58 lines
1.2 KiB
Plaintext
58 lines
1.2 KiB
Plaintext
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#! /bin/sh
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# Generate a Module.symvers-like list of symbols a module exports.
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usage() {
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echo "USAGE: ${0##*/} [-n name] objfile" >&2
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exit 1
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}
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options=`getopt -o n: -- "$@"`
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[ $? -eq 0 ] || usage
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eval set -- "$options"
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while :; do
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case "$1" in
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-n)
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opt_n=$2
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shift
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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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shift
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done
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[ $# -eq 1 ] || usage
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if [ -z "$opt_n" ]; then
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opt_n=${1%.ko}
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opt_n=${opt_n#*/kernel/}
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fi
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objdump -t "$1" | awk '
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BEGIN { known_types["__ksymtab"] = "EXPORT_SYMBOL"
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known_types["__ksymtab_unused"] = "EXPORT_UNUSED_SYMBOL"
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known_types["__ksymtab_gpl"] = "EXPORT_SYMBOL_GPL"
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known_types["__ksymtab_unused_gpl"] = "EXPORT_UNUSED_SYMBOL_GPL"
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known_types["__ksymtab_gpl_future"] = "EXPORT_SYMBOL_GPL_FUTURE"
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}
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{ if (NF < 3)
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next
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if (substr($0, index($0, " ") + 6, 1) == "d")
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next # debug symbol
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if (gsub(/^__crc_/, "", $NF))
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crcs[$NF] = gensub(/^00000000(.+)/, "\\1", "", $1)
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else if (gsub(/^__ksymtab_/, "", $NF) &&
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($(NF-2) in known_types))
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types[$NF] = known_types[$(NF-2)]
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}
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END { for (sym in types) {
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crc = (sym in crcs ? crcs[sym] : "00000000")
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print "0x" crc "\t" sym "\t" module "\t" types[sym]
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}
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}
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' module="$opt_n"
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