Commit | Line | Data |
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f64b2e8d NC |
1 | # Expect script for linker support of STB_GNU_UNIQUE symbols |
2 | # | |
b3adc24a | 3 | # Copyright (C) 2009-2020 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 | ||
d9409498 L |
38 | set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]] |
39 | foreach t $test_list { | |
40 | # We need to strip the ".d", but can leave the dirname. | |
41 | verbose [file rootname $t] | |
42 | run_dump_test [file rootname $t] | |
43 | } | |
c3fbf828 | 44 | |
f64b2e8d NC |
45 | # We need a working compiler. (Strictly speaking this is |
46 | # not true, we could use target specific assembler files). | |
44ed8092 | 47 | if { ![check_compiler_available] } { |
c3fbf828 | 48 | verbose "UNIQUE compiled tests not run - no compiler available" |
f64b2e8d NC |
49 | return |
50 | } | |
51 | ||
52 | # A procedure to check the OS/ABI field in the ELF header of a binary file. | |
53 | proc check_osabi { binary_file expected_osabi } { | |
54 | global READELF | |
55 | global READELFFLAGS | |
56 | ||
57 | catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got | |
58 | ||
59 | if ![string match "" $got] then { | |
60 | verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got" | |
61 | return 0 | |
62 | } | |
63 | ||
64 | if { ![regexp "\n\[ \]*OS/ABI:\[ \]*(.+)\n\[ \]*ABI" \ | |
65 | [file_contents readelf.out] nil osabi] } { | |
66 | verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file" | |
67 | return 0 | |
68 | } | |
69 | ||
70 | if { $osabi == $expected_osabi } { | |
71 | return 1 | |
72 | } | |
73 | ||
74 | verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi" | |
75 | ||
76 | return 0 | |
77 | } | |
78 | ||
79 | # A procedure to confirm that a file contains the UNIQUE symbol. | |
80 | # Returns -1 upon error, 0 if the symbol was not found and 1 if it was found. | |
81 | proc contains_unique_symbol { binary_file } { | |
82 | global READELF | |
83 | global READELFFLAGS | |
84 | ||
85 | catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got | |
86 | ||
87 | if ![string match "" $got] then { | |
88 | verbose "proc contains_unique_symbol: Readelf produced unexpected out processing $binary_file: $got" | |
89 | return -1 | |
90 | } | |
91 | ||
92 | # Look for a line like this: | |
93 | # 54: 0000000000400474 4 OBJECT UNIQUE DEFAULT 13 a | |
94 | ||
95 | if { ![regexp ".*\[ \]*OBJECT\[ \]+UNIQUE\[ \]+DEFAULT\[ \]+\[UND0-9\]+\[ \]+\[ab\]\n" [file_contents readelf.out]] } { | |
96 | return 0 | |
97 | } | |
98 | ||
99 | return 1 | |
100 | } | |
101 | ||
102 | set fails 0 | |
103 | ||
104 | # Create object file containing unique symbol. | |
105 | if ![ld_compile "$CC -c" "$srcdir/$subdir/unique.s" "tmpdir/unique.o"] { | |
106 | fail "Could not create a unique object" | |
107 | set fails [expr $fails + 1] | |
108 | } | |
109 | ||
110 | # Create object file NOT containing unique symbol. | |
111 | if ![ld_compile "$CC -c" "$srcdir/$subdir/unique_empty.s" "tmpdir/unique_empty.o"] { | |
112 | fail "Could not create a non-unique object" | |
113 | set fails [expr $fails + 1] | |
114 | } | |
115 | ||
9966f7ee JW |
116 | # When using GCC as the linker driver, we need to specify board cflags when |
117 | # linking because cflags may contain linker options. For example when linker | |
