move the entry point info into the per-bfd object

This moves the entry point information into the per-BFD object and
arranges not to recompute it when it has already been computed.

2014-01-15  Tom Tromey  <tromey@redhat.com>

	* symfile.c (init_entry_point_info): Use new "initialized" field.
	Update.
	* objfiles.h (struct entry_point) <initialized>: New field.
	(struct objfile_per_bfd_storage) <ei>: New field, moved from...
	(struct objfile) <ei>: ...here.  Remove.
	* objfiles.c (entry_point_address_query): Update.

1 files changed, 8 insertions, 5 deletions

diff --git a/gdb/objfiles.h b/gdb/objfiles.h
index 620d7e8..d448c9e 100644
--- a/gdb/objfiles.h
+++ b/gdb/objfiles.h
@@ -109,6 +109,9 @@ struct entry_info
 
     /* Set to 1 iff ENTRY_POINT contains a valid value.  */
     unsigned entry_point_p : 1;
+
+    /* Set to 1 iff this object was initialized.  */
+    unsigned initialized : 1;
   };
 
 /* Sections in an objfile.  The section offsets are stored in the
@@ -195,6 +198,11 @@ struct objfile_per_bfd_storage
      name, and the second is the demangled name or just a zero byte
      if the name doesn't demangle.  */
   struct htab *demangled_names_hash;
+
+  /* The per-objfile information about the entry point, the scope (file/func)
+     containing the entry point, and the scope of the user's main() func.  */
+
+  struct entry_info ei;
 };
 
 /* Master structure for keeping track of each file from which
@@ -318,11 +326,6 @@ struct objfile
 
     const struct sym_fns *sf;
 
-    /* The per-objfile information about the entry point, the scope (file/func)
-       containing the entry point, and the scope of the user's main() func.  */
-
-    struct entry_info ei;
-
     /* Per objfile data-pointers required by other GDB modules.  */
 
     REGISTRY_FIELDS;