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f64b2e8d NC |
1 | # Expect script for linker support of STB_GNU_UNIQUE symbols |
2 | # | |
2571583a | 3 | # Copyright (C) 2009-2017 Free Software Foundation, Inc. |
f64b2e8d NC |
4 | # Contributed by Red Hat. |
5 | # | |
6 | # This file is part of the GNU Binutils. | |
7 | # | |
8 | # This program is free software; you can redistribute it and/or modify | |
9 | # it under the terms of the GNU General Public License as published by | |
10 | # the Free Software Foundation; either version 3 of the License, or | |
11 | # (at your option) any later version. | |
12 | # | |
13 | # This program is distributed in the hope that it will be useful, | |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | # GNU General Public License for more details. | |
17 | # | |
18 | # You should have received a copy of the GNU General Public License | |
19 | # along with this program; if not, write to the Free Software | |
20 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | # MA 02110-1301, USA. | |
22 | # | |
23 | # Written by Nick Clifton <nickc@redhat.com> | |
24 | # Adapted for unique checking by Mark J. Wielaard <mjw@redhat.com> | |
25 | ||
26 | ||
a43942db MR |
27 | # Exclude non-ELF targets. |
28 | if { ![is_elf_format] } { | |
29 | return | |
30 | } | |
31 | ||
32 | # Require STB_GNU_UNIQUE support with OSABI set to GNU. | |
33 | if { ![supports_gnu_unique] } { | |
f64b2e8d NC |
34 | verbose "UNIQUE tests not run - target does not support UNIQUE" |
35 | return | |
36 | } | |
37 | ||
c3fbf828 MR |
38 | run_dump_test "unique" |
39 | ||
f64b2e8d NC |
40 | # We need a working compiler. (Strictly speaking this is |
41 | # not true, we could use target specific assembler files). | |
42 | if { [which $CC] == 0 } { | |
c3fbf828 | 43 | verbose "UNIQUE compiled tests not run - no compiler available" |
f64b2e8d NC |
44 | return |
45 | } | |
46 | ||
47 | # A procedure to check the OS/ABI field in the ELF header of a binary file. | |
48 | proc check_osabi { binary_file expected_osabi } { | |
49 | global READELF | |
50 | global READELFFLAGS | |
51 | ||
52 | catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got | |
53 | ||
54 | if ![string match "" $got] then { | |
55 | verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got" | |
56 | return 0 | |
57 | } | |
58 | ||
59 | if { ![regexp "\n\[ \]*OS/ABI:\[ \]*(.+)\n\[ \]*ABI" \ | |
60 | [file_contents readelf.out] nil osabi] } { | |
61 | verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file" | |
62 | return 0 | |
63 | } | |
64 | ||
65 | if { $osabi == $expected_osabi } { | |
66 | return 1 | |
67 | } | |
68 | ||
69 | verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi" | |
70 | ||
71 | return 0 | |
72 | } | |
73 | ||
74 | # A procedure to confirm that a file contains the UNIQUE symbol. | |
75 | # Returns -1 upon error, 0 if the symbol was not found and 1 if it was found. | |
76 | proc contains_unique_symbol { binary_file } { | |
77 | global READELF | |
78 | global READELFFLAGS | |
79 | ||
80 | catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got | |
81 | ||
82 | if ![string match "" $got] then { | |
83 | verbose "proc contains_unique_symbol: Readelf produced unexpected out processing $binary_file: $got" | |
84 | return -1 | |
85 | } | |
86 | ||
87 | # Look for a line like this: | |
