Daily bump.

[pf3gnuchains/gcc-fork.git] / gcc / except.h

diff --git a/gcc/except.h b/gcc/except.h
index ef511c9..5d461d7 100644 (file)
--- a/gcc/except.h
+++ b/gcc/except.h
@@ -1,6 +1,6 @@
 /* Exception Handling interface routines.
    Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-   2007, 2008, 2009  Free Software Foundation, Inc.
+   2007, 2008, 2009, 2010  Free Software Foundation, Inc.
    Contributed by Mike Stump <mrs@cygnus.com>.
 
 This file is part of GCC.
@@ -19,6 +19,13 @@ You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
+/* No include guards here, but define an include file marker anyway, so
+   that the compiler can keep track of where this file is included.  This
+   is e.g. used to avoid including this file in front-end specific files.  */
+#ifndef GCC_EXCEPT_H
+#  define GCC_EXCEPT_H
+#endif
+
 #include "hashtab.h"
 #include "vecprim.h"
 #include "vecir.h"
@@ -222,14 +229,10 @@ struct GTY(()) eh_status
 };
 
 
-/* Test: is exception handling turned on?  */
-extern int doing_eh (int);
-
 /* Invokes CALLBACK for every exception handler label.  Only used by old
    loop hackery; should not be used by new code.  */
 extern void for_each_eh_label (void (*) (rtx));
 
-extern void init_eh (void);
 extern void init_eh_for_function (void);
 
 extern void remove_eh_landing_pad (eh_landing_pad);
@@ -250,6 +253,7 @@ extern rtx expand_builtin_dwarf_sp_column (void);
 extern void expand_builtin_eh_return (tree, tree);
 extern void expand_eh_return (void);
 extern rtx expand_builtin_extend_pointer (tree);
+extern void expand_dw2_landing_pad_for_region (eh_region);
 
 typedef tree (*duplicate_eh_regions_map) (tree, void *);
 extern struct pointer_map_t *duplicate_eh_regions
@@ -287,58 +291,6 @@ extern void assign_filter_values (void);
 extern eh_region get_eh_region_from_rtx (const_rtx);
 extern eh_landing_pad get_eh_landing_pad_from_rtx (const_rtx);
 
-/* If non-NULL, this is a function that returns a function decl to be
-   executed if an unhandled exception is propagated out of a cleanup
-   region.  For example, in C++, an exception thrown by a destructor
-   during stack unwinding is required to result in a call to
-   `std::terminate', so the C++ version of this function returns a
-   FUNCTION_DECL for `std::terminate'.  */
-extern tree (*lang_protect_cleanup_actions) (void);
-
-
-/* Just because the user configured --with-sjlj-exceptions=no doesn't
-   mean that we can use call frame exceptions.  Detect that the target
-   has appropriate support.  */
-
-#ifndef MUST_USE_SJLJ_EXCEPTIONS
-# if defined (EH_RETURN_DATA_REGNO)                    \
-       && (defined (TARGET_UNWIND_INFO)                        \
-          || (DWARF2_UNWIND_INFO                       \
-              && (defined (EH_RETURN_HANDLER_RTX)      \
-                  || defined (HAVE_eh_return))))
-#  define MUST_USE_SJLJ_EXCEPTIONS     0
-# else
-#  define MUST_USE_SJLJ_EXCEPTIONS     1
-# endif
-#endif
-
-#ifdef CONFIG_SJLJ_EXCEPTIONS
-# if CONFIG_SJLJ_EXCEPTIONS == 1
-#  define USING_SJLJ_EXCEPTIONS                1
-# endif
-# if CONFIG_SJLJ_EXCEPTIONS == 0
-#  define USING_SJLJ_EXCEPTIONS                0
-#  if !defined(EH_RETURN_DATA_REGNO)
-    #error "EH_RETURN_DATA_REGNO required"
-#  endif
-#  if ! (defined(TARGET_UNWIND_INFO) || DWARF2_UNWIND_INFO)
-    #error "{DWARF2,TARGET}_UNWIND_INFO required"
-#  endif
-#  if !defined(TARGET_UNWIND_INFO) \
-       && !(defined(EH_RETURN_HANDLER_RTX) || defined(HAVE_eh_return))
-    #error "EH_RETURN_HANDLER_RTX or eh_return required"
-#  endif
-/* Usually the above error checks will have already triggered an
-   error, but backends may set MUST_USE_SJLJ_EXCEPTIONS for their own
-   reasons.  */
-#  if MUST_USE_SJLJ_EXCEPTIONS
-    #error "Must use SJLJ exceptions but configured not to"
-#  endif
-# endif
-#else
-# define USING_SJLJ_EXCEPTIONS         MUST_USE_SJLJ_EXCEPTIONS
-#endif
-
 struct GTY(()) throw_stmt_node {
   gimple stmt;
   int lp_nr;