921: Apply TBAA metadata in the LLVM backend. r=nlewycky a=nlewycky
# Description
Inform LLVM that the pointers to memory, globals, locals, etc., are distinct.
# Review
- [x] Add a short description of the the change to the CHANGELOG.md file
Co-authored-by: Nick Lewycky <nick@wasmer.io>
Co-authored-by: nlewycky <nick@wasmer.io>
911: Don't emit bounds checks when the offset is known at compile time to be less than the minimum memory size. r=nlewycky a=nlewycky
Co-authored-by: Nick Lewycky <nick@wasmer.io>
917: feat(runtime-core) Host function without a `vm::Ctx` argument r=Hywan a=Hywan
Extracted from https://github.com/wasmerio/wasmer/pull/882.
~Includes https://github.com/wasmerio/wasmer/pull/916. Must not be merged until #916 lands in `master`.~
~If you want to compare only the different commits, see https://github.com/Hywan/wasmer/compare/feat-runtime-core-tests...Hywan:feat-runtime-core-host-function-without-vmctx?expand=1.~
This patch updates the `ExternalFunction` implementation to support host functions (aka imported functions) without having an explicit `vm::Ctx` argument.
It is thus possible to write:
```rust
fn add_one(x: i32) -> i32 {
x + 1
}
let import_object = imports! {
"env" => {
"add_one" => func!(add_one);
},
};
```
The previous form is still working though:
```rust
fn add_one(_: &mut vm::Ctx, x: i32) -> i32 {
x + 1
}
```
The backends aren't modified. It means that the pointer to `vm::Ctx` is still inserted in the stack, but it is not used when the function doesn't need it.
We thought this is an acceptable trade-off.
About the C API. It has not check to ensure the type signature. Since the pointer to `vm::Ctx` is always inserted, the C API can digest host functions with or without a `vm::Ctx` argument. The C API uses [the `Export` + `FuncPointer` API](cf5b3cc09e/lib/runtime-c-api/src/import/mod.rs (L630-L653)) instead of going through the `Func` API (which is modified by this API), which is only possible since the C API only receives an opaque function pointer. Conclusion is: We can't ensure anything on the C side, but it will work with or without the `vm::Ctx` argument in theory.
Co-authored-by: Ivan Enderlin <ivan.enderlin@hoa-project.net>
915: fix(runtime-core) Share the definition of `Trampoline` across all the backends r=Hywan a=Hywan
Extracted from https://github.com/wasmerio/wasmer/pull/882.
This patch updates all the backends to use the definition of
`Trampoline` as defined in the `wasmer_runtime_core::typed_func`
module. That way, there is no copy of that type, and as such, it is
easier to avoid regression (a simple `cargo check` does the job).
This patch also formats the `use` statements in the updated files.
Co-authored-by: Ivan Enderlin <ivan.enderlin@hoa-project.net>
This patch allows host functions to get a signature without an
explicit `vm::Ctx` argument.
It is for Rust only. The C API receives a function pointer and has no
clue whether a `vm::Ctx` argument is present or not, so it assumes it
is always declared.
From the backend point of view, the pointer to `vm::Ctx` is always
inserted in the stack, but it is not used by the function when the
argument is absent.
916: feat(runtime-core-tests) Introduce the new `wasmer-runtime-core-tests` crate r=Hywan a=Hywan
Extracted from https://github.com/wasmerio/wasmer/pull/882.
This non-publishable new crate contains a test suite for the
`wasmer-runtime-core` crate. So far, the test suite is rather small,
but it aims to be extended in a close future.
Co-authored-by: Ivan Enderlin <ivan.enderlin@hoa-project.net>
