1 # Support routines for LD testsuite.
2 # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 # 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
5 # This file is part of the GNU Binutils.
7 # This file is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 # Extract and print the version number of ld.
24 proc default_ld_version { ld } {
27 if { ![is_remote host] && [which $ld] == 0 } then {
28 perror "$ld does not exist"
32 remote_exec host "$ld --version" "" "/dev/null" "ld.version"
33 remote_upload host "ld.version"
34 set tmp [prune_warnings [file_contents "ld.version"]]
35 remote_file build delete "ld.version"
36 remote_file host delete "ld.version"
38 regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
39 if [info exists number] then {
40 clone_output "$ld $number\n"
44 proc run_host_cmd { prog command } {
47 if { ![is_remote host] && [which "$prog"] == 0 } then {
48 perror "$prog does not exist"
52 verbose -log "$prog $command"
53 set status [remote_exec host [concat sh -c [list "$prog $command 2>&1"]] "" "/dev/null" "ld.tmp"]
54 remote_upload host "ld.tmp"
55 set link_output [file_contents "ld.tmp"]
56 regsub "\n$" $link_output "" link_output
57 if { [lindex $status 0] != 0 && [string match "" $link_output] } then {
58 append link_output "child process exited abnormally"
60 remote_file build delete ld.tmp
61 remote_file host delete ld.tmp
63 if [string match "" $link_output] then {
67 verbose -log "$link_output"
71 proc run_host_cmd_yesno { prog command } {
74 set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
75 if [string match "" $exec_output] then {
81 # Link an object using relocation.
83 proc default_ld_relocate { ld target objects } {
86 remote_file host delete $target
87 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"]
90 # Check to see if ld is being invoked with a non-endian output format
92 proc is_endian_output_format { object_flags } {
94 if {[string match "*-oformat binary*" $object_flags] || \
95 [string match "*-oformat ieee*" $object_flags] || \
96 [string match "*-oformat ihex*" $object_flags] || \
97 [string match "*-oformat netbsd-core*" $object_flags] || \
98 [string match "*-oformat srec*" $object_flags] || \
99 [string match "*-oformat tekhex*" $object_flags] || \
100 [string match "*-oformat trad-core*" $object_flags] } then {
107 # Look for big-endian or little-endian switches in the multlib
108 # options and translate these into a -EB or -EL switch. Note
109 # we cannot rely upon proc process_multilib_options to do this
110 # for us because for some targets the compiler does not support
111 # -EB/-EL but it does support -mbig-endian/-mlittle-endian, and
112 # the site.exp file will include the switch "-mbig-endian"
113 # (rather than "big-endian") which is not detected by proc
114 # process_multilib_options.
116 proc big_or_little_endian {} {
118 if [board_info [target_info name] exists multilib_flags] {
119 set tmp_flags " [board_info [target_info name] multilib_flags]"
121 foreach x $tmp_flags {
123 {*big*endian eb EB -eb -EB -mb -meb} {
127 {*little*endian el EL -el -EL -ml -mel} {
139 # Link a program using ld.
141 proc default_ld_link { ld target objects } {
150 set objs "$HOSTING_CRT0 $objects"
151 set libs "$LIBS $HOSTING_LIBS"
153 if [is_endian_output_format $objects] then {
154 set flags [big_or_little_endian]
159 remote_file host delete $target
161 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"]
164 # Link a program using ld, without including any libraries.
166 proc default_ld_simple_link { ld target objects } {
171 if [is_endian_output_format $objects] then {
172 set flags [big_or_little_endian]
177 # If we are compiling with gcc, we want to add gcc_ld_flag to
178 # flags. Rather than determine this in some complex way, we guess
179 # based on the name of the compiler.
181 set ldparm [string first " " $ld]
183 if { $ldparm > 0 } then {
184 set ldflags [string range $ld $ldparm end]
185 set ldexe [string range $ld 0 $ldparm]
188 set ldexe [string replace $ldexe 0 [string last "/" $ldexe] ""]
189 if {[string match "*gcc*" $ldexe] || [string match "*++*" $ldexe]} then {
190 set ldflags "$gcc_ld_flag $ldflags"
193 remote_file host delete $target
195 set exec_output [run_host_cmd "$ld" "$ldflags $flags -o $target $objects"]
196 set exec_output [prune_warnings $exec_output]
198 # We don't care if we get a warning about a non-existent start
199 # symbol, since the default linker script might use ENTRY.
200 regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
202 if [string match "" $exec_output] then {
209 # Compile an object using cc.
211 proc default_ld_compile { cc source object } {
220 if {[llength $cc_prog] > 1} then {
221 set cc_prog [lindex $cc_prog 0]
223 if {![is_remote host] && [which $cc_prog] == 0} then {
224 perror "$cc_prog does not exist"
228 remote_file build delete "$object"
229 remote_file host delete "$object"
231 set flags "-I$srcdir/$subdir"
233 # If we are compiling with gcc, we want to add gcc_gas_flag to
234 # flags. Rather than determine this in some complex way, we guess
235 # based on the name of the compiler.
