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

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Andrii Nakryiko 2019-12-13 17:43:26 -08:00 • committed by Alexei Starovoitov

parent 0d13bfce02

commit d7a18ea7e8

4 changed files with 153 additions and 38 deletions

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181

tools/lib/bpf/libbpf.c

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2

tools/lib/bpf/libbpf.h

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tools/lib/bpf/libbpf.map

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6

tools/testing/selftests/bpf/prog_tests/probe_user.c

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