/**************************************************************************

 *                OK335xS U-boot 编译问题&无Linux shell 问题

 * 声明：

 *    主要是因为系统之前是由本人师傅做的，他去掉了一些信息，同时由于他本人

 * 目前不在旁边，在参考一些文件的时候出现以下情况。

 *

 *                               2015-7-17 阴 深圳 南山平山村 曾剑锋

 *************************************************************************/

一、采用官方的制作U-boot（make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm O=am335x am335x_evm）出现如下错误：

    . 问题：make: *** No rule to make target am335x_evm_config

        . cat Makefile:

            ......

            MKCONFIG        := $(srctree)/mkconfig

            export MKCONFIG

            ......

            %_config:: outputmakefile

                @$(MKCONFIG) -A $(@:_config=)

            ......

        . cat mkconfig

            if [ \( $# -eq  \) -a \( "$1" = "-A" \) ] ; then

                # Automatic mode

                line=`awk '($0 !~ /^#/ && $7 ~ /^'"$2"'$/) { print $1, $2, $3, $4, $5, $6, $7, $8 }' $srctree/boards.cfg`

                if [ -z "$line" ] ; then

                        echo "make: *** No rule to make target \`$2_config'.  Stop." >&

                        exit

                fi

                set ${line}

                # add default board name if needed

                [ $# =  ] && set ${line} ${}

            fi

    . 问题：生成u-boot.bin  error: bad value (armv5) for -march= switch

        http://arm9home.net/read.php?tid-82914.html

    . 解决方法：

        cat > remake.sh << EOF

        export CROSS_COMPILE=arm-linux-gnueabihf-

        export ARCH=arm

        make am335x_evm_config

        make

        EOF

二、文件系统跑起来之后无法得到Linux shell终端：

    #

    # The "id" field MUST be the same as the last

    # characters of the device (after "tty").

    #

    # Format:

    #  <id>:<runlevels>:<action>:<process>

    #

    #S::respawn:/sbin/getty  ttyO0

    ::respawn:/sbin/getty  ttyO0

三、重新生成.config文件：

    . 出错现象：

        Qt@aplex:~/kernel/linux-3.2.$ make uImage

        scripts/kconfig/conf --silentoldconfig Kconfig

        *

        * Restart config...

        *

        *

        * General setup

        *

        Prompt for development and/or incomplete code/drivers (EXPERIMENTAL) [Y/n/?] y

        Cross-compiler tool prefix (CROSS_COMPILE) []

        Local version - append to kernel release (LOCALVERSION) []

        Automatically append version information to the version string (LOCALVERSION_AUTO) [Y/n/?] y

        Kernel compression mode

        > . Gzip (KERNEL_GZIP)

          . Bzip2 (KERNEL_BZIP2) (NEW)

          . LZMA (KERNEL_LZMA)

          . XZ (KERNEL_XZ) (NEW)

          . LZO (KERNEL_LZO)

        choice[-?]:

    . 出现问题原因：

        cat ~/.bashrc

            ......

            CROSS_COMPILE=arm-linux-gnueabihf-

            ARCH=arm

            ......

    . 解决方法：

        cat ~/.bashrc

            ......

            export CROSS_COMPILE=arm-linux-gnueabihf-

            export ARCH=arm

            ......

四、tslib编译问题：

    . 出错现象：

         In function ‘open’,

             inlined from ‘main’ at ts_calibrate.c:::

         /usr/include/x86_64-linux-gnu/bits/fcntl2.h::: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT in second argument needs  arguments

         In function ‘open’,

             inlined from ‘main’ at ts_calibrate.c:::

         /usr/include/x86_64-linux-gnu/bits/fcntl2.h::: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT in second argument needs  arguments

         make[]: *** [ts_calibrate.o] Error

         make[]: Leaving directory `/home/Qt/tslib/tslib/tests'

         make: *** [install-recursive] Error

    . 解决方法：

        http://www.gossamer-threads.com/lists/qmail/users/138200