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 frv-*-uclinux*]
416 && ![istarget bfin-*-uclinux]
417 && ![istarget sh*-*-uclinux*]
418 && ![istarget *-*-irix5*]
419 && ![istarget *-*-irix6*]
420 && ![istarget *-*-netbsd*]
421 && ![istarget *-*-openbsd*]
422 && ![istarget *-*-solaris2*] } {
426 if { [istarget *-*-linux*aout*]
427 || [istarget *-*-linux*oldld*]
428 || [istarget h8500-*-rtems*]
429 || [istarget i960-*-rtems*]
430 || [istarget *-*-rtemscoff*] } {
434 if { ![istarget *-*-netbsdelf*]
435 && ([istarget *-*-netbsd*aout*]
436 || [istarget *-*-netbsdpe*]
437 || [istarget arm*-*-netbsd*]
438 || [istarget sparc-*-netbsd*]
439 || [istarget i*86-*-netbsd*]
440 || [istarget m68*-*-netbsd*]
441 || [istarget vax-*-netbsd*]
442 || [istarget ns32k-*-netbsd*]) } {
446 if { [istarget arm-*-openbsd*]
447 || [istarget i386-*-openbsd\[0-2\].*]
448 || [istarget i386-*-openbsd3.\[0-2\]]
449 || [istarget m68*-*-openbsd*]
450 || [istarget ns32k-*-openbsd*]
451 || [istarget sparc-*-openbsd\[0-2\].*]
452 || [istarget sparc-*-openbsd3.\[0-1\]]
453 || [istarget vax-*-openbsd*] } {
460 # True if the object format is known to be 64-bit ELF.
462 proc is_elf64 { binary_file } {
467 catch "exec $READELF $READELFFLAGS -h $binary_file > readelf.out" got
469 if ![string match "" $got] then {
473 if { ![regexp "\n\[ \]*Class:\[ \]*ELF(\[0-9\]+)\n" \
474 [file_contents readelf.out] nil readelf_size] } {
478 if { $readelf_size == "64" } {
485 # True if the object format is known to be a.out.
487 proc is_aout_format {} {
488 if { [istarget *-*-netbsdelf]
489 || [istarget sparc64-*-netbsd*]
490 || [istarget sparc64-*-openbsd*] } {
493 if { [istarget *-*-*\[ab\]out*]
494 || [istarget *-*-linux*oldld*]
495 || [istarget *-*-bsd*]
496 || [istarget *-*-msdos*]
497 || [istarget arm-*-netbsd*]
498 || [istarget arm-*-openbsd*]
499 || [istarget arm-*-riscix*]
500 || [istarget i?86-*-freebsd\[12\]*]
501 || [istarget i?86-*-netbsd*]
502 || [istarget i?86-*-openbsd\[0-2\]*]
503 || [istarget i?86-*-openbsd3.\[0-2\]*]
504 || [istarget i?86-*-vsta]
505 || [istarget i?86-*-mach*]
506 || [istarget m68*-*-netbsd*]
507 || [istarget m68*-*-openbsd*]
508 || [istarget ns32k-*-*]
509 || [istarget pdp11-*-*]
510 || [istarget sparc*-*-sunos4*]
511 || [istarget sparc*-*-netbsd*]
512 || [istarget sparc*-*-openbsd\[0-2\]*]
513 || [istarget sparc*-*-openbsd3.\[0-1\]*]
514 || [istarget sparc*-fujitsu-none]
515 || [istarget vax-dec-ultrix*]
516 || [istarget vax-*-netbsd] } {
522 # True if the object format is known to be PE COFF.
524 proc is_pecoff_format {} {
525 if { ![istarget *-*-mingw*]
526 && ![istarget *-*-cygwin*]
527 && ![istarget *-*-cegcc*]
528 && ![istarget *-*-pe*] } {
535 # Compares two files line-by-line.
536 # Returns differences if exist.
537 # Returns null if file(s) cannot be opened.
