1 # Support routines for LD testsuite.
2 # Copyright (C) 1994-2016 Free Software Foundation, Inc.
4 # This file is part of the GNU Binutils.
6 # This file is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 proc load_common_lib { name } {
23 load_file $srcdir/../../binutils/testsuite/lib/$name
26 load_common_lib binutils-common.exp
28 # Returns 1 if the gcc for the target is at least version MAJOR.MINOR
29 # Returns 0 otherwise.
31 proc at_least_gcc_version { major minor } {
34 if {![info exists CC]} {
40 set state [remote_exec host $CC --version]
41 if { [lindex $state 0] != 0 } {
44 set tmp "[lindex $state 1]\n"
45 # Look for (eg) 4.6.1 in the version output.
46 set ver_re "\[^\\.0-9\]+(\[1-9\]\[0-9\]*)\\.(\[0-9\]+)(?:\\.\[0-9\]+)?"
47 regexp $ver_re $tmp fred maj min
48 verbose "gcc version: $tmp"
49 if { ![info exists maj] || ![info exists min] } then {
50 perror "can't decipher gcc version number, fix the framework!"
53 verbose "major gcc version is $maj, want at least $major"
54 if { $maj == $major } then {
55 verbose "minor gcc version is $min, want at least $minor"
56 return [expr $min >= $minor]
58 return [expr $maj > $major]
62 # Extract and print the version number of ld.
64 proc default_ld_version { ld } {
67 if { ![is_remote host] && [which $ld] == 0 } then {
68 perror "$ld does not exist"
72 remote_exec host "$ld --version" "" "/dev/null" "ld.version"
73 remote_upload host "ld.version"
74 set tmp [prune_warnings [file_contents "ld.version"]]
75 remote_file build delete "ld.version"
76 remote_file host delete "ld.version"
78 regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
79 if [info exists number] then {
80 clone_output "$ld $number\n"
84 proc run_host_cmd { prog command } {
89 if { ![is_remote host] && [which "$prog"] == 0 } then {
90 perror "$prog does not exist"
94 # If we are compiling with gcc, we want to add gcc_B_opt and
95 # ld_L_opt to flags. However, if $prog already has -B options,
96 # which might be the case when running gcc out of a build
97 # directory, we want our -B options to come first.
99 set gccparm [string first " " $gccexe]
101 if { $gccparm > 0 } then {
102 set gccflags [string range $gccexe $gccparm end]
103 set gccexe [string range $gccexe 0 $gccparm]
106 set gccexe [string replace $gccexe 0 [string last "/" $gccexe] ""]
107 if {[string match "*cc*" $gccexe] || [string match "*++*" $gccexe]} then {
108 set gccflags "$gcc_B_opt $gccflags $ld_L_opt"
111 verbose -log "$prog $gccflags $command"
112 set status [remote_exec host [concat sh -c [list "$prog $gccflags $command 2>&1"]] "" "/dev/null" "ld.tmp"]
113 remote_upload host "ld.tmp"
114 set link_output [file_contents "ld.tmp"]
115 regsub "\n$" $link_output "" link_output
116 if { [lindex $status 0] != 0 && [string match "" $link_output] } then {
117 append link_output "child process exited abnormally"
119 remote_file build delete ld.tmp
120 remote_file host delete ld.tmp
122 if [string match "" $link_output] then {
126 verbose -log "$link_output"
127 return "$link_output"
130 proc run_host_cmd_yesno { prog command } {
132 global errcnt warncnt
134 set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
135 # Ignore error and warning.
138 if [string match "" $exec_output] then {
144 # Link an object using relocation.
146 proc default_ld_relocate { ld target objects } {
149 remote_file host delete $target
150 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"]
153 # Check to see if ld is being invoked with a non-endian output format
155 proc is_endian_output_format { object_flags } {
157 if {[string match "*-oformat binary*" $object_flags] || \
158 [string match "*-oformat ieee*" $object_flags] || \
159 [string match "*-oformat ihex*" $object_flags] || \
160 [string match "*-oformat netbsd-core*" $object_flags] || \
161 [string match "*-oformat srec*" $object_flags] || \
162 [string match "*-oformat tekhex*" $object_flags] || \
163 [string match "*-oformat trad-core*" $object_flags] } then {
170 # Look for big-endian or little-endian switches in the multlib
171 # options and translate these into a -EB or -EL switch. Note
172 # we cannot rely upon proc process_multilib_options to do this
173 # for us because for some targets the compiler does not support
174 # -EB/-EL but it does support -mbig-endian/-mlittle-endian, and
175 # the site.exp file will include the switch "-mbig-endian"
176 # (rather than "big-endian") which is not detected by proc
177 # process_multilib_options.
179 proc big_or_little_endian {} {
181 if [board_info [target_info name] exists multilib_flags] {
182 set tmp_flags " [board_info [target_info name] multilib_flags]"
184 foreach x $tmp_flags {
186 {*big*endian eb EB -eb -EB -mb -meb} {
190 {*little*endian el EL -el -EL -ml -mel} {
202 # Link a program using ld.
204 proc default_ld_link { ld target objects } {
215 if { [ string match "* -pie *" $objects ] } {
216 set objs "$HOSTING_SCRT0 $objects"
217 set libs "$LIBS $HOSTING_SLIBS"
219 set objs "$HOSTING_CRT0 $objects"
220 set libs "$LIBS $HOSTING_LIBS"
223 if [is_endian_output_format $objects] then {
224 set flags [big_or_little_endian]
229 remote_file host delete $target
231 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"]
234 # Link a program using ld, without including any libraries.
236 proc default_ld_simple_link { ld target objects } {
241 if [is_endian_output_format $objects] then {
242 set flags [big_or_little_endian]
245 remote_file host delete $target
246 set exec_output [run_host_cmd "$ld" "$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 return [string match "" $exec_output]
256 # Compile an object using cc.
258 proc default_ld_compile { cc source object } {
267 if {[llength $cc_prog] > 1} then {
268 set cc_prog [lindex $cc_prog 0]
270 if {![is_remote host] && [which $cc_prog] == 0} then {
271 perror "$cc_prog does not exist"
275 remote_file build delete "$object"
276 remote_file host delete "$object"
278 set flags "$gcc_B_opt -I$srcdir/$subdir"
280 # If we are compiling with gcc, we want to add gcc_B_opt to flags.
281 # However, if $prog already has -B options, which might be the
282 # case when running gcc out of a build directory, we want our -B
283 # options to come first.
