u-boot移植流程的C语言描述

最新推荐文章于 2024-06-13 23:38:52 发布

转载最新推荐文章于 2024-06-13 23:38:52 发布 · 1.4k 阅读

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本文详细介绍了如何使用UBoot进行移植工作，包括资金分配、资源获取、学习路径、工具购买、代码编辑等关键步骤。适用于初学者快速上手并成为UBoot移植专家。

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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();
}