539 proc simple_diff { file_1 file_2 } {
545 if [file exists $file_1] then {
546 set file_a [open $file_1 r]
548 warning "$file_1 doesn't exist"
552 if [file exists $file_2] then {
553 set file_b [open $file_2 r]
555 fail "$file_2 doesn't exist"
559 verbose "# Diff'ing: $file_1 $file_2\n" 2
561 while { [gets $file_a line] != $eof } {
562 if [regexp "^#.*$" $line] then {
570 while { [gets $file_b line] != $eof } {
571 if [regexp "^#.*$" $line] then {
579 for { set i 0 } { $i < [llength $list_a] } { incr i } {
580 set line_a [lindex $list_a $i]
581 set line_b [lindex $list_b $i]
583 verbose "\t$file_1: $i: $line_a\n" 3
584 verbose "\t$file_2: $i: $line_b\n" 3
585 if [string compare $line_a $line_b] then {
586 verbose -log "\t$file_1: $i: $line_a\n"
587 verbose -log "\t$file_2: $i: $line_b\n"
594 if { [llength $list_a] != [llength $list_b] } {
599 if $differences<1 then {
605 # Copied from gas testsuite, tweaked and further extended.
607 # Assemble a .s file, then run some utility on it and check the output.
609 # There should be an assembly language file named FILE.s in the test
610 # suite directory, and a pattern file called FILE.d. `run_dump_test'
611 # will assemble FILE.s, run some tool like `objdump', `objcopy', or
612 # `nm' on the .o file to produce textual output, and then analyze that
613 # with regexps. The FILE.d file specifies what program to run, and
614 # what to expect in its output.
616 # The FILE.d file begins with zero or more option lines, which specify
617 # flags to pass to the assembler, the program to run to dump the
618 # assembler's output, and the options it wants. The option lines have
623 # OPTION is the name of some option, like "name" or "objdump", and
624 # VALUE is OPTION's value. The valid options are described below.
625 # Whitespace is ignored everywhere, except within VALUE. The option
626 # list ends with the first line that doesn't match the above syntax
627 # (hmm, not great for error detection).
629 # The interesting options are:
632 # The name of this test, passed to DejaGNU's `pass' and `fail'
633 # commands. If omitted, this defaults to FILE, the root of the
634 # .s and .d files' names.
637 # When assembling, pass FLAGS to the assembler.
638 # If assembling several files, you can pass different assembler
639 # options in the "source" directives. See below.
642 # Link assembled files using FLAGS, in the order of the "source"
643 # directives, when using multiple files.
645 # ld_after_inputfiles: FLAGS
646 # Similar to "ld", but put after all input files.
648 # objcopy_linked_file: FLAGS
649 # Run objcopy on the linked file with the specified flags.
650 # This lets you transform the linked file using objcopy, before the
651 # result is analyzed by an analyzer program specified below (which
652 # may in turn *also* be objcopy).
655 # The name of the program to run to analyze the .o file produced
656 # by the assembler or the linker output. This can be omitted;
657 # run_dump_test will guess which program to run by seeing which of
658 # the flags options below is present.
663 # Use the specified program to analyze the assembler or linker
664 # output file, and pass it FLAGS, in addition to the output name.
665 # Note that they are run with LC_ALL=C in the environment to give
666 # consistent sorting of symbols.
668 # source: SOURCE [FLAGS]
669 # Assemble the file SOURCE.s using the flags in the "as" directive
670 # and the (optional) FLAGS. If omitted, the source defaults to
672 # This is useful if several .d files want to share a .s file.
673 # More than one "source" directive can be given, which is useful
674 # when testing linking.
677 # The test is expected to fail on TARGET. This may occur more than
681 # Only run the test for TARGET. This may occur more than once; the
682 # target being tested must match at least one. You may provide target
683 # name "cfi" for any target supporting the CFI statements.
686 # Do not run the test for TARGET. This may occur more than once;
687 # the target being tested must not match any of them.
690 # An error with message matching REGEX must be emitted for the test
691 # to pass. The PROG, objdump, nm and objcopy options have no
692 # meaning and need not supplied if this is present. Multiple "error"
693 # directives append to the expected linker error message.
696 # Expect a linker warning matching REGEX. It is an error to issue
697 # both "error" and "warning". Multiple "warning" directives
698 # append to the expected linker warning message.
700 # Each option may occur at most once unless otherwise mentioned.
