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 } {
187 if { [ string match "* -pie *" $objects ] } {
188 set objs "$HOSTING_SCRT0 $objects"
190 set objs "$HOSTING_CRT0 $objects"
192 set libs "$LIBS $HOSTING_LIBS"
194 if [is_endian_output_format $objects] then {
195 set flags [big_or_little_endian]
200 remote_file host delete $target
202 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"]
205 # Link a program using ld, without including any libraries.
207 proc default_ld_simple_link { ld target objects } {
212 if [is_endian_output_format $objects] then {
213 set flags [big_or_little_endian]
218 # If we are compiling with gcc, we want to add gcc_ld_flag to
219 # flags. Rather than determine this in some complex way, we guess
220 # based on the name of the compiler.
222 set ldparm [string first " " $ld]
224 if { $ldparm > 0 } then {
225 set ldflags [string range $ld $ldparm end]
226 set ldexe [string range $ld 0 $ldparm]
229 set ldexe [string replace $ldexe 0 [string last "/" $ldexe] ""]
230 if {[string match "*gcc*" $ldexe] || [string match "*++*" $ldexe]} then {
231 set ldflags "$gcc_ld_flag $ldflags"
234 remote_file host delete $target
236 set exec_output [run_host_cmd "$ld" "$ldflags $flags -o $target $objects"]
237 set exec_output [prune_warnings $exec_output]
239 # We don't care if we get a warning about a non-existent start
240 # symbol, since the default linker script might use ENTRY.
241 regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
243 if [string match "" $exec_output] then {
250 # Compile an object using cc.
252 proc default_ld_compile { cc source object } {
261 if {[llength $cc_prog] > 1} then {
262 set cc_prog [lindex $cc_prog 0]
264 if {![is_remote host] && [which $cc_prog] == 0} then {
265 perror "$cc_prog does not exist"
269 remote_file build delete "$object"
270 remote_file host delete "$object"
272 set flags "-I$srcdir/$subdir"
274 # If we are compiling with gcc, we want to add gcc_gas_flag to
275 # flags. Rather than determine this in some complex way, we guess
276 # based on the name of the compiler.
278 set ccparm [string first " " $cc]
280 if { $ccparm > 0 } then {
281 set ccflags [string range $cc $ccparm end]
282 set ccexe [string range $cc 0 $ccparm]
285 set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
286 if {[string match "*gcc*" $ccexe] || [string match "*++*" $ccexe]} then {
287 set flags "$gcc_gas_flag $flags"
290 if {[string match "*++*" $ccexe]} {
291 set flags "$flags $CXXFLAGS"
293 set flags "$flags $CFLAGS"
296 if [board_info [target_info name] exists multilib_flags] {
297 append flags " [board_info [target_info name] multilib_flags]"
300 verbose -log "$cc $flags $ccflags -c $source -o $object"
302 set status [remote_exec host [concat sh -c [list "$cc $flags $ccflags -c $source -o $object 2>&1"]] "" "/dev/null" "ld.tmp"]
303 remote_upload host "ld.tmp"
304 set exec_output [file_contents "ld.tmp"]
305 remote_file build delete "ld.tmp"
306 remote_file host delete "ld.tmp"
307 set exec_output [prune_warnings $exec_output]
308 if [string match "" $exec_output] then {
309 if {![file exists $object]} then {
310 regexp ".*/(\[^/\]*)$" $source all dobj
311 regsub "\\.c" $dobj ".o" realobj
312 verbose "looking for $realobj"
313 if {[remote_file host exists $realobj]} then {
314 verbose -log "mv $realobj $object"
315 remote_upload "$realobj" "$object"
317 perror "$object not found after compilation"
323 verbose -log "$exec_output"
324 perror "$source: compilation failed"
331 proc default_ld_assemble { as in_flags source object } {
335 if ![info exists ASFLAGS] { set ASFLAGS "" }
337 set flags [big_or_little_endian]
338 set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"]
339 set exec_output [prune_warnings $exec_output]
340 if [string match "" $exec_output] then {
343 perror "$source: assembly failed"
348 # Run nm on a file, putting the result in the array nm_output.
