1 # Support routines for LD testsuite.
2 # Copyright 1994-2013 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 } {
33 if {![info exists CC]} {
39 set state [remote_exec host $CC --version]
40 set tmp "[lindex $state 1]\n"
41 # Look for (eg) 4.6.1 in the version output.
42 set ver_re "\[^\\.0-9\]+(\[1-9\]\[0-9\]*)\\.(\[0-9\]+)(?:\\.\[0-9\]+)?"
43 regexp $ver_re $tmp fred maj min
44 verbose "gcc version: $tmp"
45 if { ![info exists maj] || ![info exists min] } then {
46 perror "can't decipher gcc version number, fix the framework!"
49 verbose "major gcc version is $maj, want at least $major"
50 if { $maj == $major } then {
51 verbose "minor gcc version is $min, want at least $minor"
52 return [expr $min >= $minor]
54 return [expr $maj > $major]
58 # Extract and print the version number of ld.
60 proc default_ld_version { ld } {
63 if { ![is_remote host] && [which $ld] == 0 } then {
64 perror "$ld does not exist"
68 remote_exec host "$ld --version" "" "/dev/null" "ld.version"
69 remote_upload host "ld.version"
70 set tmp [prune_warnings [file_contents "ld.version"]]
71 remote_file build delete "ld.version"
72 remote_file host delete "ld.version"
74 regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
75 if [info exists number] then {
76 clone_output "$ld $number\n"
80 proc run_host_cmd { prog command } {
83 if { ![is_remote host] && [which "$prog"] == 0 } then {
84 perror "$prog does not exist"
88 verbose -log "$prog $command"
89 set status [remote_exec host [concat sh -c [list "$prog $command 2>&1"]] "" "/dev/null" "ld.tmp"]
90 remote_upload host "ld.tmp"
91 set link_output [file_contents "ld.tmp"]
92 regsub "\n$" $link_output "" link_output
93 if { [lindex $status 0] != 0 && [string match "" $link_output] } then {
94 append link_output "child process exited abnormally"
96 remote_file build delete ld.tmp
97 remote_file host delete ld.tmp
99 if [string match "" $link_output] then {
103 verbose -log "$link_output"
104 return "$link_output"
107 proc run_host_cmd_yesno { prog command } {
110 set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
111 if [string match "" $exec_output] then {
117 # Link an object using relocation.
119 proc default_ld_relocate { ld target objects } {
122 remote_file host delete $target
123 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"]
126 # Check to see if ld is being invoked with a non-endian output format
128 proc is_endian_output_format { object_flags } {
130 if {[string match "*-oformat binary*" $object_flags] || \
131 [string match "*-oformat ieee*" $object_flags] || \
132 [string match "*-oformat ihex*" $object_flags] || \
133 [string match "*-oformat netbsd-core*" $object_flags] || \
134 [string match "*-oformat srec*" $object_flags] || \
135 [string match "*-oformat tekhex*" $object_flags] || \
136 [string match "*-oformat trad-core*" $object_flags] } then {
143 # Look for big-endian or little-endian switches in the multlib
144 # options and translate these into a -EB or -EL switch. Note
145 # we cannot rely upon proc process_multilib_options to do this
146 # for us because for some targets the compiler does not support
147 # -EB/-EL but it does support -mbig-endian/-mlittle-endian, and
148 # the site.exp file will include the switch "-mbig-endian"
149 # (rather than "big-endian") which is not detected by proc
150 # process_multilib_options.
152 proc big_or_little_endian {} {
154 if [board_info [target_info name] exists multilib_flags] {
155 set tmp_flags " [board_info [target_info name] multilib_flags]"
157 foreach x $tmp_flags {
159 {*big*endian eb EB -eb -EB -mb -meb} {
163 {*little*endian el EL -el -EL -ml -mel} {
175 # Link a program using ld.
177 proc default_ld_link { ld target objects } {
188 if { [ string match "* -pie *" $objects ] } {
189 set objs "$HOSTING_SCRT0 $objects"
190 set libs "$LIBS $HOSTING_SLIBS"
192 set objs "$HOSTING_CRT0 $objects"
193 set libs "$LIBS $HOSTING_LIBS"
196 if [is_endian_output_format $objects] then {
197 set flags [big_or_little_endian]
202 remote_file host delete $target
204 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"]
207 # Link a program using ld, without including any libraries.
209 proc default_ld_simple_link { ld target objects } {
214 if [is_endian_output_format $objects] then {
215 set flags [big_or_little_endian]
220 # If we are compiling with gcc, we want to add gcc_ld_flag to
221 # flags. Rather than determine this in some complex way, we guess
222 # based on the name of the compiler.
224 set ldparm [string first " " $ld]
226 if { $ldparm > 0 } then {
227 set ldflags [string range $ld $ldparm end]
228 set ldexe [string range $ld 0 $ldparm]
231 set ldexe [string replace $ldexe 0 [string last "/" $ldexe] ""]
232 if {[string match "*gcc*" $ldexe] || [string match "*++*" $ldexe]} then {
233 set ldflags "$gcc_ld_flag $ldflags"
236 remote_file host delete $target
238 set exec_output [run_host_cmd "$ld" "$ldflags $flags -o $target $objects"]
239 set exec_output [prune_warnings $exec_output]
241 # We don't care if we get a warning about a non-existent start
242 # symbol, since the default linker script might use ENTRY.
