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libbpf: Use probe_name for legacy kprobe 

Fix a bug in commit 46ed5fc33d, which wrongly used the
func_name instead of probe_name to register legacy kprobe.

Fixes: 46ed5fc33d ("libbpf: Refactor and simplify legacy kprobe code")
Co-developed-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Qiang Wang <wangqiang.wq.frank@bytedance.com>
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Hengqi Chen <hengqi.chen@gmail.com>
Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
Link: https://lore.kernel.org/bpf/20211227130713.66933-1-wangqiang.wq.frank@bytedance.com
This commit is contained in:
Qiang Wang 2021-12-27 21:07:12 +08:00 committed by Andrii Nakryiko
parent 7218c28c87
commit 71cff670ba
1 changed files with 1 additions and 1 deletions
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2
tools/lib/bpf/libbpf.c
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@ -10017,7 +10017,7 @@ bpf_program__attach_kprobe_opts(const struct bpf_program *prog,
gen_kprobe_legacy_event_name(probe_name, sizeof(probe_name),
func_name, offset);
legacy_probe = strdup(func_name);
legacy_probe = strdup(probe_name);
if (!legacy_probe)
return libbpf_err_ptr(-ENOMEM);