https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89961
xaizek <xaizek at posteo dot net> changed:
What |Removed |Added
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CC| |xaizek at posteo dot net
--- Comment #11 from xaizek <xaizek at posteo dot net> ---
> Closing this as fixed.
This isn't fixed. I don't think the problem was actually understood.
Say you have:
* src/myclass.o
* tests/myclass.o
If you run `gcov -p -x --json-format src/myclass.o` you get
myclass.gcov.json.gz for that file, running `gcov -p -x --json-format
tests/myclass.o` gives you myclass.gcov.json.gz for the test. Running `gcov -p
-x --json-format src/myclass.o tests/myclass.o` gives myclass.gcov.json.gz *FOR
THE TEST ONLY*, because gcov created output for src/myclass.o and then replaced
it.
>From reading your comment I thought that maybe gcov combines information from
two files before writing the result to address this issue, but it doesn't.
Results you get depends on the order in which files are specified.
Either -p and -x need to be obeyed or reports need to be merged. If combining
is implemented, might as well combine all reports and write a single file
specified on command line (--json-format=myfile.gz or --json-format=- (no
compression needed)).
