gcov not generating .gcda file
Thu Jun 24 01:31:00 GMT 2010
sorry for the late response.
> I do get .gcno files.
Right, these files get generated by the compiler if you specify the
-ftest-coverage option (or the --coverage option). The *.gcno files will
the be used to calcuate the program coverage by gcov.
> Is theer some sort of a log file some where that may give me an idea
> what is happening?
I shortly checked the code of libgcov.a and I could not find any log
entries. So, if you really want to debug the libgcov.a (which gets
linked into your app whenever you build with -fprofile-arcs) you would
apparently have to modify the code of libgcov.a.
But, while playing around with the -fprofile-arcs and -ftest-coverage
options, I realized that the *.gcda don't necessarily get created in
your current work directory. The file path for the *.gcda file gets
included hard-coded as absolute file name into the executable.
For example, taking this sample test program 'test.exe', you could
display the file paths by using:
# strings test.exe | grep gcda
I don't want to say that this is the solution for your problem, but
maybe you looked in the wrong directories?
Unfortunately, I can't find any option which tells gcc to write a
relative path into the exectuable, but I would say it should be quite
easy to add a patch for that (assuming this solves your problem)
I hope that helps,
More information about the Gcc-help