llvm-gcc-4.2/libstdc++-v3/testsuite/lib/libstdc++.exp - llvm-archive - Git at Google

 # libstdc++ "tool init file" for DejaGNU

 # Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
 # Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 # 02110-1301, USA.


 # Define callbacks and load other libraries.  This file is loaded relatively
 # early, and before any other file we write ourselves.  "load_lib" will
 # find anything in the DejaGNU installation tree, or in our lib directory.
 # "load_gcc_lib" will search the core compiler's .exp collection instead.
 #
 # The naming rule is that dg.exp looks for "tool-" and runtest.exp looks
 # for "tool_" when finding callbacks.  Utility routines we define for
 # our callbacks begin with "v3-".
 #
 # libstdc++_* callbacks we don't define, but could:
 # ..._option_help           prints additional --help output
 # ..._option_proc (--foo)   process our own options
 # ..._init (normal.exp)     called once per test file
 # ..._finish                bracketing function for libstdc++_init
 # ...-dg-prune              removing output text, see top of system dg.exp
 #
 # Useful hook:  if ${hostname}_init exists, it will be called, almost
 # the last thing before testing begins.  This can be defined in, e.g.,
 # ~/.dejagnurc or $DEJAGNU.

 proc load_gcc_lib { filename } {
     global srcdir
     load_file $srcdir/../../gcc/testsuite/lib/$filename
 }

 # system routines
 load_lib dg.exp
 load_lib libgloss.exp
 # compiler routines, then ours
 load_gcc_lib target-supports.exp
 load_gcc_lib target-supports-dg.exp
 load_lib prune.exp
 load_lib dg-options.exp
 load_gcc_lib target-libpath.exp
 load_gcc_lib wrapper.exp

 # Useful for debugging.  Pass the name of a variable and the verbosity
 # threshold (number of -v's on the command line).
 proc v3track { var n } {
     upvar $var val
     verbose "++ $var is $val" $n
 }

 # Called by v3-init below.  "Static" to this file.
 proc v3-copy-files {srcfiles} {
     foreach f $srcfiles {
         if { [catch { set symlink [file readlink $f] } x] } then {
 	    remote_download target $f
         } else {
             if { [regexp "^/" "$symlink"] } then {
 		remote_download target $symlink
             } else {
                 set dirname [file dirname $f]
 		remote_download target $dirname/$symlink
             }
         }
     }
 }

 # Called once, during runtest.exp setup.
 proc libstdc++_init { testfile } {
     global env
     global v3-sharedlib
     global srcdir blddir objdir tool_root_dir
     global cxx cxxflags cxxldflags
     global includes
     global gluefile wrap_flags
     global ld_library_path
     global target_triplet
     global flags_file

     # We set LC_ALL and LANG to C so that we get the same error
     # messages as expected.
     setenv LC_ALL C
     setenv LANG C

     set blddir [lookfor_file [get_multilibs] libstdc++-v3]
     set flags_file "${blddir}/scripts/testsuite_flags"
     v3track flags_file 2

     # If a test doesn't have special options, use DEFAULT_CXXFLAGS.
     # Use this variable if the behavior
     #   1) only applies to libstdc++ testing
     #   2) might need to be negated
     # In particular, some tests have to be run without precompiled
     # headers, or without assertions.
     global DEFAULT_CXXFLAGS
     if ![info exists DEFAULT_CXXFLAGS] then {
 	set DEFAULT_CXXFLAGS ""
 	# Host specific goo here.
 	if { [string match "powerpc-*-darwin*" $target_triplet] } {
 	    append DEFAULT_CXXFLAGS " -multiply_defined suppress"
 	}
     }
     v3track DEFAULT_CXXFLAGS 2

     # By default, we assume we want to run program images.
     global dg-do-what-default
     set dg-do-what-default run

     # Copy any required data files.
     v3-copy-files [glob -nocomplain "$srcdir/data/*.tst"]
     v3-copy-files [glob -nocomplain "$srcdir/data/*.txt"]

     # Locate libgcc.a so we don't need to account for different values of
     # SHLIB_EXT on different platforms
     set gccdir [lookfor_file $tool_root_dir gcc/libgcc.a]
     if {$gccdir != ""} {
         set gccdir [file dirname $gccdir]
     }
     v3track gccdir 3

     # Look for shared library. (ie libstdc++.so.)
     set v3-sharedlib 0
     set sharedlibdir [lookfor_file $blddir src/.libs/libstdc++.so]
     if {$sharedlibdir != ""} {
 	if { [string match "*-*-linux*" $target_triplet] && [isnative] } {
 	    set v3-sharedlib 1
 	    verbose -log "shared library support detected"
 	}
     }
     v3track v3-sharedlib 3

     # Compute what needs to be added to the existing LD_LIBRARY_PATH.
     if {$gccdir != ""} {
 	set ld_library_path ""
 	append ld_library_path ":${gccdir}"
 	set compiler ${gccdir}/g++
 	append ld_library_path ":${blddir}/src/.libs"

 	if { [is_remote host] == 0 && [which $compiler] != 0 } {
 	  foreach i "[exec $compiler --print-multi-lib]" {
 	    set mldir ""
 	    regexp -- "\[a-z0-9=_/\.-\]*;" $i mldir
 	    set mldir [string trimright $mldir "\;@"]
 	    if { "$mldir" == "." } {
 	      continue
 	    }
 	    if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s*.so.*]] >= 1 } {
 	      append ld_library_path ":${gccdir}/${mldir}"
 	    }
 	  }
 	}

 	set_ld_library_path_env_vars
 	if [info exists env(LD_LIBRARY_PATH)] {
 	  verbose -log "LD_LIBRARY_PATH = $env(LD_LIBRARY_PATH)"
 	}
     } else {
 	set compiler [transform "g++"]
     }

