418 	__printf(2, 0) void (*showfn)(struct btf_show *show, const char *fmt, va_list args);
458 	void (*show)(const struct btf *btf, const struct btf_type *t,  member
460 			 struct btf_show *show);
947 static const char *btf_show_name(struct btf_show *show)  in btf_show_name()  argument
956 	const struct btf_member *m = show->state.member;  in btf_show_name()
959 	u32 id = show->state.type_id;  in btf_show_name()
965 	show->state.name[0] = '\0';  in btf_show_name()
972 	if (show->state.array_member)  in btf_show_name()
977 		member = btf_name_by_offset(show->btf, m->name_off);  in btf_show_name()
989 	t = btf_type_by_id(show->btf, id);  in btf_show_name()
1020 				name = btf_name_by_offset(show->btf,  in btf_show_name()
1047 		t = btf_type_skip_qualifiers(show->btf, id);  in btf_show_name()
1054 		name = btf_name_by_offset(show->btf, t->name_off);  in btf_show_name()
1084 	if (show->flags & BTF_SHOW_NONAME)  in btf_show_name()
1085 		snprintf(show->state.name, sizeof(show->state.name), "%s",  in btf_show_name()
1088 		snprintf(show->state.name, sizeof(show->state.name),  in btf_show_name()
1103 	return show->state.name;  in btf_show_name()
1106 static const char *__btf_show_indent(struct btf_show *show)  in __btf_show_indent()  argument
1111 	if ((indent - show->state.depth) >= indents)  in __btf_show_indent()
1112 		return indent - show->state.depth;  in __btf_show_indent()
1116 static const char *btf_show_indent(struct btf_show *show)  in btf_show_indent()  argument
1118 	return show->flags & BTF_SHOW_COMPACT ? "" : __btf_show_indent(show);  in btf_show_indent()
1121 static const char *btf_show_newline(struct btf_show *show)  in btf_show_newline()  argument
1123 	return show->flags & BTF_SHOW_COMPACT ? "" : "\n";  in btf_show_newline()
1126 static const char *btf_show_delim(struct btf_show *show)  in btf_show_delim()  argument
1128 	if (show->state.depth == 0)  in btf_show_delim()
1131 	if ((show->flags & BTF_SHOW_COMPACT) && show->state.type &&  in btf_show_delim()
1132 		BTF_INFO_KIND(show->state.type->info) == BTF_KIND_UNION)  in btf_show_delim()
1138 __printf(2, 3) static void btf_show(struct btf_show *show, const char *fmt, ...)  in btf_show()  argument
1142 	if (!show->state.depth_check) {  in btf_show()
1144 		show->showfn(show, fmt, args);  in btf_show()
1154 #define btf_show_type_value(show, fmt, value)				       \  argument
1157 		    (show->flags & BTF_SHOW_ZERO) ||			       \
1158 		    show->state.depth == 0) {				       \
1159 			btf_show(show, "%s%s" fmt "%s%s",		       \
1160 				 btf_show_indent(show),			       \
1161 				 btf_show_name(show),			       \
1162 				 value, btf_show_delim(show),		       \
1163 				 btf_show_newline(show));		       \
1164 			if (show->state.depth > show->state.depth_to_show)     \
1165 				show->state.depth_to_show = show->state.depth; \
1169 #define btf_show_type_values(show, fmt, ...)				       \  argument
1171 		btf_show(show, "%s%s" fmt "%s%s", btf_show_indent(show),       \
1172 			 btf_show_name(show),				       \
1173 			 __VA_ARGS__, btf_show_delim(show),		       \
1174 			 btf_show_newline(show));			       \
1175 		if (show->state.depth > show->state.depth_to_show)	       \
1176 			show->state.depth_to_show = show->state.depth;	       \
1180 static int btf_show_obj_size_left(struct btf_show *show, void *data)  in btf_show_obj_size_left()  argument
1182 	return show->obj.head + show->obj.size - data;  in btf_show_obj_size_left()
