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https://github.com/fluencelabs/wasm-bindgen
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8cb792474c
Support has landed in rust-lang/rust for full support for LLVM 9's interpretation of WebAssembly threads. This commit updates our thread transformation pass to take all this into account, namely: * The threadign pass now runs by default and is keyed on whether memory is shared, not off an env var. * TLS is initialized in addition to memory on each thread. * Stack pointer finding is tweaked to account for the TLS base also being a mutable global. * The build of the parallel raytrace example was updated to use today's nightly.
25 lines
928 B
Bash
Executable File
25 lines
928 B
Bash
Executable File
#!/bin/sh
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set -ex
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# Two critical steps are required here to get this working:
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#
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# * First, the Rust standard library needs to be compiled. The default version
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# is not compatible with atomics so we need to compile a version, with xargo,
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# that is compatible.
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#
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# * Next we need to compile everything with the `atomics` feature enabled,
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# ensuring that LLVM will generate atomic instructions and such.
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RUSTFLAGS='-C target-feature=+atomics,+bulk-memory' \
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xargo build --target wasm32-unknown-unknown --release
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# Note the usage of `--no-modules` here which is used to create an output which
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# is usable from Web Workers. We notably can't use `--target bundler` since
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# Webpack doesn't have support for atomics yet.
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cargo run --manifest-path ../../crates/cli/Cargo.toml \
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--bin wasm-bindgen -- \
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../../target/wasm32-unknown-unknown/release/raytrace_parallel.wasm --out-dir . \
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--no-modules
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python3 -m http.server
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