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 if [board_info [target_info name] exists ldflags] {
203 append flags " [board_info [target_info name] ldflags]"
206 remote_file host delete $target
208 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"]
211 # Link a program using ld, without including any libraries.
213 proc default_ld_simple_link { ld target objects } {
218 if [is_endian_output_format $objects] then {
219 set flags [big_or_little_endian]
224 if [board_info [target_info name] exists ldflags] {
225 append flags " [board_info [target_info name] ldflags]"
228 # If we are compiling with gcc, we want to add gcc_ld_flag to
229 # flags. Rather than determine this in some complex way, we guess
230 # based on the name of the compiler.
232 set ldparm [string first " " $ld]
234 if { $ldparm > 0 } then {
235 set ldflags [string range $ld $ldparm end]
236 set ldexe [string range $ld 0 $ldparm]
239 set ldexe [string replace $ldexe 0 [string last "/" $ldexe] ""]
240 if {[string match "*gcc*" $ldexe] || [string match "*++*" $ldexe]} then {
241 set ldflags "$gcc_ld_flag $ldflags"
244 remote_file host delete $target
246 set exec_output [run_host_cmd "$ld" "$ldflags $flags -o $target $objects"]
247 set exec_output [prune_warnings $exec_output]
249 # We don't care if we get a warning about a non-existent start
250 # symbol, since the default linker script might use ENTRY.
251 regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
253 if [string match "" $exec_output] then {
260 # Compile an object using cc.
262 proc default_ld_compile { cc source object } {
271 if {[llength $cc_prog] > 1} then {
272 set cc_prog [lindex $cc_prog 0]
274 if {![is_remote host] && [which $cc_prog] == 0} then {
275 perror "$cc_prog does not exist"
279 remote_file build delete "$object"
280 remote_file host delete "$object"
282 set flags "-I$srcdir/$subdir"
284 # If we are compiling with gcc, we want to add gcc_gas_flag to
285 # flags. Rather than determine this in some complex way, we guess
286 # based on the name of the compiler.
288 set ccparm [string first " " $cc]
290 if { $ccparm > 0 } then {
291 set ccflags [string range $cc $ccparm end]
292 set ccexe [string range $cc 0 $ccparm]
295 set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
296 if {[string match "*gcc*" $ccexe] || [string match "*++*" $ccexe]} then {
297 set flags "$gcc_gas_flag $flags"
300 if {[string match "*++*" $ccexe]} {
301 set flags "$flags $CXXFLAGS"
303 set flags "$flags $CFLAGS"
306 if [board_info [target_info name] exists cflags] {
307 append flags " [board_info [target_info name] cflags]"
310 if [board_info [target_info name] exists multilib_flags] {
311 append flags " [board_info [target_info name] multilib_flags]"
314 verbose -log "$cc $flags $ccflags -c $source -o $object"
316 set status [remote_exec host [concat sh -c [list "$cc $flags $ccflags -c $source -o $object 2>&1"]] "" "/dev/null" "ld.tmp"]
317 remote_upload host "ld.tmp"
318 set exec_output [file_contents "ld.tmp"]
319 remote_file build delete "ld.tmp"
320 remote_file host delete "ld.tmp"
321 set exec_output [prune_warnings $exec_output]
322 if [string match "" $exec_output] then {
323 if {![file exists $object]} then {
324 regexp ".*/(\[^/\]*)$" $source all dobj
325 regsub "\\.c" $dobj ".o" realobj
326 verbose "looking for $realobj"
327 if {[remote_file host exists $realobj]} then {
328 verbose -log "mv $realobj $object"
329 remote_upload "$realobj" "$object"
331 perror "$object not found after compilation"
337 verbose -log "$exec_output"
338 perror "$source: compilation failed"
345 proc default_ld_assemble { as in_flags source object } {
351 if ![info exists ASFLAGS] { set ASFLAGS "" }
353 set flags "[big_or_little_endian] -I$srcdir/$subdir"
354 set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"]
355 set exec_output [prune_warnings $exec_output]
356 if [string match "" $exec_output] then {
359 perror "$source: assembly failed"
364 # Run nm on a file, putting the result in the array nm_output.
