ld/testsuite/ld-plugin/lto.exp

   1 # Expect script for ld-plugin LTO tests
   2 #   Copyright 2011, 2012, 2013
   3 #   Free Software Foundation, Inc.
   4 #
   5 # This file is part of the GNU Binutils.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20 # MA 02110-1301, USA.
  21
  22 # These tests require plugin and LTO.
  23 if { ![check_plugin_api_available]
  24      || ![check_lto_available] } {
  25     return
  26 }
  27
  28 global CFLAGS
  29 global CXXFLAGS
  30 set saved_CFLAGS "$CFLAGS"
  31 set saved_CXXFLAGS "$CXXFLAGS"
  32 regsub -all "\\-Wp,-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
  33 regsub -all "\\-Wp,-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS
  34
  35 proc restore_notify { } {
  36   global saved_CFLAGS
  37   global saved_CXXFLAGS
  38   set CFLAGS "$saved_CFLAGS"
  39   set CXXFLAGS "$saved_CXXFLAGS"
  40 }
  41
  42 # Simple LTO tests and generate input files for complex LTO tests.
  43 set lto_link_tests {
  44   {"LTO 1"
  45    "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin"
  46    {lto-1a.c lto-1b.c} {} "lto-1.exe"}
  47   {"Build libdummy.a 2"
  48    "" "-O2 -flto -fuse-linker-plugin"
  49    {lto-2.c} {} "libdummy.a"}
  50   {"LTO 2"
  51    "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" ""
  52    {dummy.c} {} "lto-2.exe"}
  53   {"Build libdummy.a 3a"
  54    "" "-flto"
  55    {lto-3a.c} {} "libdummy.a"}
  56   {"Build libdummy.a 3c"
  57    "" "-O2"
  58    {lto-3c.c} {} "libdummy.a"}
  59   {"Build liblto-3.a"
  60    "" "-flto -ffat-lto-objects"
  61    {lto-3b.c} {} "liblto-3.a"}
  62   {"Build libdummy.a 5a"
  63    "" "-flto"
  64    {lto-5a.c} {} "libdummy.a"}
  65   {"Build libdummy.a 5b"
  66    "" "-flto"
  67    {lto-5b.c} {} "libdummy.a"}
  68   {"LTO 6"
  69    "-O2 -flto -fuse-linker-plugin" ""
  70    {lto-6.c} {} "lto-6.exe" "c"}
  71   {"Build libdummy.a 9"
  72    "" "-O2 -finline -flto"
  73    {lto-9.cc} {} "libdummy.a"}
  74   {"Build libdummy.a 11a"
  75    "" "-O -flto"
  76    {lto-11a.c} {} "libdummy.a"}
  77   {"Build libdummy.a 11b"
  78    "" "-O -flto"
  79    {lto-11b.c} {} "libdummy.a"}
  80   {"Build libdummy.a 11c"
  81    "" "-O"
  82    {lto-11c.c} {} "libdummy.a"}
  83   {"Build liblto-12.a"
  84    "" "-O2 -flto"
  85    {lto-12c.c} {} "liblto-12.a"}
  86   {"Build libdummy.a 12"
  87    "" "-O2 -flto"
  88    {lto-12a.c lto-12b.c} {} "libdummy.a"}
  89   {"Build libdummy.a 13"
  90    "" "-O2 -flto"
  91    {lto-13a.c lto-13b.c} {} "libdummy.a"}
  92   {"Build liblto-13.a"
  93    "" "-O2"
  94    {lto-13c.c} {} "liblto-13.a"}
  95   {"Build libdummy.a 14a"
  96    "" "-flto"
  97    {lto-14a.c lto-14b.c} {} "libdummy.a"}
  98   {"Build liblto-14.a"
  99    "" "-flto"
 100    {lto-14c.c} {} "liblto-14.a"}
 101   {"Build libdummy.a 15a"
 102    "" "-flto"
 103    {lto-15a.c} {} "libdummy.a"}
 104   {"Build liblto-15.a"
 105    "" "-flto"
 106    {lto-15b.c} {} "liblto-15.a"}
 107   {"PR ld/12696"
 108    "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto"
 109    {pr12696-1.cc} {} "pr12696-1r.o" "c"}
 110   {"Build libdummy.a PR ld/12758"
 111    "" ""
 112    {pr12758a.s} {} "libdummy.a"}
 113   {"Build libpr12758.a"
 114    "" "-flto -O2 -ffat-lto-objects"
 115    {pr12758b.c} {} "libpr12758.a"}
 116   {"PR ld/12758"
 117    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" ""
 118    {dummy.c} {} "pr12758.exe"}
 119   {"Build libdummy.a PR ld/12760"
 120    "" ""
 121    {pr12760a.c} {} "libdummy.a"}
 122   {"Build libpr12760.a"
 123    "" "-flto -O2 -ffat-lto-objects"
 124    {pr12760b.c} {} "libpr12760.a"}
 125   {"PR ld/12760"
 126    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" ""
 127    {dummy.c} {} "pr12760.exe" "c" "warning: Bad bar"}
 128   {"Build libpr13183.a"
 129    "-T" "-flto -O2 -ffat-lto-objects"
 130    {pr13183a.c} {} "libpr13183.a"}
 131   {"Build libdummy.a PR ld/13183"
 132    "" "-flto -O2"
 133    {pr13183b.c} {} "libdummy.a"}
