| 20 Nov 2025 |
 Puna | 50/50 | 22:09:59 |
 magic_rb | $ ./result/bin/ghci
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Segmentation fault (core dumped)
:( | 22:10:14 |
| Puna | i'd believe it | 22:10:20 |
| magic_rb | though tbf im also running this through fucking qemu which isnt helping probably | 22:10:36 |
| magic_rb | can hetzner VMs execute armv6? probably not | 22:10:53 |
| Puna | if you do wanna go the debian GHC way, you can yoink code from this
https://github.com/NixOS/nixpkgs/pull/439258 | 22:10:59 |
 Alex | In reply to @opna2608:matrix.org
cross-compiled haskell.compiler.ghc94 just segfaulted the moment i tried to do anything with it on ppc64. maybe it does better on armv6 though.
otherwise, trixie has a prebuilt ghc 9.6.6 for armel that you could yoink for bootstrapping, I think that should work for armv6?
https://packages.debian.org/trixie/ghc Try overriding it to force an unregisterised build (there is an option in the arguments for this). | 22:14:26 |
| 21 Nov 2025 |
| Puna | that works, neat!
puna@Yubel ~> /nix/store/vyxi39wvrq4kzr0d18q4vplrczhh7ijk-ghc-powerpc64-unknown-linux-gnuabielfv1-9.4.8/bin/ghci
GHCi, version 9.4.8: https://www.haskell.org/ghc/ :? for help
ghci> :load /dev/shm/peano.hs
[1 of 2] Compiling Main ( /dev/shm/peano.hs, interpreted )
Ok, one module loaded.
ghci> toPeano 21
Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ (Succ Zero))))))))))))))))))))
| 00:04:00 |
| magic_rb | Howd you overwrite it? Show code | 00:04:25 |
| Puna | ↪ nix-build --no-out-link --max-jobs 1 --cores 30 -E '
with import ./. { };
pkgsCross.ppc64-elfv1.haskell.compiler.ghc94.override {
enableUnregisterised = true;
}'
| 00:04:46 |
| magic_rb | Ill have to do the same most likely | 00:04:51 |
| magic_rb | Didnt they plan to remove unregistered builds? | 00:05:00 |
| magic_rb | Though, theyve been planning to remove unregistered ever since i know what GHC is, sooo probably not happening soon | 00:05:39 |
| Alex | In reply to @magic_rb:matrix.redalder.org
Didnt they plan to remove unregistered builds? That's no good if GHC can't generate valid code with NCG/LLVM for your platform.
Anyway, it might not be needed for newer GHCs (IIRC with RISC-V changing Nixpkgs version without changing GHC fixed the registerised segfault). | 00:08:53 |
| 20 May 2021 |
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