Re: [Mingw-users] dll loading, folder

[Patrik J. <je...@ka...>]

There are several ways to know which dll's are loaded. For example the 
debugger shows me what dll's are loaded. But the reason why I noticed 
is, because one of the "not required" dll's produces a runtime error 
because of a missing manifest file (its an vc++ generated dll).

The application is quite large, and links dynamicly (with import 
libaries) to a relative large number of dll's. It does not use 
LoadLibrary or has any other kind of plugin support.

I'am using the Code::Blocks IDE, maybe I have to look there to solve 
this mystery. Providing source code does not help to solve this problem, 
nor does debugging. The win32 app built with mingw just loads *all 
*dll's, which are in the same folder as the main app, at startup.

Also, I checked all my projects for a wrongly added dependency, but I 
found none. This led me to the idea that maybe this is some kind of a  
mingw feature which I don't know of, and of which I wouldn't see any 
benefit in either.

patrik






Tor Lillqvist wrote:

>Patrik Jeller writes:
> > But if I 
> > have dll's in this same folder which are not required (no dependencies 
> > whatsoever) the mingw application does load all the dll's on 
> > startup(whether required or not).
>
>(Firstly, I don't think there is any such thing as a "mingw
>application". It's simply a Win32 application that just happens to be
>built using the mingw compiler.)
>
>How do you know that it is loading the DLLs? Does it provide some kind
>of logging? Doesn't the log output give any information to why it is
>doing it?
>
> > My question is, what reasons may there be that the application
> > loads dll's which it does not require? Is this some kind of default
> > behaviour?
>
>Certainly not. What kind of application is this? Does it support some
>kind of "plugins"? Are its plugins DLLs? Maybe it thinks the DLLs are
>plugins? Do you perhaps specify the location where it should look for
>plugins incorrectly?
>
> > By the way: The same application and dll's I have build with the ms
> > compiler and there it works fine, it only loads the dll's the app
> > is depending upon.
>
>This is a total mystery then. But if you have the source code, surely
>you have been looking through it and looking for the place where it
>does the LoadLibrary()?
>
>I don't really think we can help you without you showing us the
>application source code. (And on the other hand, if it is a large and
>confusingly written application, few people probably would bother
>doing your debugging work for you ;) What you are descibing is
>certainly not something that would be default behaviour.
>
>--tml
>
>
>
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