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Commit | Line | Data |
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fc4da9a3 | 1 | #!/bin/sh |
b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
fc4da9a3 MM |
3 | # |
4 | # A depmod wrapper used by the toplevel Makefile | |
5 | ||
8937e897 JH |
6 | if test $# -ne 3; then |
7 | echo "Usage: $0 /sbin/depmod <kernelrelease> <symbolprefix>" >&2 | |
fc4da9a3 MM |
8 | exit 1 |
9 | fi | |
10 | DEPMOD=$1 | |
11 | KERNELRELEASE=$2 | |
8937e897 | 12 | SYMBOL_PREFIX=$3 |
fc4da9a3 | 13 | |
ddf88ae5 | 14 | if ! test -r System.map ; then |
fc4da9a3 MM |
15 | exit 0 |
16 | fi | |
8937e897 | 17 | |
ddf88ae5 | 18 | if [ -z $(command -v $DEPMOD) ]; then |
d8a91550 | 19 | echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2 |
ddf88ae5 | 20 | echo "This is probably in the kmod package." >&2 |
d8a91550 | 21 | exit 0 |
ddf88ae5 RD |
22 | fi |
23 | ||
8937e897 JH |
24 | # older versions of depmod don't support -P <symbol-prefix> |
25 | # support was added in module-init-tools 3.13 | |
26 | if test -n "$SYMBOL_PREFIX"; then | |
27 | release=$("$DEPMOD" --version) | |
28 | package=$(echo "$release" | cut -d' ' -f 1) | |
29 | if test "$package" = "module-init-tools"; then | |
30 | version=$(echo "$release" | cut -d' ' -f 2) | |
31 | later=$(printf '%s\n' "$version" "3.13" | sort -V | tail -n 1) | |
32 | if test "$later" != "$version"; then | |
33 | # module-init-tools < 3.13, drop the symbol prefix | |
34 | SYMBOL_PREFIX="" | |
35 | fi | |
36 | fi | |
37 | if test -n "$SYMBOL_PREFIX"; then | |
38 | SYMBOL_PREFIX="-P $SYMBOL_PREFIX" | |
39 | fi | |
40 | fi | |
41 | ||
bfe5424a MM |
42 | # older versions of depmod require the version string to start with three |
43 | # numbers, so we cheat with a symlink here | |
44 | depmod_hack_needed=true | |
8fc62e59 MM |
45 | tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX) |
46 | mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE" | |
47 | if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then | |
48 | if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \ | |
49 | -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then | |
bfe5424a MM |
50 | depmod_hack_needed=false |
51 | fi | |
52 | fi | |
8fc62e59 | 53 | rm -rf "$tmp_dir" |
bfe5424a MM |
54 | if $depmod_hack_needed; then |
55 | symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE" | |
56 | ln -s "$KERNELRELEASE" "$symlink" | |
57 | KERNELRELEASE=99.98.$KERNELRELEASE | |
58 | fi | |
59 | ||
fc4da9a3 MM |
60 | set -- -ae -F System.map |
61 | if test -n "$INSTALL_MOD_PATH"; then | |
62 | set -- "$@" -b "$INSTALL_MOD_PATH" | |
63 | fi | |
8937e897 | 64 | "$DEPMOD" "$@" "$KERNELRELEASE" $SYMBOL_PREFIX |
bfe5424a MM |
65 | ret=$? |
66 | ||
67 | if $depmod_hack_needed; then | |
68 | rm -f "$symlink" | |
69 | fi | |
70 | ||
71 | exit $ret |