From 1cca020ec66f14c4378f0f4c64177bb49437f665 Mon Sep 17 00:00:00 2001
From: Alessandro Angelino <alessandro.angelino@arm.com>
Date: Wed, 24 Aug 2016 09:51:21 +0100
Subject: [PATCH] uVisor: Minor fix in the README

---
 features/FEATURE_UVISOR/README.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/features/FEATURE_UVISOR/README.md b/features/FEATURE_UVISOR/README.md
index 1570d871bd..88ba246e28 100644
--- a/features/FEATURE_UVISOR/README.md
+++ b/features/FEATURE_UVISOR/README.md
@@ -138,10 +138,16 @@ Before compiling, we need to override the original `K64F` target to enable the u
             "target.features_add": ["UVISOR"],
             "target.extra_labels_add": ["UVISOR_SUPPORTED"]
         }
-    }
+    },
+    "macros": [
+      "FEATURE_UVISOR",
+      "TARGET_UVISOR_SUPPORTED"
+    ]
 }
 ```
 
+The macros `FEATURE_UVISOR` and `TARGET_UVISOR_SUPPORTED` in the configuration file above are automatically defined for C and C++ files, but not for assembly files. Since the uVisor relies on those symbols in some assembly code, we need to define them manually.
+
 ---
 
 **Checkpoint**