d1aa86f91a
* Add AArch64 tests to CI This commit enhances our CI with an AArch64 builder. Currently we have no physical hardware to run on so for now we run all tests in an emulator. The AArch64 build is cross-compiled from x86_64 from Linux. Tests all happen in release mode with a recent version of QEMU (recent version because it's so much faster, and in release mode because debug mode tests take quite a long time in an emulator). The goal here was not to get all tests passing on CI, but rather to get AArch64 running on CI and get it green at the same time. To achieve that goal many tests are now ignored on aarch64 platforms. Many tests fail due to unimplemented functionality in the aarch64 backend (#1521), and all wasmtime tests involving compilation are also disabled due to panicking attempting to generate generate instruction offset information for trap symbolication (#1523). Despite this, though, all Cranelift tests and other wasmtime tests should be runnin on AArch64 through QEMU with this PR. Additionally we'll have an AArch64 binary release of Wasmtime for Linux, although it won't be too useful just yet since it will panic on almost all wasm modules. * Review comments
wasmtime
A standalone runtime for WebAssembly
A Bytecode Alliance project
Guide | Contributing | Website | Chat
Installation
The Wasmtime CLI can be installed on Linux and macOS with a small install script:
$ curl https://wasmtime.dev/install.sh -sSf | bash
Windows or otherwise interested users can download installers and binaries directly from the GitHub Releases page.
Example
If you've got the Rust compiler installed then you can take some Rust source code:
fn main() {
println!("Hello, world!");
}
and compile/run it with:
$ rustup target add wasm32-wasi
$ rustc hello.rs --target wasm32-wasi
$ wasmtime hello.wasm
Hello, world!
Features
-
Lightweight. Wasmtime is a standalone runtime for WebAssembly that scales with your needs. It fits on tiny chips as well as makes use of huge servers. Wasmtime can be embedded into almost any application too.
-
Fast. Wasmtime is built on the optimizing Cranelift code generator to quickly generate high-quality machine code at runtime.
-
Configurable. Whether you need to precompile your wasm ahead of time, generate code blazingly fast with Lightbeam, or interpret it at runtime, Wasmtime has you covered for all your wasm-executing needs.
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WASI. Wasmtime supports a rich set of APIs for interacting with the host environment through the WASI standard.
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Standards Compliant. Wasmtime passes the official WebAssembly test suite, implements the official C API of wasm, and implements future proposals to WebAssembly as well. Wasmtime developers are intimately engaged with the WebAssembly standards process all along the way too.
Language Support
You can use Wasmtime from a variety of different languages through embeddings of the implementation:
- Rust - the
wasmtimecrate - C - the
wasm.h,wasi.h, andwasmtime.hheaders - Python - the
wasmtimePyPI package - .NET - the
WasmtimeNuGet package - Go - the wasmtime-go repository
Documentation
📚 Read the Wasmtime guide here! 📚
The wasmtime guide is the best starting point to learn about what Wasmtime can do for you or help answer your questions about Wasmtime. If you're curious in contributing to Wasmtime, it can also help you do that!.
It's Wasmtime.