--edition=$(core-edition) \
$(call cfgs-to-flags,$(core-cfgs))
+zerocopy-cfgs := \
+ no_fp_fmt_parse
+
zerocopy-flags := \
- --cap-lints=allow
+ --cap-lints=allow \
+ $(call cfgs-to-flags,$(zerocopy-cfgs))
zerocopy-envs := \
- CARGO_PKG_VERSION=0.8.50
+ CARGO_PKG_VERSION=0.8.52
proc_macro2-cfgs := \
feature="proc-macro" \
--extern quote \
$(call cfgs-to-flags,$(syn-cfgs))
+zerocopy_derive-cfgs := \
+ zerocopy_unstable_linux
+
zerocopy_derive-flags := \
--cap-lints=allow \
--extern proc_macro2 \
--extern quote \
- --extern syn
+ --extern syn \
+ $(call cfgs-to-flags,$(zerocopy_derive-cfgs))
pin_init_internal-cfgs := \
kernel USE_RUSTC_FEATURES
rust-analyzer:
$(Q)MAKEFLAGS= $(srctree)/scripts/generate_rust_analyzer.py \
--cfgs='core=$(core-cfgs)' $(core-edition) \
+ --cfgs='zerocopy=$(zerocopy-cfgs)' \
--cfgs='proc_macro2=$(proc_macro2-cfgs)' \
--cfgs='quote=$(quote-cfgs)' \
--cfgs='syn=$(syn-cfgs)' \
+ --cfgs='zerocopy_derive=$(zerocopy_derive-cfgs)' \
--cfgs='pin_init_internal=$(pin_init_internal-cfgs)' \
--cfgs='pin_init=$(pin_init-cfgs)' \
--envs='zerocopy=$(zerocopy-envs)' \
# `zerocopy-derive`
-These source files come from the Rust `zerocopy-derive` crate, version v0.8.50
-(released 2026-05-31), hosted in the <https://github.com/google/zerocopy>
+These source files come from the Rust `zerocopy-derive` crate, version v0.8.52
+(released 2026-06-09), hosted in the <https://github.com/google/zerocopy>
repository, licensed under "BSD-2-Clause OR Apache-2.0 OR MIT" and only
-modified to add the SPDX license identifiers and to remove the generation of
+modified to tweak the SPDX license identifiers and to remove the generation of
non-ASCII identifiers.
For copyright details, please see:
- https://github.com/google/zerocopy/blob/v0.8.50/README.md?plain=1
- https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-BSD
- https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-APACHE
- https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-MIT
+ https://github.com/google/zerocopy/blob/v0.8.52/README.md?plain=1
+ https://github.com/google/zerocopy/blob/v0.8.52/LICENSE-BSD
+ https://github.com/google/zerocopy/blob/v0.8.52/LICENSE-APACHE
+ https://github.com/google/zerocopy/blob/v0.8.52/LICENSE-MIT
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
use proc_macro2::{Span, TokenStream};
use syn::{
parse_quote, Data, DataEnum, DataStruct, DataUnion, Error, Expr, ExprLit, ExprUnary, Lit, UnOp,
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
use proc_macro2::{Span, TokenStream};
use quote::quote;
use syn::{Data, DataEnum, DataStruct, DataUnion, Error, Type};
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
use proc_macro2::TokenStream;
use quote::quote;
use syn::{parse_quote, Data, Error, Type};
};
let inner_extras = {
- let leading_fields_tys = leading_fields_tys.clone();
let methods = make_methods(*trailing_field_ty);
let (_, ty_generics, _) = ctx.ast.generics.split_for_impl();
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
pub mod from_bytes;
pub mod into_bytes;
pub mod known_layout;
util::{Ctx, DataExt, FieldBounds, ImplBlockBuilder, Trait},
};
-pub(crate) fn derive_immutable(ctx: &Ctx, _top_level: Trait) -> TokenStream {
- match &ctx.ast.data {
+pub(crate) fn derive_immutable(ctx: &Ctx, _top_level: Trait) -> Result<TokenStream, Error> {
+ Ok(match &ctx.ast.data {
Data::Struct(strct) => {
