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libbpf: Add generic bpf_program__attach()

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Generalize BPF program attaching and allow libbpf to auto-detect type (and
extra parameters, where applicable) and attach supported BPF program types
based on program sections. Currently this is supported for:
- kprobe/kretprobe;
- tracepoint;
- raw tracepoint;
- tracing programs (typed raw TP/fentry/fexit).

More types support can be trivially added within this framework.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20191214014341.3442258-3-andriin@fb.com
This commit is contained in:
Andrii Nakryiko
2019-12-13 17:43:26 -08:00
committed by Andrii Nakryiko
parent 4f3c7b3e13
commit f7af143516
3 changed files with 151 additions and 34 deletions
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2
src/libbpf.map
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@@ -210,4 +210,6 @@ LIBBPF_0.0.6 {
} LIBBPF_0.0.5;
LIBBPF_0.0.7 {
global:
bpf_program__attach;
} LIBBPF_0.0.6;