350 proc default_ld_nm { nm nmflags object } {
355 if {[info exists nm_output]} {
359 if ![info exists NMFLAGS] { set NMFLAGS "" }
361 # Ensure consistent sorting of symbols
362 if {[info exists env(LC_ALL)]} {
363 set old_lc_all $env(LC_ALL)
367 verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
369 set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
370 if {[info exists old_lc_all]} {
371 set env(LC_ALL) $old_lc_all
375 remote_upload host "ld.stderr"
376 remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
377 set exec_output [prune_warnings [file_contents "ld.stderr"]]
378 remote_file host delete "ld.stderr"
379 remote_file build delete "ld.stderr"
380 if [string match "" $exec_output] then {
381 set file [open tmpdir/nm.out r]
382 while { [gets $file line] != -1 } {
384 if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
385 set name [string trimleft $name "_"]
386 verbose "Setting nm_output($name) to 0x$value" 2
387 set nm_output($name) 0x$value
393 verbose -log "$exec_output"
394 perror "$object: nm failed"
399 # Define various symbols needed when not linking against all
401 proc ld_simple_link_defsyms {} {
403 set flags "--defsym __stack_chk_fail=0"
405 # ARM targets call __gccmain
406 if {[istarget arm*-*-*]} {
407 append flags " --defsym __gccmain=0"
410 # Windows targets need __main, prefixed with underscore.
411 if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
412 append flags " --defsym ___main=0"
415 # PowerPC EABI code calls __eabi.
416 if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
417 append flags " --defsym __eabi=0"
420 # mn10200 code calls __truncsipsi2_d0_d2.
421 if {[istarget mn10200*-*-*]} then {
422 append flags " --defsym __truncsipsi2_d0_d2=0"
425 # m6811/m6812 code has references to soft registers.
426 if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
427 append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
428 append flags " --defsym _.d3=0 --defsym _.d4=0"
429 append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
432 # Some OpenBSD targets have ProPolice and reference __guard and
433 # __stack_smash_handler.
434 if [istarget *-*-openbsd*] {
435 append flags " --defsym __guard=0"
436 append flags " --defsym __stack_smash_handler=0"
442 # run_dump_test FILE (optional:) EXTRA_OPTIONS
443 # Copied from gas testsuite, tweaked and further extended.
445 # Assemble a .s file, then run some utility on it and check the output.
447 # There should be an assembly language file named FILE.s in the test
448 # suite directory, and a pattern file called FILE.d. `run_dump_test'
449 # will assemble FILE.s, run some tool like `objdump', `objcopy', or
450 # `nm' on the .o file to produce textual output, and then analyze that
451 # with regexps. The FILE.d file specifies what program to run, and
452 # what to expect in its output.
454 # The FILE.d file begins with zero or more option lines, which specify
455 # flags to pass to the assembler, the program to run to dump the
456 # assembler's output, and the options it wants. The option lines have
461 # OPTION is the name of some option, like "name" or "objdump", and
462 # VALUE is OPTION's value. The valid options are described below.
463 # Whitespace is ignored everywhere, except within VALUE. The option
464 # list ends with the first line that doesn't match the above syntax
465 # (hmm, not great for error detection).
467 # The optional EXTRA_OPTIONS argument to `run_dump_test' is a list of
468 # two-element lists. The first element of each is an option name, and
469 # the second additional arguments to be added on to the end of the
470 # option list as given in FILE.d. (If omitted, no additional options
473 # The interesting options are:
476 # The name of this test, passed to DejaGNU's `pass' and `fail'
477 # commands. If omitted, this defaults to FILE, the root of the
478 # .s and .d files' names.
481 # When assembling, pass FLAGS to the assembler.
482 # If assembling several files, you can pass different assembler
483 # options in the "source" directives. See below.
486 # Link assembled files using FLAGS, in the order of the "source"
487 # directives, when using multiple files.
489 # ld_after_inputfiles: FLAGS
490 # Similar to "ld", but put after all input files.
492 # objcopy_linked_file: FLAGS
493 # Run objcopy on the linked file with the specified flags.
494 # This lets you transform the linked file using objcopy, before the
495 # result is analyzed by an analyzer program specified below (which
496 # may in turn *also* be objcopy).
499 # The name of the program to run to analyze the .o file produced
500 # by the assembler or the linker output. This can be omitted;
501 # run_dump_test will guess which program to run by seeing which of
502 # the flags options below is present.
507 # Use the specified program to analyze the assembler or linker
508 # output file, and pass it FLAGS, in addition to the output name.
509 # Note that they are run with LC_ALL=C in the environment to give
510 # consistent sorting of symbols.
512 # source: SOURCE [FLAGS]
513 # Assemble the file SOURCE.s using the flags in the "as" directive
514 # and the (optional) FLAGS. If omitted, the source defaults to
516 # This is useful if several .d files want to share a .s file.
517 # More than one "source" directive can be given, which is useful
518 # when testing linking.
521 # Match against DUMP.d. If omitted, this defaults to FILE.d. This
522 # is useful if several .d files differ by options only. Options are
523 # always read from FILE.d.
526 # The test is expected to fail on TARGET. This may occur more than
530 # Only run the test for TARGET. This may occur more than once; the
531 # target being tested must match at least one. You may provide target
532 # name "cfi" for any target supporting the CFI statements.
