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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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6aaf49b495
The decision to rebuild .S_shipped is made based on the relative timestamps of .S_shipped and .pl files but git makes this essentially random. This means that the perl script might run anyway (usually at most once per checkout), defeating the whole purpose of _shipped. Fix by skipping the rule unless explicit make variables are provided: REGENERATE_ARM_CRYPTO or REGENERATE_ARM64_CRYPTO. This can produce nasty occasional build failures downstream, for example for toolchains with broken perl. The solution is minimally intrusive to make it easier to push into stable. Another report on a similar issue here: https://lkml.org/lkml/2018/3/8/1379 Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Cc: <stable@vger.kernel.org> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
70 lines
2.4 KiB
Makefile
70 lines
2.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Arch-specific CryptoAPI modules.
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#
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obj-$(CONFIG_CRYPTO_AES_ARM) += aes-arm.o
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obj-$(CONFIG_CRYPTO_AES_ARM_BS) += aes-arm-bs.o
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obj-$(CONFIG_CRYPTO_SHA1_ARM) += sha1-arm.o
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obj-$(CONFIG_CRYPTO_SHA1_ARM_NEON) += sha1-arm-neon.o
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obj-$(CONFIG_CRYPTO_SHA256_ARM) += sha256-arm.o
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obj-$(CONFIG_CRYPTO_SHA512_ARM) += sha512-arm.o
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obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha20-neon.o
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obj-$(CONFIG_CRYPTO_SPECK_NEON) += speck-neon.o
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ce-obj-$(CONFIG_CRYPTO_AES_ARM_CE) += aes-arm-ce.o
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ce-obj-$(CONFIG_CRYPTO_SHA1_ARM_CE) += sha1-arm-ce.o
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ce-obj-$(CONFIG_CRYPTO_SHA2_ARM_CE) += sha2-arm-ce.o
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ce-obj-$(CONFIG_CRYPTO_GHASH_ARM_CE) += ghash-arm-ce.o
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ce-obj-$(CONFIG_CRYPTO_CRCT10DIF_ARM_CE) += crct10dif-arm-ce.o
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crc-obj-$(CONFIG_CRYPTO_CRC32_ARM_CE) += crc32-arm-ce.o
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ifneq ($(crc-obj-y)$(crc-obj-m),)
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ifeq ($(call as-instr,.arch armv8-a\n.arch_extension crc,y,n),y)
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ce-obj-y += $(crc-obj-y)
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ce-obj-m += $(crc-obj-m)
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else
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$(warning These CRC Extensions modules need binutils 2.23 or higher)
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$(warning $(crc-obj-y) $(crc-obj-m))
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endif
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endif
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ifneq ($(ce-obj-y)$(ce-obj-m),)
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ifeq ($(call as-instr,.fpu crypto-neon-fp-armv8,y,n),y)
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obj-y += $(ce-obj-y)
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obj-m += $(ce-obj-m)
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else
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$(warning These ARMv8 Crypto Extensions modules need binutils 2.23 or higher)
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$(warning $(ce-obj-y) $(ce-obj-m))
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endif
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endif
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aes-arm-y := aes-cipher-core.o aes-cipher-glue.o
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aes-arm-bs-y := aes-neonbs-core.o aes-neonbs-glue.o
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sha1-arm-y := sha1-armv4-large.o sha1_glue.o
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sha1-arm-neon-y := sha1-armv7-neon.o sha1_neon_glue.o
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sha256-arm-neon-$(CONFIG_KERNEL_MODE_NEON) := sha256_neon_glue.o
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sha256-arm-y := sha256-core.o sha256_glue.o $(sha256-arm-neon-y)
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sha512-arm-neon-$(CONFIG_KERNEL_MODE_NEON) := sha512-neon-glue.o
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sha512-arm-y := sha512-core.o sha512-glue.o $(sha512-arm-neon-y)
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sha1-arm-ce-y := sha1-ce-core.o sha1-ce-glue.o
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sha2-arm-ce-y := sha2-ce-core.o sha2-ce-glue.o
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aes-arm-ce-y := aes-ce-core.o aes-ce-glue.o
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ghash-arm-ce-y := ghash-ce-core.o ghash-ce-glue.o
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crct10dif-arm-ce-y := crct10dif-ce-core.o crct10dif-ce-glue.o
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crc32-arm-ce-y:= crc32-ce-core.o crc32-ce-glue.o
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chacha20-neon-y := chacha20-neon-core.o chacha20-neon-glue.o
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speck-neon-y := speck-neon-core.o speck-neon-glue.o
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ifdef REGENERATE_ARM_CRYPTO
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quiet_cmd_perl = PERL $@
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cmd_perl = $(PERL) $(<) > $(@)
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$(src)/sha256-core.S_shipped: $(src)/sha256-armv4.pl
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$(call cmd,perl)
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$(src)/sha512-core.S_shipped: $(src)/sha512-armv4.pl
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$(call cmd,perl)
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endif
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.PRECIOUS: $(obj)/sha256-core.S $(obj)/sha512-core.S
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