     # Do a bunch of handstands and backflips for cross compiling and
     # finding simulators...
     if [is_remote host] {
         set header [remote_download host ${blddir}/testsuite/util/testsuite_hooks.h]
         if { $header == "" } {
             verbose -log "Unable to download ${blddir}/testsuite/util/testsuite_hooks.h to host."
             return "untested"
         }
       set cxx [transform "g++"]
       set cxxflags "-ggdb3"
       set cxxldflags ""
       set includes "-I./"
     } else {
         # If we find a testsuite_flags file, we're testing in the build dir.
         if { [file exists $flags_file] } {
             set cxx [exec sh $flags_file --build-cxx]
             set cxxflags [exec sh $flags_file --cxxflags]
             set cxxldflags [exec sh $flags_file --cxxldflags]
             set includes [exec sh $flags_file --build-includes]
         } else {
             set cxx [transform "g++"]
             set cxxldflags ""
             set cxxflags "-g -O2 -D_GLIBCXX_ASSERT -fmessage-length=0"
             set includes "-I${srcdir}/util"
         }
     }

     # Always use MO files built by this test harness.
     set cxxflags "$cxxflags -DLOCALEDIR=\".\""

     # If a PCH file is available, use it.  We must delay performing
     # this check until $cxx and such have been initialized because we
     # perform a test compilation.  (Ideally, gcc --print-file-name would
     # list PCH files, but it does not.)
     global PCH_CXXFLAGS
     if ![info exists PCH_CXXFLAGS] then {
 	set src "config[pid].cc"
 	set f [open $src "w"]
 	puts $f "int main () {}"
 	close $f

 	set lines [v3_target_compile $src "config[pid].o" object \
 	         "additional_flags=-include additional_flags=bits/stdtr1c++.h"]
 	if {$lines == "" } {
 #	    set PCH_CXXFLAGS "-include bits/extc++.h"
 #	    set PCH_CXXFLAGS "-include bits/stdtr1c++.h"
 	    set PCH_CXXFLAGS "-include bits/stdc++.h"
 	} else {
 	    set PCH_CXXFLAGS ""
 	}
 	file delete $src
 	v3track PCH_CXXFLAGS 2
     }

     libstdc++_maybe_build_wrapper "${objdir}/testglue.o" "-fexceptions"
 }

 # Callback for cleanup routines.
 proc libstdc++_exit { } {
     global gluefile;

     if [info exists gluefile] {
 	file_on_build delete $gluefile;
 	unset gluefile;
     }
 }

 # Callback from system dg-test.
 proc libstdc++-dg-test { prog do_what extra_tool_flags } {
     # Set up the compiler flags, based on what we're going to do.
     switch $do_what {
         "preprocess" {
             set compile_type "preprocess"
             set output_file "[file rootname [file tail $prog]].i"
         }
         "compile" {
             set compile_type "assembly"
             set output_file "[file rootname [file tail $prog]].s"
         }
         "assemble" {
             set compile_type "object"
             set output_file "[file rootname [file tail $prog]].o"
         }
         "link" {
             set compile_type "executable"
             set output_file "./[file rootname [file tail $prog]].exe"
         }
         "run" {
             set compile_type "executable"
             # FIXME: "./" is to cope with "." not being in $PATH.
             # Should this be handled elsewhere?
             # YES.
             set output_file "./[file rootname [file tail $prog]].exe"
             # This is the only place where we care if an executable was
             # created or not.  If it was, dg.exp will try to run it.
             catch { remote_file build delete $output_file }
         }
 	default {
             perror "$do_what: not a valid dg-do keyword"
             return ""
         }
     }

     # Short-circut a bunch of complicated goo here for the special
     # case of compiling a test file as a "C" file, not as C++. Why? So
     # -nostdc++ doesn't trip us up. So all the extra object files
     # don't trip us up. So automatically linking in libstdc++ doesn't
     # happen. So CXXFLAGS don't error.
     set select_compile "v3_target_compile"
     set options ""
     if { $extra_tool_flags != "" } {
 	verbose -log "extra_tool_flags are:"
 	verbose -log $extra_tool_flags
 	if { [string first "-x c" $extra_tool_flags ] != -1 } {
 	    verbose -log "compiling and executing as C, not C++"
 	    set edit_tool_flags $extra_tool_flags
 	    regsub -all ".x c" $edit_tool_flags "" edit_tool_flags
 	    lappend options "additional_flags=$edit_tool_flags"
 	    set select_compile "v3_target_compile_as_c"
         } else {
 	    lappend options "additional_flags=$extra_tool_flags"
 	}
     }

     # There is a libstdc++_compile made for us by default (via the tool-
     # and-target file), but the defaults are lacking in goodness.
     set comp_output [$select_compile "$prog" "$output_file" "$compile_type" $options];
     set comp_output [ prune_g++_output $comp_output ];

     return [list $comp_output $output_file]
 }

 # True if the library supports wchar_t.
 set v3-wchar_t 0

 # True if the library supports threads.
 set v3-threads 0

 # True if the library supports symbol versioning.
 set v3-symver 0

 # Called from libstdc++-dg-test above.  Calls back into system's
 # target_compile to actually do the work.
 proc v3_target_compile { source dest type options } {
     global gluefile
     global wrap_flags
     global cxx
     global cxxflags
     global cxxldflags
     global includes

     if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {
         lappend options "libs=${gluefile}"
         lappend options "ldflags=${wrap_flags}"
     }

     set cxx_final $cxx
     set cxxlibglossflags  [libgloss_link_flags]
     set cxx_final [concat $cxx_final $cxxlibglossflags]
     set cxx_final [concat $cxx_final $cxxflags]
     set cxx_final [concat $cxx_final $includes]

