From: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> [ Upstream commit a05b9608456e0d4464c6f7ca8572324ace57a3f4 ] Clang produces references to __aeabi_uidivmod and __aeabi_idivmod for arm-linux-gnueabi and arm-linux-gnueabihf targets incorrectly when AEABI is not selected (such as when OABI_COMPAT is selected). While this means that OABI userspaces wont be able to upgraded to kernels built with Clang, it means that boards that don't enable AEABI like s3c2410_defconfig will stop failing to link in KernelCI when built with Clang. Link: https://github.com/ClangBuiltLinux/linux/issues/482 Link: https://groups.google.com/forum/#!msg/clang-built-linux/yydsAAux5hk/GxjqJSW-AQAJ Suggested-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/arm/Kconfig | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index cf69aab648fbd..f0080864b9ce8 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1595,8 +1595,9 @@ config ARM_PATCH_IDIV code to do integer division. config AEABI - bool "Use the ARM EABI to compile the kernel" if !CPU_V7 && !CPU_V7M && !CPU_V6 && !CPU_V6K - default CPU_V7 || CPU_V7M || CPU_V6 || CPU_V6K + bool "Use the ARM EABI to compile the kernel" if !CPU_V7 && \ + !CPU_V7M && !CPU_V6 && !CPU_V6K && !CC_IS_CLANG + default CPU_V7 || CPU_V7M || CPU_V6 || CPU_V6K || CC_IS_CLANG help This option allows for the kernel to be compiled using the latest ARM ABI (aka EABI). This is only useful if you are using a user -- 2.20.1
