aboutsummaryrefslogtreecommitdiffstats
path: root/lib/runtime_tools
diff options
context:
space:
mode:
Diffstat (limited to 'lib/runtime_tools')
-rw-r--r--lib/runtime_tools/src/dbg.erl29
-rw-r--r--lib/runtime_tools/test/dbg_SUITE.erl222
2 files changed, 242 insertions, 9 deletions
diff --git a/lib/runtime_tools/src/dbg.erl b/lib/runtime_tools/src/dbg.erl
index d5ff874206..1620f52789 100644
--- a/lib/runtime_tools/src/dbg.erl
+++ b/lib/runtime_tools/src/dbg.erl
@@ -20,6 +20,7 @@
-module(dbg).
-export([p/1,p/2,c/3,c/4,i/0,start/0,stop/0,stop_clear/0,tracer/0,
tracer/2, tracer/3, get_tracer/0, get_tracer/1, tp/2, tp/3, tp/4,
+ tpe/2, ctpe/1,
ctp/0, ctp/1, ctp/2, ctp/3, tpl/2, tpl/3, tpl/4, ctpl/0, ctpl/1,
ctpl/2, ctpl/3, ctpg/0, ctpg/1, ctpg/2, ctpg/3, ltp/0, wtp/1, rtp/1,
dtp/0, dtp/1, n/1, cn/1, ln/0, h/0, h/1]).
@@ -128,7 +129,12 @@ tpl(Module, Pattern) when is_atom(Module) ->
do_tp({Module, '_', '_'}, Pattern, [local]);
tpl({_Module, _Function, _Arity} = X, Pattern) ->
do_tp(X,Pattern,[local]).
-do_tp({_Module, _Function, _Arity} = X, Pattern, Flags)
+
+tpe(Event, Pattern) when Event =:= send;
+ Event =:= 'receive' ->
+ do_tp(Event, Pattern, []).
+
+do_tp(X, Pattern, Flags)
when is_integer(Pattern);
is_atom(Pattern) ->
case ets:lookup(get_pattern_table(), Pattern) of
@@ -137,17 +143,16 @@ do_tp({_Module, _Function, _Arity} = X, Pattern, Flags)
_ ->
{error, unknown_pattern}
end;
-do_tp({Module, _Function, _Arity} = X, Pattern, Flags) when is_list(Pattern) ->
+do_tp(X, Pattern, Flags) when is_list(Pattern) ->
Nodes = req(get_nodes),
- case Module of
- '_' ->
- ok;
- M when is_atom(M) ->
+ case X of
+ {M,_,_} when is_atom(M) ->
%% Try to load M on all nodes
lists:foreach(fun(Node) ->
rpc:call(Node, M, module_info, [])
end,
- Nodes)
+ Nodes);
+ _ -> ok
end,
case lint_tp(Pattern) of
{ok,_} ->
@@ -163,9 +168,9 @@ do_tp({Module, _Function, _Arity} = X, Pattern, Flags) when is_list(Pattern) ->
end.
%% All nodes are handled the same way - also the local node if it is traced
-do_tp_on_nodes(Nodes, MFA, P, Flags) ->
+do_tp_on_nodes(Nodes, X, P, Flags) ->
lists:map(fun(Node) ->
- case rpc:call(Node,erlang,trace_pattern,[MFA,P, Flags]) of
+ case rpc:call(Node,erlang,trace_pattern,[X,P, Flags]) of
N when is_integer(N) ->
{matched, Node, N};
Else ->
@@ -210,6 +215,7 @@ ctpg(Module) when is_atom(Module) ->
do_ctp({Module, '_', '_'}, [global]);
ctpg({_Module, _Function, _Arity} = X) ->
do_ctp(X,[global]).
+
do_ctp({Module, Function, Arity},[]) ->
do_ctp({Module, Function, Arity},[global]),
do_ctp({Module, Function, Arity},[local]);
@@ -217,6 +223,11 @@ do_ctp({_Module, _Function, _Arity}=MFA,Flags) ->
Nodes = req(get_nodes),
{ok,do_tp_on_nodes(Nodes,MFA,false,Flags)}.
+ctpe(Event) when Event =:= send;
+ Event =:= 'receive' ->
+ Nodes = req(get_nodes),
+ {ok,do_tp_on_nodes(Nodes,Event,true,[])}.
+
%%
%% ltp() -> ok
%% List saved and built-in trace patterns.
diff --git a/lib/runtime_tools/test/dbg_SUITE.erl b/lib/runtime_tools/test/dbg_SUITE.erl
index 0777503ef7..5a3c885571 100644
--- a/lib/runtime_tools/test/dbg_SUITE.erl
+++ b/lib/runtime_tools/test/dbg_SUITE.erl
@@ -22,6 +22,7 @@
%% Test functions
-export([all/0, suite/0,
big/1, tiny/1, simple/1, message/1, distributed/1, port/1,
+ send/1, recv/1,
ip_port/1, file_port/1, file_port2/1, file_port_schedfix/1,
ip_port_busy/1, wrap_port/1, wrap_port_time/1,
with_seq_trace/1, dead_suspend/1, local_trace/1,
@@ -39,6 +40,7 @@ suite() ->
all() ->
[big, tiny, simple, message, distributed, port, ip_port,
+ send, recv,
file_port, file_port2, file_port_schedfix, ip_port_busy,
wrap_port, wrap_port_time, with_seq_trace, dead_suspend,
local_trace, saved_patterns, tracer_exit_on_stop,
@@ -151,6 +153,226 @@ message(Config) when is_list(Config) ->
{trace,S,call,{dbg,ln,[]},S}] = flush(),
ok.
