nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2025-05-14 02:49:40 +00:00
Code Issues Packages Projects Releases Wiki Activity
f49ad60fee
rust/compiler/rustc_target
History
León Orell Valerian Liehr 0b1d717758
Rollup merge of #136170 - taiki-e:atomics-32, r=workingjubilee 
Reject unsound toggling of Arm atomics-32 target feature

This target feature has the same semantics as RISC-V `forced-atomics` target feature that already marked as Forbidden  (f5ed0cb217) and toggling it can cause ABI incompatibility.

2f348cb7ce/compiler/rustc_target/src/target_features.rs (L479-L483)

[Comment on feature definition in LLVM](7109f52197/llvm/lib/Target/ARM/ARMFeatures.td (L572-L574)) also says:

> Code built with this feature is not ABI-compatible with code built without this feature, if atomic variables are exposed across the ABI boundary.

r? `@workingjubilee` or `@RalfJung`

`@rustbot` label +O-Arm
2025-01-29 06:03:24 +01:00
..
src Rollup merge of #136170 - taiki-e:atomics-32, r=workingjubilee 2025-01-29 06:03:24 +01:00
Cargo.toml Remove unused intercrate dependencies 2024-11-07 14:17:16 +00:00
README.md Fix outdated crate names in compiler docs 2021-04-08 11:12:14 -05:00

README.md

rustc_target contains some very low-level details that are specific to different compilation targets and so forth.

For more information about how rustc works, see the rustc dev guide.