mod-depmod24.sh

   1 #!/bin/sh
   2 DEPMOD24_RCSID='$Revision$ $Date::                            $'
   3
   4 # geninitrd mod: depmod for 2.4 kernel
   5
   6 # Finds module dependencies
   7 #
   8 # @param        $module
   9 # @param        $mode   [silent]
  10 #
  11 # Outputs each dependant module full path.
  12 find_depmod() {
  13         local module="$1"
  14         local mode="$2"
  15
  16         typeset mods module f level depfile first
  17
  18         depfile=/lib/modules/$kernel/modules.dep
  19
  20         if [ ! -f $depfile ]; then
  21                 die "No $depfile! Run depmod and rerun $PROGRAM."
  22         fi
  23
  24         # prepend / if no path given, append $modext.gz if not given,
  25         # quote /
  26         origmodule="$2"
  27         module=$(echo "$2" | \
  28                 awk '/\// {print;next} {print "/" $0}' | \
  29                 awk '/\./ {print;next} {print $0 "'$modext'.gz"}' |
  30                 awk '{gsub("/","\\/");print}')
  31         mods=$(awk '
  32 BEGIN { here = 0 }
  33 /'"$module"':(.*)/ { gsub(/:/," "); gsub(/\\/," "); print; here = 1; next }
  34 /:/ { here = 0 }
  35 /(.*)/ { gsub(/\\/," "); if (here) print }
  36 ' $depfile | xargs)
  37
  38         # fallback to $modext
  39         if [ "$mods" = "" ]; then
  40                 module=$(echo "$module" | awk '{gsub("\'$modext'\.gz$","\'$modext'",$0);print}')
  41                 # ") - vim
  42         fi
  43
  44         mods=$(awk '
  45 BEGIN { here = 0 }
  46 /'"$module"':(.*)/ { gsub(/:/," "); gsub(/\\/," "); print; here = 1; next }
  47 /:/ { here = 0 }
  48 /(.*)/ { gsub(/\\/," "); if (here) print }
  49 ' $depfile | xargs)
  50
  51         if [ "$mods" = "" ]; then
  52                 if [ "$1" != silent ]; then
  53                         warn "$origmodule: module not found in $depfile"
  54                 fi
  55                 if ! is_no "$EXIT_IF_MISSING"; then
  56                         exit 1
  57                 else
  58                         warn "If $origmodule isn't compiled in kernel then this initrd may not start your system."
  59                 fi
  60         fi
  61
  62         level=$3
  63         if [ "$level" = "" ]; then
  64                 level=0
  65         fi
  66         level=$((level + 1))
  67         if [ $level -gt 20 ]; then
  68                 die "$origmodule: cycle in $depfile"
  69         fi
  70
  71         first=
  72         for f in $mods; do
  73                 if [ "$first" = "" ]; then
  74                         first=$f
  75                 else
  76                         find_depmod $1 $f $level
  77                 fi
  78         done
  79
  80         echo $first
  81 }