ld/testsuite/ld-plugin/lto.exp

   1 # Expect script for ld-plugin LTO tests
   2 #   Copyright (C) 2011-2014 Free Software Foundation, Inc.
   3 #
   4 # This file is part of the GNU Binutils.
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19 # MA 02110-1301, USA.
  20
  21 # These tests require plugin and LTO.
  22 if { ![check_plugin_api_available]
  23      || ![check_lto_available] } {
  24     return
  25 }
  26
  27 global CFLAGS
  28 global CXXFLAGS
  29 set saved_CFLAGS "$CFLAGS"
  30 set saved_CXXFLAGS "$CXXFLAGS"
  31 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
  32 regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS
  33
  34 proc restore_notify { } {
  35   global saved_CFLAGS
  36   global saved_CXXFLAGS
  37   set CFLAGS "$saved_CFLAGS"
  38   set CXXFLAGS "$saved_CXXFLAGS"
  39 }
  40
  41 # Simple LTO tests and generate input files for complex LTO tests.
  42 set lto_link_tests {
  43   {"LTO 1"
  44    "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin"
  45    {lto-1a.c lto-1b.c} {} "lto-1.exe"}
  46   {"Build libdummy.a 2"
  47    "" "-O2 -flto -fuse-linker-plugin"
  48    {lto-2.c} {} "libdummy.a"}
  49   {"LTO 2"
  50    "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" ""
  51    {dummy.c} {} "lto-2.exe"}
  52   {"Build libdummy.a 3a"
  53    "" "-flto"
  54    {lto-3a.c} {} "libdummy.a"}
  55   {"Build libdummy.a 3c"
  56    "" "-O2"
  57    {lto-3c.c} {} "libdummy.a"}
  58   {"Build liblto-3.a"
  59    "" "-flto -ffat-lto-objects"
  60    {lto-3b.c} {} "liblto-3.a"}
  61   {"Build libdummy.a 5a"
  62    "" "-flto"
  63    {lto-5a.c} {} "libdummy.a"}
  64   {"Build libdummy.a 5b"
  65    "" "-flto"
  66    {lto-5b.c} {} "libdummy.a"}
  67   {"LTO 6"
  68    "-O2 -flto -fuse-linker-plugin" ""
  69    {lto-6.c} {} "lto-6.exe" "c"}
  70   {"Build libdummy.a 9"
  71    "" "-O2 -finline -flto"
  72    {lto-9.cc} {} "libdummy.a" "c++"}
  73   {"Build libdummy.a 11a"
  74    "" "-O -flto"
  75    {lto-11a.c} {} "libdummy.a"}
  76   {"Build libdummy.a 11b"
  77    "" "-O -flto"
  78    {lto-11b.c} {} "libdummy.a"}
  79   {"Build libdummy.a 11c"
  80    "" "-O"
  81    {lto-11c.c} {} "libdummy.a"}
  82   {"Build liblto-12.a"
  83    "" "-O2 -flto"
  84    {lto-12c.c} {} "liblto-12.a"}
  85   {"Build libdummy.a 12"
  86    "" "-O2 -flto"
  87    {lto-12a.c lto-12b.c} {} "libdummy.a"}
  88   {"Build libdummy.a 13"
  89    "" "-O2 -flto"
  90    {lto-13a.c lto-13b.c} {} "libdummy.a"}
  91   {"Build liblto-13.a"
  92    "" "-O2"
  93    {lto-13c.c} {} "liblto-13.a"}
  94   {"Build libdummy.a 14a"
  95    "" "-flto"
  96    {lto-14a.c lto-14b.c} {} "libdummy.a"}
  97   {"Build liblto-14.a"
  98    "" "-flto"
  99    {lto-14c.c} {} "liblto-14.a"}
 100   {"Build libdummy.a 15a"
 101    "" "-flto"
 102    {lto-15a.c} {} "libdummy.a"}
 103   {"Build liblto-15.a"
 104    "" "-flto"
 105    {lto-15b.c} {} "liblto-15.a"}
 106   {"PR ld/12696"
 107    "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto"
 108    {pr12696-1.cc} {} "pr12696-1r.o" "c++"}
 109   {"Build libdummy.a PR ld/12758"
 110    "" ""
 111    {pr12758a.s} {} "libdummy.a"}
 112   {"Build libpr12758.a"
 113    "" "-flto -O2 -ffat-lto-objects"
 114    {pr12758b.c} {} "libpr12758.a"}
 115   {"PR ld/12758"
 116    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" ""
 117    {dummy.c} {} "pr12758.exe"}
 118   {"Build libdummy.a PR ld/12760"
 119    "" "-g -O0"
 120    {pr12760a.c} {} "libdummy.a"}
 121   {"Build libpr12760.a"
 122    "" "-flto -O2 -ffat-lto-objects"
 123    {pr12760b.c} {} "libpr12760.a"}
 124   {"PR ld/12760"
 125    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" ""
 126    {dummy.c} {} "pr12760.exe" "c" "pr12760a.c:6: warning: Bad bar"}
