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@@ -2,19 +2,47 @@
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IFS=$'\n'
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+ # Extract all of the symbols provided by this module.
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all_provides() {
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- nm "$@" \
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- | sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):\1\t\2:p' \
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- | sort -k2 -u
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+ if [[ -n $(nm "$@" | sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p') ]]; then
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+ nm "$@" \
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+ | sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p' \
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+ | awk --non-decimal-data '{printf("0x%08x\t%s\n", $1, $2)}' \
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+ | LC_ALL=C sort -k2,2 -u
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+ else
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+ ELFRODATA=$(readelf -R .rodata "$@" | awk '/0x/{printf $2$3$4$5}')
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+ if [[ -n $(readelf -h "$@" | grep "little endian") ]]; then
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+ RODATA=$(echo $ELFRODATA | sed 's/\(..\)\(..\)\(..\)\(..\)/\4\3\2\1/g')
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+ else
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+ RODATA=$ELFRODATA
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+ fi
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+ for sym in $(nm "$@" | sed -r -ne 's:^0*([0-9a-f]+) R __crc_(.+):0x\1 \2:p'); do
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+ echo $sym $RODATA
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+ done \
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+ | awk --non-decimal-data '{printf("0x%08s\t%s\n", substr($3,($1*2)+1,8), $2)}' \
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+ | LC_ALL=C sort -k2,2 -u
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+ fi
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}
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+ # Extract all of the requirements of this module.
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all_requires() {
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for module in "$@"; do
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set -- $(/sbin/modinfo -F vermagic "$module" | sed -e 's: .*::' -e q)
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/sbin/modprobe --dump-modversions "$module" \
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- | sed -r -e 's:^0x0*::' -e 's:$:\t'"$1"':'
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+ | awk --non-decimal-data '
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+ BEGIN { FS = "\t" ; OFS = "\t" }
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+ {printf("0x%08x\t%s\n", $1, $2)}' \
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+ | sed -r -e 's:$:\t'"$1"':'
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done \
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- | sort -k2 -u
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+ | LC_ALL=C sort -k2,2 -u
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+ }
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+
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+ # Filter out requirements fulfilled by the module itself.
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+ mod_requires() {
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+ LC_ALL=C join -t $'\t' -j 2 -v 1 \
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+ <(all_requires "$@") \
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+ <(all_provides "$@") \
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+ | LC_ALL=C sort -k1,1 -u
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}
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if ! [ -e /sbin/modinfo -a -e /sbin/modprobe ]; then
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@@ -24,25 +52,23 @@
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modules=($(grep -E '/lib/modules/.+\.ko$'))
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if [ ${#modules[@]} -gt 0 ]; then
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- symset_table=$(mktemp -t ${0##*/}.XXXXX)
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- /usr/lib/rpm/redhat/symset-table | sort > $symset_table
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-
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- join -t $'\t' -j 1 -a 2 $symset_table <(
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- # Filter out requirements that we fulfill ourself.
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- join -t $'\t' -j 2 -v 1 \
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- <(all_requires "${modules[@]}") \
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- <(all_provides "${modules[@]}") \
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- | awk '
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+ kernel=$(/sbin/modinfo -F vermagic "${modules[0]}" | sed -e 's: .*::' -e q)
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+
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+ # get all that kernel provides
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+ symvers=$(mktemp -t ${0##*/}.XXXXX)
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+
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+ cat /usr/src/kernels/$kernel/Module.symvers | awk '
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BEGIN { FS = "\t" ; OFS = "\t" }
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- { print $3 "/" $2 "/" $1 }
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- ' \
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- | sort -u) \
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- | sort -u \
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- | awk '
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- { FS = "\t" ; OFS = "\t" }
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- NF == 3 { print "kernel(" $2 ") = " $3
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- next }
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- { split($1, arr, "/")
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- print "ksym(" arr[3] ") = " arr[2] }
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- '
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+ { print $2 "\t" $1 }
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+ ' \
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+ | sed -r -e 's:$:\t'"$kernel"':' \
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+ | LC_ALL=C sort -k1,1 -u > $symvers
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+
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+ # Symbols matching with the kernel get a "kernel" dependency
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+ LC_ALL=C join -t $'\t' -j 1 $symvers <(mod_requires "${modules[@]}") | LC_ALL=C sort -u \
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+ | awk '{ FS = "\t" ; OFS = "\t" } { print "kernel(" $1 ") = " $2 }'
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+
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+ # Symbols from elsewhere get a "ksym" dependency
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+ LC_ALL=C join -t $'\t' -j 1 -v 2 $symvers <(mod_requires "${modules[@]}") | LC_ALL=C sort -u \
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+ | awk '{ FS = "\t" ; OFS = "\t" } { print "ksym(" $1 ") = " $2 }'
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fi
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ignatenkobrain commented 6 years ago
why not
if [ -n "$(…)" ]?