mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
3abafaf219
Old versions of binutils (before 2.23) do not yet understand the
crypto-neon-fp-armv8 fpu instructions, and an attempt to build these
files results in a build failure:
arch/arm/crypto/aes-ce-core.S:133: Error: selected processor does not support ARM mode `vld1.8 {q10-q11},[ip]!'
arch/arm/crypto/aes-ce-core.S:133: Error: bad instruction `aese.8 q0,q8'
arch/arm/crypto/aes-ce-core.S:133: Error: bad instruction `aesmc.8 q0,q0'
arch/arm/crypto/aes-ce-core.S:133: Error: bad instruction `aese.8 q0,q9'
arch/arm/crypto/aes-ce-core.S:133: Error: bad instruction `aesmc.8 q0,q0'
Since the affected versions are still in widespread use, and this breaks
'allmodconfig' builds, we should try to at least get a successful kernel
build. Unfortunately, I could not come up with a way to make the Kconfig
symbol depend on the binutils version, which would be the nicest solution.
Instead, this patch uses the 'as-instr' Kbuild macro to find out whether
the support is present in the assembler, and otherwise emits a non-fatal
warning indicating which selected modules could not be built.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: http://storage.kernelci.org/next/next-20150410/arm-allmodconfig/build.log
Fixes: 864cbeed4a ("crypto: arm - add support for SHA1 using ARMv8 Crypto Instructions")
[ard.biesheuvel:
- omit modules entirely instead of building empty ones if binutils is too old
- update commit log accordingly]
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
49 lines
1.6 KiB
Makefile
49 lines
1.6 KiB
Makefile
#
|
|
# Arch-specific CryptoAPI modules.
|
|
#
|
|
|
|
obj-$(CONFIG_CRYPTO_AES_ARM) += aes-arm.o
|
|
obj-$(CONFIG_CRYPTO_AES_ARM_BS) += aes-arm-bs.o
|
|
obj-$(CONFIG_CRYPTO_SHA1_ARM) += sha1-arm.o
|
|
obj-$(CONFIG_CRYPTO_SHA1_ARM_NEON) += sha1-arm-neon.o
|
|
obj-$(CONFIG_CRYPTO_SHA256_ARM) += sha256-arm.o
|
|
obj-$(CONFIG_CRYPTO_SHA512_ARM_NEON) += sha512-arm-neon.o
|
|
|
|
ce-obj-$(CONFIG_CRYPTO_AES_ARM_CE) += aes-arm-ce.o
|
|
ce-obj-$(CONFIG_CRYPTO_SHA1_ARM_CE) += sha1-arm-ce.o
|
|
ce-obj-$(CONFIG_CRYPTO_SHA2_ARM_CE) += sha2-arm-ce.o
|
|
ce-obj-$(CONFIG_CRYPTO_GHASH_ARM_CE) += ghash-arm-ce.o
|
|
|
|
ifneq ($(ce-obj-y)$(ce-obj-m),)
|
|
ifeq ($(call as-instr,.fpu crypto-neon-fp-armv8,y,n),y)
|
|
obj-y += $(ce-obj-y)
|
|
obj-m += $(ce-obj-m)
|
|
else
|
|
$(warning These ARMv8 Crypto Extensions modules need binutils 2.23 or higher)
|
|
$(warning $(ce-obj-y) $(ce-obj-m))
|
|
endif
|
|
endif
|
|
|
|
aes-arm-y := aes-armv4.o aes_glue.o
|
|
aes-arm-bs-y := aesbs-core.o aesbs-glue.o
|
|
sha1-arm-y := sha1-armv4-large.o sha1_glue.o
|
|
sha1-arm-neon-y := sha1-armv7-neon.o sha1_neon_glue.o
|
|
sha256-arm-neon-$(CONFIG_KERNEL_MODE_NEON) := sha256_neon_glue.o
|
|
sha256-arm-y := sha256-core.o sha256_glue.o $(sha256-arm-neon-y)
|
|
sha512-arm-neon-y := sha512-armv7-neon.o sha512_neon_glue.o
|
|
sha1-arm-ce-y := sha1-ce-core.o sha1-ce-glue.o
|
|
sha2-arm-ce-y := sha2-ce-core.o sha2-ce-glue.o
|
|
aes-arm-ce-y := aes-ce-core.o aes-ce-glue.o
|
|
ghash-arm-ce-y := ghash-ce-core.o ghash-ce-glue.o
|
|
|
|
quiet_cmd_perl = PERL $@
|
|
cmd_perl = $(PERL) $(<) > $(@)
|
|
|
|
$(src)/aesbs-core.S_shipped: $(src)/bsaes-armv7.pl
|
|
$(call cmd,perl)
|
|
|
|
$(src)/sha256-core.S_shipped: $(src)/sha256-armv4.pl
|
|
$(call cmd,perl)
|
|
|
|
.PRECIOUS: $(obj)/aesbs-core.S $(obj)/sha256-core.S
|