64 lines
2.4 KiB
Text
64 lines
2.4 KiB
Text
# determines TARGET_CPU, if not forced by user
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if [ -z "$TARGET_CPU" ]; then
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TARGET_CPU=cortex-a8
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fi
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# TARGET_CPU:
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# arm2 arm250 arm3 arm6 arm60 arm600 arm610 arm620 arm7 arm7m arm7d
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# arm7dm arm7di arm7dmi arm70 arm700 arm700i arm710 arm710c
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# arm7100 arm720 arm7500 arm7500fe arm7tdmi arm7tdmi-s arm710t
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# arm720t arm740t strongarm strongarm110 strongarm1100
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# strongarm1110 arm8 arm810 arm9 arm9e arm920 arm920t arm922t
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# arm946e-s arm966e-s arm968e-s arm926ej-s arm940t arm9tdmi
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# arm10tdmi arm1020t arm1026ej-s arm10e arm1020e arm1022e
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# arm1136j-s arm1136jf-s mpcore mpcorenovfp arm1156t2-s
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# arm1176jz-s arm1176jzf-s cortex-a8 cortex-a9 cortex-r4
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# cortex-r4f cortex-m3 cortex-m1 xscale iwmmxt iwmmxt2 ep9312.
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# TARGET_FPU:
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# This specifies what floating point hardware (or hardware emulation) is
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# available on the target. Permissible names are:
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# fpa fpe2 fpe3 maverick vfp vfpv3 vfpv3-fp16 vfpv3-d16 vfpv3-d16-fp16
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# vfpv3xd vfpv3xd-fp16 neon neon-fp16 vfpv4 vfpv4-d16 fpv4-sp-d16
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# neon-vfpv4.
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# determine architecture's family
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case $TARGET_CPU in
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arm1176jzf-s)
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TARGET_SUBARCH=armv6zk
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TARGET_ABI=eabi
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TARGET_FPU_FLAGS="-mfloat-abi=$TARGET_FLOAT -mfpu=$TARGET_FPU"
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;;
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cortex-a7|cortex-a15|cortex-a17|cortex-a15.cortex-a7|cortex-a17.cortex-a7)
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TARGET_SUBARCH=armv7ve
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TARGET_ABI=eabi
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TARGET_FPU_FLAGS="-mfloat-abi=$TARGET_FLOAT -mfpu=$TARGET_FPU"
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TARGET_FEATURES+=" neon"
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;;
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cortex-a5|cortex-a8|cortex-a9)
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TARGET_SUBARCH=armv7-a
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TARGET_ABI=eabi
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TARGET_FPU_FLAGS="-mfloat-abi=$TARGET_FLOAT -mfpu=$TARGET_FPU"
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TARGET_FEATURES+=" neon"
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;;
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cortex-a35|cortex-a53|cortex-a72.cortex-a53|cortex-a55)
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TARGET_SUBARCH=armv8-a
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TARGET_ABI=eabi
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TARGET_FPU_FLAGS="-mfloat-abi=$TARGET_FLOAT -mfpu=$TARGET_FPU"
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TARGET_FEATURES+=" neon"
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;;
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esac
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# if [ "${TARGET_FLOAT}" = "hard" ]; then
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# TARGET_ABI+="hf"
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# fi
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TARGET_VARIANT="${TARGET_SUBARCH}${TARGET_CPU_FLAGS}"
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TARGET_GCC_ARCH=${TARGET_SUBARCH/-}
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TARGET_KERNEL_ARCH=${TARGET_KERNEL_ARCH:-arm}
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# setup ARCH specific *FLAGS
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TARGET_CFLAGS="-march=$TARGET_VARIANT -mtune=$TARGET_CPU -mabi=aapcs-linux -Wno-psabi -Wa,-mno-warn-deprecated"
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[ -n "$TARGET_FPU" ] && TARGET_CFLAGS="$TARGET_CFLAGS $TARGET_FPU_FLAGS"
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TARGET_LDFLAGS="-march=$TARGET_VARIANT -mtune=$TARGET_CPU"
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GCC_OPTS="--with-abi=aapcs-linux --with-arch=$TARGET_SUBARCH --with-float=$TARGET_FLOAT --with-fpu=$TARGET_FPU"
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