Note that the original author of the ARM support chimed in on this on the devel 
list:

    http://www.open-mpi.org/community/lists/devel/2013/01/11955.php


On Jan 21, 2013, at 6:50 AM, George Bosilca <bosi...@icl.utk.edu>
 wrote:

> Great, I pushed everything upstream:
> - trunk (r27882)
> - prepared a patch for the 1.6 
> (https://svn.open-mpi.org/trac/ompi/ticket/3469)
> - requested a CMR for the 1.7 (https://svn.open-mpi.org/trac/ompi/ticket/3470)
> 
> Thanks for your help,
>  George.
> 
> 
> On Jan 21, 2013, at 07:56 , Lee Eric <openlinuxsou...@gmail.com> wrote:
> 
>> Thank you mate. This patch works quite well on my Raspberry Pi w/o any
>> error. Can we put them in the upstream?
>> 
>> Thanks.
>> 
>> Eric
>> 
>> On Mon, Jan 21, 2013 at 12:07 AM, George Bosilca <bosi...@icl.utk.edu> wrote:
>>> Eric,
>>> 
>>> What do you think about the patch attached to ticket #3469 
>>> (https://svn.open-mpi.org/trac/ompi/ticket/3469). We might blend the two 
>>> patches together, and have all the different ARM versions covered.
>>> 
>>> Thanks,
>>>   George.
>>> 
>>> On Jan 20, 2013, at 05:55 , Lee Eric <openlinuxsou...@gmail.com> wrote:
>>> 
>>>> Hi,
>>>> 
>>>> The above issue fixed w/ this patch I used:
>>>> https://raw.github.com/sebhtml/patches/master/openmpi/Raspberry-Pi-openmpi-1.6.2.patch
>>>> 
>>>> Is that possible OpenMPI can contain this patch in the future?
>>>> 
>>>> Thanks.
>>>> 
>>>> On Sun, Jan 20, 2013 at 3:13 AM, Lee Eric <openlinuxsou...@gmail.com> 
>>>> wrote:
>>>>> Hi,
>>>>> 
>>>>> I just use --disable-mpif77 and --disable-mpif90 to let configure run
>>>>> well. However, I know it's only tough workround. After configured
>>>>> well, I encounter following error when run make:
>>>>> 
>>>>> Making all in config
>>>>> make[1]: Entering directory `/home/huli/Projects/openmpi-1.6.3/config'
>>>>> make[1]: Nothing to be done for `all'.
>>>>> make[1]: Leaving directory `/home/huli/Projects/openmpi-1.6.3/config'
>>>>> Making all in contrib
>>>>> make[1]: Entering directory `/home/huli/Projects/openmpi-1.6.3/contrib'
>>>>> make[1]: Nothing to be done for `all'.
>>>>> make[1]: Leaving directory `/home/huli/Projects/openmpi-1.6.3/contrib'
>>>>> Making all in opal
>>>>> make[1]: Entering directory `/home/huli/Projects/openmpi-1.6.3/opal'
>>>>> Making all in include
>>>>> make[2]: Entering directory 
>>>>> `/home/huli/Projects/openmpi-1.6.3/opal/include'
>>>>> make  all-am
>>>>> make[3]: Entering directory 
>>>>> `/home/huli/Projects/openmpi-1.6.3/opal/include'
>>>>> make[3]: Leaving directory 
>>>>> `/home/huli/Projects/openmpi-1.6.3/opal/include'
>>>>> make[2]: Leaving directory 
>>>>> `/home/huli/Projects/openmpi-1.6.3/opal/include'
>>>>> Making all in libltdl
>>>>> make[2]: Entering directory 
>>>>> `/home/huli/Projects/openmpi-1.6.3/opal/libltdl'
>>>>> make  all-am
>>>>> make[3]: Entering directory 
>>>>> `/home/huli/Projects/openmpi-1.6.3/opal/libltdl'
>>>>> /bin/sh ./libtool  --tag=CC   --mode=compile
>>>>> armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> -DLT_CONFIG_H='<config.h>' -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband   -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -MT dlopen.lo -MD -MP -MF .deps/dlopen.Tpo
>>>>> -c -o dlopen.lo `test -f 'loaders/dlopen.c' || echo
>>>>> './'`loaders/dlopen.c
>>>>> /bin/sh ./libtool  --tag=CC   --mode=compile
>>>>> armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.  -DLTDLOPEN=libltdlc
