This allows these test modules to pass on builds/targets without
unwinding support, where `panic = "abort"` - the ignored tests are for
functionality that's not supported on those targets.
Currently, when enabling CFI via -Zsanitizer=cfi and executing e.g.
std::sys::random::getrandom, we can observe a CFI violation. This is
the case for all consumers of the std::sys::pal::weak::weak macro,
as it is defining weak functions which don't show up in LLVM IR
metadata. CFI fails for all these functions.
Similar to other such cases in
https://github.com/rust-lang/rust/issues/115199, this change stops
emitting the CFI typecheck for consumers of the macro via the
\#[no_sanitize(cfi)] attribute.
Eliminate any redundant, unobservable logic from the their default
method implementations.
The observable changes are that `Write::write_fmt` for both types now
ignores the formatting arguments, so a user fmt impl which has side
effects is not invoked, and `Write::write_all_vectored` for both types
does not advance the borrowed buffers. Neither behavior is guaranteed by
the docs and the latter is documented as unspecified.
`Empty` is not marked as vectored, so that `Chain<Empty, _>` and
`Chain<_, Empty>` are not forced to be vectored.
Support `File::seek` for Hermit
`lseek` was added in `hermit-abi` in commit [87dd201](87dd201a14) (add missing interface for lseek, 2024-07-15), which was just released in version 0.5.0.
cc ``@mkroening,`` ``@stlankes``
Fixes https://github.com/hermit-os/hermit-rs/issues/652
- Just the permission and file type.
- FileTimes will need some new conversion functions and thus will come
with a future PR. Trying to keep things simple here.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
- Similar to FilePermissions, using bool to represent the bitfield.
- FileType cannot be changed, so no need to worry about converting back
to attribute.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
- UEFI file permissions are indicated using a u64 bitfield used for
readonly/filetype, etc.
- Using normal bool with to and from attribute conversions to
FilePermission from overriding some other bitfields.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
As per #117276, this moves the platform definitions of `Stdout` and friends into `sys`. This PR also unifies the UNIX and Hermit implementations and moves the `__rust_print_err` function needed by libunwind on SGX into the dedicated module for such helper functions.
Windows: Don't link std (and run-make) against advapi32, except on win7
Std no longer depends on any functionality provided by advapi32, so we can remove it from the list of external libraries we link against. Except, the win7 targets do still rely on advapi32-provided functionality. This PR therefore moves linking against it to only occur on win7 targets, so that no new uses of it slip in without being noticed.
