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Darwin's `read`/`write` syscalls emit `EINVAL` only when `nbyte > INT_MAX`.
The case `nbyte == INT_MAX` is valid, so the subtraction can be removed.
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loongarch: Use unified data types for SIMD intrinsics
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Hint that choose_pivot returns index in bounds
Instead of using `unsafe` in multiple places, one `hint::assert_unchecked` allows use of safe code instead.
Part of #rust-lang/rust#144326
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Update core::mem::copy documentation
Update the documentation of `core::mem::copy` to include a `const` on the definition of the function.
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clippy fix: rely on autoderef
Changes instances of `&**self` to `self`.
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A recent change altered the definition of the link! macro when the windows_raw_dylib feature is enabled, changing its syntax from pub macro {..} to pub macro($tt:tt) {..} in #143592
This change introduced a build failure with the error: "macros that expand to items must be delimited with braces or followed by a semicolon".
We add a semicolon to the line causing the issue as we also modify the non windows_raw_dylib link to make use of the link_dylib macro
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Emit `x86_no_sse` in the compiler-builtins (and builtins-test) build
script, and use it to simplify `all(target_arch = "x86",
not(target_fefature = "sse))` configuration.
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The fix has since made it to nightly, so the skips here can be removed.
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The LLVM issue was resolved a while ago, these should no longer be a
problem.
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add Rev::into_inner
Tracking issue: rust-lang/rust#144277
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coretests/num: use ldexp instead of hard-coding a power of 2
r? `````@tgross35`````
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std: net: uefi: Add support to query connection data
- Use EFI_TCP4_GET_MODE_DATA to be able to query for ttl, nodelay, peer_addr and socket_addr.
- peer_addr is needed for implementation of `accept`.
- cc `````@nicholasbishop`````
- Also a heads up. The UEFI spec seems to be wrong or something for [EFI_TCP4_CONFIG_DATA](https://uefi.org/specs/UEFI/2.11/28_Network_Protocols_TCP_IP_and_Configuration.html#efi-tcp4-protocol-getmodedata). `ControlOption` should be a pointer as seen in [edk2](https://github.com/tianocore/edk2/blob/a1b509c1a453815acbc6c8b0fc5882fd03a6f2c0/MdePkg/Include/Protocol/Tcp4.h#L97).
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* Fix riscv testing. Previously the mod tests; would be looking for
src/detect/os/tests.rs.
* Replace a test with an unnamed const item. It is testing that no
warnings are emitted. It doesn't contain any checks that need to run
at runtime. Replacing the test allows removing the tidy:skip directive
for test locations.
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Like any other non-temporal instructions this has additional safety requirements
due to the mismatch with the Rust memory model. It is vital to know when using
this instruction.
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Most of these were skipped because of a bug with the platform
implementation, or some kind of crash unwinding. Since the upgrade to
Ubuntu 25.04, these all seem to be resolved with the exception of a bug
in the host `__floatundisf` [1].
[1] https://github.com/rust-lang/compiler-builtins/pull/384#issuecomment-740413334
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Update the last remaining image.
For this to work, the `QEMU_CPU=POWER8` configuration needed to be
dropped to avoid a new SIGILL. Doing some debugging locally, the crash
comes from an `extswsli` (per `powerpc:common64` in gdb-multiarch) in
the `ld64.so` available with PowerPC, which qemu rejects when set to
power8. Testing a build with `+crt-static` hits the same issue at a
`maddld` in `__libc_start_main_impl`.
Rust isn't needed to reproduce this:
$ cat a.c
#include <stdio.h>
int main() {
printf("Hello, world!\n");
}
$ powerpc64le-linux-gnu-gcc a.c
$ QEMU_CPU=power8 QEMU_LD_PREFIX=/usr/powerpc64le-linux-gnu/ ./a.out
qemu: uncaught target signal 4 (Illegal instruction) - core dumped
Illegal instruction
So the cross toolchain provided by Debian must have a power9 baseline
rather than rustc's power8. Alternatively, qemu may be incorrectly
rejecting these instructions (I can't find a source on whether or not
they should be available for power8). Testing instead with the `-musl`
toolchain and ppc linker from musl.cc works correctly.
In any case, things work with the default qemu config so it seems fine
to drop. The env was originally added in 5d164a4edafb ("fix the
powerpc64le target") but whatever the problem was there appears to no
longer be relevant.
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We pretty often get at least one job failed because of failure to pull
the musl git repo. Switch this to the unofficial mirror [1] which should
be more reliable.
Link: https://github.com/kraj/musl [1]
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Wasm support has since been released, so we no longer need to depend on
a git version of `object`.
