resolve_btfids: rename object btf field to btf_path

Rename the member of `struct object` holding the path to BTF data if
provided via --btf arg. `btf_path` is less ambiguous.

Signed-off-by: Ihor Solodrai <[email protected]>

Author: theihor

tools/bpf/resolve_btfids/main.c

@@ -113,7 +113,7 @@ struct btf_id {
 
 struct object {
 	const char *path;
-	const char *btf;
+	const char *btf_path;
 	const char *base_btf_path;
 
 	struct {
@@ -550,11 +550,11 @@ static int symbols_resolve(struct object *obj)
 		}
 	}
 
-	btf = btf__parse_split(obj->btf ?: obj->path, base_btf);
+	btf = btf__parse_split(obj->btf_path ?: obj->path, base_btf);
 	err = libbpf_get_error(btf);
 	if (err) {
 		pr_err("FAILED: load BTF from %s: %s\n",
-			obj->btf ?: obj->path, strerror(-err));
+			obj->btf_path ?: obj->path, strerror(-err));
 		goto out;
 	}
 
@@ -790,7 +790,7 @@ int main(int argc, const char **argv)
 	struct option btfid_options[] = {
 		OPT_INCR('v', "verbose", &verbose,
 			 "be more verbose (show errors, etc)"),
-		OPT_STRING(0, "btf", &obj.btf, "BTF data",
+		OPT_STRING(0, "btf", &obj.btf_path, "BTF data",
 			   "BTF data"),
 		OPT_STRING('b', "btf_base", &obj.base_btf_path, "file",
 			   "path of file providing base BTF"),