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 "$exec_output"
298 proc default_ld_assemble { as in_flags source object } {
304 if ![info exists ASFLAGS] { set ASFLAGS "" }
306 set flags "[big_or_little_endian] -I$srcdir/$subdir"
307 set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"]
308 set exec_output [prune_warnings $exec_output]
309 if [string match "" $exec_output] then {
316 # Run nm on a file, putting the result in the array nm_output.
318 proc default_ld_nm { nm nmflags object } {
323 if {[info exists nm_output]} {
327 if ![info exists NMFLAGS] { set NMFLAGS "" }
329 # Ensure consistent sorting of symbols
330 if {[info exists env(LC_ALL)]} {
331 set old_lc_all $env(LC_ALL)
335 verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
337 set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
338 if {[info exists old_lc_all]} {
339 set env(LC_ALL) $old_lc_all
343 remote_upload host "ld.stderr"
344 remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
345 set exec_output [prune_warnings [file_contents "ld.stderr"]]
346 remote_file host delete "ld.stderr"
347 remote_file build delete "ld.stderr"
348 if [string match "" $exec_output] then {
349 set file [open tmpdir/nm.out r]
350 while { [gets $file line] != -1 } {
352 if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
353 set name [string trimleft $name "_"]
354 verbose "Setting nm_output($name) to 0x$value" 2
355 set nm_output($name) 0x$value
361 verbose -log "$exec_output"
366 # Define various symbols needed when not linking against all
368 proc ld_link_defsyms {} {
370 set flags "--defsym __stack_chk_fail=0"
372 # ARM targets call __gccmain
373 if {[istarget arm*-*-*]} {
374 append flags " --defsym __gccmain=0"
377 # Windows targets need __main, some prefixed with underscore.
378 if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
379 append flags " --defsym __main=0 --defsym ___main=0"
382 # PowerPC EABI code calls __eabi.
383 if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
384 append flags " --defsym __eabi=0"
387 # mn10200 code calls __truncsipsi2_d0_d2.
388 if {[istarget mn10200*-*-*]} then {
389 append flags " --defsym __truncsipsi2_d0_d2=0"
392 # m6811/m6812 code has references to soft registers.
393 if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
394 append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
395 append flags " --defsym _.d3=0 --defsym _.d4=0"
396 append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
399 # Some OpenBSD targets have ProPolice and reference __guard and
400 # __stack_smash_handler.
401 if [istarget *-*-openbsd*] {
402 append flags " --defsym __guard=0"
403 append flags " --defsym __stack_smash_handler=0"
409 # Create an archive using ar
411 proc ar_simple_create { ar aropts target objects } {
412 remote_file host delete $target
414 set exec_output [run_host_cmd "$ar" "$aropts rc $target $objects"]
415 set exec_output [prune_warnings $exec_output]
417 if [string match "" $exec_output] then {
418 send_log "$exec_output\n"
425 # List contains test-items with 3 items followed by 2 lists, one item and
428 # 1:ld/ar leading options, placed before object files
429 # 2:ld/ar trailing options, placed after object files
430 # 3:assembler options
431 # 4:filenames of assembler files
432 # 5:list of actions, options and expected outputs.
433 # 6:name of output file
434 # 7:compiler flags (optional)
436 # Actions: { command command-line-options file-containg-expected-output-regexps }
438 # objdump: Apply objdump options on result.
439 # nm: Apply nm options on result.
440 # readelf: Apply readelf options on result.
441 # ld: Don't apply anything on result. Compare output during linking with
442 # the file containing regexps (which is the second arg, not the third).
443 # Note that this *must* be the first action if it is to be used at all;
444 # in all other cases, any output from the linker during linking is
445 # treated as a sign of an error and FAILs the test.
447 # args is an optional list of target triplets to be xfailed.