237 set ccparm [string first " " $cc]
239 if { $ccparm > 0 } then {
240 set ccflags [string range $cc $ccparm end]
241 set ccexe [string range $cc 0 $ccparm]
244 set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
245 if {[string match "*gcc*" $ccexe] || [string match "*++*" $ccexe]} then {
246 set flags "$gcc_gas_flag $flags"
249 if {[string match "*++*" $ccexe]} {
250 set flags "$flags $CXXFLAGS"
252 set flags "$flags $CFLAGS"
255 if [board_info [target_info name] exists multilib_flags] {
256 append flags " [board_info [target_info name] multilib_flags]"
259 verbose -log "$cc $flags $ccflags -c $source -o $object"
261 set status [remote_exec host [concat sh -c [list "$cc $flags $ccflags -c $source -o $object 2>&1"]] "" "/dev/null" "ld.tmp"]
262 remote_upload host "ld.tmp"
263 set exec_output [file_contents "ld.tmp"]
264 remote_file build delete "ld.tmp"
265 remote_file host delete "ld.tmp"
266 set exec_output [prune_warnings $exec_output]
267 if [string match "" $exec_output] then {
268 if {![file exists $object]} then {
269 regexp ".*/(\[^/\]*)$" $source all dobj
270 regsub "\\.c" $dobj ".o" realobj
271 verbose "looking for $realobj"
272 if {[remote_file host exists $realobj]} then {
273 verbose -log "mv $realobj $object"
274 remote_upload "$realobj" "$object"
276 perror "$object not found after compilation"
282 verbose -log "$exec_output"
283 perror "$source: compilation failed"
290 proc default_ld_assemble { as source object } {
294 if ![info exists ASFLAGS] { set ASFLAGS "" }
296 set flags [big_or_little_endian]
297 set exec_output [run_host_cmd "$as" "$flags $ASFLAGS -o $object $source"]
298 set exec_output [prune_warnings $exec_output]
299 if [string match "" $exec_output] then {
302 perror "$source: assembly failed"
307 # Run nm on a file, putting the result in the array nm_output.
309 proc default_ld_nm { nm nmflags object } {
314 if {[info exists nm_output]} {
318 if ![info exists NMFLAGS] { set NMFLAGS "" }
320 # Ensure consistent sorting of symbols
321 if {[info exists env(LC_ALL)]} {
322 set old_lc_all $env(LC_ALL)
326 verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
328 set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
329 if {[info exists old_lc_all]} {
330 set env(LC_ALL) $old_lc_all
334 remote_upload host "ld.stderr"
335 remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
336 set exec_output [prune_warnings [file_contents "ld.stderr"]]
337 remote_file host delete "ld.stderr"
338 remote_file build delete "ld.stderr"
339 if [string match "" $exec_output] then {
340 set file [open tmpdir/nm.out r]
341 while { [gets $file line] != -1 } {
343 if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
344 set name [string trimleft $name "_"]
345 verbose "Setting nm_output($name) to 0x$value" 2
346 set nm_output($name) 0x$value
352 verbose -log "$exec_output"
353 perror "$object: nm failed"
358 # Define various symbols needed when not linking against all
360 proc ld_simple_link_defsyms {} {
362 set flags "--defsym __stack_chk_fail=0"
364 # ARM targets call __gccmain
365 if {[istarget arm*-*-*] || \
366 [istarget strongarm*-*-*] || \
367 [istarget xscale*-*-*] || \
368 [istarget thumb-*-*] } {
369 append flags " --defsym __gccmain=0"
372 # Windows targets need __main, prefixed with underscore.
373 if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
374 append flags " --defsym ___main=0"
377 # PowerPC EABI code calls __eabi.
378 if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
379 append flags " --defsym __eabi=0"
382 # mn10200 code calls __truncsipsi2_d0_d2.
383 if {[istarget mn10200*-*-*]} then {
384 append flags " --defsym __truncsipsi2_d0_d2=0"
387 # m6811/m6812 code has references to soft registers.
388 if {[istarget m6811-*-*] || [istarget m6812-*-*]} {
389 append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
390 append flags " --defsym _.d3=0 --defsym _.d4=0"
391 append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
394 # Some OpenBSD targets have ProPolice and reference __guard and
395 # __stack_smash_handler.
396 if [istarget *-*-openbsd*] {
397 append flags " --defsym __guard=0"
398 append flags " --defsym __stack_smash_handler=0"
404 # True if the object format is known to be ELF.
406 proc is_elf_format {} {
407 if { ![istarget *-*-sysv4*]
408 && ![istarget *-*-unixware*]
409 && ![istarget *-*-elf*]
410 && ![istarget *-*-eabi*]
411 && ![istarget *-*-rtems*]
412 && ![istarget hppa*64*-*-hpux*]
413 && ![istarget ia64-*-hpux*]
414 && ![istarget *-*-linux*]
415 && ![istarget *-*-gnu*]
416 && ![istarget frv-*-uclinux*]
417 && ![istarget bfin-*-uclinux]
418 && ![istarget sh*-*-uclinux*]
419 && ![istarget *-*-irix5*]
420 && ![istarget *-*-irix6*]
421 && ![istarget *-*-netbsd*]
422 && ![istarget *-*-openbsd*]
423 && ![istarget *-*-solaris2*] } {
427 if { [istarget *-*-linux*aout*]
428 || [istarget *-*-linux*oldld*]
429 || [istarget h8500-*-rtems*]
430 || [istarget i960-*-rtems*]
431 || [istarget *-*-rtemscoff*] } {
435 if { ![istarget *-*-netbsdelf*]
436 && ([istarget *-*-netbsd*aout*]
437 || [istarget *-*-netbsdpe*]
438 || [istarget arm*-*-netbsd*]
439 || [istarget sparc-*-netbsd*]
440 || [istarget i*86-*-netbsd*]
441 || [istarget m68*-*-netbsd*]
442 || [istarget vax-*-netbsd*]
443 || [istarget ns32k-*-netbsd*]) } {
447 if { [istarget arm-*-openbsd*]
448 || [istarget i386-*-openbsd\[0-2\].*]
449 || [istarget i386-*-openbsd3.\[0-2\]]
450 || [istarget m68*-*-openbsd*]
451 || [istarget ns32k-*-openbsd*]
452 || [istarget sparc-*-openbsd\[0-2\].*]
453 || [istarget sparc-*-openbsd3.\[0-1\]]
454 || [istarget vax-*-openbsd*] } {
461 # True if the object format is known to be 64-bit ELF.
