ELF: Hide symbols defined in discarded input sections
[external/binutils.git] / ld / testsuite / ld-plugin / lto.exp
1 # Expect script for ld-plugin LTO tests
2 #   Copyright (C) 2011-2018 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 # Check to see if the C and C++ compilers work
22 if { [which $CC] == 0 || [which $CXX] == 0 } {
23     return
24 }
25
26 # These tests require plugin and LTO.
27 if { ![check_plugin_api_available]
28      || ![check_lto_available] } {
29     return
30 }
31
32 global INT128_CFLAGS
33
34 global CFLAGS
35 global CXXFLAGS
36 set saved_CFLAGS "$CFLAGS"
37 set saved_CXXFLAGS "$CXXFLAGS"
38 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
39 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS
40
41 proc restore_notify { } {
42   global saved_CFLAGS
43   global saved_CXXFLAGS
44   set CFLAGS "$saved_CFLAGS"
45   set CXXFLAGS "$saved_CXXFLAGS"
46 }
47
48 set plugin_names {
49     liblto_plugin.so
50     liblto_plugin-0.dll
51     cyglto_plugin-0.dll
52 }
53 set plug_opt ""
54 foreach plug $plugin_names {
55     set plug_so [run_host_cmd $CC "--print-prog-name $plug"]
56     if { $plug_so eq $plug } then {
57         set plug_so [run_host_cmd $CC "--print-file-name $plug"]
58     }
59     if { $plug_so ne $plug } then {
60         set plug_opt "--plugin $plug_so"
61         break
62     }
63 }
64 set lto_fat ""
65 set lto_no_fat ""
66 if { [check_lto_fat_available] } {
67   set lto_fat "-ffat-lto-objects"
68   set lto_no_fat "-fno-fat-lto-objects"
69 }
70
71 # Simple LTO tests and generate input files for complex LTO tests.
72 set lto_link_tests [list \
73   [list "LTO 1" \
74    "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin" \
75    {lto-1a.c lto-1b.c} {} "lto-1.exe"] \
76   [list "Compile 2" \
77    "" "-O2 -flto -fuse-linker-plugin" \
78    {lto-2.c} {} ""] \
79   [list "LTO 2" \
80    "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" "" \
81    {dummy.c} {} "lto-2.exe"] \
82   [list "Compile 3a" \
83    "" "-flto" \
84    {lto-3a.c} {} ""] \
85   [list "Compile 3c" \
86    "" "-O2" \
87    {lto-3c.c} {} ""] \
88   [list "Build liblto-3.a" \
89    "" "-flto $lto_fat" \
90    {lto-3b.c} {} "liblto-3.a"] \
91   [list "Compile 5a" \
92    "" "-flto $lto_fat" \
93    {lto-5a.c} {} ""] \
94   [list "Compile 5b" \
95    "" "-flto $lto_fat" \
96    {lto-5b.c} {} ""] \
97   [list "LTO 6" \
98    "-O2 -flto -fuse-linker-plugin" "" \
99    {lto-6.c} {} "lto-6.exe" "c"] \
100   [list "Compile PR ld/12365" \
101    "" "-flto -O2 $lto_fat" \
102    {pr12365a.c pr12365b.c pr12365c.c} {} ""] \
103   [list "Compile 9" \
104    "" "-O2 -finline -flto" \
105    {lto-9.cc} {} "" "c++"] \
106   [list "Compile 11a" \
107    "" "-O -flto" \
108    {lto-11a.c} {} ""] \
109   [list "Compile 11b" \
110    "" "-O -flto" \
111    {lto-11b.c} {} ""] \
112   [list "Compile 11c" \
113    "" "-O" \
114    {lto-11c.c} {} ""] \
115   [list "Build liblto-12.a" \
116    "$plug_opt" "-O2 -flto" \
117    {lto-12c.c} {} "liblto-12.a"] \
118   [list "Compile 12" \
119    "" "-O2 -flto" \
120    {lto-12a.c lto-12b.c} {} ""] \
121   [list "Compile 13" \
122    "" "-O2 -flto" \
123    {lto-13a.c lto-13b.c} {} ""] \
124   [list "Build liblto-13.a" \
125    "" "-O2" \
126    {lto-13c.c} {} "liblto-13.a"] \
127   [list "Compile 14a" \
128    "" "-flto" \
129    {lto-14a.c lto-14b.c} {} ""] \
130   [list "Build liblto-14.a" \
131    "$plug_opt" "-flto" \
132    {lto-14c.c} {} "liblto-14.a"] \
133   [list "Compile 15a" \
134    "" "-flto" \
135    {lto-15a.c} {} ""] \
136   [list "Build liblto-15.a" \
137    "$plug_opt" "-flto" \
138    {lto-15b.c} {} "liblto-15.a"] \
