From owner-freebsd-current  Mon Mar  1 13:29: 7 1999
Delivered-To: freebsd-current@freebsd.org
Received: from zippy.cdrom.com (zippy.cdrom.com [204.216.27.228])
	by hub.freebsd.org (Postfix) with ESMTP id 8AE27154B1
	for <current@FreeBSD.ORG>; Mon,  1 Mar 1999 13:28:52 -0800 (PST)
	(envelope-from jkh@zippy.cdrom.com)
Received: from zippy.cdrom.com (localhost [127.0.0.1])
	by zippy.cdrom.com (8.9.3/8.9.3) with ESMTP id NAA34883;
	Mon, 1 Mar 1999 13:28:36 -0800 (PST)
	(envelope-from jkh@zippy.cdrom.com)
To: dyson@iquest.net
Cc: jdp@polstra.com (John Polstra), obrien@NUXI.com,
	current@FreeBSD.ORG
Subject: Re: gcc 
In-reply-to: Your message of "Mon, 01 Mar 1999 15:46:25 EST."
             <199903012046.PAA24587@y.dyson.net> 
Date: Mon, 01 Mar 1999 13:28:36 -0800
Message-ID: <34879.920323716@zippy.cdrom.com>
From: "Jordan K. Hubbard" <jkh@zippy.cdrom.com>
Sender: owner-freebsd-current@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

> I can generally build a kernel with EGCS, if I change how the .text and
> .data are laid out for initialized data.  It seems that the initialization
> code makes assumptions about the order or layout of the initialization
> data.  Once the stuff is made to act more like the version of GCC that
> FreeBSD uses, the kernel will most often build and work.

It really does appear to be a simple matter of first making egcs "take over"
the system compiler:

# cd /usr/ports/lang/egcs
# make all install PREFIX=/usr
# ln -fs /usr/bin/eg++ /usr/bin/c++
# ln -fs /usr/bin/egcc /usr/bin/cc
# cd /usr/src
remove cc from /usr/src/gnu/usr.bin/Makefile SUBDIR list
remove libstdc++ and libobjc from /usr/src/gnu/lib/Makefile SUBDIR list

Then make the world and the kernel.  I also haven't noticed that the
executables are any smaller or larger either way, and I've captured a
fair amount of "cc -v" output to ensure that egcs is, in fact, the
compiler being used. :)

- Jordan


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message