latest ghcup doesn't work on arch linux aarch64

Hi! i am running a arch linux container on my arm64 chromebook. ghcup worked fine till today afternoon, when i did a ghcup upgrade

now ghcup wont work at all because glibc 2_33 is not available.

i checked. the latest available glibc for archlinuxarm is version 2.32 which can be found here here

i don't think its necessarily a ghcup issue, but i don't know where else to file it? what do i do here?

changed the description

Thanks for notifying. We're building the aarch64 binaries on a fedora container: https://gitlab.haskell.org/haskell/ghcup-hs/-/blob/master/.gitlab-ci.yml#L53

So yeah, it's possible this leads to bleeding edge glibc.

The way forward is to use alpine linux container, but i think no one has bootstrapped GHC there yet.

If you manage to compile ghcup on your arch box, we could update the binary manually this time. See https://gitlab.haskell.org/haskell/ghcup-hs/-/blob/master/.gitlab/script/ghcup_release.sh#L29

I have very low capacity for coding atm, so I have to rely on contributions right now.

GHC 8.8.3 has been bootstrapped on alpine linux for aarch64: See https://gitlab.alpinelinux.org/alpine/aports/-/issues/11176#note_81470
Somehow, this effort never made it into the aports tree...

I used that as a basis to build a multi-arch GHC docker image (linux/amd64, linux/arm64/v8).
As the name of the repository suggests, it is used to build the pandoc binary release for aarch64.

i'd love to help. what'd i have to do here?

clone this repo and build?

Yeah, you'd have to install GHC and cabal manually first, see the CI scripts for an example: https://gitlab.haskell.org/haskell/ghcup-hs/-/blob/master/.gitlab/before_script/linux/install_deps_manual.sh#L43

Then you clone the repo and build via

cabal build -w ghc-${GHC_VERSION} -ftui

yea no, i already have ghc and cabal installed from before ghcup stopped working.

i'll just clone and run this command then and report back if it works.

it'll have to be in the morning tho if that's fine. it's getting super late here : p

thanks for the quick replies @maerwald .

added scopeplatforms statushelp-needed labels

Tried building on a debian 11 shell in my Arm(aarch64) chromebook with crouton(kind of chroot) to upload here and close this issue.

got errored:- ghc: could not execute: hspec-discover

when i poked it a bit, a more specific error was: cabal: Failed to build ghcup-0.1.15.2-inplace-ghcup-test.

full prompt output:- 
-----------------------


(debi)arjun@localhost:~/Documents/repos/ghcup-hs$ cabal build -w ghc-${GHC_VERSION} -ftui
Build profile: -w ghc-8.10.5 -O2
In order, the following will be built (use -v for more details):
 - ghcup-0.1.15.2 (test:ghcup-test) (first run)
Preprocessing test suite 'ghcup-test' for ghcup-0.1.15.2..
Building test suite 'ghcup-test' for ghcup-0.1.15.2..
ghc: could not execute: hspec-discover

build command: cabal build -w ghc-${GHC_VERSION} -ftui -v 

--------
$GHC_VERSION = 8.10.5

kernel (if that matters?) : 
Linux localhost 4.19.185-29738-gf8e4fd700b66 #1 SMP PREEMPT Sun Jun 27 22:53:35 PDT 2021 aarch64 GNU/Linux

cabal install hspec-discover

alright, i did that and it it finally build! what do i need to upload here?

also do i cabal install in my source?
also also, why don't we add hspec-discover in the .cabal file as dep instead of manually installing it ?

alright, i did that and it it finally build! what do i need to upload here?

cabal build -ftui and then the resulting binary

also also, why don't we add hspec-discover in the .cabal file as dep instead of manually installing it ?

Yeah. Just haven't found the time.

We'll also need to migrate CI away from fedora to eg Debian...

build the binary for aarch64 against commit d9d19643

build on system with:-

• glib version 2.31
• debian bullseye
• ghc 8.10.5

sha256 checksum output $ sha256sum ghcup

d67702f7c9e3586e85ed7c1bd09b7544da55bd1d3b4a961a07018348f78cf76b ghcup

link:- to be added.

Making a new comment instead of editing the one above since it has the checksum.

Did a dummy asset release to upload the binary as asked, lmk if this works.

you can find the release Here
(the binary is under the packages section )

mentioned in commit 59e1eee8

Updated... the last thing to do now is to fix CI

Debian Stretch without any backports repo?

That's what i get in my chromebook as a container out of the box. It's also pretty old.

@arjun can you create the same binary for armv7?

Sure. how do i proceed with it? i dont think i have a armv7 machine. Can i do this on my aarch64 machine with a flag or something ?

I can't run your binary on debian 10: https://gitlab.haskell.org/haskell/ghcup-hs/-/jobs/728334#L439

yea, it probably wont, since i have Debian 11(testing) on my machine and the glibc version would be ahead. Version 2.31 however, should cover much more devices than the previous 2.33, since 2.31 seems to be the version for ubuntu 20.04 LTS.

we should just use a CI build from an older debian version for dist tbh.

I don't think we should use debian 11. GHC builds run on debian 10 and I use our internal docker images for debian 10 that have GHC and llvm preinstalled. It's good to synchronize with GHC CI.

So we need:

1. Armv7 debian 10 ghcup binary
2. Aarch64 debian 10 ghcup binary

You can build those via a docker container. Armv7 docker image runs on aarch64 I believe.

https://gitlab.haskell.org/haskell/ghcup-hs/-/blob/issue-160-CI/.gitlab-ci.yml#L44 https://gitlab.haskell.org/haskell/ghcup-hs/-/blob/issue-160-CI/.gitlab-ci.yml#L53

brb. learning Docker : P

Alright, i've tried, but docker wont run on this machine (chromebook with crouton) as it need some grub tweaks to return to cgroups-v1, but there is no grub here so that can't be done.

some posts suggest compiling your own chromium-os kernel and then keep it sync with all future updates, after which docker also may or maynot work.

That's more work than i am willing to put in for this machine tbh :/

I've managed to make it build in a more manual way: !110 (diffs)

I'll simply create a new tag and have it build release binaries.

that sounds.. really convenient : p

you seem really good with CI-foo Julian.

closed with commit 9218efd7

All done

ah, the sweet sweet sound of pending issues closing.

WIN

*socially distanced high 5 *

You can test via ghcup upgrade --force

works