Re: [PATCH v2] meta: add "Rules-Requires-Root: no" to various recipes

["'Badrikesh Prusty' via isar-users" <isar-users@googlegroups.com>]

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This is the v2 of older 
patch: https://groups.google.com/g/isar-users/c/AtFkLUZ8XUQ

Thanks,
Badrikesh


On Friday, September 19, 2025 at 11:47:49 AM UTC+5:30 Badrikesh Prusty 
wrote:

> From: badrikesh prusty <badrikes...@siemens.com>
>
> Setting "Rules-Requires-Root: no" in the debian/control file avoids
> unnecessarily calling fakeroot in the build environment.
>
> Debian recommends not using fakeroot to build a package if it is not
> required i.e., if a package's build doesn't require any privileged
> operations such as changing ownership to root, installing/modifying
> files as root.
>
> This also fixes hangs observed during fakeroot calls in
> dpkg-buildpackage. References:
> https://github.com/ilbers/isar/issues/113
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1114644
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1072521
>
> Signed-off-by: Badrikesh Prusty <badrikes...@siemens.com>
> ---
> RECIPE-API-CHANGELOG.md | 7 +++++++
> .../recipes-bsp/optee-examples/files/debian/control.tmpl | 1 +
> meta/recipes-bsp/optee-ftpm/files/debian/control.tmpl | 1 +
> meta/recipes-bsp/optee-os/files/debian/control.tmpl | 1 +
> .../trusted-firmware-a/files/debian/control.tmpl | 1 +
> meta/recipes-bsp/u-boot/files/debian/control.tmpl | 1 +
> meta/recipes-kernel/linux-module/files/debian/control.tmpl | 1 +
> meta/recipes-kernel/linux/files/debian/control.tmpl | 1 +
> 8 files changed, 14 insertions(+)
>
> diff --git a/RECIPE-API-CHANGELOG.md b/RECIPE-API-CHANGELOG.md
> index 92e7811c..07e17aff 100644
> --- a/RECIPE-API-CHANGELOG.md
> +++ b/RECIPE-API-CHANGELOG.md
> @@ -741,3 +741,10 @@ By setting `MS_TPM_20_REF_DIR` in an optee-ftpm 
> recipe, it is now possible to
> use the new optee_ftpm code base from the OP-TEE project. That variable 
> has to
> point to a subdir in `WORKDIR` which contains the unpacked ms-tpm-20-ref 
> source
> code.
> +
> +### Avoid unnecessary use of fakeroot
> +
> +Set `Rules-Requires-Root: no` in `debian/control` files to prevent 
> unnecessary
> +invocation of fakeroot during package builds. This follows Debian 
> guidelines
> +recommending not to use fakeroot when no privileged operations (e.g., 
> `chown`,
> +root file modifications) are required. 
> diff --git 
> a/meta-isar/recipes-bsp/optee-examples/files/debian/control.tmpl 
> b/meta-isar/recipes-bsp/optee-examples/files/debian/control.tmpl
> index 85c9735f..9b930157 100644
> --- a/meta-isar/recipes-bsp/optee-examples/files/debian/control.tmpl
> +++ b/meta-isar/recipes-bsp/optee-examples/files/debian/control.tmpl
> @@ -4,6 +4,7 @@ Priority: optional
> Standards-Version: 3.9.6
> Build-Depends: debhelper-compat (= ${DEBIAN_COMPAT}), 
> ${DEBIAN_BUILD_DEPENDS}
> Maintainer: ISAR project <isar-...@googlegroups.com>
> +Rules-Requires-Root: no
>
> Package: ${PN}-acipher-ta
> Architecture: ${DISTRO_ARCH}
> diff --git a/meta/recipes-bsp/optee-ftpm/files/debian/control.tmpl 
> b/meta/recipes-bsp/optee-ftpm/files/debian/control.tmpl
> index e6af7554..3e8e6920 100644
> --- a/meta/recipes-bsp/optee-ftpm/files/debian/control.tmpl