366 proc default_ld_nm { nm nmflags object } {
371 if {[info exists nm_output]} {
375 if ![info exists NMFLAGS] { set NMFLAGS "" }
377 # Ensure consistent sorting of symbols
378 if {[info exists env(LC_ALL)]} {
379 set old_lc_all $env(LC_ALL)
383 verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
385 set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
386 if {[info exists old_lc_all]} {
387 set env(LC_ALL) $old_lc_all
391 remote_upload host "ld.stderr"
392 remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
393 set exec_output [prune_warnings [file_contents "ld.stderr"]]
394 remote_file host delete "ld.stderr"
395 remote_file build delete "ld.stderr"
396 if [string match "" $exec_output] then {
397 set file [open tmpdir/nm.out r]
398 while { [gets $file line] != -1 } {
400 if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
401 set name [string trimleft $name "_"]
402 verbose "Setting nm_output($name) to 0x$value" 2
403 set nm_output($name) 0x$value
409 verbose -log "$exec_output"
410 perror "$object: nm failed"
415 # Define various symbols needed when not linking against all
417 proc ld_simple_link_defsyms {} {
419 set flags "--defsym __stack_chk_fail=0"
421 # ARM targets call __gccmain
422 if {[istarget arm*-*-*]} {
423 append flags " --defsym __gccmain=0"
426 # Windows targets need __main, prefixed with underscore.
427 if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
428 append flags " --defsym ___main=0"
431 # PowerPC EABI code calls __eabi.
432 if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
433 append flags " --defsym __eabi=0"
436 # mn10200 code calls __truncsipsi2_d0_d2.
437 if {[istarget mn10200*-*-*]} then {
438 append flags " --defsym __truncsipsi2_d0_d2=0"
441 # m6811/m6812 code has references to soft registers.
442 if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
443 append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
444 append flags " --defsym _.d3=0 --defsym _.d4=0"
445 append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
448 # Some OpenBSD targets have ProPolice and reference __guard and
449 # __stack_smash_handler.
450 if [istarget *-*-openbsd*] {
451 append flags " --defsym __guard=0"
452 append flags " --defsym __stack_smash_handler=0"
458 # run_dump_test FILE (optional:) EXTRA_OPTIONS
459 # Copied from gas testsuite, tweaked and further extended.
461 # Assemble a .s file, then run some utility on it and check the output.
463 # There should be an assembly language file named FILE.s in the test
464 # suite directory, and a pattern file called FILE.d. `run_dump_test'
465 # will assemble FILE.s, run some tool like `objdump', `objcopy', or
466 # `nm' on the .o file to produce textual output, and then analyze that
467 # with regexps. The FILE.d file specifies what program to run, and
468 # what to expect in its output.
470 # The FILE.d file begins with zero or more option lines, which specify
471 # flags to pass to the assembler, the program to run to dump the
472 # assembler's output, and the options it wants. The option lines have
477 # OPTION is the name of some option, like "name" or "objdump", and
478 # VALUE is OPTION's value. The valid options are described below.
479 # Whitespace is ignored everywhere, except within VALUE. The option
480 # list ends with the first line that doesn't match the above syntax
481 # (hmm, not great for error detection).
483 # The optional EXTRA_OPTIONS argument to `run_dump_test' is a list of
484 # two-element lists. The first element of each is an option name, and
485 # the second additional arguments to be added on to the end of the
486 # option list as given in FILE.d. (If omitted, no additional options
489 # The interesting options are:
492 # The name of this test, passed to DejaGNU's `pass' and `fail'
493 # commands. If omitted, this defaults to FILE, the root of the
494 # .s and .d files' names.
497 # When assembling, pass FLAGS to the assembler.
498 # If assembling several files, you can pass different assembler
499 # options in the "source" directives. See below.
502 # Link assembled files using FLAGS, in the order of the "source"
503 # directives, when using multiple files.
505 # ld_after_inputfiles: FLAGS
506 # Similar to "ld", but put after all input files.
508 # objcopy_linked_file: FLAGS
509 # Run objcopy on the linked file with the specified flags.
510 # This lets you transform the linked file using objcopy, before the
511 # result is analyzed by an analyzer program specified below (which
512 # may in turn *also* be objcopy).
515 # The name of the program to run to analyze the .o file produced
516 # by the assembler or the linker output. This can be omitted;
517 # run_dump_test will guess which program to run by seeing which of
518 # the flags options below is present.
523 # Use the specified program to analyze the assembler or linker
524 # output file, and pass it FLAGS, in addition to the output name.
525 # Note that they are run with LC_ALL=C in the environment to give
526 # consistent sorting of symbols.
528 # source: SOURCE [FLAGS]
529 # Assemble the file SOURCE.s using the flags in the "as" directive
530 # and the (optional) FLAGS. If omitted, the source defaults to
532 # This is useful if several .d files want to share a .s file.
533 # More than one "source" directive can be given, which is useful
534 # when testing linking.
537 # Match against DUMP.d. If omitted, this defaults to FILE.d. This
538 # is useful if several .d files differ by options only. Options are
539 # always read from FILE.d.
542 # The test is expected to fail on TARGET. This may occur more than
546 # Only run the test for TARGET. This may occur more than once; the
547 # target being tested must match at least one. You may provide target
548 # name "cfi" for any target supporting the CFI statements.
