Remove the dlopen() pointer from struct filedef.

This pointer is almost never needed, and it increases the size of the filedef
struct for all files (of which there are a huge number for large builds).
Instead keep a bit field marking whether the file is a loaded object and if so
call a new function to unload it.  In load.c we keep a simple linked list of
loaded objects (of which there will be very few typically) and their dlopen()
pointers.

1 files changed, 3 insertions, 4 deletions

diff --git a/commands.c b/commands.c
index e8a9f1c..1627702 100644
--- a/commands.c
+++ b/commands.c
@@ -471,10 +471,9 @@ execute_file_commands (struct file *file)
   set_file_variables (file);
 
   /* If this is a loaded dynamic object, unload it before remaking.
-     Some systems don't allow to overwrite a loaded shared
-     library.  */
-  if (file->dlopen_ptr)
-    dlclose (file->dlopen_ptr);
+     Some systems don't support overwriting a loaded object.  */
+  if (file->loaded)
+    unload_file (file->name);
 
   /* Start the commands running.  */
   new_job (file);