lib/bpf/libbpf.c

590 			/* target btf_id of the corresponding kernel var. */
1339 			pr_warn("struct_ops init: Cannot resolve var type_id %u in DATASEC %s\n",
1393 			pr_warn("struct_ops init: var %s is beyond the end of DATASEC %s\n",
1667 			pr_warn("failed to get sym name string for var %s\n", name);
2360 	case BTF_KIND_VAR: return "var";
2810 	const struct btf_type *var, *def;
2818 	var = btf__type_by_id(obj->btf, vi->type);
2819 	var_extra = btf_var(var);
2820 	map_name = btf__name_by_offset(obj->btf, var->name_off);
2830 	if (!btf_is_var(var)) {
2831 		pr_warn("map '%s': unexpected var kind %s.\n",
2832 			map_name, btf_kind_str(var));
2841 	def = skip_mods_and_typedefs(obj->btf, var->type, NULL);
2844 			map_name, btf_kind_str(var));
3313 		struct btf_var *var;
3323 		var = btf_var(t_var);
3324 		if (var->linkage == BTF_VAR_STATIC || var->linkage == BTF_VAR_GLOBAL_EXTERN)
3353 			var->linkage = BTF_VAR_STATIC;
4132 	/* No func in ksyms sec.  No need to add dummy var. */
4142 		pr_warn("cannot create a dummy_ksym var\n");
4355 				pr_warn("failed to find extern definition for BTF var '%s'\n",
4493 		pr_warn("prog '%s': invalid relo against '%s' in special section 0x%x; forgot to initialize global var?..\n",
7082 	const struct btf_type *sec, *var, *def;
7174 		var = btf__type_by_id(obj->btf, vi->type);
7175 		def = skip_mods_and_typedefs(obj->btf, var->type, NULL);
8158 		pr_warn("extern (var ksym) '%s': not found in kernel BTF\n",
8181 		pr_warn("extern (var ksym) '%s': incompatible types, expected [%d] %s %s, but kernel has [%d] %s %s\n",
8191 	pr_debug("extern (var ksym) '%s': resolved to [%d] %s %s\n",
10125 	struct btf_var_secinfo *var;
10144 	/* verify datasec has at least one var */
10152 	/* verify last var in the datasec is an array */
10153 	var = &btf_var_secinfos(datasec_type)[vlen - 1];
10154 	var_type = btf_type_by_id(btf, var->type);
10157 		pr_warn("map '%s': cannot be resized, last var must be an array\n",
10165 	if (element_sz <= 0 || (size - var->offset) % element_sz != 0) {
10172 	nr_elements = (size - var->offset) / element_sz;
10181 	var = &btf_var_secinfos(datasec_type)[vlen - 1];
10182 	var_type = btf_type_by_id(btf, var->type);
10186 	var->size = size - var->offset;
13769 	struct btf_var_secinfo *var;
13807 		var = btf_var_secinfos(map_type);
13808 		for (i = 0; i < len; i++, var++) {
13809 			var_type = btf__type_by_id(btf, var->type);
13812 				*var_skel->addr = map->mmaped + var->offset;