cranelift

rust jit wasm webassembly runtime wasi cranelift sandbox wasmtime

Alex Crichton 5a6ed0fbd2 Implement component model resources in Wasmtime (#6691 ) * Fix signatures registered with modules-in-components This commit fixes a minor issue in `FunctionIndices::link_and_append_code` which previously ended up only filling out the `wasm_to_native_trampolines` field for the first module rather than all the modules. Additionally the first module might have too many entries that encompass all modules instead of just its own entries. The fix in this commit is to refactor this logic to ensure that the necessary maps are present for all translations. While technically a bug that can be surfaced through the embedder API it's pretty obscure. The given test here panics beforehand but succeeds afterwards, but this is moreso prep for some future resource-related work where this map will need persisting into the component metadata side of things. * Initial support for resources Lots of bits and pieces squashed into this commit. Much to be done still. * Start supporting destructors * Get some basic drop tests working Also add a test which requires host-defined drop to be called which isn't working. * Fix rebase issue * Fix a failing test * I am zorthax, destroyer of resources * Remove a branch in compiled code No need to check for a null funcref when we already know ahead of time if it's ever going to be null or not. * Fix the test suite * Add embedder API to destroy resources * Add TODO for factc * Fix a warning and leave a comment * Integrate resources into `Type` Plumb around dynamic information about resource types. * Implement `Val::Own` * Implement reentrance check for destructors Implemented both in the raw wasm intrinsic as well as the host. * Use cast instead of transmute * Fill out some cranelift-shared comments * Update codegen for resource.drop shim The MAY_ENTER flag must always be checked, regardless of whether there's an actual destructor or not. * Update wasm-tools crates to latest `main` * Update resource.drop binary format * Add some docs * Implement dynamic tracking for borrow resources Not actually hooked up anywhere but this should at least be a first stab at an implementation of the spec. * Remove git overrides * Remove no-longer-needed arms in wit-bindgen * Prepare for mutability in `LiftContext` * Change `&LiftContext` to `&mut LiftContext` * Remove `store: &'a StoreOpaque` from `LiftContext`, instead storing just `memory: &'a [u8]` * Refactor methods to avoid needing the entire `StoreOpaque` This'll enable `LiftContext` to store `&'a mut ResourceTable` in an upcoming commit to refer to the host's resources. * Lowering a borrow is infallible * Use `ResourceAny` for both own/borrow Rename `Val::Own` to `Val::Resource` accordingly. * Initial implementation of borrowed resources Lots of juggling of contexts here and there to try and get everything working but this is hopefully a faithful implementation. Tests not implemented yet and will come next and additionally likely update implementation details as issues are weeded out. * Add a suite of tests for borrowing resources Code coverage was used to ensure that almost all of the various paths through the code are taken to ensure all the basic bases are covered. There's probably still lurking bugs, but this should be a solid enough base to start from hopefully. * Fill in an issue for bindgen todo * Add docs, still more to go * Fill out more documentation * Fill out a test TODO * Update the host `Resource<T>` type * Add docs everywhere * Don't require a `Store` for creating the resource or getting the representation. The latter point is the main refactoring in this commit. This is done in preparation for `bindgen!` to use this type where host bindings generally do not have access to the store. * Document `ResourceAny` * Debug assert dtor is non-null * Review comments on loading libcalls * Update some comments * Update a comment * Fix some typos * Add a test that host types are the same when guest types differ * Fix some typos * Thread things through a bit less * Undo CompileKey-related changes * Gate an async function on the async feature * Fix doc links * Skip resources tests in miri They all involve compilation which takes too long and doesn't currently work		1 year ago
..
src	Implement component model resources in Wasmtime (#6691)	1 year ago
Cargo.toml	Dependency gardening for Wasmtime (#6731)	1 year ago
LICENSE	Initial reorg.	5 years ago
build.rs	Support multiple versions of `wasmtime` in the same crate (#6673)	1 year ago