gcov status? Limitations?

gcov status? Limitations?

[nbecker]

I'm trying to use gcov with gcc-3.0.1 (i686-pc-gnu-linux).  The
results I'm seeing make no sense at all.

What is the status of gcov?  Is it supposed to work?  Will it work
with g++?  Will it work with inlined code?  Templates?

I won't bore you all with lots of details, but just for a start:

           4    int main (int argc, char** argv) {
           2      rng_t rng;
		  
           2      double extraRemodDelay = 0.36;
		
           2      if (argc > 1 && argv[argc-1] && argv[argc-1][0] != '-') {
      ######        yyin = fopen (argv[argc-1], "r");
      ######        InputFileName = argv[argc-1];
		  }

So main was called 4 times????  The next line 2 times???  The lines
marked ###### were supposedly not called?  I know absolutely for sure
they were.
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Re: gcov status? Limitations?

[Janis Johnson]

On Tue, Oct 09, 2001 at 02:53:39PM -0400, nbecker@fred.net wrote:
> I'm trying to use gcov with gcc-3.0.1 (i686-pc-gnu-linux).  The
> results I'm seeing make no sense at all.
> 
> What is the status of gcov?  Is it supposed to work?  Will it work
> with g++?  Will it work with inlined code?  Templates?
> 
> I won't bore you all with lots of details, but just for a start:
> 
>            4    int main (int argc, char** argv) {
>            2      rng_t rng;
> 		  
>            2      double extraRemodDelay = 0.36;
> 		
>            2      if (argc > 1 && argv[argc-1] && argv[argc-1][0] != '-') {
>       ######        yyin = fopen (argv[argc-1], "r");
>       ######        InputFileName = argv[argc-1];
> 		  }
> 
> So main was called 4 times????  The next line 2 times???  The lines
> marked ###### were supposedly not called?  I know absolutely for sure
> they were.

3.0.1 gcov is supposed to work with C++, but it isn't tested and there
could well be problems.

See http://gcc.gnu.org/bugs.html for information about reporting bugs in
GCC.  Specific problems with test cases are more likely to lead to fixes
or to better documentation about limitations.

Janis