Hi team, I did go through the online manual of gcc gcov on __gcov_dump() and __gcov_reset() : https://gcc.gnu.org/onlinedocs/gcc/Gcov-and-Optimization.html#Gcov-and-Optimization I tried out using the functions in a sample program (sample-prog.c) that is attached here. The steps followed were : (1) gcc -fprofile-arcs -ftest-coverage sample-prog.c (2) ./a.out (3) gcov sample-prog.c While running a.out, when I give character 'g', the __gcov_dump() must be invoked. What I could observe is that first time __gcov_dump() is invoked , the sample-prog.gcda file gets created. For the second time and then onwards, __gcov_dump() invocation (by giving 'g' character during the a.out run) doesn't happen. This is concluded by looking at the time stamp of sample-prog.gcda file in the same folder. It was still having the same time stamp of first time invocation of __gcov_dump(). Another thing is that, __gcov_reset() also doesn't appear to work. I tried giving the character 'r' during the run of the program but couldn't see the counters getting reset to 0 in the sample-prog.gcov file. The previous values of lines covered were there. Let me know if my approach is correct or if I miss any information here. Thanks, Gejoe
Attachment:
sample-prog.c
Description: Binary data
