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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-09-13 19:36:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-31 16:43:38 +0100 |
| commit | de5d03f64048e98427ad1d1f45622434f7b9acc3 (patch) | |
| tree | c43e4b4e8bc1252972d9baea11eebfc34794c8c6 /crypto/Makefile | |
| parent | c9b5983b02ae5923b68b8ea11f358a1158b06009 (diff) | |
crypto: aegis128-neon - use Clang compatible cflags for ARM
[ Upstream commit 2eb2d198bd6cd0083a5363ce66272fb34a19928f ]
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 <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'crypto/Makefile')
| -rw-r--r-- | crypto/Makefile | 2 |
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 endif |