gdb/doc:

2013-02-06  Yao Qi  <yao@codesourcery.com>

	* gdb.texinfo (GDB/MI Async Records): Document new MI
	notification "=tsv-modified".  Update the document of MI
	notification "=tsv-created".
	* observer.texi (GDB Observers): New observer tsv_modified.
	Update observer tsv_created and tsv_deleted.

gdb:

2013-02-06  Yao Qi  <yao@codesourcery.com>

	* mi/mi-interp.c: Include "tracepoint.h".
	(mi_tsv_modified): Declare.
	(mi_tsv_created, mi_tsv_deleted): Update declaration.
	(mi_interpreter_init): Call observer_attach_tsv_modified.
	(mi_tsv_modified): New.
	(mi_tsv_created, mi_tsv_deleted): Update.
	* tracepoint.c (trace_variable_command): Call
	observer_notify_tsv_modified if the initial value of tsv is
	changed.
	(delete_trace_state_variable): Call
	observer_notify_tsv_deleted earlier.
	(trace_variable_command): Caller update.
	(create_tsv_from_upload): Likewise.
	* observer.sh: Declare "struct trace_state_variable".

	* NEWS: Mention the new MI notification "=tsv-modified".

gdb/testsuite:

2013-02-06  Yao Qi  <yao@codesourcery.com>

	* gdb.trace/mi-tsv-changed.exp (test_create_delete_tsv): Rename
	to ...
	(test_create_delete_modify_tsv): ... here.  New test on modifying
	the initial value of a tsv.

1 files changed, 9 insertions, 5 deletions

diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index bc30150922a..b45863e3e67 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -351,11 +351,11 @@ delete_trace_state_variable (const char *name)
   for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
     if (strcmp (name, tsv->name) == 0)
       {
+	observer_notify_tsv_deleted (tsv);
+
 	xfree ((void *)tsv->name);
 	VEC_unordered_remove (tsv_s, tvariables, ix);
 
-	observer_notify_tsv_deleted (name);
-
 	return;
       }
 
@@ -408,7 +408,11 @@ trace_variable_command (char *args, int from_tty)
   tsv = find_trace_state_variable (internalvar_name (intvar));
   if (tsv)
     {
-      tsv->initial_value = initval;
+      if (tsv->initial_value != initval)
+	{
+	  tsv->initial_value = initval;
+	  observer_notify_tsv_modified (tsv);
+	}
       printf_filtered (_("Trace state variable $%s "
 			 "now has initial value %s.\n"),
 		       tsv->name, plongest (tsv->initial_value));
@@ -420,7 +424,7 @@ trace_variable_command (char *args, int from_tty)
   tsv = create_trace_state_variable (internalvar_name (intvar));
   tsv->initial_value = initval;
 
-  observer_notify_tsv_created (tsv->name, initval);
+  observer_notify_tsv_created (tsv);
 
   printf_filtered (_("Trace state variable $%s "
 		     "created, with initial value %s.\n"),
@@ -3587,7 +3591,7 @@ create_tsv_from_upload (struct uploaded_tsv *utsv)
   tsv->initial_value = utsv->initial_value;
   tsv->builtin = utsv->builtin;
 
-  observer_notify_tsv_created (tsv->name, tsv->initial_value);
+  observer_notify_tsv_created (tsv);
 
   do_cleanups (old_chain);