118 | # options are included in GCC spec files then we need the -specs option. | |
119 | if [board_info [target_info name] exists cflags] { | |
120 | set board_cflags " [board_info [target_info name] cflags]" | |
121 | } else { | |
122 | set board_cflags "" | |
123 | } | |
124 | ||
f64b2e8d | 125 | # Create executable containing unique symbol. |
9966f7ee | 126 | if ![ld_link "$CC $board_cflags" "tmpdir/unique_prog" "tmpdir/unique.o"] { |
f64b2e8d NC |
127 | fail "Could not link a unique executable" |
128 | set fails [expr $fails + 1] | |
129 | } | |
130 | ||
f64b2e8d NC |
131 | if { $fails != 0 } { |
132 | return | |
133 | } | |
134 | ||
135 | # Check the object file. | |
9c55345c TS |
136 | if {! [check_osabi tmpdir/unique.o {UNIX - GNU}]} { |
137 | fail "Object containing unique does not have an OS/ABI field of GNU" | |
f64b2e8d NC |
138 | set fails [expr $fails + 1] |
139 | } | |
140 | ||
141 | if {[contains_unique_symbol tmpdir/unique.o] != 1} { | |
142 | fail "Object containing unique does not contain an UNIQUE symbol" | |
143 | set fails [expr $fails + 1] | |
144 | } | |
145 | ||
146 | if { $fails == 0 } { | |
147 | pass "Checking unique object" | |
148 | } | |
149 | ||
150 | # Check the executable. | |
9c55345c TS |
151 | if {! [check_osabi tmpdir/unique_prog {UNIX - GNU}]} { |
152 | fail "Executable containing unique does not have an OS/ABI field of GNU" | |
f64b2e8d NC |
153 | set fails [expr $fails + 1] |
154 | } | |
155 | ||
156 | if {[contains_unique_symbol tmpdir/unique_prog] != 1} { | |
157 | fail "Executable containing unique does not contain an UNIQUE symbol" | |
158 | set fails [expr $fails + 1] | |
159 | } | |
160 | ||
161 | if { $fails == 0 } { | |
162 | pass "Checking unique executable" | |
163 | } | |
164 | ||
165 | # Check the empty object file. | |
e3696f67 AM |
166 | switch -glob $target_triplet { |
167 | hppa*-*-linux* { set expected_none {UNIX - GNU} } | |
d9816402 AM |
168 | default { set expected_none {UNIX - System V} } |
169 | } | |
170 | if {! [check_osabi tmpdir/unique_empty.o $expected_none]} { | |
171 | fail "Object NOT containing unique does not have an OS/ABI field of $expected_none" | |
f64b2e8d NC |
172 | set fails [expr $fails + 1] |
173 | } | |
174 | ||
175 | if {[contains_unique_symbol tmpdir/unique_empty.o] == 1} { | |
176 | fail "Object NOT containing unique does contain an UNIQUE symbol" | |
177 | set fails [expr $fails + 1] | |
178 | } | |
179 | ||
180 | if { $fails == 0 } { | |
181 | pass "Checking empty unique object" | |
182 | } | |
183 | ||
319b82e4 DD |
184 | # ------------------------------------------------------------------------------ |
185 | # Only shared library tests below. | |
186 | # ------------------------------------------------------------------------------ | |
187 | ||
188 | if { ![check_shared_lib_support] } { | |
189 | return | |
190 | } | |
191 | ||
192 | # Create pic object file containing unique symbol. | |
193 | if {![ld_compile "$CC -c -fPIC" "$srcdir/$subdir/unique_shared.s" "tmpdir/unique_shared.o"] } { | |
194 | fail "Could not create a pic unique object" | |
195 | set fails [expr $fails + 1] | |
196 | } | |
197 | ||
198 | # Create shared library containing unique symbol. | |
199 | if {![ld_link $ld "tmpdir/libunique_shared.so" "-shared tmpdir/unique_shared.o"] } { | |
