381 	void (*showfn)(struct btf_show *show, const char *fmt, va_list args);
421 	void (*show)(const struct btf *btf, const struct btf_type *t,  member
423 			 struct btf_show *show);
911 static const char *btf_show_name(struct btf_show *show)  in btf_show_name()  argument
920 	const struct btf_member *m = show->state.member;  in btf_show_name()
923 	u32 id = show->state.type_id;  in btf_show_name()
929 	show->state.name[0] = '\0';  in btf_show_name()
936 	if (show->state.array_member)  in btf_show_name()
941 		member = btf_name_by_offset(show->btf, m->name_off);  in btf_show_name()
953 	t = btf_type_by_id(show->btf, id);  in btf_show_name()
984 				name = btf_name_by_offset(show->btf,  in btf_show_name()
1011 		t = btf_type_skip_qualifiers(show->btf, id);  in btf_show_name()
1018 		name = btf_name_by_offset(show->btf, t->name_off);  in btf_show_name()
1048 	if (show->flags & BTF_SHOW_NONAME)  in btf_show_name()
1049 		snprintf(show->state.name, sizeof(show->state.name), "%s",  in btf_show_name()
1052 		snprintf(show->state.name, sizeof(show->state.name),  in btf_show_name()
1067 	return show->state.name;  in btf_show_name()
1070 static const char *__btf_show_indent(struct btf_show *show)  in __btf_show_indent()  argument
1075 	if ((indent - show->state.depth) >= indents)  in __btf_show_indent()
1076 		return indent - show->state.depth;  in __btf_show_indent()
1080 static const char *btf_show_indent(struct btf_show *show)  in btf_show_indent()  argument
1082 	return show->flags & BTF_SHOW_COMPACT ? "" : __btf_show_indent(show);  in btf_show_indent()
1085 static const char *btf_show_newline(struct btf_show *show)  in btf_show_newline()  argument
1087 	return show->flags & BTF_SHOW_COMPACT ? "" : "\n";  in btf_show_newline()
1090 static const char *btf_show_delim(struct btf_show *show)  in btf_show_delim()  argument
1092 	if (show->state.depth == 0)  in btf_show_delim()
1095 	if ((show->flags & BTF_SHOW_COMPACT) && show->state.type &&  in btf_show_delim()
1096 		BTF_INFO_KIND(show->state.type->info) == BTF_KIND_UNION)  in btf_show_delim()
1102 __printf(2, 3) static void btf_show(struct btf_show *show, const char *fmt, ...)  in btf_show()  argument
1106 	if (!show->state.depth_check) {  in btf_show()
1108 		show->showfn(show, fmt, args);  in btf_show()
1118 #define btf_show_type_value(show, fmt, value)				       \  argument
1121 		    (show->flags & BTF_SHOW_ZERO) ||			       \
1122 		    show->state.depth == 0) {				       \
1123 			btf_show(show, "%s%s" fmt "%s%s",		       \
1124 				 btf_show_indent(show),			       \
1125 				 btf_show_name(show),			       \
1126 				 value, btf_show_delim(show),		       \
1127 				 btf_show_newline(show));		       \
1128 			if (show->state.depth > show->state.depth_to_show)     \
1129 				show->state.depth_to_show = show->state.depth; \
1133 #define btf_show_type_values(show, fmt, ...)				       \  argument
1135 		btf_show(show, "%s%s" fmt "%s%s", btf_show_indent(show),       \
1136 			 btf_show_name(show),				       \
1137 			 __VA_ARGS__, btf_show_delim(show),		       \
1138 			 btf_show_newline(show));			       \
1139 		if (show->state.depth > show->state.depth_to_show)	       \
1140 			show->state.depth_to_show = show->state.depth;	       \
1144 static int btf_show_obj_size_left(struct btf_show *show, void *data)  in btf_show_obj_size_left()  argument
1146 	return show->obj.head + show->obj.size - data;  in btf_show_obj_size_left()
