Rollup merge of #130875 - folkertdev:naked-asm-bootstrap, r=tgross35 · qinheping/verify-rust-std@fdf84bf (original) (raw)
`@@ -3,6 +3,9 @@
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`#[allow(unused_imports)]
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`#[stable(feature = "simd_arch", since = "1.27.0")]
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`pub use crate::core_arch::arch::*;
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#[unstable(feature = "naked_functions", issue = "90957")]
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#[cfg(bootstrap)]
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pub use crate::naked_asm;
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``
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`/// Inline assembly.
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`///
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`@@ -17,6 +20,37 @@ pub macro asm("assembly template", (operands,)∗(operands,)* (operands,)∗(options($(option),*))?) {
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`/* compiler built-in */
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`}
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``
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/// Inline assembly used in combination with #[naked] functions.
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///
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/// Refer to [Rust By Example] for a usage guide and the [reference] for
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/// detailed information about the syntax and available options.
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///
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/// [Rust By Example]: https://doc.rust-lang.org/nightly/rust-by-example/unsafe/asm.html
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/// [reference]: https://doc.rust-lang.org/nightly/reference/inline-assembly.html
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#[unstable(feature = "naked_functions", issue = "90957")]
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#[macro_export]
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#[cfg(bootstrap)]
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macro_rules! naked_asm {
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([$last:expr], [$($pushed:expr),*]) => {
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#[cfg(any(target_arch = "x86_64", target_arch = "x86"))]
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{
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core::arch::asm!($($pushed),*, options(att_syntax, noreturn))
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}
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#[cfg(not(any(target_arch = "x86_64", target_arch = "x86")))]
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{
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core::arch::asm!($($pushed),* , $last, options(noreturn))
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}
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};
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([$first:expr (,(, (,rest:expr)], [$($pushed:expr),]) => {
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naked_asm!([$($rest),], [$($pushed,) $first]);
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};
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($($expr:expr),* $(,)?) => {
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naked_asm!([$($expr),*], []);
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};
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}
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`` /// Inline assembly used in combination with #[naked] functions.
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`///
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`/// Refer to [Rust By Example] for a usage guide and the [reference] for
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