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...replacing `.cast().wrapping_offset().cast()` & similar code.
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net listen backlog update, follow-up from #97963.
FreeBSD and using system limit instead for others.
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These were previously in the panic_unwind crate with dummy stubs in the
panic_abort crate. However it turns out that this is insufficient: we
still need a proper personality function even with -C panic=abort to
handle the following cases:
1) `extern "C-unwind"` still needs to catch foreign exceptions with -C
panic=abort to turn them into aborts. This requires landing pads and a
personality function.
2) ARM EHABI uses the personality function when creating backtraces.
The dummy personality function in panic_abort was causing backtrace
generation to get stuck in a loop since the personality function is
responsible for advancing the unwind state to the next frame.
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Align android `sigaddset` impl with the reference impl from Bionic
In https://github.com/rust-lang/rust/pull/100737 I noticed we were treating the sigset_t as an array of bytes, while referencing code from android (https://github.com/aosp-mirror/platform_bionic/blob/ad8dcd6023294b646e5a8288c0ed431b0845da49/libc/include/android/legacy_signal_inlines.h) which treats it as an array of unsigned long.
That said, the behavior difference is so subtle here that it's not hard to see why nobody noticed. This fixes the implementation to be equivalent to the one in bionic.
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This mirrors the implementations on Unix platforms, and also mirrors the
existing `AsRawFd` impls.
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This was missed in https://github.com/rust-lang/rust/pull/100642
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FreeBSD and using system limit instead for others.
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Use pointer `is_aligned*` methods
This PR replaces some manual alignment checks with calls to `pointer::{is_aligned, is_aligned_to}` and removes a useless pointer cast.
r? `@scottmcm`
_split off from #100746_
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Guarantee `try_reserve` preserves the contents on error
Update doc comments to make the guarantee explicit. However, some
implementations does not have the statement though.
* `HashMap`, `HashSet`: require guarantees on hashbrown side.
* `PathBuf`: simply redirecting to `OsString`.
Fixes #99606.
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r=Mark-Simulacrum
Rework Ipv6Addr::is_global to check for global reachability rather than global scope - rebase
Rebasing of pull request #86634 off of master to try and get the feature "ip" stabilized.
I also found a test failure in the rebase that is_global was considering the benchmark space to be globally reachable.
This is related to my other rebasing pull request #99947
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Std module docs improvements
My primary goal is to create a cleaner separation between primitive types and primitive type helper modules (fixes #92777). I also changed a few header lines in other top-level std modules (seen at https://doc.rust-lang.org/std/) for consistency.
Some conventions used/established:
* "The \`Box\<T>` type for heap allocation." - if a module mainly provides a single type, name it and summarize its purpose in the module header
* "Utilities for the _ primitive type." - this wording is used for the header of helper modules
* Documentation for primitive types themselves are removed from helper modules
* provided-by-core functionality of primitive types is documented in the primitive type instead of the helper module (such as the "Iteration" section in the slice docs)
I wonder if some content in `std::ptr` should be in `pointer` but I did not address this.
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High traffic macros should detail this helpful addition.
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r=thomcc
Make doc for stdin field of process consistent
The other fields use this format and example.
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Replace most uses of `pointer::offset` with `add` and `sub`
As PR title says, it replaces `pointer::offset` in compiler and standard library with `pointer::add` and `pointer::sub`. This generally makes code cleaner, easier to grasp and removes (or, well, hides) integer casts.
This is generally trivially correct, `.offset(-constant)` is just `.sub(constant)`, `.offset(usized as isize)` is just `.add(usized)`, etc. However in some cases we need to be careful with signs of things.
r? ````@scottmcm````
_split off from #100746_
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The other fields use this format and example.
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Rollup of 9 pull requests
Successful merges:
- #97963 (net listen backlog set to negative on Linux.)
- #99935 (Reenable disabled early syntax gates as future-incompatibility lints)
- #100129 (add miri-test-libstd support to libstd)
- #100500 (Ban references to `Self` in trait object substs for projection predicates too.)
- #100636 (Revert "Revert "Allow dynamic linking for iOS/tvOS targets."")
- #100718 ([rustdoc] Fix item info display)
- #100769 (Suggest adding a reference to a trait assoc item)
- #100777 (elaborate how revisions work with FileCheck stuff in src/test/codegen)
- #100796 (Refactor: remove unnecessary string searchings)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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add miri-test-libstd support to libstd
- The first commit mirrors what we already have in liballoc.
- The second commit adds some regression tests that only really make sense to be run in Miri, since they rely on Miri's extra checks to detect anything.
- The third commit makes the MPSC tests work in reasonable time in Miri by reducing iteration counts.
- The fourth commit silences some warnings due to code being disabled with `cfg(miri)`
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net listen backlog set to negative on Linux.
it will be 4076 (from 5.4) or 128.
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Windows: Load synch functions together
Attempt to load all the required sync functions and fail if any one of them fails.
This fixes a FIXME by going back to optional loading of `WakeByAddressSingle`.
Also reintroduces a macro for optional loading of functions but keeps it separate from the fallback macro rather than having that do two different jobs.
r? `@thomcc`
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r=Mark-Simulacrum
Update fortanix-sgx-abi and export some useful SGX usercall traits
Update `fortanix-sgx-abi` to 0.5.0 to add support for cancel queue (see https://github.com/fortanix/rust-sgx/pull/405 and https://github.com/fortanix/rust-sgx/pull/404).
Export some useful traits for processing SGX usercall. This is needed for https://github.com/fortanix/rust-sgx/pull/404 to avoid duplication.
cc `@raoulstrackx` and `@jethrogb`
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Expose `Utf8Lossy` as `Utf8Chunks`
This PR changes the feature for `Utf8Lossy` from `str_internals` to `utf8_lossy` and improves the API. This is done to eventually expose the API as stable.
Proposal: rust-lang/libs-team#54
Tracking Issue: #99543
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Avoid zeroing a 1kb stack buffer on every call to `std::sys::windows::fill_utf16_buf`
I've also tried to be slightly more careful about integer overflows, although in practice this is likely still not handled ideally.
r? `@ChrisDenton`
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Mitigate stale data reads on SGX platform
Intel disclosed the Stale Data Read vulnerability yesterday. In order to mitigate this issue completely, reading userspace from an SGX enclave must be aligned and in 8-bytes chunks. This PR implements this mitigation
References:
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00657.html
- https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/stale-data-read-from-xapic.html
cc: ``@jethrogb``
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`std::sys::windows::fill_utf16_buf`
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Signed-off-by: Nick Cameron <nrc@ncameron.org>
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Attempt to load all the required sync functions and fail if any one of them fails.
This reintroduces a macro for optional loading of functions but keeps it separate from the fallback macro rather than having that do two different jobs.
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In order to mitigate the Stale Data Read for xAPIC vulnerability completely, reading userspace from an SGX enclave must be aligned and in 8-bytes chunks.
References:
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00657.html
- https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/stale-data-read-from-xapic.html
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Update fortanix-sgx-abi to 0.5.0 to add support for cancel queue (see
https://github.com/fortanix/rust-sgx/pull/405 and
https://github.com/fortanix/rust-sgx/pull/404).
Export some useful traits for processing SGX usercall. This is needed
for https://github.com/fortanix/rust-sgx/pull/404 to avoid duplication.
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