X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=rts%2FTrace.c;h=e472c5ade78f3f56f10a6118d512a83ec4f0d645;hp=7194651339e0d9b7a13abbecb0aaf5fbcc1f7f78;hb=b2524b3960999fffdb3767900f58825903f6560f;hpb=c425356c830621e9480d547eff24134037ced63b diff --git a/rts/Trace.c b/rts/Trace.c index 7194651..e472c5a 100644 --- a/rts/Trace.c +++ b/rts/Trace.c @@ -9,22 +9,51 @@ // external headers #include "Rts.h" -#ifdef TRACING - // internal headers #include "Trace.h" + +#ifdef TRACING + #include "GetTime.h" +#include "GetEnv.h" #include "Stats.h" #include "eventlog/EventLog.h" #include "Threads.h" #include "Printer.h" -StgWord32 classes_enabled; // not static due to inline funcs +#ifdef HAVE_UNISTD_H +#include +#endif + +#ifdef DEBUG +// debugging flags, set with +RTS -D +int DEBUG_sched; +int DEBUG_interp; +int DEBUG_weak; +int DEBUG_gccafs; +int DEBUG_gc; +int DEBUG_block_alloc; +int DEBUG_sanity; +int DEBUG_stable; +int DEBUG_stm; +int DEBUG_prof; +int DEBUG_gran; +int DEBUG_par; +int DEBUG_linker; +int DEBUG_squeeze; +int DEBUG_hpc; +int DEBUG_sparks; +#endif + +// events +int TRACE_sched; #ifdef THREADED_RTS static Mutex trace_utx; #endif +static rtsBool eventlog_enabled; + /* --------------------------------------------------------------------------- Starting up / shuttting down the tracing facilities --------------------------------------------------------------------------- */ @@ -37,10 +66,9 @@ void initTracing (void) #ifdef DEBUG #define DEBUG_FLAG(name, class) \ - if (RtsFlags.DebugFlags.name) classes_enabled |= class; + class = RtsFlags.DebugFlags.name ? 1 : 0; DEBUG_FLAG(scheduler, DEBUG_sched); - DEBUG_FLAG(scheduler, TRACE_sched); // -Ds enabled all sched events DEBUG_FLAG(interpreter, DEBUG_interp); DEBUG_FLAG(weak, DEBUG_weak); @@ -57,22 +85,38 @@ void initTracing (void) DEBUG_FLAG(sparks, DEBUG_sparks); #endif -#define TRACE_FLAG(name, class) \ - if (RtsFlags.TraceFlags.name) classes_enabled |= class; + // -Ds turns on scheduler tracing too + TRACE_sched = + RtsFlags.TraceFlags.scheduler || + RtsFlags.DebugFlags.scheduler; - TRACE_FLAG(scheduler, TRACE_sched); + eventlog_enabled = RtsFlags.TraceFlags.tracing == TRACE_EVENTLOG; - initEventLogging(); + if (eventlog_enabled) { + initEventLogging(); + } } void endTracing (void) { - endEventLogging(); + if (eventlog_enabled) { + endEventLogging(); + } } void freeTracing (void) { - freeEventLogging(); + if (eventlog_enabled) { + freeEventLogging(); + } +} + +void resetTracing (void) +{ + if (eventlog_enabled) { + abortEventLogging(); // abort eventlog inherited from parent + initEventLogging(); // child starts its own eventlog + } } /* --------------------------------------------------------------------------- @@ -98,14 +142,26 @@ static char *thread_stop_reasons[] = { [ThreadYielding] = "yielding", [ThreadBlocked] = "blocked", [ThreadFinished] = "finished", - [THREAD_SUSPENDED_FOREIGN_CALL] = "suspended while making a foreign call" + [THREAD_SUSPENDED_FOREIGN_CALL] = "suspended while making a foreign call", + [6 + BlockedOnMVar] = "blocked on an MVar", + [6 + BlockedOnBlackHole] = "blocked on a black hole", + [6 + BlockedOnRead] = "blocked on a read operation", + [6 + BlockedOnWrite] = "blocked on a write operation", + [6 + BlockedOnDelay] = "blocked on a delay operation", + [6 + BlockedOnSTM] = "blocked on STM", + [6 + BlockedOnDoProc] = "blocked on asyncDoProc", + [6 + BlockedOnCCall] = "blocked on a foreign call", + [6 + BlockedOnCCall_Interruptible] = "blocked on a foreign call (interruptible)", + [6 + BlockedOnMsgThrowTo] = "blocked on throwTo", + [6 + ThreadMigrating] = "migrating" }; #endif #ifdef DEBUG static