49 lines
2.4 KiB
Markdown
49 lines
2.4 KiB
Markdown
# Wasmtime: a WebAssembly Runtime.
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Wasmtime is a standalone wasm-only runtime for [WebAssembly], using the [Cranelift] JIT.
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It runs WebAssembly code [outside of the Web], and can be used both as a command-line
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utility or as a library embedded in a larger application.
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[WebAssembly]: https://webassembly.org/
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[Cranelift]: https://github.com/CraneStation/cranelift
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[outside of the Web]: https://webassembly.org/docs/non-web/
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[](https://travis-ci.org/CraneStation/wasmtime)
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[](https://ci.appveyor.com/project/CraneStation/cranelift)
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[](https://gitter.im/CraneStation/Lobby)
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*Wasmtime is complete enough to pass the WebAssembly spec testsuite.* Support for
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system APIs is coming soon!
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One goal for this project is to implement [CloudABI](https://cloudabi.org/) using
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WebAssembly as the code format, provide [CloudABI system calls] as WebAssembly
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host imports, and then port the [Rust CloudABI package] and [CloudABI libc] to it
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to support Rust, C, C++, and other toolchains.
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CloudABI is a natural complement for WebAssembly, since WebAssembly provides
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sandboxing for code but doesn't have any builtin I/O, and CloudABI provides
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sandboxed I/O.
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[CloudABI]: https://cloudabi.org/
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[CloudABI system calls]: https://github.com/NuxiNL/cloudabi#specification-of-the-abi
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[Rust CloudABI package]: https://crates.io/crates/cloudabi
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[CloudABI libc]: https://github.com/NuxiNL/cloudlibc
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Additional goals for Wasmtime include:
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- Support a variety of host APIs (not just CloudABI), with fast calling sequences,
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and develop proposals for system calls in the WebAssembly
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[Reference Sysroot](https://github.com/WebAssembly/reference-sysroot).
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- Implement the [proposed WebAssembly C API].
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- Facilitate testing, experimentation, and development around the [Cranelift] and
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[Lightbeam] JITs.
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- Develop a the native ABI used for compiling WebAssembly suitable for use in both
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JIT and AOT to native object files.
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[proposed WebAssembly C API]: https://github.com/rossberg/wasm-c-api
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[Cranelift]: https://github.com/CraneStation/cranelift
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[Lightbeam]: https://github.com/CraneStation/lightbeam
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It's Wasmtime.
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