diff options
| -rw-r--r-- | library/std/src/sys/pal/unix/thread.rs | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/library/std/src/sys/pal/unix/thread.rs b/library/std/src/sys/pal/unix/thread.rs index 853ef8736de..1ab54ec57c3 100644 --- a/library/std/src/sys/pal/unix/thread.rs +++ b/library/std/src/sys/pal/unix/thread.rs @@ -717,5 +717,14 @@ unsafe fn min_stack_size(_: *const libc::pthread_attr_t) -> usize { #[cfg(target_os = "netbsd")] unsafe fn min_stack_size(_: *const libc::pthread_attr_t) -> usize { - 2048 // just a guess + static STACK: crate::sync::OnceLock<usize> = crate::sync::OnceLock::new(); + + *STACK.get_or_init(|| { + let mut stack = unsafe { libc::sysconf(libc::_SC_THREAD_STACK_MIN) }; + if stack < 0 { + stack = 2048; // just a guess + } + + stack as usize + }) } |