From 246f239d9f40f633160f0c18f87a20922d4e77bb Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:06:37 +0200 Subject: Merging debian version 1.65.0+dfsg1-2. Signed-off-by: Daniel Baumann --- vendor/once_cell/.cargo-checksum.json | 2 +- vendor/once_cell/CHANGELOG.md | 5 ++ vendor/once_cell/Cargo.lock | 164 +++------------------------------- vendor/once_cell/Cargo.toml | 4 +- vendor/once_cell/src/imp_std.rs | 93 ++++++++++++++----- 5 files changed, 94 insertions(+), 174 deletions(-) (limited to 'vendor/once_cell') diff --git a/vendor/once_cell/.cargo-checksum.json b/vendor/once_cell/.cargo-checksum.json index 247fbbfc0..9dffae3ad 100644 --- a/vendor/once_cell/.cargo-checksum.json +++ b/vendor/once_cell/.cargo-checksum.json @@ -1 +1 @@ -{"files":{"CHANGELOG.md":"6b2f19d43eb81a0d5e91340c27953334a1fce5f34056069ee126f4e40747606b","Cargo.lock":"dab17e5aacff6a0ede5fad63ae4aaa5173391f7a37cfac1ee51078a172816bb4","Cargo.toml":"6304404996d3c7506816b51df07b8f8fc3e4900e3d3a2c97dd7936567f20bbcc","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"813d262a320611ba874c4b2488256bdb2b4073649616a1471b389d464a704301","bors.toml":"ebd69f714a49dceb8fd10ebadfea6e2767be4732fdef49eddf6239151b4bc78c","examples/bench.rs":"1597a52529f75d6c5ad0b86759a775b1d723dfa810e2016317283b13594219da","examples/bench_acquire.rs":"9f4912ca262194cb55e893c33739c85c2f4868d07905b9dd3238552b6ce8a6e4","examples/bench_vs_lazy_static.rs":"d527294a2e73b53ac5faed8b316dfd1ae2a06adb31384134af21f10ce76333a5","examples/lazy_static.rs":"90541b093ed1d1cbb73f4097ff02cf80657e28264d281d6a31d96a708fdfea90","examples/reentrant_init_deadlocks.rs":"ff84929de27a848e5b155549caa96db5db5f030afca975f8ba3f3da640083001","examples/regex.rs":"4a2e0fb093c7f5bbe0fff8689fc0c670c5334344a1bfda376f5faa98a05d459f","examples/test_synchronization.rs":"88abd5c16275bb2f2d77eaecf369d97681404a77b8edd0021f24bfd377c46be3","src/imp_pl.rs":"1959494004fb0ee7443e97c4abd8be69d7173fe2b66f8fff0bca7b5c8e512525","src/imp_std.rs":"476c60b61762bda710c68624fb83531cc457780cf3e5223f40a5362d33f3ab5c","src/lib.rs":"5320847175dc279e7abd2d98e17ab8d05b2eb7e383a4f249623b71a5209f2346","src/race.rs":"5a19afca4b5510d09ca7317b96f5642725c58b0969b2bdeb7275ed674d061e5d","tests/it.rs":"501c4ab3f4e718fa555707e9d32f3688c05e4ef8ea967e72e1c99da6bb06a0ad"},"package":"18a6dbe30758c9f83eb00cbea4ac95966305f5a7772f3f42ebfc7fc7eddbd8e1"} \ No newline at end of file +{"files":{"CHANGELOG.md":"1638f5757551c399130656e1daab76b0322538923a791bf39e9ec247257daf79","Cargo.lock":"417a830ee5d5359f413fdf973391bf137de7ea8b075d83dcf798f1d3de36cfda","Cargo.toml":"d083a23d498e2dbf1cb3f249bdade38715b3cb237a38b733df79f20824eec4f7","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"813d262a320611ba874c4b2488256bdb2b4073649616a1471b389d464a704301","bors.toml":"ebd69f714a49dceb8fd10ebadfea6e2767be4732fdef49eddf6239151b4bc78c","examples/bench.rs":"1597a52529f75d6c5ad0b86759a775b1d723dfa810e2016317283b13594219da","examples/bench_acquire.rs":"9f4912ca262194cb55e893c33739c85c2f4868d07905b9dd3238552b6ce8a6e4","examples/bench_vs_lazy_static.rs":"d527294a2e73b53ac5faed8b316dfd1ae2a06adb31384134af21f10ce76333a5","examples/lazy_static.rs":"90541b093ed1d1cbb73f4097ff02cf80657e28264d281d6a31d96a708fdfea90","examples/reentrant_init_deadlocks.rs":"ff84929de27a848e5b155549caa96db5db5f030afca975f8ba3f3da640083001","examples/regex.rs":"4a2e0fb093c7f5bbe0fff8689fc0c670c5334344a1bfda376f5faa98a05d459