2012-02-28 Richard Guenther <rguenther@suse.de>

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

diff --git a/gcc/langhooks.h b/gcc/langhooks.h
index 0c8a982..89e74f9 100644 (file)
--- a/gcc/langhooks.h
+++ b/gcc/langhooks.h
@@ -1,6 +1,6 @@
 /* The lang_hooks data structure.
-   Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
-   Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+   2011 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -132,6 +132,11 @@ struct lang_hooks_for_types
   /* Fill in information for the debugger about the bounds of TYPE.  */
   void (*get_subrange_bounds) (const_tree, tree *, tree *);
 
+  /* A type descriptive of TYPE's complex layout generated to help the
+     debugger to decode variable-length or self-referential constructs.
+     This is only used for the AT_GNAT_descriptive_type DWARF attribute.  */
+  tree (*descriptive_type) (const_tree);
+
   /* If we requested a pointer to a vector, build up the pointers that
      we stripped off while looking for the inner type.  Similarly for
      return values from functions.  The argument TYPE is the top of the
@@ -143,9 +148,10 @@ struct lang_hooks_for_types
 
 struct lang_hooks_for_decls
 {
-  /* Returns nonzero if we are in the global binding level.  Ada
-     returns -1 for an undocumented reason used in stor-layout.c.  */
-  int (*global_bindings_p) (void);
+  /* Return true if we are in the global binding level.  This hook is really
+     needed only if the language supports variable-sized types at the global
+     level, i.e. declared outside subprograms.  */
+  bool (*global_bindings_p) (void);
 
   /* Function to add a decl to the current scope level.  Takes one
      argument, a decl to add.  Returns that decl, or, if the same
@@ -267,8 +273,12 @@ struct lang_hooks
      of options.  */
   unsigned int (*option_lang_mask) (void);
 
+  /* Initialize variables in an options structure.  */
+  void (*init_options_struct) (struct gcc_options *opts);
+
   /* After the initialize_diagnostics hook is called, do any simple
-     initialization needed before any calls to handle_option.  */
+     initialization needed before any calls to handle_option, other
+     than that done by the init_options_struct hook.  */
   void (*init_options) (unsigned int decoded_options_count,
                        struct cl_decoded_option *decoded_options);
 
@@ -287,10 +297,12 @@ struct lang_hooks
      checking whether ARG is NULL, which indicates that no argument
      was in fact supplied.  For -f and -W switches, VALUE is 1 or 0
      for the positive and negative forms respectively.  HANDLERS should
-     be passed to any recursive handle_option calls.
+     be passed to any recursive handle_option calls.  LOC is the
+     location of the option.
 
      Return true if the switch is valid, false if invalid.  */
   bool (*handle_option) (size_t code, const char *arg, int value, int kind,
+                        location_t loc,
                         const struct cl_option_handlers *handlers);
 
   /* Called when all command line options have been parsed to allow
@@ -311,9 +323,8 @@ struct lang_hooks
   /* Called at the end of compilation, as a finalizer.  */
   void (*finish) (void);
 
-  /* Parses the entire file.  The argument is nonzero to cause bison
-     parsers to dump debugging information during parsing.  */
-  void (*parse_file) (int);
+  /* Parses the entire file.  */
+  void (*parse_file) (void);
 
   /* Determines if it's ok for a function to have no noreturn attribute.  */
   bool (*missing_noreturn_ok_p) (tree);