> > Is SUN3 compability broken?  When I tried a SUN3 binary, it complained 
> > that it could not find ld.so, so I tried to copy ld.so from a SUN3.
> > Now it says:  ld.so: map heap error (22) for /dev/zero
> > File says 'mc68020 demand paged dynamically linked executable' on the SUN3.
> > I had the impression that the only thing needed was some SUN3 shared
> > libraries...
> 
> I'll certainly forget parts, here we go. Someone might put this into a FAQ...
> 
> 1/ copy SunOS ld.so to /usr/lib/ld.so
> 2/ edit that ld.so with a binary editor (emacs will do), and do
>    replace-string /usr/lib/ /sun/lib/
>    replace-string /etc/ld.so.cache /sun/ld.so.cache
> 3/ mkdir /sun
> 4/ ln -s {YOURSUNOSPARTITION}/usr/lib /sun/lib
> 
> that's it. Works for me. If you feel like it, chroot to the sunos-partition
> and generate a ld.so.cache file with "ldconfig", and copy that into /sun
> as well.


Does not work for me (I skipped the ldconfig part for the moment).
I get the following output from ktrace, maybe someone can decipher
it?

 ...
 23394 ktrace   NAMI  "/usr/local/bin/iccz80"
 23394 iccz80   RET   execve 0
 23394 iccz80   CALL  open(0x220a,0,0x2224)
 23394 iccz80   NAMI  "/usr/lib/ld.so"
 23394 iccz80   RET   open 3
 23394 iccz80   CALL  read(0x3,0xdfff8e4,0x20)
 23394 iccz80   GIO   fd 3 read 32 bytes
       "\M^@\^B\^A\v\0\0@\0\0\0 \0\0\0\0\0\0\0\0\0\0\0\0 \0\0\0\0\0\0\0\0"
 23394 iccz80   RET   read 32/0x20
 23394 iccz80   CALL  old.mmap(0,0x22000,0x5,0x80000002,0x3,0)
 23394 iccz80   RET   old.mmap 34471936/0x20e0000
 23394 iccz80   CALL  old.mmap(0x2100000,0x2000,0x7,0x80000012,0x3,0x4000)
 23394 iccz80   RET   old.mmap 34603008/0x2100000
 23394 iccz80   CALL  munmap(0x20e4000,0x1c000)
 23394 iccz80   RET   munmap 0
 23394 iccz80   CALL  open(0x2219,0,0x226a)
 23394 iccz80   NAMI  "/dev/zero"
 23394 iccz80   RET   open 4
 23394 iccz80   CALL  close(0x3)
 23394 iccz80   RET   close 0
 23394 iccz80   CALL  old.getrlimit(0x3,0xdfff838)
 23394 iccz80   RET   old.getrlimit 0
 23394 iccz80   CALL  old.mmap(0xee00000,0x2000,0x3,0x80000012,0x4,0)
 23394 iccz80   RET   old.mmap -1 errno 22 Invalid argument
 23394 iccz80   CALL  write(0x2,0xdfff764,0x2a)
 23394 iccz80   GIO   fd 2 wrote 42 bytes
       "ld.so: map heap error (22) for /dev/zero\r
       "
 23394 iccz80   RET   write 42/0x2a
 23394 iccz80   CALL  exit(0x7f)

from man mmap:
     [EINVAL]      MAP_FIXED was specified and the parameter was not page
                   aligned.  Fd did not reference a regular or character spe-
                   cial file.

     MAP_FIXED   Do not permit the system to select a different address than
                 the one specified.  If the specified address cannot be used,
                 mmap will fail.  If MAP_FIXED is specified, addr must be a
                 multiple of the pagesize.  Use of this option is discouraged.

crw-rw-rw-  1 root  wheel    2,  12 Jan 29 14:38 /dev/zero

Pagesize is reported to be 0x2000 by getpagesize().  0xee00000 is a multiple
of 0x2000.  The size argument is equal to pagesize.  What's wrong?

This is ld.so from SunOS 4.0.

        /Håkan

--
Use MS-Windows every morning and nothing worse will happen to you all day.
email: hth@iar.se