88 | # 54: 0000000000400474 4 OBJECT UNIQUE DEFAULT 13 a | |
89 | ||
90 | if { ![regexp ".*\[ \]*OBJECT\[ \]+UNIQUE\[ \]+DEFAULT\[ \]+\[UND0-9\]+\[ \]+\[ab\]\n" [file_contents readelf.out]] } { | |
91 | return 0 | |
92 | } | |
93 | ||
94 | return 1 | |
95 | } | |
96 | ||
97 | set fails 0 | |
98 | ||
99 | # Create object file containing unique symbol. | |
100 | if ![ld_compile "$CC -c" "$srcdir/$subdir/unique.s" "tmpdir/unique.o"] { | |
101 | fail "Could not create a unique object" | |
102 | set fails [expr $fails + 1] | |
103 | } | |
104 | ||
105 | # Create object file NOT containing unique symbol. | |
106 | if ![ld_compile "$CC -c" "$srcdir/$subdir/unique_empty.s" "tmpdir/unique_empty.o"] { | |
107 | fail "Could not create a non-unique object" | |
108 | set fails [expr $fails + 1] | |
109 | } | |
110 | ||
111 | # Create pic object file containing unique symbol. | |
112 | if ![ld_compile "$CC -c -fPIC" "$srcdir/$subdir/unique_shared.s" "tmpdir/unique_shared.o"] { | |
113 | fail "Could not create a pic unique object" | |
114 | set fails [expr $fails + 1] | |
115 | } | |
116 | ||
117 | # Create executable containing unique symbol. | |
d9816402 | 118 | if ![ld_link $CC "tmpdir/unique_prog" "tmpdir/unique.o"] { |
f64b2e8d NC |
119 | fail "Could not link a unique executable" |
120 | set fails [expr $fails + 1] | |
121 | } | |
122 | ||
123 | # Create shared library containing unique symbol. | |
d9816402 | 124 | if ![ld_link $ld "tmpdir/libunique_shared.so" "-shared tmpdir/unique_shared.o"] { |
f64b2e8d NC |
125 | fail "Could not create a shared library containing an unique symbol" |
126 | set fails [expr $fails + 1] | |
127 | } | |
128 | ||
129 | # Create executable NOT containing unique symbol linked against library. | |
d9816402 | 130 | if ![ld_link $CC "tmpdir/unique_shared_prog" "-Ltmpdir tmpdir/unique_empty.o -Wl,-Bdynamic,-rpath=./tmpdir -lunique_shared"] { |
f64b2e8d NC |
131 | fail "Could not link a dynamic executable" |
132 | set fails [expr $fails + 1] | |
133 | } | |
134 | ||
35399224 | 135 | # Create shared library containing unique symbol with reference. |
d9816402 | 136 | if ![ld_link $ld "tmpdir/libunique_shared_ref.so" "-shared tmpdir/unique_shared.o tmpdir/unique_empty.o"] { |
35399224 L |
137 | fail "Could not create a shared library containing an unique symbol with reference" |
138 | set fails [expr $fails + 1] | |
139 | } | |
140 | ||
f64b2e8d NC |
141 | if { $fails != 0 } { |
142 | return | |
143 | } | |
144 | ||
145 | # Check the object file. | |
9c55345c TS |
146 | if {! [check_osabi tmpdir/unique.o {UNIX - GNU}]} { |
147 | fail "Object containing unique does not have an OS/ABI field of GNU" | |
f64b2e8d NC |
148 | set fails [expr $fails + 1] |
149 | } | |
150 | ||
151 | if {[contains_unique_symbol tmpdir/unique.o] != 1} { | |
152 | fail "Object containing unique does not contain an UNIQUE symbol" | |
153 | set fails [expr $fails + 1] | |
154 | } | |
155 | ||
156 | if { $fails == 0 } { | |
157 | pass "Checking unique object" | |
158 | } | |
159 | ||
160 | # Check the executable. | |
9c55345c TS |
161 | if {! [check_osabi tmpdir/unique_prog {UNIX - GNU}]} { |
162 | fail "Executable containing unique does not have an OS/ABI field of GNU" | |
f64b2e8d NC |
163 | set fails [expr $fails + 1] |
164 | } | |
165 | ||
166 | if {[contains_unique_symbol tmpdir/unique_prog] != 1} { | |
