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/scripts/depmod.sh

http://github.com/mirrors/linux
Shell | 53 lines | 40 code | 7 blank | 6 comment | 8 complexity | b1b8ab347d5c3331385763ec35eef92c MD5 | raw file
 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 ; then
14	echo "Warning: modules_install: missing 'System.map' file. Skipping depmod." >&2
15	exit 0
16fi
17
18if [ -z $(command -v $DEPMOD) ]; then
19	echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2
20	echo "This is probably in the kmod package." >&2
21	exit 0
22fi
23
24# older versions of depmod require the version string to start with three
25# numbers, so we cheat with a symlink here
26depmod_hack_needed=true
27tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
28mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
29if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then
30	if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \
31		-e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then
32		depmod_hack_needed=false
33	fi
34fi
35rm -rf "$tmp_dir"
36if $depmod_hack_needed; then
37	symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
38	ln -s "$KERNELRELEASE" "$symlink"
39	KERNELRELEASE=99.98.$KERNELRELEASE
40fi
41
42set -- -ae -F System.map
43if test -n "$INSTALL_MOD_PATH"; then
44	set -- "$@" -b "$INSTALL_MOD_PATH"
45fi
46"$DEPMOD" "$@" "$KERNELRELEASE"
47ret=$?
48
49if $depmod_hack_needed; then
50	rm -f "$symlink"
51fi
52
53exit $ret