 127   {"Build libpr13183.a"
 128    "-T" "-flto -O2 -ffat-lto-objects"
 129    {pr13183a.c} {} "libpr13183.a"}
 130   {"Build libdummy.a PR ld/13183"
 131    "" "-flto -O2"
 132    {pr13183b.c} {} "libdummy.a"}
 133   {"Build libdummy.a PR ld/13201"
 134    "" "-flto -O2"
 135    {pr13201.c} {} "libdummy.a"}
 136   {"PR ld/13287"
 137    "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto"
 138    {pr13287.cc} {} "pr13287.exe" "c++"}
 139   {"PR ld/15323"
 140    "" "-O2"
 141    {pr15323a.c} {} "libdummy.a" "c"}
 142   {"Build libdummy.a(1) PR ld/pr16846"
 143    "" "-flto"
 144    {pr16846a.c pr16846b.c} {} "libdummy.a"}
 145   {"Build libdummy.a(2) PR ld/pr16846"
 146    "" ""
 147    {pr16846c.c} {} "libdummy.a"}
 148   {"PR ld/pr16846(1)"
 149    "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846b.o tmpdir/pr16846c.o" ""
 150    {dummy.c} {} "pr16846a.exe"}
 151   {"PR ld/pr16846(2)"
 152    "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846c.o tmpdir/pr16846b.o" ""
 153    {dummy.c} {} "pr16846b.exe"}
 154 }
 155
 156 if { [at_least_gcc_version 4 7] } {
 157     set lto_link_tests [concat $lto_link_tests {
 158       {"Build libdummy.a PR ld/12942 (1)"
 159        "" "-flto -O2"
 160        {pr12942a.cc pr12942c.cc} {} "libdummy.a" "c++"}
 161       {"Build libdummy.a PR ld/12942 (2)"
 162        "" "-O0"
 163        {pr12942b.cc} {} "libdummy.a" "c++"}
 164     }]
 165 }
 166
 167 # Generate input files for complex LTO tests for ELF.
 168 set lto_link_elf_tests {
 169   {"Build libdummy.a 7"
 170    "" "-flto -O2"
 171    {lto-7a.c lto-7b.c lto-7c.c} {} "libdummy.a"}
 172   {"Build liblto-7.so"
 173    "-shared" "-O2 -fpic"
 174    {lto-7d.c} {} "liblto-7.so" "c"}
 175   {"Build libdummy.a 8a"
 176    "" "-O2"
 177    {lto-8a.c} {} "libdummy.a"}
 178   {"Build libdummy.a 8b"
 179    "" "-flto -O2"
 180    {lto-8b.c} {} "libdummy.a"}
 181   {"Build liblto-17a.so"
 182    "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto"
 183    {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"}
 184   {"Build liblto-17b.so 1"
 185    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto"
 186    {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"}
 187   {"Build liblto-17b.so 2"
 188    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto"
 189    {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"}
 190   {"PR ld/12982"
 191    "-O2 -flto -fuse-linker-plugin" "-O2 -flto"
 192    {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"}
 193   {"PR ld/12975"
 194    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto"
 195    {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"}
 196   {"PR ld/13229"
 197    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto"
 198    {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"}
 199   {"PR ld/13244"
 200    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto"
 201    {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"}
 202   {"Build libpr15146a.a"
 203    "" "-flto -O2"
 204    {pr15146a.c} {} "lib15146a.a"}
 205   {"Build pr15146b.so"
 206    "-shared" "-O2 -fpic"
 207    {pr15146b.c} {} "pr15146b.so" "c"}
 208   {"Build pr15146c.so"
 209    "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic"
 210    {pr15146c.c} {} "pr15146c.so" "c"}
 211   {"PR ld/15146 (1)"
 212    "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" ""
 213    {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"}
 214   {"Build libpr15146d.a"
 215    "" "-flto -O2"
 216    {pr15146d.c} {} "lib15146d.a"}
 217   {"Build libpr15146d.a"
 218    "" "-flto -O2"
 219    {pr15146d.c} {} "lib15146d.a"}
 220 }
 221
 222 # Check final symbols in executables.
