openpkg/aux.prereq.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.

     1 #!/bin/sh
     2 ##
     3 ##  aux.prereq.sh -- Platform Pre-Requisite Checks
     4 ##  Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/>
     5 ##  Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/>
     6 ##
     7 ##  Permission to use, copy, modify, and distribute this software for
     8 ##  any purpose with or without fee is hereby granted, provided that
     9 ##  the above copyright notice and this permission notice appear in all
    10 ##  copies.
    11 ##
    12 ##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    13 ##  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    14 ##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    15 ##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
    16 ##  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    17 ##  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    18 ##  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    19 ##  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    20 ##  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    21 ##  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    22 ##  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    23 ##  SUCH DAMAGE.
    24 ##
    25 ##  Usage: aux.prereq.sh source|binary
    26 ##
    28 mode="$1"
    30 #   CHECK: determine platform ids
    31 platform_prod=`sh ./shtool platform -n -L -S "" -C "+" -F "%<ap>-%<sp>"`
    32 platform_tech=`sh ./shtool platform -n -L -S "" -C "+" -F "%<at>-%<st>"`
    33 echo "++ platform product:    $platform_prod"
    34 echo "++ platform technology: $platform_tech"
    36 #
    37 #   CHECK: diskspace requirement
    38 #
    39 if [ ".$mode" = .source ]; then
    40     fs_path="${TMPDIR-/tmp}"
    41     fs_need=150000
    42 else
    43     fs_path="" # FIXME
    44     fs_need=0  # FIXME
    45 fi
    46 fs_free=""
    47 case "$platform_tech" in
    48     *-freebsd* | *-linux* | *-sunos* )
    49        fs_free=`cd $fs_path && /bin/df -k . | sed -n -e '$p' | sed -e 's;^[^ ]*;;' -e 's; *;;' | awk '{ print $3; }'`
    50        ;;
    51 esac
    52 if [ ".$fs_free" != . ]; then
    53     if [ $fs_free -lt $fs_need ]; then
    54         if [ ".$mode" = .source ]; then
    55             echo "ERROR: temporary directory \"$fs_path\" has to reside on a partition" 1>&2
    56             echo "       with at least $fs_need KB of free disk space. Set \$TMPDIR to" 1>&2
    57             echo "       a directory on a partition with enough free disk space, please." 1>&2
    58         else
    59             echo "ERROR: installation directory \"$fs_path\" has to reside on a partition" 1>&2
    60             echo "       with at least $fs_need KB of free disk space. Make \"$fs_path\" a" 1>&2
    61             echo "       symbolic link to a directory on a partition with enough free" 1>&2
    62             echo "       disk space, please." 1>&2
    63         fi
    64         exit 1
    65     fi
    66 fi
    68 #
    69 #   CHECK: available vendor packages
    70 #
    71 #   ...FIXME...
    73 #
    74 #   CHECK: available tools in $PATH
    75 #
    76 #   ...FIXME...
    78 #
    79 #   CHECK: available devices /dev/random, etc.
    80 #
    81 #   ...FIXME...
    83 #
    84 #   CHECK: consistency check for /prefix (symlink!)
    85 #
    86 #   ...FIXME...

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