     # Flag setting based on type argument.
     if { $type == "executable" } {
 	# Link the support objects into executables.
         set cxx_final [concat $cxx_final $cxxldflags]
 	lappend options "additional_flags=./libtestc++.a"
     } else {
 	if { $type == "sharedlib" } {
 	    # Don't link in anything.
 	    set type "executable"
 	}
     }

     lappend options "compiler=$cxx_final"
     lappend options "timeout=600"

     return [target_compile $source $dest $type $options]
 }


 # Called from libstdc++-dg-test above, but only for "C" compilation.
 # Calls back into system's target_compile to actually do the work.
 proc v3_target_compile_as_c { source dest type options } {
     global gluefile
     global wrap_flags
     global includes
     global flags_file
     global blddir

     if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {
         lappend options "libs=${gluefile}"
         lappend options "ldflags=${wrap_flags}"
     }

     set tname [target_info name]
     set cc [board_info $tname compiler]
     set cc_final $cc
     set cxxlibglossflags [libgloss_link_flags]
     set cc_final [concat $cc_final $cxxlibglossflags]
     set cc_final [concat $cc_final $includes]
     regsub -all ".nostdinc.." $cc_final "" cc_final

     # This is needed for "C" tests, as this type of test may need the
     # C++ includes. And if we're not testing in the build directory,
     # the includes variable is not likely to include the necessary info.
     if { ![file exists $flags_file] } {
 	set version [exec ${cc} -dumpversion]
 	set machine [exec ${cc} -dumpmachine]
 	set comp_base_dir [file dirname [file dirname [file dirname [file dirname [file dirname [exec ${cc} --print-prog-name=cc1]]]]]]
 	set includesbase "${comp_base_dir}/include/c++/${version}"
 	set includestarget "${includesbase}/${machine}"
 	set cc_final [concat $cc_final "-I$includesbase -I$includestarget"]

         set libsup "${comp_base_dir}/lib"
     } else {
         set libsup "${blddir}/libsupc++/.libs"
     }

     set cc_final [concat $cc_final "-L$libsup"]

     lappend options "compiler=$cc_final"
     lappend options "timeout=600"

     return [target_compile $source $dest $type $options]
 }

 # Build the support objects linked in with the libstdc++ tests.  In
 # addition, set v3-wchar_t, v3-threads, and v3-symver appropriately.
 proc v3-build_support { } {
     global srcdir
     global v3-wchar_t
     global v3-threads
     global v3-symver
     global v3-sharedlib

     # Figure out whether or not the library supports certain features.
     set v3-wchar_t 0
     set v3-threads 0
     set v3-symver 0
     set libtest_objs ""

     set config_src "config.cc"
     set f [open $config_src "w"]
     puts $f "#include <bits/c++config.h>"
     puts $f "#include <bits/gthr.h>"
     close $f
     set preprocessed [v3_target_compile $config_src "" \
 	    	       preprocess "additional_flags=-dN"]
     if { [string first "_GLIBCXX_USE_WCHAR_T" $preprocessed] != -1 } {
 	verbose -log "wchar_t support detected"
 	set v3-wchar_t 1
     }
     if { [string first "_GLIBCXX_SYMVER" $preprocessed] != -1 } {
 	verbose -log "symbol versioning support detected"
 	set v3-symver 1
     }
     if { [string first "__GTHREADS" $preprocessed] != -1 } {
 	verbose -log "thread support detected"
 	set v3-threads 1
     }

     # Try to build the MO files that are used by some of the locale
     # tests.  If we can't build them, that's OK; it just means that
     # those tests will fail.
     foreach lang [list "fr" "de"] {
 	catch {
 	    file mkdir "$lang/LC_MESSAGES"
 	    remote_exec "build" "msgfmt" "-o $lang/LC_MESSAGES/libstdc++.mo $srcdir/../po/$lang.po"
 	    if [is_remote host] {
 		remote_exec "host" "mkdir" "-p $lang/LC_MESSAGES"
 		remote_download "host" "$lang/LC_MESSAGES/libstdc++.mo" "$lang/LC_MESSAGES/libstdc++.mo"
 	    }
 	}
     }

     # Build the support objects.
     set source_files [list testsuite_abi.cc testsuite_allocator.cc \
 			  testsuite_character.cc testsuite_hooks.cc \
 	       	 rng/twister_rand_gen.cc io/verified_cmd_line_input.cc \
 			  io/prog_bar.cc performance/time/elapsed_timer.cc ]
     foreach f $source_files {
 	set obj [file rootname $f].o
 	set object_file [file tail $obj]
 	# Compile with "-w" so that warnings issued by the compiler
 	# do not prevent compilation.
 	if { [v3_target_compile $srcdir/util/$f $object_file "object" \
 		  [list "incdir=$srcdir" "additional_flags=-w"]]
 	     != "" } {
 	    error "could not compile $f"
 	}
 	append libtest_objs "$object_file "
     }

     # Collect into libtestc++.a
     set ar [transform "ar"]
     set arcommand "$ar -rc ./libtestc++.a ${libtest_objs}"
     set result [lindex [local_exec "$arcommand" "" "" 300] 0]
     verbose "link result is $result"
     if { $result == 0 } {
 	set ranlib [transform "ranlib"]
 	set ranlibcommand "$ranlib ./libtestc++.a"
 	set result [lindex [local_exec "$ranlibcommand" "" "" 300] 0]
 	if { $result != 0 } {
 	    error "could not link libtestc++.a"
 	}
     }

