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【转】去掉Linux内核启动打印的信息(修改代码)

在使用嵌入式linux系统研发产品的过程中,有时会使用console作为用户操作界面,这时就没必要看到linux系统的启动信息,需要将他去掉,现有方法如下:
   在linux内核中的/kernel目录下printk.c文档中有一个函数:
static void __call_console_drivers(unsigned long start, unsigned long end)
{
struct console *con;
for (con = console_drivers; con; con = con->next) {
  if ((con->flags & CON_ENABLED) && con->write)
   con->write(con, &LOG_BUF(start), end - start);
}
}

去掉如下两行重新编译内核即可:
   if ((con->flags & CON_ENABLED) && con->write)
   con->write(con, &LOG_BUF(start), end - start);
 

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