Set-up Buildbot for GDC

[Johannes Pfau via D.gnu]

Am Fri, 7 Jul 2017 01:12:03 +0200
schrieb "Iain Buclaw via D.gnu" <d.gnu at puremagic.com>:

> On 7 July 2017 at 00:57, Johannes Pfau via D.gnu
> <d.gnu at puremagic.com> wrote:
> > Am Fri, 7 Jul 2017 00:52:20 +0200
> > schrieb Johannes Pfau <nospam at example.com>:
> >  
> >> Am Thu, 6 Jul 2017 10:06:45 +0200
> >> schrieb "Iain Buclaw via D.gnu" <d.gnu at puremagic.com>:
> >>  
> >> >
> >> > I've turned on gridview, and it looks like something close to
> >> > what you are asking I think.
> >> >
> >> > https://buildbot.dgnu.org/#/grid?branch=master
> >> >  
> >>
> >> Looks great!
> >>
> >> BTW: Any idea why buildbot built only 7 builds this time? The armhf
> >> failure looks also interesting, I'm just checking whether I can
> >> reproduce this locally.
> >>  
> >
> > OK, can reproduce. I think it's this in the configure log:
> >
> > configure:7064:  /buildbot/GDC/build/./gcc/xgcc
> > -B/buildbot/GDC/build/./gcc/ -B/usr/arm-linux-gnueabihf/bin/
> > -B/usr/arm-linux-gnueabihf/lib/
> > -isystem /usr/arm-linux-gnueabihf/include
> > -isystem /usr/arm-linux-gnueabihf/sys-include    -o conftest -g -O2
> > conftest.c conftstm.o >&5 /usr/arm-linux-gnueabihf/bin/ld: error:
> > conftest uses VFP register
> > arguments, /buildbot/GDC/build/./gcc/crtbegin.o does
> > not /usr/arm-linux-gnueabihf/bin/ld: failed to merge target specific
> > data of
> > file /buildbot/GDC/build/./gcc/crtbegin.o /usr/arm-linux-gnueabihf/bin/ld:
> > error: conftest uses VFP register arguments, /tmp/cczQi3ST.o does
> > not /usr/arm-linux-gnueabihf/bin/ld: failed to merge target specific
> > data of file /tmp/cczQi3ST.o /usr/arm-linux-gnueabihf/bin/ld: error:
> > conftest uses VFP register arguments, conftstm.o does
> > not /usr/arm-linux-gnueabihf/bin/ld: failed to merge target specific
> > data of file conftstm.o /usr/arm-linux-gnueabihf/bin/ld: error:
> > conftest uses VFP register
> > arguments, /buildbot/GDC/build/./gcc/crtend.o does
> > not /usr/arm-linux-gnueabihf/bin/ld: failed to merge target specific
> > data of file /buildbot/GDC/build/./gcc/crtend.o collect2: error: ld
> > returned 1 exit status
> >
> >
> > Looks like the GCC configuration does not match the ubuntu
> > arm-linux-gnueabihf-gcc specification exactly.
> >
> >  
> 
> Could it be missing --with-float= or --with-fpu configure flag
> perhaps?  I'm just finishing up a few changes to the build scripts
> that turn off building phobos.  Can add another check for extra
> configure flags to be set per-target.
> 
> Iain.

Yes, it's likely one of these. I can't test this right now, but the
simplest way is running the ubuntu arm-linux-gnueabihf-gcc -v and copy
the configuration. We should generally use exactly the same
configuration as ubuntu to get reliable results (Otherwise the
binutils/libc we use from the distribution might be not compatible
with the compiler/libgcc/libstdc++,... libraries we build).

I guess explore.dgnu.org uses the same configuration and it uses:

Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
6.3.0-16ubuntu6' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs
--enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++
--prefix=/usr --program-suffix=-6 --enable-shared
--enable-linker-build-id --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --libdir=/usr/lib
--enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-libitm --disable-libquadmath --enable-plugin
--with-system-zlib --disable-browser-plugin --enable-java-awt=gtk
--enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-armhf-cross/jre
--enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-armhf-cross
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-armhf-cross
--with-arch-directory=arm
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libgcj
--with-target-system-zlib --enable-objc-gc=auto --enable-multiarch
--enable-multilib --disable-sjlj-exceptions --with-arch=armv7-a
--with-fpu=vfpv3-d16 --with-float=hard --with-mode=thumb
--disable-werror --enable-multilib --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=arm-linux-gnueabihf --program-prefix=arm-linux-gnueabihf-
--includedir=/usr/arm-linux-gnueabihf/include


-- Johannes