Merge branch 'sv/sasl-fix-get_status' into dev

* sv/sasl-fix-get_status:
  Prepare patch release
  fix sys:get_status backward compatibility for sasl release_handler_1

OTP-8619 sv/sasl-fix-get_status

In R13B04 sys:get_status was modified to invoke format_status/2 in the
callback module if the module exports that function. This resulted in a
change to the term returned from calling sys:get_status on the supervisor
module, since supervisor is a gen_server and gen_server exports
format_status. The sasl release_handler_1 module had a dependency on the
pre-R13B04 term returned by sys:get_status when invoked on a supervisor, so
the R13B04 change broke that dependency.

This problem has been fixed by change release_handler_1 to handle both the
pre-R13B04 and R13B04 terms that sys:get_status can return from a
supervisor.

1 files changed, 12 insertions, 6 deletions

diff --git a/lib/sasl/src/release_handler_1.erl b/lib/sasl/src/release_handler_1.erl
index e3e3caba99..9c0edf4e99 100644
--- a/lib/sasl/src/release_handler_1.erl
+++ b/lib/sasl/src/release_handler_1.erl
@@ -1,19 +1,19 @@
 %%
 %% %CopyrightBegin%
-%% 
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
-%% 
+%%
+%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
 %% compliance with the License. You should have received a copy of the
 %% Erlang Public License along with this software. If not, it can be
 %% retrieved online at http://www.erlang.org/.
-%% 
+%%
 %% Software distributed under the License is distributed on an "AS IS"
 %% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 %% the License for the specific language governing rights and limitations
 %% under the License.
-%% 
+%%
 %% %CopyrightEnd%
 %%
 -module(release_handler_1).
@@ -554,7 +554,13 @@ get_supervisor_module(SupPid) ->
 get_supervisor_module1(SupPid) ->
     {status, _Pid, {module, _Mod}, 
      [_PDict, _SysState, _Parent, _Dbg, Misc]} = sys:get_status(SupPid),
-    [_Name, State, _Type, _Time] = Misc,
+    %% supervisor Misc field changed at R13B04, handle old and new variants here
+    State = case Misc of
+                [_Name, State1, _Type, _Time] ->
+                    State1;
+                [_Header, _Data, {data, [{"State", State2}]}] ->
+                    State2
+            end,
     %% Cannot use #supervisor_state{module = Module} = State.
     {ok, element(#supervisor_state.module, State)}.