Re: what happens before main()?

Ivan Ostres <[email protected]>
Newsgroups gmane.comp.macosx.devel
Message-ID <[email protected]>
Hi!

To every C/C++ program, startup file is added - like /usr/lib/crt1.o  
which does initializations. Since it was not compiled with -g, you  
can't really step through it but you could find source for it (if  
available) and compile it yourself and add it to your program instead  
of standard crt*.o. In that case you could step through it.

Regards,
Ivan

P.S. You can check gcc/ld documentation which exact startup file is  
linked to your program to be sure


On Apr 27, 2010, at 11:59 AM, Aya Koshigaya wrote:

> Hi,
>
> I have a big library written in C++, in this lib there are several  
> static-things that get initialised at the start of the Programm,  
> even before the main() function is called.
>
> So far so good, but the problem is - the program takes some time to  
> start, and when I did some time-trackings to see where the time  
> goes, I found out it takes already up to 3 seconds until my main()  
> function is called.
>
> But, since there are about 300-400 Files it would take forever to  
> find the "bad" statics.. so, is there any way in Xcode to step  
> trough the initialisation process? Like as if I'd put a breakpoint  
> in the main() function and step forward.. but in the main method  
> it's already to late :(
>
> Aya~_______________________________________________
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