tenny@ootool.dec.com (Dave Tenny) (02/28/91)
A couple of weeks ago, people were asking about why Lisp didn't work
as advertised when upgrading from 1.0 to 2.0 software. The nice people
at NeXT provided me a patch to make ACL work under 2.0, but it only
works for 2.0 systems on 68030's. Lisp on 68040's must have the formal
upgrade which hasn't been made available yet.
Here is the reply from the person at NeXT, who isn't permitted to
post to this group, so I'll post for her, removing names to protect
the thoughtful.
Dave
------------------------------------------------------------------------------
Subj: Making Common Lisp work under 2.0
A NextAnswer for you about massaging Common Lisp to work under
Release 2.0.
Franz Allegro Common Lisp 2.0 1.0
Q: Why can't I use my 1.0 version of Franz Allegro Common Lisp under
2.0? Is there something I can do to make it work until an update
becomes available?
A: The 1.0 release of Common Lisp does not work with Release 2.0 for
several reasons:
1. the Mach header of the .o files have some uninitialized
fields
2. the libNeXT and libdsp have some incompatibilities and
cannot be used
3. foreign loading doesn't quite work
(and perhaps other unknown things). The 1.0 version may be modified
to more or less work (i.e. no NeXTstep, no dsp, limited foreign code
interface) as follows. THIS WILL ONLY WORK FOR 030 MACHINES!!!
There is no known fix for the 040 machines.
Make sure that the /usr/cl directory from 1.0 is backed up. Also save
the /usr/lib/emacs/lisp/fi directory if you like that sort of thing.
After building a 2.0 system, re-install the /usr/cl directory.
Save the following program as fixlispheader.c:
=========================================================
#include <mach.h>
#include <sys/loader.h>
#include <sys/file.h>
#include <nlist.h>
/* This fixes the mach header of /usr/cl/build/static.o for release
2.0 */
main()
{
int fd;
struct mach_header mh;
struct nlist nl;
fd = open("static.o", O_RDWR);
read(fd, &mh, sizeof(mh));
mh.cputype = CPU_TYPE_MC680x0;
mh.cpusubtype = CPU_SUBTYPE_MC68030;
lseek(fd, 0, L_SET);
write(fd, &mh, sizeof(mh));
lseek(fd, 1400832, L_SET);
read(fd, &nl, sizeof(nl));
nl.n_type = N_SECT | N_EXT;
nl.n_sect = 1;
lseek(fd, 1400832, L_SET);
write(fd, &nl, sizeof(nl));
}
====================================================================
Compile this program: (i.e. "cc -o fixlispheader fixlispheader.c"),
then in a shell as root:
# cd /usr/cl/build
# fixlispheader
This will destructively modify the static.o file so that it works
with the 2.0 release.
Before doing a normal "config" operation to build the lisp image, the
config file must be modified to not link in libNeXT and libdsp. Open
/usr/cl/build/config and change line 679 from
LDFLAGS = -lcrt0.o -u _NXEditorFilter -u _DSPAwaitData
to
LDFLAGS = -lcrt0.o
Also change line 680 from
LIBRARIES = -lNeXT_s -ldsp_s -lsys_s
to
LIBRARIES = -lsys_s
After these modifications, run the configuration script as normal.
Dynamic foreign code loading is also broken: (load "foo.o") will not
work. The workaround is to build a custom image (using the
configuration script) with your code linked in. To do this, add your
.o files to the LIBRARIES macro mentioned above. For example:
LIBRARIES = /me/foo.o -lsys_s
When running this image, use the lisp defforeign function as usual.
QA670layer@Franz.COM (Kevin Layer) (03/02/91)
In article <1991Feb28.144436.7961@engage.enet.dec.com> tenny@ootool.dec.com (Dave Tenny) writes:
Lisp on 68040's must have the formal
upgrade which hasn't been made available yet.
Yes, this is correct, and the work is nearly complete. ACL 3.1.20 for
NeXT 2.0 is now in QA and I expect it to be released in the next week.
The 040 has separate data and instructions caches, which means any
program that executes data must flush the caches before doing so.
This release of ACL will be different than the previous NeXT release:
it will be distributed on 12-1.44MB 3.5" micro floppy disks, with
pre-installed binary images of ACL and GNU Emacs (the source to the
latter is available, too).
If you have 1.0 and are expecting an upgrade, you contact NeXT,
otherwise contact Franz Inc. at (415) 548-3699 or info@franz.com for
more information.
--
Kevin Layer, Franz Inc. 1995 University Avenue, Suite 275
layer@Franz.COM (internet) Berkeley, CA 94704
uunet!franz!layer (uucp) Phone: (415) 548-3600; FAX: (415) 548-8253layer@Franz.COM (Kevin Layer) (03/02/91)
>> otherwise contact Franz Inc. at (415) 548-3699 or info@franz.com for
Gee, I should read my own .signature to find out that my number is really
(415) 548-3600
Sorry for the noise.
--
Kevin Layer, Franz Inc. 1995 University Avenue, Suite 275
layer@Franz.COM (internet) Berkeley, CA 94704
uunet!franz!layer (uucp) Phone: (415) 548-3600; FAX: (415) 548-8253