re PR libstdc++/18185 ([3.4 only] Unhandled exceptions leak)

2004-11-01  Momchil Velikov  <velco@fadata.bg>

	PR libstdc++/18185
	* libsupc++/eh_globals.cc (get_globals_dtor): Delete unhandled
	exceptions.
	* testsuite/thread/18185.cc: New.

From-SVN: r89962

libstdc++-v3/ChangeLog

+2004-11-01  Momchil Velikov  <velco@fadata.bg>
+
+	PR libstdc++/18185
+	* libsupc++/eh_globals.cc (get_globals_dtor): Delete unhandled
+	exceptions.
+	* testsuite/thread/18185.cc: New.
+	
 2004-11-01  Chris Jefferson  <chris@bubblescope.net>
 
         PR libstdc++/18159

libstdc++-v3/libsupc++/eh_globals.cc

@@ -48,7 +48,17 @@ static void
 get_globals_dtor (void *ptr)
 {
   if (ptr)
-    std::free (ptr);
+    {
+      __cxa_exception *exn, *next;
+      exn = ((__cxa_eh_globals *) ptr)->caughtExceptions;
+      while (exn)
+	{
+	  next = exn->nextException;
+	  _Unwind_DeleteException (&exn->unwindHeader);
+	  exn = next;
+	}
+      std::free (ptr);
+    }
 }
 
 static void

libstdc++-v3/testsuite/thread/18185.cc

+//
+// Copyright (C) 2004 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* } }
+// { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* } }
+// { dg-options "-pthreads" { target *-*-solaris* } }
+
+#include <ext/new_allocator.h>
+#include <string>
+#include <pthread.h>
+
+static void *
+foo (void *p)
+{
+  typedef std::char_traits<char> traits_type;
+  typedef __gnu_cxx::new_allocator<char> allocator_type;
+  typedef std::basic_string<char, traits_type, allocator_type> string_type;
+  try
+    {
+      throw string_type("leak");
+    }
+  catch (const string_type&)
+    {
+      pthread_exit (0);
+    }
+}
+
+// c++/18185
+// This used to leak memory.
+int
+main ()
+{
+  pthread_t t;
+  int j = pthread_create (&t, 0, foo, 0);
+  int i = pthread_join (t, 0);
+  return 0;
+}