std::unix::stack_overflow::drop_handler addressing todo through libc …

…update
rust-lang · Jun 9, 2024 · e5b56ed · e5b56ed
1 parent 65d1a73
commit e5b56ed
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Showing 2 changed files with 2 additions and 4 deletions.
diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml
@@ -31,7 +31,7 @@ miniz_oxide = { version = "0.7.0", optional = true, default-features = false }
 addr2line = { version = "0.22.0", optional = true, default-features = false }
 
 [target.'cfg(not(all(windows, target_env = "msvc")))'.dependencies]
-libc = { version = "0.2.153", default-features = false, features = ['rustc-dep-of-std'], public = true }
+libc = { version = "0.2.155", default-features = false, features = ['rustc-dep-of-std'], public = true }
 
 [target.'cfg(all(not(target_os = "aix"), not(all(windows, target_env = "msvc", not(target_vendor = "uwp")))))'.dependencies]
 object = { version = "0.36.0", default-features = false, optional = true, features = ['read_core', 'elf', 'macho', 'pe', 'unaligned', 'archive'] }

diff --git a/library/std/src/sys/pal/unix/stack_overflow.rs b/library/std/src/sys/pal/unix/stack_overflow.rs
@@ -232,9 +232,7 @@ mod imp {
     /// Modern kernels on modern hardware can have dynamic signal stack sizes.
     #[cfg(any(target_os = "linux", target_os = "android"))]
     fn sigstack_size() -> usize {
-        // FIXME: reuse const from libc when available?
-        const AT_MINSIGSTKSZ: crate::ffi::c_ulong = 51;
-        let dynamic_sigstksz = unsafe { libc::getauxval(AT_MINSIGSTKSZ) };
+        let dynamic_sigstksz = unsafe { libc::getauxval(libc::AT_MINSIGSTKSZ) };
         // If getauxval couldn't find the entry, it returns 0,
         // so take the higher of the "constant" and auxval.
         // This transparently supports older kernels which don't provide AT_MINSIGSTKSZ