f","examples/test_synchronization.rs":"88abd5c16275bb2f2d77eaecf369d97681404a77b8edd0021f24bfd377c46be3","src/imp_pl.rs":"1959494004fb0ee7443e97c4abd8be69d7173fe2b66f8fff0bca7b5c8e512525","src/imp_std.rs":"33be3a0df87e092abd68280dc72d50534d273d17eb86940e7ba2b8a45da78a70","src/lib.rs":"5320847175dc279e7abd2d98e17ab8d05b2eb7e383a4f249623b71a5209f2346","src/race.rs":"5a19afca4b5510d09ca7317b96f5642725c58b0969b2bdeb7275ed674d061e5d","tests/it.rs":"501c4ab3f4e718fa555707e9d32f3688c05e4ef8ea967e72e1c99da6bb06a0ad"},"package":"074864da206b4973b84eb91683020dbefd6a8c3f0f38e054d93954e891935e4e"} \ No newline at end of file diff --git a/vendor/once_cell/CHANGELOG.md b/vendor/once_cell/CHANGELOG.md index d5019bae3..ffb5b1df3 100644 --- a/vendor/once_cell/CHANGELOG.md +++ b/vendor/once_cell/CHANGELOG.md @@ -4,6 +4,11 @@ - +## 1.13.1 + +- Make implementation compliant with [strict provenance](https://github.com/rust-lang/rust/issues/95228). +- Upgrade `atomic-polyfill` to `1.0` + ## 1.13.0 - Add `Lazy::get`, similar to `OnceCell::get`. diff --git a/vendor/once_cell/Cargo.lock b/vendor/once_cell/Cargo.lock index 27cd64c4a..2e981967f 100644 --- a/vendor/once_cell/Cargo.lock +++ b/vendor/once_cell/Cargo.lock @@ -13,40 +13,13 @@ dependencies = [ [[package]] name = "atomic-polyfill" -version = "0.1.8" +version = "1.0.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e14bf7b4f565e5e717d7a7a65b2a05c0b8c96e4db636d6f780f03b15108cdd1b" +checksum = "d299f547288d6db8d5c3a2916f7b2f66134b15b8c1ac1c4357dd3b8752af7bb2" dependencies = [ "critical-section", ] -[[package]] -name = "bare-metal" -version = "0.2.5" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3" -dependencies = [ - "rustc_version", -] - -[[package]] -name = "bare-metal" -version = "1.0.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f8fe8f5a8a398345e52358e18ff07cc17a568fbca5c6f73873d3a62056309603" - -[[package]] -name = "bit_field" -version = "0.10.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "dcb6dd1c2376d2e096796e234a70e17e94cc2d5d54ff8ce42b28cef1d0d359a4" - -[[package]] -name = "bitfield" -version = "0.13.2" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "46afbd2983a5d5a7bd740ccb198caf5b82f45c40c09c0eed36052d91cb92e719" - [[package]] name = "bitflags" version = "1.3.2" @@ -59,48 +32,20 @@ version = "1.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" -[[package]] -name = "cortex-m" -version = "0.7.5" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "cd20d4ac4aa86f4f75f239d59e542ef67de87cce2c282818dc6e84155d3ea126" -dependencies = [ - "bare-metal 0.2.5", - "bitfield", - "embedded-hal", - "volatile-register", -] - [[package]] name = "critical-section" -version = "0.2.7" +version = "1.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "95da181745b56d4bd339530ec393508910c909c784e8962d15d722bacf0bcbcd" -dependencies = [ - "bare-metal 1.0.0", - "cfg-if", - "cortex-m", - "riscv", -] +checksum = "ce181dda5a65c00fcbce2b9d44ad9be001202a54fb321865ed273ac39aa8ccbe" [[package]] name = "crossbeam-utils" -version = "0.8.10" +version = "0.8.11" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7d82ee10ce34d7bc12c2122495e7593a9c41347ecdd64185af4ecf72cb1a7f83" +checksum = "51887d4adc7b564537b15adcfb307936f8075dfcd5f00dde9a9f1d29383682bc" dependencies = [ "cfg-if", - "once_cell 1.12.1", -] - -[[package]] -name = "embedded-hal" -version = "0.2.7" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "35949884794ad573cf46071e41c9b60efb0cb311e3ca01f7af807af1debc66ff" -dependencies = [ - "nb 0.1.3", - "void", + "once_cell 1.13.0", ] [[package]] @@ -111,9 +56,9 @@ checksum = "c8f31047daa365f19be14b47c29df4f7c3b581832407daabe6ae77397619237d" [[package]] name = "libc" -version = "0.2.126" +version = "0.2.131" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836" +checksum = "04c3b4822ccebfa39c02fc03d1534441b22ead323fa0f48bb7ddd8e6ba076a40" [[package]] name = "memchr" @@ -121,30 +66,15 @@ version = "2.2.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e" -[[package]] -name = "nb" -version = "0.1.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "801d31da0513b6ec5214e9bf433a77966320625a37860f910be265be6e18d06f" -dependencies = [ - "nb 1.0.0", -] - -[[package]] -name = "nb" -version = "1.0.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "546c37ac5d9e56f55e73b677106873d9d9f5190605e41a856503623648488cae" - [[package]] name = "once_cell" -version = "1.12.1" +version = "1.13.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ac8b1a9b2518dc799a2271eff1688707eb315f0d4697aa6b0871369ca4c4da55" +checksum = "18a6dbe30758c9f83eb00cbea4ac95966305f5a7772f3f42ebfc7fc7eddbd8e1" [[package]] name = "once_cell" -version = "1.13.0" +version = "1.13.1" dependencies = [ "atomic-polyfill", "crossbeam-utils", @@ -168,9 +98,9 @@ dependencies = [ [[package]] name = "redox_syscall" -version = "0.2.13" +version = "0.2.16" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "62f25bc4c7e55e0b0b7a1d43fb893f4fa1361d0abe38b9ce4f323c2adfe6ef42" +checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a" dependencies = [ "bitflags", ] @@ -197,51 +127,6 @@ dependencies = [ "ucd-util", ] -[[package]] -name = "riscv" -version = "0.7.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6907ccdd7a31012b70faf2af85cd9e5ba97657cc3987c4f13f8e4d2c2a088aba" -dependencies = [ - "bare-metal 1.0.0", - "bit_field", - "riscv-target", -] - -[[package]] -name = "riscv-target" -version = "0.1.2" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "88aa938cda42a0cf62a20cfe8d139ff1af20c2e681212b5b34adb5a58333f222" -dependencies = [ - "lazy_static", - "regex", -] - -[[package]] -name = "rustc_version" -version = "0.2.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a" -dependencies = [ - "semver", -] - -[[package]] -name = "semver" -version = "0.9.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403" -dependencies = [ - "semver-parser", -] - -[[package]] -name = "semver-parser" -version = "0.7.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3" - [[package]] name = "smallvec" version = "1.9.0" @@ -269,27 +154,6 @@ version = "1.0.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "fd70f467df6810094968e2fce0ee1bd0e87157aceb026a8c083bcf5e25b9efe4" -[[package]] -name = "vcell" -version = "0.1.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "77439c1b53d2303b20d9459b1ade71a83c716e3f9c34f3228c00e6f185d6c002" - -[[package]] -name = "void" -version = "1.0.2" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d" - -[[package]] -name = "volatile-register" -version = "0.2.