fb0b9e3ae6
* Remove Cranelift's OutOfBounds trap, which is no longer used. * Change proc_exit to unwind instead of exit the host process. This implements the semantics in https://github.com/WebAssembly/WASI/pull/235. Fixes #783. Fixes #993. * Fix exit-status tests on Windows. * Revert the wiggle changes and re-introduce the wasi-common implementations. * Move `wasi_proc_exit` into the wasmtime-wasi crate. * Revert the spec_testsuite change. * Remove the old proc_exit implementations. * Make `TrapReason` an implementation detail. * Allow exit status 2 on Windows too. * Fix a documentation link. * Really fix a documentation link.
31 lines
1.0 KiB
Rust
31 lines
1.0 KiB
Rust
use wasmtime::Trap;
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pub mod old;
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pub use wasi_common::{WasiCtx, WasiCtxBuilder};
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// Defines a `struct Wasi` with member fields and appropriate APIs for dealing
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// with all the various WASI exports.
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wig::define_wasi_struct_for_wiggle!("phases/snapshot/witx/wasi_snapshot_preview1.witx");
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pub fn is_wasi_module(name: &str) -> bool {
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// FIXME: this should be more conservative, but while WASI is in flux and
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// we're figuring out how to support multiple revisions, this should do the
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// trick.
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name.starts_with("wasi")
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}
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/// Implement the WASI `proc_exit` function. This function is implemented here
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/// instead of in wasi-common so that we can use the runtime to perform an
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/// unwind rather than exiting the host process.
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fn wasi_proc_exit(status: i32) -> Result<(), Trap> {
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// Check that the status is within WASI's range.
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if status >= 0 && status < 126 {
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Err(Trap::i32_exit(status))
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} else {
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Err(Trap::new(
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"exit with invalid exit status outside of [0..126)",
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))
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}
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}
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