551 # Do not run the test for TARGET. This may occur more than once;
552 # the target being tested must not match any of them.
555 # An error with message matching REGEX must be emitted for the test
556 # to pass. The PROG, objdump, nm and objcopy options have no
557 # meaning and need not supplied if this is present. Multiple "error"
558 # directives append to the expected linker error message.
561 # Expect a linker warning matching REGEX. It is an error to issue
562 # both "error" and "warning". Multiple "warning" directives
563 # append to the expected linker warning message.
565 # Each option may occur at most once unless otherwise mentioned.
567 # After the option lines come regexp lines. `run_dump_test' calls
568 # `regexp_diff' to compare the output of the dumping tool against the
569 # regexps in FILE.d. `regexp_diff' is defined in binutils-common.exp;
570 # see further comments there.
572 proc run_dump_test { name {extra_options {}} } {
574 global OBJDUMP NM AS OBJCOPY READELF LD
575 global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
576 global host_triplet runtests
579 if [string match "*/*" $name] {
581 set name [file tail $name]
583 set file "$srcdir/$subdir/$name"
586 if ![runtest_file_p $runtests $name] then {
590 set opt_array [slurp_options "${file}.d"]
591 if { $opt_array == -1 } {
592 perror "error reading options from $file.d"
593 unresolved $subdir/$name
596 set dumpfile tmpdir/dump.out
601 set opts(ld_after_inputfiles) {}
604 set opts(notarget) {}
615 set opts(objcopy_linked_file) {}
617 foreach i $opt_array {
618 set opt_name [lindex $i 0]
619 set opt_val [lindex $i 1]
620 if ![info exists opts($opt_name)] {
621 perror "unknown option $opt_name in file $file.d"
622 unresolved $subdir/$name
626 switch -- $opt_name {
633 # Move any source-specific as-flags to a separate list to
634 # simplify processing.
635 if { [llength $opt_val] > 1 } {
636 lappend asflags [lrange $opt_val 1 end]
637 set opt_val [lindex $opt_val 0]
643 if [string length $opts($opt_name)] {
644 perror "option $opt_name multiply set in $file.d"
645 unresolved $subdir/$name
649 # A single "# ld:" with no options should do the right thing.
650 if { $opt_name == "ld" } {
653 # Likewise objcopy_linked_file.
654 if { $opt_name == "objcopy_linked_file" } {
659 if { $opt_name == "as" || $opt_name == "ld" } {
660 set opt_val [subst $opt_val]
663 # Append differently whether it's a message (without space) or
664 # an option or list (with space).
665 switch -- $opt_name {
668 append opts($opt_name) $opt_val
671 set opts($opt_name) [concat $opts($opt_name) $opt_val]
676 foreach i $extra_options {
677 set opt_name [lindex $i 0]
678 set opt_val [lindex $i 1]
679 if ![info exists opts($opt_name)] {
680 perror "unknown option $opt_name given in extra_opts"
681 unresolved $subdir/$name
684 # Add extra option to end of existing option, adding space
686 if { ![regexp "warning|error" $opt_name]
687 && [string length $opts($opt_name)] } {
688 append opts($opt_name) " "
690 append opts($opt_name) $opt_val
693 foreach opt { as ld } {
694 regsub {\[big_or_little_endian\]} $opts($opt) \
695 [big_or_little_endian] opts($opt)
698 # Decide early whether we should run the test for this target.
699 if { [llength $opts(target)] > 0 } {
701 foreach targ $opts(target) {
702 if [istarget $targ] {
707 if { $targmatch == 0 } {
711 foreach targ $opts(notarget) {
712 if [istarget $targ] {
718 # It's meaningless to require an output-testing method when we
720 if { $opts(error) == "" } {
721 if {$opts(PROG) != ""} {
722 switch -- $opts(PROG) {
723 objdump { set program objdump }
724 nm { set program nm }
725 objcopy { set program objcopy }
726 readelf { set program readelf }
728 { perror "unrecognized program option $opts(PROG) in $file.d"
729 unresolved $subdir/$name
733 # Guess which program to run, by seeing which option was specified.
734 foreach p {objdump objcopy nm readelf} {
735 if {$opts($p) != ""} {
736 if {$program != ""} {
737 perror "ambiguous dump program in $file.d"
738 unresolved $subdir/$name
746 if { $program == "" && $opts(warning) == "" } {
747 perror "dump program unspecified in $file.d"
748 unresolved $subdir/$name
753 if { $opts(name) == "" } {
754 set testname "$subdir/$name"
756 set testname $opts(name)
759 if { $opts(source) == "" } {
760 set sourcefiles [list ${file}.s]
761 set asflags [list ""]
764 foreach sf $opts(source) {
765 if { [string match "/*" $sf] } {
766 lappend sourcefiles "$sf"
768 lappend sourcefiles "$srcdir/$subdir/$sf"
773 if { $opts(dump) == "" } {
776 set dfile $srcdir/$subdir/$opts(dump)
779 if { [string match "*--compress-debug-sections*" $opts(as)] \
780 && ![is_zlib_supported] } {
781 unsupported $testname
785 # Time to setup xfailures.
