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

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

openpkg/aux.wrapsrc.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 Source 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="$0"
 o_help=no
 o_version=no
 o_tar=no
 l_prefix='/openpkg'
 l_dir='@l_dir@'
 l_release="@l_release@"
 l_version="@l_version@"
 #   establish standard environment
 PATH="$PATH:/bin:/sbin:/usr/bin:/usr/sbin"
 LC_CTYPE=C
 export LC_CTYPE
 umask 022
 #   pre-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 ;;
     esac
 done
 if [ ".$o_help" = .yes ]; then
     echo "Usage: sh $l_me" 2>&1
     echo "       [--prefix=<prefix>] [--tag=<str>]" 2>&1
     echo "       [--user=<usr>] [--group=<grp>]" 2>&1
     echo "       [--{s,m,r,n}usr=<usr>] [--{s,m,r,n}grp=<grp>]" 2>&1
     echo "       [--{s,m,r,n}uid=<uid>] [--{s,m,r,n}gid=<gid>]" 2>&1
     echo "       [--use_tar=<tar>] [--use_make=<make>] [--use_cc=<cc>]" 2>&1
     echo "       [--use_ar=<ar>] [--use_ld=<ld>] [--use_as=<as>] [--use_strip=<strip>]" 2>&1
     echo "       [-t|--tar] [-h|--help] [-v|--version]" 2>&1
     exit 1
 fi
 #   make sure all essential unpacking tools are available
 #   (the build tools are checked later from within openpkg.spec)
 for tool in /bin/sh mkdir cat tar rm chown chgrp sed dd; 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 "$l_me:ERROR: unable to find bootstrap tool \"$tool\"" 1>&2
         exit 1
     fi
 done
 #   optionally extract the embedded tarball only
 if [ ".$o_tar" = .yes ]; then
     dd if=$l_me bs=8192 skip=8 2>/dev/null
     exit 0
 fi
 #   display version and copyright header
 echo "OpenPKG ${l_release} Source Bootstrap Package, version ${l_version}"
 if [ ".$o_version" = .yes ]; then
     exit 0
 fi
 echo "Building for prefix ${l_prefix} on current platform"
 #   determine current user/group
 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 -e 'q' | 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 -e 'q' | awk -F: '{ print $1; }')`
 if [ ".$cgrp" = . ]; then
     cgrp="$cusr"
 fi
 #   extract the source distribution files
 echo "++ extracting OpenPKG source distribution"
 rm -rf $l_dir >/dev/null 2>&1
 mkdir $l_dir || exit 1
 dd if=$l_me bs=8192 skip=8 2>/dev/null | (cd $l_dir; tar xf - 2>/dev/null)
 if [ ".$cusr" = .root ]; then
     ( cd $l_dir || exit 1
       chown -R -h $cusr . >/dev/null 2>&1 || true
       chgrp -R -h $cgrp . >/dev/null 2>&1 || true
     ) || exit 1
 fi
 if [ ! -f $l_dir/openpkg.boot ]; then
     echo "$l_me:ERROR: failed to unpack into directory \"$l_dir\"" 1>&2
     exit 1
 fi
 #   perform bootstrap procedure
 echo "++ building OpenPKG binary distribution"
 ( cd $l_dir || exit 1
   ./openpkg.boot ${1+"$@"} || exit 1
 ) || exit 1
 #   cleanup
 rm -rf $l_dir >/dev/null 2>&1
 #   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).

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

openpkg/aux.wrapsrc.sh