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Questions tagged [dynamic-library]

Compiled binaries capable to be loaded in the process address space in runtime.

Dynamic Libraries are compiled binaries capable of being loaded/unloaded into/from the process address space at runtime.

In the Unix world, they are called shared libraies; in the Windows world, they are known as DLLs (dynamically-loadable libraries).

They can be loaded simultaneously into multiple processes, saving RAM and disk space.

Their file format is similar to, or even the same as, that of binary executables.

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How to call a class and its function present in so file from a C++ program in Linux

Possible Duplicate: C++ Dynamic Shared Library on Linux I am writing a shared object say libtest.so which has a class and a function. I have another program say "Program.cpp" from which i want to call the class and its function present in the…
Mahesh
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Shared library _sqlite3.so not found when importing sqlite3 on Python 2.6.6

Okay i've been battling for this for 2 days, that usually means its something too simple to realize. I have an embedded linux system which I cross compile on my ubuntu. When compiling python, sqlite3 is not on the list of modules that have not been…
Gjordis
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How to compile a c++ program into shared library, and load it from a c program?

I am using gnu c compiler on centos 6, and the c program loads the shared library in the code dynamically.
Mickey Shine
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C++ Qt: Static builds and external dylibs

I've been doing some funny stuff in personal projects with Qt. I'm not an expert in this so if it's a dumb question (guess not I couldn't find anything useful) feel free to kill me. Anyway, I'm in OSX and usually I compile the final versions…
TCB13
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Creating and using dynamic libraries in OS X

We have a Windows application written in C++, part of which we are trying to port to Mac OS X. Our goal is to wrap the business logic into some libraries and build a Cocoa layer on top for the controller and the GUI. We will probably have several…
pajevic
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C++ Dependency injection with Dynamic library loading

I am unable to use C++ dependency injection library "boost::di" with another boost library for dynamic loading of libraries named "Boost.dll". I broke down the problem into two parts - firstly, Testing dynamic loading, and secondly, binding the…
Sukhdeep Singh
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Thick binding dynamic library: Undefined references

What I did so far on my Linux Mint system: Write a thin binding to the GSL library Write a thick binding based on the thin binding Write a test program for 1. Write a test program for 2. When I create static libraries, everything works fine. When…
hreba
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Lifecycle of a shared library?

I've found multiple posts describing in detail the differences between static and shared libraries; however, I have yet to see an overarching view on when the shared library is loaded, what goes on here, and when the library is unloaded. Especially…
Anthony Lam
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Not able to use function from my dynamic library loaded via LD_PRELOAD

I am trying to use sscanf() from preload.so which is generated from preload.c. To check my sscanf() from preload.so is called, I added extra print statement: printf("test\n"); Is there something I am missing? Files content mentioned…
Ami
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How to set CMAKE_INSTALL_RPATH with multiple directories?

On the question CMAKE RPATH not working - could not find shared object file I see how to set CMAKE_INSTALL_RPATH for a single path, but I need it for multiple paths. I tried these using but I did not worked: SET( CMAKE_INSTALL_RPATH…
Evandro Coan
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When to use dynamic linking library in iOS ? And what is advantage of using dynamic library in iOS?

I feel weird about difference between advantage of dynamic linking library in Window or Linux and iOS. ⬇️ sentences below are to prove why I feel weird. I learned that library can divided into static library and dynamic library Advantage of using…
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MSBuild does not match Visual Studio when referencing an indirectly referenced DLL

I apologize for asking this question, but I'm pretty sure the answer is "MSBuild is dumb, VS is smart". An indirectly referenced DLL is a DLL that is referenced from a directly referenced DLL but not referenced in the project at all. I have project…
BradLaney
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Missing dependencies but application still runs on Mac M1

I'm using a Mac M1 with arm64 chip and I have an executable that depends on different .dylibs located in /usr/lib. These are: libc++.1.dylib, libSystem.b.dylib and libobjc.A.dylib. I got these results by doing otool -L myExecutable. Since I'm trying…
Luis Angel Urena Lopez
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Check library built flags or options (-frecord-gcc-switches)

I'd like to check the library under investigation what flags and options were built with? I'm trying to use gcc compiler with option -frecord-gcc-switches to understand on my simple shared library but with no luck. The following is the piece of…
user3428154
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Undefined symbol: fstat in dynamic library

I'm writing a dynamic library that's loaded at runtime as a plugin. At runtime, the library fails to load with the following message: dlerror:/path/to/so: undefined symbol: fstat The dynamic library consists of a bunch of static libraries linked…
leecbaker
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