ld/testsuite/ld-plugin/lto.exp

   1 # Expect script for ld-plugin LTO tests
   2 #   Copyright (C) 2011-2017 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 $CXX] == 0 } {
  23     return
  24 }
  25
  26 # These tests require plugin and LTO.
  27 if { ![check_plugin_api_available]
  28      || ![check_lto_available] } {
  29     return
  30 }
  31
  32 global CFLAGS
  33 global CXXFLAGS
  34 set saved_CFLAGS "$CFLAGS"
  35 set saved_CXXFLAGS "$CXXFLAGS"
  36 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
  37 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS
  38
  39 proc restore_notify { } {
  40   global saved_CFLAGS
  41   global saved_CXXFLAGS
  42   set CFLAGS "$saved_CFLAGS"
  43   set CXXFLAGS "$saved_CXXFLAGS"
  44 }
  45
  46 set plugin_names {
  47     liblto_plugin.so
  48     liblto_plugin-0.dll
  49     cyglto_plugin-0.dll
  50 }
  51 set plug_opt ""
  52 foreach plug $plugin_names {
  53     set plug_so [run_host_cmd $CC "--print-prog-name $plug"]
  54     if { $plug_so eq $plug } then {
  55         set plug_so [run_host_cmd $CC "--print-file-name $plug"]
  56     }
  57     if { $plug_so ne $plug } then {
  58         set plug_opt "--plugin $plug_so"
  59         break
  60     }
  61 }
  62 set lto_fat ""
  63 set lto_no_fat ""
  64 if { [check_lto_fat_available] } {
  65   set lto_fat "-ffat-lto-objects"
  66   set lto_no_fat "-fno-fat-lto-objects"
  67 }
  68
  69 # Simple LTO tests and generate input files for complex LTO tests.
  70 set lto_link_tests [list \
  71   [list "LTO 1" \
  72    "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin" \
  73    {lto-1a.c lto-1b.c} {} "lto-1.exe"] \
  74   [list "Compile 2" \
  75    "" "-O2 -flto -fuse-linker-plugin" \
  76    {lto-2.c} {} ""] \
  77   [list "LTO 2" \
  78    "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" "" \
  79    {dummy.c} {} "lto-2.exe"] \
  80   [list "Compile 3a" \
  81    "" "-flto" \
  82    {lto-3a.c} {} ""] \
  83   [list "Compile 3c" \
  84    "" "-O2" \
  85    {lto-3c.c} {} ""] \
  86   [list "Build liblto-3.a" \
  87    "" "-flto $lto_fat" \
  88    {lto-3b.c} {} "liblto-3.a"] \
  89   [list "Compile 5a" \
  90    "" "-flto $lto_fat" \
  91    {lto-5a.c} {} ""] \
  92   [list "Compile 5b" \
  93    "" "-flto $lto_fat" \
  94    {lto-5b.c} {} ""] \
  95   [list "LTO 6" \
  96    "-O2 -flto -fuse-linker-plugin" "" \
  97    {lto-6.c} {} "lto-6.exe" "c"] \
  98   [list "Compile PR ld/12365" \
  99    "" "-flto -O2 $lto_fat" \
 100    {pr12365a.c pr12365b.c pr12365c.c} {} ""] \
 101   [list "Compile 9" \
 102    "" "-O2 -finline -flto" \
 103    {lto-9.cc} {} "" "c++"] \
 104   [list "Compile 11a" \
 105    "" "-O -flto" \
 106    {lto-11a.c} {} ""] \
 107   [list "Compile 11b" \
 108    "" "-O -flto" \
 109    {lto-11b.c} {} ""] \
 110   [list "Compile 11c" \
 111    "" "-O" \
 112    {lto-11c.c} {} ""] \
 113   [list "Build liblto-12.a" \
 114    "$plug_opt" "-O2 -flto" \
 115    {lto-12c.c} {} "liblto-12.a"] \
 116   [list "Compile 12" \
 117    "" "-O2 -flto" \
 118    {lto-12a.c lto-12b.c} {} ""] \
 119   [list "Compile 13" \
 120    "" "-O2 -flto" \
 121    {lto-13a.c lto-13b.c} {} ""] \
 122   [list "Build liblto-13.a" \
 123    "" "-O2" \
 124    {lto-13c.c} {} "liblto-13.a"] \
