1# Expect script for common symbol override.
2#
3# Copyright (C) 2011-2016 Free Software Foundation, Inc.
4#
5# This file is part of the GNU Binutils.
6#
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 3 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, write to the Free Software
19# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20# MA 02110-1301, USA.
21#
22
23#
24# Written by Maciej W. Rozycki <macro@codesourcery.com>
25#
26
27# This test is for ELF shared-library targets.
28if { ![is_elf_format] || ![check_shared_lib_support] } {
29    return
30}
31
32# This target requires extra GAS options when building code for shared
33# libraries.
34set AFLAGS_PIC ""
35if [istarget "tic6x-*-*"] {
36    append AFLAGS_PIC " -mpic -mpid=near"
37}
38# This target requires a non-default emulation for successful shared
39# library/executable builds.
40set LFLAGS ""
41if [istarget "tic6x-*-*"] {
42    append LFLAGS " -melf32_tic6x_le"
43}
44
45set testname "Common symbol override test"
46
47# Define a global symbol.
48run_ld_link_tests [list \
49    [list \
50	"$testname (auxiliary shared object build)" \
51	"$LFLAGS -shared" "" \
52	"$AFLAGS_PIC" \
53	{ comm-data1.s } \
54	{ \
55	    { readelf -s comm-data1.sd } \
56	} \
57	"libcomm-data.so" \
58    ] \
59]
60
61# Set the pointer size according to the ELF flavor.
62set AFLAGS ""
63if [is_elf64 "tmpdir/libcomm-data.so"] {
64    append AFLAGS " --defsym ELF64=1"
65}
66# HPUX targets use a different .comm syntax.
67if [istarget "*-*-hpux*"] {
68    append AFLAGS " --defsym HPUX=1"
69}
70
71# bfin does not currently support copy relocs.
72setup_xfail "bfin-*-*"
73
74setup_xfail "arm*-*-*" "ld/13802"
75
76# List targets here that keep copy relocs rather than eliminating
77# them where possible in favour to dynamic relocs in the relevant
78# loadable sections; see also the "-z nocopyreloc" command-line
79# option and the ELIMINATE_COPY_RELOCS macro some backends use.
80set copy_reloc [expr [istarget mn10300-*-*] || [istarget vax-*-*]]
81
82# Verify that a common symbol has been converted to an undefined
83# reference to the global symbol of the same name defined above
84# and that the debug reference has been dropped.
85run_ld_link_tests [list \
86    [list \
87	"$testname" \
88	"$LFLAGS -T comm-data2.ld -Ltmpdir -lcomm-data" "" \
89	"$AFLAGS" \
90	{ comm-data2.s } \
91	[list \
92	    [list readelf -s \
93		[expr { $copy_reloc ? "comm-data2r.sd" : "comm-data2.sd"}]] \
94	    [list readelf -r \
95		[expr { $copy_reloc ? "comm-data2r.rd" : "comm-data2.rd"}]] \
96	    [list readelf "-x .debug_foo" \
97		[expr { $copy_reloc ? "comm-data2r.xd" : "comm-data2.xd"}]]] \
98	"comm-data" \
99    ] \
100    [list \
101	"$testname 3a" \
102	"-static" "" \
103	"" \
104	{ comm-data3a.s comm-data3b.s } \
105	{ \
106	    { readelf -s comm-data3.sd } \
107	} \
108	"comm-data3a" \
109    ] \
110    [list \
111	"$testname 3b" \
112	"-static" "" \
113	"" \
114	{ comm-data3b.s comm-data3a.s } \
115	{ \
116	    { readelf -s comm-data3.sd } \
117	} \
118	"comm-data3b" \
119    ] \
120]
121