Still trying to start

suthers · Post by **suthers** » Thu Jan 17, 2008 3:29 pm

I've been trying to start OSdeving for some time but I still can't because I can never get a tutorial that works with the compiler/assembler I use.
Could anybody tell me were I could find a tutorial that uses the GNU c++ compiler for windows and NASM?
Also that doesn't use GRUB.
If there isn't any i'll just probably try using DJGPP.
Thanks in advance,

Jules

t0xic · Post by **t0xic** » Thu Jan 17, 2008 4:07 pm

suthers wrote:If there isn't any i'll just probably try using DJGPP.

I would suggest switching over to Cygwin or MinGW. Grub is also very useful for loading ELF binaries. I have a link to pre-compiled i586-elf toolset for Cygwin there. I used to use DJGPP too, but I like Cygwin much better.

--Michael

suthers · Post by **suthers** » Thu Jan 17, 2008 5:31 pm

Sorry I didn't mean the GNU c++ compiler i actually meant Cygwin

Thanks,

Jules

Pyrofan1 · Post by **Pyrofan1** » Thu Jan 17, 2008 5:41 pm

GNU c++ compiler i actually meant Cygwin

Cygwin is not a compiler.

suthers · Post by **suthers** » Thu Jan 17, 2008 5:46 pm

Ok let me get this right im using dev-c++ that does use the GNU C compiler
(ok sorry im totally confussed)
Thanks,

Jules

Pyrofan1 · Post by **Pyrofan1** » Thu Jan 17, 2008 5:48 pm

Dev-C++ uses MinGW, which is the windows port of GCC

Also that doesn't use GRUB.

if you're not using GRUB then you'll have to write your own bootloader.

suthers · Post by **suthers** » Thu Jan 17, 2008 5:49 pm

thanks so that should allow me to link ELF binaries right?
(Thats been my main problem)
I'll try it and see if I can get it to work.
Thanks,

Jukes

Pyrofan1 · Post by **Pyrofan1** » Thu Jan 17, 2008 5:52 pm

thanks so that should allow me to link ELF binaries right?

no, to link elf files in windows you'll need to build a cross compiler.

suthers · Post by **suthers** » Thu Jan 17, 2008 5:55 pm

Ok and were can I get a cross compiler from?
Thanks,

Jules

Pyrofan1 · Post by **Pyrofan1** » Thu Jan 17, 2008 5:58 pm

I believe that you have to compile GCC with the right options under Cygwin. Look on the wiki, there's more info there.

suthers · Post by **suthers** » Thu Jan 17, 2008 6:06 pm

Thanks, but I was thinking isn't there another format I could use that supports externals (This is on the ASM), can be linked by LD and can be linked to whatever dev-c++ takes as a default format?
Thanks,

Jules

t0xic · Post by **t0xic** » Thu Jan 17, 2008 6:24 pm

Also, I gave you a link to my already compiled i586-elf cross compiler.
Here it is again: (Cygwin only)
http://code.google.com/p/onyxkernel/dow ... 2&can=2&q=

Zacariaz · Post by **Zacariaz** » Fri Jan 18, 2008 12:26 am

You may want to check out http://www.brokenthorn.com/Resources/OSDevIndex.html
I my oppinion a fantastic recourse and it works with nasm.

JamesM · Post by **JamesM** » Fri Jan 18, 2008 2:33 am

OK, suthers, I think you are confused about a few things:

1) As stated, cygwin is not a compiler, it is a virtual UNIX environment (which happens to come with a compiler installed).

2) If you don't want to use GRUB (or a similar compatible multiboot loader) then there's no point in even looking at ELF as all your binaries will have to be in raw format anyway!

3) If you ARE looking at GRUB or similar, and want to look at tutorials, then make yourself a cross compiler in cygwin (see Wiki:GCC Cross Compiler), it's a very good article written by Solar, which I am in fact now following to make an i686 compiler at this moment...

So, if you're looking to make your own bootloader, I reccommend Neon's tutorials at http://www.brokenthorn.com.

If you're looking to make your own kernel (and skip the bootloader for the moment), I reccommend you look at either Bran's kernel development tutorial, or these, which were written by someone here, but I can't remember who...

jal · Post by **jal** » Mon Jan 21, 2008 4:56 am

JamesM wrote:2) If you don't want to use GRUB (or a similar compatible multiboot loader) then there's no point in even looking at ELF as all your binaries will have to be in raw format anyway!

I do not see why, as he could write an ELF bootloader himself? Or am I missing something here...

JAL

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