1 # libstdc++ "tool init file" for DejaGNU
3 # Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
4 # Free Software Foundation, Inc.
6 # This program 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 2 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, MA
22 # Define callbacks and load other libraries. This file is loaded relatively
23 # early, and before any other file we write ourselves. "load_lib" will
24 # find anything in the DejaGNU installation tree, or in our lib directory.
25 # "load_gcc_lib" will search the core compiler's .exp collection instead.
27 # The naming rule is that dg.exp looks for "tool-" and runtest.exp looks
28 # for "tool_" when finding callbacks. Utility routines we define for
29 # our callbacks begin with "v3-".
31 # libstdc++_* callbacks we don't define, but could:
32 # ..._option_help prints additional --help output
33 # ..._option_proc (--foo) process our own options
34 # ..._init (normal.exp) called once per test file
35 # ..._finish bracketing function for libstdc++_init
36 # ...-dg-prune removing output text, see top of system dg.exp
38 # Useful hook: if ${hostname}_init exists, it will be called, almost
39 # the last thing before testing begins. This can be defined in, e.g.,
40 # ~/.dejagnurc or $DEJAGNU.
42 proc load_gcc_lib { filename } {
44 load_file $srcdir/../../gcc/testsuite/lib/$filename
50 # compiler routines, then ours
51 load_gcc_lib target-supports.exp
52 load_gcc_lib target-supports-dg.exp
54 load_lib dg-options.exp
55 load_gcc_lib target-libpath.exp
56 load_gcc_lib wrapper.exp
58 # Useful for debugging. Pass the name of a variable and the verbosity
59 # threshold (number of -v's on the command line).
60 proc v3track { var n } {
62 verbose "++ $var is $val" $n
65 # Called by v3-init below. "Static" to this file.
66 proc v3-copy-files {srcfiles} {
68 if { [catch { set symlink [file readlink $f] } x] } then {
69 remote_download target $f
71 if { [regexp "^/" "$symlink"] } then {
72 remote_download target $symlink
74 set dirname [file dirname $f]
75 remote_download target $dirname/$symlink
81 # Called once, during runtest.exp setup.
82 proc libstdc++_init { testfile } {
85 global srcdir blddir objdir tool_root_dir
86 global cxx cxxflags cxxldflags
88 global gluefile wrap_flags
89 global ld_library_path
93 # We set LC_ALL and LANG to C so that we get the same error
94 # messages as expected.
98 set blddir [lookfor_file [get_multilibs] libstdc++-v3]
99 set flags_file "${blddir}/scripts/testsuite_flags"
102 # If a test doesn't have special options, use DEFAULT_CXXFLAGS.
103 # Use this variable if the behavior
104 # 1) only applies to libstdc++ testing
105 # 2) might need to be negated
106 # In particular, some tests have to be run without precompiled
107 # headers, or without assertions.
108 global DEFAULT_CXXFLAGS
109 if ![info exists DEFAULT_CXXFLAGS] then {
110 set DEFAULT_CXXFLAGS ""
111 # Host specific goo here.
112 if { [string match "powerpc-*-darwin*" $target_triplet] } {
113 append DEFAULT_CXXFLAGS " -multiply_defined suppress"
116 v3track DEFAULT_CXXFLAGS 2
118 # By default, we assume we want to run program images.
119 global dg-do-what-default
120 set dg-do-what-default run
122 # Copy any required data files.
123 v3-copy-files [glob -nocomplain "$srcdir/data/*.tst"]
124 v3-copy-files [glob -nocomplain "$srcdir/data/*.txt"]
126 # Locate libgcc.a so we don't need to account for different values of
127 # SHLIB_EXT on different platforms
128 set gccdir [lookfor_file $tool_root_dir gcc/libgcc.a]
130 set gccdir [file dirname $gccdir]
134 # Look for shared library. (ie libstdc++.so.)
136 set sharedlibdir [lookfor_file $blddir src/.libs/libstdc++.so]
137 if {$sharedlibdir != ""} {
138 if { [string match "*-*-linux*" $target_triplet] && [isnative] } {
140 verbose -log "shared library support detected"
143 v3track v3-sharedlib 3
145 # Compute what needs to be added to the existing LD_LIBRARY_PATH.