285 set ccparm [string first " " $cc]
287 if { $ccparm > 0 } then {
288 set ccflags [string range $cc $ccparm end]
289 set ccexe [string range $cc 0 $ccparm]
293 set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
294 if {[string match "*++*" $ccexe]} {
295 append flags " $CXXFLAGS"
297 append flags " $CFLAGS"
300 if [board_info [target_info name] exists cflags] {
301 append flags " [board_info [target_info name] cflags]"
304 if [board_info [target_info name] exists multilib_flags] {
305 append flags " [board_info [target_info name] multilib_flags]"
308 set cmd "$cc $flags $ccflags -c $source -o $object"
311 set status [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
312 remote_upload host "ld.tmp"
313 set exec_output [file_contents "ld.tmp"]
314 remote_file build delete "ld.tmp"
315 remote_file host delete "ld.tmp"
316 set exec_output [prune_warnings $exec_output]
317 if [string match "" $exec_output] then {
318 if {![file exists $object]} then {
319 regexp ".*/(\[^/\]*)$" $source all dobj
320 regsub "\\.c" $dobj ".o" realobj
321 verbose "looking for $realobj"
322 if {[remote_file host exists $realobj]} then {
323 verbose -log "mv $realobj $object"
324 remote_upload "$realobj" "$object"
326 perror "$object not found after compilation"
332 verbose -log "$exec_output"
333 perror "$source: compilation failed"
340 proc default_ld_assemble { as in_flags source object } {
346 if ![info exists ASFLAGS] { set ASFLAGS "" }
348 set flags "[big_or_little_endian] -I$srcdir/$subdir"
349 set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"]
350 set exec_output [prune_warnings $exec_output]
351 if [string match "" $exec_output] then {
354 perror "$source: assembly failed"
359 # Run nm on a file, putting the result in the array nm_output.
361 proc default_ld_nm { nm nmflags object } {
366 if {[info exists nm_output]} {
370 if ![info exists NMFLAGS] { set NMFLAGS "" }
372 # Ensure consistent sorting of symbols
373 if {[info exists env(LC_ALL)]} {
374 set old_lc_all $env(LC_ALL)
378 verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
380 set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
381 if {[info exists old_lc_all]} {
382 set env(LC_ALL) $old_lc_all
386 remote_upload host "ld.stderr"
387 remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
388 set exec_output [prune_warnings [file_contents "ld.stderr"]]
389 remote_file host delete "ld.stderr"
390 remote_file build delete "ld.stderr"
391 if [string match "" $exec_output] then {
392 set file [open tmpdir/nm.out r]
393 while { [gets $file line] != -1 } {
395 if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
396 set name [string trimleft $name "_"]
397 verbose "Setting nm_output($name) to 0x$value" 2
398 set nm_output($name) 0x$value
404 verbose -log "$exec_output"
405 perror "$object: nm failed"
410 # Define various symbols needed when not linking against all
412 proc ld_simple_link_defsyms {} {
414 set flags "--defsym __stack_chk_fail=0"
416 # ARM targets call __gccmain
417 if {[istarget arm*-*-*]} {
418 append flags " --defsym __gccmain=0"
421 # Windows targets need __main, some prefixed with underscore.
422 if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
423 append flags " --defsym __main=0 --defsym ___main=0"
426 # PowerPC EABI code calls __eabi.
427 if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
428 append flags " --defsym __eabi=0"
431 # mn10200 code calls __truncsipsi2_d0_d2.
432 if {[istarget mn10200*-*-*]} then {
433 append flags " --defsym __truncsipsi2_d0_d2=0"
436 # m6811/m6812 code has references to soft registers.
437 if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
438 append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
439 append flags " --defsym _.d3=0 --defsym _.d4=0"
440 append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
443 # Some OpenBSD targets have ProPolice and reference __guard and
444 # __stack_smash_handler.
445 if [istarget *-*-openbsd*] {
446 append flags " --defsym __guard=0"
447 append flags " --defsym __stack_smash_handler=0"
453 # run_dump_test FILE (optional:) EXTRA_OPTIONS
454 # Copied from gas testsuite, tweaked and further extended.
456 # Assemble a .s file, then run some utility on it and check the output.
458 # There should be an assembly language file named FILE.s in the test
459 # suite directory, and a pattern file called FILE.d. `run_dump_test'
460 # will assemble FILE.s, run some tool like `objdump', `objcopy', or
461 # `nm' on the .o file to produce textual output, and then analyze that
462 # with regexps. The FILE.d file specifies what program to run, and
463 # what to expect in its output.
465 # The FILE.d file begins with zero or more option lines, which specify
466 # flags to pass to the assembler, the program to run to dump the
467 # assembler's output, and the options it wants. The option lines have
472 # OPTION is the name of some option, like "name" or "objdump", and
473 # VALUE is OPTION's value. The valid options are described below.
474 # Whitespace is ignored everywhere, except within VALUE. The option
475 # list ends with the first line that doesn't match the above syntax
476 # (hmm, not great for error detection).
478 # The optional EXTRA_OPTIONS argument to `run_dump_test' is a list of
479 # two-element lists. The first element of each is an option name, and
480 # the second additional arguments to be added on to the end of the
481 # option list as given in FILE.d. (If omitted, no additional options
484 # The interesting options are:
487 # The name of this test, passed to DejaGNU's `pass' and `fail'
488 # commands. If omitted, this defaults to FILE, the root of the
489 # .s and .d files' names.
492 # When assembling, pass FLAGS to the assembler.
493 # If assembling several files, you can pass different assembler
494 # options in the "source" directives. See below.
497 # Link assembled files using FLAGS, in the order of the "source"
498 # directives, when using multiple files.
500 # ld_after_inputfiles: FLAGS
501 # Similar to "ld", but put after all input files.
503 # objcopy_objects: FLAGS
504 # Run objcopy with the specified flags after assembling any source
505 # that has the special marker RUN_OBJCOPY in the source specific
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.
524 # Use the specified program to analyze the assembler or linker
525 # output file, and pass it FLAGS, in addition to the output name.
526 # Note that they are run with LC_ALL=C in the environment to give
527 # consistent sorting of symbols.
529 # source: SOURCE [FLAGS]
530 # Assemble the file SOURCE.s using the flags in the "as" directive
531 # and the (optional) FLAGS. If omitted, the source defaults to
533 # This is useful if several .d files want to share a .s file.
534 # More than one "source" directive can be given, which is useful
535 # when testing linking.
538 # Match against DUMP.d. If omitted, this defaults to FILE.d. This
539 # is useful if several .d files differ by options only. Options are
540 # always read from FILE.d.
543 # The test is expected to fail on TARGET. This may occur more than
547 # Only run the test for TARGET. This may occur more than once; the
548 # target being tested must match at least one. You may provide target
549 # name "cfi" for any target supporting the CFI statements.
552 # Do not run the test for TARGET. This may occur more than once;
553 # the target being tested must not match any of them.
556 # An error with message matching REGEX must be emitted for the test
557 # to pass. The PROG, readelf, objdump, nm and objcopy options have
558 # no meaning and need not be supplied if this is present. Multiple
559 # "error" directives append to the expected linker error message.
562 # Means the same as 'error', except the regular expression lines
563 # are contains in FILE.
