blob: 122599b1c13b7d4ca14b4e9ff637ec19789f3e64 [file] [log] [blame]
Kyle Swenson8d8f6542021-03-15 11:02:55 -06001#!/bin/sh
2#
3# A depmod wrapper used by the toplevel Makefile
4
5if test $# -ne 3; then
6 echo "Usage: $0 /sbin/depmod <kernelrelease> <symbolprefix>" >&2
7 exit 1
8fi
9DEPMOD=$1
10KERNELRELEASE=$2
11SYMBOL_PREFIX=$3
12
13if ! test -r System.map -a -x "$DEPMOD"; then
14 exit 0
15fi
16
17# older versions of depmod don't support -P <symbol-prefix>
18# support was added in module-init-tools 3.13
19if test -n "$SYMBOL_PREFIX"; then
20 release=$("$DEPMOD" --version)
21 package=$(echo "$release" | cut -d' ' -f 1)
22 if test "$package" = "module-init-tools"; then
23 version=$(echo "$release" | cut -d' ' -f 2)
24 later=$(printf '%s\n' "$version" "3.13" | sort -V | tail -n 1)
25 if test "$later" != "$version"; then
26 # module-init-tools < 3.13, drop the symbol prefix
27 SYMBOL_PREFIX=""
28 fi
29 fi
30 if test -n "$SYMBOL_PREFIX"; then
31 SYMBOL_PREFIX="-P $SYMBOL_PREFIX"
32 fi
33fi
34
35# older versions of depmod require the version string to start with three
36# numbers, so we cheat with a symlink here
37depmod_hack_needed=true
38tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
39mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
40if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then
41 if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \
42 -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then
43 depmod_hack_needed=false
44 fi
45fi
46rm -rf "$tmp_dir"
47if $depmod_hack_needed; then
48 symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
49 ln -s "$KERNELRELEASE" "$symlink"
50 KERNELRELEASE=99.98.$KERNELRELEASE
51fi
52
53set -- -ae -F System.map
54if test -n "$INSTALL_MOD_PATH"; then
55 set -- "$@" -b "$INSTALL_MOD_PATH"
56fi
57"$DEPMOD" "$@" "$KERNELRELEASE" $SYMBOL_PREFIX
58ret=$?
59
60if $depmod_hack_needed; then
61 rm -f "$symlink"
62fi
63
64exit $ret