Alexei Starovoitov 5cbd3fe3a9 libbpf: Introduce bpf_ksym_exists() macro.
Introduce bpf_ksym_exists() macro that can be used by BPF programs
to detect at load time whether particular ksym (either variable or kfunc)
is present in the kernel.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230317201920.62030-4-alexei.starovoitov@gmail.com
2023-03-17 15:46:00 -07:00
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2022-08-07 17:52:35 -07:00