786 foreach targ $opts(xfail) {
790 # Assemble each file.
792 for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
793 set sourcefile [lindex $sourcefiles $i]
794 set sourceasflags [lindex $asflags $i]
796 set objfile "tmpdir/dump$i.o"
797 catch "exec rm -f $objfile" exec_output
798 lappend objfiles $objfile
799 set cmd "$AS $ASFLAGS $opts(as) $sourceasflags -o $objfile $sourcefile"
802 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
803 remote_upload host "ld.tmp"
804 set comp_output [prune_warnings [file_contents "ld.tmp"]]
805 remote_file host delete "ld.tmp"
806 remote_file build delete "ld.tmp"
808 if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
809 send_log "$comp_output\n"
810 verbose "$comp_output" 3
812 set exitstat "succeeded"
813 if { $cmdret != 0 } { set exitstat "failed" }
814 verbose -log "$exitstat with: <$comp_output>"
820 set expmsg $opts(error)
821 if { $opts(warning) != "" } {
822 if { $expmsg != "" } {
823 perror "$testname: mixing error and warning test-directives"
826 set expmsg $opts(warning)
829 # Perhaps link the file(s).
831 set objfile "tmpdir/dump"
832 catch "exec rm -f $objfile" exec_output
834 # Add -L$srcdir/$subdir so that the linker command can use
835 # linker scripts in the source directory.
836 set cmd "$LD $LDFLAGS -L$srcdir/$subdir \
837 $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
840 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
841 remote_upload host "ld.tmp"
842 set comp_output [file_contents "ld.tmp"]
843 remote_file host delete "ld.tmp"
844 remote_file build delete "ld.tmp"
845 set cmdret [lindex $cmdret 0]
847 if { $cmdret == 0 && $run_objcopy } {
849 set objfile "tmpdir/dump1"
850 remote_file host delete $objfile
852 # Note that we don't use OBJCOPYFLAGS here; any flags must be
853 # explicitly specified.
854 set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
857 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
858 remote_upload host "ld.tmp"
859 append comp_output [file_contents "ld.tmp"]
860 remote_file host delete "ld.tmp"
861 remote_file build delete "ld.tmp"
862 set cmdret [lindex $cmdret 0]
865 regsub "\n$" $comp_output "" comp_output
866 if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then {
867 set exitstat "succeeded"
868 if { $cmdret != 0 } { set exitstat "failed" }
869 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
870 send_log "$comp_output\n"
871 verbose "$comp_output" 3
873 if { ($expmsg == "") == ($comp_output == "") \
874 && [regexp $expmsg $comp_output] \
875 && (($cmdret == 0) == ($opts(error) == "")) } {
876 # We have the expected output from ld.
877 if { $opts(error) != "" || $program == "" } {
882 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
888 set objfile "tmpdir/dump0.o"
891 # We must not have expected failure if we get here.
892 if { $opts(error) != "" } {
897 set progopts1 $opts($program)
898 eval set progopts \$[string toupper $program]FLAGS
899 eval set binary \$[string toupper $program]
901 if { ![is_remote host] && [which $binary] == 0 } {
906 if { $progopts1 == "" } { set $progopts1 "-r" }
907 verbose "running $binary $progopts $progopts1" 3
909 # Objcopy, unlike the other two, won't send its output to stdout,
910 # so we have to run it specially.
911 set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
912 if { $program == "objcopy" } {
913 set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
916 # Ensure consistent sorting of symbols
917 if {[info exists env(LC_ALL)]} {
918 set old_lc_all $env(LC_ALL)
922 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
923 set cmdret [lindex $cmdret 0]
924 remote_upload host "ld.tmp"
925 set comp_output [prune_warnings [file_contents "ld.tmp"]]
926 remote_file host delete "ld.tmp"
927 remote_file build delete "ld.tmp"
928 if {[info exists old_lc_all]} {
929 set env(LC_ALL) $old_lc_all
933 if { $cmdret != 0 || $comp_output != "" } {
934 send_log "exited abnormally with $cmdret, output:$comp_output\n"
939 if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
940 if { [regexp_diff $dumpfile "${dfile}"] } then {
942 if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
949 proc slurp_options { file } {
950 # If options_regsub(foo) is set to {a b}, then the contents of a
951 # "#foo:" line will have regsub -all applied to replace a with b.
