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