| Age | Commit message (Collapse) | Author | Lines |
|---|
|
previously, we only held a lock for printing the backtrace itself. since all threads were printing to the same file descriptor, that meant random output in the default panic hook would be interleaved with the backtrace. now, we hold the lock for the full duration of the hook, and the output is ordered.
|
|
Use pidfd_spawn for faster process spawning when a PidFd is requested
glibc 2.39 added `pidfd_spawnp` and `pidfd_getpid` which makes it possible to get pidfds while staying on the CLONE_VFORK path.
verified that vfork gets used with strace:
```
$ strace -ff -e pidfd_open,clone3,openat,execve,waitid,close ./x test std --no-doc -- pidfd
[...]
[pid 2820532] clone3({flags=CLONE_VM|CLONE_PIDFD|CLONE_VFORK|CLONE_CLEAR_SIGHAND, pidfd=0x7b7f885fec6c, exit_signal=SIGCHLD, stack=0x7b7f88aff000, stack_size=0x9000}strace: Process 2820533 attached
<unfinished ...>
[pid 2820533] execve("/home/the8472/bin/sleep", ["sleep", "1000"], 0x7ffdd0e268d8 /* 107 vars */) = -1 ENOENT (No such file or directory)
[pid 2820533] execve("/home/the8472/.cargo/bin/sleep", ["sleep", "1000"], 0x7ffdd0e268d8 /* 107 vars */) = -1 ENOENT (No such file or directory)
[pid 2820533] execve("/usr/local/bin/sleep", ["sleep", "1000"], 0x7ffdd0e268d8 /* 107 vars */) = -1 ENOENT (No such file or directory)
[pid 2820533] execve("/usr/bin/sleep", ["sleep", "1000"], 0x7ffdd0e268d8 /* 107 vars */ <unfinished ...>
[pid 2820532] <... clone3 resumed> => {pidfd=[3]}, 88) = 2820533
[pid 2820533] <... execve resumed>) = 0
[pid 2820532] openat(AT_FDCWD, "/proc/self/fdinfo/3", O_RDONLY|O_CLOEXEC) = 4
[pid 2820532] close(4) = 0
```
Tracking issue: #82971
|
|
|
|
Rename `lazy_cell_consume` to `lazy_cell_into_inner`
Name this something that is less confusable with an atomic consume API for `{Lazy,Once}Lock`.
|
|
Name this something that is less confusable with an atomic consume API for
`{Lazy,Once}Lock`.
|
|
|
|
|
|
That would give it alignment of 1 which is ABI-incompatible with its C
definition.
|
|
|
|
|
|
control how a new process should display its window (normal, minimized, maximized, etc)
|
|
clarify `sys::unix::fd::FileDesc::drop` comment
closes #66876
simply clarifies some resource-relevant things regarding the `close` syscall to reduce the amount of search needed in other parts of the web.
|
|
|
|
|
|
|
|
|
|
once_lock: make test not take as long in Miri
Allocating 1000 list elements takes a while (`@zachs18` reported >5min), so let's reduce the iteration count when running in Miri. Unfortunately due to this clever `while let i @ 0..LEN =` thing, the count needs to be a constants, and constants cannot be shadowed, so we need to use another trick to hide the `cfg!(miri)` from the docs. (I think this loop condition may be a bit too clever, it took me a bit to decipher. Ideally this would be `while let i = ... && i < LEN`, but that is not stable yet.)
|
|
Improve std::Path's Hash quality by avoiding prefix collisions
This adds a bit rotation to the already existing state so that the same sequence of characters chunked at different offsets into separate path components results in different hashes.
The tests are from #127255
Closes #127254
|
|
|
|
|
|
impl PathBuf::add_extension and Path::with_added_extension
See the ACP for motivation and discussions - https://github.com/rust-lang/libs-team/issues/368
|
|
|
|
|
|
Co-authored-by: Ralf Jung <post@ralfj.de>
|
|
Signed-off-by: tison <wander4096@gmail.com>
|
|
Signed-off-by: tison <wander4096@gmail.com>
|
|
For Windows, this allows defining imports without needing the user to have import libraries. It's intended for this to become the default.
|
|
|
|
Update windows-bindgen to 0.58.0
This also switches from the bespoke `std` generated bindings to the normal `sys` ones everyone else uses.
