libbpf: Introduce legacy kprobe events support

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Allow kprobe tracepoint events creation through legacy interface, as the
kprobe dynamic PMUs support, used by default, was only created in v4.17.

Store legacy kprobe name in struct bpf_perf_link, instead of creating
a new "subclass" off of bpf_perf_link. This is ok as it's just two new
fields, which are also going to be reused for legacy uprobe support in
follow up patches.

Signed-off-by: Rafael David Tinoco <rafaeldtinoco@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210912064844.3181742-1-rafaeldtinoco@gmail.com

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Rafael David Tinoco 2021-09-12 03:48:44 -03:00 • committed by Andrii Nakryiko

parent 2f38304127

commit ca304b40c2

1 changed files with 124 additions and 4 deletions

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tools/lib/bpf/libbpf.c

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