* symtab.h (struct symtab) <includes, user>: New fields.

	* block.h (struct block_iterator) <d, idx, which>: New fields.
	* block.c (initialize_block_iterator, find_iterator_symtab)
	(block_iterator_step, block_iter_name_step)
	(block_iter_match_step): New functions.
	(block_iterator_first, block_iterator_next)
	(block_iter_name_first, block_iter_name_next)
	(block_iter_match_first, block_iter_match_next): Rewrite.
	(get_block_symtab): New function.

1 files changed, 17 insertions, 0 deletions

diff --git a/gdb/symtab.h b/gdb/symtab.h
index 61e7c0f..526fe5a 100644
--- a/gdb/symtab.h
+++ b/gdb/symtab.h
@@ -833,6 +833,23 @@ struct symtab
   /* struct call_site entries for this compilation unit or NULL.  */
 
   htab_t call_site_htab;
+
+  /* If non-NULL, then this points to a NULL-terminated vector of
+     included symbol tables.  When searching the static or global
+     block of this symbol table, the corresponding block of all
+     included symbol tables will also be searched.  Note that this
+     list must be flattened -- the symbol reader is responsible for
+     ensuring that this vector contains the transitive closure of all
+     included symbol tables.  */
+
+  struct symtab **includes;
+
+  /* If this is an included symbol table, this points to one includer
+     of the table.  This user is considered the canonical symbol table
+     containing this one.  An included symbol table may itself be
+     included by another.  */
+
+  struct symtab *user;
 };
 
 #define BLOCKVECTOR(symtab)	(symtab)->blockvector