No description
Mathieu Benoit
1a0e19a368
Forty-odd packages in link-time order, from linux-api-headers to pacman itself. The order follows what a compiler actually needs, not pacman metadata: --nodeps means nothing is ever checked, so anything required at link time has to exist already. A failure does not stop the run. One missing package must not hide the state of the forty that follow, so failures are collected and reported at the end, each with its own log. A state file makes the run resumable, which matters when a single gcc build is measured in tens of minutes. The header states why stage 1 is not the port: everything here links against the host glibc, because Arch glibc needs an Arch gcc which needs an Arch glibc. Stages 2 and 3 break that circle. bootstrap-pacman.sh now guards its own main so it can be sourced for build_package without re-running the whole bootstrap. --- FR --- Une quarantaine de paquets dans l ordre des dependances de lien, de linux-api-headers a pacman lui-meme. L ordre suit ce dont un compilateur a reellement besoin, pas les metadonnees de pacman : --nodeps ne verifie jamais rien, donc tout ce qui sert au lien doit deja exister. Un echec n arrete pas la course. Un paquet manquant ne doit pas masquer l etat des quarante suivants : les echecs sont collectes et rapportes a la fin, chacun avec son journal. Un fichier d etat rend la reprise possible, ce qui compte quand un seul gcc se compte en dizaines de minutes. L en-tete dit pourquoi l etage 1 n est pas le portage : tout s y lie a la glibc de l hote, parce que la glibc d Arch reclame un gcc d Arch qui reclame une glibc d Arch. Les etages 2 et 3 brisent ce cercle. bootstrap-pacman.sh garde desormais son main pour etre sourcable et fournir build_package sans relancer tout l amorcage. 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 | ||
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.