566 # Expect a linker warning matching REGEX. It is an error to issue
567 # both "error" and "warning". Multiple "warning" directives
568 # append to the expected linker warning message.
570 # warning_output: FILE
571 # Means the same as 'warning', except the regular expression
572 # lines are contains in FILE.
575 # Adding this option will cause the linker to generate a linker
576 # map file, using the -Map=MAPFILE command line option. If
577 # there is no -Map=MAPFILE in the 'ld: FLAGS' then one will be
578 # added to the linker command line. The contents of the
579 # generated MAPFILE are then compared against the regexp lines
580 # in FILE using `regexp_diff' (see below for details).
582 # Each option may occur at most once unless otherwise mentioned.
584 # After the option lines come regexp lines. `run_dump_test' calls
585 # `regexp_diff' to compare the output of the dumping tool against the
586 # regexps in FILE.d. `regexp_diff' is defined in binutils-common.exp;
587 # see further comments there.
589 proc run_dump_test { name {extra_options {}} } {
591 global OBJDUMP NM AS OBJCOPY READELF LD
592 global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
593 global host_triplet runtests
595 global ld_elf_shared_opt
597 if { [is_elf_format] && [check_shared_lib_support] } {
598 set ld_extra_opt "$ld_elf_shared_opt"
603 if [string match "*/*" $name] {
605 set name [file tail $name]
607 set file "$srcdir/$subdir/$name"
610 if ![runtest_file_p $runtests $name] then {
614 set opt_array [slurp_options "${file}.d"]
615 if { $opt_array == -1 } {
616 perror "error reading options from $file.d"
617 unresolved $subdir/$name
620 set dumpfile tmpdir/dump.out
625 set opts(ld_after_inputfiles) {}
628 set opts(notarget) {}
639 set opts(error_output) {}
640 set opts(warning_output) {}
641 set opts(objcopy_linked_file) {}
642 set opts(objcopy_objects) {}
645 foreach i $opt_array {
646 set opt_name [lindex $i 0]
647 set opt_val [lindex $i 1]
648 if ![info exists opts($opt_name)] {
649 perror "unknown option $opt_name in file $file.d"
650 unresolved $subdir/$name
654 switch -- $opt_name {
661 # Move any source-specific as-flags to a separate list to
662 # simplify processing.
663 if { [llength $opt_val] > 1 } {
664 lappend asflags [lrange $opt_val 1 end]
665 set opt_val [lindex $opt_val 0]
671 if [string length $opts($opt_name)] {
672 perror "option $opt_name multiply set in $file.d"
673 unresolved $subdir/$name
677 # A single "# ld:" with no options should do the right thing.
678 if { $opt_name == "ld" } {
681 # Likewise objcopy_linked_file.
682 if { $opt_name == "objcopy_linked_file" } {
687 if { $opt_name == "as" || $opt_name == "ld" } {
688 set opt_val [subst $opt_val]
691 # Append differently whether it's a message (without space) or
692 # an option or list (with space).
693 switch -- $opt_name {
696 append opts($opt_name) $opt_val
699 set opts($opt_name) [concat $opts($opt_name) $opt_val]
704 foreach i $extra_options {
705 set opt_name [lindex $i 0]
706 set opt_val [lindex $i 1]
707 if ![info exists opts($opt_name)] {
708 perror "unknown option $opt_name given in extra_opts"
709 unresolved $subdir/$name
712 # Add extra option to end of existing option, adding space
714 if { ![regexp "warning|error" $opt_name]
715 && [string length $opts($opt_name)] } {
716 append opts($opt_name) " "
718 append opts($opt_name) $opt_val
721 foreach opt { as ld } {
722 regsub {\[big_or_little_endian\]} $opts($opt) \
723 [big_or_little_endian] opts($opt)
726 # Decide early whether we should run the test for this target.
727 if { [llength $opts(target)] > 0 } {
729 foreach targ $opts(target) {
730 if [istarget $targ] {
735 if { $targmatch == 0 } {
739 foreach targ $opts(notarget) {
740 if [istarget $targ] {
746 # It's meaningless to require an output-testing method when we
748 if { $opts(error) == "" && $opts(error_output) == "" } {
749 if {$opts(PROG) != ""} {
750 switch -- $opts(PROG) {
751 objdump { set program objdump }
752 nm { set program nm }
753 objcopy { set program objcopy }
754 readelf { set program readelf }
756 { perror "unrecognized program option $opts(PROG) in $file.d"
757 unresolved $subdir/$name
761 # Guess which program to run, by seeing which option was specified.
762 foreach p {objdump objcopy nm readelf} {
763 if {$opts($p) != ""} {
764 if {$program != ""} {
765 perror "ambiguous dump program in $file.d"
766 unresolved $subdir/$name
774 if { $program == "" \
775 && $opts(map) == "" \
776 && $opts(warning) == "" \
777 && $opts(warning_output) == "" \
778 && $opts(error) == "" \
779 && $opts(error_output) == "" } {
780 perror "dump program unspecified in $file.d"
781 unresolved $subdir/$name
786 if { $opts(name) == "" } {
787 set testname "$subdir/$name"
789 set testname $opts(name)
792 if { $opts(source) == "" } {
793 set sourcefiles [list ${file}.s]
794 set asflags [list ""]
797 foreach sf $opts(source) {
798 if { [string match "/*" $sf] } {
799 lappend sourcefiles "$sf"
801 lappend sourcefiles "$srcdir/$subdir/$sf"
806 if { $opts(dump) == "" } {
809 set dfile $srcdir/$subdir/$opts(dump)
812 # Time to setup xfailures.
813 foreach targ $opts(xfail) {
817 # Assemble each file.
