2021-10-20 15:50 UTC-0700 ~ Stanislav Fomichev <sdf@xxxxxxxxxx>
> Otherwise, attaching with bpftool doesn't work with strict section names.
>
> Also, switch to libbpf strict mode to use the latest conventions
> (note, I don't think we have any cli api guarantees?).
We've been trying to avoid breaking the command line arguments so far.
With your patch, there are several types that would need a '/' appended
to the command line argument. As far as I can tell, these are:
kprobe
kretprobe
uprobe
uretprobe
tracepoint
raw_tracepoint
tp
raw_tp
xdp_devmap
xdp_cpumap
(Libbpf requires a '/' for a few other types, but bpftool does not
support loading programs of such types at this time.)
And I find it a bit strange to pass the trailing slash on the command line:
# bpftool prog load ret1.o /sys/fs/bpf/ret1 type kprobe/
Would it be possible to maintain the current syntax? Maybe by keeping a
list of types that need the trailing '/', or by making a second attempt
with the '/' when libbpf complains that it failed to guess the program type?
Quentin
