Date: Sat, 19 May 2007 07:47:30 +1000 From: Peter Jeremy <peterjeremy@optushome.com.au> To: ports@freebsd.org Subject: Re: Specs for saving old shared libs Message-ID: <20070518214729.GA29623@turion.vk2pj.dyndns.org> In-Reply-To: <20070518075058.GB1164@turion.vk2pj.dyndns.org> References: <op.try3lgvv9aq2h7@mezz.mezzweb.com> <20070507201448.GA52651@xor.obsecurity.org> <op.try4tyhd9aq2h7@mezz.mezzweb.com> <20070507204414.GA53358@xor.obsecurity.org> <20070507205850.GA34916@lor.one-eyed-alien.net> <20070507220659.GC78665@graf.pompo.net> <20070507222146.GA57768@xor.obsecurity.org> <464CB5AA.7040304@FreeBSD.org> <1179437517.8912.5.camel@ikaros.oook.cz> <20070518075058.GB1164@turion.vk2pj.dyndns.org>
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On 2007-May-18 17:50:58 +1000, Peter Jeremy <peter@turion.vk2pj.dyndns.org>=
wrote:
>Ideally, you also need some way to identify (and remove) old .so files
>that are no longer referenced by anything. This is not as easy
>because there's no record of what ports use what .so's (and no way to
>track apps outside the ports system).
OK, my offering to assist with this scans a specified set of file
trees and reports any executables that reference shared libraries in
compat or that can't be found:
#!/bin/sh
#
# Find executables using compat libraries
find -x "$@" -type f -perm +0100 -print0 |\
( xargs -0 ldd 2>&1 >&3 | \
egrep -v "not a dynamic executable|can't read program header|Exec format e=
rror" >&2 ) 3>&1 |\
awk '/^[^ ]/ { exe =3D $0; next }
NF !=3D 4 || $3 ~ /\/compat\// || $4 !~ /^\(0x[0-9a-f]*[1-9a-f]/ {=
print exe, $0}'
--=20
Peter Jeremy
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