 134   {"Build libdummy.a PR ld/13201"
 135    "" "-flto -O2"
 136    {pr13201.c} {} "libdummy.a"}
 137   {"PR ld/13287"
 138    "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto"
 139    {pr13287.cc} {} "pr13287.exe" "c++"}
 140   {"PR ld/15323"
 141    "" "-O2"
 142    {pr15323a.c} {} "libdummy.a" "c"}
 143 }
 144
 145 if { [at_least_gcc_version 4 7] } {
 146     set lto_link_tests [concat $lto_link_tests {
 147       {"Build libdummy.a PR ld/12942 (1)"
 148        "" "-flto -O2"
 149        {pr12942a.cc pr12942c.cc} {} "libdummy.a" "c++"}
 150       {"Build libdummy.a PR ld/12942 (2)"
 151        "" "-O0"
 152        {pr12942b.cc} {} "libdummy.a" "c++"}
 153     }]
 154 }
 155
 156 # Generate input files for complex LTO tests for ELF.
 157 set lto_link_elf_tests {
 158   {"Build libdummy.a 7"
 159    "" "-flto -O2"
 160    {lto-7a.c lto-7b.c lto-7c.c} {} "libdummy.a"}
 161   {"Build liblto-7.so"
 162    "-shared" "-O2 -fpic"
 163    {lto-7d.c} {} "liblto-7.so" "c"}
 164   {"Build libdummy.a 8a"
 165    "" "-O2"
 166    {lto-8a.c} {} "libdummy.a"}
 167   {"Build libdummy.a 8b"
 168    "" "-flto -O2"
 169    {lto-8b.c} {} "libdummy.a"}
 170   {"Build liblto-17a.so"
 171    "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto"
 172    {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"}
 173   {"Build liblto-17b.so 1"
 174    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto"
 175    {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"}
 176   {"Build liblto-17b.so 2"
 177    "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto"
 178    {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"}
 179   {"PR ld/12982"
 180    "-O2 -flto -fuse-linker-plugin" "-O2 -flto"
 181    {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"}
 182   {"PR ld/12975"
 183    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto"
 184    {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"}
 185   {"PR ld/13229"
 186    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto"
 187    {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"}
 188   {"PR ld/13244"
 189    "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto"
 190    {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"}
 191   {"Build libpr15146a.a"
 192    "" "-flto -O2"
 193    {pr15146a.c} {} "lib15146a.a"}
 194   {"Build pr15146b.so"
 195    "-shared" "-O2 -fpic"
 196    {pr15146b.c} {} "pr15146b.so" "c"}
 197   {"Build pr15146c.so"
 198    "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic"
 199    {pr15146c.c} {} "pr15146c.so" "c"}
 200   {"PR ld/15146 (1)"
 201    "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" ""
 202    {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"}
 203   {"Build libpr15146d.a"
 204    "" "-flto -O2"
 205    {pr15146d.c} {} "lib15146d.a"}
 206   {"Build libpr15146d.a"
 207    "" "-flto -O2"
 208    {pr15146d.c} {} "lib15146d.a"}
 209 }
 210
 211 # Check final symbols in executables.
 212 set lto_link_symbol_tests {
 213   {"LTO 3 symbol"
 214    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" ""
 215    {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"}
 216   {"LTO 5 symbol"
 217    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" ""
 218    {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"}
 219   {"LTO 9 symbol"
 220    "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" ""
 221    {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"}
 222   {"LTO 16a symbol"
 223    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto"
 224    {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"}
 225   {"LTO 16b symbol"
 226    "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto"
 227    {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"}
 228   {"PR ld/13183"
 229    "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" ""
 230    {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"}
 231 }
 232
 233 # LTO run-time tests.
