ARM compatibility

[Kabouik]

Unfortunately the install script does not support ARM and manually building with stack on ARM fails too:

$ stack install -j2                                                                                            
/home/user/Projects/simplex-chat/simplex-chat.cabal was generated with a newer version of hpack,
please upgrade and try again.
Not cryptographic hash found for Hackage package cryptostore-0.2.1.0, updating
Selected mirror https://s3.amazonaws.com/hackage.fpcomplete.com/
Downloading root
Waiting to acquire cache lock on /home/user/.stack/pantry/hackage/hackage-security-lock
Acquired cache lock on /home/user/.stack/pantry/hackage/hackage-security-lock
Released cache lock on /home/user/.stack/pantry/hackage/hackage-security-lock
Selected mirror https://s3.amazonaws.com/hackage.fpcomplete.com/
Downloading timestamp
Downloading snapshot
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Cannot update index (no local copy)
Downloading index
Waiting to acquire cache lock on /home/user/.stack/pantry/hackage/hackage-security-lock
Acquired cache lock on /home/user/.stack/pantry/hackage/hackage-security-lock
Released cache lock on /home/user/.stack/pantry/hackage/hackage-security-lock
Updated package index downloaded
Calculating hashes to check for hackage-security rebases or filesystem changes
No old cache found, populating cache from scratch
Populating cache from file size 785956352, hash 3cc150b78048459609062d508546617f41e248c8eb41f5b72f53be5198286aab
Populating package index cache ...
Package index cache populated
Unable to find installation URLs for OS key: linux-aarch64-tinfo6

With how widespread ARM CPUs now have become, I think it would be a huge milestone if simplex-chat could run on this architecture.

[epoberezkin]

The source code is compatible with ARM - we run it on M1 macs, iOS and Android - the problem is that GitHub doesn’t have ARM runners, so we’d have to compile on some external CI to provide them… I was hoping GitHub will start offering aarch64 Darwin/Linux runners, so we don’t have to do it elsewhere.

[Kabouik]

Thanks, I see. Then I should be able to compile it locally on my device. Any idea about the error I got when trying?

…

On 2022-03-09 07:33 Evgeny Poberezkin ***@***.***> wrote: The source code is compatible with ARM - we run it on M1 macs, iOS and Android - the problem is that GitHub doesn’t have ARM runners, so we’d have to compile on some external CI to provide them… I was hoping GitHub will start offering aarch64 Darwin/Linux runners, so we don’t have to do it elsewhere. -- Reply to this email directly or view it on GitHub: #415 (comment) 062598472 You are receiving this because you authored the thread. Message ID: ***@***.***>

[Kabouik]

This is an issue that's not specific to simplex-chat, I already had it when compiling kmonad. But in that case, I could solve it by using cabal build && cabal build instead of stack install, which doesn't work here:

$ cabal configure                                                                                            
Cloning into '/home/user/Projects/simplex-chat/dist-newstyle/src/aeson-1a04c29b98dd5e3b'...
remote: Enumerating objects: 11825, done.
remote: Counting objects: 100% (885/885), done.
remote: Compressing objects: 100% (528/528), done.
remote: Total 11825 (delta 449), reused 597 (delta 260), pack-reused 10940
Receiving objects: 100% (11825/11825), 40.26 MiB | 1.70 MiB/s, done.
Resolving deltas: 100% (6347/6347), done.
Updating files: 100% (1092/1092), done.
HEAD is now at 3eb66f9 change if to guards, comments
Cloning into '/home/user/Projects/simplex-chat/dist-newstyle/src/haskell-t_-6b4dc34f0e9894cf'...
remote: Enumerating objects: 1905, done.
remote: Counting objects: 100% (12/12), done.
remote: Compressing objects: 100% (8/8), done.
remote: Total 1905 (delta 1), reused 9 (delta 1), pack-reused 1893
Receiving objects: 100% (1905/1905), 317.83 KiB | 807.00 KiB/s, done.
Resolving deltas: 100% (771/771), done.
HEAD is now at f708b00 use capi ffi for ioctl
Cloning into '/home/user/Projects/simplex-chat/dist-newstyle/src/simplexmq-45fc5d9938e25531'...
remote: Enumerating objects: 5729, done.
remote: Counting objects: 100% (2913/2913), done.
remote: Compressing objects: 100% (1142/1142), done.
remote: Total 5729 (delta 1957), reused 2105 (delta 1484), pack-reused 2816
Receiving objects: 100% (5729/5729), 1.81 MiB | 2.29 MiB/s, done.
Resolving deltas: 100% (3044/3044), done.
HEAD is now at 7a19ab2 make sending confirmation asynchronous (#327)
Cloning into '/home/user/Projects/simplex-chat/dist-newstyle/src/android-s_-e314a55aefa0a719'...
remote: Enumerating objects: 9, done.
remote: Counting objects: 100% (9/9), done.
remote: Compressing objects: 100% (7/7), done.
remote: Total 9 (delta 0), reused 9 (delta 0), pack-reused 0
Receiving objects: 100% (9/9), done.
HEAD is now at 3c3a5ab init
Warning: The package list for 'hackage.haskell.org' is 196 days old.
Run 'cabal update' to get the latest list of available packages.
Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: aeson-2.0.3.0 (user goal)
[__1] next goal: witherable (dependency of aeson)
[__1] rejecting: witherable-0.4.1, witherable-0.4, witherable-0.3.5,
witherable-0.3.4, witherable-0.3.3, witherable-0.3.2, witherable-0.3.1,
witherable-0.3, witherable-0.2, witherable-0.1.3.4, witherable-0.1.3.3,
witherable-0.1.3.2, witherable-0.1.3, witherable-0.1.2.3, witherable-0.1.2.2,
witherable-0.1.2.1, witherable-0.1.2, witherable-0.1.1.1, witherable-0.1.1,
witherable-0.1, witherable-0.0, witherable-0.1.3.1 (conflict: aeson =>
witherable>=0.4.2 && <0.5)
[__1] fail (backjumping, conflict set: aeson, witherable)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: aeson, witherable

