rust-lang / rust-lang/rust

Tracking Issue for ARM barrier intrinsics

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#117,219 1 comment 0 reactions 0 assignees View on GitHub

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C-tracking-issue O-AArch64 O-Arm T-libs
Dominant language
Rust
Stars
119k
Forks
16.1k
PR merge metrics
PR metrics pending

Description

Feature gate: #![feature(stdarch_arm_barrier)]

This is a tracking issue for ARM and AArch64 barrier intrinsics.

Public API
// core::arch::{arm,aarch64}

pub unsafe fn __dmb<A>(arg: A);
pub unsafe fn __dsb<A>(arg: A);
pub unsafe fn __isb<A>(arg: A);

pub struct SY;
pub struct ST;
pub struct ISH;
pub struct ISHST;
pub struct NSH;
pub struct NSHST;
pub struct OSH;
pub struct OSHST;
pub struct LD;
pub struct ISHLD;
pub struct NSHLD;
pub struct OSHLD;
Steps / History
  • Implementation: #...
  • Final comment period (FCP)^1
  • Stabilization PR
Unresolved Questions
  • None yet.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the stdarch_arm_barrier feature gate and the core::arch::{arm,aarch64} public API listed in the issue, then read the linked stabilization guide. Completion requires an implementation, a final comment period, and a stabilization PR; no implementation PR or file path is identified here.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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