src/config/linux-version

   1 #!/bin/sh
   2 # Copyright 2000, International Business Machines Corporation and others.
   3 # All Rights Reserved.
   4 #
   5 # This software has been released under the terms of the IBM Public
   6 # License.  For details, see the LICENSE file in the top-level source
   7 # directory or online at http://www.openafs.org/dl/license10.html
   8
   9 # Verify that this build machine has the required header files for the
  10 # kernel versions specified in LINUX_VERS.
  11 #
  12 # The following critical variables are passed in from ./Makefile:
  13 #
  14 #   LINUX_SRCDIR="/usr/src/linux-"
  15 #   LINUX_VERS="2.2.5-15 2.2.10 2.2.12 2.2.12-20 2.2.13 2.2.14"
  16 #
  17 # To add support for a new Linux kernel rev, msut therefore add it to
  18 # $LINUX_VERS in ./Makefile and create $LINUX_SRCDIR$VERS, populating
  19 # the latter with header files including a version of the include file
  20 # $LINUX_SRCDIR$VERS/include/linux/version.h  containing the appropriate
  21 # UTS_RELEASE definition.
  22 #
  23
  24 # The following two tests are done so that "make install" can be executed
  25 # directly from the config directory.
  26 if [ -z "$LINUX_VERS" ]; then
  27         echo LINUX_VERS is not set. Not testing header links for kernel build.
  28         exit 0
  29 fi
  30
  31 if [ -z "$LINUX_SRCDIR" ]; then
  32         echo "LINUX_SRCDIR is not set. Not testing header links for kernel build."
  33         exit 0
  34 fi
  35
  36 errors="false"
  37 found_one="false"
  38 CAN_BUILD=""
  39
  40 for VERS in $LINUX_VERS ; do
  41         dir=$LINUX_SRCDIR$VERS
  42         if [ ! -d $dir ] ; then
  43             dir=$LINUX_SRCDIR
  44             if [ ! -d $dir ] ; then
  45                 echo "ERROR: Cannot build for Linux kernel $VERS: $dir does not exist."
  46                 errors=true
  47                 continue
  48             fi
  49         fi
  50         header=$LINUX_SRCDIR$VERS/include/linux/version.h
  51         if [ ! -f $header ] ; then
  52             header=$LINUX_SRCDIR/include/linux/version.h
  53             if [ ! -f $header ] ; then
  54                 echo "ERROR: Cannot build for Linux kernel $VERS: $header does not exist."
  55                 errors=true
  56                 continue
  57             fi
  58         fi
  59
  60         vers=`fgrep UTS_RELEASE "$header" |
  61                 awk 'BEGIN { FS="\"" } { print $2 }'`
  62         if [ "x$vers" = "x" ] ; then
  63             echo "ERROR: Cannot build for Linux kernel $VERS:"
  64             echo "       No UTS_RELEASE string found in $header."
  65             continue
  66         elif [ "$VERS" != "$vers" ] ; then
  67 # Redhat kernel source has the problem that they create one version.h for
  68 # all their builds; So, we have to be creative here.
  69 #           echo "ERROR: Cannot build $VERS. Wrong version '('$vers')' in $header."
  70 #           errors=true
  71 #           continue
  72             errors=true
  73             for subvers in $vers ; do
  74                 if [ "x$subvers" = "x$VERS" ] ; then
  75                     errors=false
  76                     continue
  77                 fi
  78             done
  79         fi
  80         CAN_BUILD="$CAN_BUILD $VERS"
  81         found_one="true"
  82 done
  83
  84 if [ "x$errors" = "xtrue" ] ; then
  85     echo "ERROR: Should be able to build at least one of $LINUX_VERS."
  86     if [ "x$found_one" = "xtrue" ] ; then
  87         echo "       Cannot build all kernels. Only set up for $CAN_BUILD."
  88     else
  89         echo "       Valid headers not present for any Linux kernel."
  90         exit -1
  91     fi
  92 fi
  93
  94 exit 0