From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Thu, 2 Jul 2015 23:46:17 +0200 Subject: [Buildroot] [PATCH] Disable gcc-4.8.x + binutils-2.25 + MIPS combination In-Reply-To: <1435850348-19416-1-git-send-email-Vincent.Riera@imgtec.com> References: <1435850348-19416-1-git-send-email-Vincent.Riera@imgtec.com> Message-ID: <20150702234617.4d33bb5f@free-electrons.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Dear Vicente Olivert Riera, On Thu, 2 Jul 2015 17:19:08 +0200, Vicente Olivert Riera wrote: > This combination causes a compilation failure of the host-gcc-final > recipe like this one: > > /br/output/host/usr/mips-buildroot-linux-gnu/bin/ld: > .libs/gload.o: relocation R_MIPS_HI16 against `__gnu_local_gp' can not > be used when making a shared object; recompile with -fPIC > > The problem is the file 'libatomic/gload.c' is compiled without -fPIC > when using binutils-2.25. All gcc (with libatomic) versions below 4.9.3 > are affected by this issue. > > Here is a summary of affected/unaffected versions in Buildroot: > > 4.7.x: unaffected (doesn't have libatomic) > 4.8.x: affected > 4.9.x: unaffected (we have 4.9.3 which is fixed) > 5.1.x: unaffected > > The fix can be found here: > > https://github.com/gcc-mirror/gcc/commit/57f5c0954f95cb37f995d60167ddde06c7d6e697 > > However, given the following reasons... > > - Upstream gcc 4.8 branch is closed. > - The fix is very hard to backport from 4.9 to 4.8. > - This stuff is insanely sensitive and not working at all could be > better than looking like it works but not quite. > > ...I think the best choice is to disable that combination in Buildroot. > > Signed-off-by: Vicente Olivert Riera > --- > package/gcc/Config.in.host | 2 ++ > 1 file changed, 2 insertions(+) Applied, thanks. Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com