449 proc run_ld_link_tests { ldtests args } {
465 if [check_relro_support] {
466 set ld_extra_opt "-z norelro"
469 foreach testitem $ldtests {
470 set testname [lindex $testitem 0]
472 if ![runtest_file_p $runtests $testname] then {
476 foreach target $args {
477 if [match_target $target] {
483 set ld_options [lindex $testitem 1]
484 set ld_after [lindex $testitem 2]
485 set as_options [lindex $testitem 3]
486 set src_files [lindex $testitem 4]
487 set actions [lindex $testitem 5]
488 set binfile tmpdir/[lindex $testitem 6]
489 set cflags [lindex $testitem 7]
496 # verbose -log "Testname is $testname"
497 # verbose -log "ld_options is $ld_options"
498 # verbose -log "ld_after is $ld_after"
499 # verbose -log "as_options is $as_options"
500 # verbose -log "src_files is $src_files"
501 # verbose -log "actions is $actions"
502 # verbose -log "binfile is $binfile"
504 # Assemble each file in the test.
505 foreach src_file $src_files {
506 set fileroot "[file rootname [file tail $src_file]]"
507 set objfile "tmpdir/$fileroot.o"
508 lappend objfiles $objfile
510 if { [file extension $src_file] == ".c" } {
511 set as_file "tmpdir/$fileroot.s"
512 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
517 set as_file "$srcdir/$subdir/$src_file"
519 if ![ld_assemble $as "$as_options $as_file" $objfile] {
525 # Catch assembler errors.
530 # Catch compiler errors.
531 if { $is_unresolved } {
536 if { $binfile eq "tmpdir/" } {
538 } elseif { [regexp ".*\\.a$" $binfile] } {
539 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
542 } elseif { ![ld_link $ld $binfile "$ld_extra_opt -L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
544 set ld_output "$exec_output"
548 foreach actionlist $actions {
549 set action [lindex $actionlist 0]
550 set progopts [lindex $actionlist 1]
552 # There are actions where we run regexp_diff on the
553 # output, and there are other actions (presumably).
554 # Handling of the former look the same.
558 { set dump_prog $objdump }
560 { set dump_prog $nm }
562 { set dump_prog $READELF }
564 { set dump_prog "ld" }
567 perror "Unrecognized action $action"
573 if { $action == "ld" } {
574 set regexpfile $progopts
575 verbose "regexpfile is $srcdir/$subdir/$regexpfile"
576 set_file_contents "tmpdir/ld.messages" "$ld_output"
577 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
578 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then {
579 verbose "output is $ld_output" 2
584 } elseif { !$maybe_failed && $dump_prog != "" } {
585 set dumpfile [lindex $actionlist 2]
586 set binary $dump_prog
588 # Ensure consistent sorting of symbols
589 if {[info exists env(LC_ALL)]} {
590 set old_lc_all $env(LC_ALL)
593 set cmd "$binary $progopts $binfile"
594 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
596 remote_upload host "ld.stderr"
597 set comp_output [prune_warnings [file_contents "ld.stderr"]]
598 remote_file host delete "ld.stderr"
599 remote_file build delete "ld.stderr"
601 if {[info exists old_lc_all]} {
602 set env(LC_ALL) $old_lc_all
607 if ![string match "" $comp_output] then {
608 send_log "$comp_output\n"
613 remote_upload host "dump.out"
615 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
616 verbose "output is [file_contents "dump.out"]" 2
618 remote_file build delete "dump.out"
619 remote_file host delete "dump.out"
622 remote_file build delete "dump.out"
623 remote_file host delete "dump.out"
628 if { $is_unresolved } {
630 } elseif { $maybe_failed || $failed } {
638 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
639 # and 3 optional items:
641 # 1:ld leading options, placed before object files
642 # 2:assembler options
643 # 3:filenames of source files
644 # 4:name of output file
646 # 6:compiler flags (optional)
647 # 7:language (optional)
648 # 8:linker warning (optional)
649 # 9:ld trailing options, placed after object files (optional)
650 # args is an optional list of target triplets to be xfailed.