463 proc is_elf64 { binary_file } {
468 catch "exec $READELF $READELFFLAGS -h $binary_file > readelf.out" got
470 if ![string match "" $got] then {
474 if { ![regexp "\n\[ \]*Class:\[ \]*ELF(\[0-9\]+)\n" \
475 [file_contents readelf.out] nil readelf_size] } {
479 if { $readelf_size == "64" } {
486 # True if the object format is known to be a.out.
488 proc is_aout_format {} {
489 if { [istarget *-*-netbsdelf]
490 || [istarget sparc64-*-netbsd*]
491 || [istarget sparc64-*-openbsd*] } {
494 if { [istarget *-*-*\[ab\]out*]
495 || [istarget *-*-linux*oldld*]
496 || [istarget *-*-bsd*]
497 || [istarget *-*-msdos*]
498 || [istarget arm-*-netbsd*]
499 || [istarget arm-*-openbsd*]
500 || [istarget arm-*-riscix*]
501 || [istarget i?86-*-freebsd\[12\]*]
502 || [istarget i?86-*-netbsd*]
503 || [istarget i?86-*-openbsd\[0-2\]*]
504 || [istarget i?86-*-openbsd3.\[0-2\]*]
505 || [istarget i?86-*-vsta]
506 || [istarget i?86-*-mach*]
507 || [istarget m68*-*-netbsd*]
508 || [istarget m68*-*-openbsd*]
509 || [istarget ns32k-*-*]
510 || [istarget pdp11-*-*]
511 || [istarget sparc*-*-sunos4*]
512 || [istarget sparc*-*-netbsd*]
513 || [istarget sparc*-*-openbsd\[0-2\]*]
514 || [istarget sparc*-*-openbsd3.\[0-1\]*]
515 || [istarget sparc*-fujitsu-none]
516 || [istarget vax-dec-ultrix*]
517 || [istarget vax-*-netbsd] } {
523 # True if the object format is known to be PE COFF.
525 proc is_pecoff_format {} {
526 if { ![istarget *-*-mingw*]
527 && ![istarget *-*-cygwin*]
528 && ![istarget *-*-cegcc*]
529 && ![istarget *-*-pe*] } {
536 # Compares two files line-by-line.
537 # Returns differences if exist.
538 # Returns null if file(s) cannot be opened.
540 proc simple_diff { file_1 file_2 } {
546 if [file exists $file_1] then {
547 set file_a [open $file_1 r]
549 warning "$file_1 doesn't exist"
553 if [file exists $file_2] then {
554 set file_b [open $file_2 r]
556 fail "$file_2 doesn't exist"
560 verbose "# Diff'ing: $file_1 $file_2\n" 2
562 while { [gets $file_a line] != $eof } {
563 if [regexp "^#.*$" $line] then {
571 while { [gets $file_b line] != $eof } {
572 if [regexp "^#.*$" $line] then {
580 for { set i 0 } { $i < [llength $list_a] } { incr i } {
581 set line_a [lindex $list_a $i]
582 set line_b [lindex $list_b $i]
584 verbose "\t$file_1: $i: $line_a\n" 3
585 verbose "\t$file_2: $i: $line_b\n" 3
586 if [string compare $line_a $line_b] then {
587 verbose -log "\t$file_1: $i: $line_a\n"
588 verbose -log "\t$file_2: $i: $line_b\n"
595 if { [llength $list_a] != [llength $list_b] } {
600 if $differences<1 then {
606 # Copied from gas testsuite, tweaked and further extended.
608 # Assemble a .s file, then run some utility on it and check the output.
610 # There should be an assembly language file named FILE.s in the test
611 # suite directory, and a pattern file called FILE.d. `run_dump_test'
612 # will assemble FILE.s, run some tool like `objdump', `objcopy', or
613 # `nm' on the .o file to produce textual output, and then analyze that
614 # with regexps. The FILE.d file specifies what program to run, and
615 # what to expect in its output.
617 # The FILE.d file begins with zero or more option lines, which specify
618 # flags to pass to the assembler, the program to run to dump the
619 # assembler's output, and the options it wants. The option lines have
624 # OPTION is the name of some option, like "name" or "objdump", and
625 # VALUE is OPTION's value. The valid options are described below.
626 # Whitespace is ignored everywhere, except within VALUE. The option
627 # list ends with the first line that doesn't match the above syntax
628 # (hmm, not great for error detection).
630 # The interesting options are:
633 # The name of this test, passed to DejaGNU's `pass' and `fail'
634 # commands. If omitted, this defaults to FILE, the root of the
635 # .s and .d files' names.
638 # When assembling, pass FLAGS to the assembler.
639 # If assembling several files, you can pass different assembler
640 # options in the "source" directives. See below.
