On Fri, Oct 18, 2019 at 09:56:01AM +0200, Arnd Bergmann wrote: > On Thu, Oct 17, 2019 at 6:16 PM Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> wrote: > > On Thu, Oct 17, 2019 at 08:56:50AM -0700, Linus Torvalds wrote: > > > Yeah, that's certainly less than wonderful. > > > > > > That said, there's no way in hell we'll support gcc-4 for another 7 > > > years (eg Suse 12-sp4), so at _some_ point the EOL dates aren't even > > > relevant any more. > > > > > > But it does look like we can't just say "gcc-5.1 is ok". Darn. > > > > I don't read the picture the same way. All distributions have at least one > > major release with GCC >= 5. > > > > The first release with gcc >= 5: > > > > - Debian 9 stretch has 6.3.0, released 2017-06-18; > > > > - Ubuntu 15.10 wily has 5.2.1, released 2015-10-22; > > > > - Fedora 24 has 6.1.1, released 2016-06-21; > > > > - OpenSUSE 15 has 7.4.1, released 2018-05-25; > > > > - RHEL 8.0 has 8.2.1, released 2019-05-06; > > > > - SUSE 15 has 7.3.1, released 2018-06-25; > > > > - Oracle 7.6.4 has 7.6.4, release 2019-07-18; > ^^^ Oracle 8 > > > > - Slackware 14.2 has 5.3.0, released 2016-07-01; > > For /most/ of these I see no problem, but RHEL 7 / Centos 7 / > Oracle 7 and (to a lesser degree) SUSE 12 must have users > that want to build new kernels for some reason without a trivial > way to install new compilers. Isn't crosstool the trivial enough? We can directly suggest using it if compiler is too old. BTW, we already require much newer compiler for some features. See retpoline. -- Kirill A. Shutemov
