Error While Loading The Plugin Symbols
Contents |
here for a quick overview of the site Help Center Detailed answers to any shared library undefined symbol questions you might have Meta Discuss the workings and policies dlopen undefined symbol of this site About Us Learn more about Stack Overflow the company Business Learn more about dlsym undefined symbol hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow undefined symbol c++ is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Getting undefined symbol error while dynamic loading of shared library up vote 3 down vote favorite 1 I am getting undefined symbol error while loading library dynamically. Here is my
Dlopen C++
code snippet that generates this error : int main () { void *lib_handle = NULL; MyClass* (*create)(); void (*destroy)(MyClass*); char *error; lib_handle = dlopen ("./libshared.so", RTLD_LAZY); if (lib_handle == NULL) { fprintf(stderr, "%s\n", dlerror()); exit(1); } create = (MyClass* (*)()) dlsym(lib_handle, "create_object"); if ((error = dlerror()) != NULL) { fprintf(stderr, "%s\n", error); exit(1); } destroy = (void (*)(MyClass*)) dlsym(lib_handle, "destroy_object"); MyClass *myClass = (MyClass*) create; destroy(myClass); dlclose(lib_handle); } But when I load library simply by commenting above code and exporting library path everything works like charm. For dynamic linking I am using the following command on command prompt. g++ -Wl,--export-dynamic shared_user.cpp -ldl Any help would be appreciated. c++ linux shared-libraries dynamic-loading share|improve this question edited Apr 6 '15 at 20:32 Benjamin 11.4k1693171 asked Mar 23 '12 at 9:49 Yuvi 81121535 Ever heard the term "name mangling" ? That's what's probably happening here, you've got C++ code but are looking for an unmangled nam
See plans for: businesses photographers students Document Cloud Acrobat DC Sign Stock Elements Marketing Cloud Analytics Audience Manager Campaign Experience Manager Media Optimizer Target See all Adobe for enterprise Acrobat Reader DC Adobe Flash Player Adobe AIR Adobe Shockwave Player
Undefined Reference To Dlopen
All products Creative Cloud Individuals Photographers Students and Teachers Business Schools and Universities Marketing Cloud dlopen example Document Cloud Stock Elements All products Get Support Find answers quickly. Contact us if you need to. Start now > Learn the linux nm apps Get started or learn new ways to work. Learn now > Ask the community Post questions and get answers from experts. Start now > Adobe is changing the world through digital experiences. Our creative, marketing http://stackoverflow.com/questions/9837009/getting-undefined-symbol-error-while-dynamic-loading-of-shared-library and document solutions empower everyone — from emerging artists to global brands — to bring digital creations to life and deliver them to the right person at the right moment for the best results. About Us Newsroom Careers At Adobe Privacy Security Corporate Responsibility Customer Showcase Investor Relations Events Contact Us Home Support Support Knowledgebase Error "...while loading the plug-in 'Accessibility.api'..." when you start (Reader, Acrobat 7 Professional, Acrobat 3D on Windows) Issue When http://www.adobe.com/support/techdocs/331303.html you start Adobe Reader, Adobe Acrobat 7 Professional, or Adobe Acrobat 3D on Windows, you receive the error message, "There was an error while loading the plug-in 'Accessibility.api'. The plug-in failed to initialize." Detail The application returns additional error messages for the following plug-ins: Accessibility.api, Annots.api, DigSig.api, HTML2PDF.api, Multimedia.api, PPKLite.api. Solutions Do one of the following solutions: Solution 1: Remove all plug in files and repair Acrobat or Reader. 1. Go to Program Files\Adobe\Acrobat 7.0\Acrobat\plug_ins. 2. Select all files and folders in this folder and delete them. 3. Start the Acrobat Repair mode as in step 2 in Solution 2 below. Solution 2: Remove all copies of Acroform.api and repair Acrobat or Reader. 1. Search the system for all files named Acroform.api and delete them. 2. Start the Acrobat Repair mode to repair damaged or missing files: a. Quit Acrobat. b. Choose Start > Settings > Control Panel. c. Double-click Add Or Remove Programs. d. Select Adobe Acrobat 7.0 Professional, or Acrobat 3D, and then click Change. e. Click Next. f. In the Program Maintenance dialog box, select Repair, and then click Next. g. Click Update, and then click Finish. Background information The errors in the above plug-ins depend on the acroform.api plug-in. If there are multiple copies of the acroform.api file or other conflicting plug-ins, then