243 regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
245 if [string match "" $exec_output] then {
252 # Compile an object using cc.
254 proc default_ld_compile { cc source object } {
263 if {[llength $cc_prog] > 1} then {
264 set cc_prog [lindex $cc_prog 0]
266 if {![is_remote host] && [which $cc_prog] == 0} then {
267 perror "$cc_prog does not exist"
271 remote_file build delete "$object"
272 remote_file host delete "$object"
274 set flags "-I$srcdir/$subdir"
276 # If we are compiling with gcc, we want to add gcc_gas_flag to
277 # flags. Rather than determine this in some complex way, we guess
278 # based on the name of the compiler.
280 set ccparm [string first " " $cc]
282 if { $ccparm > 0 } then {
283 set ccflags [string range $cc $ccparm end]
284 set ccexe [string range $cc 0 $ccparm]
287 set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
288 if {[string match "*gcc*" $ccexe] || [string match "*++*" $ccexe]} then {
289 set flags "$gcc_gas_flag $flags"
292 if {[string match "*++*" $ccexe]} {
293 set flags "$flags $CXXFLAGS"
295 set flags "$flags $CFLAGS"
298 if [board_info [target_info name] exists multilib_flags] {
299 append flags " [board_info [target_info name] multilib_flags]"
302 verbose -log "$cc $flags $ccflags -c $source -o $object"
304 set status [remote_exec host [concat sh -c [list "$cc $flags $ccflags -c $source -o $object 2>&1"]] "" "/dev/null" "ld.tmp"]
305 remote_upload host "ld.tmp"
306 set exec_output [file_contents "ld.tmp"]
307 remote_file build delete "ld.tmp"
308 remote_file host delete "ld.tmp"
309 set exec_output [prune_warnings $exec_output]
310 if [string match "" $exec_output] then {
311 if {![file exists $object]} then {
312 regexp ".*/(\[^/\]*)$" $source all dobj
313 regsub "\\.c" $dobj ".o" realobj
314 verbose "looking for $realobj"
315 if {[remote_file host exists $realobj]} then {
316 verbose -log "mv $realobj $object"
317 remote_upload "$realobj" "$object"
319 perror "$object not found after compilation"
325 verbose -log "$exec_output"
326 perror "$source: compilation failed"
333 proc default_ld_assemble { as in_flags source object } {
339 if ![info exists ASFLAGS] { set ASFLAGS "" }
341 set flags "[big_or_little_endian] -I$srcdir/$subdir"
342 set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"]
343 set exec_output [prune_warnings $exec_output]
344 if [string match "" $exec_output] then {
347 perror "$source: assembly failed"
352 # Run nm on a file, putting the result in the array nm_output.
354 proc default_ld_nm { nm nmflags object } {
359 if {[info exists nm_output]} {
363 if ![info exists NMFLAGS] { set NMFLAGS "" }
365 # Ensure consistent sorting of symbols
366 if {[info exists env(LC_ALL)]} {
367 set old_lc_all $env(LC_ALL)
371 verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
373 set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
374 if {[info exists old_lc_all]} {
375 set env(LC_ALL) $old_lc_all
379 remote_upload host "ld.stderr"
380 remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
381 set exec_output [prune_warnings [file_contents "ld.stderr"]]
382 remote_file host delete "ld.stderr"
383 remote_file build delete "ld.stderr"
384 if [string match "" $exec_output] then {
385 set file [open tmpdir/nm.out r]
386 while { [gets $file line] != -1 } {
388 if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
389 set name [string trimleft $name "_"]
390 verbose "Setting nm_output($name) to 0x$value" 2
391 set nm_output($name) 0x$value
397 verbose -log "$exec_output"
398 perror "$object: nm failed"
403 # Define various symbols needed when not linking against all
405 proc ld_simple_link_defsyms {} {
407 set flags "--defsym __stack_chk_fail=0"
409 # ARM targets call __gccmain
410 if {[istarget arm*-*-*]} {
411 append flags " --defsym __gccmain=0"
414 # Windows targets need __main, prefixed with underscore.
415 if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
416 append flags " --defsym ___main=0"
419 # PowerPC EABI code calls __eabi.
420 if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
421 append flags " --defsym __eabi=0"
424 # mn10200 code calls __truncsipsi2_d0_d2.
425 if {[istarget mn10200*-*-*]} then {
426 append flags " --defsym __truncsipsi2_d0_d2=0"
429 # m6811/m6812 code has references to soft registers.
430 if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
431 append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
432 append flags " --defsym _.d3=0 --defsym _.d4=0"
433 append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
436 # Some OpenBSD targets have ProPolice and reference __guard and
437 # __stack_smash_handler.
438 if [istarget *-*-openbsd*] {
439 append flags " --defsym __guard=0"
440 append flags " --defsym __stack_smash_handler=0"
446 # run_dump_test FILE (optional:) EXTRA_OPTIONS
447 # Copied from gas testsuite, tweaked and further extended.
449 # Assemble a .s file, then run some utility on it and check the output.
