1789505 - [rust 1.65] error: the type `sockaddr_un` does not permit being left uninitialized

Status: RESOLVED FIXED

(Firefox Build System :: General, defect)

Description

[Mike Hommey [:glandium]]

[task 2022-09-06T10:44:57.268Z] 10:44:57     INFO -  error: the type `sockaddr_un` does not permit being left uninitialized
[task 2022-09-06T10:44:57.269Z] 10:44:57     INFO -     --> third_party/rust/mio-0.6.23/src/sys/unix/uds.rs:55:39
[task 2022-09-06T10:44:57.269Z] 10:44:57     INFO -      |
[task 2022-09-06T10:44:57.269Z] 10:44:57     INFO -  55  |         let addr: libc::sockaddr_un = mem::uninitialized();
[task 2022-09-06T10:44:57.269Z] 10:44:57     INFO -      |                                       ^^^^^^^^^^^^^^^^^^^^
[task 2022-09-06T10:44:57.269Z] 10:44:57     INFO -      |                                       |
[task 2022-09-06T10:44:57.269Z] 10:44:57     INFO -      |                                       this code causes undefined behavior when executed
[task 2022-09-06T10:44:57.270Z] 10:44:57     INFO -      |                                       help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[task 2022-09-06T10:44:57.270Z] 10:44:57     INFO -      |
[task 2022-09-06T10:44:57.270Z] 10:44:57     INFO -      = note: `-D invalid-value` implied by `-D warnings`
[task 2022-09-06T10:44:57.270Z] 10:44:57     INFO -  note: integers must not be uninitialized (in this struct field)
[task 2022-09-06T10:44:57.270Z] 10:44:57     INFO -     --> /builds/worker/checkouts/gecko/third_party/rust/libc/src/unix/linux_like/mod.rs:228:9
[task 2022-09-06T10:44:57.270Z] 10:44:57     INFO -      |
[task 2022-09-06T10:44:57.270Z] 10:44:57     INFO -  228 |         pub sun_family: sa_family_t,
[task 2022-09-06T10:44:57.271Z] 10:44:57     INFO -      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[task 2022-09-06T10:44:57.271Z] 10:44:57     INFO -  error: could not compile `mio` due to previous error

Comment 1

[Mike Hommey [:glandium]]

Attachment: Bug 1789505 - Silence rustc 1.65 warning about mem::uninitialized.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/aa127682247c
Silence rustc 1.65 warning about mem::uninitialized. r=emilio

Comment 3

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/aa127682247c