diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/beam/erl_bif_trace.c | 19 | ||||
| -rw-r--r-- | erts/emulator/test/trace_local_SUITE.erl | 119 |
2 files changed, 129 insertions, 9 deletions
diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c index 6515eafbd5..06cec1795d 100644 --- a/erts/emulator/beam/erl_bif_trace.c +++ b/erts/emulator/beam/erl_bif_trace.c @@ -1369,12 +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 @@ -1387,6 +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]), |