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#! /usr/bin/ksh
#
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
# Copyright 2015, Richard Lowe.
# Verify that aslr messes things up, by comparing the mappings of 2 identical
# processes
LC_ALL=C # Collation is important
/usr/bin/psecflags -s aslr $$
tmpdir=/tmp/test.$$
mkdir $tmpdir
cd $tmpdir
cleanup() {
cd /
rm -fr $tmpdir
}
trap 'cleanup' EXIT
check() {
typeset name=$1
typeset command=$2
for (( i=0; i < 1000; i++ )); do
$command > out.$i
done
cat out.* | sort | uniq -c | sort -nk 1 | nawk '
BEGIN {
tot = 0
colls = 0
}
$2 != "text:" {
tot += $1
if ($1 > 1) {
colls += $1
}
}
END {
prc = (colls / tot) * 100
printf "'$name' Collisions: %d/%d (%g%%)\n", colls, tot, prc
exit prc
}
'
return $?
}
# Somewhat arbitrary
ACCEPTABLE=70
ret=0
check 32bit /opt/os-tests/tests/secflags/addrs-32
(( $? > $ACCEPTABLE )) && ret=1
check 64bit /opt/os-tests/tests/secflags/addrs-64
(( $? > $ACCEPTABLE )) && ret=1
exit $ret
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