952 global options_regsub
954 if [catch { set f [open $file r] } x] {
955 #perror "couldn't open `$file': $x"
960 # whitespace expression
963 # whitespace is ignored anywhere except within the options list;
964 # option names are alphabetic plus underscore only.
965 set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$"
966 while { [gets $f line] != -1 } {
967 set line [string trim $line]
968 # Whitespace here is space-tab.
969 if [regexp $pat $line xxx opt_name opt_val] {
971 if [info exists options_regsub($opt_name)] {
972 set subst $options_regsub($opt_name)
973 regsub -all -- [lindex $subst 0] $opt_val [lindex $subst 1] \
976 lappend opt_array [list $opt_name $opt_val]
985 proc file_contents { filename } {
986 set file [open $filename r]
987 set contents [read $file]
992 proc set_file_contents { filename contents } {
993 set file [open $filename w]
994 puts $file "$contents"
998 # Create an archive using ar
1000 proc ar_simple_create { ar aropts target objects } {
1001 remote_file host delete $target
1003 set exec_output [run_host_cmd "$ar" "$aropts -rc $target $objects"]
1004 set exec_output [prune_warnings $exec_output]
1006 if [string match "" $exec_output] then {
1007 send_log "$exec_output\n"
1014 # List contains test-items with 3 items followed by 2 lists, one item and
1015 # one optional item:
1017 # 1:ld/ar leading options, placed before object files
1018 # 2:ld/ar trailing options, placed after object files
1019 # 3:assembler options
1020 # 4:filenames of assembler files
1021 # 5:list of actions, options and expected outputs.
1022 # 6:name of output file
1023 # 7:compiler flags (optional)
1025 # Actions: { command command-line-options file-containg-expected-output-regexps }
1027 # objdump: Apply objdump options on result.
1028 # nm: Apply nm options on result.
1029 # readelf: Apply readelf options on result.
1030 # ld: Don't apply anything on result. Compare output during linking with
1031 # the file containing regexps (which is the second arg, not the third).
1032 # Note that this *must* be the first action if it is to be used at all;
1033 # in all other cases, any output from the linker during linking is
1034 # treated as a sign of an error and FAILs the test.
1036 proc run_ld_link_tests { ldtests } {
1051 foreach testitem $ldtests {
1052 set testname [lindex $testitem 0]
1054 if ![runtest_file_p $runtests $testname] then {
1058 set ld_options [lindex $testitem 1]
1059 set ld_after [lindex $testitem 2]
1060 set as_options [lindex $testitem 3]
1061 set src_files [lindex $testitem 4]
1062 set actions [lindex $testitem 5]
1063 set binfile tmpdir/[lindex $testitem 6]
1064 set cflags [lindex $testitem 7]
1071 # verbose -log "Testname is $testname"
1072 # verbose -log "ld_options is $ld_options"
1073 # verbose -log "ld_after is $ld_after"
1074 # verbose -log "as_options is $as_options"
1075 # verbose -log "src_files is $src_files"
1076 # verbose -log "actions is $actions"
1077 # verbose -log "binfile is $binfile"
1079 # Assemble each file in the test.
1080 foreach src_file $src_files {
1081 set fileroot "[file rootname [file tail $src_file]]"
1082 set objfile "tmpdir/$fileroot.o"
1083 lappend objfiles $objfile
1085 if { [file extension $src_file] == ".c" } {
1086 set as_file "tmpdir/$fileroot.s"
1087 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
1092 set as_file "$srcdir/$subdir/$src_file"
1094 if ![ld_assemble $as "$as_options $as_file" $objfile] {
1100 # Catch assembler errors.
1101 if { $is_unresolved } {
1102 unresolved $testname
1106 if { [regexp ".*\\.a$" $binfile] } {
1107 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
1110 } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
1112 set ld_output "$exec_output"
1116 foreach actionlist $actions {
1117 set action [lindex $actionlist 0]
1118 set progopts [lindex $actionlist 1]
1120 # There are actions where we run regexp_diff on the
1121 # output, and there are other actions (presumably).
1122 # Handling of the former look the same.