200 | fail "Could not create a shared library containing an unique symbol" | |
201 | set fails [expr $fails + 1] | |
202 | } | |
203 | ||
204 | # Create executable NOT containing unique symbol linked against library. | |
ce790370 | 205 | if {![ld_link "$CC $board_cflags" "tmpdir/unique_shared_prog" "-Ltmpdir tmpdir/unique_empty.o -Wl,-Bdynamic,-rpath=./tmpdir -lunique_shared"] } { |
319b82e4 DD |
206 | fail "Could not link a dynamic executable" |
207 | set fails [expr $fails + 1] | |
208 | } | |
209 | ||
210 | # Create shared library containing unique symbol with reference. | |
211 | if {![ld_link $ld "tmpdir/libunique_shared_ref.so" "-shared tmpdir/unique_shared.o tmpdir/unique_empty.o"] } { | |
212 | fail "Could not create a shared library containing an unique symbol with reference" | |
213 | set fails [expr $fails + 1] | |
214 | } | |
215 | ||
216 | if { $fails != 0 } { | |
217 | return | |
218 | } | |
219 | ||
f64b2e8d | 220 | # Check the unique PIC file. |
9c55345c TS |
221 | if {! [check_osabi tmpdir/unique_shared.o {UNIX - GNU}]} { |
222 | fail "PIC Object containing unique does not have an OS/ABI field of GNU" | |
f64b2e8d NC |
223 | set fails [expr $fails + 1] |
224 | } | |
225 | ||
226 | if {[contains_unique_symbol tmpdir/unique_shared.o] != 1} { | |
227 | fail "PIC Object containing unique does not contain an UNIQUE symbol" | |
228 | set fails [expr $fails + 1] | |
229 | } | |
230 | ||
231 | if { $fails == 0 } { | |
a0a8a934 | 232 | pass "Checking unique PIC object 1" |
f64b2e8d NC |
233 | } |
234 | ||
235 | # Check the unique shared library. | |
9c55345c TS |
236 | if {! [check_osabi tmpdir/libunique_shared.so {UNIX - GNU}]} { |
237 | fail "Shared library containing unique does not have an OS/ABI field of GNU" | |
f64b2e8d NC |
238 | set fails [expr $fails + 1] |
239 | } | |
240 | ||
241 | if {[contains_unique_symbol tmpdir/libunique_shared.so] != 1} { | |
242 | fail "Shared library containing unique does not contain an UNIQUE symbol" | |
243 | set fails [expr $fails + 1] | |
244 | } | |
245 | ||
35399224 L |
246 | # Check the unique shared library with reference. |
247 | if {! [check_osabi tmpdir/libunique_shared_ref.so {UNIX - GNU}]} { | |
248 | fail "Shared library containing unique with reference does not have an OS/ABI field of GNU" | |
249 | set fails [expr $fails + 1] | |
250 | } | |
251 | ||
252 | if {[contains_unique_symbol tmpdir/libunique_shared_ref.so] != 1} { | |
253 | fail "Shared library containing unique with reference does not contain an UNIQUE symbol" | |
254 | set fails [expr $fails + 1] | |
255 | } | |
256 | ||
f64b2e8d | 257 | if { $fails == 0 } { |
a0a8a934 | 258 | pass "Checking unique PIC object 2" |
f64b2e8d NC |
259 | } |
260 | ||
261 | # Check the empty executable linked against unique shared library. | |
d9816402 AM |
262 | if {! [check_osabi tmpdir/unique_shared_prog $expected_none]} { |
263 | fail "Executable NOT containing unique does not have an OS/ABI field of $expected_none" | |
f64b2e8d NC |
264 | set fails [expr $fails + 1] |
265 | } | |
266 | ||
267 | if {[contains_unique_symbol tmpdir/unique_shared_prog] == 1} { | |
268 | fail "Executable NOT containing unique does contain an UNIQUE symbol" | |
269 | set fails [expr $fails + 1] | |
270 | } | |
271 | ||
272 | if { $fails == 0 } { | |
273 | pass "Checking shared empty executable" | |
274 | } |