1186 static bool btf_show_obj_is_safe(struct btf_show *show, void *data, int size)  in btf_show_obj_is_safe()  argument
1188 	return data >= show->obj.data &&  in btf_show_obj_is_safe()
1189 	       (data + size) < (show->obj.data + BTF_SHOW_OBJ_SAFE_SIZE);  in btf_show_obj_is_safe()
1198 static void *__btf_show_obj_safe(struct btf_show *show, void *data, int size)  in __btf_show_obj_safe()  argument
1200 	if (btf_show_obj_is_safe(show, data, size))  in __btf_show_obj_safe()
1201 		return show->obj.safe + (data - show->obj.data);  in __btf_show_obj_safe()
1233 static void *btf_show_obj_safe(struct btf_show *show,  in btf_show_obj_safe()  argument
1241 	if (show->flags & BTF_SHOW_UNSAFE)  in btf_show_obj_safe()
1244 	rt = btf_resolve_size(show->btf, t, &size);  in btf_show_obj_safe()
1246 		show->state.status = PTR_ERR(rt);  in btf_show_obj_safe()
1255 	if (show->state.depth == 0) {  in btf_show_obj_safe()
1256 		show->obj.size = size;  in btf_show_obj_safe()
1257 		show->obj.head = data;  in btf_show_obj_safe()
1280 		safe = __btf_show_obj_safe(show, data,  in btf_show_obj_safe()
1291 		size_left = btf_show_obj_size_left(show, data);  in btf_show_obj_safe()
1294 		show->state.status = copy_from_kernel_nofault(show->obj.safe,  in btf_show_obj_safe()
1296 		if (!show->state.status) {  in btf_show_obj_safe()
1297 			show->obj.data = data;  in btf_show_obj_safe()
1298 			safe = show->obj.safe;  in btf_show_obj_safe()
1309 static void *btf_show_start_type(struct btf_show *show,  in btf_show_start_type()  argument
1313 	show->state.type = t;  in btf_show_start_type()
1314 	show->state.type_id = type_id;  in btf_show_start_type()
1315 	show->state.name[0] = '\0';  in btf_show_start_type()
1317 	return btf_show_obj_safe(show, t, data);  in btf_show_start_type()
1320 static void btf_show_end_type(struct btf_show *show)  in btf_show_end_type()  argument
1322 	show->state.type = NULL;  in btf_show_end_type()
1323 	show->state.type_id = 0;  in btf_show_end_type()
1324 	show->state.name[0] = '\0';  in btf_show_end_type()
1327 static void *btf_show_start_aggr_type(struct btf_show *show,  in btf_show_start_aggr_type()  argument
1331 	void *safe_data = btf_show_start_type(show, t, type_id, data);  in btf_show_start_aggr_type()
1336 	btf_show(show, "%s%s%s", btf_show_indent(show),  in btf_show_start_aggr_type()
1337 		 btf_show_name(show),  in btf_show_start_aggr_type()
1338 		 btf_show_newline(show));  in btf_show_start_aggr_type()
1339 	show->state.depth++;  in btf_show_start_aggr_type()
1343 static void btf_show_end_aggr_type(struct btf_show *show,  in btf_show_end_aggr_type()  argument
1346 	show->state.depth--;  in btf_show_end_aggr_type()
1347 	btf_show(show, "%s%s%s%s", btf_show_indent(show), suffix,  in btf_show_end_aggr_type()
1348 		 btf_show_delim(show), btf_show_newline(show));  in btf_show_end_aggr_type()
1349 	btf_show_end_type(show);  in btf_show_end_aggr_type()
1352 static void btf_show_start_member(struct btf_show *show,  in btf_show_start_member()  argument
1355 	show->state.member = m;  in btf_show_start_member()
1358 static void btf_show_start_array_member(struct btf_show *show)  in btf_show_start_array_member()  argument
1360 	show->state.array_member = 1;  in btf_show_start_array_member()
1361 	btf_show_start_member(show, NULL);  in btf_show_start_array_member()
1364 static void btf_show_end_member(struct btf_show *show)  in btf_show_end_member()  argument