     # Build any shared objects needed for regression testing.
     if { ${v3-sharedlib} == 1 } {
 	set source_files [list testsuite_shared.cc]
 	foreach f $source_files {
 	    set object_file [file rootname $f].so
 	    # Compile with "-w" so that warnings issued by the compiler
 	    # do not prevent compilation.
 	    if { [v3_target_compile $srcdir/util/$f $object_file "sharedlib" \
 	     [list "incdir=$srcdir" "additional_flags=-w -shared -fPIC -DPIC"]]
 		 != "" } {
 		error "could not compile $f"
 	    }
 	}
     }
 }

 proc check_v3_target_sharedlib { } {
     global v3-sharedlib
     return ${v3-sharedlib}
 }

 proc check_v3_target_namedlocale { } {
     global et_namedlocale_saved
     global et_namedlocale_target_name
     global tool

     if { ![info exists et_namedlocale_target_name] } {
 	set et_namedlocale_target_name ""
     }

     # If the target has changed since we set the cached value, clear it.
     set current_target [current_target_name]
     if { $current_target != $et_namedlocale_target_name } {
 	verbose "check_v3_target_namedlocale: `$et_namedlocale_target_name'" 2
 	set et_namedlocale_target_name $current_target
 	if [info exists et_namedlocale_saved] {
 	    verbose "check_v3_target_namedlocale: removing cached result" 2
 	    unset et_namedlocale_saved
 	}
     }

     if [info exists et_namedlocale_saved] {
 	verbose "check_v3_target_namedlocale: using cached result" 2
     } else {
 	set et_namedlocale_saved 0

 	# Set up, compile, and execute a C++ test program that tries to use
 	# all the required named locales.
 	set src nlocale[pid].cc
 	set exe nlocale[pid].x

 	set f [open $src "w"]
 	puts $f "#include <locale>"
 	puts $f "using namespace std;"
 	puts $f "int main ()"
 	puts $f "{"
 	puts $f "  try"
 	puts $f "  {"
 	puts $f "     locale(\"\");"
 	puts $f "     locale(\"de_DE\");"
 	puts $f "     locale(\"de_DE.ISO-8859-15@euro\");"
 	puts $f "     locale(\"de_DE@euro\");"
 	puts $f "     locale(\"en_HK\");"
 	puts $f "     locale(\"en_PH\");"
 	puts $f "     locale(\"en_US\");"
 	puts $f "     locale(\"en_US.ISO-8859-1\");"
 	puts $f "     locale(\"en_US.ISO-8859-15\");"
 	puts $f "     locale(\"en_US.UTF-8\");"
 	puts $f "     locale(\"es_ES\");"
 	puts $f "     locale(\"es_MX\");"
 	puts $f "     locale(\"fr_FR\");"
 	puts $f "     locale(\"fr_FR@euro\");"
 	puts $f "     locale(\"is_IS\");"
 	puts $f "     locale(\"is_IS.UTF-8\");"
 	puts $f "     locale(\"it_IT\");"
 	puts $f "     locale(\"ja_JP.eucjp\");"
 	puts $f "     locale(\"se_NO.UTF-8\");"
 	puts $f "     locale(\"ta_IN\");"
 	puts $f "     locale(\"zh_TW\");"
 	puts $f "     return 0;"
 	puts $f "  }"
 	puts $f "  catch(...)"
 	puts $f "  {"
 	puts $f "     return 1;"
 	puts $f "  }"
 	puts $f "}"
 	close $f

 	set lines [v3_target_compile $src $exe executable ""]
 	file delete $src

 	if [string match "" $lines] {
 	    # No error message, compilation succeeded.
 	    set result [${tool}_load "./$exe" "" ""]
 	    set status [lindex $result 0]
 	    remote_file build delete $exe

 	    verbose "check_v3_target_namedlocale: status is <$status>" 2

 	    if { $status == "pass" } {
 		set et_namedlocale_saved 1
 	    }
 	} else {
 	    verbose "check_v3_target_namedlocale: compilation failed" 2
 	}
     }
     return $et_namedlocale_saved
 }

 proc check_v3_target_debug_mode { } {
     global cxxflags
     global et_debug_mode

     global tool

     if { ![info exists et_debug_mode_target_name] } {
 	set et_debug_mode_target_name ""
     }

     # If the target has changed since we set the cached value, clear it.
     set current_target [current_target_name]
     if { $current_target != $et_debug_mode_target_name } {
 	verbose "check_v3_target_debug_mode: `$et_debug_mode_target_name'" 2
 	set et_debug_mode_target_name $current_target
 	if [info exists et_debug_mode] {
 	    verbose "check_v3_target_debug_mode: removing cached result" 2
 	    unset et_debug_mode
 	}
     }

     if [info exists et_debug_mode] {
 	verbose "check_v3_target_debug_mode: using cached result" 2
     } else {
 	set et_debug_mode 0

 	# Set up, compile, and execute a C++ test program that depends
 	# on debug mode working.
 	set src debug_mode[pid].cc
 	set exe debug_mode[pid].exe

 	set f [open $src "w"]
 	puts $f "#include <string>"
 	puts $f "using namespace std;"
 	puts $f "int main()"
 	puts $f "{ return 0; }"
 	close $f

 	set cxxflags_saved $cxxflags
 	set cxxflags "$cxxflags -Werror -O0 -D_GLIBCXX_DEBUG"
 	set lines [v3_target_compile $src $exe executable ""]
 	set cxxflags $cxxflags_saved
 	file delete $src

 	if [string match "" $lines] {
 	    # No error message, compilation succeeded.
 	    set et_debug_mode 1
 	}
     }
     verbose "check_v3_target_debug_mode: $et_debug_mode" 2
     return $et_debug_mode
 }
	# libstdc++ "tool init file" for DejaGNU

	# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
	# Free Software Foundation, Inc.
	#
	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License as published by
	# the Free Software Foundation; either version 2 of the License, or
	# (at your option) any later version.
	#
	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program; if not, write to the Free Software
	# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	# 02110-1301, USA.