>>>>> -DLT_CONFIG_H='<config.h>' -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband   -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -MT libltdlc_la-preopen.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-preopen.Tpo -c -o libltdlc_la-preopen.lo `test -f
>>>>> 'loaders/preopen.c' || echo './'`loaders/preopen.c
>>>>> /bin/sh ./libtool  --tag=CC   --mode=compile
>>>>> armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.  -DLTDLOPEN=libltdlc
>>>>> -DLT_CONFIG_H='<config.h>' -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband   -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -MT libltdlc_la-lt__alloc.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-lt__alloc.Tpo -c -o libltdlc_la-lt__alloc.lo `test
>>>>> -f 'lt__alloc.c' || echo './'`lt__alloc.c
>>>>> /bin/sh ./libtool  --tag=CC   --mode=compile
>>>>> armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.  -DLTDLOPEN=libltdlc
>>>>> -DLT_CONFIG_H='<config.h>' -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband   -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -MT libltdlc_la-lt_dlloader.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-lt_dlloader.Tpo -c -o libltdlc_la-lt_dlloader.lo
>>>>> `test -f 'lt_dlloader.c' || echo './'`lt_dlloader.c
>>>>> /bin/sh ./libtool  --tag=CC   --mode=compile
>>>>> armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.  -DLTDLOPEN=libltdlc
>>>>> -DLT_CONFIG_H='<config.h>' -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband   -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -MT libltdlc_la-lt_error.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-lt_error.Tpo -c -o libltdlc_la-lt_error.lo `test -f
>>>>> 'lt_error.c' || echo './'`lt_error.c
>>>>> /bin/sh ./libtool  --tag=CC   --mode=compile
>>>>> armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.  -DLTDLOPEN=libltdlc
>>>>> -DLT_CONFIG_H='<config.h>' -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband   -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -MT libltdlc_la-ltdl.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-ltdl.Tpo -c -o libltdlc_la-ltdl.lo `test -f 'ltdl.c'
>>>>> || echo './'`ltdl.c
>>>>> /bin/sh ./libtool  --tag=CC   --mode=compile
>>>>> armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.  -DLTDLOPEN=libltdlc
>>>>> -DLT_CONFIG_H='<config.h>' -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband   -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -MT libltdlc_la-slist.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-slist.Tpo -c -o libltdlc_la-slist.lo `test -f
>>>>> 'slist.c' || echo './'`slist.c
>>>>> /bin/sh ./libtool --tag=CC   --mode=compile
>>>>> armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> -DLT_CONFIG_H='<config.h>' -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband   -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -MT lt__strl.lo -MD -MP -MF
>>>>> .deps/lt__strl.Tpo -c -o lt__strl.lo lt__strl.c
>>>>> libtool: compile:  armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> -DLTDLOPEN=libltdlc "-DLT_CONFIG_H=<config.h>" -DLTDL -I. -I.
>>>>> -Ilibltdl -I./libltdl -I./libltdl
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband -Ofast -mfpu=vfp
>>>>> -mfloat-abi=hard -MT libltdlc_la-lt__alloc.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-lt__alloc.Tpo -c lt__alloc.c  -fPIC -DPIC -o
>>>>> .libs/libltdlc_la-lt__alloc.o
>>>>> libtool: compile:  armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> -DLTDLOPEN=libltdlc "-DLT_CONFIG_H=<config.h>" -DLTDL -I. -I.
