No description
Mathieu Benoit
613fb66ee0
Arch creates them for one architecture:
[[ $CARCH = 'x86_64' ]] && {
symlinks["lib64"]="usr/lib"
symlinks["usr/lib64"]="lib"
}
Correct for Arch, and the root of the pkg-config failure fixed in the previous
commit -- which was fixed one build system at a time, and this is the one place
it belongs. s390x's toolchain reports ../lib64 for -print-multi-os-directory,
and libiberty installs into $(libdir)$(MULTIOSSUBDIR). With no symlink there,
one static library CREATES /usr/lib64 as a real directory, and meson's default
libdir test is `isdir and not islink`.
With the symlink, /usr/lib/../lib64 resolves to /usr/lib and the test sees a
link. Verified: the package now ships both, and pkgconf rebuilt with zero paths
under usr/lib64.
Not an invention -- it is Arch's own model, one library directory with lib64 as
compatibility. Ubuntu s390x has no /usr/lib64 at all, which is why nothing on
the host ever hinted at this.
--- FR ---
Arch ne les crée que pour une architecture :
[[ $CARCH = 'x86_64' ]] && {
symlinks["lib64"]="usr/lib"
symlinks["usr/lib64"]="lib"
}
Juste pour Arch, et racine de la panne pkg-config corrigée au commit précédent
— corrigée un système de construction à la fois, alors que voici le seul endroit
qui lui revient. La chaîne s390x annonce ../lib64 pour
-print-multi-os-directory, et libiberty s'installe dans $(libdir)$(MULTIOSSUBDIR).
Sans lien, une seule bibliothèque statique CRÉE /usr/lib64 en vrai répertoire,
et le test de meson est « isdir et non islink ».
Avec le lien, /usr/lib/../lib64 se résout vers /usr/lib et le test voit un lien.
Vérifié : le paquet livre les deux, et pkgconf rebâti n'a plus aucun chemin sous
usr/lib64.
Rien d'inventé : c'est le modèle d'Arch lui-même, un seul répertoire de
bibliothèques avec lib64 en compatibilité. Ubuntu s390x n'a pas de /usr/lib64
du tout, d'où l'absence de tout indice sur l'hôte.
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.