	# Define callbacks and load other libraries. This file is loaded relatively
	# early, and before any other file we write ourselves. "load_lib" will
	# find anything in the DejaGNU installation tree, or in our lib directory.
	# "load_gcc_lib" will search the core compiler's .exp collection instead.
	#
	# The naming rule is that dg.exp looks for "tool-" and runtest.exp looks
	# for "tool_" when finding callbacks. Utility routines we define for
	# our callbacks begin with "v3-".
	#
	# libstdc++_* callbacks we don't define, but could:
	# ..._option_help prints additional --help output
	# ..._option_proc (--foo) process our own options
	# ..._init (normal.exp) called once per test file
	# ..._finish bracketing function for libstdc++_init
	# ...-dg-prune removing output text, see top of system dg.exp
	#
	# Useful hook: if ${hostname}_init exists, it will be called, almost
	# the last thing before testing begins. This can be defined in, e.g.,
	# ~/.dejagnurc or $DEJAGNU.

	proc load_gcc_lib { filename } {
	global srcdir
	load_file $srcdir/../../gcc/testsuite/lib/$filename
	}

	# system routines
	load_lib dg.exp
	load_lib libgloss.exp
	# compiler routines, then ours
	load_gcc_lib target-supports.exp
	load_gcc_lib target-supports-dg.exp
	load_lib prune.exp
	load_lib dg-options.exp
	load_gcc_lib target-libpath.exp
	load_gcc_lib wrapper.exp

	# Useful for debugging. Pass the name of a variable and the verbosity
	# threshold (number of -v's on the command line).
	proc v3track { var n } {
	upvar $var val
	verbose "++ $var is $val" $n
	}

	# Called by v3-init below. "Static" to this file.
	proc v3-copy-files {srcfiles} {
	foreach f $srcfiles {
	if { [catch { set symlink [file readlink $f] } x] } then {
	remote_download target $f
	} else {
	if { [regexp "^/" "$symlink"] } then {
	remote_download target $symlink
	} else {
	set dirname [file dirname $f]
	remote_download target $dirname/$symlink
	}
	}
	}
	}

	# Called once, during runtest.exp setup.
	proc libstdc++_init { testfile } {
	global env
	global v3-sharedlib
	global srcdir blddir objdir tool_root_dir
	global cxx cxxflags cxxldflags
	global includes
	global gluefile wrap_flags
	global ld_library_path
	global target_triplet
	global flags_file

	# We set LC_ALL and LANG to C so that we get the same error
	# messages as expected.
	setenv LC_ALL C
	setenv LANG C

	set blddir [lookfor_file [get_multilibs] libstdc++-v3]
	set flags_file "${blddir}/scripts/testsuite_flags"
	v3track flags_file 2

	# If a test doesn't have special options, use DEFAULT_CXXFLAGS.
	# Use this variable if the behavior
	# 1) only applies to libstdc++ testing
	# 2) might need to be negated
	# In particular, some tests have to be run without precompiled
	# headers, or without assertions.
	global DEFAULT_CXXFLAGS
	if ![info exists DEFAULT_CXXFLAGS] then {
	set DEFAULT_CXXFLAGS ""
	# Host specific goo here.
	if { [string match "powerpc--darwin" $target_triplet] } {
	append DEFAULT_CXXFLAGS " -multiply_defined suppress"
	}
	}
	v3track DEFAULT_CXXFLAGS 2

	# By default, we assume we want to run program images.
	global dg-do-what-default
	set dg-do-what-default run

	# Copy any required data files.
	v3-copy-files [glob -nocomplain "$srcdir/data/*.tst"]
	v3-copy-files [glob -nocomplain "$srcdir/data/*.txt"]

	# Locate libgcc.a so we don't need to account for different values of
	# SHLIB_EXT on different platforms
	set gccdir [lookfor_file $tool_root_dir gcc/libgcc.a]
	if {$gccdir != ""} {
	set gccdir [file dirname $gccdir]
	}
	v3track gccdir 3

	# Look for shared library. (ie libstdc++.so.)
	set v3-sharedlib 0
	set sharedlibdir [lookfor_file $blddir src/.libs/libstdc++.so]
	if {$sharedlibdir != ""} {
	if { [string match "--linux*" $target_triplet] && [isnative] } {
	set v3-sharedlib 1
	verbose -log "shared library support detected"
	}
	}
	v3track v3-sharedlib 3

	# Compute what needs to be added to the existing LD_LIBRARY_PATH.
	if {$gccdir != ""} {
	set ld_library_path ""
	append ld_library_path ":${gccdir}"
	set compiler ${gccdir}/g++
	append ld_library_path ":${blddir}/src/.libs"

	if { [is_remote host] == 0 && [which $compiler] != 0 } {
	foreach i "[exec $compiler --print-multi-lib]" {
	set mldir ""
	regexp -- "\[a-z0-9=_/\.-\]*;" $i mldir
	set mldir [string trimright $mldir "\;@"]
	if { "$mldir" == "." } {
	continue
	}
	if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s.so.]] >= 1 } {
	append ld_library_path ":${gccdir}/${mldir}"
	}
	}
	}

	set_ld_library_path_env_vars
	if [info exists env(LD_LIBRARY_PATH)] {
	verbose -log "LD_LIBRARY_PATH = $env(LD_LIBRARY_PATH)"
	}
	} else {
	set compiler [transform "g++"]
	}

