gcc front end

[Rafael Ávila de Espíndola]

On Tuesday 19 July 2005 10:34, Sean PH wrote:
>  Hello,
>
>  I'm currently working on implementing a tool chain for a 'pet
> language' of mine called O (for Obscure, since my preferred name was
> taken). You can see the [unfinished] language specification here:
>
>  http://sean.heybryan.org/spec0_unfinished.pdf
>
>  Note that the implementation notes chapter isn't filled in since I
> havn't gotten around to finding a back-end for the compiler yet. gcc
> looks like a very good option, however the documentation is quite
> 'preliminary' and I am having trouble understanding some things. Would
> anyone there be willing to help me on this, even just to talk about
> gcc's features and how I would apply my language constructs to them at
> first? I am approaching a point at which I have a full parse tree of
> the language available and will be ready to dive into connecting it to
> a back end, so this would be much appreciated.
I think that you should take a look at the GCC front end HOWTO. Some parts of 
it are out of date but most of it is quite useful. Studing other front ends 
is also helpfull. I have made a very small Hello World front end to show what 
is the smallest program that can link with the gcc middle end. I is not 
completely documented, but I think that it can be usefull. It is at
http://svn.gna.org/viewcvs/gsc/branches/hello-world/

A much more mature example is the treelang front end that comes with gcc. I 
also think that the fortran front end is a very good reference.

>  Sorry for any grammar errors, they're unintentional as I just pulled
> an all-nighter :).
>
>  Thanks, Sean Purser-Haskell

Wen you have more specific question feel free to ask. :)

Rafael Ávila de Espíndola
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