147 set ld_library_path ""
148 append ld_library_path ":${gccdir}"
149 set compiler ${gccdir}/g++
150 append ld_library_path ":${blddir}/src/.libs"
152 if { [is_remote host] == 0 && [which $compiler] != 0 } {
153 foreach i "[exec $compiler --print-multi-lib]" {
155 regexp -- "\[a-z0-9=_/\.-\]*;" $i mldir
156 set mldir [string trimright $mldir "\;@"]
157 if { "$mldir" == "." } {
160 if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s*.so.*]] >= 1 } {
161 append ld_library_path ":${gccdir}/${mldir}"
166 set_ld_library_path_env_vars
167 if [info exists env(LD_LIBRARY_PATH)] {
168 verbose -log "LD_LIBRARY_PATH = $env(LD_LIBRARY_PATH)"
171 set compiler [transform "g++"]
175 set cxx [transform "g++"]
176 set cxxflags "-g -O2 -D_GLIBCXX_ASSERT -fmessage-length=0"
178 # Locate testsuite_hooks.h and other testsuite headers.
179 set includes "-I${srcdir}/util"
180 # Adapt the defaults for special circumstances.
181 if [is_remote host] {
182 # A remote host does not, in general, have access to the
183 # $srcdir so we copy the testsuite headers into the current
184 # directory, and then add that to the search path.
185 foreach src [glob "${srcdir}/util/*.h" \
186 "${srcdir}/util/*.cc" \
187 "${srcdir}/util/*/*.hpp" \
188 "${srcdir}/util/*/*.cc" \
189 "${srcdir}/util/*/*.hpp" \
190 "${srcdir}/util/*/*/*.cc" \
191 "${srcdir}/util/*/*/*.hpp" \
192 "${srcdir}/util/*/*/*/*.cc" \
193 "${srcdir}/util/*/*/*/*.hpp" \
194 "${srcdir}/util/*/*/*/*/*.cc" \
195 "${srcdir}/util/*/*/*/*/*.hpp" ] {
196 # Remove everything up to "util/..."
197 set dst [string range $src [string length "${srcdir}/"] end]
198 # Create the directory containing the file.
199 set dir [file dirname $dst]
200 remote_exec host "mkdir" [list "-p" "$dir"]
202 set result [remote_download host $src $dst]
203 if { $result == "" } {
204 verbose -log "Unable to download ${srcdir}/${f} to host."
208 set includes "-Iutil"
209 } elseif { [file exists $flags_file] } {
210 # If we find a testsuite_flags file, we're testing in the build dir.
211 set cxx [exec sh $flags_file --build-cxx]
212 set cxxflags [exec sh $flags_file --cxxflags]
213 set cxxldflags [exec sh $flags_file --cxxldflags]
214 set includes [exec sh $flags_file --build-includes]
217 # Always use MO files built by this test harness.
218 set cxxflags "$cxxflags -DLOCALEDIR=\".\""
220 # If a PCH file is available, use it. We must delay performing
221 # this check until $cxx and such have been initialized because we
222 # perform a test compilation. (Ideally, gcc --print-file-name would
223 # list PCH files, but it does not.)
225 if ![info exists PCH_CXXFLAGS] then {
226 set src "config[pid].cc"
227 set f [open $src "w"]
228 puts $f "int main () {}"
231 set lines [v3_target_compile $src "config[pid].o" object \
232 "additional_flags=-include additional_flags=bits/stdtr1c++.h"]
234 # set PCH_CXXFLAGS "-include bits/extc++.h"
235 # set PCH_CXXFLAGS "-include bits/stdtr1c++.h"
236 set PCH_CXXFLAGS "-include bits/stdc++.h"
241 v3track PCH_CXXFLAGS 2
244 libstdc++_maybe_build_wrapper "${objdir}/testglue.o" "-fexceptions"
247 # Callback for cleanup routines.
248 proc libstdc++_exit { } {
251 if [info exists gluefile] {
252 file_on_build delete $gluefile;
257 # Callback from system dg-test.
258 proc libstdc++-dg-test { prog do_what extra_tool_flags } {
259 # Set up the compiler flags, based on what we're going to do.
262 set compile_type "preprocess"
263 set output_file "[file rootname [file tail $prog]].i"
266 set compile_type "assembly"
267 set output_file "[file rootname [file tail $prog]].s"
270 set compile_type "object"
271 set output_file "[file rootname [file tail $prog]].o"
274 set compile_type "executable"
275 set output_file "./[file rootname [file tail $prog]].exe"
278 set compile_type "executable"
279 # FIXME: "./" is to cope with "." not being in $PATH.