	# Do a bunch of handstands and backflips for cross compiling and
	# finding simulators...
	if [is_remote host] {
	set header [remote_download host ${blddir}/testsuite/util/testsuite_hooks.h]
	if { $header == "" } {
	verbose -log "Unable to download ${blddir}/testsuite/util/testsuite_hooks.h to host."
	return "untested"
	}
	set cxx [transform "g++"]
	set cxxflags "-ggdb3"
	set cxxldflags ""
	set includes "-I./"
	} else {
	# If we find a testsuite_flags file, we're testing in the build dir.
	if { [file exists $flags_file] } {
	set cxx [exec sh $flags_file --build-cxx]
	set cxxflags [exec sh $flags_file --cxxflags]
	set cxxldflags [exec sh $flags_file --cxxldflags]
	set includes [exec sh $flags_file --build-includes]
	} else {
	set cxx [transform "g++"]
	set cxxldflags ""
	set cxxflags "-g -O2 -D_GLIBCXX_ASSERT -fmessage-length=0"
	set includes "-I${srcdir}/util"
	}
	}

	# Always use MO files built by this test harness.
	set cxxflags "$cxxflags -DLOCALEDIR=\".\""

	# If a PCH file is available, use it. We must delay performing
	# this check until $cxx and such have been initialized because we
	# perform a test compilation. (Ideally, gcc --print-file-name would
	# list PCH files, but it does not.)
	global PCH_CXXFLAGS
	if ![info exists PCH_CXXFLAGS] then {
	set src "config[pid].cc"
	set f [open $src "w"]
	puts $f "int main () {}"
	close $f

	set lines [v3_target_compile $src "config[pid].o" object \
	"additional_flags=-include additional_flags=bits/stdtr1c++.h"]
	if {$lines == "" } {
	# set PCH_CXXFLAGS "-include bits/extc++.h"
	# set PCH_CXXFLAGS "-include bits/stdtr1c++.h"
	set PCH_CXXFLAGS "-include bits/stdc++.h"
	} else {
	set PCH_CXXFLAGS ""
	}
	file delete $src
	v3track PCH_CXXFLAGS 2
	}

	libstdc++_maybe_build_wrapper "${objdir}/testglue.o" "-fexceptions"
	}

	# Callback for cleanup routines.
	proc libstdc++_exit { } {
	global gluefile;

	if [info exists gluefile] {
	file_on_build delete $gluefile;
	unset gluefile;
	}
	}

	# Callback from system dg-test.
	proc libstdc++-dg-test { prog do_what extra_tool_flags } {
	# Set up the compiler flags, based on what we're going to do.
	switch $do_what {
	"preprocess" {
	set compile_type "preprocess"
	set output_file "[file rootname [file tail $prog]].i"
	}
	"compile" {
	set compile_type "assembly"
	set output_file "[file rootname [file tail $prog]].s"
	}
	"assemble" {
	set compile_type "object"
	set output_file "[file rootname [file tail $prog]].o"
	}
	"link" {
	set compile_type "executable"
	set output_file "./[file rootname [file tail $prog]].exe"
	}
	"run" {
	set compile_type "executable"
	# FIXME: "./" is to cope with "." not being in $PATH.
	# Should this be handled elsewhere?
	# YES.
	set output_file "./[file rootname [file tail $prog]].exe"
	# This is the only place where we care if an executable was
	# created or not. If it was, dg.exp will try to run it.
	catch { remote_file build delete $output_file }
	}
	default {
	perror "$do_what: not a valid dg-do keyword"
	return ""
	}
	}

	# Short-circut a bunch of complicated goo here for the special
	# case of compiling a test file as a "C" file, not as C++. Why? So
	# -nostdc++ doesn't trip us up. So all the extra object files
	# don't trip us up. So automatically linking in libstdc++ doesn't
	# happen. So CXXFLAGS don't error.
	set select_compile "v3_target_compile"
	set options ""
	if { $extra_tool_flags != "" } {
	verbose -log "extra_tool_flags are:"
	verbose -log $extra_tool_flags
	if { [string first "-x c" $extra_tool_flags ] != -1 } {
	verbose -log "compiling and executing as C, not C++"
	set edit_tool_flags $extra_tool_flags
	regsub -all ".x c" $edit_tool_flags "" edit_tool_flags
	lappend options "additional_flags=$edit_tool_flags"
	set select_compile "v3_target_compile_as_c"
	} else {
	lappend options "additional_flags=$extra_tool_flags"
	}
	}

	# There is a libstdc++_compile made for us by default (via the tool-
	# and-target file), but the defaults are lacking in goodness.
	set comp_output [$select_compile "$prog" "$output_file" "$compile_type" $options];
	set comp_output [ prune_g++_output $comp_output ];

	return [list $comp_output $output_file]
	}

	# True if the library supports wchar_t.
	set v3-wchar_t 0

	# True if the library supports threads.
	set v3-threads 0

	# True if the library supports symbol versioning.
	set v3-symver 0

	# Called from libstdc++-dg-test above. Calls back into system's
	# target_compile to actually do the work.
	proc v3_target_compile { source dest type options } {
	global gluefile
	global wrap_flags
	global cxx
	global cxxflags
	global cxxldflags
	global includes

	if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {
	lappend options "libs=${gluefile}"
	lappend options "ldflags=${wrap_flags}"
	}

	set cxx_final $cxx
	set cxxlibglossflags [libgloss_link_flags]
	set cxx_final [concat $cxx_final $cxxlibglossflags]
	set cxx_final [concat $cxx_final $cxxflags]
	set cxx_final [concat $cxx_final $includes]