>>>>> -Ilibltdl -I./libltdl -I./libltdl
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband -Ofast -mfpu=vfp
>>>>> -mfloat-abi=hard -MT libltdlc_la-preopen.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-preopen.Tpo -c loaders/preopen.c  -fPIC -DPIC -o
>>>>> .libs/libltdlc_la-preopen.o
>>>>> libtool: compile:  armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> -DLTDLOPEN=libltdlc "-DLT_CONFIG_H=<config.h>" -DLTDL -I. -I.
>>>>> -Ilibltdl -I./libltdl -I./libltdl
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband -Ofast -mfpu=vfp
>>>>> -mfloat-abi=hard -MT libltdlc_la-lt_error.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-lt_error.Tpo -c lt_error.c  -fPIC -DPIC -o
>>>>> .libs/libltdlc_la-lt_error.o
>>>>> libtool: compile:  armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> "-DLT_CONFIG_H=<config.h>" -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband -Ofast -mfpu=vfp
>>>>> -mfloat-abi=hard -MT lt__strl.lo -MD -MP -MF .deps/lt__strl.Tpo -c
>>>>> lt__strl.c  -fPIC -DPIC -o .libs/lt__strl.o
>>>>> libtool: compile:  armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> "-DLT_CONFIG_H=<config.h>" -DLTDL -I. -I. -Ilibltdl -I./libltdl
>>>>> -I./libltdl 
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband -Ofast -mfpu=vfp
>>>>> -mfloat-abi=hard -MT dlopen.lo -MD -MP -MF .deps/dlopen.Tpo -c
>>>>> loaders/dlopen.c  -fPIC -DPIC -o .libs/dlopen.o
>>>>> libtool: compile:  armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> -DLTDLOPEN=libltdlc "-DLT_CONFIG_H=<config.h>" -DLTDL -I. -I.
>>>>> -Ilibltdl -I./libltdl -I./libltdl
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband -Ofast -mfpu=vfp
>>>>> -mfloat-abi=hard -MT libltdlc_la-lt_dlloader.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-lt_dlloader.Tpo -c lt_dlloader.c  -fPIC -DPIC -o
>>>>> .libs/libltdlc_la-lt_dlloader.o
>>>>> libtool: compile:  armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> -DLTDLOPEN=libltdlc "-DLT_CONFIG_H=<config.h>" -DLTDL -I. -I.
>>>>> -Ilibltdl -I./libltdl -I./libltdl
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband -Ofast -mfpu=vfp
>>>>> -mfloat-abi=hard -MT libltdlc_la-ltdl.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-ltdl.Tpo -c ltdl.c  -fPIC -DPIC -o
>>>>> .libs/libltdlc_la-ltdl.o
>>>>> libtool: compile:  armv6-rpi-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
>>>>> -DLTDLOPEN=libltdlc "-DLT_CONFIG_H=<config.h>" -DLTDL -I. -I.
>>>>> -Ilibltdl -I./libltdl -I./libltdl
>>>>> -I/home/huli/Projects/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include
>>>>> -I/usr/include/infiniband -I/usr/include/infiniband -Ofast -mfpu=vfp
>>>>> -mfloat-abi=hard -MT libltdlc_la-slist.lo -MD -MP -MF
>>>>> .deps/libltdlc_la-slist.Tpo -c slist.c  -fPIC -DPIC -o
>>>>> .libs/libltdlc_la-slist.o
>>>>> mv -f .deps/dlopen.Tpo .deps/dlopen.Plo
>>>>> /bin/sh ./libtool --tag=CC   --mode=link armv6-rpi-linux-gnueabi-gcc
>>>>> -Ofast -mfpu=vfp -mfloat-abi=hard -module -avoid-version  -o dlopen.la
>>>>> dlopen.lo -ldl -ldl -lrt -lnsl  -lutil -lm
>>>>> mv -f .deps/libltdlc_la-lt__alloc.Tpo .deps/libltdlc_la-lt__alloc.Plo