702 # After the option lines come regexp lines. `run_dump_test' calls
703 # `regexp_diff' to compare the output of the dumping tool against the
704 # regexps in FILE.d. `regexp_diff' is defined later in this file; see
705 # further comments there.
707 proc run_dump_test { name } {
709 global OBJDUMP NM AS OBJCOPY READELF LD
710 global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
711 global host_triplet runtests
714 if [string match "*/*" $name] {
716 set name [file tail $name]
718 set file "$srcdir/$subdir/$name"
721 if ![runtest_file_p $runtests $name] then {
725 set opt_array [slurp_options "${file}.d"]
726 if { $opt_array == -1 } {
727 perror "error reading options from $file.d"
728 unresolved $subdir/$name
731 set dumpfile tmpdir/dump.out
736 set opts(ld_after_inputfiles) {}
739 set opts(notarget) {}
749 set opts(objcopy_linked_file) {}
750 set asflags(${file}.s) {}
752 foreach i $opt_array {
753 set opt_name [lindex $i 0]
754 set opt_val [lindex $i 1]
755 if ![info exists opts($opt_name)] {
756 perror "unknown option $opt_name in file $file.d"
757 unresolved $subdir/$name
761 switch -- $opt_name {
768 # Move any source-specific as-flags to a separate array to
769 # simplify processing.
770 if { [llength $opt_val] > 1 } {
771 set asflags([lindex $opt_val 0]) [lrange $opt_val 1 end]
772 set opt_val [lindex $opt_val 0]
774 set asflags($opt_val) {}
778 if [string length $opts($opt_name)] {
779 perror "option $opt_name multiply set in $file.d"
780 unresolved $subdir/$name
784 # A single "# ld:" with no options should do the right thing.
785 if { $opt_name == "ld" } {
788 # Likewise objcopy_linked_file.
789 if { $opt_name == "objcopy_linked_file" } {
794 if { $opt_name == "as" || $opt_name == "ld" } {
795 set opt_val [subst $opt_val]
797 set opts($opt_name) [concat $opts($opt_name) $opt_val]
799 foreach opt { as ld } {
800 regsub {\[big_or_little_endian\]} $opts($opt) \
801 [big_or_little_endian] opts($opt)
804 # Decide early whether we should run the test for this target.
805 if { [llength $opts(target)] > 0 } {
807 foreach targ $opts(target) {
808 if [istarget $targ] {
813 if { $targmatch == 0 } {
817 foreach targ $opts(notarget) {
818 if [istarget $targ] {
824 # It's meaningless to require an output-testing method when we
826 if { $opts(error) == "" } {
827 if {$opts(PROG) != ""} {
828 switch -- $opts(PROG) {
829 objdump { set program objdump }
830 nm { set program nm }
831 objcopy { set program objcopy }
832 readelf { set program readelf }
834 { perror "unrecognized program option $opts(PROG) in $file.d"
835 unresolved $subdir/$name
839 # Guess which program to run, by seeing which option was specified.
840 foreach p {objdump objcopy nm readelf} {
841 if {$opts($p) != ""} {
842 if {$program != ""} {
843 perror "ambiguous dump program in $file.d"
844 unresolved $subdir/$name
852 if { $program == "" && $opts(warning) == "" } {
853 perror "dump program unspecified in $file.d"
854 unresolved $subdir/$name
859 if { $opts(name) == "" } {
860 set testname "$subdir/$name"
862 set testname $opts(name)
865 if { $opts(source) == "" } {
866 set sourcefiles [list ${file}.s]
869 foreach sf $opts(source) {
870 if { [string match "/*" $sf] } {
871 lappend sourcefiles "$sf"
873 lappend sourcefiles "$srcdir/$subdir/$sf"
875 # Must have asflags indexed on source name.
876 set asflags($srcdir/$subdir/$sf) $asflags($sf)
880 # Time to setup xfailures.
881 foreach targ $opts(xfail) {
885 # Assemble each file.