1366 	show->state.member = NULL;  in btf_show_end_member()
1369 static void btf_show_end_array_member(struct btf_show *show)  in btf_show_end_array_member()  argument
1371 	show->state.array_member = 0;  in btf_show_end_array_member()
1372 	btf_show_end_member(show);  in btf_show_end_array_member()
1375 static void *btf_show_start_array_type(struct btf_show *show,  in btf_show_start_array_type()  argument
1381 	show->state.array_encoding = array_encoding;  in btf_show_start_array_type()
1382 	show->state.array_terminated = 0;  in btf_show_start_array_type()
1383 	return btf_show_start_aggr_type(show, t, type_id, data);  in btf_show_start_array_type()
1386 static void btf_show_end_array_type(struct btf_show *show)  in btf_show_end_array_type()  argument
1388 	show->state.array_encoding = 0;  in btf_show_end_array_type()
1389 	show->state.array_terminated = 0;  in btf_show_end_array_type()
1390 	btf_show_end_aggr_type(show, "]");  in btf_show_end_array_type()
1393 static void *btf_show_start_struct_type(struct btf_show *show,  in btf_show_start_struct_type()  argument
1398 	return btf_show_start_aggr_type(show, t, type_id, data);  in btf_show_start_struct_type()
1401 static void btf_show_end_struct_type(struct btf_show *show)  in btf_show_end_struct_type()  argument
1403 	btf_show_end_aggr_type(show, "}");  in btf_show_end_struct_type()
2128 			struct btf_show *show)  in btf_df_show()  argument
2130 	btf_show(show, "<unsupported kind:%u>", BTF_INFO_KIND(t->info));  in btf_df_show()
2303 static void btf_int128_print(struct btf_show *show, void *data)  in btf_int128_print()  argument
2322 		btf_show_type_value(show, "0x%llx", lower_num);  in btf_int128_print()
2324 		btf_show_type_values(show, "0x%llx%016llx", upper_num,  in btf_int128_print()
2370 			      u8 nr_bits, struct btf_show *show)  in btf_bitfield_show()  argument
2390 	btf_int128_print(show, print_num);  in btf_bitfield_show()
2397 			      struct btf_show *show)  in btf_int_bits_show()  argument
2410 	btf_bitfield_show(data, bits_offset, nr_bits, show);  in btf_int_bits_show()
2415 			 struct btf_show *show)  in btf_int_show()  argument
2423 	safe_data = btf_show_start_type(show, t, type_id, data);  in btf_int_show()
2429 		btf_int_bits_show(btf, t, safe_data, bits_offset, show);  in btf_int_show()
2435 		btf_int128_print(show, safe_data);  in btf_int_show()
2439 			btf_show_type_value(show, "%lld", *(s64 *)safe_data);  in btf_int_show()
2441 			btf_show_type_value(show, "%llu", *(u64 *)safe_data);  in btf_int_show()
2445 			btf_show_type_value(show, "%d", *(s32 *)safe_data);  in btf_int_show()
2447 			btf_show_type_value(show, "%u", *(u32 *)safe_data);  in btf_int_show()
2451 			btf_show_type_value(show, "%d", *(s16 *)safe_data);  in btf_int_show()
2453 			btf_show_type_value(show, "%u", *(u16 *)safe_data);  in btf_int_show()
2456 		if (show->state.array_encoding == BTF_INT_CHAR) {  in btf_int_show()
2458 			if (show->state.array_terminated)  in btf_int_show()
2461 				show->state.array_terminated = 1;  in btf_int_show()
2465 				btf_show_type_value(show, "'%c'",  in btf_int_show()
2471 			btf_show_type_value(show, "%d", *(s8 *)safe_data);  in btf_int_show()
2473 			btf_show_type_value(show, "%u", *(u8 *)safe_data);  in btf_int_show()
2476 		btf_int_bits_show(btf, t, safe_data, bits_offset, show);  in btf_int_show()
2480 	btf_show_end_type(show);  in btf_int_show()