280 # Should this be handled elsewhere?
282 set output_file "./[file rootname [file tail $prog]].exe"
283 # This is the only place where we care if an executable was
284 # created or not. If it was, dg.exp will try to run it.
285 catch { remote_file build delete $output_file }
288 perror "$do_what: not a valid dg-do keyword"
293 # Short-circut a bunch of complicated goo here for the special
294 # case of compiling a test file as a "C" file, not as C++. Why? So
295 # -nostdc++ doesn't trip us up. So all the extra object files
296 # don't trip us up. So automatically linking in libstdc++ doesn't
297 # happen. So CXXFLAGS don't error.
298 set select_compile "v3_target_compile"
300 if { $extra_tool_flags != "" } {
301 verbose -log "extra_tool_flags are:"
302 verbose -log $extra_tool_flags
303 if { [string first "-x c" $extra_tool_flags ] != -1 } {
304 verbose -log "compiling and executing as C, not C++"
305 set edit_tool_flags $extra_tool_flags
306 regsub -all ".x c" $edit_tool_flags "" edit_tool_flags
307 lappend options "additional_flags=$edit_tool_flags"
308 set select_compile "v3_target_compile_as_c"
310 lappend options "additional_flags=$extra_tool_flags"
314 # There is a libstdc++_compile made for us by default (via the tool-
315 # and-target file), but the defaults are lacking in goodness.
316 set comp_output [$select_compile "$prog" "$output_file" "$compile_type" $options];
317 set comp_output [ prune_g++_output $comp_output ];
319 return [list $comp_output $output_file]
322 # True if the library supports wchar_t.
325 # True if the library supports threads.
328 # True if the library supports symbol versioning.
331 # Called from libstdc++-dg-test above. Calls back into system's
332 # target_compile to actually do the work.
333 proc v3_target_compile { source dest type options } {
341 if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {
342 lappend options "libs=${gluefile}"
343 lappend options "ldflags=${wrap_flags}"
347 set cxxlibglossflags [libgloss_link_flags]
348 set cxx_final [concat $cxx_final $cxxlibglossflags]
349 set cxx_final [concat $cxx_final $cxxflags]
350 set cxx_final [concat $cxx_final $includes]
352 # Flag setting based on type argument.
353 if { $type == "executable" } {
354 # Link the support objects into executables.
355 set cxx_final [concat $cxx_final $cxxldflags]
356 lappend options "additional_flags=./libtestc++.a"
358 if { $type == "sharedlib" } {
359 # Don't link in anything.
360 set type "executable"
364 lappend options "compiler=$cxx_final"
365 lappend options "timeout=600"
367 return [target_compile $source $dest $type $options]
371 # Called from libstdc++-dg-test above, but only for "C" compilation.
372 # Calls back into system's target_compile to actually do the work.
373 proc v3_target_compile_as_c { source dest type options } {
380 if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {
381 lappend options "libs=${gluefile}"
382 lappend options "ldflags=${wrap_flags}"
385 set tname [target_info name]
386 set cc [board_info $tname compiler]
388 set cxxlibglossflags [libgloss_link_flags]
389 set cc_final [concat $cc_final $cxxlibglossflags]
390 set cc_final [concat $cc_final $includes]
391 regsub -all ".nostdinc.." $cc_final "" cc_final
393 # This is needed for "C" tests, as this type of test may need the
394 # C++ includes. And if we're not testing in the build directory,
395 # the includes variable is not likely to include the necessary
397 if { ![file exists $flags_file] } {
398 set version [remote_exec host ${cc} -dumpversion]
399 set version [lindex $version 1]
400 set machine [remote_exec exec ${cc} -dumpmachine]
401 set machine [lindex $machine 1]
402 set comp_base_dir [remote_exec host ${cc} --print-prog-name=cc1]
403 set comp_base_dir [lindex $comp_base_dir 1]
404 set comp_base_dir [file dirname [file dirname [file dirname [file dirname [file dirname $comp_base_dir]]]]]
405 set includesbase "${comp_base_dir}/include/c++/${version}"
406 set includestarget "${includesbase}/${machine}"
407 set cc_final [concat $cc_final "-I$includesbase -I$includestarget"]
409 set libsup "${comp_base_dir}/lib"
411 set libsup "${blddir}/libsupc++/.libs"
414 set cc_final [concat $cc_final "-L$libsup"]
416 lappend options "compiler=$cc_final"
417 lappend options "timeout=600"
419 return [target_compile $source $dest $type $options]
422 # Build the support objects linked in with the libstdc++ tests. In
423 # addition, set v3-wchar_t, v3-threads, and v3-symver appropriately.