>>>>> mv -f .deps/lt__strl.Tpo .deps/lt__strl.Plo
>>>>> mv -f .deps/libltdlc_la-lt_error.Tpo .deps/libltdlc_la-lt_error.Plo
>>>>> mv -f .deps/libltdlc_la-preopen.Tpo .deps/libltdlc_la-preopen.Plo
>>>>> mv -f .deps/libltdlc_la-lt_dlloader.Tpo .deps/libltdlc_la-lt_dlloader.Plo
>>>>> libtool: link: armv6-rpi-linux-gnueabi-ar cru .libs/dlopen.a 
>>>>> .libs/dlopen.o
>>>>> libtool: link: armv6-rpi-linux-gnueabi-ranlib .libs/dlopen.a
>>>>> mv -f .deps/libltdlc_la-slist.Tpo .deps/libltdlc_la-slist.Plo
>>>>> libtool: link: ( cd ".libs" && rm -f "dlopen.la" && ln -s
>>>>> "../dlopen.la" "dlopen.la" )
>>>>> mv -f .deps/libltdlc_la-ltdl.Tpo .deps/libltdlc_la-ltdl.Plo
>>>>> /bin/sh ./libtool --tag=CC   --mode=link armv6-rpi-linux-gnueabi-gcc
>>>>> -Ofast -mfpu=vfp -mfloat-abi=hard -no-undefined -dlpreopen dlopen.la
>>>>> -o libltdlc.la  libltdlc_la-preopen.lo libltdlc_la-lt__alloc.lo
>>>>> libltdlc_la-lt_dlloader.lo libltdlc_la-lt_error.lo libltdlc_la-ltdl.lo
>>>>> libltdlc_la-slist.lo lt__strl.lo -ldl -lrt -lnsl  -lutil -lm
>>>>> libtool: link: rm -f .libs/libltdlc.nm .libs/libltdlc.nmS 
>>>>> .libs/libltdlc.nmT
>>>>> libtool: link: (cd .libs && armv6-rpi-linux-gnueabi-gcc -Ofast
>>>>> -mfpu=vfp -mfloat-abi=hard -c -fno-builtin  -fPIC -DPIC "libltdlcS.c")
>>>>> libtool: link: rm -f ".libs/libltdlcS.c" ".libs/libltdlc.nm"
>>>>> ".libs/libltdlc.nmS" ".libs/libltdlc.nmT"
>>>>> libtool: link: (cd .libs/libltdlc.lax/dlopen.a &&
>>>>> armv6-rpi-linux-gnueabi-ar x
>>>>> "/home/huli/Projects/openmpi-1.6.3/opal/libltdl/./.libs/dlopen.a")
>>>>> libtool: link: armv6-rpi-linux-gnueabi-ar cru .libs/libltdlc.a
>>>>> .libs/libltdlc_la-preopen.o .libs/libltdlc_la-lt__alloc.o
>>>>> .libs/libltdlc_la-lt_dlloader.o .libs/libltdlc_la-lt_error.o
>>>>> .libs/libltdlc_la-ltdl.o .libs/libltdlc_la-slist.o .libs/lt__strl.o
>>>>> .libs/libltdlcS.o  .libs/libltdlc.lax/dlopen.a/dlopen.o
>>>>> libtool: link: armv6-rpi-linux-gnueabi-ranlib .libs/libltdlc.a
>>>>> libtool: link: rm -fr .libs/libltdlc.lax
>>>>> libtool: link: ( cd ".libs" && rm -f "libltdlc.la" && ln -s
>>>>> "../libltdlc.la" "libltdlc.la" )
>>>>> make[3]: Leaving directory 
>>>>> `/home/huli/Projects/openmpi-1.6.3/opal/libltdl'
>>>>> make[2]: Leaving directory 
>>>>> `/home/huli/Projects/openmpi-1.6.3/opal/libltdl'
>>>>> Making all in asm
>>>>> make[2]: Entering directory `/home/huli/Projects/openmpi-1.6.3/opal/asm'
>>>>> rm -f atomic-asm.S
>>>>> CC     asm.lo
>>>>> ln -s "../../opal/asm/generated/atomic-local.s" atomic-asm.S
>>>>> CPPAS  atomic-asm.lo
>>>>> atomic-asm.S: Assembler messages:
>>>>> atomic-asm.S:7: Error: selected processor does not support ARM mode `dmb'
>>>>> atomic-asm.S:15: Error: selected processor does not support ARM mode `dmb'
>>>>> atomic-asm.S:23: Error: selected processor does not support ARM mode `dmb'
>>>>> atomic-asm.S:55: Error: selected processor does not support ARM mode `dmb'
>>>>> atomic-asm.S:70: Error: selected processor does not support ARM mode `dmb'
>>>>> make[2]: *** [atomic-asm.lo] Error 1
>>>>> make[2]: *** Waiting for unfinished jobs....