451 # There should be an assembly language file named FILE.s in the test
452 # suite directory, and a pattern file called FILE.d. `run_dump_test'
453 # will assemble FILE.s, run some tool like `objdump', `objcopy', or
454 # `nm' on the .o file to produce textual output, and then analyze that
455 # with regexps. The FILE.d file specifies what program to run, and
456 # what to expect in its output.
458 # The FILE.d file begins with zero or more option lines, which specify
459 # flags to pass to the assembler, the program to run to dump the
460 # assembler's output, and the options it wants. The option lines have
465 # OPTION is the name of some option, like "name" or "objdump", and
466 # VALUE is OPTION's value. The valid options are described below.
467 # Whitespace is ignored everywhere, except within VALUE. The option
468 # list ends with the first line that doesn't match the above syntax
469 # (hmm, not great for error detection).
471 # The optional EXTRA_OPTIONS argument to `run_dump_test' is a list of
472 # two-element lists. The first element of each is an option name, and
473 # the second additional arguments to be added on to the end of the
474 # option list as given in FILE.d. (If omitted, no additional options
477 # The interesting options are:
480 # The name of this test, passed to DejaGNU's `pass' and `fail'
481 # commands. If omitted, this defaults to FILE, the root of the
482 # .s and .d files' names.
485 # When assembling, pass FLAGS to the assembler.
486 # If assembling several files, you can pass different assembler
487 # options in the "source" directives. See below.
490 # Link assembled files using FLAGS, in the order of the "source"
491 # directives, when using multiple files.
493 # ld_after_inputfiles: FLAGS
494 # Similar to "ld", but put after all input files.
496 # objcopy_linked_file: FLAGS
497 # Run objcopy on the linked file with the specified flags.
498 # This lets you transform the linked file using objcopy, before the
499 # result is analyzed by an analyzer program specified below (which
500 # may in turn *also* be objcopy).
503 # The name of the program to run to analyze the .o file produced
504 # by the assembler or the linker output. This can be omitted;
505 # run_dump_test will guess which program to run by seeing which of
506 # the flags options below is present.
511 # Use the specified program to analyze the assembler or linker
512 # output file, and pass it FLAGS, in addition to the output name.
513 # Note that they are run with LC_ALL=C in the environment to give
514 # consistent sorting of symbols.
516 # source: SOURCE [FLAGS]
517 # Assemble the file SOURCE.s using the flags in the "as" directive
518 # and the (optional) FLAGS. If omitted, the source defaults to
520 # This is useful if several .d files want to share a .s file.
521 # More than one "source" directive can be given, which is useful
522 # when testing linking.
525 # Match against DUMP.d. If omitted, this defaults to FILE.d. This
526 # is useful if several .d files differ by options only. Options are
527 # always read from FILE.d.
530 # The test is expected to fail on TARGET. This may occur more than
534 # Only run the test for TARGET. This may occur more than once; the
535 # target being tested must match at least one. You may provide target
536 # name "cfi" for any target supporting the CFI statements.
539 # Do not run the test for TARGET. This may occur more than once;
540 # the target being tested must not match any of them.
543 # An error with message matching REGEX must be emitted for the test
544 # to pass. The PROG, objdump, nm and objcopy options have no
545 # meaning and need not supplied if this is present. Multiple "error"
546 # directives append to the expected linker error message.
549 # Expect a linker warning matching REGEX. It is an error to issue
550 # both "error" and "warning". Multiple "warning" directives
551 # append to the expected linker warning message.
553 # Each option may occur at most once unless otherwise mentioned.
555 # After the option lines come regexp lines. `run_dump_test' calls
556 # `regexp_diff' to compare the output of the dumping tool against the
557 # regexps in FILE.d. `regexp_diff' is defined in binutils-common.exp;
558 # see further comments there.
560 proc run_dump_test { name {extra_options {}} } {
562 global OBJDUMP NM AS OBJCOPY READELF LD
563 global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
564 global host_triplet runtests
567 if [string match "*/*" $name] {
569 set name [file tail $name]
571 set file "$srcdir/$subdir/$name"
574 if ![runtest_file_p $runtests $name] then {
578 set opt_array [slurp_options "${file}.d"]
579 if { $opt_array == -1 } {
580 perror "error reading options from $file.d"
581 unresolved $subdir/$name
584 set dumpfile tmpdir/dump.out
589 set opts(ld_after_inputfiles) {}
592 set opts(notarget) {}
603 set opts(objcopy_linked_file) {}
605 foreach i $opt_array {
606 set opt_name [lindex $i 0]
607 set opt_val [lindex $i 1]
608 if ![info exists opts($opt_name)] {
609 perror "unknown option $opt_name in file $file.d"
610 unresolved $subdir/$name
614 switch -- $opt_name {
621 # Move any source-specific as-flags to a separate list to
622 # simplify processing.
623 if { [llength $opt_val] > 1 } {
624 lappend asflags [lrange $opt_val 1 end]
625 set opt_val [lindex $opt_val 0]
631 if [string length $opts($opt_name)] {
632 perror "option $opt_name multiply set in $file.d"
633 unresolved $subdir/$name
637 # A single "# ld:" with no options should do the right thing.