887 for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
888 set sourcefile [lindex $sourcefiles $i]
890 set objfile "tmpdir/dump$i.o"
891 catch "exec rm -f $objfile" exec_output
892 lappend objfiles $objfile
893 set cmd "$AS $ASFLAGS $opts(as) $asflags($sourcefile) -o $objfile $sourcefile"
896 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
897 remote_upload host "ld.tmp"
898 set comp_output [prune_warnings [file_contents "ld.tmp"]]
899 remote_file host delete "ld.tmp"
900 remote_file build delete "ld.tmp"
902 if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
903 send_log "$comp_output\n"
904 verbose "$comp_output" 3
906 set exitstat "succeeded"
907 if { $cmdret != 0 } { set exitstat "failed" }
908 verbose -log "$exitstat with: <$comp_output>"
914 set expmsg $opts(error)
915 if { $opts(warning) != "" } {
916 if { $expmsg != "" } {
917 perror "$testname: mixing error and warning test-directives"
920 set expmsg $opts(warning)
923 # Perhaps link the file(s).
925 set objfile "tmpdir/dump"
926 catch "exec rm -f $objfile" exec_output
928 # Add -L$srcdir/$subdir so that the linker command can use
929 # linker scripts in the source directory.
930 set cmd "$LD $LDFLAGS -L$srcdir/$subdir \
931 $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
934 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
935 remote_upload host "ld.tmp"
936 set comp_output [file_contents "ld.tmp"]
937 remote_file host delete "ld.tmp"
938 remote_file build delete "ld.tmp"
939 set cmdret [lindex $cmdret 0]
941 if { $cmdret == 0 && $run_objcopy } {
943 set objfile "tmpdir/dump1"
944 remote_file host delete $objfile
946 # Note that we don't use OBJCOPYFLAGS here; any flags must be
947 # explicitly specified.
948 set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
951 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
952 remote_upload host "ld.tmp"
953 append comp_output [file_contents "ld.tmp"]
954 remote_file host delete "ld.tmp"
955 remote_file build delete "ld.tmp"
956 set cmdret [lindex $cmdret 0]
959 regsub "\n$" $comp_output "" comp_output
960 if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then {
961 set exitstat "succeeded"
962 if { $cmdret != 0 } { set exitstat "failed" }
963 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
964 send_log "$comp_output\n"
965 verbose "$comp_output" 3
967 if { ($expmsg == "") == ($comp_output == "") \
968 && [regexp $expmsg $comp_output] \
969 && (($cmdret == 0) == ($opts(error) == "")) } {
970 # We have the expected output from ld.
971 if { $opts(error) != "" || $program == "" } {
976 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
982 set objfile "tmpdir/dump0.o"
985 # We must not have expected failure if we get here.
986 if { $opts(error) != "" } {
991 set progopts1 $opts($program)
992 eval set progopts \$[string toupper $program]FLAGS
993 eval set binary \$[string toupper $program]
995 if { ![is_remote host] && [which $binary] == 0 } {
1000 if { $progopts1 == "" } { set $progopts1 "-r" }
1001 verbose "running $binary $progopts $progopts1" 3
1003 # Objcopy, unlike the other two, won't send its output to stdout,
1004 # so we have to run it specially.
1005 set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
1006 if { $program == "objcopy" } {
1007 set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
1010 # Ensure consistent sorting of symbols
1011 if {[info exists env(LC_ALL)]} {
1012 set old_lc_all $env(LC_ALL)
1016 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
1017 set cmdret [lindex $cmdret 0]
1018 remote_upload host "ld.tmp"
1019 set comp_output [prune_warnings [file_contents "ld.tmp"]]
1020 remote_file host delete "ld.tmp"
1021 remote_file build delete "ld.tmp"
1022 if {[info exists old_lc_all]} {
1023 set env(LC_ALL) $old_lc_all
1027 if { $cmdret != 0 || $comp_output != "" } {
1028 send_log "exited abnormally with $cmdret, output:$comp_output\n"
1033 if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
1034 if { [regexp_diff $dumpfile "${file}.d"] } then {
1036 if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
1043 proc slurp_options { file } {
1044 if [catch { set f [open $file r] } x] {
1045 #perror "couldn't open `$file': $x"
1050 # whitespace expression
1053 # whitespace is ignored anywhere except within the options list;
1054 # option names are alphabetic plus underscore only.
1055 set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$"
1056 while { [gets $f line] != -1 } {
1057 set line [string trim $line]
1058 # Whitespace here is space-tab.
