Subject: Re: stdio FILE extension
To: NetBSD Userlevel Technical Discussion List <tech-userlevel@NetBSD.ORG>
From: Jason R Thorpe <email@example.com>
Date: 10/19/2001 12:40:01
On Fri, Oct 19, 2001 at 03:28:37PM -0400, Greg A. Woods wrote:
> In the Sun world a major upgrade is one like SunOS-4.x to SunOS-5.[0-8],
> or SunOS-5.[0-8] to SunOS-5.9 (or maybe even some jumps in between,
> depending on exactly what purpose your machine has). From what I know
> Sun are hoping to have several binary translation tools to help assist
> their users make the migration from Solaris- to Solaris-9.
SunOS 4 -> 5 was effectively changing to an entirely different
SunOS 5.8 -> 5.9, as I understand it, will be going from ILP32 -> LP64
These are both pretty big deals.
How is this like changing from NetBSD 1.x -> NetBSD 2.x, considering
(a) The operating system will still be the same -- the most
that will really be changing is the *kernel*.
(b) The binary formats are staying the same. (Hell, even the
"1.4 a.out" -> "1.5 ELF" transition went pretty smoothly,
and that was a minor relase!).
> In the NetBSD world a major upgrade is certainly the one from a.out to
> ELF. If you did that without rebuilding a lot (or all) your add-on
> software then you were lucky, and guess what -- /emul saved your day.
So, some of us considered ditching the __RENAME'd symbols during that
bump. But the problem is that not everyone could switch at the same
time, therefore it was deemed inappropriate.
"That ship has sailed, buddy!"
-- Jason R. Thorpe <firstname.lastname@example.org>