ImplBlockBuilder::new(ctx, strct, Trait::Immutable, FieldBounds::ALL_SELF).build()
}
Data::Union(unn) => {
ImplBlockBuilder::new(ctx, unn, Trait::Immutable, FieldBounds::ALL_SELF).build()
}
- }
+ })
}
pub(crate) fn derive_hash(ctx: &Ctx, _top_level: Trait) -> Result<TokenStream, Error> {
match &ctx.ast.data {
Data::Struct(_) => {}
Data::Enum(_) | Data::Union(_) => {
- return Err(Error::new(Span::call_site(), "can only be applied to structs"));
+ return ctx
+ .error_or_skip(Error::new(Span::call_site(), "can only be applied to structs"));
}
};
if repr.get_packed().is_some() {
- return Err(Error::new(Span::call_site(), "must not have #[repr(packed)] attribute"));
+ return ctx.error_or_skip(Error::new(
+ Span::call_site(),
+ "must not have #[repr(packed)] attribute",
+ ));
}
if !(repr.is_c() || repr.is_transparent()) {
- return Err(Error::new(
+ return ctx.error_or_skip(Error::new(
Span::call_site(),
"must have #[repr(C)] or #[repr(transparent)] in order to guarantee this type's layout is splitable",
));
let trailing_field = if let Some(((_, _, trailing_field), _)) = fields.split_last() {
trailing_field
} else {
- return Err(Error::new(Span::call_site(), "must at least one field"));
+ return ctx.error_or_skip(Error::new(Span::call_site(), "must at least one field"));
};
let zerocopy_crate = &ctx.zerocopy_crate;
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
use proc_macro2::TokenStream;
use quote::quote;
use syn::{
data,
Trait::ProjectField {
variant_id: variant_id.clone(),
- field: field.clone(),
- field_id: field_id.clone(),
+ field,
+ field_id,
invariants: parse_quote!((Aliasing, Alignment, #zerocopy_crate::invariant::Initialized)),
},
FieldBounds::None,
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
use proc_macro2::{Span, TokenStream};
use syn::{Data, DataEnum, DataStruct, DataUnion, Error};
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2019 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
derive!(ByteEq => derive_eq => crate::derive::derive_eq);
derive!(SplitAt => derive_split_at => crate::derive::derive_split_at);
+#[cfg_attr(zerocopy_unstable_linux, doc(hidden))]
+#[proc_macro_derive(most_traits, attributes(zerocopy))]
+pub fn most_traits(ts: proc_macro::TokenStream) -> proc_macro::TokenStream {
+ let ast = syn::parse_macro_input!(ts as DeriveInput);
+ let ctx = match Ctx::try_from_derive_input(ast) {
+ Ok(ctx) => ctx,
+ Err(e) => return e.into_compile_error().into(),
+ }
+ .skip_on_error();
+
+ // top-level traits for which to attempt a derive
+ let derives: [(fn(&Ctx, Trait) -> _, _); 6] = [
+ (crate::derive::known_layout::derive, Trait::KnownLayout),
+ (crate::derive::derive_immutable, Trait::Immutable),
+ (crate::derive::from_bytes::derive_from_bytes, Trait::FromBytes),
+ (crate::derive::into_bytes::derive_into_bytes, Trait::IntoBytes),
+ (crate::derive::derive_split_at, Trait::SplitAt),
+ (crate::derive::unaligned::derive_unaligned, Trait::Unaligned),
+ ];
+
+ let mut tokens = proc_macro2::TokenStream::new();
+ for (derive, t) in derives {
+ tokens.extend(derive(&ctx, t))
+ }
+
+ // We wrap in `const_block` as a backstop in case any derive fails
+ // to wrap its output in `const_block` (and thus fails to annotate)
+ // with the full set of `#[allow(...)]` attributes).
+ let ts = const_block([Some(tokens)]);
+ #[cfg(test)]
+ crate::util::testutil::check_hygiene(ts.clone());
+ ts.into()
+}
+
/// Deprecated: prefer [`FromZeros`] instead.
