1 # Support routines for LD testsuite.
2 # Copyright (C) 1994-2020 Free Software Foundation, Inc.
4 # This file is part of the GNU Binutils.
6 # This file 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.
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.
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,
21 proc load_common_lib { name } {
23 load_file $srcdir/../../binutils/testsuite/lib/$name
26 load_common_lib binutils-common.exp
28 # Returns 1 if the gcc for the target is at least version MAJOR.MINOR
29 # Returns 0 otherwise.
31 proc at_least_gcc_version { major minor } {
34 if {![info exists CC]} {
40 set state [remote_exec host $CC --version]
41 if { [lindex $state 0] != 0 } {
44 set tmp "[lindex $state 1]\n"
45 # Look for (eg) 4.6.1 in the version output.
46 set ver_re "\[^\\.0-9\]+(\[1-9\]\[0-9\]*)\\.(\[0-9\]+)(?:\\.\[0-9\]+)?"
47 regexp $ver_re $tmp fred maj min
48 verbose "gcc version: $tmp"
49 if { ![info exists maj] || ![info exists min] } then {
50 perror "can't decipher gcc version number, fix the framework!"
53 verbose "major gcc version is $maj, want at least $major"
54 if { $maj == $major } then {
55 verbose "minor gcc version is $min, want at least $minor"
56 return [expr $min >= $minor]
58 return [expr $maj > $major]
62 # Extract and print the version number of ld.
64 proc default_ld_version { ld } {
67 if { ![is_remote host] && [which $ld] == 0 } then {
68 perror "$ld does not exist"
72 remote_exec host "$ld --version" "" "/dev/null" "ld.version"
73 remote_upload host "ld.version"
74 set tmp [prune_warnings [file_contents "ld.version"]]
75 remote_file build delete "ld.version"
76 remote_file host delete "ld.version"
78 regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
79 if [info exists number] then {
80 clone_output "$ld $number\n"
84 proc run_host_cmd { prog command } {
88 global gcc_ld_B_opt_tested
91 if { ![is_remote host] && [which "$prog"] == 0 } then {
92 perror "$prog does not exist"
96 # If we are compiling with gcc, we want to add gcc_B_opt and
97 # ld_L_opt to flags. However, if $prog already has -B options,
98 # which might be the case when running gcc out of a build
99 # directory, we want our -B options to come first.
101 set gccparm [string first " " $gccexe]
103 if { $gccparm > 0 } then {
104 set gccflags [string range $gccexe $gccparm end]
105 set gccexe [string range $gccexe 0 $gccparm]
108 set gccexe [string replace $gccexe 0 [string last "/" $gccexe] ""]
109 if {[string match "*cc*" $gccexe] || [string match "*++*" $gccexe]} then {
110 set gccflags "$gcc_B_opt $gccflags $ld_L_opt"
111 if {![info exists gcc_ld_B_opt_tested]} {
112 set gcc_ld_B_opt_tested 1
113 set ld_version_message [run_host_cmd "$ld" "--version"]
114 set gcc_ld_version_message [run_host_cmd "$prog" "$gccflags -Wl,--version"]
115 if {[string first $ld_version_message $gcc_ld_version_message] < 0} {
116 perror "************************************************************************"
117 perror "Your compiler driver ignores -B when choosing ld."
118 perror "You will not be testing the new ld in many of the following tests."
119 set gcc_ld_version [run_host_cmd "$prog" "$gccflags --print-prog-name=ld"]
120 if {![string match "" $gcc_ld_version] && ![string match "ld" $gcc_ld_version]} {
122 perror "It seems you will be testing $gcc_ld_version instead."
124 perror "************************************************************************"
129 verbose -log "$prog $gccflags $command"
130 set status [remote_exec host [concat sh -c [list "$prog $gccflags $command 2>&1"]] "" "/dev/null" "ld.tmp"]
131 remote_upload host "ld.tmp"
132 set link_output [file_contents "ld.tmp"]
133 regsub "\n$" $link_output "" link_output
134 if { [lindex $status 0] != 0 && [string match "" $link_output] } then {
135 append link_output "child process exited abnormally"
137 remote_file build delete ld.tmp
138 remote_file host delete ld.tmp
140 if [string match "" $link_output] then {
144 verbose -log "$link_output"
145 return "$link_output"
148 proc run_host_cmd_yesno { prog command } {
150 global errcnt warncnt
152 set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
153 # Ignore error and warning.
156 if [string match "" $exec_output] then {
162 # Link an object using relocation.
