From d54f8bb52f9d4f38544d448713f047a63ce5fb9c Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge@japaric.io>
Date: Tue, 24 Apr 2018 20:51:10 +0200
Subject: add macro to bind all interrupts to DefaultHandler

---
 cortex-m-rt/src/lib.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'cortex-m-rt/src')

diff --git a/cortex-m-rt/src/lib.rs b/cortex-m-rt/src/lib.rs
index d4486e1..e0ddb76 100644
--- a/cortex-m-rt/src/lib.rs
+++ b/cortex-m-rt/src/lib.rs
@@ -215,3 +215,22 @@ macro_rules! exception {
         }
     };
 }
+
+/// Macro to bind all the 240 interrupt handlers to the `DefaultHandler` exception handler.
+///
+/// The use case for this macro is writing device agnostic programs
+#[macro_export]
+macro_rules! interrupts {
+    (DefaultHandler) => {
+        #[doc(hidden)]
+        #[link_section = ".vector_table.interrupts"]
+        #[no_mangle]
+        pub static __INTERRUPTS: [Option<unsafe extern "C" fn()>; 240] = [{
+            extern "C" {
+                fn DefaultHandler();
+            }
+
+            Some(DefaultHandler)
+        }; 240];
+    };
+}
-- 
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