652 proc run_ld_link_exec_tests { ldtests args } {
665 global STATIC_LDFLAGS
667 # When using GCC as the linker driver, we need to specify board cflags when
668 # linking because cflags may contain linker options. For example when
669 # linker options are included in GCC spec files then we need the -specs
671 if [board_info [target_info name] exists cflags] {
672 set board_cflags " [board_info [target_info name] cflags]"
677 foreach testitem $ldtests {
678 set testname [lindex $testitem 0]
679 set ld_options [lindex $testitem 1]
680 set as_options [lindex $testitem 2]
681 set src_files [lindex $testitem 3]
682 set binfile tmpdir/[lindex $testitem 4]
683 set expfile [lindex $testitem 5]
684 set cflags [lindex $testitem 6]
685 set lang [lindex $testitem 7]
686 set warning [lindex $testitem 8]
687 set ld_after [lindex $testitem 9]
691 if { ![check_compiler_available] } {
692 unsupported $testname
696 foreach target $args {
697 if [match_target $target] {
703 # verbose -log "Testname is $testname"
704 # verbose -log "ld_options is $ld_options"
705 # verbose -log "as_options is $as_options"
706 # verbose -log "src_files is $src_files"
707 # verbose -log "binfile is $binfile"
709 # Assemble each file in the test.
710 foreach src_file $src_files {
711 set fileroot "[file rootname [file tail $src_file]]"
712 set objfile "tmpdir/$fileroot.o"
713 lappend objfiles $objfile
715 if { [ string match "c++" $lang ] } {
716 set cmd "$CXX -c $CXXFLAGS $cflags"
718 set cmd "$CC -c $CFLAGS $cflags"
720 if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
725 if { $failed != 0 } {
730 if { [ string match "asm" $lang ] } {
731 set link_proc ld_link
733 } elseif { [ string match "c++" $lang ] } {
734 set link_proc ld_link
737 set link_proc ld_link
741 if { $binfile eq "tmpdir/" } {
746 if { [string match "" $STATIC_LDFLAGS] \
747 && [regexp -- ".* \[-\]+static .*" " $board_cflags $ld_options $objfiles $ld_after "] } {
751 if ![$link_proc $link_cmd $binfile "$board_cflags -L$srcdir/$subdir $ld_options $objfiles $ld_after"] {
756 # Check if exec_output is expected.
757 if { $warning != "" } then {
758 verbose -log "returned with: <$exec_output>, expected: <$warning>"
759 if { [regexp $warning $exec_output] } then {
766 if { $failed == 0 && [isnative] } {
767 send_log "Running: $binfile > $binfile.out\n"
768 verbose "Running: $binfile > $binfile.out"
769 catch "exec $binfile > $binfile.out" exec_output
771 if ![string match "" $exec_output] then {
772 send_log "$exec_output\n"
773 verbose "$exec_output" 1
776 send_log [file_contents $binfile.out]
777 verbose [file_contents $binfile.out] 2
778 if [regexp_diff "$binfile.out" "$srcdir/$subdir/$expfile"] {
784 if { $failed != 0 } {
786 } elseif ![isnative] {
787 unsupported $testname
795 # List contains test-items with 3 items followed by 2 lists, one item and
800 # 3:filenames of source files
801 # 4:action and options.
802 # 5:name of output file
803 # 6:language (optional)
806 # objdump: Apply objdump options on result. Compare with regex (last arg).
807 # nm: Apply nm options on result. Compare with regex (last arg).
808 # readelf: Apply readelf options on result. Compare with regex (last arg).
809 # warning: Check linker output against regex (last arg).
810 # error: Like 'warning' but checking output in error case.
811 # warning_output: Check linker output against regex in a file (last arg).
812 # error_output: Like 'warning_output' but checking output in error case.