424 proc v3-build_support { } {
432 # Figure out whether or not the library supports certain features.
438 set config_src "config.cc"
439 set f [open $config_src "w"]
440 puts $f "#include <bits/c++config.h>"
441 puts $f "#include <bits/gthr.h>"
443 set preprocessed [v3_target_compile $config_src "" \
444 preprocess "additional_flags=-dN"]
445 if { [string first "_GLIBCXX_USE_WCHAR_T" $preprocessed] != -1 } {
446 verbose -log "wchar_t support detected"
449 if { [string first "_GLIBCXX_SYMVER" $preprocessed] != -1 } {
450 verbose -log "symbol versioning support detected"
453 if { [string first "__GTHREADS" $preprocessed] != -1 } {
454 verbose -log "thread support detected"
458 # Try to build the MO files that are used by some of the locale
459 # tests. If we can't build them, that's OK; it just means that
460 # those tests will fail.
461 foreach lang [list "fr" "de"] {
463 file mkdir "$lang/LC_MESSAGES"
464 remote_exec "build" "msgfmt" "-o $lang/LC_MESSAGES/libstdc++.mo $srcdir/../po/$lang.po"
465 if [is_remote host] {
466 remote_exec "host" "mkdir" "-p $lang/LC_MESSAGES"
467 remote_download "host" "$lang/LC_MESSAGES/libstdc++.mo" "$lang/LC_MESSAGES/libstdc++.mo"
472 # Build the support objects.
473 set source_files [list testsuite_abi.cc testsuite_allocator.cc \
474 testsuite_character.cc testsuite_hooks.cc \
475 rng/twister_rand_gen.cc io/verified_cmd_line_input.cc \
476 io/prog_bar.cc performance/time/elapsed_timer.cc ]
477 foreach f $source_files {
478 set obj [file rootname $f].o
479 set object_file [file tail $obj]
480 # Compile with "-w" so that warnings issued by the compiler
481 # do not prevent compilation.
482 if { [v3_target_compile $srcdir/util/$f $object_file "object" \
483 [list "incdir=$srcdir" "additional_flags=-w"]]
485 error "could not compile $f"
487 append libtest_objs "$object_file "
490 # Collect into libtestc++.a
491 if [info exists env(AR_FOR_TARGET)] {
492 set ar $env(AR_FOR_TARGET)
494 set ar [transform "ar"]
496 set arcommand "$ar -rc ./libtestc++.a ${libtest_objs}"
497 verbose -log "$arcommand"
498 set result [lindex [local_exec "$arcommand" "" "" 300] 0]
499 verbose "link result is $result"
500 if { $result == 0 } {
501 if [info exists env(RANLIB_FOR_TARGET)] {
502 set ranlib $env(RANLIB_FOR_TARGET)
504 set ranlib [transform "ranlib"]
506 set ranlibcommand "$ranlib ./libtestc++.a"
507 verbose -log "$ranlibcommand"
508 set result [lindex [local_exec "$ranlibcommand" "" "" 300] 0]
509 if { $result != 0 } {
510 error "could not link libtestc++.a"
514 # Build any shared objects needed for regression testing.
515 if { ${v3-sharedlib} == 1 } {
516 set source_files [list testsuite_shared.cc]
517 foreach f $source_files {
518 set object_file [file rootname $f].so
519 # Compile with "-w" so that warnings issued by the compiler
520 # do not prevent compilation.
521 if { [v3_target_compile $srcdir/util/$f $object_file "sharedlib" \
522 [list "incdir=$srcdir" "additional_flags=-w -shared -fPIC -DPIC"]]
524 error "could not compile $f"
530 proc check_v3_target_fileio { } {
531 global et_fileio_saved
532 global et_fileio_target_name
535 if { ![info exists et_fileio_target_name] } {
536 set et_fileio_target_name ""
539 # If the target has changed since we set the cached value, clear it.
