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Properly mark the plugin symbol undefined
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1 # Expect script for ld-plugin LTO tests
2 # Copyright (C) 2011-2015 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
21 # These tests require plugin and LTO.
22 if { ![check_plugin_api_available]
23 || ![check_lto_available] } {
24 return
25 }
26
27 global CFLAGS
28 global CXXFLAGS
29 set saved_CFLAGS "$CFLAGS"
30 set saved_CXXFLAGS "$CXXFLAGS"
31 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
32 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS
33
34 proc restore_notify { } {
35 global saved_CFLAGS
36 global saved_CXXFLAGS
37 set CFLAGS "$saved_CFLAGS"
38 set CXXFLAGS "$saved_CXXFLAGS"
39 }
40
41 set plugin_names {
42 liblto_plugin.so
43 liblto_plugin-0.dll
44 cyglto_plugin-0.dll
45 }
46 set plug_opt ""
47 foreach plug $plugin_names {
48 set plug_so [run_host_cmd $CC "--print-prog-name $plug"]
49 if { $plug_so eq $plug } then {
50 set plug_so [run_host_cmd $CC "--print-file-name $plug"]
51 }
52 if { $plug_so ne $plug } then {
53 set plug_opt "--plugin $plug_so"
54 break
55 }
56 }
57 set lto_fat ""
58 if { [check_lto_fat_available] } {
59 set lto_fat "-ffat-lto-objects"
60 }
61
62 # Simple LTO tests and generate input files for complex LTO tests.
63 set lto_link_tests [list \
64 [list "LTO 1" \
65 "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin" \
66 {lto-1a.c lto-1b.c} {} "lto-1.exe"] \
67 [list "Compile 2" \
68 "" "-O2 -flto -fuse-linker-plugin" \
69 {lto-2.c} {} ""] \
70 [list "LTO 2" \
71 "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" "" \
72 {dummy.c} {} "lto-2.exe"] \
73 [list "Compile 3a" \
74 "" "-flto" \
75 {lto-3a.c} {} ""] \
76 [list "Compile 3c" \
77 "" "-O2" \
78 {lto-3c.c} {} ""] \
79 [list "Build liblto-3.a" \
80 "" "-flto $lto_fat" \
81 {lto-3b.c} {} "liblto-3.a"] \
82 [list "Compile 5a" \
83 "" "-flto $lto_fat" \
84 {lto-5a.c} {} ""] \
85 [list "Compile 5b" \
86 "" "-flto $lto_fat" \
87 {lto-5b.c} {} ""] \
88 [list "LTO 6" \
89 "-O2 -flto -fuse-linker-plugin" "" \
90 {lto-6.c} {} "lto-6.exe" "c"] \
91 [list "Compile PR ld/12365" \
92 "" "-flto -O2 $lto_fat" \
93 {pr12365a.c pr12365b.c pr12365c.c} {} ""] \
94 [list "Compile 9" \
95 "" "-O2 -finline -flto" \
96 {lto-9.cc} {} "" "c++"] \
97 [list "Compile 11a" \
98 "" "-O -flto" \
99 {lto-11a.c} {} ""] \
100 [list "Compile 11b" \
101 "" "-O -flto" \
102 {lto-11b.c} {} ""] \
103 [list "Compile 11c" \
104 "" "-O" \
105 {lto-11c.c} {} ""] \
106 [list "Build liblto-12.a" \
107 "$plug_opt" "-O2 -flto" \
108 {lto-12c.c} {} "liblto-12.a"] \
109 [list "Compile 12" \
