[RFC] Architecture change events

[Keith Seitz <keiths@cygnus.com>]

Hi,

I would like some advice for how to complete this patch for submission
into the repository.

The patch simply adds an "architecture_changed" event and notification.
Problem: we need to pass a thread id around with this, but my
understanding of gdb in this area is a little deficient. It's been a long
time.

So, how do I go about figuring out what thread id to pass along with this?
(Is there even a way to do this yet?)

I dunno. Help!
Keith

Here's what I'm looking at:

ChangeLog
2001-08-10  Keith Seitz  <keiths@redhat.com>

	* gdb-events.sh: Add architecture_changed event.
	* gdbarch.sh: Include gdb-event.h.
	(gdbarch_update_p): Notify UIs when architecture changes.
	* gdb-events.h: Regenerated.
	* gdb-events.c: Regenerated.
	* gdbarch.c: Regenerated.

Almost complete patch (notice missing thread argument)
Index: gdb-events.sh
===================================================================
RCS file: /cvs/src/src/gdb/gdb-events.sh,v
retrieving revision 1.10
diff -u -p -r1.10 gdb-events.sh
--- gdb-events.sh	2001/08/10 16:05:30	1.10
+++ gdb-events.sh	2001/08/10 20:40:03
@@ -64,6 +64,7 @@ f:void:breakpoint_modify:int b:b
 f:void:tracepoint_create:int number:number
 f:void:tracepoint_delete:int number:number
 f:void:tracepoint_modify:int number:number
+f:void:architecture_changed:void
 #*:void:annotate_starting_hook:void
 #*:void:annotate_stopped_hook:void
 #*:void:annotate_signalled_hook:void
Index: gdbarch.sh
===================================================================
RCS file: /cvs/src/src/gdb/gdbarch.sh,v
retrieving revision 1.73
diff -u -p -r1.73 gdbarch.sh
--- gdbarch.sh	2001/07/10 21:24:48	1.73
+++ gdbarch.sh	2001/08/10 20:40:04
@@ -1129,6 +1129,7 @@ cat <<EOF
 #include "floatformat.h"

 #include "gdb_assert.h"
+#include "gdb-events.h"

 /* Static function declarations */

@@ -2066,6 +2067,7 @@ gdbarch_update_p (struct gdbarch_info in
 				new_gdbarch->bfd_arch_info->printable_name);
 	  current_gdbarch = new_gdbarch;
 	  swapin_gdbarch_swap (new_gdbarch);
+	  architecture_changed_event (/*thread??*/);
 	  return 1;
 	}
     }
@@ -2099,7 +2101,8 @@ gdbarch_update_p (struct gdbarch_info in
      registered an interest in this architecture.  CURRENT_GDBARCH
      must be updated before these modules are called. */
   init_gdbarch_data (new_gdbarch);
-
+  architecture_changed_event (/*thread??*/);
+
   if (gdbarch_debug)
     gdbarch_dump (current_gdbarch, gdb_stdlog);