diff options
Diffstat (limited to 'erts/emulator/beam/erl_trace.c')
| -rw-r--r-- | erts/emulator/beam/erl_trace.c | 196 |
1 files changed, 133 insertions, 63 deletions
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c index 8833137112..009ca1eb52 100644 --- a/erts/emulator/beam/erl_trace.c +++ b/erts/emulator/beam/erl_trace.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2011. All Rights Reserved. + * Copyright Ericsson AB 1999-2012. 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 @@ -36,6 +36,7 @@ #include "error.h" #include "erl_binary.h" #include "erl_bits.h" +#include "erl_thr_progress.h" #if 0 #define DEBUG_PRINTOUTS @@ -124,8 +125,13 @@ do { \ enqueue_sys_msg_unlocked(SYS_MSG_TYPE_TRACE, (FPID), (TPID), (MSG), (BP)); \ } while(0) #else +#ifdef USE_VM_PROBES #define ERTS_ENQ_TRACE_MSG(FPID, TPROC, MSG, BP) \ - erts_queue_message((TPROC), NULL, (BP), (MSG), NIL) + erts_queue_message((TPROC), NULL, (BP), (MSG), NIL, NIL) +#else +#define ERTS_ENQ_TRACE_MSG(FPID, TPROC, MSG, BP) \ + erts_queue_message((TPROC), NULL, (BP), (MSG), NIL) +#endif #endif /* @@ -159,7 +165,7 @@ static Uint active_sched; void erts_system_profile_setup_active_schedulers(void) { - ERTS_SMP_LC_ASSERT(erts_is_system_blocked(0)); + ERTS_SMP_LC_ASSERT(erts_thr_progress_is_blocking()); active_sched = erts_active_schedulers(); } @@ -543,7 +549,7 @@ send_to_port(Process *c_p, Eterm message, */ static void -profile_send(Eterm message) { +profile_send(Eterm from, Eterm message) { Uint sz = 0; ErlHeapFragment *bp = NULL; Uint *hp = NULL; @@ -553,6 +559,9 @@ profile_send(Eterm message) { Eterm profiler = erts_get_system_profile(); + /* do not profile profiler pid */ + if (from == profiler) return; + if (is_internal_port(profiler)) { Port *profiler_port = NULL; @@ -579,7 +588,11 @@ profile_send(Eterm message) { hp = erts_alloc_message_heap(sz, &bp, &off_heap, profile_p, 0); msg = copy_struct(message, sz, &hp, &bp->off_heap); - erts_queue_message(profile_p, NULL, bp, msg, NIL); + erts_queue_message(profile_p, NULL, bp, msg, NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); } } @@ -990,9 +1003,13 @@ seq_trace_update_send(Process *p) { Eterm seq_tracer = erts_get_system_seq_tracer(); ASSERT((is_tuple(SEQ_TRACE_TOKEN(p)) || is_nil(SEQ_TRACE_TOKEN(p)))); - if ( (p->id == seq_tracer) || (SEQ_TRACE_TOKEN(p) == NIL)) + if ( (p->id == seq_tracer) || (SEQ_TRACE_TOKEN(p) == NIL) +#ifdef USE_VM_PROBES + || (SEQ_TRACE_TOKEN(p) == am_have_dt_utag) +#endif + ) { return 0; - + } SEQ_TRACE_TOKEN_SENDER(p) = p->id; /* Internal pid */ SEQ_TRACE_TOKEN_SERIAL(p) = make_small(++(p -> seq_trace_clock)); @@ -1174,7 +1191,11 @@ seq_trace_output_generic(Eterm token, Eterm msg, Uint type, enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SEQTRACE, NIL, NIL, mess, bp); erts_smp_mtx_unlock(&smq_mtx); #else - erts_queue_message(tracer, NULL, bp, mess, NIL); /* trace_token must be NIL here */ + erts_queue_message(tracer, NULL, bp, mess, NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); /* trace_token must be NIL here */ #endif } } @@ -1940,7 +1961,8 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data) Eterm* hp; int need; - ERTS_SMP_LC_ASSERT((erts_proc_lc_my_proc_locks(t_p) != 0) || erts_is_system_blocked(0)); + ERTS_SMP_LC_ASSERT((erts_proc_lc_my_proc_locks(t_p) != 