Hi Eduardo,
I was in a VERY similar problem. I was hired by a company that has designed its own processor and was porting GCC onto it. I was hired to maintain it and provide customer support and upgradation for all future versions of the processors (adding new instructions etc etc...) and believe me I didnt know a thing in Compiler designs. (only worked with them years). Anyway, a similar question posted by me evoked a VERY poor response.
Anyway, here is all the material I could gather. Im by no means completely comfortable with it, but could just get started.... If at all you come across better material, I'd be glad if you can share it with me...
ALSO CHECK OUT:
http://gcc.gnu.org/onlinedocs/gccint/ (it'll give you what is what about gcc internals).
Kind Regards, Sriharsha.
eduardok@xxxxxxxxxxx wrote:
Me and my college are building our own processor and we need to modify the GCC back end in order to generate code to our processor.
The first idea was to compile a C code using the GCC and ganerate an assembly code, that would be used as an input to our hand made mounter to generate hexadecimal codes to our processor. The problem is that we know nothing about how GCC works and how it generates codes for the other architectures.
As we don't have to much time to do that, I'm asking for the fastest and more directly way to learn about the GCC back end (any books, manuals, or other documents that could help) and some tips for modifying it.
Thanks everybody, Eduardo Koerich.
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