1150 static bool btf_show_obj_is_safe(struct btf_show *show, void *data, int size)  in btf_show_obj_is_safe()  argument
1152 	return data >= show->obj.data &&  in btf_show_obj_is_safe()
1153 	       (data + size) < (show->obj.data + BTF_SHOW_OBJ_SAFE_SIZE);  in btf_show_obj_is_safe()
1162 static void *__btf_show_obj_safe(struct btf_show *show, void *data, int size)  in __btf_show_obj_safe()  argument
1164 	if (btf_show_obj_is_safe(show, data, size))  in __btf_show_obj_safe()
1165 		return show->obj.safe + (data - show->obj.data);  in __btf_show_obj_safe()
1197 static void *btf_show_obj_safe(struct btf_show *show,  in btf_show_obj_safe()  argument
1205 	if (show->flags & BTF_SHOW_UNSAFE)  in btf_show_obj_safe()
1208 	rt = btf_resolve_size(show->btf, t, &size);  in btf_show_obj_safe()
1210 		show->state.status = PTR_ERR(rt);  in btf_show_obj_safe()
1219 	if (show->state.depth == 0) {  in btf_show_obj_safe()
1220 		show->obj.size = size;  in btf_show_obj_safe()
1221 		show->obj.head = data;  in btf_show_obj_safe()
1244 		safe = __btf_show_obj_safe(show, data,  in btf_show_obj_safe()
1255 		size_left = btf_show_obj_size_left(show, data);  in btf_show_obj_safe()
1258 		show->state.status = copy_from_kernel_nofault(show->obj.safe,  in btf_show_obj_safe()
1260 		if (!show->state.status) {  in btf_show_obj_safe()
1261 			show->obj.data = data;  in btf_show_obj_safe()
1262 			safe = show->obj.safe;  in btf_show_obj_safe()
1273 static void *btf_show_start_type(struct btf_show *show,  in btf_show_start_type()  argument
1277 	show->state.type = t;  in btf_show_start_type()
1278 	show->state.type_id = type_id;  in btf_show_start_type()
1279 	show->state.name[0] = '\0';  in btf_show_start_type()
1281 	return btf_show_obj_safe(show, t, data);  in btf_show_start_type()
1284 static void btf_show_end_type(struct btf_show *show)  in btf_show_end_type()  argument
1286 	show->state.type = NULL;  in btf_show_end_type()
1287 	show->state.type_id = 0;  in btf_show_end_type()
1288 	show->state.name[0] = '\0';  in btf_show_end_type()
1291 static void *btf_show_start_aggr_type(struct btf_show *show,  in btf_show_start_aggr_type()  argument
1295 	void *safe_data = btf_show_start_type(show, t, type_id, data);  in btf_show_start_aggr_type()
1300 	btf_show(show, "%s%s%s", btf_show_indent(show),  in btf_show_start_aggr_type()
1301 		 btf_show_name(show),  in btf_show_start_aggr_type()
1302 		 btf_show_newline(show));  in btf_show_start_aggr_type()
1303 	show->state.depth++;  in btf_show_start_aggr_type()
1307 static void btf_show_end_aggr_type(struct btf_show *show,  in btf_show_end_aggr_type()  argument
1310 	show->state.depth--;  in btf_show_end_aggr_type()
1311 	btf_show(show, "%s%s%s%s", btf_show_indent(show), suffix,  in btf_show_end_aggr_type()
1312 		 btf_show_delim(show), btf_show_newline(show));  in btf_show_end_aggr_type()
1313 	btf_show_end_type(show);  in btf_show_end_aggr_type()
1316 static void btf_show_start_member(struct btf_show *show,  in btf_show_start_member()  argument
1319 	show->state.member = m;  in btf_show_start_member()
1322 static void btf_show_start_array_member(struct btf_show *show)  in btf_show_start_array_member()  argument
1324 	show->state.array_member = 1;  in btf_show_start_array_member()
1325 	btf_show_start_member(show, NULL);  in btf_show_start_array_member()
1328 static void btf_show_end_member(struct btf_show *show)  in btf_show_end_member()  argument
