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# Compute ARM-specific values
CT_DoArchTupleValues() {
# The architecture part of the tuple:
case "${CT_ARCH_BITNESS}" in
32)
CT_TARGET_ARCH="${CT_ARCH}${CT_ARCH_SUFFIX:-${target_endian_eb}}"
;;
64)
# ARM 64 (aka AArch64) is special
[ "${CT_ARCH_BE}" = "y" ] && target_endian_eb="_be"
CT_TARGET_ARCH="aarch64${CT_ARCH_SUFFIX:-${target_endian_eb}}"
;;
esac
# The system part of the tuple:
case "${CT_LIBC},${CT_ARCH_ARM_EABI}" in
*glibc,y) CT_TARGET_SYS=gnueabi;;
uClibc,y) CT_TARGET_SYS=uclibcgnueabi;;
musl,y) CT_TARGET_SYS=musleabi;;
*,y) CT_TARGET_SYS=eabi;;
esac
# Set the default instruction set mode
case "${CT_ARCH_ARM_MODE}" in
arm) ;;
thumb)
CT_ARCH_CC_CORE_EXTRA_CONFIG="--with-mode=thumb"
CT_ARCH_CC_EXTRA_CONFIG="--with-mode=thumb"
# CT_ARCH_TARGET_CFLAGS="-mthumb"
;;
esac
if [ "${CT_ARCH_ARM_INTERWORKING}" = "y" ]; then
CT_ARCH_TARGET_CFLAGS+=" -mthumb-interwork"
fi
if [ "${CT_ARCH_ARM_TUPLE_USE_EABIHF}" = "y" ]; then
CT_TARGET_SYS="${CT_TARGET_SYS}hf"
fi
}
CT_DoArchUClibcConfig() {
local cfg="${1}"
CT_DoArchUClibcSelectArch "${cfg}" "arm"
# FIXME: CONFIG_ARM_OABI does not exist in neither uClibc/uClibc-ng
# FIXME: CONFIG_ARM_EABI does not seem to affect anything in either of them, too
# (both check the compiler's built-in define, __ARM_EABI__ instead) except for
# a check for match between toolchain configuration and uClibc-ng in
# uClibc_arch_features.h
if [ "${CT_ARCH_ARM_EABI}" = "y" ]; then
CT_KconfigDisableOption "CONFIG_ARM_OABI" "${cfg}"
CT_KconfigEnableOption "CONFIG_ARM_EABI" "${cfg}"
else
CT_KconfigDisableOption "CONFIG_ARM_EABI" "${cfg}"
CT_KconfigEnableOption "CONFIG_ARM_OABI" "${cfg}"
fi
}
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