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Alex Crichton
4933762d81
|
2 years ago | |
|---|---|---|
| .. | ||
| ocaml | 2 years ago | |
| src | 2 years ago | |
| tests | 2 years ago | |
| Cargo.toml | 2 years ago | |
| README.md | 3 years ago | |
| build.rs | 2 years ago | |
README.md
wasm-spec-interpreter
This project shows how to use ocaml-interop to call into the Wasm spec
interpreter. There are several steps to making this work:
- building the OCaml Wasm spec interpreter as a static library
- building a Rust-to-OCaml FFI bridge using
ocaml-interopand a custom OCaml wrapper - linking both things into a Rust crate
Dependencies
This crate only builds in an environment with:
make(the Wasm spec interpreter uses aMakefile)ocamlopt,ocamlbuild(available with, e.g.,dnf install ocaml)- Linux tools (e.g.
ar); currently it is easiest to build the static libraries in a single environment but this could be fixed in the future (TODO) libgmp, for the OCamlzarithpackagegitis used bybuild.rsto retrieve the repository containing the Wasm spec interpreter; it is safe to completely removeocaml/specto get a new copy
Build
cargo build --features build-libinterpret
Use FFI_LIB_DIR=path/to/lib/... to specify a different location for the static
library (this is mainly for debugging). If the build-libinterpret feature is
not provided, this crate will build successfully but fail at runtime.
Test
cargo test --features build-libinterpret