>>>>> make[2]: Leaving directory `/home/huli/Projects/openmpi-1.6.3/opal/asm'
>>>>> make[1]: *** [all-recursive] Error 1
>>>>> make[1]: Leaving directory `/home/huli/Projects/openmpi-1.6.3/opal'
>>>>> make: *** [all-recursive] Error 1
>>>>> 
>>>>> Here's my toolchain's gcc details.
>>>>> 
>>>>> [huli@localhost openmpi-1.6.3]$ armv6-rpi-linux-gnueabi-gcc -v
>>>>> Using built-in specs.
>>>>> COLLECT_GCC=armv6-rpi-linux-gnueabi-gcc
>>>>> COLLECT_LTO_WRAPPER=/home/huli/Projects/arm-devel-rpi/libexec/gcc/arm-rpi-linux-gnueabi/4.7.3/lto-wrapper
>>>>> Target: arm-rpi-linux-gnueabi
>>>>> Configured with:
>>>>> /home/huli/Projects/ct-rpi/.build/src/gcc-linaro-4.7-2012.10/configure
>>>>> --build=x86_64-build_unknown-linux-gnu
>>>>> --host=x86_64-build_unknown-linux-gnu --target=arm-rpi-linux-gnueabi
>>>>> --prefix=/home/huli/Projects/arm-devel-rpi
>>>>> --with-sysroot=/home/huli/Projects/arm-devel-rpi/arm-rpi-linux-gnueabi/sysroot
>>>>> --enable-languages=c,c++,fortran --with-arch=armv6zk
>>>>> --with-cpu=arm1176jzf-s --with-tune=arm1176jzf-s --with-fpu=vfp
>>>>> --with-float=hard --with-pkgversion='crosstool-NG 1.17.0'
>>>>> --enable-__cxa_atexit --disable-libmudflap --disable-libgomp
>>>>> --disable-libssp --disable-libquadmath --disable-libquadmath-support
>>>>> --with-gmp=/home/huli/Projects/ct-rpi/.build/arm-rpi-linux-gnueabi/buildtools
>>>>> --with-mpfr=/home/huli/Projects/ct-rpi/.build/arm-rpi-linux-gnueabi/buildtools
>>>>> --with-mpc=/home/huli/Projects/ct-rpi/.build/arm-rpi-linux-gnueabi/buildtools
>>>>> --with-ppl=/home/huli/Projects/ct-rpi/.build/arm-rpi-linux-gnueabi/buildtools
>>>>> --with-cloog=/home/huli/Projects/ct-rpi/.build/arm-rpi-linux-gnueabi/buildtools
>>>>> --with-libelf=/home/huli/Projects/ct-rpi/.build/arm-rpi-linux-gnueabi/buildtools
>>>>> --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic
>>>>> -lm 
>>>>> -L/home/huli/Projects/ct-rpi/.build/arm-rpi-linux-gnueabi/buildtools/lib
>>>>> -lpwl' --enable-threads=posix --enable-target-optspace --disable-nls
>>>>> --disable-multilib
>>>>> --with-local-prefix=/home/huli/Projects/arm-devel-rpi/arm-rpi-linux-gnueabi/sysroot
>>>>> --enable-c99 --enable-long-long --with-float=hard
>>>>> Thread model: posix
>>>>> gcc version 4.7.3 20121001 (prerelease) (crosstool-NG 1.17.0)
>>>>> 
>>>>> Anyone have idea?
