%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2003-2014. 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(crashdump_viewer_SUITE).
-include_lib("observer/src/crashdump_viewer.hrl").
%% Test functions
-export([all/0, suite/0,groups/0,init_per_group/2,end_per_group/2,
start_stop/1,load_file/1,not_found_items/1,
non_existing/1,not_a_crashdump/1,old_crashdump/1]).
-export([init_per_suite/1, end_per_suite/1]).
-export([init_per_testcase/2, end_per_testcase/2]).
-include_lib("common_test/include/ct.hrl").
-include("test_server_line.hrl").
-include_lib("kernel/include/file.hrl").
-define(failed_file,"failed-cases.txt").
-define(helper_mod,crashdump_helper).
init_per_testcase(start_stop, Config) ->
catch crashdump_viewer:stop(),
try
case os:type() of
{unix,darwin} ->
exit("Can not test on MacOSX");
{unix, _} ->
io:format("DISPLAY ~s~n", [os:getenv("DISPLAY")]),
case ct:get_config(xserver, none) of
none -> ignore;
Server -> os:putenv("DISPLAY", Server)
end;
_ -> ignore
end,
wx:new(),
wx:destroy(),
Config
catch
_:undef ->
{skipped, "No wx compiled for this platform"};
_:Reason ->
SkipReason = io_lib:format("Start wx failed: ~p", [Reason]),
{skipped, lists:flatten(SkipReason)}
end;
init_per_testcase(_Case, Config) ->
catch crashdump_viewer:stop(),
Config.
end_per_testcase(Case, Config) ->
case ?config(tc_status,Config) of
ok ->
ok;
_Fail ->
File = filename:join(?config(data_dir,Config),?failed_file),
{ok,Fd}=file:open(File,[append]),
file:write(Fd,io_lib:format("~w.~n",[Case])),
file:close(Fd)
end,
ok.
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[start_stop,
non_existing,
not_a_crashdump,
old_crashdump,
load_file,
not_found_items
].
groups() ->
[].
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
%% Create a lot of crashdumps which can be used in the testcases below
init_per_suite(Config) when is_list(Config) ->
delete_saved(Config),
DataDir = ?config(data_dir,Config),
Rels = [R || R <- [r16b,'17'], ?t:is_release_available(R)] ++ [current],
io:format("Creating crash dumps for the following releases: ~p", [Rels]),
AllDumps = create_dumps(DataDir,Rels),
[{dumps,AllDumps}|Config].
delete_saved(Config) ->
DataDir = ?config(data_dir,Config),
file:delete(filename:join(DataDir,?failed_file)),
SaveDir = filename:join(DataDir,"save"),
Dumps = filelib:wildcard(filename:join(SaveDir,"*")),
lists:foreach(fun(F) -> file:delete(F) end, Dumps),
file:del_dir(SaveDir),
ok.
start_stop(Config) when is_list(Config) ->
Dump = hd(?config(dumps,Config)),
timer:sleep(1000),
ProcsBefore = processes(),
NumProcsBefore = length(ProcsBefore),
ok = crashdump_viewer:start(Dump),
ExpectedRegistered = [crashdump_viewer_server,
cdv_wx,
cdv_proc_cb,
cdv_proc_cb__holder,
cdv_port_cb,
cdv_port_cb__holder,
cdv_ets_cb,
cdv_ets_cb__holder,
cdv_timer_cb,
cdv_timer_cb__holder,
cdv_fun_cb,
cdv_fun_cb__holder,
cdv_atom_cb,
cdv_atom_cb__holder,
cdv_dist_cb,
cdv_dist_cb__holder,
cdv_mod_cb,
cdv_mod_cb__holder],
Regs=[begin
P=whereis(N),
{P,N,erlang:monitor(process,P)}
end || N <- ExpectedRegistered],
ct:log("CDV procs: ~n~p~n",[Regs]),
[true=is_pid(P) || {P,_,_} <- Regs],
timer:sleep(5000), % give some time to live
ok = crashdump_viewer:stop(),
recv_downs(Regs),
timer:sleep(2000),
ProcsAfter = processes(),
NumProcsAfter = length(ProcsAfter),
if NumProcsAfter=/=NumProcsBefore ->
ct:log("Before but not after:~n~p~n",
[[{P,process_info(P)} || P <- ProcsBefore -- ProcsAfter]]),
ct:log("After but not before:~n~p~n",
[[{P,process_info(P)} || P <- ProcsAfter -- ProcsBefore]]),
ct:fail("leaking processes");
true ->
ok
end,
ok.
recv_downs([]) ->
ok;
recv_downs(Regs) ->
receive
{'DOWN',Ref,process,_Pid,_} ->
ct:log("Got 'DOWN' for process ~n~p~n",[_Pid]),
recv_downs(lists:keydelete(Ref,3,Regs))
after 30000 ->
ct:log("Timeout waiting for down:~n~p~n",
[[{Reg,process_info(P)} || {P,_,_}=Reg <- Regs]]),
ct:log("Message queue:~n~p~n",[process_info(self(),messages)])
end.
