OpenPKG Specs: openpkg/rc.func@4a34d7a82eab (annotated)

openpkg/rc.func@4a34d7a82eab (annotated)

openpkg/rc.func

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
child 427: 71503088f51b
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.

 ##
 ##  @l_prefix@/etc/rc.func -- Run-Command Helper Functions
 ##  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.
 ##
 ##
 ##  NOTICE: This script is a collection of reusable shell functions
 ##  running under GNU Bash during the execution of OpenPKG run-command
 ##  sections.
 ##
 #
 #   rcMsg (display message)
 #
 #   Usage:       rcMsg [-e] [-w] <message>
 #   Example:     rcMsg -e "invalid command line"
 #   Description: display a regular/warning/error message.
 #
 rcMsg () {
     local prefix="rc:"
     while [ $# -gt 0 ]; do
         case $1 in
             -e ) prefix="${prefix}ERROR:";   shift ;;
             -w ) prefix="${prefix}WARNING:"; shift ;;
             *  ) break ;;
         esac
     done
     echo "${prefix} $*"
     return 0
 }
 #
 #   rcPath (manipulate colon-separated PATH-style variable)
 #
 #   Usage:       rcPath [-a] [-r] [-p] [-e] <var> <dir> [<dir> ...]
 #   Example:     rcPath -a -e PATH /bin /sbin /usr/bin /usr/sbin /usr/ccs/bin
 #   Description: removes (-r) or adds (-a) by appending or prepending
 #                (-p) one or more directories <dir> (optionally have
 #                to be existing if -e is given) to a colon-separated
 #                PATH-style variable <var>. In case a directory already
 #                exists, it is first removed.
 #
 rcPath () {
     local mode=""
     local prepend=0
     local exists=0
     while [ $# -gt 0 ]; do
         case $1 in
             -a ) mode="add";    shift ;;
             -r ) mode="remove"; shift ;;
             -p ) prepend=1;     shift ;;
             -e ) exists=1;      shift ;;
             *  ) break                ;;
         esac
     done
     local var="$1"
     shift
     if [ ".${mode}" = .add ]; then
         local edit_del=""
         local edit_add=""
         local dir
         for dir in "$@"; do
             if [ ".${exists}" = .1 ] && [ ! -d "${dir}" ]; then
                 continue
             fi
             edit_del="${edit_del} -e 's;^${dir}\$;;' -e 's;^${dir}:;;'"
             edit_del="${edit_del} -e 's;:${dir}:;:;' -e 's;:${dir}\$;;'"
             if [ ".${prepend}" = .0 ]; then
                 edit_add="${edit_add} -e 's;\$;:${dir};'"
             else
                 edit_add="-e 's;^;${dir}:;' ${edit_add}"
             fi
         done
         if [ ".${edit_del}${edit_add}" != . ]; then
             eval "${var}=\`echo \"\$${var}\" | sed ${edit_del} ${edit_add}\`"
         fi
         return 0
     elif [ ".${mode}" = .remove ]; then
         local edit=""
         local dir
         for dir in "$@"; do
             edit="${edit} -e 's;^${dir}\$;;' -e 's;^${dir}:;;'"
             edit="${edit} -e 's;:${dir}:;:;' -e 's;:${dir}\$;;'"
         done
         eval "${var}=\`echo \"\$${var}\" | sed ${edit}\`"
         return 0
     else
         rcMsg -e "rcPath: neither add (-a) nor remove (-r) operation specified"
         return 1
     fi
 }
 #
 #   rcTmp (temporary file handling)
 #
 #   Usage:       rcTmp [-i] [-f [-n <name>]] [-k]
 #   Example:     rcTmp -i; tmpfile=`rcTmp -f -n tmp`; ...; rcTmp -k
 #   Description: ???
 #
 rcTmp () {
     local mode=""
     local name=""
     while [ $# -gt 0 ]; do
         case $1 in
             -i ) mode="init"; shift        ;;
             -f ) mode="file"; shift        ;;
             -k ) mode="kill"; shift        ;;
             -n ) name="$2";   shift; shift ;;
             *  ) break                     ;;
         esac
     done
     if [ ".${mode}" = .init ]; then
         if [ ".${RC_TMPDIR}" = . ]; then
             local i=0
             while [ ${i} -lt 10 ]; do
                RC_TMPDIR="@l_prefix@/RPM/TMP/rc-`date '+%Y%m%d%H%M%S'`-$$"
                (umask 022; mkdir ${RC_TMPDIR} >/dev/null 2>&1) && break
                i=$((${i} + 1))
                sleep 1
             done
             if [ ${i} -eq 10 ]; then
                 rcMsg -e "rcTmp: unable to establish secure temporary directory" 1>&2
                 return 1
             fi
             declare -r RC_TMPDIR
         fi
         return 0
     elif [ ".${mode}" = .file ]; then
         echo "${RC_TMPDIR}/${name:-tmp}"
         return 0
     elif [ ".${mode}" = .kill ]; then
         if [ ".${RC_TMPDIR}" = . ]; then
             rcMsg -e "rcTmp: no secure temporary directory known"
             return 1
         else
             rm -rf ${RC_TMPDIR}
             return 0
         fi
     else
         rcMsg -e "rcTmp: neither init (-i), file (-f) nor kill (-k) operation specified"
         return 1
     fi
 }
 #
 #   rcService (check for service status enable/active/usable)
 #
 #   Usage:       rcService <pkg> <service> <val>
 #   Example:     if rcService openssh enable yes; then ...
 #   Description: check <service> of package <pkg> against value <val>.
 #                <service> has to be one of "enable", "active" or "usable".
 #                <val> has to be either "no", "yes", or "unknown".
 #
 rcService () {
     local pkg="`echo ${1} | sed -e 's;-;_;g'`"
     local var="${pkg}_${2}"
     local chk="${3}"
     eval "local val=\$${var}"
     if [ ".${val}" = . ]; then
         eval `@l_prefix@/bin/openpkg rc 2>/dev/null --silent ${1} status || true`
         eval "local val=\$${var}"
     fi
     if [ ".${val}" = ".${chk}" ]; then
         return 0
     else
         return 1
     fi
 }
 #
 #   rcVarIsYes (check variable for positive value)
 #
 #   Usage:       rcVarIsYes <var>
 #   Example:     if rcVarIsYes foo; then ...
 #   Description: check whether a variable <var> contains a positive
 #                value, i.e., the values "yes", "true", "on" or "1" in
 #                arbitrary lower or upper case.
 #
 rcVarIsYes () {
     local var="${1}"
     eval "local val=\"\$${var}\""
     case "${val}" in
         [Yy][Ee][Ss] | [Tt][Rr][Uu][Ee] | [Oo][Nn] | 1 )
             return 0
             ;;
         * )
             return 1
             ;;
     esac
 }

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openpkg/rc.func@4a34d7a82eab (annotated)

openpkg/rc.func