164 proc default_ld_relocate { ld target objects } {
167 remote_file host delete $target
168 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"]
171 # Check to see if ld is being invoked with a non-endian output format
173 proc is_endian_output_format { object_flags } {
175 if {[string match "*-oformat binary*" $object_flags] || \
176 [string match "*-oformat ieee*" $object_flags] || \
177 [string match "*-oformat ihex*" $object_flags] || \
178 [string match "*-oformat netbsd-core*" $object_flags] || \
179 [string match "*-oformat srec*" $object_flags] || \
180 [string match "*-oformat tekhex*" $object_flags] || \
181 [string match "*-oformat trad-core*" $object_flags] } then {
188 # Link a program using ld
190 proc default_ld_link { ld target objects } {
195 if [is_endian_output_format $objects] then {
196 set flags [big_or_little_endian]
199 remote_file host delete $target
200 set exec_output [run_host_cmd "$ld" "$flags -o $target $objects"]
201 set exec_output [prune_warnings $exec_output]
203 # We don't care if we get a warning about a non-existent start
204 # symbol, since the default linker script might use ENTRY.
205 regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
207 return [string match "" $exec_output]
210 # Compile an object using cc.
212 proc default_ld_compile { cc source object } {
221 if {[llength $cc_prog] > 1} then {
222 set cc_prog [lindex $cc_prog 0]
224 if {![is_remote host] && [which $cc_prog] == 0} then {
225 perror "$cc_prog does not exist"
229 remote_file build delete "$object"
230 remote_file host delete "$object"
232 set flags "$gcc_B_opt -I$srcdir/$subdir"
234 # If we are compiling with gcc, we want to add gcc_B_opt to flags.
235 # However, if $prog already has -B options, which might be the
236 # case when running gcc out of a build directory, we want our -B
237 # options to come first.
239 set ccparm [string first " " $cc]
241 if { $ccparm > 0 } then {
242 set ccflags [string range $cc $ccparm end]
243 set ccexe [string range $cc 0 $ccparm]
247 set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
248 if {[string match "*++*" $ccexe]} {
249 append flags " $CXXFLAGS"
251 append flags " $CFLAGS"
254 if [board_info [target_info name] exists cflags] {
255 append flags " [board_info [target_info name] cflags]"
258 if [board_info [target_info name] exists multilib_flags] {
259 append flags " [board_info [target_info name] multilib_flags]"
262 set cmd "$cc $flags $ccflags -c $source -o $object"
265 set status [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
266 remote_upload host "ld.tmp"
267 set exec_output [file_contents "ld.tmp"]
268 remote_file build delete "ld.tmp"
269 remote_file host delete "ld.tmp"
270 set exec_output [prune_warnings $exec_output]
271 # Versions of gcc up to and including pre-release gcc-7, at least on
272 # some targets, generate .section directives with incorrect type.
273 # Ignore warnings from the assembler about this.
274 regsub -all "(^|\n)\[^\n\]*: ignoring incorrect section type \[^\n\]*" $exec_output "" exec_output
275 regsub -all "^\[^\n\]*: Assembler messages:\n" $exec_output "" exec_output
276 if [string match "" $exec_output] then {
277 if {![file exists $object]} then {
278 regexp ".*/(\[^/\]*)$" $source all dobj
279 regsub "\\.c" $dobj ".o" realobj
280 verbose "looking for $realobj"
281 if {[remote_file host exists $realobj]} then {
282 verbose -log "mv $realobj $object"
283 remote_upload "$realobj" "$object"
285 perror "$object not found after compilation"
291 verbose -log "$exec_output"
292 perror "$source: compilation failed"
299 proc default_ld_assemble { as in_flags source object } {
305 if ![info exists ASFLAGS] { set ASFLAGS "" }
307 set flags "[big_or_little_endian] -I$srcdir/$subdir"
308 set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"]
309 set exec_output [prune_warnings $exec_output]
310 if [string match "" $exec_output] then {
313 perror "$source: assembly failed"
318 # Run nm on a file, putting the result in the array nm_output.
320 proc default_ld_nm { nm nmflags object } {
325 if {[info exists nm_output]} {
329 if ![info exists NMFLAGS] { set NMFLAGS "" }
331 # Ensure consistent sorting of symbols
332 if {[info exists env(LC_ALL)]} {
333 set old_lc_all $env(LC_ALL)
337 verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
339 set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
340 if {[info exists old_lc_all]} {
341 set env(LC_ALL) $old_lc_all
345 remote_upload host "ld.stderr"
346 remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
347 set exec_output [prune_warnings [file_contents "ld.stderr"]]
348 remote_file host delete "ld.stderr"
349 remote_file build delete "ld.stderr"
350 if [string match "" $exec_output] then {
351 set file [open tmpdir/nm.out r]
352 while { [gets $file line] != -1 } {
354 if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
355 set name [string trimleft $name "_"]
356 verbose "Setting nm_output($name) to 0x$value" 2
357 set nm_output($name) 0x$value
363 verbose -log "$exec_output"
364 perror "$object: nm failed"
369 # Define various symbols needed when not linking against all
371 proc ld_link_defsyms {} {
373 set flags "--defsym __stack_chk_fail=0"
375 # ARM targets call __gccmain
376 if {[istarget arm*-*-*]} {
377 append flags " --defsym __gccmain=0"
380 # Windows targets need __main, some prefixed with underscore.
381 if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
382 append flags " --defsym __main=0 --defsym ___main=0"
385 # PowerPC EABI code calls __eabi.