1059 if [regexp $pat $line xxx opt_name opt_val] {
1061 lappend opt_array [list $opt_name $opt_val]
1070 # regexp_diff, copied from gas, based on simple_diff above.
1071 # compares two files line-by-line
1072 # file1 contains strings, file2 contains regexps and #-comments
1073 # blank lines are ignored in either file
1074 # returns non-zero if differences exist
1076 proc regexp_diff { file_1 file_2 } {
1085 if [file exists $file_1] then {
1086 set file_a [open $file_1 r]
1088 warning "$file_1 doesn't exist"
1092 if [file exists $file_2] then {
1093 set file_b [open $file_2 r]
1095 fail "$file_2 doesn't exist"
1100 verbose " Regexp-diff'ing: $file_1 $file_2" 2
1105 while { [string length $line_a] == 0 } {
1106 if { [gets $file_a line_a] == $eof } {
1111 while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
1112 if [ string match "#pass" $line_b ] {
1116 } elseif [ string match "#failif" $line_b ] {
1117 send_log "fail if no difference\n"
1118 verbose "fail if no difference" 3
1120 } elseif [ string match "#..." $line_b ] {
1121 if { [gets $file_b line_b] == $eof } {
1126 verbose "looking for \"^$line_b$\"" 3
1127 while { ![regexp "^$line_b$" "$line_a"] } {
1128 verbose "skipping \"$line_a\"" 3
1129 if { [gets $file_a line_a] == $eof } {
1136 if { [gets $file_b line_b] == $eof } {
1144 } elseif { $end_1 && $end_2 } {
1146 } elseif { $end_1 } {
1147 send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
1148 verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
1151 } elseif { $end_2 } {
1152 send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
1153 verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
1157 verbose "regexp \"^$line_b$\"\nline \"$line_a\"" 3
1158 if ![regexp "^$line_b$" "$line_a"] {
1159 verbose "regexp_diff match failure\n" 3
1160 send_log "regexp_diff match failure\n"
1161 send_log "regexp \"^$line_b$\"\nline \"$line_a\"\n"
1167 if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
1168 send_log "$file_1 and $file_2 are different lengths\n"
1169 verbose "$file_1 and $file_2 are different lengths" 3
1173 if { $fail_if_match } {
1174 if { $differences == 0 } {
1187 proc file_contents { filename } {
1188 set file [open $filename r]
1189 set contents [read $file]
1194 proc set_file_contents { filename contents } {
1195 set file [open $filename w]
1196 puts $file "$contents"
1200 # Create an archive using ar
1202 proc ar_simple_create { ar aropts target objects } {
1203 remote_file host delete $target
1205 set exec_output [run_host_cmd "$ar" "$aropts rc $target $objects"]
1206 set exec_output [prune_warnings $exec_output]
1208 if [string match "" $exec_output] then {
1209 send_log "$exec_output\n"
1216 # List contains test-items with 3 items followed by 2 lists, one item and
1217 # one optional item:
1218 # 0:name 1:ld/ar options 2:assembler options
1219 # 3:filenames of assembler files 4: action and options. 5: name of output file
1220 # 6:compiler flags (optional)
1223 # objdump: Apply objdump options on result. Compare with regex (last arg).
1224 # nm: Apply nm options on result. Compare with regex (last arg).
1225 # readelf: Apply readelf options on result. Compare with regex (last arg).
1226 # ld: Don't apply anything on result. Compare output during linking with
1227 # regex (second arg). Note that this *must* be the first action if it
1228 # is to be used at all; in all other cases, any output from the linker
1229 # during linking is treated as a sign of an error and FAILs the test.
1231 proc run_ld_link_tests { ldtests } {
1246 foreach testitem $ldtests {
1247 set testname [lindex $testitem 0]
1249 if ![runtest_file_p $runtests $testname] then {
1253 set ld_options [lindex $testitem 1]
1254 set as_options [lindex $testitem 2]
1255 set src_files [lindex $testitem 3]
1256 set actions [lindex $testitem 4]
1257 set binfile tmpdir/[lindex $testitem 5]
1258 set cflags [lindex $testitem 6]
1265 # verbose -log "Testname is $testname"
1266 # verbose -log "ld_options is $ld_options"
1267 # verbose -log "as_options is $as_options"
1268 # verbose -log "src_files is $src_files"
1269 # verbose -log "actions is $actions"
1270 # verbose -log "binfile is $binfile"
1272 # Assemble each file in the test.
