gen_arch.sh

#!/bin/bash
# $Id$

get_official_arch() {
    if [ "${CMD_ARCHOVERRIDE}" != '' ]
    then
        ARCH=${CMD_ARCHOVERRIDE}
    else
        if [ "${ARCH_OVERRIDE}" != '' ]
        then
            ARCH=${ARCH_OVERRIDE}
        else
            ARCH=`uname -m`
            case "${ARCH}" in
                i?86)
                    ARCH="x86"
                    ;;
                mips|mips64)
                    ARCH="mips"
                    ;;
                arm*)
                    ARCH=arm
                    ;;
                *)
                    ;;
            esac
        fi
    fi

    if [ "${CMD_UTILS_ARCH}" != '' ]
    then
        UTILS_ARCH=${CMD_UTILS_ARCH}
    else
        if [ "${UTILS_ARCH}" != '' ]
        then
            UTILS_ARCH=${UTILS_ARCH}
        fi
    fi

    # sparc64 klibc is b0rked, so we force to 32
    if [ "${ARCH}" = 'sparc64' ]
    then
        UTILS_ARCH='sparc'
    fi

    ARCH_CONFIG="${GK_SHARE}/arch/${ARCH}/config.sh"
    [ -f "${ARCH_CONFIG}" ] || gen_die "${ARCH} not yet supported by genkernel. Please add the arch-specific config file, ${ARCH_CONFIG}"
}

set_kernel_arch() {
    KERNEL_ARCH=${ARCH}
    case ${ARCH} in
        ppc|ppc64)
            if [ "${VER}" -ge "3" ]
            then
                    KERNEL_ARCH=powerpc
            elif [ "${VER}" -eq "2" -a "${PAT}" -ge "6" ]
            then
                if [ "${PAT}" -eq "6" -a "${SUB}" -ge "16" ] || [ "${PAT}" -gt "6" ]
                then
                    KERNEL_ARCH=powerpc
                fi
            fi
            ;;
        x86)
            if [ "${VER}" -ge "3" ]
            then
                    KERNEL_ARCH=x86
            elif [ "${VER}" -eq "2" -a "${PAT}" -ge "6" ] || [ "${VER}" -gt "2" ]
            then
                if [ "${PAT}" -eq "6" -a "${SUB}" -ge "24" ] || [ "${PAT}" -gt "6" ]
                then
                    KERNEL_ARCH=x86
                else
                    KERNEL_ARCH=i386
                fi
            fi
            ;;
        x86_64)
            if [ "${VER}" -ge "3" ]
            then
                    KERNEL_ARCH=x86
            elif [ "${VER}" -eq "2" -a "${PAT}" -ge "6" ] || [ "${VER}" -gt "2" ]
            then
                if [ "${PAT}" -eq "6" -a "${SUB}" -ge "24" ] || [ "${PAT}" -gt "6" ]
                then
                    KERNEL_ARCH=x86
                fi
            fi
            ;;
    esac
    export KERNEL_ARCH
    print_info 2 "KERNEL_ARCH=${KERNEL_ARCH}"
}