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✎ Editing: find-provides.ksyms ← Back

#! /bin/bash

IFS=$'\n'

for module in $(grep -E '/lib/modules/.+\.ko(\.gz|\.bz2|\.xz)?$'); do
    tmpfile=""
    if [ "x${module%.ko}" = "x${module}" ]; then
        tmpfile=$(mktemp -t ${0##*/}.XXXXXX.ko)
        proc_bin=
        case "${module##*.}" in
        xz)
                proc_bin=xz
                ;;
        bz2)
                proc_bin=bzip2
                ;;
        gz)
                proc_bin=gzip
                ;;
        esac

[ -n "$proc_bin" ] || continue

"$proc_bin" -d -c - < "$module" > "$tmpfile"
        module="$tmpfile"
    fi

if [[ -n $(nm $module | sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p') ]]; then
        nm $module \
        | sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p' \
        | awk --non-decimal-data '{printf("ksym(%s) = 0x%08x\n", $2, $1)}' \
        | LC_ALL=C sort -u
    else
        ELFRODATA=$(readelf -R .rodata $module | awk '/0x/{printf $2$3$4$5}')
        if [[ -n $(readelf -h $module | grep "little endian") ]]; then
            RODATA=$(echo $ELFRODATA | sed 's/$..$$..$$..$$..$/\4\3\2\1/g')
        else
            RODATA=$ELFRODATA
        fi
        for sym in $(nm $module | sed -r -ne 's:^0*([0-9a-f]+) R __crc_(.+):0x\1 \2:p'); do
            echo $sym $RODATA
        done \
        | awk --non-decimal-data '{printf("ksym(%s) = 0x%08s\n", $2, substr($3,($1*2)+1,8))}' \
        | LC_ALL=C sort -u
    fi

[ -z "$tmpfile" ] || rm -f -- "$tmpfile"
done

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