Do library unload function calls fail?

Question

linux

The crux of the matter is in the title. When an application crashes, is the unloading function of libraries called?

Answer 1

When an application crashes, is the unloading function of libraries called?

If the application crashes from an unhandled exception, then according to the description of RaiseException , the default action is to call ExitProcess. When the application terminates via ExitProcess , DllMain will be called for loaded libraries with the code DLL_PROCESS_DETACH.

Answer 2

In Linux, nothing is called during a crash, and it cannot, because the data is corrupted!
But the system can do a post-mortem dump of the process's memory into a so-called core file if asked to do so. And it can be viewed in the debugger, which often helps.

Answer 3

Depends on what kind of crash and how these libraries were loaded.
If any resources were created outside of the crashed process, a leak will occur.
But what was inside the process will be automatically cleaned by the system.