814 proc run_cc_link_tests { ldtests } {
828 global STATIC_LDFLAGS
830 if [board_info [target_info name] exists cflags] {
831 set board_cflags " [board_info [target_info name] cflags]"
836 foreach testitem $ldtests {
837 set testname [lindex $testitem 0]
838 set ldflags [lindex $testitem 1]
839 set cflags [lindex $testitem 2]
840 set src_files [lindex $testitem 3]
841 set actions [lindex $testitem 4]
842 set binfile tmpdir/[lindex $testitem 5]
843 set lang [lindex $testitem 6]
847 set check_ld(terminal) 0
848 set check_ld(source) ""
850 if { ![check_compiler_available] } {
851 unsupported $testname
855 #verbose -log "testname is $testname"
856 #verbose -log "ldflags is $ldflags"
857 #verbose -log "cflags is $cflags"
858 #verbose -log "src_files is $src_files"
859 #verbose -log "actions is $actions"
860 #verbose -log "binfile is $binfile"
861 #verbose -log "lang is $lang"
863 foreach actionlist $actions {
864 set action [lindex $actionlist 0]
865 set progopts [lindex $actionlist 1]
867 # Find actions related to error/warning processing.
871 set check_ld(source) "regexp"
872 set check_ld(regexp) $progopts
873 set check_ld(terminal) 1
877 set check_ld(source) "regexp"
878 set check_ld(regexp) $progopts
882 set check_ld(source) "file"
883 set check_ld(file) $progopts
884 set check_ld(terminal) 1
888 set check_ld(source) "file"
889 set check_ld(file) $progopts
894 # Compile each file in the test.
895 foreach src_file $src_files {
896 set fileroot "[file rootname [file tail $src_file]]"
897 set objfile "tmpdir/$fileroot.o"
898 lappend objfiles $objfile
900 if { [ string match "c++" $lang ] } {
901 set cmd "$CXX -c $CXXFLAGS $cflags"
903 set cmd "$CC -c $CFLAGS $cflags"
905 if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
910 if { $failed != 0 } {
915 # Clear error and warning counts.
918 if { [ string match "c++" $lang ] } {
924 if { $binfile eq "tmpdir/" } {
927 } elseif { [regexp ".*\\.a$" $binfile] } {
928 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
932 if { [string match "" $STATIC_LDFLAGS] \
933 && [regexp -- ".* \[-\]+static .*" " $board_cflags $ldflags $objfiles "] } {
937 ld_link $cc_cmd $binfile "$board_cflags -L$srcdir/$subdir $ldflags $objfiles"
938 set ld_output "$exec_output"
940 if { $check_ld(source) == "regexp" } then {
941 # Match output against regexp argument.
942 verbose -log "returned with: <$ld_output>, expected: <$check_ld(regexp)>"
943 if { ![regexp $check_ld(regexp) $ld_output] } then {
946 } elseif { $check_ld(source) == "file" } then {
947 # Match output against patterns in a file.
948 set_file_contents "tmpdir/ld.messages" "$ld_output"
949 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
950 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$check_ld(file)"] } then {
951 verbose "output is $ld_output" 2
956 if { $check_ld(source) != "" } then {
957 if { $ld_output == "" } then {
958 verbose -log "Linker was expected to give error or warning"
962 if { $ld_output != "" } then {
963 verbose -log "Unexpected linker warning or error"
969 if { $failed == 0 } {
970 foreach actionlist $actions {
971 set action [lindex $actionlist 0]
972 set progopts [lindex $actionlist 1]
974 # There are actions where we run regexp_diff on the
975 # output, and there are other actions (presumably).
976 # Handling of the former look the same.
980 { set dump_prog $objdump }
982 { set dump_prog $nm }
984 { set dump_prog $READELF }
991 perror "Unrecognized action $action"
997 if { $dump_prog != "" } {
998 set dumpfile [lindex $actionlist 2]
999 set binary $dump_prog
1001 # Ensure consistent sorting of symbols
1002 if {[info exists env(LC_ALL)]} {
1003 set old_lc_all $env(LC_ALL)
1006 set cmd "$binary $progopts $binfile > dump.out"
1008 catch "exec $cmd" comp_output
1009 if {[info exists old_lc_all]} {
1010 set env(LC_ALL) $old_lc_all
1014 set comp_output [prune_warnings $comp_output]
1016 if ![string match "" $comp_output] then {
1017 send_log "$comp_output\n"
1022 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1023 verbose "output is [file_contents "dump.out"]" 2
1033 } elseif { $is_unresolved } {
1034 unresolved $testname
1041 # Returns true if --gc-sections is supported on the target.