 125   [list "Compile 14a" \
 126    "" "-flto" \
 127    {lto-14a.c lto-14b.c} {} ""] \
 128   [list "Build liblto-14.a" \
 129    "$plug_opt" "-flto" \
 130    {lto-14c.c} {} "liblto-14.a"] \
 131   [list "Compile 15a" \
 132    "" "-flto" \
 133    {lto-15a.c} {} ""] \
 134   [list "Build liblto-15.a" \
 135    "$plug_opt" "-flto" \
 136    {lto-15b.c} {} "liblto-15.a"] \
 137   [list "PR ld/12696" \
 138    "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto" \
 139    {pr12696-1.cc} {} "pr12696-1r.o" "c++"] \
 140   [list "Compile PR ld/12758" \
 141    "" "" \
 142    {pr12758a.s} {} ""] \
 143   [list "Build libpr12758.a" \
 144    "" "-flto -O2 $lto_fat" \
 145    {pr12758b.c} {} "libpr12758.a"] \
 146   [list "PR ld/12758" \
 147    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" "" \
 148    {dummy.c} {} "pr12758.exe"] \
 149   [list "Compile PR ld/12760" \
 150    "" "-g -O0" \
 151    {pr12760a.c} {} ""] \
 152   [list "Build libpr12760.a" \
 153    "" "-flto -O2 $lto_fat" \
 154    {pr12760b.c} {} "libpr12760.a"] \
 155   [list "PR ld/12760" \
 156    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" "" \
 157    {dummy.c} {} "pr12760.exe" "c" "pr12760a.c:6: warning: Bad \\.?bar"] \
 158   [list "Build libpr13183.a" \
 159    "-T" "-flto -O2 $lto_fat" \
 160    {pr13183a.c} {} "libpr13183.a"] \
 161   [list "Compile PR ld/13183" \
 162    "" "-flto -O2" \
 163    {pr13183b.c} {} ""] \
 164   [list "Compile PR ld/13201" \
 165    "" "-flto -O2" \
 166    {pr13201.c} {} ""] \
 167   [list "PR ld/13287" \
 168    "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto" \
 169    {pr13287.cc} {} "pr13287.exe" "c++"] \
 170   [list "PR ld/15323 (1)" \
 171    "" "-O2" \
 172    {pr15323a.c} {} "" "c"] \
 173   [list "PR ld/15323 (2)" \
 174    "-O2 -flto -r -nostdlib" "-O2 -flto" \
 175    {pr15323a.c} {} "pr15323a-r.o" "c"] \
 176   [list "Compile(1) PR ld/pr16846" \
 177    "" "-flto" \
 178    {pr16846a.c pr16846b.c} {} ""] \
 179   [list "Compile(2) PR ld/pr16846" \
 180    "" "" \
 181    {pr16846c.c} {} ""] \
 182   [list "PR ld/pr16846(1)" \
 183    "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846b.o tmpdir/pr16846c.o" "" \
 184    {dummy.c} {} "pr16846a.exe"] \
 185   [list "PR ld/pr16846(2)" \
 186    "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846c.o tmpdir/pr16846b.o" "" \
 187    {dummy.c} {} "pr16846b.exe"] \
 188   [list "PR ld/19317 (1)" \
 189    "$plug_opt" "-flto $lto_no_fat" \
 190    {pr19317.c} {} "libpr19317.a"] \
 191   [list "Build pr20276a.o" \
 192    "" "-fno-lto" \
 193    {pr20276a.c}] \
 194   [list "Build pr20276b.o" \
 195    "$plug_opt" "-flto $lto_no_fat" \
 196    {pr20276b.c}] \
 197   [list "Build pr20267a.o" \
 198    "" "" \
 199    {pr20267a.c}] \
 200   [list "Build libpr20267a.a" \
 201    "$plug_opt" "-flto $lto_fat" \
 202    {pr20267b.c} {} "libpr20267a.a"] \
 203   [list "Build libpr20267b.a" \
 204    "$plug_opt" "-flto $lto_no_fat" \
 205    {pr20267b.c} {} "libpr20267b.a"] \
 206   [list "Build pr20321" \
 207    "-flto -Wl,-plugin,$plug_so" "-flto" \
 208    {pr20321.c} {} "pr20321" "c" ".*: duplicated plugin"] \
 209 ]
 210
 211 if { [at_least_gcc_version 4 7] } {
 212     set lto_link_tests [concat $lto_link_tests [list \
