scripts/depmod.sh

   1 #!/bin/sh
   2 #
   3 # A depmod wrapper used by the toplevel Makefile
   4
   5 if test $# -ne 2; then
   6         echo "Usage: $0 /sbin/depmod <kernelrelease>" >&2
   7         exit 1
   8 fi
   9 DEPMOD=$1
  10 KERNELRELEASE=$2
  11
  12 if ! test -r System.map -a -x "$DEPMOD"; then
  13         exit 0
  14 fi
  15 # older versions of depmod require the version string to start with three
  16 # numbers, so we cheat with a symlink here
  17 depmod_hack_needed=true
  18 tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
  19 mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
  20 if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then
  21         if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \
  22                 -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then
  23                 depmod_hack_needed=false
  24         fi
  25 fi
  26 rm -rf "$tmp_dir"
  27 if $depmod_hack_needed; then
  28         symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
  29         ln -s "$KERNELRELEASE" "$symlink"
  30         KERNELRELEASE=99.98.$KERNELRELEASE
  31 fi
  32
  33 set -- -ae -F System.map
  34 if test -n "$INSTALL_MOD_PATH"; then
  35         set -- "$@" -b "$INSTALL_MOD_PATH"
  36 fi
  37 "$DEPMOD" "$@" "$KERNELRELEASE"
  38 ret=$?
  39
  40 if $depmod_hack_needed; then
  41         rm -f "$symlink"
  42 fi
  43
  44 exit $ret