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

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

openpkg/aux.wrapbin.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
 ##
 ##  OpenPKG Binary Bootstrap Package (self-extracting shell script)
 ##  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.
 ##
 #   configuration
 l_me="$0"
 o_help=no
 o_version=no
 o_tar=no
 l_prefix='@l_prefix@'
 l_musr='@MUSR@'
 l_mgrp='@MGRP@'
 l_platform="@l_platform@"
 l_release="@l_release@"
 l_version="@l_version@"
 #   establish standard environment
 PATH="$PATH:/bin:/sbin:/usr/bin:/usr/sbin"
 LC_CTYPE=C
 export LC_CTYPE
 umask 022
 #   parse command line options
 for opt
 do
     case $opt in
         -*=*) arg=`echo "$opt" | sed 's/^[-_a-zA-Z0-9]*=//'` ;;
            *) arg='' ;;
     esac
     case $opt in
         -h | --help    ) o_help=yes     ;;
         -v | --version ) o_version=yes  ;;
         -t | --tar     ) o_tar=yes      ;;
         --prefix=*     ) l_prefix=$arg  ;;
         *              ) o_help=yes     ;;
     esac
 done
 if [ ".$o_version" = .no -a ".$l_prefix" = . ]; then
     o_help=yes
 fi
 if [ ".$o_help" = .yes ]; then
     echo "Usage: sh $l_me" 2>&1
     echo "       [--prefix=<prefix>] [-t|--tar]" 2>&1
     echo "       [-h|--help] [-v|--version]" 2>&1
     exit 1
 fi
 #   make sure all essential installation tools are available
 for tool in sed mkdir dd tar chown chgrp; do
     found=no
     case $tool in
         /* )
             if [ -f $tool ]; then
                 found=yes
             fi
             ;;
         * )
             for p in `IFS=:; echo $PATH`; do
                 if [ -f "$p/$tool" ]; then
                     found=yes
                     break
                 fi
             done
             ;;
     esac
     if [ ".$found" = .no ]; then
         echo "$l_me:ERROR: unable to find installation tool \"$tool\"" 1>&2
         exit 1
     fi
 done
 #   optionally extract the embedded tarball only
 if [ ".$o_tar" = .yes ]; then
     tmpdir="${TMPDIR-/tmp}/openpkg.$$"
     ( umask 077 && mkdir $tmpdir) || exit 1
     dd if=$l_me bs=8192 skip=8 2>/dev/null |\
     ( cd $tmpdir || exit 1
       tar xf - 2>/dev/null || exit 1
       ./openpkg.bzip2 -d -c openpkg.tar.bz2
     ) || exit 1
     rm -rf $tmpdir
     exit 0
 fi
 #   display version and copyright header
 echo "OpenPKG ${l_release} Binary Bootstrap Package, version ${l_version}"
 echo "Built for prefix ${l_prefix} on target platform ${l_platform}"
 if [ ".$o_version" = .yes ]; then
     exit 0
 fi
 #   determine current username
 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 ${LOGNAME-"NN"}`
 #   running the embedded %pre script for hooking into the system environment
 echo "++ hooking OpenPKG instance into system environment"
 prefix="$l_prefix"
 susr='@SUSR@'; sgrp='@SGRP@'
 musr='@MUSR@'; mgrp='@MGRP@'
 rusr='@RUSR@'; rgrp='@RGRP@'
 nusr='@NUSR@'; ngrp='@NGRP@'
 suid='@SUID@'; sgid='@SGID@'
 muid='@MUID@'; mgid='@MGID@'
 ruid='@RUID@'; rgid='@RGID@'
 nuid='@NUID@'; ngid='@NGID@'
 set -- 1 # emulate RPM's $1 when executing scripts
 #   ---- BEGIN EMBEDDED %pre SCRIPT ----
 @PRE@
 #   ---- END EMBEDDED %pre SCRIPT ----
 #   make sure prefix/root directory exists
 #   and has correct permissions and owner/group
 if [ ! -d $l_prefix ]; then
     #   create prefix/root directory from scratch
     echo "++ creating OpenPKG instance root directory \"$l_prefix\""
     d=''
     for c in `IFS=/; echo $l_prefix`; do
         d="$d/$c"
         if [ ! -d $d ]; then
             mkdir $d || exit 1
             chmod 755 $d || exit 1
             if [ ".$cusr" = .root ]; then
                 chown $musr $d >/dev/null 2>&1 || true
                 chgrp $mgrp $d >/dev/null 2>&1 || true
             fi
         fi
     done
 else
     #   adjust already existing prefix/root directory
     echo "++ fixating OpenPKG instance root directory \"$l_prefix\""
     ( cd $l_prefix || exit 1
       chmod 755 . || exit 1
