloc_secsym_to_sym()
892 	sym = find_symbol_containing(sec, arch_adjusted_addend(reloc));  in convert_reloc_secsym_to_sym()
893 	if (!sym) {  in convert_reloc_secsym_to_sym()
902 	reloc->sym = sym;  in convert_reloc_secsym_to_sym()
903 	set_reloc_sym(elf, reloc, sym->idx);  in convert_reloc_secsym_to_sym()
904 	set_reloc_addend(elf, reloc, reloc_addend(reloc) - sym->offset);  in convert_reloc_secsym_to_sym()
917 	if (section_reference_needed(reloc->sym->sec))  in convert_reloc_sym()
930 	struct symbol *patched_sym = patched_reloc->sym;  in clone_reloc_klp()
934 	struct symbol *sym, *klp_sym;  in clone_reloc_klp()  local
953 	sym = patched_sym->clone;  in clone_reloc_klp()
954 	if (!sym) {  in clone_reloc_klp()
956 		sym = elf_create_symbol(e->out, patched_sym->name, NULL,  in clone_reloc_klp()
958 		if (!sym)  in clone_reloc_klp()
961 		patched_sym->clone = sym;  in clone_reloc_klp()
962 		sym->clone = patched_sym;  in clone_reloc_klp()
965 	if (!elf_create_reloc(e->out, sec, offset, sym, addend, reloc_type(patched_reloc)))  in clone_reloc_klp()
974 		sym_orig_name = export->sym;  in clone_reloc_klp()
1027 	if (!sec->sym && !elf_create_section_symbol(e->out, sec))  in clone_reloc_klp()
1032 			      sec->sym, offset, R_ABS64))  in clone_reloc_klp()
1037 			      klp_reloc_off + offsetof(struct klp_reloc, sym),  in clone_reloc_klp()
1059 	struct symbol *patched_sym = patched_reloc->sym;  in clone_reloc()
1163 		if (patched_reloc->sym->sec &&  in clone_sym_relocs()
1164 		    !strcmp(patched_reloc->sym->sec->name, ".altinstr_aux"))  in clone_sym_relocs()
1170 				   patched_reloc->sym->name);  in clone_sym_relocs()
1264 			    next_reloc->sym->sec != reloc->sym->sec)  in create_fake_symbols()
1272 			size = sec_size(reloc->sym->sec) - offset;  in create_fake_symbols()
1274 		if (create_fake_symbol(elf, reloc->sym->sec, offset, size))  in create_fake_symbols()
1313 static bool should_keep_special_sym(struct elf *elf, struct symbol *sym)  in should_keep_special_sym()  argument
1317 	if (is_sec_sym(sym) || !sym->sec->rsec)  in should_keep_special_sym()
1320 	sym_for_each_reloc(elf, sym, reloc) {  in should_keep_special_sym()
1324 		if (is_func_sym(reloc->sym) && reloc->sym->included)  in should_keep_special_sym()
1351 static int validate_special_section_klp_reloc(struct elfs *e, struct symbol *sym)  in validate_special_section_klp_reloc()  argument
1353 	bool static_branch = !strcmp(sym->sec->name, "__jump_table");  in validate_special_section_klp_reloc()
1354 	bool static_call   = !strcmp(sym->sec->name, ".static_call_sites");  in validate_special_section_klp_reloc()
1363 	sym_for_each_reloc(e->patched, sym, reloc) {  in validate_special_section_klp_reloc()
1368 		if (reloc->sym->type != STT_OBJECT) {  in validate_special_section_klp_reloc()
1371 			if (reloc->sym->type == STT_FUNC && !code_sym) {  in validate_special_section_klp_reloc()
1372 				code_sym = reloc->sym;  in validate_special_section_klp_reloc()
1382 		export = find_export(reloc->sym);  in validate_special_section_klp_reloc()
1396 			if (strstarts(reloc->sym->name, "__tracepoint_")) {  in validate_special_section_klp_reloc()
1398 				     code_sym->name, reloc->sym->name + 13);  in validate_special_section_klp_reloc()
1404 			      code_sym->name, code_offset, reloc->sym->name);  in validate_special_section_klp_reloc()
1409 		if (strstarts(reloc->sym->name, "__SCK__tp_func_")) {  in validate_special_section_klp_reloc()
1415 		      code_sym->name, code_offset, reloc->sym->name);  in validate_special_section_klp_reloc()
1477 	struct symbol *funcs_sym, *str_sym, *sym;  in create_klp_sections()  local
1535 	for_each_sym(e->out, sym) {  in create_klp_sections()
1540 		if (!is_func_sym(sym) || sym->cold || !sym->clone || !sym->clone->changed)  in create_klp_sections()
1549 		addend = elf_add_string(e->out, str_sec, sym->clone->twin->name);  in create_klp_sections()
1561 				      sym, 0, R_ABS64))  in create_klp_sections()
1566 		sympos = find_sympos(e->orig, sym->clone->twin);  in create_klp_sections()
1588 	sym = find_symbol_by_name(e->out, sym_name);  in create_klp_sections()
1589 	if (sym) {  in create_klp_sections()
1592 		reloc = find_reloc_by_dest(e->out, sym->sec, sym->offset);  in create_klp_sections()
1597 				      reloc->sym, reloc_addend(reloc), R_ABS64))  in create_klp_sections()
1604 	sym = find_symbol_by_name(e->out, sym_name);  in create_klp_sections()
1605 	if (sym) {  in create_klp_sections()
1608 		reloc = find_reloc_by_dest(e->out, sym->sec, sym->offset);  in create_klp_sections()
1613 				      reloc->sym, reloc_addend(reloc), R_ABS64))  in create_klp_sections()
1620 	sym = find_symbol_by_name(e->out, sym_name);  in create_klp_sections()
1621 	if (sym) {  in create_klp_sections()
1624 		reloc = find_reloc_by_dest(e->out, sym->sec, sym->offset);  in create_klp_sections()
1629 				      reloc->sym, reloc_addend(reloc), R_ABS64))  in create_klp_sections()
1636 	sym = find_symbol_by_name(e->out, sym_name);  in create_klp_sections()
1637 	if (sym) {  in create_klp_sections()
1640 		reloc = find_reloc_by_dest(e->out, sym->sec, sym->offset);  in create_klp_sections()
1645 				      reloc->sym, reloc_addend(reloc), R_ABS64))  in create_klp_sections()