如何让A20，android开机自动启动C程序

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/// xinit 增加： xinit /usr/local/bin/xfreerdp 192.168.1.196

1,修改 android/device/ init.sun7i.rc

........(略)

#add by jiangdou
    chmod 777 /system/bin/hello
    chmod 777 /system/bin/dou.sh
service init-setup /system/bin/dou.sh
    class main
    user root
    group root
    oneshot

........(略)

2,在device/softwinner/sugar-cubieboard2/新建dou.sh 文件，内容：

#! /system/bin/sh

#hello是C编译的文件，是静态编译，，放在system/bin/
/system/bin/hello

#or

hello

echo "jiangdou"

exit

3,vi device/softwinner/sugar-cubieboard2/sugar_cubieboard2.mk ///目的是执行make -j48 复制到out/target/product/sugar-cubieboard2/system/bin/

........(略)

#add by jiangdou
PRODUCT_COPY_FILES += \
device/softwinner/sugar-cubieboard2/hello:system/bin/hello \
device/softwinner/sugar-cubieboard2/dou.sh:system/bin/dou.sh

........(略)

4,开机，，效果

root@android:/ # ps | busybox grep hello
root 1409 1 652 108 c006bf0c 0001090c S /system/bin/hello
root 1411 1 652 108 c006bf0c 0001090c S hello
root@android:/ #

证明开机自动运行了

5, C代码内容,,,,编译$ arm-linux-androideabi-gcc -o hello hello.c -static

#include<stdio.h>#include <signal.h>int main(void){   int i;    signal(SIGCHLD, SIG_IGN);    daemon(0, 0);//fork 强制后台运行!   // for(i = 0; i < 10; i++)   while(1)    {     sleep(1);     printf("hello......by jiangdou\n");    } return 0;}

adb push xxx /system ---->ERROR "Readonly-----file system"

adb shell && mount -o remount -o rw /system

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