No description
Mathieu Benoit
f6199bdb16
Stage 2 could build and could not deliver. Four obstacles, all in the tail of package(), after a compile that had already succeeded. Our meson ships arch-meson and it passes --auto-features enabled, so each of the nine documentation tools this chroot lacks was a hard error, not a skipped feature. A wrapper appends --auto-features auto; meson honours the last one. Building those tools was the alternative and it is not close -- doxygen alone wants clang, fmt, spdlog, llvm-libs. Then bsdtar would not start: stage-1 libxml2 asks for the host's libicuuc.so.76, our icu ships 78, and bsdtar is what writes the package. The package that would fix it was the one being built. libarchive only links libxml2 for xar, which nothing here reads, so stage 1 drops it. Verified: libxml2 rebuilt against libicuuc.so.78, provides libxml2.so=16-64, zero multiarch paths. --- FR --- L'étage 2 savait bâtir et ne savait pas livrer. Quatre obstacles, tous dans la queue de package(), après une compilation déjà réussie. Notre meson livre arch-meson, qui passe --auto-features enabled : chacun des neuf outils de documentation absents de ce chroot devenait une erreur franche au lieu d'une option écartée. Une enveloppe ajoute --auto-features auto, meson retenant la dernière occurrence. Bâtir ces outils était l'autre voie et l'écart est net -- doxygen seul réclame clang, fmt, spdlog, llvm-libs. Puis bsdtar ne démarrait plus : le libxml2 de l'étage 1 réclame le libicuuc.so.76 de l'hôte, notre icu livre le 78, et bsdtar est ce qui écrit le paquet. Le paquet qui corrigeait cela était celui qu'on bâtissait. libarchive ne lie libxml2 que pour xar, que rien ici ne lit : l'étage 1 l'abandonne. Vérifié : libxml2 rebâti sur libicuuc.so.78, fournit libxml2.so=16-64, aucun chemin multiarch. Assisted-by: Claude Opus 5 |
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| .github/workflows | ||
| arch-kernel | ||
| boot | ||
| patches | ||
| scripts | ||
| .env.example | ||
| .gitignore | ||
| 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.