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clang doesn't have Arm big.LITTLE specific tune options - when such an option is used, the compilation fails with an error like this: aarch64-poky-linux-clang: error: unsupported argument 'cortex-a72.cortex-a53+crc+crypto' to option '-mcpu=' To avoid this, in case a big.LITTLE SoC is the target and the toolchain is clang, select the tune corresponding to the LITTLE core. (From OE-Core rev: 12c820f624730a04a17ae2cdbecc4e6987c45cf7) Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>