535 # Do not run the test for TARGET. This may occur more than once;
536 # the target being tested must not match any of them.
539 # An error with message matching REGEX must be emitted for the test
540 # to pass. The PROG, objdump, nm and objcopy options have no
541 # meaning and need not supplied if this is present. Multiple "error"
542 # directives append to the expected linker error message.
545 # Expect a linker warning matching REGEX. It is an error to issue
546 # both "error" and "warning". Multiple "warning" directives
547 # append to the expected linker warning message.
549 # Each option may occur at most once unless otherwise mentioned.
551 # After the option lines come regexp lines. `run_dump_test' calls
552 # `regexp_diff' to compare the output of the dumping tool against the
553 # regexps in FILE.d. `regexp_diff' is defined in binutils-common.exp;
554 # see further comments there.
556 proc run_dump_test { name {extra_options {}} } {
558 global OBJDUMP NM AS OBJCOPY READELF LD
559 global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
560 global host_triplet runtests
563 if [string match "*/*" $name] {
565 set name [file tail $name]
567 set file "$srcdir/$subdir/$name"
570 if ![runtest_file_p $runtests $name] then {
574 set opt_array [slurp_options "${file}.d"]
575 if { $opt_array == -1 } {
576 perror "error reading options from $file.d"
577 unresolved $subdir/$name
580 set dumpfile tmpdir/dump.out
585 set opts(ld_after_inputfiles) {}
588 set opts(notarget) {}
599 set opts(objcopy_linked_file) {}
601 foreach i $opt_array {
602 set opt_name [lindex $i 0]
603 set opt_val [lindex $i 1]
604 if ![info exists opts($opt_name)] {
605 perror "unknown option $opt_name in file $file.d"
606 unresolved $subdir/$name
610 switch -- $opt_name {
617 # Move any source-specific as-flags to a separate list to
618 # simplify processing.
619 if { [llength $opt_val] > 1 } {
620 lappend asflags [lrange $opt_val 1 end]
621 set opt_val [lindex $opt_val 0]
627 if [string length $opts($opt_name)] {
628 perror "option $opt_name multiply set in $file.d"
629 unresolved $subdir/$name
633 # A single "# ld:" with no options should do the right thing.
634 if { $opt_name == "ld" } {
637 # Likewise objcopy_linked_file.
638 if { $opt_name == "objcopy_linked_file" } {
643 if { $opt_name == "as" || $opt_name == "ld" } {
644 set opt_val [subst $opt_val]
647 # Append differently whether it's a message (without space) or
648 # an option or list (with space).
649 switch -- $opt_name {
652 append opts($opt_name) $opt_val
655 set opts($opt_name) [concat $opts($opt_name) $opt_val]
660 foreach i $extra_options {
661 set opt_name [lindex $i 0]
662 set opt_val [lindex $i 1]
663 if ![info exists opts($opt_name)] {
664 perror "unknown option $opt_name given in extra_opts"
665 unresolved $subdir/$name
668 # Add extra option to end of existing option, adding space
670 if { ![regexp "warning|error" $opt_name]
671 && [string length $opts($opt_name)] } {
672 append opts($opt_name) " "
674 append opts($opt_name) $opt_val
677 foreach opt { as ld } {
678 regsub {\[big_or_little_endian\]} $opts($opt) \
679 [big_or_little_endian] opts($opt)
682 # Decide early whether we should run the test for this target.
683 if { [llength $opts(target)] > 0 } {
685 foreach targ $opts(target) {
686 if [istarget $targ] {
691 if { $targmatch == 0 } {
695 foreach targ $opts(notarget) {
696 if [istarget $targ] {
702 # It's meaningless to require an output-testing method when we
704 if { $opts(error) == "" } {
705 if {$opts(PROG) != ""} {
706 switch -- $opts(PROG) {
707 objdump { set program objdump }
708 nm { set program nm }
709 objcopy { set program objcopy }
710 readelf { set program readelf }
712 { perror "unrecognized program option $opts(PROG) in $file.d"
713 unresolved $subdir/$name
717 # Guess which program to run, by seeing which option was specified.