819 for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
820 set sourcefile [lindex $sourcefiles $i]
821 set sourceasflags [lindex $asflags $i]
822 set run_objcopy_objects 0
824 if { [string match "*RUN_OBJCOPY*" $sourceasflags] } {
825 set run_objcopy_objects 1
827 regsub "RUN_OBJCOPY" $sourceasflags "" sourceasflags
829 set objfile "tmpdir/dump$i.o"
830 catch "exec rm -f $objfile" exec_output
831 lappend objfiles $objfile
832 set cmd "$AS $ASFLAGS $opts(as) $sourceasflags -o $objfile $sourcefile"
835 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
836 remote_upload host "ld.tmp"
837 set comp_output [prune_warnings [file_contents "ld.tmp"]]
838 remote_file host delete "ld.tmp"
839 remote_file build delete "ld.tmp"
841 if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
842 send_log "$comp_output\n"
843 verbose "$comp_output" 3
845 set exitstat "succeeded"
846 if { $cmdret != 0 } { set exitstat "failed" }
847 verbose -log "$exitstat with: <$comp_output>"
852 if { $run_objcopy_objects } {
853 set cmd "$OBJCOPY $opts(objcopy_objects) $objfile"
856 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] \
857 "" "/dev/null" "objcopy.tmp"]
858 remote_upload host "objcopy.tmp"
859 set comp_output [prune_warnings [file_contents "objcopy.tmp"]]
860 remote_file host delete "objcopy.tmp"
861 remote_file build delete "objcopy.tmp"
863 if { [lindex $cmdret 0] != 0 \
864 || ![string match "" $comp_output] } {
865 send_log "$comp_output\n"
866 verbose "$comp_output" 3
868 set exitstat "succeeded"
869 if { $cmdret != 0 } { set exitstat "failed" }
870 verbose -log "$exitstat with: <$comp_output>"
877 if { (($opts(warning) != "") && ($opts(error) != "")) \
878 || (($opts(warning) != "") && ($opts(error_output) != "")) \
879 || (($opts(warning) != "") && ($opts(warning_output) != "")) \
880 || (($opts(error) != "") && ($opts(warning_output) != "")) \
881 || (($opts(error) != "") && ($opts(error_output) != "")) \
882 || (($opts(warning_output) != "") && ($opts(error_output) != "")) } {
883 perror "$testname: bad mix of warning, error, warning_output, and error_output test-directives"
888 set check_ld(source) ""
889 set check_ld(terminal) 0
890 if { $opts(error) != "" \
891 || $opts(warning) != "" \
892 || $opts(error_output) != "" \
893 || $opts(warning_output) != "" } {
895 if { $opts(error) != "" || $opts(error_output) != "" } {
896 set check_ld(terminal) 1
898 set check_ld(terminal) 0
901 if { $opts(error) != "" || $opts(warning) != "" } {
902 set check_ld(source) "regex"
903 if { $opts(error) != "" } {
904 set check_ld(regex) $opts(error)
906 set check_ld(regex) $opts(warning)
909 set check_ld(source) "file"
910 if { $opts(error_output) != "" } {
911 set check_ld(file) $opts(error_output)
913 set check_ld(file) $opts(warning_output)
918 # Perhaps link the file(s).
920 set objfile "tmpdir/dump"
921 catch "exec rm -f $objfile" exec_output
923 # Add -L$srcdir/$subdir so that the linker command can use
924 # linker scripts in the source directory.
925 set cmd "$LD $ld_extra_opt $LDFLAGS -L$srcdir/$subdir \
926 $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
928 # If needed then check for, or add a -Map option.
930 if { $opts(map) != "" } then {
931 if { [regexp -- "-Map=(\[^ \]+)" $cmd all mapfile] } then {
932 # Found existing mapfile option
933 verbose -log "Existing mapfile '$mapfile' found"
936 set mapfile "tmpdir/dump.map"
937 verbose -log "Adding mapfile '$mapfile'"
938 set cmd "$cmd -Map=$mapfile"
943 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
944 remote_upload host "ld.tmp"
945 set comp_output [file_contents "ld.tmp"]
946 remote_file host delete "ld.tmp"
947 remote_file build delete "ld.tmp"
948 set cmdret [lindex $cmdret 0]
950 if { $cmdret == 0 && $run_objcopy } {
952 set objfile "tmpdir/dump1"
953 remote_file host delete $objfile
955 # Note that we don't use OBJCOPYFLAGS here; any flags must be
956 # explicitly specified.
957 set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
960 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
961 remote_upload host "ld.tmp"
962 append comp_output [file_contents "ld.tmp"]
963 remote_file host delete "ld.tmp"
964 remote_file build delete "ld.tmp"
965 set cmdret [lindex $cmdret 0]
968 regsub "\n$" $comp_output "" comp_output
969 if { $cmdret != 0 || $comp_output != "" || $check_ld(source) != "" } then {
970 set exitstat "succeeded"
971 if { $cmdret != 0 } { set exitstat "failed" }
973 if { $check_ld(source) == "regexp" } {
974 verbose -log "$exitstat with: <$comp_output>, expected: <$check_ld(regex)>"
975 } elseif { $check_ld(source) == "file" } {
976 verbose -log "$exitstat with: <$comp_output>, expected in file $check_ld(file)"
977 set_file_contents "tmpdir/ld.messages" "$comp_output"
979 verbose -log "$exitstat with: <$comp_output>, no expected output"
981 send_log "$comp_output\n"
982 verbose "$comp_output" 3
984 if { (($check_ld(source) == "") == ($comp_output == "")) \
985 && (($cmdret == 0) == ($check_ld(terminal) == 0)) \
986 && ((($check_ld(source) == "regex") \
987 && ($check_ld(regex) == "") == ($comp_output == "") \
988 && [regexp $check_ld(regex) $comp_output]) \
989 || (($check_ld(source) == "file") \
990 && (![regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$check_ld(file)"]))) } {
991 # We have the expected output from ld.
992 if { $check_ld(terminal) || $program == "" } {
1002 if { $opts(map) != "" } then {
1003 # Check the map file matches.
1004 set map_pattern_file $srcdir/$subdir/$opts(map)
1005 verbose -log "Compare '$mapfile' against '$map_pattern_file'"
1006 if { [regexp_diff $mapfile $map_pattern_file] } then {
1007 fail "$testname (map file check)"
1009 pass "$testname (map file check)"
1012 if { $program == "" } then {
1017 set objfile "tmpdir/dump0.o"
1020 # We must not have expected failure if we get here.
1021 if { $opts(error) != "" } {
1026 set progopts1 $opts($program)
1027 eval set progopts \$[string toupper $program]FLAGS
1028 eval set binary \$[string toupper $program]
1030 if { ![is_remote host] && [which $binary] == 0 } {
1035 if { $progopts1 == "" } { set $progopts1 "-r" }
1036 verbose "running $binary $progopts $progopts1" 3
1038 # Objcopy, unlike the other two, won't send its output to stdout,
1039 # so we have to run it specially.
1040 set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
1041 if { $program == "objcopy" } {
1042 set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
1045 # Ensure consistent sorting of symbols
1046 if {[info exists env(LC_ALL)]} {
1047 set old_lc_all $env(LC_ALL)
1051 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
1052 set cmdret [lindex $cmdret 0]
1053 remote_upload host "ld.tmp"
1054 set comp_output [prune_warnings [file_contents "ld.tmp"]]
1055 remote_file host delete "ld.tmp"
1056 remote_file build delete "ld.tmp"
1057 if {[info exists old_lc_all]} {
1058 set env(LC_ALL) $old_lc_all
1062 if { $cmdret != 0 || $comp_output != "" } {
1063 send_log "exited abnormally with $cmdret, output:$comp_output\n"
1068 if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
1069 if { [regexp_diff $dumpfile "${dfile}"] } then {
1071 if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
1078 proc slurp_options { file } {
1079 # If options_regsub(foo) is set to {a b}, then the contents of a
1080 # "#foo:" line will have regsub -all applied to replace a with b.