 213       [list "Compile PR ld/12942 (1)" \
 214        "" "-flto -O2" \
 215        {pr12942a.cc pr12942c.cc} {} "" "c++"] \
 216       [list "Compile PR ld/12942 (2)" \
 217        "" "-O0" \
 218        {pr12942b.cc} {} "" "c++"] \
 219     ]]
 220 }
 221
 222 set lto_compile_elf_tests [list \
 223   [list "Compile 7" \
 224    "" "-flto -O2" \
 225    {lto-7a.c lto-7b.c lto-7c.c} {} ""] \
 226   [list "Compile 8a" \
 227    "" "-O2" \
 228    {lto-8a.c} {} ""] \
 229   [list "Compile 8b" \
 230    "" "-flto -O2" \
 231    {lto-8b.c} {} ""] \
 232 ]
 233
 234 # Generate input files for complex LTO tests for ELF.
 235 set lto_link_elf_tests [list \
 236   [list "Build liblto-7.so" \
 237    "-shared" "-O2 -fpic" \
 238    {lto-7d.c} {} "liblto-7.so" "c"] \
 239   [list "Build liblto-17a.so" \
 240    "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto" \
 241    {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"] \
 242   [list "Build liblto-17b.so 1" \
 243    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
 244    {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"] \
 245   [list "Build liblto-17b.so 2" \
 246    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
 247    {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"] \
 248   [list "PR ld/12982" \
 249    "-O2 -flto -fuse-linker-plugin" "-O2 -flto" \
 250    {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"] \
 251   [list "PR ld/12975" \
 252    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto" \
 253    {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"] \
 254   [list "PR ld/13229" \
 255    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto" \
 256    {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"] \
 257   [list "PR ld/13244" \
 258    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto" \
 259    {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"] \
 260   [list "Build libpr15146a.a" \
 261    "$plug_opt" "-flto -O2" \
 262    {pr15146a.c} {} "lib15146a.a"] \
 263   [list "Build pr15146b.so" \
 264    "-shared" "-O2 -fpic" \
 265    {pr15146b.c} {} "pr15146b.so" "c"] \
 266   [list "Build pr15146c.so" \
 267    "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic" \
 268    {pr15146c.c} {} "pr15146c.so" "c"] \
 269   [list "PR ld/15146 (1)" \
 270    "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" "" \
 271    {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"] \
 272   [list "Build libpr15146d.a" \
 273    "$plug_opt" "-flto -O2" \
 274    {pr15146d.c} {} "lib15146d.a"] \
 275   [list "Build libpr16746a.a" \
 276    "" "" \
 277    {pr16746a.c pr16746b.c} {} "lib15146a.a"] \
 278   [list "Build libpr16746b.a" \
 279    "$plug_opt" "-O2 -flto" \
 280    {pr16746c.c pr16746d.c} {} "lib15146b.a"] \
 281   [list "PR ld/16746 (1)" \
 282    "-O2 -flto -fuse-linker-plugin tmpdir/pr16746a.o tmpdir/pr16746c.o" "-O2 -flto" \
 283    {dummy.c} {} "pr16746a.exe"] \
 284   [list "PR ld/16746 (2)" \
 285    "-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
 286    {dummy.c} {} "pr16746b.exe"] \
 287   [list "PR ld/14918" \
 288    "-flto" "-flto" \
 289    {pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
 290 ]
 291
 292 # Check final symbols in executables.
