c18065a8f0
Almost all languages targeting WebAssembly create imports from
"env" module by default, which means that Emscripten was being
detected even when it wasn't used.
Use "_emscripten_memcpy_big" as a signal, since it's imported
in all WASM modules produced by Emscripten, even as simple as:
EMSCRIPTEN_KEEPALIVE
int
main(int argc, const char** argv) {
return 0;
}
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
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|---|---|---|
| .circleci | ||
| cranelift@cb62a1ead2 | ||
| examples | ||
| spectests | ||
| src | ||
| .gitignore | ||
| .gitmodules | ||
| ARCHITECTURE.md | ||
| binary-name.sh | ||
| Cargo.lock | ||
| Cargo.toml | ||
| install.sh | ||
| LICENSE | ||
| logo.png | ||
| Makefile | ||
| README.md | ||
| rustfmt.toml | ||
Introduction
Wasmer is a Standalone JIT-style WebAssembly runtime code built on Cranelift code generator engine.
If you would like to see how Wasmer works under the hood, please visit our ARCHITECTURE document.
Usage
wasmer can execute both the standard binary format (.wasm) and the text
format defined by the WebAssembly reference interpreter (.wat).
Once installed, you will be able to run:
wasmer run my_wasm_file.wasm
Building & Running
To build this project you will need Rust and Cargo.
# checkout code and associated submodules
git clone --recursive https://github.com/wasmerio/wasmer.git
cd wasmer
# install tools
# make sure that `python` is accessible.
cargo install
Testing
Thanks to spectests we can assure 100% compatibility with the WebAssembly spec test suite.
Tests can be run with:
make test
If you need to re-generate the Rust tests from the spectests you can run:
make spectests
Roadmap
Wasmer is an open project guided by strong principles, aiming to be modular, flexible and fast. It is open to the community to help set its direction.
Below are some of the goals (written with order) of this project:
- It should be 100% compatible with the WebAssembly Spectest
- It should be fast (partially achieved)
- Support Emscripten calls (on the works)
- Support Rust ABI calls
License
MIT/Apache-2.0