> Was trying to have some fun and get `make coverage' working, but I'm
> hitting some werido problems that I don't understand. Does anyone
> know why this happens, and how to fix it?
>
> Processing src/tftp.gcda
> Processing src/tftp.gcda
> <built-in>:cannot open source file
> geninfo: ERROR: cannot read <built-in>.gcov!
I've seen this too for other projects, and it is generally some
confusion about which directory to search for the *.gcda file. If
you strace lcov you will see that it is searching for the file at
the wrong place. Sometimes I create symlinks to work around this
(the output seems OK) if I really want to get the output, but it
would be great if this was tracked down and fixed properly.
Hm. That is not at all what I'm seeing:
| write(1, "TN:\n", 4TN:
| ) = 4
| open("built-in>.gcov", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or
directory)
| write(2, "geninfo: ERROR: cannot read <bui"..., 45geninfo: ERROR: cannot read
<built-in>.gcov!
| ) = 45
It is trying to open "built-in>.gcov" which of course doesn't exist,
while it should try to open "<built-in>.gov", and just print a warning
since "<built-in>" cannot be found. The code in lcov that causes this is from
geninfo:
| sub read_gcov_header($)
| {
| my $source;
| my $object;
| local *INPUT;
|
| if (!open(INPUT, $_[0]))
| {
| if ($ignore_errors[$ERROR_GCOV])
| {
| warn("WARNING: cannot read $_[0]!\n");
| return (undef,undef);
| }
| die("ERROR: cannot read $_[0]!\n");
| }
Why it is trying to open "built-in>.gcov" is a complete and utter
mystery to me... Anyone know of any perl to be able to fix this?
