Just trying to get gcov up and running, getting the following error:
$ gcov src/main.c -o build
build/main.gcno:version \'404*\', prefer \'407*\'
gcov: out of m
My problem was that I updated gcc
and g++
so that I could use a newer compiler, but forgot to update the gcov
version meaning running "gcov
" or "lcov
" picked up the previous compilers version of gcov
.
So basically running g++ --version
and gcov --version
should yield the same version number else things are going to go very wrong.
Here is how I updated my compiler version, the last line being what I was missing to get it all working.
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 90
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.9 90
sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-4.9 90