converting linux driver to win driver

[pukiamak]

Hello Guys,

I am trying to convert linux driver written by someone to win driver. The final code should be OS independent in other words it should know which enviroment it is running on. Should I declare #ifdef __WIN32 in the header file or it is built in? I am not too familiar with driver development in win. Everytime I compiled in VIsual Studio I always get an error msg unexpected #endif. My code is like

main(){
#ifndef __WIN32
*** code
#else
***code
#endif
}

Any ideas?

Thanks,

 

[cpjust]

The final code should be OS independent in other words it should know which enviroment it is running on.

I don't think it's possible to create a native executable program that can run on Windows & Linux. Something like Java can do that since it uses a byte-code interpreter.
You'll have to compile one file for Windows and another for Linux.
The example you posted should work (although I usually use WIN32 instead of __WIN32). Check if you have any extra #endif lines anywhere.

 

[pukiamak]

what should i define WIN32 as? I am confused about this one.. what should i write in the header file?

Thanks,

 

[cpjust]

Just what you had there...

#ifdef WIN32
   // Windows code here.
#elif LINUX
   // Linux code here.
#elif SOLARIS
   // If you want Solaris too, put that here...
...
#endif

In the Project Settings, just make sure WIN32 is in the list of Pre-processor Definitions (which it should be by default).

 

[pukiamak]

alright guys so I developed my code in Visual Studio..but i got this stupid error saying that error LNK2005: int a bla bla already defined in *.obj..I have two files of code that link together..any ideas?

 

[pukiamak]

never mind guys..i figured the problem out. it seems i need to use extern instead of the include. Anyway I have question do you guuys know how to parse the command line argument. Suppose if I type

-a 64, How can i take the 64?

In Linux it is easy, we can use getopt() or optarg option. But how can we do it in Windows environment?

Thanks

 

[ArkM]

Try, for example:

http://www.freedos.org/jhall/getopt_long/