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Re: [XEN PATCH] automation/eclair: add deviation for MISRA C Rule 17.7
- To: Federico Serafini <federico.serafini@xxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 13 Jun 2024 12:08:48 +0200
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- Cc: consulting@xxxxxxxxxxx, Simone Ballarin <simone.ballarin@xxxxxxxxxxx>, Doug Goldstein <cardoe@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 13 Jun 2024 10:08:57 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 13.06.2024 11:07, Federico Serafini wrote:
> --- a/docs/misra/deviations.rst
> +++ b/docs/misra/deviations.rst
> @@ -364,6 +364,17 @@ Deviations related to MISRA C:2012 Rules:
> by `stdarg.h`.
> - Tagged as `deliberate` for ECLAIR.
>
> + * - R17.7
> + - Not using the return value of a function do not endanger safety if it
> + coincides with the first actual argument.
> + - Tagged as `safe` for ECLAIR. Such functions are:
> + - __builtin_memcpy()
> + - __builtin_memmove()
> + - __builtin_memset()
> + - __cpumask_check()
> + - strlcat()
> + - strlcpy()
These last two aren't similar to strcat/strcpy in what they return, so I'm
not convinced they should be listed here. Certainly not with the "coincides"
justification.
Jan
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