Merge cortex-m-rt repository into cortex-m.

1 files changed, 29 insertions, 0 deletions

diff --git a/cortex-m-rt/tests/compile-fail/exception-soundness.rs b/cortex-m-rt/tests/compile-fail/exception-soundness.rs
new file mode 100644
index 0000000..9a1e10b
--- /dev/null
+++ b/cortex-m-rt/tests/compile-fail/exception-soundness.rs
@@ -0,0 +1,29 @@
+#![no_main]
+#![no_std]
+
+extern crate cortex_m_rt;
+extern crate panic_halt;
+
+use cortex_m_rt::{entry, exception};
+
+#[entry]
+fn foo() -> ! {
+    loop {}
+}
+
+#[exception]
+fn SysTick() {
+    static mut COUNT: u64 = 0;
+
+    if *COUNT % 2 == 0 {
+        *COUNT += 1;
+    } else {
+        *COUNT *= 2;
+    }
+}
+
+#[exception]
+fn SVCall() {
+    // If this was allowed it would lead to a data race as `SVCall` could preempt `SysTick`
+    SysTick(); //~ ERROR cannot find function, tuple struct or tuple variant `SysTick` in this scope [E0425]
+}