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This includes a qemu update from 8.2.2 to 9.2.1 which should hopefully
fix some bugs we have encountered.
PowerPC64LE is skipped for now because the new version seems to cause a
number of new SIGILLs.
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intentionally not `T: ?Sized`, and document (publically) an alternative.
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This primarily pulls in alexcrichton/dlmalloc-rs/55 and
alexcrichton/dlmalloc-rs/54 to address 144199. Notably the highest byte
in the wasm address space is no longer allocatable and additionally the
allocator internally uses `wrapping_add` instead of `add` on pointers
since on 32-bit platforms offsets might be larger than half the address
space.
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Fix broken TLS destructors on 32-bit win7
Fixes rust-lang/rust#141300
On the 32-bit win7 target, we use OS TLS instead of native TLS, due to issues with how the OS handles alignment. Unfortunately, this caused issues due to the TLS destructors not running, causing memory leaks among other problems.
On Windows, to support OS TLS, the TlsAlloc family of function is used by Rust. This function does not support TLS destructors at all. However, rust has some code to emulate those destructors, by leveraging the TLS support functionality found in the MSVC CRT (specifically, in tlssup.c of the CRT).
To use this functionality, the user must do two things:
1. They must put the address to their callback in a section between `.CRT$XLB` and `.CRT$XLY`.
2. They must add a reference to `_tls_used` (or `__tls_used` on x86) to make sure the TLS support code in tlssup.c isn't garbage collected by the linker.
Prior to this commit, this second bit wasn't being done properly by the Rust TLS support code. Instead of adding a reference to _tls_used, it instead had a reference to its own callback to prevent it from getting GC'd by the linker. While this is _also_ necessary, not having a reference on _tls_used made the entire support non-functional.
This commit reworks the code to:
1. Add an unconditional `#[used]` attribute on the CALLBACK, which should be enough to prevent it from getting GC'd by the linker.
2. Add a reference to `_tls_used`, which should pull the TLS support code into the Rust programs and not let it be GC'd by the linker.
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Pull recent changes from https://github.com/rust-lang/rust via Josh.
Upstream ref: 5a30e4307f0506bed87eeecd171f8366fdbda1dc
Filtered ref: 59749e9f8c765d3021796a9fe0c188643c4b8d77
This merge was created using https://github.com/rust-lang/josh-sync.
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This updates the rust-version file to 5a30e4307f0506bed87eeecd171f8366fdbda1dc.
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Move `std_detect` into stdlib
This PR moves the `std_detect` crate from `stdarch` to be a part of rust-lang/rust instead.
The first commit actually moves the whole directory from the stdarch Josh subtree, so that git blame history is kept intact. Then I had to make a few changes to appease `tidy`.
The most complex thing here is porting the tests. We can't have `std_detect` both in r-l/r and stdarch, because they could get desynchronized, so we have to perform the move more or less "atomically", which means that we also have to port all the existing `std_detect` tests from the `stdarch` repository.
The stdarch repo runs the following `std_detect` tests:
### Build
The `build-std-detect.sh` script (https://github.com/rust-lang/stdarch/blob/e2b6512aed87df45294ae680181eeef7a802cd95/ci/build-std-detect.sh) builds `std_detect` using the nightly compiler for several targets. This will be subsumed by normal `x build library` on our Tier 1/2 targets. However, the stdarch repository also tests the following targets:
- aarch64-unknown-freebsd
- armv6-unknown-freebsd
- powerpc-unknown-freebsd
- powerpc64-unknown-freebsd
- aarch64-unknown-openbsd
Which we don't build/test on our CI currently. I think we have mostly two options here:
1) Ignore these targets
2) Create a special CI job that will build stage 1 rustc and then cross-compile std (or just the `std_detect` crate?) for these targets.
### Documentation
The `dox.sh` script (https://github.com/rust-lang/stdarch/blob/3fec5adcd52a815f227805d4959a25b6402c7fd5/ci/dox.sh) builds and documents `std_detect` for several targets. All of them are Tier 2/we have `dist-` jobs for them, so I think that we can just skip this and let our normal CI subsume it?