 293 set lto_link_symbol_tests [list \
 294   [list "LTO 3 symbol" \
 295    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
 296    {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"] \
 297   [list "LTO 5 symbol" \
 298    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
 299    {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"] \
 300   [list "LTO 9 symbol" \
 301    "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" "" \
 302    {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"] \
 303   [list "LTO 16a symbol" \
 304    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto" \
 305    {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"] \
 306   [list "LTO 16b symbol" \
 307    "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto" \
 308    {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"] \
 309   [list "PR ld/13183" \
 310    "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" "" \
 311    {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"] \
 312 ]
 313
 314 # LTO run-time tests.
 315 set lto_run_tests [list \
 316   [list "LTO 3a" \
 317    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
 318    {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"] \
 319   [list "LTO 3b" \
 320    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" "" \
 321    {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"] \
 322   [list "LTO 3c" \
 323    "-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" "" \
 324    {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"] \
 325   [list "LTO 5" \
 326    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
 327    {dummy.c} "lto-5.exe" "lto-5.out" "" "c"] \
 328   [list "LTO 11" \
 329    "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" "" \
 330    {dummy.c} "lto-11.exe" "lto-11.out" "" "c"] \
 331   [list "LTO 12a" \
 332    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" "" \
 333    {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"] \
 334   [list "LTO 12b" \
 335    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" "" \
 336    {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"] \
 337   [list "LTO 13" \
 338    "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" "" \
 339    {dummy.c} "lto-13.exe" "lto-13.out" "" "c"] \
 340   [list "LTO 14" \
 341    "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" "" \
 342    {dummy.c} "lto-14.exe" "lto-14.out" "" "c"] \
 343   [list "LTO 15" \
 344    "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" "" \
 345    {dummy.c} "lto-15.exe" "lto-15.out" "" "c"] \
 346   [list "PR ld/13066" \
 347    "-O2 -flto -fuse-linker-plugin" "" \
 348    {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"] \
 349   [list "PR ld/13201" \
 350    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
 351    {dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
 352   [list "PR ld/15323 (3)" \
 353    "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
 354    {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
 355   [list "PR ld/15323 (4)" \
 356    "-O2 -flto tmpdir/pr15323a-r.o" "" \
 357    {dummy.c} "pr15323a.exe" "pr15323.out" "-flto -O2" "c"] \
 358   [list "PR ld/19317 (3)" \
 359    "-O2 -flto tmpdir/pr19317-r.o" "" \
 360    {dummy.c} "pr19317.exe" "pr19317.out" "-flto -O2" "c"] \
 361   [list "Run pr20276" \
 362    "-O2 -flto tmpdir/pr20276a.o tmpdir/pr20276b.o" "" \
 363    {dummy.c} "pr20276" "pass.out" "-flto -O2" "c"] \
 364   [list "Run pr20267a" \
 365    "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267a.a" "" \
 366    {dummy.c} "pr20267a" "pass.out" "-flto -O2" "c"] \
 367   [list "Run pr20267b" \
 368    "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267b.a" "" \
 369    {dummy.c} "pr20267b" "pass.out" "-flto -O2" "c"] \
 370 ]
 371
 372 if { [at_least_gcc_version 4 7] } {
 373     set lto_run_tests [concat $lto_run_tests [list \
 374       [list "PR ld/12942 (1)" \
 375        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" "" \
 376        {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"] \
 377       [list "PR ld/12942 (2)" \
 378        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" "" \
 379        {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"] \
 380     ]]
 381 }
 382
 383 # LTO run-time tests for ELF which require shared library support.
