From 20431706a863f92cb37dc512fef6e48d192aaf2c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:11:38 +0200 Subject: Merging upstream version 1.66.0+dfsg1. Signed-off-by: Daniel Baumann --- vendor/crossbeam-epoch/.cargo-checksum.json | 2 +- vendor/crossbeam-epoch/CHANGELOG.md | 5 ++ vendor/crossbeam-epoch/Cargo.lock | 48 ++++++------- vendor/crossbeam-epoch/Cargo.toml | 7 +- vendor/crossbeam-epoch/no_atomic.rs | 6 ++ vendor/crossbeam-epoch/src/default.rs | 34 +++++---- vendor/crossbeam-epoch/src/lib.rs | 2 +- vendor/crossbeam-epoch/src/sync/mod.rs | 3 + vendor/crossbeam-epoch/src/sync/once_lock.rs | 103 +++++++++++++++++++++++++++ 9 files changed, 164 insertions(+), 46 deletions(-) create mode 100644 vendor/crossbeam-epoch/src/sync/once_lock.rs (limited to 'vendor/crossbeam-epoch') diff --git a/vendor/crossbeam-epoch/.cargo-checksum.json b/vendor/crossbeam-epoch/.cargo-checksum.json index 21e5f8500..d069e3a4b 100644 --- a/vendor/crossbeam-epoch/.cargo-checksum.json +++ b/vendor/crossbeam-epoch/.cargo-checksum.json @@ -1 +1 @@ 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\ No newline at end of file diff --git a/vendor/crossbeam-epoch/CHANGELOG.md b/vendor/crossbeam-epoch/CHANGELOG.md index b05a52dfc..3aac87b7f 100644 --- a/vendor/crossbeam-epoch/CHANGELOG.md +++ b/vendor/crossbeam-epoch/CHANGELOG.md @@ -1,3 +1,8 @@ +# Version 0.9.11 + +- Removes the dependency on the `once_cell` crate to restore the MSRV. (#913) +- Work around [rust-lang#98302](https://github.com/rust-lang/rust/issues/98302), which causes compile error on windows-gnu when LTO is enabled. (#913) + # Version 0.9.10 - Bump the minimum supported Rust version to 1.38. (#877) diff --git a/vendor/crossbeam-epoch/Cargo.lock b/vendor/crossbeam-epoch/Cargo.lock index 726980a93..3ded5c77e 100644 --- a/vendor/crossbeam-epoch/Cargo.lock +++ b/vendor/crossbeam-epoch/Cargo.lock @@ -31,14 +31,13 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" [[package]] name = "crossbeam-epoch" -version = "0.9.10" +version = "0.9.11" dependencies = [ "autocfg", "cfg-if", "crossbeam-utils", "loom", "memoffset", - "once_cell", "rand", "rustversion", "scopeguard", @@ -46,13 +45,12 @@ dependencies = [ [[package]] name = "crossbeam-utils" -version = "0.8.11" +version = "0.8.12" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "51887d4adc7b564537b15adcfb307936f8075dfcd5f00dde9a9f1d29383682bc" +checksum = "edbafec5fa1f196ca66527c1b12c2ec4745ca14b50f1ad8f9f6f720b55d11fac" dependencies = [ "cfg-if", "loom", - "once_cell", ] [[package]] @@ -87,9 +85,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646" [[package]] name = "libc" -version = "0.2.126" +version = "0.2.133" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836" +checksum = "c0f80d65747a3e43d1596c7c5492d95d5edddaabd45a7fcdb02b95f644164966" [[package]] name = "log" @@ -133,9 +131,9 @@ dependencies = [ [[package]] name = "once_cell" -version = "1.13.0" +version = "1.15.