+send(Config) when is_list(Config) ->
+ {ok, _} = start(),
+ Node = start_slave(),
+ rpc:call(Node, code, add_patha,
+ [filename:join(proplists:get_value(data_dir, Config), "..")]),
+ try
+ Echo = fun F() ->
+ receive {From, M} ->
+ From ! M,
+ F()
+ end
+ end,
+ Rcvr = spawn_link(Echo),
+ RemoteRcvr = spawn_link(Node, Echo),
+
+ {ok, [{matched, _, 1}]} = dbg:p(Rcvr, send),
+
+ send_test(Rcvr, make_ref(), true),
+
+ %% Test that the test case process is the receiving process
+ send_test(Rcvr, [{[self(),'_'],[],[]}]),
+
+ %% Test that self() is not the receiving process
+ {ok, [{matched, _node, 1}, {saved, 2}]} =
+ dbg:tpe(send, [{['$1','_'],[{'==','$1',{self}}],[]}]),
+ send_test(Rcvr, make_ref(), false),
+
+ %% Test that self() is the sending process
+ send_test(Rcvr, [{['_','_'],[{'==',Rcvr,{self}}],[]}]),
+
+ %% Test attaching a message
+ send_test(Rcvr, [{['_','_'],[{'==',Rcvr,{self}}],[{message, hello}]}],
+ make_ref(), hello),
+
+ %% Test using a saved trace pattern
+ send_test(Rcvr, 2, make_ref(), false),
+
+ %% Test clearing of trace pattern
+ {ok, [{matched, _node, 1}]} = dbg:ctpe(send),
+ send_test(Rcvr, make_ref(), true),
+
+ %% Test complex message inspection
+ Ref = make_ref(),
+ send_test(Rcvr,
+ [{['_','$2'],[{'==',Ref,{element,1,{element,2,'$2'}}}],[]}],
+ {test, {Ref}, <<0:(8*1024)>>}, true),
+
+ send_test(Rcvr, {test, {make_ref()}, <<0:(8*1024)>>}, false),
+
+ %% Test send to remote process
+ remote_send_test(Rcvr, RemoteRcvr, [], make_ref(), true),
+
+ remote_send_test(Rcvr, RemoteRcvr,
+ [{['$1','_'],[{'==',{node, '$1'},{node}}],[]}],
+ make_ref(), false),
+
+ remote_send_test(Rcvr, RemoteRcvr,
+ [{['$1','_'],[{'==',{node, '$1'},Node}],[]}],
+ make_ref(), true),
+
+ %% Test that distributed dbg works
+ dbg:tracer(Node, process, {fun myhandler/2, self()}),
+ Rcvr2 = spawn_link(Echo),
+ RemoteRcvr2 = spawn_link(Node, Echo),
+ dbg:p(Rcvr2, [send]),
+ dbg:p(RemoteRcvr2, [send]),
+ dbg:tpe(send, [{['_', hej],[],[]}]),
+
+ send_test(Rcvr2, make_ref(), false),
+ send_test(RemoteRcvr2, make_ref(), false),
+ send_test(Rcvr2, hej, true),
+ send_test(RemoteRcvr2, hej, true),
+
+ ok
+
+ after
+ stop()
+ end.
+
+send_test(Pid, Pattern, Msg, TraceEvent) ->
+ {ok, [{matched, _, _}, _]} = dbg:tpe(send, Pattern),
+ send_test(Pid, Msg, TraceEvent).
+send_test(Pid, Pattern) ->
+ send_test(Pid, Pattern, make_ref(), true).
+send_test(Pid, Msg, TraceEvent) ->
+ S = self(),
+ Pid ! {S, Msg},
+ receive Msg -> ok end,
+ send_test_rcv(Pid, Msg, S, TraceEvent).
+
+remote_send_test(Pid, RPid, Pattern, Msg, TraceEvent) ->
+ dbg:tpe(send, Pattern),
+ TMsg = {self(), Msg},
+ Pid ! {RPid, TMsg},
+ receive Msg -> ok end,
+ send_test_rcv(Pid, TMsg, RPid, TraceEvent).
+
+send_test_rcv(Pid, Msg, S, TraceEvent) ->
+ case flush() of
+ [] when not TraceEvent ->
+ ok;
+ [{trace, Pid, send, Msg, S}] when TraceEvent ->
+ ok;
+ [{trace, Pid, send, Msg, S, Message}] when TraceEvent == Message ->
+ ok;
+ Else ->
+ ct:fail({got_unexpected_message, Else})
+ end.
