2 # SPDX-License-Identifier: GPL-2.0
4 # A depmod wrapper used by the toplevel Makefile
7 echo "Usage: $0 /sbin/depmod <kernelrelease> <symbolprefix>" >&2
14 if ! test -r System.map ; then
18 # legacy behavior: "depmod" in /sbin, no /sbin in PATH
20 if [ -z $(command -v $DEPMOD) ]; then
21 echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2
22 echo "This is probably in the kmod package." >&2
26 # older versions of depmod don't support -P <symbol-prefix>
27 # support was added in module-init-tools 3.13
28 if test -n "$SYMBOL_PREFIX"; then
29 release=$("$DEPMOD" --version)
30 package=$(echo "$release" | cut -d' ' -f 1)
31 if test "$package" = "module-init-tools"; then
32 version=$(echo "$release" | cut -d' ' -f 2)
33 later=$(printf '%s\n' "$version" "3.13" | sort -V | tail -n 1)
34 if test "$later" != "$version"; then
35 # module-init-tools < 3.13, drop the symbol prefix
39 if test -n "$SYMBOL_PREFIX"; then
40 SYMBOL_PREFIX="-P $SYMBOL_PREFIX"
44 # older versions of depmod require the version string to start with three
45 # numbers, so we cheat with a symlink here
46 depmod_hack_needed=true
47 tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
48 mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
49 if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then
50 if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \
51 -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then
52 depmod_hack_needed=false
56 if $depmod_hack_needed; then
57 symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
58 ln -s "$KERNELRELEASE" "$symlink"
59 KERNELRELEASE=99.98.$KERNELRELEASE
62 set -- -ae -F System.map
63 if test -n "$INSTALL_MOD_PATH"; then
64 set -- "$@" -b "$INSTALL_MOD_PATH"
66 "$DEPMOD" "$@" "$KERNELRELEASE" $SYMBOL_PREFIX
69 if $depmod_hack_needed; then