%% Try to load nonexisting file
non_existing(Config) when is_list(Config) ->
ExpectedReason = "non-existing-file is not an Erlang crash dump\n",
{error, ExpectedReason} = start_backend("non-existing-file"),
ok = crashdump_viewer:stop().
%% Try to load a crashdump of old (earlier than OTP R10B) format
old_crashdump(Config) when is_list(Config) ->
DataDir = ?config(data_dir,Config),
OldFile = filename:join(DataDir,"old_format.dump"),
ExpectedReason = "The crashdump " ++ OldFile ++
" is in the pre-R10B format, which is no longer supported.\n",
{error, ExpectedReason} = start_backend(OldFile),
ok = crashdump_viewer:stop().
%% Try to load a file which is not an erlang crashdump
not_a_crashdump(Config) when is_list(Config) ->
PrivDir = ?config(priv_dir,Config),
F1 = filename:join(PrivDir,"f1"),
F2 = filename:join(PrivDir,"f2"),
file:write_file(F1,"=unexpected_tag:xyz"),
file:write_file(F2,""),
ExpReason1 = F1 ++ " is not an Erlang crash dump\n",
ExpReason2 = F2 ++ " is not an Erlang crash dump\n",
{error,ExpReason1} = start_backend(F1),
{error,ExpReason2} = start_backend(F2),
ok = crashdump_viewer:stop().
%% Load files into the tool and view all pages
load_file(Config) when is_list(Config) ->
case ?t:is_debug() of
true ->
{skip,"Debug-compiled emulator -- far too slow"};
false ->
load_file_1(Config)
end.
load_file_1(Config) ->
DataDir = ?config(data_dir,Config),
crashdump_viewer:start_link(),
%% Read both created and predefined dumps
AllFiles = filelib:wildcard(filename:join(DataDir,"r*_dump.*")),
lists:foreach(
fun(File) ->
Content = browse_file(File),
special(File,Content)
end,
AllFiles),
ok = crashdump_viewer:stop().
%% Try to lookup nonexisting process, port and node
not_found_items(Config) ->
Dump = hd(?config(dumps,Config)),
ok = start_backend(Dump),
{ok,#general_info{},_} = crashdump_viewer:general_info(),
{error,not_found} = crashdump_viewer:proc_details("<1111.1111.1111>"),
{error,not_found} = crashdump_viewer:port("#Port<1111.1111>"),
{error,not_found} = crashdump_viewer:node_info("1111"),
ok = crashdump_viewer:stop().
%% Remove generated crashdumps
end_per_suite(Config) when is_list(Config) ->
Dumps = ?config(dumps,Config),
DataDir = ?config(data_dir,Config),
FailedFile = filename:join(DataDir,?failed_file),
case filelib:is_file(FailedFile) of
true ->
SaveDir = filename:join(DataDir,"save"),
file:make_dir(SaveDir),
file:copy(FailedFile,filename:join(SaveDir,?failed_file)),
lists:foreach(
fun(CD) ->
File = filename:basename(CD),
New = filename:join(SaveDir,File),
file:copy(CD,New)
end, Dumps);
false ->
ok
end,
file:delete(FailedFile),
lists:foreach(fun(CD) -> ok = file:delete(CD) end,Dumps),
lists:keydelete(dumps,1,Config).
%%%-----------------------------------------------------------------
%%% Internal
%%%-----------------------------------------------------------------
%%% Start the crashdump_viewer backend and load a dump
start_backend(File) ->
crashdump_viewer:start_link(),
register_progress_handler(),
ok = crashdump_viewer:read_file(File),
wait_for_progress_done().
%%%-----------------------------------------------------------------
%%% Simulate the progress handler in observer_lib
register_progress_handler() ->
register(cdv_progress_handler,self()).
wait_for_progress_done() ->
receive
{progress,{error,Reason}} ->
unregister(cdv_progress_handler),
{error,lists:flatten(Reason)};
{progress,{ok,done}} ->
unregister(cdv_progress_handler),
ok;
{progress,_} ->
wait_for_progress_done()
end.
