HI Adam, I think you'll have better luck setting the CFLAGS on the configure line.
try ./configure CFLAGS="-g -O0" your other configury options. Howard 2018-05-04 12:09 GMT-06:00 Moody, Adam T. <mood...@llnl.gov>: > Hi Howard, > > I do have a make clean after the configure. To be extra safe, I’m now > also deleting the source directory and untarring for each build to make > sure I have a clean starting point. > > > > I do get a successful build if I add --enable-debug to configure and then > do a simple make that has no CFLAGS or LDFLAGS: > > > > make -j VERBOSE=1 > > > > So that’s good. However, looking at the compile lines that were used, I > see a -g but no -O0. I’m trying to force the -g -O0, because our debuggers > show the best info at that optimization level. > > > > If I then also add a CFLAGS=”-g -O0” to my make command, I see the “-g > -O0” in the compile lines, but then the pthread link error shows up: > > > > make -j CFLAGS=”-g -O0” VERBOSE=1 > > > > CC opal_wrapper.o > > GENERATE opal_wrapper.1 > > CCLD opal_wrapper > > ../../../opal/.libs/libopen-pal.so: undefined reference to > `pthread_atfork' > > collect2: error: ld returned 1 exit status > > make[2]: *** [opal_wrapper] Error 1 > > > > Also setting LDFLAGS fixes that up. Just wondering whether I’m going > about it the right way in trying to get -g -O0 in the build. > > > > Thanks for your help, > > -Adam > > > > *From: *users <users-boun...@lists.open-mpi.org> on behalf of Howard > Pritchard <hpprit...@gmail.com> > *Reply-To: *Open MPI Users <users@lists.open-mpi.org> > *Date: *Friday, May 4, 2018 at 7:46 AM > *To: *Open MPI Users <users@lists.open-mpi.org> > *Subject: *Re: [OMPI users] Debug build of v3.0.1 tarball > > > > HI Adam, > > > > Sorry didn't notice you did try the --enable-debug flag. That should not > have > > led to the link error building the opal dso. Did you do a make clean after > > rerunning configure? > > > > Howard > > > > > > 2018-05-04 8:22 GMT-06:00 Howard Pritchard <hpprit...@gmail.com>: > > Hi Adam, > > > > Did you try using the --enable-debug configure option along with your > CFLAGS options? > > You may want to see if that simplifies your build. > > > > In any case, we'll fix the problems you found. > > > > Howard > > > > > > 2018-05-03 15:00 GMT-06:00 Moody, Adam T. <mood...@llnl.gov>: > > Hello Open MPI team, > > I'm looking for the recommended way to produce a debug build of Open MPI > v3.0.1 that compiles with “-g -O0” so that I get accurate debug info under > a debugger. > > So far, I've gone through the following sequence. I started with > CFLAGS="-g -O0" on make: > > shell$ ./configure --prefix=$installdir --disable-silent-rules \ > > --disable-new-dtags --enable-mpi-cxx --enable-cxx-exceptions --with-pmi > > shell$ make -j CFLAGS="-g -O0" VERBOSE=1 > > That led to the following error: > > In file included from ../../../../opal/util/arch.h:26:0, > > from btl_openib.h:43, > > from btl_openib_component.c:79: > > btl_openib_component.c: In function 'progress_pending_frags_wqe': > > btl_openib_component.c:3351:29: error: 'opal_list_item_t' has no member named > 'opal_list_item_refcount' > > assert(0 == frag->opal_list_item_refcount); > > ^ > > make[2]: *** [btl_openib_component.lo] Error 1 > > make[2]: *** Waiting for unfinished jobs.... > > make[2]: Leaving directory `.../openmpi-3.0.1/opal/mca/btl/openib' > > So it seems the assert is referring to a field structure that is protected > by a debug flag. I then added --enable-debug to configure, which led to: > > make[2]: Entering directory `.../openmpi-3.0.1/opal/tools/wrappers' > > CC opal_wrapper.o > > GENERATE opal_wrapper.1 > > CCLD opal_wrapper > > ../../../opal/.libs/libopen-pal.so: undefined reference to `pthread_atfork' > > collect2: error: ld returned 1 exit status > > make[2]: *** [opal_wrapper] Error 1 > > make[2]: Leaving directory `.../openmpi-3.0.1/opal/tools/wrappers' > > Finally, if I also add LDFLAGS="-lpthread" to make, I get a build: > > shell$ ./configure --prefix=$installdir --enable-debug --disable-silent-rules > \ > > --disable-new-dtags --enable-mpi-cxx --enable-cxx-exceptions --with-pmi > > shell$ make -j CFLAGS="-g -O0" LDFLAGS="-lpthread" VERBOSE=1 > > Am I doing this correctly? > > Is there a pointer to the configure/make flags for this? > > I did find this page that describes the developer build from a git clone, > but that seemed a bit overkill since I am looking for a debug build from > the distribution tarball instead of the git clone (avoid the autotools > nightmare): > > https://www.open-mpi.org/source/building.php > > Thanks. > > -Adam > > > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users > > > > > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users >
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