110 "" "-O2 -flto" \
111 {lto-12a.c lto-12b.c} {} ""] \
112 [list "Compile 13" \
113 "" "-O2 -flto" \
114 {lto-13a.c lto-13b.c} {} ""] \
115 [list "Build liblto-13.a" \
116 "" "-O2" \
117 {lto-13c.c} {} "liblto-13.a"] \
118 [list "Compile 14a" \
119 "" "-flto" \
120 {lto-14a.c lto-14b.c} {} ""] \
121 [list "Build liblto-14.a" \
122 "$plug_opt" "-flto" \
123 {lto-14c.c} {} "liblto-14.a"] \
124 [list "Compile 15a" \
125 "" "-flto" \
126 {lto-15a.c} {} ""] \
127 [list "Build liblto-15.a" \
128 "$plug_opt" "-flto" \
129 {lto-15b.c} {} "liblto-15.a"] \
130 [list "PR ld/12696" \
131 "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto" \
132 {pr12696-1.cc} {} "pr12696-1r.o" "c++"] \
133 [list "Compile PR ld/12758" \
134 "" "" \
135 {pr12758a.s} {} ""] \
136 [list "Build libpr12758.a" \
137 "" "-flto -O2 $lto_fat" \
138 {pr12758b.c} {} "libpr12758.a"] \
139 [list "PR ld/12758" \
140 "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" "" \
141 {dummy.c} {} "pr12758.exe"] \
142 [list "Compile PR ld/12760" \
143 "" "-g -O0" \
144 {pr12760a.c} {} ""] \
145 [list "Build libpr12760.a" \
146 "" "-flto -O2 $lto_fat" \
147 {pr12760b.c} {} "libpr12760.a"] \
148 [list "PR ld/12760" \
149 "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" "" \
150 {dummy.c} {} "pr12760.exe" "c" "pr12760a.c:6: warning: Bad bar"] \
151 [list "Build libpr13183.a" \
152 "-T" "-flto -O2 $lto_fat" \
153 {pr13183a.c} {} "libpr13183.a"] \
154 [list "Compile PR ld/13183" \
155 "" "-flto -O2" \
156 {pr13183b.c} {} ""] \
157 [list "Compile PR ld/13201" \
158 "" "-flto -O2" \
159 {pr13201.c} {} ""] \
160 [list "PR ld/13287" \
161 "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto" \
162 {pr13287.cc} {} "pr13287.exe" "c++"] \
163 [list "PR ld/15323" \
164 "" "-O2" \
165 {pr15323a.c} {} "" "c"] \
166 [list "Compile(1) PR ld/pr16846" \
167 "" "-flto" \
168 {pr16846a.c pr16846b.c} {} ""] \
169 [list "Compile(2) PR ld/pr16846" \
170 "" "" \
171 {pr16846c.c} {} ""] \
172 [list "PR ld/pr16846(1)" \
173 "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846b.o tmpdir/pr16846c.o" "" \
174 {dummy.c} {} "pr16846a.exe"] \
175 [list "PR ld/pr16846(2)" \
176 "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846c.o tmpdir/pr16846b.o" "" \
177 {dummy.c} {} "pr16846b.exe"] \
178 ]
179
180 if { [at_least_gcc_version 4 7] } {
181 set lto_link_tests [concat $lto_link_tests [list \
182 [list "Compile PR ld/12942 (1)" \
183 "" "-flto -O2" \
184 {pr12942a.cc pr12942c.cc} {} "" "c++"] \
185 [list "Compile PR ld/12942 (2)" \
186 "" "-O0" \
187 {pr12942b.cc} {} "" "c++"] \
188 ]]
189 }
190
191 # Generate input files for complex LTO tests for ELF.
