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Re: [PATCH 16/17] xen/build: address violation of MISRA C Directive 4.10
- To: Alessandro Zucchelli <alessandro.zucchelli@xxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 3 Jul 2024 15:32:41 +0200
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- Cc: consulting@xxxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Wed, 03 Jul 2024 13:32:57 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 01.07.2024 15:46, Alessandro Zucchelli wrote:
> --- a/xen/build.mk
> +++ b/xen/build.mk
> @@ -18,6 +18,8 @@ quiet_cmd_compile.h = UPD $@
> define cmd_compile.h
> if [ ! -r $@ -o -O $@ ]; then \
> cat .banner; \
> + echo '#ifndef INCLUDE_XEN_COMPILE_H' >> $(dot-target).tmp; \
Leaving aside the question on the INCLUDE_ prefix (see earlier comments
on another patch in this series), I wonder what good a guard does here
in the first place. But anyway, I expect this again gets us into "we
need to mechanically and slavishly follow the rules" territory.
However, shouldn't this first "echo" use > in place of >>, to prevent
surprises when e.g. an earlier build was interrupted at exactly the
"right" point?
Jan
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