 384 set lto_run_elf_shared_tests [list \
 385   [list "LTO 7" \
 386    "-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" "" \
 387    {dummy.c} "lto-7.exe" "lto-7.out" "" "c"] \
 388 ]
 389
 390 # LTO run-time tests for ELF
 391 set lto_run_elf_tests [list \
 392   [list "LTO 8" \
 393    "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" "" \
 394    {dummy.c} "lto-8.exe" "lto-8.out" "" "c"] \
 395   [list "LTO TLS IE" \
 396    "-O2 -flto -fuse-linker-plugin" "" \
 397    {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"] \
 398 ]
 399
 400 run_cc_link_tests $lto_link_tests
 401
 402 # These compilation tests generate intermediate object files which will be used
 403 # by some elf tests besides shared libs tests.  So, always compile them.
 404 run_cc_link_tests $lto_compile_elf_tests
 405
 406 # Restrict these to ELF targets that support shared libs and PIC.
 407 if { [is_elf_format] && [check_lto_shared_available] } {
 408     run_cc_link_tests $lto_link_elf_tests
 409     set testname "PR ld/15146 (2)"
 410     set exec_output [run_host_cmd "$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"]
 411     if { [ regexp "undefined reference to symbol '\\.?xxx'" $exec_output ] } {
 412         pass $testname
 413     } {
 414         fail $testname
 415     }
 416     set testname "PR ld/16746 (3)"
 417     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
 418     if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 419         pass $testname
 420     } {
 421         fail $testname
 422     }
 423     set testname "PR ld/16746 (4)"
 424     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
 425     if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 426         pass $testname
 427     } {
 428         fail $testname
 429     }
 430 }
 431
 432 set testname "Build liblto-11.a"
 433 remote_file host delete "tmpdir/liblto-11.a"
 434 set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
 435 if {![string match "" $catch_output]} {
 436     unresolved $testname
 437     restore_notify
 438     return
 439 }
 440
 441 if { [at_least_gcc_version 4 7] } {
 442     # Check expected LTO linker errors.
 443     # Since the asm symbol name hack in pr12365b.c doesn't work on all
 444     # targets, run PR ld/12365 tests only for known targets.
 445     if { ([istarget "i?86-*-elf*"]
 446            || (([istarget "i?86-*-linux*"] || [istarget "i?86-*-gnu*"])
 447                 && ![istarget "*-*-*aout*"]
 448                 && ![istarget "*-*-*oldld*"])
 449            || [istarget "i?86-*-nacl*"]
 450            || [istarget "x86_64-*-nacl*"]
 451            || [istarget "x86_64-*-linux*"]
 452            || [istarget "amd64-*-linux*"]) } {
 453         set testname "PR ld/12365"
 454         set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin -o tmpdir/pr12365 tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
 455         if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
 456             # Linker should catch the reference to undefined `my_bcopy'
 457             # error caused by a GCC bug.
 458             pass $testname
 459         } elseif { [ string match "" $exec_output ] } {
 460             global READELF
 461             set exec_output [run_host_cmd "$READELF" "-s -W tmpdir/pr12365"]
 462             if { [ regexp "my_bcopy" $exec_output ] } {
 463                 # Verify that there is no `my_bcopy' symbol in executable.
 464                 fail $testname
 465             } {
 466                 pass $testname
 467             }
 468         } {
 469             fail $testname
 470         }
 471     }
 472     set testname "PR ld/12942 (3)"
 473     set exec_output [run_host_cmd "$CXX" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
 474     if { [ regexp "undefined reference to `\\.?link_error\\(\\)'" $exec_output ] } {
 475         pass $testname
 476     } {
 477         fail $testname
 478     }
 479 }
 480
 481 # Run "ld -r" to generate inputs for complex LTO tests.
