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-rw-r--r--erts/emulator/beam/erl_bif_trace.c20
-rw-r--r--erts/emulator/test/trace_local_SUITE.erl119
2 files changed, 129 insertions, 10 deletions
diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c
index e88fb8c9f4..06cec1795d 100644
--- a/erts/emulator/beam/erl_bif_trace.c
+++ b/erts/emulator/beam/erl_bif_trace.c
@@ -118,7 +118,6 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
int is_global;
Process *meta_tracer_proc = p;
Eterm meta_tracer_pid = p->id;
- int is_blocking = 0;
if (!erts_try_seize_code_write_permission(p)) {
ERTS_BIF_YIELD3(bif_export[BIF_trace_pattern_3], p, MFA, Pattern, flaglist);
@@ -1370,12 +1369,8 @@ erts_set_trace_pattern(Process*p, Eterm* mfa, int specified,
BeamInstr* pc = fp[i].pc;
Export* ep = (Export *)(((char *)(pc-3)) - offsetof(Export, code));
- if (!on || flags.breakpoint) {
- erts_clear_call_trace_bif(pc, 0);
- if (pc[0] == (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
- pc[0] = (BeamInstr) BeamOp(op_jump_f);
- }
- } else {
+ if (on && !flags.breakpoint) {
+ /* Turn on global call tracing */
if (ep->addressv[code_ix] != pc) {
fp[i].mod->curr.num_traced_exports++;
#ifdef DEBUG
@@ -1388,6 +1383,17 @@ erts_set_trace_pattern(Process*p, Eterm* mfa, int specified,
if (ep->addressv[code_ix] != pc) {
pc[0] = (BeamInstr) BeamOp(op_i_generic_breakpoint);
}
+ } else if (!on && flags.breakpoint) {
+ /* Turn off breakpoint tracing -- nothing to do here. */
+ } else {
+ /*
+ * Turn off global tracing, either explicitly or implicitly
+ * before turning on breakpoint tracing.
+ */
+ erts_clear_call_trace_bif(pc, 0);
+ if (pc[0] == (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+ pc[0] = (BeamInstr) BeamOp(op_jump_f);
+ }
}
}
diff --git a/erts/emulator/test/trace_local_SUITE.erl b/erts/emulator/test/trace_local_SUITE.erl
index 54f8cc3c30..1e0705fabe 100644
--- a/erts/emulator/test/trace_local_SUITE.erl
+++ b/erts/emulator/test/trace_local_SUITE.erl
@@ -70,7 +70,8 @@ config(priv_dir,_) ->
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2, basic/1, bit_syntax/1,
- return/1, on_and_off/1, stack_grow/1,info/1, delete/1,
+ return/1, on_and_off/1, systematic_on_off/1,
+ stack_grow/1,info/1, delete/1,
exception/1, exception_apply/1,
exception_function/1, exception_apply_function/1,
exception_nocatch/1, exception_nocatch_apply/1,
@@ -105,7 +106,8 @@ all() ->
case test_server:is_native(trace_local_SUITE) of
true -> [not_run];
false ->
- [basic, bit_syntax, return, on_and_off, stack_grow,
+ [basic, bit_syntax, return, on_and_off, systematic_on_off,
+ stack_grow,
info, delete, exception, exception_apply,
exception_function, exception_apply_function,
exception_nocatch, exception_nocatch_apply,
@@ -583,7 +585,118 @@ on_and_off_test() ->
end,
?line ?NM,
ok.
-
+
+systematic_on_off(Config) when is_list(Config) ->
+ setup([call]),
+ Local = combinations([local,meta,call_count,call_time]),
+ [systematic_on_off_1(Flags) || Flags <- Local],
+
+ %% Make sure that we don't get any trace messages when trace
+ %% is supposed to be off.
+ receive_no_next(500).
+
+systematic_on_off_1(Local) ->
+ io:format("~p\n", [Local]),
+
+ %% Global off.
+ verify_trace_info(false, []),
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, true, Local),
+ verify_trace_info(false, Local),
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, false, [global]),
+ verify_trace_info(false, Local),
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, false, Local),
+ verify_trace_info(false, []),
+
+ %% Global on.
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, true, [global]),
+ verify_trace_info(true, []),
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, false, Local),
+ verify_trace_info(true, []),
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, false, [global]),
+ verify_trace_info(false, []),
+
+ %% Implicitly turn off global call trace.
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, true, [global]),
+ verify_trace_info(true, []),
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, true, Local),
+ verify_trace_info(false, Local),
+
+ %% Implicitly turn off local call trace.
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, true, [global]),
+ verify_trace_info(true, []),
+
+ %% Turn off global call trace. Everything should be off now.
+ 1 = erlang:trace_pattern({?MODULE,exported_wrap,1}, false, [global]),
+ verify_trace_info(false, []),
+
+ ok.
+
+verify_trace_info(Global, Local) ->
+ case erlang:trace_info({?MODULE,exported_wrap,1}, all) of
+ {all,false} ->
+ false = Global,
+ [] = Local;
+ {all,Ps} ->
+ io:format("~p\n", [Ps]),
+ [verify_trace_info(P, Global, Local) || P <- Ps]
+ end,
+ global_call(Global, Local),
+ local_call(Local),
+ ok.
+
+verify_trace_info({traced,global}, true, []) -> ok;
+verify_trace_info({traced,local}, false, _) -> ok;
+verify_trace_info({match_spec,[]}, _, _) -> ok;
+verify_trace_info({meta_match_spec,[]}, _, _) -> ok;
+verify_trace_info({LocalFlag,Bool}, _, Local) when is_boolean(Bool) ->
+ try
+ Bool = lists:member(LocalFlag, Local)
+ catch
+ error:_ ->
+ io:format("Line ~p: {~p,~p}, false, ~p\n",
+ [?LINE,LocalFlag,Bool,Local]),
+ ?t:fail()
+ end;
+verify_trace_info({meta,Pid}, false, Local) when is_pid(Pid) ->
+ true = lists:member(meta, Local);
+verify_trace_info({call_time,_}, false, Local) ->
+ true = lists:member(call_time, Local);
+verify_trace_info({call_count,_}, false, Local) ->
+ true = lists:member(call_time, Local).
+
+global_call(Global, Local) ->
+ apply_slave(?MODULE, exported_wrap, [global_call]),
+ case Global of
+ false ->
+ recv_local_call(Local, [global_call]);
+ true ->
+ ?CT(?MODULE, exported_wrap, [global_call])
+ end.
+
+local_call(Local) ->
+ lambda_slave(fun() -> exported_wrap(local_call) end),
+ recv_local_call(Local, [local_call]).
+
+recv_local_call(Local, Args) ->
+ case lists:member(local, Local) of
+ false ->
+ ok;
+ true ->
+ ?CT(?MODULE, exported_wrap, Args)
+ end,
+ case lists:member(meta, Local) of
+ false ->
+ ok;
+ true ->
+ ?CTT(?MODULE, exported_wrap, Args)
+ end,
+ ok.
+
+combinations([_]=One) ->
+ [One];
+combinations([H|T]) ->
+ Cs = combinations(T),
+ [[H|C] || C <- Cs] ++ Cs.
stack_grow_test() ->
?line setup([call,return_to]),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 16:20:23 +0000