1043 proc check_gc_sections_available { } {
1044 global gc_sections_available_saved
1047 if {![info exists gc_sections_available_saved]} {
1048 # Some targets don't support gc-sections despite whatever's
1049 # advertised by ld's options.
1050 if { [istarget alpha-*-*]
1051 || [istarget bpf-*-*]
1052 || [istarget d30v-*-*]
1053 || [istarget dlx-*-*]
1054 || [istarget hppa*64-*-*]
1055 || [istarget ia64-*-*]
1056 || [istarget mep-*-*]
1057 || [istarget mn10200-*-*]
1058 || [istarget pj*-*-*]
1059 || [istarget pru*-*-*]
1060 || [istarget s12z-*-*]
1061 || [istarget xgate-*-*]
1062 || [istarget z80-*-*] } {
1063 set gc_sections_available_saved 0
1067 # elf2flt uses -q (--emit-relocs), which is incompatible with
1069 if { [board_info target exists ldflags]
1070 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1071 set gc_sections_available_saved 0
1075 # Check if the ld used by gcc supports --gc-sections.
1076 # FIXME: this test is useless since ld --help always says
1077 # --gc-sections is available
1078 set ld_output [remote_exec host $ld "--help"]
1079 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1080 set gc_sections_available_saved 1
1082 set gc_sections_available_saved 0
1085 return $gc_sections_available_saved
1088 # Return true if target uses genelf.em.
1089 proc uses_genelf { } {
1090 if { [istarget "d30v-*-*"]
1091 || [istarget "dlx-*-*"]
1092 || [istarget "fr30-*-*"]
1093 || ([istarget "frv-*-*"] && ![istarget "frv-*-linux*"])
1094 || [istarget "ft32-*-*"]
1095 || [istarget "iq2000-*-*"]
1096 || [istarget "mn10200-*-*"]
1097 || [istarget "msp430-*-*"]
1098 || [istarget "mt-*-*"]
1099 || [istarget "pj*-*-*"]
1100 || [istarget "s12z-*-*"]
1101 || [istarget "xgate-*-*"] } {
1107 proc is_underscore_target { } {
1108 global is_underscore_target_saved
1109 global target_triplet
1112 if { ![info exists is_underscore_target_saved] } {
1113 set cmd "targ=$target_triplet . $srcdir/../../bfd/config.bfd &&"
1114 append cmd { echo "$targ_underscore"}
1116 set status [catch {exec sh -c $cmd} result]
1117 if { $status == 0 && [string match "yes" $result] } {
1118 set is_underscore_target_saved 1
1120 set is_underscore_target_saved 0
1123 return $is_underscore_target_saved
1126 # Returns true if the target ld supports the plugin API.
1127 proc check_plugin_api_available { } {
1128 global plugin_api_available_saved
1130 if {![info exists plugin_api_available_saved]} {
1131 # Check if the ld used by gcc supports --plugin.
1132 set ld_output [remote_exec host $ld "--help"]
1133 if { [regexp -- "-plugin PLUGIN \[^\n\r\]*" $ld_output line]
1134 && ![regexp "ignored" $line] } {
1135 set plugin_api_available_saved 1
1137 set plugin_api_available_saved 0
1140 return $plugin_api_available_saved
1143 # Sets ld_sysroot to the current sysroot (empty if not supported) and
1144 # returns true if the target ld supports sysroot.
1145 proc check_sysroot_available { } {
1146 global ld_sysroot_available_saved ld ld_sysroot
1147 if {![info exists ld_sysroot_available_saved]} {
1148 # Check if ld supports --sysroot *other* than empty.
1149 set ld_sysroot [string trimright [lindex [remote_exec host $ld "--print-sysroot"] 1]]
1150 if { $ld_sysroot == "" } {
1151 set ld_sysroot_available_saved 0
1153 set ld_sysroot_available_saved 1
1156 return $ld_sysroot_available_saved
1159 # Return true if we can build a program with the compiler.