1126 { set dump_prog $objdump }
1128 { set dump_prog $nm }
1130 { set dump_prog $READELF }
1132 { set dump_prog "ld" }
1135 perror "Unrecognized action $action"
1141 if { $action == "ld" } {
1142 set regexpfile $progopts
1143 verbose "regexpfile is $srcdir/$subdir/$regexpfile"
1144 set_file_contents "tmpdir/ld.messages" "$ld_output"
1145 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
1146 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then {
1147 verbose "output is $ld_output" 2
1152 } elseif { !$maybe_failed && $dump_prog != "" } {
1153 set dumpfile [lindex $actionlist 2]
1154 set binary $dump_prog
1156 # Ensure consistent sorting of symbols
1157 if {[info exists env(LC_ALL)]} {
1158 set old_lc_all $env(LC_ALL)
1161 set cmd "$binary $progopts $binfile"
1162 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
1164 remote_upload host "ld.stderr"
1165 set comp_output [prune_warnings [file_contents "ld.stderr"]]
1166 remote_file host delete "ld.stderr"
1167 remote_file build delete "ld.stderr"
1169 if {[info exists old_lc_all]} {
1170 set env(LC_ALL) $old_lc_all
1175 if ![string match "" $comp_output] then {
1176 send_log "$comp_output\n"
1181 remote_upload host "dump.out"
1183 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1184 verbose "output is [file_contents "dump.out"]" 2
1186 remote_file build delete "dump.out"
1187 remote_file host delete "dump.out"
1190 remote_file build delete "dump.out"
1191 remote_file host delete "dump.out"
1196 if { $is_unresolved } {
1197 unresolved $testname
1198 } elseif { $maybe_failed || $failed } {
1206 # This definition is taken from an unreleased version of DejaGnu. Once
1207 # that version gets released, and has been out in the world for a few
1208 # months at least, it may be safe to delete this copy.
1209 if ![string length [info proc prune_warnings]] {
1211 # prune_warnings -- delete various system verbosities from TEXT
1214 # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
1216 # Sites with particular verbose os's may wish to override this in site.exp.
1218 proc prune_warnings { text } {
1219 # This is from sun4's. Do it for all machines for now.
1220 # The "\\1" is to try to preserve a "\n" but only if necessary.
1221 regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
1223 # It might be tempting to get carried away and delete blank lines, etc.
1224 # Just delete *exactly* what we're ask to, and that's it.
1229 # targets_to_xfail is a list of target triplets to be xfailed.
1230 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
1231 # and 3 optional items:
1234 # 2:assembler options
1235 # 3:filenames of source files
1236 # 4:name of output file
1238 # 6:compiler flags (optional)
1239 # 7:language (optional)
1240 # 8:linker warning (optional)
1242 proc run_ld_link_exec_tests { targets_to_xfail ldtests } {
1255 foreach testitem $ldtests {
1256 foreach target $targets_to_xfail {
1259 set testname [lindex $testitem 0]
1260 set ld_options [lindex $testitem 1]
1261 set as_options [lindex $testitem 2]
1262 set src_files [lindex $testitem 3]
1263 set binfile tmpdir/[lindex $testitem 4]
1264 set expfile [lindex $testitem 5]
1265 set cflags [lindex $testitem 6]
1266 set lang [lindex $testitem 7]
1267 set warning [lindex $testitem 8]
1271 # verbose -log "Testname is $testname"
1272 # verbose -log "ld_options is $ld_options"
1273 # verbose -log "as_options is $as_options"
1274 # verbose -log "src_files is $src_files"
1275 # verbose -log "binfile is $binfile"
1277 # Assemble each file in the test.
1278 foreach src_file $src_files {
1279 set fileroot "[file rootname [file tail $src_file]]"
1280 set objfile "tmpdir/$fileroot.o"
1281 lappend objfiles $objfile
1283 # We ignore warnings since some compilers may generate
1284 # incorrect section attributes and the assembler will warn
1286 if { [ string match "c++" $lang ] } {
1287 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1289 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1293 # We have to use $CC to build PIE and shared library.
1294 if { [ string match "c" $lang ] } {
1295 set link_proc ld_simple_link
1297 } elseif { [ string match "c++" $lang ] } {
1298 set link_proc ld_simple_link
1300 } elseif { [ string match "-shared" $ld_options ] \
1301 || [ string match "-pie" $ld_options ] } {
1302 set link_proc ld_simple_link
1305 set link_proc ld_link
1309 if ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
1315 # Check if exec_output is expected.
1316 if { $warning != "" } then {
1317 verbose -log "returned with: <$exec_output>, expected: <$warning>"
1318 if { [regexp $warning $exec_output] } then {
1325 if { $failed == 0 } {
1326 send_log "Running: $binfile > $binfile.out\n"
1327 verbose "Running: $binfile > $binfile.out"
1328 catch "exec $binfile > $binfile.out" exec_output
1330 if ![string match "" $exec_output] then {
1331 send_log "$exec_output\n"
1332 verbose "$exec_output" 1
1335 send_log "diff $binfile.out $srcdir/$subdir/$expfile\n"
1336 verbose "diff $binfile.out $srcdir/$subdir/$expfile"
1337 catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output
1338 set exec_output [prune_warnings $exec_output]
1340 if ![string match "" $exec_output] then {
1341 send_log "$exec_output\n"
1342 verbose "$exec_output" 1
1348 if { $failed != 0 } {
1357 # List contains test-items with 3 items followed by 2 lists, one item and
1358 # one optional item:
1360 # 1:ld or ar options
1362 # 3:filenames of source files
1363 # 4:action and options.
