Re: [PATCH 5/9] buildchroot-cross: Initial implementation

[Henning Schild <henning.schild@siemens.com>]

Am Wed, 13 Jun 2018 15:08:03 +0200
schrieb Alexander Smirnov <asmirnov@ilbers.de>:

> Add initial generation of buildchroot for cross-compilation.
> 
> Signed-off-by: Alexander Smirnov <asmirnov@ilbers.de>
> ---
>  meta/conf/isar-bitbake.conf                        |  1 +
>  .../buildchroot/buildchroot-cross.bb               | 53
> ++++++++++++++++++++++ .../buildchroot/files/build-cross.sh
> | 29 ++++++++++++ 3 files changed, 83 insertions(+)
>  create mode 100644
> meta/recipes-devtools/buildchroot/buildchroot-cross.bb create mode
> 100644 meta/recipes-devtools/buildchroot/files/build-cross.sh
> 
> diff --git a/meta/conf/isar-bitbake.conf b/meta/conf/isar-bitbake.conf
> index ead7798..1412508 100644
> --- a/meta/conf/isar-bitbake.conf
> +++ b/meta/conf/isar-bitbake.conf
> @@ -22,6 +22,7 @@ WORKDIR =
> "${TMPDIR}/work/${DISTRO}-${DISTRO_ARCH}/${PF}" DL_DIR =
> "${TOPDIR}/downloads" SSTATE_DIR ?= "${TMPDIR}/sstate-cache"
>  BUILDCHROOT_DIR =
> "${TMPDIR}/work/${DISTRO}-${DISTRO_ARCH}/buildchroot/rootfs"
> +BUILDCHROOT_CROSS_DIR =
> "${TMPDIR}/work/${DISTRO}-${DISTRO_ARCH}/buildchroot-cross/rootfs"
> CACHE = "${TMPDIR}/cache" OVERRIDES_append =
> ":${DISTRO}:${DISTRO_ARCH}" diff --git
> a/meta/recipes-devtools/buildchroot/buildchroot-cross.bb
> b/meta/recipes-devtools/buildchroot/buildchroot-cross.bb new file
> mode 100644 index 0000000..935a626 --- /dev/null
> +++ b/meta/recipes-devtools/buildchroot/buildchroot-cross.bb
> @@ -0,0 +1,53 @@
> +# Root filesystem for packages cross-building
> +#
> +# This software is a part of ISAR.
> +# Copyright (C) 2015-2016 ilbers GmbH
> +
> +DESCRIPTION = "Isar development cross-filesystem"
> +
> +LICENSE = "gpl-2.0"
> +LIC_FILES_CHKSUM =
> "file://${LAYERDIR_isar}/licenses/COPYING.GPLv2;md5=751419260aa954499f7abaabaa882bbe"
> + +FILESPATH_prepend := "${THISDIR}/files:"

Same as seen in Maxims patches.
No need to prepend FILESPATH, set PV with proper filename

I guess here some "hacks" are required because other recipes will need
to find that and can not know PV and stuff.

> +SRC_URI = "file://configscript.sh \
> +           file://build-cross.sh"
> +PV = "1.0"
> +
> +inherit isar-bootstrap-helper
> +
> +BUILDCHROOT_CROSS_PREINSTALL ?= "gcc-multilib \
> +                                 make \
> +                                 build-essential \
> +                                 debhelper \
> +                                 autotools-dev \
> +                                 dpkg \
> +                                 locales \
> +                                 docbook-to-man \
> +                                 apt \
> +                                 automake \
> +                                 devscripts \
> +                                 equivs"
> +
> +# TODO: make this inclusion depending on the target arch
> +BUILDCHROOT_CROSS_PREINSTALL += "binutils"
> +
> +WORKDIR = "${TMPDIR}/work/${DISTRO}-${DISTRO_ARCH}/${PN}"

WORKDIR = ${BUILDCHROOT_CROSS_DIR}/../

maybe?

> +do_build[stamp-extra-info] = "${DISTRO}-${DISTRO_ARCH}"
> +do_build[root_cleandirs] = "${BUILDCHROOT_CROSS_DIR} \
> +                            ${BUILDCHROOT_CROSS_DIR}/isar-apt \
> +                            ${BUILDCHROOT_CROSS_DIR}/downloads \
> +                            ${BUILDCHROOT_CROSS_DIR}/home/builder"
> +do_build[depends] = "isar-apt:do_cache_config
> isar-bootstrap-host:do_deploy" +
> +do_build() {
> +    setup_root_file_system --host-arch "${BUILDCHROOT_CROSS_DIR}"
> ${BUILDCHROOT_CROSS_PREINSTALL} +
> +    # Install package builder script
> +    sudo chmod -R a+rw "${BUILDCHROOT_CROSS_DIR}/home/builder"
> +    sudo install -m 755 ${WORKDIR}/build-cross.sh
> ${BUILDCHROOT_CROSS_DIR}/build.sh +
> +    # Configure root filesystem
> +    sudo install -m 755 ${WORKDIR}/configscript.sh
> ${BUILDCHROOT_CROSS_DIR}
> +    sudo chroot ${BUILDCHROOT_CROSS_DIR} /configscript.sh
> +}
> diff --git a/meta/recipes-devtools/buildchroot/files/build-cross.sh
> b/meta/recipes-devtools/buildchroot/files/build-cross.sh new file
> mode 100644 index 0000000..8c3ddaf
> --- /dev/null
> +++ b/meta/recipes-devtools/buildchroot/files/build-cross.sh
> @@ -0,0 +1,29 @@
> +#!/bin/bash
> +#
> +# This software is a part of ISAR.
> +# Copyright (C) 2015-2017 ilbers GmbH
> +# Copyright (c) 2018 Siemens AG
> +
> +set -e
> +
> +# Go to build directory
> +cd $1
> +
> +# Add target architecture
> +dpkg --add-architecture $2
> +
> +# To avoid Perl locale warnings:
> +export LC_ALL=C
> +export LANG=C
> +export LANGUAGE=C
> +
> +# If autotools files have been created, update their timestamp to
> +# prevent them from being regenerated
> +for i in configure aclocal.m4 Makefile.am Makefile.in; do
> +    if [ -f "${i}" ]; then
> +        touch "${i}"
> +    fi
> +done
> +
> +# Build the package
> +dpkg-buildpackage -a$2

Can that be done with changing/extending build.sh and not introducing a
copy?

Henning