2489 	.show = btf_int_show,
2764 			      u8 bits_offset, struct btf_show *show)  in btf_modifier_show()  argument
2771 	btf_type_ops(t)->show(btf, t, type_id, data, bits_offset, show);  in btf_modifier_show()
2776 			 struct btf_show *show)  in btf_var_show()  argument
2780 	btf_type_ops(t)->show(btf, t, type_id, data, bits_offset, show);  in btf_var_show()
2785 			 struct btf_show *show)  in btf_ptr_show()  argument
2789 	safe_data = btf_show_start_type(show, t, type_id, data);  in btf_ptr_show()
2794 	if (show->flags & BTF_SHOW_PTR_RAW)  in btf_ptr_show()
2795 		btf_show_type_value(show, "0x%px", *(void **)safe_data);  in btf_ptr_show()
2797 		btf_show_type_value(show, "0x%p", *(void **)safe_data);  in btf_ptr_show()
2798 	btf_show_end_type(show);  in btf_ptr_show()
2813 	.show = btf_modifier_show,
2822 	.show = btf_ptr_show,
2863 	.show = btf_df_show,
3024 			     struct btf_show *show)  in __btf_array_show()  argument
3051 	if (!btf_show_start_array_type(show, t, type_id, encoding, data))  in __btf_array_show()
3060 		btf_show_start_array_member(show);  in __btf_array_show()
3062 		elem_ops->show(btf, elem_type, elem_type_id, data,  in __btf_array_show()
3063 			       bits_offset, show);  in __btf_array_show()
3066 		btf_show_end_array_member(show);  in __btf_array_show()
3068 		if (show->state.array_terminated)  in __btf_array_show()
3072 	btf_show_end_array_type(show);  in __btf_array_show()
3077 			   struct btf_show *show)  in btf_array_show()  argument
3079 	const struct btf_member *m = show->state.member;  in btf_array_show()
3086 	if (show->state.depth > 0 && !(show->flags & BTF_SHOW_ZERO)) {  in btf_array_show()
3087 		if (!show->state.depth_check) {  in btf_array_show()
3088 			show->state.depth_check = show->state.depth + 1;  in btf_array_show()
3089 			show->state.depth_to_show = 0;  in btf_array_show()
3091 		__btf_array_show(btf, t, type_id, data, bits_offset, show);  in btf_array_show()
3092 		show->state.member = m;  in btf_array_show()
3094 		if (show->state.depth_check != show->state.depth + 1)  in btf_array_show()
3096 		show->state.depth_check = 0;  in btf_array_show()
3098 		if (show->state.depth_to_show <= show->state.depth)  in btf_array_show()
3105 	__btf_array_show(btf, t, type_id, data, bits_offset, show);  in btf_array_show()
3114 	.show = btf_array_show,
4160 			      struct btf_show *show)  in __btf_struct_show()  argument
4166 	safe_data = btf_show_start_struct_type(show, t, type_id, data);  in __btf_struct_show()
4178 		btf_show_start_member(show, member);  in __btf_struct_show()
4185 			safe_data = btf_show_start_type(show, member_type,  in __btf_struct_show()
4191 						  bitfield_size, show);  in __btf_struct_show()
4192 			btf_show_end_type(show);  in __btf_struct_show()
4195 			ops->show(btf, member_type, member->type,  in __btf_struct_show()
4196 				  data + bytes_offset, bits8_offset, show);  in __btf_struct_show()
4199 		btf_show_end_member(show);  in __btf_struct_show()
4202 	btf_show_end_struct_type(show);  in __btf_struct_show()
4207 			    struct btf_show *show)  in btf_struct_show()  argument
4209 	const struct btf_member *m = show->state.member;  in btf_struct_show()
4216 	if (show->state.depth > 0 && !(show->flags & BTF_SHOW_ZERO)) {  in btf_struct_show()
4217 		if (!show->state.depth_check) {  in btf_struct_show()
4218 			show->state.depth_check = show->state.depth + 1;  in btf_struct_show()
