报错如下：

Compiling : bm::dc.cppg++: internal compiler error: Killed (program cc1plus)Please submit a full bug report,with preprocessed source if appropriate.See 
    
      for instructions.make: *** [/home/wasdns/p4factory/targets/switch/build//bm/obj/dc.o] Error 4
    

这种类型的错误：

make: *** [···/xx.o] Error 4

一般是由于你对虚拟机的RAM内存分配不足。解决方法一个是关闭虚拟机，然后修改其分配的内存；另一个是换一台配置好些的机子。

在p4lang的Github中也有人遇到过这种问题，下面贴出链接。

参考：

The build process can run for pretty long, especially if you don't have much memory. You can speed things up by assigning more resources to your VM.

2016/12/25