 482 run_dump_test "lto-3r"
 483 remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
 484 run_dump_test "lto-5r"
 485 remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
 486
 487 run_cc_link_tests $lto_link_symbol_tests
 488
 489 run_ld_link_tests [list \
 490   [list "PR ld/19317 (2)" \
 491    "-r tmpdir/pr19317.o" "" "" \
 492    {dummy.s} {} "pr19317-r.o"] \
 493 ]
 494
 495 run_ld_link_exec_tests $lto_run_tests
 496
 497 if { [is_elf_format] } {
 498     run_ld_link_exec_tests $lto_run_elf_tests
 499 }
 500
 501 if { [is_elf_format] && [check_lto_shared_available] } {
 502     run_ld_link_exec_tests $lto_run_elf_shared_tests
 503 }
 504
 505 proc pr20103 {cflags libs} {
 506     global CC
 507
 508     set testname "PR ld/20103 ($cflags $libs)"
 509     set exec_output [run_host_cmd "$CC" "$cflags $libs"]
 510     if { [ regexp "undefined reference to `\\.?dead'" $exec_output ] } {
 511         pass "$testname (1)"
 512     } {
 513         fail "$testname (1)"
 514     }
 515     if { [ regexp "plugin needed to handle lto object" $exec_output ] } {
 516         fail "$testname (2)"
 517     } {
 518         pass "$testname (2)"
 519     }
 520 }
 521
 522 if { [check_lto_fat_available] } {
 523     run_cc_link_tests [list \
 524         [list \
 525             "Build fatpr20103a.a" \
 526             "$plug_opt" "-flto -ffat-lto-objects" \
 527             {pr20103a.c} {} "fatpr20103a.a"
 528         ] \
 529         [list \
 530             "Build fatpr20103b.a" \
 531             "$plug_opt" "-flto -ffat-lto-objects" \
 532             {pr20103b.c} {} "fatpr20103b.a"
 533         ] \
 534         [list \
 535             "Build fatpr20103c.a" \
 536             "$plug_opt" "-flto -ffat-lto-objects" \
 537             {pr20103c.c} {} "fatpr20103c.a" \
 538         ] \
 539         [list \
 540             "Build thinpr20103a.a" \
 541             "$plug_opt" "-flto -fno-fat-lto-objects" \
 542             {pr20103a.c} {} "thinpr20103a.a"
 543         ] \
 544         [list \
 545             "Build thinpr20103b.a" \
 546             "$plug_opt" "-flto -fno-fat-lto-objects" \
 547             {pr20103b.c} {} "thinpr20103b.a"
 548         ] \
 549         [list \
 550             "Build thinpr20103c.a" \
 551             "$plug_opt" "-flto -fno-fat-lto-objects" \
 552             {pr20103c.c} {} "thinpr20103c.a" \
 553         ] \
 554         [list \
 555             "Build pr20103a" \
 556             "-O2 -flto -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
 557             "-O2 -flto" \
 558             {dummy.c} {} "pr20103a" \
 559         ] \
 560         [list \
 561             "Build pr20103b" \
 562             "-O2 -flto -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
 563             "-O2 -flto" \
 564             {dummy.c} {} "pr20103b" \
 565         ] \
 566         [list \
 567             "Build pr20103c" \
 568             "-O2 -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
 569             "-O2" \
 570             {dummy.c} {} "pr20103c" \
 571         ] \
 572     ]
 573     pr20103 "-O2 -flto" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
 574     pr20103 "-O2 -flto" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
 575     pr20103 "-O2" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
 576
 577     if { [at_least_gcc_version 4 9] } {
 578         run_cc_link_tests [list \
 579             [list \
 580                 "Build pr20103d" \
 581                 "-O2 -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
 582                 "-O2" \
 583                 {dummy.c} {} "pr20103d" \
 584             ] \
 585         ]
 586         pr20103 "-O2" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
 587     }
 588 }
 589
 590 restore_notify