C++代码覆盖期间运行只有一个功能

Question

我想获得代码覆盖率信息。在运行时只有一个功能。例如，我只想知道哪些行“run（）”已经通过。

TEST.CPP：

#include "..." 

int main(){ 
    init(); 
    gcov_start_recording(); 
    run(); 
    gcov_end_recording(); 
    return 0; 
} 

Answer 1

 
It is unable to get source code information from a normal binary file. 
My basic idea is : 
1. Executable should be complied as debug version , 
which keep the symbol infomation. 
2. You need a external wrapper script for GDB. 

set break point at entry and exit of the function. 
collect trace output from GDB . 
filter the duplicate line in the output . 
finally you will get the code cover information .