Wasmtime GitHub notifications bot (May 13 2020 at 00:09): Wasmtime GitHub notifications bot (May 13 2020 at 00:09):brooksmtownsend commented on Issue #339:
A project that I contribute to has a dependency on the rust crate
wasmtime = "0.15.0", and runningcargo buildon a Raspberry Pi 3B using Ubuntu 20.04 LTS armv7l results in the following error:Compiling wasmtime-runtime v0.15.0 error: unsupported platform --> /home/ubuntu/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-runtime-0.15.0/src/traphandlers.rs:169:21 | 169 | compile_error!("unsupported platform"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0308]: mismatched types --> /home/ubuntu/.cargo/registry/src/github.com-1ecc6299db9ec823/wasmtime-runtime-0.15.0/src/traphandlers.rs:156:52 | 156 | unsafe fn get_pc(cx: *mut libc::c_void) -> *const u8 { | ------ ^^^^^^^^^ expected *-ptr, found `()` | | | implicitly returns `()` as its body has no tail or `return` expression ... 169 | compile_error!("unsupported platform"); | - help: consider removing this semicolon | = note: expected raw pointer `*const u8` found unit type `()` error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0308`. error: could not compile `wasmtime-runtime`. To learn more, run the command again with --verbose.I understand that
wasmtimedoes not support arm, just thought I'd contribute and say that others are still watching :big_smile:
Wasmtime GitHub notifications bot (May 13 2020 at 01:58):jlb6740 commented on Issue #339:
Hi @brooksmtownsend have you seen this https://github.com/bytecodealliance/wasmtime/pull/1494? Perhaps just a dependency update?
Wasmtime GitHub notifications bot (May 13 2020 at 02:00):jlb6740 deleted a comment on Issue #339:
Hi @brooksmtownsend have you seen this https://github.com/bytecodealliance/wasmtime/pull/1494? Perhaps just a dependency update?
Wasmtime GitHub notifications bot (May 13 2020 at 02:01):jlb6740 commented on Issue #339:
Hi @brooksmtownsend have you seen this #1494? Does this platform support Arm64?
Wasmtime GitHub notifications bot (May 13 2020 at 06:18):cfallin commented on Issue #339:
The RPi3 does have a 64-bit CPU, but I think most distros (at least the default Raspbian, and it looks like Ubuntu install in the logs above too) run a 32-bit kernel and userland. Unfortunately we only support ARM64 (which would require a 64-bit userland) right now. @brooksmtownsend, I've used wasmtime successfully on a Gentoo 64-bit install on a RPi4, FWIW, but I know switching distro/install is quite a hassle.
ARM32 support may come at some point in the future, but I'm not sure what our architecture support roadmap looks like so I can't make any promises, sorry! If anyone is interested in working on this, I'd be happy to provide guidance as best as I can.
Wasmtime GitHub notifications bot (May 13 2020 at 09:32):brooksmtownsend commented on Issue #339:
@cfallin @jlb6740 great callout and this was all done on a fresh install of, unfortunately, the 32-bit server OS. I'll try out switching to the 64-bit version of Ubuntu (I'm not dedicated to Ubuntu, but figured I'll stick with changing one thing at a time) and see how that goes. Thanks!
Wasmtime GitHub notifications bot (May 13 2020 at 09:42):ebeasant-arm commented on Issue #339:
If you can get it installed, Ubuntu 64-bit is well worth the effort: With the recent upgrade of the Pi Imager, its not much harder than putting Rasbian on it from scratch :-) There's been a huge amount of work on Cranelift/wasmtime very recently to support aarch64, which is now maturing nicely, and being used in anger. Keep up the good work!
Wasmtime GitHub notifications bot (May 13 2020 at 09:43):brooksmtownsend commented on Issue #339:
Awesome! Looking forward to getting it, I actually didn't mean to install the 32-bit version in the first place
Wasmtime GitHub notifications bot (May 13 2020 at 09:56):tschneidereit commented on Issue #339:
@brooksmtownsend we'd love to hear how things are going, so it'd be great if you could report back here. Do note that #1494 just landed, so ARM64 support is quite new, which might mean running into early-adopter issues. Which mostly means that hearing how things are going would be even more appreciated :D
Wasmtime GitHub notifications bot (May 16 2020 at 15:12):brooksmtownsend commented on Issue #339:
@tschneidereit i tried building with the aarch64 version of Ubuntu 20.04, unfortunately I ran into the same issue. This is with wasmtime-runtime v0.15.0, is that too early of a version?
Wasmtime GitHub notifications bot (May 17 2020 at 19:35):tschneidereit commented on Issue #339:
@brooksmtownsend thank you for reporting this! I think v0.15.0 might indeed be too old: I think the new backend hadn't landed by then, and we certainly didn't do aarch64 builds in CI. We do do that by now, see the
devandv0.16.0releases.However, the cross-compilation process isn't documented (at least that I could find). I just filed #1720 to rectify that. Here's the patch that added aarch64 builds to CI, in case you're interested.
Wasmtime GitHub notifications bot (Feb 03 2021 at 18:20):bjorn3 commented on Issue #339:
The new backend framework has a working AArch64 backend.
Wasmtime GitHub notifications bot (Feb 03 2021 at 18:42):cfallin closed Issue #339:
The wasi story is really exciting in the idea of showing we can run the same code on multi platforms and architectures so I went to do that, and in compiling for arm I found that only tier 1 basically x86 platforms are supported currently.
/home/pi/wasmtime/wasmtime-jit/src/link.rs:(.text._ZN12wasmtime_jit4link8relocate17h8a250ae005184b62E+0x680): undefined reference to `__rust_probestack' collect2: error: ld returned 1 exit statusFound this in probestack so it seems like an upstream problem
//! Finally it's worth noting that at the time of this writing LLVM only has //! support for stack probes on x86 and x86_64. There's no support for stack //! probes on any other architecture like ARM or PowerPC64. LLVM I'm sure would //! be more than welcome to accept such a change!And found these
https://github.com/rust-lang/rust/issues/43241
https://github.com/rust-lang/rust/issues/49355
Last updated: Nov 22 2024 at 16:03 UTC