The binary_path parameter is required for bpf_program__attach_usdt().
Error out when user attach USDT probe without specifying a binary_path.
Signed-off-by: Hengqi Chen <hengqi.chen@xxxxxxxxx>
---
tools/lib/bpf/libbpf.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 8a45a84eb9b2..5e4153c5b0a6 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -10686,6 +10686,12 @@ struct bpf_link *bpf_program__attach_usdt(const struct bpf_program *prog,
return libbpf_err_ptr(-EINVAL);
}
+ if (!binary_path) {
+ pr_warn("prog '%s': USDT attach requires binary_path\n",
+ prog->name);
+ return libbpf_err_ptr(-EINVAL);
+ }
+
if (!strchr(binary_path, '/')) {
err = resolve_full_path(binary_path, resolved_path, sizeof(resolved_path));
if (err) {
--
2.30.2