%%%-----------------------------------------------------------------
%%% General check of what is displayed for a dump
browse_file(File) ->
io:format("~nBrowsing file: ~s",[File]),
ok = start_backend(File),
io:format(" backend started",[]),
{ok,_GI=#general_info{},_GenTW} = crashdump_viewer:general_info(),
{ok,Procs,_ProcsTW} = crashdump_viewer:processes(),
{ok,Ports,_PortsTW} = crashdump_viewer:ports(),
{ok,_Ets,_EtsTW} = crashdump_viewer:ets_tables(all),
{ok,_IntEts,_IntEtsTW} = crashdump_viewer:internal_ets_tables(),
{ok,_Timers,_TimersTW} = crashdump_viewer:timers(all),
{ok,_Funs,_FunsTW} = crashdump_viewer:funs(),
{ok,_Atoms,_AtomsTW} = crashdump_viewer:atoms(),
{ok,Nodes,_NodesTW} = crashdump_viewer:dist_info(),
{ok,Mods,_ModsTW} = crashdump_viewer:loaded_modules(),
{ok,_Mem,_MemTW} = crashdump_viewer:memory(),
{ok,_AllocAreas,_AreaTW} = crashdump_viewer:allocated_areas(),
{ok,_AllocINfo,_AllocInfoTW} = crashdump_viewer:allocator_info(),
{ok,_HashTabs,_HashTabsTW} = crashdump_viewer:hash_tables(),
{ok,_IndexTabs,_IndexTabsTW} = crashdump_viewer:index_tables(),
io:format(" info read",[]),
lookat_all_pids(Procs),
io:format(" pids ok",[]),
lookat_all_ports(Ports),
io:format(" ports ok",[]),
lookat_all_mods(Mods),
io:format(" mods ok",[]),
lookat_all_nodes(Nodes),
io:format(" nodes ok",[]),
Procs. % used as second arg to special/2
special(File,Procs) ->
case filename:extension(File) of
".full_dist" ->
%% I registered a process as aaaaaaaa in the full_dist dumps
%% to make sure it will be the first in the list when sorted
%% on names. There are some special data here, so I'll thoroughly
%% read the process details for this process. Other processes
%% are just briefly traversed.
[#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
Pid = pid_to_list(Pid0),
{ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
io:format(" process details ok",[]),
#proc{dict=Dict} = ProcDetails,
['#CDVBin',Offset,Size,Pos] = proplists:get_value(bin,Dict),
{ok,<<_:Size/binary>>} =
crashdump_viewer:expand_binary({Offset,Size,Pos}),
{ok,'#CDVTruncatedBinary'} =
crashdump_viewer:expand_binary({Offset,Size+1,Pos}),
['#CDVBin',SOffset,SSize,SPos] = proplists:get_value(sub_bin,Dict),
{ok,<<_:SSize/binary>>} =
crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
io:format(" expand binary ok",[]),
['#CDVPid',X1,Y1,Z1] = proplists:get_value(ext_pid,Dict),
ChannelStr1 = integer_to_list(X1),
ExtPid =
"<" ++ ChannelStr1 ++ "." ++
integer_to_list(Y1) ++ "." ++
integer_to_list(Z1) ++ ">",
{error,{other_node,ChannelStr1}} =
crashdump_viewer:proc_details(ExtPid),
io:format(" process details external ok",[]),
['#CDVPort',X2,Y2] = proplists:get_value(port,Dict),
ChannelStr2 = integer_to_list(X2),
Port = "#Port<"++ChannelStr2++"."++integer_to_list(Y2)++">",
{ok,_PortDetails=#port{},[]} = crashdump_viewer:port(Port),
io:format(" port details ok",[]),
['#CDVPort',X3,Y3] = proplists:get_value(ext_port,Dict),
ChannelStr3 = integer_to_list(X3),
ExtPort = "#Port<"++ChannelStr3++"."++integer_to_list(Y3)++">",
{error,{other_node,ChannelStr3}} = crashdump_viewer:port(ExtPort),
io:format(" port details external ok",[]),
{ok,[_Ets=#ets_table{}],[]} = crashdump_viewer:ets_tables(Pid),
io:format(" ets tables ok",[]),
{ok,[#timer{pid=Pid0,name=undefined},
#timer{pid=Pid0,name="aaaaaaaa"}],[]} =
crashdump_viewer:timers(Pid),
{ok,AllTimers,_TimersTW} = crashdump_viewer:timers(all),
#timer{name="noexistproc"} =
lists:keyfind(undefined,#timer.pid,AllTimers),
io:format(" timers ok:",[]),
{ok,Mod1=#loaded_mod{},[]} =
crashdump_viewer:loaded_mod_details(atom_to_list(?helper_mod)),
io:format(" modules ok",[]),
#loaded_mod{current_size=CS, old_size=OS,
old_attrib=A,old_comp_info=C}=Mod1,
true = is_integer(CS),
true = (CS==OS),
true = (A=/=undefined),
true = (C=/=undefined),
{ok,Mod2=#loaded_mod{},[]} =
crashdump_viewer:loaded_mod_details("application"),
io:format(" module details ok",[]),
#loaded_mod{old_size="No old code exists",
old_attrib=undefined,
old_comp_info=undefined}=Mod2,
ok;
%% ".strangemodname" ->
%% {ok,Mods,[]} = crashdump_viewer:loaded_modules(),
%% lookat_all_mods(Mods),
%% ok;
%% ".sort" ->
%% %% sort ports, atoms and modules ????