Sign in Pricing Blog Support Search GitHub This repository Watch 171 Star 2,778 Fork 519 sbt/sbt Code Issues 519 https://github.com/sbt/sbt/issues/1399 Pull requests 19 Projects 2 Wiki Pulse Graphs New issue building on JDK 8 #1399 Open eed3si9n opened this Issue Jun 5, 2014 · 7 comments Projects None https://www.open-mpi.org/faq/?category=troubleshooting yet Labels Enhancement Milestone No milestone Assignees dwijnand 7 participants sbt member eed3si9n commented Jun 5, 2014 steps try building on JDK 8 problems undefined symbol [error] sbt/compile/interface/src/main/scala/xsbt/ExtractAPI.scala:479: java.util.Comparator does not take type parameters [error] private[this] val sortClasses = new Comparator[Symbol] { [error] ^ expectations it works. eed3si9n added the Enhancement label Jun 5, 2014 sbt member jsuereth commented Jun 6, 2014 I think missed the most important failure: [error] error while loading CharSequence, class file '/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar(java/lang/CharSequence.class)' is broken [error] (bad constant error while loading pool tag 15 at byte 1501) [error] error while loading AnnotatedElement, class file '/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar(java/lang/reflect/AnnotatedElement.class)' is broken [error] (bad constant pool tag 15 at byte 2713) unless you don't see that. sbt member jsuereth commented Jun 6, 2014 Oh, also, scala prior to 2.10.4 didn't support JDK8, so we can't either for the old compiler interfaces precompiled. SO, this is related to that. Drop your precompiled Scala projects and you amy see it start working. sbt member jsuereth commented Jun 6, 2014 Final note on failure, see the fialed projectss: [error] (precompiled-2_8_2/compile:compile) Compilation failed [error] (precompiled-2_9_3/compile:compile) Compilation failed [error] (precompiled-2_9_2/compile:compile) Compilation failed dansanduleac commented Jul 1, 2014 I should note that building sbt -- well, at least the testing/agent project -- on anything greater than jdk 1.6 results in not being able to fork tests with an older jdk than that which was used to compile sbt, and looks like (note how the tests even succeed in this case): Internal error when running tests: j
 Sysadmin information  Fault Tolerance Building  Building Open MPI  Compiling MPI apps Running Jobs  Running MPI jobs  Troubleshooting  Parallel debugging  rsh/ssh  BProc  Torque / PBS Pro  SLURM  SGE  Large clusters Tuning  General tuning  Shared memory/Vader  TCP  Myrinet  OpenFabrics  UDAPL  Performance tools  OMPIO Platform  OS X  AIX (unsupported) Contrib  VampirTrace Languages  Java CUDA-aware  Building CUDA-aware  Running CUDA-aware Videos Performance Open MPI Software Download Documentation Source Code Access Bug Tracking Regression Testing Version Information Sub-Projects Hardware Locality Network Locality MPI Testing Tool Open MPI User Docs Open Tool for Parameter Optimization PMIx Community Mailing Lists Getting Help/Support Contribute Mirrors Contact License Table of contents: Open MPI tells me that it fails to load components with a "file not found" error -- but the file is there! Why does it say this? I see strange messages about missing symbols in my application; what do these mean? What is mca_pml_teg.so? Why am I getting warnings about not finding the mca_ptl_base_modules_initialized symbol from it? Can I build shared libraries on AIX with the IBM XL compilers? Why am I getting a seg fault in libopen-pal (or libopal)? Why am I getting seg faults / MPI parameter errors when compiling C++ applications with the Intel 9.1 C++ compiler? All my MPI applications segv! Why? (Intel Linux 12.1 compiler) Why can't I attach my parallel debugger (TotalView, DDT, fx2, etc.) to parallel jobs? When launching large MPI jobs, I see messages like: mca_oob_tcp_peer_complete_connect: connection failed: Connection timed out (110) - retrying How do I find out what MCA parameters are being seen/used by my job? 1. Open MPI tells me that it fails to load components with a "file not found" error -- but the file is there! Why does it say this?
Open MPI loads a lot of plugins at run time. It opens its plugins via the excellent GNU Libtool libltdl portability library. If a plugin fails to load, Open MPI queries libltdl to get a printable string indicating why the plugin failed to load. Unfortunately, there is a well-known bug in libltdl that may cause a "file not found" error message to be displayed, even when the file is