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VxWorks: updates from recent libc versions #140990

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Merged
merged 2 commits into from
May 16, 2025
Merged

VxWorks: updates from recent libc versions #140990

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e1f1878
Fix set_name for vxworks. Length of name should be truncated to VX_TA…
biabbas May 14, 2025
544c8ce
Fix settimes for vxworks
biabbas May 14, 2025
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3 changes: 1 addition & 2 deletions library/std/src/sys/fs/unix.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1498,11 +1498,10 @@ impl File {
None => Ok(libc::timespec { tv_sec: 0, tv_nsec: libc::UTIME_OMIT as _ }),
};
cfg_if::cfg_if! {
if #[cfg(any(target_os = "redox", target_os = "espidf", target_os = "horizon", target_os = "vxworks", target_os = "nuttx"))] {
if #[cfg(any(target_os = "redox", target_os = "espidf", target_os = "horizon", target_os = "nuttx"))] {
// Redox doesn't appear to support `UTIME_OMIT`.
// ESP-IDF and HorizonOS do not support `futimens` at all and the behavior for those OS is therefore
// the same as for Redox.
// `futimens` and `UTIME_OMIT` are a work in progress for vxworks.
let _ = times;
Err(io::const_error!(
io::ErrorKind::Unsupported,
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12 changes: 2 additions & 10 deletions library/std/src/sys/pal/unix/thread.rs
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Expand Up @@ -222,16 +222,8 @@ impl Thread {

#[cfg(target_os = "vxworks")]
pub fn set_name(name: &CStr) {
// FIXME(libc): adding real STATUS, ERROR type eventually.
unsafe extern "C" {
fn taskNameSet(task_id: libc::TASK_ID, task_name: *mut libc::c_char) -> libc::c_int;
}

// VX_TASK_NAME_LEN is 31 in VxWorks 7.
const VX_TASK_NAME_LEN: usize = 31;

let mut name = truncate_cstr::<{ VX_TASK_NAME_LEN }>(name);
let res = unsafe { taskNameSet(libc::taskIdSelf(), name.as_mut_ptr()) };
let mut name = truncate_cstr::<{ libc::VX_TASK_RENAME_LENGTH - 1 }>(name);
let res = unsafe { libc::taskNameSet(libc::taskIdSelf(), name.as_mut_ptr()) };
debug_assert_eq!(res, libc::OK);
}

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