fix symtab map bad offset

mld/symtab.c

@@ -55,12 +55,13 @@ int symtab_get(struct symbol_table *symtab, Elf32_Sym **res, const char *name,
 		const char *symname = symtab->strtab->data + B32(sym->st_name);
 		if (strcmp(name, symname) != 0)
 			continue;
-
 		// only allow retrevial of local variables from the
 		// same object
 		if (sym->st_info >> 4 != STB_GLOBAL && symtab->map != NULL &&
 			obj_idx >= 0) {
-			struct object *obj = symtab->map->meta[i];
+			// we need to change the index by one since
+			// symbol tables always start will a NULl symbol
+			struct object *obj = symtab->map->meta[i - 1];
 			if (obj->index != (uint32_t)obj_idx)
 				continue;
 		} else if (obj_idx < 0 && sym->st_info >> 4 != STB_GLOBAL) {