shared-libraries

问题 I am trying to create .so dynamic library from *.o files and facing below issue. LOG: [nptemp-static]$ gcc -shared *.o -o libexample.so /usr/bin/ld: bindings_hubbub_parser.o: relocation R_X86_64_32 against `.rodata.str1.8' can not be used when making a shared object; recompile with -fPIC bindings_hubbub_parser.o: could not read symbols: Bad value collect2: ld returned 1 exit status Any idea? Do I need to recompile my whole source code with the option specified? Actually, I am not aware of the

问题 NOTE it's not a duplicate of this question or this question. How to build Googletest from source using g++ into a shared library (.so)? I tried the steps described in Google Test's document on how to build a shared library, but linking the produced libgtest.so with my test programs didn't work - the linker throws tons of errors like: "gtest-all.cc:(.text+0x19b50): multiple definition of `testing::internal::HasNewFatalFailureHelper::~HasNewFatalFailureHelper()'libgtest.so:gtest-all.cc:(.text

问题 I am writing a plugin system which is separated other 3 modules: plugin_system.c - the core of the system list.c - contains a linked list implementation for plugins' storage plugin_interface.h - contains the declaration needed by plugins, has no source file associated with plugin_interface.h only contains only of types and the function: extern int plugin_register(PluginManager *plug_manager, const char *name, Plugin *plug); which is defined in plugin_system.c When loading a plugin, the plugin

问题 I am porting my application to WebLogic as an Enterprise Library so that my EJB and MDB can invoke code in it. I have chosen a EAR packaging for both say Lib1.ear and Lib2.ear which contains APP-INF/lib directory and have 100's of jars in both. I also have updated the MANIFEST.MF of both to contains Specification-Version and Implementation-Version . Both are deployed successfully and available to be used. Now I updated my ear which contains my EJB and MDB and added following in weblogic

问题 These docs have a nice example on how to compile some external C/C++ code and load this using ctypes. This works great with manual compilation (where i'm controlling the names of my library which later gets loaded). Now how to prepare some code to be used within scipy with full incorporation into scipy's build-system? A more general github-issue does not provide the information i'm looking for (and sadly, there is not much action). Also: i'm more interested in using ctypes (no real usage

问题 I'm trying to use MongoDB Mobile (beta) in my Android app. I've folowed the steps as described here This is the code that is executed: final StitchAppClient client = Stitch.initializeDefaultAppClient("<APP ID>"); final MongoClient mobileClient = client.getServiceClient(LocalMongoDbService.clientFactory); the first line works but when the second line is executed the app crashes with this error: com.mongodb.embedded.client.MongoClientEmbeddedException: Failed to load the mongodb library: 'mongo

问题 I am using the SMTP Client project to create a library file (.dll) on Windows. Everything works fine and e-mails are sent successfully. I want to port my Qt project to Android and since Android is a different architecture I need to build the library using a Android armv7 toolkit. I try this, but I get error: Internal Error: Unknown Android deployment JSON file location. Error while building/deploying project SMTPEmail (kit: Android for armeabi-v7a (GCC 4.9, Qt 5.4.2)) When executing step

问题 Hello I am running Linux Ubuntu and am compiling using icpc (intel compiler), I want to get a shared library so I used the command: icpc -o myShared.so -std=c++11 -shared -DSTDC_HEADERS -D __cplusplus=201103L -fpermissive -DPT_XX_DEV -fexceptions -frtti -DANDROID -w -fstack-protector -fPIE -fPIC -pie -O2 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -I/home/admins/aaa/include -I/home/admins/bbb/include a.cpp b.cpp c.cpp -lpthread -L./../../static_libs -lmyStatic I an getting a warning: ld:

问题 When I build a shared library "mylib.so" from a source file "secret.cc", the resulting shared object contains the source filename: ... do_global_ctors_aux^@secret.cc^@__DTOR_END ... But I don't want to divulge the name of that file ("secret.cc") to the users of my library. Is there a way to strip the filename information from the shared object, or to prevent it from being inserted in the first place? 回答1: It's quite simple: Don't let the compiler know the source's filename from the very

问题 I create shared library libpl.so . I use this command to create connections: ln -s libpl.so.1.0.1 libpl.so.1 ln -s libpl.so.1.0.1 libpl.so And now I try to compile my program using: gcc main.c -o main -L. -libpl but I have erros: /usr/bin/ld: cannot find -libpl collect2: error: ld returned 1 exit status What should I do to fix it ? How compile it ? 回答1: This line should help: export LD_LIBRARY_PATH=/path/to/libpl.so:$LD_LIBRARY_PATH You should follow this tutorial on shared libraries on linux