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Add missing program type feature probes#890

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ti-mo merged 2 commits intocilium:masterfrom
rgo3:add-missing-prog-probes
Dec 23, 2022
Merged

Add missing program type feature probes#890
ti-mo merged 2 commits intocilium:masterfrom
rgo3:add-missing-prog-probes

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@rgo3 rgo3 commented Dec 15, 2022

With this PR we support feature probes for all program types the library currently supports.

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Exciting!

rgo3 added 2 commits December 23, 2022 12:05
With this commit it is possible to set `btf.funcInfoMeta` on
asm.Instructions from outside the `btf` package.

Signed-off-by: Robin Gögge <[email protected]>
Hardcode bpf_init as the fentry probe target. It's been part of the kernel
since 4.4 (torvalds/linux@b2197755b263), has been completely untouched,
and has a simple signature. For probing a BPF program type, it makes sense
to target a symbol from the BPF subsystem.

Signed-off-by: Robin Gögge <[email protected]>
Signed-off-by: Timo Beckers <[email protected]>
@ti-mo ti-mo force-pushed the add-missing-prog-probes branch from 52a5e14 to 6e188e9 Compare December 23, 2022 11:06
@ti-mo ti-mo merged commit c7ba7f0 into cilium:master Dec 23, 2022
@rgo3 rgo3 deleted the add-missing-prog-probes branch December 23, 2022 11:15
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3 participants