Re: make coverage-html would fail within build directory separate from source tree

thanks for your reply. it indeed that there are no .gcon files in source tree directory, they're in build tree directory, which results in failures.

That's a bit wired.

Add more detailed testing steps:
mkdir build_dir
cd build_dir
/home/postgres/postgresql-13.2/configure -- enable-coverage
make
make check
make coverage-html

thanks
walker

------------------ Original ------------------
From: "Alvaro Herrera" <alvherre(at)alvh(dot)no-ip(dot)org&gt;;
Date:&nbsp;Thu, Mar 4, 2021 09:31 PM
To:&nbsp;"walker"<failaway(at)qq(dot)com&gt;;
Cc:&nbsp;"pgsql-hackers"<pgsql-hackers(at)lists(dot)postgresql(dot)org&gt;;
Subject:&nbsp;Re: make coverage-html would fail within build directory separate from source tree

On 2021-Mar-04, walker wrote:

&gt; Hi, hackers
&gt;
&gt; During installation from source code, I created a build directory separate from the source tree, and execute the following command in the build directory:
&gt; /home/postgres/postgresql-13.2/configure -- enable-coverage
&gt; make
&gt; make check
&gt; make coverage-html
&gt;
&gt;
&gt; However, while executing make coverage-html, it failed with the following error messages:
&gt; /bin/lcov --gcov-tool /bin/gcov -q --no-external -c -i -d . -d /home/postgres/postgresql-13.2/ -o lcve_base.info
&gt; ...
&gt; geninfo: ERROR: no .gcno files found in /home/postgres/postgresql-13.2/!
&gt; make: *** [lcov_base.info] Error 255
&gt; make: *** Deleting file 'lcov_base.info'

Hmm, it works fine for me.&nbsp; config.log says I do this (in
/pgsql/build/master-coverage):

&nbsp; $ /pgsql/source/REL_13_STABLE/configure --enable-debug --enable-depend --enable-cassert --enable-coverage --cache-file=/home/alvherre/run/pgconfig.master-coverage.cache --enable-thread-safety --enable-tap-tests --with-python --with-perl --with-tcl --with-openssl --with-libxml --with-tclconfig=/usr/lib/tcl8.6 PYTHON=/usr/bin/python3 --prefix=/pgsql/install/master-coverage --with-pgport=55451

I do run "make install" too, though (and "make -C contrib install").
Not sure if that makes a difference.&nbsp;
But for sure there are no .gcno files in the source dir -- they're all
in the build dir.

--
Álvaro Herrera&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valdivia, Chile
"La persona que no quería pecar / estaba obligada a sentarse
&nbsp;en duras y empinadas sillas&nbsp;&nbsp;&nbsp; / desprovistas, por cierto
&nbsp;de blandos atenuantes"&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (Patricio Vogel)