1#!/bin/sh
2
3# icf_safe_so_test.sh -- test --icf=safe
4
5# Copyright (C) 2010-2016 Free Software Foundation, Inc.
6# Written by Sriraman Tallam <tmsriram@google.com>.
7
8# This file is part of gold.
9
10# This program is free software; you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation; either version 3 of the License, or
13# (at your option) any later version.
14
15# This program is distributed in the hope that it will be useful,
16# but WITHOUT ANY WARRANTY; without even the implied warranty of
17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18# GNU General Public License for more details.
19
20# You should have received a copy of the GNU General Public License
21# along with this program; if not, write to the Free Software
22# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
23# MA 02110-1301, USA.
24
25# The goal of this program is to verify if --icf=safe  works as expected.
26# File icf_safe_so_test.cc is in this test.  The goal of this script is
27# to verify if identical code folding in safe mode correctly folds
28# functions in a shared object.
29
30set -e
31
32error_if_symbol_absent()
33{
34    if ! is_symbol_present $1 $2;
35    then
36      echo "Symbol" $2 "not present, possibly folded."
37      exit 1
38    fi
39}
40
41is_symbol_present()
42{
43    grep $2 $1 > /dev/null 2>&1
44    return $?
45}
46
47check_nofold()
48{
49    error_if_symbol_absent $1 $2
50    error_if_symbol_absent $1 $3
51    func_addr_1=`grep $2 $1 | awk '{print $1}'`
52    func_addr_2=`grep $3 $1 | awk '{print $1}'`
53    if [ $func_addr_1 = $func_addr_2 ];
54    then
55        echo "Safe Identical Code Folding folded" $2 "and" $3
56	exit 1
57    fi
58}
59
60check_fold()
61{
62    if ! is_symbol_present $1 $2
63    then
64      return 0
65    fi
66
67    if ! is_symbol_present $1 $3
68    then
69      return 0
70    fi
71
72    awk "
73BEGIN { discard = 0; }
74/^Discarded input/ { discard = 1; }
75/^Memory map/ { discard = 0; }
76/.*\\.text\\..*($2|$3).*/ { act[discard] = act[discard] \" \" \$0; }
77END {
78      # printf \"kept\" act[0] \"\\nfolded\" act[1] \"\\n\";
79      if (length(act[0]) == 0 || length(act[1]) == 0)
80	{
81	  printf \"Safe Identical Code Folding did not fold $2 and $3\\n\"
82	  exit 1;
83	}
84    }" $4
85}
86
87arch_specific_safe_fold()
88{
89    if grep -q -e "Intel 80386" -e "ARM" -e "PowerPC" $1;
90    then
91      check_fold $2 $4 $5 $3
92    else
93      check_nofold $2 $4 $5
94    fi
95}
96
97arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_prot" "foo_hidden"
98arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_prot" "foo_internal"
99arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_prot" "foo_static"
100arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_hidden" "foo_internal"
101arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_hidden" "foo_static"
102arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_internal" "foo_static"
103check_nofold icf_safe_so_test_1.stdout "foo_glob" "bar_glob"
104