386 if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
387 append flags " --defsym __eabi=0"
390 # mn10200 code calls __truncsipsi2_d0_d2.
391 if {[istarget mn10200*-*-*]} then {
392 append flags " --defsym __truncsipsi2_d0_d2=0"
395 # m6811/m6812 code has references to soft registers.
396 if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
397 append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
398 append flags " --defsym _.d3=0 --defsym _.d4=0"
399 append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
402 # Some OpenBSD targets have ProPolice and reference __guard and
403 # __stack_smash_handler.
404 if [istarget *-*-openbsd*] {
405 append flags " --defsym __guard=0"
406 append flags " --defsym __stack_smash_handler=0"
412 # Create an archive using ar
414 proc ar_simple_create { ar aropts target objects } {
415 remote_file host delete $target
417 set exec_output [run_host_cmd "$ar" "-rc $aropts $target $objects"]
418 set exec_output [prune_warnings $exec_output]
420 if [string match "" $exec_output] then {
421 send_log "$exec_output\n"
428 # List contains test-items with 3 items followed by 2 lists, one item and
431 # 1:ld/ar leading options, placed before object files
432 # 2:ld/ar trailing options, placed after object files
433 # 3:assembler options
434 # 4:filenames of assembler files
435 # 5:list of actions, options and expected outputs.
436 # 6:name of output file
437 # 7:compiler flags (optional)
439 # Actions: { command command-line-options file-containg-expected-output-regexps }
441 # objdump: Apply objdump options on result.
442 # nm: Apply nm options on result.
443 # readelf: Apply readelf options on result.
444 # ld: Don't apply anything on result. Compare output during linking with
445 # the file containing regexps (which is the second arg, not the third).
446 # Note that this *must* be the first action if it is to be used at all;
447 # in all other cases, any output from the linker during linking is
448 # treated as a sign of an error and FAILs the test.
450 # args is an optional list of target triplets to be xfailed.
452 proc run_ld_link_tests { ldtests args } {
468 if [check_relro_support] {
469 set ld_extra_opt "-z norelro"
472 foreach testitem $ldtests {
473 set testname [lindex $testitem 0]
475 if ![runtest_file_p $runtests $testname] then {
479 foreach target $args {
480 if [match_target $target] {
486 set ld_options [lindex $testitem 1]
487 set ld_after [lindex $testitem 2]
488 set as_options [lindex $testitem 3]
489 set src_files [lindex $testitem 4]
490 set actions [lindex $testitem 5]
491 set binfile tmpdir/[lindex $testitem 6]
492 set cflags [lindex $testitem 7]
499 # verbose -log "Testname is $testname"
500 # verbose -log "ld_options is $ld_options"
501 # verbose -log "ld_after is $ld_after"
502 # verbose -log "as_options is $as_options"
503 # verbose -log "src_files is $src_files"
504 # verbose -log "actions is $actions"
505 # verbose -log "binfile is $binfile"
507 # Assemble each file in the test.
508 foreach src_file $src_files {
509 set fileroot "[file rootname [file tail $src_file]]"
510 set objfile "tmpdir/$fileroot.o"
511 lappend objfiles $objfile
513 if { [file extension $src_file] == ".c" } {
514 set as_file "tmpdir/$fileroot.s"
515 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
520 set as_file "$srcdir/$subdir/$src_file"
522 if ![ld_assemble $as "$as_options $as_file" $objfile] {
528 # Catch assembler errors.
529 if { $is_unresolved } {
534 if { $binfile eq "tmpdir/" } {
536 } elseif { [regexp ".*\\.a$" $binfile] } {
537 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
540 } elseif { ![ld_link $ld $binfile "$ld_extra_opt -L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
542 set ld_output "$exec_output"
546 foreach actionlist $actions {
547 set action [lindex $actionlist 0]
548 set progopts [lindex $actionlist 1]
550 # There are actions where we run regexp_diff on the
551 # output, and there are other actions (presumably).
552 # Handling of the former look the same.
556 { set dump_prog $objdump }
558 { set dump_prog $nm }
560 { set dump_prog $READELF }
562 { set dump_prog "ld" }
565 perror "Unrecognized action $action"
571 if { $action == "ld" } {
572 set regexpfile $progopts
573 verbose "regexpfile is $srcdir/$subdir/$regexpfile"
574 set_file_contents "tmpdir/ld.messages" "$ld_output"
575 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
576 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then {
577 verbose "output is $ld_output" 2
582 } elseif { !$maybe_failed && $dump_prog != "" } {
583 set dumpfile [lindex $actionlist 2]
584 set binary $dump_prog
586 # Ensure consistent sorting of symbols
587 if {[info exists env(LC_ALL)]} {
588 set old_lc_all $env(LC_ALL)
591 set cmd "$binary $progopts $binfile"
592 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
594 remote_upload host "ld.stderr"
595 set comp_output [prune_warnings [file_contents "ld.stderr"]]
596 remote_file host delete "ld.stderr"
597 remote_file build delete "ld.stderr"
599 if {[info exists old_lc_all]} {
600 set env(LC_ALL) $old_lc_all
605 if ![string match "" $comp_output] then {
606 send_log "$comp_output\n"
611 remote_upload host "dump.out"
613 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
614 verbose "output is [file_contents "dump.out"]" 2
616 remote_file build delete "dump.out"
617 remote_file host delete "dump.out"
620 remote_file build delete "dump.out"
621 remote_file host delete "dump.out"
626 if { $is_unresolved } {
628 } elseif { $maybe_failed || $failed } {
636 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
637 # and 3 optional items:
639 # 1:ld leading options, placed before object files
640 # 2:assembler options
641 # 3:filenames of source files
642 # 4:name of output file
644 # 6:compiler flags (optional)
645 # 7:language (optional)
646 # 8:linker warning (optional)
647 # 9:ld trailing options, placed after object files (optional)
648 # args is an optional list of target triplets to be xfailed.