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9ee8f19f9d74293faf70901bc20ad067dc1ad390d2cbf1e3f75f721ffee908b6" -dependencies = [ - "vcell", -] - [[package]] name = "windows-sys" version = "0.36.1" diff --git a/vendor/once_cell/Cargo.toml b/vendor/once_cell/Cargo.toml index a815a5549..e8222f163 100644 --- a/vendor/once_cell/Cargo.toml +++ b/vendor/once_cell/Cargo.toml @@ -12,7 +12,7 @@ [package] edition = "2018" name = "once_cell" -version = "1.13.0" +version = "1.13.1" authors = ["Aleksey Kladov "] exclude = [ "*.png", @@ -66,7 +66,7 @@ name = "test_synchronization" required-features = ["std"] [dependencies.atomic-polyfill] -version = "0.1" +version = "1" optional = true [dependencies.parking_lot_core] diff --git a/vendor/once_cell/src/imp_std.rs b/vendor/once_cell/src/imp_std.rs index 2bbe5b76e..4d5b5fd32 100644 --- a/vendor/once_cell/src/imp_std.rs +++ b/vendor/once_cell/src/imp_std.rs @@ -8,7 +8,7 @@ use std::{ hint::unreachable_unchecked, marker::PhantomData, panic::{RefUnwindSafe, UnwindSafe}, - sync::atomic::{AtomicBool, AtomicUsize, Ordering}, + sync::atomic::{AtomicBool, AtomicPtr, Ordering}, thread::{self, Thread}, }; @@ -24,7 +24,7 @@ pub(crate) struct OnceCell { // // State is encoded in two low bits. Only `INCOMPLETE` and `RUNNING` states // allow waiters. - queue: AtomicUsize, + queue: AtomicPtr, _marker: PhantomData<*mut Waiter>, value: UnsafeCell>, } @@ -43,7 +43,7 @@ impl UnwindSafe for OnceCell {} impl OnceCell { pub(crate) const fn new() -> OnceCell { OnceCell { - queue: AtomicUsize::new(INCOMPLETE), + queue: AtomicPtr::new(INCOMPLETE_PTR), _marker: PhantomData, value: UnsafeCell::new(None), } @@ -51,7 +51,7 @@ impl OnceCell { pub(crate) const fn with_value(value: T) -> OnceCell { OnceCell { - queue: AtomicUsize::new(COMPLETE), + queue: AtomicPtr::new(COMPLETE_PTR), _marker: PhantomData, value: UnsafeCell::new(Some(value)), } @@ -64,7 +64,7 @@ impl OnceCell { // operations visible to us, and, this being a fast path, weaker // ordering helps with performance. This `Acquire` synchronizes with // `SeqCst` operations on the slow path. - self.queue.load(Ordering::Acquire) == COMPLETE + self.queue.load(Ordering::Acquire) == COMPLETE_PTR } /// Safety: synchronizes with store to value via SeqCst read from state, @@ -145,6 +145,8 @@ impl OnceCell { const INCOMPLETE: usize = 0x0; const RUNNING: usize = 0x1; const COMPLETE: usize = 0x2; +const INCOMPLETE_PTR: *mut Waiter = INCOMPLETE as *mut Waiter; +const COMPLETE_PTR: *mut Waiter = COMPLETE as *mut Waiter; // Mask to learn about the state. All other bits are the queue of waiters if // this is in the RUNNING state. @@ -156,23 +158,24 @@ const STATE_MASK: usize = 0x3; struct Waiter { thread: Cell>, signaled: AtomicBool, - next: *const Waiter, + next: *mut Waiter, } /// Drains and notifies the queue of waiters on drop. struct Guard<'a> { - queue: &'a AtomicUsize, - new_queue: usize, + queue: &'a AtomicPtr, + new_queue: *mut Waiter, } impl Drop for Guard<'_> { fn drop(&mut self) { let queue = self.queue.swap(self.new_queue, Ordering::AcqRel); - assert_eq!(queue & STATE_MASK, RUNNING); + let state = strict::addr(queue) & STATE_MASK; + assert_eq!(state, RUNNING); unsafe { - let mut waiter = (queue & !STATE_MASK) as *const Waiter; + let mut waiter = strict::map_addr(queue, |q| q & !STATE_MASK); while !waiter.is_null() { let next = (*waiter).next; let thread = (*waiter).thread.take().unwrap(); @@ -191,17 +194,17 @@ impl Drop for Guard<'_> { // // Note: this is intentionally monomorphic #[inline(never)] -fn initialize_or_wait(queue: &AtomicUsize, mut init: Option<&mut dyn FnMut() -> bool>) { +fn initialize_or_wait(queue: &AtomicPtr, mut init: Option<&mut dyn FnMut() -> bool>) { let