718 foreach p {objdump objcopy nm readelf} {
719 if {$opts($p) != ""} {
720 if {$program != ""} {
721 perror "ambiguous dump program in $file.d"
722 unresolved $subdir/$name
730 if { $program == "" && $opts(warning) == "" } {
731 perror "dump program unspecified in $file.d"
732 unresolved $subdir/$name
737 if { $opts(name) == "" } {
738 set testname "$subdir/$name"
740 set testname $opts(name)
743 if { $opts(source) == "" } {
744 set sourcefiles [list ${file}.s]
745 set asflags [list ""]
748 foreach sf $opts(source) {
749 if { [string match "/*" $sf] } {
750 lappend sourcefiles "$sf"
752 lappend sourcefiles "$srcdir/$subdir/$sf"
757 if { $opts(dump) == "" } {
760 set dfile $srcdir/$subdir/$opts(dump)
763 if { [string match "*--compress-debug-sections*" $opts(as)] \
764 && ![is_zlib_supported] } {
765 unsupported $testname
769 # Time to setup xfailures.
770 foreach targ $opts(xfail) {
774 # Assemble each file.
776 for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
777 set sourcefile [lindex $sourcefiles $i]
778 set sourceasflags [lindex $asflags $i]
780 set objfile "tmpdir/dump$i.o"
781 catch "exec rm -f $objfile" exec_output
782 lappend objfiles $objfile
783 set cmd "$AS $ASFLAGS $opts(as) $sourceasflags -o $objfile $sourcefile"
786 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
787 remote_upload host "ld.tmp"
788 set comp_output [prune_warnings [file_contents "ld.tmp"]]
789 remote_file host delete "ld.tmp"
790 remote_file build delete "ld.tmp"
792 if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
793 send_log "$comp_output\n"
794 verbose "$comp_output" 3
796 set exitstat "succeeded"
797 if { $cmdret != 0 } { set exitstat "failed" }
798 verbose -log "$exitstat with: <$comp_output>"
804 set expmsg $opts(error)
805 if { $opts(warning) != "" } {
806 if { $expmsg != "" } {
807 perror "$testname: mixing error and warning test-directives"
810 set expmsg $opts(warning)
813 # Perhaps link the file(s).
815 set objfile "tmpdir/dump"
816 catch "exec rm -f $objfile" exec_output
818 # Add -L$srcdir/$subdir so that the linker command can use
819 # linker scripts in the source directory.
820 set cmd "$LD $LDFLAGS -L$srcdir/$subdir \
821 $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
824 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
825 remote_upload host "ld.tmp"
826 set comp_output [file_contents "ld.tmp"]
827 remote_file host delete "ld.tmp"
828 remote_file build delete "ld.tmp"
829 set cmdret [lindex $cmdret 0]
831 if { $cmdret == 0 && $run_objcopy } {
833 set objfile "tmpdir/dump1"
834 remote_file host delete $objfile
836 # Note that we don't use OBJCOPYFLAGS here; any flags must be
837 # explicitly specified.
838 set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
841 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
842 remote_upload host "ld.tmp"
843 append comp_output [file_contents "ld.tmp"]
844 remote_file host delete "ld.tmp"
845 remote_file build delete "ld.tmp"
846 set cmdret [lindex $cmdret 0]
849 regsub "\n$" $comp_output "" comp_output
850 if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then {
851 set exitstat "succeeded"
852 if { $cmdret != 0 } { set exitstat "failed" }
853 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
854 send_log "$comp_output\n"
855 verbose "$comp_output" 3
857 if { ($expmsg == "") == ($comp_output == "") \
858 && [regexp $expmsg $comp_output] \
859 && (($cmdret == 0) == ($opts(error) == "")) } {
860 # We have the expected output from ld.
861 if { $opts(error) != "" || $program == "" } {
866 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
872 set objfile "tmpdir/dump0.o"
875 # We must not have expected failure if we get here.
876 if { $opts(error) != "" } {
881 set progopts1 $opts($program)
882 eval set progopts \$[string toupper $program]FLAGS
883 eval set binary \$[string toupper $program]
885 if { ![is_remote host] && [which $binary] == 0 } {
890 if { $progopts1 == "" } { set $progopts1 "-r" }
891 verbose "running $binary $progopts $progopts1" 3
893 # Objcopy, unlike the other two, won't send its output to stdout,
894 # so we have to run it specially.
895 set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
896 if { $program == "objcopy" } {
897 set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
900 # Ensure consistent sorting of symbols
901 if {[info exists env(LC_ALL)]} {
902 set old_lc_all $env(LC_ALL)
906 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
907 set cmdret [lindex $cmdret 0]
908 remote_upload host "ld.tmp"
909 set comp_output [prune_warnings [file_contents "ld.tmp"]]
910 remote_file host delete "ld.tmp"
911 remote_file build delete "ld.tmp"
912 if {[info exists old_lc_all]} {
913 set env(LC_ALL) $old_lc_all
917 if { $cmdret != 0 || $comp_output != "" } {
918 send_log "exited abnormally with $cmdret, output:$comp_output\n"
923 if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
924 if { [regexp_diff $dumpfile "${dfile}"] } then {
926 if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
933 proc slurp_options { file } {
934 # If options_regsub(foo) is set to {a b}, then the contents of a
935 # "#foo:" line will have regsub -all applied to replace a with b.
