BPF (Debugging with GDB)

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21.3.3 BPF

target sim [simargs] …
The GDB BPF simulator accepts the following optional arguments.
--skb-data-offset=offset
Tell the simulator the offset, measured in bytes, of the skb_data field in the kernel struct sk_buff structure. This offset is used by some BPF specific-purpose load/store instructions. Defaults to 0.