crosstool-ng/scripts/build/arch/sh.sh

# Compute sh-specific values

CT_DoArchTupleValues () {
    # The architecture part of the tuple:
    CT_TARGET_ARCH="${CT_ARCH_SH_VARIANT}${CT_ARCH_SUFFIX:-${target_endian_eb}}"

    # Endianness stuff (uses non-standard CFLAGS). If both are compiled, let the
    # compiler's default or multilib iterator be used.
    case "${CT_ARCH_ENDIAN}" in
        big)    CT_ARCH_ENDIAN_CFLAG=-mb;;
        little) CT_ARCH_ENDIAN_CFLAG=-ml;;
    esac

    # Instead of -m{soft,hard}-float, uses CPU type
    CT_ARCH_FLOAT_CFLAG=
    case "${CT_ARCH_SH_VARIANT}" in
        sh3)    CT_ARCH_ARCH_CFLAG=-m3;;
        sh4*)
            # softfp is not possible for SuperH, no need to test for it.
            case "${CT_ARCH_FLOAT}" in
                hard)
                    CT_ARCH_ARCH_CFLAG="-m4${CT_ARCH_SH_VARIANT##sh4}"
                    ;;
                soft)
                    CT_ARCH_ARCH_CFLAG="-m4${CT_ARCH_SH_VARIANT##sh4}-nofpu"
                    ;;
            esac
            ;;
    esac
}

CT_DoArchMultilibList() {
    local save_ifs="${IFS}"
    local new
    local x

    # In a configuration for SuperH, GCC list of multilibs shall not include
    # the default CPU. E.g. if configuring for sh4-*-*, we need to remove
    # "sh4" or "m4" from the multilib list. Otherwise, the resulting compiler
    # will fail when that CPU is selected explicitly "sh4-multilib-linux-gnu-gcc -m4 ..."
    # as it will fail to find the sysroot with that suffix.
    IFS=,
    for x in ${CT_CC_GCC_MULTILIB_LIST}; do
        if [ "${x}" = "${CT_ARCH_SH_VARIANT}" -o "sh${x#m}" = "${CT_ARCH_SH_VARIANT}" ]; then
            CT_DoLog WARN "Ignoring '${x}' in multilib list: it is the default multilib"
            continue
        fi
        new="${new:+${new},}${x}"
    done
    IFS="${save_ifs}"
    CT_CC_GCC_MULTILIB_LIST="${new}"
    CT_DoLog DEBUG "Adjusted CT_CC_GCC_MULTILIB_LIST to '${CT_CC_GCC_MULTILIB_LIST}'"
}

CT_DoArchUClibcConfig() {
    local cfg="${1}"

    # FIXME: uclibc (!ng) seems to support sh64 (sh5), too
    CT_DoArchUClibcSelectArch "${cfg}" "sh"
    CT_KconfigDisableOption "CONFIG_SH3" "${cfg}"
    CT_KconfigDisableOption "CONFIG_SH4" "${cfg}"
    CT_KconfigDisableOption "CONFIG_SH4A" "${cfg}"
    case "${CT_ARCH_SH_VARIANT}" in
        sh3) CT_KconfigEnableOption "CONFIG_SH3" "${cfg}";;
        sh4) CT_KconfigEnableOption "CONFIG_SH4" "${cfg}";;
        sh4a) CT_KconfigEnableOption "CONFIG_SH4A" "${cfg}";;
    esac
}

CT_DoArchUClibcCflags() {
    local cfg="${1}"
    local cflags="${2}"
    local f

    for f in ${cflags}; do
        case "${f}" in
        -ml)
            CT_KconfigDisableOption "ARCH_BIG_ENDIAN" "${dst}"
            CT_KconfigDisableOption "ARCH_WANTS_BIG_ENDIAN" "${dst}"
            CT_KconfigEnableOption "ARCH_LITTLE_ENDIAN" "${dst}"
            CT_KconfigEnableOption "ARCH_WANTS_LITTLE_ENDIAN" "${dst}"
            ;;
        -mb)
            CT_KconfigEnableOption "ARCH_BIG_ENDIAN" "${dst}"
            CT_KconfigEnableOption "ARCH_WANTS_BIG_ENDIAN" "${dst}"
            CT_KconfigDisableOption "ARCH_LITTLE_ENDIAN" "${dst}"
            CT_KconfigDisableOption "ARCH_WANTS_LITTLE_ENDIAN" "${dst}"
            ;;
        -m2|-m2a|-m2a-nofpu|-m3|-m4|-m4-nofpu|-m4a|-m4a-nofpu)
            CT_KconfigDisableOption "CONFIG_SH2" "${cfg}"
            CT_KconfigDisableOption "CONFIG_SH2A" "${cfg}"
            CT_KconfigDisableOption "CONFIG_SH3" "${cfg}"
            CT_KconfigDisableOption "CONFIG_SH4" "${cfg}"
            CT_KconfigDisableOption "CONFIG_SH4A" "${cfg}"
            CT_KconfigDisableOption "UCLIBC_HAS_FPU" "${cfg}"
            case "${f}" in
            -m2)
                CT_KconfigEnableOption "CONFIG_SH2" "${cfg}"
                ;;
            -m2a)
                CT_KconfigEnableOption "CONFIG_SH2A" "${cfg}"
                CT_KconfigEnableOption "UCLIBC_HAS_FPU" "${cfg}"
                ;;
            -m2a-nofpu)
                CT_KconfigEnableOption "CONFIG_SH2A" "${cfg}"
                ;;
            -m3)
                CT_KconfigEnableOption "CONFIG_SH3" "${cfg}"
                ;;
            -m4)
                CT_KconfigEnableOption "CONFIG_SH4" "${cfg}"
                CT_KconfigEnableOption "UCLIBC_HAS_FPU" "${cfg}"
                ;;
            -m4-nofpu)
                CT_KconfigEnableOption "CONFIG_SH4" "${cfg}"
                ;;
            -m4a)
                CT_KconfigEnableOption "CONFIG_SH4A" "${cfg}"
                CT_KconfigEnableOption "UCLIBC_HAS_FPU" "${cfg}"
                ;;
            -m4a-nofpu)
                CT_KconfigEnableOption "CONFIG_SH4A" "${cfg}"
                ;;
            esac
            ;;
        esac
    done
}