139   [list "PR ld/12696" \
140    "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto" \
141    {pr12696-1.cc} {} "pr12696-1r.o" "c++"] \
142   [list "Compile PR ld/12758" \
143    "" "" \
144    {pr12758a.s} {} ""] \
145   [list "Build libpr12758.a" \
146    "" "-flto -O2 $lto_fat" \
147    {pr12758b.c} {} "libpr12758.a"] \
148   [list "PR ld/12758" \
149    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" "" \
150    {dummy.c} {} "pr12758.exe"] \
151   [list "Compile PR ld/12760" \
152    "" "-g -O0" \
153    {pr12760a.c} {} ""] \
154   [list "Build libpr12760.a" \
155    "" "-flto -O2 $lto_fat" \
156    {pr12760b.c} {} "libpr12760.a"] \
157   [list "PR ld/12760" \
158    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" "" \
159    {dummy.c} {{warning "pr12760a.c:6: warning: Bad \\.?bar"}} \
160    "pr12760.exe" "c"] \
161   [list "Build libpr13183.a" \
162    "-T" "-flto -O2 $lto_fat" \
163    {pr13183a.c} {} "libpr13183.a"] \
164   [list "Compile PR ld/13183" \
165    "" "-flto -O2" \
166    {pr13183b.c} {} ""] \
167   [list "Compile PR ld/13201" \
168    "" "-flto -O2" \
169    {pr13201.c} {} ""] \
170   [list "PR ld/13287" \
171    "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto" \
172    {pr13287.cc} {} "pr13287.exe" "c++"] \
173   [list "PR ld/15323 (1)" \
174    "" "-O2" \
175    {pr15323a.c} {} "" "c"] \
176   [list "PR ld/15323 (2)" \
177    "-O2 -flto -r -nostdlib" "-O2 -flto" \
178    {pr15323a.c} {} "pr15323a-r.o" "c"] \
179   [list "Compile(1) PR ld/pr16846" \
180    "" "-flto" \
181    {pr16846a.c pr16846b.c} {} ""] \
182   [list "Compile(2) PR ld/pr16846" \
183    "" "" \
184    {pr16846c.c} {} ""] \
185   [list "PR ld/pr16846(1)" \
186    "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846b.o tmpdir/pr16846c.o" "" \
187    {dummy.c} {} "pr16846a.exe"] \
188   [list "PR ld/pr16846(2)" \
189    "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846c.o tmpdir/pr16846b.o" "" \
190    {dummy.c} {} "pr16846b.exe"] \
191   [list "PR ld/19317 (1)" \
192    "$plug_opt" "-flto $lto_no_fat" \
193    {pr19317.c} {} "libpr19317.a"] \
194   [list "Build pr20276a.o" \
195    "" "-fno-lto" \
196    {pr20276a.c}] \
197   [list "Build pr20276b.o" \
198    "$plug_opt" "-flto $lto_no_fat" \
199    {pr20276b.c}] \
200   [list "Build pr20267a.o" \
201    "" "" \
202    {pr20267a.c}] \
203   [list "Build libpr20267a.a" \
204    "$plug_opt" "-flto $lto_fat" \
205    {pr20267b.c} {} "libpr20267a.a"] \
206   [list "Build libpr20267b.a" \
207    "$plug_opt" "-flto $lto_no_fat" \
208    {pr20267b.c} {} "libpr20267b.a"] \
209   [list "Build pr20321" \
210    "-flto -Wl,-plugin,$plug_so" "-flto" \
211    {pr20321.c} {{warning ".*: duplicated plugin"}} \
212    "pr20321" "c"] \
213   [list "Build pr22502a.o" \
214    "" "" \
215    {pr22502a.c}] \
216   [list "Build pr22502b.o" \
217    "$plug_opt" "-flto $lto_no_fat" \
218    {pr22502b.c}] \
219   [list "Build pr22751.a" \
220    "$plug_opt" "-flto $lto_no_fat $INT128_CFLAGS" \
221    {pr22751.c} {} "pr22751.a"] \
222   [list "Build libpr23818.so" \
223    "-shared -flto -g -Wl,-version-script,pr23818.t" \
224    "-g -flto $lto_fat" \
225    {pr23818a.c pr23818b.c} \
226    {{"readelf" {-s --wide} "pr23818.d"}} \
227    "libpr23818.so"] \
228 ]
229
230 if { [at_least_gcc_version 4 7] } {
231     set lto_link_tests [concat $lto_link_tests [list \
232       [list "Compile PR ld/12942 (1)" \
233        "" "-flto -O2" \
234        {pr12942a.cc pr12942c.cc} {} "" "c++"] \
235       [list "Compile PR ld/12942 (2)" \
236        "" "-O0" \
237        {pr12942b.cc} {} "" "c++"] \
238     ]]
239 }
240
241 set lto_compile_elf_tests [list \