1330 	show->state.member = NULL;  in btf_show_end_member()
1333 static void btf_show_end_array_member(struct btf_show *show)  in btf_show_end_array_member()  argument
1335 	show->state.array_member = 0;  in btf_show_end_array_member()
1336 	btf_show_end_member(show);  in btf_show_end_array_member()
1339 static void *btf_show_start_array_type(struct btf_show *show,  in btf_show_start_array_type()  argument
1345 	show->state.array_encoding = array_encoding;  in btf_show_start_array_type()
1346 	show->state.array_terminated = 0;  in btf_show_start_array_type()
1347 	return btf_show_start_aggr_type(show, t, type_id, data);  in btf_show_start_array_type()
1350 static void btf_show_end_array_type(struct btf_show *show)  in btf_show_end_array_type()  argument
1352 	show->state.array_encoding = 0;  in btf_show_end_array_type()
1353 	show->state.array_terminated = 0;  in btf_show_end_array_type()
1354 	btf_show_end_aggr_type(show, "]");  in btf_show_end_array_type()
1357 static void *btf_show_start_struct_type(struct btf_show *show,  in btf_show_start_struct_type()  argument
1362 	return btf_show_start_aggr_type(show, t, type_id, data);  in btf_show_start_struct_type()
1365 static void btf_show_end_struct_type(struct btf_show *show)  in btf_show_end_struct_type()  argument
1367 	btf_show_end_aggr_type(show, "}");  in btf_show_end_struct_type()
2022 			struct btf_show *show)  in btf_df_show()  argument
2024 	btf_show(show, "<unsupported kind:%u>", BTF_INFO_KIND(t->info));  in btf_df_show()
2197 static void btf_int128_print(struct btf_show *show, void *data)  in btf_int128_print()  argument
2216 		btf_show_type_value(show, "0x%llx", lower_num);  in btf_int128_print()
2218 		btf_show_type_values(show, "0x%llx%016llx", upper_num,  in btf_int128_print()
2264 			      u8 nr_bits, struct btf_show *show)  in btf_bitfield_show()  argument
2284 	btf_int128_print(show, print_num);  in btf_bitfield_show()
2291 			      struct btf_show *show)  in btf_int_bits_show()  argument
2304 	btf_bitfield_show(data, bits_offset, nr_bits, show);  in btf_int_bits_show()
2309 			 struct btf_show *show)  in btf_int_show()  argument
2317 	safe_data = btf_show_start_type(show, t, type_id, data);  in btf_int_show()
2323 		btf_int_bits_show(btf, t, safe_data, bits_offset, show);  in btf_int_show()
2329 		btf_int128_print(show, safe_data);  in btf_int_show()
2333 			btf_show_type_value(show, "%lld", *(s64 *)safe_data);  in btf_int_show()
2335 			btf_show_type_value(show, "%llu", *(u64 *)safe_data);  in btf_int_show()
2339 			btf_show_type_value(show, "%d", *(s32 *)safe_data);  in btf_int_show()
2341 			btf_show_type_value(show, "%u", *(u32 *)safe_data);  in btf_int_show()
2345 			btf_show_type_value(show, "%d", *(s16 *)safe_data);  in btf_int_show()
2347 			btf_show_type_value(show, "%u", *(u16 *)safe_data);  in btf_int_show()
2350 		if (show->state.array_encoding == BTF_INT_CHAR) {  in btf_int_show()
2352 			if (show->state.array_terminated)  in btf_int_show()
2355 				show->state.array_terminated = 1;  in btf_int_show()
2359 				btf_show_type_value(show, "'%c'",  in btf_int_show()
2365 			btf_show_type_value(show, "%d", *(s8 *)safe_data);  in btf_int_show()
2367 			btf_show_type_value(show, "%u", *(u8 *)safe_data);  in btf_int_show()
2370 		btf_int_bits_show(btf, t, safe_data, bits_offset, show);  in btf_int_show()
2374 	btf_show_end_type(show);  in btf_int_show()