%% ok;
%% ".trunc" ->
%% %% ????
%% ok;
_ ->
ok
end,
ok.
lookat_all_pids([]) ->
ok;
lookat_all_pids([#proc{pid=Pid0}|Procs]) ->
Pid = pid_to_list(Pid0),
{ok,_ProcDetails=#proc{},_ProcTW} = crashdump_viewer:proc_details(Pid),
{ok,_Ets,_EtsTW} = crashdump_viewer:ets_tables(Pid),
{ok,_Timers,_TimersTW} = crashdump_viewer:timers(Pid),
lookat_all_pids(Procs).
lookat_all_ports([]) ->
ok;
lookat_all_ports([#port{id=Port0}|Procs]) ->
Port = cdv_port_cb:format(Port0),
{ok,_PortDetails=#port{},_PortTW} = crashdump_viewer:port(Port),
lookat_all_ports(Procs).
lookat_all_mods([]) ->
ok;
lookat_all_mods([#loaded_mod{mod=ModId}|Mods]) ->
ModName = cdv_mod_cb:format(ModId),
{ok,_Mod=#loaded_mod{},_ModTW} = crashdump_viewer:loaded_mod_details(ModName),
lookat_all_mods(Mods).
lookat_all_nodes([]) ->
ok;
lookat_all_nodes([#nod{channel=Channel0}|Nodes]) ->
Channel = integer_to_list(Channel0),
{ok,_Node=#nod{},_NodeTW} = crashdump_viewer:node_info(Channel),
lookat_all_nodes(Nodes).
%%%-----------------------------------------------------------------
%%%
create_dumps(DataDir,Rels) ->
create_dumps(DataDir,Rels,[]).
create_dumps(DataDir,[Rel|Rels],Acc) ->
Fun = fun() -> do_create_dumps(DataDir,Rel) end,
Pa = filename:dirname(code:which(?MODULE)),
{Dumps,DosDump} =
?t:run_on_shielded_node(Fun, compat_rel(Rel) ++ "-pa \"" ++ Pa ++ "\""),
create_dumps(DataDir,Rels,Dumps ++ Acc ++ DosDump);
create_dumps(_DataDir,[],Acc) ->
Acc.
do_create_dumps(DataDir,Rel) ->
CD1 = full_dist_dump(DataDir,Rel),
CD2 = dump_with_args(DataDir,Rel,"port_is_unix_fd","-oldshell"),
DosDump =
case os:type() of
{unix,sunos} -> dos_dump(DataDir,Rel,CD1);
_ -> []
end,
case Rel of
current ->
CD3 = dump_with_args(DataDir,Rel,"instr","+Mim true"),
CD4 = dump_with_strange_module_name(DataDir,Rel,"strangemodname"),
{[CD1,CD2,CD3,CD4], DosDump};
_ ->
{[CD1,CD2], DosDump}
end.
%% Create a dump which has three visible nodes, one hidden and one
%% not connected node, and with monitors and links between nodes.
%% One of the visible nodes is stopped and started again in order to
%% get multiple creations.
