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 ]
 223
 224 if { [at_least_gcc_version 4 7] } {
 225     set lto_link_tests [concat $lto_link_tests [list \
 226       [list "Compile PR ld/12942 (1)" \
 227        "" "-flto -O2" \
 228        {pr12942a.cc pr12942c.cc} {} "" "c++"] \
 229       [list "Compile PR ld/12942 (2)" \
 230        "" "-O0" \
 231        {pr12942b.cc} {} "" "c++"] \
 232     ]]
 233 }
 234
 235 set lto_compile_elf_tests [list \
 236   [list "Compile 7" \
 237    "" "-flto -O2" \
 238    {lto-7a.c lto-7b.c lto-7c.c} {} ""] \
 239   [list "Compile 8a" \
 240    "" "-O2" \
 241    {lto-8a.c} {} ""] \
 242   [list "Compile 8b" \
 243    "" "-flto -O2" \
 244    {lto-8b.c} {} ""] \
 245 ]
 246
 247 # Generate input files for complex LTO tests for ELF.
 248 set lto_link_elf_tests [list \
 249   [list "Build liblto-7.so" \
 250    "-shared" "-O2 -fpic" \
 251    {lto-7d.c} {} "liblto-7.so" "c"] \
 252   [list "Build liblto-17a.so" \
 253    "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto" \
 254    {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"] \
 255   [list "Build liblto-17b.so 1" \
 256    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
 257    {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"] \
 258   [list "Build liblto-17b.so 2" \
 259    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
 260    {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"] \
 261   [list "PR ld/12982" \
 262    "-O2 -flto -fuse-linker-plugin" "-O2 -flto" \
 263    {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"] \
 264   [list "PR ld/12975" \
 265    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto" \
 266    {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"] \
 267   [list "PR ld/13229" \
 268    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto" \
 269    {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"] \
 270   [list "PR ld/13244" \
 271    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto" \
 272    {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"] \
 273   [list "Build libpr15146a.a" \
 274    "$plug_opt" "-flto -O2" \
 275    {pr15146a.c} {} "lib15146a.a"] \
 276   [list "Build pr15146b.so" \
 277    "-shared" "-O2 -fpic" \
 278    {pr15146b.c} {} "pr15146b.so" "c"] \
 279   [list "Build pr15146c.so" \
 280    "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic" \
 281    {pr15146c.c} {} "pr15146c.so" "c"] \
 282   [list "PR ld/15146 (1)" \
 283    "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" "" \
 284    {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"] \
 285   [list "Build libpr15146d.a" \
 286    "$plug_opt" "-flto -O2" \
 287    {pr15146d.c} {} "lib15146d.a"] \
 288   [list "Build libpr16746a.a" \
 289    "" "" \
 290    {pr16746a.c pr16746b.c} {} "lib15146a.a"] \
 291   [list "Build libpr16746b.a" \
 292    "$plug_opt" "-O2 -flto" \
 293    {pr16746c.c pr16746d.c} {} "lib15146b.a"] \
 294   [list "PR ld/16746 (1)" \
 295    "-O2 -flto -fuse-linker-plugin tmpdir/pr16746a.o tmpdir/pr16746c.o" "-O2 -flto" \
 296    {dummy.c} {} "pr16746a.exe"] \
 297   [list "PR ld/16746 (2)" \
 298    "-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
 299    {dummy.c} {} "pr16746b.exe"] \
 300   [list "Build pr21382a.o" \
 301    "" "-O2 -flto" \
 302    {pr21382a.c} {} "" "c"] \
 303   [list "Build pr21382.so" \
 304    "-shared" "-O2 -fpic" \
 305    {pr21382b.c} {} "pr21382.so" "c"] \
 306   [list {Build pr22220lib.so} \
 307    {-shared -Wl,--version-script=pr22220lib.ver} {-fPIC} \
 308    {pr22220lib.cc} {} {pr22220lib.so} {c++}] \
 309   [list {Build pr22220main.o} \
 310    {} {-flto} \
 311    {pr22220main.cc} {} {} {c++}] \
 312 ]
 313
 314 # PR 14918 checks that libgcc is not spuriously included in a shared link of
 315 # an empty program.  The ARM crt1.o startup code however calls __libc_csu_init
 316 # in /usr/lib/libc_nonshared.a(elf-init.oS).  This in turn needs
 317 # __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1, so the
 318 # test fails.  Hence this code to skip the test.
 319 if { ! [istarget "arm*-*-*"] } {
 320     set lto_link_elf_tests [concat $lto_link_elf_tests [list \
 321   [list "PR ld/14918" \
 322    "-flto" "-flto" \
 323    {pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
 324   ]]
 325 }
 326
 327 # Check final symbols in executables.