650 proc run_ld_link_exec_tests { ldtests args } {
663 global STATIC_LDFLAGS
665 # When using GCC as the linker driver, we need to specify board cflags when
666 # linking because cflags may contain linker options. For example when
667 # linker options are included in GCC spec files then we need the -specs
669 if [board_info [target_info name] exists cflags] {
670 set board_cflags " [board_info [target_info name] cflags]"
675 foreach testitem $ldtests {
676 set testname [lindex $testitem 0]
677 set ld_options [lindex $testitem 1]
678 set as_options [lindex $testitem 2]
679 set src_files [lindex $testitem 3]
680 set binfile tmpdir/[lindex $testitem 4]
681 set expfile [lindex $testitem 5]
682 set cflags [lindex $testitem 6]
683 set lang [lindex $testitem 7]
684 set warning [lindex $testitem 8]
685 set ld_after [lindex $testitem 9]
689 if { ![check_compiler_available] } {
690 unsupported $testname
694 foreach target $args {
695 if [match_target $target] {
701 # verbose -log "Testname is $testname"
702 # verbose -log "ld_options is $ld_options"
703 # verbose -log "as_options is $as_options"
704 # verbose -log "src_files is $src_files"
705 # verbose -log "binfile is $binfile"
707 # Assemble each file in the test.
708 foreach src_file $src_files {
709 set fileroot "[file rootname [file tail $src_file]]"
710 set objfile "tmpdir/$fileroot.o"
711 lappend objfiles $objfile
713 if { [ string match "c++" $lang ] } {
714 set cmd "$CXX -c $CXXFLAGS $cflags"
716 set cmd "$CC -c $CFLAGS $cflags"
718 if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
723 if { $failed != 0 } {
728 if { [ string match "asm" $lang ] } {
729 set link_proc ld_link
731 } elseif { [ string match "c++" $lang ] } {
732 set link_proc ld_link
735 set link_proc ld_link
739 if { $binfile eq "tmpdir/" } {
744 if { [string match "" $STATIC_LDFLAGS] \
745 && [regexp -- ".* \[-\]+static .*" " $board_cflags $ld_options $objfiles $ld_after "] } {
749 if ![$link_proc $link_cmd $binfile "$board_cflags -L$srcdir/$subdir $ld_options $objfiles $ld_after"] {
754 # Check if exec_output is expected.
755 if { $warning != "" } then {
756 verbose -log "returned with: <$exec_output>, expected: <$warning>"
757 if { [regexp $warning $exec_output] } then {
764 if { $failed == 0 && [isnative] } {
765 send_log "Running: $binfile > $binfile.out\n"
766 verbose "Running: $binfile > $binfile.out"
767 catch "exec $binfile > $binfile.out" exec_output
769 if ![string match "" $exec_output] then {
770 send_log "$exec_output\n"
771 verbose "$exec_output" 1
774 send_log [file_contents $binfile.out]
775 verbose [file_contents $binfile.out] 2
776 if [regexp_diff "$binfile.out" "$srcdir/$subdir/$expfile"] {
782 if { $failed != 0 } {
784 } elseif ![isnative] {
785 unsupported $testname
793 # List contains test-items with 3 items followed by 2 lists, one item and
798 # 3:filenames of source files
799 # 4:action and options.
800 # 5:name of output file
801 # 6:language (optional)
804 # objdump: Apply objdump options on result. Compare with regex (last arg).
805 # nm: Apply nm options on result. Compare with regex (last arg).
806 # readelf: Apply readelf options on result. Compare with regex (last arg).
807 # warning: Check linker output against regex (last arg).
808 # error: Like 'warning' but checking output in error case.
809 # warning_output: Check linker output against regex in a file (last arg).
810 # error_output: Like 'warning_output' but checking output in error case.