643 # Link assembled files using FLAGS, in the order of the "source"
644 # directives, when using multiple files.
646 # ld_after_inputfiles: FLAGS
647 # Similar to "ld", but put after all input files.
649 # objcopy_linked_file: FLAGS
650 # Run objcopy on the linked file with the specified flags.
651 # This lets you transform the linked file using objcopy, before the
652 # result is analyzed by an analyzer program specified below (which
653 # may in turn *also* be objcopy).
656 # The name of the program to run to analyze the .o file produced
657 # by the assembler or the linker output. This can be omitted;
658 # run_dump_test will guess which program to run by seeing which of
659 # the flags options below is present.
664 # Use the specified program to analyze the assembler or linker
665 # output file, and pass it FLAGS, in addition to the output name.
666 # Note that they are run with LC_ALL=C in the environment to give
667 # consistent sorting of symbols.
669 # source: SOURCE [FLAGS]
670 # Assemble the file SOURCE.s using the flags in the "as" directive
671 # and the (optional) FLAGS. If omitted, the source defaults to
673 # This is useful if several .d files want to share a .s file.
674 # More than one "source" directive can be given, which is useful
675 # when testing linking.
678 # The test is expected to fail on TARGET. This may occur more than
682 # Only run the test for TARGET. This may occur more than once; the
683 # target being tested must match at least one. You may provide target
684 # name "cfi" for any target supporting the CFI statements.
687 # Do not run the test for TARGET. This may occur more than once;
688 # the target being tested must not match any of them.
691 # An error with message matching REGEX must be emitted for the test
692 # to pass. The PROG, objdump, nm and objcopy options have no
693 # meaning and need not supplied if this is present. Multiple "error"
694 # directives append to the expected linker error message.
697 # Expect a linker warning matching REGEX. It is an error to issue
698 # both "error" and "warning". Multiple "warning" directives
699 # append to the expected linker warning message.
701 # Each option may occur at most once unless otherwise mentioned.
703 # After the option lines come regexp lines. `run_dump_test' calls
704 # `regexp_diff' to compare the output of the dumping tool against the
705 # regexps in FILE.d. `regexp_diff' is defined later in this file; see
706 # further comments there.
708 proc run_dump_test { name } {
710 global OBJDUMP NM AS OBJCOPY READELF LD
711 global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
712 global host_triplet runtests
715 if [string match "*/*" $name] {
717 set name [file tail $name]
719 set file "$srcdir/$subdir/$name"
722 if ![runtest_file_p $runtests $name] then {
726 set opt_array [slurp_options "${file}.d"]
727 if { $opt_array == -1 } {
728 perror "error reading options from $file.d"
729 unresolved $subdir/$name
732 set dumpfile tmpdir/dump.out
737 set opts(ld_after_inputfiles) {}
740 set opts(notarget) {}
750 set opts(objcopy_linked_file) {}
751 set asflags(${file}.s) {}
753 foreach i $opt_array {
754 set opt_name [lindex $i 0]
755 set opt_val [lindex $i 1]
756 if ![info exists opts($opt_name)] {
757 perror "unknown option $opt_name in file $file.d"
758 unresolved $subdir/$name
762 switch -- $opt_name {
769 # Move any source-specific as-flags to a separate array to
770 # simplify processing.
771 if { [llength $opt_val] > 1 } {
772 set asflags([lindex $opt_val 0]) [lrange $opt_val 1 end]
773 set opt_val [lindex $opt_val 0]
775 set asflags($opt_val) {}
779 if [string length $opts($opt_name)] {
780 perror "option $opt_name multiply set in $file.d"
781 unresolved $subdir/$name
785 # A single "# ld:" with no options should do the right thing.
786 if { $opt_name == "ld" } {
789 # Likewise objcopy_linked_file.
790 if { $opt_name == "objcopy_linked_file" } {
795 if { $opt_name == "as" || $opt_name == "ld" } {
796 set opt_val [subst $opt_val]
798 set opts($opt_name) [concat $opts($opt_name) $opt_val]
800 foreach opt { as ld } {
801 regsub {\[big_or_little_endian\]} $opts($opt) \
802 [big_or_little_endian] opts($opt)
805 # Decide early whether we should run the test for this target.
806 if { [llength $opts(target)] > 0 } {
808 foreach targ $opts(target) {
809 if [istarget $targ] {
814 if { $targmatch == 0 } {
818 foreach targ $opts(notarget) {
819 if [istarget $targ] {
825 # It's meaningless to require an output-testing method when we
827 if { $opts(error) == "" } {
828 if {$opts(PROG) != ""} {
829 switch -- $opts(PROG) {
830 objdump { set program objdump }
831 nm { set program nm }
832 objcopy { set program objcopy }
833 readelf { set program readelf }
835 { perror "unrecognized program option $opts(PROG) in $file.d"
836 unresolved $subdir/$name
840 # Guess which program to run, by seeing which option was specified.
841 foreach p {objdump objcopy nm readelf} {
842 if {$opts($p) != ""} {
843 if {$program != ""} {
844 perror "ambiguous dump program in $file.d"
845 unresolved $subdir/$name
853 if { $program == "" && $opts(warning) == "" } {
854 perror "dump program unspecified in $file.d"
855 unresolved $subdir/$name
860 if { $opts(name) == "" } {
861 set testname "$subdir/$name"
863 set testname $opts(name)
866 if { $opts(source) == "" } {
867 set sourcefiles [list ${file}.s]
870 foreach sf $opts(source) {
871 if { [string match "/*" $sf] } {
872 lappend sourcefiles "$sf"
874 lappend sourcefiles "$srcdir/$subdir/$sf"
876 # Must have asflags indexed on source name.