2383 	.show = btf_int_show,
2658 			      u8 bits_offset, struct btf_show *show)  in btf_modifier_show()  argument
2665 	btf_type_ops(t)->show(btf, t, type_id, data, bits_offset, show);  in btf_modifier_show()
2670 			 struct btf_show *show)  in btf_var_show()  argument
2674 	btf_type_ops(t)->show(btf, t, type_id, data, bits_offset, show);  in btf_var_show()
2679 			 struct btf_show *show)  in btf_ptr_show()  argument
2683 	safe_data = btf_show_start_type(show, t, type_id, data);  in btf_ptr_show()
2688 	if (show->flags & BTF_SHOW_PTR_RAW)  in btf_ptr_show()
2689 		btf_show_type_value(show, "0x%px", *(void **)safe_data);  in btf_ptr_show()
2691 		btf_show_type_value(show, "0x%p", *(void **)safe_data);  in btf_ptr_show()
2692 	btf_show_end_type(show);  in btf_ptr_show()
2707 	.show = btf_modifier_show,
2716 	.show = btf_ptr_show,
2757 	.show = btf_df_show,
2918 			     struct btf_show *show)  in __btf_array_show()  argument
2945 	if (!btf_show_start_array_type(show, t, type_id, encoding, data))  in __btf_array_show()
2954 		btf_show_start_array_member(show);  in __btf_array_show()
2956 		elem_ops->show(btf, elem_type, elem_type_id, data,  in __btf_array_show()
2957 			       bits_offset, show);  in __btf_array_show()
2960 		btf_show_end_array_member(show);  in __btf_array_show()
2962 		if (show->state.array_terminated)  in __btf_array_show()
2966 	btf_show_end_array_type(show);  in __btf_array_show()
2971 			   struct btf_show *show)  in btf_array_show()  argument
2973 	const struct btf_member *m = show->state.member;  in btf_array_show()
2980 	if (show->state.depth > 0 && !(show->flags & BTF_SHOW_ZERO)) {  in btf_array_show()
2981 		if (!show->state.depth_check) {  in btf_array_show()
2982 			show->state.depth_check = show->state.depth + 1;  in btf_array_show()
2983 			show->state.depth_to_show = 0;  in btf_array_show()
2985 		__btf_array_show(btf, t, type_id, data, bits_offset, show);  in btf_array_show()
2986 		show->state.member = m;  in btf_array_show()
2988 		if (show->state.depth_check != show->state.depth + 1)  in btf_array_show()
2990 		show->state.depth_check = 0;  in btf_array_show()
2992 		if (show->state.depth_to_show <= show->state.depth)  in btf_array_show()
2999 	__btf_array_show(btf, t, type_id, data, bits_offset, show);  in btf_array_show()
3008 	.show = btf_array_show,
3527 			      struct btf_show *show)  in __btf_struct_show()  argument
3533 	safe_data = btf_show_start_struct_type(show, t, type_id, data);  in __btf_struct_show()
3545 		btf_show_start_member(show, member);  in __btf_struct_show()
3552 			safe_data = btf_show_start_type(show, member_type,  in __btf_struct_show()
3558 						  bitfield_size, show);  in __btf_struct_show()
3559 			btf_show_end_type(show);  in __btf_struct_show()
3562 			ops->show(btf, member_type, member->type,  in __btf_struct_show()
3563 				  data + bytes_offset, bits8_offset, show);  in __btf_struct_show()
3566 		btf_show_end_member(show);  in __btf_struct_show()
3569 	btf_show_end_struct_type(show);  in __btf_struct_show()
3574 			    struct btf_show *show)  in btf_struct_show()  argument
3576 	const struct btf_member *m = show->state.member;  in btf_struct_show()
3583 	if (show->state.depth > 0 && !(show->flags & BTF_SHOW_ZERO)) {  in btf_struct_show()
3584 		if (!show->state.depth_check) {  in btf_struct_show()
3585 			show->state.depth_check = show->state.depth + 1;  in btf_struct_show()