1273 foreach src_file $src_files {
1274 set objfile "tmpdir/[file rootname $src_file].o"
1275 lappend objfiles $objfile
1277 if { [file extension $src_file] == ".c" } {
1278 set as_file "tmpdir/[file rootname $src_file].s"
1279 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
1284 set as_file "$srcdir/$subdir/$src_file"
1286 if ![ld_assemble $as "$as_options $as_file" $objfile] {
1292 # Catch assembler errors.
1293 if { $is_unresolved != 0 } {
1294 unresolved $testname
1298 if { [regexp ".*\\.a$" $binfile] } {
1299 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles"] } {
1305 } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles"] } {
1307 set ld_output "$exec_output"
1312 if { $failed == 0 } {
1313 foreach actionlist $actions {
1314 set action [lindex $actionlist 0]
1315 set progopts [lindex $actionlist 1]
1317 # There are actions where we run regexp_diff on the
1318 # output, and there are other actions (presumably).
1319 # Handling of the former look the same.
1323 { set dump_prog $objdump }
1325 { set dump_prog $nm }
1327 { set dump_prog $READELF }
1329 { set dump_prog "ld" }
1332 perror "Unrecognized action $action"
1338 if { $action == "ld" } {
1339 set dumpfile [lindex $actionlist 1]
1340 verbose "dumpfile is $dumpfile"
1341 set_file_contents "tmpdir/ld.messages" "$ld_output"
1342 verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
1343 if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$dumpfile"] } then {
1344 verbose "output is $ld_output" 2
1349 } elseif { $maybe_failed != 0 } {
1352 } elseif { $dump_prog != "" } {
1353 set dumpfile [lindex $actionlist 2]
1354 set binary $dump_prog
1356 # Ensure consistent sorting of symbols
1357 if {[info exists env(LC_ALL)]} {
1358 set old_lc_all $env(LC_ALL)
1361 set cmd "$binary $progopts $binfile"
1362 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
1364 remote_upload host "ld.stderr"
1365 set comp_output [prune_warnings [file_contents "ld.stderr"]]
1366 remote_file host delete "ld.stderr"
1367 remote_file build delete "ld.stderr"
1369 if {[info exists old_lc_all]} {
1370 set env(LC_ALL) $old_lc_all
1375 if ![string match "" $comp_output] then {
1376 send_log "$comp_output\n"
1381 remote_upload host "dump.out"
1383 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1384 verbose "output is [file_contents "dump.out"]" 2
1386 remote_file build delete "dump.out"
1387 remote_file host delete "dump.out"
1390 remote_file build delete "dump.out"
1391 remote_file host delete "dump.out"
1395 if { $failed != 0 } {
1397 } else { if { $is_unresolved == 0 } {
1402 # Catch action errors.
1403 if { $is_unresolved != 0 } {
1404 unresolved $testname
1410 # This definition is taken from an unreleased version of DejaGnu. Once
1411 # that version gets released, and has been out in the world for a few
1412 # months at least, it may be safe to delete this copy.
1413 if ![string length [info proc prune_warnings]] {
1415 # prune_warnings -- delete various system verbosities from TEXT
1418 # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
1420 # Sites with particular verbose os's may wish to override this in site.exp.
1422 proc prune_warnings { text } {
1423 # This is from sun4's. Do it for all machines for now.
1424 # The "\\1" is to try to preserve a "\n" but only if necessary.
1425 regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
1427 # It might be tempting to get carried away and delete blank lines, etc.
1428 # Just delete *exactly* what we're ask to, and that's it.
1433 # targets_to_xfail is a list of target triplets to be xfailed.
