RE: How do I run CGEN?

["Lindley, Robert A" <robert.a.lindley@boeing.com>]

Thanks,
 
Is there a preliminary, draft, or working copy of Chapter 2?
Is someone working on it?
Perhaps if I made notes on my adventure through this maze 
it would be of some help?
 
To someone who knows the inner workings of gas and ld, cgen
may seems easy and intuitive. However, I am starting this journey 
from square zero. As such, I need a high level overview of the the
tasks that must be accomplished and the order that they must be done.
 
I am going to re-read the available, and very detailed, documentation.
I think that I need to know more about how gas and ld work to get
a better idea about how all of this fits together.
 
Bob Lindley

________________________________

From: Frank Ch. Eigler [mailto:fche@redhat.com]
Sent: Thu 3/16/2006 8:30 AM
To: Lindley, Robert A
Cc: cgen@sourceware.org
Subject: Re: How do I run CGEN?



Hi -

> [...] Can't find anything that gives a top level discussion of how
> to accomplish the series of tasks that define a processor to making
> a new as and ld. [...]  I need to define a unique (MECA-43)
> processor and can't get started.

Despite the documentation, most cgen users tend to run it in batch
mode only.  A new port is typically done by replicating an existing
port with a new name throughout source tree, making that build, then
modifying it to represent the actual target CPU.

An old thread gives an outline of the other (cgen-unassisted) parts of
binutils porting: http://sourceware.org/ml/cgen/2003-q4/msg00014.html

- FChE