 223 set lto_link_symbol_tests {
 224   {"LTO 3 symbol"
 225    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" ""
 226    {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"}
 227   {"LTO 5 symbol"
 228    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" ""
 229    {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"}
 230   {"LTO 9 symbol"
 231    "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" ""
 232    {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"}
 233   {"LTO 16a symbol"
 234    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto"
 235    {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"}
 236   {"LTO 16b symbol"
 237    "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto"
 238    {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"}
 239   {"PR ld/13183"
 240    "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" ""
 241    {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"}
 242 }
 243
 244 # LTO run-time tests.
 245 set lto_run_tests {
 246   {"LTO 3a"
 247    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" ""
 248    {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"}
 249   {"LTO 3b"
 250    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" ""
 251    {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"}
 252   {"LTO 3c"
 253    "-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" ""
 254    {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"}
 255   {"LTO 5"
 256    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" ""
 257    {dummy.c} "lto-5.exe" "lto-5.out" "" "c"}
 258   {"LTO 11"
 259    "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" ""
 260    {dummy.c} "lto-11.exe" "lto-11.out" "" "c"}
 261   {"LTO 12a"
 262    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" ""
 263    {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"}
 264   {"LTO 12b"
 265    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" ""
 266    {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"}
 267   {"LTO 13"
 268    "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" ""
 269    {dummy.c} "lto-13.exe" "lto-13.out" "" "c"}
 270   {"LTO 14"
 271    "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" ""
 272    {dummy.c} "lto-14.exe" "lto-14.out" "" "c"}
 273   {"LTO 15"
 274    "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" ""
 275    {dummy.c} "lto-15.exe" "lto-15.out" "" "c"}
 276   {"PR ld/13066"
 277    "-O2 -flto -fuse-linker-plugin" ""
 278    {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"}
 279   {"PR ld/13201"
 280    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" ""
 281    {dummy.c} "pr13201.exe" "pr13201.out" "" "c"}
 282   {"PR ld/15323"
 283    "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" ""
 284    {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"}
 285 }
 286
 287 if { [at_least_gcc_version 4 7] } {
 288     set lto_run_tests [concat $lto_run_tests {
 289       {"PR ld/12942 (1)"
 290        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" ""
 291        {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"}
 292       {"PR ld/12942 (2)"
 293        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" ""
 294        {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"}
 295     }]
 296 }
 297
 298 # LTO run-time tests for ELF
 299 set lto_run_elf_tests {
 300   {"LTO 7"
 301    "-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" ""
 302    {dummy.c} "lto-7.exe" "lto-7.out" "" "c"}
 303   {"LTO 8"
 304    "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" ""
 305    {dummy.c} "lto-8.exe" "lto-8.out" "" "c"}
 306   {"LTO TLS IE"
 307    "-O2 -flto -fuse-linker-plugin" ""
 308    {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"}
 309 }
 310
 311 run_cc_link_tests $lto_link_tests
 312
 313 # Restrict these to ELF targets that support shared libs and PIC.
 314 if { [is_elf_format] && [check_lto_shared_available] } {
 315     run_cc_link_tests $lto_link_elf_tests
 316     set testname "PR ld/15146 (2)"
 317     set exec_output [run_host_cmd "$CC" "$gcc_gas_flag $gcc_ld_flag -O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146d.o tmpdir/pr15146c.so"]
 318     if { [ regexp "undefined reference to symbol 'xxx'" $exec_output ] } {
 319         pass $testname
 320     } {
 321         fail $testname
 322     }
 323 }
 324
 325 set testname "Build liblto-11.a"
 326 remote_file host delete "tmpdir/liblto-11.a"
 327 set catch_output [run_host_cmd "$ar" "rc tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
 328 if {![string match "" $catch_output]} {
 329     unresolved $testname
 330     restore_notify
 331     return
 332 }
 333
 334 if { [at_least_gcc_version 4 7] } {
 335     # Check expected LTO linker errors.
 336     set testname "PR ld/12942 (3)"
 337     set exec_output [run_host_cmd "$CXX" "$gcc_gas_flag $gcc_ld_flag -O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
 338     if { [ regexp "undefined reference to `link_error\\(\\)'" $exec_output ] } {
 339         pass $testname
 340     } {
 341         fail $testname
 342     }
 343 }
 344
 345 # Run "ld -r" to generate inputs for complex LTO tests.
 346 run_dump_test "lto-3r"
 347 remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
 348 run_dump_test "lto-5r"
 349 remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
 350
 351 run_cc_link_tests $lto_link_symbol_tests
 352
 353 # The following tests require running the executable generated by ld.
 354 if ![isnative] {
 355     return
 356 }
 357
 358 run_ld_link_exec_tests [] $lto_run_tests
 359
 360 if { [is_elf_format] } {
 361     run_ld_link_exec_tests [] $lto_run_elf_tests
 362 }
 363
 364 restore_notify