X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fblock.h;h=1958bfdce4fd3c97e4a1b67c1c40926c7c3d673f;hb=93692b589dc7017d5a2fbdffdfad5f84f597d8f1;hp=d8ad3430dc79785eae6964e032f1cb31eced3dc3;hpb=b2e2f908b863c27abb00108a03ebe2598baec55c;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/block.h b/gdb/block.h
index d8ad3430dc..1958bfdce4 100644
--- a/gdb/block.h
+++ b/gdb/block.h
@@ -1,6 +1,6 @@
 /* Code dealing with blocks for GDB.
 
-   Copyright (C) 2003-2015 Free Software Foundation, Inc.
+   Copyright (C) 2003-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -82,21 +82,10 @@ struct block
 
   struct dictionary *dict;
 
-  /* Used for language-specific info.  */
+  /* Contains information about namespace-related info relevant to this block:
+     using directives and the current namespace scope.  */
 
-  union
-  {
-    struct
-    {
-      /* Contains information about namespace-related info relevant to
-	 this block: using directives and the current namespace
-	 scope.  */
-      
-      struct block_namespace_info *the_namespace;
-    }
-    cplus_specific;
-  }
-  language_specific;
+  struct block_namespace_info *namespace_info;
 };
 
 /* The global block is singled out so that we can provide a back-link
@@ -118,7 +107,7 @@ struct global_block
 #define BLOCK_FUNCTION(bl)	(bl)->function
 #define BLOCK_SUPERBLOCK(bl)	(bl)->superblock
 #define BLOCK_DICT(bl)		(bl)->dict
-#define BLOCK_NAMESPACE(bl)   (bl)->language_specific.cplus_specific.the_namespace
+#define BLOCK_NAMESPACE(bl)	(bl)->namespace_info
 
 struct blockvector
 {
@@ -190,6 +179,17 @@ extern struct block *allocate_global_block (struct obstack *obstack);
 extern void set_block_compunit_symtab (struct block *,
 				       struct compunit_symtab *);
 
+/* Return a property to evaluate the static link associated to BLOCK.
+
+   In the context of nested functions (available in Pascal, Ada and GNU C, for
+   instance), a static link (as in DWARF's DW_AT_static_link attribute) for a
+   function is a way to get the frame corresponding to the enclosing function.
+
+   Note that only objfile-owned and function-level blocks can have a static
+   link.  Return NULL if there is no such property.  */
+
+extern struct dynamic_prop *block_static_link (const struct block *block);
+
 /* A block iterator.  This structure should be treated as though it
    were opaque; it is only defined here because we want to support
    stack allocation of iterators.  */