No description
Mathieu Benoit
e5c6835234
lib/crypt-gost-yescrypt.c:134:16: error: initialization discards 'const'
qualifier from pointer target type
A warning, promoted by libxcrypt's own -Werror. Our gcc is 16.2.1 and libxcrypt
4.5.2 was released against considerably older ones; the same code warns the same
way on x86_64 with the same compiler, so this says nothing about s390x.
--disable-werror is libxcrypt's own switch. Patching the source would mean
carrying a diff against upstream C for a const-correctness nit in an
implementation of a Russian hash standard nothing here uses. Declining to treat
warnings as errors is what a distribution does when its compiler is ahead of a
release.
Both configure calls: libxcrypt is built twice, once for the obsolete-API compat
library. Fixing only the first leaves the second failing identically, which reads
as if the flag had done nothing.
--- FR ---
lib/crypt-gost-yescrypt.c:134:16: error: initialization discards 'const'
qualifier from pointer target type
Un avertissement, promu par le -Werror de libxcrypt lui-même. Notre gcc est en
16.2.1 et libxcrypt 4.5.2 est sorti face à bien plus anciens ; le même code
avertit de la même façon sur x86_64 avec le même compilateur — cela ne dit rien
de s390x.
--disable-werror est l'interrupteur de libxcrypt. Corriger la source
supposerait de porter un correctif contre du C amont pour une vétille de
const-correction dans une implémentation d'une norme de hachage russe dont rien
ici ne se sert. Refuser de traiter les avertissements en erreurs est ce que fait
une distribution quand son compilateur devance une version.
Les deux appels à configure : libxcrypt est bâti deux fois, dont une pour la
bibliothèque de compatibilité. Ne corriger que le premier laisse le second
échouer à l'identique, ce qui se lit comme un drapeau sans effet.
Assisted-by: Claude Opus 5
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| 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.