mut curr_queue = queue.load(Ordering::Acquire); loop { - let curr_state = curr_queue & STATE_MASK; + let curr_state = strict::addr(curr_queue) & STATE_MASK; match (curr_state, &mut init) { (COMPLETE, _) => return, (INCOMPLETE, Some(init)) => { let exchange = queue.compare_exchange( curr_queue, - (curr_queue & !STATE_MASK) | RUNNING, + strict::map_addr(curr_queue, |q| (q & !STATE_MASK) | RUNNING), Ordering::Acquire, Ordering::Acquire, ); @@ -209,9 +212,9 @@ fn initialize_or_wait(queue: &AtomicUsize, mut init: Option<&mut dyn FnMut() -> curr_queue = new_queue; continue; } - let mut guard = Guard { queue, new_queue: INCOMPLETE }; + let mut guard = Guard { queue, new_queue: INCOMPLETE_PTR }; if init() { - guard.new_queue = COMPLETE; + guard.new_queue = COMPLETE_PTR; } return; } @@ -224,24 +227,24 @@ fn initialize_or_wait(queue: &AtomicUsize, mut init: Option<&mut dyn FnMut() -> } } -fn wait(queue: &AtomicUsize, mut curr_queue: usize) { - let curr_state = curr_queue & STATE_MASK; +fn wait(queue: &AtomicPtr, mut curr_queue: *mut Waiter) { + let curr_state = strict::addr(curr_queue) & STATE_MASK; loop { let node = Waiter { thread: Cell::new(Some(thread::current())), signaled: AtomicBool::new(false), - next: (curr_queue & !STATE_MASK) as *const Waiter, + next: strict::map_addr(curr_queue, |q| q & !STATE_MASK), }; - let me = &node as *const Waiter as usize; + let me = &node as *const Waiter as *mut Waiter; let exchange = queue.compare_exchange( curr_queue, - me | curr_state, + strict::map_addr(me, |q| q | curr_state), Ordering::Release, Ordering::Relaxed, ); if let Err(new_queue) = exchange { - if new_queue & STATE_MASK != curr_state { + if strict::addr(new_queue) & STATE_MASK != curr_state { return; } curr_queue = new_queue; @@ -255,6 +258,54 @@ fn wait(queue: &AtomicUsize, mut curr_queue: usize) { } } +// Polyfill of strict provenance from https://crates.io/crates/sptr. +// +// Use free-standing function rather than a trait to keep things simple and +// avoid any potential conflicts with future stabile std API. +mod strict { + #[must_use] + #[inline] + pub(crate) fn addr(ptr: *mut T) -> usize + where + T: Sized, + { + // FIXME(strict_provenance_magic): I am magic and should be a compiler intrinsic. + // SAFETY: Pointer-to-integer transmutes are valid (if you are okay with losing the + // provenance). + unsafe { core::mem::transmute(ptr) } + } + + #[must_use] + #[inline] + pub(crate) fn with_addr(ptr: *mut T, addr: usize) -> *mut T + where + T: Sized, + { + // FIXME(strict_provenance_magic): I am magic and should be a compiler intrinsic. + // + // In the mean-time, this operation is defined to be "as if" it was + // a wrapping_offset, so we can emulate it as such. This should properly + // restore pointer provenance even under today's compiler. + let self_addr = self::addr(ptr) as isize; + let dest_addr = addr as isize; + let offset = dest_addr.wrapping_sub(self_addr); + + // This is the canonical desugarring of this operation, + // but `pointer::cast` was only stabilized in 1.38. + // self.cast::().wrapping_offset(offset).cast::() + (ptr as *mut u8).wrapping_offset(offset) as *mut T + } + + #[must_use] + #[inline] + pub(crate) fn map_addr(ptr: *mut T, f: impl FnOnce(usize) -> usize) -> *mut T + where + T: Sized, + { + self::with_addr(ptr, f(addr(ptr))) + } +} + // These test are snatched from std as well. #[cfg(test)] mod tests { -- cgit v1.2.3