936 global options_regsub
938 if [catch { set f [open $file r] } x] {
939 #perror "couldn't open `$file': $x"
944 # whitespace expression
947 # whitespace is ignored anywhere except within the options list;
948 # option names are alphabetic plus underscore only.
949 set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$"
950 while { [gets $f line] != -1 } {
951 set line [string trim $line]
952 # Whitespace here is space-tab.
953 if [regexp $pat $line xxx opt_name opt_val] {
955 if [info exists options_regsub($opt_name)] {
956 set subst $options_regsub($opt_name)
957 regsub -all -- [lindex $subst 0] $opt_val [lindex $subst 1] \
960 lappend opt_array [list $opt_name $opt_val]
969 proc file_contents { filename } {
970 set file [open $filename r]
971 set contents [read $file]
976 proc set_file_contents { filename contents } {
977 set file [open $filename w]
978 puts $file "$contents"
982 # Create an archive using ar
984 proc ar_simple_create { ar aropts target objects } {
985 remote_file host delete $target
987 set exec_output [run_host_cmd "$ar" "$aropts -rc $target $objects"]
988 set exec_output [prune_warnings $exec_output]
990 if [string match "" $exec_output] then {
991 send_log "$exec_output\n"
998 # List contains test-items with 3 items followed by 2 lists, one item and
1001 # 1:ld/ar leading options, placed before object files
1002 # 2:ld/ar trailing options, placed after object files
1003 # 3:assembler options
1004 # 4:filenames of assembler files
1005 # 5:list of actions, options and expected outputs.
1006 # 6:name of output file
1007 # 7:compiler flags (optional)
1009 # Actions: { command command-line-options file-containg-expected-output-regexps }
1011 # objdump: Apply objdump options on result.
1012 # nm: Apply nm options on result.
1013 # readelf: Apply readelf options on result.
1014 # ld: Don't apply anything on result. Compare output during linking with
1015 # the file containing regexps (which is the second arg, not the third).
1016 # Note that this *must* be the first action if it is to be used at all;
1017 # in all other cases, any output from the linker during linking is
1018 # treated as a sign of an error and FAILs the test.
1020 proc run_ld_link_tests { ldtests } {
1035 foreach testitem $ldtests {
1036 set testname [lindex $testitem 0]
1038 if ![runtest_file_p $runtests $testname] then {
1042 set ld_options [lindex $testitem 1]
1043 set ld_after [lindex $testitem 2]
1044 set as_options [lindex $testitem 3]
1045 set src_files [lindex $testitem 4]
1046 set actions [lindex $testitem 5]
1047 set binfile tmpdir/[lindex $testitem 6]
1048 set cflags [lindex $testitem 7]
1055 # verbose -log "Testname is $testname"
1056 # verbose -log "ld_options is $ld_options"
1057 # verbose -log "ld_after is $ld_after"
1058 # verbose -log "as_options is $as_options"
1059 # verbose -log "src_files is $src_files"
1060 # verbose -log "actions is $actions"
1061 # verbose -log "binfile is $binfile"
1063 # Assemble each file in the test.
1064 foreach src_file $src_files {
1065 set fileroot "[file rootname [file tail $src_file]]"
1066 set objfile "tmpdir/$fileroot.o"
1067 lappend objfiles $objfile
1069 if { [file extension $src_file] == ".c" } {
1070 set as_file "tmpdir/$fileroot.s"
1071 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
1076 set as_file "$srcdir/$subdir/$src_file"
1078 if ![ld_assemble $as "$as_options $as_file" $objfile] {
1084 # Catch assembler errors.
1085 if { $is_unresolved } {
1086 unresolved $testname
1090 if { [regexp ".*\\.a$" $binfile] } {
1091 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
1094 } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
1096 set ld_output "$exec_output"
1100 foreach actionlist $actions {
1101 set action [lindex $actionlist 0]
1102 set progopts [lindex $actionlist 1]
1104 # There are actions where we run regexp_diff on the
1105 # output, and there are other actions (presumably).
1106 # Handling of the former look the same.