1081 global options_regsub
1083 if [catch { set f [open $file r] } x] {
1084 #perror "couldn't open `$file': $x"
1089 # whitespace expression
1092 # whitespace is ignored anywhere except within the options list;
1093 # option names are alphabetic plus underscore only.
1094 set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$"
1095 while { [gets $f line] != -1 } {
1096 set line [string trim $line]
1097 # Whitespace here is space-tab.
1098 if [regexp $pat $line xxx opt_name opt_val] {
1100 if [info exists options_regsub($opt_name)] {
1101 set subst $options_regsub($opt_name)
1102 regsub -all -- [lindex $subst 0] $opt_val [lindex $subst 1] \
1105 lappend opt_array [list $opt_name $opt_val]
1114 proc file_contents { filename } {
1115 set file [open $filename r]
1116 set contents [read $file]
1121 proc set_file_contents { filename contents } {
1122 set file [open $filename w]
1123 puts $file "$contents"
1127 # Create an archive using ar
1129 proc ar_simple_create { ar aropts target objects } {
1130 remote_file host delete $target
1132 set exec_output [run_host_cmd "$ar" "-rc $aropts $target $objects"]
1133 set exec_output [prune_warnings $exec_output]
1135 if [string match "" $exec_output] then {
1136 send_log "$exec_output\n"
1143 # List contains test-items with 3 items followed by 2 lists, one item and
1144 # one optional item:
1146 # 1:ld/ar leading options, placed before object files
1147 # 2:ld/ar trailing options, placed after object files
1148 # 3:assembler options
1149 # 4:filenames of assembler files
1150 # 5:list of actions, options and expected outputs.
1151 # 6:name of output file
1152 # 7:compiler flags (optional)
1154 # Actions: { command command-line-options file-containg-expected-output-regexps }
1156 # objdump: Apply objdump options on result.
1157 # nm: Apply nm options on result.
1158 # readelf: Apply readelf options on result.
1159 # ld: Don't apply anything on result. Compare output during linking with
1160 # the file containing regexps (which is the second arg, not the third).
1161 # Note that this *must* be the first action if it is to be used at all;
1162 # in all other cases, any output from the linker during linking is
1163 # treated as a sign of an error and FAILs the test.
1165 # args is an optional list of target triplets to be xfailed.
1167 proc run_ld_link_tests { ldtests args } {
1181 global ld_elf_shared_opt
1183 if { [is_elf_format] && [check_shared_lib_support] } {
1184 set ld_extra_opt "$ld_elf_shared_opt"
1189 foreach testitem $ldtests {
1190 set testname [lindex $testitem 0]
1192 if ![runtest_file_p $runtests $testname] then {
1196 foreach target $args {
1200 set ld_options [lindex $testitem 1]
1201 set ld_after [lindex $testitem 2]
1202 set as_options [lindex $testitem 3]
1203 set src_files [lindex $testitem 4]
1204 set actions [lindex $testitem 5]
1205 set binfile tmpdir/[lindex $testitem 6]
1206 set cflags [lindex $testitem 7]
1213 # verbose -log "Testname is $testname"
1214 # verbose -log "ld_options is $ld_options"
1215 # verbose -log "ld_after is $ld_after"
1216 # verbose -log "as_options is $as_options"
1217 # verbose -log "src_files is $src_files"
1218 # verbose -log "actions is $actions"
1219 # verbose -log "binfile is $binfile"
1221 # Assemble each file in the test.
1222 foreach src_file $src_files {
1223 set fileroot "[file rootname [file tail $src_file]]"
1224 set objfile "tmpdir/$fileroot.o"
1225 lappend objfiles $objfile
1227 if { [file extension $src_file] == ".c" } {
1228 set as_file "tmpdir/$fileroot.s"
1229 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
1234 set as_file "$srcdir/$subdir/$src_file"
1236 if ![ld_assemble $as "$as_options $as_file" $objfile] {
1242 # Catch assembler errors.
1243 if { $is_unresolved } {
1244 unresolved $testname
1248 if { $binfile eq "tmpdir/" } {
1250 } elseif { [regexp ".*\\.a$" $binfile] } {
1251 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
1254 } elseif { ![ld_simple_link $ld $binfile "$ld_extra_opt -L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
1256 set ld_output "$exec_output"
1260 foreach actionlist $actions {
1261 set action [lindex $actionlist 0]
1262 set progopts [lindex $actionlist 1]
1264 # There are actions where we run regexp_diff on the
1265 # output, and there are other actions (presumably).
1266 # Handling of the former look the same.
1270 { set dump_prog $objdump }
1272 { set dump_prog $nm }
1274 { set dump_prog $READELF }
1276 { set dump_prog "ld" }
1279 perror "Unrecognized action $action"
1285 if { $action == "ld" } {
1286 set regexpfile $progopts
1287 verbose "regexpfile is $srcdir/$subdir/$regexpfile"
1288 set_file_contents "tmpdir/ld.messages" "$ld_output"
1289 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
1290 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then {
1291 verbose "output is $ld_output" 2
1296 } elseif { !$maybe_failed && $dump_prog != "" } {
1297 set dumpfile [lindex $actionlist 2]
1298 set binary $dump_prog
1300 # Ensure consistent sorting of symbols
1301 if {[info exists env(LC_ALL)]} {
1302 set old_lc_all $env(LC_ALL)
1305 set cmd "$binary $progopts $binfile"
1306 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
1308 remote_upload host "ld.stderr"
1309 set comp_output [prune_warnings [file_contents "ld.stderr"]]
1310 remote_file host delete "ld.stderr"
1311 remote_file build delete "ld.stderr"
1313 if {[info exists old_lc_all]} {
1314 set env(LC_ALL) $old_lc_all
1319 if ![string match "" $comp_output] then {
1320 send_log "$comp_output\n"
1325 remote_upload host "dump.out"
1327 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1328 verbose "output is [file_contents "dump.out"]" 2
1330 remote_file build delete "dump.out"
1331 remote_file host delete "dump.out"
1334 remote_file build delete "dump.out"
1335 remote_file host delete "dump.out"
1340 if { $is_unresolved } {
1341 unresolved $testname
1342 } elseif { $maybe_failed || $failed } {
1350 # This definition is taken from an unreleased version of DejaGnu. Once
1351 # that version gets released, and has been out in the world for a few
1352 # months at least, it may be safe to delete this copy.
1353 if ![string length [info proc prune_warnings]] {
1355 # prune_warnings -- delete various system verbosities from TEXT
1358 # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
1360 # Sites with particular verbose os's may wish to override this in site.exp.
1362 proc prune_warnings { text } {
1363 # This is from sun4's. Do it for all machines for now.
1364 # The "\\1" is to try to preserve a "\n" but only if necessary.
1365 regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
1367 # It might be tempting to get carried away and delete blank lines, etc.
1368 # Just delete *exactly* what we're ask to, and that's it.