540 set current_target [current_target_name]
541 if { $current_target != $et_fileio_target_name } {
542 verbose "check_v3_target_fileio: `$et_fileio_target_name'" 2
543 set et_fileio_target_name $current_target
544 if [info exists et_fileio_saved] {
545 verbose "check_v3_target_fileio: removing cached result" 2
546 unset et_fileio_saved
550 if [info exists et_fileio_saved] {
551 verbose "check_v3_target_fileio: using cached result" 2
553 set et_fileio_saved 0
555 # Set up, compile, and execute a C++ test program that tries to use
557 set src fileio[pid].cc
558 set exe fileio[pid].x
560 set f [open $src "w"]
561 puts $f "#include <sys/types.h>"
562 puts $f "#include <sys/stat.h>"
563 puts $f "#include <fcntl.h>"
564 puts $f "#include <unistd.h>"
565 puts $f "#include <errno.h>"
566 puts $f "using namespace std;"
567 puts $f "int main ()"
569 puts $f " int fd = open (\".\", O_RDONLY);"
570 puts $f " if (fd == -1)"
572 puts $f " int err = errno;"
573 puts $f " if (err == EIO || err == ENOSYS)"
577 puts $f " close (fd);"
582 set lines [v3_target_compile $src $exe executable ""]
585 if [string match "" $lines] {
586 # No error message, compilation succeeded.
587 set result [${tool}_load "./$exe" "" ""]
588 set status [lindex $result 0]
589 remote_file build delete $exe
591 verbose "check_v3_target_fileio: status is <$status>" 2
593 if { $status == "pass" } {
594 set et_fileio_saved 1
597 verbose "check_v3_target_fileio: compilation failed" 2
600 return $et_fileio_saved
603 # Eventually we want C90/C99 determining and switching from this.
604 proc check_v3_target_c_std { } {
605 global et_c_std_saved
606 global et_c_std_target_name
609 if { ![info exists et_c_std_target_name] } {
610 set et_c_std_target_name ""
613 # If the target has changed since we set the cached value, clear it.
614 set current_target [current_target_name]
615 if { $current_target != $et_c_std_target_name } {
616 verbose "check_v3_target_c_std: `$et_c_std_target_name'" 2
617 set et_c_std_target_name $current_target
618 if [info exists et_c_std_saved] {
619 verbose "check_v3_target_c_std: removing cached result" 2
624 if [info exists et_c_std_saved] {
625 verbose "check_v3_target_c_std: using cached result" 2
629 # Set up, compile, and execute a C++ test program that tries to use
631 # For math bits, could use check_effective_target_c99_math.
632 set src fileio[pid].cc
633 set exe fileio[pid].x
635 set f [open $src "w"]
636 puts $f "#include <tr1/cmath>"
637 puts $f "#include <cstdlib>"
638 puts $f "int main ()"
640 puts $f " float f = 45.55;"
641 puts $f " int i = std::tr1::isnan(f);"
643 puts $f " using std::wctomb;"
648 set lines [v3_target_compile $src $exe executable ""]
651 if [string match "" $lines] {
652 # No error message, compilation succeeded.
653 set result [${tool}_load "./$exe" "" ""]
654 set status [lindex $result 0]
655 remote_file build delete $exe
657 verbose "check_v3_target_c_std: status is <$status>" 2
659 if { $status == "pass" } {
663 verbose "check_v3_target_c_std: compilation failed" 2
666 return $et_c_std_saved
669 proc check_v3_target_sharedlib { } {
671 return ${v3-sharedlib}
674 proc check_v3_target_time { } {
676 global et_time_target_name
679 if { ![info exists et_time_target_name] } {
680 set et_time_target_name ""
683 # If the target has changed since we set the cached value, clear it.
684 set current_target [current_target_name]
685 if { $current_target != $et_time_target_name } {
686 verbose "check_v3_target_time: `$et_time_target_name'" 2
687 set et_time_target_name $current_target
688 if [info exists et_time_saved] {
689 verbose "check_v3_target_time: removing cached result" 2
694 if [info exists et_time_saved] {
695 verbose "check_v3_target_time: using cached result" 2
699 # Set up and compile a C++ test program that tries to use
704 set f [open $src "w"]
705 puts $f "#include <time.h>"
706 puts $f "using namespace std;"
707 puts $f "int main ()"
713 set lines [v3_target_compile $src $exe executable ""]
716 if [string match "" $lines] {
717 # No error message, compilation succeeded.
