:
#
# SPDX-License-Identifier: Beerware
#
# ----------------------------------------------------------------------------
# "THE BEER-WARE LICENSE" (Revision 42):
# <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
# can do whatever you want with this stuff. If we meet some day, and you think
# this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
# ----------------------------------------------------------------------------
#
# Sort options by "Matthew Emmerton" <matt@gsicomp.on.ca>
#
# $FreeBSD$
#
# This shell script will make a cross reference of the symbols of a kernel.
#
COMPILEDIR=/sys/`uname -m`/compile
KERNELNAME=LINT
SORTORDER=-k1
args=`getopt h?k:s: $*`;
if [ $? != 0 ]
then
args="-h";
fi
set -- $args;
for i
do
case "$i"
in
-h|-\?)
echo "Usage: $0 [ -k <kernelname> ] [ -s [ 'symbol' | 'filename' ] ]";
exit 0;
;;
-k)
KERNELNAME=$2
if [ -d ${COMPILEDIR}/${KERNELNAME} ];
then
shift; shift;
continue;
fi
echo "Kernel '$KERNELNAME' does not exist in ${COMPILEDIR}!";
exit 1;
;;
-s)
if [ "x$2" = "xsymbol" ]
then
SORTORDER=-k1
shift; shift;
continue;
fi
if [ "x$2" = "xfilename" ]
then
SORTORDER=-k2
shift; shift;
continue;
fi
echo "Invalid selection for -s: $2";
exit 1;
;;
--)
shift;
break;
;;
esac
done
cd ${COMPILEDIR}/${KERNELNAME}
MOD_OBJS=`find modules -name \*.o`
for i in *.o $MOD_OBJS
do
nm -gon $i
done | sed '
/aicasm.*:/d
/genassym.*:/d
s/.*\///
s/:/ /
' | awk '
NF > 1 {
if ($2 == "t")
next
if ($2 == "F")
next
if ($2 == "U") {
ref[$3]=ref[$3]" "$1
nm[$3]++
} else if ($3 == "D" || $3 == "T" || $3 == "B" || $3 == "R" || $3 == "A") {
if (def[$4] != "")
def[$4]=def[$4]" "$1
else
def[$4]=$1
nm[$4]++
} else if ($2 == "?") {
if (def[$3] == "S")
i++
else if (def[$3] != "")
def[$3]=def[$3]",S"
else
def[$3]="S"
ref[$3]=ref[$3]" "$1
nm[$3]++
} else if ($2 == "C") {
if (def[$3] == $2)
i++
else if (def[$3] == "")
def[$3]=$1
else
ref[$3]=ref[$3]" "$1
nm[$3]++
} else {
print ">>>",$0
}
}
END {
for (i in nm) {
printf "%s {%s} %s\n",i,def[i],ref[i]
}
}
' | sort $SORTORDER | awk '
{
if ($2 == "{S}")
$2 = "<Linker set>"
if (length($3) == 0) {
printf "%-31s %d %s\tUNREF\n",$1,0, $2
N1++
} else if ($2 == "{}") {
printf "%-31s %d {UNDEF}\n",$1, NF-2
N2++
} else {
printf "%-31s %d %s",$1,NF-2,$2
p = 80;
for (i = 3 ; i <= NF; i++) {
if (p+length ($i)+1 > 48) {
printf "\n\t\t\t\t\t%s", $i
p = 7;
} else {
printf " %s", $i
}
p += 1 + length ($i)
}
printf "\n"
N3++
if (NF-2 == 1)
N4++
if (NF-2 == 2)
N5++
}
}
END {
printf "Total symbols: %5d\n",N1+N2+N3
printf "unref symbols: %5d\n",N1
printf "undef symbols: %5d\n",N2
printf "1 ref symbols: %5d\n",N4
printf "2 ref symbols: %5d\n",N5
}
'
