Re: Error generating coverage report

On 12/12/17 15:02, David Steele wrote:
> I'm working on improving coverage and would like to generate some
> reports (other than the text versions) to help me find uncovered code.
> However, my source path and build path are not the same and I'm running
> into problems.

Vpath builds were one of the things that was specifically tested for the
coverage tooling changes that went into PG11, so it should work in
principle, unless something has changed in the meantime.

> $ make -C test/build/src/bin/pg_basebackup coverage-html
> 
> make: Entering directory `/home/vagrant/test/build/src/bin/pg_basebackup'
> /usr/bin/lcov --gcov-tool /usr/bin/gcov -q --no-external -c -i -d . -d
> /postgres/src/bin/pg_basebackup -o lcov_base.info
> geninfo: ERROR: no .gcno files found in /postgres/src/bin/pg_basebackup!
> make: *** [lcov_base.info] Error 255
> make: *** Deleting file `lcov_base.info'
> make: Leaving directory `/home/vagrant/test/build/src/bin/pg_basebackup'

The -d options should accumulate, so that it should look in both places.

Wild guess: If the /postgres directory is some kind of vboxsf mount,
there might be problems if symlinks are involved.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services