Lakka-LibreELEC/config/arch.aarch64
kszaq 07e83b2bca config: don't use mcpu switch for arm and aarch64
When compiling glibc for cortex-a9, the following errors appears:
cc1: error: switch -mcpu=cortex-a9 conflicts with -march=armv7-a switch [-Werror]

Using mcpu with march and mtune is not recommended and compiler emits
warnings/errors when mismatched.
2019-05-16 01:19:34 +02:00

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# determines TARGET_CPU, if not forced by user
if [ -z "$TARGET_CPU" ]; then
TARGET_CPU=cortex-a53
fi
# TARGET_CPU:
# generic cortex-a35 cortex-a53 cortex-a57 cortex-a72
# exynos-m1 qdf24xx thunderx xgene1 cortex-a57.cortex-a53
# cortex-a72.cortex-a53
# determine architecture's family
case $TARGET_CPU in
generic|cortex-a35|cortex-a53|cortex-a57|cortex-a72|exynos-m1|qdf24xx|thunderx|xgene1|cortex-a57.cortex-a53|cortex-a72.cortex-a53)
TARGET_SUBARCH=aarch64
TARGET_VARIANT=armv8-a
TARGET_ABI=eabi
TARGET_FEATURES+=" neon"
;;
esac
TARGET_GCC_ARCH=${TARGET_SUBARCH/-}
TARGET_KERNEL_ARCH=arm64
# setup ARCH specific *FLAGS
TARGET_CFLAGS="-march=${TARGET_VARIANT}${TARGET_CPU_FLAGS} -mabi=lp64 -Wno-psabi -mtune=$TARGET_CPU"
TARGET_LDFLAGS="-march=${TARGET_VARIANT}${TARGET_CPU_FLAGS} -mtune=$TARGET_CPU"
GCC_OPTS="--with-abi=lp64 --with-arch=$TARGET_VARIANT"