linux3.0内核编译常见错误收集

一.arch/arm/kernel/early_printk.c:22:10: error: 'SW_UART0_USR' undeclared (first use in this function)

(1)Kernel hacking  ---> Kernel low-level debugging functions -->   Early printk
(2)boot option中你需要添加 earlyprintk项。类似于：
root=/dev/ram0 console=ttySAC0,115200n8 rdinit=/sbin/init earlyprintk

二.arch/arm/kernel/head.S:89:2: error: #error "unsupport chip"    

    make[1]: *** [arch/arm/kernel/head.o] Error 1