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Message-ID: <20240829180106.GA3382912@thelio-3990X>
Date: Thu, 29 Aug 2024 11:01:06 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Tony Battersby <tonyb@...ernetics.com>
Cc: Masahiro Yamada <masahiroy@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>,
	Daniel Gomez <da.gomez@...sung.com>, linux-kbuild@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kbuild: remove recent dependency on "truncate" program

On Thu, Aug 29, 2024 at 09:51:25AM -0400, Tony Battersby wrote:
> Remove the recently-added dependency on the truncate program for
> building the kernel.  truncate is not available when building the kernel
> under Yocto.  It could be added, but it would be better just to avoid
> the unnecessary dependency.
> 
> Fixes: 1472464c6248 ("kbuild: avoid scripts/kallsyms parsing /dev/null")
> Signed-off-by: Tony Battersby <tonyb@...ernetics.com>

Seems reasonable to me and appears to generate an identical result for
me.

Reviewed-by: Nathan Chancellor <nathan@...nel.org>

> ---
>  scripts/link-vmlinux.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
> index 070a319140e8..c27b4e969f20 100755
> --- a/scripts/link-vmlinux.sh
> +++ b/scripts/link-vmlinux.sh
> @@ -215,7 +215,7 @@ kallsymso=
>  strip_debug=
>  
>  if is_enabled CONFIG_KALLSYMS; then
> -	truncate -s0 .tmp_vmlinux.kallsyms0.syms
> +	true > .tmp_vmlinux.kallsyms0.syms
>  	kallsyms .tmp_vmlinux.kallsyms0.syms .tmp_vmlinux0.kallsyms
>  fi
>  
> 
> base-commit: 3e9bff3bbe1355805de919f688bef4baefbfd436
> -- 
> 2.25.1
> 

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