+
+recv(Config) when is_list(Config) ->
+ {ok, _} = start(),
+ Node = start_slave(),
+ rpc:call(Node, code, add_patha,
+ [filename:join(proplists:get_value(data_dir, Config), "..")]),
+ try
+ Echo = fun F() ->
+ receive {From, M} ->
+ From ! M,
+ F()
+ end
+ end,
+ Rcvr = spawn_link(Echo),
+ RemoteRcvr = spawn_link(Node, Echo),
+
+ {ok, [{matched, _, 1}]} = dbg:p(Rcvr, 'receive'),
+
+ recv_test(Rcvr, make_ref(), true),
+
+ %% Test that the test case process is the sending process
+ recv_test(Rcvr, [{[node(), self(), '_'],[],[]}]),
+
+ %% Test that self() is the not sending process
+ {ok, [{matched, _node, 1}, {saved, 2}]} =
+ dbg:tpe('receive', [{[node(), '$1','_'],[{'==','$1',{self}}],[]}]),
+ recv_test(Rcvr, make_ref(), false),
+
+ %% Test that self() is the receiving process
+ recv_test(Rcvr, [{'_',[{'==',Rcvr,{self}}],[]}]),
+
+ %% Test attaching a message
+ recv_test(Rcvr, [{'_',[{'==',Rcvr,{self}}],[{message, hello}]}],
+ make_ref(), hello),
+
+ %% Test using a saved trace pattern
+ recv_test(Rcvr, 2, make_ref(), false),
+
+ %% Test clearing of trace pattern
+ {ok, [{matched, _node, 1}]} = dbg:ctpe('receive'),
+ recv_test(Rcvr, make_ref(), true),
+
+ %% Test complex message inspection
+ Ref = make_ref(),
+ recv_test(Rcvr,
+ [{[node(), '_','$2'],[{'==',Ref,{element,1,
+ {element,2,
+ {element,2,'$2'}}}}],[]}],
+ {test, {Ref}, <<0:(8*1024)>>}, true),
+
+ recv_test(Rcvr, {test, {make_ref()}, <<0:(8*1024)>>}, false),
+
+ %% Test recv to remote process
+ remote_recv_test(RemoteRcvr, Rcvr, [], make_ref(), true),
+
+ remote_recv_test(RemoteRcvr, Rcvr,
+ [{['$1',undefined,'_'],[{'==','$1',{node}}],[]}],
+ make_ref(), false),
+
+ remote_recv_test(RemoteRcvr, Rcvr,
+ [{['$1',undefined,'_'],[{'==','$1',Node}],[]}],
+ make_ref(), true),
+
+ %% Test that distributed dbg works
+ dbg:tracer(Node, process, {fun myhandler/2, self()}),
+ Rcvr2 = spawn_link(Echo),
+ RemoteRcvr2 = spawn_link(Node, Echo),
+ dbg:p(Rcvr2, ['receive']),
+ dbg:p(RemoteRcvr2, ['receive']),
+ dbg:tpe('receive', [{[node(), '_', '$1'],[{'==',{element,2,'$1'}, hej}],[]}]),
+
+ recv_test(Rcvr2, make_ref(), false),
+ recv_test(RemoteRcvr2, make_ref(), false),
+ recv_test(Rcvr2, hej, true),
+ recv_test(RemoteRcvr2, hej, true),
+
+ ok
+
+ after
+ stop()
+ end.
+
+recv_test(Pid, Pattern, Msg, TraceEvent) ->
+ {ok, [{matched, _, _}, _]} = dbg:tpe('receive', Pattern),
+ recv_test(Pid, Msg, TraceEvent).
+recv_test(Pid, Pattern) ->
+ recv_test(Pid, Pattern, make_ref(), true).
+recv_test(Pid, Msg, TraceEvent) ->
+ S = self(),
+ Pid ! {S, Msg},
+ receive Msg -> ok end,
+ recv_test_rcv(Pid, {S, Msg}, TraceEvent).
+
+remote_recv_test(RPid, Pid, Pattern, Msg, TraceEvent) ->
+ dbg:tpe('receive', Pattern),
+ TMsg = {self(), Msg},
+ RPid ! {Pid, TMsg},
+ receive Msg -> ok end,
+ recv_test_rcv(Pid, TMsg, TraceEvent).
+
+recv_test_rcv(Pid, Msg, TraceEvent) ->
+ case flush() of
+ [] when not TraceEvent ->
+ ok;
+ [{trace, Pid, 'receive', Msg}] when TraceEvent ->
+ ok;
+ [{trace, Pid, 'receive', Msg, Message}] when TraceEvent == Message ->
+ ok;
+ Else ->
+ ct:fail({got_unexpected_message, Else})
+ end.
+
%% Simple test of distributed tracing
distributed(Config) when is_list(Config) ->
{ok, _} = start(),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 04:05:59 +0000