1110 { set dump_prog $objdump }
1112 { set dump_prog $nm }
1114 { set dump_prog $READELF }
1116 { set dump_prog "ld" }
1119 perror "Unrecognized action $action"
1125 if { $action == "ld" } {
1126 set regexpfile $progopts
1127 verbose "regexpfile is $srcdir/$subdir/$regexpfile"
1128 set_file_contents "tmpdir/ld.messages" "$ld_output"
1129 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
1130 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then {
1131 verbose "output is $ld_output" 2
1136 } elseif { !$maybe_failed && $dump_prog != "" } {
1137 set dumpfile [lindex $actionlist 2]
1138 set binary $dump_prog
1140 # Ensure consistent sorting of symbols
1141 if {[info exists env(LC_ALL)]} {
1142 set old_lc_all $env(LC_ALL)
1145 set cmd "$binary $progopts $binfile"
1146 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
1148 remote_upload host "ld.stderr"
1149 set comp_output [prune_warnings [file_contents "ld.stderr"]]
1150 remote_file host delete "ld.stderr"
1151 remote_file build delete "ld.stderr"
1153 if {[info exists old_lc_all]} {
1154 set env(LC_ALL) $old_lc_all
1159 if ![string match "" $comp_output] then {
1160 send_log "$comp_output\n"
1165 remote_upload host "dump.out"
1167 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1168 verbose "output is [file_contents "dump.out"]" 2
1170 remote_file build delete "dump.out"
1171 remote_file host delete "dump.out"
1174 remote_file build delete "dump.out"
1175 remote_file host delete "dump.out"
1180 if { $is_unresolved } {
1181 unresolved $testname
1182 } elseif { $maybe_failed || $failed } {
1190 # This definition is taken from an unreleased version of DejaGnu. Once
1191 # that version gets released, and has been out in the world for a few
1192 # months at least, it may be safe to delete this copy.
1193 if ![string length [info proc prune_warnings]] {
1195 # prune_warnings -- delete various system verbosities from TEXT
1198 # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
1200 # Sites with particular verbose os's may wish to override this in site.exp.
1202 proc prune_warnings { text } {
1203 # This is from sun4's. Do it for all machines for now.
1204 # The "\\1" is to try to preserve a "\n" but only if necessary.
1205 regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
1207 # It might be tempting to get carried away and delete blank lines, etc.
1208 # Just delete *exactly* what we're ask to, and that's it.
1213 # targets_to_xfail is a list of target triplets to be xfailed.
1214 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
1215 # and 3 optional items:
1218 # 2:assembler options
1219 # 3:filenames of source files
1220 # 4:name of output file
1222 # 6:compiler flags (optional)
1223 # 7:language (optional)
1224 # 8:linker warning (optional)
1226 proc run_ld_link_exec_tests { targets_to_xfail ldtests } {
1239 foreach testitem $ldtests {
1240 foreach target $targets_to_xfail {
1243 set testname [lindex $testitem 0]
1244 set ld_options [lindex $testitem 1]
1245 set as_options [lindex $testitem 2]
1246 set src_files [lindex $testitem 3]
1247 set binfile tmpdir/[lindex $testitem 4]
1248 set expfile [lindex $testitem 5]
1249 set cflags [lindex $testitem 6]
1250 set lang [lindex $testitem 7]
1251 set warning [lindex $testitem 8]
1255 # verbose -log "Testname is $testname"
1256 # verbose -log "ld_options is $ld_options"
1257 # verbose -log "as_options is $as_options"
1258 # verbose -log "src_files is $src_files"
1259 # verbose -log "binfile is $binfile"
1261 # Assemble each file in the test.
1262 foreach src_file $src_files {
1263 set fileroot "[file rootname [file tail $src_file]]"
1264 set objfile "tmpdir/$fileroot.o"
1265 lappend objfiles $objfile
1267 # We ignore warnings since some compilers may generate
1268 # incorrect section attributes and the assembler will warn
1270 if { [ string match "c++" $lang ] } {
1271 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1273 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1277 # We have to use $CC to build PIE and shared library.
1278 if { [ string match "c" $lang ] } {
1279 set link_proc ld_simple_link
1281 } elseif { [ string match "c++" $lang ] } {
1282 set link_proc ld_simple_link
1284 } elseif { [ string match "-shared" $ld_options ] \
1285 || [ string match "-pie" $ld_options ] } {
1286 set link_proc ld_simple_link
1289 set link_proc ld_link
1293 if ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
1299 # Check if exec_output is expected.
1300 if { $warning != "" } then {
1301 verbose -log "returned with: <$exec_output>, expected: <$warning>"
1302 if { [regexp $warning $exec_output] } then {
1309 if { $failed == 0 } {
1310 send_log "Running: $binfile > $binfile.out\n"
1311 verbose "Running: $binfile > $binfile.out"
1312 catch "exec $binfile > $binfile.out" exec_output
1314 if ![string match "" $exec_output] then {
1315 send_log "$exec_output\n"
1316 verbose "$exec_output" 1
1319 send_log "diff $binfile.out $srcdir/$subdir/$expfile\n"
1320 verbose "diff $binfile.out $srcdir/$subdir/$expfile"
1321 catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output
1322 set exec_output [prune_warnings $exec_output]
1324 if ![string match "" $exec_output] then {
1325 send_log "$exec_output\n"
1326 verbose "$exec_output" 1
1332 if { $failed != 0 } {
1341 # List contains test-items with 3 items followed by 2 lists, one item and
1342 # one optional item:
1344 # 1:ld or ar options
1346 # 3:filenames of source files
1347 # 4:action and options.