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "18a6dbe30758c9f83eb00cbea4ac95966305f5a7772f3f42ebfc7fc7eddbd8e1" +checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1" [[package]] name = "pin-project-lite" @@ -151,18 +149,18 @@ checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872" [[package]] name = "proc-macro2" -version = "1.0.40" +version = "1.0.46" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "dd96a1e8ed2596c337f8eae5f24924ec83f5ad5ab21ea8e455d3566c69fbcaf7" +checksum = "94e2ef8dbfc347b10c094890f778ee2e36ca9bb4262e86dc99cd217e35f3470b" dependencies = [ "unicode-ident", ] [[package]] name = "quote" -version = "1.0.20" +version = "1.0.21" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3bcdf212e9776fbcb2d23ab029360416bb1706b1aea2d1a5ba002727cbcab804" +checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179" dependencies = [ "proc-macro2", ] @@ -190,9 +188,9 @@ dependencies = [ [[package]] name = "rand_core" -version = "0.6.3" +version = "0.6.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d34f1408f55294453790c48b2f1ebbb1c5b4b7563eb1f418bcfcfdbb06ebb4e7" +checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c" dependencies = [ "getrandom", ] @@ -223,9 +221,9 @@ checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244" [[package]] name = "rustversion" -version = "1.0.8" +version = "1.0.9" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "24c8ad4f0c00e1eb5bc7614d236a7f1300e3dbd76b68cac8e06fb00b015ad8d8" +checksum = "97477e48b4cf8603ad5f7aaf897467cf42ab4218a38ef76fb14c2d6773a6d6a8" [[package]] name = "scoped-tls" @@ -256,9 +254,9 @@ checksum = "2fd0db749597d91ff862fd1d55ea87f7855a744a8425a64695b6fca237d1dad1" [[package]] name = "syn" -version = "1.0.98" +version = "1.0.101" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c50aef8a904de4c23c788f104b7dddc7d6f79c647c7c8ce4cc8f73eb0ca773dd" +checksum = "e90cde112c4b9690b8cbe810cba9ddd8bc1d7472e2cae317b69e9438c1cba7d2" dependencies = [ "proc-macro2", "quote", @@ -276,9 +274,9 @@ dependencies = [ [[package]] name = "tracing" -version = "0.1.35" +version = "0.1.36" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a400e31aa60b9d44a52a8ee0343b5b18566b03a8321e0d321f695cf56e940160" +checksum = "2fce9567bd60a67d08a16488756721ba392f24f29006402881e43b19aac64307" dependencies = [ "cfg-if", "pin-project-lite", @@ -299,9 +297,9 @@ dependencies = [ [[package]] name = "tracing-core" -version = "0.1.28" +version = "0.1.29" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7b7358be39f2f274f322d2aaed611acc57f382e8eb1e5b48cb9ae30933495ce7" +checksum = "5aeea4303076558a00714b823f9ad67d58a3bbda1df83d8827d21193156e22f7" dependencies = [ "once_cell", "valuable", @@ -338,9 +336,9 @@ dependencies = [ [[package]] name = "unicode-ident" -version = "1.0.2" +version = "1.0.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "15c61ba63f9235225a22310255a29b806b907c9b8c964bcbd0a2c70f3f2deea7" +checksum = "dcc811dc4066ac62f84f11307873c4850cb653bfa9b1719cee2bd2204a4bc5dd" [[package]] name = "valuable" diff --git a/vendor/crossbeam-epoch/Cargo.toml b/vendor/crossbeam-epoch/Cargo.toml index 1551c3c2c..0f8e23864 100644 --- a/vendor/crossbeam-epoch/Cargo.toml +++ b/vendor/crossbeam-epoch/Cargo.toml @@ -13,7 +13,7 @@ edition = "2018" rust-version = "1.38" name = "crossbeam-epoch" -version = "0.9.10" +version = "0.9.11" description = "Epoch-based garbage collection" homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-epoch" readme = "README.md" @@ -41,10 +41,6 @@ default-features = false [dependencies.memoffset] version = "0.6" -[dependencies.once_cell] -version = "1" -optional = true - [dependencies.scopeguard] version = "1.1" default-features = false @@ -69,7 +65,6 @@ nightly = ["crossbeam-utils/nightly"] std = [ "alloc", "crossbeam-utils/std", - "once_cell", ] [target."cfg(crossbeam_loom)".dependencies.loom-crate] diff --git a/vendor/crossbeam-epoch/no_atomic.rs