diff options
Diffstat (limited to 'erts/emulator/beam/erl_bif_trace.c')
| -rw-r--r-- | erts/emulator/beam/erl_bif_trace.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c index 6515eafbd5..764548d884 100644 --- a/erts/emulator/beam/erl_bif_trace.c +++ b/erts/emulator/beam/erl_bif_trace.c @@ -58,10 +58,17 @@ static struct { /* Protected by code write permission */ int local; BpFunctions f; /* Local functions */ BpFunctions e; /* Export entries */ +#ifdef ERTS_SMP + Process* stager; + ErtsThrPrgrLaterOp lop; +#endif } finish_bp; static Eterm trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist); +#ifdef ERTS_SMP +static void smp_bp_finisher(void* arg); +#endif static BIF_RETTYPE system_monitor(Process *p, Eterm monitor_pid, Eterm list); @@ -350,7 +357,10 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist) #ifdef ERTS_SMP if (finish_bp.current >= 0) { ASSERT(matches >= 0); - erts_notify_finish_breakpointing(p); + ASSERT(finish_bp.stager == NULL); + finish_bp.stager = p; + erts_schedule_thr_prgr_later_op(smp_bp_finisher, NULL, &finish_bp.lop); + erts_smp_proc_inc_refc(p); erts_suspend(p, ERTS_PROC_LOCK_MAIN, NULL); ERTS_BIF_YIELD_RETURN(p, make_small(matches)); } @@ -366,6 +376,29 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist) } } +#ifdef ERTS_SMP +static void smp_bp_finisher(void* null) +{ + if (erts_finish_breakpointing()) { /* Not done */ + /* Arrange for being called again */ + erts_schedule_thr_prgr_later_op(smp_bp_finisher, NULL, &finish_bp.lop); + } + else { /* Done */ + Process* p = finish_bp.stager; +#ifdef DEBUG + finish_bp.stager = NULL; +#endif + erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); + if (!ERTS_PROC_IS_EXITING(p)) { + erts_resume(p, ERTS_PROC_LOCK_STATUS); + } + erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_smp_proc_dec_refc(p); + erts_release_code_write_permission(); + } +} +#endif /* ERTS_SMP */ + void erts_get_default_trace_pattern(int *trace_pattern_is_on, Binary **match_spec, @@ -1531,7 +1564,6 @@ erts_finish_breakpointing(void) * are blocked, in which case memory barriers will be issued * when they are awaken.) */ - switch (finish_bp.current++) { case 0: /* |