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 <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -93,7 +93,7 @@ obj-$(CONFIG_CRYPTO_AEGIS128) += aegis128.o
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aegis128-y := aegis128-core.o
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ifeq ($(ARCH),arm)
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CFLAGS_aegis128-neon-inner.o += -ffreestanding -march=armv7-a -mfloat-abi=softfp
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CFLAGS_aegis128-neon-inner.o += -ffreestanding -march=armv8-a -mfloat-abi=softfp
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CFLAGS_aegis128-neon-inner.o += -mfpu=crypto-neon-fp-armv8
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aegis128-$(CONFIG_CRYPTO_AEGIS128_SIMD) += aegis128-neon.o aegis128-neon-inner.o
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endif
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