242   [list "Compile 7" \
243    "" "-flto -O2" \
244    {lto-7a.c lto-7b.c lto-7c.c} {} ""] \
245   [list "Compile 8a" \
246    "" "-O2" \
247    {lto-8a.c} {} ""] \
248   [list "Compile 8b" \
249    "" "-flto -O2" \
250    {lto-8b.c} {} ""] \
251   [list "PR ld/23309" \
252    "-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections -Wl,--gc-sections,-u,KeepMe" \
253    "-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections" \
254    {pr23309.c} {{"nm" {} "pr23309.d"}} "pr23309.exe" "c"] \
255 ]
256
257 # Generate input files for complex LTO tests for ELF.
258 set lto_link_elf_tests [list \
259   [list "Build liblto-7.so" \
260    "-shared" "-O2 -fpic" \
261    {lto-7d.c} {} "liblto-7.so" "c"] \
262   [list "Build liblto-17a.so" \
263    "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto" \
264    {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"] \
265   [list "Build liblto-17b.so 1" \
266    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
267    {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"] \
268   [list "Build liblto-17b.so 2" \
269    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
270    {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"] \
271   [list "PR ld/12975" \
272    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto" \
273    {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"] \
274   [list "PR ld/13229" \
275    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto" \
276    {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"] \
277   [list "PR ld/13244" \
278    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto" \
279    {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"] \
280   [list "Build libpr15146a.a" \
281    "$plug_opt" "-flto -O2" \
282    {pr15146a.c} {} "lib15146a.a"] \
283   [list "Build pr15146b.so" \
284    "-shared" "-O2 -fpic" \
285    {pr15146b.c} {} "pr15146b.so" "c"] \
286   [list "Build pr15146c.so" \
287    "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic" \
288    {pr15146c.c} {} "pr15146c.so" "c"] \
289   [list "PR ld/15146 (1)" \
290    "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" "" \
291    {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"] \
292   [list "Build libpr15146d.a" \
293    "$plug_opt" "-flto -O2" \
294    {pr15146d.c} {} "lib15146d.a"] \
295   [list "Build libpr16746a.a" \
296    "" "" \
297    {pr16746a.c pr16746b.c} {} "lib15146a.a"] \
298   [list "Build libpr16746b.a" \
299    "$plug_opt" "-O2 -flto" \
300    {pr16746c.c pr16746d.c} {} "lib15146b.a"] \
301   [list "PR ld/16746 (1)" \
302    "-O2 -flto -fuse-linker-plugin tmpdir/pr16746a.o tmpdir/pr16746c.o" "-O2 -flto" \
303    {dummy.c} {} "pr16746a.exe"] \
304   [list "PR ld/16746 (2)" \
305    "-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
306    {dummy.c} {} "pr16746b.exe"] \
307   [list "Build pr21382a.o" \
308    "" "-O2 -flto" \
309    {pr21382a.c} {} "" "c"] \
310   [list "Build pr21382.so" \
311    "-shared" "-O2 -fpic" \
312    {pr21382b.c} {} "pr21382.so" "c"] \
313   [list {Build pr22220lib.so} \
314    {-shared -Wl,--version-script=pr22220lib.ver} {-fPIC} \
315    {pr22220lib.cc} {} {pr22220lib.so} {c++}] \
316   [list {Build pr22220main.o} \
317    {} {-flto} \
318    {pr22220main.cc} {} {} {c++}] \
319 ]
320
321 # PR 14918 checks that libgcc is not spuriously included in a shared link of
322 # an empty program.  The ARM crt1.o startup code however calls __libc_csu_init
323 # in /usr/lib/libc_nonshared.a(elf-init.oS).  This in turn needs
324 # __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1, so the
325 # test fails.  Hence this code to skip the test.