638 if { $opt_name == "ld" } {
641 # Likewise objcopy_linked_file.
642 if { $opt_name == "objcopy_linked_file" } {
647 if { $opt_name == "as" || $opt_name == "ld" } {
648 set opt_val [subst $opt_val]
651 # Append differently whether it's a message (without space) or
652 # an option or list (with space).
653 switch -- $opt_name {
656 append opts($opt_name) $opt_val
659 set opts($opt_name) [concat $opts($opt_name) $opt_val]
664 foreach i $extra_options {
665 set opt_name [lindex $i 0]
666 set opt_val [lindex $i 1]
667 if ![info exists opts($opt_name)] {
668 perror "unknown option $opt_name given in extra_opts"
669 unresolved $subdir/$name
672 # Add extra option to end of existing option, adding space
674 if { ![regexp "warning|error" $opt_name]
675 && [string length $opts($opt_name)] } {
676 append opts($opt_name) " "
678 append opts($opt_name) $opt_val
681 foreach opt { as ld } {
682 regsub {\[big_or_little_endian\]} $opts($opt) \
683 [big_or_little_endian] opts($opt)
686 # Decide early whether we should run the test for this target.
687 if { [llength $opts(target)] > 0 } {
689 foreach targ $opts(target) {
690 if [istarget $targ] {
695 if { $targmatch == 0 } {
699 foreach targ $opts(notarget) {
700 if [istarget $targ] {
706 # It's meaningless to require an output-testing method when we
708 if { $opts(error) == "" } {
709 if {$opts(PROG) != ""} {
710 switch -- $opts(PROG) {
711 objdump { set program objdump }
712 nm { set program nm }
713 objcopy { set program objcopy }
714 readelf { set program readelf }
716 { perror "unrecognized program option $opts(PROG) in $file.d"
717 unresolved $subdir/$name
721 # Guess which program to run, by seeing which option was specified.
722 foreach p {objdump objcopy nm readelf} {
723 if {$opts($p) != ""} {
724 if {$program != ""} {
725 perror "ambiguous dump program in $file.d"
726 unresolved $subdir/$name
734 if { $program == "" && $opts(warning) == "" } {
735 perror "dump program unspecified in $file.d"
736 unresolved $subdir/$name
741 if { $opts(name) == "" } {
742 set testname "$subdir/$name"
744 set testname $opts(name)
747 if { $opts(source) == "" } {
748 set sourcefiles [list ${file}.s]
749 set asflags [list ""]
752 foreach sf $opts(source) {
753 if { [string match "/*" $sf] } {
754 lappend sourcefiles "$sf"
756 lappend sourcefiles "$srcdir/$subdir/$sf"
761 if { $opts(dump) == "" } {
764 set dfile $srcdir/$subdir/$opts(dump)
767 if { [string match "*--compress-debug-sections*" $opts(as)] \
768 && ![is_zlib_supported] } {
769 unsupported $testname
773 # Time to setup xfailures.
774 foreach targ $opts(xfail) {
778 # Assemble each file.
780 for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
781 set sourcefile [lindex $sourcefiles $i]
782 set sourceasflags [lindex $asflags $i]
784 set objfile "tmpdir/dump$i.o"
785 catch "exec rm -f $objfile" exec_output
786 lappend objfiles $objfile
787 set cmd "$AS $ASFLAGS $opts(as) $sourceasflags -o $objfile $sourcefile"
790 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
791 remote_upload host "ld.tmp"
792 set comp_output [prune_warnings [file_contents "ld.tmp"]]
793 remote_file host delete "ld.tmp"
794 remote_file build delete "ld.tmp"
796 if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
797 send_log "$comp_output\n"
798 verbose "$comp_output" 3
800 set exitstat "succeeded"
801 if { $cmdret != 0 } { set exitstat "failed" }
802 verbose -log "$exitstat with: <$comp_output>"
808 set expmsg $opts(error)
809 if { $opts(warning) != "" } {
810 if { $expmsg != "" } {
811 perror "$testname: mixing error and warning test-directives"
814 set expmsg $opts(warning)
817 # Perhaps link the file(s).
819 set objfile "tmpdir/dump"
820 catch "exec rm -f $objfile" exec_output
822 # Add -L$srcdir/$subdir so that the linker command can use
823 # linker scripts in the source directory.
824 set cmd "$LD $LDFLAGS -L$srcdir/$subdir \
825 $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
828 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
829 remote_upload host "ld.tmp"
830 set comp_output [file_contents "ld.tmp"]
831 remote_file host delete "ld.tmp"
832 remote_file build delete "ld.tmp"
833 set cmdret [lindex $cmdret 0]
835 if { $cmdret == 0 && $run_objcopy } {
837 set objfile "tmpdir/dump1"
838 remote_file host delete $objfile
840 # Note that we don't use OBJCOPYFLAGS here; any flags must be
841 # explicitly specified.
