On Tue, Mar 31, 2020 at 12:35 PM Nathan Chancellor <natechancellor@xxxxxxxxx> wrote: > > On Tue, Mar 31, 2020 at 11:39:27AM -0700, Nick Desaulniers wrote: > > On Mon, Mar 30, 2020 at 11:25 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote: > > > > > > In fact, the debian provides multiple versions of GCC. > > > For example, my machine has > > > > > > masahiro@pug:~$ ls -1 /usr/bin/gcc-* > > > /usr/bin/gcc-4.8 > > > /usr/bin/gcc-5 > > > /usr/bin/gcc-7 > > > /usr/bin/gcc-ar > > > /usr/bin/gcc-ar-4.8 > > > /usr/bin/gcc-ar-5 > > > /usr/bin/gcc-ar-7 > > > /usr/bin/gcc-nm > > > /usr/bin/gcc-nm-4.8 > > > /usr/bin/gcc-nm-5 > > > /usr/bin/gcc-nm-7 > > > /usr/bin/gcc-ranlib > > > /usr/bin/gcc-ranlib-4.8 > > > /usr/bin/gcc-ranlib-5 > > > /usr/bin/gcc-ranlib-7 > > > > > > But, nobody has suggested GCC_SUFFIX. > > > > > > So, I guess CROSS_COMPILE was enough to > > > choose a specific tool version. > > > > Or no one was testing specific versions of gcc with more than one > > installed. I can ask the KernelCI folks next week if this is an issue > > they face or have faced. > > Well gcc is just one tool, so specified CC=gcc-5 is not that > complicated; it would get a lot more gnarly if one had different > versions of binutils as well. Have you had to test different releases of binutils yet? I have, and it was not fun. I don't even remember what I did but I recall it being painful trying to get it to work. (I think I finally solved it via temporary symlink). Speaking of, I should get back to those dwarf-5 patches I started, now that binutils devs implemented every missing feature I could find. -- Thanks, ~Nick Desaulniers
