1#!/bin/sh
2
3# icf_safe_so_test.sh -- test --icf=safe
4
5# Copyright (C) 2010-2014 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
30error_if_symbol_absent()
31{
32    if ! is_symbol_present $1 $2;
33    then
34      echo "Symbol" $2 "not present, possibly folded."
35      exit 1
36    fi
37}
38
39is_symbol_present()
40{
41    grep $2 $1 > /dev/null 2>&1
42    return $?
43}
44
45check_nofold()
46{
47    error_if_symbol_absent $1 $2
48    error_if_symbol_absent $1 $3
49    func_addr_1=`grep $2 $1 | awk '{print $1}'`
50    func_addr_2=`grep $3 $1 | awk '{print $1}'`
51    if [ $func_addr_1 = $func_addr_2 ];
52    then
53        echo "Safe Identical Code Folding folded" $2 "and" $3
54	exit 1
55    fi
56}
57
58check_fold()
59{
60    if ! is_symbol_present $1 $2
61    then
62      return 0
63    fi
64
65    if ! is_symbol_present $1 $3
66    then
67      return 0
68    fi
69
70    awk "
71BEGIN { discard = 0; }
72/^Discarded input/ { discard = 1; }
73/^Memory map/ { discard = 0; }
74/.*\\.text\\..*($2|$3).*/ { act[discard] = act[discard] \" \" \$0; }
75END {
76      # printf \"kept\" act[0] \"\\nfolded\" act[1] \"\\n\";
77      if (length(act[0]) == 0 || length(act[1]) == 0)
78	{
79	  printf \"Safe Identical Code Folding did not fold $2 and $3\\n\"
80	  exit 1;
81	}
82    }" $4
83}
84
85arch_specific_safe_fold()
86{
87    grep -e "Intel 80386" -e "ARM" -e "PowerPC" $1 > /dev/null 2>&1
88    if [ $? -eq 0 ];
89    then
90      check_fold $2 $4 $5 $3
91    else
92      check_nofold $2 $4 $5
93    fi
94}
95
96arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_prot" "foo_hidden"
97arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_prot" "foo_internal"
98arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_prot" "foo_static"
99arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_hidden" "foo_internal"
100arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_hidden" "foo_static"
101arch_specific_safe_fold icf_safe_so_test_2.stdout icf_safe_so_test_1.stdout icf_safe_so_test.map "foo_internal" "foo_static"
102check_nofold icf_safe_so_test_1.stdout "foo_glob" "bar_glob"
103