842 set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
845 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
846 remote_upload host "ld.tmp"
847 append comp_output [file_contents "ld.tmp"]
848 remote_file host delete "ld.tmp"
849 remote_file build delete "ld.tmp"
850 set cmdret [lindex $cmdret 0]
853 regsub "\n$" $comp_output "" comp_output
854 if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then {
855 set exitstat "succeeded"
856 if { $cmdret != 0 } { set exitstat "failed" }
857 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
858 send_log "$comp_output\n"
859 verbose "$comp_output" 3
861 if { ($expmsg == "") == ($comp_output == "") \
862 && [regexp $expmsg $comp_output] \
863 && (($cmdret == 0) == ($opts(error) == "")) } {
864 # We have the expected output from ld.
865 if { $opts(error) != "" || $program == "" } {
870 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
876 set objfile "tmpdir/dump0.o"
879 # We must not have expected failure if we get here.
880 if { $opts(error) != "" } {
885 set progopts1 $opts($program)
886 eval set progopts \$[string toupper $program]FLAGS
887 eval set binary \$[string toupper $program]
889 if { ![is_remote host] && [which $binary] == 0 } {
894 if { $progopts1 == "" } { set $progopts1 "-r" }
895 verbose "running $binary $progopts $progopts1" 3
897 # Objcopy, unlike the other two, won't send its output to stdout,
898 # so we have to run it specially.
899 set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
900 if { $program == "objcopy" } {
901 set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
904 # Ensure consistent sorting of symbols
905 if {[info exists env(LC_ALL)]} {
906 set old_lc_all $env(LC_ALL)
910 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
911 set cmdret [lindex $cmdret 0]
912 remote_upload host "ld.tmp"
913 set comp_output [prune_warnings [file_contents "ld.tmp"]]
914 remote_file host delete "ld.tmp"
915 remote_file build delete "ld.tmp"
916 if {[info exists old_lc_all]} {
917 set env(LC_ALL) $old_lc_all
921 if { $cmdret != 0 || $comp_output != "" } {
922 send_log "exited abnormally with $cmdret, output:$comp_output\n"
927 if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
928 if { [regexp_diff $dumpfile "${dfile}"] } then {
930 if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
937 proc slurp_options { file } {
938 # If options_regsub(foo) is set to {a b}, then the contents of a
939 # "#foo:" line will have regsub -all applied to replace a with b.
940 global options_regsub
942 if [catch { set f [open $file r] } x] {
943 #perror "couldn't open `$file': $x"
948 # whitespace expression
951 # whitespace is ignored anywhere except within the options list;
952 # option names are alphabetic plus underscore only.
953 set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$"
954 while { [gets $f line] != -1 } {
955 set line [string trim $line]
956 # Whitespace here is space-tab.
957 if [regexp $pat $line xxx opt_name opt_val] {
959 if [info exists options_regsub($opt_name)] {
960 set subst $options_regsub($opt_name)
961 regsub -all -- [lindex $subst 0] $opt_val [lindex $subst 1] \
964 lappend opt_array [list $opt_name $opt_val]
973 proc file_contents { filename } {
974 set file [open $filename r]
975 set contents [read $file]
980 proc set_file_contents { filename contents } {
981 set file [open $filename w]
982 puts $file "$contents"
986 # Create an archive using ar
988 proc ar_simple_create { ar aropts target objects } {
989 remote_file host delete $target
991 set exec_output [run_host_cmd "$ar" "$aropts -rc $target $objects"]
992 set exec_output [prune_warnings $exec_output]
994 if [string match "" $exec_output] then {
995 send_log "$exec_output\n"
1002 # List contains test-items with 3 items followed by 2 lists, one item and
1003 # one optional item:
1005 # 1:ld/ar leading options, placed before object files
1006 # 2:ld/ar trailing options, placed after object files
1007 # 3:assembler options
1008 # 4:filenames of assembler files
1009 # 5:list of actions, options and expected outputs.
1010 # 6:name of output file
1011 # 7:compiler flags (optional)
1013 # Actions: { command command-line-options file-containg-expected-output-regexps }
1015 # objdump: Apply objdump options on result.
1016 # nm: Apply nm options on result.
1017 # readelf: Apply readelf options on result.
1018 # ld: Don't apply anything on result. Compare output during linking with
1019 # the file containing regexps (which is the second arg, not the third).
1020 # Note that this *must* be the first action if it is to be used at all;
1021 # in all other cases, any output from the linker during linking is
1022 # treated as a sign of an error and FAILs the test.
1024 proc run_ld_link_tests { ldtests } {
1039 foreach testitem $ldtests {
1040 set testname [lindex $testitem 0]
1042 if ![runtest_file_p $runtests $testname] then {
1046 set ld_options [lindex $testitem 1]
1047 set ld_after [lindex $testitem 2]
1048 set as_options [lindex $testitem 3]
1049 set src_files [lindex $testitem 4]
1050 set actions [lindex $testitem 5]
1051 set binfile tmpdir/[lindex $testitem 6]
1052 set cflags [lindex $testitem 7]
1059 # verbose -log "Testname is $testname"
1060 # verbose -log "ld_options is $ld_options"
1061 # verbose -log "ld_after is $ld_after"
1062 # verbose -log "as_options is $as_options"
1063 # verbose -log "src_files is $src_files"
1064 # verbose -log "actions is $actions"
1065 # verbose -log "binfile is $binfile"
1067 # Assemble each file in the test.
