gas: set up notes obstack earlier

So that the notes obstack can be used for persistent storage in
parse_args.

	* as.c (parse_args): Use notes_alloc and notes_strdup.
	(free_notes): New function.
	(main): Init notes obstack, and arrange to be freed on exit.
	* read.c (read_begin): Don't init notes obstack.
	(read_end): Free cond_obstack.
	* subsegs.c (subsegs_end): Don't free cond_obstack or notes.

1 files changed, 1 insertions, 3 deletions

diff --git a/gas/read.c b/gas/read.c
index edf3f2a..6f3a51d 100644
--- a/gas/read.c
+++ b/gas/read.c
@@ -261,9 +261,6 @@ read_begin (void)
   pobegin ();
   obj_read_begin_hook ();
 
-  /* Something close -- but not too close -- to a multiple of 1024.
-     The debugging malloc I'm using has 24 bytes of overhead.  */
-  obstack_begin (&notes, chunksize);
   obstack_begin (&cond_obstack, chunksize);
 
 #ifndef tc_line_separator_chars
@@ -282,6 +279,7 @@ void
 read_end (void)
 {
   poend ();
+  _obstack_free (&cond_obstack, NULL);
 }
 
 #ifndef TC_ADDRESS_BYTES