1364 # 5:name of output file
1365 # 6:language (optional)
1366 # 7:linker warnings (optional)
1369 # objdump: Apply objdump options on result. Compare with regex (last arg).
1370 # nm: Apply nm options on result. Compare with regex (last arg).
1371 # readelf: Apply readelf options on result. Compare with regex (last arg).
1373 proc run_cc_link_tests { ldtests } {
1387 foreach testitem $ldtests {
1388 set testname [lindex $testitem 0]
1389 set ldflags [lindex $testitem 1]
1390 set cflags [lindex $testitem 2]
1391 set src_files [lindex $testitem 3]
1392 set actions [lindex $testitem 4]
1393 set binfile tmpdir/[lindex $testitem 5]
1394 set lang [lindex $testitem 6]
1395 set warnings [lindex $testitem 7]
1400 # Compile each file in the test.
1401 foreach src_file $src_files {
1402 set fileroot "[file rootname [file tail $src_file]]"
1403 set objfile "tmpdir/$fileroot.o"
1404 lappend objfiles $objfile
1406 # We ignore warnings since some compilers may generate
1407 # incorrect section attributes and the assembler will warn
1409 if { [ string match "c++" $lang ] } {
1410 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1412 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1416 # Clear error and warning counts.
1419 if { [ string match "c++" $lang ] } {
1425 if { [regexp ".*\\.a$" $binfile] } {
1426 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
1433 if { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
1439 # Check if exec_output is expected.
1440 if { $warnings != "" } then {
1441 verbose -log "returned with: <$exec_output>, expected: <$warnings>"
1442 if { [regexp $warnings $exec_output] } then {
1449 if { $failed == 1 } {
1454 if { $failed == 0 } {
1455 foreach actionlist $actions {
1456 set action [lindex $actionlist 0]
1457 set progopts [lindex $actionlist 1]
1459 # There are actions where we run regexp_diff on the
1460 # output, and there are other actions (presumably).
1461 # Handling of the former look the same.
1465 { set dump_prog $objdump }
1467 { set dump_prog $nm }
1469 { set dump_prog $READELF }
1472 perror "Unrecognized action $action"
1478 if { $dump_prog != "" } {
1479 set dumpfile [lindex $actionlist 2]
1480 set binary $dump_prog
1482 # Ensure consistent sorting of symbols
1483 if {[info exists env(LC_ALL)]} {
1484 set old_lc_all $env(LC_ALL)
1487 set cmd "$binary $progopts $binfile > dump.out"
1489 catch "exec $cmd" comp_output
1490 if {[info exists old_lc_all]} {
1491 set env(LC_ALL) $old_lc_all
1495 set comp_output [prune_warnings $comp_output]
1497 if ![string match "" $comp_output] then {
1498 send_log "$comp_output\n"
1503 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1504 verbose "output is [file_contents "dump.out"]" 2
1511 if { $failed != 0 } {
1513 } else { if { $is_unresolved == 0 } {
1518 # Catch action errors.
1519 if { $is_unresolved != 0 } {
1520 unresolved $testname
1526 # Returns true if --gc-sections is supported on the target.
1528 proc check_gc_sections_available { } {
1529 global gc_sections_available_saved
1532 if {![info exists gc_sections_available_saved]} {
1533 # Some targets don't support gc-sections despite whatever's
1534 # advertised by ld's options.
1535 if { [istarget arc-*-*]
1536 || [istarget d30v-*-*]
1537 || [istarget dlx-*-*]
1538 || [istarget i960-*-*]
1539 || [istarget or32-*-*]
1540 || [istarget pj*-*-*]
1541 || [istarget alpha-*-*]
1542 || [istarget hppa*64-*-*]
1543 || [istarget i370-*-*]
1544 || [istarget i860-*-*]
1545 || [istarget ia64-*-*]
1546 || [istarget mep-*-*]
1547 || [istarget mn10200-*-*]
1548 || [istarget *-*-cygwin]
1549 || [istarget *-*-mingw*] } {
1550 set gc_sections_available_saved 0
1554 # elf2flt uses -q (--emit-relocs), which is incompatible with
1556 if { [board_info target exists ldflags]
1557 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1558 set gc_sections_available_saved 0
1562 # Check if the ld used by gcc supports --gc-sections.
