path: root/crypto/Makefile
diff options
authorArd Biesheuvel <>2019-09-13 19:36:18 +0100
committerHerbert Xu <>2019-10-05 01:06:06 +1000
commit2eb2d198bd6cd0083a5363ce66272fb34a19928f (patch)
treedf53bdc99f14cc69a6694a60af0172d4f1a28414 /crypto/Makefile
parente48862147f22d48ca8b6c05d4d354b9a7f4ba3ff (diff)
crypto: aegis128-neon - use Clang compatible cflags for ARM
The next version of Clang will start policing compiler command line options, and will reject combinations of -march and -mfpu that it thinks are incompatible. This results in errors like clang-10: warning: ignoring extension 'crypto' because the 'armv7-a' architecture does not support it [-Winvalid-command-line-argument] /tmp/aegis128-neon-inner-5ee428.s: Assembler messages: /tmp/aegis128-neon-inner-5ee428.s:73: Error: selected processor does not support `aese.8 q2,q14' in ARM mode when buiding the SIMD aegis128 code for 32-bit ARM, given that the 'armv7-a' -march argument is considered to be compatible with the ARM crypto extensions. Instead, we should use armv8-a, which does allow the crypto extensions to be enabled. Signed-off-by: Ard Biesheuvel <> Signed-off-by: Herbert Xu <>
Diffstat (limited to 'crypto/Makefile')
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/Makefile b/crypto/Makefile
index fcb1ee679782..aa740c8492b9 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -93,7 +93,7 @@ obj-$(CONFIG_CRYPTO_AEGIS128) += aegis128.o
aegis128-y := aegis128-core.o
ifeq ($(ARCH),arm)
-CFLAGS_aegis128-neon-inner.o += -ffreestanding -march=armv7-a -mfloat-abi=softfp
+CFLAGS_aegis128-neon-inner.o += -ffreestanding -march=armv8-a -mfloat-abi=softfp
CFLAGS_aegis128-neon-inner.o += -mfpu=crypto-neon-fp-armv8
aegis128-$(CONFIG_CRYPTO_AEGIS128_SIMD) += aegis128-neon.o aegis128-neon-inner.o