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Merged
merged 8 commits into from
Aug 5, 2025
Merged

July goals update #1667

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2c1c105
Initial July 2025 goals import
tomassedovic Jul 30, 2025
f400c6f
Highlight final updates
tomassedovic Jul 30, 2025
258cf3c
Small text fixes and making URLs clickable
tomassedovic Jul 31, 2025
210d3fa
Address comments by @ojeda
tomassedovic Aug 1, 2025
1ea11b7
Remove "No detailed updates available" section
tomassedovic Aug 4, 2025
b77dbbf
Clarify the retpoline section
tomassedovic Aug 5, 2025
b4e4841
Further clarify the `-Zindirect-branch-cs-prefix` MCP request
tomassedovic Aug 5, 2025
744160e
Revise editorially
traviscross Aug 5, 2025
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10 changes: 6 additions & 4 deletions content/Project-Goals-2025-July-Update.md
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Expand Up @@ -170,17 +170,19 @@ Ding is working on an experimental implementation ([PR#143527](https://github.co

## Queries on GCC-style inline assembly statements:

Ding opened a PR to Clang (a C frontend for LLVM): https://github.com/llvm/llvm-project/pull/143424 and got it merged.
Ding opened a PR to Clang (a C frontend for LLVM): <https://github.com/llvm/llvm-project/pull/143424> and got it merged.

This is part of the LLVM/Clang issues the Rust for Linux project needs: https://github.com/Rust-for-Linux/linux/issues/1132.
This is part of the LLVM/Clang issues the Rust for Linux project needs: <https://github.com/Rust-for-Linux/linux/issues/1132>.

## `-Zindirect-branch-cs-prefix`:

We've discussed whether this needs to be a separate target feature vs. a modifier on the existing `retpoline` one. Josh argued that since having this enabled without retpoline doesn't make sense, it should be a modifier. On the other hand, Miguel mentioned that it would be clearer on the user's side (easier to map the names from GCC and Clang to `rustc` when they're the same and see that we're enabling the same thing in Rust and Linux kernel's `Makefiles`).

Ultimately, this is a compiler question and should be resolved here: https://github.com/rust-lang/rust/pull/140740
It seems that `-Cmin-function-alignment` will be another similar case.

The team was asked to submit an [MCP (Major Change Proposal)](https://forge.rust-lang.org/compiler/proposals-and-stabilization.html#how-do-i-submit-an-mcp) for `-Cmin-function-alignment` will be another similar case. @ojeda opened it here: <https://github.com/rust-lang/compiler-team/issues/899>, @davidtwco seconded it and it's in the Final Comment Period (FCP) now.
Ultimately, this is a compiler question and should be resolved here: <https://github.com/rust-lang/rust/pull/140740>

The team was asked to submit an [MCP (Major Change Proposal)](https://forge.rust-lang.org/compiler/proposals-and-stabilization.html#how-do-i-submit-an-mcp) for `-Zindirect-branch-cs-prefix`. @ojeda opened it here: <https://github.com/rust-lang/compiler-team/issues/899> and it's now been accepted.

## Stabilizing `AddressSanitizer` and `LeakSanitizer`:

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