 328 set lto_link_symbol_tests [list \
 329   [list "LTO 3 symbol" \
 330    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
 331    {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"] \
 332   [list "LTO 5 symbol" \
 333    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
 334    {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"] \
 335   [list "LTO 9 symbol" \
 336    "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" "" \
 337    {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"] \
 338   [list "LTO 16a symbol" \
 339    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto" \
 340    {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"] \
 341   [list "LTO 16b symbol" \
 342    "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto" \
 343    {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"] \
 344   [list "PR ld/13183" \
 345    "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" "" \
 346    {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"] \
 347 ]
 348
 349 # LTO run-time tests.
 350 set lto_run_tests [list \
 351   [list "LTO 3a" \
 352    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
 353    {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"] \
 354   [list "LTO 3b" \
 355    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" "" \
 356    {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"] \
 357   [list "LTO 3c" \
 358    "-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" "" \
 359    {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"] \
 360   [list "LTO 5" \
 361    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
 362    {dummy.c} "lto-5.exe" "lto-5.out" "" "c"] \
 363   [list "LTO 11" \
 364    "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" "" \
 365    {dummy.c} "lto-11.exe" "lto-11.out" "" "c"] \
 366   [list "LTO 12a" \
 367    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" "" \
 368    {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"] \
 369   [list "LTO 12b" \
 370    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" "" \
 371    {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"] \
 372   [list "LTO 13" \
 373    "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" "" \
 374    {dummy.c} "lto-13.exe" "lto-13.out" "" "c"] \
 375   [list "LTO 14" \
 376    "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" "" \
 377    {dummy.c} "lto-14.exe" "lto-14.out" "" "c"] \
 378   [list "LTO 15" \
 379    "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" "" \
 380    {dummy.c} "lto-15.exe" "lto-15.out" "" "c"] \
 381   [list "PR ld/13066" \
 382    "-O2 -flto -fuse-linker-plugin" "" \
 383    {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"] \
 384   [list "PR ld/13201" \
 385    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
 386    {dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
 387   [list "PR ld/15323 (3)" \
 388    "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
 389    {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
 390   [list "PR ld/15323 (4)" \
 391    "-O2 -flto tmpdir/pr15323a-r.o" "" \
 392    {dummy.c} "pr15323a.exe" "pr15323.out" "-flto -O2" "c"] \
 393   [list "PR ld/19317 (3)" \
 394    "-O2 -flto tmpdir/pr19317-r.o" "" \
 395    {dummy.c} "pr19317.exe" "pr19317.out" "-flto -O2" "c"] \
 396   [list "Run pr20276" \
 397    "-O2 -flto tmpdir/pr20276a.o tmpdir/pr20276b.o" "" \
 398    {dummy.c} "pr20276" "pass.out" "-flto -O2" "c"] \
 399   [list "Run pr20267a" \
 400    "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267a.a" "" \
 401    {dummy.c} "pr20267a" "pass.out" "-flto -O2" "c"] \
 402   [list "Run pr20267b" \
 403    "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267b.a" "" \
 404    {dummy.c} "pr20267b" "pass.out" "-flto -O2" "c"] \
 405   [list "Run pr22502" \
 406    "-O2 -flto tmpdir/pr22502a.o tmpdir/pr22502b.o" "" \
 407    {dummy.c} "pr20267" "pass.out" "-flto -O2" "c"] \
 408   [list "Run pr22751" \
 409    "-O2 -flto" "" \
 410    {dummy.c} "pr22751" "pass.out" "-flto -O2" "c" "" \
 411    "-Wl,--whole-archive tmpdir/pr22751.a -Wl,--no-whole-archive"] \
 412 ]
 413
 414 if { [at_least_gcc_version 4 7] } {
 415     set lto_run_tests [concat $lto_run_tests [list \
 416       [list "PR ld/12942 (1)" \
 417        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" "" \
 418        {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"] \
 419       [list "PR ld/12942 (2)" \
 420        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" "" \
 421        {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"] \
 422     ]]
 423 }
 424
 425 # LTO run-time tests for ELF which require shared library support.
 426 set lto_run_elf_shared_tests [list \
 427   [list "LTO 7" \
 428    "-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" "" \
 429    {dummy.c} "lto-7.exe" "lto-7.out" "" "c"] \
 430   [list "Run pr21382" \
 431    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr21382a.o tmpdir/pr21382.so" "" \
 432    {dummy.c} "pr21382.exe" "pass.out" "" "c"] \
 433   [list {pr22220a} \
 434    {-flto -fuse-linker-plugin tmpdir/pr22220main.o tmpdir/pr22220lib.so} {} \
 435    {dummy.c} {pr22220a.exe} {pass.out} {} {c++}] \
 436   [list {pr22220b} \
 437    {-flto -fuse-linker-plugin -Wl,--no-as-needed tmpdir/pr22220lib.so tmpdir/pr22220main.o} {} \
 438    {dummy.c} {pr22220b.exe} {pass.out} {} {c++}] \
 439 ]
 440
 441 # LTO run-time tests for ELF
 442 set lto_run_elf_tests [list \
 443   [list "LTO 8" \
 444    "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" "" \
 445    {dummy.c} "lto-8.exe" "lto-8.out" "" "c"] \
 446   [list "LTO TLS IE" \
 447    "-O2 -flto -fuse-linker-plugin" "" \
 448    {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"] \
 449 ]
 450
 451 run_cc_link_tests $lto_link_tests
 452
 453 # These compilation tests generate intermediate object files which will be used
 454 # by some elf tests besides shared libs tests.  So, always compile them.
 455 run_cc_link_tests $lto_compile_elf_tests
 456
 457 # Restrict these to ELF targets that support shared libs and PIC.
 458 if { [is_elf_format] && [check_lto_shared_available] } {
 459     run_cc_link_tests $lto_link_elf_tests
 460     set testname "PR ld/15146 (2)"
 461     set exec_output [run_host_cmd "$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"]
 462     if { [ regexp "undefined reference to symbol '\\.?xxx'" $exec_output ] } {
 463         pass $testname
 464     } {
 465         fail $testname
 466     }
 467     set testname "PR ld/16746 (3)"
 468     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
 469     if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 470         pass $testname
 471     } {
 472         fail $testname
 473     }
 474     set testname "PR ld/16746 (4)"
 475     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
 476     if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 477         pass $testname
 478     } {
 479         fail $testname
 480     }
 481 }
 482
 483 set testname "Build liblto-11.a"
 484 remote_file host delete "tmpdir/liblto-11.a"
 485 set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
 486 if {![string match "" $catch_output]} {
 487     unresolved $testname
 488     restore_notify
 489     return
 490 }
 491
 492 if { [at_least_gcc_version 4 7] } {
 493     # Check expected LTO linker errors.
 494     # Since the asm symbol name hack in pr12365b.c doesn't work on all
 495     # targets, run PR ld/12365 tests only for known targets.
 496     if { ([istarget "i?86-*-elf*"]
 497            || (([istarget "i?86-*-linux*"] || [istarget "i?86-*-gnu*"])
 498                 && ![istarget "*-*-*aout*"]
 499                 && ![istarget "*-*-*oldld*"])
 500            || [istarget "i?86-*-nacl*"]
 501            || [istarget "x86_64-*-nacl*"]
 502            || [istarget "x86_64-*-linux*"]
 503            || [istarget "amd64-*-linux*"]) } {
 504         set testname "PR ld/12365"
 505         set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin -o tmpdir/pr12365 tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
 506         if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
 507             # Linker should catch the reference to undefined `my_bcopy'
 508             # error caused by a GCC bug.
 509             pass $testname
 510         } elseif { [ string match "" $exec_output ] } {
 511             global READELF
 512             set exec_output [run_host_cmd "$READELF" "-s -W tmpdir/pr12365"]
 513             if { [ regexp "my_bcopy" $exec_output ] } {
 514                 # Verify that there is no `my_bcopy' symbol in executable.
 515                 fail $testname
 516             } {
 517                 pass $testname
 518             }
 519         } {
 520             fail $testname
 521         }
 522
 523         run_cc_link_tests [list \
 524             [list \
 525                 "Build pr22721a.so" \
 526                 "-shared -nostdlib -nostartfiles -Wl,-version-script,pr22721.t" \
 527                 "" \
 528                 {pr22721a.s} \
 529                 {} \
 530                 "pr22721a.so" \
 531             ] \
 532             [list \
 533                 "Build pr22721b.o" \
 534                 "$plug_opt" \
 535                 "-O2 -fPIC -flto $lto_no_fat" \
 536                 {pr22721b.c} \
 537             ] \
 538             [list \
 539                 "Build PR ld/pr22721" \
 540                 "-O2 -flto -fuse-linker-plugin -nostdlib -nostartfiles \
 541                 -Wl,-e,_start tmpdir/pr22721b.o tmpdir/pr22721a.so" \
 542                 "" \
 543                 {dummy.c} \
 544                 {} \
 545                 "pr22721.exe"
 546             ] \
 547         ]
 548     }
 549     set testname "PR ld/12942 (3)"
 550     set exec_output [run_host_cmd "$CXX" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
 551     if { [ regexp "undefined reference to `\\.?link_error\\(\\)'" $exec_output ] } {
 552         pass $testname
 553     } {
 554         fail $testname
 555     }
 556 }
 557
 558 # Run "ld -r" to generate inputs for complex LTO tests.
 559 run_dump_test "lto-3r"
 560 remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
 561 run_dump_test "lto-5r"
 562 remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
 563
 564 run_cc_link_tests $lto_link_symbol_tests
 565
 566 run_ld_link_tests [list \
 567   [list "PR ld/19317 (2)" \
 568    "-r tmpdir/pr19317.o" "" "" \
 569    {dummy.s} {} "pr19317-r.o"] \
 570 ]
 571
 572 run_ld_link_exec_tests $lto_run_tests
 573
 574 if { [is_elf_format] } {
 575     run_ld_link_exec_tests $lto_run_elf_tests
 576     run_cc_link_tests [list \
 577         [list \
 578             "Build pr22983" \
 579             "-Wl,--dynamic-list,pr22983.t" \
 580             "-flto" \
 581             {pr22983a.c pr22983b.c} \
 582             {{readelf {--dyn-syms --wide} pr22983.d}} \
 583             "pr22983" \
 584         ] \
 585     ]
 586 }
 587
 588 if { [is_elf_format] && [check_lto_shared_available] } {
 589     run_ld_link_exec_tests $lto_run_elf_shared_tests
 590 }
 591
 592 proc pr20103 {cflags libs} {
 593     global CC
 594
 595     set testname "PR ld/20103 ($cflags $libs)"
 596     set exec_output [run_host_cmd "$CC" "$cflags $libs"]
 597     if { [ regexp "undefined reference to `\\.?dead'" $exec_output ] } {
 598         pass "$testname (1)"
 599     } {
 600         fail "$testname (1)"
 601     }
 602     if { [ regexp "plugin needed to handle lto object" $exec_output ] } {
 603         fail "$testname (2)"
 604     } {
 605         pass "$testname (2)"
 606     }
 607 }
 608
 609 if { [check_lto_fat_available] } {
 610     run_cc_link_tests [list \
 611         [list \
 612             "Build fatpr20103a.a" \
 613             "$plug_opt" "-flto -ffat-lto-objects" \
 614             {pr20103a.c} {} "fatpr20103a.a"
 615         ] \
 616         [list \
 617             "Build fatpr20103b.a" \
 618             "$plug_opt" "-flto -ffat-lto-objects" \
 619             {pr20103b.c} {} "fatpr20103b.a"
 620         ] \
 621         [list \
 622             "Build fatpr20103c.a" \
 623             "$plug_opt" "-flto -ffat-lto-objects" \
 624             {pr20103c.c} {} "fatpr20103c.a" \
 625         ] \
 626         [list \
 627             "Build thinpr20103a.a" \
 628             "$plug_opt" "-flto -fno-fat-lto-objects" \
 629             {pr20103a.c} {} "thinpr20103a.a"
 630         ] \
 631         [list \
 632             "Build thinpr20103b.a" \
 633             "$plug_opt" "-flto -fno-fat-lto-objects" \
 634             {pr20103b.c} {} "thinpr20103b.a"
 635         ] \
 636         [list \
 637             "Build thinpr20103c.a" \
 638             "$plug_opt" "-flto -fno-fat-lto-objects" \
 639             {pr20103c.c} {} "thinpr20103c.a" \
 640         ] \
 641         [list \
 642             "Build pr20103a" \
 643             "-O2 -flto -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
 644             "-O2 -flto" \
 645             {dummy.c} {} "pr20103a" \
 646         ] \
 647         [list \
 648             "Build pr20103b" \
 649             "-O2 -flto -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
 650             "-O2 -flto" \
 651             {dummy.c} {} "pr20103b" \
 652         ] \
 653         [list \
 654             "Build pr20103c" \
 655             "-O2 -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
 656             "-O2" \
 657             {dummy.c} {} "pr20103c" \
 658         ] \
 659     ]
 660     pr20103 "-O2 -flto" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
 661     pr20103 "-O2 -flto" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
 662     pr20103 "-O2" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
 663
 664     if { [at_least_gcc_version 4 9] } {
 665         run_cc_link_tests [list \
 666             [list \
 667                 "Build pr20103d" \
 668                 "-O2 -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
 669                 "-O2" \
 670                 {dummy.c} {} "pr20103d" \
 671             ] \
 672         ]
 673         pr20103 "-O2" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
 674     }
 675 }
 676
 677 restore_notify