192 set lto_link_elf_tests [list \
193 [list "Compile 7" \
194 "" "-flto -O2" \
195 {lto-7a.c lto-7b.c lto-7c.c} {} ""] \
196 [list "Build liblto-7.so" \
197 "-shared" "-O2 -fpic" \
198 {lto-7d.c} {} "liblto-7.so" "c"] \
199 [list "Compile 8a" \
200 "" "-O2" \
201 {lto-8a.c} {} ""] \
202 [list "Compile 8b" \
203 "" "-flto -O2" \
204 {lto-8b.c} {} ""] \
205 [list "Build liblto-17a.so" \
206 "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto" \
207 {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"] \
208 [list "Build liblto-17b.so 1" \
209 "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
210 {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"] \
211 [list "Build liblto-17b.so 2" \
212 "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
213 {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"] \
214 [list "PR ld/12982" \
215 "-O2 -flto -fuse-linker-plugin" "-O2 -flto" \
216 {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"] \
217 [list "PR ld/12975" \
218 "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto" \
219 {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"] \
220 [list "PR ld/13229" \
221 "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto" \
222 {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"] \
223 [list "PR ld/13244" \
224 "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto" \
225 {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"] \
226 [list "Build libpr15146a.a" \
227 "$plug_opt" "-flto -O2" \
228 {pr15146a.c} {} "lib15146a.a"] \
229 [list "Build pr15146b.so" \
230 "-shared" "-O2 -fpic" \
231 {pr15146b.c} {} "pr15146b.so" "c"] \
232 [list "Build pr15146c.so" \
233 "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic" \
234 {pr15146c.c} {} "pr15146c.so" "c"] \
235 [list "PR ld/15146 (1)" \
236 "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" "" \
237 {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"] \
238 [list "Build libpr15146d.a" \
239 "$plug_opt" "-flto -O2" \
240 {pr15146d.c} {} "lib15146d.a"] \
241 [list "Build libpr16746a.a" \
242 "" "" \
243 {pr16746a.c pr16746b.c} {} "lib15146a.a"] \
244 [list "Build libpr16746b.a" \
245 "$plug_opt" "-O2 -flto" \
246 {pr16746c.c pr16746d.c} {} "lib15146b.a"] \
247 [list "PR ld/16746 (1)" \
248 "-O2 -flto -fuse-linker-plugin tmpdir/pr16746a.o tmpdir/pr16746c.o" "-O2 -flto" \
249 {dummy.c} {} "pr16746a.exe"] \
250 [list "PR ld/16746 (2)" \
251 "-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
252 {dummy.c} {} "pr16746b.exe"] \
253 [list "PR ld/14918" \
254 "-flto" "-flto" \
255 {pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
256 ]
257
258 # Check final symbols in executables.
259 set lto_link_symbol_tests [list \
260 [list "LTO 3 symbol" \
261 "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
262 {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"] \
263 [list "LTO 5 symbol" \
264 "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
265 {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"] \
266 [list "LTO 9 symbol" \
267 "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" "" \
268 {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"] \
269 [list "LTO 16a symbol" \
270 "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto" \
271 {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"] \
272 [list "LTO 16b symbol" \
273 "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto" \
274 {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"] \
275 [list "PR ld/13183" \
276 "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" "" \
277 {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"] \
278 ]
279
280 # LTO run-time tests.
281 set lto_run_tests [list \
282 [list "LTO 3a" \
283 "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
284 {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"] \
285 [list "LTO 3b" \
286 "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" "" \
287 {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"] \
288 [list "LTO 3c" \
289 "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o -Wl,--whole-archive tmpdir/liblto-3.a -Wl,--no-whole-archive tmpdir/liblto-3.a" "" \
290 {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"] \
291 [list "LTO 5" \
292 "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
293 {dummy.c} "lto-5.exe" "lto-5.out" "" "c"] \
294 [list "LTO 11" \
295 "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" "" \
296 {dummy.c} "lto-11.exe" "lto-11.out" "" "c"] \
297 [list "LTO 12a" \
298 "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" "" \
299 {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"] \
300 [list "LTO 12b" \
