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>
44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
config BR2_PACKAGE_WOLFSSL_ASM_SUPPORTS
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bool
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default y if BR2_aarch64
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default y if BR2_arm || BR2_armeb
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default y if BR2_powerpc
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default y if BR2_powerpc64 || BR2_powerpc64le
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default y if BR2_mips64 && !BR2_MIPS_CPU_MIPS32R6
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default y if BR2_mips64el && !BR2_MIPS_CPU_MIPS32R6
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default y if BR2_mips || BR2_mipsel
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default y if BR2_riscv && BR2_RISCV_ISA_RVM
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default y if BR2_s390x
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config BR2_PACKAGE_WOLFSSL
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bool "wolfssl"
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depends on BR2_TOOLCHAIN_HAS_THREADS
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help
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The wolfSSL embedded SSL library (formerly CyaSSL) is a
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lightweight, portable, C-language-based SSL/TLS library
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targeted at IoT, embedded, and RTOS environments primarily
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because of its size, speed, and feature set.
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https://www.wolfssl.com/
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if BR2_PACKAGE_WOLFSSL
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config BR2_PACKAGE_WOLFSSL_ALL
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bool "enable all features, except SSLv3"
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depends on !BR2_STATIC_LIBS
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help
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Enable all wolfSSL features, except SSL version 3.0 support.
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comment "all features, except SSLv3 needs a toolchain w/ dynamic library"
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depends on BR2_STATIC_LIBS
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config BR2_PACKAGE_WOLFSSL_SSLV3
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bool "enable SSLv3"
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help
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Enable SSL version 3.0 support.
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endif
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comment "wolfssl needs a toolchain w/ threads"
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depends on !BR2_TOOLCHAIN_HAS_THREADS
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