Master fails to build

[dvv]

[dvv@pagocmb snabbswitch]$ make Q=
cd src && make
make[1]: Entering directory '/home/dvv/projects/SNABB/snabbswitch/src'
LUA       obj/apps/basic/basic_apps_lua.o
luajit -bg -n apps.basic.basic_apps apps/basic/basic_apps.lua obj/apps/basic/basic_apps_lua.o
luajit: error loading module 'jit.bcsave' from file './jit/bcsave.lua':
        ./jit/bcsave.lua:1: unexpected symbol near '..'
Makefile:57: recipe for target 'obj/apps/basic/basic_apps_lua.o' failed
make[1]: *** [obj/apps/basic/basic_apps_lua.o] Error 1
make[1]: Leaving directory '/home/dvv/projects/SNABB/snabbswitch/src'
Makefile:9: recipe for target 'all' failed
make: *** [all] Error 2

[dvv@pagocmb snabbswitch]$ which luajit
which: no luajit in (/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/core_perl)

[dvv@pagocmb snabbswitch]$ deps/luajit/usr/local/bin/luajit -v
LuaJIT 2.1.0-alpha -- Copyright (C) 2005-2014 Mike Pall. http://luajit.org/

[dvv@pagocmb snabbswitch]$ uname -a
Linux pagocmb 3.13.6-1-ARCH #1 SMP PREEMPT Fri Mar 7 22:47:48 CET 2014 x86_64 GNU/Linux

[dvv@pagocmb snabbswitch]$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.2/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /build/gcc/src/gcc-4.8-20140206/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-cloog-backend=isl --disable-cloog-version-check --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --disable-multilib --disable-werror --enable-checking=release
Thread model: posix
gcc version 4.8.2 20140206 (prerelease) (GCC)

[dvv@pagocmb snabbswitch]$ make -v
GNU Make 4.0
Built for x86_64-unknown-linux-gnu
Copyright (C) 1988-2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Wonder if someone could confirm/void the issue on the same or similar setup?

[dvv]

Today's attempt gives:

...
DIR       obj/doc/obj
mkdir -p obj/doc/obj
LUA       obj/lib/hardware/vfio_lua.o
luajit -bg -n lib.hardware.vfio lib/hardware/vfio.lua obj/lib/hardware/vfio_lua.o
luajit: error loading module 'jit.bcsave' from file './jit/bcsave.lua':
        ./jit/bcsave.lua:1: unexpected symbol near '..'
Makefile:57: recipe for target 'obj/lib/hardware/vfio_lua.o' failed
make[1]: *** [obj/lib/hardware/vfio_lua.o] Error 1
make[1]: Leaving directory '/home/dvv/projects/SNABB/snabbswitch/src'
Makefile:9: recipe for target 'all' failed
make: *** [all] Error 2

[agladysh]

Erm. Something wrong in LJ innards? Weird!

[dvv]

Some points: https://groups.google.com/forum/#!topic/snabb-devel/Zezo2AIo4Dk

[dvv]

@altexy or someone who succeeds to build: please post versions of software on your setup:

uname -a
gcc -v
make -v
luajit -v

[altexy]

alex@ubuntu:$ uname -a
Linux ubuntu 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
alex@ubuntu:$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.8.1-10ubuntu9' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --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-4.8-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu9)
alex@ubuntu:~$ make -v
GNU Make 3.81
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

This program built for x86_64-pc-linux-gnu
alex@ubuntu:~$ luajit -v
LuaJIT 2.0.2 -- Copyright (C) 2005-2013 Mike Pall. http://luajit.org/

[dvv]

I believe make 4.0 could introduce some brainer. Also, worths to temporarily remove system luajit to be sure it does not interfere with local snabb's one.
Still, digging

[agladysh]

@dvv, @altexy what does git --version say on these machines?

[dvv]

@altexy what is the type of src/jit/bcsave.lua?
On my setup, after a fresh clone, it is vanilla text file containing

../../deps/luajit/src/jit/bcsave.lua

UPDATED

[dvv]

$ git --version
git version 1.9.2

[dvv]

OOPS, somehow had false core.symlinks in .gitconfig :]

So the subj transforms to

lib/hardware/vfio.c:91:21: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
     dma_map.vaddr = (uint64_t)buffer;
                     ^
cc1: all warnings being treated as errors

which is another story.

[agladysh]

@dvv So, does the master build on your system?

[lukego]

Are you running 32-bit (i386)? Realistically I'd say that we only support x86_64 at the moment.

[agladysh]

[dvv@pagocmb snabbswitch]$ uname -a
Linux pagocmb 3.13.6-1-ARCH #1 SMP PREEMPT Fri Mar 7 22:47:48 CET 2014 x86_64 GNU/Linux

The problem was in wrong Git configuration on a local machine, it seems.

[dvv]

Right. Hence, issue closed. Added final note to snabbswitch google group https://groups.google.com/forum/#!topic/snabb-devel/Zezo2AIo4Dk