User needs different libraries than what come with the default python install such as math and physics libraries. An expensive jump with GCC 5.4.0 Aligning texts side by side with equations in \align environment What is this strange biplane jet aircraft with tanks between wings? This GDB was configured as "x86_64-linux-gnu". It's better to tell the linker where that other library lives and to build that path into the library. navigate here
What happens, nm -D child.so will gives something like (I just changed the names) U _ZN12PARENT15virtualFunctionEv The program will crash running _handle = dlopen(filename, RTLD_NOW|RTLD_GLOBAL); //filename is child.so it'll give an Product Security Center Security Updates Security Advisories Red Hat CVE Database Security Labs Keep your systems secure with Red Hat's specialized responses for high-priority security vulnerabilities. Your stuff just works. You can check which version of libpython gdb will use using the following command: ldd /usr/bin/gdb Kind regards, Erik share|improve this answer edited Jun 3 '15 at 5:05 chrisb2244 1034 answered
Is any information missing for linking here? commands aren't available. (Undefined command: "py-bt". You've specified that your libchild.so depends on libparent.so. User attempts to run gdb, it fails to run and is not obvious as to why. > gdb hello gdb: symbol lookup error: gdb: undefined symbol: PyUnicodeUCS4_FromEncodedObject Environment Red Hat Enterprise
share|improve this answer answered Jan 6 '14 at 13:51 Stuart Berg 4,33152351 Quick followup: For some reason, I have to load the module python-2.7.6/Tools/gdb/libpython.py (from the downloaded tarball) to or not necessary? –Derek Oct 18 '12 at 1:28 What is your build command for the main program? –imreal Oct 18 '12 at 1:31 -1 for you Why does Davy Jones not want his heart around him? Undefined Symbol Pyunicodeucs2_fromencodedobject Display a Digital Clock TV episode or movie where people on planet only live a hundred days and fall asleep at prescribed time How can I stun or hold the whole
Then compile with something like this: g++
Affecting: shotwell (Ubuntu) Filed here by: Oddgeir Kvien When: 2011-01-29 Completed: 2011-01-31 Target Distribution Baltix BOSS Juju Charms Collection Elbuntu Guadalinex Guadalinex Edu Kiwi Linux nUbuntu PLD Linux Tilix tuXlab Ubuntu Dlopen Home Qt Development QML and Qt Quick QML remote debugging doesn't work - symbol lookup error, undefined symbol QML remote debugging doesn't work - symbol lookup error, undefined symbol This topic A couple of gotchas: If you aren't naming those libraries with a lib prefix you will confuse the linker big time. Code blocks~~~ Code surrounded in tildes is easier to read ~~~ Links/URLs[Red Hat Customer Portal](https://access.redhat.com) Learn more Close Navigation Qt Forum Login Search Search Categories Recent Tags Popular Groups Search Your
Any alternative?4Getting undefined symbol error while dynamic loading of shared library3Shared library SIGSEGV on dlopen / static init when calling @plt function0why the DSO was loaded at address 01shared library plugin asked 4 years ago viewed 2289 times active 4 years ago Visit Chat Related 8Segfault on C++ Plugin Library with Duplicate Symbols3Can I access to symbols of the host proccess from Gdb Undefined Symbol: Pyunicodeucs4_fromencodedobject Current Customers and Partners Log in for full access Log In New to Red Hat? C++ Symbol Lookup Error Cause the non-QML application remote debugging on the embedded device already works in contrast!
Changed in shotwell (Ubuntu): status: New → Invalid See full activity log To post a comment you must log in. check over here I have to test it by myself on my board. built with "--enable-unicode=ucs4" worked. Issue User sets PYTHONHOME in their environment to point at a non standard python location. C++filt
The path I intended the executable to find it's needed shared library was in the LD_LIBRARY_PATH, it just wasn't before a different path which had an older version of the needed Looks like child is only including parent's header file. Not the answer you're looking for? http://mmonoplayer.com/symbol-lookup/awk-symbol-lookup-error-awk-undefined-symbol-mpfr-z-sub.html That's the point of dlopen and dlsym. –David Hammen Oct 18 '12 at 4:21 @DavidHammen it is not necessary to load a shared object explicitly at runtime with dlopen.
Is the new Boost 1.48.0p1 (instead of 1.48.0) only on slc6 as defined in http://lcgcmt.cvs.cern.ch/cgi-bin/lcgcmt.cgi/lcgcmt/LCG_Configuration/cmt/requirements.diff?r1=1.396&r2=1.397 ? Any help is appreciated! Is it unethical to take a photograph of my question sheets from a sit-down exam I've just finished if I am not allowed to take them home?
http://visualgdb.com/gdbreference/commands/set_solib-search-path Reply Quote 0 taferl last edited by Hi Juergen_M, thanks for that info. Now, Boost 1.48p1 is built on the python we built with UCS4 support, so there are no UCS2 missing references. Many thanks in advance! You do this when you are creating the child library: g++ -shared -o libchild.so child_file1.o child_file2.o -Lparent_directory -lparent Note that order is important.
similar to ldd.) Posted by Greg at 12:30 PM 10 comments: trinity said... Or am I missing farther? –Derek Oct 18 '12 at 17:53 And although I'm no Linux guru, but the system I'm adding stuff into is quite complicated. Report a bug This report contains Public information Edit Everyone can see this information. If LD_LIBRARY_PATH contains another version of libpython, gdb may link in the wrong version causing the symbol error.
Join them; it only takes a minute: Sign up When look up symbol, the program doesn't search from the correct library up vote 3 down vote favorite I'm adding two classes What about libparent.so?