b/vendor/crossbeam-epoch/no_atomic.rs index f740aaee1..675d9a27e 100644 --- a/vendor/crossbeam-epoch/no_atomic.rs +++ b/vendor/crossbeam-epoch/no_atomic.rs @@ -2,6 +2,8 @@ // It is not intended for manual editing. const NO_ATOMIC_CAS: &[&str] = &[ + "armv4t-none-eabi", + "armv5te-none-eabi", "avr-unknown-gnu-atmega328", "bpfeb-unknown-none", "bpfel-unknown-none", @@ -10,6 +12,7 @@ const NO_ATOMIC_CAS: &[&str] = &[ "riscv32im-unknown-none-elf", "riscv32imc-unknown-none-elf", "thumbv4t-none-eabi", + "thumbv5te-none-eabi", "thumbv6m-none-eabi", ]; @@ -18,7 +21,9 @@ const NO_ATOMIC_64: &[&str] = &[ "arm-linux-androideabi", "armebv7r-none-eabi", "armebv7r-none-eabihf", + "armv4t-none-eabi", "armv4t-unknown-linux-gnueabi", + "armv5te-none-eabi", "armv5te-unknown-linux-gnueabi", "armv5te-unknown-linux-musleabi", "armv5te-unknown-linux-uclibceabi", @@ -55,6 +60,7 @@ const NO_ATOMIC_64: &[&str] = &[ "riscv32imac-unknown-xous-elf", "riscv32imc-unknown-none-elf", "thumbv4t-none-eabi", + "thumbv5te-none-eabi", "thumbv6m-none-eabi", "thumbv7em-none-eabi", "thumbv7em-none-eabihf", diff --git a/vendor/crossbeam-epoch/src/default.rs b/vendor/crossbeam-epoch/src/default.rs index c2b4852a4..b42c1c7a7 100644 --- a/vendor/crossbeam-epoch/src/default.rs +++ b/vendor/crossbeam-epoch/src/default.rs @@ -8,22 +8,30 @@ use crate::collector::{Collector, LocalHandle}; use crate::guard::Guard; use crate::primitive::thread_local; #[cfg(not(crossbeam_loom))] -use once_cell::sync::Lazy; +use crate::sync::once_lock::OnceLock; -/// The global data for the default garbage collector. -#[cfg(not(crossbeam_loom))] -static COLLECTOR: Lazy = Lazy::new(Collector::new); -// FIXME: loom does not currently provide the equivalent of Lazy: -// https://github.com/tokio-rs/loom/issues/263 -#[cfg(crossbeam_loom)] -loom::lazy_static! { - /// The global data for the default garbage collector. - static ref COLLECTOR: Collector = Collector::new(); +fn collector() -> &'static Collector { + #[cfg(not(crossbeam_loom))] + { + /// The global data for the default garbage collector. + static COLLECTOR: OnceLock = OnceLock::new(); + COLLECTOR.get_or_init(Collector::new) + } + // FIXME: loom does not currently provide the equivalent of Lazy: + // https://github.com/tokio-rs/loom/issues/263 + #[cfg(crossbeam_loom)] + { + loom::lazy_static! { + /// The global data for the default garbage collector. + static ref COLLECTOR: Collector = Collector::new(); + } + &COLLECTOR + } } thread_local! { /// The per-thread participant for the default garbage collector. - static HANDLE: LocalHandle = COLLECTOR.register(); + static HANDLE: LocalHandle = collector().register(); } /// Pins the current thread. @@ -40,7 +48,7 @@ pub fn is_pinned() -> bool { /// Returns the default global collector. pub fn default_collector() -> &'static Collector { - &COLLECTOR + collector() } #[inline] @@ -50,7 +58,7 @@ where { HANDLE .try_with(|h| f(h)) - .unwrap_or_else(|_| f(&COLLECTOR.register())) + .unwrap_or_else(|_| f(&collector().register())) } #[cfg(all(test, not(crossbeam_loom)))] diff --git a/vendor/crossbeam-epoch/src/lib.rs b/vendor/crossbeam-epoch/src/lib.rs index 4cf982b6b..b432c1f40 100644 --- a/vendor/crossbeam-epoch/src/lib.rs +++ b/vendor/crossbeam-epoch/src/lib.rs @@ -107,7 +107,7 @@ mod primitive { // https://github.com/tokio-rs/loom#handling-loom-api-differences impl UnsafeCell { #[inline] - pub(crate) fn new(data: T) -> UnsafeCell { + pub(crate) const fn new(data: T) -> UnsafeCell { UnsafeCell(::core::cell::UnsafeCell::new(data)) } diff --git a/vendor/crossbeam-epoch/src/sync/mod.rs b/vendor/crossbeam-epoch/src/sync/mod.rs index 5c06e7643..08981be25 100644 --- a/vendor/crossbeam-epoch/src/sync/mod.rs +++ b/vendor/crossbeam-epoch/src/sync/mod.rs @@ -1,4 +1,7 @@ //! Synchronization primitives. pub(crate) mod list; +#[cfg(feature = "std")] +#[cfg(not(crossbeam_loom))] +pub(crate) mod once_lock; pub(crate) mod queue; diff --git a/vendor/crossbeam-epoch/src/sync/once_lock.rs b/vendor/crossbeam-epoch/src/sync/once_lock.rs new file mode 100644 index 000000000..c1fefc96c --- /dev/null +++ b/vendor/crossbeam-epoch/src/sync/once_lock.rs @@ -0,0 +1,103 @@ +// Based on unstable std::sync::OnceLock. +// +// Source: https://github.com/rust-lang/rust/blob/8e9c93df464b7ada3fc7a1c8ccddd9dcb24ee0a0/library/std/src/sync/once_lock.rs + +use core::cell::UnsafeCell; +use core::mem::MaybeUninit; +use core::sync::atomic::{AtomicBool, Ordering}; +use std::sync::Once; + +pub(crate) struct OnceLock { + once: Once, + // Once::is_completed requires Rust 1.43, so use this to track of whether they have been initialized. + is_initialized: AtomicBool, + value: UnsafeCell>, + // Unlike std::sync::OnceLock, we don't need PhantomData here because + // we don't use #[may_dangle]. +} + +unsafe impl Sync for OnceLock {} +unsafe impl Send for OnceLock {} + +impl OnceLock { + /// Creates a new empty cell. + #[must_use] + pub(crate) const fn new() -> Self { + Self { + once: Once::new(), + is_initialized: AtomicBool::new(false), + value: UnsafeCell::new(MaybeUninit::uninit()), + } + } + + /// Gets the contents of the cell, initializing it with `f` if the cell + /// was empty. + /// + /// Many threads may call `get_or_init` concurrently with different + /// initializing functions, but it is guaranteed that only one function + /// will be executed. + /// + /// # Panics + /// + /// If `f` panics, the panic is propagated to the caller, and the cell + /// remains uninitialized. + /// + /// It is an error to reentrantly initialize the cell from `f`. The + /// exact outcome is unspecified. Current implementation deadlocks, but + /// this may be changed to a panic in the future. + pub(crate) fn get_or_init(&self, f: F) -> &T + where + F: FnOnce() -> T, + { + // Fast path check + if self.is_initialized() { + // SAFETY: The inner value has been initialized + return unsafe { self.get_unchecked() }; + } + self.initialize(f); + + debug_assert!(self.is_initialized()); + + // SAFETY: The inner value has been initialized + unsafe { self.get_unchecked() } + } + + #[inline] + fn is_initialized(&self) -> bool { + self.is_initialized.load(Ordering::Acquire) + } + + #[cold] + fn initialize(&self, f: F) + where + F: FnOnce() -> T, + { + let slot = self.value.get().cast::(); + let is_initialized = &self.is_initialized; + + self.once.call_once(|| { + let value = f(); + unsafe { + slot.write(value); + } + is_initialized.store(true, Ordering::Release); + }); + } + + /// # Safety + /// + /// The value must be initialized + unsafe fn get_unchecked(&self) -> &T { + debug_assert!(self.is_initialized()); + &*self.value.get().cast::() + } +} + +impl Drop for OnceLock { + fn drop(&mut self) { + if self.is_initialized() { + // SAFETY: The inner value has been initialized + unsafe { self.value.get().cast::().drop_in_place() }; + } + } +} -- cgit v1.2.3