877 set asflags($srcdir/$subdir/$sf) $asflags($sf)
881 # Time to setup xfailures.
882 foreach targ $opts(xfail) {
886 # Assemble each file.
888 for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
889 set sourcefile [lindex $sourcefiles $i]
891 set objfile "tmpdir/dump$i.o"
892 catch "exec rm -f $objfile" exec_output
893 lappend objfiles $objfile
894 set cmd "$AS $ASFLAGS $opts(as) $asflags($sourcefile) -o $objfile $sourcefile"
897 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
898 remote_upload host "ld.tmp"
899 set comp_output [prune_warnings [file_contents "ld.tmp"]]
900 remote_file host delete "ld.tmp"
901 remote_file build delete "ld.tmp"
903 if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
904 send_log "$comp_output\n"
905 verbose "$comp_output" 3
907 set exitstat "succeeded"
908 if { $cmdret != 0 } { set exitstat "failed" }
909 verbose -log "$exitstat with: <$comp_output>"
915 set expmsg $opts(error)
916 if { $opts(warning) != "" } {
917 if { $expmsg != "" } {
918 perror "$testname: mixing error and warning test-directives"
921 set expmsg $opts(warning)
924 # Perhaps link the file(s).
926 set objfile "tmpdir/dump"
927 catch "exec rm -f $objfile" exec_output
929 # Add -L$srcdir/$subdir so that the linker command can use
930 # linker scripts in the source directory.
931 set cmd "$LD $LDFLAGS -L$srcdir/$subdir \
932 $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
935 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
936 remote_upload host "ld.tmp"
937 set comp_output [file_contents "ld.tmp"]
938 remote_file host delete "ld.tmp"
939 remote_file build delete "ld.tmp"
940 set cmdret [lindex $cmdret 0]
942 if { $cmdret == 0 && $run_objcopy } {
944 set objfile "tmpdir/dump1"
945 remote_file host delete $objfile
947 # Note that we don't use OBJCOPYFLAGS here; any flags must be
948 # explicitly specified.
949 set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
952 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
953 remote_upload host "ld.tmp"
954 append comp_output [file_contents "ld.tmp"]
955 remote_file host delete "ld.tmp"
956 remote_file build delete "ld.tmp"
957 set cmdret [lindex $cmdret 0]
960 regsub "\n$" $comp_output "" comp_output
961 if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then {
962 set exitstat "succeeded"
963 if { $cmdret != 0 } { set exitstat "failed" }
964 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
965 send_log "$comp_output\n"
966 verbose "$comp_output" 3
968 if { ($expmsg == "") == ($comp_output == "") \
969 && [regexp $expmsg $comp_output] \
970 && (($cmdret == 0) == ($opts(error) == "")) } {
971 # We have the expected output from ld.
972 if { $opts(error) != "" || $program == "" } {
977 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
983 set objfile "tmpdir/dump0.o"
986 # We must not have expected failure if we get here.
987 if { $opts(error) != "" } {
992 set progopts1 $opts($program)
993 eval set progopts \$[string toupper $program]FLAGS
994 eval set binary \$[string toupper $program]
996 if { ![is_remote host] && [which $binary] == 0 } {
1001 if { $progopts1 == "" } { set $progopts1 "-r" }
1002 verbose "running $binary $progopts $progopts1" 3
1004 # Objcopy, unlike the other two, won't send its output to stdout,
1005 # so we have to run it specially.
1006 set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
1007 if { $program == "objcopy" } {
1008 set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
1011 # Ensure consistent sorting of symbols
1012 if {[info exists env(LC_ALL)]} {
1013 set old_lc_all $env(LC_ALL)
1017 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
1018 set cmdret [lindex $cmdret 0]
1019 remote_upload host "ld.tmp"
1020 set comp_output [prune_warnings [file_contents "ld.tmp"]]
1021 remote_file host delete "ld.tmp"
1022 remote_file build delete "ld.tmp"
1023 if {[info exists old_lc_all]} {
1024 set env(LC_ALL) $old_lc_all
1028 if { $cmdret != 0 || $comp_output != "" } {
1029 send_log "exited abnormally with $cmdret, output:$comp_output\n"
1034 if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
1035 if { [regexp_diff $dumpfile "${file}.d"] } then {
1037 if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
1044 proc slurp_options { file } {
1045 if [catch { set f [open $file r] } x] {
1046 #perror "couldn't open `$file': $x"
1051 # whitespace expression
1054 # whitespace is ignored anywhere except within the options list;
1055 # option names are alphabetic plus underscore only.
1056 set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$"
1057 while { [gets $f line] != -1 } {
1058 set line [string trim $line]
1059 # Whitespace here is space-tab.
1060 if [regexp $pat $line xxx opt_name opt_val] {
1062 lappend opt_array [list $opt_name $opt_val]
1071 # regexp_diff, copied from gas, based on simple_diff above.
