On 1/26/24 6:19 PM, Bryce Kahle wrote:
Enables a user to generate minimized kernel module BTF. If an eBPF program probes a function within a kernel module or uses types that come from a kernel module, split BTF is required. The split module BTF contains only the BTF types that are unique to the module. It will reference the base/vmlinux BTF types and always starts its type IDs at X+1 where X is the largest type ID in the base BTF. Minimization allows a user to ship only the types necessary to do relocations for the program(s) in the provided eBPF object file(s). A minimized module BTF will still not contain vmlinux BTF types, so you should always minimize the vmlinux file first, and then minimize the kernel module file. Example: bpftool gen min_core_btf vmlinux.btf vm-min.btf prog.bpf.o bpftool -B vm-min.btf gen min_core_btf mod.btf mod-min.btf prog.bpf.o Signed-off-by: Bryce Kahle <bryce.kahle@xxxxxxxxxxxxx>
Looks like the patch got whitespace damaged, could you try sending with git-send-email? Thanks, Daniel
