Subject: Re: how to use crosscompiler?
To: None <tech-toolchain@netbsd.org>
From: Valeriy E. Ushakov <uwe@ptc.spbu.ru>
List: tech-toolchain
Date: 02/04/2004 16:00:05
On Wed, Feb 04, 2004 at 12:49:58 +0000, Nick Hudson wrote:
> > How about we do this:
> > * use absolute symlinks for the runtime libraries
> > libfoo.so.M and libfoo.so.M.N.
> > * use relative symlinks for the link-time library libfoo.so.
> > ?
> >
> > This would result in:
> > usr/lib/libz.so -> ../../lib/libz.so
> > usr/lib/libz.so.0 -> /lib/libz.so.0
> > usr/lib/libz.so.0.3 -> /lib/libz.so.0.3
>
> I think
>
> usr/lib/libz.so -> ../../lib/libz.so
> usr/lib/libz.so.0 -> /lib/libz.so.0.3
>
> is all that is needed.
>
> ld.elf_so uses the soname to find the library and I can't think of anything
> that directly references the real library object.
On a somewhat tangetial note, but I actually meant to ask this for a
long time. Why we have:
$ ldd /bin/ls /usr/bin/find
/bin/ls:
-lc.12 => /lib/libc.so.12
/usr/bin/find:
-lc.12 => /usr/lib/libc.so.12
Why incur a symlink traversal lookup on all /usr/* binaries?
Oh, and also:
$ readelf -a /bin/ls /usr/bin/find | grep interpreter
[Requesting program interpreter: /libexec/ld.elf_so]
[Requesting program interpreter: /usr/libexec/ld.elf_so]
SY, Uwe
--
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