1072 # compares two files line-by-line
1073 # file1 contains strings, file2 contains regexps and #-comments
1074 # blank lines are ignored in either file
1075 # returns non-zero if differences exist
1077 proc regexp_diff { file_1 file_2 } {
1086 if [file exists $file_1] then {
1087 set file_a [open $file_1 r]
1089 warning "$file_1 doesn't exist"
1093 if [file exists $file_2] then {
1094 set file_b [open $file_2 r]
1096 fail "$file_2 doesn't exist"
1101 verbose " Regexp-diff'ing: $file_1 $file_2" 2
1106 while { [string length $line_a] == 0 } {
1107 if { [gets $file_a line_a] == $eof } {
1112 while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
1113 if [ string match "#pass" $line_b ] {
1117 } elseif [ string match "#failif" $line_b ] {
1118 send_log "fail if no difference\n"
1119 verbose "fail if no difference" 3
1121 } elseif [ string match "#..." $line_b ] {
1122 if { [gets $file_b line_b] == $eof } {
1127 verbose "looking for \"^$line_b$\"" 3
1128 while { ![regexp "^$line_b$" "$line_a"] } {
1129 verbose "skipping \"$line_a\"" 3
1130 if { [gets $file_a line_a] == $eof } {
1137 if { [gets $file_b line_b] == $eof } {
1145 } elseif { $end_1 && $end_2 } {
1147 } elseif { $end_1 } {
1148 send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
1149 verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
1152 } elseif { $end_2 } {
1153 send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
1154 verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
1158 verbose "regexp \"^$line_b$\"\nline \"$line_a\"" 3
1159 if ![regexp "^$line_b$" "$line_a"] {
1160 verbose "regexp_diff match failure\n" 3
1161 send_log "regexp_diff match failure\n"
1162 send_log "regexp \"^$line_b$\"\nline \"$line_a\"\n"
1168 if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
1169 send_log "$file_1 and $file_2 are different lengths\n"
1170 verbose "$file_1 and $file_2 are different lengths" 3
1174 if { $fail_if_match } {
1175 if { $differences == 0 } {
1188 proc file_contents { filename } {
1189 set file [open $filename r]
1190 set contents [read $file]
1195 proc set_file_contents { filename contents } {
1196 set file [open $filename w]
1197 puts $file "$contents"
1201 # Create an archive using ar
1203 proc ar_simple_create { ar aropts target objects } {
1204 remote_file host delete $target
1206 set exec_output [run_host_cmd "$ar" "$aropts rc $target $objects"]
1207 set exec_output [prune_warnings $exec_output]
1209 if [string match "" $exec_output] then {
1210 send_log "$exec_output\n"
1217 # List contains test-items with 3 items followed by 2 lists, one item and
1218 # one optional item:
1219 # 0:name 1:ld/ar options 2:assembler options
1220 # 3:filenames of assembler files 4: action and options. 5: name of output file
1221 # 6:compiler flags (optional)
1224 # objdump: Apply objdump options on result. Compare with regex (last arg).
1225 # nm: Apply nm options on result. Compare with regex (last arg).
1226 # readelf: Apply readelf options on result. Compare with regex (last arg).
1227 # ld: Don't apply anything on result. Compare output during linking with
1228 # regex (second arg). Note that this *must* be the first action if it
1229 # is to be used at all; in all other cases, any output from the linker
1230 # during linking is treated as a sign of an error and FAILs the test.
1232 proc run_ld_link_tests { ldtests } {
1247 foreach testitem $ldtests {
1248 set testname [lindex $testitem 0]
1250 if ![runtest_file_p $runtests $testname] then {
1254 set ld_options [lindex $testitem 1]
1255 set as_options [lindex $testitem 2]
1256 set src_files [lindex $testitem 3]
1257 set actions [lindex $testitem 4]
1258 set binfile tmpdir/[lindex $testitem 5]
1259 set cflags [lindex $testitem 6]
1266 # verbose -log "Testname is $testname"
1267 # verbose -log "ld_options is $ld_options"
1268 # verbose -log "as_options is $as_options"
1269 # verbose -log "src_files is $src_files"
1270 # verbose -log "actions is $actions"
1271 # verbose -log "binfile is $binfile"
1273 # Assemble each file in the test.
1274 foreach src_file $src_files {
1275 set objfile "tmpdir/[file rootname $src_file].o"
1276 lappend objfiles $objfile
1278 if { [file extension $src_file] == ".c" } {
1279 set as_file "tmpdir/[file rootname $src_file].s"
1280 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
1285 set as_file "$srcdir/$subdir/$src_file"
1287 if ![ld_assemble $as "$as_options $as_file" $objfile] {
1293 # Catch assembler errors.
1294 if { $is_unresolved != 0 } {
1295 unresolved $testname
1299 if { [regexp ".*\\.a$" $binfile] } {
1300 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles"] } {
1306 } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles"] } {
1308 set ld_output "$exec_output"
1313 if { $failed == 0 } {
1314 foreach actionlist $actions {
1315 set action [lindex $actionlist 0]
1316 set progopts [lindex $actionlist 1]
1318 # There are actions where we run regexp_diff on the
1319 # output, and there are other actions (presumably).
1320 # Handling of the former look the same.