1434 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
1435 # and 3 optional items:
1438 # 2:assembler options
1439 # 3:filenames of source files
1440 # 4:name of output file
1442 # 6:compiler flags (optional)
1443 # 7:language (optional)
1444 # 8:linker warning (optional)
1446 proc run_ld_link_exec_tests { targets_to_xfail ldtests } {
1459 foreach testitem $ldtests {
1460 foreach target $targets_to_xfail {
1463 set testname [lindex $testitem 0]
1464 set ld_options [lindex $testitem 1]
1465 set as_options [lindex $testitem 2]
1466 set src_files [lindex $testitem 3]
1467 set binfile tmpdir/[lindex $testitem 4]
1468 set expfile [lindex $testitem 5]
1469 set cflags [lindex $testitem 6]
1470 set lang [lindex $testitem 7]
1471 set warning [lindex $testitem 8]
1475 # verbose -log "Testname is $testname"
1476 # verbose -log "ld_options is $ld_options"
1477 # verbose -log "as_options is $as_options"
1478 # verbose -log "src_files is $src_files"
1479 # verbose -log "actions is $actions"
1480 # verbose -log "binfile is $binfile"
1482 # Assemble each file in the test.
1483 foreach src_file $src_files {
1484 set objfile "tmpdir/[file rootname $src_file].o"
1485 lappend objfiles $objfile
1487 # We ignore warnings since some compilers may generate
1488 # incorrect section attributes and the assembler will warn
1490 if { [ string match "c++" $lang ] } {
1491 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1493 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1496 # We have to use $CC to build PIE and shared library.
1497 if { [ string match "c" $lang ] } {
1498 set link_proc ld_simple_link
1500 } elseif { [ string match "c++" $lang ] } {
1501 set link_proc ld_simple_link
1503 } elseif { [ string match "-shared" $ld_options ] \
1504 || [ string match "-pie" $ld_options ] } {
1505 set link_proc ld_simple_link
1508 set link_proc ld_link
1512 if ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
1518 # Check if exec_output is expected.
1519 if { $warning != "" } then {
1520 verbose -log "returned with: <$exec_output>, expected: <$warning>"
1521 if { [regexp $warning $exec_output] } then {
1528 if { $failed == 0 } {
1529 send_log "Running: $binfile > $binfile.out\n"
1530 verbose "Running: $binfile > $binfile.out"
1531 catch "exec $binfile > $binfile.out" exec_output
1533 if ![string match "" $exec_output] then {
1534 send_log "$exec_output\n"
1535 verbose "$exec_output" 1
1538 send_log "diff $binfile.out $srcdir/$subdir/$expfile\n"
1539 verbose "diff $binfile.out $srcdir/$subdir/$expfile"
1540 catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output
1541 set exec_output [prune_warnings $exec_output]
1543 if ![string match "" $exec_output] then {
1544 send_log "$exec_output\n"
1545 verbose "$exec_output" 1
1551 if { $failed != 0 } {
1561 # List contains test-items with 3 items followed by 2 lists, one item and
1562 # one optional item:
1564 # 1:ld or ar options
1566 # 3:filenames of source files
1567 # 4:action and options.
1568 # 5:name of output file
1569 # 6:language (optional)
1572 # objdump: Apply objdump options on result. Compare with regex (last arg).
1573 # nm: Apply nm options on result. Compare with regex (last arg).
1574 # readelf: Apply readelf options on result. Compare with regex (last arg).
1576 proc run_cc_link_tests { ldtests } {
1589 foreach testitem $ldtests {
1590 set testname [lindex $testitem 0]
1591 set ldflags [lindex $testitem 1]
1592 set cflags [lindex $testitem 2]
1593 set src_files [lindex $testitem 3]
1594 set actions [lindex $testitem 4]
1595 set binfile tmpdir/[lindex $testitem 5]
1596 set lang [lindex $testitem 6]
1601 # Compile each file in the test.
1602 foreach src_file $src_files {
1603 set objfile "tmpdir/[file rootname $src_file].o"
1604 lappend objfiles $objfile
1606 # We ignore warnings since some compilers may generate
1607 # incorrect section attributes and the assembler will warn
1609 if { [ string match "c++" $lang ] } {
1610 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1612 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1616 # Clear error and warning counts.
1619 if { [ string match "c++" $lang ] } {
1625 if { [regexp ".*\\.a$" $binfile] } {
1626 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
1632 } elseif { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
1639 if { $failed == 0 } {
1640 foreach actionlist $actions {
1641 set action [lindex $actionlist 0]
1642 set progopts [lindex $actionlist 1]
1644 # There are actions where we run regexp_diff on the
1645 # output, and there are other actions (presumably).
