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std: don't call current_os_id from signal handler #149456

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std: don't call current_os_id from signal handler #149456

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@joboet joboet commented Nov 29, 2025 •
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current_os_id is not always async-signal-safe depending on the platform, hence it may not be called from the SIGSEGV handler. Instead, store the thread ID along with the thread name during setup. With #144465 merged, this information is available even before the thread main function.
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rustbot commented Nov 29, 2025

r? @Mark-Simulacrum

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@rustbot rustbot added O-unix Operating system: Unix-like S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Nov 29, 2025
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Mark-Simulacrum commented Nov 30, 2025

@bors r+ rollup
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bors commented Nov 30, 2025

📌 Commit 5009847 has been approved by Mark-Simulacrum

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@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 Nov 30, 2025
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Dec 1, 2025
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Rollup merge of rust-lang#149456 - joboet:async-safe-tid, r=Mark-Simu…
b283392 
…lacrum std: don't call `current_os_id` from signal handler `current_os_id` is not always async-signal-safe depending on the platform, hence it may not be called from the SIGSEGV handler. Instead, store the thread ID along with the thread name during setup. With rust-lang#144465 merged, this information is available even before the thread main function.
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Auto merge of #149493 - matthiaskrgr:rollup-rzeivkm, r=matthiaskrgr
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Rollup of 2 pull requests Successful merges: - #149456 (std: don't call `current_os_id` from signal handler) - #149479 (Fix indent in E0591.md) r? `@ghost` `@rustbot` modify labels: rollup
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matthiaskrgr commented Dec 1, 2025

@bors r-

#149493 (comment)
@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Dec 1, 2025
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joboet commented Dec 1, 2025

@rustbot ready
@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Dec 1, 2025
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@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 Dec 2, 2025
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@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Dec 2, 2025
@joboet joboet added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Dec 2, 2025
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O-unix Operating system: Unix-like S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue.

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