1#!/bin/sh
2
3# icf_safe_pie_test.sh -- test --icf=safe -pie
4
5# Copyright (C) 2009-2017 Free Software Foundation, Inc.
6# Written by Sriraman Tallam <tmsriram@google.com>.
7# Modified by Rahul Chaudhry <rahulchaudhry@google.com>.
8
9# This file is part of gold.
10
11# This program is free software; you can redistribute it and/or modify
12# it under the terms of the GNU General Public License as published by
13# the Free Software Foundation; either version 3 of the License, or
14# (at your option) any later version.
15
16# This program is distributed in the hope that it will be useful,
17# but WITHOUT ANY WARRANTY; without even the implied warranty of
18# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19# GNU General Public License for more details.
20
21# You should have received a copy of the GNU General Public License
22# along with this program; if not, write to the Free Software
23# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
24# MA 02110-1301, USA.
25
26# The goal of this program is to verify if --icf=safe works with
27# -pie as expected. File icf_safe_test.cc is in this test. This
28# program checks if only ctors and dtors are folded, except for
29# the architectures which use relocation types and instruction
30# opcodes to detect if function pointers are taken.
31
32set -e
33
34check_nofold()
35{
36    func_addr_1=`grep $2 $1 | awk '{print $1}'`
37    func_addr_2=`grep $3 $1 | awk '{print $1}'`
38    if [ $func_addr_1 = $func_addr_2 ]
39    then
40        echo "Safe Identical Code Folding folded" $2 "and" $3
41	exit 1
42    fi
43}
44
45check_fold()
46{
47    awk "
48BEGIN { discard = 0; }
49/^Discarded input/ { discard = 1; }
50/^Memory map/ { discard = 0; }
51/.*\\.text\\..*($2|$3).*/ { act[discard] = act[discard] \" \" \$0; }
52END {
53      # printf \"kept\" act[0] \"\\nfolded\" act[1] \"\\n\";
54      if (length(act[0]) == 0 || length(act[1]) == 0)
55	{
56	  printf \"Safe Identical Code Folding did not fold $2 and $3\\n\"
57	  exit 1;
58	}
59    }" $1
60}
61
62arch_specific_safe_fold()
63{
64    if grep -q -e "Advanced Micro Devices X86-64" -e "Intel 80386" -e "ARM" -e "TILE" -e "PowerPC" -e "AArch64" -e "IBM S/390" $2;
65    then
66      check_fold $3 $4 $5
67    else
68      check_nofold $1 $4 $5
69    fi
70}
71
72arch_specific_safe_fold icf_safe_pie_test_1.stdout icf_safe_pie_test_2.stdout \
73  icf_safe_pie_test.map "kept_func_1" "kept_func_2"
74check_fold   icf_safe_pie_test.map "_ZN1AD2Ev" "_ZN1AC2Ev"
75check_nofold icf_safe_pie_test_1.stdout "kept_func_3" "kept_func_1"
76check_nofold icf_safe_pie_test_1.stdout "kept_func_3" "kept_func_2"
77