0) + || erts_thr_progress_is_blocking()); if (is_internal_port(t_p->tracer_proc)) { #define LOCAL_HEAP_SIZE (5+5) DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE); @@ -2092,8 +2114,7 @@ void save_calls(Process *p, Export *e) * entries instead of the original BIF functions. */ Eterm -erts_bif_trace(int bif_index, Process* p, - Eterm arg1, Eterm arg2, Eterm arg3, BeamInstr *I) +erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I) { Eterm result; int meta = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_META); @@ -2107,10 +2128,10 @@ erts_bif_trace(int bif_index, Process* p, * no tracing will occur. Doing the whole else branch will * also do nothing, only slower. */ - Eterm (*func)(Process*, Eterm, Eterm, Eterm, BeamInstr*) = bif_table[bif_index].f; - result = func(p, arg1, arg2, arg3, I); + Eterm (*func)(Process*, Eterm*, BeamInstr*) = bif_table[bif_index].f; + result = func(p, args, I); } else { - Eterm (*func)(Process*, Eterm, Eterm, Eterm, BeamInstr*); + Eterm (*func)(Process*, Eterm*, BeamInstr*); Export* ep = bif_export[bif_index]; Uint32 flags = 0, flags_meta = 0; int global = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_GLOBAL); @@ -2122,8 +2143,6 @@ erts_bif_trace(int bif_index, Process* p, * export entry */ BeamInstr *cp = p->cp; - Eterm args[3] = {arg1, arg2, arg3}; - /* * Make continuation pointer OK, it is not during direct BIF calls, * but it is correct during apply of bif. @@ -2155,7 +2174,7 @@ erts_bif_trace(int bif_index, Process* p, func = bif_table[bif_index].f; - result = func(p, arg1, arg2, arg3, I); + result = func(p, args, I); if (applying && (flags & MATCH_SET_RETURN_TO_TRACE)) { BeamInstr i_return_trace = beam_return_trace[0]; @@ -2467,7 +2486,11 @@ monitor_long_gc(Process *p, Uint time) { #ifdef ERTS_SMP enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp); #else - erts_queue_message(monitor_p, NULL, bp, msg, NIL); + erts_queue_message(monitor_p, NULL, bp, msg, NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); #endif } @@ -2539,7 +2562,11 @@ monitor_large_heap(Process *p) { #ifdef ERTS_SMP enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp); #else - erts_queue_message(monitor_p, NULL, bp, msg, NIL); + erts_queue_message(monitor_p, NULL, bp, msg, NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); #endif } @@ -2569,7 +2596,11 @@ monitor_generic(Process *p, Eterm type, Eterm spec) { #ifdef ERTS_SMP enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp); #else - erts_queue_message(monitor_p, NULL, bp, msg, NIL); + erts_queue_message(monitor_p, NULL, bp, msg, NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); #endif } @@ -2618,7 +2649,7 @@ profile_scheduler(Eterm scheduler_id, Eterm state) { make_small(active_sched), timestamp); hp += 7; #ifndef ERTS_SMP - profile_send(msg); + profile_send(NIL, msg); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE #else @@ -2653,7 +2684,7 @@ profile_scheduler_q(Eterm scheduler_id, Eterm state, Eterm no_schedulers, Uint M timestamp = TUPLE3(hp, make_small(Ms), make_small(s), make_small(us)); hp += 4; msg = TUPLE6(hp, am_profile, am_scheduler, scheduler_id, state, no_schedulers, timestamp); hp += 7; #ifndef ERTS_SMP - profile_send(msg); + profile_send(NIL, msg); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE #else @@ -2745,7 +2776,8 @@ trace_port(Port *t_p, Eterm what, Eterm data) { Eterm mess; Eterm* hp; - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(t_p) || erts_is_system_blocked(0)); + ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(t_p) + || erts_thr_progress_is_blocking()); if (is_internal_port(t_p->tracer_proc)) { #define LOCAL_HEAP_SIZE (5+5) @@ -2919,11 +2951,11 @@ profile_runnable_port(Port *p, Eterm status) { msg = TUPLE5(hp, am_profile, p->id, status, count, timestamp); hp += 6; #ifndef ERTS_SMP - profile_send(msg); + profile_send(p->id, msg); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE #else - enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, NIL, NIL, msg, bp); + enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->id, NIL, msg, bp); #endif erts_smp_mtx_unlock(&smq_mtx); } @@ -2972,11 +3004,11 @@ profile_runnable_proc(Process *p, Eterm status){ timestamp = TUPLE3(hp, make_small(Ms), make_small(s), make_small(us)); hp += 4; msg = TUPLE5(hp, am_profile, p->id, status, where, timestamp); hp += 6; #ifndef ERTS_SMP - profile_send(msg); + profile_send(p->id, msg); UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE); #undef LOCAL_HEAP_SIZE #else - enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, NIL, NIL, msg, bp); + enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->id, NIL, msg, bp); #endif erts_smp_mtx_unlock(&smq_mtx); } @@ -3021,8 +3053,6 @@ static ErtsSysMsgQ *sys_message_queue_end; static erts_tid_t sys_msg_dispatcher_tid; static erts_cnd_t smq_cnd; -static int dispatcher_waiting; - ERTS_QUALLOC_IMPL(smq_element, ErtsSysMsgQ, 20, ERTS_ALC_T_SYS_MSG_Q) static void @@ -3066,18 +3096,6 @@ enqueue_sys_msg(enum ErtsSysMsgType type, erts_smp_mtx_unlock(&smq_mtx); } -static void -prepare_for_block(void *unused) -{ - erts_smp_mtx_unlock(&smq_mtx); -} - -static void -resume_after_block(void *unused) -{ - erts_smp_mtx_lock(&smq_mtx); -} - void erts_queue_error_logger_message(Eterm from, Eterm msg, ErlHeapFragment *bp) { @@ -3143,10 +3161,10 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver) && !erts_system_monitor_flags.busy_port && !erts_system_monitor_flags.busy_dist_port) break; /* Everything is disabled */ - erts_smp_block_system(ERTS_BS_FLG_ALLOW_GC); + erts_smp_thr_progress_block(); if (system_monitor == receiver || receiver == NIL) erts_system_monitor_clear(NULL); - erts_smp_release_system(); + erts_smp_thr_progress_unblock(); break; case SYS_MSG_TYPE_SYSPROF: if (receiver == NIL @@ -3156,11 +3174,11 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver) && !erts_system_profile_flags.scheduler) break; /* Block system to clear flags */ - erts_smp_block_system(0); + erts_smp_thr_progress_block(); if (system_profile == receiver || receiver == NIL) { erts_system_profile_clear(NULL); } - erts_smp_release_system(); + erts_smp_thr_progress_unblock(); break; case SYS_MSG_TYPE_ERRLGR: { char *no_elgger = "(no error logger present)"; @@ -3201,22 +3219,68 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver) } } +static void +sys_msg_dispatcher_wakeup(void *vwait_p) +{ + int *wait_p = (int *) vwait_p; + erts_smp_mtx_lock(&smq_mtx); + *wait_p = 0; + erts_smp_cnd_signal(&smq_cnd); + erts_smp_mtx_unlock(&smq_mtx); +} + +static void +sys_msg_dispatcher_prep_wait(void *vwait_p) +{ + int *wait_p = (int *) vwait_p; + erts_smp_mtx_lock(&smq_mtx); + *wait_p = 1; + erts_smp_mtx_unlock(&smq_mtx); +} + +static void +sys_msg_dispatcher_fin_wait(void *vwait_p) +{ + int *wait_p = (int *) vwait_p; + erts_smp_mtx_lock(&smq_mtx); + *wait_p = 0; + erts_smp_mtx_unlock(&smq_mtx); +} + +static void +sys_msg_dispatcher_wait(void *vwait_p) +{ + int *wait_p = (int *) vwait_p; + erts_smp_mtx_lock(&smq_mtx); + while (*wait_p) + erts_smp_cnd_wait(&smq_cnd, &smq_mtx); + erts_smp_mtx_unlock(&smq_mtx); +} + static void * sys_msg_dispatcher_func(void *unused) { + ErtsThrPrgrCallbacks callbacks; ErtsSysMsgQ *local_sys_message_queue = NULL; + int wait = 0; #ifdef ERTS_ENABLE_LOCK_CHECK erts_lc_set_thread_name("system message dispatcher"); #endif - erts_register_blockable_thread(); - erts_smp_activity_begin(ERTS_ACTIVITY_IO, NULL, NULL, NULL); + callbacks.arg = (void *) &wait; + callbacks.wakeup = sys_msg_dispatcher_wakeup; + callbacks.prepare_wait = sys_msg_dispatcher_prep_wait; + callbacks.wait = sys_msg_dispatcher_wait; + callbacks.finalize_wait = sys_msg_dispatcher_fin_wait; + + erts_thr_progress_register_managed_thread(NULL, &callbacks, 0); while (1) { + int end_wait = 0; ErtsSysMsgQ *smqp; - ERTS_SMP_LC_ASSERT(!ERTS_LC_IS_BLOCKING); + ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); erts_smp_mtx_lock(&smq_mtx); @@ -3228,20 +3292,16 @@ sys_msg_dispatcher_func(void *unused) } /* Fetch current trace message queue ... */ - erts_smp_activity_change(ERTS_ACTIVITY_IO, - ERTS_ACTIVITY_WAIT, - prepare_for_block, - resume_after_block, - NULL); - dispatcher_waiting = 1; + if (!sys_message_queue) { + erts_smp_mtx_unlock(&smq_mtx); + end_wait = 1; + erts_thr_progress_active(NULL, 0); + erts_thr_progress_prepare_wait(NULL); + erts_smp_mtx_lock(&smq_mtx); + } + while (!sys_message_queue) erts_smp_cnd_wait(&smq_cnd, &smq_mtx); - dispatcher_waiting = 0; - erts_smp_activity_change(ERTS_ACTIVITY_WAIT, - ERTS_ACTIVITY_IO, - prepare_for_block, - resume_after_block, - NULL); local_sys_message_queue = sys_message_queue; sys_message_queue = NULL; @@ -3249,6 +3309,11 @@ sys_msg_dispatcher_func(void *unused) erts_smp_mtx_unlock(&smq_mtx); + if (end_wait) { + erts_thr_progress_finalize_wait(NULL); + erts_thr_progress_active(NULL, 1); + } + /* Send trace messages ... */ ASSERT(local_sys_message_queue); @@ -3259,6 +3324,9 @@ sys_msg_dispatcher_func(void *unused) Process *proc = NULL; Port *port = NULL; + if (erts_thr_progress_update(NULL)) + erts_thr_progress_leader_update(NULL); + #ifdef DEBUG_PRINTOUTS print_msg_type(smqp); #endif @@ -3318,7 +3386,11 @@ sys_msg_dispatcher_func(void *unused) } else { queue_proc_msg: - erts_queue_message(proc,&proc_locks,smqp->bp,smqp->msg,NIL); + erts_queue_message(proc,&proc_locks,smqp->bp,smqp->msg,NIL +#ifdef USE_VM_PROBES + , NIL +#endif + ); #ifdef DEBUG_PRINTOUTS erts_fprintf(stderr, "delivered\n"); #endif @@ -3372,7 +3444,6 @@ sys_msg_dispatcher_func(void *unused) } } - erts_smp_activity_end(ERTS_ACTIVITY_IO, NULL, NULL, NULL); return NULL; } @@ -3422,7 +3493,6 @@ init_sys_msg_dispatcher(void) sys_message_queue_end = NULL; erts_smp_cnd_init(&smq_cnd); erts_smp_mtx_init(&smq_mtx, "sys_msg_q"); - dispatcher_waiting = 0; erts_smp_thr_create(&sys_msg_dispatcher_tid, sys_msg_dispatcher_func, NULL, |