OpenPKG Specs: openpkg/aux.usrgrp.sh@4a34d7a82eab (annotated)

openpkg/aux.usrgrp.sh@4a34d7a82eab (annotated)

openpkg/aux.usrgrp.sh

Tue, 29 Mar 2011 20:04:34 +0200

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 29 Mar 2011 20:04:34 +0200
changeset 334: 4a34d7a82eab
permissions: -rw-r--r--

Rework package yet again, correcting and introducing new buildconf logic:
Conditionally disable bootstrap stage comparison correctly, correct
english grammar, better find system as(1) and ld(1), indotruce detailed
optimization option messages, more completely guess cpu types, allow
profiled bootstrapping without a preinstalled GCC because many other
compilers have long since implemented 64-bit arithmetic, instruct make
to build sequentially (not in sparallel) when building a profiled
bootstrap as GCC online documents recommend, and generally improve
comment blocks.

The single most important correction in this changeset relates to the
GCC changed optimization policy since at least GCC 4.5, in which -march
is always passed and not always correctly guessed. In the case of this
package, allowing GCC to guess the architecture leads to wild build
errors at various subcomponents (zlib, libgcc, libiberty...) and
bootstrap stages. It seems quite platform specific, and the safest
approach to correcting this seems to be explicitly always specifying the
-march argument when bootstrapping GCC. Because the best choice 'native'
is not available when bootstrapping using a foreign (non GCC) compiler,
a guess is made according to rpmmacros l_platform in that case.

It is questionable as to whether these recent optimization changes
on the part of GCC or this package are compatible with each other,
or if either are complete or correct at all. At least applying these
corrections allows this package to build again in most cases test.

