#!/bin/sh

  # SPDX-License-Identifier: GPL-2.0

  #
  # A depmod wrapper used by the toplevel Makefile

  if test $# -ne 2; then
  	echo "Usage: $0 /sbin/depmod <kernelrelease>" >&2

  	exit 1
  fi
  DEPMOD=$1
  KERNELRELEASE=$2

  if ! test -r System.map ; then

  	echo "Warning: modules_install: missing 'System.map' file. Skipping depmod." >&2

  	exit 0
  fi

  # legacy behavior: "depmod" in /sbin, no /sbin in PATH
  PATH="$PATH:/sbin"

  if [ -z $(command -v $DEPMOD) ]; then

  	echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2

  	echo "This is probably in the kmod package." >&2

  	exit 0

  fi

  # older versions of depmod require the version string to start with three
  # numbers, so we cheat with a symlink here
  depmod_hack_needed=true

  tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
  mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
  if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then
  	if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \
  		-e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then

  		depmod_hack_needed=false
  	fi
  fi

  rm -rf "$tmp_dir"

  if $depmod_hack_needed; then
  	symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
  	ln -s "$KERNELRELEASE" "$symlink"
  	KERNELRELEASE=99.98.$KERNELRELEASE
  fi

  set -- -ae -F System.map
  if test -n "$INSTALL_MOD_PATH"; then
  	set -- "$@" -b "$INSTALL_MOD_PATH"
  fi

  "$DEPMOD" "$@" "$KERNELRELEASE"

  ret=$?
  
  if $depmod_hack_needed; then
  	rm -f "$symlink"
  fi
  
  exit $ret