full_dist_dump(DataDir,Rel) ->
Opt = rel_opt(Rel),
Pz = "-pz \"" ++ filename:dirname(code:which(?MODULE)) ++ "\"",
PzOpt = [{args,Pz}],
{ok,N1} = ?t:start_node(n1,peer,Opt ++ PzOpt),
{ok,N2} = ?t:start_node(n2,peer,Opt ++ PzOpt),
{ok,N3} = ?t:start_node(n3,peer,Opt ++ PzOpt),
{ok,N4} = ?t:start_node(n4,peer,Opt ++ [{args,"-hidden " ++ Pz}]),
Creator = self(),
P1 = rpc:call(N1,?helper_mod,n1_proc,[N2,Creator]),
P2 = rpc:call(N2,?helper_mod,remote_proc,[P1,Creator]),
P3 = rpc:call(N3,?helper_mod,remote_proc,[P1,Creator]),
P4 = rpc:call(N4,?helper_mod,remote_proc,[P1,Creator]),
get_response(P2),
get_response(P3),
get_response(P4),
get_response(P1),
%% start, stop and start a node in order to get multiple 'creations'
{ok,N5} = ?t:start_node(n5,peer,Opt ++ PzOpt),
P51 = rpc:call(N5,?helper_mod,remote_proc,[P1,Creator]),
get_response(P51),
?t:stop_node(N5),
{ok,N5} = ?t:start_node(n5,peer,Opt ++ PzOpt),
P52 = rpc:call(N5,?helper_mod,remote_proc,[P1,Creator]),
get_response(P52),
{aaaaaaaa,N1} ! {hello,from,other,node}, % distribution message
?t:stop_node(N3),
DumpName = "full_dist",
CD = dump(N1,DataDir,Rel,DumpName),
?t:stop_node(N2),
?t:stop_node(N4),
?t:stop_node(N5),
CD.
get_response(P) ->
receive {P,done} -> ok
after 3000 -> ?t:fail({get_response_timeout,P,node(P)})
end.
dump_with_args(DataDir,Rel,DumpName,Args) ->
RelOpt = rel_opt(Rel),
Opt = RelOpt ++ [{args,Args}],
{ok,N1} = ?t:start_node(n1,peer,Opt),
CD = dump(N1,DataDir,Rel,DumpName),
?t:stop_node(n1),
CD.
%% This dump is added to test OTP-10090 - regarding URL encoding of
%% module names in the module detail link.
dump_with_strange_module_name(DataDir,Rel,DumpName) ->
Opt = rel_opt(Rel),
{ok,N1} = ?t:start_node(n1,peer,Opt),
Mod = '<mod ule#with?strange%name>',
File = atom_to_list(Mod) ++ ".erl",
Forms = [{attribute,1,file,{File,1}},
{attribute,1,module,Mod},
{eof,4}],
{ok,Mod,Bin} = rpc:call(N1,compile,forms,[Forms,[binary]]),
{module,Mod} = rpc:call(N1,code,load_binary,[Mod,File,Bin]),
CD = dump(N1,DataDir,Rel,DumpName),
?t:stop_node(n1),
CD.
dump(Node,DataDir,Rel,DumpName) ->
rpc:call(Node,erlang,halt,[DumpName]),
Crashdump0 = filename:join(filename:dirname(code:which(?t)),
"erl_crash_dump.n1"),
Crashdump1 = filename:join(DataDir, dump_prefix(Rel)++DumpName),
ok = rename(Crashdump0,Crashdump1),
Crashdump1.
rename(From,To) ->
ok = check_complete(From),
case file:rename(From,To) of
{error,exdev} ->
{ok,_} = file:copy(From,To),
ok = file:delete(From);
ok ->
ok
end.
check_complete(File) ->
check_complete1(File,10).
check_complete1(_File,0) ->
{error,enoent};
check_complete1(File,N) ->
case file:read_file_info(File) of
{error,enoent} ->
timer:sleep(500),
check_complete1(File,N-1);
{ok,#file_info{size=Size}} ->
check_complete2(File,Size)
end.
check_complete2(File,Size) ->
timer:sleep(500),
case file:read_file_info(File) of
{ok,#file_info{size=Size}} ->
ok;
{ok,#file_info{size=OtherSize}} ->
check_complete2(File,OtherSize)
end.
dos_dump(DataDir,Rel,Dump) ->
DosDumpName = filename:join(DataDir,dump_prefix(Rel)++"dos"),
Cmd = "unix2dos " ++ Dump ++ " > " ++ DosDumpName,
Port = open_port({spawn,Cmd},[exit_status]),
receive
{Port,{exit_status,0}} ->
[DosDumpName];
{Port,{exit_status,_Error}} ->
?t:comment("Couldn't run \'unix2dos\'"),
[]
end.
rel_opt(Rel) ->
case Rel of
r16b -> [{erl,[{release,"r16b_latest"}]}];
'17' -> [{erl,[{release,"17_latest"}]}];
current -> []
end.
dump_prefix(Rel) ->
case Rel of
r16b -> "r16b_dump.";
'17' -> "r17_dump.";
current -> "r18_dump."
end.
compat_rel(Rel) ->
case Rel of
r16b -> "+R16 ";
'17' -> "+R17 ";
current -> ""
end.