> +++ b/meta/recipes-bsp/optee-ftpm/files/debian/control.tmpl
> @@ -4,6 +4,7 @@ Priority: optional
> Standards-Version: 3.9.6
> Maintainer: Unknown maintainer <unk...@example.com>
> Build-Depends: debhelper-compat (= ${DEBIAN_COMPAT}), 
> ${DEBIAN_BUILD_DEPENDS}
> +Rules-Requires-Root: no
>
> Package: ${PN}
> Architecture: any
> diff --git a/meta/recipes-bsp/optee-os/files/debian/control.tmpl 
> b/meta/recipes-bsp/optee-os/files/debian/control.tmpl
> index 7bcd6edb..2a3076d3 100644
> --- a/meta/recipes-bsp/optee-os/files/debian/control.tmpl
> +++ b/meta/recipes-bsp/optee-os/files/debian/control.tmpl
> @@ -4,6 +4,7 @@ Priority: optional
> Standards-Version: 3.9.6
> Build-Depends: debhelper-compat (= ${DEBIAN_COMPAT}), 
> ${DEBIAN_BUILD_DEPENDS}
> Maintainer: ISAR project <isar-...@googlegroups.com>
> +Rules-Requires-Root: no
>
> Package: ${DEBIAN_PACKAGE_NAME}
> Architecture: ${DISTRO_ARCH}
> diff --git a/meta/recipes-bsp/trusted-firmware-a/files/debian/control.tmpl 
> b/meta/recipes-bsp/trusted-firmware-a/files/debian/control.tmpl
> index cf4607e3..5de639d9 100644
> --- a/meta/recipes-bsp/trusted-firmware-a/files/debian/control.tmpl
> +++ b/meta/recipes-bsp/trusted-firmware-a/files/debian/control.tmpl
> @@ -4,6 +4,7 @@ Priority: optional
> Standards-Version: 3.9.6
> Build-Depends: debhelper-compat (= ${DEBIAN_COMPAT}), 
> ${DEBIAN_BUILD_DEPENDS}
> Maintainer: ISAR project <isar-...@googlegroups.com>
> +Rules-Requires-Root: no
>
> Package: trusted-firmware-a-${TF_A_NAME}
> Architecture: ${DISTRO_ARCH}
> diff --git a/meta/recipes-bsp/u-boot/files/debian/control.tmpl 
> b/meta/recipes-bsp/u-boot/files/debian/control.tmpl
> index 006982c2..58f59ce6 100644
> --- a/meta/recipes-bsp/u-boot/files/debian/control.tmpl
> +++ b/meta/recipes-bsp/u-boot/files/debian/control.tmpl
> @@ -4,6 +4,7 @@ Priority: optional
> Standards-Version: 3.9.6
> Build-Depends: debhelper-compat (= ${DEBIAN_COMPAT}), 
> ${DEBIAN_BUILD_DEPENDS}
> Maintainer: ISAR project <isar-...@googlegroups.com>
> +Rules-Requires-Root: no
>
> Package: u-boot-${MACHINE}
> Architecture: ${DISTRO_ARCH}
> diff --git a/meta/recipes-kernel/linux-module/files/debian/control.tmpl 
> b/meta/recipes-kernel/linux-module/files/debian/control.tmpl
> index 45fcbc0e..95e6e84a 100644
> --- a/meta/recipes-kernel/linux-module/files/debian/control.tmpl
> +++ b/meta/recipes-kernel/linux-module/files/debian/control.tmpl
> @@ -4,6 +4,7 @@ Priority: optional
> Standards-Version: 3.9.6
> Build-Depends: debhelper-compat (= ${DEBIAN_COMPAT}), 
> ${DEBIAN_BUILD_DEPENDS}
> Maintainer: ${MAINTAINER}
> +Rules-Requires-Root: no
>
> Package: ${PN}
> Architecture: any
> diff --git a/meta/recipes-kernel/linux/files/debian/control.tmpl 
> b/meta/recipes-kernel/linux/files/debian/control.tmpl
> index a79b86c4..2097a56d 100644
> --- a/meta/recipes-kernel/linux/files/debian/control.tmpl
> +++ b/meta/recipes-kernel/linux/files/debian/control.tmpl
> @@ -4,6 +4,7 @@ Priority: optional
> Maintainer: ${MAINTAINER}
> Build-Depends: debhelper-compat (= ${DEBIAN_COMPAT}), bc, kmod, cpio, 
> ${KBUILD_DEPENDS}
> Homepage: http://www.kernel.org/
> +Rules-Requires-Root: no
>
> Package: linux-image-${KERNEL_NAME_PROVIDED}
> Build-Profiles: <kernel>
> -- 
> 2.47.3
>
>

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