1373 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
1374 # and 3 optional items:
1377 # 2:assembler options
1378 # 3:filenames of source files
1379 # 4:name of output file
1381 # 6:compiler flags (optional)
1382 # 7:language (optional)
1383 # 8:linker warning (optional)
1384 # args is an optional list of target triplets to be xfailed.
1386 proc run_ld_link_exec_tests { ldtests args } {
1399 foreach testitem $ldtests {
1400 foreach target $args {
1403 set testname [lindex $testitem 0]
1404 set ld_options [lindex $testitem 1]
1405 set as_options [lindex $testitem 2]
1406 set src_files [lindex $testitem 3]
1407 set binfile tmpdir/[lindex $testitem 4]
1408 set expfile [lindex $testitem 5]
1409 set cflags [lindex $testitem 6]
1410 set lang [lindex $testitem 7]
1411 set warning [lindex $testitem 8]
1415 # verbose -log "Testname is $testname"
1416 # verbose -log "ld_options is $ld_options"
1417 # verbose -log "as_options is $as_options"
1418 # verbose -log "src_files is $src_files"
1419 # verbose -log "binfile is $binfile"
1421 # Assemble each file in the test.
1422 foreach src_file $src_files {
1423 set fileroot "[file rootname [file tail $src_file]]"
1424 set objfile "tmpdir/$fileroot.o"
1425 lappend objfiles $objfile
1427 # We ignore warnings since some compilers may generate
1428 # incorrect section attributes and the assembler will warn
1430 if { [ string match "c++" $lang ] } {
1431 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1433 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1437 # We have to use $CC to build PIE and shared library.
1438 if { [ string match "c" $lang ] } {
1439 set link_proc ld_simple_link
1441 } elseif { [ string match "c++" $lang ] } {
1442 set link_proc ld_simple_link
1444 } elseif { [ string match "-shared" $ld_options ] \
1445 || [ string match "-pie" $ld_options ] } {
1446 set link_proc ld_simple_link
1449 set link_proc ld_link
1453 if { $binfile eq "tmpdir/" } {
1457 } elseif ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
1461 # Check if exec_output is expected.
1462 if { $warning != "" } then {
1463 verbose -log "returned with: <$exec_output>, expected: <$warning>"
1464 if { [regexp $warning $exec_output] } then {
1471 if { $failed == 0 } {
1472 send_log "Running: $binfile > $binfile.out\n"
1473 verbose "Running: $binfile > $binfile.out"
1474 catch "exec $binfile > $binfile.out" exec_output
1476 if ![string match "" $exec_output] then {
1477 send_log "$exec_output\n"
1478 verbose "$exec_output" 1
1481 send_log "diff $binfile.out $srcdir/$subdir/$expfile\n"
1482 verbose "diff $binfile.out $srcdir/$subdir/$expfile"
1483 catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output
1484 set exec_output [prune_warnings $exec_output]
1486 if ![string match "" $exec_output] then {
1487 send_log "$exec_output\n"
1488 verbose "$exec_output" 1
1494 if { $failed != 0 } {
1503 # List contains test-items with 3 items followed by 2 lists, one item and
1504 # one optional item:
1506 # 1:ld or ar options
1508 # 3:filenames of source files
1509 # 4:action and options.
1510 # 5:name of output file
1511 # 6:language (optional)
1512 # 7:linker warnings (optional)
1515 # objdump: Apply objdump options on result. Compare with regex (last arg).
1516 # nm: Apply nm options on result. Compare with regex (last arg).
1517 # readelf: Apply readelf options on result. Compare with regex (last arg).
1519 proc run_cc_link_tests { ldtests } {
1534 if [board_info [target_info name] exists cflags] {
1535 set board_cflags " [board_info [target_info name] cflags]"
1540 foreach testitem $ldtests {
1541 set testname [lindex $testitem 0]
1542 set ldflags [lindex $testitem 1]
1543 set cflags [lindex $testitem 2]
1544 set src_files [lindex $testitem 3]
1545 set actions [lindex $testitem 4]
1546 set binfile tmpdir/[lindex $testitem 5]
1547 set lang [lindex $testitem 6]
1548 set warnings [lindex $testitem 7]
1553 #verbose -log "testname is $testname"
1554 #verbose -log "ldflags is $ldflags"
1555 #verbose -log "cflags is $cflags"
1556 #verbose -log "src_files is $src_files"
1557 #verbose -log "actions is $actions"
1558 #verbose -log "binfile is $binfile"
1559 #verbose -log "lang is $lang"
1560 #verbose -log "warnings is $warnings"
1562 # Compile each file in the test.
1563 foreach src_file $src_files {
1564 set fileroot "[file rootname [file tail $src_file]]"
1565 set objfile "tmpdir/$fileroot.o"
1566 lappend objfiles $objfile
1568 # We ignore warnings since some compilers may generate
1569 # incorrect section attributes and the assembler will warn
1571 if { [ string match "c++" $lang ] } {
1572 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1574 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1578 # Clear error and warning counts.
1581 if { [ string match "c++" $lang ] } {
1587 if { $binfile eq "tmpdir/" } {
1589 } elseif { [regexp ".*\\.a$" $binfile] } {
1590 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
1594 if { ![ld_simple_link $cc_cmd $binfile "$board_cflags -L$srcdir/$subdir $ldflags $objfiles"] } {
1598 # Check if exec_output is expected.
1599 if { $warnings != "" } then {
1600 verbose -log "returned with: <$exec_output>, expected: <$warnings>"
1601 if { [regexp $warnings $exec_output] } then {
1609 if { $failed == 0 } {
1610 foreach actionlist $actions {
1611 set action [lindex $actionlist 0]
1612 set progopts [lindex $actionlist 1]
1614 # There are actions where we run regexp_diff on the
1615 # output, and there are other actions (presumably).
1616 # Handling of the former look the same.
1620 { set dump_prog $objdump }
1622 { set dump_prog $nm }
1624 { set dump_prog $READELF }
1627 perror "Unrecognized action $action"
1633 if { $dump_prog != "" } {
1634 set dumpfile [lindex $actionlist 2]
1635 set binary $dump_prog
1637 # Ensure consistent sorting of symbols
1638 if {[info exists env(LC_ALL)]} {
1639 set old_lc_all $env(LC_ALL)
1642 set cmd "$binary $progopts $binfile > dump.out"
1644 catch "exec $cmd" comp_output
1645 if {[info exists old_lc_all]} {
1646 set env(LC_ALL) $old_lc_all
1650 set comp_output [prune_warnings $comp_output]
1652 if ![string match "" $comp_output] then {
1653 send_log "$comp_output\n"
1658 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1659 verbose "output is [file_contents "dump.out"]" 2
1669 } elseif { $is_unresolved } {
1670 unresolved $testname
1677 # Returns true if --gc-sections is supported on the target.