1563 # FIXME: this test is useless since ld --help always says
1564 # --gc-sections is available
1565 set ld_output [remote_exec host $ld "--help"]
1566 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1567 set gc_sections_available_saved 1
1569 set gc_sections_available_saved 0
1572 return $gc_sections_available_saved
1575 # Returns true if -shared is supported on the target
1576 # Only used and accurate for ELF targets at the moment
1578 proc check_shared_lib_support { } {
1579 if {![istarget aarch64*-*-elf]
1580 && ![istarget arc-*-*]
1581 && ![istarget arm*-*-elf]
1582 && ![istarget avr-*-*]
1583 && ![istarget cr16-*-*]
1584 && ![istarget cris*-*-elf]
1585 && ![istarget crx-*-*]
1586 && ![istarget d10v-*-*]
1587 && ![istarget d30v-*-*]
1588 && ![istarget dlx-*-*]
1589 && ![istarget epiphany-*-*]
1590 && ![istarget fr30-*-*]
1591 && ![istarget frv-*-*]
1592 && ![istarget h8300-*-*]
1593 && ![istarget i860-*-*]
1594 && ![istarget i960-*-*]
1595 && ![istarget ip2k-*-*]
1596 && ![istarget iq2000-*-*]
1597 && ![istarget lm32-*-*]
1598 && ![istarget m32c-*-*]
1599 && ![istarget m32r-*-*]
1600 && ![istarget m6811-*-*]
1601 && ![istarget m6812-*-*]
1602 && ![istarget m68hc1*-*-*]
1603 && ![istarget mcore*-*-*]
1604 && ![istarget mep-*-*]
1605 && ![istarget microblaze-*-*]
1606 && ![istarget mips*-*-elf]
1607 && ![istarget mn10200-*-*]
1608 && ![istarget moxie-*-*]
1609 && ![istarget msp430-*-*]
1610 && ![istarget mt-*-*]
1611 && ![istarget nds32*-*-*]
1612 && ![istarget openrisc-*-*]
1613 && ![istarget or32-*-*]
1614 && ![istarget pj-*-*]
1615 && ![istarget rl78-*-*]
1616 && ![istarget rx-*-*]
1617 && ![istarget spu-*-*]
1618 && ![istarget v850*-*-*]
1619 && ![istarget xstormy16-*-*]
1620 && ![istarget *-*-irix*]
1621 && ![istarget *-*-rtems] } {
1627 # Returns true if the target ld supports the plugin API.
1628 proc check_plugin_api_available { } {
1629 global plugin_api_available_saved
1631 if {![info exists plugin_api_available_saved]} {
1632 # Check if the ld used by gcc supports --plugin.
1633 set ld_output [remote_exec host $ld "--help"]
1634 if { [ string first "-plugin" $ld_output ] >= 0 } {
1635 set plugin_api_available_saved 1
1637 set plugin_api_available_saved 0
1640 return $plugin_api_available_saved
1643 # Returns true if the target compiler supports LTO
1644 proc check_lto_available { } {
1645 global lto_available_saved
1650 if [board_info [target_info name] exists cflags] {
1651 append flags " [board_info [target_info name] cflags]"
1654 if [board_info [target_info name] exists ldflags] {
1655 append flags " [board_info [target_info name] ldflags]"
1658 if {![info exists lto_available_saved]} {
1659 # Check if gcc supports -flto -fuse-linker-plugin
1660 if { [which $CC] == 0 } {
1661 set lto_available_saved 0
1665 set src ${basename}[pid].c
1666 set output ${basename}[pid].out
1667 set f [open $src "w"]
1668 puts $f "int main() { return 0; }"
1670 set status [remote_exec host $CC "$flags -B[pwd]/tmpdir/ld/ -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
1671 if { [lindex $status 0] == 0 } {
1672 set lto_available_saved 1
1674 set lto_available_saved 0
1679 return $lto_available_saved
1682 # Check if the assembler supports CFI statements.
1684 proc check_as_cfi { } {
1685 global check_as_cfi_result
1687 if [info exists check_as_cfi_result] {
1688 return $check_as_cfi_result
1690 set as_file "tmpdir/check_as_cfi.s"
1691 set as_fh [open $as_file w 0666]
1692 puts $as_fh "# Generated file. DO NOT EDIT"
1693 puts $as_fh "\t.cfi_startproc"
1694 puts $as_fh "\t.cfi_endproc"
1696 remote_download host $as_file
1697 verbose -log "Checking CFI support:"
1698 rename "perror" "check_as_cfi_perror"
1699 proc perror { args } { }
1700 set success [ld_assemble $as $as_file "/dev/null"]
1702 rename "check_as_cfi_perror" "perror"
1703 #remote_file host delete $as_file
1704 set check_as_cfi_result $success
1708 # Provide virtual target "cfi" for targets supporting CFI.
1710 rename "istarget" "istarget_ld"
1711 proc istarget { target } {
1712 if {$target == "cfi"} {
1713 return [check_as_cfi]
1715 return [istarget_ld $target]