Date: Sat, 15 Apr 2006 14:16:04 -0400 (EDT) From: Daniel Eischen <deischen@freebsd.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: victor@bsdes.net, hackers@freebsd.org Subject: Re: Missing dependencies on shared libraries Message-ID: <Pine.GSO.4.64.0604151411140.9269@sea.ntplx.net> In-Reply-To: <20060415.120640.28764842.imp@bsdimp.com> References: <Pine.GSO.4.64.0604141439280.3685@sea.ntplx.net> <20060415.113630.81407700.imp@bsdimp.com> <Pine.GSO.4.64.0604151358210.9220@sea.ntplx.net> <20060415.120640.28764842.imp@bsdimp.com>
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On Sat, 15 Apr 2006, M. Warner Losh wrote: > In message: <Pine.GSO.4.64.0604151358210.9220@sea.ntplx.net> > Daniel Eischen <deischen@freebsd.org> writes: > : On Sat, 15 Apr 2006, M. Warner Losh wrote: > : > : > In message: <Pine.GSO.4.64.0604141439280.3685@sea.ntplx.net> > : > Daniel Eischen <deischen@freebsd.org> writes: > : > : On Fri, 14 Apr 2006, Victor Balada Diaz wrote: > : > : > : > : > Hi, > : > : > I found that ldd doesn't report libc as a dependency on most (all?) > : > : > libraries: > : > : > > : > : > pato> ldd /usr/lib/libfetch.so > : > : > /usr/lib/libfetch.so: > : > : > libssl.so.3 => /usr/lib/libssl.so.3 (0x4816a000) > : > : > libcrypto.so.3 => /lib/libcrypto.so.3 (0x48198000) > : > : > > : > : > does anyone know why? > : > : > : > : AFAIK, it's being worked on. It's not just libc either, -pthread > : > : also has to start linking to libpthread. > : > > : > We don't record libc dependencies into shared libraries right now. If > : > we did, that would create some problems and solve some problems. With > : > symbol versioning, it most likely will become moot, since we'll never > : > have to bump libc major version again... > : > : kan stated he was working on doing this, which is what I was > : referring to above. > > That makes sense. If you explicitly include libc on the command line > to build the library, it is included... Here's the link to his original reply to -current. Also, if you look at linux shared libraries, you'll note they have dependencies to libc. $ readelf -d /usr/compat/linux/lib/libpthread.so.0 Dynamic segment at offset 0x15128 contains 24 entries: Tag Type Name/Value 0x00000001 (NEEDED) Shared library: [libc.so.6] 0x0000000e (SONAME) Library soname: [libpthread.so.0] ... http://docs.freebsd.org/cgi/getmsg.cgi?fetch=884395+0+archive/2006/freebsd-current/20060212.freebsd-current -- DE
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