d8dc5315eb
wolfssl contains some assembly code and its configure.ac script enables the assembly code depending on the CPU architecture. However, the detection logic is not sufficient and leads to using the assembly code in situation where it should not. Here are two examples: - As soon as the architecture is mips64/mips64el, it uses assembly code, but that assembly code is not mips64r6 compatible. - As soon as the architecture is RISC-V, it uses assembly code, but that assembly code uses multiplication instructions, without paying attention that the "M" extension may not be available in the RISC-V CPU instruction set. In order to avoid this, we introduce a BR2_PACKAGE_WOLFSSL_ASM_SUPPORTS hidden boolean to decide when to enable/disable assembly code. We set an initial value with the supported CPU architectures, with the exclusion of the problematic cases described above. It is pretty likely that this variable will need tuning progressively, as it is difficult to determine which CPU variants exactly are supported by the assembly code in wolfssl. Fixes: - MIPS64 case: http://autobuild.buildroot.net/results/43e/43ee1a457cbeb986d958c9a70cac0676377661c0/ - RISC-V case: http://autobuild.buildroot.net/results/f05/f056ebe7749a69994afba39a9d4967e2774c45ea/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
57 lines
1.5 KiB
Makefile
57 lines
1.5 KiB
Makefile
################################################################################
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#
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# wolfssl
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#
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################################################################################
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WOLFSSL_VERSION = 5.5.3
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WOLFSSL_SITE = $(call github,wolfSSL,wolfssl,v$(WOLFSSL_VERSION)-stable)
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WOLFSSL_INSTALL_STAGING = YES
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WOLFSSL_LICENSE = GPL-2.0+
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WOLFSSL_LICENSE_FILES = COPYING LICENSING
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WOLFSSL_CPE_ID_VENDOR = wolfssl
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WOLFSSL_CONFIG_SCRIPTS = wolfssl-config
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WOLFSSL_DEPENDENCIES = host-pkgconf
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# wolfssl's source code is released without a configure
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# script, so we need autoreconf
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WOLFSSL_AUTORECONF = YES
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WOLFSSL_CONF_OPTS = --disable-examples --disable-crypttests
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ifeq ($(BR2_PACKAGE_WOLFSSL_ALL),y)
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WOLFSSL_CONF_OPTS += --enable-all
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else
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WOLFSSL_CONF_OPTS += --disable-all
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endif
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ifeq ($(BR2_PACKAGE_WOLFSSL_SSLV3),y)
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WOLFSSL_CONF_OPTS += --enable-sslv3
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else
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WOLFSSL_CONF_OPTS += --disable-sslv3
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endif
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ifeq ($(BR2_PACKAGE_WOLFSSL_ASM_SUPPORTS),y)
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WOLFSSL_CONF_OPTS += --enable-asm
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else
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WOLFSSL_CONF_OPTS += --disable-asm
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endif
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# enable ARMv8 hardware acceleration
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ifeq ($(BR2_aarch64),y)
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WOLFSSL_CONF_OPTS += --enable-armasm
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# the flag -mstrict-align is needed to prevent build errors caused by
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# some inline assembly in parts of the AES structure using the "m"
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# constraint
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WOLFSSL_CONF_ENV += CPPFLAGS="$(TARGET_CPPFLAGS) -mstrict-align"
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else
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WOLFSSL_CONF_OPTS += --disable-armasm
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endif
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ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y)
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WOLFSSL_CONF_OPTS += --with-arm-target=thumb
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endif
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$(eval $(autotools-package))
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