	# Flag setting based on type argument.
	if { $type == "executable" } {
	# Link the support objects into executables.
	set cxx_final [concat $cxx_final $cxxldflags]
	lappend options "additional_flags=./libtestc++.a"
	} else {
	if { $type == "sharedlib" } {
	# Don't link in anything.
	set type "executable"
	}
	}

	lappend options "compiler=$cxx_final"
	lappend options "timeout=600"

	return [target_compile $source $dest $type $options]
	}


	# Called from libstdc++-dg-test above, but only for "C" compilation.
	# Calls back into system's target_compile to actually do the work.
	proc v3_target_compile_as_c { source dest type options } {
	global gluefile
	global wrap_flags
	global includes
	global flags_file
	global blddir

	if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {
	lappend options "libs=${gluefile}"
	lappend options "ldflags=${wrap_flags}"
	}

	set tname [target_info name]
	set cc [board_info $tname compiler]
	set cc_final $cc
	set cxxlibglossflags [libgloss_link_flags]
	set cc_final [concat $cc_final $cxxlibglossflags]
	set cc_final [concat $cc_final $includes]
	regsub -all ".nostdinc.." $cc_final "" cc_final

	# This is needed for "C" tests, as this type of test may need the
	# C++ includes. And if we're not testing in the build directory,
	# the includes variable is not likely to include the necessary info.
	if { ![file exists $flags_file] } {
	set version [exec ${cc} -dumpversion]
	set machine [exec ${cc} -dumpmachine]
	set comp_base_dir [file dirname [file dirname [file dirname [file dirname [file dirname [exec ${cc} --print-prog-name=cc1]]]]]]
	set includesbase "${comp_base_dir}/include/c++/${version}"
	set includestarget "${includesbase}/${machine}"
	set cc_final [concat $cc_final "-I$includesbase -I$includestarget"]

	set libsup "${comp_base_dir}/lib"
	} else {
	set libsup "${blddir}/libsupc++/.libs"
	}

	set cc_final [concat $cc_final "-L$libsup"]

	lappend options "compiler=$cc_final"
	lappend options "timeout=600"

	return [target_compile $source $dest $type $options]
	}

	# Build the support objects linked in with the libstdc++ tests. In
	# addition, set v3-wchar_t, v3-threads, and v3-symver appropriately.
	proc v3-build_support { } {
	global srcdir
	global v3-wchar_t
	global v3-threads
	global v3-symver
	global v3-sharedlib

	# Figure out whether or not the library supports certain features.
	set v3-wchar_t 0
	set v3-threads 0
	set v3-symver 0
	set libtest_objs ""

	set config_src "config.cc"
	set f [open $config_src "w"]
	puts $f "#include <bits/c++config.h>"
	puts $f "#include <bits/gthr.h>"
	close $f
	set preprocessed [v3_target_compile $config_src "" \
	preprocess "additional_flags=-dN"]
	if { [string first "_GLIBCXX_USE_WCHAR_T" $preprocessed] != -1 } {
	verbose -log "wchar_t support detected"
	set v3-wchar_t 1
	}
	if { [string first "_GLIBCXX_SYMVER" $preprocessed] != -1 } {
	verbose -log "symbol versioning support detected"
	set v3-symver 1
	}
	if { [string first "__GTHREADS" $preprocessed] != -1 } {
	verbose -log "thread support detected"
	set v3-threads 1
	}

	# Try to build the MO files that are used by some of the locale
	# tests. If we can't build them, that's OK; it just means that
	# those tests will fail.
	foreach lang [list "fr" "de"] {
	catch {
	file mkdir "$lang/LC_MESSAGES"
	remote_exec "build" "msgfmt" "-o $lang/LC_MESSAGES/libstdc++.mo $srcdir/../po/$lang.po"
	if [is_remote host] {
	remote_exec "host" "mkdir" "-p $lang/LC_MESSAGES"
	remote_download "host" "$lang/LC_MESSAGES/libstdc++.mo" "$lang/LC_MESSAGES/libstdc++.mo"
	}
	}
	}

	# Build the support objects.
	set source_files [list testsuite_abi.cc testsuite_allocator.cc \
	testsuite_character.cc testsuite_hooks.cc \
	rng/twister_rand_gen.cc io/verified_cmd_line_input.cc \
	io/prog_bar.cc performance/time/elapsed_timer.cc ]
	foreach f $source_files {
	set obj [file rootname $f].o
	set object_file [file tail $obj]
	# Compile with "-w" so that warnings issued by the compiler
	# do not prevent compilation.
	if { [v3_target_compile $srcdir/util/$f $object_file "object" \
	[list "incdir=$srcdir" "additional_flags=-w"]]
	!= "" } {
	error "could not compile $f"
	}
	append libtest_objs "$object_file "
	}

	# Collect into libtestc++.a
	set ar [transform "ar"]
	set arcommand "$ar -rc ./libtestc++.a ${libtest_objs}"
	set result [lindex [local_exec "$arcommand" "" "" 300] 0]
	verbose "link result is $result"
	if { $result == 0 } {
	set ranlib [transform "ranlib"]
	set ranlibcommand "$ranlib ./libtestc++.a"
	set result [lindex [local_exec "$ranlibcommand" "" "" 300] 0]
	if { $result != 0 } {
	error "could not link libtestc++.a"
	}
	}

