Re: [Xen-devel] [PATCH DOCDAY] netif.h: describe request/response structures in terms of binary layout

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 25/02/15 12:16, Ian Campbell wrote:
> In RFC style, rather than relying on the implicit assumptions of a
> particular C ABI.
>
> I have also confirmed, using the Python gdb extension technique in
> [0], that the struct offsets (in a Linux binary at least) are the same
> as described here.
>
> I took the opportunity to also confirm that x86_32, x86_64, arm32 and
> arm64 are all the same.
>
> This highlighted that struct netif_rx_request was missing some
> explicit padding, which is added here.
>
> Lastly, fixup some struct names to allow the generated docs to
> properly hyperlink, mainly by adding the _t to type names where
> appropriate, but also s/netif_tx_extra/netif_extra_info_t/.
>
> [] 
> http://stackoverflow.com/questions/9788679/how-to-get-the-relative-adress-of-a-field-in-a-structure-dump-c,

`pahole` from the dwarves package is your friend.

~Andrew


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel