ld/testsuite/ld-plugin/lto.exp

   1 # Expect script for ld-plugin LTO tests
   2 #   Copyright (C) 2011-2022 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 { ![check_compiler_available] || [which $CXX_FOR_TARGET] == 0 } {
  23     return
  24 }
  25
  26 # These tests require plugin and LTO.
  27 if { ![check_plugin_api_available]
  28      || ![check_lto_available] } {
  29     return
  30 }
  31
  32 set saved_CFLAGS "$CFLAGS_FOR_TARGET"
  33 set saved_CXXFLAGS "$CXXFLAGS_FOR_TARGET"
  34 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS_FOR_TARGET "" CFLAGS_FOR_TARGET
  35 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS_FOR_TARGET "" CXXFLAGS_FOR_TARGET
  36
  37 proc restore_notify { } {
  38   global saved_CFLAGS
  39   global saved_CXXFLAGS
  40   global CFLAGS_FOR_TARGET
  41   global CXXFLAGS_FOR_TARGET
  42   set CFLAGS_FOR_TARGET "$saved_CFLAGS"
  43   set CXXFLAGS_FOR_TARGET "$saved_CXXFLAGS"
  44 }
  45
  46 set lto_fat ""
  47 set lto_no_fat ""
  48 if { [check_lto_fat_available] } {
  49   set lto_fat "-ffat-lto-objects"
  50   set lto_no_fat "-fno-fat-lto-objects"
  51   set no_lto "-fno-lto"
  52 }
  53
  54 # Simple LTO tests and generate input files for complex LTO tests.
  55 set lto_link_tests [list \
  56   [list "LTO 1" \
  57    "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin" \
  58    {lto-1a.c lto-1b.c} {} "lto-1.exe"] \
  59   [list "Compile 2" \
  60    "" "-O2 -flto -fuse-linker-plugin $NOSANITIZE_CFLAGS" \
  61    {lto-2.c} {} ""] \
  62   [list "LTO 2" \
  63    "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" \
  64    "$NOSANITIZE_CFLAGS" \
  65    {dummy.c} {} "lto-2.exe"] \
  66   [list "Compile 3a" \
  67    "" "-flto" \
  68    {lto-3a.c} {} ""] \
  69   [list "Compile 3c" \
  70    "" "-O2" \
  71    {lto-3c.c} {} ""] \
  72   [list "Build liblto-3.a" \
  73    "" "-flto $lto_fat" \
  74    {lto-3b.c} {} "liblto-3.a"] \
  75   [list "Compile 5a" \
  76    "" "-flto $lto_fat" \
  77    {lto-5a.c} {} ""] \
  78   [list "Compile 5b" \
  79    "" "-flto $lto_fat" \
  80    {lto-5b.c} {} ""] \
  81   [list "Compile PR ld/12365" \
  82    "" "-flto -O2 $lto_fat" \
  83    {pr12365a.c pr12365b.c pr12365c.c} {} ""] \
  84   [list "Compile 9" \
  85    "" "-O2 -finline -flto" \
  86    {lto-9.cc} {} "" "c++"] \
  87   [list "Compile 11a" \
  88    "" "-O -flto" \
  89    {lto-11a.c} {} ""] \
  90   [list "Compile 11b" \
  91    "" "-O -flto" \
  92    {lto-11b.c} {} ""] \
  93   [list "Compile 11c" \
  94    "" "-O" \
  95    {lto-11c.c} {} ""] \
  96   [list "Build liblto-12.a" \
  97    "$plug_opt" "-O2 -flto" \
  98    {lto-12c.c} {} "liblto-12.a"] \
  99   [list "Compile 12" \
 100    "" "-O2 -flto" \
 101    {lto-12a.c lto-12b.c} {} ""] \
 102   [list "Compile 13" \
 103    "" "-O2 -flto" \
 104    {lto-13a.c lto-13b.c} {} ""] \
 105   [list "Build liblto-13.a" \
 106    "" "-O2" \
 107    {lto-13c.c} {} "liblto-13.a"] \
 108   [list "Compile 14a" \
 109    "" "-flto" \
 110    {lto-14a.c lto-14b.c} {} ""] \
 111   [list "Build liblto-14.a" \
 112    "$plug_opt" "-flto" \
 113    {lto-14c.c} {} "liblto-14.a"] \
 114   [list "Compile 15a" \
 115    "" "-flto" \
 116    {lto-15a.c} {} ""] \
 117   [list "Build liblto-15.a" \
 118    "$plug_opt" "-flto" \
 119    {lto-15b.c} {} "liblto-15.a"] \
 120   [list "PR ld/12696" \
 121    "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto" \
 122    {pr12696-1.cc} {} "pr12696-1r.o" "c++"] \
 123   [list "Compile PR ld/12758" \
 124    "" "" \
 125    {pr12758a.s} {} ""] \
 126   [list "Build libpr12758.a" \
 127    "" "-flto -O2 $lto_fat $NOSANITIZE_CFLAGS" \
 128    {pr12758b.c} {} "libpr12758.a"] \
 129   [list "PR ld/12758" \
 130    "$NOPIE_LDFLAGS $NOSANITIZE_CFLAGS -O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" \
 131    "$NOSANITIZE_CFLAGS" \
 132    {dummy.c} {} "pr12758.exe"] \
 133   [list "Build libpr13183.a" \
 134    "-T" "-flto -O2 $lto_fat" \
 135    {pr13183a.c} {} "libpr13183.a"] \
 136   [list "Compile PR ld/13183" \
 137    "" "-flto -O2" \
 138    {pr13183b.c} {} ""] \
 139   [list "Compile PR ld/13201" \
 140    "" "-flto -O2" \
 141    {pr13201.c} {} ""] \
 142   [list "PR ld/13287" \
 143    "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto" \
 144    {pr13287.cc} {} "pr13287.exe" "c++"] \
 145   [list "PR ld/15323 (1)" \
 146    "" "-O2" \
 147    {pr15323a.c} {} "" "c"] \
 148   [list "PR ld/15323 (2)" \
 149    "-O2 -flto -r -nostdlib" "-O2 -flto" \
 150    {pr15323a.c} {} "pr15323a-r.o" "c"] \
 151   [list "Compile(1) PR ld/pr16846" \
 152    "" "-flto" \
 153    {pr16846a.c pr16846b.c} {} ""] \
 154   [list "Compile(2) PR ld/pr16846" \
 155    "" "" \
 156    {pr16846c.c} {} ""] \
 157   [list "PR ld/pr16846(1)" \
 158    "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846b.o tmpdir/pr16846c.o" "" \
 159    {dummy.c} {} "pr16846a.exe"] \
 160   [list "PR ld/pr16846(2)" \
 161    "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846c.o tmpdir/pr16846b.o" "" \
 162    {dummy.c} {} "pr16846b.exe"] \
 163   [list "PR ld/19317 (1)" \
 164    "$plug_opt" "-flto $lto_no_fat" \
 165    {pr19317.c} {} "libpr19317.a"] \
 166   [list "Build pr20276a.o" \
 167    "" "-fno-lto -fcommon" \
 168    {pr20276a.c}] \
 169   [list "Build pr20276b.o" \
 170    "$plug_opt" "-flto $lto_no_fat -fcommon" \
 171    {pr20276b.c}] \
 172   [list "Build pr20267a.o" \
 173    "" "-fcommon" \
 174    {pr20267a.c}] \
 175   [list "Build libpr20267a.a" \
 176    "$plug_opt" "-flto $lto_fat -fcommon" \
 177    {pr20267b.c} {} "libpr20267a.a"] \
 178   [list "Build libpr20267b.a" \
 179    "$plug_opt" "-flto $lto_no_fat -fcommon" \
 180    {pr20267b.c} {} "libpr20267b.a"] \
 181   [list "Build pr20321" \
 182    "-flto -Wl,-plugin,$plug_so" "-flto" \
 183    {pr20321.c} {{warning ".*: duplicated plugin"}} \
 184    "pr20321" "c"] \
 185   [list "Build pr22502a.o" \
 186    "" "" \
 187    {pr22502a.c}] \
 188   [list "Build pr22502b.o" \
 189    "$plug_opt" "-flto $lto_no_fat" \
 190    {pr22502b.c}] \
 191   [list "Build pr22751.a" \
 192    "$plug_opt" "-flto $lto_no_fat $INT128_CFLAGS" \
 193    {pr22751.c} {} "pr22751.a"] \
 194   [list "Build pr24406-2b.o" \
 195    "" "-O2 -fno-lto" \
 196    {pr24406-2b.c}] \
 197   [list "Build pr26163a.o" \
 198    "" "-O2 -fno-lto" \
 199    {pr26163a.c}] \
 200   [list "Build pr26262b.o" \
 201    "" "-O2" \
 202    {pr26262b.c} {} "" "c"] \
 203   [list "Build pr26262c.o" \
 204    "" "-O2" \
 205    {pr26262c.c} {} "" "c"] \
 206   [list "Build pr26267a.o" \
 207    "" "-O2 -flto $lto_no_fat" \
 208    {pr26267a.c} {} "" "c"] \
 209   [list "Build pr26267b.o" \
 210    "" "-O2" \
 211    {pr26267b.c} {} "" "c"] \
 212   [list "Build pr26267c.o" \
 213    "" "-O2" \
 214    {pr26267c.c} {} "" "c"] \
 215   [list "Build pr26267a" \
 216    "" "-O2" \
 217    {pr26267a.c} {} "" "c"] \
 218   [list "Build pr26267a" \
 219    "-flto tmpdir/pr26267a.o tmpdir/pr26267b.o tmpdir/pr26267c.o" \
 220    "-flto $lto_no_fat" \
 221    {dummy.c} \
 222    {{error_output "pr26267.err"}} \
 223    "pr26267a"] \
 224   [list "Build pr26267b" \
 225    "-flto tmpdir/pr26267b.o tmpdir/pr26267c.o tmpdir/pr26267a.o" \
 226    "-flto $lto_no_fat" \
 227    {dummy.c} \
 228    {{error_output "pr26267.err"}} \
 229    "pr26267b"] \
 230   [list "Build pr26389.o" \
 231    "$plug_opt" "-flto $lto_no_fat -fcommon" \
 232    {pr26389.c} \
 233    [list [list "nm" "$plug_opt" "pr26389.d"]]] \
 234 ]
 235
 236 if { [at_least_gcc_version 10 0] && [check_lto_shared_available] } {
 237     set lto_link_tests [concat $lto_link_tests [list \
 238         [list "pr25355.o" \
 239          "" \
 240          "-flto -fno-common $lto_no_fat" \
 241          {pr25355.c} \
 242          [list [list "nm" "$plug_opt" "pr25355.d"]]] \
 243         [list "pr28264.so" \
 244          "-shared -Wl,--version-script=pr28264.ver" \
 245          "-flto $lto_no_fat -fPIC" \
 246          {pr28264.c} \
 247          {{readelf {--dyn-syms --wide} pr28264-1.d} \
 248           {readelf {--dyn-syms --wide} pr28264-2.d} \
 249           {readelf {--dyn-syms --wide} pr28264-3.d} \
 250           {readelf {--dyn-syms --wide} pr28264-4.d}} \
 251          {pr28264.so}] \
 252     ]]
 253 }
 254
 255 if { [at_least_gcc_version 4 7] } {
 256     set lto_link_tests [concat $lto_link_tests [list \
 257       [list "Compile PR ld/12942 (1)" \
 258        "" "-flto -O2" \
 259        {pr12942a.cc pr12942c.cc} {} "" "c++"] \
 260       [list "Compile PR ld/12942 (2)" \
 261        "" "-O0" \
 262        {pr12942b.cc} {} "" "c++"] \
 263     ]]
 264 }
 265
 266 set lto_compile_elf_tests [list \
 267   [list "Compile 7" \
 268    "" "-flto -O2" \
 269    {lto-7a.c lto-7b.c lto-7c.c} {} ""] \
 270   [list "Compile 8a" \
 271    "" "-O2" \
 272    {lto-8a.c} {} ""] \
 273   [list "Compile 8b" \
 274    "" "-flto -O2" \
 275    {lto-8b.c} {} ""] \
 276   [list "PR ld/23309" \
 277    "-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections -Wl,--gc-sections,-u,KeepMe" \
 278    "-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections" \
 279    {pr23309.c} {{"nm" {} "pr23309.d"}} "pr23309.exe" "c"] \
 280 ]
 281
 282 # Generate input files for complex LTO tests for ELF.
 283 set lto_link_elf_tests [list \
 284   [list "LTO 6" \
 285    "-O2 -flto -fuse-linker-plugin" "" \
 286    {lto-6.c} {} "lto-6.exe" "c"] \
 287   [list "Build liblto-7.so" \
 288    "-shared" "-O2 -fpic" \
 289    {lto-7d.c} {} "liblto-7.so" "c"] \
 290   [list "Build liblto-17a.so" \
 291    "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto" \
 292    {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"] \
 293   [list "Build liblto-17b.so 1" \
 294    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
 295    {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"] \
 296   [list "Build liblto-17b.so 2" \
 297    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
 298    {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"] \
 299   [list "Compile PR ld/12760" \
 300    "" "-g -O0" \
 301    {pr12760a.c} {} ""] \
 302   [list "Build libpr12760.a" \
 303    "" "-flto -O2 $lto_fat" \
 304    {pr12760b.c} {} "libpr12760.a"] \
 305   [list "PR ld/12760" \
 306    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" "" \
 307    {dummy.c} {{warning "pr12760a.c:6: warning: Bad \\.?bar"}} \
 308    "pr12760.exe" "c"] \
 309   [list "PR ld/12975" \
 310    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto" \
 311    {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"] \
 312   [list "PR ld/13229" \
 313    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto" \
 314    {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"] \
 315   [list "PR ld/13244" \
 316    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto" \
 317    {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"] \
 318   [list "Build libpr15146a.a" \
 319    "$plug_opt" "-flto -O2" \
 320    {pr15146a.c} {} "lib15146a.a"] \
 321   [list "Build pr15146b.so" \
 322    "-shared" "-O2 -fpic" \
 323    {pr15146b.c} {} "pr15146b.so" "c"] \
 324   [list "Build pr15146c.so" \
 325    "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic $no_lto" \
 326    {pr15146c.c} {} "pr15146c.so" "c"] \
 327   [list "PR ld/15146 (1)" \
 328    "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" "" \
 329    {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"] \
 330   [list "Build libpr15146d.a" \
 331    "$plug_opt" "-flto -O2" \
 332    {pr15146d.c} {} "lib15146d.a"] \
 333   [list "Build libpr16746a.a" \
 334    "" "" \
 335    {pr16746a.c pr16746b.c} {} "lib15146a.a"] \
 336   [list "Build libpr16746b.a" \
 337    "$plug_opt" "-O2 -flto" \
 338    {pr16746c.c pr16746d.c} {} "lib15146b.a"] \
 339   [list "PR ld/16746 (1)" \
 340    "-O2 -flto -fuse-linker-plugin tmpdir/pr16746a.o tmpdir/pr16746c.o" "-O2 -flto" \
 341    {dummy.c} {} "pr16746a.exe"] \
 342   [list "PR ld/16746 (2)" \
 343    "-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
 344    {dummy.c} {} "pr16746b.exe"] \
 345   [list "Build pr21382a.o" \
 346    "" "-O2 -flto" \
 347    {pr21382a.c} {} "" "c"] \
 348   [list "Build pr21382.so" \
 349    "-shared" "-O2 -fpic" \
 350    {pr21382b.c} {} "pr21382.so" "c"] \
 351   [list {Build pr22220lib.so} \
 352    {-shared -Wl,--version-script=pr22220lib.ver} {-fPIC} \
 353    {pr22220lib.cc} {} {pr22220lib.so} {c++}] \
 354   [list {Build pr22220main.o} \
 355    {} {-flto} \
 356    {pr22220main.cc} {} {} {c++}] \
 357   [list "Build libpr23818.so" \
 358    "-shared -flto -g -Wl,-version-script,pr23818.t" \
 359    "-g -flto $lto_fat" \
 360    {pr23818a.c pr23818b.c} \
 361    {{"readelf" {-s --wide} "pr23818.d"}} \
 362    "libpr23818.so"] \
 363   [list "Build libpr23958.so" \
 364    "-shared -flto -Wl,-version-script,pr23958.t" \
 365    "-g -flto $lto_fat" \
 366    {pr23958.c} \
 367    "" \
 368    "libpr23958.so"] \
 369   [list "Build pr24486a.o" \
 370    "$plug_opt" "-flto -O2" \
 371    {pr24486a.c} {} "" "c"] \
 372   [list "Build pr24486b.so" \
 373    "-shared" "-O2 -fpic" \
 374    {pr24486b.c} {} "pr24486b.so" "c"] \
 375   [list "Build pr24486c.so" \
 376    "-shared -Wl,--no-as-needed tmpdir/pr24486b.so" "-O2 -fpic" \
 377    {pr24486c.c} {} "pr24486c.so" "c"] \
 378   [list "PR ld/24486" \
 379    "-O2 -flto tmpdir/pr24486a.o tmpdir/pr24486c.so -Wl,--as-needed tmpdir/pr24486b.so" "" \
 380    {dummy.c} {} "pr24486.exe"] \
 381   [list "Build pr25593a-1.o" \
 382    "$plug_opt" "-flto -O2" \
 383    {pr25593a-1.c} {} "" "c"] \
 384   [list "Build pr25593a-2.o" \
 385    "" "-O2" \
 386    {pr25593a-2.c} {} "" "c"] \
 387   [list "Build pr25593b.o" \
 388    "" "-O2" \
 389    {pr25593b.c} {} "" "c"] \
 390   [list "Build pr25593c.so" \
 391    "-shared" "-O2 -fpic" \
 392    {pr25593c.c} {} "pr25593c.so" "c"] \
 393   [list "Build pr25593d.so" \
 394    "-shared" "-O2 -fpic" \
 395    {pr25593d.c} {} "pr25593d.so" "c"] \
 396   [list "Build pr25593e.so" \
 397    "-shared" "-O2 -fpic" \
 398    {pr25593e.c} {} "pr25593e.so" "c"] \
 399   [list "PR ld/r25593 (LTO)" \
 400    "-O2 -flto -Wl,--as-needed tmpdir/pr25593a-1.o tmpdir/pr25593b.o \
 401     tmpdir/pr25593c.so tmpdir/pr25593d.so tmpdir/pr25593e.so" "" \
 402    {dummy.c} {{readelf {-d --wide} pr25593.d}} "pr25593a.exe"] \
 403   [list "PR ld/r25593" \
 404    "-O2 -flto -Wl,--as-needed tmpdir/pr25593a-2.o tmpdir/pr25593b.o \
 405     tmpdir/pr25593c.so tmpdir/pr25593d.so tmpdir/pr25593e.so" "" \
 406    {dummy.c} {{readelf {-d --wide} pr25593.d}} "pr25593b.exe"] \
 407   [list "Build pr25618a.o" \
 408    "$plug_opt" "-O2 -flto -fpic" \
 409    {pr25618a.cc} {} "" "c++"] \
 410   [list "Build pr25618.a" \
 411    "$plug_opt" "-O2 -flto -fpic" \
 412    {pr25618b.cc} {} "pr25618.a" "c++"] \
 413   [list "Build pr25618.so" \
 414    "-shared -Wl,--exclude-libs,ALL tmpdir/pr25618a.o tmpdir/pr25618.a" \
 415    "-fpic" \
 416    {dummy.c} {{readelf {--dyn-syms --wide} pr25618.d}} "pr25618.so" "c++"] \
 417   [list {liblto-18b.so} \
 418    {-shared} {-O2 -fpic} \
 419    {lto-18b.c} {} {liblto-18b.so}] \
 420   [list {liblto-18b.a} \
 421    "$plug_opt" {-flto -O2} \
 422    {lto-18b.c} {} {liblto-18b.a}] \
 423   [list {liblto-18c.so} \
 424    {-shared} {-O2 -fpic} \
 425    {lto-18c.c} {} {liblto-18c.so}] \
 426   [list {liblto-18c.a} \
 427    "$plug_opt" {-flto -O2} \
 428    {lto-18c.c} {} {liblto-18c.a}] \
 429   [list {lto-18d.o} \
 430    {} {-flto -O2} \
 431    {lto-18d.c} {} {}] \
 432   [list {liblto-19.a} \
 433    "$plug_opt" {-flto -O2 -fPIC} \
 434    {lto-19a.c} {} {liblto-19.a}] \
 435   [list {compile lto-19b.c} \
 436    "$plug_opt" {-flto -O2 -fPIC} \
 437    {lto-19b.c} {} {} {c}] \
 438   [list {liblto-19.so} \
 439    {-shared tmpdir/lto-19b.o tmpdir/liblto-19.a} {-O2 -fPIC} \
 440    {dummy.c} {} {liblto-19.so}] \
 441   [list {pr26806.so} \
 442    {-shared} {-fpic -O2 -flto} \
 443    {pr26806.c} {{nm {-D} pr26806.d}} {pr26806.so}] \
 444   [list {pr27311a.so} \
 445    {-shared -Wl,--version-script=pr27311.ver} {-fPIC} \
 446    {pr27311a.c} {} {pr27311a.so}] \
 447   [list {pr27311b.so} \
 448    {-shared -Wl,--no-as-needed tmpdir/pr27311a.so} {-fPIC} \
 449    {pr27311b.c} {} {pr27311b.so}] \
 450   [list {pr27311c.o} \
 451    {} {-flto} \
 452    {pr27311c.c} {} {} {c}] \
 453   [list {pr27311d.o} \
 454    {} {-flto} \
 455    {pr27311d.c} {} {} {c}] \
 456   [list {pr27311-1} \
 457    {tmpdir/pr27311c.o -Wl,--no-as-needed,--rpath-link=. tmpdir/pr27311b.so} {} \
 458    {dummy.c} {{readelf {--dyn-syms --wide} pr27311.d}} {pr27311-1}] \
 459   [list {pr27311-2} \
 460    {tmpdir/pr27311d.o -Wl,--no-as-needed,--rpath-link=. tmpdir/pr27311b.so} {} \
 461    {dummy.c} {{readelf {--dyn-syms --wide} pr27311.d}} {pr27311-2}] \
 462   [list {pr27441a.so} \
 463    {-shared} {-fPIC} \
 464    {pr27441a.c} {} {pr27441a.so}] \
 465   [list {pr27441b.so} \
 466    {-shared} {-fPIC} \
 467    {pr27441b.c} {} {pr27441b.so}] \
 468   [list {pr27441c.o} \
 469    {} {-fPIC -flto} \
 470    {pr27441c.c} {} {}] \
 471   [list {pr27441c.so} \
 472    {-shared -fPIC -Wl,--as-needed tmpdir/pr27441c.o tmpdir/pr27441b.so tmpdir/pr27441a.so} {-fPIC} \
 473    {dummy.c} {{readelf {-dW} pr27441c.d}} {pr27441c.so}] \
 474 ]
 475
 476 # PR 14918 checks that libgcc is not spuriously included in a shared link of
 477 # an empty program.  The ARM crt1.o startup code however calls __libc_csu_init
 478 # in /usr/lib/libc_nonshared.a(elf-init.oS).  This in turn needs
 479 # __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1, so the
 480 # test fails.  Hence this code to skip the test.
 481 if { ! [istarget "arm*-*-*"] } {
 482     lappend lto_link_elf_tests \
 483   [list "PR ld/14918" \
 484    "-flto" "-flto" \
 485    {pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"]
 486 }
 487
 488 # PR 12982 checks that an executable stack is not created by default
 489 # when using the LTO plugin.  The HPPA target however requires an
 490 # executable stack for syscall restarts and signal returns, so we
 491 # skip this test for that target.
 492 if { ! [istarget "hppa*-*-*"] } {
 493     lappend lto_link_elf_tests \
 494   [list "PR ld/12982" \
 495    "-O2 -flto -fuse-linker-plugin" "-O2 -flto" \
 496    {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"]
 497 }
 498
 499 # Check final symbols in executables.
 500 set lto_link_symbol_tests [list \
 501   [list "LTO 3 symbol" \
 502    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
 503    {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"] \
 504   [list "LTO 5 symbol" \
 505    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
 506    {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"] \
 507   [list "LTO 9 symbol" \
 508    "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" "" \
 509    {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"] \
 510   [list "LTO 16a symbol" \
 511    "-O2 $NOSANITIZE_CFLAGS -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" \
 512    "-flto $NOSANITIZE_CFLAGS" \
 513    {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"] \
 514   [list "LTO 16b symbol" \
 515    "-O2 $NOSANITIZE_CFLAGS -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" \
 516    "-flto $NOSANITIZE_CFLAGS" \
 517    {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"] \
 518   [list "PR ld/13183" \
 519    "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" "" \
 520    {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"] \
 521 ]
 522
 523 # LTO run-time tests.
 524 set lto_run_tests [list \
 525   [list "LTO 3a" \
 526    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
 527    {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"] \
 528   [list "LTO 3b" \
 529    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" "" \
 530    {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"] \
 531   [list "LTO 3c" \
 532    "-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" "" \
 533    {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"] \
 534   [list "LTO 5" \
 535    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
 536    {dummy.c} "lto-5.exe" "lto-5.out" "" "c"] \
 537   [list "LTO 11" \
 538    "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" "" \
 539    {dummy.c} "lto-11.exe" "lto-11.out" "" "c"] \
 540   [list "LTO 12a" \
 541    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" "" \
 542    {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"] \
 543   [list "LTO 12b" \
 544    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" "" \
 545    {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"] \
 546   [list "LTO 13" \
 547    "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" "" \
 548    {dummy.c} "lto-13.exe" "lto-13.out" "" "c"] \
 549   [list "LTO 14" \
 550    "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" "" \
 551    {dummy.c} "lto-14.exe" "lto-14.out" "" "c"] \
 552   [list "LTO 15" \
 553    "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" "" \
 554    {dummy.c} "lto-15.exe" "lto-15.out" "" "c"] \
 555   [list "PR ld/13066" \
 556    "-O2 -flto -fuse-linker-plugin" "" \
 557    {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"] \
 558   [list "PR ld/13201" \
 559    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
 560    {dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
 561   [list "PR ld/15323 (3)" \
 562    "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
 563    {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
 564   [list "PR ld/15323 (4)" \
 565    "-O2 -flto tmpdir/pr15323a-r.o" "" \
 566    {dummy.c} "pr15323a.exe" "pr15323.out" "-flto -O2" "c"] \
 567   [list "PR ld/19317 (3)" \
 568    "-O2 -flto tmpdir/pr19317-r.o" "" \
 569    {dummy.c} "pr19317.exe" "pr19317.out" "-flto -O2" "c"] \
 570   [list "Run pr20276" \
 571    "-O2 -flto tmpdir/pr20276a.o tmpdir/pr20276b.o" "" \
 572    {dummy.c} "pr20276" "pass.out" "-flto -O2" "c"] \
 573   [list "Run pr20267a" \
 574    "-O2 -flto -fcommon tmpdir/pr20267a.o tmpdir/libpr20267a.a" "" \
 575    {dummy.c} "pr20267a" "pass.out" "-flto -O2 -fcommon" "c"] \
 576   [list "Run pr20267b" \
 577    "-O2 -flto -fcommon tmpdir/pr20267a.o tmpdir/libpr20267b.a" "" \
 578    {dummy.c} "pr20267b" "pass.out" "-flto -O2 -fcommon" "c"] \
 579   [list "Run pr22502" \
 580    "-O2 -flto tmpdir/pr22502a.o tmpdir/pr22502b.o" "" \
 581    {dummy.c} "pr20267" "pass.out" "-flto -O2 -fcommon" "c"] \
 582   [list "Run pr22751" \
 583    "-O2 -flto" "" \
 584    {dummy.c} "pr22751" "pass.out" "-flto -O2" "c" "" \
 585    "-Wl,--whole-archive tmpdir/pr22751.a -Wl,--no-whole-archive"] \
 586   [list "Run pr24406-1" \
 587    "-O2 -flto" "" \
 588    {pr24406-1.c} "pr24406-1" "pass.out" "-flto -O2" "c" "" \
 589    "-Wl,--wrap=read"] \
 590   [list "Run pr24406-2" \
 591    "-O2 -flto" "" \
 592    {pr24406-2a.c} "pr24406-2" "pass.out" \
 593    "-flto -O2" "c" "" \
 594    "tmpdir/pr24406-2b.o -Wl,--wrap=cook"] \
 595   [list "Run pr26163" \
 596    "-O2 -flto" "" \
 597    {pr26163b.c} "pr24406-2" "pass.out" \
 598    "-flto -O2" "c" "" \
 599    "tmpdir/pr26163a.o -Wl,--defsym,g=real_g"] \
 600   [list "Run pr26262a" \
 601    "-O2 -flto" "" \
 602    {pr26262a.c} "pr26262a" "pass.out" \
 603    "-flto -O2" "c" "" \
 604    "tmpdir/pr26262b.o tmpdir/pr26262c.o"] \
 605   [list "Run pr26262b" \
 606    "-flto -O2 tmpdir/pr26262b.o tmpdir/pr26262c.o" "" \
 607    {pr26262a.c} "pr26262b" "pass.out" \
 608    "-flto -O2" "c" "" \
 609    ""] \
 610 ]
 611
 612 if { [at_least_gcc_version 4 7] } {
 613     set lto_run_tests [concat $lto_run_tests [list \
 614       [list "PR ld/12942 (1)" \
 615        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" "" \
 616        {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"] \
 617       [list "PR ld/12942 (2)" \
 618        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" "" \
 619        {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"] \
 620     ]]
 621 }
 622
 623 # LTO run-time tests for ELF which require shared library support.
 624 set lto_run_elf_shared_tests [list \
 625   [list "LTO 7" \
 626    "-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" "" \
 627    {dummy.c} "lto-7.exe" "lto-7.out" "" "c"] \
 628   [list "Run pr21382" \
 629    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr21382a.o tmpdir/pr21382.so" "" \
 630    {dummy.c} "pr21382.exe" "pass.out" "" "c"] \
 631   [list {pr22220a} \
 632    {-flto -fuse-linker-plugin tmpdir/pr22220main.o tmpdir/pr22220lib.so} {} \
 633    {dummy.c} {pr22220a.exe} {pass.out} {} {c++}] \
 634   [list {pr22220b} \
 635    {-flto -fuse-linker-plugin -Wl,--no-as-needed tmpdir/pr22220lib.so tmpdir/pr22220main.o} {} \
 636    {dummy.c} {pr22220b.exe} {pass.out} {} {c++}] \
 637   [list {lto-18 (1)} \
 638    {-flto -fuse-linker-plugin} {} \
 639    {lto-18a.c} {lto-18-1.exe} {lto-18.out} {-flto -O2} {c} {} \
 640    {tmpdir/lto-18d.o -Wl,--as-needed,-R,tmpdir -Ltmpdir -llto-18b -llto-18c}] \
 641   [list {lto-18 (2)} \
 642    {-flto -fuse-linker-plugin} {} \
 643    {lto-18a.c} {lto-18-2.exe} {lto-18.out} {-flto -O2} {c} {} \
 644    {-Wl,--as-needed,-R,tmpdir -Ltmpdir -llto-18b -llto-18c tmpdir/lto-18d.o}] \
 645   [list {lto-18 (3)} \
 646    {-static -flto -fuse-linker-plugin} {} \
 647    {lto-18a.c} {lto-18-3.exe} {lto-18.out} {-flto -O2} {c} {} \
 648    {tmpdir/lto-18d.o -Ltmpdir -llto-18b -llto-18c}] \
 649   [list {lto-18 (4)} \
 650    {-static -flto -fuse-linker-plugin} {} \
 651    {lto-18a.c} {lto-18-4.exe} {lto-18.out} {-flto -O2} {c} {} \
 652    { -Ltmpdir -llto-18b -llto-18c tmpdir/lto-18d.o}] \
 653   [list {lto-19} \
 654    {-Wl,--as-needed,-R,tmpdir} {} \
 655    {lto-19c.c} {lto-19.exe} {pass.out} {-flto -O2} {c} {} \
 656    {tmpdir/liblto-19.so tmpdir/liblto-19.a}] \
 657 ]
 658
 659 # LTO run-time tests for ELF
 660 set lto_run_elf_tests [list \
 661   [list "LTO 8" \
 662    "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" "" \
 663    {dummy.c} "lto-8.exe" "lto-8.out" "" "c"] \
 664   [list "LTO TLS IE" \
 665    "-O2 -flto -fuse-linker-plugin" "" \
 666    {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"] \
 667 ]
 668
 669 run_cc_link_tests $lto_link_tests
 670
 671 # These compilation tests generate intermediate object files which will be used
 672 # by some elf tests besides shared libs tests.  So, always compile them.
 673 run_cc_link_tests $lto_compile_elf_tests
 674
 675 # Restrict these to ELF targets that support shared libs and PIC.
 676 if { [is_elf_format] && [check_lto_shared_available] } {
 677     run_cc_link_tests $lto_link_elf_tests
 678     set testname "PR ld/15146 (2)"
 679     set exec_output [run_host_cmd "$CC_FOR_TARGET" "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146d.o tmpdir/pr15146c.so"]
 680     if { [ regexp "undefined reference to symbol '\\.?xxx'" $exec_output ] } {
 681         pass $testname
 682     } {
 683         fail $testname
 684     }
 685     set testname "PR ld/16746 (3)"
 686     set exec_output [run_host_cmd "$CC_FOR_TARGET" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
 687     if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 688         pass $testname
 689     } {
 690         fail $testname
 691     }
 692     set testname "PR ld/16746 (4)"
 693     set exec_output [run_host_cmd "$CC_FOR_TARGET" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
 694     if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 695         pass $testname
 696     } {
 697         fail $testname
 698     }
 699 }
 700
 701 run_cc_link_tests [list \
 702     [list \
 703         "Build pr28138.a" \
 704         "-T" "" \
 705         {pr28138-1.c pr28138-2.c pr28138-3.c pr28138-4.c pr28138-5.c \
 706          pr28138-6.c pr28138-7.c} {} "pr28138.a" \
 707     ] \
 708     [list \
 709         "Build pr28138.o" \
 710         "" "" \
 711         {pr28138.c} {} \
 712     ] \
 713 ]
 714
 715 set exec_output [run_host_cmd "sh" \
 716                               "-c \"ulimit -n 20; \
 717                               $CC_FOR_TARGET -Btmpdir/ld -o tmpdir/pr28138 \
 718                               tmpdir/pr28138.o tmpdir/pr28138.a\""]
 719 set exec_output [prune_warnings $exec_output]
 720 if [string match "" $exec_output] then {
 721     if { [isnative] } {
 722         set exec_output [run_host_cmd "tmpdir/pr28138" ""]
 723         if [string match "PASS" $exec_output] then {
 724             pass "PR ld/28138 (build & run)"
 725         } else {
 726             fail "PR ld/28138 (built ok, run failed)"
 727         }
 728     } else {
 729         pass "PR ld/28138 (build only)"
 730     }
 731 } else {
 732     fail "PR ld/28138 (build only)"
 733 }
 734
 735 set testname "Build liblto-11.a"
 736 remote_file host delete "tmpdir/liblto-11.a"
 737 set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
 738 if {![string match "" $catch_output]} {
 739     fail $testname
 740     restore_notify
 741     return
 742 }
 743
 744 if { [at_least_gcc_version 4 7] } {
 745     # Check expected LTO linker errors.
 746     # Since the asm symbol name hack in pr12365b.c doesn't work on all
 747     # targets, run PR ld/12365 tests only for known targets.
 748     if { ([istarget "i?86-*-elf*"]
 749            || [istarget "i?86-*-linux*"]
 750            || [istarget "i?86-*-gnu*"]
 751            || [istarget "x86_64-*-linux*"]
 752            || [istarget "amd64-*-linux*"]) } {
 753         set testname "PR ld/12365"
 754         set exec_output [run_host_cmd "$CC_FOR_TARGET" "-O2 -flto -flto-partition=none -fuse-linker-plugin -o tmpdir/pr12365 tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
 755         set exec_output [prune_warnings $exec_output]
 756         if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
 757             # Linker should catch the reference to undefined `my_bcopy'
 758             # error caused by a GCC bug.
 759             pass $testname
 760         } elseif { [ string match "" $exec_output ] } {
 761             global READELF
 762             set exec_output [run_host_cmd "$READELF" "-s -W tmpdir/pr12365"]
 763             if { [ regexp "my_bcopy" $exec_output ] } {
 764                 # Verify that there is no `my_bcopy' symbol in executable.
 765                 fail $testname
 766             } {
 767                 pass $testname
 768             }
 769         } {
 770             fail $testname
 771         }
 772
 773         run_cc_link_tests [list \
 774             [list \
 775                 "Build pr22721a.so" \
 776                 "-shared $NOSANITIZE_CFLAGS -nostdlib -nostartfiles \
 777                  -Wl,-version-script,pr22721.t" \
 778                 "" \
 779                 {pr22721a.s} \
 780                 {} \
 781                 "pr22721a.so" \
 782             ] \
 783             [list \
 784                 "Build pr22721b.o" \
 785                 "$plug_opt $NOSANITIZE_CFLAGS" \
 786                 "-O2 -fPIC -flto $lto_no_fat" \
 787                 {pr22721b.c} \
 788             ] \
 789             [list \
 790                 "Build PR ld/pr22721" \
 791                 "-O2 -flto -fuse-linker-plugin -nostdlib -nostartfiles \
 792                  $NOSANITIZE_CFLAGS \
 793                  -Wl,-e,_start tmpdir/pr22721b.o tmpdir/pr22721a.so" \
 794                 "$NOSANITIZE_CFLAGS" \
 795                 {dummy.c} \
 796                 {} \
 797                 "pr22721.exe"
 798             ] \
 799         ]
 800     }
 801     set testname "PR ld/12942 (3)"
 802     set exec_output [run_host_cmd "$CXX_FOR_TARGET" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
 803     if { [ regexp "undefined reference to `\\.?link_error\\(\\)'" $exec_output ] } {
 804         pass $testname
 805     } {
 806         fail $testname
 807     }
 808
 809     run_cc_link_tests [list \
 810         [list \
 811             "Build pr23460*.o" \
 812             "$plug_opt" \
 813             "-O2 -fPIC -flto $lto_no_fat" \
 814             {pr23460a.c pr23460b.c pr23460c.c \
 815              pr23460d.c pr23460e.c pr23460f.c} \
 816         ] \
 817     ]
 818     set exec_output [run_host_cmd "sh" \
 819                                   "-c \"ulimit -n 20; \
 820                                    $ar -rc $plug_opt \
 821                                    tmpdir/libpr23460.a \
 822                                    tmpdir/pr23460a.o \
 823                                    tmpdir/pr23460b.o \
 824                                    tmpdir/pr23460c.o \
 825                                    tmpdir/pr23460d.o \
 826                                    tmpdir/pr23460e.o \
 827                                    tmpdir/pr23460f.o\""]
 828     set exec_output [prune_warnings $exec_output]
 829     if [string match "" $exec_output] then {
 830         pass "PR binutils/23460"
 831     } else {
 832         fail "PR binutils/23460"
 833     }
 834     set exec_output [run_host_cmd "$RANLIB" "$plug_opt tmpdir/libpr23460.a"]
 835     set exec_output [prune_warnings $exec_output]
 836     if [string match "" $exec_output] then {
 837         pass "PR binutils/23460"
 838     } else {
 839         fail "PR binutils/23460"
 840     }
 841 }
 842
 843 # Run "ld -r" to generate inputs for complex LTO tests.
