Commit 5a3941f8 authored by Jiri Olsa's avatar Jiri Olsa Committed by Andrii Nakryiko
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libbpf: Fix error message in attach_kprobe_session 



We just failed to retrieve pattern, so we need to print spec instead.

Fixes: 2ca178f0 ("libbpf: Add support for kprobe session attach")
Reported-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240502075541.1425761-1-jolsa@kernel.org
parent ac2f438c

tools/lib/bpf/libbpf.c

+1 −1
Original line number Diff line number Diff line
@@ -11605,7 +11605,7 @@ static int attach_kprobe_session(const struct bpf_program *prog, long cookie, 
	spec = prog->sec_name + sizeof("kprobe.session/") - 1;

	n = sscanf(spec, "%m[a-zA-Z0-9_.*?]", &pattern);

	if (n < 1) {

		pr_warn("kprobe session pattern is invalid: %s\n", pattern);

		pr_warn("kprobe session pattern is invalid: %s\n", spec);

		return -EINVAL;

	}