326 if { ! [istarget "arm*-*-*"] } {
327     set lto_link_elf_tests [concat $lto_link_elf_tests [list \
328   [list "PR ld/14918" \
329    "-flto" "-flto" \
330    {pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
331   ]]
332 }
333
334 # PR 12982 checks that an executable stack is not created by default
335 # when using the LTO plugin.  The HPPA target however requires an
336 # executable stack for syscall restarts and signal returns, so we
337 # skip this test for that target.
338 if { ! [istarget "hppa*-*-*"] } {
339     set lto_link_elf_tests [concat $lto_link_elf_tests [list \
340   [list "PR ld/12982" \
341    "-O2 -flto -fuse-linker-plugin" "-O2 -flto" \
342    {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"] \
343   ]]
344 }
345
346 # Check final symbols in executables.
347 set lto_link_symbol_tests [list \
348   [list "LTO 3 symbol" \
349    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
350    {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"] \
351   [list "LTO 5 symbol" \
352    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
353    {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"] \
354   [list "LTO 9 symbol" \
355    "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" "" \
356    {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"] \
357   [list "LTO 16a symbol" \
358    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto" \
359    {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"] \
360   [list "LTO 16b symbol" \
361    "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto" \
362    {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"] \
363   [list "PR ld/13183" \
364    "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" "" \
365    {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"] \
366 ]
367
368 # LTO run-time tests.
369 set lto_run_tests [list \
370   [list "LTO 3a" \
371    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
372    {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"] \
373   [list "LTO 3b" \
374    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" "" \
375    {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"] \
376   [list "LTO 3c" \
377    "-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" "" \
378    {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"] \
379   [list "LTO 5" \
380    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
381    {dummy.c} "lto-5.exe" "lto-5.out" "" "c"] \
382   [list "LTO 11" \
383    "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" "" \
384    {dummy.c} "lto-11.exe" "lto-11.out" "" "c"] \
385   [list "LTO 12a" \
386    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" "" \
387    {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"] \
388   [list "LTO 12b" \
389    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" "" \
390    {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"] \
391   [list "LTO 13" \
392    "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" "" \
393    {dummy.c} "lto-13.exe" "lto-13.out" "" "c"] \
394   [list "LTO 14" \
395    "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" "" \
396    {dummy.c} "lto-14.exe" "lto-14.out" "" "c"] \
397   [list "LTO 15" \
398    "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" "" \
399    {dummy.c} "lto-15.exe" "lto-15.out" "" "c"] \
400   [list "PR ld/13066" \
401    "-O2 -flto -fuse-linker-plugin" "" \
402    {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"] \
403   [list "PR ld/13201" \
404    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
405    {dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
406   [list "PR ld/15323 (3)" \
407    "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
408    {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
409   [list "PR ld/15323 (4)" \
410    "-O2 -flto tmpdir/pr15323a-r.o" "" \
411    {dummy.c} "pr15323a.exe" "pr15323.out" "-flto -O2" "c"] \
412   [list "PR ld/19317 (3)" \
413    "-O2 -flto tmpdir/pr19317-r.o" "" \
414    {dummy.c} "pr19317.exe" "pr19317.out" "-flto -O2" "c"] \
415   [list "Run pr20276" \
