forked from pool/kernel-source
166 lines
3.1 KiB
Plaintext
166 lines
3.1 KiB
Plaintext
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#! /bin/bash
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LC_ALL=POSIX
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usage() {
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cat <<EOF
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Usage: ${0##*/} [-i module] [-x module] [-Nv] {module|rpm} ...
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-i Include the specified modules (glob expression).
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-x Exclude the specified modules (glob expression).
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-N Don't try to combine modalias tags that only differ in one character.
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-v Verbose: report which modules define which aliases.
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EOF
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exit $1
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}
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ARGS=("$@")
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options=`getopt -o i:x:vNh -- "$@"`
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if [ $? -ne 0 ]
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then
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usage 2
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fi
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eval set -- "$options"
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opt_combine=1
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while :; do
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case "$1" in
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-i)
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include="$include ${2%.ko}"
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shift 2
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;;
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-x)
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exclude="$exclude ${2%.ko}"
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shift 2
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;;
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-v)
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opt_verbose=1
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shift ;;
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-N)
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opt_combine=
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shift ;;
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-h)
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usage 0
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;;
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--)
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shift
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break
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;;
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esac
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done
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process_module() {
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declare module=$1 base=${1##*/} aliases
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if [ -n "$include" ]; then
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included=
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for x in $include; do
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eval "case \"\${base%.ko}\" in (${x%.ko}) included=1;; esac"
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done
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else
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included=1
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fi
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for x in $exclude; do
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eval "case \"\${base%.ko}\" in (${x%.ko}) included=;; esac"
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done
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[ -n "$included" ] || return
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aliases="$(/sbin/modinfo -F alias "$module" \
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| sed -nre 's@^.+:.+$@Supplements: modalias(&)@p')"
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if [ -n "$aliases" ]; then
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eval "processed_module_${base//[^a-zA-Z0-9_]/_}=$base"
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echo "$aliases" \
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| if [ -n "$opt_verbose" ]; then
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sed -e "s@\$@ # $base@"
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else
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cat
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fi
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fi
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}
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print_modaliases() {
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declare class=$1 variants=$2 pos=$3
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if [ -n "$variants" ]; then
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echo "${class:0:pos}[$variants]${class:pos+1}"
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else
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[ -z "$class" ] || echo "$class"
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fi
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}
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combine_modaliases() {
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declare tag class variants pos n
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read class
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while read tag; do
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for ((n=0; n<${#class}; n++)); do
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if [ "*" != "${class:n:1}" -a \
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"${class:0:n}" = "${tag:0:n}" -a \
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"${class:n+1}" = "${tag:n+1}" ] &&
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( [ -z "$pos" ] || [ $n = $pos ] ); then
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variants="${variants:-${class:n:1}}${tag:n:1}"
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pos=$n
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break
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fi
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done
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if [ $n -eq ${#class} ]; then
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print_modaliases "$class" "$variants" "$pos"
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variants=
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pos=
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class=$tag
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fi
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done
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print_modaliases "$class" "$variants" "$pos"
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}
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tmp=$(mktemp -t ${0##*/}.XXXXXX)
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trap "rm -f $tmp" EXIT
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for file in "$@"; do
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case "$(file -b "$file")" in
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RPM*)
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tmpdir=$(mktemp -td ${0##*/}.XXXXXX)
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rpm2cpio "$file" | ( cd $tmpdir && cpio -dim --quiet )
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for module in $(find $tmpdir -type f -name '*.ko'); do
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process_module "$module" >> $tmp
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done
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rm -rf $tmpdir
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;;
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ELF*)
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process_module "$file" >> $tmp
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;;
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*)
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if [ -e "$file" ]; then
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echo "File type of $file not supported" >&2
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exit 1
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fi
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file2=$(/sbin/modinfo -F filename "${file%.ko}")
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if ! [ -e "$file2" ]; then
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echo "No module $file found" >&2
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exit 1
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fi
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process_module "$file2" >> $tmp
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;;
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esac
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done
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if [ -n "${!processed_module_*}" ]; then
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echo "# Modules:" $(for m in ${!processed_module_*}; do echo ${!m}; done \
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| sort -u)
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sort -u $tmp \
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| if [ -n "$opt_combine" ]; then
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combine_modaliases
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else
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cat
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fi
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echo "# Generated with: ${0##*/} ${ARGS[*]}"
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fi
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# vim:softtabstop=4 shiftwidth=4
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