Request: Rust extras

[dten]

Via rustup you can normally install extra things like rls or targets such as wasm32-unknown-unknown
What's the chances of having some of those available :)?

[its-pointless]

i have no idea ...
But can you get rls via cargo?

[dten]

Sadly I don't think so. It's one of those bits that's tied heavily to a version of the compiler, so they distribute them together.

[its-pointless]

you are right, trying to find a command that will make it build ...

[its-pointless]

okay added extended = true to config.toml
lets see what happens...

[dten]

Exciting 😊

[its-pointless]

Couldn't get it to work unfortunately.

[dten]

Thanks for trying

[its-pointless]

I can actually build rls. I just can't get it scripted right...

[dten]

how did you build it... i tried to use the docker images that build everything myself but got stuck on binaryen (to_string is missing in ndk), made some changes to fix that and got stuck on openssl (didn't like -mandroid)

[its-pointless]

i will update or actually post a rust enabled branch. Could you test rls and wasm32 are working properly?

[dten]

yea of course

[dten]

i have neovim with an lsp plugin alive. The client seems to chat to the server for a little while but nothing obviously works. I set this in the server log but not sure what to do about that.

~/repos/proj $ cat $TMP/LanguageServer.log 

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { repr: Os { code: 32, message: "Broken pipe" } }', /home/builder/.termux-build/rustc/src/src/libcore/result.rs:906:4
stack backtrace:
   0: rust_metadata_std_97dcb3fe0e0c8e5f7a62808cf0c7ae89
   1: rust_metadata_std_97dcb3fe0e0c8e5f7a62808cf0c7ae89
   2: rust_metadata_std_97dcb3fe0e0c8e5f7a62808cf0c7ae89
   3: rust_metadata_std_97dcb3fe0e0c8e5f7a62808cf0c7ae89
   4: std::panicking::rust_panic_with_hook
   5: rust_metadata_std_97dcb3fe0e0c8e5f7a62808cf0c7ae89
   6: std::panicking::begin_panic_fmt
   7: rust_begin_unwind
   8: core::panicking::panic_fmt
   9: <unknown>
  10: <unknown>
  11: <unknown>
  12: <unknown>
  13: <unknown>
  14: __rust_maybe_catch_panic
  15: std::rt::lang_start
  16: <unknown>
  17: __libc_init
  18: <unknown>

[its-pointless]

Which arch are you using?

[dten]

aarch64

[dten]

Any news? Also are you looking at the wasm32 bit :)?

[its-pointless]

yeah i got llvm compilied with wasm32
don't if it works or not

[dten]

Any luck :)? Wish I knew how to help...

[its-pointless]

there are 2 ways to get wasm the emscription method and this rust-lang/rust#45905
the later should probably work for all versions of rust i have available. Maybe... i haven't tested it.
rls and rustfmt are available.

[dten]

Well it let me try! Looks like it's not got everything installed it needs.

~/repos $ USER=david cargo new wasm32-test
     Created library `wasm32-test` project
~/repos $ cd wasm32-test/
  …3 ↑ ~/repos/wasm32-test $ cargo build --target wasm32-unknown-unknown
   Compiling wasm32-test v0.1.0 (file:///data/data/com.termux/files/home/repos/wasm32-test)
error[E0463]: can't find crate for `std`
  |
  = note: the `wasm32-unknown-unknown` target may not be installed

error: aborting due to previous error

error: Could not compile `wasm32-test`.

To learn more, run the command again with --verbose.

Pretty certain there extra std targets should go in this directory according to https://github.com/japaric/rust-cross/blob/master/README.md#installing-the-cross-compiled-standard-crates

…3 ↑ ~/repos/wasm32-test $ tree -d "$(rustc --print sysroot)/lib/rustlib"
/data/data/com.termux/files/usr/lib/rustlib
├── aarch64-linux-android
│   ├── analysis
│   └── lib
└── etc

[its-pointless]

This turned up on my todo list today. Std is built error now is
error: Could not create LLVM TargetMachine for triple: wasm32-unknown-unknown-wasm: No available targets are compatible with this triple.
I don't have enough time to deal with this much as its a moving target that takes a while to compile...

[dten]

That doesn't look like a triple, agree it's a moving target though ☹️ thanks for trying

[its-pointless]

Wasm working in updated nightlys

[dten]

Got something building! Thanks!