1# Test handling of weak undefined symbols
2#   Copyright (C) 2001-2016 Free Software Foundation, Inc.
3#
4# This file is part of the GNU Binutils.
5#
6# This program is free software; you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation; either version 3 of the License, or
9# (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program; if not, write to the Free Software
18# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19# MA 02110-1301, USA.
20
21set testname "weak undefined symbols"
22
23# This test only works for ELF targets.  It ought to work for some
24# a.out targets, but it doesn't.
25
26if { ![istarget *-*-sysv4*] \
27     && ![istarget *-*-unixware*] \
28     && ![istarget *-*-elf*] \
29     && ![istarget *-*-eabi*] \
30     && ![istarget hppa*64*-*-hpux*] \
31     && ![istarget *-*-linux*] \
32     && ![istarget *-*-gnu*] \
33     && ![istarget *-*-nacl*] \
34     && ![istarget *-*-irix5*] \
35     && ![istarget *-*-irix6*] \
36     && ![is_pecoff_format] \
37     && ![istarget *-*-solaris2*] } then {
38    unsupported $testname
39    return
40}
41
42if { [istarget *-*-linux*aout*] \
43     || [istarget *-*-linux*oldld*] } {
44    unsupported $testname
45    return
46}
47
48# Weak symbols are broken for non-i386 PE targets.
49if {! [istarget i?86-*-*]} {
50    setup_xfail *-*-pe*
51}
52
53setup_xfail pj-*-*
54
55if {! [ld_assemble $as $srcdir/$subdir/weak-undef.s tmpdir/weak-undef.o]} then {
56    # It's OK if .weak doesn't work on this target.
57    unresolved $testname
58    return
59}
60
61# The linker should accept references to undefined weaks without error,
62# and resolve them to zero.
63
64set output_regexp \
65".*Contents of section .data:.*0000 00000000 11111111.*"
66
67if {! [ld_simple_link $ld tmpdir/weak-undef "$flags tmpdir/weak-undef.o -T $srcdir/$subdir/weak-undef.t"] } then {
68    fail $testname
69} else {
70    if {![is_remote host] && [which $objdump] == 0} then {
71	unresolved $testname
72	return
73    }
74
75    set exec_output [run_host_cmd "$objdump" "-s tmpdir/weak-undef"]
76    set exec_output [prune_warnings $exec_output]
77    verbose -log $exec_output
78
79    if {[regexp $output_regexp $exec_output]} then {
80	pass $testname
81    } else {
82	fail $testname
83    }
84}
85