cross-sysroot 
cross-sysroot is a utility to generate sysroot for cross-compilation.
The tool expects the name of the targeted Linux distribution, its version, the targeted architecture and a file containing the list of the main required packages.
The tool will solve package dependencies and extract them into a given sysroot path.
The generated sysroot can be used as an argument for the toolchain command line argument --sysroot=
-
To install the utility:
pip3 install cross-sysroot -
Command usage:
usage: cross-sysroot [-h] [--verbose] --distribution {debian,ubuntu,raspbian}
--distribution-version DISTRIBUTION_VERSION
[--distribution-url DISTRIBUTION_URL] --architecture
{amd64,arm64,armhf,armel} --build-root BUILD_ROOT
package_list_file
Build package list for Linux Distribution.
positional arguments:
package_list_file File containing the list of packages (and their
versions)
optional arguments:
-h, --help show this help message and exit
--verbose Verbose mode
--distribution {debian,ubuntu, raspbian}
Linux distribution
--distribution-version DISTRIBUTION_VERSION
Linux distribution
--distribution-url DISTRIBUTION_URL
Linux distribution URL
--architecture {amd64,arm64,armhf,armel}
CPU Architecture
--build-root BUILD_ROOT
Location to store the Linux Distribution package.
--cross-gcc CROSS_GCC
GCC Path used to build the cross application. When
set, all GCC sysroot files are copied into the
sysroot.
- Example 1:
cross-sysroot --distribution debian --distribution-version stable --architecture arm64 --build-root /tmp/cross-sysroot tests/requirements-debian-jessie-arm64.txt
- Example 2: Considering
CROSS_COMPILEenvironment variable points to your cross-compilation toolchain:
cross-sysroot --distribution debian --distribution-version stable --architecture arm64 --build-root /tmp/cross-sysroot --cross-gcc ${CROSS_COMPILE}gcc tests/requirements-debian-jessie-arm64.txt
Notes about Development/CI
-
Launch the python application from source tree:
PYTHONPATH=$PWD python3 -m cross_sysroot.cross_sysroot --help -
Generate a new PIP package
-
Run Python linter on the code:
sudo apt-get install pylint3 pylint3 cross_sysroot
-
Run test in the source tree:
PYTHONPATH=$PWD pytest
Development Information
Format of the Debian-based distribution repository
Location of Packages.gz:
- http://gb.archive.ubuntu.com/ubuntu/dists/trusty/main/binary-amd64/Packages.gz
- http://ftp.uk.debian.org/debian/dists/jessie/main/binary-amd64/Packages.gz
Content of Packages.gz:
(...)
Package: automake1.9
Priority: optional
Section: devel
Installed-Size: 1137
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Eric Dorland <eric@debian.org>
Architecture: all
Version: 1.9.6+nogfdl-4ubuntu1
Provides: automaken
Depends: autoconf (>= 2.58), autotools-dev (>= 20020320.1)
Suggests: automake1.9-doc
Conflicts: automake (<< 1:1.4-p5-1), automake1.5 (<< 1.5-2), automake1.6 (<< 1.6.1-4)
Filename: pool/main/a/automake1.9/automake1.9_1.9.6+nogfdl-4ubuntu1_all.deb
Size: 338192
MD5sum: 5bc0b73852c50927a98ac4150cf2c585
SHA1: 8dbab4e448dd095f7ab9dc6defe308823cd1b16a
SHA256: 75358908ffe09e115d3971273c967306dd931b94edd846dbd6a762448e40cb56
Description: A tool for generating GNU Standards-compliant Makefiles
Description-md5: 16f7c6a70ae85327f4522569aa2e0cc9
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Supported: 9m
Package: automoc
Priority: extra
Section: devel
Installed-Size: 122
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>
Architecture: amd64
Version: 1.0~version-0.9.88-5build1
Depends: libc6 (>= 2.2.5), libgcc1 (>= 1:4.1.1), libqtcore4 (>= 4:4.8.0), libstdc++6 (>= 4.1.1), libqt4-dev
Filename: pool/main/a/automoc/automoc_1.0~version-0.9.88-5build1_amd64.deb
Size: 32888
(...)