       if [ ".$cusr" = .root ]; then
           chown $musr . >/dev/null 2>&1 || true
           chgrp $mgrp . >/dev/null 2>&1 || true
       fi
     ) || exit 1
 fi
 #   extract and install binary distribution files
 echo "++ extracting OpenPKG binary distribution"
 dd if=$l_me bs=8192 skip=8 2>/dev/null |\
     (cd $l_prefix; tar xf - 2>/dev/null)
 echo "++ installing OpenPKG binary distribution"
 ( cd $l_prefix || exit 1
   ./openpkg.bzip2 -d -c openpkg.tar.bz2 | ./openpkg.tar xf - 2>/dev/null
   rm -f openpkg.tar openpkg.bzip2 openpkg.tar.bz2 >/dev/null 2>&1 || true
 ) || exit 1
 #   fixate installation files
 #   (ATTENTION: order of chgrp/chown and chmod is important because of "set-UID" bits)
 echo "++ fixating OpenPKG instance filesystem hierarchy"
 ( echo 'fixate () {'
   echo '    chgrp "$3" "$4"'
   echo '    chown "$2" "$4"'
   echo '    chmod "$1" "$4"'
   echo '}'
   $l_prefix/bin/openpkg --keep-privileges rpm -q openpkg \
       --qf '[fixate %7.7{FILEMODES:octal} %{FILEUSERNAME:shescape} %{FILEGROUPNAME:shescape} ::%{FILENAMES:shescape}\n]' |\
       grep -v '(none)' | sed 's/^fixate .../fixate /' | sed -e "s; ::\\(.\\)@l_prefix@; \\1$l_prefix;"
 ) | sh 2>/dev/null || true
 #   running the embedded %post script
 echo "++ post-processing OpenPKG bootstrap installation"
 prefix="$l_prefix"
 susr='@SUSR@'; sgrp='@SGRP@'
 musr='@MUSR@'; mgrp='@MGRP@'
 rusr='@RUSR@'; rgrp='@RGRP@'
 nusr='@NUSR@'; ngrp='@NGRP@'
 suid='@SUID@'; sgid='@SGID@'
 muid='@MUID@'; mgid='@MGID@'
 ruid='@RUID@'; rgid='@RGID@'
 nuid='@NUID@'; ngid='@NGID@'
 set -- 1 # emulate RPM's $1 when executing scripts
 #   ---- BEGIN EMBEDDED %post SCRIPT ----
 @POST@
 #   ---- END EMBEDDED %post SCRIPT ----
 #   display final information
 ( echo "Congratulations!"
   echo ""
   echo "You have successfully installed an OpenPKG ${l_release} instance"
   echo "under prefix ${l_prefix} on target platform ${l_platform}."
   echo ""
   echo "For details about this OpenPKG instance, run any of the"
   echo "following typical OpenPKG RPM query commands:"
   echo ""
   echo "    \$ ${l_prefix}/bin/openpkg rpm -qa"
   echo "    \$ ${l_prefix}/bin/openpkg rpm -qi  openpkg"
   echo "    \$ ${l_prefix}/bin/openpkg rpm -qlv openpkg"
   echo ""
   echo "To check the integrity of the entire OpenPKG instance,"
   echo "run the following OpenPKG RPM verify command:"
   echo ""
   echo "    \$ ${l_prefix}/bin/openpkg rpm -Va"
   echo ""
   echo "To install software packages into this OpenPKG instance, run"
   echo "the following two OpenPKG RPM build commands for each package:"
   echo ""
   echo "    \$ ${l_prefix}/bin/openpkg rpm --rebuild /path/to/foo-*.src.rpm"
   echo "    \$ ${l_prefix}/bin/openpkg rpm -Uvh ${l_prefix}/RPM/PKG/foo-*.rpm"
   echo ""
   echo "To remove a software package later, just run:"
   echo ""
   echo "    \$ ${l_prefix}/bin/openpkg rpm -e foo"
   echo ""
   echo "To remove the whole OpenPKG instance under prefix ${l_prefix},"
   echo "just remove every package as shown above. As you finally"
   echo "remove the package \"openpkg\", the OpenPKG instance itself"
   echo "will be unlinked from the system and removed as well."
   echo ""
   echo "Thank you for flying OpenPKG..."
   echo "                                        Ralf S. Engelschall"
   echo "                                        The OpenPKG Project"
   echo "                                        openpkg@openpkg.org"
 ) | $l_prefix/lib/openpkg/rpmtool msg -b -t info
 #   die explicitly just before the shell would discover
 #   that we carry mega-bytes of data with us... ;-)
 exit 0
 #   the distribution tarball is appended in raw format directly to the
 #   end of this script, just leaded by padding whitespaces which make
 #   sure that the tarball data starts at the pre-defined offset of 64KB.
 #   This allows us to unpack the tarball by just skipping the leading
 #   64KB (= 8192*8, see above).

OpenPKG Specs / annotate

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

openpkg/aux.wrapbin.sh