u-boot移植流程的C语言描述

 UBOOT的创始人Jerry Van Baren曾经在UBOOT的邮件列表中，使用c语言描述了如何移植UBOOT到你的新板子上去：

 

int main(int argc, char *argv[])

{

    sighandler_t no_more_time; 

    signal(SIGALRM, no_more_time);

    alarm(PROJECT_DEADLINE - toSec (3 * WEEK)); //项目截止时间差3周发报警信号

    //如果不差钱，雇用一个专家来移植UBoot

    if (available_money > available_manpower) {

        Pay consultant to port U-Boot;

        return 0;

    }

    Download latest U-Boot source;

    Subscribe to u-boot mailing list;

    if (clueless)

        email("Hi, I am new to U-Boot, how do I get started?");

    while (learning) {

        Read the README file in the top level directory;

        Read http://www.denx.de/twiki/bin/view/DULG/Manual;

        Read applicable doc/*.README;

        Read the source, Luke;

        /* find . -name "*.[chS]" | xargs grep -i <keyword> */

    }

    //要是有超过2500$，买一个BDI3000仿真器，否则要花掉更多的时间

    if (available_money > toLocalCurrency ($2500))

        Buy a BDI3000;

    else

        Add a lot of aggravation and time;

    if (a similar board exists) {    /* hopefully... */

        cp -a board/<similar> board/<myboard>

        cp include/configs/<similar>.h include/configs/<myboard>.h

    } else {

        Create your own board support subdirectory;

        Create your own board include/configs/<myboard>.h file;

    }

    Edit new board/<myboard> files

    Edit new include/configs/<myboard>.h

    while (!accepted) {

        while (!running) {

            do {

                Add / modify source code;

            } until (compiles);

            Debug;

            if (clueless)

                email("Hi, I am having problems...");

        }

        Send patch file to the U-Boot email list;

        if (reasonable critiques)

            Incorporate improvements from email list code review;

        else

            Defend code as written;

    }

    return 0;

}

//处理项目进度报警，去雇佣一个专家

void no_more_time (int sig)

{

      hire_a_guru();

}