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#!/bin/bash # # Auto-generate requirements for executables (both ELF and a.out) and library # sonames, script interpreters, and perl modules. # ulimit -c 0 # # --- Set needed to 0 for traditional find-requires behavior. needed=1 if [ X"$1" = Xldd ]; then needed=0 elif [ X"$1" = Xobjdump ]; then needed=1 fi [ -z "$OBJDUMP" ] && OBJDUMP=objdump # # --- Grab the file manifest and classify files. #filelist=`sed "s/['\"]/\\\&/g"` filelist=`sed "s/[]['\"*?{}]/\\\\\&/g"` exelist=`echo $filelist | xargs -r file | egrep -v ":.* (commands|script)[, ]" | \ grep ":.*executable" | cut -d: -f1` scriptlist=`echo $filelist | xargs -r file | \ egrep ":.* (commands|script)[, ]" | cut -d: -f1` liblist=`echo $filelist | xargs -r file | \ grep ":.*shared object" | cut -d : -f1` interplist= perllist= pythonlist= tcllist= # # --- Alpha does not mark 64bit dependencies case `uname -m` in alpha*) mark64="" ;; *) mark64="()(64bit)" ;; esac if [ "$needed" -eq 0 ]; then # # --- Executable dependency sonames. for f in $exelist; do [ -r $f -a -x $f ] || continue lib64=`if file -L $f 2>/dev/null | \ grep "ELF 64-bit" >/dev/null; then echo "$mark64"; fi` ldd $f | awk '/=>/ { if ($1 !~ /libNoVersion.so/ && $1 !~ /4[um]lib.so/ && $1 !~ /libredhat-kernel.so/) { gsub(/'\''"/,"\\&",$1); printf "%s'$lib64'\n", $1 } }' done | xargs -r -n 1 basename | sort -u # # --- Library dependency sonames. for f in $liblist; do [ -r $f ] || continue lib64=`if file -L $f 2>/dev/null | \ grep "ELF 64-bit" >/dev/null; then echo "$mark64"; fi` ldd $f | awk '/=>/ { if ($1 !~ /libNoVersion.so/ && $1 !~ /4[um]lib.so/ && $1 !~ /libredhat-kernel.so/) { gsub(/'\''"/,"\\&",$1); printf "%s'$lib64'\n", $1 } }' done | xargs -r -n 1 basename | sort -u fi # # --- Script interpreters. for f in $scriptlist; do [ -r $f -a -x $f ] || continue interp=`head -n 1 $f | grep '^#!' | sed -e 's/^\#\![ ]*//' | cut -d" " -f1` interplist="$interplist $interp" case $interp in */perl) perllist="$perllist $f" ;; esac done [ -n "$interplist" ] && { echo "$interplist" | tr '[:blank:]' \\n | sort -u ; } # # --- Add perl module files to perllist. for f in $filelist; do [ -r $f -a "${f%.pm}" != "${f}" ] && perllist="$perllist $f" done # # --- Weak symbol versions (from glibc). [ -n "$mark64" ] && mark64="(64bit)" for f in $liblist $exelist ; do [ -r $f ] || continue lib64=`if file -L $f 2>/dev/null | \ grep "ELF 64-bit" >/dev/null; then echo "$mark64"; fi` $OBJDUMP -p $f | awk 'BEGIN { START=0; LIBNAME=""; needed='$needed'; } /^$/ { START=0; } /^Dynamic Section:$/ { START=1; } (START==1) && /NEEDED/ { if (needed) { if ("'$lib64'" != "") { sub(/$/, "()'$lib64'", $2) ; } print $2 ; } } (START==2) && /^[A-Za-z]/ { START=3; } /^Version References:$/ { START=2; } (START==2) && /required from/ { sub(/:/, "", $3); LIBNAME=$3; } (START==2) && (LIBNAME!="") && ($4!="") { print LIBNAME "(" $4 ")'$lib64'"; } ' done | sort -u # # --- Perl modules. [ -x /usr/lib/rpm/perl.req -a -n "$perllist" ] && \ echo $perllist | tr '[:blank:]' \\n | /usr/lib/rpm/perl.req | sort -u # # --- Python modules. [ -x /usr/lib/rpm/redhat/python.req -a -n "$pythonlist" ] && \ echo $pythonlist | tr '[:blank:]' \\n | /usr/lib/rpm/redhat/python.req | sort -u # # --- Tcl modules. [ -x /usr/lib/rpm/redhat/tcl.req -a -n "$tcllist" ] && \ echo $tcllist | tr '[:blank:]' \\n | /usr/lib/rpm/redhat/tcl.req | sort -u # # --- Kernel module imported symbols # # Since we don't (yet) get passed the name of the package being built, we # cheat a little here by looking first for a kernel, then for a kmod. # unset is_kmod for f in $filelist; do if [ $(echo "$f" | sed -r -ne 's:^.*/lib/modules/(.*)/(.*)\.ko(\.gz|\.bz2|\.xz)?$:\2:p') ] then is_kmod=1; elif [ $(echo "$f" | sed -r -ne 's:^.*/boot/(.*):\1:p') ] then unset is_kmod; break; fi done [ -x /usr/lib/rpm/redhat/find-requires.ksyms ] && [ "$is_kmod" ] && printf "%s\n" "${filelist[@]}" | /usr/lib/rpm/redhat/find-requires.ksyms exit 0