#[deprecated(since = "0.8.0", note = "`FromZeroes` was renamed to `FromZeros`")]
#[doc(hidden)]
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2019 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2019 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
}
}
+ pub(crate) fn skip_on_error(mut self) -> Self {
+ self.skip_on_error = true;
+ self
+ }
+
pub(crate) fn core_path(&self) -> TokenStream {
let zerocopy_crate = &self.zerocopy_crate;
quote!(#zerocopy_crate::util::macro_util::core_reexport)
pub(crate) fn cfg_compile_error(&self) -> TokenStream {
// By checking both during the compilation of the proc macro *and* in
// the generated code, we ensure that `--cfg
- // zerocopy_unstable_derive_on_error` need only be passed *either* when
+ // zerocopy_unstable_linux` need only be passed *either* when
// compiling this crate *or* when compiling the user's crate. The former
// is preferable, but in some situations (such as when cross-compiling
// using `cargo build --target`), it doesn't get propagated to this
// crate's build by default.
- if cfg!(zerocopy_unstable_derive_on_error) {
+ if cfg!(zerocopy_unstable_linux) {
quote!()
} else if let Some(span) = self.on_error_span {
let core = self.core_path();
- let error_message = "`on_error` is experimental; pass '--cfg zerocopy_unstable_derive_on_error' to enable";
+ let error_message =
+ "`on_error` is experimental; pass '--cfg zerocopy_unstable_linux' to enable";
quote::quote_spanned! {span=>
#[allow(unused_attributes, unexpected_cfgs)]
const _: () = {
- #[cfg(not(zerocopy_unstable_derive_on_error))]
+ #[cfg(not(zerocopy_unstable_linux))]
#core::compile_error!(#error_message);
};
}
}
};
+ let zerocopy_bounds =
+ field_type_bounds
+ .into_iter()
+ .chain(padding_check_bound)
+ .chain(self_bounds)
+ .map(|bound| {
+ if self.ctx.skip_on_error {
+ parse_quote!(for<'zc> #bound)
+ } else {
+ bound.clone()
+ }
+ })
+ .collect::<Vec<_>>();
+
let bounds = self
.ctx
.ast
.map(|where_clause| where_clause.predicates.iter())
.into_iter()
.flatten()
- .chain(field_type_bounds.iter())
- .chain(padding_check_bound.iter())
- .chain(self_bounds.iter());
+ .chain(zerocopy_bounds.iter());
// The parameters with trait bounds, but without type defaults.
let mut params: Vec<_> = self
# `zerocopy`
-These source files come from the Rust `zerocopy` crate, version v0.8.50
-(released 2026-05-31), hosted in the <https://github.com/google/zerocopy>
+These source files come from the Rust `zerocopy` crate, version v0.8.52
+(released 2026-06-09), hosted in the <https://github.com/google/zerocopy>
repository, licensed under "BSD-2-Clause OR Apache-2.0 OR MIT" and only
-modified to add the SPDX license identifiers and to remove `Display`
-for `f32` and `f64`.
+modified to tweak the SPDX license identifiers.
For copyright details, please see:
- https://github.com/google/zerocopy/blob/v0.8.50/README.md?plain=1
- https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-BSD
- https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-APACHE
- https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-MIT
+ https://github.com/google/zerocopy/blob/v0.8.52/README.md?plain=1
+ https://github.com/google/zerocopy/blob/v0.8.52/LICENSE-BSD
+ https://github.com/google/zerocopy/blob/v0.8.52/LICENSE-APACHE
+ https://github.com/google/zerocopy/blob/v0.8.52/LICENSE-MIT
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2019 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
/// A type alias for [`LittleEndian`].
pub type LE = LittleEndian;
+macro_rules! impl_dbg_trait {
+ ($name:ident, $native:ident) => {
+ impl<O: ByteOrder> Debug for $name<O> {
+ #[inline]
+ fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+ // This results in a format like "U16(42)".