4219 			show->state.depth_to_show = 0;  in btf_struct_show()
4221 		__btf_struct_show(btf, t, type_id, data, bits_offset, show);  in btf_struct_show()
4223 		show->state.member = m;  in btf_struct_show()
4224 		if (show->state.depth_check != show->state.depth + 1)  in btf_struct_show()
4226 		show->state.depth_check = 0;  in btf_struct_show()
4228 		if (show->state.depth_to_show <= show->state.depth)  in btf_struct_show()
4236 	__btf_struct_show(btf, t, type_id, data, bits_offset, show);  in btf_struct_show()
4245 	.show = btf_struct_show,
4375 			  struct btf_show *show)  in btf_enum_show()  argument
4382 	safe_data = btf_show_start_type(show, t, type_id, data);  in btf_enum_show()
4392 		btf_show_type_value(show, "%s",  in btf_enum_show()
4396 		btf_show_end_type(show);  in btf_enum_show()
4401 		btf_show_type_value(show, "%d", v);  in btf_enum_show()
4403 		btf_show_type_value(show, "%u", v);  in btf_enum_show()
4404 	btf_show_end_type(show);  in btf_enum_show()
4413 	.show = btf_enum_show,
4478 			    struct btf_show *show)  in btf_enum64_show()  argument
4485 	safe_data = btf_show_start_type(show, t, type_id, data);  in btf_enum64_show()
4495 		btf_show_type_value(show, "%s",  in btf_enum64_show()
4499 		btf_show_end_type(show);  in btf_enum64_show()
4504 		btf_show_type_value(show, "%lld", v);  in btf_enum64_show()
4506 		btf_show_type_value(show, "%llu", v);  in btf_enum64_show()
4507 	btf_show_end_type(show);  in btf_enum64_show()
4516 	.show = btf_enum64_show,
4603 	.show = btf_df_show,
4652 	.show = btf_df_show,
4716 	.show			= btf_var_show,
4841 			     struct btf_show *show)  in btf_datasec_show()  argument
4847 	if (!btf_show_start_type(show, t, type_id, data))  in btf_datasec_show()
4850 	btf_show_type_value(show, "section (\"%s\") = {",  in btf_datasec_show()
4855 			btf_show(show, ",");  in btf_datasec_show()
4856 		btf_type_ops(var)->show(btf, var, vsi->type,  in btf_datasec_show()
4857 					data + vsi->offset, bits_offset, show);  in btf_datasec_show()
4859 	btf_show_end_type(show);  in btf_datasec_show()
4868 	.show			= btf_datasec_show,
4943 	.show = btf_df_show,
5042 	.show = btf_df_show,
7860 			  struct btf_show *show)  in btf_type_show()  argument
7864 	show->btf = btf;  in btf_type_show()
7865 	memset(&show->state, 0, sizeof(show->state));  in btf_type_show()
7866 	memset(&show->obj, 0, sizeof(show->obj));  in btf_type_show()
7868 	btf_type_ops(t)->show(btf, t, type_id, obj, 0, show);  in btf_type_show()
7871 __printf(2, 0) static void btf_seq_show(struct btf_show *show, const char *fmt,  in btf_seq_show()  argument
7874 	seq_vprintf((struct seq_file *)show->target, fmt, args);  in btf_seq_show()
7900 	struct btf_show show;  member
7905 __printf(2, 0) static void btf_snprintf_show(struct btf_show *show, const char *fmt,  in btf_snprintf_show()  argument
7908 	struct btf_show_snprintf *ssnprintf = (struct btf_show_snprintf *)show;  in btf_snprintf_show()
7911 	len = vsnprintf(show->target, ssnprintf->len_left, fmt, args);  in btf_snprintf_show()
7923 		show->target += len;  in btf_snprintf_show()
7932 	ssnprintf.show.target = buf;  in btf_type_snprintf_show()
7933 	ssnprintf.show.flags = flags;  in btf_type_snprintf_show()
7934 	ssnprintf.show.showfn = btf_snprintf_show;  in btf_type_snprintf_show()
7941 	if (ssnprintf.show.state.status)  in btf_type_snprintf_show()
7942 		return ssnprintf.show.state.status;  in btf_type_snprintf_show()