9 files changed, 2 insertions, 3 deletions

diff --git a/asm.s b/asm.s
index 975e1ce..ed1ec3f 100644
--- a/asm.s
+++ b/asm.s
@@ -120,7 +120,6 @@ __sev:
   .thumb_func
 __udf:
   udf
-  bx lr
 
   .section .text.__wfe
   .global __wfe
diff --git a/bin/thumbv6m-none-eabi.a b/bin/thumbv6m-none-eabi.a
index 92076d7..06a7cb7 100644
--- a/bin/thumbv6m-none-eabi.a
+++ b/bin/thumbv6m-none-eabi.a
diff --git a/bin/thumbv7em-none-eabi.a b/bin/thumbv7em-none-eabi.a
index a33db85..48da24d 100644
--- a/bin/thumbv7em-none-eabi.a
+++ b/bin/thumbv7em-none-eabi.a
diff --git a/bin/thumbv7em-none-eabihf.a b/bin/thumbv7em-none-eabihf.a
index a33db85..48da24d 100644
--- a/bin/thumbv7em-none-eabihf.a
+++ b/bin/thumbv7em-none-eabihf.a
diff --git a/bin/thumbv7m-none-eabi.a b/bin/thumbv7m-none-eabi.a
index 5949e33..296f66f 100644
--- a/bin/thumbv7m-none-eabi.a
+++ b/bin/thumbv7m-none-eabi.a
diff --git a/bin/thumbv8m.base-none-eabi.a b/bin/thumbv8m.base-none-eabi.a
index 460e342..026250b 100644
--- a/bin/thumbv8m.base-none-eabi.a
+++ b/bin/thumbv8m.base-none-eabi.a
diff --git a/bin/thumbv8m.main-none-eabi.a b/bin/thumbv8m.main-none-eabi.a
index 53c510f..6848518 100644
--- a/bin/thumbv8m.main-none-eabi.a
+++ b/bin/thumbv8m.main-none-eabi.a
diff --git a/bin/thumbv8m.main-none-eabihf.a b/bin/thumbv8m.main-none-eabihf.a
index 53c510f..6848518 100644
--- a/bin/thumbv8m.main-none-eabihf.a
+++ b/bin/thumbv8m.main-none-eabihf.a
diff --git a/src/asm.rs b/src/asm.rs
index 3fe6393..03b649f 100644
--- a/src/asm.rs
+++ b/src/asm.rs
@@ -91,7 +91,7 @@ pub fn udf() -> ! {
         #[cfg(all(cortex_m, feature = "inline-asm"))]
         () => unsafe {
             asm!("udf" :::: "volatile");
-            loop { continue }
+            core::hint::unreachable_unchecked();
         },
 
         #[cfg(all(cortex_m, not(feature = "inline-asm")))]
@@ -102,7 +102,7 @@ pub fn udf() -> ! {
 
             __udf();
 
-            loop { continue }
+            core::hint::unreachable_unchecked();
         },
 
         #[cfg(not(cortex_m))]