mod-depmod24.sh

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