From 9d0fbc5f467cbb27e989c7ea019693bc92b3a7cd Mon Sep 17 00:00:00 2001
From: Zhiwei Liang <zhiwei.liang@zliang.me>
Date: Mon, 21 Sep 2026 22:53:05 -0400
Subject: [PATCH] cksum: only report x86 hardware features on x86 targets

Signed-off-by: Zhiwei Liang <zhiwei.liang@zliang.me>
---
 src/uu/cksum/src/cksum.rs   |  8 +++++---
 tests/by-util/test_cksum.rs | 27 +++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/src/uu/cksum/src/cksum.rs b/src/uu/cksum/src/cksum.rs
index 5f567cc51c1..183687ac83e 100644
--- a/src/uu/cksum/src/cksum.rs
+++ b/src/uu/cksum/src/cksum.rs
@@ -34,9 +34,11 @@ fn print_cpu_debug_info() {
     let features = SimdPolicy::detect();
 
     // x86/x86_64
-    print_feature("avx512", features.has_avx512());
-    print_feature("avx2", features.has_avx2());
-    print_feature("pclmul", features.has_pclmul());
+    if cfg!(any(target_arch = "x86", target_arch = "x86_64")) {
+        print_feature("avx512", features.has_avx512());
+        print_feature("avx2", features.has_avx2());
+        print_feature("pclmul", features.has_pclmul());
+    }
 
     // ARM aarch64
     if cfg!(target_arch = "aarch64") {
diff --git a/tests/by-util/test_cksum.rs b/tests/by-util/test_cksum.rs
index 39617aa6b5a..1178a58a5a0 100644
--- a/tests/by-util/test_cksum.rs
+++ b/tests/by-util/test_cksum.rs
@@ -3065,6 +3065,7 @@ mod debug_flag {
     use super::*;
 
     #[test]
+    #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
     fn test_debug_flag() {
         // Test with default CRC algorithm - should output CPU feature detection
         new_ucmd!()
@@ -3121,6 +3122,7 @@ mod debug_flag {
     }
 
     #[test]
+    #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
     fn test_debug_with_algorithms() {
         // Test with SHA256 - CPU detection should be same regardless of algorithm
         new_ucmd!()
@@ -3168,6 +3170,31 @@ mod debug_flag {
             .stderr_contains("avx2")
             .stderr_contains("pclmul");
     }
+
+    #[test]
+    #[cfg(target_arch = "aarch64")]
+    fn test_debug_flag_aarch64() {
+        new_ucmd!()
+            .arg("--debug")
+            .arg("lorem_ipsum.txt")
+            .succeeds()
+            .stdout_is_fixture("crc_single_file.expected")
+            .stderr_str_check(|stderr| {
+                stderr == "using vmull hardware support\n"
+                    || stderr == "vmull support not detected\n"
+            });
+    }
+
+    #[test]
+    #[cfg(not(any(target_arch = "x86", target_arch = "x86_64", target_arch = "aarch64")))]
+    fn test_debug_flag_no_hardware_features() {
+        new_ucmd!()
+            .arg("--debug")
+            .arg("lorem_ipsum.txt")
+            .succeeds()
+            .stdout_is_fixture("crc_single_file.expected")
+            .no_stderr();
+    }
 }
 
 #[test]