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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.