 844 run_dump_test "lto-3r"
 845 remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
 846 run_dump_test "lto-5r"
 847 remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
 848
 849 run_cc_link_tests $lto_link_symbol_tests
 850
 851 run_ld_link_tests [list \
 852   [list "PR ld/19317 (2)" \
 853    "-r tmpdir/pr19317.o" "" "" \
 854    {dummy.s} {} "pr19317-r.o"] \
 855 ]
 856
 857 run_ld_link_exec_tests $lto_run_tests
 858
 859 if { [is_elf_format] } {
 860     run_ld_link_exec_tests $lto_run_elf_tests
 861
 862     # Note - it is not guaranteed that the ordering of symbols in the dynamic
 863     # symbol table will match the ordering of the symbols specified by the
 864     # --dynamic-list command line option.
 865     #
 866     # For PR22983 we want to make sure that all four symbols specified in
 867     # pr222983.t are present in the output, but a simple sequences of regexps
 868     # will not work as we do not know the order of the symbols.  (Readelf
 869     # does not have a symbol sorting option and the run_cc_list_tests proc
 870     # does not allow for the output of the dump program to piped into `sort`).
 871     #
 872     # So instead we run readelf four times, each time checking for the
 873     # presence of a specific symbol from the pr22983.t file.
 874     run_cc_link_tests [list \
 875         [list \
 876             "Build pr22983" \
 877             "-Wl,--dynamic-list,pr22983.t" \
 878             "-flto" \
 879              {pr22983a.c pr22983b.c} \
 880             {{readelf {--dyn-syms --wide} pr22983.1.d} \
 881              {readelf {--dyn-syms --wide} pr22983.2.d} \
 882              {readelf {--dyn-syms --wide} pr22983.3.d} \
 883              {readelf {--dyn-syms --wide} pr22983.4.d}} \
 884             "pr22983" \
 885         ] \
 886     ]
 887 }
 888
 889 if { [is_elf_format] && [check_lto_shared_available] } {
 890     run_ld_link_exec_tests $lto_run_elf_shared_tests
 891 }
 892
 893 proc pr20103 {cflags libs} {
 894     global CC_FOR_TARGET
 895
 896     set testname "PR ld/20103 ($cflags $libs)"
 897     set exec_output [run_host_cmd "$CC_FOR_TARGET" "$cflags $libs"]
 898     if { [ regexp "undefined reference to `\\.?dead'" $exec_output ] } {
 899         pass "$testname (1)"
 900     } {
 901         fail "$testname (1)"
 902     }
 903     if { [ regexp "plugin needed to handle lto object" $exec_output ] } {
 904         fail "$testname (2)"
 905     } {
 906         pass "$testname (2)"
 907     }
 908 }
 909
 910 if { [check_lto_fat_available] } {
 911     run_cc_link_tests [list \
 912         [list \
 913             "Build fatpr20103a.a" \
 914             "$plug_opt" "-flto -ffat-lto-objects" \
 915             {pr20103a.c} {} "fatpr20103a.a"
 916         ] \
 917         [list \
 918             "Build fatpr20103b.a" \
 919             "$plug_opt" "-flto -ffat-lto-objects" \
 920             {pr20103b.c} {} "fatpr20103b.a"
 921         ] \
 922         [list \
 923             "Build fatpr20103c.a" \
 924             "$plug_opt" "-flto -ffat-lto-objects" \
 925             {pr20103c.c} {} "fatpr20103c.a" \
 926         ] \
 927         [list \
 928             "Build thinpr20103a.a" \
 929             "$plug_opt" "-flto -fno-fat-lto-objects" \
 930             {pr20103a.c} {} "thinpr20103a.a"
 931         ] \
 932         [list \
 933             "Build thinpr20103b.a" \
 934             "$plug_opt" "-flto -fno-fat-lto-objects" \
 935             {pr20103b.c} {} "thinpr20103b.a"
 936         ] \
 937         [list \
 938             "Build thinpr20103c.a" \
 939             "$plug_opt" "-flto -fno-fat-lto-objects" \
 940             {pr20103c.c} {} "thinpr20103c.a" \
 941         ] \
 942         [list \
 943             "Build pr20103a" \
 944             "-O2 -flto -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
 945             "-O2 -flto" \
 946             {dummy.c} {} "pr20103a" \
 947         ] \
 948         [list \
 949             "Build pr20103b" \
 950             "-O2 -flto -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
 951             "-O2 -flto" \
 952             {dummy.c} {} "pr20103b" \
 953         ] \
 954         [list \
 955             "Build pr20103c" \
 956             "-O2 -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
 957             "-O2" \
 958             {dummy.c} {} "pr20103c" \
 959         ] \
 960     ]
 961     pr20103 "-O2 -flto" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
 962     pr20103 "-O2 -flto" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
 963     pr20103 "-O2" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
 964
 965     if { [at_least_gcc_version 4 9] } {
 966         run_cc_link_tests [list \
 967             [list \
 968                 "Build pr20103d" \
 969                 "-O2 -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
 970                 "-O2" \
 971                 {dummy.c} {} "pr20103d" \
 972             ] \
 973         ]
 974         pr20103 "-O2" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
 975     }
 976 }
 977
 978 restore_notify