linking problem on alpine with matrix-sdk-crypto-nodejs

[eburghar]

On alpine 3.16 I had to rebuild matrix-sdk-crypto-nodejs (v0.1.0-beta.1) and overwrite the matrix-sdk-crypto.linux-x64-musl.node which is downloaded by download-lib.js when trying to run matrix-hookshot, because of that dynamic linking error :

Error: Error relocating /usr/share/matrix-hookshot/node_modules/@matrix-org/matrix-sdk-crypto-nodejs/matrix-sdk-crypto.linux-x64-musl.node: __register_atfork: symbol not found

Specifically this is object dependencies of the the original lib

ldd matrix-sdk-crypto.linux-x64-musl.node 
        /lib/ld-musl-x86_64.so.1 (0x7f941bb4c000)
        /lib/libmimalloc.so.2.0 => /lib/libmimalloc.so.2.0 (0x7f941b3c7000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x7f941b3ae000)
        libc.so.6 => /lib/ld-musl-x86_64.so.1 (0x7f941bb4c000)
        ld-linux-x86-64.so.2 => /lib/ld-linux-x86-64.so.2 (0x7f941b3a8000)

And this is for the rebuilt one

ldd matrix-sdk-crypto.linux-x64-musl.node 
        /lib/ld-musl-x86_64.so.1 (0x7f40c6de5000)
        /lib/libmimalloc.so.2.0 => /lib/libmimalloc.so.2.0 (0x7f40c5353000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x7f40c533a000)
        libc.musl-x86_64.so.1 => /lib/ld-musl-x86_64.so.1 (0x7f40c6de5000)

Is this a cross-compile issue ?

[Hywan]

Hello,

Sorry for the late reply. Did you compile matrix-sdk-crypto-nodejs by hand, or has it been downloaded?

[eburghar]

I download it, compile and replace the dir matrix-sdk-crypto-nodejs in node_modules (so the .so got overwritten)

It is a kind of ugly hack as it needs to be manually synchronized with the version appearing in package.json at each new revision, but this works and it is stable on alpine.

[to-kn]

as i am running into the same problem, how can it be fixed? We don't event need it, at the moment, but since it is a dependency of matrix-bot-sdk, i would like to get it working somehow :)

[Gnuxie]

Hi, you might not want to use ubuntu here https://github.com/matrix-org/matrix-rust-sdk-crypto-nodejs/blob/main/.github/workflows/release.yml#L54-L56

Just revisited this because i would like to be able to use alpine for Draupnir to shrink the image size a little the-draupnir-project/Draupnir#595

[Gnuxie]

Might be worth following from https://github.com/napi-rs/cross-build/blob/main/.github/workflows/pure-rust-build-on-linux.yml & https://github.com/napi-rs/cross-build/blob/main/.github/workflows/pure-rust-build-on-linux.yml#L134-L138 & https://github.com/napi-rs/cross-build/blob/main/.github/workflows/pure-rust-build-on-linux.yml#L13-L71