Add support for the `volatile_set_memory` intrinsic
Add support for the unstable `volatile_set_memory` intrinsic
(Runtime behaviour and soundness requirements for `volatile_set_memory` are identical to those of `write_bytes`, so supporting this intrinsic is trivial.)
Use `Lrc` instead of `Rc` in `MiriCompilerCalls::config()`
The `used_crate_source` query defines its return type as [`Lrc<CrateSource>`](1195bea5a7/compiler/rustc_middle/src/query/mod.rs (L1418)), which would be `Arc` when `parallel-compiler = true`.
I assume this fixesrust-lang/rust#87623. I didn't test that locally -- I'm not interested in `parallel-compiler = true` enough to be willing to recompile rustc with that configuration to test it, but I'm submitting this in case it might be useful for `parallel-compiler = true` users.
also ignore 'thread leaks' with -Zmiri-ignore-leaks
This is a step towards https://github.com/rust-lang/miri/issues/1371. The remaining hard part would be supporting checking for memory leaks when there are threads still running. For now we elegantly avoid this problem by using the same flag to control both of these checks. :)
Fix use of deprecated `check_no_isolation` in posix fs shims
Update posix fs shims to use new API `reject_in_isolation`, which
allows rejection with error code instead of always forcing abort.
Error code chosen for each op is the most appropriate one from the
list in corresponding syscall's manual.
Updated helper APIs to not use quotes (\`) around input name while
preparing the message. This allows callers to pass multi-word string
like -- "\`read\` from stdin".
Cc https://github.com/rust-lang/miri/issues/1034
Change the code to either `EACCES` (if the op is performed on the
path), or `EBADF` (if the op is performed the fd)
Updated ops: `stat`, `opendir`, `ftruncate64`, and `readlink`
Add a new test for fs ops in isolation.
Update posix fs shims to use new API `reject_in_isolation`, which
allows rejection with error code instead of always forcing abort.
Error code chosen for each op is the most appropriate one from the
list in corresponding syscall's manual.
Updated helper APIs to not use quotes (`) around input name while
preparing the message. This allows callers to pass multi-word string
like -- "`read` from stdin".
rustup
This test was removed in rustc in https://github.com/rust-lang/rust/pull/87141.
We added it in https://github.com/rust-lang/miri/pull/1430, and possibly that "interesting case in unsizing" is not covered by tests now -- but I don't remember what that case is.^^ If/when `impl Trait` in bindings comes back, we should copy the new rustc tests to Miri as well.