301 "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" "" \
302 {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"] \
303 [list "LTO 13" \
304 "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" "" \
305 {dummy.c} "lto-13.exe" "lto-13.out" "" "c"] \
306 [list "LTO 14" \
307 "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" "" \
308 {dummy.c} "lto-14.exe" "lto-14.out" "" "c"] \
309 [list "LTO 15" \
310 "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" "" \
311 {dummy.c} "lto-15.exe" "lto-15.out" "" "c"] \
312 [list "PR ld/13066" \
313 "-O2 -flto -fuse-linker-plugin" "" \
314 {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"] \
315 [list "PR ld/13201" \
316 "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
317 {dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
318 [list "PR ld/15323" \
319 "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
320 {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
321 ]
322
323 if { [at_least_gcc_version 4 7] } {
324 set lto_run_tests [concat $lto_run_tests [list \
325 [list "PR ld/12942 (1)" \
326 "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" "" \
327 {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"] \
328 [list "PR ld/12942 (2)" \
329 "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" "" \
330 {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"] \
331 ]]
332 }
333
334 # LTO run-time tests for ELF
335 set lto_run_elf_tests [list \
336 [list "LTO 7" \
337 "-O2 -flto -fuse-linker-plugin tmpdir/lto-7b.o tmpdir/lto-7c.o tmpdir/lto-7a.o -Wl,--no-as-needed tmpdir/liblto-7.so" "" \
338 {dummy.c} "lto-7.exe" "lto-7.out" "" "c"] \
339 [list "LTO 8" \
340 "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" "" \
341 {dummy.c} "lto-8.exe" "lto-8.out" "" "c"] \
342 [list "LTO TLS IE" \
343 "-O2 -flto -fuse-linker-plugin" "" \
344 {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"] \
345 ]
346
347 run_cc_link_tests $lto_link_tests
348
349 # Restrict these to ELF targets that support shared libs and PIC.
350 if { [is_elf_format] && [check_lto_shared_available] } {
351 run_cc_link_tests $lto_link_elf_tests
352 set testname "PR ld/15146 (2)"
353 set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146d.o tmpdir/pr15146c.so"]
354 if { [ regexp "undefined reference to symbol 'xxx'" $exec_output ] } {
355 pass $testname
356 } {
357 fail $testname
358 }
359 set testname "PR ld/16746 (3)"
360 set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
361 if { [ regexp "warning: foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
362 pass $testname
363 } {
364 fail $testname
365 }
366 set testname "PR ld/16746 (4)"
367 set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
368 if { [ regexp "warning: foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
369 pass $testname
370 } {
371 fail $testname
372 }
373 }
374
375 set testname "Build liblto-11.a"
376 remote_file host delete "tmpdir/liblto-11.a"
377 set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
378 if {![string match "" $catch_output]} {
379 unresolved $testname
380 restore_notify
381 return
382 }
383
384 if { [at_least_gcc_version 4 7] } {
385 # Check expected LTO linker errors.
386 # Since the asm symbol name hack in pr12365b.c doesn't work on all
387 # targets, run PR ld/12365 tests only for known targets.
388 if { ([istarget "i?86-*-elf*"]
389 || (([istarget "i?86-*-linux*"] || [istarget "i?86-*-gnu*"])
390 && ![istarget "*-*-*aout*"]
391 && ![istarget "*-*-*oldld*"])
392 || [istarget "i?86-*-nacl*"]
393 || [istarget "x86_64-*-nacl*"]
394 || [istarget "x86_64-*-linux*"]
395 || [istarget "amd64-*-linux*"]) } {
396 set testname "PR ld/12365"
397 set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
398 if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
399 pass $testname
400 } {
401 fail $testname
402 }
403 }
404 set testname "PR ld/12942 (3)"
405 set exec_output [run_host_cmd "$CXX" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
406 if { [ regexp "undefined reference to `link_error\\(\\)'" $exec_output ] } {
407 pass $testname
408 } {
409 fail $testname
410 }
411 }
412
413 # Run "ld -r" to generate inputs for complex LTO tests.
414 run_dump_test "lto-3r"
415 remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
416 run_dump_test "lto-5r"
417 remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
418
419 run_cc_link_tests $lto_link_symbol_tests
420
421 # The following tests require running the executable generated by ld.
422 if ![isnative] {
423 return
424 }
425
426 run_ld_link_exec_tests [] $lto_run_tests
427
428 if { [is_elf_format] } {
429 run_ld_link_exec_tests [] $lto_run_elf_tests
430 }
431
432 restore_notify