$ cabal build                                                                                                
HEAD is now at 3eb66f9 change if to guards, comments
HEAD is now at f708b00 use capi ffi for ioctl
HEAD is now at 7a19ab2 make sending confirmation asynchronous (#327)
HEAD is now at 3c3a5ab init
Warning: The package list for 'hackage.haskell.org' is 196 days old.
Run 'cabal update' to get the latest list of available packages.
Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: aeson-2.0.3.0 (user goal)
[__1] next goal: witherable (dependency of aeson)
[__1] rejecting: witherable-0.4.1, witherable-0.4, witherable-0.3.5,
witherable-0.3.4, witherable-0.3.3, witherable-0.3.2, witherable-0.3.1,
witherable-0.3, witherable-0.2, witherable-0.1.3.4, witherable-0.1.3.3,
witherable-0.1.3.2, witherable-0.1.3, witherable-0.1.2.3, witherable-0.1.2.2,
witherable-0.1.2.1, witherable-0.1.2, witherable-0.1.1.1, witherable-0.1.1,
witherable-0.1, witherable-0.0, witherable-0.1.3.1 (conflict: aeson =>
witherable>=0.4.2 && <0.5)
[__1] fail (backjumping, conflict set: aeson, witherable)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: aeson, witherable

[epoberezkin]

what ghc version? you need 8.10.7

[Kabouik]

That's 8.8.4-3, installed from Debian Sid's repository and it's the latest version I can get. I tried also stack install system-ghc, but it returns the same issue:

Unable to find installation URLs for OS key: linux-aarch64-tinfo6

I think there simply is no later version for aarch64.

I also tried uninstalling haskell-stack from the Debian repository and installing it using curl -sSL https://get.haskellstack.org | sh instead, but again it returned:

Detected Linux distribution: debian

Sorry, currently only 64-bit (x86_64) Linux binary is available.

(Which surprises me since there's a version in Debian repository.)

I am sorry, we may be drifting to off-topic here, but that shows that manually compiling simplex-chat on an ARM device is not straightforward unfortunately.

[epoberezkin]

Which device you are compiling it on? CPU isn’t the only problem, there is also the question of the available C libs.

[Kabouik]

It's a phone running Debian Sid in a LXC container (the host is SailfishOS): https://www.youtube.com/watch?v=8PnDZtKzsSc

[Josh-SMU]

This is still an issue on Debian Sid using the manual build instructions.

cabal install

cabal: Could not resolve dependencies:
[__0] next goal: aeson (user goal)
[__0] rejecting: aeson-2.1.1.0, aeson-2.1.0.0 (constraint from user target
requires ==2.0.3.0)
[__0] trying: aeson-2.0.3.0
[__1] trying: base-4.16.4.0/installed-4.16.4.0 (dependency of aeson)
[__2] next goal: android-support (user goal)
[__2] rejecting: android-support-0.1.0.0 (conflict:
base==4.16.4.0/installed-4.16.4.0, android-support => base^>=4.14.3.0)
[__2] fail (backjumping, conflict set: android-support, base)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: base, android-support, aeson

[epoberezkin]

You seem to be using a newer version of GHC than our code base expects - you need 8.10.7

[Josh-SMU]

How can I force the version? I just curled and ran the script per the instructions.

[Josh-SMU]

For anybody else who has this issue, this fixed it for me:

ghcup install ghc 8.10.7
rm ~/.ghcup/bin/ghc
ln -s ~/.ghcup/ghc/8.10.7/bin/ghc-8.10.7 ~/.ghcup/bin/ghc
cabal install

Also llvm-13 (and maybe llvm-13-dev) are required packages as well and should probably be included in the manual build instructions.

[Josh-SMU]

Ah however even after installing llvm-13 and llvm-13-dev I get a build failure with tons of errors about not being able to determine llvm version...

Configuring library for Only-0.1..
Preprocessing library for Only-0.1..
Building library for Only-0.1..
[1 of 1] Compiling Data.Tuple.Only ( src/Data/Tuple/Only.hs, dist/build/Data/Tuple/Only.o, dist/build/Data/Tuple/Only.dyn_o )

: error:
Warning: Couldn't figure out LLVM version!
Make sure you have installed LLVM between [9 and 13)
ghc: could not execute: opt

[Josh-SMU]

Ok, the issue here is that apparently in Haskell notation, llvm [9-13) means >=9 and <13, as in 9-12 is required. In Debian Bookworm (and sid), llvm 13 is the minimum, and llvm-12 doesnt seem to exist? llvm-11 is present in Debian Bullseye but cant be installed in Bookworm due to other dependencies not being available (version mismatches).

So SimpleX can't be compiled on Debian Bookworm.

Can the dependency on llvm be upped to 13?