1646 # Handling of the former look the same.
1650 { set dump_prog $objdump }
1652 { set dump_prog $nm }
1654 { set dump_prog $READELF }
1657 perror "Unrecognized action $action"
1663 if { $dump_prog != "" } {
1664 set dumpfile [lindex $actionlist 2]
1665 set binary $dump_prog
1667 # Ensure consistent sorting of symbols
1668 if {[info exists env(LC_ALL)]} {
1669 set old_lc_all $env(LC_ALL)
1672 set cmd "$binary $progopts $binfile > dump.out"
1674 catch "exec $cmd" comp_output
1675 if {[info exists old_lc_all]} {
1676 set env(LC_ALL) $old_lc_all
1680 set comp_output [prune_warnings $comp_output]
1682 if ![string match "" $comp_output] then {
1683 send_log "$comp_output\n"
1688 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1689 verbose "output is [file_contents "dump.out"]" 2
1696 if { $failed != 0 } {
1698 } else { if { $is_unresolved == 0 } {
1703 # Catch action errors.
1704 if { $is_unresolved != 0 } {
1705 unresolved $testname
1711 # Returns true if --gc-sections is supported on the target.
1713 proc check_gc_sections_available { } {
1714 global gc_sections_available_saved
1717 if {![info exists gc_sections_available_saved]} {
1718 # Some targets don't support gc-sections despite whatever's
1719 # advertised by ld's options.
1720 if {[istarget arc-*-*]
1721 || [istarget d30v-*-*]
1722 || [istarget dlx-*-*]
1723 || [istarget i960-*-*]
1724 || [istarget or32-*-*]
1725 || [istarget pj*-*-*]
1726 || [istarget alpha-*-*]
1727 || [istarget hppa64-*-*]
1728 || [istarget i370-*-*]
1729 || [istarget i860-*-*]
1730 || [istarget ia64-*-*]
1731 || [istarget mep-*-*]
1732 || [istarget mn10200-*-*]
1733 || [istarget *-*-cygwin]
1734 || [istarget *-*-mingw*] } {
1735 set gc_sections_available_saved 0
1739 # elf2flt uses -q (--emit-relocs), which is incompatible with
1741 if { [board_info target exists ldflags]
1742 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1743 set gc_sections_available_saved 0
1747 # Check if the ld used by gcc supports --gc-sections.
1748 set ld_output [remote_exec host $ld "--help"]
1749 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1750 set gc_sections_available_saved 1
1752 set gc_sections_available_saved 0
1755 return $gc_sections_available_saved
1758 # Returns true if the target ld supports the plugin API.
1759 proc check_plugin_api_available { } {
1760 global plugin_api_available_saved
1762 if {![info exists plugin_api_available_saved]} {
1763 # Check if the ld used by gcc supports --plugin.
1764 set ld_output [remote_exec host $ld "--help"]
1765 if { [ string first "-plugin" $ld_output ] >= 0 } {
1766 set plugin_api_available_saved 1
1768 set plugin_api_available_saved 0
1771 return $plugin_api_available_saved
1774 # Check if the assembler supports CFI statements.
1776 proc check_as_cfi { } {
1777 global check_as_cfi_result
1779 if [info exists check_as_cfi_result] {
1780 return $check_as_cfi_result
1782 set as_file "tmpdir/check_as_cfi.s"
1783 set as_fh [open $as_file w 0666]
1784 puts $as_fh "# Generated file. DO NOT EDIT"
1785 puts $as_fh "\t.cfi_startproc"
1786 puts $as_fh "\t.cfi_endproc"
1788 remote_download host $as_file
1789 verbose -log "Checking CFI support:"
1790 rename "perror" "check_as_cfi_perror"
1791 proc perror { args } { }
1792 set success [ld_assemble $as $as_file "/dev/null"]
1794 rename "check_as_cfi_perror" "perror"
1795 #remote_file host delete $as_file
1796 set check_as_cfi_result $success
1800 # Provide virtual target "cfi" for targets supporting CFI.
1802 rename "istarget" "istarget_ld"
1803 proc istarget { target } {
1804 if {$target == "cfi"} {
1805 return [check_as_cfi]
1807 return [istarget_ld $target]