1068 foreach src_file $src_files {
1069 set fileroot "[file rootname [file tail $src_file]]"
1070 set objfile "tmpdir/$fileroot.o"
1071 lappend objfiles $objfile
1073 if { [file extension $src_file] == ".c" } {
1074 set as_file "tmpdir/$fileroot.s"
1075 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
1080 set as_file "$srcdir/$subdir/$src_file"
1082 if ![ld_assemble $as "$as_options $as_file" $objfile] {
1088 # Catch assembler errors.
1089 if { $is_unresolved } {
1090 unresolved $testname
1094 if { [regexp ".*\\.a$" $binfile] } {
1095 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
1098 } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
1100 set ld_output "$exec_output"
1104 foreach actionlist $actions {
1105 set action [lindex $actionlist 0]
1106 set progopts [lindex $actionlist 1]
1108 # There are actions where we run regexp_diff on the
1109 # output, and there are other actions (presumably).
1110 # Handling of the former look the same.
1114 { set dump_prog $objdump }
1116 { set dump_prog $nm }
1118 { set dump_prog $READELF }
1120 { set dump_prog "ld" }
1123 perror "Unrecognized action $action"
1129 if { $action == "ld" } {
1130 set regexpfile $progopts
1131 verbose "regexpfile is $srcdir/$subdir/$regexpfile"
1132 set_file_contents "tmpdir/ld.messages" "$ld_output"
1133 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
1134 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then {
1135 verbose "output is $ld_output" 2
1140 } elseif { !$maybe_failed && $dump_prog != "" } {
1141 set dumpfile [lindex $actionlist 2]
1142 set binary $dump_prog
1144 # Ensure consistent sorting of symbols
1145 if {[info exists env(LC_ALL)]} {
1146 set old_lc_all $env(LC_ALL)
1149 set cmd "$binary $progopts $binfile"
1150 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
1152 remote_upload host "ld.stderr"
1153 set comp_output [prune_warnings [file_contents "ld.stderr"]]
1154 remote_file host delete "ld.stderr"
1155 remote_file build delete "ld.stderr"
1157 if {[info exists old_lc_all]} {
1158 set env(LC_ALL) $old_lc_all
1163 if ![string match "" $comp_output] then {
1164 send_log "$comp_output\n"
1169 remote_upload host "dump.out"
1171 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1172 verbose "output is [file_contents "dump.out"]" 2
1174 remote_file build delete "dump.out"
1175 remote_file host delete "dump.out"
1178 remote_file build delete "dump.out"
1179 remote_file host delete "dump.out"
1184 if { $is_unresolved } {
1185 unresolved $testname
1186 } elseif { $maybe_failed || $failed } {
1194 # This definition is taken from an unreleased version of DejaGnu. Once
1195 # that version gets released, and has been out in the world for a few
1196 # months at least, it may be safe to delete this copy.
1197 if ![string length [info proc prune_warnings]] {
1199 # prune_warnings -- delete various system verbosities from TEXT
1202 # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
1204 # Sites with particular verbose os's may wish to override this in site.exp.
1206 proc prune_warnings { text } {
1207 # This is from sun4's. Do it for all machines for now.
1208 # The "\\1" is to try to preserve a "\n" but only if necessary.
1209 regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
1211 # It might be tempting to get carried away and delete blank lines, etc.
1212 # Just delete *exactly* what we're ask to, and that's it.
1217 # targets_to_xfail is a list of target triplets to be xfailed.
1218 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
1219 # and 3 optional items:
1222 # 2:assembler options
1223 # 3:filenames of source files
1224 # 4:name of output file
1226 # 6:compiler flags (optional)
1227 # 7:language (optional)
1228 # 8:linker warning (optional)
1230 proc run_ld_link_exec_tests { targets_to_xfail ldtests } {
1243 foreach testitem $ldtests {
1244 foreach target $targets_to_xfail {
1247 set testname [lindex $testitem 0]
1248 set ld_options [lindex $testitem 1]
1249 set as_options [lindex $testitem 2]
1250 set src_files [lindex $testitem 3]
1251 set binfile tmpdir/[lindex $testitem 4]
1252 set expfile [lindex $testitem 5]
1253 set cflags [lindex $testitem 6]
1254 set lang [lindex $testitem 7]
1255 set warning [lindex $testitem 8]
1259 # verbose -log "Testname is $testname"
1260 # verbose -log "ld_options is $ld_options"
1261 # verbose -log "as_options is $as_options"
1262 # verbose -log "src_files is $src_files"
1263 # verbose -log "binfile is $binfile"
1265 # Assemble each file in the test.
1266 foreach src_file $src_files {
1267 set fileroot "[file rootname [file tail $src_file]]"
1268 set objfile "tmpdir/$fileroot.o"
1269 lappend objfiles $objfile
1271 # We ignore warnings since some compilers may generate
1272 # incorrect section attributes and the assembler will warn
1274 if { [ string match "c++" $lang ] } {
1275 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1277 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1281 # We have to use $CC to build PIE and shared library.
