Yay, it works!
Thank you, Basti and Marcus :)
So the only change I needed to make for my build system is to find the
first target_link_libraries() under lib/CMakeLists.txt and add both
${GNURADIO_ALL_LIBRARIES} and uhd to the list (both are required). I did
not have to add anything to the link list of the test project, nor did I
have to add UHD to the GR_REQUIRED_COMPONENTS list in the root
CMakeLists.txt.
Thanks again!
On Wed, Jun 20, 2018 at 3:00 PM Müller, Marcus (CEL) <muel...@kit.edu>
wrote:
> Basti applied hammer to nail's head. It's (probably) super effective.
>
> yeah... time_spec_t's functions aren't exported symbols of libgnuradio-
> uhd, but of libuhd! This might work on some and not on other build
> systems due to different handling of visibility of symbols *used* in a
> library. uff!
>
> On Wed, 2018-06-20 at 11:04 +0100, Bastian Bloessl wrote:
> > Any chances you are confusing libgnuradio-uhd.so with libuhd.so. To me
> > it sounds like you want to link against the latter.
> >
> > Maybe some linkers resolve symbols from libuhd through libgnuradio-uhd
> > and some don't (which might make sense if you do not use any symbols
> > defined in libgnuradio-uhd).
> >
> > Best,
> > Bastian
> >
> > On 6/19/2018 13:27, Gilad Beeri (ApolloShield) wrote:
> > > The MESSAGE directive shows it should be ok - added to
> > > lib/CMakeLists.txt, after the first target_link_libraries(), the line
> > > "MESSAGE(STATUS "DEBUG GR LIBS: ${GNURADIO_ALL_LIBRARIES}")".
> > >
> > > The output:
> > > /
> > > /
> > > /-- DEBUG GR LIBS:
> > >
> /home/user/gr/lib/libgnuradio-runtime.so;/home/user/gr/lib/libgnuradio-pmt.so;/usr/lib/liblog4cpp.so;/home/user/gr/lib/libgnuradio-filter.so;/home/user/gr/lib/libgnuradio-fft.so;/home/user/gr/lib/
> libgnuradio-uhd.so/
> > > /
> > > /
> > > I moved away all cmake/ files and then put them back one-by-one until
> > > the build succeeded, which meant I ended up removing:
> > > D cmake/Modules/CMakeParseArgumentsCopy.cmake
> > > D cmake/Modules/FindGnuradioRuntime.cmake
> > > D cmake/Modules/GrMiscUtils.cmake
> > > D cmake/Modules/GrPython.cmake
> > > D cmake/Modules/GrSwig.cmake
> > > D cmake/Modules/GrTest.cmake
> > > D cmake/Modules/UseSWIG.cmake
> > >
> > > but still no luck (the undefined symbol error still exists).
> > >
> > > It might be worth to mention, the version I use is 3.7.11.1.
> > >
> > >
> > > On Tue, Jun 19, 2018 at 2:47 PM Müller, Marcus (CEL) <muel...@kit.edu
> > > <mailto:muel...@kit.edu>> wrote:
> > >
> > > add a "message ()" directive that prints the GNURADIO_ALL_LIBRARIES
> > > that is actually used in your lib/CMakeLists.txt. If that is wrong:
> > >
> > > Move your OOT's cmake/Modules/* out of the way – I do not endorse
> the
> > > fact that we're distributing copies of all the GNU Radio CMake
> scripts
> > > with our OOT template, as these might outdate locally.
> > >
> > > I must admit I don't have an OOT where I test gr-uhd linkage
> myself.
> > >
> > > Best regards,
> > > Marcus
> > >
> > > On Tue, 2018-06-19 at 14:42 +0300, Gilad Beeri (ApolloShield)
> wrote:
> > > > I've done "rm -rf build/*" and "pushd build; cmake ../; and
> make
> > > -j7; and make install; popd" ~ 50 times since yesterday :)
> > > >
> > > > Any suggestions for debugging it?
> > > >
> > > > On Tue, Jun 19, 2018 at 2:33 PM Müller, Marcus (CEL)
> > > <muel...@kit.edu <mailto:muel...@kit.edu>> wrote:
> > > > > I must admit this is surprising to me, as the line of code
> where
> > > > > LIBS=... is printed is pretty integrally coupled to the line
> that
> > > > > specifies what GNURADIO_ALL_LIBRARIES is. Maybe CMake got
> confused?