This has almost no difference except that the `sys` bindings use the `windows_targets::links!` macro for FFI imports, which we implement manually. This does cause the diff to look much larger than it really is but the bulk of the changes are mostly contained to the generated code.
|
|
|
|
|
|
Remove unqualified form import of io::Error in process_vxworks.rs and fallback on remove_dir_impl for vxworks
Hi all,
This is to address issue #127084. On inspections it was found that io::Error refrences were all of qualified form and there was no need to add a unqualified form import. Also to successfully build rust for vxworks, we need to fallback on the remove_impl_dir implementations.
Thank you.
|
|
wasm64 build with target-feature=+simd128,+atomics
Fixes https://github.com/rust-lang/rust/issues/126778
|
|
Signed-off-by: tison <wander4096@gmail.com>
|
|
|
|
|
|
|
|
generic function, and wrap it in `catch_unwind`
|
|
|
|
|
|
|
|
Stabilize `hint::assert_unchecked`
Make the following API stable, including const:
```rust
// core::hint, std::hint
pub const unsafe fn assert_unchecked(p: bool);
```
This PR also reworks some of the documentation and adds an example.
Tracking issue: https://github.com/rust-lang/rust/issues/119131
FCP: https://github.com/rust-lang/rust/issues/119131#issuecomment-1906394087. The docs update should resolve the remaining concern.
|
|
|
|
chore: remove duplicate words
remove duplicate words in comments to improve readability.
|
|
|
|
Stabilize `PanicInfo::message()` and `PanicMessage`
Resolves #66745
This stabilizes the [`PanicInfo::message()`](https://doc.rust-lang.org/nightly/core/panic/struct.PanicInfo.html#method.message) and [`PanicMessage`](https://doc.rust-lang.org/nightly/core/panic/struct.PanicMessage.html).
Demonstration of [custom panic handler](https://github.com/StackOverflowExcept1on/panicker):
```rust
#![no_std]
#![no_main]
extern crate libc;
#[no_mangle]
extern "C" fn main() -> libc::c_int {
panic!("I just panic every time");
}
#[panic_handler]
fn my_panic(panic_info: &core::panic::PanicInfo) -> ! {
use arrayvec::ArrayString;
use core::fmt::Write;
let message = panic_info.message();
let location = panic_info.location().unwrap();
let mut debug_msg = ArrayString::<1024>::new();
let _ = write!(&mut debug_msg, "panicked with '{message}' at '{location}'");
if debug_msg.try_push_str("\0").is_ok() {
unsafe {
libc::puts(debug_msg.as_ptr() as *const _);
}
}
unsafe { libc::exit(libc::EXIT_FAILURE) }
}
```
```
$ cargo +stage1 run --release
panicked with 'I just panic every time' at 'src/main.rs:8:5'
```
- [x] FCP: https://github.com/rust-lang/rust/issues/66745#issuecomment-2198143725
r? libs-api
|
|
qualified in process_vxworks.rs
|
|
std: separate TLS key creation from TLS access
Currently, `std` performs an atomic load to get the OS key on every access to `StaticKey` even when the key is already known. This PR thus replaces `StaticKey` with the platform-specific `get` and `set` function and a new `LazyKey` type that acts as a `LazyLock<Key>`, allowing the reuse of the retreived key for multiple accesses.
Related to #110897.
|
|
|
|
set self.is_known_utf8 to false in extend_from_slice
try-job: x86_64-msvc
closes #126977
Related to #126885, #126333, and [this conversation](<https://github.com/rust-lang/rust/commit/aa46a3368eb017eba41bfab956c7787d46c09935#r143539097>)
|