3586 			show->state.depth_to_show = 0;  in btf_struct_show()
3588 		__btf_struct_show(btf, t, type_id, data, bits_offset, show);  in btf_struct_show()
3590 		show->state.member = m;  in btf_struct_show()
3591 		if (show->state.depth_check != show->state.depth + 1)  in btf_struct_show()
3593 		show->state.depth_check = 0;  in btf_struct_show()
3595 		if (show->state.depth_to_show <= show->state.depth)  in btf_struct_show()
3603 	__btf_struct_show(btf, t, type_id, data, bits_offset, show);  in btf_struct_show()
3612 	.show = btf_struct_show,
3742 			  struct btf_show *show)  in btf_enum_show()  argument
3749 	safe_data = btf_show_start_type(show, t, type_id, data);  in btf_enum_show()
3759 		btf_show_type_value(show, "%s",  in btf_enum_show()
3763 		btf_show_end_type(show);  in btf_enum_show()
3768 		btf_show_type_value(show, "%d", v);  in btf_enum_show()
3770 		btf_show_type_value(show, "%u", v);  in btf_enum_show()
3771 	btf_show_end_type(show);  in btf_enum_show()
3780 	.show = btf_enum_show,
3845 			    struct btf_show *show)  in btf_enum64_show()  argument
3852 	safe_data = btf_show_start_type(show, t, type_id, data);  in btf_enum64_show()
3862 		btf_show_type_value(show, "%s",  in btf_enum64_show()
3866 		btf_show_end_type(show);  in btf_enum64_show()
3871 		btf_show_type_value(show, "%lld", v);  in btf_enum64_show()
3873 		btf_show_type_value(show, "%llu", v);  in btf_enum64_show()
3874 	btf_show_end_type(show);  in btf_enum64_show()
3883 	.show = btf_enum64_show,
3970 	.show = btf_df_show,
4019 	.show = btf_df_show,
4083 	.show			= btf_var_show,
4207 			     struct btf_show *show)  in btf_datasec_show()  argument
4213 	if (!btf_show_start_type(show, t, type_id, data))  in btf_datasec_show()
4216 	btf_show_type_value(show, "section (\"%s\") = {",  in btf_datasec_show()
4221 			btf_show(show, ",");  in btf_datasec_show()
4222 		btf_type_ops(var)->show(btf, var, vsi->type,  in btf_datasec_show()
4223 					data + vsi->offset, bits_offset, show);  in btf_datasec_show()
4225 	btf_show_end_type(show);  in btf_datasec_show()
4234 	.show			= btf_datasec_show,
4309 	.show = btf_df_show,
4413 	.show = btf_df_show,
6777 			  struct btf_show *show)  in btf_type_show()  argument
6781 	show->btf = btf;  in btf_type_show()
6782 	memset(&show->state, 0, sizeof(show->state));  in btf_type_show()
6783 	memset(&show->obj, 0, sizeof(show->obj));  in btf_type_show()
6785 	btf_type_ops(t)->show(btf, t, type_id, obj, 0, show);  in btf_type_show()
6788 static void btf_seq_show(struct btf_show *show, const char *fmt,  in btf_seq_show()  argument
6791 	seq_vprintf((struct seq_file *)show->target, fmt, args);  in btf_seq_show()
6817 	struct btf_show show;  member
6822 static void btf_snprintf_show(struct btf_show *show, const char *fmt,  in btf_snprintf_show()  argument
6825 	struct btf_show_snprintf *ssnprintf = (struct btf_show_snprintf *)show;  in btf_snprintf_show()
6828 	len = vsnprintf(show->target, ssnprintf->len_left, fmt, args);  in btf_snprintf_show()
6840 		show->target += len;  in btf_snprintf_show()
6849 	ssnprintf.show.target = buf;  in btf_type_snprintf_show()
6850 	ssnprintf.show.flags = flags;  in btf_type_snprintf_show()
6851 	ssnprintf.show.showfn = btf_snprintf_show;  in btf_type_snprintf_show()
6858 	if (ssnprintf.show.state.status)  in btf_type_snprintf_show()
6859 		return ssnprintf.show.state.status;  in btf_type_snprintf_show()