1282 if { [ string match "c" $lang ] } {
1283 set link_proc ld_simple_link
1285 } elseif { [ string match "c++" $lang ] } {
1286 set link_proc ld_simple_link
1288 } elseif { [ string match "-shared" $ld_options ] \
1289 || [ string match "-pie" $ld_options ] } {
1290 set link_proc ld_simple_link
1293 set link_proc ld_link
1297 if ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
1303 # Check if exec_output is expected.
1304 if { $warning != "" } then {
1305 verbose -log "returned with: <$exec_output>, expected: <$warning>"
1306 if { [regexp $warning $exec_output] } then {
1313 if { $failed == 0 } {
1314 send_log "Running: $binfile > $binfile.out\n"
1315 verbose "Running: $binfile > $binfile.out"
1316 catch "exec $binfile > $binfile.out" exec_output
1318 if ![string match "" $exec_output] then {
1319 send_log "$exec_output\n"
1320 verbose "$exec_output" 1
1323 send_log "diff $binfile.out $srcdir/$subdir/$expfile\n"
1324 verbose "diff $binfile.out $srcdir/$subdir/$expfile"
1325 catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output
1326 set exec_output [prune_warnings $exec_output]
1328 if ![string match "" $exec_output] then {
1329 send_log "$exec_output\n"
1330 verbose "$exec_output" 1
1336 if { $failed != 0 } {
1345 # List contains test-items with 3 items followed by 2 lists, one item and
1346 # one optional item:
1348 # 1:ld or ar options
1350 # 3:filenames of source files
1351 # 4:action and options.
1352 # 5:name of output file
1353 # 6:language (optional)
1354 # 7:linker warnings (optional)
1357 # objdump: Apply objdump options on result. Compare with regex (last arg).
1358 # nm: Apply nm options on result. Compare with regex (last arg).
1359 # readelf: Apply readelf options on result. Compare with regex (last arg).
1361 proc run_cc_link_tests { ldtests } {
1375 foreach testitem $ldtests {
1376 set testname [lindex $testitem 0]
1377 set ldflags [lindex $testitem 1]
1378 set cflags [lindex $testitem 2]
1379 set src_files [lindex $testitem 3]
1380 set actions [lindex $testitem 4]
1381 set binfile tmpdir/[lindex $testitem 5]
1382 set lang [lindex $testitem 6]
1383 set warnings [lindex $testitem 7]
1388 # Compile each file in the test.
1389 foreach src_file $src_files {
1390 set fileroot "[file rootname [file tail $src_file]]"
1391 set objfile "tmpdir/$fileroot.o"
1392 lappend objfiles $objfile
1394 # We ignore warnings since some compilers may generate
1395 # incorrect section attributes and the assembler will warn
1397 if { [ string match "c++" $lang ] } {
1398 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1400 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1404 # Clear error and warning counts.
1407 if { [ string match "c++" $lang ] } {
1413 if { [regexp ".*\\.a$" $binfile] } {
1414 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
1421 if { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
1427 # Check if exec_output is expected.
1428 if { $warnings != "" } then {
1429 verbose -log "returned with: <$exec_output>, expected: <$warnings>"
1430 if { [regexp $warnings $exec_output] } then {
1437 if { $failed == 1 } {
1442 if { $failed == 0 } {
1443 foreach actionlist $actions {
1444 set action [lindex $actionlist 0]
1445 set progopts [lindex $actionlist 1]
1447 # There are actions where we run regexp_diff on the
1448 # output, and there are other actions (presumably).
1449 # Handling of the former look the same.
1453 { set dump_prog $objdump }
1455 { set dump_prog $nm }
1457 { set dump_prog $READELF }
1460 perror "Unrecognized action $action"
1466 if { $dump_prog != "" } {
1467 set dumpfile [lindex $actionlist 2]
1468 set binary $dump_prog
1470 # Ensure consistent sorting of symbols
1471 if {[info exists env(LC_ALL)]} {
1472 set old_lc_all $env(LC_ALL)
1475 set cmd "$binary $progopts $binfile > dump.out"
1477 catch "exec $cmd" comp_output
1478 if {[info exists old_lc_all]} {
1479 set env(LC_ALL) $old_lc_all
1483 set comp_output [prune_warnings $comp_output]
1485 if ![string match "" $comp_output] then {
1486 send_log "$comp_output\n"
1491 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1492 verbose "output is [file_contents "dump.out"]" 2
1499 if { $failed != 0 } {
1501 } else { if { $is_unresolved == 0 } {
1506 # Catch action errors.
1507 if { $is_unresolved != 0 } {
1508 unresolved $testname
1514 # Returns true if --gc-sections is supported on the target.
1516 proc check_gc_sections_available { } {
1517 global gc_sections_available_saved
1520 if {![info exists gc_sections_available_saved]} {
1521 # Some targets don't support gc-sections despite whatever's
1522 # advertised by ld's options.
1523 if { [istarget arc-*-*]
1524 || [istarget d30v-*-*]
1525 || [istarget dlx-*-*]
1526 || [istarget i960-*-*]
1527 || [istarget or32-*-*]
1528 || [istarget pj*-*-*]
1529 || [istarget alpha-*-*]
1530 || [istarget hppa*64-*-*]
1531 || [istarget i370-*-*]
1532 || [istarget i860-*-*]
1533 || [istarget ia64-*-*]
1534 || [istarget mep-*-*]
1535 || [istarget mn10200-*-*]
1536 || [istarget *-*-cygwin]
1537 || [istarget *-*-mingw*] } {
1538 set gc_sections_available_saved 0
1542 # elf2flt uses -q (--emit-relocs), which is incompatible with
1544 if { [board_info target exists ldflags]
1545 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1546 set gc_sections_available_saved 0
1550 # Check if the ld used by gcc supports --gc-sections.
