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fix(std): avoid AT_MINSIGSTKSZ on uclibc targets #154732

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Merged
rust-bors merged 1 commit into from
Apr 3, 2026
+2 −2
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fix(std): avoid AT_MINSIGSTKSZ on uclibc targets #154732

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4 changes: 2 additions & 2 deletions library/std/src/sys/pal/unix/stack_overflow.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -305,7 +305,7 @@ mod imp {
}

/// Modern kernels on modern hardware can have dynamic signal stack sizes.
#[cfg(any(target_os = "linux", target_os = "android"))]
#[cfg(all(any(target_os = "linux", target_os = "android"), not(target_env = "uclibc")))]
fn sigstack_size() -> usize {
let dynamic_sigstksz = unsafe { libc::getauxval(libc::AT_MINSIGSTKSZ) };
// If getauxval couldn't find the entry, it returns 0,
Expand All @@ -315,7 +315,7 @@ mod imp {
}

/// Not all OS support hardware where this is needed.
#[cfg(not(any(target_os = "linux", target_os = "android")))]
#[cfg(not(all(any(target_os = "linux", target_os = "android"), not(target_env = "uclibc"))))]
fn sigstack_size() -> usize {
libc::SIGSTKSZ
}
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