1679 proc check_gc_sections_available { } {
1680 global gc_sections_available_saved
1683 if {![info exists gc_sections_available_saved]} {
1684 # Some targets don't support gc-sections despite whatever's
1685 # advertised by ld's options.
1686 if { [istarget d30v-*-*]
1687 || [istarget dlx-*-*]
1688 || [istarget i960-*-*]
1689 || [istarget pj*-*-*]
1690 || [istarget alpha-*-*]
1691 || [istarget hppa*64-*-*]
1692 || [istarget i370-*-*]
1693 || [istarget i860-*-*]
1694 || [istarget ia64-*-*]
1695 || [istarget mep-*-*]
1696 || [istarget mn10200-*-*] } {
1697 set gc_sections_available_saved 0
1701 # elf2flt uses -q (--emit-relocs), which is incompatible with
1703 if { [board_info target exists ldflags]
1704 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1705 set gc_sections_available_saved 0
1709 # Check if the ld used by gcc supports --gc-sections.
1710 # FIXME: this test is useless since ld --help always says
1711 # --gc-sections is available
1712 set ld_output [remote_exec host $ld "--help"]
1713 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1714 set gc_sections_available_saved 1
1716 set gc_sections_available_saved 0
1719 return $gc_sections_available_saved
1722 # Returns true if -shared is supported on the target
1723 # Only used and accurate for ELF targets at the moment
1725 proc check_shared_lib_support { } {
1726 if {![istarget aarch64*-*-elf]
1727 && ![istarget arc*-*-elf*]
1728 && ![istarget arm*-*-elf]
1729 && ![istarget avr-*-*]
1730 && ![istarget cr16-*-*]
1731 && ![istarget cris*-*-elf]
1732 && ![istarget crx-*-*]
1733 && ![istarget d10v-*-*]
1734 && ![istarget d30v-*-*]
1735 && ![istarget dlx-*-*]
1736 && ![istarget epiphany-*-*]
1737 && ![istarget fr30-*-*]
1738 && ![istarget frv-*-*]
1739 && ![istarget ft32-*-*]
1740 && ![istarget h8300-*-*]
1741 && ![istarget i860-*-*]
1742 && ![istarget i960-*-*]
1743 && ![istarget ip2k-*-*]
1744 && ![istarget iq2000-*-*]
1745 && ![istarget lm32-*-*]
1746 && ![istarget m32c-*-*]
1747 && ![istarget m32r-*-*]
1748 && ![istarget m6811-*-*]
1749 && ![istarget m6812-*-*]
1750 && ![istarget m68hc1*-*-*]
1751 && ![istarget mcore*-*-*]
1752 && ![istarget mep-*-*]
1753 && ![istarget microblaze-*-*]
1754 && ![istarget mips*-*-elf]
1755 && ![istarget mn10200-*-*]
1756 && ![istarget moxie-*-*]
1757 && ![istarget msp430-*-*]
1758 && ![istarget mt-*-*]
1759 && ![istarget nds32*-*-*]
1760 && ![istarget or1k*-*-*]
1761 && ![istarget pj-*-*]
1762 && ![istarget rl78-*-*]
1763 && ![istarget rx-*-*]
1764 && ![istarget spu-*-*]
1765 && ![istarget v850*-*-*]
1766 && ![istarget visium-*-*]
1767 && ![istarget xc16x-*-elf]
1768 && ![istarget xgate-*-*]
1769 && ![istarget xstormy16-*-*]
1770 && ![istarget *-*-irix*]
1771 && ![istarget *-*-rtems] } {
1777 # Return true if target uses genelf.em (assuming it is ELF).
1778 proc is_generic_elf { } {
1779 if { [istarget "d30v-*-*"]
1780 || [istarget "dlx-*-*"]
1781 || [istarget "fr30-*-*"]
1782 || ([istarget "frv-*-*"] && ![istarget "frv-*-linux*"])
1783 || [istarget "ft32-*-*"]
1784 || [istarget "i860-*-*"]
1785 || [istarget "i960-*-*"]
1786 || [istarget "iq2000-*-*"]
1787 || [istarget "mn10200-*-*"]
1788 || [istarget "moxie-*-*"]
1789 || [istarget "msp430-*-*"]
1790 || [istarget "mt-*-*"]
1791 || [istarget "pj*-*-*"] } {
1797 # Returns true if the target ld supports the plugin API.
1798 proc check_plugin_api_available { } {
1799 global plugin_api_available_saved
1801 if {![info exists plugin_api_available_saved]} {
1802 # Check if the ld used by gcc supports --plugin.
1803 set ld_output [remote_exec host $ld "--help"]
1804 if { [ string first "-plugin PLUGIN" $ld_output ] >= 0 } {
1805 set plugin_api_available_saved 1
1807 set plugin_api_available_saved 0
1810 return $plugin_api_available_saved
1813 # Sets ld_sysroot to the current sysroot (empty if not supported) and
1814 # returns true if the target ld supports sysroot.
1815 proc check_sysroot_available { } {
1816 global ld_sysroot_available_saved ld ld_sysroot
1817 if {![info exists ld_sysroot_available_saved]} {
1818 # Check if ld supports --sysroot *other* than empty.
1819 set ld_sysroot [string trimright [lindex [remote_exec host $ld "--print-sysroot"] 1]]
1820 if { $ld_sysroot == "" } {
1821 set ld_sysroot_available_saved 0
1823 set ld_sysroot_available_saved 1
1826 return $ld_sysroot_available_saved
1829 # Returns 1 if plugin is enabled in gcc. Returns 0 otherwise.