+ f.debug_tuple(stringify!($name)).field(&self.get()).finish()
+ }
+ }
+ };
+}
+
+macro_rules! impl_dbg_traits {
+ ($name:ident, $native:ident, "floating point number") => {
+ #[cfg(not(no_fp_fmt_parse))]
+ impl_dbg_trait!($name, $native);
+
+ #[cfg(no_fp_fmt_parse)]
+ impl<O: ByteOrder> Debug for $name<O> {
+ #[inline]
+ fn fmt(&self, _f: &mut Formatter<'_>) -> fmt::Result {
+ panic!("floating point support is turned off");
+ }
+ }
+ };
+ ($name:ident, $native:ident, "unsigned integer") => {
+ impl_dbg_traits!($name, $native, @all_types);
+ };
+ ($name:ident, $native:ident, "signed integer") => {
+ impl_dbg_traits!($name, $native, @all_types);
+ };
+ ($name:ident, $native:ident, @all_types) => {
+ impl_dbg_trait!($name, $native);
+ };
+}
+
macro_rules! impl_fmt_trait {
($name:ident, $native:ident, $trait:ident) => {
impl<O: ByteOrder> $trait for $name<O> {
macro_rules! impl_fmt_traits {
($name:ident, $native:ident, "floating point number") => {
+ #[cfg(not(no_fp_fmt_parse))]
+ impl_fmt_trait!($name, $native, Display);
};
($name:ident, $native:ident, "unsigned integer") => {
impl_fmt_traits!($name, $native, @all_types);
}
}
+ impl_dbg_traits!($name, $native, $number_kind);
impl_fmt_traits!($name, $native, $number_kind);
impl_ops_traits!($name, $native, $number_kind);
-
- impl<O: ByteOrder> Debug for $name<O> {
- #[inline]
- fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
- // This results in a format like "U16(42)".
- f.debug_tuple(stringify!($name)).field(&self.get()).finish()
- }
- }
};
}
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under the 2-Clause BSD License <LICENSE-BSD or
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under the 2-Clause BSD License <LICENSE-BSD or
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under the 2-Clause BSD License <LICENSE-BSD or
#[cfg(not(no_zerocopy_aarch64_simd_1_59_0))]
simd_arch_mod!(
#[cfg(all(
- target_arch = "aarch64",
+ target_arch = "aarch64",
any(
target_endian = "little",
not(no_zerocopy_aarch64_simd_be_1_87_0)
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under the 2-Clause BSD License <LICENSE-BSD or
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2018 The Fuchsia Authors
//
// Licensed under the 2-Clause BSD License <LICENSE-BSD or
// After updating the following doc comment, make sure to run the following
// command to update `README.md` based on its contents:
//
-// cargo -q run --manifest-path tools/Cargo.toml -p generate-readme > README.md
+// (cd .. && cargo -q run --manifest-path tools/Cargo.toml -p generate-readme) > README.md
//! ***<span style="font-size: 140%">Fast, safe, <span
//! style="color:red;">compile error</span>. Pick two.</span>***
//!
//! [Miri]: https://github.com/rust-lang/miri
//! [Kani]: https://github.com/model-checking/kani
-//! [soundness policy]: https://github.com/google/zerocopy/blob/main/POLICIES.md#soundness
+//! [soundness policy]: https://github.com/google/zerocopy/blob/main/zerocopy/POLICIES.md#soundness
//!
//! # Relationship to Project Safe Transmute
//!
//!
//! See our [MSRV policy].
//!
-//! [MSRV policy]: https://github.com/google/zerocopy/blob/main/POLICIES.md#msrv
+//! [MSRV policy]: https://github.com/google/zerocopy/blob/main/zerocopy/POLICIES.md#msrv
//!
//! # Changelog
//!
WARNING
};
+#[doc(hidden)]
+#[cfg(all(any(feature = "derive", test), zerocopy_unstable_linux))]
+pub use zerocopy_derive::most_traits;
/// Implements [`KnownLayout`].
///
/// This derive analyzes various aspects of a type's layout that are needed for
/// ```
///
/// [`try_mut_from_bytes`]: TryFromBytes::try_mut_from_bytes
- ///
+ ///
#[doc = codegen_header!("h5", "try_mut_from_bytes_with_elems")]
///
/// See [`TryFromBytes::try_ref_from_bytes_with_elems`](#method.try_ref_from_bytes_with_elems.codegen).
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under the 2-Clause BSD License <LICENSE-BSD or
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2023 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2023 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2025 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2024 The Fuchsia Authors
//
// Licensed under the 2-Clause BSD License <LICENSE-BSD or
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2025 The Fuchsia Authors
//
// Licensed under the 2-Clause BSD License <LICENSE-BSD or
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2022 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2023 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2023 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
// SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT
-
+//
// Copyright 2023 The Fuchsia Authors
//
// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
projects / thirdparty / kernel / linux.git / commitdiff
