rust-lang / rust-lang/rust

Rustc reports error on Ctrl-C during linking

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A-linkage C-bug T-compiler
Dominant language
Rust
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Description

^C
gh-bjorn3@dev-desktop-eu-1:~/cg_clif$ error: linking with `cc` failed: signal: 2 (SIGINT)
  |
  = note: LC_ALL="C" PATH="/home/gh-bjorn3/cg_clif/dist/lib/rustlib/aarch64-unknown-linux-gnu/bin:/home/gh-bjorn3/.local/bin:/home/gh-bjorn3/.cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" VSLANG="1033" "cc" "/tmp/rustc3QDuN1/symbols.o" [...]
  = note: 

error: aborting due to 1 previous error

Rustc should probably check if it received SIGINT itself and if so ignore child processes exiting with SIGINT.

This is almost certainly a regression from https://github.com/rust-lang/rust/pull/111769

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Review the regression referenced in Rust pull request #111769, then reproduce the Ctrl-C interruption during linking described in the report. Trace how rustc handles its own SIGINT and the linker’s exit status; done means interrupting a link no longer produces the reported linker error.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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