167 | fail "Executable containing unique does not contain an UNIQUE symbol" | |
168 | set fails [expr $fails + 1] | |
169 | } | |
170 | ||
171 | if { $fails == 0 } { | |
172 | pass "Checking unique executable" | |
173 | } | |
174 | ||
175 | # Check the empty object file. | |
d9816402 AM |
176 | case $target_triplet in { |
177 | { hppa*-*-linux* } { set expected_none {UNIX - GNU} } | |
178 | default { set expected_none {UNIX - System V} } | |
179 | } | |
180 | if {! [check_osabi tmpdir/unique_empty.o $expected_none]} { | |
181 | fail "Object NOT containing unique does not have an OS/ABI field of $expected_none" | |
f64b2e8d NC |
182 | set fails [expr $fails + 1] |
183 | } | |
184 | ||
185 | if {[contains_unique_symbol tmpdir/unique_empty.o] == 1} { | |
186 | fail "Object NOT containing unique does contain an UNIQUE symbol" | |
187 | set fails [expr $fails + 1] | |
188 | } | |
189 | ||
190 | if { $fails == 0 } { | |
191 | pass "Checking empty unique object" | |
192 | } | |
193 | ||
194 | # Check the unique PIC file. | |
9c55345c TS |
195 | if {! [check_osabi tmpdir/unique_shared.o {UNIX - GNU}]} { |
196 | fail "PIC Object containing unique does not have an OS/ABI field of GNU" | |
f64b2e8d NC |
197 | set fails [expr $fails + 1] |
198 | } | |
199 | ||
200 | if {[contains_unique_symbol tmpdir/unique_shared.o] != 1} { | |
201 | fail "PIC Object containing unique does not contain an UNIQUE symbol" | |
202 | set fails [expr $fails + 1] | |
203 | } | |
204 | ||
205 | if { $fails == 0 } { | |
206 | pass "Checking unique PIC object" | |
207 | } | |
208 | ||
209 | # Check the unique shared library. | |
9c55345c TS |
210 | if {! [check_osabi tmpdir/libunique_shared.so {UNIX - GNU}]} { |
211 | fail "Shared library containing unique does not have an OS/ABI field of GNU" | |
f64b2e8d NC |
212 | set fails [expr $fails + 1] |
213 | } | |
214 | ||
215 | if {[contains_unique_symbol tmpdir/libunique_shared.so] != 1} { | |
216 | fail "Shared library containing unique does not contain an UNIQUE symbol" | |
217 | set fails [expr $fails + 1] | |
218 | } | |
219 | ||
35399224 L |
220 | # Check the unique shared library with reference. |
221 | if {! [check_osabi tmpdir/libunique_shared_ref.so {UNIX - GNU}]} { | |
222 | fail "Shared library containing unique with reference does not have an OS/ABI field of GNU" | |
223 | set fails [expr $fails + 1] | |
224 | } | |
225 | ||
226 | if {[contains_unique_symbol tmpdir/libunique_shared_ref.so] != 1} { | |
227 | fail "Shared library containing unique with reference does not contain an UNIQUE symbol" | |
228 | set fails [expr $fails + 1] | |
229 | } | |
230 | ||
f64b2e8d NC |
231 | if { $fails == 0 } { |
232 | pass "Checking unique PIC object" | |
233 | } | |
234 | ||
235 | # Check the empty executable linked against unique shared library. | |
d9816402 AM |
236 | if {! [check_osabi tmpdir/unique_shared_prog $expected_none]} { |
237 | fail "Executable NOT containing unique does not have an OS/ABI field of $expected_none" | |
f64b2e8d NC |
238 | set fails [expr $fails + 1] |
239 | } | |
240 | ||
241 | if {[contains_unique_symbol tmpdir/unique_shared_prog] == 1} { | |
242 | fail "Executable NOT containing unique does contain an UNIQUE symbol" | |
243 | set fails [expr $fails + 1] | |
244 | } | |
245 | ||
246 | if { $fails == 0 } { | |
247 | pass "Checking shared empty executable" | |
248 | } |