812 proc run_cc_link_tests { ldtests } {
826 global STATIC_LDFLAGS
828 if [board_info [target_info name] exists cflags] {
829 set board_cflags " [board_info [target_info name] cflags]"
834 foreach testitem $ldtests {
835 set testname [lindex $testitem 0]
836 set ldflags [lindex $testitem 1]
837 set cflags [lindex $testitem 2]
838 set src_files [lindex $testitem 3]
839 set actions [lindex $testitem 4]
840 set binfile tmpdir/[lindex $testitem 5]
841 set lang [lindex $testitem 6]
845 set check_ld(terminal) 0
846 set check_ld(source) ""
848 if { ![check_compiler_available] } {
849 unsupported $testname
853 #verbose -log "testname is $testname"
854 #verbose -log "ldflags is $ldflags"
855 #verbose -log "cflags is $cflags"
856 #verbose -log "src_files is $src_files"
857 #verbose -log "actions is $actions"
858 #verbose -log "binfile is $binfile"
859 #verbose -log "lang is $lang"
861 foreach actionlist $actions {
862 set action [lindex $actionlist 0]
863 set progopts [lindex $actionlist 1]
865 # Find actions related to error/warning processing.
869 set check_ld(source) "regexp"
870 set check_ld(regexp) $progopts
871 set check_ld(terminal) 1
875 set check_ld(source) "regexp"
876 set check_ld(regexp) $progopts
880 set check_ld(source) "file"
881 set check_ld(file) $progopts
882 set check_ld(terminal) 1
886 set check_ld(source) "file"
887 set check_ld(file) $progopts
892 # Compile each file in the test.
893 foreach src_file $src_files {
894 set fileroot "[file rootname [file tail $src_file]]"
895 set objfile "tmpdir/$fileroot.o"
896 lappend objfiles $objfile
898 if { [ string match "c++" $lang ] } {
899 set cmd "$CXX -c $CXXFLAGS $cflags"
901 set cmd "$CC -c $CFLAGS $cflags"
903 if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
908 if { $failed != 0 } {
913 # Clear error and warning counts.
916 if { [ string match "c++" $lang ] } {
922 if { $binfile eq "tmpdir/" } {
925 } elseif { [regexp ".*\\.a$" $binfile] } {
926 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
930 if { [string match "" $STATIC_LDFLAGS] \
931 && [regexp -- ".* \[-\]+static .*" " $board_cflags $ldflags $objfiles "] } {
935 ld_link $cc_cmd $binfile "$board_cflags -L$srcdir/$subdir $ldflags $objfiles"
936 set ld_output "$exec_output"
938 if { $check_ld(source) == "regexp" } then {
939 # Match output against regexp argument.
940 verbose -log "returned with: <$ld_output>, expected: <$check_ld(regexp)>"
941 if { ![regexp $check_ld(regexp) $ld_output] } then {
944 } elseif { $check_ld(source) == "file" } then {
945 # Match output against patterns in a file.
946 set_file_contents "tmpdir/ld.messages" "$ld_output"
947 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
948 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$check_ld(file)"] } then {
949 verbose "output is $ld_output" 2
954 if { $check_ld(source) != "" } then {
955 if { $ld_output == "" } then {
956 verbose -log "Linker was expected to give error or warning"
960 if { $ld_output != "" } then {
961 verbose -log "Unexpected linker warning or error"
967 if { $failed == 0 } {
968 foreach actionlist $actions {
969 set action [lindex $actionlist 0]
970 set progopts [lindex $actionlist 1]
972 # There are actions where we run regexp_diff on the
973 # output, and there are other actions (presumably).
974 # Handling of the former look the same.
978 { set dump_prog $objdump }
980 { set dump_prog $nm }
982 { set dump_prog $READELF }
989 perror "Unrecognized action $action"
995 if { $dump_prog != "" } {
996 set dumpfile [lindex $actionlist 2]
997 set binary $dump_prog
999 # Ensure consistent sorting of symbols
1000 if {[info exists env(LC_ALL)]} {
1001 set old_lc_all $env(LC_ALL)
1004 set cmd "$binary $progopts $binfile > dump.out"
1006 catch "exec $cmd" comp_output
1007 if {[info exists old_lc_all]} {
1008 set env(LC_ALL) $old_lc_all
1012 set comp_output [prune_warnings $comp_output]
1014 if ![string match "" $comp_output] then {
1015 send_log "$comp_output\n"
1020 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1021 verbose "output is [file_contents "dump.out"]" 2
1031 } elseif { $is_unresolved } {
1032 unresolved $testname
1039 # Returns true if --gc-sections is supported on the target.
1041 proc check_gc_sections_available { } {
1042 global gc_sections_available_saved
1045 if {![info exists gc_sections_available_saved]} {
1046 # Some targets don't support gc-sections despite whatever's
1047 # advertised by ld's options.
1048 if { [istarget alpha-*-*]
1049 || [istarget bpf-*-*]
1050 || [istarget d30v-*-*]
1051 || [istarget dlx-*-*]
1052 || [istarget hppa*64-*-*]
1053 || [istarget ia64-*-*]
1054 || [istarget mep-*-*]
1055 || [istarget mn10200-*-*]
1056 || [istarget pj*-*-*]
1057 || [istarget pru*-*-*]
1058 || [istarget s12z-*-*]
1059 || [istarget xgate-*-*]
1060 || [istarget z80-*-*] } {
1061 set gc_sections_available_saved 0
1065 # elf2flt uses -q (--emit-relocs), which is incompatible with
1067 if { [board_info target exists ldflags]
1068 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1069 set gc_sections_available_saved 0
1073 # Check if the ld used by gcc supports --gc-sections.
