porting gcc to tic54x

[Ramana Radhakrishnan]

> > I have been porting tic54x to gcc. I use gcc-4.2.2 version. I write some simplest c54x.h and c54x.c and a empty md, and I
>
> I think the answer is right there                                                                         ^^^^^^^^^^

IIRC what you need as a bare minimum as a whole bunch of macros in the
header file and a jump insn.

Take a look at some of the tutorials on writing machine descriptions
off the gcc wiki. There was a workshop about writing incremental
machine descriptions held sometime back that can help you write one
from scratch.

http://gcc.gnu.org/wiki/GettingStarted
http://www.cse.iitb.ac.in/~uday/gcc-workshop/?file=downloads


HTH

cheers
Ramana





On Dec 16, 2007 8:24 PM, Hans-Peter Nilsson <hp@bitrange.com> wrote:
> On Wed, 12 Dec 2007, a2220333 wrote:
>
> > hi,
> > I have been porting tic54x to gcc. I use gcc-4.2.2 version. I write some simplest c54x.h and c54x.c and a empty md, and I
>
> I think the answer is right there                                                                         ^^^^^^^^^^
>
> > compile it to generate the tic54x-gcc compiler.
> >
> > But when I execute the compiler I generate I got a segmentation fault error. Is there anything must be define in c54x.c or
> > c54x.h that could make the simplest compiler with no correct output and no errors? Because I want to add functions from this
> > basic port.
>
> If that wasn't the bug, I suggest you start up gdb and step
> through cc1, but I'd be surprised if you get anywhere without
> the prerequisite move, add, and control flow insns in the .md.
>
> brgds, H-P
>



-- 
Ramana Radhakrishnan