Re: [PATCH v2] kbuild: add debug package to pacman PKGBUILD

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On Sat, Aug 17, 2024 at 09:11:47AM -0600, Jose Fernandez wrote:
> Add a new debug package to the PKGBUILD for the pacman-pkg target. The
> debug package includes the non-stripped vmlinux file, providing access
> to debug symbols needed for kernel debugging and profiling. The vmlinux
> file will be installed to /usr/src/debug/${pkgbase}. The debug package
> will be built by default and can be excluded by overriding PACMAN_EXTRAPACKAGES.
> 
> Signed-off-by: Jose Fernandez <jose.fernandez@xxxxxxxxx>
> Reviewed-by: Peter Jung <ptr1337@xxxxxxxxxxx>
> ---
> v1->v2:
> - Use the new PACMAN_EXTRAPACKAGES [1] variable to allow users to disable the
> debug package if desired, instead of always including it.
> 
> [1] https://lore.kernel.org/lkml/20240813185900.GA140556@thelio-3990X/T/
> 
>  scripts/package/PKGBUILD | 11 ++++++++++-
>  1 file changed, 10 insertions(+), 1 deletion(-)
> 
> diff --git a/scripts/package/PKGBUILD b/scripts/package/PKGBUILD
> index fbd7eb10a52c..d40d282353de 100644
> --- a/scripts/package/PKGBUILD
> +++ b/scripts/package/PKGBUILD
> @@ -5,7 +5,7 @@
>  pkgbase=${PACMAN_PKGBASE:-linux-upstream}
>  pkgname=("${pkgbase}")
>  
> -_extrapackages=${PACMAN_EXTRAPACKAGES-headers api-headers}
> +_extrapackages=${PACMAN_EXTRAPACKAGES-headers api-headers debug}
>  for pkg in $_extrapackages; do
>  	pkgname+=("${pkgbase}-${pkg}")
>  done
> @@ -106,6 +106,15 @@ _package-api-headers() {
>  	${MAKE} headers_install INSTALL_HDR_PATH="${pkgdir}/usr"
>  }
>  
> +_package-debug(){
> +	pkgdesc="Non-stripped vmlinux file for the ${pkgdesc} kernel"
> +	depends=(${pkgbase}-headers)
> +
> +	cd "${objtree}"
> +	mkdir -p "$pkgdir/usr/src/debug/${pkgbase}"
> +	install -Dt "$pkgdir/usr/src/debug/${pkgbase}" -m644 vmlinux
> +}
> +

If you like to also include debug stuff for kernel modules, you might
want to have a look at scripts/package/builddeb's install_linux_image_dbg.

Kind regards,
Nicolas




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