diff options
| -rw-r--r-- | ArmPkg/Drivers/ArmGic/GicV3/AArch64/ArmGicV3.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/ArmPkg/Drivers/ArmGic/GicV3/AArch64/ArmGicV3.S b/ArmPkg/Drivers/ArmGic/GicV3/AArch64/ArmGicV3.S index c30ae76d94..f1c227f2c4 100644 --- a/ArmPkg/Drivers/ArmGic/GicV3/AArch64/ArmGicV3.S +++ b/ArmPkg/Drivers/ArmGic/GicV3/AArch64/ArmGicV3.S @@ -13,6 +13,14 @@ #include <AsmMacroIoLibV8.h>
+#if !defined(__clang__)
+
+//
+// Clang versions before v3.6 do not support the GNU extension that allows
+// system registers outside of the IMPLEMENTATION DEFINED range to be specified
+// using the generic notation below. However, clang knows these registers by
+// their architectural names, so it has no need for these aliases anyway.
+//
#define ICC_SRE_EL1 S3_0_C12_C12_5
#define ICC_SRE_EL2 S3_4_C12_C9_5
#define ICC_SRE_EL3 S3_6_C12_C12_5
@@ -22,6 +30,8 @@ #define ICC_PMR_EL1 S3_0_C4_C6_0
#define ICC_BPR1_EL1 S3_0_C12_C12_3
+#endif
+
.text
.align 2
|