1074 # FIXME: this test is useless since ld --help always says
1075 # --gc-sections is available
1076 set ld_output [remote_exec host $ld "--help"]
1077 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1078 set gc_sections_available_saved 1
1080 set gc_sections_available_saved 0
1083 return $gc_sections_available_saved
1086 # Return true if target uses genelf.em.
1087 proc uses_genelf { } {
1088 if { [istarget "d30v-*-*"]
1089 || [istarget "dlx-*-*"]
1090 || [istarget "fr30-*-*"]
1091 || ([istarget "frv-*-*"] && ![istarget "frv-*-linux*"])
1092 || [istarget "ft32-*-*"]
1093 || [istarget "iq2000-*-*"]
1094 || [istarget "mn10200-*-*"]
1095 || [istarget "msp430-*-*"]
1096 || [istarget "mt-*-*"]
1097 || [istarget "pj*-*-*"]
1098 || [istarget "s12z-*-*"]
1099 || [istarget "xgate-*-*"] } {
1105 proc is_underscore_target { } {
1106 global is_underscore_target_saved
1107 global target_triplet
1110 if { ![info exists is_underscore_target_saved] } {
1111 set cmd "targ=$target_triplet . $srcdir/../../bfd/config.bfd &&"
1112 append cmd { echo "$targ_underscore"}
1114 set status [catch {exec sh -c $cmd} result]
1115 if { $status == 0 && [string match "yes" $result] } {
1116 set is_underscore_target_saved 1
1118 set is_underscore_target_saved 0
1121 return $is_underscore_target_saved
1124 # Returns true if the target ld supports the plugin API.
1125 proc check_plugin_api_available { } {
1126 global plugin_api_available_saved
1128 if {![info exists plugin_api_available_saved]} {
1129 # Check if the ld used by gcc supports --plugin.
1130 set ld_output [remote_exec host $ld "--help"]
1131 if { [regexp -- "-plugin PLUGIN \[^\n\r\]*" $ld_output line]
1132 && ![regexp "ignored" $line] } {
1133 set plugin_api_available_saved 1
1135 set plugin_api_available_saved 0
1138 return $plugin_api_available_saved
1141 # Sets ld_sysroot to the current sysroot (empty if not supported) and
1142 # returns true if the target ld supports sysroot.
1143 proc check_sysroot_available { } {
1144 global ld_sysroot_available_saved ld ld_sysroot
1145 if {![info exists ld_sysroot_available_saved]} {
1146 # Check if ld supports --sysroot *other* than empty.
1147 set ld_sysroot [string trimright [lindex [remote_exec host $ld "--print-sysroot"] 1]]
1148 if { $ld_sysroot == "" } {
1149 set ld_sysroot_available_saved 0
1151 set ld_sysroot_available_saved 1
1154 return $ld_sysroot_available_saved
1157 # Return true if we can build a program with the compiler.
1158 # On some targets, CC might be defined, but libraries and startup
1159 # code might be missing or require special options that the ld test
1160 # harness doesn't know about.
1162 proc check_compiler_available { } {
1163 global compiler_available_saved
1166 if {![info exists compiler_available_saved]} {
1167 if { [which $CC] == 0 } {
1168 set compiler_available_saved 0
1173 if [board_info [target_info name] exists cflags] {
1174 append flags " [board_info [target_info name] cflags]"
1176 if [board_info [target_info name] exists ldflags] {
1177 append flags " [board_info [target_info name] ldflags]"
1180 set basename "tmpdir/compiler[pid]"
1181 set src ${basename}.c
1182 set output ${basename}.out
1183 set f [open $src "w"]
1184 puts $f "int main (void)"
1186 puts $f " return 0; "
1189 if [is_remote host] {
1190 set src [remote_download host $src]
1192 set compiler_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
1193 remote_file host delete $src
1194 remote_file host delete $output
1197 return $compiler_available_saved
1200 # Returns 1 if plugin is enabled in gcc. Returns 0 otherwise.
