---
tags: debugging
---

# wg-debugging 2022-11-01 meeting

## Agenda

- Next upcoming meeting: Triage meeting on Mon, November 21st, 10am ET.
- Text meeting in Zulip channel.
- Last triage meeting we covered 6 issues.
- Next status & design meeting: Mon, December 5th, 10am ET.

## Recent updates

- @pnkfelix fixed backtraces for Rust binaries loaded via ld directly
- https://github.com/rust-lang/backtrace-rs/pull/488
- Can https://github.com/rust-lang/rust/issues/101913 be closed when backtrace-rs is updated? -- (Felix says yes)

- @mw posted a PR that updates MSVC naming for slices and strs which both resolves some unintended name collisions and removes a bunch of special case MSVC-only codepaths.
- https://github.com/rust-lang/rust/pull/103691
- Related discussion in https://rust-lang.zulipchat.com/#narrow/stream/317568-t-compiler.2Fwg-debugging/topic/MSVC.20debuginfo.20change

- @wesleywiser was looking at debugging optimized code and found the following:
- MIR inlining causes incorrect line numbers for inlined code [#103068](https://github.com/rust-lang/rust/issues/103068)
- Fixed in https://github.com/rust-lang/rust/pull/103071 and beta-backported.
- MIR optimizations at mir-opt-level=2 remove some debuginfo [#103655](https://github.com/rust-lang/rust/issues/103655)
- Working on a fix in https://github.com/rust-lang/rust/pull/103657