re PR libstdc++/29095 (cxxabi.h __cxa_cdtor_type not declared when included from "C")

2006-10-09  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/29095
	* libsupc++/cxxabi.h (__cxa_cdtor_type): Explicit "C" linkage.
	* config/cpu/arm/cxxabi_tweaks.h: Same.
	* config/cpu/generic/cxxabi_tweaks.h: Same.
	* testsuite/abi: Add.
	* testsuite/abi/header_cxxabi.cc: New.
	* testsuite/demangle: Move...
	* testsuite/abi/demangle: ...here.
	* testsuite/libstdc++-dg/conformance.exp: Adjust testsuite file
	calculation.
	* scripts/create_testsuite_files: Same.
	* testsuite/lib/libstdc++.exp (v3_target_compile_as_c): New.
	(libstdc++-dg-test): Use it.

From-SVN: r117589

libstdc++-v3/ChangeLog

+2006-10-09  Benjamin Kosnik  <bkoz@redhat.com>
+
+	PR libstdc++/29095
+	* libsupc++/cxxabi.h (__cxa_cdtor_type): Explicit "C" linkage.
+	* config/cpu/arm/cxxabi_tweaks.h: Same.
+	* config/cpu/generic/cxxabi_tweaks.h: Same.
+	* testsuite/abi: Add.
+	* testsuite/abi/header_cxxabi.cc: New.
+	* testsuite/demangle: Move...
+	* testsuite/abi/demangle: ...here.
+	* testsuite/libstdc++-dg/conformance.exp: Adjust testsuite file
+	calculation.
+	* scripts/create_testsuite_files: Same.
+	* testsuite/lib/libstdc++.exp (v3_target_compile_as_c): New.
+	(libstdc++-dg-test): Use it.
+	
 2006-10-09  Paolo Carlini  <pcarlini@suse.de>
 
 	PR libstdc++/28277 (partial: __add_grouping)

libstdc++-v3/config/cpu/arm/cxxabi_tweaks.h

 // Control various target specific ABI tweaks.  ARM version.
 
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2006 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -33,6 +33,8 @@
 #ifdef __cplusplus
 namespace __cxxabiv1
 {
+  extern "C" 
+  {
 #endif
 
 #ifdef __ARM_EABI__
@@ -67,7 +69,8 @@ namespace __cxxabiv1
 #endif //!__ARM_EABI__
 
 #ifdef __cplusplus
+  }
 } // namespace __cxxabiv1
 #endif
 
-#endif // __cxxabiv1
+#endif 

libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h

 // Control various target specific ABI tweaks.  Generic version.
 
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2006 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -33,6 +33,8 @@
 #ifdef __cplusplus
 namespace __cxxabiv1
 {
+  extern "C" 
+  {
 #endif
 
   // The generic ABI uses the first byte of a 64-bit guard variable.
@@ -47,7 +49,8 @@ namespace __cxxabiv1
   typedef void __cxa_cdtor_return_type;
 
 #ifdef __cplusplus
+  }
 } // namespace __cxxabiv1
 #endif
 
-#endif // __cxxabiv1
+#endif 

libstdc++-v3/libsupc++/cxxabi.h

 // new abi support -*- C++ -*-
   
-// Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
+// Copyright (C) 2000, 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
@@ -54,12 +54,12 @@
 #ifdef __cplusplus
 namespace __cxxabiv1
 {  
-  typedef __cxa_cdtor_return_type (*__cxa_cdtor_type)(void *);
-
   extern "C" 
   {
 #endif
 
+  typedef __cxa_cdtor_return_type (*__cxa_cdtor_type)(void *);
+
   // Allocate array.
   void* 
   __cxa_vec_new(size_t __element_count, size_t __element_size, 

libstdc++-v3/scripts/create_testsuite_files

@@ -32,7 +32,7 @@ cd $srcdir
 # This is the ugly version of "everything but the current directory".  It's
 # what has to happen when find(1) doesn't support -mindepth, or -xtype.
 dlist=`echo [0-9][0-9]*`
-dlist="$dlist backward demangle ext performance thread tr1"
+dlist="$dlist abi backward ext performance thread tr1"
 find $dlist "(" -type f -o -type l ")" -name "*.cc" -print > $tmp.01
 find $dlist "(" -type f -o -type l ")" -name "*.c" -print > $tmp.02
 cat  $tmp.01 $tmp.02 | sort > $tmp.1