1201 proc check_gcc_plugin_enabled { } {
1204 if {![info exists CC]} {
1210 set state [remote_exec host $CC -v]
1211 if { [lindex $state 0] != 0 } {
1214 for { set i 1 } { $i < [llength $state] } { incr i } {
1215 set v [lindex $state $i]
1216 if { [ string match "*--disable-plugin*" $v ] } {
1217 verbose "plugin is disabled by $v"
1225 # Returns true if the target compiler supports LTO
1226 proc check_lto_available { } {
1227 global lto_available_saved
1230 if {![info exists lto_available_saved]} {
1231 if { ![check_gcc_plugin_enabled] } {
1232 set lto_available_saved 0
1235 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1236 # -ffat-lto-objects, we always run LTO tests on Linux with
1238 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1239 set lto_available_saved 1
1242 # Check if gcc supports -flto -fuse-linker-plugin
1244 if [board_info [target_info name] exists cflags] {
1245 append flags " [board_info [target_info name] cflags]"
1247 if [board_info [target_info name] exists ldflags] {
1248 append flags " [board_info [target_info name] ldflags]"
1251 set basename "tmpdir/lto[pid]"
1252 set src ${basename}.c
1253 set output ${basename}.out
1254 set f [open $src "w"]
1255 puts $f "int main() { return 0; }"
1257 if [is_remote host] {
1258 set src [remote_download host $src]
1260 set lto_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -fuse-linker-plugin $src -o $output"]
1261 remote_file host delete $src
1262 remote_file host delete $output
1265 return $lto_available_saved
1268 # Returns true if the target compiler supports LTO -ffat-lto-objects
1269 proc check_lto_fat_available { } {
1270 global lto_fat_available_saved
1273 if {![info exists lto_fat_available_saved]} {
1274 if { ![check_gcc_plugin_enabled] } {
1275 set lto_fat_available_saved 0
1278 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1279 # -ffat-lto-objects, we always run LTO tests on Linux with
1281 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1282 set lto_fat_available_saved 1
1285 # Check if gcc supports -flto -fuse-linker-plugin
1287 if [board_info [target_info name] exists cflags] {
1288 append flags " [board_info [target_info name] cflags]"
1290 if [board_info [target_info name] exists ldflags] {
1291 append flags " [board_info [target_info name] ldflags]"
1294 set basename "tmpdir/lto[pid]"
1295 set src ${basename}.c
1296 set output ${basename}.out
1297 set f [open $src "w"]
1298 puts $f "int main() { return 0; }"
1300 if [is_remote host] {
1301 set src [remote_download host $src]
1303 set lto_fat_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
1304 remote_file host delete $src
1305 remote_file host delete $output
1308 return $lto_fat_available_saved
1311 # Returns true if the target compiler supports LTO and -shared
1312 proc check_lto_shared_available { } {
1313 global lto_shared_available_saved
1316 if {![info exists lto_shared_available_saved]} {
1317 if { ![check_gcc_plugin_enabled] } {
1318 set lto_shared_available_saved 0
1321 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1322 # -ffat-lto-objects, we always run LTO tests on Linux with
1324 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1325 set lto_shared_available_saved 1
1328 # Check if gcc supports -flto -fuse-linker-plugin -shared
1330 if [board_info [target_info name] exists cflags] {
1331 append flags " [board_info [target_info name] cflags]"
1333 if [board_info [target_info name] exists ldflags] {
1334 append flags " [board_info [target_info name] ldflags]"
1337 set basename "tmpdir/lto_shared[pid]"
1338 set src ${basename}.c
1339 set output ${basename}.so
1340 set f [open $src "w"]
1343 if [is_remote host] {
1344 set src [remote_download host $src]
1346 set lto_shared_available_saved [run_host_cmd_yesno "$CC" "$flags -shared -fPIC -flto -fuse-linker-plugin $src -o $output"]
1347 remote_file host delete $src
1348 remote_file host delete $output
1351 return $lto_shared_available_saved
1354 # Check if the assembler supports CFI statements.
1356 proc check_as_cfi { } {
1357 global check_as_cfi_result
1359 if [info exists check_as_cfi_result] {
1360 return $check_as_cfi_result
1362 set as_file "tmpdir/check_as_cfi.s"
1363 set as_fh [open $as_file w 0666]
1364 puts $as_fh "# Generated file. DO NOT EDIT"
1365 puts $as_fh "\t.cfi_startproc"
1366 puts $as_fh "\t.cfi_endproc"
1368 remote_download host $as_file
1369 verbose -log "Checking CFI support:"
1370 rename "perror" "check_as_cfi_perror"
1371 proc perror { args } { }
1372 set success [ld_assemble $as $as_file "/dev/null"]
1374 rename "check_as_cfi_perror" "perror"
1375 #remote_file host delete $as_file
1376 set check_as_cfi_result $success
1380 # Returns true if IFUNC works.
1382 proc check_ifunc_available { } {
1383 global ifunc_available_saved
1386 if {![info exists ifunc_available_saved]} {
1387 if { ![check_compiler_available] } {
1388 set ifunc_available_saved 0
1391 # Check if gcc supports -flto -fuse-linker-plugin
1393 if [board_info [target_info name] exists cflags] {
1394 append flags " [board_info [target_info name] cflags]"
1396 if [board_info [target_info name] exists ldflags] {
1397 append flags " [board_info [target_info name] ldflags]"
1400 set basename "tmpdir/ifunc[pid]"
1401 set src ${basename}.c
1402 set output ${basename}.out
1403 set f [open $src "w"]
1404 puts $f "extern int library_func2 (void);"
1405 puts $f "int main (void)"
1407 puts $f " if (library_func2 () != 2) __builtin_abort ();"
1408 puts $f " return 0; "
1410 puts $f "static int library_func1 (void) {return 2; }"
1411 puts $f "void *foo (void) __asm__ (\"library_func2\");"
1412 puts $f "void *foo (void) { return library_func1; }"
1413 puts $f "__asm__(\".type library_func2, %gnu_indirect_function\");"
1415 if [is_remote host] {
1416 set src [remote_download host $src]
1418 set ifunc_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
1419 if { [isnative] && $ifunc_available_saved == 1 } {
1420 set ifunc_available_saved [run_host_cmd_yesno "$output" ""]
1422 remote_file host delete $src
1423 remote_file host delete $output
1426 return $ifunc_available_saved
1429 # Returns true if ifunc attribute works.