718 verbose "check_v3_target_time: compilation succeeded" 2
719 remote_file build delete $exe
722 verbose "check_v3_target_time: compilation failed" 2
725 return $et_time_saved
728 proc check_v3_target_namedlocale { } {
729 global et_namedlocale_saved
730 global et_namedlocale_target_name
733 if { ![info exists et_namedlocale_target_name] } {
734 set et_namedlocale_target_name ""
737 # If the target has changed since we set the cached value, clear it.
738 set current_target [current_target_name]
739 if { $current_target != $et_namedlocale_target_name } {
740 verbose "check_v3_target_namedlocale: `$et_namedlocale_target_name'" 2
741 set et_namedlocale_target_name $current_target
742 if [info exists et_namedlocale_saved] {
743 verbose "check_v3_target_namedlocale: removing cached result" 2
744 unset et_namedlocale_saved
748 if [info exists et_namedlocale_saved] {
749 verbose "check_v3_target_namedlocale: using cached result" 2
751 set et_namedlocale_saved 0
753 # Set up, compile, and execute a C++ test program that tries to use
754 # all the required named locales.
755 set src nlocale[pid].cc
756 set exe nlocale[pid].x
758 set f [open $src "w"]
759 puts $f "#include <locale>"
760 puts $f "using namespace std;"
761 puts $f "int main ()"
765 puts $f " locale(\"\");"
766 puts $f " locale(\"de_DE\");"
767 puts $f " locale(\"de_DE.ISO-8859-15@euro\");"
768 puts $f " locale(\"de_DE@euro\");"
769 puts $f " locale(\"en_HK\");"
770 puts $f " locale(\"en_PH\");"
771 puts $f " locale(\"en_US\");"
772 puts $f " locale(\"en_US.ISO-8859-1\");"
773 puts $f " locale(\"en_US.ISO-8859-15\");"
774 puts $f " locale(\"en_US.UTF-8\");"
775 puts $f " locale(\"es_ES\");"
776 puts $f " locale(\"es_MX\");"
777 puts $f " locale(\"fr_FR\");"
778 puts $f " locale(\"fr_FR@euro\");"
779 puts $f " locale(\"is_IS\");"
780 puts $f " locale(\"is_IS.UTF-8\");"
781 puts $f " locale(\"it_IT\");"
782 puts $f " locale(\"ja_JP.eucjp\");"
783 puts $f " locale(\"se_NO.UTF-8\");"
784 puts $f " locale(\"ta_IN\");"
785 puts $f " locale(\"zh_TW\");"
788 puts $f " catch(...)"
795 set lines [v3_target_compile $src $exe executable ""]
798 if [string match "" $lines] {
799 # No error message, compilation succeeded.
800 set result [${tool}_load "./$exe" "" ""]
801 set status [lindex $result 0]
802 remote_file build delete $exe
804 verbose "check_v3_target_namedlocale: status is <$status>" 2
806 if { $status == "pass" } {
807 set et_namedlocale_saved 1
810 verbose "check_v3_target_namedlocale: compilation failed" 2
813 return $et_namedlocale_saved
816 proc check_v3_target_debug_mode { } {
822 if { ![info exists et_debug_mode_target_name] } {
823 set et_debug_mode_target_name ""
826 # If the target has changed since we set the cached value, clear it.
827 set current_target [current_target_name]
828 if { $current_target != $et_debug_mode_target_name } {
829 verbose "check_v3_target_debug_mode: `$et_debug_mode_target_name'" 2
830 set et_debug_mode_target_name $current_target
831 if [info exists et_debug_mode] {
832 verbose "check_v3_target_debug_mode: removing cached result" 2
837 if [info exists et_debug_mode] {
838 verbose "check_v3_target_debug_mode: using cached result" 2
842 # Set up, compile, and execute a C++ test program that depends
843 # on debug mode working.
844 set src debug_mode[pid].cc
845 set exe debug_mode[pid].exe
847 set f [open $src "w"]
848 puts $f "#include <string>"
849 puts $f "using namespace std;"
851 puts $f "{ return 0; }"
854 set cxxflags_saved $cxxflags
855 set cxxflags "$cxxflags -Werror -O0 -D_GLIBCXX_DEBUG"
856 set lines [v3_target_compile $src $exe executable ""]
857 set cxxflags $cxxflags_saved
860 if [string match "" $lines] {
861 # No error message, compilation succeeded.
865 verbose "check_v3_target_debug_mode: $et_debug_mode" 2
866 return $et_debug_mode