| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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 ; then |
| 15 | exit 0 |
| 16 | fi |
| 17 | |
| 18 | if [ -z $(command -v $DEPMOD) ]; then |
| 19 | echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2 |
| 20 | echo "This is probably in the kmod package." >&2 |
| 21 | exit 0 |
| 22 | fi |
| 23 | |
| 24 | # older versions of depmod don't support -P <symbol-prefix> |
| 25 | # support was added in module-init-tools 3.13 |
| 26 | if test -n "$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 $SYMBOL_PREFIX" |
| 39 | fi |
| 40 | fi |
| 41 | |
| 42 | # older versions of depmod require the version string to start with three |
| 43 | # numbers, so we cheat with a symlink here |
| 44 | depmod_hack_needed=true |
| 45 | tmp_dir=$(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/$KERNELRELEASE/modules.dep.bin"; then |
| 50 | depmod_hack_needed=false |
| 51 | fi |
| 52 | fi |
| 53 | rm -rf "$tmp_dir" |
| 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 | |
| 60 | set -- -ae -F System.map |
| 61 | if test -n "$INSTALL_MOD_PATH"; then |
| 62 | set -- "$@" -b "$INSTALL_MOD_PATH" |
| 63 | fi |
| 64 | "$DEPMOD" "$@" "$KERNELRELEASE" $SYMBOL_PREFIX |
| 65 | ret=$? |
| 66 | |
| 67 | if $depmod_hack_needed; then |
| 68 | rm -f "$symlink" |
| 69 | fi |
| 70 | |
| 71 | exit $ret |