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/* -----------------------------------------------------------------------------
*
* (c) The GHC Team 2006
*
* Debug and performance tracing
*
* ---------------------------------------------------------------------------*/
#include "Rts.h"
#include "OSThreads.h"
#include "Trace.h"
#include "RtsFlags.h"
#include "GetTime.h"
#include "Stats.h"
/*
Features we want:
- multiple log message classes
- outpout thread ID & time on each message
- thread-safe
- trace source locations?
- break into the debugger?
*/
StgWord32 classes_enabled; // not static due to inline funcs
#ifdef THREADED_RTS
static Mutex trace_utx;
#endif
#ifdef DEBUG
#define DEBUG_FLAG(name, class) \
if (RtsFlags.DebugFlags.name) classes_enabled |= class;
#else
#define DEBUG_FLAG(name, class) \
/* nothing */
#endif
#ifdef PAR
#define PAR_FLAG(name, class) \
if (RtsFlags.ParFlags.Debug.name) classes_enabled |= class;
#else
#define PAR_FLAG(name, class) \
/* nothing */
#endif
#ifdef GRAN
#define GRAN_FLAG(name, class) \
if (RtsFlags.GranFlags.Debug.name) classes_enabled |= class;
#else
#define GRAN_FLAG(name, class) \
/* nothing */
#endif
#define TRACE_FLAG(name, class) \
if (RtsFlags.TraceFlags.name) classes_enabled |= class;
void initTracing (void)
{
#ifdef THREADED_RTS
initMutex(&trace_utx);
#endif
DEBUG_FLAG(scheduler, DEBUG_sched);
DEBUG_FLAG(interpreter, DEBUG_interp);
DEBUG_FLAG(weak, DEBUG_weak);
DEBUG_FLAG(gccafs, DEBUG_gccafs);
DEBUG_FLAG(gc, DEBUG_gc);
DEBUG_FLAG(block_alloc, DEBUG_block_alloc);
DEBUG_FLAG(sanity, DEBUG_sanity);
DEBUG_FLAG(stable, DEBUG_stable);
DEBUG_FLAG(stm, DEBUG_stm);
DEBUG_FLAG(prof, DEBUG_prof);
DEBUG_FLAG(gran, DEBUG_gran);
DEBUG_FLAG(par, DEBUG_par);
DEBUG_FLAG(linker, DEBUG_linker);
DEBUG_FLAG(squeeze, DEBUG_squeeze);
DEBUG_FLAG(hpc, DEBUG_hpc);
PAR_FLAG(verbose, PAR_DEBUG_verbose);
PAR_FLAG(bq, PAR_DEBUG_bq);
PAR_FLAG(schedule, PAR_DEBUG_schedule);
PAR_FLAG(free, PAR_DEBUG_free);
PAR_FLAG(resume, PAR_DEBUG_resume);
PAR_FLAG(weight, PAR_DEBUG_weight);
PAR_FLAG(fetch, PAR_DEBUG_fetch);
PAR_FLAG(fish, PAR_DEBUG_fish);
PAR_FLAG(tables, PAR_DEBUG_tables);
PAR_FLAG(packet, PAR_DEBUG_packet);
PAR_FLAG(pack, PAR_DEBUG_pack);
PAR_FLAG(paranoia, PAR_DEBUG_paranoia);
GRAN_FLAG(event_trace, GRAN_DEBUG_event_trace);
GRAN_FLAG(event_stats, GRAN_DEBUG_event_stats);
GRAN_FLAG(bq, GRAN_DEBUG_bq);
GRAN_FLAG(pack, GRAN_DEBUG_pack);
GRAN_FLAG(checkSparkQ, GRAN_DEBUG_checkSparkQ);
GRAN_FLAG(thunkStealing, GRAN_DEBUG_thunkStealing);
GRAN_FLAG(randomSteal, GRAN_DEBUG_randomSteal);
GRAN_FLAG(findWork, GRAN_DEBUG_findWork);
GRAN_FLAG(unused, GRAN_DEBUG_unused);
GRAN_FLAG(pri, GRAN_DEBUG_pri);
GRAN_FLAG(checkLight, GRAN_DEBUG_checkLight);
GRAN_FLAG(sortedQ, GRAN_DEBUG_sortedQ);
GRAN_FLAG(blockOnFetch, GRAN_DEBUG_blockOnFetch);
GRAN_FLAG(packBuffer, GRAN_DEBUG_packBuffer);
GRAN_FLAG(blockedOnFetch_sanity, GRAN_DEBUG_BOF_sanity);
TRACE_FLAG(sched, TRACE_sched);
}
static void tracePreface (void)
{
#ifdef THREADED_RTS
debugBelch("%12lx: ", (unsigned long)osThreadId());
#endif
if (RtsFlags.TraceFlags.timestamp) {
debugBelch("%9" FMT_Word64 ": ", stat_getElapsedTime());
}
}
void trace (StgWord32 class, const char *str, ...)
{
va_list ap;
va_start(ap,str);
ACQUIRE_LOCK(&trace_utx);
if ((classes_enabled & class) != 0) {
tracePreface();
vdebugBelch(str,ap);
debugBelch("\n");
}
RELEASE_LOCK(&trace_utx);
va_end(ap);
}
void traceBegin (const char *str, ...)
{
va_list ap;
va_start(ap,str);
ACQUIRE_LOCK(&trace_utx);
tracePreface();
vdebugBelch(str,ap);
}
void traceEnd (void)
{
debugBelch("\n");
RELEASE_LOCK(&trace_utx);
}
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