153 	struct symbol *sym;  in find_symbol()  local
155 	for (sym = symtab[h]; sym; sym = sym->hash_next)  in find_symbol()
156 		if (map_to_ns(sym->type) == map_to_ns(ns) &&  in find_symbol()
157 		    strcmp(name, sym->name) == 0 &&  in find_symbol()
158 		    sym->is_declared)  in find_symbol()
161 	return sym;  in find_symbol()
164 static int is_unknown_symbol(struct symbol *sym)  in is_unknown_symbol()  argument
168 	return ((sym->type == SYM_STRUCT ||  in is_unknown_symbol()
169 		 sym->type == SYM_UNION ||  in is_unknown_symbol()
170 		 sym->type == SYM_ENUM) &&  in is_unknown_symbol()
171 		(defn = sym->defn)  && defn->tag == SYM_NORMAL &&  in is_unknown_symbol()
184 	struct symbol *sym;  in __add_symbol()  local
187 	for (sym = symtab[h]; sym; sym = sym->hash_next) {  in __add_symbol()
188 		if (map_to_ns(sym->type) == map_to_ns(type) &&  in __add_symbol()
189 		    strcmp(name, sym->name) == 0) {  in __add_symbol()
192 			else if (sym->type == type &&  in __add_symbol()
193 				 equal_list(sym->defn, defn)) {  in __add_symbol()
194 				if (!sym->is_declared && sym->is_override) {  in __add_symbol()
200 				sym->is_declared = 1;  in __add_symbol()
201 				return sym;  in __add_symbol()
202 			} else if (!sym->is_declared) {  in __add_symbol()
203 				if (sym->is_override && flag_preserve) {  in __add_symbol()
208 					sym->is_declared = 1;  in __add_symbol()
209 					return sym;  in __add_symbol()
211 					status = is_unknown_symbol(sym) ?  in __add_symbol()
216 				return sym;  in __add_symbol()
222 	if (sym) {  in __add_symbol()
226 			if (*psym == sym) {  in __add_symbol()
227 				*psym = sym->hash_next;  in __add_symbol()
234 	sym = xmalloc(sizeof(*sym));  in __add_symbol()
235 	sym->name = name;  in __add_symbol()
236 	sym->type = type;  in __add_symbol()
237 	sym->defn = defn;  in __add_symbol()
238 	sym->expansion_trail = NULL;  in __add_symbol()
239 	sym->visited = NULL;  in __add_symbol()
240 	sym->is_extern = is_extern;  in __add_symbol()
242 	sym->hash_next = symtab[h];  in __add_symbol()
243 	symtab[h] = sym;  in __add_symbol()
245 	sym->is_declared = !is_reference;  in __add_symbol()
246 	sym->status = status;  in __add_symbol()
247 	sym->is_override = 0;  in __add_symbol()
259 	return sym;  in __add_symbol()
366 		struct string_list *sym, *def;  in read_reference()  local
370 		sym = read_node(f);  in read_reference()
371 		if (sym && sym->tag == SYM_NORMAL &&  in read_reference()
372 		    !strcmp(sym->string, "override")) {  in read_reference()
374 			free_node(sym);  in read_reference()
375 			sym = read_node(f);  in read_reference()
377 		if (!sym)  in read_reference()
391 		subsym = add_reference_symbol(xstrdup(sym->string), sym->tag,  in read_reference()
394 		free_node(sym);  in read_reference()
436 static unsigned long expand_and_crc_sym(struct symbol *sym, unsigned long crc)  in expand_and_crc_sym()  argument
438 	struct string_list *list = sym->defn;  in expand_and_crc_sym()
554 		if (!sym->visited) {  in expand_and_crc_sym()
555 			*end = sym;  in expand_and_crc_sym()
556 			end = &sym->visited;  in expand_and_crc_sym()
557 			sym->visited = (struct symbol *)-1L;  in expand_and_crc_sym()
566 	struct symbol *sym;  in export_symbol()  local
568 	sym = find_symbol(name, SYM_NORMAL);  in export_symbol()
569 	if (!sym)  in export_symbol()
580 		sym->expansion_trail = expansion_trail;  in export_symbol()
581 		expansion_trail = sym;  in export_symbol()
582 		crc = expand_and_crc_sym(sym, 0xffffffff) ^ 0xffffffff;  in export_symbol()
584 		sym = expansion_trail;  in export_symbol()
585 		while (sym != (struct symbol *)-1L) {  in export_symbol()
586 			struct symbol *n = sym->expansion_trail;  in export_symbol()
588 			if (sym->status != STATUS_UNCHANGED) {  in export_symbol()
597 				print_type_name(sym->type, sym->name);  in export_symbol()
598 				if (sym->status == STATUS_DEFINED)  in export_symbol()
604 			sym->expansion_trail = 0;  in export_symbol()
605 			sym = n;  in export_symbol()
768 			struct symbol *sym = visited_symbols;  in main()  local
770 			if (sym->is_override)  in main()
772 			if (sym->type != SYM_NORMAL) {  in main()
773 				putc(symbol_type_name[sym->type][0], dumpfile);  in main()
776 			fputs(sym->name, dumpfile);  in main()
778 			if (sym->is_extern)  in main()
780 			print_list(dumpfile, sym->defn);  in main()
783 			visited_symbols = sym->visited;  in main()
784 			sym->visited = NULL;  in main()