No description
Mathieu Benoit
3c926f10a9
An audit of every missing dependency spelled as a soname, asking the ARTEFACT whether the package that declares it actually links it. It contradicted my guesses: curl's krb5, ssh2 and idn2 are all real. Two were not. make readelf -d usr/bin/make -> libc.so.6, and nothing else gcc configure recorded ISLLIBS='' ISLINC=''; zero libisl in the tree Both are false in our build environment and true in Arch's. --nodeps means makepkg never checks, so each shipped a package asking for something this port will never contain -- and only pacman ever notices, at install time. Building isl was the first plan. Its Arch packaging repo was last touched in 2017 and its only source URL is isl.gforge.inria.fr, dead with INRIA's GForge. There is nothing to build; the declaration goes instead, and Graphite goes with it. gnutls found the same shape from the other direction: --with-leancrypto stopped configure, and 'leancrypto' sat in depends= where nothing checks it. --- FR --- Un audit de chaque dépendance manquante écrite en soname, demandant à l'ARTEFACT si le paquet qui la déclare la lie vraiment. Il a contredit mes suppositions : les krb5, ssh2 et idn2 de curl sont bien réels. Deux ne l'étaient pas. make readelf -d usr/bin/make -> libc.so.6, et rien d'autre gcc configure a noté ISLLIBS='' ISLINC='' ; aucun libisl dans l'arbre Les deux sont fausses dans notre environnement et vraies dans celui d'Arch. --nodeps veut dire que makepkg ne vérifie jamais : chacun livrait donc un paquet réclamant ce que ce portage ne contiendra jamais — et seul pacman s'en aperçoit, à l'installation. Bâtir isl était le premier plan. Son dépôt de packaging Arch n'a pas bougé depuis 2017 et sa seule source pointe isl.gforge.inria.fr, morte avec le GForge d'INRIA. Il n'y a rien à bâtir : c'est la déclaration qui part, et Graphite avec elle. gnutls a montré la même forme par l'autre bout : --with-leancrypto arrêtait configure, et 'leancrypto' figurait dans depends= où rien ne le vérifie. Assisted-by: Claude Opus 5 |
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| boot | ||
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| scripts | ||
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| CODEOWNERS | ||
| Containerfile | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| TODO.md | ||
Arch Linux s390x
A port of Arch Linux to IBM s390x mainframe architecture with systemd support.
Boots a full Arch Linux system on IBM mainframes (or QEMU s390x emulation) using a hybrid build: cross-compilation for the kernel, native s390x compilation on z/VM for userspace.
Quick Start
make container # build dev container (first time)
cp .env.example .env # configure z/VM access
make all # build kernel + initramfs + systemd
make test-systemd # boot it
What Works
- Arch Linux kernel 6.18.6-arch1 with Arch patches, cross-compiled
- Initramfs via modified mkinitcpio
- Static busybox built natively on z/VM, 2.3MB
- Root filesystem with ext4, switch_root to real rootfs
- Systemd as PID 1
Pacman, bash, and GNU coreutils are not yet ported.
Build System
The build uses two tiers:
Cross-compilation (x86_64 host): Kernel is built in a Fedora 43 container with s390x-linux-gnu-gcc. Initramfs is generated with a patched mkinitcpio that handles cross-architecture binary injection.
Native compilation (s390x z/VM): Busybox and systemd must be built on real s390x hardware. The z/VM system runs RHEL 9.6 with GCC 11.5.0. Scripts handle SSH deployment and retrieval automatically via .env configuration.