416    "-O2 -flto tmpdir/pr20276a.o tmpdir/pr20276b.o" "" \
417    {dummy.c} "pr20276" "pass.out" "-flto -O2" "c"] \
418   [list "Run pr20267a" \
419    "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267a.a" "" \
420    {dummy.c} "pr20267a" "pass.out" "-flto -O2" "c"] \
421   [list "Run pr20267b" \
422    "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267b.a" "" \
423    {dummy.c} "pr20267b" "pass.out" "-flto -O2" "c"] \
424   [list "Run pr22502" \
425    "-O2 -flto tmpdir/pr22502a.o tmpdir/pr22502b.o" "" \
426    {dummy.c} "pr20267" "pass.out" "-flto -O2" "c"] \
427   [list "Run pr22751" \
428    "-O2 -flto" "" \
429    {dummy.c} "pr22751" "pass.out" "-flto -O2" "c" "" \
430    "-Wl,--whole-archive tmpdir/pr22751.a -Wl,--no-whole-archive"] \
431 ]
432
433 if { [at_least_gcc_version 4 7] } {
434     set lto_run_tests [concat $lto_run_tests [list \
435       [list "PR ld/12942 (1)" \
436        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" "" \
437        {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"] \
438       [list "PR ld/12942 (2)" \
439        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" "" \
440        {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"] \
441     ]]
442 }
443
444 # LTO run-time tests for ELF which require shared library support.
445 set lto_run_elf_shared_tests [list \
446   [list "LTO 7" \
447    "-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" "" \
448    {dummy.c} "lto-7.exe" "lto-7.out" "" "c"] \
449   [list "Run pr21382" \
450    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr21382a.o tmpdir/pr21382.so" "" \
451    {dummy.c} "pr21382.exe" "pass.out" "" "c"] \
452   [list {pr22220a} \
453    {-flto -fuse-linker-plugin tmpdir/pr22220main.o tmpdir/pr22220lib.so} {} \
454    {dummy.c} {pr22220a.exe} {pass.out} {} {c++}] \
455   [list {pr22220b} \
456    {-flto -fuse-linker-plugin -Wl,--no-as-needed tmpdir/pr22220lib.so tmpdir/pr22220main.o} {} \
457    {dummy.c} {pr22220b.exe} {pass.out} {} {c++}] \
458 ]
459
460 # LTO run-time tests for ELF
461 set lto_run_elf_tests [list \
462   [list "LTO 8" \
463    "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" "" \
464    {dummy.c} "lto-8.exe" "lto-8.out" "" "c"] \
465   [list "LTO TLS IE" \
466    "-O2 -flto -fuse-linker-plugin" "" \
467    {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"] \
468 ]
469
470 run_cc_link_tests $lto_link_tests
471
472 # These compilation tests generate intermediate object files which will be used
473 # by some elf tests besides shared libs tests.  So, always compile them.
474 run_cc_link_tests $lto_compile_elf_tests
475
476 # Restrict these to ELF targets that support shared libs and PIC.
477 if { [is_elf_format] && [check_lto_shared_available] } {
478     run_cc_link_tests $lto_link_elf_tests
479     set testname "PR ld/15146 (2)"
480     set exec_output [run_host_cmd "$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"]
481     if { [ regexp "undefined reference to symbol '\\.?xxx'" $exec_output ] } {
482         pass $testname
483     } {
484         fail $testname
485     }
486     set testname "PR ld/16746 (3)"
487     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
488     if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
489         pass $testname
490     } {
491         fail $testname
492     }
493     set testname "PR ld/16746 (4)"
494     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
495     if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
496         pass $testname
497     } {
498         fail $testname
499     }
500 }
501
502 set testname "Build liblto-11.a"
503 remote_file host delete "tmpdir/liblto-11.a"
504 set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
505 if {![string match "" $catch_output]} {
506     unresolved $testname
507     restore_notify
508     return
509 }
510
511 if { [at_least_gcc_version 4 7] } {
512     # Check expected LTO linker errors.
513     # Since the asm symbol name hack in pr12365b.c doesn't work on all
514     # targets, run PR ld/12365 tests only for known targets.