1160 # On some targets, CC might be defined, but libraries and startup
1161 # code might be missing or require special options that the ld test
1162 # harness doesn't know about.
1164 proc check_compiler_available { } {
1165 global compiler_available_saved
1168 if {![info exists compiler_available_saved]} {
1169 if { [which $CC] == 0 } {
1170 set compiler_available_saved 0
1175 if [board_info [target_info name] exists cflags] {
1176 append flags " [board_info [target_info name] cflags]"
1178 if [board_info [target_info name] exists ldflags] {
1179 append flags " [board_info [target_info name] ldflags]"
1182 set basename "tmpdir/compiler[pid]"
1183 set src ${basename}.c
1184 set output ${basename}.out
1185 set f [open $src "w"]
1186 puts $f "int main (void)"
1188 puts $f " return 0; "
1191 if [is_remote host] {
1192 set src [remote_download host $src]
1194 set compiler_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
1195 remote_file host delete $src
1196 remote_file host delete $output
1199 return $compiler_available_saved
1202 # Returns 1 if plugin is enabled in gcc. Returns 0 otherwise.
1203 proc check_gcc_plugin_enabled { } {
1206 if {![info exists CC]} {
1212 set state [remote_exec host $CC -v]
1213 if { [lindex $state 0] != 0 } {
1216 for { set i 1 } { $i < [llength $state] } { incr i } {
1217 set v [lindex $state $i]
1218 if { [ string match "*--disable-plugin*" $v ] } {
1219 verbose "plugin is disabled by $v"
1227 # Returns true if the target compiler supports LTO
1228 proc check_lto_available { } {
1229 global lto_available_saved
1232 if {![info exists lto_available_saved]} {
1233 if { ![check_gcc_plugin_enabled] } {
1234 set lto_available_saved 0
1237 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1238 # -ffat-lto-objects, we always run LTO tests on Linux with
1240 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1241 set lto_available_saved 1
1244 # Check if gcc supports -flto -fuse-linker-plugin
1246 if [board_info [target_info name] exists cflags] {
1247 append flags " [board_info [target_info name] cflags]"
1249 if [board_info [target_info name] exists ldflags] {
1250 append flags " [board_info [target_info name] ldflags]"
1253 set basename "tmpdir/lto[pid]"
1254 set src ${basename}.c
1255 set output ${basename}.out
1256 set f [open $src "w"]
1257 puts $f "int main() { return 0; }"
1259 if [is_remote host] {
1260 set src [remote_download host $src]
1262 set lto_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -fuse-linker-plugin $src -o $output"]
1263 remote_file host delete $src
1264 remote_file host delete $output
1267 return $lto_available_saved
1270 # Returns true if the target compiler supports LTO -ffat-lto-objects
1271 proc check_lto_fat_available { } {
1272 global lto_fat_available_saved
1275 if {![info exists lto_fat_available_saved]} {
1276 if { ![check_gcc_plugin_enabled] } {
1277 set lto_fat_available_saved 0
1280 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1281 # -ffat-lto-objects, we always run LTO tests on Linux with
1283 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1284 set lto_fat_available_saved 1
1287 # Check if gcc supports -flto -fuse-linker-plugin
1289 if [board_info [target_info name] exists cflags] {
1290 append flags " [board_info [target_info name] cflags]"
1292 if [board_info [target_info name] exists ldflags] {
1293 append flags " [board_info [target_info name] ldflags]"
1296 set basename "tmpdir/lto[pid]"
1297 set src ${basename}.c
1298 set output ${basename}.out
1299 set f [open $src "w"]
1300 puts $f "int main() { return 0; }"