1348 # 5:name of output file
1349 # 6:language (optional)
1350 # 7:linker warnings (optional)
1353 # objdump: Apply objdump options on result. Compare with regex (last arg).
1354 # nm: Apply nm options on result. Compare with regex (last arg).
1355 # readelf: Apply readelf options on result. Compare with regex (last arg).
1357 proc run_cc_link_tests { ldtests } {
1371 foreach testitem $ldtests {
1372 set testname [lindex $testitem 0]
1373 set ldflags [lindex $testitem 1]
1374 set cflags [lindex $testitem 2]
1375 set src_files [lindex $testitem 3]
1376 set actions [lindex $testitem 4]
1377 set binfile tmpdir/[lindex $testitem 5]
1378 set lang [lindex $testitem 6]
1379 set warnings [lindex $testitem 7]
1384 # Compile each file in the test.
1385 foreach src_file $src_files {
1386 set fileroot "[file rootname [file tail $src_file]]"
1387 set objfile "tmpdir/$fileroot.o"
1388 lappend objfiles $objfile
1390 # We ignore warnings since some compilers may generate
1391 # incorrect section attributes and the assembler will warn
1393 if { [ string match "c++" $lang ] } {
1394 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1396 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1400 # Clear error and warning counts.
1403 if { [ string match "c++" $lang ] } {
1409 if { [regexp ".*\\.a$" $binfile] } {
1410 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
1417 if { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
1423 # Check if exec_output is expected.
1424 if { $warnings != "" } then {
1425 verbose -log "returned with: <$exec_output>, expected: <$warnings>"
1426 if { [regexp $warnings $exec_output] } then {
1433 if { $failed == 1 } {
1438 if { $failed == 0 } {
1439 foreach actionlist $actions {
1440 set action [lindex $actionlist 0]
1441 set progopts [lindex $actionlist 1]
1443 # There are actions where we run regexp_diff on the
1444 # output, and there are other actions (presumably).
1445 # Handling of the former look the same.
1449 { set dump_prog $objdump }
1451 { set dump_prog $nm }
1453 { set dump_prog $READELF }
1456 perror "Unrecognized action $action"
1462 if { $dump_prog != "" } {
1463 set dumpfile [lindex $actionlist 2]
1464 set binary $dump_prog
1466 # Ensure consistent sorting of symbols
1467 if {[info exists env(LC_ALL)]} {
1468 set old_lc_all $env(LC_ALL)
1471 set cmd "$binary $progopts $binfile > dump.out"
1473 catch "exec $cmd" comp_output
1474 if {[info exists old_lc_all]} {
1475 set env(LC_ALL) $old_lc_all
1479 set comp_output [prune_warnings $comp_output]
1481 if ![string match "" $comp_output] then {
1482 send_log "$comp_output\n"
1487 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1488 verbose "output is [file_contents "dump.out"]" 2
1495 if { $failed != 0 } {
1497 } else { if { $is_unresolved == 0 } {
1502 # Catch action errors.
1503 if { $is_unresolved != 0 } {
1504 unresolved $testname
1510 # Returns true if --gc-sections is supported on the target.
1512 proc check_gc_sections_available { } {
1513 global gc_sections_available_saved
1516 if {![info exists gc_sections_available_saved]} {
1517 # Some targets don't support gc-sections despite whatever's
1518 # advertised by ld's options.
1519 if { [istarget arc-*-*]
1520 || [istarget d30v-*-*]
1521 || [istarget dlx-*-*]
1522 || [istarget i960-*-*]
1523 || [istarget or32-*-*]
1524 || [istarget pj*-*-*]
1525 || [istarget alpha-*-*]
1526 || [istarget hppa*64-*-*]
1527 || [istarget i370-*-*]
1528 || [istarget i860-*-*]
1529 || [istarget ia64-*-*]
1530 || [istarget mep-*-*]
1531 || [istarget mn10200-*-*]
1532 || [istarget *-*-cygwin]
1533 || [istarget *-*-mingw*] } {
1534 set gc_sections_available_saved 0
1538 # elf2flt uses -q (--emit-relocs), which is incompatible with
1540 if { [board_info target exists ldflags]
1541 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1542 set gc_sections_available_saved 0
1546 # Check if the ld used by gcc supports --gc-sections.
