dynamic-linking

问题 I understand pros and cons of static and dynamic linking. But what is the benefit of Import Library? 回答1: As it is stated in this answer import library (a.k.a. stub library) is useful when one wants to link executable dynamically but do not want to mess with LoadLibrary and GetProcAddress functions. 来源： https://stackoverflow.com/questions/39401403/import-library-benefit

问题 My situation is I have a library that doesn't have a "lib" prefix. I'd like to link against it, and I can't recompile it (it's actually a Python module). Now, if you use the '-l' flag with GCC or clang, then the lib prefix is automatically added and the library is not found. For GCC, I can use '-l:mylib.so' to get it to link against an arbitrary file. However, this doesn't work for clang. Is it possible to get clang to link against a particular library without the 'lib' prefix? 回答1: This

问题 I am compiling a program against a shared library I have written. This library in turn relies on Boost::program_options (among other libraries). When I compile my program, I need of course to mention my library, but I get a DSO error: g++ ism_create_conf.cc -o ism_create_conf -lglsim_ol -lglsim -lhdf5 -lgsl /usr/bin/ld.real: /tmp/cc9mBWmM.o: undefined reference to symbol_ZN5boost15program_options8validateERNS_3anyERKSt6vectorISsSaISsEEPSsi' //usr/lib/x86_64-linux-gnu/libboost_program_options

问题 I have mylib.c file which has some functions. I want to use those functions from my .c file as external ones in compiled llvm code. I'm playing with LLVM interpreter ( lli-4.0 ) and I wonder how can I tell lli to use functions from my .c file? 回答1: lli has a -load argument so you compile your C file to a dynamic library and then just do lli -load path-to-your-dynamic-library .... 来源： https://stackoverflow.com/questions/44189232/how-to-run-llvm-interpreter-with-a-shared-library

问题 I'm used to thinking of all initialization of globals/static-class-members as happening before the first line of main(). But I recently read somewhere that the standard allows initialization to happen later to "assist with dynamic loading of modules." I could see this being true when dynamic linking: I wouldn't expect a global initialized in a library to be initialized before I dlopen'ed the library. However, within a grouping of statically linked together translation units (my app's direct

问题 Basically I know we can use this to create a static linked exe on windows 32 bit: nasm -fwin32 test.s cl.exe test.obj /link libcmt.lib But how to create a dynamic-linked exe from the obj file nasm generated? 来源： https://stackoverflow.com/questions/21010335/how-to-use-nasm-to-generate-a-dynamic-linked-exe-on-windows

问题 Hi I want to call functions from a C dll to C++/CLI. The C functions are declared extern. I followed this tutorial for linking the dll: http://social.msdn.microsoft.com/Forums/en/Vsexpressvc/thread/84deabaa-ae82-47cc-aac0-592f5a8dfa22 and then in my C++/CLI dll I have the following: // testWrapper.h #pragma once using namespace System; namespace testWrapper { extern "C" int GtoCalcImpliedVolatility2( double premium, int optionType, double underPrice, double strike, double yearsToExpiry,

问题 I read that you can use the dynamic linker API using dlfcn.h Here's a code example using the API #include <stdio.h> #include <stdlib.h> #include <dlfcn.h> int x[2]={1,2}; int y[2]={3,4}; int z[2]; int main(){ void *handle; void(*addvec)(int *,int *,int *,int); char *error; // Dynamically load shared library that contains addvec() handle=dlopen("./libvec.so",RTLD_LAZY); if(!handle){ fprintf(stderr,"%s\n",dlerror()); exit(1); } // Get a pointer to the addvec() function we just loaded addvec

问题 I would like to create a dynamic library for c++ program on linux. In c++ program/system I`m using libconfig++ library, libpqxx library, some boost and c++11. My steps: 1) g++ -Wall -I/usr/local/include/ -std=c++0x -lconfig++ -Wall -lpqxx -lpq -fPIC -c ../SourceFiles/DBHandler.cpp ../SourceFiles/ParamServer.cpp ../SourceFiles/Functions.cpp 2) g++ -shared -Wl,-soname,libctest.so.1 -o libctest.so.1.0 *.o 3) ln -sf libctest.so.1.0 libctest.so.1 4) ln -sf libctest.so.1.0 libctest.so 5) compile g+

问题 I'm building a library that needs to be dynamically linked to my project. The output is a .so file, so I think I'm on the right track. I'm concerned by the way it's being linked at compile time - by specifying the location of its makefile and depending on a bunch of macros, which I've never encountered before. Can I assume that since I'm building a .so library (rather than a .a) that I'm in fact dynamically linking? Or is it possible for .so libs to be statically linked, in which case I need