ArmPkg/ArmLib ARM: set .fpu to let Clang 7 assemble ArmV7Support.S

Clang 7 complains about the vmsr instruction in ArmV7Support.S,
which is only available on cores that implement some flavour of
VFP. So set the .fpu to NEON like we do in some other places.

Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

diff --git a/ArmPkg/Library/ArmLib/Arm/ArmV7Support.S b/ArmPkg/Library/ArmLib/Arm/ArmV7Support.S
index 16c56f72e973e8e065ed7677e55152cc476504b8..4925f6628e1e907ed77151c075f57379d7d0fe9d 100644 (file)
--- a/ArmPkg/Library/ArmLib/Arm/ArmV7Support.S
+++ b/ArmPkg/Library/ArmLib/Arm/ArmV7Support.S
@@ -262,6 +262,8 @@ ASM_FUNC(ArmEnableVFP)
 #ifndef __clang__\r
   mcr     p10,#0x7,r0,c8,c0,#0\r
 #else\r
+  # Set the FPU model so Clang does not choke on the next instruction\r
+  .fpu    neon\r
   vmsr    fpexc, r0\r
 #endif\r
   bx      lr\r