add support for kprobe session #1623
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olsajiri
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testdata/sh/update-kernel-deps.sh
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| curl -fL "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/plain/tools/lib/bpf/libbpf.c?h=v$KERNEL_VERSION" -o "$tmp/libbpf.c" | ||
| if [ -d $KERNEL_VERSION ]; then | ||
| # Copy libbpf/vmlinux/bpf_testmod from local directory | ||
| cp $KERNEL_VERSION/libbpf.c $tmp |
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Are these paths correct? ie. libbpf typically sits in tools/lib/bpf/libbpf.c. Do you copy it there manually?
Same for bpf_testmod.ko, isn't it somewhere in selftests?
Asking because I'd like to use it too, would be nice if this works on a default Linux tree.
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sorry I meant to create draft ;-) I'm including this branch in tetragon to enable and use kprobe.session programs
and then I wanted to do the official 6.11 interface update if you wouldn't beat me to it
I'm using the that KERNEL_VERSION change to use my kernel with changed interface for testing
and I usually do not have the kernel tree on the same machine so I just copy those files in the
directory and feed it to update-kernel-deps.sh script
I'm not clear on how you guys add the new ci kernel though.. but I can find out ;-)
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I'm using the that KERNEL_VERSION change to use my kernel with changed interface for testing and I usually do not have the kernel tree on the same machine so I just copy those files in the directory and feed it to update-kernel-deps.sh script
I see. In that case, would you be willing to adjust your workflow to mount the tree locally, e.g. using sshfs and running the script against the mount? I think most folks would iterate using virtme locally, so this could still be useful for them.
I'm not clear on how you guys add the new ci kernel though.. but I can find out ;-)
Images are built and published by https://github.com/cilium/ci-kernels. rc's are pulled from Linus' tree, mainline is pulled from kernel.org (see https://github.com/cilium/ci-kernels/blob/main/download.sh). No bpf-next currently, maybe we can consider this at some point. (so you'll have to wait for an rc at least 😄)
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Signed-off-by: Jiri Olsa <[email protected]>
Adding support to attach kprobe multi link as session by adding Session bool to KprobeMultiOptions. When set true it attaches the link with BPF_TRACE_KPROBE_SESSION attach_type. Signed-off-by: Jiri Olsa <[email protected]>
kprobe session support plus 6.11 kernel update