dynamic-loading Questions

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What exactly does -rdynamic (or --export-dynamic at the linker level) do and how does it relate to symbol visibility as defined by the -fvisibility* flags or visibility pragmas and __attribute__s? ...
Wappes asked 18/4, 2016 at 11:11

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I have a spring boot application which has two functionalities Http requests and kafka Messages handling. I want this application to run in mode which is enabled from application.yml i.e if the use...

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What I'm trying to do is to convert this installing script for webodm (https://gist.github.com/lkpanganiban/5226cc8dd59cb39cdc1946259c3fea6e) written in bash to be used in tcsh shell under a freena...
Voiceful asked 13/3, 2019 at 15:4

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I have gone through the Shared libraries with GCC on Linux documentation to understand how to create and use shared library. Step 1: Compiling with Position Independent Code $ gcc -c -Wall -Werror ...
Cuneate asked 7/8, 2020 at 17:36

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I'd like to understand a detail of how the dynamic loader creates mappings for ELF segments. Consider a tiny shared library linked with GNU ld. The program headers are: Type Offset VirtAddr Phys...
Moonier asked 15/6, 2020 at 12:28

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I'm creating Angular code at runtime, in particular, I use a SVG library in order to create a vector graphic that contains Angular code directives like (click)='myMethod()', which, in turn, call me...
Betterment asked 10/4, 2020 at 9:58

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I keep getting the following error when attempting to install readxl or haven in R (both dependencies of tidyverse) post-compilation, when the installer runs the loading test: ** testing if instal...
Crimmer asked 14/7, 2017 at 22:36

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If I open a library using dynamic loading in C++, can I later reload an updated version of that same library? I would test this myself, but I am curious about it's feasibility before I start lookin...
Pegpega asked 17/1, 2013 at 4:2

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I am using firebase topic subscription to push notifications in my Electron app. As of now I am hardcoding all the config properties like authorization key, topic, senderId etc in my app. Is there ...

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In JDBC, I only see examples using Class.forName("com.mysql.jdbc.Driver", true, cl); and haven't seen one using import com.mysql.jdbc.Driver; Is it because we want to let a driver packa...
Gibbous asked 10/6, 2018 at 15:4

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I have defined an abstract BaseClass in a NodeJS Typescript project and I have a list of derived classes that implement and extend this BaseClass. // baseModule.ts export abstract class BaseClass ...
Occupation asked 25/5, 2018 at 17:3

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I have an application a part of which uses shared libraries. These libraries are linked at compile time. At Runtime the loader expects the shared object to be in the LD_LIBRARY_PATH , if not found...
Begum asked 1/7, 2009 at 5:5

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I have a bunch of objects created from classes imported with module = imp.load_source(packageName, packagePath) that I need to pickle. It all works perfectly, as long as packagePath is directly ...
Chariot asked 15/6, 2017 at 6:43

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When you dlopen() a shared object, is there a mechanism for having code in that DLL execute without being called explicitly? Specifically, C++ static initialization code for globals/statics which t...

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I have a listview which is fetching data from sqlite database by Json. I want to turn it into dynamic listview that at the end of scroll, a "load more items" appears in the footer of the list whil...
Bandore asked 6/5, 2013 at 12:37

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I experience a crash when I pass a null pointer to dlclose. Should I check for null before calling dlclose? POSIX tells nothing about this: http://pubs.opengroup.org/onlinepubs/7908799/xsh/dlclos...

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I used readelf --dyn-sym my_elf_binary | grep FUNC | grep UND to display the dynamically imported functions of my_elf_binary, from the dynamic symbol table in the .dynsym section to be precise. ...
Subsolar asked 15/5, 2015 at 16:43

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I've been playing around with the plugins package. I want a host application to dynamically compile and load Haskell source files in a sandboxed environment. Compilation works just fine. Loading fa...
Richart asked 25/3, 2015 at 17:47

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If my executable calls dlopen to load a library but neglects to call dlclose, the library will stay loaded until the process exits and the OS forces it to unload. If I load a.so which loads b.so, ...
Twopenny asked 14/1, 2015 at 20:21

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I am trying to load and execute module dynamically, Below is my code TestModule.hs module TestModule where evaluate = "Hello !!!" Invoke.hs module Invoke where import GHC import DynFlags ...
Actino asked 5/4, 2013 at 2:4

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Analyzing this question I found out some things about behavior of weak symbol resolution in the context of dynamic loading (dlopen) on Linux. Now I'm looking for the specifications governing this. ...

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How does module loading work in CPython under the hood? Especially, how does the dynamic loading of extensions written in C work? Where can I learn about this? I find the source code itself rather...

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I'd like to use libdl to dynamically load C++ in general. The problem is identifying symbols at runtime that have been name mangled. As described here, one solution is to remove name mangling by u...
Lianaliane asked 6/6, 2014 at 18:30

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I need to be able to load Haskell modules dynamicaally, and evaluate expressions in the context of dynamically-loaded modules. Hint does it; the problem is, it doesn't work under GHCi, on Windows ...
Lovage asked 5/12, 2013 at 8:37

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Assuming that both of these approaches load the script properly, and that I wait the appropriate amount of time before using the script (and/or use a callback), what are the major differences betwe...
Androcles asked 26/4, 2011 at 13:45

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