On Wed, Sep 19, 2007 at 03:26:37PM +0200, Michelle Konzack wrote: > Am 2007-09-17 19:46:20, schrieb David Given: > > For the former, you'll need to write a new gcc backend targeting your > > architecture, and then add support to binutils to allow programs to be linked. > > This is not easy. gcc's innards tend to drive people mad. > > While reading a little bit the gcc documentation, I am realy confuse > WHERE to start and HOW! At first you should check what is already available. I wrote a gcc backend for a small RISC core during my internship. They told me, they have an assembler. But it only was a hackish perl script. And the functionality of ld and ar was not implemented at all. So I started with implementing as, ld and ar. Half a year later, everything worked fine and there was only one bug in the port I knew of. But I didn't implement stuff like floating point. Of course, to get a compiler which is able to compile itself more work is needed. And after that you can start porting Linux... Daniel
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