Which version of FreeBSD a binary was compiled for?

Joshua Tinnin krinklyfig at comcast.net
Wed Oct 26 20:15:54 PDT 2005


On Wed 26 Oct 05 09:18, "Andrew P." <infofarmer at gmail.com> wrote:
> On 10/26/05, Robert Huff <roberthuff at rcn.com> wrote:
> > Andrew P. writes:
> > >  > file /usr/bin/man
> > >  >
> > >  > on my machine outputs:
> > >  >
> > >  > /usr/bin/man: ELF 32-bit LSB executable, Intel 80386, version
> > >  > 1 (FreeBSD), for FreeBSD 5.4-CURRENT (rev 3), dynamically
> > >  > linked (uses shared libs), stripped
> > >
> > >  Oh, it's just that file hasn't leared anything about
> > >  FreeBSD 6 yet, so it doesn't display version info
> > >  when run against my binaries.
> >
> >         Curious.
> >
> > huff@> file /usr/bin/man
> > /usr/bin/man: ELF 32-bit LSB executable, Intel 80386, version 1
> > (FreeBSD), for FreeBSD 7.0 (700003), dynamically linked (uses
> > shared libs), stripped huff@>
>
> I tried both versions of file (base system and ports)
> on 6.0 RC1, none showed any info about that
> /usr/bin/man (or any other system binary I tried).
>
> On my firewall (5.4) it works.

That's odd. Am on 6.0-RC1:

# uname -a
FreeBSD smogmonster.local 6.0-RC1 FreeBSD 6.0-RC1 #0: Thu Oct 20 
14:41:23 MDT 2005     
krinklyfig at smogmonster.local:/usr/obj/usr/src/sys/MYKERNEL60  i386

% file /usr/bin/xargs
/usr/bin/xargs: ELF 32-bit LSB executable, Intel 80386, version 1 
(FreeBSD), for FreeBSD 6.0 (600034), dynamically linked (uses shared 
libs), stripped

% file /usr/bin/man
/usr/bin/man: ELF 32-bit LSB executable, Intel 80386, version 1 
(FreeBSD), for FreeBSD 6.0 (600034), dynamically linked (uses shared 
libs), stripped

% file /bin/echo 
/bin/echo: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), 
for FreeBSD 6.0 (600034), dynamically linked (uses shared libs), 
stripped


I know I built valgrind just a few days ago:

% file /usr/local/bin/valgrind
/usr/local/bin/valgrind: ELF 32-bit LSB executable, Intel 80386, version 
1 (FreeBSD), for FreeBSD 6.0 (600034), statically linked, stripped

vim, too:

% file /usr/local/bin/vim     
/usr/local/bin/vim: ELF 32-bit LSB executable, Intel 80386, version 1 
(FreeBSD), for FreeBSD 6.0 (600034), dynamically linked (uses shared 
libs), stripped


I'm not sure what it means when this information isn't accessible, but 
I'd say it's symptomatic of another issue, and most likely it's not 
good. If you built from source, did you follow the procedure described 
in the handbook? 
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html

Not sure, but are you installing kernel after building world, and then 
installing world in single user? I've seen strange things happen if you 
don't do this procedure the right way. Of course, I'm just guessing, as 
I'm not at all sure what could be causing this problem or what your 
exact circumstances are.

- jt


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