> > > > > I know this is kind of a "haveyoutriedturningitoffandonagain"
> > > answer,
> > > > > but have you tried completely rm'ing your build/ directory and
> > > letting
> > > > > CMake run anew?
> > > > >
> > > > > Best regards,
> > > > > Marcus
> > > > >
> > > > > :e ../cmake/Modules/FindG On Tue, 2018-06-19 at
> > > 14:19 +0300,
> > > > > Gilad Beeri (ApolloShield) wrote:
> > > > > > I have a similar problem as described in
> > >
> https://lists.gnu.org/archive/html/discuss-gnuradio/2015-05/msg00195.html.
> > > > > >
> > > > > > When I try to run tests (with Python), I get:
> > > > > >
> > > > > > Traceback (most recent call last):
> > > > > > File "python/myblock.py", line 12, in <module>
> > > > > > from myproj.myproj_swig import mitigation_source
> > > > > > File
> > > "/home/user/gr/lib/python2.7/site-packages/myproj/myproj_swig.py",
> > > line 28, in <module>
> > > > > > _myproj_swig = swig_import_helper()
> > > > > > File
> > > "/home/user/gr/lib/python2.7/site-packages/myproj/myproj_swig.py",
> > > line 24, in swig_import_helper
> > > > > > _mod = imp.load_module('_myproj_swig', fp, pathname,
> > > description)
> > > > > > ImportError:
> > > /home/user/gr/lib/libgnuradio-myproj-1.0.0git.so.0.0.0: undefined
> > > symbol: _ZN3uhd11time_spec_tC1Eld
> > > > > >
> > > > > >
> > > > > > I did add "UHD" to the line starting with
> > > "set(GR_REQUIRED_COMPONENTS" (in my root CMakeLists.txt) so I get
> > > the output of
> > > > > >
> > > > > > Checking for GNU Radio Module: UHD
> > > > > > -- Checking for module 'gnuradio-uhd'
> > > > > > -- Found gnuradio-uhd, version 3.7.11.1-as
> > > > > > * INCLUDES=/home/user/gr/include
> > > > > > *
> > >
>
> LIBS=/home/user/gr/lib/libgnuradio-uhd.so;/home/user/gr/lib/libgnuradio-runtime.so;/home/user/gr/lib/libgnuradio-pmt.so;/usr/lib/liblog4cpp.so
> > > > > > -- Found GNURADIO_UHD:
> > >
>
> /home/user/gr/lib/libgnuradio-uhd.so;/home/user/gr/lib/libgnuradio-runtime.so;/home/user/gr/lib/libgnuradio-pmt.so;/usr/lib/liblog4cpp.so
> > >
> > > > > > GNURADIO_UHD_FOUND = TRUE
> > > > > >
> > > > > > I also have in my lib/CMakeLists.txt file
> > > ${GNURADIO_ALL_LIBRARIES} in both target_link_libraries() lists.
> > > > > >
> > > > > > I have "#include <uhd/types/time_spec.hpp>" in my header
> file.
> > > > > >
> > > > > > But for some reason, it doesn't seem to link gnuradio-uhd:
> > > > > >
> > > > > > readelf -d
> /home/user/gr/lib/libgnuradio-myproj-1.0.0git.so.0.0.0
> > > > > >
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [libboost_system.so.1.58.0]
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [libgnuradio-runtime-3.7.11.1-as.so.0.0.0]
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [libgnuradio-pmt-3.7.11.1-as.so.0.0.0]
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [liblog4cpp.so.5]
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [libgnuradio-filter-3.7.11.1-as.so.0.0.0]
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [libstdc++.so.6]
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [libm.so.6]
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [libgcc_s.so.1]
> > > > > > 0x0000000000000001 (NEEDED) Shared library:
> > > [libc.so.6]
> > > > > > 0x000000000000000e (SONAME) Library soname:
> > > [libgnuradio-myproj-1.0.0git.so.0.0.0]
> > > > > > _______________________________________________
> > > > > > Discuss-gnuradio mailing list
> > > > > > Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org>
> > > > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> > >
> > >
> > >
> > > _______________________________________________
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> > > Discuss-gnuradio@gnu.org
> > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> > >
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