>>>>> 
>>>>> Thanks.
>>>>> 
>>>>> Eric
>>>>> 
>>>>> On Sun, Jan 20, 2013 at 2:05 AM, Lee Eric <openlinuxsou...@gmail.com> 
>>>>> wrote:
>>>>>> Hi,
>>>>>> 
>>>>>> The cross-compile issue I fixed. Check following source code:
>>>>>> opal_config_asm.m4:897: [AC_MSG_ERROR([No atomic primitives available
>>>>>> for $host])])
>>>>>> 
>>>>>> It seems that checks the toolchain's tuple is one of: armv7* or armv6*
>>>>>> or armv5*. I have recompiled my toolchain and no such error occurred.
>>>>>> However, I hit another issue about fortran as configure running.
>>>>>> 
>>>>>> *** Fortran 90/95 compiler
>>>>>> checking for armv6-rpi-linux-gnueabi-gfortran...
>>>>>> armv6-rpi-linux-gnueabi-gfortran
>>>>>> checking whether we are using the GNU Fortran compiler... yes
>>>>>> checking whether armv6-rpi-linux-gnueabi-gfortran accepts -g... yes
>>>>>> checking if Fortran 77 compiler works... links (cross compiling)
>>>>>> checking armv6-rpi-linux-gnueabi-gfortran external symbol
>>>>>> convention... single underscore
>>>>>> checking if C and Fortran 77 are link compatible... yes
>>>>>> checking to see if F77 compiler likes the C++ exception flags...
>>>>>> skipped (no C++ exceptions flags)
>>>>>> checking to see if mpif77/mpif90 compilers need additional linker 
>>>>>> flags... none
>>>>>> checking if Fortran 77 compiler supports CHARACTER... yes
>>>>>> checking size of Fortran 77 CHARACTER... configure: error: Can not
>>>>>> determine size of CHARACTER when cross-compiling
>>>>>> 
>>>>>> Any hint? Thanks.
>>>>>> 
>>>>>> Eric
>>>>>> 
>>>>>> On Sat, Jan 19, 2013 at 10:08 PM, Lee Eric <openlinuxsou...@gmail.com> 
>>>>>> wrote:
>>>>>>> Any heads up? Thanks.
>>>>>>> 
>>>>>>> On Fri, Jan 18, 2013 at 5:28 AM, Jeff Squyres (jsquyres)
>>>>>>> <jsquy...@cisco.com> wrote:
>>>>>>>> On Jan 16, 2013, at 6:41 AM, Leif Lindholm <leif.lindh...@arm.com> 
>>>>>>>> wrote:
>>>>>>>> 
>>>>>>>>> That isn't, technically speaking, correct for the Raspberry Pi - but 
>>>>>>>>> it is a workaround if you know you will never actually use the asm 
>>>>>>>>> implementations of the atomics, but only the inline C ones..
>>>>>>>>> 
>>>>>>>>> This sort of hides the problem that the dedicated barrier 
>>>>>>>>> instructions were not available in ARMv6 (it used "system control 
>>>>>>>>> coprocessor operations" instead.
>>>>>>>>> 
>>>>>>>>> If you ever executed the asm implementation, you would trigger an 
>>>>>>>>> undefined instruction exception on the Pi.
>>>>>>>> 
>>>>>>>> Hah; sweet.  Ok.
>>>>>>>> 
>>>>>>>> So what's the right answer?  Would it be acceptable to use a no-op for 
>>>>>>>> this operation on such architectures?
>>>>>>>> 
>>>>>>>> --
>>>>>>>> Jeff Squyres
>>>>>>>> jsquy...@cisco.com
>>>>>>>> For corporate legal information go to: 
>>>>>>>> http://www.cisco.com/web/about/doing_business/legal/cri/
>>>>>>>> 
>>>>>>>> 
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>>> 
>>> 
>>> _______________________________________________
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>> _______________________________________________
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> 
> 
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-- 
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to: 
http://www.cisco.com/web/about/doing_business/legal/cri/


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