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#!/bin/sh
# icf_safe_so_test.sh -- test --icf=safe
# Copyright (C) 2010-2022 Free Software Foundation, Inc.
# Written by Sriraman Tallam <tmsriram@google.com>.
# This file is part of gold.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
# The goal of this program is to verify if --icf=safe works as expected.
# File icf_safe_so_test.cc is in this test. The goal of this script is
# to verify if identical code folding in safe mode correctly folds
# functions in a shared object.
set -e
error_if_symbol_absent()
{
if ! is_symbol_present $1 $2;
then
echo "Symbol" $2 "not present, possibly folded."
exit 1
fi
}
is_symbol_present()
{
grep $2 $1 > /dev/null 2>&1
return $?
}
check_nofold()
{
error_if_symbol_absent $1 $2
error_if_symbol_absent $1 $3
func_addr_1=`grep $2 $1 | awk '{print $1}'`
func_addr_2=`grep $3 $1 | awk '{print $1}'`
if [ $func_addr_1 = $func_addr_2 ];
then
echo "Safe Identical Code Folding folded" $2 "and" $3
exit 1
fi
}
check_fold()
{
map=$1
shift
num_syms=$#
save_IFS="$IFS"
IFS='|'
sym_patt="$*"
IFS="$save_IFS"
awk "
BEGIN { discard = 0; }
/^Discarded input/ { discard = 1; }
/^Memory map/ { discard = 0; }
/.*\\.text\\..*($sym_patt).*/ { act[discard] = act[discard] \" \" \$0; cnt[discard] = cnt[discard] + 1 }
END {
printf \"kept\" act[0] \"\\nfolded\" act[1] \"\\n\";
if (cnt[0] != 1 || cnt[1] != $num_syms - 1)
{
printf \"Safe Identical Code Folding failed\\n\"
exit 1;
}
}" $map
}
arch_specific_safe_fold()
{
if grep -q -e "Advanced Micro Devices X86-64" -e "Intel 80386" -e "ARM" -e "PowerPC" $1;
then
shift
shift
#echo check_fold $*
check_fold $*
else
shift
nm_output=$1
shift
shift
while test $# -gt 1; do
sym1=$1
shift
for sym2 in $*; do
#echo check_nofold $nm_output $sym1 $sym2
check_nofold $nm_output $sym1 $sym2
done
done
fi
}
arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map foo_prot foo_hidden foo_internal foo_static
check_nofold icf_safe_so_test_1.stdout foo_glob bar_glob
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