 234 set lto_run_tests {
 235   {"LTO 3a"
 236    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" ""
 237    {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"}
 238   {"LTO 3b"
 239    "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" ""
 240    {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"}
 241   {"LTO 3c"
 242    "-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" ""
 243    {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"}
 244   {"LTO 5"
 245    "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" ""
 246    {dummy.c} "lto-5.exe" "lto-5.out" "" "c"}
 247   {"LTO 11"
 248    "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" ""
 249    {dummy.c} "lto-11.exe" "lto-11.out" "" "c"}
 250   {"LTO 12a"
 251    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" ""
 252    {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"}
 253   {"LTO 12b"
 254    "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" ""
 255    {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"}
 256   {"LTO 13"
 257    "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" ""
 258    {dummy.c} "lto-13.exe" "lto-13.out" "" "c"}
 259   {"LTO 14"
 260    "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" ""
 261    {dummy.c} "lto-14.exe" "lto-14.out" "" "c"}
 262   {"LTO 15"
 263    "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" ""
 264    {dummy.c} "lto-15.exe" "lto-15.out" "" "c"}
 265   {"PR ld/13066"
 266    "-O2 -flto -fuse-linker-plugin" ""
 267    {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"}
 268   {"PR ld/13201"
 269    "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" ""
 270    {dummy.c} "pr13201.exe" "pr13201.out" "" "c"}
 271   {"PR ld/15323"
 272    "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" ""
 273    {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"}
 274 }
 275
 276 if { [at_least_gcc_version 4 7] } {
 277     set lto_run_tests [concat $lto_run_tests {
 278       {"PR ld/12942 (1)"
 279        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" ""
 280        {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"}
 281       {"PR ld/12942 (2)"
 282        "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" ""
 283        {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"}
 284     }]
 285 }
 286
 287 # LTO run-time tests for ELF
 288 set lto_run_elf_tests {
 289   {"LTO 7"
 290    "-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" ""
 291    {dummy.c} "lto-7.exe" "lto-7.out" "" "c"}
 292   {"LTO 8"
 293    "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" ""
 294    {dummy.c} "lto-8.exe" "lto-8.out" "" "c"}
 295   {"LTO TLS IE"
 296    "-O2 -flto -fuse-linker-plugin" ""
 297    {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"}
 298 }
 299
 300 run_cc_link_tests $lto_link_tests
 301
 302 # Restrict these to ELF targets that support shared libs and PIC.
 303 if { [is_elf_format]
 304      && [run_host_cmd_yesno $CC "-shared -fPIC $srcdir/$subdir/dummy.c -o tmpdir/t.so"] } {
 305     run_cc_link_tests $lto_link_elf_tests
 306     set testname "PR ld/15146 (2)"
 307     set exec_output [run_host_cmd "$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"]
 308     if { [ regexp "undefined reference to symbol 'xxx'" $exec_output ] } {
 309         pass $testname
 310     } {
 311         fail $testname
 312     }
 313 }
 314
 315 set testname "Build liblto-11.a"
 316 remote_file host delete "tmpdir/liblto-11.a"
 317 set catch_output [run_host_cmd "$ar" "rc tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
 318 if {![string match "" $catch_output]} {
 319     unresolved $testname
 320     restore_notify
 321     return
 322 }
 323
 324 if { [at_least_gcc_version 4 7] } {
 325     # Check expected LTO linker errors.
 326     set testname "PR ld/12942 (3)"
 327     set exec_output [run_host_cmd "$CXX" "$gcc_gas_flag $gcc_ld_flag -O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
 328     if { [ regexp "undefined reference to `link_error\\(\\)'" $exec_output ] } {
 329         pass $testname
 330     } {
 331         fail $testname
 332     }
 333 }
 334
 335 # Run "ld -r" to generate inputs for complex LTO tests.
 336 run_dump_test "lto-3r"
 337 remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
 338 run_dump_test "lto-5r"
 339 remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
 340
 341 run_cc_link_tests $lto_link_symbol_tests
 342
 343 # The following tests require running the executable generated by ld.
 344 if ![isnative] {
 345     return
 346 }
 347
 348 run_ld_link_exec_tests [] $lto_run_tests
 349
 350 if { [is_elf_format] } {
 351     run_ld_link_exec_tests [] $lto_run_elf_tests
 352 }
 353
 354 restore_notify