en Copyright 2015 Java http://172.16.0.5:8080/history/wasmtime-44.0.1/crates/wasmtime/src/runtime/vm/gc/enabled/externref.rs#7bdb25e2 Remove the now-unused `VMGcRef::as_externref_unchecked` method (#9436) List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/vm/gc/enabled/externref.rs Thu, 10 Oct 2024 15:17:32 +0000 Nick Fitzgerald <fitzgen@gmail.com> http://172.16.0.5:8080/history/wasmtime-44.0.1/crates/wasmtime/src/runtime/vm/gc/enabled/externref.rs#12c20b22 Implement the Wasm GC instructions for converting between `anyref` and `externref` (#9435)* Implement the Wasm GC instructions for converting between `anyref` and `externref`This commit implements two instructions:1. `any.convert_extern`2. `extern.convert_any`These instructions are used to convert between `anyref` and `externref`values. The `any.convert_extern` instruction takes an `anyref` value andconverts it to an `externref` value. The `extern.convert_any` instruction takesan `externref` value and converts it to an `anyref` value.Rather than implementing wrapper objects -- for example an `structAnyOfExtern(ExternRef)` type that is a subtype of `AnyRef` -- we instead reusethe same representation converted references as their unconverted reference. Forexample, `(any.convert_extern my_externref)` is identical to the original`my_externref` value. This means that we don't actually emit any clifinstructions to implement these Wasm instructions; they are no-ops!Wasm code remains none-the-wiser because it cannot directly test for thedifference between, for example, a `my_anyref` and the result of`(extern.convert_any my_anyref)` because they are in two different typehierarchies, so any direct `ref.test` would be invalid. The Wasm code would haveto convert one into the other's type hierarchy, at which point it doesn't knowwhether wrapping/unwrapping took place.We did need some changes at the host API and host API implementation levels,however:* We needed to relax the requirement that a `wasmtime::AnyRef` only wraps a `VMGcRef` that points to an object that is a subtype of `anyref` and similar for `wasmtime::ExternRef`.* We needed to make the `wasmtime::ExternRef::data[_mut]` methods return an option of their associated host data, since any `externref` resulting from `(extern.convert_any ...)` does not have any associated host data. (This change would have been required either way, even if we used wrapper objects.)* fix tests* fix wasmtime-environ tests List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/vm/gc/enabled/externref.rs Thu, 10 Oct 2024 14:41:22 +0000 Nick Fitzgerald <fitzgen@gmail.com> http://172.16.0.5:8080/history/wasmtime-44.0.1/crates/wasmtime/src/runtime/vm/gc/enabled/externref.rs#81a89169 Add support for `#![no_std]` to the `wasmtime` crate (#8533)* Always fall back to custom platform for WasmtimeThis commit updates Wasmtime's platform support to no longer require anopt-in `RUSTFLAGS` `--cfg` flag to be specified. With `no_std` becomingofficially supported this should provide a better onboarding experiencewhere the fallback custom platform is used. This will cause linkererrors if the symbols aren't implemented and searching/googling shouldlead back to our docs/repo (eventually, hopefully).* Change Wasmtime's TLS state to a single pointerThis commit updates the management of TLS to rely on just a singlepointer rather than a pair of a pointer and a `bool`. Additionallymanagement of the TLS state is pushed into platform-specific modules toenable different means of managing it, namely the "custom" platform nowhas a C function required to implement TLS state for Wasmtime.* Delay conversion to `Instant` in atomic intrinsicsThe `Duration` type is available in `no_std` but the `Instant` type isnot. The intention is to only support the `threads` proposal if `std` isactive but to assist with this split push the `Duration` further intoWasmtime to avoid using a type that can't be mentioned in `no_std`.* Gate more parts of Wasmtime on the `profiling` featureMove `serde_json` to an optional dependency and gate the guest profilerentirely on the `profiling` feature.* Refactor conversion to `anyhow::Error` in `wasmtime-environ`Have a dedicated trait for consuming `self` in addition to a`Result`-friendly trait.* Gate `gimli` in Wasmtime on `addr2line`Cut down the dependency list if `addr2line` isn't enabled since thenthe dependency is not used. While here additionally lift the versionrequirement for `addr2line` up to the workspace level.* Update `bindgen!` to have `no_std`-compatible outputPull most types from Wasmtime's `__internal` module as the source oftruth.* Use an `Option` for `gc_store` instead of `OnceCell`No need for synchronization here when mutability is already available inthe necessary contexts.* Enable embedder-defined host feature detection* Add `#![no_std]` support to the `wasmtime` crateThis commit enables compiling the `runtime`, `gc`, and `component-model`features of the `wasmtime` crate on targets that do not have `std`. Thistags the crate as `#![no_std]` and then updates everything internally toimport from `core` or `alloc` and adapt for the various idioms. Thisended up requiring some relatively extensive changes, but nothing tootoo bad in the grand scheme of things.* Require `std` for the perfmap profiling agentprtest:full* Fix build on wasm* Fix windows build* Remove unused import* Fix Windows/Unix build without `std` feature* Fix some doc links* Remove unused import* Fix build of wasi-common in isolation* Fix no_std build on macos* Re-fix build* Fix standalone build of wasmtime-cli-flags* Resolve a merge conflict* Review comments* Remove unused import List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/vm/gc/enabled/externref.rs Sat, 04 May 2024 22:02:26 +0000 Alex Crichton <alex@alexcrichton.com> http://172.16.0.5:8080/history/wasmtime-44.0.1/crates/wasmtime/src/runtime/vm/gc/enabled/externref.rs#72004aad Turn the `wasmtime-runtime` crate into the `wasmtime::runtime::vm` module (#8501)* Expose `wasmtime-runtime` as `crate::runtime::vm` internally for the `wasmtime` crate* Rewrite uses of `wasmtime_runtime` to `crate::runtime::vm`* Remove dep on `wasmtime-runtime` from `wasmtime-cli`* Move the `wasmtime-runtime` crate into the `wasmtime::runtime::vm` module* Update labeler for merged crates* Fix `publish verify`prtest:full List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/vm/gc/enabled/externref.rs Tue, 30 Apr 2024 18:52:45 +0000 Nick Fitzgerald <fitzgen@gmail.com>