LXR linux/scripts/depmod.sh

   1#!/bin/sh
   2# SPDX-License-Identifier: GPL-2.0
   3#
   4# A depmod wrapper used by the toplevel Makefile
   5
   6if test $# -ne 2; then
   7        echo "Usage: $0 /sbin/depmod <kernelrelease>" >&2
   8        exit 1
   9fi
  10DEPMOD=$1
  11KERNELRELEASE=$2
  12
  13if ! test -r System.map -a -x "$DEPMOD"; then
  14        exit 0
  15fi
  16
  17# older versions of depmod require the version string to start with three
  18# numbers, so we cheat with a symlink here
  19depmod_hack_needed=true
  20tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
  21mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
  22if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then
  23        if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \
  24                -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then
  25                depmod_hack_needed=false
  26        fi
  27fi
  28rm -rf "$tmp_dir"
  29if $depmod_hack_needed; then
  30        symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
  31        ln -s "$KERNELRELEASE" "$symlink"
  32        KERNELRELEASE=99.98.$KERNELRELEASE
  33fi
  34
  35set -- -ae -F System.map
  36if test -n "$INSTALL_MOD_PATH"; then
  37        set -- "$@" -b "$INSTALL_MOD_PATH"
  38fi
  39"$DEPMOD" "$@" "$KERNELRELEASE"
  40ret=$?
  41
  42if $depmod_hack_needed; then
  43        rm -f "$symlink"
  44fi
  45
  46exit $ret
  47