1431 proc check_ifunc_attribute_available { } {
1432 global ifunc_attribute_available_saved
1435 if {![info exists ifunc_attribute_available_saved]} {
1436 if { ![check_compiler_available] } {
1437 set ifunc_attribute_available_saved 0
1440 # Check if gcc supports -flto -fuse-linker-plugin
1442 if [board_info [target_info name] exists cflags] {
1443 append flags " [board_info [target_info name] cflags]"
1445 if [board_info [target_info name] exists ldflags] {
1446 append flags " [board_info [target_info name] ldflags]"
1449 set basename "tmpdir/ifunc[pid]"
1450 set src ${basename}.c
1451 set output ${basename}.out
1452 set f [open $src "w"]
1453 puts $f "extern int library_func2 (void) __attribute__ ((ifunc (\"foo\")));"
1454 puts $f "int main (void)"
1456 puts $f " if (library_func2 () != 2) __builtin_abort ();"
1457 puts $f " return 0; "
1459 puts $f "static int library_func1 (void) {return 2; }"
1460 puts $f "void *foo (void) { return library_func1; }"
1462 if [is_remote host] {
1463 set src [remote_download host $src]
1465 set ifunc_attribute_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
1466 if { [isnative] && $ifunc_attribute_available_saved == 1 } {
1467 set ifunc_attribute_available_saved [run_host_cmd_yesno "$output" ""]
1469 remote_file host delete $src
1470 remote_file host delete $output
1473 return $ifunc_attribute_available_saved
1476 # Return true if libdl is supported.
1478 proc check_libdl_available { } {
1479 global libdl_available_saved
1482 if {![info exists libdl_available_saved]} {
1483 if { ![check_compiler_available] } {
1484 set libdl_available_saved 0
1488 set basename "tmpdir/dl_avail_test[pid]"
1489 set src ${basename}.c
1490 set output ${basename}.out
1491 set f [open $src "w"]
1493 puts $f "#include <dlfcn.h>"
1494 puts $f "int main (void)"
1496 puts $f " dlopen (\"dummy.so\", RTLD_NOW);"
1497 puts $f " return 0; "
1500 if [is_remote host] {
1501 set src [remote_download host $src]
1503 set libdl_available_saved [run_host_cmd_yesno "$CC" "$src -o $output -ldl"]
1504 remote_file host delete $src
1505 remote_file host delete $output
1508 return $libdl_available_saved
1511 # Returns true if GNU2 TLS works.
1513 proc check_gnu2_tls_available { } {
1514 global gnu2_tls_available_saved
1518 if {![info exists gnu2_tls_available_saved]} {
1519 if { ![check_compiler_available] || "$GNU2_CFLAGS" == "" } {
1520 set gnu2_tls_available_saved 0
1523 # Check if GNU2 TLS works.
1524 set flags "$GNU2_CFLAGS"
1525 if [board_info [target_info name] exists cflags] {
1526 append flags " [board_info [target_info name] cflags]"
1528 if [board_info [target_info name] exists ldflags] {
1529 append flags " [board_info [target_info name] ldflags]"
1532 set basename "tmpdir/gnu2_tls[pid]"
1533 set src1 ${basename}1.c
1534 set output1 ${basename}.so
1535 set f [open $src1 "w"]
1536 puts $f "extern __thread int zzz;"
1537 puts $f "int foo (void)"
1539 puts $f " return zzz;"
1542 if [is_remote host] {
1543 set src1 [remote_download host $src1]
1545 set src2 ${basename}2.c
1546 set output2 ${basename}.exe
1547 set f [open $src2 "w"]
1548 puts $f "__thread int zzz = 20;"
1549 puts $f "extern int foo (void);"
1550 puts $f "int main (void)"
1552 puts $f " if (foo () != 20) __builtin_abort ();"
1553 puts $f " return 0; "
1556 if [is_remote host] {
1557 set src2 [remote_download host $src2]
1559 set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "-fPIC -shared $flags $src1 -o $output1"]
1560 if { $gnu2_tls_available_saved == 1 } {
1561 set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "$flags $src2 $output1 -o $output2"]
1562 if { $gnu2_tls_available_saved == 1 } {
1563 set gnu2_tls_available_saved [run_host_cmd_yesno "$output2" ""]
1566 remote_file host delete $src1
1567 remote_file host delete $output1
1568 remote_file host delete $src2
1569 remote_file host delete $output2
1570 file delete $src1 $src2
1572 return $gnu2_tls_available_saved