NAME
compat_sunos —
setup procedure for
m68k, sparc and sparc64 architectures
DESCRIPTION
NetBSD/sparc64,
NetBSD/sparc and
some of the
NetBSD/m68k architectures can run SunOS
executables. Most executables will work.
The exceptions include programs that use the SunOS kvm library, and various
system calls,
ioctl()'s, or kernel semantics that are
difficult to emulate. The number of reasons why a program might fail to work
is (thankfully) longer than the number of programs that fail to run.
Static executables will normally run without any extra setup. This procedure
details the directories and files that must be set up to allow dynamically
linked executables to work.
The files you need are on your SunOS machine. You need to worry about the legal
issues of ensuring that you have a right to use the required files on your
machine. On your
NetBSD machine, do the following:
mkdir -p /emul/sunos/usr/lib
/emul/sunos/usr/5lib
cp SunOS:/usr/lib/lib*.so.*.*
NetBSD:/emul/sunos/usr/lib
cp SunOS:/usr/5lib/lib*.so.*.*
NetBSD:/emul/sunos/usr/5lib
cp SunOS:/usr/lib/ld.so
NetBSD:/emul/sunos/usr/lib/ld.so
- If you ever expect to use YP, you will want to create a
link:
ln -s /var/run/ypbind.lock /etc/ypbind.lock
Alternatively, you can use an NFS mount to accomplish the same effect. On your
NetBSD machine, do the following:
mkdir -p /emul/sunos/usr
mount SunOS:/usr
/emul/sunos/usr
This will place the SunOS libraries on your
NetBSD
machine in a location where the SunOS compatibility code will look for first,
where they do not conflict with the standard libraries.
NOTES
When using
compat_sunos on
NetBSD/sparc64, the
COMPAT_NETBSD32
option must also be used.
BUGS
A list of things which fail to work in compatibility mode should be here.
SunOS executables can not handle directory offset cookies > 32 bits. Should
such an offset occur, you will see the message “sunos_getdents: dir
offset too large for emulated program”. Currently, this can only happen
on NFS mounted filesystems, mounted from servers that return offsets with
information in the upper 32 bits. These errors should rarely happen, but can
be avoided by mounting this filesystem with offset translation enabled. See
the
-X option to
mount_nfs(8). The
-2 option to
mount_nfs(8) will also have
the desired effect, but is less preferable.
The
NetBSD/sparc64 support is less complete than the
other ports.