1551 # FIXME: this test is useless since ld --help always says
1552 # --gc-sections is available
1553 set ld_output [remote_exec host $ld "--help"]
1554 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1555 set gc_sections_available_saved 1
1557 set gc_sections_available_saved 0
1560 return $gc_sections_available_saved
1563 # Returns true if -shared is supported on the target
1564 # Only used and accurate for ELF targets at the moment
1566 proc check_shared_lib_support { } {
1567 if {![istarget aarch64*-*-elf]
1568 && ![istarget arc-*-*]
1569 && ![istarget arm*-*-elf]
1570 && ![istarget avr-*-*]
1571 && ![istarget cr16-*-*]
1572 && ![istarget cris*-*-elf]
1573 && ![istarget crx-*-*]
1574 && ![istarget d10v-*-*]
1575 && ![istarget d30v-*-*]
1576 && ![istarget dlx-*-*]
1577 && ![istarget epiphany-*-*]
1578 && ![istarget fr30-*-*]
1579 && ![istarget frv-*-*]
1580 && ![istarget h8300-*-*]
1581 && ![istarget i860-*-*]
1582 && ![istarget i960-*-*]
1583 && ![istarget ip2k-*-*]
1584 && ![istarget iq2000-*-*]
1585 && ![istarget lm32-*-*]
1586 && ![istarget m32c-*-*]
1587 && ![istarget m32r-*-*]
1588 && ![istarget m6811-*-*]
1589 && ![istarget m6812-*-*]
1590 && ![istarget m68hc1*-*-*]
1591 && ![istarget mcore*-*-*]
1592 && ![istarget mep-*-*]
1593 && ![istarget microblaze-*-*]
1594 && ![istarget mips*-*-elf]
1595 && ![istarget mn10200-*-*]
1596 && ![istarget moxie-*-*]
1597 && ![istarget msp430-*-*]
1598 && ![istarget mt-*-*]
1599 && ![istarget nds32*-*-*]
1600 && ![istarget openrisc-*-*]
1601 && ![istarget or32-*-*]
1602 && ![istarget pj-*-*]
1603 && ![istarget rl78-*-*]
1604 && ![istarget rx-*-*]
1605 && ![istarget spu-*-*]
1606 && ![istarget v850*-*-*]
1607 && ![istarget xstormy16-*-*]
1608 && ![istarget *-*-irix*]
1609 && ![istarget *-*-rtems] } {
1615 # Returns true if the target ld supports the plugin API.
1616 proc check_plugin_api_available { } {
1617 global plugin_api_available_saved
1619 if {![info exists plugin_api_available_saved]} {
1620 # Check if the ld used by gcc supports --plugin.
1621 set ld_output [remote_exec host $ld "--help"]
1622 if { [ string first "-plugin" $ld_output ] >= 0 } {
1623 set plugin_api_available_saved 1
1625 set plugin_api_available_saved 0
1628 return $plugin_api_available_saved
1631 # Returns true if the target compiler supports LTO
1632 proc check_lto_available { } {
1633 global lto_available_saved
1635 if {![info exists lto_available_saved]} {
1636 # Check if gcc supports -flto -fuse-linker-plugin
1637 if { [which $CC] == 0 } {
1638 set lto_available_saved 0
1642 set src ${basename}[pid].c
1643 set output ${basename}[pid].so
1644 set f [open $src "w"]
1647 set status [remote_exec host $CC "-shared -B[pwd]/tmpdir/ld/ -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
1648 if { [lindex $status 0] == 0 } {
1649 set lto_available_saved 1
1651 set lto_available_saved 0
1656 return $lto_available_saved
1659 # Check if the assembler supports CFI statements.
1661 proc check_as_cfi { } {
1662 global check_as_cfi_result
1664 if [info exists check_as_cfi_result] {
1665 return $check_as_cfi_result
1667 set as_file "tmpdir/check_as_cfi.s"
1668 set as_fh [open $as_file w 0666]
1669 puts $as_fh "# Generated file. DO NOT EDIT"
1670 puts $as_fh "\t.cfi_startproc"
1671 puts $as_fh "\t.cfi_endproc"
1673 remote_download host $as_file
1674 verbose -log "Checking CFI support:"
1675 rename "perror" "check_as_cfi_perror"
1676 proc perror { args } { }
1677 set success [ld_assemble $as $as_file "/dev/null"]
1679 rename "check_as_cfi_perror" "perror"
1680 #remote_file host delete $as_file
1681 set check_as_cfi_result $success
1685 # Provide virtual target "cfi" for targets supporting CFI.
1687 rename "istarget" "istarget_ld"
1688 proc istarget { target } {
1689 if {$target == "cfi"} {
1690 return [check_as_cfi]
1692 return [istarget_ld $target]