对C语言编写的（开源）代码进行格式化，然后对于每一个函数的调用，进入函数时打印调用信息，推出函数时打印推出信息。即打印出函数调用的全部过程。-On the C language (open source) code format, and then for each function call, enter the function call to print information, the introduction of the introduction of information print function. That is, print out the whole process function call.