1324 { set dump_prog $objdump }
1326 { set dump_prog $nm }
1328 { set dump_prog $READELF }
1330 { set dump_prog "ld" }
1333 perror "Unrecognized action $action"
1339 if { $action == "ld" } {
1340 set dumpfile [lindex $actionlist 1]
1341 verbose "dumpfile is $dumpfile"
1342 set_file_contents "tmpdir/ld.messages" "$ld_output"
1343 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
1344 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$dumpfile"] } then {
1345 verbose "output is $ld_output" 2
1350 } elseif { $maybe_failed != 0 } {
1353 } elseif { $dump_prog != "" } {
1354 set dumpfile [lindex $actionlist 2]
1355 set binary $dump_prog
1357 # Ensure consistent sorting of symbols
1358 if {[info exists env(LC_ALL)]} {
1359 set old_lc_all $env(LC_ALL)
1362 set cmd "$binary $progopts $binfile"
1363 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
1365 remote_upload host "ld.stderr"
1366 set comp_output [prune_warnings [file_contents "ld.stderr"]]
1367 remote_file host delete "ld.stderr"
1368 remote_file build delete "ld.stderr"
1370 if {[info exists old_lc_all]} {
1371 set env(LC_ALL) $old_lc_all
1376 if ![string match "" $comp_output] then {
1377 send_log "$comp_output\n"
1382 remote_upload host "dump.out"
1384 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1385 verbose "output is [file_contents "dump.out"]" 2
1387 remote_file build delete "dump.out"
1388 remote_file host delete "dump.out"
1391 remote_file build delete "dump.out"
1392 remote_file host delete "dump.out"
1396 if { $failed != 0 } {
1398 } else { if { $is_unresolved == 0 } {
1403 # Catch action errors.
1404 if { $is_unresolved != 0 } {
1405 unresolved $testname
1411 # This definition is taken from an unreleased version of DejaGnu. Once
1412 # that version gets released, and has been out in the world for a few
1413 # months at least, it may be safe to delete this copy.
1414 if ![string length [info proc prune_warnings]] {
1416 # prune_warnings -- delete various system verbosities from TEXT
1419 # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
1421 # Sites with particular verbose os's may wish to override this in site.exp.
1423 proc prune_warnings { text } {
1424 # This is from sun4's. Do it for all machines for now.
1425 # The "\\1" is to try to preserve a "\n" but only if necessary.
1426 regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
1428 # It might be tempting to get carried away and delete blank lines, etc.
1429 # Just delete *exactly* what we're ask to, and that's it.
1434 # targets_to_xfail is a list of target triplets to be xfailed.
1435 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
1436 # and 3 optional items:
1439 # 2:assembler options
1440 # 3:filenames of source files
1441 # 4:name of output file
1443 # 6:compiler flags (optional)
1444 # 7:language (optional)
1445 # 8:linker warning (optional)
1447 proc run_ld_link_exec_tests { targets_to_xfail ldtests } {
1460 foreach testitem $ldtests {
1461 foreach target $targets_to_xfail {
1464 set testname [lindex $testitem 0]
1465 set ld_options [lindex $testitem 1]
1466 set as_options [lindex $testitem 2]
1467 set src_files [lindex $testitem 3]
1468 set binfile tmpdir/[lindex $testitem 4]
1469 set expfile [lindex $testitem 5]
1470 set cflags [lindex $testitem 6]
1471 set lang [lindex $testitem 7]
1472 set warning [lindex $testitem 8]
1476 # verbose -log "Testname is $testname"
1477 # verbose -log "ld_options is $ld_options"
1478 # verbose -log "as_options is $as_options"
1479 # verbose -log "src_files is $src_files"
1480 # verbose -log "actions is $actions"
1481 # verbose -log "binfile is $binfile"
1483 # Assemble each file in the test.
1484 foreach src_file $src_files {
1485 set objfile "tmpdir/[file rootname $src_file].o"
1486 lappend objfiles $objfile
1488 # We ignore warnings since some compilers may generate
1489 # incorrect section attributes and the assembler will warn
1491 if { [ string match "c++" $lang ] } {
1492 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1494 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1497 # We have to use $CC to build PIE and shared library.
1498 if { [ string match "c" $lang ] } {
1499 set link_proc ld_simple_link
1501 } elseif { [ string match "c++" $lang ] } {
1502 set link_proc ld_simple_link
1504 } elseif { [ string match "-shared" $ld_options ] \
1505 || [ string match "-pie" $ld_options ] } {
1506 set link_proc ld_simple_link
1509 set link_proc ld_link
1513 if ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
1519 # Check if exec_output is expected.
1520 if { $warning != "" } then {
1521 verbose -log "returned with: <$exec_output>, expected: <$warning>"
1522 if { [regexp $warning $exec_output] } then {
1529 if { $failed == 0 } {
1530 send_log "Running: $binfile > $binfile.out\n"
1531 verbose "Running: $binfile > $binfile.out"
1532 catch "exec $binfile > $binfile.out" exec_output
1534 if ![string match "" $exec_output] then {
1535 send_log "$exec_output\n"
1536 verbose "$exec_output" 1
1539 send_log "diff $binfile.out $srcdir/$subdir/$expfile\n"
1540 verbose "diff $binfile.out $srcdir/$subdir/$expfile"
1541 catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output
1542 set exec_output [prune_warnings $exec_output]
1544 if ![string match "" $exec_output] then {
1545 send_log "$exec_output\n"
1546 verbose "$exec_output" 1
1552 if { $failed != 0 } {
1562 # List contains test-items with 3 items followed by 2 lists, one item and
1563 # one optional item:
1565 # 1:ld or ar options
1567 # 3:filenames of source files
1568 # 4:action and options.
1569 # 5:name of output file
1570 # 6:language (optional)
1573 # objdump: Apply objdump options on result. Compare with regex (last arg).
1574 # nm: Apply nm options on result. Compare with regex (last arg).
1575 # readelf: Apply readelf options on result. Compare with regex (last arg).