515     if { ([istarget "i?86-*-elf*"]
516            || [istarget "i?86-*-linux*"]
517            || [istarget "i?86-*-gnu*"]
518            || [istarget "i?86-*-nacl*"]
519            || [istarget "x86_64-*-nacl*"]
520            || [istarget "x86_64-*-linux*"]
521            || [istarget "amd64-*-linux*"]) } {
522         set testname "PR ld/12365"
523         set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin -o tmpdir/pr12365 tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
524         set exec_output [prune_warnings $exec_output]
525         if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
526             # Linker should catch the reference to undefined `my_bcopy'
527             # error caused by a GCC bug.
528             pass $testname
529         } elseif { [ string match "" $exec_output ] } {
530             global READELF
531             set exec_output [run_host_cmd "$READELF" "-s -W tmpdir/pr12365"]
532             if { [ regexp "my_bcopy" $exec_output ] } {
533                 # Verify that there is no `my_bcopy' symbol in executable.
534                 fail $testname
535             } {
536                 pass $testname
537             }
538         } {
539             fail $testname
540         }
541
542         run_cc_link_tests [list \
543             [list \
544                 "Build pr22721a.so" \
545                 "-shared -nostdlib -nostartfiles -Wl,-version-script,pr22721.t" \
546                 "" \
547                 {pr22721a.s} \
548                 {} \
549                 "pr22721a.so" \
550             ] \
551             [list \
552                 "Build pr22721b.o" \
553                 "$plug_opt" \
554                 "-O2 -fPIC -flto $lto_no_fat" \
555                 {pr22721b.c} \
556             ] \
557             [list \
558                 "Build PR ld/pr22721" \
559                 "-O2 -flto -fuse-linker-plugin -nostdlib -nostartfiles \
560                 -Wl,-e,_start tmpdir/pr22721b.o tmpdir/pr22721a.so" \
561                 "" \
562                 {dummy.c} \
563                 {} \
564                 "pr22721.exe"
565             ] \
566         ]
567     }
568     set testname "PR ld/12942 (3)"
569     set exec_output [run_host_cmd "$CXX" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
570     if { [ regexp "undefined reference to `\\.?link_error\\(\\)'" $exec_output ] } {
571         pass $testname
572     } {
573         fail $testname
574     }
575
576     run_cc_link_tests [list \
577         [list \
578             "Build pr23460*.o" \
579             "$plug_opt" \
580             "-O2 -fPIC -flto $lto_no_fat" \
581             {pr23460a.c pr23460b.c pr23460c.c \
582              pr23460d.c pr23460e.c pr23460f.c} \
583         ] \
584     ]
585     set exec_output [run_host_cmd "sh" \
586                                   "-c \"ulimit -n 16; \
587                                    $ar -rc $plug_opt \
588                                    tmpdir/libpr23460.a \
589                                    tmpdir/pr23460a.o \
590                                    tmpdir/pr23460b.o \
591                                    tmpdir/pr23460c.o \
592                                    tmpdir/pr23460d.o \
593                                    tmpdir/pr23460e.o \
594                                    tmpdir/pr23460f.o\""]
595     set exec_output [prune_warnings $exec_output]
596     if [string match "" $exec_output] then {
597         pass "PR binutils/23460"
598     } else {
599         fail "PR binutils/23460"
600     }
601 }
602
603 # Run "ld -r" to generate inputs for complex LTO tests.
604 run_dump_test "lto-3r"
605 remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
606 run_dump_test "lto-5r"
607 remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
608
609 run_cc_link_tests $lto_link_symbol_tests
610
611 run_ld_link_tests [list \
612   [list "PR ld/19317 (2)" \
613    "-r tmpdir/pr19317.o" "" "" \
614    {dummy.s} {} "pr19317-r.o"] \
615 ]
616
617 run_ld_link_exec_tests $lto_run_tests
618
619 if { [is_elf_format] } {
620     run_ld_link_exec_tests $lto_run_elf_tests
621
622     # Note - it is not guaranteed that the ordering of symbols in the dynamic
623     # symbol table will match the ordering of the symbols specified by the
624     # --dynamic-list command line option.