	# Build any shared objects needed for regression testing.
	if { ${v3-sharedlib} == 1 } {
	set source_files [list testsuite_shared.cc]
	foreach f $source_files {
	set object_file [file rootname $f].so
	# Compile with "-w" so that warnings issued by the compiler
	# do not prevent compilation.
	if { [v3_target_compile $srcdir/util/$f $object_file "sharedlib" \
	[list "incdir=$srcdir" "additional_flags=-w -shared -fPIC -DPIC"]]
	!= "" } {
	error "could not compile $f"
	}
	}
	}
	}

	proc check_v3_target_sharedlib { } {
	global v3-sharedlib
	return ${v3-sharedlib}
	}

	proc check_v3_target_namedlocale { } {
	global et_namedlocale_saved
	global et_namedlocale_target_name
	global tool

	if { ![info exists et_namedlocale_target_name] } {
	set et_namedlocale_target_name ""
	}

	# If the target has changed since we set the cached value, clear it.
	set current_target [current_target_name]
	if { $current_target != $et_namedlocale_target_name } {
	verbose "check_v3_target_namedlocale: `$et_namedlocale_target_name'" 2
	set et_namedlocale_target_name $current_target
	if [info exists et_namedlocale_saved] {
	verbose "check_v3_target_namedlocale: removing cached result" 2
	unset et_namedlocale_saved
	}
	}

	if [info exists et_namedlocale_saved] {
	verbose "check_v3_target_namedlocale: using cached result" 2
	} else {
	set et_namedlocale_saved 0

	# Set up, compile, and execute a C++ test program that tries to use
	# all the required named locales.
	set src nlocale[pid].cc
	set exe nlocale[pid].x

	set f [open $src "w"]
	puts $f "#include <locale>"
	puts $f "using namespace std;"
	puts $f "int main ()"
	puts $f "{"
	puts $f " try"
	puts $f " {"
	puts $f " locale(\"\");"
	puts $f " locale(\"de_DE\");"
	puts $f " locale(\"de_DE.ISO-8859-15@euro\");"
	puts $f " locale(\"de_DE@euro\");"
	puts $f " locale(\"en_HK\");"
	puts $f " locale(\"en_PH\");"
	puts $f " locale(\"en_US\");"
	puts $f " locale(\"en_US.ISO-8859-1\");"
	puts $f " locale(\"en_US.ISO-8859-15\");"
	puts $f " locale(\"en_US.UTF-8\");"
	puts $f " locale(\"es_ES\");"
	puts $f " locale(\"es_MX\");"
	puts $f " locale(\"fr_FR\");"
	puts $f " locale(\"fr_FR@euro\");"
	puts $f " locale(\"is_IS\");"
	puts $f " locale(\"is_IS.UTF-8\");"
	puts $f " locale(\"it_IT\");"
	puts $f " locale(\"ja_JP.eucjp\");"
	puts $f " locale(\"se_NO.UTF-8\");"
	puts $f " locale(\"ta_IN\");"
	puts $f " locale(\"zh_TW\");"
	puts $f " return 0;"
	puts $f " }"
	puts $f " catch(...)"
	puts $f " {"
	puts $f " return 1;"
	puts $f " }"
	puts $f "}"
	close $f

	set lines [v3_target_compile $src $exe executable ""]
	file delete $src

	if [string match "" $lines] {
	# No error message, compilation succeeded.
	set result [${tool}_load "./$exe" "" ""]
	set status [lindex $result 0]
	remote_file build delete $exe

	verbose "check_v3_target_namedlocale: status is <$status>" 2

	if { $status == "pass" } {
	set et_namedlocale_saved 1
	}
	} else {
	verbose "check_v3_target_namedlocale: compilation failed" 2
	}
	}
	return $et_namedlocale_saved
	}

	proc check_v3_target_debug_mode { } {
	global cxxflags
	global et_debug_mode

	global tool

	if { ![info exists et_debug_mode_target_name] } {
	set et_debug_mode_target_name ""
	}

	# If the target has changed since we set the cached value, clear it.
	set current_target [current_target_name]
	if { $current_target != $et_debug_mode_target_name } {
	verbose "check_v3_target_debug_mode: `$et_debug_mode_target_name'" 2
	set et_debug_mode_target_name $current_target
	if [info exists et_debug_mode] {
	verbose "check_v3_target_debug_mode: removing cached result" 2
	unset et_debug_mode
	}
	}

	if [info exists et_debug_mode] {
	verbose "check_v3_target_debug_mode: using cached result" 2
	} else {
	set et_debug_mode 0

	# Set up, compile, and execute a C++ test program that depends
	# on debug mode working.
	set src debug_mode[pid].cc
	set exe debug_mode[pid].exe

	set f [open $src "w"]
	puts $f "#include <string>"
	puts $f "using namespace std;"
	puts $f "int main()"
	puts $f "{ return 0; }"
	close $f

	set cxxflags_saved $cxxflags
	set cxxflags "$cxxflags -Werror -O0 -D_GLIBCXX_DEBUG"
	set lines [v3_target_compile $src $exe executable ""]
	set cxxflags $cxxflags_saved
	file delete $src

	if [string match "" $lines] {
	# No error message, compilation succeeded.
	set et_debug_mode 1
	}
	}
	verbose "check_v3_target_debug_mode: $et_debug_mode" 2
	return $et_debug_mode
	}