On Thu, Jul 22, 1999 at 11:19:35PM +0930, Kris Kennaway wrote:
> On Thu, 22 Jul 1999, Dominic Mitchell wrote:
>
> > > PAM is also "using masses of weird shared objects" but nevertheless it's
> > > quite usable
> >
> > By statically linked binaries?
>
> This is also an issue for a modularized libcrypt(). Peter Wemm suggested
> having the library fork and exec a static helper binary module and
> communicate via a pipe. So essentially you'd have two files for each
> module, one which is a shared library and loaded via dlopen() and one
> which is the same code with a small amount of wrapper (main() etc) to make
> it into a standalone binary.
This is starting to get icky. This is also where the earlier idea of a
userspace filesystem would probably fare better, in terms of both
performance and simplicity.
> Solaris seem to be deprecating static libraries; you cannot have a fully
> static libc and they have to resort to keeping (a copy of) libdl (and
> presumably the run-time linker) under /etc so it's available on the root
> partition.
Solaris hasn't supported static linking for some time. If you have a
look at Casper Dik's FAQ, it goes into more detail. They do keep stuff
on the root partition:
admin# ls -l /etc/lib
total 644
-rwxr-xr-x 1 bin bin 155060 Jul 1 1998 ld.so.1*
-rwxr-xr-x 1 bin bin 4284 Jul 1 1998 libdl.so.1*
-rwxr-xr-x 1 bin bin 25468 Jul 16 1997 nss_files.so.1*
lrwxrwxrwx 1 root root 17 Sep 14 1998 pam_authen.so ->
./pam_authen.so.1*
-rwxr-xr-x 1 root sys 14516 Jul 16 1997 pam_authen.so.1*
lrwxrwxrwx 1 root root 16 Sep 14 1998 pam_entry.so -> ./pam_entry.so.1*
-rwxr-xr-x 1 root sys 11540 Jul 16 1997 pam_entry.so.1*
lrwxrwxrwx 1 root root 17 Sep 14 1998 pam_extern.so ->
./pam_extern.so.1*
-rwxr-xr-x 1 root sys 11044 Jul 16 1997 pam_extern.so.1*
lrwxrwxrwx 1 root root 16 Sep 14 1998 pam_pwmgt.so -> ./pam_pwmgt.so.1*
-rwxr-xr-x 1 root sys 85764 Jul 16 1997 pam_pwmgt.so.1*
lrwxrwxrwx 1 root root 18 Sep 14 1998 pam_session.so ->
./pam_session.so.1*
-rwxr-xr-x 1 root sys 4748 Jul 16 1997 pam_session.so.1*
--
Dom Mitchell -- Palmer & Harvey McLane -- Unix Systems Administrator
In Mountain View did Larry Wall
Sedately launch a quiet plea:
That DOS, the ancient system, shall
On boxes pleasureless to all
Run Perl though lack they C.
--
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