void traceSchedEvent_stderr (Capability *cap, EventTypeNum tag, StgTSO *tso, - StgWord64 other STG_UNUSED) + StgWord info1 STG_UNUSED, + StgWord info2 STG_UNUSED) { ACQUIRE_LOCK(&trace_utx); @@ -129,24 +185,29 @@ static void traceSchedEvent_stderr (Capability *cap, EventTypeNum tag, break; case EVENT_CREATE_SPARK_THREAD: // (cap, spark_thread) debugBelch("cap %d: creating spark thread %lu\n", - cap->no, (long)other); + cap->no, (long)info1); break; case EVENT_MIGRATE_THREAD: // (cap, thread, new_cap) debugBelch("cap %d: thread %lu migrating to cap %d\n", - cap->no, (lnat)tso->id, (int)other); + cap->no, (lnat)tso->id, (int)info1); break; case EVENT_STEAL_SPARK: // (cap, thread, victim_cap) debugBelch("cap %d: thread %lu stealing a spark from cap %d\n", - cap->no, (lnat)tso->id, (int)other); + cap->no, (lnat)tso->id, (int)info1); break; - case EVENT_THREAD_WAKEUP: // (cap, thread, other_cap) + case EVENT_THREAD_WAKEUP: // (cap, thread, info1_cap) debugBelch("cap %d: waking up thread %lu on cap %d\n", - cap->no, (lnat)tso->id, (int)other); + cap->no, (lnat)tso->id, (int)info1); break; case EVENT_STOP_THREAD: // (cap, thread, status) - debugBelch("cap %d: thread %lu stopped (%s)\n", - cap->no, (lnat)tso->id, thread_stop_reasons[other]); + if (info1 == 6 + BlockedOnBlackHole) { + debugBelch("cap %d: thread %lu stopped (blocked on black hole owned by thread %lu)\n", + cap->no, (lnat)tso->id, (long)info2); + } else { + debugBelch("cap %d: thread %lu stopped (%s)\n", + cap->no, (lnat)tso->id, thread_stop_reasons[info1]); + } break; case EVENT_SHUTDOWN: // (cap) debugBelch("cap %d: shutting down\n", cap->no); @@ -163,8 +224,17 @@ static void traceSchedEvent_stderr (Capability *cap, EventTypeNum tag, case EVENT_GC_END: // (cap) debugBelch("cap %d: finished GC\n", cap->no); break; + case EVENT_GC_IDLE: // (cap) + debugBelch("cap %d: GC idle\n", cap->no); + break; + case EVENT_GC_WORK: // (cap) + debugBelch("cap %d: GC working\n", cap->no); + break; + case EVENT_GC_DONE: // (cap) + debugBelch("cap %d: GC done\n", cap->no); + break; default: - debugBelch("cap %2d: thread %lu: event %d\n\n", + debugBelch("cap %d: thread %lu: event %d\n\n", cap->no, (lnat)tso->id, tag); break; } @@ -174,15 +244,104 @@ static void traceSchedEvent_stderr (Capability *cap, EventTypeNum tag, #endif void traceSchedEvent_ (Capability *cap, EventTypeNum tag, - StgTSO *tso, StgWord64 other) + StgTSO *tso, StgWord info1, StgWord info2) +{ +#ifdef DEBUG + if (RtsFlags.TraceFlags.tracing == TRACE_STDERR) { + traceSchedEvent_stderr(cap, tag, tso, info1, info2); + } else +#endif + { + postSchedEvent(cap,tag,tso ? tso->id : 0, info1, info2); + } +} + +void traceCapsetModify_ (EventTypeNum tag, + CapsetID capset, + StgWord32 other) +{ +#ifdef DEBUG + if (RtsFlags.TraceFlags.tracing == TRACE_STDERR) { + ACQUIRE_LOCK(&trace_utx); + + tracePreface(); + switch (tag) { + case EVENT_CAPSET_CREATE: // (capset, capset_type) + debugBelch("created capset %d of type %d\n", capset, other); + break; + case EVENT_CAPSET_DELETE: // (capset) + debugBelch("deleted capset %d\n", capset); + break; + case EVENT_CAPSET_ASSIGN_CAP: // (capset, capno) + debugBelch("assigned cap %d to capset %d\n", other, capset); + break; + case EVENT_CAPSET_REMOVE_CAP: // (capset, capno) + debugBelch("removed cap %d from capset %d\n", other, capset); + break; + } + RELEASE_LOCK(&trace_utx); + } else +#endif + { + if (eventlog_enabled) { + postCapsetModifyEvent(tag, capset, other); + } + } +} + +void traceOSProcessInfo_(void) { + if (eventlog_enabled) { + postCapsetModifyEvent(EVENT_OSPROCESS_PID, + CAPSET_OSPROCESS_DEFAULT, + getpid()); + +#if !defined(cygwin32_HOST_OS) && !defined (mingw32_HOST_OS) +/* Windows has no strong concept of process heirarchy, so no getppid(). + * In any case, this trace event is mainly useful for tracing programs + * that use 'forkProcess' which Windows doesn't support anyway. + */ + postCapsetModifyEvent(EVENT_OSPROCESS_PPID, + CAPSET_OSPROCESS_DEFAULT, + getppid()); +#endif + { + char buf[256]; + snprintf(buf, sizeof(buf), "GHC-%s %s", ProjectVersion, RtsWay); + postCapsetStrEvent(EVENT_RTS_IDENTIFIER, + CAPSET_OSPROCESS_DEFAULT, + buf); + } + { + int argc = 0; char **argv; + getFullProgArgv(&argc, &argv); + if (argc != 0) { + postCapsetVecEvent(EVENT_PROGRAM_ARGS, + CAPSET_OSPROCESS_DEFAULT, + argc, argv); + } + } + { + int envc = 0; char **envv; + getProgEnvv(&envc, &envv); + if (envc != 0) { + postCapsetVecEvent(EVENT_PROGRAM_ENV, + CAPSET_OSPROCESS_DEFAULT, + envc, envv); + } + freeProgEnvv(envc, envv); + } + } +} + +void traceEvent_ (Capability *cap, EventTypeNum tag) { #ifdef DEBUG - if (RtsFlags.TraceFlags.trace_stderr) { - traceSchedEvent_stderr(cap, tag, tso, other); + if (RtsFlags.TraceFlags.tracing == TRACE_STDERR) { + traceSchedEvent_stderr(cap, tag, 0, 0, 0); } else #endif { - postSchedEvent(cap,tag,tso ? tso->id : 0,other); + postEvent(cap,tag); } } @@ -192,7 +351,7 @@ static void traceCap_stderr(Capability *cap, char *msg, va_list ap) ACQUIRE_LOCK(&trace_utx); tracePreface(); - debugBelch("cap %2d: ", cap->no); + debugBelch("cap %d: ", cap->no); vdebugBelch(msg,ap); debugBelch("\n"); @@ -200,16 +359,21 @@ static void traceCap_stderr(Capability *cap, char *msg, va_list ap) } #endif -void traceCap_(Capability *cap, char *msg, va_list ap) +void traceCap_(Capability *cap, char *msg, ...) { + va_list ap; + va_start(ap,msg); + #ifdef DEBUG - if (RtsFlags.TraceFlags.trace_stderr) { + if (RtsFlags.TraceFlags.tracing == TRACE_STDERR) { traceCap_stderr(cap, msg, ap); } else #endif { postCapMsg(cap, msg, ap); } + + va_end(ap); } #ifdef DEBUG @@ -225,22 +389,50 @@ static void trace_stderr(char *msg, va_list ap) } #endif -void trace_(char *msg, va_list ap) +void trace_(char *msg, ...) { + va_list ap; + va_start(ap,msg); + #ifdef DEBUG - if (RtsFlags.TraceFlags.trace_stderr) { + if (RtsFlags.TraceFlags.tracing == TRACE_STDERR) { trace_stderr(msg, ap); } else #endif { postMsg(msg, ap); } + + va_end(ap); +} + +static void traceFormatUserMsg(Capability *cap, char *msg, ...) +{ + va_list ap; + va_start(ap,msg); + +#ifdef DEBUG + if (RtsFlags.TraceFlags.tracing == TRACE_STDERR) { + traceCap_stderr(cap, msg, ap); + } else +#endif + { + if (eventlog_enabled) { + postUserMsg(cap, msg, ap); + } + } + dtraceUserMsg(cap->no, msg); +} + +void traceUserMsg(Capability *cap, char *msg) +{ + traceFormatUserMsg(cap, "%s", msg); } void traceThreadStatus_ (StgTSO *tso USED_IF_DEBUG) { #ifdef DEBUG - if (RtsFlags.TraceFlags.trace_stderr) { + if (RtsFlags.TraceFlags.tracing == TRACE_STDERR) { printThreadStatus(tso); } else #endif @@ -249,6 +441,12 @@ void traceThreadStatus_ (StgTSO *tso USED_IF_DEBUG) } } +void traceEventStartup_(int nocaps) +{ + if (eventlog_enabled) { + postEventStartup(nocaps); + } +} #ifdef DEBUG void traceBegin (const char *str, ...) @@ -270,3 +468,15 @@ void traceEnd (void) #endif /* DEBUG */ #endif /* TRACING */ + +// If DTRACE is enabled, but neither DEBUG nor TRACING, we need a C land +// wrapper for the user-msg probe (as we can't expand that in PrimOps.cmm) +// +#if !defined(DEBUG) && !defined(TRACING) && defined(DTRACE) + +void dtraceUserMsgWrapper(Capability *cap, char *msg) +{ + dtraceUserMsg(cap->no, msg); +} + +#endif /* !defined(DEBUG) && !defined(TRACING) && defined(DTRACE) */