1 files changed, 13 insertions, 0 deletions
diff --git a/cortex-m-rt/tests/compile-fail/entry-bad-signature-3.rs b/cortex-m-rt/tests/compile-fail/entry-bad-signature-3.rs
new file mode 100644
index 0000000..048b0e6
--- /dev/null
+++ b/cortex-m-rt/tests/compile-fail/entry-bad-signature-3.rs
@@ -0,0 +1,13 @@
+#![no_main]
+#![no_std]
+
+extern crate cortex_m_rt;
+extern crate panic_halt;
+
+use cortex_m_rt::entry;
+
+#[entry]
+extern "C" fn foo() -> ! {
+    //~^ ERROR `#[entry]` function must have signature `[unsafe] fn() -> !`
+    loop {}
+}