gdb/doc:

	* gdb.texinfo (GDB/MI Async Records): Document new MI
	notifications '=tsv-created' and '=tsv-deleted'.
	* observer.texi (GDB Observers): New observer tsv_created and
	tsv_deleted.

gdb:

	* mi/mi-interp.c: Declare mi_tsv_created and mi_tsv_deleted.
	(mi_interpreter_init): Call observer_attach_tsv_created and
	observer_attach_tsv_deleted.
	(mi_tsv_created, mi_tsv_deleted): New.
	* tracepoint.c (delete_trace_state_variable): Call
	observer_notify_tsv_deleted.
	(trace_variable_command): Call observer_notify_tsv_created.
	(delete_trace_variable_command): Call
	observer_notify_tsv_deleted.
	(create_tsv_from_upload): Call observer_notify_tsv_created.
	* NEWS: Mention it.

gdb/testsuite:

	gdb.trace/mi-tsv-changed.exp: New.

2 files changed, 175 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index cba29fb..21e048a 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2012-09-18  Yao Qi  <yao@codesourcery.com>
 
+	* gdb.trace/mi-tsv-changed.exp: New.
+
+2012-09-18  Yao Qi  <yao@codesourcery.com>
+
 	* gdb.trace/mi-traceframe-changed.exp: New.
 
 2012-09-17  Yao Qi  <yao@codesourcery.com>
diff --git a/gdb/testsuite/gdb.trace/mi-tsv-changed.exp b/gdb/testsuite/gdb.trace/mi-tsv-changed.exp
new file mode 100644
index 0000000..411efad
--- /dev/null
+++ b/gdb/testsuite/gdb.trace/mi-tsv-changed.exp
@@ -0,0 +1,171 @@
+# Copyright 2012 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+load_lib trace-support.exp
+load_lib mi-support.exp
+
+standard_testfile actions.c
+if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
+	  executable {debug nowarnings}] != "" } {
+    untested mi-tsv-changed.exp
+    return -1
+}
+
+# Test notifications on creating and deleting TSV.
+
+proc test_create_delete_tsv { } {with_test_prefix "create delete" {
+    global binfile
+    global decimal
+
+    if [mi_gdb_start] {
+	return
+    }
+    mi_gdb_load ${binfile}
+
+    mi_gdb_test "tvariable \$tvar1" \
+	".*=tsv-created,name=\"tvar1\",value=\"0\"\\\\n.*\\^done" \
+	"tvariable \$tvar1"
+    mi_gdb_test "tvariable \$tvar2 = 45" \
+	".*=tsv-created,name=\"tvar2\",value=\"45\"\\\\n.*\\^done" \
+	"tvariable \$tvar2"
+
+    mi_gdb_test "delete tvariable \$tvar2" \
+	".*=tsv-deleted,name=\"tvar2\"\\\\n.*\\^done" \
+	"delete tvariable \$tvar2"
+
+    mi_gdb_test "delete tvariable" \
+	".*=tsv-deleted\\\\n.*\\^done" \
+	"delete all tvariables"
+
+}}
+
+
+# Test when GDB connects to a disconnected stub, existing TSVs in
+# remote stub can be uploaded to GDB, and GDB emits MI notification
+# for new uploaded TSVs.
+
+proc test_upload_tsv { } { with_test_prefix "upload" {
+
+    global gdbserver_reconnect_p
+    global gdb_prompt
+    global testfile
+    global decimal
+
+    set gdbserver_reconnect_p 1
+    if { [info proc gdb_reconnect] == "" } {
+	return 0
+    }
+
+    clean_restart $testfile
+    if ![runto_main] then {
+	fail "Can't run to main"
+	return 0
+    }
+
+    gdb_test "tvariable \$tvar1" \
+	"Trace state variable \\\$tvar1 created, with initial value 0." \
+	"Create a trace state variable"
+
+    gdb_test "tvariable \$tvar2 = 45" \
+	"Trace state variable \\\$tvar2 created, with initial value 45." \
+	"Create a trace state variable with initial value"
+    # Define a tracepoint otherwise tracing cannot be started.
+    gdb_test "trace main" "Tracepoint $decimal at .*"
+    gdb_test_no_output "tstart" "start trace experiment"
+
+    set test "disconnect"
+    gdb_test_multiple "disconnect" $test {
+	-re "Trace is running but will stop on detach; detach anyway\\? \\(y or n\\) $" {
+	    pass $test
+
+	    set test "disconnected"
+	    gdb_test_multiple "y" $test {
+		-re "$gdb_prompt $" {
+		    pass "$test"
+		}
+	    }
+	}
+    }
+
+    gdb_exit
+
+    if [mi_gdb_start] {
+	return
+    }
+
+    global srcdir
+    global subdir
+    global binfile
+
+    mi_gdb_reinitialize_dir $srcdir/$subdir
+    mi_gdb_load ${binfile}
+
+    global gdbserver_protocol
+    global gdbserver_gdbport
+
+    send_gdb "47-target-select $gdbserver_protocol $gdbserver_gdbport\n"
+
+    global mi_gdb_prompt
+    set tsv1_created 0
+    set tsv2_created 0
+    gdb_expect {
+	-re "=tsv-created,name=\"tvar1\",value=\"0\"" {
+	    set tsv1_created 1
+	    exp_continue
+	}
+	-re "=tsv-created,name=\"tvar2\",value=\"45\"" {
+	    set tsv2_created 1
+	    exp_continue
+	}
+	-re ".*${mi_gdb_prompt}" {
+
+	}
+    }
+
+    if $tsv1_created {
+	pass "tsv1 created"
+    } else {
+	fail "tsv1 created"
+    }
+    if $tsv2_created {
+	pass "tsv2 created"
+    } else {
+	fail "tsv2 created"
+    }
+
+    set gdbserver_reconnect_p 0
+}}
+
+ test_create_delete_tsv
+
+# Test target supports tracepoints or not.
+
+clean_restart $testfile
+
+if ![runto_main] {
+    fail "Can't run to main to check for trace support"
+    return -1
+}
+
+if ![gdb_target_supports_trace] {
+    unsupported "Current target does not support trace"
+    return -1;
+}
+
+gdb_exit
+
+test_upload_tsv
+
+return 0