Re: [Xen-devel] [PATCH v5] coverity: Store the modelling file in the source tree.

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

On 01/23/2014 02:28 PM, Andrew Cooper wrote:
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> CC: Keir Fraser <keir@xxxxxxx>
> CC: Jan Beulich <JBeulich@xxxxxxxx>
> CC: Tim Deegan <tim@xxxxxxx>
> CC: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
> CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
> CC: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
>
> ---
>
> George:
>    This is just documentation, and it would be nice to include it as part of
>    the 4.4 release.
> ---
>   misc/coverity_model.c |   98 +++++++++++++++++++++++++++++++++++++++++++++++++
>   1 file changed, 98 insertions(+)
>   create mode 100644 misc/coverity_model.c
>
> diff --git a/misc/coverity_model.c b/misc/coverity_model.c
> new file mode 100644
> index 0000000..418d25e
> --- /dev/null
> +++ b/misc/coverity_model.c
> @@ -0,0 +1,98 @@
> +/* Coverity Scan model
> + *
> + * This is a modelling file for Coverity Scan. Modelling helps to avoid false
> + * positives.
> + *
> + * - A model file can't import any header files.
> + * - Therefore only some built-in primitives like int, char and void are
> + *   available but not NULL etc.
> + * - Mode-ling doesn't need full structs and typedefs. Rudimentary structs
> + *   and similar types are sufficient.
> + * - An uninitialized local pointer is not an error. It signifies that the
> + *   variable could be either NULL or have some data.
> + *
> + * Coverity Scan doesn't pick up modifications automatically. The model file
> + * must be uploaded by an admin in the analysis.
So this file isn't compiled; it's manually uploaded as part of the 
coverity scanning process; and could be provided out-of-band, but it's 
just convenient to put it in the tree, particularly if any of these 
things should change as things go forward.  (Hence comparing it to 
documentation.)  Is that right?
 -George


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