1577 proc run_cc_link_tests { ldtests } {
1590 foreach testitem $ldtests {
1591 set testname [lindex $testitem 0]
1592 set ldflags [lindex $testitem 1]
1593 set cflags [lindex $testitem 2]
1594 set src_files [lindex $testitem 3]
1595 set actions [lindex $testitem 4]
1596 set binfile tmpdir/[lindex $testitem 5]
1597 set lang [lindex $testitem 6]
1602 # Compile each file in the test.
1603 foreach src_file $src_files {
1604 set objfile "tmpdir/[file rootname $src_file].o"
1605 lappend objfiles $objfile
1607 # We ignore warnings since some compilers may generate
1608 # incorrect section attributes and the assembler will warn
1610 if { [ string match "c++" $lang ] } {
1611 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1613 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1617 # Clear error and warning counts.
1620 if { [ string match "c++" $lang ] } {
1626 if { [regexp ".*\\.a$" $binfile] } {
1627 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
1633 } elseif { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
1640 if { $failed == 0 } {
1641 foreach actionlist $actions {
1642 set action [lindex $actionlist 0]
1643 set progopts [lindex $actionlist 1]
1645 # There are actions where we run regexp_diff on the
1646 # output, and there are other actions (presumably).
1647 # Handling of the former look the same.
1651 { set dump_prog $objdump }
1653 { set dump_prog $nm }
1655 { set dump_prog $READELF }
1658 perror "Unrecognized action $action"
1664 if { $dump_prog != "" } {
1665 set dumpfile [lindex $actionlist 2]
1666 set binary $dump_prog
1668 # Ensure consistent sorting of symbols
1669 if {[info exists env(LC_ALL)]} {
1670 set old_lc_all $env(LC_ALL)
1673 set cmd "$binary $progopts $binfile > dump.out"
1675 catch "exec $cmd" comp_output
1676 if {[info exists old_lc_all]} {
1677 set env(LC_ALL) $old_lc_all
1681 set comp_output [prune_warnings $comp_output]
1683 if ![string match "" $comp_output] then {
1684 send_log "$comp_output\n"
1689 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1690 verbose "output is [file_contents "dump.out"]" 2
1697 if { $failed != 0 } {
1699 } else { if { $is_unresolved == 0 } {
1704 # Catch action errors.
1705 if { $is_unresolved != 0 } {
1706 unresolved $testname
1712 # Returns true if --gc-sections is supported on the target.
1714 proc check_gc_sections_available { } {
1715 global gc_sections_available_saved
1718 if {![info exists gc_sections_available_saved]} {
1719 # Some targets don't support gc-sections despite whatever's
1720 # advertised by ld's options.
1721 if {[istarget arc-*-*]
1722 || [istarget d30v-*-*]
1723 || [istarget dlx-*-*]
1724 || [istarget i960-*-*]
1725 || [istarget or32-*-*]
1726 || [istarget pj*-*-*]
1727 || [istarget alpha-*-*]
1728 || [istarget hppa64-*-*]
1729 || [istarget i370-*-*]
1730 || [istarget i860-*-*]
1731 || [istarget ia64-*-*]
1732 || [istarget mep-*-*]
1733 || [istarget mn10200-*-*]
1734 || [istarget *-*-cygwin]
1735 || [istarget *-*-mingw*] } {
1736 set gc_sections_available_saved 0
1740 # elf2flt uses -q (--emit-relocs), which is incompatible with
1742 if { [board_info target exists ldflags]
1743 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1744 set gc_sections_available_saved 0
1748 # Check if the ld used by gcc supports --gc-sections.
1749 set ld_output [remote_exec host $ld "--help"]
1750 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1751 set gc_sections_available_saved 1
1753 set gc_sections_available_saved 0
1756 return $gc_sections_available_saved
1759 # Returns true if the target ld supports the plugin API.
1760 proc check_plugin_api_available { } {
1761 global plugin_api_available_saved
1763 if {![info exists plugin_api_available_saved]} {
1764 # Check if the ld used by gcc supports --plugin.
1765 set ld_output [remote_exec host $ld "--help"]
1766 if { [ string first "-plugin" $ld_output ] >= 0 } {
1767 set plugin_api_available_saved 1
1769 set plugin_api_available_saved 0
1772 return $plugin_api_available_saved
1775 # Check if the assembler supports CFI statements.
1777 proc check_as_cfi { } {
1778 global check_as_cfi_result
1780 if [info exists check_as_cfi_result] {
1781 return $check_as_cfi_result
1783 set as_file "tmpdir/check_as_cfi.s"
1784 set as_fh [open $as_file w 0666]
1785 puts $as_fh "# Generated file. DO NOT EDIT"
1786 puts $as_fh "\t.cfi_startproc"
1787 puts $as_fh "\t.cfi_endproc"
1789 remote_download host $as_file
1790 verbose -log "Checking CFI support:"
1791 rename "perror" "check_as_cfi_perror"
1792 proc perror { args } { }
1793 set success [ld_assemble $as $as_file "/dev/null"]
1795 rename "check_as_cfi_perror" "perror"
1796 #remote_file host delete $as_file
1797 set check_as_cfi_result $success
1801 # Provide virtual target "cfi" for targets supporting CFI.
1803 rename "istarget" "istarget_ld"
1804 proc istarget { target } {
1805 if {$target == "cfi"} {
1806 return [check_as_cfi]
1808 return [istarget_ld $target]