### Tests
The `run.sh` script (https://github.com/rust-lang/stdarch/blob/1b201cec2cca7465602a65ed6ae60517224b15f3/ci/run.sh) runs `cargo test` on `std_detect` with a bunch of variations of feature flags. This will be subsumed by `x test library` in our CI. The only problem is that `stdarch` runs these tests for a ludicrous number of targets:
```
- tuple: i686-unknown-linux-gnu
- tuple: x86_64-unknown-linux-gnu
- tuple: arm-unknown-linux-gnueabihf
- tuple: armv7-unknown-linux-gnueabihf
- tuple: aarch64-unknown-linux-gnu
- tuple: aarch64_be-unknown-linux-gnu
- tuple: riscv32gc-unknown-linux-gnu
- tuple: riscv64gc-unknown-linux-gnu
- tuple: powerpc-unknown-linux-gnu
- tuple: powerpc64-unknown-linux-gnu
- tuple: powerpc64le-unknown-linux-gnu
- tuple: s390x-unknown-linux-gnu
- tuple: i586-unknown-linux-gnu
- tuple: nvptx64-nvidia-cuda
- tuple: thumbv6m-none-eabi
- tuple: thumbv7m-none-eabi
- tuple: thumbv7em-none-eabi
- tuple: thumbv7em-none-eabihf
- tuple: loongarch64-unknown-linux-gnu
- tuple: wasm32-wasip1
- tuple: x86_64-apple-darwin
- tuple: x86_64-apple-ios-macabi
- tuple: aarch64-apple-darwin
- tuple: aarch64-apple-ios-macabi
- tuple: x86_64-pc-windows-msvc
- tuple: i686-pc-windows-msvc
- tuple: aarch64-pc-windows-msvc
- tuple: x86_64-pc-windows-gnu
- tuple: aarch64-unknown-linux-gnu
- tuple: aarch64_be-unknown-linux-gnu
- tuple: armv7-unknown-linux-gnueabihf
- tuple: loongarch64-unknown-linux-gnu
- tuple: powerpc-unknown-linux-gnu
- tuple: powerpc64-unknown-linux-gnu
- tuple: powerpc64le-unknown-linux-gnu
- tuple: riscv32gc-unknown-linux-gnu
- tuple: riscv64gc-unknown-linux-gnu
- tuple: s390x-unknown-linux-gnu
- tuple: x86_64-unknown-linux-gnu
- tuple: aarch64-apple-darwin
- tuple: aarch64-apple-ios-macabi
```
We definitely do not run *tests* for all of these targets on our CI.
# Outcome
We have decided to just subsume std_detect tests by our normal test suite for now, and not create a separate CI job. Therefore, this PR performs the following changes in target testing for `std_detect`:
The following T3 targets would go from "build" to "nothing":
```
aarch64-unknown-freebsd (T3)
armv6-unknown-freebsd (T3)
powerpc-unknown-freebsd (T3)
powerpc64-unknown-freebsd (T3)
aarch64-unknown-openbsd (T3)
```
The following T3 targets would go from "test" to "nothing":
```
aarch64_be-unknown-linux-gnu (T3)
riscv32gc-unknown-liux-gnu (T3)
```
The following T2 targets would go from "test" to "build":
```
arm-unknown-linux-gnueabihf (T2)
armv7-unknown-linux-gnueabihf (T2)
riscv64gc-unknown-linux-gnu (T2)
powerpc-unknown-linux-gnu (T2)
powerpc64-unknown-linux-gnu (T2)
powerpc64le-unknown-linux-gnu (T2)
s390x-unknown-linux-gnu (T2)
i586-unknown-linux-gnu (T2)
loongarch64-unknown-linux-gnu (T2)
wasm32-wasip1 (T2)
x86_64-apple-ios-macabi (T2)
aarch64-apple-ios-macabi (T2)
aarch64-pc-windows-msvc (T2)
armv7-unknown-linux-gnueabihf (T2)
loongarch64-unknown-linux-gnu (T2)
powerpc-unknown-linux-gnu (T2)
```
I have confirmed in https://github.com/rust-lang/stdarch/pull/1873 that the current version of this PR would pass stdarch's CI testsuite.
r? `@ghost`
try-job: armhf-gnu
try-job: arm-android
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We now have access to native runners, so make use of them for these
architectures. The existing ppc64le Docker job is kept for now.
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- Use EFI_TCP4_GET_MODE_DATA to be able to query for ttl, nodelay,
peer_addr and socket_addr.
- peer_addr is needed for implementation of `accept`.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
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Rename `tests/{assembly,codegen}` into `tests/{assembly,codegen}-llvm` and ignore these testsuites if configured backend doesn't match
Follow-up of https://github.com/rust-lang/rust/pull/144125.
This PR changes `compiletest` so that `asm` tests are only run if they match the current codegen backend. To better reflect it, I renamed the `tests/ui/asm` folder into `tests/ui/asm-llvm`. Like that, we can add new asm tests for other backends if we want without needing to add extra code to `compiletest`.
Next step will be to use the new code annotations added in rust-lang/rust#144125 to ignore ui tests failing in cg_gcc until it's fixed on our side.
cc `@antoyo` `@oli-obk`
r? `@Kobzol`
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They are subsumed by the main repo licenses.
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