xref: /linux/scripts/depmod.sh (revision 861e10be08c69808065d755d3e3cab5d520a2d32)
1#!/bin/sh
2#
3# A depmod wrapper used by the toplevel Makefile
4
5if test $# -ne 2; then
6	echo "Usage: $0 /sbin/depmod <kernelrelease>" >&2
7	exit 1
8fi
9DEPMOD=$1
10KERNELRELEASE=$2
11
12if ! test -r System.map -a -x "$DEPMOD"; then
13	exit 0
14fi
15# older versions of depmod require the version string to start with three
16# numbers, so we cheat with a symlink here
17depmod_hack_needed=true
18tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
19mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
20if "$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/$KERNELRELEASE/modules.dep.bin"; then
23		depmod_hack_needed=false
24	fi
25fi
26rm -rf "$tmp_dir"
27if $depmod_hack_needed; then
28	symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
29	ln -s "$KERNELRELEASE" "$symlink"
30	KERNELRELEASE=99.98.$KERNELRELEASE
31fi
32
33set -- -ae -F System.map
34if test -n "$INSTALL_MOD_PATH"; then
35	set -- "$@" -b "$INSTALL_MOD_PATH"
36fi
37"$DEPMOD" "$@" "$KERNELRELEASE"
38ret=$?
39
40if $depmod_hack_needed; then
41	rm -f "$symlink"
42fi
43
44exit $ret
45