1830 proc check_gcc_plugin_enabled { } {
1833 if {![info exists CC]} {
1839 set state [remote_exec host $CC -v]
1840 if { [lindex $state 0] != 0 } {
1843 for { set i 1 } { $i < [llength $state] } { incr i } {
1844 set v [lindex $state $i]
1845 if { [ string match "*--disable-plugin*" $v ] } {
1846 verbose "plugin is disabled by $v"
1854 # Returns true if the target compiler supports LTO
1855 proc check_lto_available { } {
1856 global lto_available_saved
1859 if {![info exists lto_available_saved]} {
1860 if { ![check_gcc_plugin_enabled] } {
1861 set lto_available_saved 0
1864 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1865 # -ffat-lto-objects, we always run LTO tests on Linux with
1867 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1868 set lto_available_saved 1
1871 # Check if gcc supports -flto -fuse-linker-plugin
1873 if [board_info [target_info name] exists cflags] {
1874 append flags " [board_info [target_info name] cflags]"
1876 if [board_info [target_info name] exists ldflags] {
1877 append flags " [board_info [target_info name] ldflags]"
1880 set basename "tmpdir/lto[pid]"
1881 set src ${basename}.c
1882 set output ${basename}.out
1883 set f [open $src "w"]
1884 puts $f "int main() { return 0; }"
1886 if [is_remote host] {
1887 set src [remote_download host $src]
1889 set lto_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -fuse-linker-plugin $src -o $output"]
1890 remote_file host delete $src
1891 remote_file host delete $output
1894 return $lto_available_saved
1897 # Returns true if the target compiler supports LTO -ffat-lto-objects
1898 proc check_lto_fat_available { } {
1899 global lto_fat_available_saved
1902 if {![info exists lto_fat_available_saved]} {
1903 if { ![check_gcc_plugin_enabled] } {
1904 set lto_fat_available_saved 0
1907 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1908 # -ffat-lto-objects, we always run LTO tests on Linux with
1910 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1911 set lto_fat_available_saved 1
1914 # Check if gcc supports -flto -fuse-linker-plugin
1916 if [board_info [target_info name] exists cflags] {
1917 append flags " [board_info [target_info name] cflags]"
1919 if [board_info [target_info name] exists ldflags] {
1920 append flags " [board_info [target_info name] ldflags]"
1923 set basename "tmpdir/lto[pid]"
1924 set src ${basename}.c
1925 set output ${basename}.out
1926 set f [open $src "w"]
1927 puts $f "int main() { return 0; }"
1929 if [is_remote host] {
1930 set src [remote_download host $src]
1932 set lto_fat_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
1933 remote_file host delete $src
1934 remote_file host delete $output
1937 return $lto_fat_available_saved
1940 # Returns true if the target compiler supports LTO and -shared
1941 proc check_lto_shared_available { } {
1942 global lto_shared_available_saved
1945 if {![info exists lto_shared_available_saved]} {
1946 if { ![check_gcc_plugin_enabled] } {
1947 set lto_shared_available_saved 0
1950 # This test will hide LTO bugs in ld. Since GCC 4.9 adds
1951 # -ffat-lto-objects, we always run LTO tests on Linux with
1953 if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
1954 set lto_shared_available_saved 1
1957 # Check if gcc supports -flto -fuse-linker-plugin -shared
1959 if [board_info [target_info name] exists cflags] {
1960 append flags " [board_info [target_info name] cflags]"
1962 if [board_info [target_info name] exists ldflags] {
1963 append flags " [board_info [target_info name] ldflags]"
1966 set basename "tmpdir/lto_shared[pid]"
1967 set src ${basename}.c
1968 set output ${basename}.so
1969 set f [open $src "w"]
1972 if [is_remote host] {
1973 set src [remote_download host $src]
1975 set lto_shared_available_saved [run_host_cmd_yesno "$CC" "$flags -shared -fPIC -flto -fuse-linker-plugin $src -o $output"]
1976 remote_file host delete $src
1977 remote_file host delete $output
1980 return $lto_shared_available_saved
1983 # Check if the assembler supports CFI statements.
1985 proc check_as_cfi { } {
1986 global check_as_cfi_result
1988 if [info exists check_as_cfi_result] {
1989 return $check_as_cfi_result
1991 set as_file "tmpdir/check_as_cfi.s"
1992 set as_fh [open $as_file w 0666]
1993 puts $as_fh "# Generated file. DO NOT EDIT"
1994 puts $as_fh "\t.cfi_startproc"
1995 puts $as_fh "\t.cfi_endproc"
1997 remote_download host $as_file
1998 verbose -log "Checking CFI support:"
1999 rename "perror" "check_as_cfi_perror"
2000 proc perror { args } { }
2001 set success [ld_assemble $as $as_file "/dev/null"]
2003 rename "check_as_cfi_perror" "perror"
2004 #remote_file host delete $as_file
2005 set check_as_cfi_result $success
2009 # Returns true if IFUNC works.
2011 proc check_ifunc_available { } {
2012 global ifunc_available_saved
2015 if {![info exists ifunc_available_saved]} {
2016 if { [which $CC] == 0 } {
2017 set ifunc_available_saved 0
2020 # Check if gcc supports -flto -fuse-linker-plugin
2022 if [board_info [target_info name] exists cflags] {
2023 append flags " [board_info [target_info name] cflags]"
2025 if [board_info [target_info name] exists ldflags] {
2026 append flags " [board_info [target_info name] ldflags]"
2029 set basename "tmpdir/ifunc[pid]"
2030 set src ${basename}.c
2031 set output ${basename}.out
2032 set f [open $src "w"]
2033 puts $f "extern int library_func2 (void);"
2034 puts $f "int main (void)"
2036 puts $f " if (library_func2 () != 2) __builtin_abort ();"
2037 puts $f " return 0; "
2039 puts $f "static int library_func1 (void) {return 2; }"
2040 puts $f "void *foo (void) __asm__ (\"library_func2\");"
2041 puts $f "void *foo (void) { return library_func1; }"
2042 puts $f "__asm__(\".type library_func2, %gnu_indirect_function\");"
2044 if [is_remote host] {
2045 set src [remote_download host $src]
2047 set ifunc_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
2048 if { $ifunc_available_saved == 1 } {
2049 set ifunc_available_saved [run_host_cmd_yesno "$output" ""]
2051 remote_file host delete $src
2052 remote_file host delete $output
2055 return $ifunc_available_saved
2058 # Returns true if ifunc attribute works.
2060 proc check_ifunc_attribute_available { } {
2061 global ifunc_attribute_available_saved
2064 if {![info exists ifunc_attribute_available_saved]} {
2065 if { [which $CC] == 0 } {
2066 set ifunc_attribute_available_saved 0
2069 # Check if gcc supports -flto -fuse-linker-plugin
2071 if [board_info [target_info name] exists cflags] {
2072 append flags " [board_info [target_info name] cflags]"
2074 if [board_info [target_info name] exists ldflags] {
2075 append flags " [board_info [target_info name] ldflags]"
2078 set basename "tmpdir/ifunc[pid]"
2079 set src ${basename}.c
2080 set output ${basename}.out
2081 set f [open $src "w"]
2082 puts $f "extern int library_func2 (void) __attribute__ ((ifunc (\"foo\")));"
2083 puts $f "int main (void)"
2085 puts $f " if (library_func2 () != 2) __builtin_abort ();"
2086 puts $f " return 0; "
2088 puts $f "static int library_func1 (void) {return 2; }"
2089 puts $f "void *foo (void) { return library_func1; }"
2091 if [is_remote host] {
2092 set src [remote_download host $src]
2094 set ifunc_attribute_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
2095 if { $ifunc_attribute_available_saved == 1 } {
2096 set ifunc_attribute_available_saved [run_host_cmd_yesno "$output" ""]
2098 remote_file host delete $src
2099 remote_file host delete $output
2102 return $ifunc_attribute_available_saved
2105 # Provide virtual target "cfi" for targets supporting CFI.
2107 rename "istarget" "istarget_ld"
2108 proc istarget { target } {
2109 if {$target == "cfi"} {
2110 return [check_as_cfi]
2112 return [istarget_ld $target]