625     #
626     # For PR22983 we want to make sure that all four symbols specified in
627     # pr222983.t are present in the output, but a simple sequences of regexps
628     # will not work as we do not know the order of the symbols.  (Readelf
629     # does not have a symbol sorting option and the run_cc_list_tests proc
630     # does not allow for the output of the dump program to piped into `sort`).
631     #
632     # So instead we run readelf four times, each time checking for the
633     # presence of a specific symbol from the pr22983.t file.
634     run_cc_link_tests [list \
635         [list \
636             "Build pr22983" \
637             "-Wl,--dynamic-list,pr22983.t" \
638             "-flto" \
639              {pr22983a.c pr22983b.c} \
640             {{readelf {--dyn-syms --wide} pr22983.1.d} \
641              {readelf {--dyn-syms --wide} pr22983.2.d} \
642              {readelf {--dyn-syms --wide} pr22983.3.d} \
643              {readelf {--dyn-syms --wide} pr22983.4.d}} \
644             "pr22983" \
645         ] \
646     ]
647 }
648
649 if { [is_elf_format] && [check_lto_shared_available] } {
650     run_ld_link_exec_tests $lto_run_elf_shared_tests
651 }
652
653 proc pr20103 {cflags libs} {
654     global CC
655
656     set testname "PR ld/20103 ($cflags $libs)"
657     set exec_output [run_host_cmd "$CC" "$cflags $libs"]
658     if { [ regexp "undefined reference to `\\.?dead'" $exec_output ] } {
659         pass "$testname (1)"
660     } {
661         fail "$testname (1)"
662     }
663     if { [ regexp "plugin needed to handle lto object" $exec_output ] } {
664         fail "$testname (2)"
665     } {
666         pass "$testname (2)"
667     }
668 }
669
670 if { [check_lto_fat_available] } {
671     run_cc_link_tests [list \
672         [list \
673             "Build fatpr20103a.a" \
674             "$plug_opt" "-flto -ffat-lto-objects" \
675             {pr20103a.c} {} "fatpr20103a.a"
676         ] \
677         [list \
678             "Build fatpr20103b.a" \
679             "$plug_opt" "-flto -ffat-lto-objects" \
680             {pr20103b.c} {} "fatpr20103b.a"
681         ] \
682         [list \
683             "Build fatpr20103c.a" \
684             "$plug_opt" "-flto -ffat-lto-objects" \
685             {pr20103c.c} {} "fatpr20103c.a" \
686         ] \
687         [list \
688             "Build thinpr20103a.a" \
689             "$plug_opt" "-flto -fno-fat-lto-objects" \
690             {pr20103a.c} {} "thinpr20103a.a"
691         ] \
692         [list \
693             "Build thinpr20103b.a" \
694             "$plug_opt" "-flto -fno-fat-lto-objects" \
695             {pr20103b.c} {} "thinpr20103b.a"
696         ] \
697         [list \
698             "Build thinpr20103c.a" \
699             "$plug_opt" "-flto -fno-fat-lto-objects" \
700             {pr20103c.c} {} "thinpr20103c.a" \
701         ] \
702         [list \
703             "Build pr20103a" \
704             "-O2 -flto -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
705             "-O2 -flto" \
706             {dummy.c} {} "pr20103a" \
707         ] \
708         [list \
709             "Build pr20103b" \
710             "-O2 -flto -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
711             "-O2 -flto" \
712             {dummy.c} {} "pr20103b" \
713         ] \
714         [list \
715             "Build pr20103c" \
716             "-O2 -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
717             "-O2" \
718             {dummy.c} {} "pr20103c" \
719         ] \
720     ]
721     pr20103 "-O2 -flto" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
722     pr20103 "-O2 -flto" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
723     pr20103 "-O2" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
724
725     if { [at_least_gcc_version 4 9] } {
726         run_cc_link_tests [list \
727             [list \
728                 "Build pr20103d" \
729                 "-O2 -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
730                 "-O2" \
731                 {dummy.c} {} "pr20103d" \
732             ] \
733         ]
734         pr20103 "-O2" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
735     }
736 }
737
738 restore_notify