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Add RISC-V detection macro and more architecture instructions #92574

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merged 1 commit into from
Jan 5, 2022

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luojia65
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@luojia65 luojia65 commented Jan 5, 2022

This pull request includes:

  • Update stdarch dependency to include ratified RISC-V supervisor and hypervisor instruction intrinsics which is useful in Rust kernel development
  • Add macro is_riscv_feature_detected!
  • Modify impl of core::hint::spin_loop to comply with latest version of core::arch

After this update, users may now develop RISC-V kernels and user applications more freely.

r? @Amanieu

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⚠️ Warning ⚠️

  • These commits modify submodules.

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jan 5, 2022
library/core/src/hint.rs Outdated Show resolved Hide resolved
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Update library/core/src/hint.rs

Co-authored-by: Amanieu d'Antras <[email protected]>

Remove redundant config gate
@luojia65 luojia65 force-pushed the riscv-kernel-dev-rust branch from 976628b to 06f4453 Compare January 5, 2022 07:45
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luojia65 commented Jan 5, 2022

Hello! I applied two review suggestions.

r? @Amanieu

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Amanieu commented Jan 5, 2022

@bors r+

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bors commented Jan 5, 2022

📌 Commit 06f4453 has been approved by Amanieu

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 5, 2022
bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 5, 2022
…askrgr

Rollup of 7 pull requests

Successful merges:

 - rust-lang#92092 (Drop guards in slice sorting derive src pointers from &mut T, which is invalidated by interior mutation in comparison)
 - rust-lang#92388 (Fix a minor mistake in `String::try_reserve_exact` examples)
 - rust-lang#92442 (Add negative `impl` for `Ord`, `PartialOrd` on `LocalDefId`)
 - rust-lang#92483 (Stabilize `result_cloned` and `result_copied`)
 - rust-lang#92574 (Add RISC-V detection macro and more architecture instructions)
 - rust-lang#92575 (ast: Always keep a `NodeId` in `ast::Crate`)
 - rust-lang#92583 (:arrow_up: rust-analyzer)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit c570fcb into rust-lang:master Jan 5, 2022
@rustbot rustbot added this to the 1.59.0 milestone Jan 5, 2022
@luojia65 luojia65 deleted the riscv-kernel-dev-rust branch September 9, 2022 07:44
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5 participants