exception_support.h: New header file.

	* libsupc++/exception_support.h: New header file.
	* libsupc++/vec.cc: Include it.
	(__cxa_vec_new2): Recatch exceptions before rethrows.
	(__cxa_vec_new3): Likewise.
	(__cxa_vec_ctor): Likewise.
	(__cxa_vec_cctor): Likewise.
	(__cxa_vec_dtor): Likewise.
	(__cxa_vec_delete2): Likewise.
	(__cxa_vec_delete3): Likewise.

From-SVN: r37554

diff --git a/libstdc++-v3/libsupc++/exception_support.h b/libstdc++-v3/libsupc++/exception_support.h
new file mode 100644 (file)
index 0000000..2b08388
--- /dev/null
+++ b/libstdc++-v3/libsupc++/exception_support.h
@@ -0,0 +1,66 @@
+// Copyright (C) 2000
+// Free Software Foundation, Inc.
+// 
+// GNU CC 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.
+
+// GNU CC 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 GNU CC; see the file COPYING.  If not, write to
+// the Free Software Foundation, 59 Temple Place - Suite 330,
+// Boston, MA 02111-1307, USA. 
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include "gansidecl.h" /* Needed to support macros used in eh-common.h. */
+#include "eh-common.h"
+
+/* The type of a function called to clean up an exception object.
+   (These will be destructors.)  Under the old ABI, these take a
+   second argument (the `in-charge' argument), that indicates whether
+   or not do delete the object, and whether or not to destroy virtual
+   bases.  Under the new ABI, there is no second argument.  */
+#if !defined (__GXX_ABI_VERSION) || __GXX_ABI_VERSION < 100
+typedef void (*cleanup_fn)(void *, int);
+/* The `2' is the value for the in-charge parameter that indicates
+   that virtual bases should be destroyed.  */
+#define CALL_CLEANUP(FN, THIS) FN (THIS, 2)
+#else
+typedef void (*cleanup_fn)(void *);
+#define CALL_CLEANUP(FN, THIS) FN (THIS)
+#endif
+
+/* C++-specific state about the current exception.  This must match
+   init_exception_processing().
+
+   Note that handlers and caught are not redundant; when rethrown, an
+   exception can have multiple active handlers and still be considered
+   uncaught.  */
+
+struct cp_eh_info
+{
+  __eh_info eh_info;
+  void *value;
+  void *type;
+  cleanup_fn cleanup;
+  bool caught;
+  cp_eh_info *next;
+  long handlers;
+  void *original_value;
+};
+
+extern "C" cp_eh_info *__uncatch_exception (void);
+extern "C" void __recatch_exception (cp_eh_info *);