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Michal Marekfc4da9a2011-06-09 15:35:22 +02001#!/bin/sh
2#
3# A depmod wrapper used by the toplevel Makefile
4
James Hogan8937e892013-02-06 12:56:59 +00005if test $# -ne 3; then
6 echo "Usage: $0 /sbin/depmod <kernelrelease> <symbolprefix>" >&2
Michal Marekfc4da9a2011-06-09 15:35:22 +02007 exit 1
8fi
9DEPMOD=$1
10KERNELRELEASE=$2
James Hogan8937e892013-02-06 12:56:59 +000011SYMBOL_PREFIX=$3
Michal Marekfc4da9a2011-06-09 15:35:22 +020012
Randy Dunlap2d43ff02018-07-01 19:46:06 -070013if ! test -r System.map ; then
Michal Marekfc4da9a2011-06-09 15:35:22 +020014 exit 0
15fi
James Hogan8937e892013-02-06 12:56:59 +000016
Randy Dunlap2d43ff02018-07-01 19:46:06 -070017if [ -z $(command -v $DEPMOD) ]; then
Randy Dunlapa7522802018-08-28 12:59:10 -070018 echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2
Randy Dunlap2d43ff02018-07-01 19:46:06 -070019 echo "This is probably in the kmod package." >&2
Randy Dunlapa7522802018-08-28 12:59:10 -070020 exit 0
Randy Dunlap2d43ff02018-07-01 19:46:06 -070021fi
22
James Hogan8937e892013-02-06 12:56:59 +000023# older versions of depmod don't support -P <symbol-prefix>
24# support was added in module-init-tools 3.13
25if test -n "$SYMBOL_PREFIX"; then
26 release=$("$DEPMOD" --version)
27 package=$(echo "$release" | cut -d' ' -f 1)
28 if test "$package" = "module-init-tools"; then
29 version=$(echo "$release" | cut -d' ' -f 2)
30 later=$(printf '%s\n' "$version" "3.13" | sort -V | tail -n 1)
31 if test "$later" != "$version"; then
32 # module-init-tools < 3.13, drop the symbol prefix
33 SYMBOL_PREFIX=""
34 fi
35 fi
36 if test -n "$SYMBOL_PREFIX"; then
37 SYMBOL_PREFIX="-P $SYMBOL_PREFIX"
38 fi
39fi
40
Michal Marekbfe54242011-06-09 16:35:41 +020041# older versions of depmod require the version string to start with three
42# numbers, so we cheat with a symlink here
43depmod_hack_needed=true
Michal Marek8fc62e52011-07-12 11:54:48 +020044tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
45mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
46if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then
47 if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \
48 -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then
Michal Marekbfe54242011-06-09 16:35:41 +020049 depmod_hack_needed=false
50 fi
51fi
Michal Marek8fc62e52011-07-12 11:54:48 +020052rm -rf "$tmp_dir"
Michal Marekbfe54242011-06-09 16:35:41 +020053if $depmod_hack_needed; then
54 symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
55 ln -s "$KERNELRELEASE" "$symlink"
56 KERNELRELEASE=99.98.$KERNELRELEASE
57fi
58
Michal Marekfc4da9a2011-06-09 15:35:22 +020059set -- -ae -F System.map
60if test -n "$INSTALL_MOD_PATH"; then
61 set -- "$@" -b "$INSTALL_MOD_PATH"
62fi
James Hogan8937e892013-02-06 12:56:59 +000063"$DEPMOD" "$@" "$KERNELRELEASE" $SYMBOL_PREFIX
Michal Marekbfe54242011-06-09 16:35:41 +020064ret=$?
65
66if $depmod_hack_needed; then
67 rm -f "$symlink"
68fi
69
70exit $ret