libstdc++-v3/testsuite/abi/header_cxxabi.c

+// { dg-do compile }
+// { dg-options "-x c" }
+// Copyright (C) 2006 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library 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, or (at your option)
+// any later version.
+
+// This library 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 library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Must be compilable as "C"
+#include <cxxabi.h>

libstdc++-v3/testsuite/lib/libstdc++.exp

@@ -272,6 +272,7 @@ proc libstdc++-dg-test { prog do_what extra_tool_flags } {
         }
     }
 
+    set select_compile "v3_target_compile"
     set options ""
     if { $extra_tool_flags != "" } {
 	verbose -log "extra_tool_flags are:"
@@ -279,16 +280,17 @@ proc libstdc++-dg-test { prog do_what extra_tool_flags } {
 	if { [string first "-x c" $extra_tool_flags ] != -1 } {
 	    # Short-circut a bunch of complicated goo here for the
 	    # special case of compiling a test file as a "C" file, not
-	    # as C++: just use target_compile, instead of the usual
-	    # gimmicks.
+	    # 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.
 	    verbose -log "compiling and executing as C, not C++"
-            set compile_type "executable"
-            set output_file "./[file rootname [file tail $prog]].exe"
-            remote_file build delete $output_file;
-	    lappend options "additional_flags=$extra_tool_flags"
-	    set comp_output [target_compile "$prog" "$output_file" "$compile_type" $options];
-	    set comp_output [ prune_g++_output $comp_output ];
-	    return [list $comp_output $output_file]
+
+	    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"
 	}
@@ -296,7 +298,7 @@ proc libstdc++-dg-test { prog do_what 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 [v3_target_compile "$prog" "$output_file" "$compile_type" $options];
+    set comp_output [$select_compile "$prog" "$output_file" "$compile_type" $options];
     set comp_output [ prune_g++_output $comp_output ];
 
     return [list $comp_output $output_file]
@@ -323,7 +325,6 @@ proc v3_target_compile { source dest type options } {
     global cxxflags
     global cxxldflags
     global includes
-    global blddir
     global v3-test_objs
 
     if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {
@@ -340,8 +341,9 @@ proc v3_target_compile { source dest type options } {
     # Flag setting based on type argument.
     if { $type == "executable" } {
 	# Link the support objects into executables.
-	set cxx_final [concat $cxx_final ${v3-test_objs}]
         set cxx_final [concat $cxx_final $cxxldflags]
+	# lappend options "additional_flags=./libtestc++.a"
+	set cxx_final [concat $cxx_final ${v3-test_objs}]
     } else {
 	if { $type == "sharedlib" } {
 	    # Don't link in anything.
@@ -356,6 +358,31 @@ proc v3_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
+
+    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_final [board_info $tname compiler]
+    set cxxlibglossflags  [libgloss_link_flags]
+    set cc_final [concat $cc_final $cxxlibglossflags]
+    set cc_final [concat $cc_final $includes]
+    regsub -all ".nostdinc.." $cc_final "" cc_final
+
+    lappend options "compiler=$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, v3-test_objs, and v3-symver
 # appropriately.

libstdc++-v3/testsuite/libstdc++-dg/conformance.exp

@@ -53,12 +53,12 @@ if {[info exists tests_file] && [file exists $tests_file]} {
 } else {
     # Find directories that might have tests.
     set subdirs [glob "$srcdir/\[0-9\]\[0-9\]*"]
+    lappend subdirs "$srcdir/abi"
     lappend subdirs "$srcdir/backward"
-    lappend subdirs "$srcdir/demangle"
     lappend subdirs "$srcdir/ext"
     lappend subdirs "$srcdir/performance"
-    lappend subdirs "$srcdir/tr1"
     lappend subdirs "$srcdir/thread"
+    lappend subdirs "$srcdir/tr1"
     verbose "subdirs are $subdirs"
 
     # Find all the tests.