Profiling using GCC internal GCOV

root@ALOPRASA-EAN6Q: # cat hello.c
#include
int main()
{
        int i;
        for (i = 0;i<100;i++)
        {
                if(i<5)
                printf("hello\n");
        }

return 0;
}

root@ALOPRASA-EAN6Q: # gcc -fprofile-arcs -ftest-coverage hello.c

root@ALOPRASA-EAN6Q: # ls
a.out  hello.c  hello.gcno

root@ALOPRASA-EAN6Q: # ./a.out
hello
hello
hello
hello
hello

root@ALOPRASA-EAN6Q: # gcov hello.c
File 'hello.c'
Lines executed:100.00% of 5
Creating 'hello.c.gcov'

root@ALOPRASA-EAN6Q: # cat hello.c.gcov
        -:    0:Source:hello.c
        -:    0:Graph:hello.gcno
        -:    0:Data:hello.gcda
        -:    0:Runs:1
        -:    0:Programs:1
        -:    1:#include
        1:    2:int main()
        -:    3:{
        -:    4:        int i;
      101:    5:        for (i = 0;i<100;i++)
        -:    6:        {
      100:    7:                if(i<5)
        5:    8:                printf("hello\n");
        -:    9:        }
        -:   10:
        1:   11:return 0;
        -:   12:}