1 files changed, 21 insertions, 0 deletions
diff --git a/library/stdarch/crates/std_detect/src/detect/os/freebsd/arm.rs b/library/stdarch/crates/std_detect/src/detect/os/freebsd/arm.rs
new file mode 100644
index 000000000..4c9d763b4
--- /dev/null
+++ b/library/stdarch/crates/std_detect/src/detect/os/freebsd/arm.rs
@@ -0,0 +1,21 @@
+//! Run-time feature detection for ARM on FreeBSD
+
+use super::auxvec;
+use crate::detect::{cache, Feature};
+
+/// Try to read the features from the auxiliary vector
+pub(crate) fn detect_features() -> cache::Initializer {
+    let mut value = cache::Initializer::default();
+    let enable_feature = |value: &mut cache::Initializer, f, enable| {
+        if enable {
+            value.set(f as u32);
+        }
+    };
+
+    if let Ok(auxv) = auxvec::auxv() {
+        enable_feature(&mut value, Feature::neon, auxv.hwcap & 0x00001000 != 0);
+        enable_feature(&mut value, Feature::pmull, auxv.hwcap2 & 0x00000002 != 0);
+        return value;
+    }
+    value
+}