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-rw-r--r--tools/bpf/bpftool/gen.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c
index b59d26e89367..8a4c2b3b0cd6 100644
--- a/tools/bpf/bpftool/gen.c
+++ b/tools/bpf/bpftool/gen.c
@@ -302,8 +302,11 @@ static int do_skeleton(int argc, char **argv)
opts.object_name = obj_name;
obj = bpf_object__open_mem(obj_data, file_sz, &opts);
if (IS_ERR(obj)) {
+ char err_buf[256];
+
+ libbpf_strerror(PTR_ERR(obj), err_buf, sizeof(err_buf));
+ p_err("failed to open BPF object file: %s", err_buf);
obj = NULL;
- p_err("failed to open BPF object file: %ld", PTR_ERR(obj));
goto out;
}