1302 if [is_remote host] {
1303 set src [remote_download host $src]
1305 set lto_fat_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
1306 remote_file host delete $src
1307 remote_file host delete $output
1310 return $lto_fat_available_saved
1313 # Returns true if the target compiler supports LTO and -shared
1314 proc check_lto_shared_available { } {
1315 global lto_shared_available_saved
1318 if {![info exists lto_shared_available_saved]} {
1319 if { ![check_gcc_plugin_enabled] } {
1320 set lto_shared_available_saved 0
1323 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1324 # -ffat-lto-objects, we always run LTO tests on Linux with
1326 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1327 set lto_shared_available_saved 1
1330 # Check if gcc supports -flto -fuse-linker-plugin -shared
1332 if [board_info [target_info name] exists cflags] {
1333 append flags " [board_info [target_info name] cflags]"
1335 if [board_info [target_info name] exists ldflags] {
1336 append flags " [board_info [target_info name] ldflags]"
1339 set basename "tmpdir/lto_shared[pid]"
1340 set src ${basename}.c
1341 set output ${basename}.so
1342 set f [open $src "w"]
1345 if [is_remote host] {
1346 set src [remote_download host $src]
1348 set lto_shared_available_saved [run_host_cmd_yesno "$CC" "$flags -shared -fPIC -flto -fuse-linker-plugin $src -o $output"]
1349 remote_file host delete $src
1350 remote_file host delete $output
1353 return $lto_shared_available_saved
1356 # Check if the assembler supports CFI statements.
1358 proc check_as_cfi { } {
1359 global check_as_cfi_result
1361 if [info exists check_as_cfi_result] {
1362 return $check_as_cfi_result
1364 set as_file "tmpdir/check_as_cfi.s"
1365 set as_fh [open $as_file w 0666]
1366 puts $as_fh "# Generated file. DO NOT EDIT"
1367 puts $as_fh "\t.cfi_startproc"
1368 puts $as_fh "\t.cfi_endproc"
1370 remote_download host $as_file
1371 verbose -log "Checking CFI support:"
1372 set success [ld_assemble $as $as_file "/dev/null"]
1373 #remote_file host delete $as_file
1374 set check_as_cfi_result $success
1378 # Returns true if IFUNC works.
1380 proc check_ifunc_available { } {
1381 global ifunc_available_saved
1384 if {![info exists ifunc_available_saved]} {
1385 if { ![check_compiler_available] } {
1386 set ifunc_available_saved 0
1389 # Check if gcc supports -flto -fuse-linker-plugin
1391 if [board_info [target_info name] exists cflags] {
1392 append flags " [board_info [target_info name] cflags]"
1394 if [board_info [target_info name] exists ldflags] {
1395 append flags " [board_info [target_info name] ldflags]"
1398 set basename "tmpdir/ifunc[pid]"
1399 set src ${basename}.c
1400 set output ${basename}.out
1401 set f [open $src "w"]
1402 puts $f "extern int library_func2 (void);"
1403 puts $f "int main (void)"
1405 puts $f " if (library_func2 () != 2) __builtin_abort ();"
1406 puts $f " return 0; "
1408 puts $f "static int library_func1 (void) {return 2; }"
1409 puts $f "void *foo (void) __asm__ (\"library_func2\");"
1410 puts $f "void *foo (void) { return library_func1; }"
1411 puts $f "__asm__(\".type library_func2, %gnu_indirect_function\");"
1413 if [is_remote host] {
1414 set src [remote_download host $src]
1416 set ifunc_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
1417 if { [isnative] && $ifunc_available_saved == 1 } {
1418 set ifunc_available_saved [run_host_cmd_yesno "$output" ""]
1420 remote_file host delete $src
1421 remote_file host delete $output
1424 return $ifunc_available_saved
1427 # Returns true if ifunc attribute works.