1547 # FIXME: this test is useless since ld --help always says
1548 # --gc-sections is available
1549 set ld_output [remote_exec host $ld "--help"]
1550 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1551 set gc_sections_available_saved 1
1553 set gc_sections_available_saved 0
1556 return $gc_sections_available_saved
1559 # Returns true if -shared is supported on the target
1560 # Only used and accurate for ELF targets at the moment
1562 proc check_shared_lib_support { } {
1563 if {![istarget aarch64*-*-elf]
1564 && ![istarget arc-*-*]
1565 && ![istarget arm*-*-elf]
1566 && ![istarget avr-*-*]
1567 && ![istarget cr16-*-*]
1568 && ![istarget cris*-*-elf]
1569 && ![istarget crx-*-*]
1570 && ![istarget d10v-*-*]
1571 && ![istarget d30v-*-*]
1572 && ![istarget dlx-*-*]
1573 && ![istarget epiphany-*-*]
1574 && ![istarget fr30-*-*]
1575 && ![istarget frv-*-*]
1576 && ![istarget h8300-*-*]
1577 && ![istarget i860-*-*]
1578 && ![istarget i960-*-*]
1579 && ![istarget ip2k-*-*]
1580 && ![istarget iq2000-*-*]
1581 && ![istarget lm32-*-*]
1582 && ![istarget m32c-*-*]
1583 && ![istarget m32r-*-*]
1584 && ![istarget m6811-*-*]
1585 && ![istarget m6812-*-*]
1586 && ![istarget m68hc1*-*-*]
1587 && ![istarget mcore*-*-*]
1588 && ![istarget mep-*-*]
1589 && ![istarget microblaze-*-*]
1590 && ![istarget mn10200-*-*]
1591 && ![istarget moxie-*-*]
1592 && ![istarget msp430-*-*]
1593 && ![istarget mt-*-*]
1594 && ![istarget openrisc-*-*]
1595 && ![istarget or32-*-*]
1596 && ![istarget pj-*-*]
1597 && ![istarget rx-*-*]
1598 && ![istarget spu-*-*]
1599 && ![istarget v850*-*-*]
1600 && ![istarget xstormy16-*-*]
1601 && ![istarget *-*-irix*]
1602 && ![istarget *-*-rtems] } {
1608 # Returns true if the target ld supports the plugin API.
1609 proc check_plugin_api_available { } {
1610 global plugin_api_available_saved
1612 if {![info exists plugin_api_available_saved]} {
1613 # Check if the ld used by gcc supports --plugin.
1614 set ld_output [remote_exec host $ld "--help"]
1615 if { [ string first "-plugin" $ld_output ] >= 0 } {
1616 set plugin_api_available_saved 1
1618 set plugin_api_available_saved 0
1621 return $plugin_api_available_saved
1624 # Returns true if the target compiler supports LTO
1625 proc check_lto_available { } {
1626 global lto_available_saved
1628 if {![info exists lto_available_saved]} {
1629 # Check if gcc supports -flto -fuse-linker-plugin
1630 if { [which $CC] == 0 } {
1631 set lto_available_saved 0
1635 set src ${basename}[pid].c
1636 set output ${basename}[pid].so
1637 set f [open $src "w"]
1640 set status [remote_exec host $CC "-shared -B[pwd]/tmpdir/ld/ -flto -fuse-linker-plugin $src -o $output"]
1641 if { [lindex $status 0] == 0 } {
1642 set lto_available_saved 1
1644 set lto_available_saved 0
1649 return $lto_available_saved
1652 # Check if the assembler supports CFI statements.
1654 proc check_as_cfi { } {
1655 global check_as_cfi_result
1657 if [info exists check_as_cfi_result] {
1658 return $check_as_cfi_result
1660 set as_file "tmpdir/check_as_cfi.s"
1661 set as_fh [open $as_file w 0666]
1662 puts $as_fh "# Generated file. DO NOT EDIT"
1663 puts $as_fh "\t.cfi_startproc"
1664 puts $as_fh "\t.cfi_endproc"
1666 remote_download host $as_file
1667 verbose -log "Checking CFI support:"
1668 rename "perror" "check_as_cfi_perror"
1669 proc perror { args } { }
1670 set success [ld_assemble $as $as_file "/dev/null"]
1672 rename "check_as_cfi_perror" "perror"
1673 #remote_file host delete $as_file
1674 set check_as_cfi_result $success
1678 # Provide virtual target "cfi" for targets supporting CFI.
1680 rename "istarget" "istarget_ld"
1681 proc istarget { target } {
1682 if {$target == "cfi"} {
1683 return [check_as_cfi]
1685 return [istarget_ld $target]