 #!/bin/sh
 ##
 ##  usrgrp.sh -- user/group name/id determination
 ##  Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/>
 ##  Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/>
 ##
 ##  Permission to use, copy, modify, and distribute this software for
 ##  any purpose with or without fee is hereby granted, provided that
 ##  the above copyright notice and this permission notice appear in all
 ##  copies.
 ##
 ##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 ##  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 ##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 ##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
 ##  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ##  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ##  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 ##  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 ##  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 ##  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 ##  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 ##  SUCH DAMAGE.
 ##
 #   command line parameters (defaults)
 help=0
 usr='';  grp=''
 susr=''; sgrp=''
 musr=''; mgrp=''
 rusr=''; rgrp=''
 nusr=''; ngrp=''
 suid=''; sgid=''
 muid=''; mgid=''
 ruid=''; rgid=''
 nuid=''; ngid=''
 #   parse command line options
 for opt
 do
     case $opt in
         -*=*) arg=`echo "$opt" | sed 's/^[-_a-zA-Z0-9]*=//'` ;;
            *) arg='' ;;
     esac
     case $opt in
         -h | --help          ) help=1      ;;
         --usr=* | --user=*   ) usr=$arg    ;;
         --grp=* | --group=*  ) grp=$arg    ;;
         --susr=*             ) susr=$arg   ;;
         --sgrp=*             ) sgrp=$arg   ;;
         --musr=*             ) musr=$arg   ;;
         --mgrp=*             ) mgrp=$arg   ;;
         --rusr=*             ) rusr=$arg   ;;
         --rgrp=*             ) rgrp=$arg   ;;
         --nusr=*             ) nusr=$arg   ;;
         --ngrp=*             ) ngrp=$arg   ;;
         --suid=*             ) suid=$arg   ;;
         --sgid=*             ) sgid=$arg   ;;
         --muid=*             ) muid=$arg   ;;
         --mgid=*             ) mgid=$arg   ;;
         --ruid=*             ) ruid=$arg   ;;
         --rgid=*             ) rgid=$arg   ;;
         --nuid=*             ) nuid=$arg   ;;
         --ngid=*             ) ngid=$arg   ;;
         *                    ) help=1      ;;
     esac
 done
 if [ ".$help" = .1 ]; then
     echo "Usage: sh $0 [-h|--help]" 2>&1
     echo "             [--[smrn]?usr=<usr>] [--[smrn]?grp=<usr>]" 2>&1
     echo "             [--[smrn]uid=<uid>] [--[smrn]gid=<gid>]" 2>&1
     exit 1
 fi
 #   determine cusr/cgrp
 cusr=`(id -un) 2>/dev/null ||\
       (id | sed -e 's;^[^(]*(\([^)]*\)).*;\1;') 2>/dev/null ||\
       (whoami) 2>/dev/null ||\
       (who am i | cut "-d " -f1) 2>/dev/null ||\
       echo $LOGNAME`
 cgid=`(id -g $cusr) 2>/dev/null ||\
       ((getent passwd "${cusr}"; grep "^${cusr}:" /etc/passwd; ypmatch "${cusr}" passwd; nismatch "${cusr}" passwd; nidump passwd . | grep "^${cusr}:") 2>/dev/null |\
        sed -n -e '1p' | awk -F: '{ print $4; }')`
 cgrp=`(id -gn $cusr) 2>/dev/null ||\
       ((getent group; cat /etc/group; ypcat group; niscat group; nidump group .) 2>/dev/null | grep "^[^:]*:[^:]*:${cgid}:" |\
        sed -n -e '1p' | awk -F: '{ print $1; }')`
 [ ".$cgrp" = . ] && cgrp="$cusr"
 #   determine OpenPKG susr/sgrp
 if [ ".$susr" = . ]; then
     if [ ".$usr" = . ]; then
         susr="$cusr"
     else
         susr="root"
     fi
 fi
 if [ ".$sgrp" = . ]; then
     sgrp=`(id -gn $susr) 2>/dev/null`
     if [ ".$sgrp" = . ]; then
         tgid=`(getent passwd "${susr}"; grep "^${susr}:" /etc/passwd; ypmatch "${susr}" passwd; nismatch "${susr}" passwd; nidump passwd . | grep "^${susr}:") 2>/dev/null |\
               sed -n -e '1p' | awk -F: '{ print $4; }'`
         if [ ".$tgid" != . ]; then
             sgid="${tgid}"
             sgrp=`(getent group; cat /etc/group; ypcat group; niscat group; nidump group .) 2>/dev/null |\
                   grep "^[^:]*:[^:]*:${sgid}:" | sed -n -e '1p' | awk -F: '{ print $1; }'`
         fi
         if [ ".$sgrp" = . ]; then
             sgrp="wheel"
         fi
     fi
 fi
 #   determine OpenPKG musr/mgrp
 if [ ".$musr" = . ]; then
     musr="$usr"
 fi
 if [ ".$musr" = . ]; then
     musr="$cusr"
 fi
 if [ ".$mgrp" = . ]; then
     mgrp=`(id -gn $musr) 2>/dev/null`
     if [ ".$mgrp" = . ]; then
         tgid=`(getent passwd "${musr}"; grep "^${musr}:" /etc/passwd; ypmatch "${musr}" passwd; nismatch "${musr}" passwd; nidump passwd . | grep "^${musr}:") 2>/dev/null |\
               sed -n -e '1p' | awk -F: '{ print $4; }'`
         if [ ".$tgid" != . ]; then
             mgid="${tgid}"
             mgrp=`(getent group; cat /etc/group; ypcat group; niscat group; nidump group .) 2>/dev/null |\
                   grep "^[^:]*:[^:]*:${mgid}:" | sed -n -e '1p' | awk -F: '{ print $1; }'`
         fi
         if [ ".$mgrp" = . ]; then
             mgrp="$grp"
         fi
         if [ ".$mgrp" = . ]; then
             mgrp="$cgrp"
         fi
     fi
 fi
 #   determine OpenPKG rusr/rgrp
 if [ ".$rusr" = . ]; then
     rusr="${usr}-r"
 fi
 if [ ".$rusr" = ".-r" ]; then
     rusr="$cusr"
 fi
 if [ ".$rgrp" = . ]; then
     rgrp=`(id -gn $rusr) 2>/dev/null`
     if [ ".$rgrp" = . ]; then
         tgid=`(getent passwd "${rusr}"; grep "^${rusr}:" /etc/passwd; ypmatch "${rusr}" passwd; nismatch "${rusr}" passwd; nidump passwd . | grep "^${rusr}:") 2>/dev/null |\
               sed -n -e '1p' | awk -F: '{ print $4; }'`
         if [ ".$tgid" != . ]; then
             rgid="${tgid}"
             rgrp=`(getent group; cat /etc/group; ypcat group; nismatch group; nidump group .) 2>/dev/null |\
                   grep "^[^:]*:[^:]*:${rgid}:" | sed -n -e '1p' | awk -F: '{ print $1; }'`
         fi
         if [ ".$rgrp" = . ]; then
             rgrp="${grp}-r"
         fi
         if [ ".$rgrp" = ".-r" ]; then
             rgrp="$cgrp"
         fi
     fi
 fi
 #   determine OpenPKG nusr/ngrp
 if [ ".$nusr" = . ]; then
     nusr="${usr}-n"
 fi
 if [ ".$nusr" = ".-n" ]; then
     nusr="$cusr"
 fi
 if [ ".$ngrp" = . ]; then
     ngrp=`(id -gn $nusr) 2>/dev/null`
     if [ ".$ngrp" = . ]; then
         tgid=`(getent passwd "${nusr}"; grep "^${nusr}:" /etc/passwd; ypmatch "${nusr}" passwd; nismatch "${nusr}" passwd; nidump passwd . | grep "^${nusr}:") 2>/dev/null |\
               sed -n -e '1p' | awk -F: '{ print $4; }'`
         if [ ".$tgid" != . ]; then
             ngid="${tgid}"
             ngrp=`(getent group; cat /etc/group; ypcat group; niscat group; nidump group .) 2>/dev/null |\
                   grep "^[^:]*:[^:]*:${ngid}:" | sed -n -e '1p' | awk -F: '{ print $1; }'`
         fi
         if [ ".$ngrp" = . ]; then
             ngrp="${grp}-n"
         fi
         if [ ".$ngrp" = ".-n" ]; then
             ngrp="$cgrp"
         fi
     fi
 fi
 #   determine OpenPKG suid/sgid
 #   (currently not necessary)
 #   determine OpenPKG muid/mgid
 #   (currently not necessary)
 #   determine OpenPKG ruid/rgid
 #   (currently not necessary)
 #   determine OpenPKG nuid/ngid
 #   (currently not necessary)
 #   print results
 output=""
 for var in \
     susr sgrp \
     musr mgrp \
     rusr rgrp \
     nusr ngrp \
     suid sgid \
     muid mgid \
     ruid rgid \
     nuid ngid; do
     eval "val=\"\$$var\""
     if [ ".$output" = . ]; then
         output="$var=\"$val\""
     else
         output="$output; $var=\"$val\""
     fi
 done
 echo $output

OpenPKG Specs / annotate

openpkg/aux.usrgrp.sh@4a34d7a82eab (annotated)

openpkg/aux.usrgrp.sh