1429 proc check_ifunc_attribute_available { } {
1430 global ifunc_attribute_available_saved
1433 if {![info exists ifunc_attribute_available_saved]} {
1434 if { ![check_compiler_available] } {
1435 set ifunc_attribute_available_saved 0
1438 # Check if gcc supports -flto -fuse-linker-plugin
1440 if [board_info [target_info name] exists cflags] {
1441 append flags " [board_info [target_info name] cflags]"
1443 if [board_info [target_info name] exists ldflags] {
1444 append flags " [board_info [target_info name] ldflags]"
1447 set basename "tmpdir/ifunc[pid]"
1448 set src ${basename}.c
1449 set output ${basename}.out
1450 set f [open $src "w"]
1451 puts $f "extern int library_func2 (void) __attribute__ ((ifunc (\"foo\")));"
1452 puts $f "int main (void)"
1454 puts $f " if (library_func2 () != 2) __builtin_abort ();"
1455 puts $f " return 0; "
1457 puts $f "static int library_func1 (void) {return 2; }"
1458 puts $f "void *foo (void) { return library_func1; }"
1460 if [is_remote host] {
1461 set src [remote_download host $src]
1463 set ifunc_attribute_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
1464 if { [isnative] && $ifunc_attribute_available_saved == 1 } {
1465 set ifunc_attribute_available_saved [run_host_cmd_yesno "$output" ""]
1467 remote_file host delete $src
1468 remote_file host delete $output
1471 return $ifunc_attribute_available_saved
1474 # Return true if libdl is supported.
1476 proc check_libdl_available { } {
1477 global libdl_available_saved
1480 if {![info exists libdl_available_saved]} {
1481 if { ![check_compiler_available] } {
1482 set libdl_available_saved 0
1486 set basename "tmpdir/dl_avail_test[pid]"
1487 set src ${basename}.c
1488 set output ${basename}.out
1489 set f [open $src "w"]
1491 puts $f "#include <dlfcn.h>"
1492 puts $f "int main (void)"
1494 puts $f " dlopen (\"dummy.so\", RTLD_NOW);"
1495 puts $f " return 0; "
1498 if [is_remote host] {
1499 set src [remote_download host $src]
1501 set libdl_available_saved [run_host_cmd_yesno "$CC" "$src -o $output -ldl"]
1502 remote_file host delete $src
1503 remote_file host delete $output
1506 return $libdl_available_saved
1509 # Returns true if GNU2 TLS works.
1511 proc check_gnu2_tls_available { } {
1512 global gnu2_tls_available_saved
1516 if {![info exists gnu2_tls_available_saved]} {
1517 if { ![check_compiler_available] || "$GNU2_CFLAGS" == "" } {
1518 set gnu2_tls_available_saved 0
1521 # Check if GNU2 TLS works.
1522 set flags "$GNU2_CFLAGS"
1523 if [board_info [target_info name] exists cflags] {
1524 append flags " [board_info [target_info name] cflags]"
1526 if [board_info [target_info name] exists ldflags] {
1527 append flags " [board_info [target_info name] ldflags]"
1530 set basename "tmpdir/gnu2_tls[pid]"
1531 set src1 ${basename}1.c
1532 set output1 ${basename}.so
1533 set f [open $src1 "w"]
1534 puts $f "extern __thread int zzz;"
1535 puts $f "int foo (void)"
1537 puts $f " return zzz;"
1540 if [is_remote host] {
1541 set src1 [remote_download host $src1]
1543 set src2 ${basename}2.c
1544 set output2 ${basename}.exe
1545 set f [open $src2 "w"]
1546 puts $f "__thread int zzz = 20;"
1547 puts $f "extern int foo (void);"
1548 puts $f "int main (void)"
1550 puts $f " if (foo () != 20) __builtin_abort ();"
1551 puts $f " return 0; "
1554 if [is_remote host] {
1555 set src2 [remote_download host $src2]
1557 set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "-fPIC -shared $flags $src1 -o $output1"]
1558 if { $gnu2_tls_available_saved == 1 } {
1559 set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "$flags $src2 $output1 -o $output2"]
1560 if { $gnu2_tls_available_saved == 1 } {
1561 set gnu2_tls_available_saved [run_host_cmd_yesno "$output2" ""]
1564 remote_file host delete $src1
1565 remote_file host delete $output1
1566 remote_file host delete $src2
1567 remote_file host delete $output2
1568 file delete $src1 $src2
1570 return $gnu2_tls_available_saved